Abstract: The invention relates to a high-pressure roller press (1), in particular a material bed roller mill or a compacting machine, comprising two press rollers (3, 4) which are rotatably mounted in a press frame (2) and are driven in opposite directions and between which a filling funnel having a pressure zone (5) is formed with a nip (S) arranged at the height of the roller axis (X, X?), the gap width (W) of said nip being variable during the operation of the roller press (1), wherein the filling funnel between the press rollers (3, 4) is delimited at the roller end faces by delimiting plates (8) arranged laterally next to the press rollers (3, 4), and the delimiting plates (8) are secured to the press frame (2) in a movable manner and under the application of a force such that the delimiting plates (8) can be pushed back against the applied force during the operation of the roller press (1).

Abstract: The invention relates to a method for comminuting fertiliser slugs or slug pieces in a two-roll mill (3) in the course of producing granular fertiliser material, wherein the two-roll mill (3) has two rotatingly driven grinding rolls, the roll surfaces of which are provided with a profiling, wherein the slug or slug pieces is/are placed on the two-roll mill (3) and comminuted into granular material in the roll nip formed between the grinding rolls, wherein the grinding rolls rotate at a circumferential speed of more than 5 m/s. This e method is characterised in that the surfaces of the grinding rolls are cooled during operation.

Abstract: The invention relates to a method for monitoring a high-pressure roller press in the course of comminuting, compacting, or briquetting material. The roller press has two rotationally driven press rollers, between which a rolling gap is formed with a gap width that can be modified during operation. During operation, operational data of the roller press is ascertained by one or more measurement value sensors and is stored on a computer. The method is characterized in that the operational data is stored as raw data on an edge computer, as an analysis computer, which is stationed locally in the region of the roller press and is connected to the measurement value sensors, and the raw data is evaluated on the analysis computer using an analysis algorithm so that characteristic data of the roller press is generated and stored on the analysis computer, wherein the characteristic data is transmitted from the analysis computer to at least one terminal via a wireless network and is displayed on the terminal.

Abstract: The invention relates to a method for monitoring the wear state of the rolling surfaces of a high-pressure roller press in the course of comminuting, compacting, or briquetting material. The roller press has two rotationally driven press rollers, between which a rolling gap is formed with a gap width that can be modified during operation. One of the press rollers is designed as a stationary roller, and one of the press rollers is designed as a loose roller, wherein the loose roller can be positioned against the stationary roller via a force generating means with a gap width which can be modified during operation, and the outer diameter of the press rollers or the is reduced due to wear during operation. The method is characterized in that the position of the loose roller is recorded as a function of time using at least one position sensor, the position data is stored on a computer, and the wear state of the rollers is ascertained from the measured position data using an algorithm.

Abstract: The invention relates to a high-pressure roller press (1), in particular a material bed roller mill or a compacting machine, comprising two press rollers (3, 4) which are rotatably mounted in a press frame (2) and are driven in opposite directions and between which a pressure zone (5) is formed with a rolling gap (S) arranged at the height of the roller axis (X, X?), the gap width (W) of said rolling gap being variable during the operation of the roller press (1), wherein the pressure zone (5) between the press rollers (3, 4) is delimited at the roller end faces by delimiting plates (8) arranged laterally next to the press rollers (3, 4), and the delimiting plates (8) are secured to the press frame (2) in a movable manner and under the application of a force such that the delimiting plates (8) can be pushed back against the applied force during the operation of the roller press (1).

Abstract: The invention relates to a hot-briquetting or hot-compacting installation, in particular for directly reduced iron, having at least one first row (1) of presses with one or more first roll presses (2), and having at least one second row (3) of presses with one or more second roll presses (4), having at least one first cooling conveyor (7) beneath the first row (1) of presses, and a second cooling conveyor (8) beneath the second row (3) of presses, and having a plurality of material lines (6), which are assigned in each case to the individual roll presses (2, 4) and via which the briquetted or compacted material exiting from the roll presses (2, 4) is discharged to the cooling conveyors (7, 8). The material lines (6) are provided with one or more diverters (9), which can be adjusted such that the material from the roll presses (2, 4) of the first row (1) of presses and of the second row (3) of presses is discharged optionally in each case to the first cooling conveyor (7) or to the second cooling conveyor (8).

Abstract: The invention relates to a method for removing a roller tire (3) shrink fitted to a roller core (2) of a roller-press roller (1) where the roller tire is expanded by heating and pulled off the roller core. This method is characterized in that the roller tire is inductively heated with an induction coil (4).

Abstract: The invention relates to a press roller for a roller press, in particular for briquetting, compacting or grinding granular material, having a roller core (1) and a roller sleeve fastened to the exterior of the roller core (1), said sleeve being composed of a plurality of segments (2), distributed over the circumference, with mutually facing lateral faces (3). The segments (2) have clamping shoulders (5) which extend around the front faces and have first clamping surfaces (8). The segments (2) are releasably fastened at each front face to the roller core (1) by means of at least one fastening ring (6), said fastening ring fitting over the clamping shoulders (5) of the segments (2).

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) which has a plurality of pocket-like recesses (3) that are distributed over the circumference and are spaced from one another in the circumferential direction (T) on one or both roll edges, each said recess being formed so as to be open laterally and at the top. Only one hard body is removably inserted into each individual pocket-like recess (3) as an exchangeable edge protection element (5), and the length (L) of the pocket-like recesses (3) and the length (I) of the inserted edge protection elements (5) in the circumferential direction (T) is greater than the distance (A) between two directly adjacent recesses (3).

Abstract: The invention relates to a hot-briquetting or hot-compacting installation, in particular for directly reduced iron, having at least one first row (1) of presses with one or more first roll presses (2), and having at least one second row (3) of presses with one or more second roll presses (4), having at least one first cooling conveyor (7) beneath the first row (1) of presses, and a second cooling conveyor (8) beneath the second row (3) of presses, and having a plurality of material lines (6), which are assigned in each case to the individual roll presses (2, 4) and via which the briquetted or compacted material exiting from the roll presses (2, 4) is discharged to the cooling conveyors (7, 8). The material lines (6) are provided with one or more diverters (9), which can be adjusted such that the material from the roll presses (2, 4) of the first row (1) of presses and of the second row (3) of presses is discharged optionally in each case to the first cooling conveyor (7) or to the second cooling conveyor (8).

Abstract: An apparatus for separating granular material into at least three fractions a static cross-flow sifter and a dynamic sifter. The static has several impact and flow-conducting elements stepped one below the other in a housing having a first material inlet, at least one sifting-gas inlet and at least one coarse-particle outlet. The dynamic sifter has a rod basket rotatable about a vertical axis, a housing containing the basket, and at least one medium-particle outlet and one fine-particle outlet. The housing of the static sifter merges directly horizontally and laterally into the housing of the dynamic sifter.

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.

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) which has a plurality of pocket-like recesses (3) that are distributed over the circumference and are spaced from one another in the circumferential direction (T) on one or both roll edges, each said recess being formed so as to be open laterally and at the top. Only one hard body is removably inserted into each individual pocket-like recess (3) as an exchangeable edge protection element (5), and the length (L) of the pocket-like recesses (3) and the length (I) of the inserted edge protection elements (5) in the circumferential direction (T) is greater than the distance (A) between two directly adjacent recesses (3).

Abstract: The invention relates to a device (1) for sifting granular material into at least three fractions, comprising at least one static sifter (2) forming a first sifting stage and at least one dynamic sifter (3) forming a second sifting stage, wherein the static sifter (2) has several impact installations and conducting installations (8, 9) arranged one below the other in the manner of stairs in a sifter housing (4) having a first material inlet (5), a sifting gas inlet (6), and a coarse material outlet (7), wherein the dynamic sifter (3) is designed as a rod basket sifter having a rotary rod basket (12) and has a sifter housing (11) having at least one medium material outlet (17) and one fine material outlet (18).

Abstract: A roller press, in particular for processing highly abrasive materials, includes at least two press rollers, each of which is provided with a wear protection layer arranged on a base body. The wear protection layer includes plate-shaped and pin-shaped wear resistant material elements. The plate-shaped, wear resistant material elements are applied to surfaces of two opposed edge areas of each base body by sintering with or without pressure, preferably by a hot isostatic pressing operation. The pin-shaped wear resistant material elements are arranged in a central section of each base body extending between the edge areas. A method of producing a wear protection layer, in particular for a press roller, is also provided.

Abstract: Foil sheets are removed from two stacks located one above the other on a stack rack by a swingable transfer assembly having a transfer platform along the sides of which guide rails carry a suction beam which, as the transfer assembly is swung up and down, can engage the uppermost foil sheet on one or the other stack. The suction beam draws the foil sheets onto the transfer platform where the foil sheet is oriented or aligned and from which the foil sheet is drawn onto a deposition station which can have belts carrying the laminate or in a direction orthogonal to the destacking transfer direction.