The invention also relates to a parallel-flow regenerative (PFR) shaft kiln (1) for burning and cooling material, such as carbonate rock, said kiln having two shafts (2) which can be operated alternately as a combustion shaft (2a) and a regenerative shaft (2b) and are connected to each other by means of a connecting channel (19), wherein: each shaft (2) has, in the flow direction of the material, a preheating zone (21) for preheating the material, a combustion zone (20) for burning the material and a cooling zone (22) for cooling the material; each shaft (2) has a waste gas outlet (6) for discharging waste gas from the shaft (2); and the PFR shaft kiln (1) has at least one cooling gas duct (44) for conducting cooling gas from the cooling zone (22) to the preheating zone (21). The invention also relates to a method for burning material, such as carbonate rock, in a parallel-flow regenerative shaft kiln (1) with two shafts (2) which are operated alternately as a burning shaft and a regenerative shaft and are connected to each other by means of a connecting channel (19), wherein: the material flows through a material inlet (3) into a preheating zone (21) for preheating the material, a combustion zone (20) for burning the material and a cooling zone (22) for cooling the material in order to reach a material outlet (40); a cooling gas is introduced into the cooling zone; waste gas is discharged from one of the shafts (2) via an exhaust gas outlet (6); and the cooling gas is conducted to the preheating zone (21) via a cool gas duct (44).
The invention also relates to a parallel-flow regenerative (PFR) shaft kiln (1) for burning and cooling material, such as carbonate rock, said kiln having two shafts (2) which can be operated alternately as a combustion shaft (2a) and a regenerative shaft (2b) and are connected to each other by means of a connecting channel (19), wherein: each shaft (2) has, in the flow direction of the material, a preheating zone (21) for preheating the material, a combustion zone (20) for burning the material and a cooling zone (22) for cooling the material; each shaft (2) has an exhaust gas outlet (6) for discharging exhaust gas from the shaft (2); the PFR shaft kiln (1) has at least one cooling gas outlet (17) for discharging cooling gas from the shaft (2); and the cooling gas outlet (17) is located in the preheating zone (21) or the combustion zone (20). The invention also relates to a method for burning material, such as carbonate rock, in a parallel-flow regenerative shaft kiln (1) with two shafts (2) which are operated alternately as a burning shaft and a regenerative shaft and are connected to each other by means of a connecting channel (19), wherein: the material flows through a material inlet (3) into a preheating zone (21) for preheating the material, a combustion zone (20) for burning the material and a cooling zone (22) for cooling the material in order to reach a material outlet (40); a cooling gas is introduced into the cooling zone; exhaust gas is discharged from one of the shafts (2) via an exhaust gas outlet (6); and the cooling gas is discharged from at least one of the shafts (2) via a cooling gas outlet (17) in the preheating zone (21) or the combustion zone (20).
A method for burning material, such as carbonate rocks, in a parallel-flow regenerative shaft kiln having two shafts which are operated alternately as a burning shaft and as a regenerative shaft and are connected to one another by means of a connecting channel, wherein the material flows through a material inlet into a preheating zone for preheating the material, a burning zone for burning the material and a cooling zone for cooling the material to a material outlet, wherein a cooling gas is admitted into the cooling zone, wherein exhaust gas is discharged from one of the shafts via an exhaust gas outlet, wherein the exhaust gas discharged from the shaft via the exhaust gas outlet is at least partially introduced into at least one of the shafts.
The invention relates to a parallel-flow regenerative shaft kiln (1) for burning and cooling a material, such as carbonate rock, comprising two shafts (2) which can be operated as a burning shaft and a regenerative shaft in an alternating manner and which are connected together by means of a connection channel (2). Each shaft (2) has, in the flow direction of the material, a pre-heating zone (21) for pre-heating the material, a burning zone (20) for burning the material, and a cooling zone (22) for cooling the material, wherein the cooling zone (22) has a cooling gas inlet (23) for introducing cooling gas into the cooling zone (22) and a cooling gas discharge device (17) for discharging cooling gas out of the shaft (2). A post-calcination zone (9) is formed behind the burning zone (20) in the flow direction of the material, said post-calcination zone being designed to post-calcinate the material exiting the burning zone (20) at a gas temperature of 800 °C to 1100 °C, in particular 900 °C to 1000 °C, preferably approximately 850 °C to 950 °C
The invention relates to a method for burning a material, such as carbonate rock, in a parallel-flow regenerative shaft kiln (1), comprising two shafts (2) which are operated as a burning shaft and a regenerative shaft in an alternating manner and which are connected together by means of a connection channel (19). The material flows through a material inlet (3) into a pre-heating zone (21) for pre-heating the material, a burning zone (20) for burning the material, and a cooling zone (22) for cooling the material, and the material flows to a material outlet (40). A cooling gas is introduced into the cooling zone (22), wherein exhaust gas is discharged out of a shaft (2) of the kiln via an exhaust gas outlet (6) arranged within or above the pre-heating zone (21), and exhaust gas discharged out of the shaft (2) via the exhaust gas outlet (6) is divided into a first part of the exhaust gas and a second part of the exhaust gas. The first part of the exhaust gas is supplied to an upper region of the pre-heating zone (21) via a first exhaust gas inlet (12), and the second part of the exhaust gas discharged out of the shaft (2) is supplied to the pre-heating zone (21) via a second exhaust gas inlet (15) downstream of the first exhaust gas inlet (12).
The present invention relates to a method for the shaft reversal in a parallel-flow regenerative shaft furnace (1), the method comprising the following steps: a operating the first shaft (2) as a combustion shaft and operating the second shaft (2) as a regenerative shaft, b terminating the fuel supply through the first fuel supply line and, as a result, performing burning out in the first shaft (2), c closing the second flue gas outlet (6), after the start of step c and prior to the end of step c, starting with the following steps d to f: d opening the second combustion gas inlet (12), e closing the first combustion gas inlet (12), f opening the first flue gas outlet (6), g starting the fuel supply through the second fuel supply line and, as a result, operating the second shaft (2) as a combustion shaft and the first shaft (2) as a regenerative shaft.
A method can be used to burn and cool material in a parallel flow-counter flow regenerative shaft kiln having two shafts that are operated alternately as a burning shaft and a regenerative shaft. The material flows through a preheating zone, a burning zone, and a cooling zone to a material outlet. Fuel is supplied in or above the preheating zone, and thus fuel is heated in the preheating zone prior to entering the burning zone. Further, a parallel flow-counter flow regenerative shaft kiln for burning and cooling material may have two shafts that can be operated alternately as a burning shaft and a regenerative shaft. Each shaft has, in a flow direction, a preheating zone for preheating material, a burning zone for burning material, and a cooling zone for cooling material. A fuel inlet that admits fuel into each shaft is arranged above or inside the preheating zone.
The invention relates to a method for burning material, such as carbonate rock, in a parallel-flow regenerative shaft kiln (1) with two shafts (2) which are operated alternately as a burning shaft and a regenerative shaft and are connected to each other by means of a connecting channel (19), wherein the material flows through a material inlet (3) into a preheating zone (21) for preheating the material, a combustion zone (20) for burning the material and a cooling zone (22) for cooling the material in order to reach a material outlet (40), wherein a cooling gas is introduced into the cooling zone, wherein exhaust gas is discharged from one of the shafts (2) via an exhaust gas outlet (6), and wherein the exhaust gas, which has been discharged from the shaft (2) via the exhaust gas outlet (6), is at least partially introduced into at least one of the shafts (2). The invention also relates to a parallel-flow regenerative shaft kiln (1) for burning and cooling material, such as carbonate rock, said kiln having two shafts (2) which can be operated alternately as a burning shaft and a regenerative shaft and are connected to each other by means of a connecting channel (19), wherein each shaft (2) has in the flow direction of the material a preheating zone (21) for preheating the material, a combustion zone (20) for burning the material and a cooling zone (22) for cooling the material, wherein each shaft (2) has an exhaust gas outlet (6) for discharging exhaust gas from the shaft (2), wherein at least one exhaust gas outlet (6) is connected to a gas inlet (12, 15) for admitting gas into at least one shaft (2).
The invention relates to a method for burning material, such as carbonate rock, in a kiln comprising one or two shafts. The material flows through a material inlet (3) into a pre-heating zone (21) in order to pre-heat the material, a burning zone (20) in order to burn the material, a cooling zone (22) in order to cool the material, and to a material outlet (40), and a cooling gas is admitted into the cooling zone, wherein exhaust gas is discharged from a shaft (2) of the kiln via an exhaust gas outlet (6) arranged within or above the pre-heating zone (21), and the exhaust gas discharged out of the shaft (2) via the exhaust gas outlet (6) is at least partly introduced into at least one shaft (2) of the kiln. The exhaust gas is cooled in a cooling device (32) and is then heated to a temperature of maximally 200 °C, in particular 50 °C to 160 °C, preferably 70 °C to 120 °C, in a heating device (47). The invention also relates to a kiln (1) for burning and cooling material, such as carbonate rock, comprising one or two shafts (2).
The invention relates to a lime kiln system (4) comprising at least one shaft kiln (1) for burning and cooling material, such as carbonate rock. The lime kiln system (4) comprises two shafts (2a, b) and a channel (19) which extends between the two shafts (2a, b), and the shaft kiln (1) comprises precisely one of the shafts (2a, b). The shaft (2a, b) has a material inlet (3) for admitting material to be burned into the shaft (2a, b) and, in the flow direction of the material, a pre-heating zone (21) for preheating the material, a burning zone (20) for burning the material, a cooling zone (22) for cooling the material, and a material outlet (40) for discharging the material out of the shaft (2a, b), wherein the channel (19) has a closure device (18) for closing the channel (19) in terms of gas flow so that a gas flow between the two shafts (2a, b) through the channel (19) is prevented by the closure device (18). The invention also relates to a method for converting a parallel flow counter current regenerative shaft kiln comprising two shafts (2a, b), which are connected together in terms of gas flow via a channel (19), into a lime kiln system (4) comprising at least one shaft kiln (1), each of which has precisely one shaft (2a, b), said method at least having the step of: - closing the channel (19) in a gas-tight manner by means of a closure device (18).
The invention relates to a shaft furnace (1) for firing in particular carbonate-containing material, with a shaft (2) having, in the flow direction of the material, a material inlet (3), a preheating zone (21) for preheating the material, a firing zone (20) for firing the material, a cooling zone (22) for cooling the fired material, and a material outlet (40) for discharging the material from the shaft furnace (1), wherein the shaft furnace (1) has an exhaust gas outlet (19) for discharging exhaust gas from the preheating zone of the shaft (2), and wherein the exhaust gas outlet (19) is connected to the firing zone (20) for recirculation of the exhaust gas, wherein the shaft furnace (1) has a recycling device (54) for recycling recycled gas within the firing zone (20) and for creating a parallel-flow firing zone (24) within the firing zone.
A shaft furnace for firing carbonate-containing material may include, in a flow direction of the material, a preheating zone, a firing zone, a cooling zone, and a material outlet for discharging the material from the shaft furnace. Burner lances project into the firing zone. At least one burner lance has a first penetration depth into the firing zone and at least one further burner lance has a second penetration depth into the firing zone that is greater than the first penetration depth. A primary air conduit may be configured to convey combustion air and may be connected to at least one burner lance. An oxygen conduit for conveying oxygen into the firing zone may be arranged such that oxygen flows from the oxygen conduit at least one burner lance having the second penetration depth.
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts therefor, and auxiliary
installations for firing limestone and dolomite, namely
shaft furnaces, high-temperature furnaces for sintering, in
particular for sintering dolomite and magnesite, and for
manufacturing tabular alumina, and shelf furnaces for
calcining carbonates. Installation, maintenance and repair of industrial furnaces
and parts therefor, and auxiliary installations for firing
limestone and dolomite, namely shaft furnaces,
high-temperature furnaces for sintering dolomite and
magnesite and for manufacturing tabular alumina, and shelf
furnaces for calcining carbonates. Engineering, technical consultancy, planning, namely
construction drafting and technical project planning,
technical analysis and surveying, commissioning in
connection with and of industrial furnaces and parts
therefor, and auxiliary installations for firing limestone
and dolomite, namely shaft furnaces, high-temperature
furnaces for sintering dolomite and magnesite and for
manufacturing tabular alumina, and shelf furnaces for
calcining carbonates; quality monitoring of industrial
furnaces and parts therefor, and auxiliary installations for
firing limestone and dolomite, namely shaft furnaces,
high-temperature furnaces for sintering dolomite and
magnesite and for manufacturing tabular alumina, and shelf
furnaces for calcining carbonates.
14.
PARALLEL-FLOW REGENERATIVE SHAFT KILN AND METHOD FOR CALCINING CARBONATE ROCK
The present invention relates to a method for calcining and cooling material, such as carbonate rocks, in a parallel-flow regenerative shaft kiln (10) with two shafts (12), which are operated alternately as a calcining shaft and a regenerative shaft, wherein the material flows through a preheating zone (28), at least one calcining zone (36) and a cooling zone (42) to a material outlet (20, 76), wherein at least one stream of gas is compressed by means of a high-pressure fan (54a-c) and is introduced into the parallel-flow regenerative shaft kiln (10), wherein the high-pressure fan (54a-c) is designed as an axial fan or as a radial fan with an impeller which is flowed through axially or radially. The invention also relates to a parallel-flow regenerative shaft kiln (10) for calcining and cooling material, such as carbonate rocks, with two shafts (12), which can be operated alternately as a calcining shaft and a regenerative shaft, wherein each shaft (12) has, in the direction of flow of the material, a preheating zone (28) for preheating the material, a calcining zone (36) for calcining the material and a cooling zone (42) for cooling the material, wherein the parallel-flow regenerative shaft kiln (10) has at least one high-pressure fan (54a-c), which is designed and arranged for compressing a stream of gas introduced into the parallel-flow regenerative shaft kiln (10), wherein the high-pressure fan (54a-c) is designed as an axial fan or as a radial fan with an impeller which can be flowed through axially or radially.
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Industrial furnaces and parts therefor; auxiliary installations for firing limestone and dolomite, namely shaft furnaces; high-temperature furnaces for sintering, in particular for sintering dolomite and magnesite, and for manufacturing tabular alumina; shelf furnaces for calcining carbonates (1) Installation, maintenance and repair of industrial furnaces and parts therefor, auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates
(2) Engineering, technical consultancy, and planning, namely construction drafting and technical project planning in the nature of industrial design in the field of industrial furnaces, technical analysis of others to determine conformity with certification standards, technical surveying, engineering surveying, commissioning being the design and development of industrial furnaces and parts therefor, auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates; quality control testing services for agricultural machinery of industrial furnaces and parts therefor, auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and structural and replacement parts therefor, auxiliary installations for firing limestone and dolomite, namely, shaft furnaces, high-temperature furnaces for sintering, in particular for sintering dolomite and magnesite, for manufacturing tabular alumina, shelf furnaces for calcining carbonates Installation, maintenance and repair of industrial furnaces and parts therefor, auxiliary installations for firing limestone and dolomite, namely, shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates Engineering, technical consultancy, planning, namely, construction drafting and technical project planning, in the nature of industrial design, technical analysis of others to determine conformity with certification standards, surveying, commissioning being the design and development of industrial furnaces and parts therefor, auxiliary installations for firing limestone and dolomite, namely, shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates; quality monitoring, namely, quality controls for others of industrial furnaces and parts therefor, auxiliary installations for firing limestone and dolomite, namely, shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering, in particular for sintering dolomite and magnesite, and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates. Installation, maintenance and repair of industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates. Engineering, technical consultancy, planning, namely construction drafting and technical project planning, technical analysis and surveying, commissioning in connection with and of industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates; Quality monitoring of industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates.
18.
DEVICE AND METHOD FOR FIRING AND/OR CALCINING LUMPY GOODS
The invention relates to a method for firing material, in particular material containing carbonate, in a shaft furnace (1) having a shaft (2), wherein the material flows through a material inlet (3) into a preheating zone (21) for preheating the material, a firing zone (20) for firing the material and a cooling zone (22) for cooling the fired material to a material outlet (40), wherein cooling air is admitted into the cooling zone (22), wherein the waste gas is discharged from the shaft (2) via a waste gas outlet (19) and cooling air is discharged from the shaft (2) via a cooling gas discharge device (29) which extends from the cooling zone (22) into the firing zone (20) and from the firing zone (20) out of the shaft (2), wherein the waste gas discharged from the shaft (2) via the waste gas outlet (19) is guided at least partially into the firing zone (20).
The present invention relates to a shaft furnace (10) for burning material, in particular material containing carbonate, said furnace comprising a shaft (12) which has, in the direction of flow of the material: a material inlet (22); at least one burning zone (26) for burning the material having at least one fuel line (14, 16) for admitting fuel into the burning zone (26); a cooling zone (28) having a cooling air inlet (36) for cooling the burned material; and a material outlet (30) for discharging the material from the shaft furnace (10); wherein the shaft furnace (10) has an exhaust gas discharge line (24) for discharging exhaust gas from the shaft (12), and wherein the shaft furnace (10) has a cooling gas discharge device (38) for discharging cooling air from the shaft (12), said device extending from the cooling zone (28) into the burning zone (26) and from the burning zone (26) out of the shaft (12), wherein the cooling gas discharge device (38) is connected to a control element (40) for controlling the amount of gas flowing through the cooling gas discharge device (38).
The present invention relates to a method for burning and cooling material, such as carbonate rocks, in a parallel-flow regenerative shaft furnace (10) having two shafts (12, 14) which are operated alternately as a burning shaft and a regenerative shaft, wherein the material flows through a preheating zone (32, 34), at least one burning zone (50, 52), and a cooling zone (60, 62) to a material outlet (24, 26), wherein fuel is supplied in or above the preheating zone (32, 34) such that the fuel is heated in the preheating zone (32, 34) prior to entering the burning zone (50, 52). The invention also relates to a parallel-flow regenerative shaft furnace (10) for burning and cooling material, such as carbonate rocks, said furnace having two shafts (12, 14) which can be operated alternately as a burning shaft and as a regenerative shaft, wherein each shaft (12, 14) has, in the flow direction of the material, a preheating zone (32, 34) for preheating the material, a burning zone (50, 52) for burning the material, and a cooling zone (60, 62) for cooling the material, wherein a fuel inlet (20, 22) for admitting fuel into the associated shaft (12, 14) is located above or within the preheating zone (32, 34).
The present invention relates to a shaft furnace (10) for burning in particular carbonate-containing material, said shaft furnace having: in the flow direction of the material, a pre-heating zone (18), at least one combustion zone (20), a cooling zone (22), and a material discharge (26) for discharging the material from the shaft furnace (10); a plurality of burner lances (32, 34; 54) which project into the combustion zone (20), at least one burner lance (32) having a first penetration depth into the combustion zone (20), and at least one further burner lance (34) having a second penetration depth, which is greater than the first penetration depth, into the combustion zone (20); at least one primary air line (36, 38) for conducting combustion air, said primary air line being connected to at least one burner lance (32, 34; 54); wherein the shaft furnace (10) has an oxygen line (52) for conducting oxygen into the combustion zone (20), and the oxygen line (52) is arranged such that oxygen flows from the oxygen line (52) to at least one burner lance (34) of the second penetration depth.
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts therefor, and auxiliary
installations for firing limestone and dolomite, namely
shaft furnaces, high-temperature furnaces for sintering, in
particular for sintering dolomite and magnesite, and for
manufacturing tabular alumina, and shelf furnaces for
calcining carbonates. Installation, maintenance and repair of industrial furnaces
and parts therefor, and auxiliary installations for firing
limestone and dolomite, namely shaft furnaces,
high-temperature furnaces for sintering dolomite and
magnesite and for manufacturing tabular alumina, and shelf
furnaces for calcining carbonates. Engineering and technical consultancy regarding the
industrial furnaces and parts therefor, and auxiliary
installations for firing limestone and dolomite, namely
shaft furnaces, high-temperature furnaces for sintering
dolomite and magnesite and for manufacturing tabular
alumina, and shelf furnaces for calcining carbonates;
planning, namely construction drafting and technical project
planning, technical analysis and surveying in connection
with and of industrial furnaces and parts therefor, and
auxiliary installations for firing limestone and dolomite,
namely shaft furnaces, high-temperature furnaces for
sintering dolomite and magnesite and for manufacturing
tabular alumina, and shelf furnaces for calcining
carbonates; commissioning of industrial furnaces and parts
therefor, and auxiliary installations for firing limestone
and dolomite, namely shaft furnaces, high-temperature
furnaces for sintering dolomite and magnesite and for
manufacturing tabular alumina, and shelf furnaces for
calcining carbonates; quality monitoring of industrial
furnaces and parts therefor, and auxiliary installations for
firing limestone and dolomite, namely shaft furnaces,
high-temperature furnaces for sintering dolomite and
magnesite and for manufacturing tabular alumina, and shelf
furnaces for calcining carbonates.
A furnace may include at least two vertical shafts, each of which may have at an upper end thereof an inlet for material to be burnt and at a lower end thereof a burnt material outlet. The inlet and the outlet may be connected by a transfer channel. In each case, at least one main burner may be positioned above the transfer channel, and a cooling gas inlet may be positioned below the transfer channel. At least one additional burner may be positioned below the transfer channel in each of the shafts. Such a furnace can be operated such that the material to be burnt in the currently fired shaft is at least partially calcined in a main burning zone above the transfer channel, and then thermally aftertreated in an additional burning zone positioned between the transfer channel and the additional burner.
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely, shaft furnaces, high-temperature furnaces for sintering, in particular for sintering dolomite and magnesite, and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates Installation, maintenance and repair of industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely, shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates Engineering and technical consultancy regarding the industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely, shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates; planning, namely, construction drafting and technical project planning, technical analysis and surveying in connection with and of industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely, shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates; commissioning, namely, starting-up, examination, and validation on site to confirm functionality, of industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely, shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates; quality monitoring of industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely, shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering, in particular for sintering dolomite and magnesite, and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates. Installation, maintenance and repair of industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates. Engineering, technical consultancy, planning, namely construction drafting and technical project planning, technical analysis and surveying, commissioning in connection with and of industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates; Quality monitoring of industrial furnaces and parts therefor, and auxiliary installations for firing limestone and dolomite, namely shaft furnaces, high-temperature furnaces for sintering dolomite and magnesite and for manufacturing tabular alumina, and shelf furnaces for calcining carbonates.
26.
System having a furnace and method for operating such a system
A method of operating a plant having a furnace including at least two vertical shafts connected by an overflow duct, wherein at least one burner is arranged above the overflow duct in each case such that the burner gases therefrom flow downward in burning operation of the respective shaft. A cooling gas supply is provided beneath the overflow duct in each case such that, in combination with the operation of a burner in the burner-operated shaft, the burner gas flowing downward is deflected in the direction of the overflow duct by the cooling gas ascending in the burner-operated shaft, and a supply of cooling gas is adjusted such that the temperature of the burner charge through which the burner gas flows at least in the burner-operated shaft is kept above the deacidification temperature thereof.
The invention relates to a method for operating a system having a furnace (1) which comprises at least two vertical shafts (2) that are connected by means of an overflow duct (3), wherein, above the overflow duct (3), in each case at least one burner (7) is arranged such that the combustion gases thereof flow downwards in firing operation of the particular shaft (2), and wherein, beneath the overflow duct (3), in each case one cooling gas feed (6) is provided, such that, in combination with the operation of a burner (7) in the shaft in firing operation (2), the downwardly flowing combustion gas (3) is deflected in the direction of the overflow duct (3) by the cooling gas rising in the shaft (2) in firing operation, characterized in that a feed of cooling gas is set such that the temperature of the firing material through which combustion gas flows at least in the shaft (2) in firing operation is kept above the deacidification temperature of said firing material.
The invention relates to a furnace comprising at least two vertical shafts (1), each of which has a supply (3) of material to be heated at the upper end thereof and a heated material outlet (4) at the lower end thereof, and which are connected by means of an overflow channel (2), wherein a respective at least one main burner (6) is provided above the overflow channel (2) and a respective cooling gas supply (5) is provided below the overflow channel (2), characterised in that a respective at least one additional burner (7) is arranged below the overflow channel (2) in the shafts (1). A furnace of this type can be operated such that the material to be heated in the currently burner-operated shaft (1) is at least partially calcined in a main burner zone (9) arranged above the overflow channel (2), and subsequently the material to be heated undergoes a thermal post-treatment in an additional burner zone arranged between the overflow channel (2) and the respective additional burner (7), and is also in particular subsequently calcined, wherein a sintering can also optionally be provided.
Burning and cooling carbonate rock in cocurrent regenerative lime kilns may involve alternately operating two shafts such that a first shaft operates as a burning shaft and a second shaft operates as a regenerative shaft during a first period and such that the first shaft operates as the regenerative shaft and the second shaft operates as the burning shaft during a second period. Carbonate rock introduced to upper regions of the shafts may be preheated and calcined. The carbonate rock may then be cooled in lower regions of the shafts before being discharged through discharge devices. The cooling of the carbonate rock may comprise introducing cooling air into the shafts partially through central displacement bodies in the shafts and partially through the discharge devices. Amounts of air entering through the central displacement bodies compared to the discharge devices may vary widely from the burning shaft to the regenerative shaft.
The process according to the invention for burning and cooling of carbonate rock takes place in a parallel-flow regenerative lime kiln with two shafts which are operated in alternation as burning shaft and as regenerative shaft, where a. the carbonate rock is added in an upper region designed as preheat and burning zone of each shaft and is preheated and calcined in that region, b. the calcined carbonate rock is then cooled in a lower region designed as cooling zone and having a central deflector in each shaft, c. the cooled calcined carbonate rock is then discharged by way of discharge equipment allocated to each shaft, and where d. cooling air is introduced into the cooling zone to cool the calcined carbonate rock, and is introduced to some extent in the region of the discharge equipment and to some extent by way of the deflector , e. from 90 to 100% of the cooling air to be introduced into the burning shaft is introduced by way of the deflector, at most 10% being introduced in the region of the discharge device, while from 90 to 100% of the cooling air to be introduced into the regeneration shaft is introduced in the region of the discharge equipment, at most 10% being introduced by way of the deflector.
The invention relates to the method for burning lump material is in at least one shaft comprising a pre-heating zone, a burning zone and a cooling zone, wherein coal having a swelling index > 1 is supplied together with a transport medium via burner lances which have burner tips, via which the coal exits into the shaft together with the transport medium, wherein the temperature of the coal in the burner lances is kept below a temperature value at which melt phases of the coal form. Here, use is made of a transport medium for transporting the coal which transport medium forms a low-oxygen atmosphere in the shaft in the region immediately adjoining the burner tips, in order to delay the ignition of the coal following the exiting from the burner lance.
The invention relates to a method for burning a pelletized good in at least one shaft comprising a preheating zone, a burning zone and a cooling zone, wherein coal having a swelling index of >1 is supplied via burner lances and the temperature of the coal in the burner lances is held below a temperature value at which melting phases of the coal used form.
at least one parameter of the hot gases which is characteristic of the formation of the flame length being established by means of direct or indirect measurement in the region of the overflow channel and the ratio of fuel to combustion air being adjusted in accordance with this parameter in order to adjust a predetermined flame length.
The invention relates to a device for combusting and/or calcining fragmented material, substantially comprising at least one combustion shaft and at least one cooling shaft, wherein the at least one combustion shaft comprises at least one fuel inlet and at least one oxidation agent inlet in a lower region and a material feed point and an exhaust gas extraction duct in the upper region and wherein the cooling shaft connected to the combustion shaft comprises a material extraction point and a cooling gas supply in the lower region and a cooling gas extraction duct in the upper region. The device is further characterised in that the cross-section of the combustion shaft, at least in the connection region to the cooling shaft, is designed to be smaller than the cross-section of the cooling shaft and the combustion shaft extends with the lower end thereof into the cooling shaft, wherein the combustion shaft opens into the cooling shaft such that in operation a cone of the fragmented material to be treated develops in the cooling shaft and a material-free annular space develops above said cone of material, wherein the cooling gas extraction duct is connected to the developing annular space and a control member and a control system connected to the control member are provided for influencing the cooling gas extraction via the cooling gas extraction duct.
The method according to the invention for operating a PFR lime kiln comprising at least two shafts, which each have a preheating zone, a firing zone and a cooling zone, and a cross-over channel connecting the two shafts, consists substantially of the following method steps: both shafts are operated alternately as a burning shaft and an exhaust gas shaft, combustion air and fuel are fed to the burning shaft, wherein a corresponding flame length is formed and the hot gases developing in the burning shaft reach the exhaust gas shaft via the cross-over channel, wherein at least one parameter of the hot gases characteristic of the formation of the flame length is determined by a direct or indirect measurement in the region of the cross-over channel, and the ratio of fuel to combustion air is controlled depending on said parameter in order to set a predetermined flame length.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Machines and machine parts for the cement, lime, gypsum,
ceramic, refractory, iron and steel and chemical industries,
for mining and the power industry, particularly catalysts,
mills, crushers, separators, precipitators, devices and
equipment for mixing, homogenizing, storing, dosaging,
sorting, fragmenting, conveying, packing and loading of
solid materials. Electric and electronic devices and equipment for measuring,
regulating, controlling, monitoring, indicating and
registering for the machines outlined in class 7. Furnaces, calciners, preheaters, coolers for the machines
outlined in class 7.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Machines and machine parts for the cement, [ lime, gypsum, ceramic, refractory, iron and steel ] and chemical industries, namely, exhaust gas combustion treatment apparatus for engines powered by diesel, gas, coal and/or waste, exhaust gas catalytic converters and exhaust gas purifying apparatus for engines powered by diesel, gas, coal and/or waste for use on factory and plant flue gas systems, for use on flue gas cleaning systems for cleaning factory and plant flues, and parts therefor; * all aforementioned machines and parts of machines as part for exhaust systems, exhaust gas treatment systems and their parts, as far as included in this class, namely, exhaust gas combustion treatment apparatus, exhaust gas catalytic converters and exhaust gas purifying apparatus, for catalytic factory and plant flue gas systems, catalytic flue gas cleaning systems and parts therefore * Electric and electronic devices and parts therefor, namely, measuring apparatus for taking measurements as to the amount of exhaust gases or purity of exhaust gases in the factory flues, plant flues, and machines; electric regulators for factory and plant flues and machines; apparatus and instruments for controlling electricity for factory flues, plant flues and machines, namely, electric resistors, capacitors, voltage meters, current sensors, transformers, and diodes; electricity routers for managing and optimizing energy loads within the machines; electricity conduits, electricity limiters, electricity adapters and electrical wires; electric monitors for factory flues, plant flues and machines; indicating and recording apparatus for factory flues, plant flues and machines, namely, sensors and electronic data recorders for sensing and recording the amount of exhaust gases in the factory flues, plant flues and machines, all for the cement, [ lime, gypsum, ceramic, refractory, iron and steel and chemical ] industries; * all aforementioned machines and parts of machines as part for exhaust systems, exhaust gas treatment systems and their parts, as far as included in this class, namely, measuring apparatus, electric regulating apparatus, apparatus and instruments for controlling electricity, electric monitoring apparatus, indicating and recording apparatus for amounts of gas, all for the systems outlined in class 7 * Furnaces, calciners, preheaters and coolers, all for use with factory and plant flues and machines therefor, for the cement, [ lime, gypsum, ceramic, refractory, iron and steel and ] chemical industries
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts thereof for the calcination of
limestone and dolomite, particularly lime kilns,
high-temperature furnaces for sintering, particularly for
dolomite and magnesite and for producing tabular aluminium,
as well as multiple-hearth furnaces. Installation, start-up, surveillance, maintenance and repair
of the goods listed above, technical consulting in the
assembly, start-up, surveillance, maintenance and repair of
the goods listed above. Delivery of industrial furnaces and parts thereof for the
calcination of limestone and dolomite, particularly lime
kilns, high-temperature furnaces for sintering, particularly
for dolomite and magnesite and for producing tabular
aluminium, as well as multiple-hearth furnaces. Technical consulting in the calcination of limestone and
dolomite, in the sintering of dolomite, magnesite and
tabular aluminium and in the calcination of various
carbonates. Engineering, technical consulting, planning, particularly
construction drafting and technical project studies,
technical analysis and expertises.
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts thereof for the [ heat treatment ] * calcination * of limestone and dolomite, namely, lime kilns, high-temperature furnaces for sintering, particularly for dolomite and magnesium and for producing tabular aluminum, as well as multiple-hearth furnaces Furnace [ installation, operation, ] monitoring, [ maintenance and repair ] ; technical consultation in the field of furnace assembly, installation, maintenance, monitoring and repair [ Delivery of industrial furnaces and parts thereof for the [ heat treatment ] * calcinatin * of limestone and dolomite, namely, lime kilns, high-temperature furnaces for sintering, particularly for dolomite and magnesium and for producing tabular aluminum, as well as multiple-hearth furnaces ] Technical consulting in the [ heat treatment ] * calcination * of limestone and dolomite, in the sintering of dolomite, magnesium and tabular aluminum and in the calcination of various carbonates Engineering, technical consulting in the field of industrial furnace operation, planning, namely, industrial furnace operation, construction drafting, technical project studies and analysis in the field of industrial furnace operation
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts thereof for the calcination of
limestone and dolomite, particularly lime kilns,
high-temperature furnaces for sintering, particularly for
dolomite and magnesite and for producing tabular aluminium,
as well as multiple-hearth furnaces. Installation, start-up, surveillance, maintenance and repair
of the goods listed above, technical consulting in the
assembly, start-up, surveillance, maintenance and repair of
the goods listed above. Delivery of industrial furnaces and parts thereof for the
calcination of limestone and dolomite, particularly lime
kilns, high-temperature furnaces for sintering, particularly
for dolomite and magnesite and for producing tabular
aluminium, as well as multiple-hearth furnaces. Technical consulting in the calcination of limestone and
dolomite, in the sintering of dolomite, magnesite and
tabular aluminium and in the calcination of various
carbonates. Engineering, technical consulting, planning, particularly
construction drafting and technical project studies,
technical analysis and expertises.
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts thereof as well as accessory
equipment for the metal industry, in particular the steel,
aluminium and copper industry, in particular for heating and
heat treatment, in particular melting furnaces, hearth-type
melting furnaces, batch furnaces, continuous furnaces,
tilting furnaces, rotary furnaces, shaft furnaces, hearth
shaft furnaces; water cooling devices, in particular water
quenching devices; excluding industrial furnaces and parts
thereof as well as accessory equipment for the calcination
of limestone and dolomite. Assembly, installation, maintenance and repair of the
aforementioned goods. Delivery of the aforementioned goods. Engineering, technical consultancy, planning, in particular
construction drafting and technical project studies;
technical analysis and expertises, customer service in
connection with the aforementioned goods; inspection.
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts thereof as well as accessory
equipment for the metal industry, in particular the steel,
aluminium and copper industry, in particular for heating and
heat treatment, in particular melting furnaces, hearth-type
melting furnaces, batch furnaces, continuous furnaces,
tilting furnaces, rotary furnaces, shaft furnaces, hearth
shaft furnaces; water cooling devices, in particular water
quenching devices; excluding industrial furnaces and parts
thereof as well as accessory equipment for the calcination
of limestone and dolomite. Assembly, installation, maintenance and repair of the
aforementioned goods. Delivery of the aforementioned goods. Engineering, technical consultancy, planning, in particular
construction drafting and technical project studies;
technical analysis and expertises, customer service in
connection with the aforementioned goods; inspection.
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnaces and parts thereof as well as accessory
equipment for the metal industry, in particular the steel,
aluminium and copper industry, in particular for heating and
heat treatment, in particular melting furnaces, hearth-type
melting furnaces, batch furnaces, continuous furnaces,
tilting furnaces, rotary furnaces, shaft furnaces, hearth
shaft furnaces; water cooling devices, in particular water
quenching devices; excluding industrial furnaces and parts
thereof as well as accessory equipment for the calcination
of limestone and dolomite. Assembly, installation, maintenance and repair of the
aforementioned goods. Delivery of the aforementioned goods. Engineering, technical consultancy, planning, in particular
construction drafting and technical project studies;
technical analysis and expertises, customer service in
connection with the aforementioned goods; inspection.
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Furnaces and parts therefor, and accessory installations for firing limestone and dolomite, in particular shaft furnaces, high-temperature furnaces for sintering, in particular for sintering dolomite and magnesite and for producing tabular alumina, and double-deck furnaces for calcining various carbonates. Installation, maintenance and repair of furnaces and parts therefor, and accessory installations for firing limestone and dolomite, in particular shaft furnaces, high-temperature furnaces for sintering, in particular for sintering dolomite and magnesite and for producing tabular alumina, and double-deck furnaces for calcining various carbonates. Supply furnaces and parts therefor, and accessory installations for firing limestone and dolomite, in particular shaft furnaces, high-temperature furnaces for sintering, in particular for sintering dolomite and magnesite and for producing tabular alumina, and double-deck furnaces for calcining various carbonates. Engineering, technical consultancy, planning, in particular construction drafting and technical project studies, providing technical analysis and expertise, commissioning of, and in connection with, furnaces and parts therefor, and accessory installations for firing limestone and dolomite, in particular shaft furnaces, high-temperature furnaces for sintering, in particular for sintering dolomite and magnesite and for producing tabular alumina, and double-deck furnaces for calcining various carbonates; quality control of furnaces and parts therefor, and accessory installations for firing limestone and dolomite, in particular shaft furnaces, high-temperature furnaces for sintering, in particular for sintering dolomite and magnesite and for producing tabular alumina, and double-deck furnaces for calcining various carbonates.
