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Waste treatment process and apparatus

Patent Number: 8109218
Publication Date: 2012-02-07
Inventors: Ismail, Saeed; Chapman, Chris; Ovens, David; Deegan, David

A process for the treatment of waste, the process comprising either a gasification step or a pyrolysis step to produce an offgas and a non-airborne, solid char material; followed by a plasma treatment step. An associated apparatus having a plasma treatment unit which is separate from the gasification unit or pyrolysis ...

Method, device and system for enhancing combustion of solid objects

Patent Number: 8109217
Publication Date: 2012-02-07
Inventors: Pedersen, Niels Hald; Krebs, Niels; Cramer, Jesper

A system, device and method for enhancing burning of a solid object in a combustion process is provided where one or more incineration devices (101) for burning a solid object (101), at least one sonic device (301) and wherein said at least one sonic device (301) is a transmitter of high intensity-ultrasound adapted to, during use, apply high intensity ultrasound to said solid object (101) thereby removing ash from said solid object (101) and ...

Deflector device for coal piping systems

Patent Number: 8104412
Publication Date: 2012-01-31
Inventors: Zarnescu, Vlad; Penterson, Craig A.

A deflector device for improving particle distribution within a coal piping system includes a base defining an outer circumference. The base is configured to be mounted inside a pipe such that the base extends partially around the inner circumference of the pipe with the circumferences of the pipe and base being substantially aligned concentrically. A deflector extends radially inward from the base. The deflector is configured to direct a concentrated flow of coal particles toward the ...

Hybrid feed mechanism

Patent Number: 8100066
Publication Date: 2012-01-24
Inventor: Stein, Peter

A feed mechanism in which a ram (2) fed from a hopper (1) compresses a fuel against a closed valve (11) which is then opened for the ram to push the fuel towards a rotary scroll (6) for delivery to a processing ...

Flue dust discharging method and system

Patent Number: 8100065
Publication Date: 2012-01-24
Inventors: Liu, Shih-Hsien; Fu, Ting

A dust discharging system for a blast furnace includes a dust collector for collecting flue dust from flue gas produced from the blast furnace, a first discharge conduit connected to the dust collector, a separator connected to the first discharge conduit for separating residual flue gas present in the flue dust, and an airtight tank disposed below the first discharge conduit to receive the flue dust in a dry state separated from the residual flue ...

Fuel staging methods for low NOx tangential fired boiler operation

Patent Number: 8100064
Publication Date: 2012-01-24
Inventors: Schindler, Edmund S.; Garrad, Nigel John; Berg, Lawrence D.; Halloran, John Joseph; Collette, Robert J.

A tangential fired boiler includes a circumferential wall defining a combustion zone, the circumferential wall being generally rectangular when viewed along a generally horizontal cross-section. A fireball is disposed within the combustion zone, the fireball rotating about an imaginary axis when viewed along a generally horizontal cross-section. A corner member is disposed proximate to at least one corner of the combustion zone, with a plurality of fuel inlets disposed along the corner ...