A device for a crusher comprises a frame (2) for a crushing chamber (8). The frame comprises a crossmember (1), and the crushing chamber is delimited by a crushing jaw (5) that is drivably connected to a reciprocating piston (4) inserted into a hollow cylinder (3). To reduce the material fatigue, the weight and the space requirements of the device while achieving the same mechanical stability, the swept volume of the hollow cylinder (3) lies completely within the crossmember (1).

The application relates to a double acting demolition device according to one embodiment for demolishing structures. The device includes a first crushing jaw for crushing operation, a first cutting jaw for cutting operation, and a combination jaw. The first jaws are separate jaws. The combination jaw is attachable to the first cutting jaw for constructing a second crushing jaw and to the first crushing jaw for constructing a second cutting jaw. The second crushing jaw is used jointly with the first crushing jaw in crushing operation and the second cutting jaw is used jointly with the first cutting jaw in cutting operation. In crushing operation, the first crushing jaw rotates around a fulcrum other than that of the second cutting jaw in cutting operation.

A crusher apparatus includes a material crushing portion with a first crushing portion adapted for movement toward a second crushing portion. A linkage subassembly is connected to the first crushing portion and includes a first and second member operable about a pivot. A force inducing subsystem exerts a counterforce of a predetermined threshold amount to the first and second members sufficient to maintain the linkage subassembly in an unrelieved position until a crushing force exerted on the first crushing portion is sufficient to cause the linkage subassembly to move into a relieved position.

The present invention relates to a hydraulic breaker. The valve is installed on an inner surface of the cylinder bush and the cylinder inner diameter portion to be movable in the vertical direction. The valve includes an upper valve portion having an upper end surface on which the pressure of the upper cylinder chamber acts, a lower valve portion having a lower end surface on which the pressure of the upper cylinder chamber acts, a first valve expanded-diameter portion which is formed between the upper valve portion and the lower valve portion, of which an outer diameter expands to be greater than outer diameters of the upper valve portion and the lower valve portion, and in which a first upper valve hydraulic pressure area communicates with the first and second flow channels, and a second valve expanded-diameter portion which is formed between the first valve expanded-diameter portion and the lower valve portion, of which an outer diameter expands to be greater than an outer diameter of the first valve expanded-diameter portion, and in which the second upper valve hydraulic pressure area communicates with the fourth flow channel, and the pressure of the valve switching chamber acts on a lower valve hydraulic pressure area having an area greater than an area of the first upper valve hydraulic pressure area.

A destruction device capable of destroying a plurality of types of storage devices includes: a support plate mounting part to which a support plate is detachably mounted; a crushing member mounting part to which a crushing member is detachably mounted; a support plate detection part capable of detecting the support plate mounted on the support plate mounting part; a crushing member detection part capable of detecting the crushing member mounted on the crushing member mounting part; and a control unit that determines whether the support plate detected by the support plate detection part and the crushing member detected by the crushing member detection part correspond to a same type of storage device, and executes a crushing process for crushing the storage device upon determining that the support plate and the crushing member correspond to the same type of storage device.

A concrete/steel structure disassembling apparatus which comprises a triangular or T-shaped housing, and a suspension member is pivotably coupled to the triangular or T-shaped housing, and the suspension facilitates suspension of the triangular or T-shaped housing from a crane. At least a concrete/steel pulverizer apparatus is pivotably supported by the triangular or T-shaped housing, and the concrete/steel pulverizer apparatus comprises a pair of concrete/steel pulverizer arms for engaging with a desired section of a concrete/steel structure and pulverizing the same. The concrete/steel structure disassembling apparatus incorporates its own completely independent power module for supplying hydraulic power to the concrete/steel pulverizer apparatus and controlling operation of the at least one pair of concrete/steel pulverizer arms, and the power module is supported by the triangular or T-shaped housing.

A crusher includes a housing having an inlet and an outlet at opposite axial sides, an impeller positioned proximate the inlet of the housing, a shaft connected to the impeller and extending axially through the housing between the inlet and the outlet, at least two spaced apart support structures holding the shaft in the housing, a plurality of dynamic blades extending outwardly from the shaft, and a plurality of fixed blades extending radially inward from an inner wall of the housing and alternatingly positioned between the dynamic blades.

A crushing system for large-size natural gas hydrate rock samples, which mainly includes a crushing and stirring control subsystem, crushing and stirring execution subsystem and hydrate preparation subsystem. Full automatic control to parameter acquisition and experimental process is achieved by utilizing modern automation technology, including the function of automatically crushing the large-size natural gas hydrate rock samples and also monitoring, collecting and storing the drilling pressure, the torque and the internal furnace pressure and temperature parameters during the crushing process in real time, to provide reliable guarantee for the follow-up researches on crushing mechanism, crushing efficiency, drilling parameter optimization, rock crushing ability evaluation of a crushing tool and the like of the large-size natural gas hydrate rock samples and necessary experimental verification means for optimization of on-site exploiting construction conditions of natural gas hydrate.

A resettable relief system for a crusher is provided. A first linkage member is connected to a material crushing portion of the crusher is connected to a second linkage member in a hinged manner. A hydraulic device exerts forces to the linkage members sufficient to maintain them in an unrelieved position, until forces exerted on the linkage members from the material crushing portion exceed a predetermined threshold, and then permit said first and second linkage members to move into a relieved position.

The present disclosure relates to a method for producing polycrystalline silicon fragments. The process includes (a) providing a polycrystalline silicon rod, (b) working the surface of the silicon rod by means of a hammer or needle hammer to remove at least a portion of a layer of the surface of the polycrystalline silicon rod, and (c) reducing the silicon rod to fragments. Wherein an amount of impact energy expended by the hammer and/or needle hammer is from 1 J to 15 J.