All Comminuting Zones Of Loose Grinding Body Type Patents (Class 241/153)
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Patent number: 9664445Abstract: The invention relates to a tubular reactor with a rotating reactor chamber (9) for thermal treatment of biomass. It is characterized by the reactor chamber (9) being subdivided into zones by ring-shaped plates (10). These zones cause the particles to be retained in a particular area and thoroughly mixed there, i.e., the particles being treated are homogenized and the retention time also becomes more homogenous.Type: GrantFiled: August 3, 2012Date of Patent: May 30, 2017Assignee: Global Intelligent Fuel ABInventors: Klaus Trattner, Heinrich Pauli, Wolfgang Plienegger, Wolfgang Janisch
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Patent number: 9388073Abstract: A plant for producing cement, having a first stage for crushing raw material to form raw powder, a second stage for calcination and sintering of the raw powder to form cement clinker, a third stage for cooling the sintered cement clinker, and a fourth stage for crushing the sintered cement clinker to form cement. The first stage for crushing raw material to form raw powder and the fourth stage for crushing the sintered cement clinker to form cement are structurally combined. In this way, during servicing or repair of one crushing stage, the plant need not be shut down because, y variable circuitry switching, the crushing stages permit plant operation with reduced production output.Type: GrantFiled: January 4, 2012Date of Patent: July 12, 2016Assignee: KHD Humboldt Wedag GmbHInventor: Siegfried Strasser
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Patent number: 9314404Abstract: A drug compounding skid for sterile transfer of a compounded drug. The skid includes vessels configured to form a sterile seal of a drug contained therein. The skid may include a sterilization system, a drug transfer system, and a cleaning system. The skid may be used to perform sterile transfer of a compounded drug from the vessels to a holding tank. A skid may include a plurality of drug compounding tanks with agitation devices mounted thereto.Type: GrantFiled: March 21, 2013Date of Patent: April 19, 2016Assignee: Allergan, Inc.Inventors: Jose Gonzalez-Miranda, Brad Borgwald, Thomas Buckley, Barry Hart
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Patent number: 9278357Abstract: An agitator ball mill for the fine-grinding or dispersion of a grinding material, including a container the inner wall of which delimits a cylindrical or conical, vertically arranged grinding chamber, a grinding material inlet for feeding the grinding material into the grinding chamber, a grinding body inlet for introducing grinding bodies into the grinding chamber, and a grinding material outlet for discharging the ground or dispersed grinding material from the grinding chamber, and a rotatably driven agitator having at least one agitator element and extending in the axial direction in the grinding chamber.Type: GrantFiled: September 9, 2013Date of Patent: March 8, 2016Assignee: Willy A. Bachofen AGInventors: Pascal Hug, Frank Ronald Lang, Berndt Joost
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Patent number: 8733239Abstract: A food processor includes a base, a container having a side wall and an open end including a rim, and a lid for engaging the open end of the container in an operating position and a storage position. The lid has a top wall with a first and second principal surface, an annular ledge with a first and second side, and a food chute extending from the first principal surface generally parallel to a longitudinal axis of the top wall. The food chute has a length and extends away from the container with the second side of the annular ledge contacting the rim of the container when the lid is in the operating position. When the lid is in the storage position, the food chute extends into an interior of the container with the first side of the annular ledge contacting the rim of the container.Type: GrantFiled: July 16, 2009Date of Patent: May 27, 2014Assignee: Hamilton Beach Brands, Inc.Inventor: Michael W. Allen
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Publication number: 20140096705Abstract: A process for treating fly ash to activate the fly ash so that it may be used as a substitute for Portland cement, with the process including the use of a specialized rotary mill having variably sized and shaped media to increase the surface area of one fly ash component by grinding, avoiding milling a second fly ash component, while roughing up the surface of the second component to increase its surface area.Type: ApplicationFiled: October 9, 2012Publication date: April 10, 2014Inventor: Clinton Wesley Pike, SR.
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Publication number: 20100320300Abstract: Milling apparatus suitable for mechano-chemical breakdown of contaminated media reliant upon housed ball mill units each able to be cradle mounted to receive a rotational drive of a shaft and to feed material downwardly from housing to housing.Type: ApplicationFiled: February 12, 2010Publication date: December 23, 2010Inventors: Bryan Geoffrey Black, Owen Ross Williams
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Patent number: 7823810Abstract: A method and a device for producing and/or conditioning powdered material. The aim of the invention is to provide a method and an associated device which are used for producing and/or conditioning powdered material in a spouted bed comprising inert particles and in which a dry, fine powder having a very small particle diameter is produced at a low cost and at adequately large quantities in a continuous operation. This aim is achieved by a method in which the material is treated in several stages in a spouted bed comprising inert particles. In the method, the powdered material that is preprocessed in a first spouted bed and is separated from the larger material particles in an integrated dust collector is fed to a superimposed second spouted bed as a material-gas flow along with the gas flow discharged from the first spouted bed in order to be further reduced in size and be conditioned.Type: GrantFiled: September 1, 2007Date of Patent: November 2, 2010Assignee: Glatt Ingenieurtechnik GmbHInventors: Karlheinz Rumpler, Michael Jacob, Frank Ohlendorf, Bernhard Wand, Reinhard Bober
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Patent number: 7681818Abstract: A system, which may be used to perform simultaneous grinding and intimate mixing of edible fat-based slurries or emulsions, may include a cylindrical drum having a central longitudinal axis and a curved inner surface and mounted on springs, and a motor and tuned mass coupled to the cylindrical drum to vibrate the cylindrical drum about a center of vibration that is offset from the central longitudinal axis of the cylindrical drum. The system includes at least one pair of partition plates disposed at an angle to the longitudinal axis of the cylindrical drum to divide the cylindrical drum into at least two process zones, the partition plates of the at least one pair having matching apertures and moveable relative to each other between alignment and misalignment. The system may be used, for example, in chocolate manufacture.Type: GrantFiled: November 1, 2006Date of Patent: March 23, 2010Assignee: General Kinematics CorporationInventors: Roy Peterson, Stephen E. Beavers, Jonathan Hipps, Peter T. Kashulines, Jr., Michael Hill, Barry D. Glazier, Kenneth G. Weaber, Jr., Ronald P. Layton, Jr., David J. Pontzer
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Publication number: 20080128575Abstract: A pulveriser mill has a grinding set (2) supported by a support table (4), the support table having on its underside supporting parts 8?, 10?, 12?. By such means the working life of the support table may be extended.Type: ApplicationFiled: March 17, 2005Publication date: June 5, 2008Inventor: William Graham Bell
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Patent number: 7216822Abstract: An agitator mill comprises an annular cylindrical exterior grinding chamber which is defined by an inner wall of a grinding receptacle and an outer wall of a rotor; and an interior grinding chamber which is defined by an inner wall of the rotor and an outer casing of an interior stator. The grinding chambers are interconnected by a deflection chamber. g<h applies to the radial gap width g of the exterior grinding chamber in relation to the radial gap width h of the interior grinding chamber.Type: GrantFiled: July 1, 2005Date of Patent: May 15, 2007Assignee: Bühler AGInventors: Norbert Stehr, Philipp Schmitt
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Patent number: 5938130Abstract: An asphalt based material recycling system and method is used to recycle asphalt materials, such as asphalt shingles and tar paper that include granules, fibers or other particles. The asphalt material is simultaneously heated and milled in a heated milling apparatus, such as a heated ball mill, to reduce the asphalt material including granules to a fine mesh in suspension in liquid asphalt. Excess moisture is removed from the asphalt material being recycled by continuously venting the heated milling apparatus. The heated milling apparatus preferably includes a rotatable milling vessel rotated at an acute angle with respect to the horizontal plane and having an opening that provides continuous venting. The shape of the milling vessel allows the liquid level inside the milling vessel to have a liquid head above the outlet region of the milling vessel, for facilitating milling.Type: GrantFiled: June 24, 1998Date of Patent: August 17, 1999Inventor: Thomas J. Zickell
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Patent number: 5551489Abstract: A method and system for improving the flow properties of finely divided powders is provided. The method includes (a) agglomerating the powder by passing it through a screw feeder; and (b) spheronizing the agglomerates. The method preferably further includes (c) sizing the spheronized agglomerates. Spheronization is preferably accomplished by tumbling the agglomerates in a tilted rotating container.Type: GrantFiled: October 3, 1994Date of Patent: September 3, 1996Assignee: Astra AktiebolagInventors: Eva A. C. Trofast, Erik J. Falk
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Patent number: 5251830Abstract: A tube mill comprises a coarse grinding compartment and two or three independent fine grinding compartments. Material fed into the mill is first ground by a coarse grinding compartment and then shunted into two or three portions which are conveyed into each corresponding fine grinding compartment. The mill of the invention has resolved the problems of overgrinding and unmatched grinding capability in each compartment of conventional tube mill, and increase output and decrease power consumption greately, so as to become a high eficiency mill. Further, the tube mill of the invention has the advantages of simple structure, ease for operation and low investment. It can be adapted for both reformation of prior tube mill and construction of new tube mill.Type: GrantFiled: November 12, 1991Date of Patent: October 12, 1993Assignee: Hefei Cement Research & Design Institute of State Administration of Building MaterialsInventor: Yucan Jiang
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Patent number: 5174512Abstract: A continuous micronizing mill for granular material consisting of a rotary drum with a high length/diameter ratio, divided by separator baffles into several grinding chambers in which grinding loads having a progressively decreasing body size are placed and in which the ratios of granular material to grinding load are different.Type: GrantFiled: June 18, 1991Date of Patent: December 29, 1992Assignee: Snamprogetti S.p.A.Inventor: Tarcisio Orlandi
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Patent number: 5114083Abstract: The present invention relates to a method and apparatus for pulverizing a material to produce a fine powdery material such as silica powder as a material for a filler for sealing semiconductors. It has a shell and a screw shaft mounted in the shell. A disk having an inverted conical bottom surface is coaxially secured to the bottom of the screw shaft. The disk serves to protect the blade of the screw shaft from wear. Also owing to the inverted conical bottom surface, a centripetal force acts on the screw shaft while in rotation, thus preventing it from running out of true. By providing a plurality of screw shafts in the shell, the fluid in the shell flows in a complicated manner, thus increasing the pulverizing efficiency. A partitioning plate formed with a hole in the upper or lower part thereof may be provided between the adjacent screw shafts to minimize the possibility of shortcircuiting of the material from the inlet of the shell to its outlet.Type: GrantFiled: February 12, 1990Date of Patent: May 19, 1992Assignee: Kubota, Ltd.Inventors: Iwao Ikebuchi, Yoshitaka Ihara, Hisashi Takei, Syozo Yamada, Mamoru Nakano, Akira Ganse
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Patent number: 5021787Abstract: Digital-analog converter intended to convert into analog signals digital signals formed of sign bits, of step bits and of segment bits, particularly signals coded by data compression according to law A, the said converter comprising a sign generator (4), intended to receive the sign bit of the said digital signal, a step generator (7), connected to the output of the sign generator and intended to receive the step bits of the said digital signal and to a segment generator (8) connected to the step generator and intended to receive the segment bits of the said digital signal, characterized in that the segment generator (8) is connected to the sign generator by means of the step generator (7) only.Type: GrantFiled: May 3, 1990Date of Patent: June 4, 1991Assignee: Texas Instruments IncorporatedInventor: Yves Leduc
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Patent number: 4949907Abstract: A ball-tube mill in which an inclined wall dividing the mill into coarse and fine grinding chambers occupied by grinding bodies has through holes for the passage of the material being ground provided in a portion of contact of the surface of the inclined wall with the grinding bodies present in the coarse grinding chamber. The through holes have a length much greater than their width with their elongated side running in parallel with an outer contour of the inclined wall.Type: GrantFiled: September 6, 1989Date of Patent: August 21, 1990Assignee: Belgorosky Tekhnologichesky Institut, Stroitelnykh Material OV Imeni, I.A. GrishmanovaInventors: Vasily S. Bogdanov, Nikolai S. Bogdanov, Nikolai D. Vorobiev, Alexandr D. Netesin
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Patent number: 4511092Abstract: A milling apparatus comprises a container with a plate extending across the container and movable relative thereto by an oscillator which communicates oscillatory movement to the plate at right angles to its plane. The oscillation can be tuned so that the natural frequency of oscillation of the plate and communication means is the same as or a whole number multiple of the oscillation frequency of the oscillator. The oscillator comprises a rotatable eccentric member driven to provide mechanical oscillations. The plate within the container acts to agitate grinding elements provided within the container. The container can either be used in a batch mode by moving the plate from an inlet to an outlet or in a continuous flow mode in which the comminuted material passes the plate from an inlet to an outlet.Type: GrantFiled: April 27, 1983Date of Patent: April 16, 1985Inventors: Henry North, William R. Fauconnier
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Patent number: 4369926Abstract: The invention relates to a method of and apparatus for dry grinding a granular material in a grinding tube mill (1) having a final grinding compartment (2) and one or more preceding grinding compartments (3) containing grinding bodies. The material, after having passed through the preceding compartment or compartments (3), is discharged through openings (6) in the mill (1) and is divided into a fine and a coarse fraction in a separator (9). The coarse fraction is returned to the preceding compartment or compartments (3), and the fine fraction is fed to the final compartment (2). The ground material is discharged by flowing over a dam ring (12) from the final compartment (2). Any grinding bodies carried with the overflow are separated by a sieving diaphragm (13) from the material and returned to the final compartment (2). The invention also relates to the granular material ground according to the method of the invention.Type: GrantFiled: December 28, 1979Date of Patent: January 25, 1983Assignee: F. L. Smidth & Co.Inventors: Ole S. Rasmussen, Peter Lund
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Patent number: 4291503Abstract: A barrel apparatus for use in treating workpieces with grinding media, comprising a novel rotary barrel provided on its inner peripheral wall with a spiral flight extending lengthwise of the barrel and one or more ancillary flights extending straight or in an extremely modulated spiral form lengthwise of said barrel and intersecting the spirals of said first spiral flight, thereby accelerating the flow of the contents in the barrel to improve grinding efficiency, and further, permitting smooth delivery of the contents even when a small amount of the contents is present in the barrel.Type: GrantFiled: September 5, 1979Date of Patent: September 29, 1981Inventor: Yasunaga Higashi
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Patent number: 4243182Abstract: The disclosure is directed to a multiple zone liner system for the cylindrical shell of a ball mill. The liner system comprises a plurality of liner sections which are constructed for mounting on the inner shell surface of the mill in sequential relation along its rotational axis. Each liner section is formed with a plurality of elevated ridges disposed in substantial alignment with the shell access, and which are circumferentially spaced therearound to define a comminuting surface. Each ridge defines a lifting surface that is disposed at a predetermined angle relative to a radius of the shell, and each ridge has a predetermined lifting dimension. The number of ridges of each liner section increases from section to section from the inlet to the outlet of the mill. The angle of the lifting surfaces of the ridges also increases from section to section toward the mill outlet. The lifting dimension of the ridges decreases from section to section from the mill inlet to the outlet.Type: GrantFiled: March 29, 1979Date of Patent: January 6, 1981Assignee: Minneapolis Electric Steel Castings CompanyInventor: Charles B. Dugger, Jr.
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Patent number: 4134553Abstract: Grinding apparatus comprising a container, means for generating a magnetic field within the container, and means for varying the magnetic field to cause relative movement between material to be ground and grinding medium in the container, at least one of the grinding medium and material to be ground being magnetic material, and the container being substantially of non-magnetic material, such as rubber or plastics.Type: GrantFiled: May 27, 1977Date of Patent: January 16, 1979Assignee: I.O.S. Industria Ossidi Sinterizzati S.r.l.Inventors: Eberhart Steinort, Armando Lazzari, Alfredo Cartoceti
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Patent number: 4098465Abstract: A wet grinding device having a container for receiving therein products to be ground as well as grinding balls, the container being equipped with a mixer, a delivery device for feeding the products to be ground into the container, a discharge outlet for the broken-up products, as well as a drive device for the mixer. The wet grinding device is characterized by an operating chamber divided into a plurality of grinding zones of increasing volume, the operating chamber including a mixer shaft therethrough, the latter being rotatably horizontally supported by the container. The shaft is provided with blades which have a diameter which is proportional to the diameter of the respective grinding zones.Type: GrantFiled: April 8, 1977Date of Patent: July 4, 1978Inventors: Karl Heinz Meller, Jacques Brenot
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Patent number: 3964717Abstract: A tube mill for dry grinding of a granular material, the mill being formed with one or more grinding compartments charged with grinding bodies and, downstream of the first or sole grinding compartment, a relatively short compartment bounded downstream by a dam ring having a central opening and upstream by a sieving diaphragm for holding back the grinding bodies, but permitting fluidized ground material to flow from the upstream grinding compartment to the short compartment and vice versa, the short compartment being adapted to serve as a reservoir of fluidized ground material.Type: GrantFiled: September 5, 1974Date of Patent: June 22, 1976Assignee: F. L. Smidth & Co.Inventor: Ib Hansen
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Patent number: 3960331Abstract: Three sandmill processing vessels are mounted on a central supporting column. The rotors in the sandmill vessels are separately driven by hydraulic motors mounted on the upper portion of the central column. Separate pumps driven by hydraulic motors are mounted below the vessels for pumping the material to be processed through the vessels. An electric motor for driving the hydraulic motors may be remotely positioned to eliminate explosion hazards from electrical sparks. Indicator lights included in safety control circuitry for the electric motor are energized to indicate the malfunction if the motor is automatically deenergized.Type: GrantFiled: December 4, 1974Date of Patent: June 1, 1976Assignee: Morehouse, Industries, Inc.Inventor: Edward J. Szkaradek