Furnaces – Ash receiving and handling devices – Ashpans
Patent
1981-09-02
1982-09-28
Yuen, Henry C.
Furnaces
Ash receiving and handling devices
Ashpans
110234, 110175R, 122 2, F23J 106
Patent
active
043512488
ABSTRACT:
A heating boiler for substantially continuous controlled combustion of baled straw. The boiler includes a straw feed channel communicating with a combustion chamber having a combustion zone adjacent the rear wall of the combustion chamber, a flue gas heat exchange chamber above the combustion chamber in communication with a flue gas vent and an ash collecting pit below the combustion chamber. A horizontal floor is disposed between the combustion chamber and the ash collecting pit, the floor having a slot adjacent the rear wall of the combustion chamber for passage of ash from the combustion zone into the ash collecting pit and for intake of primary air into the combustion zone. A vertically rotatable ash stripper assembly extends from the rear wall of the combustion chamber, and serves to strip ash from the straw bale surface being combusted in the combustion zone. The ash stripper assembly can be rotated by means of a hollow shaft which also constitutes a secondary air intake. The boiler provides for substantially continuous combustion of the baled straw in a controlled fashion by restricting combustion to the area of the combustion zone adjacent the rear wall of the combustion chamber.
REFERENCES:
patent: 297170 (1884-04-01), Rumely
patent: 2540670 (1951-02-01), Hoenecke
patent: 3282233 (1966-11-01), Richter
patent: 4084521 (1978-04-01), Herbold et al.
patent: 4102279 (1978-07-01), Groschl et al.
patent: 4312278 (1982-01-01), Smith et al.
Kelman Kurt
Yuen Henry C.
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