MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Gerl, Stefan
Abstract
23132123P a1a1 P b1b1 P a1a1 P b1b1 1P a2a2 P b2b2 P a2a2 P a1a1 P b2b2 P b1b1 2221akbkbk of the binders into the container is carried out, wherein in the first repetition k=3 and after each repetition k is increased by 1, and (I) and (II).
B01F 23/53 - Mixing liquids with solids using driven stirrers
B01F 23/57 - Mixing high-viscosity liquids with solids
B01F 29/81 - Mixers with rotating receptacles rotating about a substantially vertical axis with stationary mixing elements
B01F 29/83 - Mixers with rotating receptacles rotating about a substantially vertical axis with rotary paddles or arms, e.g. movable out of the receptacle
B01F 35/222 - Control or regulation of the operation of the driving system, e.g. torque, speed or power of motorsControl or regulation of the position of mixing devices or elements
B01F 35/33 - TransmissionsMeans for modifying the speed or direction of rotation
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Leiblein, Thomas
Gerl, Stefan
Seiler, Andreas
Schwing, René
Abstract
The present invention relates to a mixing shaft having a tool holder, which is rotatable about a tool axis, and at least one mixing vane, wherein the tool holder has at least one cutout in which a mixing vane portion of the at least one mixing vane is received, wherein a clamping part, which is inserted into the cutout, is provided for fixing the mixing vane portion in the cutout, wherein the cutout has a first and a second cutout portion, wherein the mixing vane portion is arranged in the first cutout portion and the clamping part is arranged at least partially in the second cutout portion, characterized in that the first cutout portion and the second cutout portion are arranged next to each other in a plane which runs perpendicular to the tool axis.
B01F 27/07 - Stirrers characterised by their mounting on the shaft
B01F 27/072 - Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
B01F 27/1121 - Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades pin-shaped
B01F 27/191 - Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
B01F 27/2121 - Mixers with rotary stirring devices in fixed receptaclesKneaders characterised by their rotating shafts composed of interconnected parts
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Gerl, Stefan
Seiler, Andreas
Schmitt, Clemens
Abstract
The invention relates to a tool (1) for dry mixing and coating powder mixtures, comprising a securing shaft (2) and an approximately disc-shaped element (4) which is secured to the securing shaft and has a diameter d, an upper surface, a lower surface, and a peripheral surface which connects the upper and lower surface. The disc-shaped element has a plurality of grooves running parallel to the shaft axis, wherein each groove has two groove walls extending from the peripheral surface to a groove base, and a tooth (5) is formed between two grooves. The aim of the invention is to provide a tool which is suitable for an especially low-contamination dry mixing process, dry dispersion process, and coating process of powder mixtures. According to the invention, this is achieved in that the disc-shaped element has a main part and at least one wear element (6) secured to the main part, said wear element forming at least one respective groove wall section adjoining the peripheral surface.
B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
B01F 9/18 - Mixers with rotating receptacles rotating about a vertical axis with rotary discs
B01J 2/10 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic in stationary drums or troughs, provided with kneading or mixing appliances
B01J 2/12 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Seiler, Andreas
Abstract
The present invention relates to a mixer, comprising a mixing container, which is retained in a machine stand (2), an outlet opening (5) arranged in the bottom of the mixing container (1) being provided, and a closing cover (3) being provided, which can be moved back and forth between a closed position, in which the closing cover (3) closes the outlet opening (5), and an open position, in which the closing cover (3) does not close the outlet opening (5). According to the invention, in order to provide a mixer, the emptying opening (5) of which can be easily opened and closed and in the case of which the risk of soiling of the drive of the closing cover (3) is considerably lower, the closing cover (3) is connected to the machine stand (2) by means of a four-bar linkage having four rotary joints, a first and a second rotary joint (10, 11) of the four-bar linkage being arranged on the closing cover (3) and a third and a fourth rotary joint (8, 9) of the four-bar linkage being arranged on the machine stand (2).
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Ott, Christian
Günther, Timo
Abstract
The invention relates to a mixing device with a container (1) which can be rotated about a container axis for receiving mixing material and the base of which is equipped with an emptying opening (7), a rotatable mixing tool which is arranged in the interior of the container, and a closure element (13) for closing the emptying opening (7). The closure element can be pivoted about a pivot axis (14) in order to open and close the emptying opening (7), and the closure element has an inner surface which is arranged within the container when the emptying opening (7) is closed, an outer surface which is arranged outside of the container when the emptying opening (7) is closed, and an edge surface which is arranged opposite an edge surface of the emptying opening (7) when the emptying opening (7) is closed. The aim of the invention is to provide a mixing device of the aforementioned type which allows a transfer of the mixing material via a comparably small cross-section. According to the invention, this is achieved in that the closure element, the emptying opening (7), and the pivot axis are designed and arranged such that a point on the inner surface or the edge surface of the closure element, said point being arranged farthest away from the pivot axis, defines a circle during the pivoting movement, wherein the closure element is arranged within the circle, and the edge surfaces of the emptying opening (7) are arranged outside of the circle.
DEVICE FOR CONVERTING A LINEAR MOVEMENT IN A STATIONARY SYSTEM INTO A ROTATIONAL MOVEMENT ABOUT A PIVOT AXIS IN A SYSTEM WHICH ROTATES ABOUT A ROTATIONAL AXIS
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Blau, Simon
Schmitt, Clemens
Abstract
The invention relates to a converting device for converting a linear movement in a stationary system into a rotational movement about a pivot axis (9) in a system which rotates about a rotational axis (8), wherein the pivot axis (9) and the rotational axis (8) are not identical and do not run parallel to each other. The converting device has a lifting element and a lifting device (12, 13), by means of which the lifting element can be moved in a translational manner relative to the stationary system, and the lifting element has a first (14) and a second lifting element part (15) which are connected together via a rotary bearing (16) such that the first lifting element part (14) can be rotated relative to the second lifting element part (15) about the axis of the rotary bearing (16). The two parts of the lifting element (14, 15) are connected together in a formfitting manner in the direction of the translational movement of the lifting device (12, 13). The first lifting element part (14) is connected to the lifting device (12, 13), and the second lifting element part (15) is connected to the converting device. The converting device is connected to a shaft (19, 19', 19") positioned on the pivot axis (9) such that a linear movement of the second lifting element part is converted into a rotational movement of the shaft (19, 19', 19") about the pivot axis (9).
F16H 25/18 - Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Seiler, Andreas
Münkel, Stefan
Matter, Tobias
Abstract
The invention relates to a mixing device comprising a mixing container (1) for receiving material to be mixed and a mixer cover (12), wherein a first seal (5) is provided between the mixing container (1) and mixer cover (12). In order to provide a mixing device which at least reduces the described disadvantages, according to the invention, a second seal (6) is provided and the first and the second seal (5, 6) are arranged in such a way that a first air space (11) is formed between the first and the second seal (5, 6).
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Blau, Simon
Schmitt, Clemens
Abstract
The present invention relates to a mixing device, comprising a container (1) for receiving material for mixing, wherein a discharge opening (5) is disposed in the base thereof, and a closure lid (6', 6'') for closing the discharge opening (5). In order to provide a mixing device which has a discharge opening (5) that can be opened and closed in a simple and space-saving manner, it is proposed according to the invention that the closure lid (6', 6'') consists of two closure lid parts (6', 6'') which can be moved back and forth relative to one another between a closed position, in which the two closure lid parts (6', 6'') contact each other and together form the closure lid (6', 6''), and an open position, in which the two closure lid parts (6', 6'') are spaced apart from one another, so that an opening for removing the material for mixing from the container (1) is formed between the two closure lid parts (6', 6'').
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Seiler, Andreas
Abstract
The present invention relates to a mixing device (1) comprising a mixing container (2) for receiving mixing material, which container can be rotated about a first axis of rotation (18) and has a mixer opening (4), and comprising a mixer lid (6) which can be reciprocally moved between an open position and a closed position, the mixer lid (6) closing the mixer opening (4) in the closed position and exposing the mixer opening (4) in the open position, a machine stand (16) being provided in which the mixing container (2) is rotatably mounted and to which the mixer cover (6) is fastened such that, in the closed position of the mixer cover (6), the mixing container (2) can be rotated about the first axis of rotation (18) relative to the mixer cover (6), and a drive (11) preferably being located on the machine stand (16) and being provided for driving a rotary movement of the mixing container (2) about the first axis of rotation (18). In order to provide a mixing device (1) having an angle of inclination which can be particularly easily set by the user and which can be particularly easily cleaned and inspected by the user, according to the invention the machine stand (16) has a stationary element and a pivot element (8), the pivot element (8) being pivotably mounted about a pivot axis (20) relative to the stationary element, the mixing container (2) being rotatably mounted on the pivot element (8), and the mixer cover (6) being fastened to the pivot element (8).
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Schmitt, Clemens
Dörr, Martin
Abstract
The invention relates to a mixer (1) comprising a mixing container (2) having and outlet opening (3), comprising a closure cover (4), which can be moved back and forth between a closed position, in which the closure cover closes the outlet opening, and an open position, in which the closure cover uncovers the outlet opening so that mixture can be removed from the mixing container via the outlet opening, comprising at least one cleaning nozzle (10, 13, 14) to clean the closure opening and/or a mixture outflow region (9) arranged outside the mixing container, and comprising a liquid feed (11) to feed cleaning fluid to the at least one cleaning nozzle (10, 13, 14). In order to provide a mixer and a method for enabling cost-effective, efficient, simple and operationally reliable cleaning of the mixture outflow region and of the closure opening, at least one cleaning nozzle (13, 14) is fastened to the closure cover (4) such that it is moved together with the closure cover.
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Schmitt, Clemens
Blau, Simon
Abstract
The present invention relates to a mixing blade consisting of a base part (1) which can be attached to a shaft, and a wear element (8), wherein the wear element (8) is or can be releasably attached to the base part (1). To provide a mixing blade that allows the wear element (8) to be easily released from the base part (1), the invention proposes that to attach the wear element (8) to the base part (1), at least one element from the group consisting of the wear element (8), the base part (1) and an intermediate element arranged optionally at least partially between the wear element (8) and the base part (1) is elastically deformed such that it exerts a force on another element from the group.
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Seiler, Andreas
Bechtold, Matthias
Dörr, Martin
Luksche, Christian
Abstract
The present invention relates to a mixing shaft (1) having a tool holder (2) and having a mixing vane (3), wherein the tool holder (2) has a recess in which a section of the mixing vane (3) is fastened. In order to provide a corresponding simple mixing shaft (1) with tool holders (2) which reliably permits individual exchange of individual mixing vanes in a simple manner, it is proposed according to the invention that a clamping part (11) inserted into the recess is provided for fixing the mixing vane section in the recess, wherein clamping part (11), recess and mixing vane section are designed such that a non-positively locking connection of the mixing vane in the recess is realized by means of the clamping part (11).
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Seiler, Andreas
Gerl, Stefan
Li, Feng
Abstract
The invention relates to a molding sand cooler having a sand chamber which has an air inlet, if necessary comprising a fan, for the supply of air into the sand chamber, and an air outlet, if necessary comprising a fan, for the extraction of air from the sand chamber. The problem addressed by the invention is that of providing an improved molding sand cooler in which the discharge of sand via the air outlet during the cooling operation is reduced considerably. This problem is solved in that a dynamic air separator that is rotatable about an axis is provided, which air separator is arranged in such a way that substantially the whole air stream leaving the sand chamber through the outlet is guided through the dynamic air separator.
B22C 5/04 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
B01F 7/16 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a vertical axis
B01F 7/30 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a vertical axis with stirrers having planetary motion
B22C 5/08 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
B07B 7/083 - Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Seiler, Andreas
Li, Feng
Gerl, Stefan
Eirich, Paul
Abstract
The invention relates to a device (1) for reprocessing and cooling foundry sand, comprising a mixing container (2) and a mixing tool that can be rotated about a drive shaft (4), wherein an air feed (7) is provided for feeding air into the container interior. The problem addressed by the invention is that of providing an improved device by means of which a more uniform fluidized bed is achieved, preferably over the entire cross-section of the mixing container, wherein furthermore the proportion of the solid particles entrained by the gas flow should be reduced. This problem is solved, according to the invention, in that the mixing tool has at least two mixing vanes (8) spaced apart from each other in the vertical direction and at least one mixing vane has a mixing blade having a surface that is angled with respect to the horizontal.
B22C 5/04 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
B22C 5/08 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
15.
A NEW METHOD OF MAKING A CEMENTED CARBIDE OR CERMET BODY
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Ronnheden, Sofia Maria
Thompson, Christopher
Fuller, Peter George
Gerl, Stefan
Abstract
A method of manufacturing a cemented carbide and/or cermet comprising the steps of: a) providing a powder comprising metal carbide and binder metal and optionally metal nitride(s); b) mixing the powder composition under vacuum; c) adding at least one organic binder to the powder composition; d) mixing the at least one organic binder with the powder composition under vacuum and raising the temperature to a predetermined temperature and keeping the temperature for a predetermined time until the organic binder has melted; e) subjecting the obtained mixture of step d) to forming and sintering processes; wherein one or more dispersing agents is added to the powder composition in step a).
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
C22C 29/10 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on titanium carbide
C22C 29/16 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on nitrides
B22F 3/22 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor for producing castings from a slip
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Münkel, Stefan
Seiler Andreas
Gerl, Stefan
Abstract
The present invention relates to a granules conditioner for optimizing grain sizes of granules, comprising two discs (1, 2), which are rotatable in relation to one another and are arranged substantially parallel to one another, comprising a granules inlet, through which granules can be introduced into the conditioner into an annular gap (7) between the two discs, and a collecting container (10) for receiving the granules that leave the gap between the two discs as a result of the centrifugal force. It is proposed according to the invention that the collecting container (10) has a flexible curtain (11), wherein the curtain is kept at a distance from the collecting container wall, at least in certain parts, and limits the trajectory of the granules leaving the gap.
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Nold, Peter
Abstract
The present invention relates to a process for producing an optimized granular material, which comprises the steps A) production of a granular material in a granulating mixer having a vessel and a stirrer and B) comminution of at least part of the granular material in a granular material conditioner having two elements which move relative to one another, with the granular material being conveyed though a gap between the two elements.
B01J 2/10 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic in stationary drums or troughs, provided with kneading or mixing appliances
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Seiler, Andreas
Ahke, Klaus
Abstract
The invention relates to an agitator ball mill having a vertically arranged container, in which an agitator that can be rotated about a vertical axis is arranged, and having at least one wear-prevention element (1) that can be mounted on the container inner wall with the aid of a securing system, wherein the securing system consists of a securing pin (9) and a securing recess (4) which are arranged on the container inner wall and/or the rear side of the wear-prevention element (1) in such a way that the wear-prevention element (1) can be secured to the container inner wall by means of a movement of the wear-prevention element (1) in a direction which forms an angle α > 0° with the vertical axis of the rotatable agitator, in that the securing pin (9) is guided into the securing recess (4).
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Gerl, Stefan
Klein, Christina
Abstract
The present invention relates to a granulating and/or agglomerating tool for a granulating and/or agglomerating device, comprising a fastening shaft and an approximately disk-shaped element, which is fastened to the fastening shaft and which has a diameter d. The disk-shaped element has an upper surface, a lower surface, and a circumferential surface that connects the upper surface and the lower surface. In order to provide a granulating and/or agglomerating tool for a granulating and/or agglomerating device, a corresponding granulating and/or agglomerating device, and a method for granulating and/or agglomerating in which the desired granulating or agglomerating result can be achieved much more quickly and above all a clearly finer granular material having a clearly higher yield in the range of 0.1 to 0.8 mm can be achieved, the circumferential surface has a plurality of substantially V-shaped grooves extending parallel to the shaft axis.
B01F 9/08 - Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers with rotating stirring devices
B01J 2/10 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic in stationary drums or troughs, provided with kneading or mixing appliances
B01J 2/12 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums
B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO KG (Germany)
Inventor
Doerr, Martin
Wörner, Wolfgang
Gerl, Stefan
Schmitt, Clemens
Wagner, Peter
Abstract
The present invention relates to a mixing device, comprising a vessel for receiving material for mixing, which can be rotated about a vessel axis and has a discharge opening (14) disposed in the base thereof, a mixing tool (2) disposed in the interior of the vessel, and a closure lid for closing the discharge opening, wherein the vessel base and/or the closure lid are provided with a wear-resistant lining on the side facing the interior of the vessel. In order to provide a mixing device having a wear-resistant lining which is less prone to wear, and in the event of wear can be replaced more easily and above all more cost-effectively, according to the invention the wear-resistant lining consists of a main lining part (31) and a wear element (28), wherein the wear element (28) is disposed closer to the vessel axis than the main lining part (31).
B01F 9/12 - Mixers with rotating receptacles rotating about a vertical axis with paddles or arms
B65D 90/62 - Gates or closures having closure members movable out of the plane of the opening
F16K 1/16 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Seiler, Andreas
Wörner, Wolfgang
Abstract
The invention relates to a mixer having a rotating mixing container and a tool shaft (8) arranged at least partially in the mixing container, having a drive end and an operating end for a tool (6), wherein the tool shaft (8) is mounted on the drive end by means of two tool bearings, spaced apart from one another, and there is a drive motor (7) for the tool shaft (8). In order to create a mixer that is simple and cost-effective to produce, having as few movable and wearing parts as possible and a tool shaft (8) that is furthermore capable of sustaining the significant transverse forces occurring in operation, according to the invention the drive motor (7) has a motor shaft that is mounted at least on one side by a tool bearing.
B22C 5/04 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Gerl, Stefan
Seiler, Andreas
Abstract
The present invention relates to a mixing device comprising a preferably rotating container for holding a mixture, at least one mixing tool arranged inside the container, and a heating device for heating the mixture. In order to provide a mixing device of the type mentioned above which permits the fastest possible heating of the mixture, preferably also to temperatures above 200°C, it is proposed that the container be composed at least partially of an electrically conductive material and the heating device comprise at least one coil which can be excited by an alternating electric field and which is arranged in such a way that eddy currents are produced in the electrically conductive material of the container by the magnetic field change that arises when the current flow is changed.
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Seeber, Roland
Kohler, Clemens
Abstract
The present invention relates to a method for preparing molding sand. In order to provide a method with a simple regulation system for controlling the compressibility of a circumferential molding sand, it is suggested according to the invention that the mold sand is divided into multiple charges, and the preparation parameters, such as for example the amount of water, new sand, and/or sludge to be added, are corrected based on the difference measured between actual compressibility and target compressibility of the molding sand, following preparation of the previous charge.
MASCHINENFABRIK GUSTAV EIRICH GMBH & CO. KG (Germany)
Inventor
Gerl, Stefan
Sachweh, Jens
Abstract
The invention relates to a vertical grinding mill, comprising a closed vertical milling container (1), in which a screw conveyor (2) is arranged so that it can be rotationally driven, conveying grinding bodies (17) to the top. The package of grinding bodies (17) adjusts itself during operation such that the surface (29) thereof is configured to slope radially outward and downward and to end in the region of the bottom edge (18) of an outlet for grinding material (11). Gas is introduced into the milling container (1) above the package of grinding bodies. The gas and grinding material (22) is removed from the milling container (1) via the outlet for grinding material (11).
B02C 17/16 - Mills in which a fixed container houses stirring means tumbling the charge
B02C 17/18 - Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls Details