Gas: heating and illuminating – Generators – Retort
Patent
1982-09-08
1985-03-26
Kratz, Peter
Gas: heating and illuminating
Generators
Retort
48111, 110224, 110229, C10J 320, C10J 330
Patent
active
045071276
ABSTRACT:
This invention is a system for recovering resources from sludge in which sludge including water of 90 to 70 percent is first supplied to a sludge concentrator invented by the inventor through a forced supply equipment where the sludge is concentrated to have water content up to about 60 percent; then is sent to a drying furnace having a fluidized sand bed.
A product yielded in the said drying furnace is separated to gas and solid. After the separated gas is pressurized by a fan and is heated by a heat exchanger through a circulation passage, a required part thereof is supplied to the drying furnace as gas for drying and the remainder is sent to the said sludge concentrator. After the water content is removed from the gas concentrated and the gas yielded by the said sludge concentrator is used in the system as gaseous fuel. Further, the solid separated is dried and distilled through a gasifying apparatus designed by the inventor to recover gaseous fuel, and in addition, the separated solid is fed into an ash disposal equipment designed by the inventor; the ash generated from the gasifying apparatus is also supplied to the said ash disposal equipment to allow the ash to be melted and then to allow the ash to be solidified in the ash disposal equipment to take out the solidified one as massive ashes; the exhaust gases from these gasifying apparatus and ash disposal equipment are supplied to the said heat exchanger.
REFERENCES:
patent: 4060042 (1977-11-01), Baraldi et al.
patent: 4245570 (1981-01-01), Williams
patent: 4311103 (1982-01-01), Hirose
patent: 4388875 (1983-06-01), Hirose
patent: 4398476 (1983-08-01), Suzuki et al.
Kratz Peter
Nippon Furnace Kogyo Co., Ltd.
Woodard Joye L.
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