Abstract: The invention relates to a device for comminuting feedstock (1) of any type, in particular made of plastic, preferably of PE, comprising a feeding apparatus and a comminuting apparatus (6), wherein the feeding apparatus (2) comprises a trough (3) to receive the feedstock (1) and conveying means (4) for conveying the feedstock (1) to the comminuting device (6) or into the comminuting device (6), and wherein the comminuting device (6) comprises a planar tool holder (9) equipped with tools (10), in particular cutting tools, on its operating side, characterized in that the tool holder (9) performs an oscillating motion relative to the feedstock (1).

Abstract: A jaw crusher including a body, a fixed jaw, a shaft which is arranged horizontally and in direction of a crushing surface of the fixed jaw, and a pitman which is eccentrically movable in relation to the shaft, wherein an electric motor is arranged between the pitman and the shaft. A mineral material processing plant. A method for driving a jaw crusher including a body, a fixed jaw, a shaft which is arranged horizontally and in direction of a crushing surface of the fixed jaw, and a pitman which is forming a crushing chamber with the fixed jaw, the method including moving the shaft eccentrically in relation to the pitman, the method further including the steps of arranging an electric motor between the pitman and the shaft and rotating the shaft by the electric motor.

Abstract: The present invention relates to a separating device for crushing concrete. The separating device comprises at least two crusher members which, optionally in co-action with bounding elements situated adjacently of the at least two crusher members, define at their upper outer ends an inlet opening for concrete to be crushed and at their lower outer ends an outlet opening for crushed concrete or at least concrete fractions. The separating device further comprises a drive device adapted to move repetitively at least a part of one of the two crusher members in the direction away from and toward the other crusher member. Outlet restriction means are provided under the outlet opening to limit an outflow of crushed concrete and/or concrete fractions. The invention further relates to a method for crushing and separating a composite material, in particular concrete, into original components.

Abstract: A front end of a frame of a jaw crusher comprises a curved front wall for receiving crushing force. The front end comprises an inner rib structure formed to the curved front wall. A jaw crusher and a crushing plant.

Abstract: A mobile crusher includes: a crusher having a fixed jaw and a swing jaw and adjusting an outlet gap between lower ends of the fixed jaw and the swing jaw, the crusher crushing raw materials by swing movement of the swing jaw toward the fixed jaw and discharging the raw materials crushed by the crusher from the outlet gap to produce crushed materials; a work implement disposed on an upper stream or a lower stream of the crusher to produce the crushed materials; and a controller that controls a work implement speed of the work implement depending on the outlet gap.

Abstract: A mobile crusher includes: a crusher having a fixed jaw and a swing jaw and adjusting an outlet gap between lower ends of the fixed jaw and the swing jaw, the crusher crushing raw materials by swing movement of the swing jaw toward the fixed jaw and discharging the raw materials crushed by the crusher from the outlet gap to produce crushed materials; a work implement disposed on an upper stream or a lower stream of the crusher to produce the crushed materials; and a controller that controls a work implement speed of the work implement depending on the outlet gap.

Abstract: The invention provides a cutter for a method of crushing and breaking casting products utilizing a casting product crushing and breaking apparatus and is constituted such that front end side mountain portions 44 and 54 are provided at front end sides of cutters 42 and 52 opposed to each other and bottom side mountain portions 43 and 53 are provided on bottom sides thereof. Therefore, there can be carried out operation of pressing useless casting products and operation of crushing and breaking thereof between the front end side mountain portions and the bottom side mountain portions provided at the respective cutters of one and other cutting apparatus. Useless casting products of long objects can be crushed and broken firmly and smoothly. Cutting dimensions are substantially made constant and by making the cutting dimensions substantially constant, melting operation can be made efficient.

Abstract: A jaw crusher having a dynamically adjustable tramp iron relief system is disclosed. A moveable jaw and a stationary jaw define a crushing chamber, with a lower portion of the moveable jaw cooperating with a lower portion of the stationary jaw to define a closed side setting gap. A hydraulic tramp iron relief system operatively connects at least one of the jaws to the frame and is arranged to permit uncrushable material to pass through the crushing chamber by permitting the lower portion of the jaw to shift to a shifted position in which the gap is increased. The tramp iron relief system includes an adjustable hydraulic cylinder, the hydraulic cylinder arranged to permit the gap to be adjusted during operation of the crusher.

Abstract: It is an object of the present invention to provide a layout of a crushing-breaking apparatus capable of achieving a full-automated factory, improving the efficiency in operation and ensuring the safety. The layer comprises a crushing-breaking apparatus for crushing and breaking sprues, weirs, runners of casting products and useless casting products, the apparatus being arranged at a predetermined position in the factory, a feeding device sequentially supplying the sprues, weirs, runners of casting products and the useless casting products to the apparatus, and a discharging device sequentially conveying recyclable casting products crushed and broken by the apparatus. The layout is characterized in that the feeding device, the apparatus, and the discharging device are arranged adjacent to one another so as to carry out a series of procedures.

Abstract: A crusher for materials such as rock is described. Material is crushed between an inclined anvil and a vibrating impact surface. The impact surface is driven by high intensity pressure pulses which are generated by creating repeated water hammers in a low pressure high volume hydraulic circuit. The water hammer may act directly to drive a piston bearing the impact surface toward the anvil. In another configuration of the invention, the water hammer pulse stores energy by stretching a tension member or by distorting a plate. When the water hammer pulse passes the stored energy suddenly drives the impact surface towards the anvil. The crusher of the invention has few moving parts and is energy efficient.

Abstract: Rubber particles having textile and/or metallic inclusions are treated by first placing the particles on a support surface and then pressing the particles against the support surface in a direction transverse to the support surface with a surface of a press body exerting a pressure of in excess of 10 kg/cm.sup.2 without contacting the surfaces with each other. Both of the surfaces are nonsmooth. In accordance with the invention the support surface and the press body are relatively displaced in a direction generally parallel to the support surface to subject the particles to shear.

Abstract: An apparatus for fragmenting a block of frozen vegetable tissue such as peat moss, without causing wide-spread damage to the individual vegetable fibers, comprising a pair of planar jaw members movable between opened and closed positions. Each jaw member has a grating-like configuration defining a plurality of discharge apertures in a spaced apart relationship and also comprises projecting crushing teeth. In the closed position, the jaw members are in a mating relationship, whereby the crushing teeth of each jaw member deeply penetrate the discharge apertures of the opposite jaw member. In operation, a block of frozen vegetable tissue is loaded between the jaw members while they are in the opened position. The jaw members are closed for bursting into fragments the block of frozen vegetable tissue under the effect of multiple pressure points created by the crushing teeth on the block surface and for expelling the fragments through the discharge apertures.

Abstract: A pallet shredding apparatus comprising an inclined chute having an open upper end to receive pallets to be shredded and having an open lower end. The chute is moved in a reciprocating path of travel by a hydraulic cylinder unit. A stop is connected to the chute and is spaced from the lower end of the chute in a position to be engaged by the projecting end of the pallet. A pair of fixed blades are mounted in spaced relation and are adapted to be engaged by the projecting end of the pallet as the chute is moved to thereby shred the lower projecting end of the pallet.

Abstract: A jaw crusher with a pass-through preventing device which prevents a flat plate-shaped object from passing through without being crushed. Also disclosed is a jaw crusher with a tooth plate structure which is capable of effectively crushing a non-rigid object, for example, a lump of asphalt, without causing such an object to stick to the area between a cheek plate and a fixed tooth plate or a movable tooth plate. The jaw crusher comprises a plurality of forks which are provided at the lower end of a crushing space to prevent a plate-shaped object from passing through the crushing space without being crushed, and a fork shaft which is provided with one end of each fork and which is rotatably provided on the crusher body. The movable tooth plate is provided with cutting projections. A plate-shaped object is first broken by the cutting projections and then crushed by intermediate projections.

Abstract: A jaw-type rock crusher has a stationary jaw, a cantilevered swing jaw driven by a toggle drive system, and a top feed opening above the crushing chamber formed between the two jaws. Two lateral hinge supports having an elevated horizontal hinge axis which lies in a plane generally bisecting the crushing chamber hingedly engage lateral support arms forming the upper hinge section of the swing jaw. In accordance with the invention, the lateral hinge supports and the swing jaw's upper support arms straddle the frame of the crusher and its top feed opening to allow the top feed opening to extend behind the swing jaw's hinge axis thereby permitting larger rock to be fed into the crusher and permitting easier access into the crusher for the purpose of dislodging or breaking up over-sized rock. A shock-absorbing back wall positioned behind the hinge axis near the top of the crusher prevents the impact forces of rock fed into the feed opening at high velocities from being fully absorbed by the swing jaw's bearings.

Abstract: A jaw crusher is equipped for the first time with a horizonal crushing chamber and, for replacement of gravity for the conveyance of the material being crushed through the crushing chamber, with an abutment comprising a chain conveyor. The mechanism for applying the crushing force on the jaw rocker (10) is selected so that the action is equivalent to that of a double bell-crank jaw crusher even for hardest material and in particular for recycling material such as reinforced concrete.

Abstract: An apparatus for crushing mine ore or hard rock primarily for initial reduction for transport of the material for further processing which is characterized by an extremely low vertical profile relative to its size and capacity. The crushing jaws which form the crushing chamber are uniquely arranged in an inclined relationship with the lower jaw mounted for eccentric movement relative to the upper jaw which is stationary to provide efficient crushing action and efficient movement of the crushed material through the chamber while also permitting the associated inlet feed apparatus to be disposed at a low attitude. Means are included to provide for varying the size of the discharge opening and for varying the action of the moveable crushing jaw to permit greater versatility in the proper processing of a given material.

Abstract: A portable hard rock crusher unit especially useful for low clearance underground mines. Material to be crushed is horizontally fed to the rotary crusher jaws. A curved convergent material flow-path is employed between two crusher jaws. The outer member of the crusher is a substantially stationary outer curved concave jaw and its inner jaw member is a cylindrical element mounted to give eccentric motion on a shaft. The inner member may freely rotate on its eccentric or it may also be rotatably driven. Material fed between the inner and outer jaw members of the crusher encounters a progressively narrower opening as it is crushed and moved by the peristaltic pumping action caused by the eccentric motion of the movable inner crusher element acting against the outer stationary jaw.

Abstract: A horizontal-type single toggle jaw breaker for crushing medium to large size materials, for example, coal and other minerals, which are advanced on a conveyor having an upper reach and a lower reach, comprises a fixed jaw mounted over the upper strand with a pivotal jaw mounted for pivotal movement alongside the fixed jaw pivoting about a substantially vertical axis. A toggle joint has a drive portion connected to the pivotal jaw which includes a drive motor and a transmission with an output shaft which is connected to the toggle joint through an eccentric. In addition, a flywheel is disposed between the upper and lower reaches of the conveyor and it includes a flywheel shaft having a gear thereon which is driven from an intermediate gear driven off the output shaft of the transmission.

Abstract: A mobile rock collecting and crushing apparatus is disclosed which is specially adapted to be drawn behind and powered by a farm or garden tractor, for collecting rocks from fields, crushing them and expelling the crushed rock back to the field. The conventional power take-off shaft at the rear of the tractor turns a common drive shaft for reciprocating crushing blocks and for a rock collector and elevator. Provision is made for adjusting the fineness of the crushed rock expelled from the machine.