Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1979-03-13
1980-12-02
Camby, John J.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 57R, 34 72, F26B 308, F26B 310
Patent
active
042363187
ABSTRACT:
A method and apparatus are provided for heating and/or drying particulate materials such as coal wherein the particulates are fed into a fluidizing chamber, carried in a stream of heated oxygen-free gas at a temperature sufficiently high to heat the particles to a preselected temperature. The particles are then removed from the gas stream at the preselected temperature and then the gas is reheated in a heat exchanger and recycled. Where the particulate material to be dried yields a vapor, such as steam, the vapor is used as the transport or fluidizing gas. Means are provided for removing and/or condensing such vapor beyond the amount needed for fluidization.
REFERENCES:
patent: 2132656 (1938-10-01), Smith
patent: 2666269 (1954-01-01), Parry
patent: 3212197 (1965-10-01), Crawford
patent: 3773892 (1973-11-01), Reimann et al.
patent: 3800427 (1974-04-01), Kemmetmueller
patent: 3985517 (1976-10-01), Johnson
patent: 4043049 (1977-08-01), Hedstrom
patent: 4153427 (1979-05-01), Bissett et al.
Heard Harold
Wilt, Jr. Charles R.
Camby John J.
Salem Corporation
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