Furnaces – Refuse incinerator – Refuse suspended in or supported by a fluid medium
Patent
1993-03-04
1995-03-28
Yuen, Henry C.
Furnaces
Refuse incinerator
Refuse suspended in or supported by a fluid medium
110106, 110347, 110263, F23G 500
Patent
active
054007259
ABSTRACT:
A method of feeding particulate material into a pressurized fluidized bed combustor including the steps of: feeding the particulate material from a source which is at a substantially lower pressure than that existing in the pressurized fluidized bed combustor into the upper end of an elongate, generally vertical gravity feed conduit constructed to have an inner bore which is substantially smaller at its lower end than at its upper end, and selecting the vertical height of the feed conduit and the extent of reduction in its bore over its length to ensure that the particulate material will move by gravity between the open input end of the conduit and the pressurized fluidized bed combustor notwithstanding the difference in pressure between the pressurized combustor and at the input end of the conduit.
REFERENCES:
patent: 3951081 (1976-04-01), Martin et al.
patent: 4092094 (1978-05-01), Lingl, Jr.
patent: 4349331 (1982-09-01), Floter
patent: 4392438 (1983-07-01), Dooley
patent: 4397248 (1983-08-01), Mehta et al.
patent: 4530290 (1985-07-01), Comparato
patent: 4690076 (1987-09-01), Peletz, Jr. et al.
patent: 5175943 (1993-01-01), Eastham et al.
ABB Carbon AB
Yuen Henry C.
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