A waste processing apparatus is disclosed, comprising a waste processing vessel for holding waste and treatment fluid during processing; and a blade arrangement provided in the waste processing vessel, for shredding the waste; the waste processing vessel comprising a waste processing zone, in which fluid can be retained, such that waste provided to the waste processing vessel can be shredded by the blade arrangement and immersed in treatment fluid in the waste processing zone. A related method of waste treatment is also disclosed, as is a use of a solution comprising a disinfectant and a diluent in the treatment of biohazardous waste, wherein the disinfectant comprises peracetic acid and hydrogen peroxide.

A control system for a waste processing apparatus is disclosed. The control system comprises a controller configured to: control an actuator of the waste processing apparatus to move a shredding device of the waste processing apparatus into at least a shred position in which a vessel of the shredding device is able to hold liquid; control a fluid delivery device of the waste processing apparatus to deliver a treatment fluid into the vessel of the shredding device; and control the shredding device to perform a shredding function to shred waste within the vessel of the shredding device.

A crusher having (a) a crusher frame, (b) a crusher rotor with teeth supported on the crusher frame, (c) counter-blade structures within the crusher frame; and (c) upper and lower hatches. The crusher rotor and the counter-blade structures are configured within the crusher so that material fed into the crusher frame can be crushed between the crusher teeth and the counter-blade structures. The upper and lower hatches are hinged to the crusher so that the hatches can be separated to provide an opening through which foreign material may be removed from the crusher while preventing material feeding into the crusher rotor from flowing out of the crusher.

A material reducing machine includes a rotary reducing drum that is rotatable about an axis of rotation and defines a reducing boundary that extends at least partially around the axis of rotation. The material reducing machine includes an infeed conveyor for transporting material to a front portion of the rotary reducing drum and defines a conveyor plane. The material reducing machine includes a mill box at least partially surrounding the rotary reducing drum and including a mill box lid mounted generally above the rotary reducing drum. The mill box lid has an inlet edge positioned above a rear portion of the rotary reducing drum and an outlet edge positioned above the front portion of the rotary reducing drum. The mill box includes an infeed opening that is configured to receive material from a feed table and has an upper opening defined by the outlet edge of the mill box lid.

Shredding device for shredding material comprising a housing: a rotor and one or more counter blades which are arranged in the housing such that they interact for shredding the material; a pusher element that is movable such that it pushes the material to be shredded in the direction towards the rotor and the counter blades; a hopper for feeding the material which is arranged movable on the housing between a first and a second position, where, in its first position, the material may be fed to the rotor and the counter blades, and in its second position, the rotor and the counter blades are freely accessible from the exterior of the shredding device.

A granulator includes a rotary crushing blade for crushing an object to be processed that has been fed into a main body. A stationary granulating blade includes a plurality of small shearing blades below the rotary crushing blade. A movable granulating blade includes a plurality of shearing blades below the rotary crushing blade. The granulator includes an oscillating shaft pivotably supporting the movable granulating blade so as to be oscillatable in directions in which the movable granulating blade moves toward or away from the stationary granulating blade. A driving mechanism is provided for oscillating the oscillating shaft, in which the movable granulating blade is detachably fixed to a movable blade holder and the movable blade holder is detachably fixed to the oscillating shaft.

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 cutter bar has a cutter body with a substantially rectangular cross section formed by an upper face, two side faces and a lower face. The upper face together with at least one side face defines a cutting edge, which is formed by one or more hard metal profile strips fastened in a groove in the cutter body. The wall of the groove which adjoins the upper face of the cutter body encloses with the upper face of the cutter body an angle less than 90, preferably 89 to 15, particularly preferably 80 to 40. The wall of the groove which adjoins the lateral face of the cutter body encloses with the lateral face of the cutter body an angle less than 90, preferably 89 to 15, particularly preferably 80 to 40. The hard metal profile strip or hard metal profile strips is or are positively inserted in the groove.

Grinding sections for food waste disposers, food waste disposers having grinding sections, and methods of manufacturing food waste disposers having grinding sections are disclosed herein. The grinding sections include an internal wall having a plurality of projections extending into the food receiving area. Grinding inserts are attached to each projection. The grinding sections may be made by molding the grinding section housing with the projections and attaching the grinding inserts into the projections.

A shredding device for use in the field of recycling and waste processing has a shredding roller having a basic roller body rotatable about an axis and a feed means for feeding material to the shredding roller, wherein shredding tools are provided on the basic roller body, which are spaced apart from one another and are arranged in rows extending in the longitudinal direction of the basic roller body and extending obliquely with respect to the longitudinal direction. A larger quantity of material is produced at the first end than at the second end of the basic roller body, wherein directly adjacent shredding tools of a row are arranged such that the shredding tool facing the second end is set back in the direction of rotation relative to the shredding tool facing the first end and/or wherein different distances are provided between directly adjacent shredding tools of a row.