Method and apparatus for feeding fuel into a pressurized space

Details Method and apparatus for feeding fuel into a pressurized space Method and apparatus for feeding fuel into a pressurized space

1990-12-04

1992-03-17

Favors, Edward G.

Furnaces

Fuel feeders

Feeder responsive to fuel bed height

110104R, 110109, 110114, 110267, 414187, F23K 300

Patent

active

050958259

ABSTRACT:
A method and apparatus for feeding solid material into a pressurized combustion or gasification plant in stages. The feed apparatus (10) is provided with an inlet (18), sluice chamber (30), and outlet (20). In a loading stage, solid material is conveyed through the inlet into the sluice chamber. The loaded sluice chamber is transferred to an unloading stage. During the transfer stage, the inlet (18) is closed. During the unloading stage, solid material is conveyed through the outlet (20) into a pressurized space (26). The volume of the sluice chamber (30) is adjustable so that the volume is enlarged during the loading stage and reduced during the unloading stage. The volume is adjusted e.g. by a piston (38).

REFERENCES:
patent: 4033467 (1977-07-01), Bewley et al.
patent: 4037736 (1977-07-01), Pownall et al.
patent: 4150759 (1979-04-01), Bell, Jr.
patent: 4250817 (1981-02-01), Michel
patent: 4400125 (1983-08-01), Jensen
patent: 4787535 (1988-11-01), Angly
patent: 4790692 (1988-12-01), Bunyoz et al.

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