Combustion device

Details Combustion device Combustion device

2006-06-13

2006-06-13

Rinehart, Kenneth (Department: 3749)

Furnaces

With exhaust gas treatment means

Afterburning means

C110S265000, C110S347000

Reexamination Certificate

active

07059256

ABSTRACT:
The invention relates to an arrangement (1) for the combustion of granular, solid fuel, for example wood-flour pellets, chips and the like, comprising a preferably horizontal combustion chamber (16), a dispensing unit (3) for feeding the fuel into the combustion chamber via fuel feed pipe (15), air inlets (22, 23) with blower (18) for the delivery of primary air (P) to the combustion chamber via at least one air duct or air chamber (24, 25) in order to produce a flow of air through the combustion chamber and the fuel for a primary combustion of the fuel to combustion gases, and for the delivery of secondary air (S) to a secondary combustion chamber (26) via a secondary air distributor (26A) in order to produce a secondary combustion of the combustion gases formed in the primary combustion together with a common outlet (47) for the primary air, the combustion gases and the secondary air from the secondary combustion chamber to a boiler space (12) in a broiler (2) for transmitting the heat from the said primary and secondary combustion to the heat supply system of the boiler. According to the invention the secondary air distributor also comprises a fan (49) for producing an air and combustion gas vortex (50) inside the secondary combustion chamber and on out through the outlet (47) to the boiler space. The invention also relates to a method of combustion comprising such a combustion arrangement.

REFERENCES:
patent: 1819555 (1931-08-01), Herschell
patent: 4565137 (1986-01-01), Wright
patent: 4597342 (1986-07-01), Green et al.
patent: 4630554 (1986-12-01), Sayler et al.
patent: 5680822 (1997-10-01), Hallberg
patent: 2 671 166 (1990-12-01), None
patent: 2198519 (1988-06-01), None
patent: 2 079 910 (1990-07-01), None
patent: 450 734 (1982-12-01), None
patent: WO 94/17331 (1994-01-01), None
patent: WO 97/49951 (1997-06-01), None
International Preliminary Examination Report dated Apr. 26, 2002 for PCT/SE02/00824 and PCT Request.

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