Sawdust and wood chip burner

Details Sawdust and wood chip burner Sawdust and wood chip burner

1981-11-02

1983-01-04

Yuen, Henry C.

Stoves and furnaces

Hot-air furnaces

Compressed air

126121, 110108, 110116, 110118, F24H 302, F24B 700

Patent

active

043668020

ABSTRACT:
A sawdust and chip burner for use with an existing furnace for heating water or a forced air system. The burner overcomes a previously known deficiency in prior burners in overcoming burn-back, the latter meaning creeping of combustion back into the stored fuel. The burn-back hazard is overcome in the present invention by the provision of double-walling of the fuel hopper adjacent the exit thereof and the supplying of cooling air through the passage formed by the double walling. In addition to preventing burn-back, the cooling air exits at a higher temperature and the thus heated air may be used to augment the heat output from the burner.

REFERENCES:
patent: 1944488 (1934-01-01), Bertossa
patent: 3171400 (1965-03-01), Heiman
patent: 3889653 (1975-06-01), Scogin
patent: 4201187 (1980-05-01), Skow
patent: 4230268 (1980-10-01), Gorman et al.
patent: 4325310 (1982-04-01), Babbage

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