A coupling element (10) for coupling a screening member (12) releasably to a support member (13) in a screening deck (60) used in a material vibrational screening apparatus, the coupling element (10) having a first part (17) with a first zone (18) configured to engage with the screening member (12) with magnetic attraction forces acting to releasably hold the screening member (12) to the coupling element (10), the first part (17) having an oppositely facing second zone (19) configured to engage with the support member (13) with magnetic attraction forces releasably holding the coupling element (10) to the support member (13), the coupling element (10) further having a second part (21, 41) connected to and extending axially downwardly from the first part (17) to engage with the support member (13) to prevent relative movement laterally to the axial direction but not inhibit relative moment in the axial direction.
Panel member assembly (10, 11, 60, 80, 100, 130) for use as a screening panel in a vibratory screening machine for treatment of mining materials either as an impact panel member or as a sieving panel member. The assembly has an engagement face (12, 105) for engagement during use with treatment material. The assembly also has a support structure (23, 102, 131) with a first side (26) directed towards the engagement face. The first side defines a plurality of spaced receiving zones (29, 129, 138) each being configured to locate an individual hard wear resistant insert (21, 101, 136, 137). The assembly also has a plurality of the inserts respectively located in a receiving zone with part of the inserts extending towards the engagement face. The support structure and located inserts are retained in a moulded cover material (24).
B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
3.
Method of Estimating Cumulative Damage and Fatigue Strength of a Vibrating Machine
A method of estimating cumulative damage of a vibrating machine with a base and a movable part movable relative to the base including the steps of: providing a computational model which estimates mechanical stress on a portion of the vibrating machine which uses the machine mass, and weight mass and load distribution of feed material, and acceleration to determine the estimated mechanical stress; estimating weight mass and load distribution of feed material; estimating measuring acceleration; providing the mass of the movable part, estimated weight mass and load distribution on the moving part and the estimated acceleration of the moveable part to the model obtaining estimated mechanical stress of the portion of the vibrating machine; recording the estimated mechanical stress of the portion of the vibrating machine over time; and estimating cumulative damage to the portion of the vibrating machine based on two or more successive recorded mechanical stress estimations.
The specification discloses vibration exciter apparatus (40) having an exciter housing (50), at least one bearing means (108) supporting at least one driven shaft (68, 69) carrying eccentric mass means (107), the exciter housing (50) having an array of bore passages (91) extending from an upper wall (51) of the exciter housing (50) to a lower wall (53) of the exciter housing (50), and amounting structure plate (60) securable to mineral processing or handling equipment intended to be vibrated by said exciter apparatus (40), said mounting structure plate (60) having an array of fastener receiving zones (98) whereby elongated fastener means (99) can pass through the bore passages (91) from the upper wall (51) to be engaged in the fastener receiving zones (98).
B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
H02K 5/16 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
H05K 7/14 - Mounting supporting structure in casing or on frame or rack
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
The specification discloses vibration exciter apparatus (40) having an exciter housing (50), two bearing means (108) each supporting a driven shaft (68, 69) carrying eccentric mass means (107), the driven shafts (68, 69) carrying intermeshing gears (80, 81), the exciter housing having an array of bore passages (91) extending from an upper wall (51) of the exciter housing (50) to a lower wall (53) of the exciter housing (50), and a mounting structure plate (60) securable to mineral processing or handling equipment intended to be vibrated by said exciter apparatus (40), said separated lubrication liquid sumps (70, 71, 101) for each of the bearing means (108) and the intermeshing gears (80, 81), said exciter housing further having said mounting structure plate (60) having an array of fastener receiving zones (98) whereby elongated fastener means (99) can pass through the bore passages (91) from the upper wall (51) to be engaged in the fastener receiving zones (98).
B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
F16H 57/04 - Features relating to lubrication or cooling
B65G 27/32 - Applications of devices for generating or transmitting jigging movements with means for controlling direction, frequency, or amplitude of vibration or shaking movement
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 7/065 - Electromechanical oscillatorsVibrating magnetic drives
H02K 7/20 - Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
H02K 9/08 - Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
The specification discloses exciter apparatus (40) having an exciter housing (50), at least one bearing means (108) supporting at least one driven shaft (68, 69) carrying eccentric mass means (107), the exciter housing having an array of bore passages (91) extending from an upper wall (51) of the exciter housing (50) to a lower wall (53) of the exciter housing (50), and amounting structure plate (60) securable to mineral processing or handling equipment intended to be vibrated by said exciter apparatus (40), said mounting structure plate (60) having an array of fastener receiving zones (98) whereby elongated fastener means (99) can pass through the bore passages (91) from the upper wall (51) to be engaged in the fastener receiving zones (98), said exciter apparatus further including a pair of bearing members (109, 110) supporting a pair of driven shafts (68, 69) having intermeshing gears, each of the bearing members (109, 110) and intermeshing gears having individual liquid lubrication sump zones (100, 103, 104) separate from one another, and cooling means (140) for cooling moving parts of the exciter apparatus (40).
B65G 27/32 - Applications of devices for generating or transmitting jigging movements with means for controlling direction, frequency, or amplitude of vibration or shaking movement
B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 7/065 - Electromechanical oscillatorsVibrating magnetic drives
H02K 7/20 - Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
H02K 9/08 - Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
7.
FASTENER ASSEMBLY FOR USE IN CORROSIVE ENVIRONMENTS
The specification discloses a fastener assembly (10) having a bolt stud or pin (13) with a threaded section (15) at one end, a nut member (11) threadable onto the threaded section (15), the fastener assembly (10) further including a cup shaped cover member (30) with a continuous wall structure having an internal surface defining an internal space (42), the continuous wall structure having an open mouth region (33) with a seal zone (35) and a continuous seal member (32), the internal surface (43, 44) of the cover member (30) having first snap-in formations (45) cooperating with second snap-in formations (48) on an outer surface region of the threaded nut member (11) to prevent disengagement of the cover member (30) from the nut member (11) and to press said continuous seal member (32), in use, against a sealing region around said nut member (11) to thereby prevent ingress of contaminants and corrosive materials into the internal space (42).
The specification discloses robotic apparatus for extraction of a worn treatment panel module from a treatment deck of ore material treatment apparatus without the need for work personnel entering the treatment apparatus, the robotic apparatus including a robotic support structure carried on transport means whereby the robotic support structure follows a course on the treatment deck, the robotic apparatus further including a treatment panel module handling mechanism connected to the robotic support structure for movement along a defined path of movement and first drive means for selectably moving the treatment panel module handling mechanism along the defined path of movement, the treatment panel module handling mechanism still further including tool means adapted to mount tool means cooperable at least with a treatment panel module intended to be removed from a selected treatment deck, the tool means being able to engage a panel module to lift it out of the treatment deck.
The present specification discloses a mobile scanning device (30) for scanning wear conditions of treatment panel modules (13) of a treatment deck (14) in vibratory treatment apparatus (10), the mobile scanning device (30) including a support structure (11), steerable transport means (12) carrying the support structure (11) along a predefined course or a selectable steered course on or over the treatment deck (14), the support structure (11) carrying power means (16), drive means (17) powered by the power means (16) to drive the steerable transport means (12) scanning means (18) to scan a lower zone (42) below the support structure (11) to establish scanned information, the scanned information being reflective of at least wear levels occurring on the upper surfaces (31) of the treatment panel modules (13), and transmission means (23) arranged to transmit the scanned information to remote control means (20, 21) external of the treatment deck (14).
The specification discloses a vibratory screening apparatus for screening mined ore materials utilizing elliptical vibration, the apparatus having a static section, a dynamic section including a screening deck, the apparatus having three pairs of rotary motion exciter cells positioned with a first group of three said rotary motion exciter cells on a first side of the dynamic section and a second group of three said rotary motion exciter cells on a second side of the dynamic section, each of the cells in said first group forming a pair with a respective one of the cells in the second group, the apparatus further including drive means for rotationally driving the cells, and mechanical synchronisation means linking rotation of a first said pair to a second said pair of the cells whereby, in use, rotation of said pairs of cells are mechanically synchronised.
The invention relates to a linear displacement transducer (LDT) (1). The LDT (1) includes a first end (2) and a second end (3) with attachment means for attaching the ends to two points. The LDT includes a linear motion guide (6) between the ends which includes a first part (7) which is guided to move linearly relative to a second part (8) and measurement means for measuring linear displacement between the first and second parts of the linear motion guide. The ends are attached to the parts of the linear motion guide (6) through intermediate flexible members (16 and 17) which have relatively lower bending stiffness than the linear motion guide such that lateral relative movement between the first (2) and second (3) ends induces greater flexure in the intermediate members (16 and 17) than in the linear motion guide (6).
G01B 5/14 - Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
G01B 7/14 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
12.
METHOD OF ESTIMATING CUMULATIVE DAMAGE AND FATIGUE STRENGTH OF A VIBRATING MACHINE
A method of estimating cumulative damage of a vibrating machine with a base and a movable part movable relative to the base including the steps of: providing a computational model which estimates mechanical stress on a portion of the vibrating machine which uses the machine mass, and weight mass and load distribution of feed material, and acceleration to determine the estimated mechanical stress; estimating weight mass and load distribution of feed material; estimating measuring acceleration; providing the mass of the movable part, estimated weight mass and load distribution on the moving part and the estimated acceleration of the moveable part to the model obtaining estimated mechanical stress of the portion of the vibrating machine; recording the estimated mechanical stress of the portion of the vibrating machine over time; and estimating cumulative damage to the portion of the vibrating machine based on two or more successive recorded mechanical stress estimations.
The specification discloses an isolation gate valve (10) for controlling flow of a particulate type material of a dry or semi dry nature including ore and coal, the gate valve (10) having a support frame (11), at least one slidable blade member (20, 21) movably mounted relative to said support frame (11) to selectably open or close a material flow opening (12) defined by said support frame (11), one or more actuators (22, 23) provided to drive the slidable blade member or members (20, 21) between open or closed positions, the or each said slidable blade member (20, 21) having a forward leading edge region (27, 28) adapted, in use, to transversely extend across the material flow opening (12).
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
F16K 25/00 - Details relating to contact between valve members and seats
Panel member assembly (10, 11, 60, 80, 100, 130) for use as a screening panel in a vibratory screening machine for treatment of mining materials either as an impact panel member or as a sieving panel member. The assembly has an engagement face (12, 105) for engagement during use with treatment material. The assembly also has a support structure (23, 102, 131) with a first side (26) directed towards the engagement face. The first side defines a plurality of spaced receiving zones (29, 129, 138) each being configured to locate an individual hard wear resistant insert (21, 101, 136, 137). The assembly also has a plurality of the inserts respectively located in a receiving zone with part of the inserts extending towards the engagement face. The support structure and located inserts are retained in a moulded cover material (24).
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
The invention relates to screening panels such as a mineral screening panel, and related screening systems. In one aspect, the invention provides a panel suitable for engaging a supporting frame in abutment with a number of adjacent screening panels including: a screening surface with peripheral sides and screening apertures between the peripheral sides; each peripheral side having a plurality of engaging protrusions extending from the peripheral side in a direction transverse to the screening surface for engaging the supporting frame to secure the screening panel to the supporting frame; wherein the protrusions are shaped and sized to engage complementary formations on the supporting frame in a snap-fit configuration. The invention also relates to a screening system including a plurality of screening panels and a supporting frame.
To address the problem of safety and ease of installation of mining screen panels it is proposed to provide a system where panels can be placed in position and then locked using a mechanical or electrical actuation. The lugs of the screen panels are locked an actuatable mechanism, that allows the panels to be placed and then secured by actuation. The actuation mechanism is preferably enclosed in a beam below the panel.
A modular panel for a screening deck which includes an impact surface of an alumina ceramic which is bonded to a metal support. Preferably the alumina ceramic tiles are bonded with adhesive to a steel base. The adhesive may be any suitable adhesive such as epoxy based resins. In order to achieve a robust bond of the alumina ceramic tile to the steel substrate the panel is subjected to a vacuum and then the adhesive is allowed to cure by heating or other suitable method. The panels of this invention are particularly suited for the feed zone of the screen deck where the panels may be blank and not have apertures.
A mining screening panel which has a screening surface consisting of spaced stainless steel profiled wires supported on transversely extending spaced rods or bars in which the cross sectional shape of the profiled wires is a vertical truncated diamond. The top portion is an inverted wedge with a flat top with depending diverging sides and the bottom portion is a wedge with dependent converging sides with a flat or convex bottom. The widest portion of the vertical diamond constitutes the notional screening surface and defines the size of the screening aperture. The raised top above the notional screening surface provides the wire a wear surface above the aperture and this provides the wedge wire and aperture with a longer wear life, thus reducing change out periods and reduction in premature failure of wedge wire, which in turn reduces operating costs.
The present invention relates generally to a method of predicting fluidisation in a bulk material involving the steps of: 1. measuring permeability in the bulk material; 2. detecting one or more trigger events likely to result in fluidisation of the bulk material; and 3. predicting the likelihood of the onset of fluidisation in the bulk material depending on the measured permeability and the detected trigger events.
The present invention relates broadly to a modular exciter beam (10) fitted to a vibratory screen assembly (12). The exciter beam (10) spans between opposing side walls (14A) and (14B) of the screen assembly (12). The modular exciter beam (10) provides mounting for a pair of exciter mechanisms (16A) and (16B) which are located substantially inside the side walls (14A) and (14B) of the screen assembly (12).
A screening deck is provided which includes a plurality of screening panels to form the screening surface each panel having a thickness and edge faces on the periphery of the panels; a support frame for the screening panels; fixing means to secure the panels to the support frame; wherein the fixing means consists of recesses in the edge faces and a fixing strip having complementary protrusions to mesh with said recesses on the edge faces, the fixing strip being integral with or securable to the support frame. The arrangement of the recesses and protrusions increases the open area of the panels. The recesses may alternately be in the fixing strip and the protrusions on the edge faces. Additionally a locking strip may be used having complementary recesses or protrusions in addition to the panels and fixing strips to prevent ingress of fines at the panel junctions. The protrusions or recesses on the panel generally function as a snap fit interlock characterised by a high lead in angle to provide an ease of assembly and a steeper lead out angle in combination with an undercut to realize a defined higher panel dislodgement force.
B07B 1/30 - Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting, or wobbling screens jigging or moving to-and-fro in or approximately in the direction of conveyance
B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens
A system for monitoring screening facilities which includes screening panels and components of the screen deck incorporating wirelessly readable identification tags; a computer database containing information relating to the screen deck components and their associated tags; a wireless tag detection station for regularly reading the conveyed material to detect tags; a computer program for matching the detected information with said data base and means for communicating a warning that a screen deck component has been dislodged.
A headed retention pin is proposed that seats into recesses in the lower adjoining edges of two screening panels. The heads are tapered vertical from the upper surface of the head to the lower edge of the panels and tapered horizontally from the outer edge of the heads toward the centre line of the head which lies on the join line of the two adjacent panels. These appear to be an X in plan view. The advantage is that as well as locating the panels correctly and retaining the panels on the frame they also pull the adjacent panels together to reduce ingress of fines between the panels.
B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens
F16B 43/02 - Washers or equivalent devicesOther devices for supporting bolt-heads or nuts with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
F16B 27/00 - Bolts, screws, or nuts formed in integral series but easily separable, particularly for use in automatic machines
F16B 23/00 - Specially-shaped heads of bolts or screws for rotations by a tool
A modular screening panel in which the apertures in the screening surface extend through the surface and the shape of the aperture parallel the plane of the panel surface varies with the depth of the aperture so that as the surface wears the visible shape of the aperture changes. The apertures can be any convenient shape at the surface but at the depth which means the worn panel needs replacing the shape is distinctly different to the shape of the apertures in a new or partly worn panel.
The present invention relates generally to a vibratory centrifuge (10) comprising a shaft assembly (12) mounted to a basket assembly (14) which is rotated by a drive mechanism (16). The shaft assembly (12) includes a shaft (38) rotationally mounted in a shaft housing (40) and adapted at opposing ends to connect to the basket assembly (14) and the drive mechanism (16), respectively. The shaft assembly (12) also includes a pair of preloaded thrust bearings (42A and 42B) mounted to the shaft (38) and designed to handle axial vibratory loads in the shaft (38). One of the preloaded thrust bearings (42A) is mounted to the shaft housing (40) and thus designed to also handle radial loads. The shaft assembly (12) further comprises biasing means in the form of disc springs (46) mounted between the pair of preloaded bearings (42A/B) to maintain a predetermined constant static preload under the axial vibratory loads.
B04B 3/06 - Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneously sifting or filtering discharging solid particles by vibrating the bowl
B04B 9/00 - Drives specially designed for centrifugesArrangement or disposition of transmission gearingSuspending or balancing rotary bowls
The present invention relates generally to a vibratory centrifuge (10) comprising a shaft assembly (12) connected at opposing ends to a drive mechanism (14) and a basket assembly (16), respectively. The vibratory centrifuge (10) also comprises a main housing (18) mounted to a base frame (20), and chute (22) connected to the main housing (18) to provide a solid/liquid feed to the basket assembly (16). The centrifuge (10) also comprises a mounting arrangement for the shaft assembly (12) including a combination of one or more slide blocks (34A) and (34B) and a tapered securement ring (32). The slide blocks (34A/B) are mounted to the shaft assembly (12) to permit sliding movement of the shaft assembly (12) within the main housing (18). The tapered securement ring (32) is one of three tapered segment rings located circumferentially around the shaft assembly (12). The tapered ring segments (32A/B) are located at respective ends of the shaft assembly (12) so as to clamp the shaft assembly (12) within the main housing (18).
B04B 3/06 - Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneously sifting or filtering discharging solid particles by vibrating the bowl
A vibratory screening apparatus for separating granulated material, the apparatus comprising: an inlet for receiving granulated material; a plurality of sampling outlets for sampling at least part of the granulated material; a first screen assembly for retaining a first portion of the granulated material for discharge at a first one of the plurality of sampling outlets and allowing a second portion of the granulated material to pass through the first screen assembly, wherein at least part of the second portion is discharged at a second one of the plurality of sampling outlets; and an actuator assembly adapted to actuate at an adjustable angle of actuation for causing vibration of the first screen assembly to facilitate passing of the second portion of the granulated material through the first screen assembly.
B07B 1/30 - Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting, or wobbling screens jigging or moving to-and-fro in or approximately in the direction of conveyance
Panel member assembly (10, 11, 60, 80, 100, 130) for use as a screening panel in a vibratory screening machine for treatment of mining materials either as an impact panel member or as a sieving panel member. The assembly has an engagement face (12, 105) for engagement during use with treatment material. The assembly also has a support structure (23, 102, 131) with a first side (26) directed towards the engagement face. The first side defines a plurality of spaced receiving zones (29, 129, 138) each being configured to locate an individual hard wear resistant insert (21, 101, 136, 137). The assembly also has a plurality of the inserts respectively located in a receiving zone with part of the inserts extending towards the engagement face. The support structure and located inserts are retained in a moulded cover material (24).
B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29C 45/16 - Making multilayered or multicoloured articles
29.
METHOD OF ESTIMATING CUMULATIVE DAMAGE AND FATIGUE STRENGTH OF A VIBRATING MACHINE
A method of estimating cumulative damage of a vibrating machine with a base and a movable part movable relative to the base including the steps of: providing a computational model which estimates mechanical stress on a portion of the vibrating machine which uses the machine mass, and weight mass and load distribution of feed material, and acceleration to determine the estimated mechanical stress; estimating weight mass and load distribution of feed material; estimating measuring acceleration; providing the mass of the movable part, estimated weight mass and load distribution on the moving part and the estimated acceleration of the moveable part to the model obtaining estimated mechanical stress of the portion of the vibrating machine; recording the estimated mechanical stress of the portion of the vibrating machine over time; and estimating cumulative damage to the portion of the vibrating machine based on two or more successive recorded mechanical stress estimations.
A headed retention pin is proposed that seats into recesses in the lower adjoining edges of two screening panels. The heads are tapered vertical from the upper surface of the head to the lower edge of the panels and tapered horizontally from the outer edge of the heads toward the centre line of the head which lies on the join line of the two adjacent panels. These appear to be an X in plan view. The advantage is that as well as locating the panels correctly and retaining the panels on the frame they also pull the adjacent panels together to reduce ingress of fines between the panels.
B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens
F16B 23/00 - Specially-shaped heads of bolts or screws for rotations by a tool
F16B 27/00 - Bolts, screws, or nuts formed in integral series but easily separable, particularly for use in automatic machines
F16B 43/02 - Washers or equivalent devicesOther devices for supporting bolt-heads or nuts with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
patents
