Abstract: Apparatus and method for recycling asphalt millings containing bitumen and stone. A milling tube is provided having an outer tube and an inner tube axially aligned with and substantially contained within the outer tube, the inner tube having a diameter less that a diameter of the outer tube to thus define a mixing space between the inner and outer tubes. At least one of the inner and outer tubes is adapted to rotate relative to the other. An inlet is provided to the mixing space to receive the asphalt millings. A plurality of inner tube projections project radially outward from a surface of the inner tube toward the outer tube, and a plurality of outer tube projections project radially inward from a surface of the outer tube toward the inner tube. The milling tube facilitates the separation of the asphalt millings into bitumen and stone as one of the inner and outer tubes rotates relative to the other.

Abstract: A method for treating process material using a plurality of autoclaves, wherein each of the plurality of autoclaves cycles through the following steps: introducing a steam from one or more of the plurality of autoclaves to the interior of the vessel; increasing the temperature within the vessel by adding heat to the interior of the vessel using an indirect heat source; reducing the temperature and pressure within the vessel by venting a portion of the steam within the interior of the vessel to another one of the plurality vessels; increasing the temperature within the vessel by continuing to add heat to the interior of the vessel using the indirect heat source; reducing a moisture content of the process material in the interior of vessel to a predetermined value by conveying the steam to another one of the plurality of vessels.

Abstract: Method and device for preparing a paste by blending or mixing materials, in particular for making aluminum production electrodes. The method includes the following operations: a) introducing the materials to be blended or mixed into a vat (31) having an inner surface extending along a substantially horizontal axis of revolution (X), b) rotating the vat (31) about the axis of revolution (X) and urging the materials via centrifugation against the inner surface of the vat (31), and c) locally dislodging the centrifuged materials from the inner surface by rotating the vat (31) and causing same to fall onto a crumbling tool (40).

Abstract: A crushing mill with an internal ring inside an external ring is disclosed. In some embodiments, the inner ring has protrusions that fit within pockets in the outer ring such that as the rings rotate rock or other materials may be crushed between the protrusions and pockets of the inner and outer rings, respectively. In some embodiments, the inner and outer rings each have surface protrusions such that rock or other materials may be crushed between the inner and outer rings as they rotate. In some embodiments, the inner ring has a circumferential ridge that fits within a circumferential groove of the outer ring such that rock or other materials may be crushed between the rings. In some embodiments the rings operate at differential speeds with respect to each other to induce shear forces on the material to be crushed.

Abstract: Comminution apparatus is described which is tailored for the processing of green, soft, and fibrous waste. Inner and outer comminution drums bear projecting macerating features which can progressively interact to provide a shearing action on material on waste within the outer comminution drum. Screening apertures on the outer comminution drum allow for the exit of comminuted material.

Abstract: A milling apparatus in which at least two independently driven axiaily mounted elements are eccentrically mounted one within the other so as to define a processing chamber (12) therebetween with the minimum radial gap between the elements at one position being diametrically opposite to the maximum radial gap. Stresses are applied to the material by passing it through the minimum radial gap, which is adjustable. The elements may be rotated in the same direction to apply compressive and extensional stresses to material within the minimum gap, or in opposite directions to apply shear stresses to the material within this gap. A third element may be incorporated within the chamber to provide heat transfer and distributive mixing to the stressed material.

Abstract: A mixing machine adapted to mix a liquid mixture containing bitumen with solid granules so as to obtain a homogenized bituminous mix. The machine includes a cylindrical container arranged coaxially to a vertical axis and capable of containing the liquid mixture containing bitumen and the solid granules, a heating circuit for heating the inner side surface of the cylindrical container, a mixing assembly mounted axially rotatable within the container to rotate about the vertical axis, and a driving unit adapted to rotate the mixing assembly about the vertical axis. The mixing assembly includes a helicoidal blade which extends coaxial to the axis within the container and has its outer peripheral edge in contact with the inner surface of the container so as to scrape the material adhering on the inner surface during its rotation.

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.

Abstract: The invention relates to hard elements generally produced by powder metallurgy for protecting rolling press rollers from wear, this protection taking the form of grid armouring. In order to provide hard elements which can be produced relatively inexpensively and which, in particular, can again be disassembled in a relatively simple manner, even in the damaged state, from their respective roller body cutouts for the purpose of roller repair, the invention proposes prefabricated hard elements with a prefabricated central cutout which, starting from the radially inner end of the hard elements, extends over at least some of the height of the hard elements.

Abstract: A hogger and reducing apparatus and considers issues associated with fibrous other materials clogging screening apertures A paddle arrangement having an open framework rotates relative to the screening apertures provided on a drum. Either or both the paddle arrangement and drum may rotate, the resultant action increasing agitation of raw material (being reduced in size by a reducing means) in the vicinity of the screening apertures and also providing a wiping type effect to help clear material from within the apertures.

Abstract: A rotary press is supported on a frame allowing liquid and solid receivers to be placed underneath the rotary press. The rotary press has an outer ring and an inner drum. The inner drum has an upper and lower flange with a stripper ring retained between these flanges. The flanges form two sides of the cavity where the pressing takes place. The flanges carry the solids away from the pressing zone to a discharge zone where the stripper ring expels the solids. By transporting the solids away from the pressing zone where liquids are expelled, reabsorption of the liquid is avoided. The stripper ring can move relative to the two flanges and is biased against the outer ring by the inner ring. The stripper ring applies pressure to the material to be processed and also pushes solid material from between the upper and lower flanges to fall into a receiver for the solids.

Abstract: A horizontal roller mill to increase production yield. An example horizontal roller mill includes a cylinder and rollers. Each end of the cylinder includes an end cover, the end cover of one end includes an inlet and an end cover of the other end includes an outlet port. An outer wall surface of the cylinder includes a driving member for rotating the cylinder, the roller being located within the cylinder. Axial sections at both ends of the roller extend out of the end covers of the cylinder. The extended axial sections are provided with a mechanism for adjusting the material grinding pressure and for adjusting the gap between the surface of the roller and the inner wall surface of the cylinder. The example roller mill includes scrapers configured to scrape material layers. Further, at least two of the rollers are distributed along the circumference of an inner cavity of the cylinder. The example roller mill also includes a support system configured to restrict the cylinder in the circumferential direction.

Abstract: Horizontal roller mills are disclosed. An example horizontal roller mill includes a cylinder and rollers. Each end of the cylinder includes an end cover, the end cover of one end includes an inlet and an end cover of the other end includes an outlet port. An outer wall surface of the cylinder includes a driving member for rotating the cylinder, the roller being located within the cylinder. Axial sections at both ends of the roller extend out of the end covers of the cylinder. The extended axial sections are provided with a mechanism for adjusting the material grinding pressure and for adjusting the gap between the surface of the roller and the inner wall surface of the cylinder. The example roller mill includes scrapers configured to scrape material layers. Further, at least two of the rollers are distributed along the circumference of an inner cavity of the cylinder. The example roller mill also includes a support system configured to restrict the cylinder in the circumferential direction.

Abstract: An apparatus for comminuting, grinding and dispersing flowable grinding stock has a grinding receptacle with an inner, first grinding surface, which is rotationally symmetrical relative to an axis of rotation, and is drivable to rotate about the axis of rotation. Also provided is a grinding roller, which has a second grinding surface that is rotationally symmetrical relative to a central longitudinal axis, and is drivable to rotate about the axis. A grinding gap is defined between the first grinding surface and the second grinding surface.

Abstract: A grinder constituted by a ring (10) having a horizontal axis, a mechanism for driving the ring in rotation about its axis, at least one roller (16) the axis of which is parallel to that of the ring and which is placed inside the latter so as to be able to travel over its internal surface and elastic member (30) for pressing the roller against the ring, the roller being supported at its ends by two arms (22) mounted on the frame of the grinder so as to be able to pivot about an axis parallel to the axis of the ring.

Abstract: A grinding apparatus for forward feeding material in a drum in which the grinding apparatus has a circular grinding track therein. The drum is driven in rotation at a speed such that material therein is held on the circular grinding track by centrifugal force. A knife is positioned in an upper descending portion of the drum for detaching material from the circular grinding track. A deflecting plate is disposed beneath the knife so as to receive materials detached by the knife and to divert the detached materials toward the output of the drum. The knife is disposed such that the knife has an active face forming an angle of between +15° and −50° with a radial plane extending between a horizontal axis of the drum and an edge of the active face.

Abstract: A grinder for use in wet grinding having a roller or wheel rolling on a circular track and elastically pressed thereon. The materials to be ground are subjected to several layer on bed grinding operations to enable the rational utilization of this type of grinder. During the time between two successive grinding operations in the grinder, water or another liquid is introduced by nozzles to the materials. The materials are drained and/or dried by a screen so as to reduce water content to below 20% in volume.

Abstract: A grinder having an annular track with a horizontal axis (14), a roller (16) capable of travelling over the track, a mechanism for pressing the roller against the track and means (18) for displacing the material from one edge of the track to the other in such a way that it passes several times beneath the roller before being evacuated. To enhance the efficiency of the grinder and the distribution of mechanical stresses in the roller and the track, the track (14) and the roller (16) are designed in such a way that the gap between them decreases from the edge of the track (14) located on the side for supplying the material to be ground to a distance from this edge at least equal to 80% of the width of the track, and in that this interval then swiftly increases to form a decompression area (19) on the ground material evacuation side.

Abstract: A grinding mill is provided. The mill uses a substantially two-dimensional system for producing gyratory motion in a dish for the purpose of rotating a puck within the dish. The system includes a spin-disk having a circular off-center cavity for holding a dish holder fixedly containing a dish. When the spin-disk is rotated, the dish holder orbits about a point other than its center point, but does not rotate about its center point because its movement is limited by a restrainer. A puck is disposed within the dish, possibly along with a ring, in a fashion that allows the puck, and the ring if present, to freely move within the dish. Thus, the dish holder orbits but does not rotate and the puck spins or bounces within the dish. The combination of these movements causes the puck to impact the dish in a way that crushes a sample within the dish. The mill may be constructed small enough to be used on a work bench. It can also be completely enclosed in a carrying case for efficient transport and storage.

Abstract: A method and system for reclaiming aggregate from concrete waste material includes crushing step and means of compression-crushing lumps of concrete waste material into a crushed mixture, and sorting the crushed mixture by size thereof, grinding step and means of rotating the crushed mixture sorted to grind it with a grinding member which rotates in an opposite direction to the rotating direction of the crushed mixture sorted, thereby peeling mortar from gravel, crushed stones and sand of the crushed mixture to obtain a mixture of gravel, crushed stones, sand, cement and mortar, and product separating step and means of separating the mixture of gravel, crushed stones, sand, cement and mortar into gravel and crushed stones, sand, cement and mortar.

Abstract: A tubular mill for grinding natural and synthetic raw materials, in particular for the cement industry, includes a rotary cylindrical drum (11, 111) arranged with its axis (27) horizontal and containing at least one grinding element (25, 34), in which there are one or more grinding chambers (22; 23, 123) connected together, in at least one (22) of which the grinding element consists of a roller (25) which when in its operating position has its axis (26) essentially parallel to the axis (27) of the drum (11, 111) and is supported by an independent external pressure and extraction support (28), the roller (25) being idle and, at least along one of its outer generating lines, engaging an annular grinding track (24) rigid with the inner wall of the drum. As the grinding element for the second chamber (23), the mill can include a second roller (34) arranged and supported as the first roller (25), or a plurality of grinding balls.

Abstract: An apparatus for grinding a solid material into a granulated powder formed of particles of generally uniform size includes: a mounting frame; a grinding vessel mounted on the mounting frame which has a grinding cavity defined by a substantially planar floor, a substantially planar ceiling parallel and opposed to the vessel floor, and a substantially circular internal wall; a circular grinding disk positioned within the grinding cavity; and a drive motor or other revolving means for revolving the grinding vessel along an essentially circular path. The revolving motion of the grinding cavity should cause the grinding disk to contact and roll a solid material against the cavity internal wall and thereby grind a solid material contained therein into granules of substantially uniform size.

Abstract: A non-galling, jam resistant aluminum beverage can crusher is disclosed.

Abstract: High-shear treated materials are passed through a high-shear treatment zone which allows the coexistence of free supra-Kolmogoroff eddies larger than the smallest possible Kolmogoroff eddy diameter and forced sub-Kolmogoroff eddies smaller than this diameter. This zone includes a subsidiary higher-shear zone for suppressing these free eddies. The passage walls (40, 44, 102, 108) move relative to one another transverse to the flow to force the simultaneous development of supra-Kolmogoroff and sub-Kolmogoroff eddies while maintaining liquid films adherent to the passage surfaces. The movement produces only forced sub-Kolmogoroff eddies in the subsidiary zone while maintaining a non-turbulent flow. Ultrasonic oscillations (52) may be applied to cause elastohydrodynamic pressure and viscosity increases and/or production of smaller sub-Kolmogoroff eddies.

Abstract: The milling device comprises a milling roller running in a milling ring, wherein the diameter of the milling roller is at least equal to the inner radius of the milling ring. The milling roller is driven by a tangential force. By this arrangement it is guaranteed that the center of mass of the roller runs about the mill's central axis at a constant frequency that does not depend on the wear of the roller or the ring. Furthermore, the axis of rotation of the roller is not tilted during operation such that no torque is generated.

Abstract: A crusher comprises a cylindrical body, a lining supported by a portion of the cylindrical body and forming an annular track, the supporting cylindrical body portion having a prismatic interior surface, and at least one roller arranged to roll on the annular track. The lining consists of plates having a concave interior surface shaped to form a rolling surface of the annular track and a flat exterior surface resting on the prismatic interior surface of the supporting cylindrical body portion. This reduces the risk of breakage of the lining plates under the pressure applied thereto by the roller.

Abstract: A rotary tank supported by a bearing stand on a horizontal shaft in a freely rotatable manner to form a grinding/mixing chamber having an inner wall of modified cross-section such as oval one at the horizontal center axis position is driven by a rotary drive motor for driving said rotary tank to rotate it adjustably at any relatively low speed in a certain direction. A grinding/mixing blade is inserted into said grinding/mixing chamber over its whole length and mounted at the coaxial position on the rotary shaft other than that for the rotary tank.

Abstract: The method for treating materials in liquids involves passing them with the liquid through a processing gap formed by a flow passage whose walls are closely spaced and move relative to one another transversely to the direction of flow, thereby producing "supra-kolmogoroff" mixing eddies in the gap, and at the same time applying ultrasonic longitudinal pressure oscillations that reverberate between the two closely spaced surfaces into the gap transversely to the direction of flow from transducers mounted on one wall, thereby producing "sub-Kolmogoroff" mixing eddies therein. The method is capable of rapidly producing relatively thick slurries of sub-micrometer particles that otherwise can take several days in conventional high shear mixers and ball or sand mills, or of rapidly dissolving difficultly soluble gases and powders into liquids.

Abstract: A plurality of recesses, each having a semicircular section, are formed close to each other in the inner surface of a cylindrical housing so that these recesses extend parallel to the axis of the housing. The inner surface of the housing, a portion of a circle which is part of each recess, and the ends of the vanes of a rotor are provided starting from the curvature centers of the semicircular recesses to the axial center of the housing.

Abstract: The purpose of the invention is a process and a machine for the fine grinding of materials such as cement clinker. To improve the energy efficiency of the operation, by performing a systematic grinding, without resorting to excessively high pressures or excessively substantial recycling rates, there is used a mill composed of a rotating path and a roller capable of rolling on the path, exerting on the material by means of the roller an average pressure between 10 and 40 MPa and, on each turn of the path, the material is moved transversely on the latter over a distance which is a fraction of the width of the path.

Abstract: In a slag crushing device according to the present invention, a cylindrical body having a slag insertion port in its one end and a discharge port in the other end is rotatably provided around a shaft center so inclined that the position of the discharge port is below the position of the slag insertion port. At least one crushing annular body having a smaller radius than that of the cylindrical body and idled parallel with the shaft center of the cylindrical body is arranged inside of the above cylindrical body. This crushing annular body is guided by a guide frame provided on the inner periphery of the cylindrical body. The guide frame is provided with apertures for introducing slag into the crushing annular body and apertures for discharging the slag crushed.

Abstract: A device is provided for releasing cans clinging to an outer wall surface of a crushing roller and/or an inner wall surface of a tubular drum in a can crushing apparatus. To remove cans adhered to the roller, a scraping mechanism is adjustably mounted on a support arm of the can crushing apparatus. To remove cans from the inner wall surface of the tubular drum, a second scraping mechanism is adjustably mounted on a support of the can crushing apparatus.

Abstract: Finely divided powdery materials such as, e.g., precipitated silica are granulated by means of two rolls, one of which has a filter surface and the other has a profiled covering, in which the shafts of these rolls are arranged vertically one above the other and the finely divided powdery material is introduced into the gap between the rolls by means of at least one feed screw.

Abstract: A method of producing a long-life roll for a rolling mill manufacturing a rolled sheet having brightness. At least the surface of the roll barrel is made of steel containing carbide, the average grain size of which is not greater than 0.6 .mu.m, and the areal ratio of the carbide in the matrix is 6-30%. The roll is manufactured by canning steel powder produced by an RST process into a metal cylindrical container in a vacuum, sintering the powder in the cylindrical container by hot isostatic pressing, working the sintered body into the cnfiguration of a roll by machining and further giving it a heat treatment and finishing work. The roll and a rolling mill incorporating the roll are also disclosed.

Abstract: A process and an equipment for cutting material comprehends the surrounding at least of one, however preferably of several round knives along the inner wall of a drum. The adjacent round knives have a predetermined uniform axial distance as well as angular distance referred to the axle of the drum, at which it concerns a rotating hollow cylinder.

Abstract: A can crushing apparatus has an outer, bottomless drum housing, which is tubular and mounted on rollers to be freely rotatable, and a central inner roller which is mounted on the interior of the tubular drum, is urged against one side wall of the drum, and is power driven. Cans to be crushed are guided on a suitable guide into a nip between the roller and the outer drum, and are crushed as they pass between the roller and drum under spring load. Crushed cans will drop through the open bottom of the drum into a collecting bin or sack.

Abstract: A multiple-roll roller mill, useful in particular for livestock feed processing, is disclosed. The mill includes a main roller and at least two secondary rollers, each secondary roller opposing a different axial portion of the main roller circumference and thereby defining axially separate mill sections. Each secondary roller is independently adjustable towards and away from the main roller. A chain and sprocket arrangement gangs the adjustment means for opposite ends of each secondary roller to ensure that the rollers remain parallel when adjusted. Pressure springs urge the secondary rollers toward their adjusted positions, but allow movement away from the main roller when the spring pressure is overcome. A chain drive is employed which includes moveable idler sprockets arranged so as to maintain relatively constant chain tension when the roller positions are adjusted.

Abstract: The invention relates to a tubular mill for grinding natural and synthetic raw materials, in particular for the cement industry, comprising a horizontally-disposed rotary cylindrical drum, characterized by comprising one or more fixed grinding rollers disposed radially within the drum and supported by a fixed shaft which extends along the axis of rotation, each of said rollers being idle and able to rotate by friction within an annular guide rigid with the inner wall of the drum.

Abstract: An improved macerator adapted to shred crop material and having an annular perforated die ring and a roller operative within the die ring to extrude crop material through the perforations as the die ring and roller are power-rotated. The roller is journalled on a pivotable arm which is interconnected with the macerator frame by a shearable linkage permitting the roller to shift to an inoperative position if a material overload or a foreign object is encountered. A lock is automatically effective to positively retain the roller in the inoperative position until the condition can be corrected.

Abstract: An apparatus for crushing cans inserted into an opening in the housing thereof. The cans are crushed between a rotary drum and a roller rotatably mounted within the drum. A slide guide means directs the cans into the nip between the roller and drum. Crushed cans drop through an opening into a collecting bin.

Abstract: A drum is supported for rotation between two shafts having gears thereon engaging a ring gear around the outer periphery of the drum. A crushing and milling cylinder is journalled for rotation upon a vertically adjustable shaft extending freely through the entrance and exit apertures in the side plates of the drum and this shaft is supported within stationary bearings one upon each side of the drum. The sludge comprising finely crushed rock and water is discharged through the exit in one side wall and into a hopper where it is conveyed by a conveyor system over and through a bed of mercury which extracts the gold in the form of an amalgam. The sludge is then discharged from the other side of the mercury bed.

Abstract: A classifying and sorting machine for refuse particles, particularly household refuse and other refuse having a composition resembling household refuse, has a rotatable screen drum the diameter of which is within the range of 1:1-1:2 relative to its axial length. Baffles of sawtooth-shaped configuration are arranged in the drum rotating with the same and having inwardly directed ripping teeth. Annular baffles in the drum subdivide the drum into two or more axially adjacent compartments and each have an inner diameter smaller than the inner diameter of the drum, and an arrangement is provided for rotating the drum at an angular velocity which is smaller by between about 20-50% than the velocity at which the drum contents are pressed by centrifugal force against the circumferential drum wall.

Abstract: Apparatus carried on a self-propelled vehicle field processes alfalfa to obtain therefrom fiber and protein components and a deproteinized liquid component which is simultaneously applied on the field as the vehicle advances. A specially-designed macerator for shredding the harvested alfalfa is disclosed. The macerator includes a cylindrical die ring having an open end and a series of peripheral apertures through which the alfalfa is extruded by means of a pair of rollers mounted inside the die ring for rotation therewith. The die ring is rotatably supported in a frame, and the rollers are coupled to the die ring for rotation in synchronism. A shroud surrounds the periphery of the die ring to collect macerated alfalfa, and an impeller is mounted inside the shroud for displacing macerated alfalfa downwardly through an outlet in the bottom of the shroud.

Abstract: A device for extracting cellulosic and similar materials such as rags, plastics, light metals and wood, which includes a drum which is driven in a first direction at a first speed and a rotor inside of the drum which is driven in a direction opposite to the first direction at a speed higher than the first speed. A plurality of teeth are located on the periphery of the drum along a part of its length for shredding the material placed into the drum input. A fixed plate and a plate of adjustable height are placed at the output of the drum against which the other materials accumulate.