Jaw crusher systems, methods and apparatus are provided. In some embodiments, a tensioning system is provided for resiliently maintaining a force on a toggle plate during operation of a jaw crusher. In some embodiments, one or more jaw die supports are provided for supporting at least one of a movable jaw die and a fixed jaw die.

A machine that applies both cutting and shearing action to casting-type metal debris and scrap (hereafter debris), and thus efficiently reduces both brittle and ductile metals to a useful size. The machine comprises a fixed anvil and a reciprocating jaw, the anvil defining an array of spaced anvil plates and the jaw defining a complementary array of spaced jaw V-shaped jaw bars whose upper and lower legs or lobes are alternately reciprocated in an arc into and out the anvil plate array.

A blade plate for crushers to be installed on a fixed side or a moving side, includes a base material part and many blade parts arranged on the surface of the base material part. The blade part includes a diamond blade part having an edge formed of a corner between a belt-like part and an inclined part, and a chevron blade part which is configured in a polyhedral shape having an edge formed of a corner between a cross-shaped tip end belt-like part and a foot part and an edge formed of a corner between an inclined belt-like part and a foot part, and which is bound to an intersection place of the diagonal lines of the diamond blade part. Also provided is a crusher which utilizes the blade plate.

A blade plate for crushers to be installed on a fixed side or a moving side, includes a base material part and many blade parts arranged on the surface of the base material part. The blade part includes a diamond blade part having an edge formed of a corner between a belt-like part and an inclined part, and a chevron blade part which is configured in a polyhedral shape having an edge formed of a corner between a cross-shaped tip end belt-like part and a foot part and an edge formed of a corner between an inclined belt-like part and a foot part, and which is bound to an intersection place of the diagonal lines of the diamond blade part. Also provided is a crusher which utilizes the blade plate.

A tooth shroud for a demolition tool is disclosed wherein forces produced during demolition operations may be dissipated so as to avoid excessive forces at stress points. A tooth block for a demolition tool comprises a first tooth shroud and a second tooth shroud. The first and second tooth shroud each comprising a body having a front wall and an end wall wherein a cavity is enclosed by the front wall and the end wall; an impact member extending longitudinally from the body; and a cut-out disposed on the end wall, wherein the first tooth shroud is connected to the second tooth shroud.

A tooth shroud for a demolition tool is disclosed wherein forces produced during demolition operations may be dissipated so as to avoid excessive forces at stress points. A tooth block for a demolition tool comprises a first tooth shroud and a second tooth shroud. The first and second tooth shroud each comprising a body having a front wall and an end wall wherein a cavity is enclosed by the front wall and the end wall; an impact member extending longitudinally from the body; and a cut-out disposed on the end wall, wherein the first tooth shroud is connected to the second tooth shroud.

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.

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.

A system including a nearly horizontal jaw movable to reduce a size of frangible material, a stationary cover around a top side of the jaw, an area is defined between an outer surface of the jaw and an inner surface of the cover, and a drive mechanism to cause the jaw to move to vary the area between the cover and the jaw to reduce the size of frangible material within the area. Another system and method are also disclosed.

A system including a nearly horizontal jaw movable to reduce a size of frangible material, a stationary cover around a top side of the jaw, an area is defined between an outer surface of the jaw and an inner surface of the cover, and a drive mechanism to cause the jaw to move to vary the area between the cover and the jaw to reduce the size of frangible material within the area. Another system and method are also disclosed.