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Loose grinding body comminutor (e.g., ball or rod mills)

Subclass of:

241 - Solid material comminution or disintegration

241000000 - APPARATUS

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
241170000 Loose grinding body comminutor (e.g., ball or rod mills) 46
20130008988PORTABLE GRINDING DEVICE - The present invention is related to a grinding device, comprising a body configured as a hollow barrel having an open and a first fixing element positioned close to said open; an inner cap configured to mount to an inner wall of an end close to said open of said body having a second fixing element corresponding to said first fixing element; wherein an aperture is provided on said inner cap, and a first leak-proof seal is configured to surround said aperture; an outer cover having a second leak-proof seal, wherein said second leak-proof seal is made joint said first leak-proof seal for leak-proofing; and a grinding element positioned inside said body and capable of moving therein freely; wherein an area of any cross section of said grinding element is bigger than said aperture of said inner cap.01-10-2013
241171000 With feed and/or discharge 7
20090072060Agitating Ball Mill - Agitating ball mill with a cylindrical grinding vessel comprising at least one grinding stock inlet and at least one grinding stock outlet wherein in the grinding vessel an agitating shaft connected with a drive is arranged which transmits a part of the drive energy to auxiliary grinding bodies which are loosely arranged in the grinding vessel and a separating device arranged in front of the grinding vessel outlet.03-19-2009
20100206972SLURRY RETURN SYSTEM FOR GRINDING MILLS - A sand wheel seal for a grinding mill, which in use is internally disposed within said mill. Preferably the sand wheel seal is integrally formed with a mill throat liner wheel and may be releasably secured to a feed end of said mill. The grinding mill may be any one of a Sag, Ag, Ball or Rod mill.08-19-2010
20100270408Media-agitation type pulverizer - Disclosed is a media-agitation type pulverizer, which is enabled to acquire products of high quality by excellent pulverizing/dispersing actions. The media-agitation type pulverizer comprises a grinding container having a material entrance and a spherical grinding chamber, an agitating member disposed rotatably in the grinding chamber and near the inner wall of the grinding container, grinding media contained in the grinding chamber, and a centrifugal-type media-separating member rotatably disposed in the grinding chamber and in opposed relation to the agitating member.10-28-2010
20100282884AGITATOR MILL - An agitator mill for treating free-flowing grinding stock has a grinding receptacle and an interior stator disposed therein. A rotatably drivable annular cylindrical rotor is disposed between the interior stator and the receptacle wall, with a grinding chamber being defined between said rotor and the receptacle wall. A grinding-stock discharge conduit is formed between the rotor and the interior stator (11-11-2010
20110000993AGITATOR BALL MILL - An agitator ball mill for finely grinding or dispersing material has a cylindrical or conical grinding chamber for accommodating grinding bodies and for accommodating the material which is to be ground or dispersed. It also has an inlet, which is arranged at one end of the grinding chamber, an agitator, which extends in the axial direction into the grinding chamber and has agitating means, and a product outlet for the ground or dispersed material, the product outlet being arranged at the other end of the grinding chamber. Arranged in a central region at the outlet end of the grinding chamber is a gas outlet through which gaseous components, but not grinding bodies, can be discharged out of the grinding chamber.01-06-2011
20120267463VIBRATORY MILL - A vibratory mill principally for the treatment of cement and fly ash, which mill has a grinding chamber (10-25-2012
20130026270APPARATUS FOR FEEDING GRINDING BODIES TO A GRINDING MILL - The employed feed element in a grinding body feed apparatus of a grinding mill is the grinding bodies supply tank proper, in which the grinding bodies are charged from a ball hopper or storage. In connection with the supply tank, there is provided a grinding bodies discharge element, by means of which the grinding bodies are conducted to a duct serving as a feed chute and leading to the grinding mill, and via said duct, to the grinding mill proper. The opening and closing of the supply tank is carried out by external, opposing control elements that encircle the drum element of the supply tank in relation to its frame. By means of the feed device, it is possible to feed one ball at a time to the mill, in which case a correct number of balls can be supplied.01-31-2013
241172000 With independent means moving or guiding the material and/or grinding bodies in receptacle 5
20110168820STIRRED BALL MILL ASSEMBLY WITH MAGNETIC DRIVE SYSTEM - A stirred ball mill assembly includes multiple vessels each having a body supporting sets of magnets rotatable with respect to the body. Each vessel defines an enclosed milling chamber, and has a stirring arm assembly extending in the respective enclosed milling chamber and connected for rotation with the respective sets of magnets. The sets of magnets and the stirring arm assembly are completely enclosed within the respective vessel. The vessels are configured to be stacked with one another so that adjacent ones of the sets of magnets are magnetically coupled with one another. A drive motor assembly has another set of magnets magnetically coupled with one of the sets of magnets of the stacked vessels. The drive motor can rotate the stirring arm assemblies within the milling chambers of the milling chambers of the stacked vessels via magnetic coupling of the magnets.07-14-2011
20110220752LIFTER BAR ASSEMBLY FOR A CRUSHING MILL AND METHOD OF INSTALLATION - A lifter bar assembly for a crushing mill is disclosed including: a plurality of lifter bar segments; the segments being arranged to be installed adjacent to one another to form a lifter bar; wherein each of the segments are of a weight which can be safely handled by a team of two people.09-15-2011
20160101426METHODS AND APPARATUS FOR THE CONTINUOUS MONITORING OF WEAR IN GRINDING CIRCUITS - A system for the continuous monitoring of wear is disclosed. The system comprises a grinding mill (04-14-2016
20160144373AGITATOR MEANS FOR VERTICAL GRINDING MILLS - The present invention concerns agitator means for a vertical grinding mill, which includes a screw flight system having a shaft and at least one screw flight. According to the invention the screw flight system is provided in at least two segments, wherein each segment comprises at least one screw flight section integral to a shaft section, and wherein the at least two segments are arranged for assembling to one another to form the screw flight system. The present invention further concerns a vertical grinding mill comprising agitation means according to above, and a construction assembly for agitation means according to above.05-26-2016
241173000 Rotary grinding body pusher (e.g., ball chasers) 1
241174000 Horizontal axis 1
20140367504HORIZONTAL DRY MILL - It is intended to, in a horizontal dry mill, prevent blow-up and adhesion of a raw material, etc., to a raw material input section. In a horizontal dry mill (12-18-2014
241175000 Compound movement receptacle 4
20080197223PLANETARY BALL MILL - A planetary ball mill includes: a revolution turning arm turned about a revolution shaft rotated by a driving force; mill pots each supported on the revolution turning arm so as to be rotated about a rotation shaft inclined from the vertical direction toward the side of the revolution shaft; and an outer circumferential pot receiver which is disposed fixedly on the upper side of the revolution turning arm along the whole part of a circumference around the revolution shaft and with which the outer peripheral surfaces of the mill pots revolving attendantly on the turning of the revolution turning arm make contact, whereby the mill pots are put into rotation.08-21-2008
20090072061CONTINUOUS VIBRATORY MILLING MACHINE - A vibratory milling machine has a vibratory housing confined to substantially linear reciprocating motion relative to a base, causing a tool carried by the housing to impact a mineral formation or other work piece substantially in a primary milling direction. The vibratory motion may be generated by two or more eccentrically-weighted rotors rotated by a common drive mechanism. The rotors may be arranged in pairs with the rotors of each pair rotating in opposite directions about parallel axes so that lateral oscillations cancel and longitudinal vibrations in the milling direction reinforce one another. In one embodiment, a hydrostatic fluid bearing is provided between the outer surface of each rotor and the housing.03-19-2009
20110017854GRINDER WITH DOUBLE FORCED MOVEMENT OF THE GRINDING MEDIUM - A grinder includes a double forced movement in which the movement of the grinding medium in the chambers of the grinder drum is forced by a vibrator device as well as by the drum itself. The combination of the vibrating movement of the rotating grinding medium, which is caused by the vibrator with the rotary movement of the grinding medium, in turn resulting from the rotation of the drum around an eccentrically shifted axis, significantly increases the centrifugal forces of the grinding medium and causes the creation of a layer of rotating grinding medium together with the grinded material inside the drum chamber, while the thickness of the layer is thereby differentiated.01-27-2011
20140117131CENTRIFUGAL BALL MILL - A centrifugal ball mill has a cylindrical container in which an object to be crushed and a crushing ball are contained, a revolution mechanism that revolves the container about a revolution axis, and a rotation mechanism that rotates the container about a rotation axis. Furthermore, the centrifugal ball mill has an inclination mechanism that inclines an inner periphery face relative to the rotation axis such that a position where centrifugal force acting due to revolution about the revolution axis is maximum in the inner periphery face changes in an axial direction of the container as the container rotates about the rotation axis, and such that the crushing ball moves in a circumferential direction and the axial direction of the container to describe a trajectory of a three dimensional Lissajous curve.05-01-2014
241176000 Rotating receptacle 4
20090218426HIGH SPEED ORBITING BALL MEDIA PROCESSORS - According to one embodiment, a ball mill for working generally spherically shaped target particles into a flake-shaped end product is provided. The ball mill includes a milling tube, one or more milling balls disposed within the milling tube, and a vibration source that is positioned and adapted to move the milling tube such that its central axis follows along a substantially circular path. The continuously changing direction of the acceleration of the milling tube results in each of the milling balls following a respective, substantially orbital path about the milling tube's central axis. As the milling balls follow the respective, orbital paths, the milling balls come into contact with and transform the target particles into flakes. In a further embodiment, the ball mill may further include a virtual particle separator configured to route intermediate particles back to an inlet portion of the milling tube for additional processing time.09-03-2009
20140097281Agitator Ball Mill Having Wear Prevention - The invention relates to an agitator ball mill having a vertically arranged container, in which there an agitator that can be rotated about a vertical axis is arranged, and having at least one wear prevention element that can be fitted to the container inner wall with the aid of a fixing system, wherein the fixing system comprises a fixing pin and a fixing cut-out, which are arranged on the container inner wall and/or the rear side of the wear prevention element in such a way that the wear prevention element can be fixed to the container inner wall by means of a movement of the wear prevention element in a direction which forms an angle α>0° with the vertical axis of the rotatable agitator, in that the fixing pin is guided into the fixing cut-out.04-10-2014
20140203128SHELL SUPPORTED GRINDING MILL - A grinding mill comprising an essentially horizontally oriented, rotatable drum, a support bearing supporting the drum, and a riding ring connecting the drum to the support bearing is provided. The drum has a circumferential wall having a first end and a second end, a first end wall arranged at the first end of the circumferential wall, and a second end wall arranged at the second end of the circumferential wall. The riding ring is integrally formed with the first end wall.07-24-2014
241178000 Roller supported receptacle 1
20110121115AGITATOR BALL MILL - An agitator ball mill for finely grinding or dispersing a material comprises a grinding chamber for accommodating grinding bodies and for accommodating the grinding material. The grinding chamber has an inlet for the grinding material and is provided with an agitator which can be driven in rotation and has agitating means for moving the grinding bodies and the grinding material. A separating arrangement for separating off the grinding bodies from the ground material is arranged in the grinding chamber. The grinding chamber also has a product outlet for the material which has been ground and freed from grinding bodies, wherein the ground material passes through the separating arrangement into the product outlet. The separating arrangement is designed as a sedimentation centrifuge which can be driven in rotation and has an axial entrance, or an entrance which is at least in the vicinity of the axis, for the material intermixed with the grinding bodies.05-26-2011
241179000 Receptacle structure 23
20090166456Method for Manufacturing a Multimaterial Component or Construction - A method for manufacturing a multimaterial component or construction, whereby a multimaterial component or construction is manufactured comprising wear resistant material and elastomer material. The invention also includes use of a multimaterial component or construction manufactured with said method.07-02-2009
20100181402Laboratory Vibration Grinding Mill Having Inclined Grinding Bowls - A laboratory vibration grinding mill comprising a circular oscillating drive that operates in at least two dimensions, at least one support, and a respective elongated grinding bowl held in each support. The grinding bowl has a filling of grinding bodies and is provided with frontal grinding bowl bases. The support for a grinding bowl is configured such that a longitudinal axis of the grinding bowl forms an angle of less than 90° with a plane of movement of the circular oscillating drive such that due to movement paths of the grinding bodies in the grinding bowl caused by the inclined position of the grinding bowl relative to the plane of movement of the circular oscillating drive, the frontal grinding bowl bases are incorporated into a size-reduction process as abutment and grinding surfaces.07-22-2010
20130284838MECHANO-CHEMICAL REACTORS - A mechano-chemical reactor comprising, driving means extended along one or more parallel axis, a mass made oscillating by the driving means along the direction of a vertical axis and an elastic system for a partial compensation of the inertial forces generated by the oscillating mass. The oscillating mass includes at least one restricted environment loaded with solid and/or liquid substances are loaded in order to be treated by the kinetic energy of milling bodies. The elastic system comprises flexible elements made of a titanium alloy which are either one-dimensional, i.e. a plurality of rectilinear parallel rods, or bi-dimensional, i.e. at least a polygonal plate having two sides parallel to the axis of the driving means. In rest conditions the flexible elements are extended substantially perpendicular to the direction of the oscillations of the mass.10-31-2013
20160107164Closure System For Ball Mills And Method For Opening And Closing Ball Mills - A closure system for ball mills, a method for opening and closing ball mills, and a ball mill including a milling vessel with an end opening which can be closed by a closure mechanism. The closure mechanism assigned a first flange with first connecting devices, and the end opening of the milling vessel assigned a second, mating flange with second connecting devices. The closure mechanism can be fastened on the milling vessel via the first and the second connecting devices.04-21-2016
20160121337STRESS DISTRIBUTION ELEMENT FOR A GRINDING MILL SHELL - Provided is a stress distribution element for a mill shell joint, comprising an elongated body having a proximal end and a distal end. The elongated body varies in one dimension from the proximal end to the distal end to distribute stress forces from the proximal end to the distal end. The invention also provides a stress distribution system, a stress distribution assembly, a mill shell section, a mill shell and a method of distributing stress incorporating the stress distribution element.05-05-2016
241181000 With lifting or distributing at extremity of receptacle 1
20120228416LIFTER BAR - A lifter bar for lifting an engaged portion of a load comprising a number of ore pieces above a disengaged portion of the load in a grinding mill having a shell rotatable about an axis thereof. The lifter bar includes a leading face having one or more leading surfaces, and a trailing face. The lifter bar is mountable on the shell located at a predetermined distance from a trailing face of a preceding lifter bar. When the lifter bar and the preceding lifter bar are mounted on the shell, the leading face and the trailing face of the preceding lifter bar at least partially define a pocket therebetween in which a part of the engaged portion of the load is at least partially retainable, until the leading surface is located in a predetermined release position, at which the part has substantially exited the pocket under the influence of gravity.09-13-2012
241182000 With lining 17
20080302896INSTALLATION OF LINERS IN A TUBE MILL, TUBE MILL PROVIDED WITH LINERS - A tube mill is provided with liners fastened to a shell. The tube mill is provided with an adaptor plate. The adaptor plate is provided with a first pattern of drilling holes in a DIN pattern and a second pattern of drilling holes in a non-DIN pattern. The adaptor plate is fastened to the shell via one or more holes of the second pattern and a number of liners is fastened to the adaptor plate via one or more holes of the first pattern.12-11-2008
20100127109WEAR LINING ELEMENT AND AN ARRANGEMENT FOR THE ATTACHMENT OF SUCH - The invention concerns an arrangement for the joining and attachment of a wear lining element (05-27-2010
20100181403DRUM LINER ASSEMBLY FOR A MILL DRUM HAVING REPLACEABLE DRUM LINER SEGMENTS - An apparatus includes a mill drum for pulverizing and classifying material. The mill drum includes a cylindrical drum housing and one or more beater plates mounted for rotation within the housing. Each beater plate includes a plurality of beaters mounted on the peripheral edges thereof. A drum liner assembly includes a plurality of drum liner segments secured to the drum housing. Each drum liner segment includes a backing plate and one or more drum liners mounted thereon. The drum liners are made of a carbide material to provide superior wear characteristics.07-22-2010
20110073694Mill Liner For A Grinding Mill - A mill liner element is structured with an elongated elastomer member having a non-elastomeric backing plate and a plurality of non-elastomeric inserts formed into the elastomer member to provide a liner element that provides a lifter bar element and a wear element that is less prone to cracking compared to conventional all-metal mill lining elements, and which provides ease of handling and replacement when worn. A multiplicity of mill liner elements are positionable in a grinding mill shell, and are suitable for use in a variety of types of grinding mill structures, including ball mills and AG and SAG mills.03-31-2011
20110186670LINER COMPONENT FOR A GRINDING MILL AND METHOD OF FABRICATING THE COMPONENT - A method of fabricating a liner component for a grinding mill is described, the method including the steps of: providing a plate of hard material; cutting the plate to form a plurality of inserts, at least some of the inserts including a formation for mechanically engaging with a body of a resilient material; arranging the inserts in a mould, and—adding resilient material to the mould to form a resilient material body around the inserts to thereby form the liner component.08-04-2011
20120181364MILL LINER ASSEMBLY - A mill liner assembly for mounting on an inner diameter of a shell of a grinding mill. The mill liner assembly includes one or more shell plates for engagement with the shell, each of the shell plates having a cooperating portion thereof, and one or more lifter bars, each of the lifter bars having a mounting portion thereof, the mounting portion being receivable on the cooperating portion. The mill liner assembly also includes one or more layers having one or more substantially non-resilient materials and a substantially non-sticking surface. The layer is at least partially positioned on at least a first selected one of the cooperating portion and the mounting portion, to position the non-sticking surface thereof for engagement with a second selected one of the cooperating portion and the mounting portion, to impede adhesion of the shell plate and the lifter bar to each other.07-19-2012
20130140387WEAR PLATE FASTENING SYSTEM, ARRANGEMENT AND METHOD - A wear plate system comprises a wear plate for mounting to the inside of a grinding mill A fastening arrangement comprises an elongate coupling member having a first end arranged to secure to the wear plate such that when so secured the coupling member is arranged to pivot with respect to the wear plate. A second end of the elongate coupling member secures to the grinding mill06-06-2013
20140319256LINER FASTENER - A liner fastener for fastening a liner to a rotatable shell of a grinding mill, the fastener comprising a flexible tie, retaining means for retaining the fastener relative to the liner, and a tensioning fitting, wherein the flexible tie is adapted to be inserted into a mounting aperture in the shell, and the tensioning fitting is adapted to be fitted to an end portion of the flexible tie protruding outside the shell to bear against the shell and to maintain tension in the fastener to thereby fasten the liner to the shell.10-30-2014
20150069159Interlocking liner segments for a tumbling unit - An interlocking liner segment for a tumbling unit is disclosed which comprises a body having an inner surface having a first end and a second end, an outer surface, a first side edge, a second side edge opposite the first side edge, a front edge, and a back edge, a first lifter portion at the first end having a first aperture; a second lifter portion at the second end having a second aperture; and a rifling portion on the inner surface intermediate the first lifter portion and the second lifter portion.03-12-2015
241183000 With lifting or distributing characteristics 8
20090065618Cushioning Element for Mill Liner - A cushioning element suitable for use in a liner assembly for a grinding mill, the liner assembly including a mounting element having a recess therein, the cushioning element being located within the recess, and a wear element operatively connected to the cushioning element, the cushioning element including a cushion body of elastomeric material including a side section and opposed end sections, a plurality of cavities within the cushion body and extending from at least one of the end sections towards the other end section.03-12-2009
20090242675Composite Lifting Element of a Grinding Mill - A lifting element for a drum of a grinding mill to be used for grinding of ores and minerals, said lifting element being attached to a frame of the drum and extending in the longitudinal direction of the drum, and said lifting element comprising a flexible body and a wear protection located in the leading edge of the body with respect to the direction of rotation of the drum. The wear protection consists of at least two different parts, said parts being manufactured of different materials having toughness and hardness different from each other.10-01-2009
20130299617LIFTER BAR WITH ATTACHMENT POINT FOR HOISTING - A lifter bar is includes at least one attachment formation for use in lifting the lifter bar; wherein the at least one attachment formation is embedded in the lifter bar. A method of producing the lifter bar and tools for use in handling the lifter bar are also described.11-14-2013
20130327863WEAR-RESISTANT LINING FOR MILLS - A wear-resistant lining for ball mills comprises a base (12-12-2013
20140203129LINER ELEMENTS WITH IMPROVED WEAR-LIFE FOR GRINDING OPERATIONS - Some of the embodiments described herein relate to liner elements such as lifter bars that can be used in grinding mills. In one example, a lifter bar has a top elastomeric layer and a bottom elastomeric layer, the composition of the top elastomeric layer being different from that of the bottom elastomeric layer. In another example, a lifter bar is constructed from carbon black-reinforced natural rubber and has a leading face and a protrusion at a top region of the leading face. In a further example, a lifter bar is fabricated from carbon black-reinforced natural rubber and has a leading face geometry such that face angle θ remains 25° or less over an operational period measured form the time the lifter bar is new, until the height of the lifter bar is reduced by a certain amount, e.g., by 80%. Also disclosed are methods for manufacturing an elastomeric liner element and for grinding an ore.07-24-2014
20150367351HOMOGENIZATION TUBES WITH FLOW DISRUPTERS FOR BEADLESS INTERRUPTED FLOW - A flow disrupter in a tube chamber of a tube assembly for homogenizing sample materials includes a flow-disrupting body that extends generally transversely into the tube chamber and divides the tube chamber into two sub-chambers. The flow-disrupting body includes at least one narrowed flow passageway through which the sample flows back and forth in both axially reciprocating directions as the tube assembly is vigorously shaken at high speeds faster and more reliably than what can be accomplished by hand shaking. And the flow-disrupting body includes at least two flow-interrupting surfaces facing generally in opposite axial directions and against which the sample impacts in each respective axially reciprocating direction as the tube assembly is vigorously shaken. In this way, the vigorous high-speed shaking of the tube assembly including the flow disrupter results in significant particle-size reduction of the sample by mechanical shear, fluid shear, cavitation, and/or pressure differentials.12-24-2015
20160067715A METHOD OF MAKING A LIFTER BAR, A REFURBISHED LIFTER BAR AND A MOULD - The invention relates to a method of making a lifter bar (03-10-2016
20160250646TREADED LIFTER BAR09-01-2016
241184000 Grinding bodies 2
20080245912Grinding Balls And Their Manufacturing Method - The present invention relates to grinding balls made of fritted ceramic comprising a compound of alumina silicate (αAl10-09-2008
20140191069GRINDING BODY - The invention relates to a grinding body for crushing and grinding of ores rocks or earth, inert and all other materials, in drum and other mills. It finds application in ore enrichment, production of construction materials, waste processing and other industrial branches. The grinding body comprises a spheroidal cone, whose forming curve is part of a circle or of some other geometrical curve and a vertex, and a base which is part of a sphere or of other three-dimensional figure, obtained by rotation of geometrical curves and an edge between them. In one of the versions the cone and the base are connected by a cylinder. For better producibility of the grinding body, a flat spot with circular or other shape is made on the surface of the base. In another version the flat spots are made on the surface of the cone and on the surface of the cylinder between the base and the cone. In a subsequent version the vertex of the cone is cut flat with its plane perpendicular or inclined towards the axis of the body. In other versions, more or less convex peripheral rings are made between the cone and the base. The cross section of these rings has the shape resembling a circle, a triangle or a rectangle. In a subsequent version on the base and on the flat cut vertex short cylinders with flat bases are protruding. All edges and the vertex of the body may be rounded along part of a circle, spiral or other geometrical figure. The grinding body has greater area than the spherical grinding body and greater density in a given space. The existence of an edge and a vertex increases milling productivity.07-10-2014

Patent applications in all subclasses Loose grinding body comminutor (e.g., ball or rod mills)

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