A screening apparatus for grading particulate material includes a grading screen having apertures for water and/or undersize particles to pass through. The grading screen is supported on a frame mounted on a chassis via resilient linkages, and the grading screen being vibrated by a vibrating device that imparts circular or reciprocating motion to the grading screen. The grading screen is set at a predetermined slope whereby material to be graded can be delivered onto an upper end while the grading screen is vibrated to convey the material over the grading screen and to cause undersize material to pass through the apertures. Oversize material is discharged from a lower end of the screen onto a conveyor or into a collection bay or hopper. A sump beneath the grading screen receives under-sized material passing through the grading screen, and a jet pump conveys material from the sump to a dewatering screen.

A washing apparatus comprises a tank in which rotatable, bladed shafts are located. The tank has a closable lower outlet located at a first end of the tank, and an upper outlet located at the first end of the tank, the upper outlet being higher than the lower outlet. A further outlet is located at a second end or between the first and second ends. The tank is disposed at an inclined angle such that the first end of the tank is lower than the second end of the tank, and is movable between a first inclined state in which the inclined angle is relatively shallow, and a second inclined state in which the inclined angle is relatively steep. The apparatus is able to perform the tasks of either a log washer or coarse material washer depending on the angle of inclination.

A method for controlling a data center, comprising a plurality of server systems, each associated with a cooling system and a thermal constraint, comprising: a concurrent physical condition of a first server system; predicting a future physical condition based on a set of future states of the first server system; dynamically controlling the cooling system in response to at least the input and the predicted future physical condition, to selectively cool the first server system sufficient to meet the predetermined thermal constraint; and controlling an allocation of tasks between the plurality of server systems to selectively load the first server system within the predetermined thermal constraint and selectively idle a second server system, wherein the idle second server system can be recruited to accept tasks when allocated to it, and wherein the cooling system associated with the idle second server system is selectively operated in a low power consumption state.

Systems and methods for separating heavier from lighter materials in mixed auto shredder residue (ASR) from end-of-life vehicles. Vehicles are shredded and the resulting mixed ASR is fed into a system that efficiently segregates heavier (typically metal) from lighter (typically plastic) pieces. The system has an inlet feed chute angled downward to a lower end over a separator tank filled with water. One or more nozzles configured to introduce water at a velocity into the separator tank create a flow of water across the tank to push smaller and lighter particles over an exit weir. Heavier particles sink toward a heavy matter removal conveyor having a lower end positioned within the separator tank so that the heavier particles are transported upward out of the separator tank. The heavy matter removal conveyor may be one or more Archimedes screws, a flat, ribbed or cleated conveyor, or a drag chain.

Systems and methods for separating heavier from lighter materials in mixed auto shredder residue (ASR) from end-of-life vehicles. Vehicles are shredded and the resulting mixed ASR is fed into a system that efficiently segregates heavier (typically metal) from lighter (typically plastic) pieces. The system has an inlet feed chute angled downward to a lower end over a separator tank filled with water. One or more nozzles configured to introduce water at a velocity into the separator tank create a flow of water across the tank to push smaller and lighter particles over an exit weir. Heavier particles sink toward a heavy matter removal conveyor having a lower end positioned within the separator tank so that the heavier particles are transported upward out of the separator tank. The heavy matter removal conveyor may be one or more Archimedes screws, a flat, ribbed or cleated conveyor, or a drag chain.

The present invention relates to an air jigging machine for the dry processing of raw materials, particularly coal, comprising at least one material feeding device (1), at least one jigging material carrier (2), which is provided with openings, an air funnel (3), which is arranged below the jigging material carrier (2) and by means of which an air flow can be fed as working air (4) to the jigging material carrier, which working air is composed of a partial flow constantly flowing through the jigging material carrier (2) and a pulsing partial flow superposed thereon, such that the working air (4) can flow through the material fed onto the jigging material carrier (2) and said material can be stratified into a heavy material layer (5) acting as a jig bed and into a light material layer (6) lying thereon, and a discharge device (7) for the heavy material and light material stratified on the jigging material carrier (2) during the jigging process.

The present invention relates to an air jigging machine for the dry processing of raw materials, particularly coal, comprising at least one material feeding device (1), at least one jigging material carrier (2), which is provided with openings, an air funnel (3), which is arranged below the jigging material carrier (2) and by means of which an air flow can be fed as working air (4) to the jigging material carrier, which working air is composed of a partial flow constantly flowing through the jigging material carrier (2) and a pulsing partial flow superposed thereon, such that the working air (4) can flow through the material fed onto the jigging material carrier (2) and said material can be stratified into a heavy material layer (5) acting as a jig bed and into a light material layer (6) lying thereon, and a discharge device (7) for the heavy material and light material stratified on the jigging material carrier (2) during the jigging process.

An apparatus and process mechanically remove hydrocarbons and other contaminants from solids through high energy slurry impact with a stationary plate or through high energy slurry impact of two or more slurry streams. In addition to the mechanical process, a gas additive, such as CO.sub.2, in solid, liquid or gas form, can be introduced into the slurry stream. The presence of gas additive can aid in the liberation of the contaminant. The process can increase efficiencies, reduce costs and improve thoroughness of contaminate cleaning in conjunction with aqueous pressure and sheer energy.

An apparatus and process mechanically remove hydrocarbons and other contaminants from solids through high energy slurry impact with a stationary plate or through high energy slurry impact of two or more slurry streams. In addition to the mechanical process, a gas additive, such as CO.sub.2, in solid, liquid or gas form, can be introduced into the slurry stream. The presence of gas additive can aid in the liberation of the contaminant. The process can increase efficiencies, reduce costs and improve thoroughness of contaminate cleaning in conjunction with aqueous pressure and sheer energy.

A treatment device for treating a mixture of at least a liquid, organic solids and inorganic, mineral solids, includes a container for receiving the mixture. The container tapers in a funnel shape in a direction of a longitudinal axis of the container. An inlet tangentially supplies the mixture to the container. An outlet discharges the liquid essentially containing the organic solids from the container. A discharge apparatus serves for discharging the inorganic, mineral solids. The treatment device also includes a sleeve adapted to guide the mixture between an outer wall of the sleeve and an inner wall of the container and to guide the liquid containing the organic solids within an inner wall of the sleeve for discharge from the outlet.