Furnaces – Ash receiving and handling devices – Fly ash disposers
Patent
1983-10-05
1984-08-07
Favors, Edward G.
Furnaces
Ash receiving and handling devices
Fly ash disposers
48 77, 110171, 110229, F23J 100
Patent
active
044636865
ABSTRACT:
An apparatus for dry removal of hot residues resulting from a gasification of coal or carbon-containing solid materials in the lower region or a shaft-like fluid flow gasification reactor which is operated under pressure in downward flow. A wall-heating surface, having upward flow therethrough and having a tube-fin-tube construction, is disposed parallel to and on the inner side of the insulation of the pressure tank wall. This wall-heating surface tapers in the manner of a funnel from a large cylindrical diameter to a small cylindrical diameter. The wall-heating surface has a constricted throat, and thereafter passes over from the cylindrical cross section to the cross section of a four-cornered chamber. Inlet openings are located directly ahead of and at the narrowest point of the constricted throat for cold, clean product gas which is used as fluidizing and cooling gas. A size-reducing and conveying device in the form of two cooled crushing rings which operate in opposite directions is disposed after the constricted throat. Convection heating surfaces provided with small tube intervals are tied into the cooling medium circulation for the wall-heating surface. A shutoff or charging system is disposed directly below the entry region or the cooled wall-heating surface.
REFERENCES:
patent: 1988473 (1935-01-01), Bennett
patent: 2693775 (1954-11-01), Berry
patent: 4073244 (1978-02-01), Snowden
patent: 4126427 (1978-11-01), Eales
patent: 4312637 (1982-01-01), Loftus
patent: 4321877 (1982-03-01), Schmidt et al.
Favors Edward G.
L. & C. Steinmuller GmbH
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