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| Number | Title | Issue Date |
| 7971815 | Milling station and method for grinding milling material A milling station and a method for grinding milling material using at least one coarse grinding circuit and at least one fine grinding circuit. The coarse grinding circuit includes a classifier and a material bed roller mill. The fine grinding circuit includes a tub... | 07/05/2011 |
| 7967226 | Drying mill and method of drying ground material A drying mill for powdered or fine-grained material, in particular also suitable for calcining gypsum, employs a housing, in which a feed device for fuel gas, opening into a lower region, a comminuting device and a material inlet, charging the material onto the comm... | 06/28/2011 |
| 7438245 | Milling and classifying apparatus, collision mill, air classifier, toner, and method for producing toner Disclosed is a milling and classifying apparatus, adapted to produce toner fine particles, comprising a collision mill, and an air classifier, wherein the collision mill comprises a jet nozzle room, a path, a collision plate, and a collision member mounted to a supp... | 10/21/2008 |
| 7370820 | Method and system for harvesting weighting agent fines A method for harvesting weighting agent fines includes milling weighting agent into a plurality of pieces, classifying the pieces based on size to extract those particles having a particle size less than an acceptable maximum diameter, reclassifying the pieces based... | 05/13/2008 |
| 7314190 | Method and device for disintegration of organic material and use of the device A method and apparatus for biological and/or chemical decomposition of waste containing organic matter. The method includes waste pretreatment in which waste is fragmented and homogenised in a pretreatment apparatus (10a, 10b) operating o... | 01/01/2008 |
| 7300007 | Circulating grinding plant comprising a mill and a sifter The aim of the invention is to create a compact circulating grinding plant comprising a product bed comminution roller mill or roller press and a sifter device, in which the problem of mechanically transporting the grinding product that is directed through the circu... | 11/27/2007 |
| 7264185 | Dry grinding system and dry grinding method The invention provides a dry grinding system including grinding means for dry-grinding a material to be ground; first classification means for classifying a ground product obtained through the grinding means, into fine powder having a relatively small average partic... | 09/04/2007 |
| 7240867 | Processing system for manufacturing composite cementitious materials with reduced carbon dioxide emissions A processing arrangement for manufacturing composite cementitious materials, such as hydraulic blended cements, with significantly reduced Portland clinker minerals content. The arrangement includes a milling unit for pregrinding supplementary cementitious materials... | 07/10/2007 |
| 7204439 | Apparatus and process for control of rotary breakers Efficient process control of a rotary breaker is dependent upon the rate at which aggregate material is delivered to the rotary breaker. An improved pre-screening apparatus provides enhanced control of the amount of undersized material allowed to bypass the rotary b... | 04/17/2007 |
| 7104172 | Method for conveying, guiding, and locating a thermoformable web A method for delivering web-supported articles between dies and punches of a trim press. The method includes providing a treadle having an article detector, while moving the web and the articles, guiding the web and the articles along the web and between a pair of t... | 09/12/2006 |
| 7083130 | Dry grinding system and dry grinding method The invention provides a dry grinding system including grinding means for dry-grinding a material to be ground; first classification means for classifying a ground product obtained through the grinding means, into fine powder having a relatively small average partic... | 08/01/2006 |
| 7073737 | Tube grinder and method for comminuting lumpy grinding stock The invention relates to a rotary tube mill and to a method of comminuting lumpy mill feed material, in which at least a first and a second grinding chamber as well as a co-rotating partition disposed between the grinding chambers are used. The material ground in th... | 07/11/2006 |
| 7074126 | Discharge device for a harvesting machine A crop discharge device for discharging crop from a harvesting machine, comprising a rotatatable rotor mounted in a housing having a movable a bottom. The bottom can be put into a reciprocating motion in order to convey the crop to be discharged to the crop discharg... | 07/11/2006 |
| 7048215 | Comminuting apparatus having screen and access tray A comminuting apparatus is provided with a housing, at least two intermeshing scissor rolls, a screen, and an access tray. The housing has an entrance opening for receiving waste material and an exit opening for removing subdivided waste material. The scissor rolls ... | 05/23/2006 |
| 7040562 | Rotating feed distributor A rotating feed distributor for use in connection with rock crushers and other devices is disclosed. The feed distributor has a platform for receiving rocks and a chute having an inlet and outlet wherein the rocks pass through. The feed distributor is designed to re... | 05/09/2006 |
| 7007877 | Screening apparatus A screening apparatus (10) for screening particulate material includes a frame (12) having an open bottom (14) through which screened particles can pass and a plurality of banks of blades (16A–16E) supported on the frame (12 | 03/07/2006 |
| 6988683 | Apparatus for crushing glass or ceramic material Apparatus (2) for crushing glass or ceramic material, which apparatus (2) comprises a rotor (4), rotor blades (6) on the rotor (4), at least one stationary blade (8) which cooperates in use with the rotor blades (6) a... | 01/24/2006 |
| 6969017 | Comminuting apparatus A comminuting apparatus is provided having a frame, a set of overlapping scissor rolls, a shear outtake manifold, and a pneumatic conveyor. The frame has an enclosure with an entrance for receiving waste material. The set of overlapping scissor rolls includes a feed... | 11/29/2005 |
| 6923391 | Pulverizer The disclosed device is directed toward a pulverizer including a pulverizing chamber formed between a table, a cover, and side walls. The side walls are coupled between the table and the cover. At least three rotary plates are disposed in the table. Each of the rota... | 08/02/2005 |
| 6902126 | Hybrid turbine classifier A hybrid turbine classifier for a coal pulverizer includes a cone disposed within the separator body of the pulverizer. The cone extends downwardly from a base to a frustum which forms an opening for depositing coal particles on the grinding table of the pulverizer.... | 06/07/2005 |
| 6820829 | Method and apparatus for separating material An apparatus for sorting particles composed of a mixture of particles with differing physical and chemical characteristics. The apparatus includes a comminutor or a pulverizer for reducing the size of the particles. The apparatus includes a mechanism for separating ... | 11/23/2004 |
| 6789756 | Vortex mill for controlled milling of particulate solids An improved vortex mill for milling a substantially particulate solid material, which includes one or more working chambers. The mill also includes one or more working fluid inlets and one or more discharge ports. One or more working fluid inlets together with one o... | 09/14/2004 |
| 6786437 | Closed loop cyclonic mill, and method and apparatus for drying and fiberizing material A method and apparatus for comminuting and drying material utilizing a closed-loop cyclonic system including a cyclonic comminution chamber, and further incorporating heated or dried air for desiccation of the material, as well as reducing the air pressure of the sy... | 09/07/2004 |
| 6719610 | Method and device for grinding particulates A particulate grinding method and device applies different force fields to drive the grinding medium and the particulates move in different routes but collide only at a grinding area so that they are separated naturally without conventional screening mechanisms, suc... | 04/13/2004 |
| 6666394 | Milling installation In the production of meal-fine products by a milling process the milling material generated in a comminuting device is ordinarily separated at the desired grain size in a downstream sifter and the fine material (meal-fine product) obtained here is then se... | 12/23/2003 |
| 6644573 | Comminuting apparatus and pneumatic recirculation systems for comminuting apparatus A comminuting apparatus is provided which includes a frame, at least one drive motor, a set of overlapping scissor rolls and a recycle manifold. The frame has an enclosure with an entrance opening for receiving waste material. At least one drive motor is ... | 11/11/2003 |
| 6644570 | Downstream pneumatic recirculation comminuting apparatus A comminuting apparatus is provided having a frame, a set of overlapping scissor rolls, a shear outtake manifold, and a pneumatic conveyor. The frame has an enclosure with an entrance for receiving waste material. The set of overlapping scissor rolls is c... | 11/11/2003 |
| 6557790 | Circuit grinding apparatus with high-pressure roller mill and sifter In order to further develop a circuit grinding apparatus with a roller mill or roller press for material bed disintegration of granular material and with at least one integrated sifter, where the mill and the sifter are disposed within two stationary side... | 05/06/2003 |
| 6543709 | Gravity flow air classifying mill The invention relates to a classifying mill with a housing configured for containing a stream of particulate material. A particulate material feed inlet is associated with the housing for introducing the particulate material into the housing. A milling as... | 04/08/2003 |
| 6508420 | Method and device for two-stage classification of granular material Two-stage classification of a granular material, in particular a cement grinding feed, is accomplished in two classifiers connected in series in such a way that the separative behavior or the separative action and thus the particle-size distribution of th... | 01/21/2003 |
| 6491241 | Device for the dispersal and charging of fluidized powder Provided is, among other things, and together with associated methods, a powder feed comprising: a venturi comprising an external gas inlet, a gas outlet through which gas flows at a rate amplified over a gas flow rate into the external gas inlet, and an ... | 12/10/2002 |
| 6457659 | Roller press grinding plant A grinding plant comprising: a high-pressure roller press for crushing raw material into fragments; a static cascade sifter for shifting the fragments from the high-pressure roller press into fine fragments and coarse fragments, the coarse fragments being... | 10/01/2002 |
| 6446888 | Grinding apparatus with vertical static separators An improvement to the conventional grinding mill and separator designs which facilitates the use of larger diameter grinding surfaces and additional numbers of grinding rollers by equalizing the gas velocity around the grinding rollers and journal with th... | 09/10/2002 |
| 6443376 | Apparatus for pulverizing and drying particulate matter The invention relates a pulverizer equipped with a free air purging mechanical seal/classifier design that provides free air purging of the seal gap between the mechanical seal assembly and the classifier. The invention also provides a coarse particle ext... | 09/03/2002 |
| 6439486 | Method and apparatus for disposing of waste In a method for disposing of waste matter such as waste tire pieces by using first and second shredding members each having shredding blades, the waste matter is introduced into a space between the shredding blades of the first and second shredding member... | 08/27/2002 |
| 6415999 | Cutting mill A cutting mill has a cutting rotor and a rotatable sizing means, arranged together with the cutting rotor in a common housing.... | 07/09/2002 |
| 6415998 | Circuit grinding apparatus with high pressure roller mill and sifter In order to further develop a circuit grinding apparatus with roller mill or roller press for comminution of the material bed of granular material and with at least one integrated sifter, in which mill and sifters are arranged within two fixed side face w... | 07/09/2002 |
| 6398139 | Process for fluidized-bed jet milling, device for carrying out this process and unit with such a device for carrying out this process A process and device for fluidized-bed jet milling, in which solid particles to be milled, which are suspended in a flowing fluid, are disintegrated into particles of a smaller size by using at least one fluid jet induced to enter the fluidized bed with h... | 06/04/2002 |
| 6375103 | Mill for pulverizing and classifying particulate material A cost efficient single-drive particulate material pulverizing and classifying mill capable of operating at high efficiencies and able to conveniently produce selectively sized particles from a wide variety of materials during milling operation without re... | 04/23/2002 |
| 6357680 | Self-feeding comminuting apparatus having improved drive motor features A comminuting apparatus includes a frame, a set of overlapping scissor rolls, a first drive motor, and a second drive motor. The frame has an enclosure with an entrance opening for receiving waste material. The set of overlapping scissor rolls is carried ... | 03/19/2002 |
