Abstract: A device for comminuting feedstock having a rotor, rotating within a housing around an axis, with rotor tools lying within the outer circumferential region on a circumferential ring and a stator, associated with the rotor, with stator tools arranged concentrically in the outer circumferential region and forming a comminuting surface, whereby the rotor tools and the stator tools lie opposite at a distance with the formation of a working gap and the stator tools are formed by segments, which to form the comminuting surface rest on the stator with their rear side and lie with their long sides against one another. The segments are attached to the stator in each case with their first short side and second short side by a positive fit, whereby the stator has a clamping element, which works together with the first short side and/or second short side to clamp the segments against the stator.

Abstract: A method and a device for adjusting a knife assembly of a knife ring to a predetermined knife projection, wherein the knife assembly is designed to be arranged in the knife ring at a chip angle ?, relative to the inside of the knife ring. The knife assembly is formed by a knife holding plate and a chipping knife which are positively connected with one another in a predetermined, relative target position. A knife assembly to be adjusted is provided, wherein the knife holding plate and the chipping knife are displaceable relative to one another. The knife holding plate is displaced in its plane, transversely to its direction of longitudinal extension towards its rear edge, against a first stop. The chipping knife is displaced in its plane against the stop surface of a second stop, until the predetermined knife projection has been reached.

Abstract: A device and a method for processing feed material that has a housing, a material supply channel and a material discharge. The housing is axially divided into a first processing zone in which a rotor rotating around an axis is situated, and a second processing zone which adjoins the first processing zone in the flow direction of the feed material. In order to perform different processing procedures in one device the feed material is subject to a process gas by arranging a hollow body in the housing, coaxially to the axis for the formation of the second processing zone, which outer circumference is radially situated opposite the inner circumference of the housing, and which features at least one port at the end that is facing the rotor. A process gas, which can be fed to the feed material through at least one port, is applied to the hollow body.

Abstract: A device for the comminution of free-flowing feed material is provided that includes a housing enclosing a comminution chamber which contains a rotor that rotates around an axis, and has comminution tools over its circumference. A feeding device to transport the feed material to the comminution chamber in form of a gas-solid matter mixture, wherein the feeding device features a pneumatic sieve passage which uses the effect of gravity for removal of foreign particles from the feed material. In order to operate both the sieve passage and the device under optimal process parameters, the device features at least one inlet port for the supply of secondary air, wherein the at least one inlet port flows into the gas-solid matter mixture downstream of the sieve passage.

Abstract: A tool unit for a comminution device with a rotor-stator system is provided, in which comminution tools are detachably fastened to tool holders on a rotor circumference and work together with comminution tools located on the stator. In order to shorten the tool replacement downtimes of a device equipped with such a tool unit and to increase its profitability, the tool holder includes a first carrier section and a second carrier section, the rear sides of which sections detachably contact one another in a common contact plane, and on each of the mutually averted front sides of which is located at least one bearing surface for accommodating a tool.

Abstract: A device for comminuting feedstock with a rotor which is disposed within a housing and rotates about an axis of rotation and is equipped over its circumference with comminuting tools. A ring disc is attached to front sides of the rotor in each case concentrically to the axis of rotation. The removal of the sufficiently comminuted material occurs via a screen deck extending over part of the rotor circumference. On axial front sides of the screen deck an arcuate sealing element following the outer circumference of the ring disc is disposed in each case, the element which to form a sealing gap in the plane of the ring disc lies radially opposite to the disc. The sealing effect of the sealing gap between the screen deck and rotor uniformly over the entire length is successfully achieved in this way.

Abstract: A cutting unit for comminuting bulky feedstock and a device into which such a cutting unit is integrated. The cutting unit has a cutting chamber, which is arranged along a conveying direction and is formed by paired opposite cross walls and longitudinal walls. A knife for comminuting the feedstock can be moved transverse to the conveying direction across the entire cross section of the cutting chamber from one cross wall to the opposite cross wall. To also assure the complete cutting through of fiber-containing or film-shaped feedstock, a counter knife is arranged in the cross wall opposite to the blade of the knife which is stationary relative to the cutting chamber and which during the cutting process forms a cutting gap with the blade of the knife. The wall segment of the opposite cross wall is placed movable in the advance direction of the knife.

Abstract: Apparatus for comminuting pourable feedstock, including a housing surrounding a comminution space, in which housing a rotor rotating about an axis is disposed, the rotor being equipped around its circumference with rotor tools. A screen is disposed here along one portion of the rotor circumference. The apparatus is charged with feedstock through a product inlet, and the sufficiently comminuted product is drawn off through a product discharge. The product discharge includes a suction bin to collect the screen through fraction, which bin can be connected to a suction line to allow the collected product to be transported away. In order to improve the accessibility of the rotor for repair and maintenance work while simultaneously preserving a compact constructive design of the apparatus, the screen and the suction bin form one unit that can be swiveled as a whole about a horizontal swivel axis relative to the rotor.

Abstract: A device for comminuting bulk charge stock with a housing surrounding a rotational axis. The housing has a first front wall, a second front wall plane parallel at an axial distance and a shell wall connecting the first front wall and second front wall on the circumferential side, which together form a comminuting chamber. A comminuting system rotating about the rotational axis is arranged in the comminuting chamber, which comminuting system has first comminuting tools and second comminuting tools interacting therewith, which form a concentric comminuting zone for charge stock. In order to cool the comminuting zone effectively and economically, a cooling channel is provided, which surrounds the shell wall outside in the plane of the comminuting chamber, wherein the cooling channel has an entry opening for charging with cooling gas and an exit opening for the discharge of the cooling gas.

Abstract: A device and method for dissociating feed material occurring as mixed materials is provided. The device includes a rotor/stator system arranged within a housing, a rotor of the rotor/stator system being equipped around its circumference with processing tools which are radially opposed by stator tools that are arranged stationary relative to the housing while maintaining a working gap; a first circumferential section for supply of the feed material and wherein the processing of the feed material takes place along a second circumferential section, the second circumferential section being divided in a direction of rotation of the rotor into a first subsection and at least one additional second subsection; and a stator tool followed by a processing path being provided at a start of each subsection with respect to the direction of rotation of the rotor.

Abstract: A tool unit for a comminution device with a rotor-stator system is provided, in which comminution tools are detachably fastened to tool holders on a rotor circumference and work together with comminution tools located on the stator. In order to shorten the tool replacement downtimes of a device equipped with such a tool unit and to increase its profitability, the tool holder includes a first carrier section and a second carrier section, the rear sides of which sections detachably contact one another in a common contact plane, and on each of the mutually averted front sides of which is located at least one bearing surface for accommodating a tool.

Abstract: A device for dewatering bulk or free-flowing input material by compacting it is provided. The device has a housing arranged along an axis of rotation, which has an input area and a feed and compaction area following axially within a jacket pipe. In the housing, a coaxial drive shaft with circumferentially extending coils rotates, compacting the input material during transport from the input area through the feed and compaction area. In this process the residual water present in the input material is conducted through radial openings in the jacket pipe from the device. According to the invention it is provided that at least in a partial region the jacket pipe is provided with passages and inside the jacket pipe an inner pipe is arranged, which lies at least partially with its external circumference against the inner circumference of the outer jacket pipe and which at least in the area of the passages has passage openings that are several fold smaller than the passages in the jacket pipe.

Abstract: A device for processing free-flowing input material is provided that includes a rotor rotating around a shaft within a housing, the rotor being fitted over its circumference with rotor tools. Stator tools, permanently fixed to the housing, are arranged, which are disposed opposite the rotor tools allowing a working gap and interact with the rotor tools to process the input material. The stator tools are held in a holder, forming a tool unit. The tool units are made self-supporting over the length of the rotor and end sections of the tool units are fixed removably in respective clamping devices.

Abstract: A device for comminuting input material, especially for fine and ultrafine grinding of input material, includes a rotor revolving around a shaft inside a housing, the rotor having a cylindrical or conical jacket surface. An annular gap is present between the housing and the jacket surface, the gap forming a comminution zone and the input material being introduced axially to it. To increase the economic efficiency of the device, it is provided that a plurality of first pin-shaped comminuting tools for comminuting the input material are disposed over the circumference of the rotor, wherein the tools are aligned with their longitudinal direction perpendicular to the jacket surface in the direction of the housing.

Abstract: A device for processing feedstock, includes a housing surrounding a processing chamber in which a rotational rotor having processing tools and mounted on a drive shaft is disposed around an axis. The feedstock is fed to the processing chamber via a material inlet and removed from the device via a material outlet. To facilitate assembly and disassembly of the device and to retool, maintain and repair or clean the device, it is provided according to the invention that the housing includes a first end wall, a material element in the shape of a hollow cylinder or hollow truncated cone, and a second end wall which are detachably connected to each other to form the processing chamber. The connection can be made by axially acting clamps, which clamp the first end wall against the second end wall by clamping the casing element.

Abstract: A device for comminuting scrappable feedstock by way of cutting or shear-cutting is provided that includes at least one rotor situated within a housing. The rotor has a plurality of rotary disks which are situated at an axial distance from each other, forming spaces, and which are fitted on their circumferences with comminuting tools which interact with additional comminuting tools to perform the comminution work. Stationary scraping elements extend into the spaces in the radial direction. To achieve a largely unhindered flow of stock through the device, it is proposed according to the invention to situate the stationary scraping elements in the dead zone of the at least one rotor with regard to the direction of stock flow.

Abstract: A device for grinding input material is provided with a supporting disk rotating around an axis of rotation within a housing. On the supporting disk, in its circumferential area, first grinding tools are arranged concentrically, axially opposite from which second grinding tools are arranged, forming a radial grinding gap. During operation of a device in accordance with the invention, the grinding tools execute a motion relative to one another. In accordance with an embodiment, the first grinding tools be fastened over an interchangeable ring to the supporting disk, wherein the interchangeable ring is fastened removably to the supporting disk concentric to the axis of rotation and on which the first grinding tools are arranged.

Abstract: A rotor and device for the comminution of input material is provided. The rotor includes a drive shaft on which a predetermined number of rotor discs are provided and over the circumference of which grinding tools are arranged. In accordance with an embodiment, it is provided that frictional connection elements are arranged between the rotor discs forming axial ends of the rotor and the shaft for transferring a torque, and that power transmission elements are arranged in a contact surface of two adjacent rotor discs and that the rotor discs can be clamped together with axially acting clamping elements.

Abstract: A device for comminuting feedstock is provided that includes a cutting tool with a first rotor and at least one second rotor, each of which rotate around their longitudinal axis with an opposite rotation direction. Each rotor is provided with a number of cutting discs, which are arranged at an axial distance to one another. In this case, the cutting discs of the first rotor are located on gaps and with radial overlapping relative to the cutting discs of the second rotor. The cutting discs along their circumference have support surfaces for accepting cutting tools, whose cutting edges move past one another over the course of the rotation of rotors with the formation of a cutting clearance. For the positionally precise fixation of the cutting tool on the cutting discs, a positive fit is formed between the cutting tools and cutting discs, a positive fit groove running in the plane of the cutting disc is arranged in the common contact area, the groove in which at least one positive fit strip engages.

Abstract: An apparatus and a method for producing woodfuel briquettes, pellets, compounds, composites, agglomerates, or granulates as source material for subsequent processing in injection molding or extrusion processes, includes a pressing screw with screw spirals, which rotate around a longitudinal axis and which are arranged inside a screw shell. The feed material is conveyed to the pressing screw via a feed chute located at an input side. At the end of the pressing screw, processing tools are arranged, to which the feed material is conveyed by the rotating screw spirals. In the area of the processing tools, the residual moisture in the feed material evaporates due to the heat generated during the processing procedure, and is vented as a steam flow from the apparatus through the screw shell.