Both Cooperating Surfaces Rotate (e.g., Roll Mills) Patents (Class 241/227)
  • Patent number: 11123744
    Abstract: An apparatus for comminuting solid waste material is provided an includes a casing defining a comminution chamber and being open on opposite sides thereof for permitting the flow of liquid therethrough and a comminutor assembly including cooperating substantially parallel first and second shredding stacks. The comminutor assembly includes first and second parallel shafts rotabably mounted, each including a plurality of cutting elements mounted on said first shaft in interspaced relationship with a plurality of second cutting elements mounted on said second shaft, the cutting elements being positioned between and separated in an axial direction by spacers which are coplanar with the cutting elements of the adjacent stack such that a cutting element from one stack and a spacer from the other stack form a pair of interactive shredding members, wherein the at least one cutting tooth has a plurality of serrations, a tapered profile or a bi-level profile.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: September 21, 2021
    Inventors: Rob Sabol, Corey Glauberman, Daniel McHugh, Todd Nydam, John Schatzlein
  • Patent number: 10399081
    Abstract: The present invention relates to a crushing roll for a roll-type crusher has a shaft with at least one groove extending in the axial direction on its lateral surface, to receive formed elements. The formed elements serve to retain the crushing shells, for which purpose the formed elements form a form-interlockingly engaging combination with the groove in the shaft, in the radial direction. A “form-interlockingly engaging combination in the radial direction” is understood here to signify means of blocking of movement of the formed elements in the radial direction of the shaft. In this way, it is possible to anchor the crushing shells in the grooves by means of the formed elements.
    Type: Grant
    Filed: April 17, 2016
    Date of Patent: September 3, 2019
    Assignee: TAKRAF GmbH
    Inventors: Burkhard Petack, Marko Schmidt, Karsten Ebenhan, Patrick Neufeldt
  • Publication number: 20150102148
    Abstract: A device for processing free-flowing input material, having a machine frame formed by longitudinal and transverse walls, in which a rolling mill having at least one pair of oppositely rotating rollers is disposed axially parallel next to one another so as to maintain a radial roller gap and are rotatably mounted in the transverse walls. The input material is processed upon passage through the roller gap. The region located upstream of the roller gap is used to feed the input material, and the downstream region is used to discharge the material. In order to minimize the disruptions caused by wear and thermal load, it is provided that the upstream region for feeding comprises a feed chute having longitudinal chute walls and end chute walls, the end chute walls each disposed with axial separation between the transverse walls of the machine frame in order to form an open space.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 16, 2015
    Inventor: Hartmut PALLMANN
  • Publication number: 20150083839
    Abstract: The invention relates to a press roll (1) for a roll press, in particular for comminuting highly abrasive materials, comprising a roll body (2). Hard bodies as exchangeable edge protection elements (5) are removably fixed to one or both roll edges of the roll body (2). The edge protection elements (5) are completely or partly made of a metal matrix composite (MMC) material.
    Type: Application
    Filed: March 6, 2013
    Publication date: March 26, 2015
    Inventors: Eggert DE WELDIGE, Andreas PACKEINSEN, Alex HOEFTER
  • Publication number: 20150014455
    Abstract: The invention relates to a vertical roller mill and a method for operating a vertical roller mill, wherein the grinding assemblies thereof, consisting of a grinding table and at least one grinding roller, interact such that material to be ground is comminuted in the grinding bed between the grinding table and the at least one grinding roller, wherein at least one grinding assembly is driven and at least one grinding assembly is pulled, and the pulled grinding assembly is braked in order to increase the flow of energy through the grinding bed between the grinding table and the at least one grinding roller.
    Type: Application
    Filed: January 22, 2013
    Publication date: January 15, 2015
    Inventor: Markus Berger
  • Patent number: 8833686
    Abstract: A roller mill for comminuting brittle grinding stock comprises at least one grinding roller constructed as a loose roller and rotatable about an axis and interacting with a counter-surface such that grinding stock is comminuted between the grinding roller and counter-surface. Horizontally slidable bearing blocks bear the grinding roller and are guided in a frame rotatably about a vertical bearing axis. A pressing device applies an adjustable grinding pressure to the grinding roller via the bearing blocks. At least two resilient compensation elements are associated with each bearing block in order to compensate a skewed position and/or deflection of the grinding roller. The compensation elements are arranged between the frame and the bearing blocks, and, in the plan view of the roller mill, are arranged tangentially to a circle around the vertical bearing axis or constructed in a circular arc around the vertical bearing axis.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: September 16, 2014
    Assignee: ThyssenKrupp Polysius AG
    Inventors: Thomas Rüther, Alexander Peters, Ludwig Könning, Nils Hörster, Reinhard Giesemann
  • Publication number: 20140239100
    Abstract: A roller mill for crushing brittle material has two grinding rollers forming a grinding gap, and provides a delivery chute for feeding the material to the grinding gap. In the delivery chute at least one distributor device is arranged above a middle region of the grinding gap and extends above the grinding gap transversely to the longitudinal extent of the grinding gap and covers from 5 to 70% of the cross-section of the delivery chute. The material is delivered to the delivery chute and is crushed in the grinding gap, wherein the material is introduced into the delivery chute or is deflected in the delivery chute in such a manner that, based on the longitudinal extent of the grinding gap, coarser material accumulates in a middle region of the grinding gap than in the edge regions.
    Type: Application
    Filed: September 21, 2012
    Publication date: August 28, 2014
    Applicant: Thyssenkrupp Industrial Solutions GmbH
    Inventors: Heinicke Felix, Johann Knecht, Partsch Wolfgang, Johann Asneimer
  • Publication number: 20140231558
    Abstract: The invention relates to a shredder/document shredder for sheet-shaped material, such as paper and material of the like or similar data storage media, having a thickness sensor which protrudes at least partially into a receiving slot. According to the invention, the thickness sensor does not change its position if too much material to be shredded (for example, paper) passes into the receiving slot, but rather pivots about its rotational axis as a result of the friction with the material. A switch is actuated by way of the pivoting movement, as a result of which the electric drive of the shredder is interrupted.
    Type: Application
    Filed: January 23, 2014
    Publication date: August 21, 2014
    Inventor: Hermann Schwelling
  • Patent number: 8739962
    Abstract: A solids supply systems having a solids deaeration zone and a solids pump zone, and to methods for supplying the solids e.g., pulverized dry coal, to an application, e.g., gasification process. The solids deaeration zone includes a roller system containing a plurality of porous roller assemblies, or a belt system containing a plurality of porous belt assemblies. The solids deaeration zone is operable to deaerate and convey the solids to the solids pump zone. In the solids deaeration zone, the solids become sufficiently compacted prior to and upon entry into the solids pump zone to be effectively conveyed through the solids pump zone.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: June 3, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: James R. Bielenberg, Michael Raterman, Rathna P. Davuluri, John W. Fulton, Steven W. Meier
  • Publication number: 20140084092
    Abstract: The invention relates to a device (1) for comminuting particles in a liquid material, in particular a powder or a semi-liquid for producing a chocolate mass. Said device (1) comprises at least one pair of rollers (2, 3), for which at least one process parameter, in particular the roller contact pressure and/or the rotational speed of one of the rollers (2, 3) can be adjusted. The invention also relates to a device (1) comprising a filling level meter (11) for measuring the height of the filling level (5) of the liquid material in the roller gap or in a roller trough (4) arranged upstream of the rollers. A control unit (11) modifies at least one process parameter in accordance with the measured height of the filling level (5) of the liquid material in the roller gap or in the roller trough (4). The invention also relates to a method for comminuting particles in a liquid material and to a method for calibrating a control unit (10).
    Type: Application
    Filed: May 14, 2012
    Publication date: March 27, 2014
    Applicant: Bulher AG
    Inventors: Peter Braun, Stefan Gerber, Frank Barthel, Bernd Schmidt, Manuel Höhener
  • Publication number: 20130306767
    Abstract: A pre-grinder or pre-shredder apparatus, essentially made up of at least one drive unit (1) including a hydraulically or electrically driven motor (2), a reduction gear (3) and at least one shredding element (4) connected thereto and mounted on a frame (5), a wall, a feeder chute or any other mounting. The reduction gear (3) of the drive unit (1) of the pre-grinder or pre-shredder forms an element for attaching and supporting at least one shredder element (4) and is made up of a stationary portion (3?), attached directly to the frame (5) of the pre-grinder or pre-shredder or on a mounting or a wall of the latter, and by a mobile portion (3?), the shredder element (4) being inserted on the mobile portion of the reduction gear. The apparatus is useful in treating materials from any source, in particular by shredding using grinders, hammer mills or similar devices.
    Type: Application
    Filed: January 12, 2011
    Publication date: November 21, 2013
    Inventors: Arnaud Becker, Caroline Becker, Catherine Becker
  • Publication number: 20130175372
    Abstract: The present invention discloses an apparatus for trimming plants, in particular, buds and flowers, to remove unwanted plant material. A typical application would be to process a plant to leave only trimmed buds and flowers for use in potpourri, fragrant sashes, or as a prelude to further processing of essential oils. The invention enables faster and safer production of plant material than prior plant processing machines. The apparatus employs an original combination of a slotted metal drum and a lawn mower type cutting reel that are rotated in the same direction, but at different speeds, to create a cutting interface that shears the unwanted plant material off and then collect this debris though a novel vacuum manifold into a waste collection device. The cutting interface between the slotted drum and the cutting reel is adjustable to keep the distance between the two between 0.002 and 0.006 inches for a very sharp and clean cut.
    Type: Application
    Filed: February 28, 2013
    Publication date: July 11, 2013
  • Patent number: 8430722
    Abstract: The invention relates to an apparatus for surface processing or surface treatment by means of dry ice granulate, with a reservoir for receiving a dry ice medium, in particular dry ice pellets, an inlet for the feed of a propellant medium, an outlet for the supply of a mixture of propellant medium and dry ice granulate to a blast gun, and an outflow chamber lying therebetween, there being arranged in the path between the reservoir and the outflow chamber a grinding mechanism, which is formed so as to comminute the dry ice medium to dry ice granulate with a particle size in a prescribed range, and a transport roll (4) being arranged between the grinding mechanism (3) and the outflow chamber (59), the transport roll (4) being operable with a variable speed so as to vary the quantity of the particles of the dry ice granulate per unit time. Furthermore, the invention relates to a corresponding method and the use of the method.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: April 30, 2013
    Assignee: TQ-Systems GmbH
    Inventors: Niels Raeder, Rosa Rolstein
  • Publication number: 20130099031
    Abstract: An apparatus for fracturing in which: a fracturing tooth is formed so that a base-end portion has a larger diameter than that of a top-end portion, and a tapered part is formed at the base-end portion so as to expand from the top toward the base; a fixing cover is formed along a longitudinal direction of rolls; in the fixing cover, fixing holes for fracturing teeth are formed along the longitudinal direction so that the fracturing tooth is inserted therein; each of the fixing holes has a slope in which the tapered part is in contact at a surface; a fracturing teeth unit is fixed to the roll in a state in which the top-end portion of the fracturing tooth is protruded from the fixing hole radially-outwardly of the roll and the tapered part is wedged between the slope of the fixing hole and the roll.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 25, 2013
  • Publication number: 20130082129
    Abstract: The invention relates to a transportable roller mill for reducing solids with a mill housing, a grinding pan, two grinding rollers, two swing lever units, a grinding pan drive and a gear for the grinding pan. It is further provided that the roller mil is arranged for transport and operation in a container. The swing lever units are respectively connected to the mill housing and supports extend from the connection regions of the swing lever units to the bottom of the container. Vibration dampers are provided between the container bottom and the supports. The invention further relates to a grinding installation.
    Type: Application
    Filed: November 22, 2010
    Publication date: April 4, 2013
    Applicant: LOESCH GMBH
    Inventors: Matthias Authenrieth, Christian Barczus, Joerg Bettenworth, Nigel Hendy, Wilhelm Kulagin, Holger Wulfert
  • Publication number: 20130008989
    Abstract: In this roller mill (3) with a vertical axis (1), the grinding rollers (5) are mounted via the grinding roller shafts (6) in bearing housings (7) which are equipped with rolling bearings and which are fastened outside the roller mill housing on concrete foundations (9). Between the bearing housings (7) of the grinding roller bearing arrangement and the concrete foundations (9) are situated so-called scissor lift tables (8) which, by means of an integrated hydropneumatic suspension, press the grinding rollers inside the roller mill housing onto the material for grinding situated on the grinding plate (3) and carry out the grinding process. Moreover, the scissor lift tables (8) have the function of stabilizing the grinding rollers (3) against tangential forces and of allowing only a pure vertical movement for the grinding rollers. This means that a tilting of the grinding rollers is effectively prevented by the scissor lift tables.
    Type: Application
    Filed: February 22, 2011
    Publication date: January 10, 2013
    Applicant: LOESCHE GMBH
    Inventor: Otto Heinemann
  • Publication number: 20120256030
    Abstract: A wearable surface for a device configured for material comminution wherein the wearable surface is comprised of a first metal structure attached to at least one insert via a deformation of a portion of the first metal structure by a transfer of force caused by igniting at least one explosive material, the inserts being harder than the first metal structure wherein the wear surface is sized and configured to support or retain a material to be impacted and crushed by the crushing body. The wearable surface may be, for example, a semi-autogenous layer of a roller or may be a wearable surface of a crushing body of a crushing device configured to impact, crush, or grind material such as rock, minerals, ore or agglomerated material. Devices that include such a wearable surface are also disclosed.
    Type: Application
    Filed: May 21, 2012
    Publication date: October 11, 2012
    Inventors: Ivo Botto, Kranthi Prakash Peddeti, Curtis Erwin Prothe
  • Publication number: 20120111982
    Abstract: A roller mill for comminuting brittle grinding stock comprises at least one grinding roller constructed as a loose roller and rotatable about an axis and interacting with a counter-surface such that grinding stock is comminuted between the grinding roller and counter-surface. Horizontally slidable bearing blocks bear the grinding roller and are guided in a frame rotatably about a vertical bearing axis. A pressing device applies an adjustable grinding pressure to the grinding roller via the bearing blocks. At least two resilient compensation elements are associated with each bearing block in order to compensate a skewed position and/or deflection of the grinding roller. The compensation elements are arranged between the frame and the bearing blocks, and, in the plan view of the roller mill, are arranged tangentially to a circle around the vertical bearing axis or constructed in a circular arc around the vertical bearing axis.
    Type: Application
    Filed: October 10, 2011
    Publication date: May 10, 2012
    Inventors: Thomas Rüther, Alexander Peters, Ludwig Könning, Nils Hörster, Reinhard Giesemann
  • Publication number: 20120107475
    Abstract: Processes and systems for commercial scale milling of wheat are disclosed. Processes include multiple tempering steps of controlled duration and cubing of the wheat kernel between two tempering steps. The cubing between the tempering breaks the kernels, or stresses the kernels, in a manner that enables a high degree of separation of the bran and endosperm early in the flour production process.
    Type: Application
    Filed: May 13, 2010
    Publication date: May 3, 2012
    Inventor: Emil Kolb
  • Publication number: 20120056027
    Abstract: A device for comminuting material, such as a roller press, includes rollers positioned adjacent to each other and forming a nip therebetween. One of the rollers may be moveable via an actuator, such as a cylinder or hydraulic cylinder. One or more first accumulators may be attached to the actuator so that fluid is moveable from the actuator to the one or more first accumulators when the rollers are rotated to comminute material passing through the nip. One or more second accumulators may be connected to the actuator as well so that fluid from the actuator may move to the one or more second accumulators when an uncrushable element passes through the nip. Preferably, the one or more second accumulators are configured such that fluid does not pass from the actuator to the one or more second accumulators unless an uncrushable element passes through the nip.
    Type: Application
    Filed: September 2, 2010
    Publication date: March 8, 2012
    Applicant: FLSmidth A/S
    Inventor: Jason Steven Euculano
  • Publication number: 20120048976
    Abstract: The present invention provides a pressure roller for use in semi-autogenous comminution of maters. The roller has an outer face (11) accommodating a set of wear resistance inserts (13) in a spaced array over the outer face. The inserts are embedded in the surface of the roller and extend into an outer section of the roller. Each insert is spaced inwardly from or is flush with the outer face of the roller.
    Type: Application
    Filed: April 20, 2010
    Publication date: March 1, 2012
    Inventors: Erich John Hofmann, Karl Peter Steiner
  • Publication number: 20110240779
    Abstract: The roller mill according to the invention substantially comprises at least one grinding roller and a grinding table, the grinding table having a grinding table inner space which is open in a downward direction, at least one grinding roller drive system for driving the grinding roller and a grinding table drive system for driving the grinding table. The grinding table drive system further has a gearless direct drive which is arranged in the grinding table inner space.
    Type: Application
    Filed: March 4, 2010
    Publication date: October 6, 2011
    Inventors: Benjamin Berndzen, Markus Berger, Guido Scholz, Franz-Josef Zurhove
  • Publication number: 20110240780
    Abstract: Bale opener for use in a feeding line of a biomass energy plant, the bale opener (1) comprising at least two disintegration members (2), wherein each disintegration member (2) is rotatable around a respective rotation axis (5) and in the direction of that rotation axis (5) has a first end (3) and a second end (4), an inlet (17) for feeding bales (28) in a feeding direction (33) to the disintegration members (2), an outlet (18) for discharging loosened bale material from the disintegration members (2), a drive system (6) being operable to drive the disintegration members (2) to rotate around their respective rotation axis (5), wherein each disintegration member (2) is provided with a plurality of blades (8) that are radially disposed in a mill-wheel arrangement, the blades (8) extending outwardly from a radially inner edge (9) to a radially outer edge (10) and from a first edge (11) at the first end (3) of the disintegration member (2) to a second edge (12) in a direction towards the second end (4) of the disi
    Type: Application
    Filed: December 11, 2009
    Publication date: October 6, 2011
    Inventor: Jens Jørgen Svendsen
  • Publication number: 20110186661
    Abstract: The apparatus according to the invention relates to a grinding arrangement (1) for producing flour from cereal, the latter in particular being bread wheat, durum wheat, maize or buck wheat. The grinding arrangement is characterized by at least one grinding mechanism (2) which is designed in particular as a stock-bed roller mill (16). The grinding mechanism has at least one feed opening (3) and at least one dispensing opening (4). The grinding arrangement comprises at least one separating stage (5) for separating ground products into finer ground product and coarser ground product, and a return arrangement (8) for returning at least some of the coarser ground product into the feed opening of the grinding mechanism.
    Type: Application
    Filed: July 2, 2009
    Publication date: August 4, 2011
    Applicant: BÜHLER AG
    Inventors: Arturo Bohm, Kurt Grauer, Urs Dübendorfer
  • Publication number: 20110121116
    Abstract: The roller mill according to the invention substantially comprises a mill housing which defines a grinding chamber, a grinding table which can rotate in the grinding chamber and at least one rotatable grinding roller which is in rolling engagement with the grinding table. A drive which is associated with the grinding roller and which has at least one gearing mechanism is further provided, at least a portion of the gearing mechanism being arranged in the grinding chamber in the region of the grinding roller and being in the form of an epicyclic gear system.
    Type: Application
    Filed: August 24, 2009
    Publication date: May 26, 2011
    Inventors: Guido Scholz, Pedro Guerrero Palma, Heiko Fornefeld, Ludwig Könning
  • Publication number: 20110089277
    Abstract: A compact manual shredder includes : a housing, being a column type tube body, constituted by upper and lower shells covered with each other, the upper shell being disposed with a paper entrance, the lower shell being disposed with a paper outlet and a pair of interlaced and side-by-side fragmentation cutters being configured inside the housing; and a transmission device, having a rotating unit disposed on one end of said housing and a gear train, two ends thereof being respectively coupled to the cutter pair and the rotating unit. Whereby, the rotating unit of the transmission device drives the gear train to rotate, and further drives the cutters to cut paper into fragments.
    Type: Application
    Filed: March 30, 2010
    Publication date: April 21, 2011
    Inventors: Hsuan-Yu Chao, Mei-Mei Tsai
  • Publication number: 20100243778
    Abstract: A mobile shredder has a shredder mounted in a truck box in combination with a vibratory hopper. The vibratory hopper is open on one side and opens into a fixed hopper. The fixed hopper is mounted on the shredder and is shaped to direct material to be shredded into the shredder. The vibratory hopper and the fixed hopper are located immediately adjacent to one another, but slightly apart from one another, so that vibration of the vibratory hopper does not cause vibration of the fixed hopper.
    Type: Application
    Filed: March 27, 2009
    Publication date: September 30, 2010
  • Patent number: 7758839
    Abstract: Method for producing silicon which is suitable as a starting material for producing a silicon melt for the fabrication of silicon blocks or silicon crystals, comprising the following steps: introducing a gaseous mixture of monosilane and hydrogen into a reactor, thermal degrading the gaseous mixture for forming silicon powder, separating the formed silicon powder produced from the gaseous mixture, and mechanical compacting the separated silicon powder with compacting rollers which having a roller jacket consisting of a ceramic material selected from graphite, glass and silicon nitride.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: July 20, 2010
    Assignee: Joint Solar Silicon GmbH & Co. KG
    Inventors: Peter Adler, Andreas Gölz, Holger Kirchner, Armin Müller, Torsten Sill, Raymund Sonnenschein
  • Publication number: 20100176231
    Abstract: This specification discloses a package-type break-preventing device for rotary shafts of the shredder. It consists of two bent boards, each of which has a horizontal upper board, a vertical side board, a horizontal lower board, and a vertical base. When the two boards are connected and fixed on the machine frame and tail frame, the rotary shafts and stripper are enclosed within the space formed by the two boards. The vertical side board and the horizontal lower board directly urge against the stripper, providing a supporting effect on the rotary shafts. The rotary shafts therefore do not break under an external force due to the supporting force. This achieves the goal of preventing the rotary shafts from deformation under an external force.
    Type: Application
    Filed: January 14, 2009
    Publication date: July 15, 2010
    Applicant: Michilin Prosperity Co., Ltd.
    Inventor: Jia-Wang Jiang
  • Publication number: 20100176234
    Abstract: The invention relates to a material bed roller mill having two rollers (1, 2) which are rotatably supported in a machine frame (3) and driven in opposite directions and whose roller gap, which is charged from above with the grinding material to be comminuted, is delimited at its ends during the operation of the roller mill by a grinding material guide plate (5) which can be removed from its operating position, wherein a) the grinding material guide plate (5) is displaceable in an upward direction and away from the end of the roller gap to such an extent relative to its operating position that the rollers (1, 2) can be removed from the machine frame (3) in the horizontal direction; b) during that displacement movement, the grinding material guide plate (5) is guided by guide bodies along an arc-shaped guide and c) in the operating position, the grinding material guide plate (5) is supported towards the outside against the forces exerted by the grinding material by support members which are connected pivotably
    Type: Application
    Filed: June 16, 2008
    Publication date: July 15, 2010
    Applicant: POLYSIUS AG
    Inventors: Nils Hörster, Helmut Lücke, Silvio Lorenz
  • Publication number: 20100127110
    Abstract: In order to create a roller press, particularly for comminuting a bed of material, the roller press having two rollers separated from each other by a roller nip and using hydraulic cylinders to press the one roller against the oppositely situated roller over the material situated in the roller nip, the stress on the surface of the rollers to be reduced and their service life to be increased, it is proposed according to the invention that both rollers are designed as loose rollers that are displaceable transversely relative to the roller nip, the bearing housings of the rollers being supported on side parts of the machine frame by hydraulic cylinders that apply the roller compaction pressure.
    Type: Application
    Filed: July 13, 2007
    Publication date: May 27, 2010
    Inventors: Alexander Hagedorn, Christian Splinter, Meinhard Frangenberg, Matthias Mann
  • Publication number: 20090261190
    Abstract: A drive systems for a roller mill is provided. To ensure the continuous availability of the mill, more than two drives are provided, wherein the at least two drives are capable of achieving the full grinding capacity of the roller mill.
    Type: Application
    Filed: April 27, 2009
    Publication date: October 22, 2009
    Inventors: Dirk Hoffmann, Otto Jung, Karl-Heinz Schuette
  • Publication number: 20090236455
    Abstract: A roller press which is used, in particular, for material bed comminution and into the material feed hopper of which both coarse-grained material, such as, for example, fresh material, and fine-grained material, such as, for example, recirculated grits from a downstream sifter and/or, for example, fly ash, are introduced, wherein the stability of the material bed or grinding bed and therefore a high grinding efficiency are ensured despite the considerably different grain size and grain distribution in the two material flows to be drawn into the roller nip. A pressure screw which conveys the fine material under pressure is inserted into the material feed hopper through at least one fine-grain inlet opening in the hopper, a nozzle-like outlet, in particular a flat nozzle, of the pressure screw extending into a central region of a material draw-in of the press roller nip.
    Type: Application
    Filed: June 1, 2007
    Publication date: September 24, 2009
    Inventors: Siegfried Strasser, Andreas Enders, Silke Liedtke
  • Patent number: 7566166
    Abstract: An animal feed mixer includes a housing forming first and second chambers. An upper auger and a lower auger are mounted in one of the chambers and a rotor is mounted in the other of the chambers. The rotor includes a plurality of arm assemblies that are staggered with respect to one another, that overlap one another in length, and that have paddles affixed to the outer ends of radially extending arms.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: July 28, 2009
    Assignee: Roto-Mix, LLC.
    Inventors: Benjamin R. Neier, Rodney R. Neier, Gregory R. Reimer
  • Publication number: 20090108110
    Abstract: The present invention regulates the delivery of feedstock to the fragmentation zone in a gravity-fed comminuting machine and reduces the ejection of feed materials by means of a rotating cylinder located at an offset position above the rotor. Rotationally mounted on an axis parallel to and above, but offset from, the axis of the rotor, this cylinder serves primarily as a striking surface, or anvil. The continual rotation of the anvil, in the opposite rotational direction as the rotor and with much slower rotational speed, assists in agitating the feed material, alleviating the problems of feed chute obstructions and feed aggregation. The cylinder forces the feed materials into contact with the rotor teeth through continuous rotation and provides a novel tooth design to improve efficacy and reduce wear.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Inventors: Jamey O. Brick, Douglas G. Meyer, Nick D. Lieser, Dennis D. Finken, Todd J. Marquardsen
  • Publication number: 20080296424
    Abstract: A two-roll machine, in particular a roll press, for interparticle comminution of granular material with two rotatably mounted, counter-rotating driven rolls separated from one another by a roll gap. Drive journals of the roll's shaft-mounted gearboxes are shaft-mounted as step-down planetary gear units. A machine table with a table platen is arranged under each of the shaft-mounted gearboxes that can move back and forth parallel to the roll shaft in at least one direction, and three vertically and horizontally adjustable supporting rests arranged in a triangle are arranged on the table platen on which the respective shaft-mounted gearbox can be supported offset-free and aligned with the roll shaft drive journal during its installation and removal.
    Type: Application
    Filed: December 10, 2006
    Publication date: December 4, 2008
    Inventors: Meinhard Frangenberg, Erich Sommer, Jorg Schnepper, Christian Splinter, Alexander Hagedorn
  • Publication number: 20080245908
    Abstract: A substrate destruction apparatus for destruction of paper and optical discs, wherein first and second shafts are used for shredding paper fed through a paper receiving opening and second shaft is shared such that the second shaft and a stationary structure are used to damage optical discs. First and second shafts are provided with a plurality of cutter elements that interleave with when rotated relative to each other during use in a paper mode. When the apparatus is operated in a disc destruction mode, the shared second shaft is rotated in an opposite direction than the paper shredding direction and interleaves with the stationary structure to at least damage an optical disc fed through the disc receiving opening. Cutting elements on the second shaft have radial projections and protrusions for damaging at least the surface of the disc with a plurality of scratches, depressions, or cuts, rendering the disc unreadable.
    Type: Application
    Filed: April 4, 2007
    Publication date: October 9, 2008
    Applicant: Fellowes Inc.
    Inventors: Dmitry ROMANOVICH, Vadim Romanovich
  • Publication number: 20080245907
    Abstract: The invention relates to a safety system ensuring availability of a milling or crushing plant with a roller grinding mill, which is provided in a combined plant, more particularly for the mill drying of cement raw material. For bringing about an almost 100% redundancy, in particular six milling rollers are provided. The roller grinding mill is designed in such a way that 80% of the full milling capacity can be provided in four-roller operation.
    Type: Application
    Filed: August 12, 2004
    Publication date: October 9, 2008
    Inventor: Thomas Loesche
  • Publication number: 20080217451
    Abstract: In order to design a two-roll machine, in particular a roller press for material bed comminution of granular material, having two rotatably mounted rolls driven in opposite directions and separated from each other by a roll gap, in such a way that the roll change can be brought about still more simply and rapidly, according to the invention it is proposed to attach to the front end of the roller press which is adjacent to the fixed roll (10) an additional frame, specifically a lower frame (23) lengthening the two bracket lower flanges (15, 16) and a transverse frame (24) that is connected to the two bracket upper flanges (17, 18) and has a clear opening width which permits the complete rolls to be pushed through the transverse frame (24) on to the lower frame (23), and to construct the frame end pieces (19, 20) supporting the fixed roll (10) during the roller press operation such that they can be folded up hydraulically for the purpose of the roll change, so that, with the machine frame end pieces folded out
    Type: Application
    Filed: September 16, 2006
    Publication date: September 11, 2008
    Inventors: Meinhard Frangenberg, Alexander Hagedorn
  • Publication number: 20080149745
    Abstract: Described is a roller mill (1) for grinding particulate material such as cement raw materials, cement clinker and similar materials, said roller mill (1) comprising a housing (3) which surrounds a grinding table (7) which is rotatable about a vertical axis (5), said grinding table being supported via a support (9) by a machine foundation (11), at least one roller (13) rotatable about a substantially stationary axis (12), said roller being configured for interaction with the grinding table (7) and an electric motor (15), which comprises a rotor (16) which is firmly connected to the grinding table (7) and a stator (17). The roller mill is peculiar in that the stator (17) constitutes an integral part of the support (9) for the grinding table (7), so that at least some of the load imposed by the at least one roller (13) on the grinding table (7) is transmitted via the stator (17) to the machine foundation (11).
    Type: Application
    Filed: June 12, 2006
    Publication date: June 26, 2008
    Applicant: FLSMIDTH A/S
    Inventor: Luis Petersen
  • Patent number: 7195187
    Abstract: A rolling mill system has oppositely driven, temperature-controlled first and second rolls, each having a first roll half with a first end face, a second roll half with a second end face, and a roll center. The first roll has a peripheral surface with open grooves arranged on the first and second roll halves and with ribs between the grooves. The grooves of the roll halves are arranged opposed to one another at an obtuse angle and symmetrically to the roll center. The width of the ribs is smaller than the width of the grooves. The grooves extend continuously between the end faces. The second roll has a smooth peripheral surface. First and second cutting devices are arranged at the first and second end faces of the first roll, respectively. The cutting devices are arranged near open ends of the grooves.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: March 27, 2007
    Inventor: August Albers
  • Patent number: 6588689
    Abstract: An apparatus 10 for crushing materials such as rock, ore, coal, stone and the like includes two rolls 16A and 16B which are mounted in parallel to define a gap 18 therebetween. Chunks of material to be crushed are fed by a conveyor 12 into the nip 14 between the rolls. Each roll 16A and 16B is similar and includes longitudinally extending steps provided by outwardly extending faces and smoothly curved surface segments between the steps. When the rolls are counter-rotated at the same speed, the gap 18 is maintained substantially constant and effectively transversely reciprocates in location between limits defined by the outer extremity of the face of a step on one roll being located opposite the inner extremity of the face of a step on the opposite roll. Compared to smooth roll crushing the invention provides for greater reduction ratios to be achieved at slower rotational speeds and using smaller diameter rolls.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: July 8, 2003
    Assignee: Abon Engineering Pty Ltd.
    Inventor: Neville James Bond
  • Patent number: 6565022
    Abstract: An apparatus for and method of recycling the edge portion of a chopped strand mat are disclosed. The method includes the steps of trimming an edge portion of the chopped strand mat, transporting the edge portion to a shredder assembly, and shredding the edge portion into individual strands or filaments. The separated strands are introduced with new chopped strands into the chopped strand mat forming process. The apparatus for recycling the edge portion of the mat includes a shredder assembly for separating the edge portion into individual strands. The shredder assembly includes two pairs of rollers that engage the trimmed edge portion. The first and second pairs of rollers are driven at first and second rotational speeds, respectively. Preferably, the second speed is greater than the first speed. The mat is pinched between each pair of rollers and is thereby placed under tension due to the different rotational speeds.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: May 20, 2003
    Assignee: Owens Corning Canada Inc.
    Inventor: Christopher James Clements
  • Publication number: 20030019965
    Abstract: A break roll machine wherein a timing belt of a differential transmission mechanism can be removed easily and wherein the removal of a roll pack module from a machine frame and the installation of the new pre-assembled roll pack module can be performed easily in a short time is disclosed. A cutout portion is provided to one of a paired tension arms so that the one tension arm is rotatable around a pivot point at an upper portion of the tension arm. As a rotary shaft of an idler pulley is released from the tension arm through the cutout portion, the timing belt can be removed easily. An air cylinder is rotated freely by a first and a second linkage member. An operator can easily access to a bolt located behind the air cylinder only by inclining the air cylinder at any desired direction.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 30, 2003
    Inventors: Yoshihiro Tokui, Yasushi Hisamitsu, Makoto Miyaji, Shigeki Uebayashi, Hiroyuki Kawano
  • Patent number: 6203588
    Abstract: The invention relates to a method of producing a grinding roll in which a roll tire made from a highly wear-resistant bainitic cast material is applied to the basic roll body. In order to create a roll tire with particularly high reliability against fractures and with relatively high wear resistance and compression strength, the roll tire is produced from a ductile bainitic spheroidal graphite cast material having a breaking elongation of approximately 0.1 to 2.5% and a compression strength of approximately 1,000 to 1,800 Mpa.
    Type: Grant
    Filed: November 11, 1998
    Date of Patent: March 20, 2001
    Assignees: Krupp Polysius AG, Schwäbische Hüttenwerke GmbH
    Inventors: Heinz Schröder, Helmut Lücke, Ludger Rübbelke
  • Patent number: 6149085
    Abstract: The present invention relates to a housing provided for a rolling mill. The housing includes two sidewalls and at least two horizontal beams for receiving a roll unit. This construction is characterized in having at least one further additional beam arranged in a vertical spacing to the beams, whereby the beams pass through the side walls or are fastened partly outside thereof.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: November 21, 2000
    Assignee: Buhler AG
    Inventors: Wilhelm Fetzer, Urs V. Keller
  • Patent number: 6032882
    Abstract: In order to enable grinding, with the lowest possible specific energy requirement, of brittle grinding material, in particular moist ores and/or other moist minerals, with the use of an interparticle crushing high-pressure roll press in which the roll surfaces are protected against wear by means of a grid armoring by an autogenous wear protection layer, without having to accept the risk of a premature damaging of the wear protection layer given the occurrence of rough particles/oversized particles/scattered particles, a smooth roll mill is connected upstream from the interparticle crushing high-pressure roll press, in whose nip (i.e. that of the smooth roll mill), the nip width is limited to a maximum of approximately 4 mm, such that only the oversized particles (scattered particles) contained in the feed material are coarse-crushed by means of individual particle crushing.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: March 7, 2000
    Assignee: KHD Humboldt Wedag AG
    Inventors: Akbar Farahmand, Rene Klymowsky
  • Patent number: 5967435
    Abstract: A single drive motor is connected by a speed reducer directly to the shaft of one roll of the two aggressive surfaced rolls which form a chip destructuring nip. One roll is dynamically positionable perpendicular to its axis of rotation to open and close the nip. Each roll turns on a shaft positioned along the axis of the roll which is mounted to a frame by bearings. Only the non-positionable roll is driven directly by the drive motor. The roll which is dynamically positionable is driven by a tire arrangement mounted about the axes of the rolls. Opposed tires mounted on the spaced apart parallel shafts form a clutch-like means for driving the dynamically positionable roll.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: October 19, 1999
    Assignee: Beloit Technologies, Inc.
    Inventor: Bryan P. Lanham
  • Patent number: 5697560
    Abstract: Fiberglass filaments are cut into fiberglass staple fibers having a maximum predetermined length with an apparatus comprising a cutter to cut the filaments into fiber segments; a fiber aligner to align the fiber segments in a given direction; and a chopper for cutting said fiber segments transverse to the given direction at spaced intervals having a spacing equal to the predetermined length.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: December 16, 1997
    Assignee: Etc. Industries, Inc.
    Inventor: Bobby Ben Bennett
  • Patent number: 5678777
    Abstract: At least a pair of metal rolls having different peripheral speeds with each other are removably mounted to respective rotary shafts in a cantilever form. The axial length of each of the metal rolls is between 100 and 500 mm and the peripheral speed of the high speed roll is between 12 and 30 meter/second. A cover is fitted to a milling chamber that houses therein the paired metal rolls and has a transparent member at least as a part thereof. With such an arrangement, the rolls can be replaced with ease and the milling operation carried out in the milling chamber can be easily monitored through the transparent member.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: October 21, 1997
    Assignee: Satake Corporation
    Inventors: Satoru Satake, Hideki Sakaki, Katsumi Okamoto