Furnaces – With exhaust gas treatment means – Afterburning means
Patent
1985-09-03
1986-07-08
Favors, Edward G.
Furnaces
With exhaust gas treatment means
Afterburning means
110102, 110118, 110259, F23B 500, F23C 900, F23G 700
Patent
active
045986495
ABSTRACT:
A particle fuel burning furnace has an upper combustion chamber holding a pile of particle fuel and burning the same from the bottom. The furnace includes a lower combustion chamber for afterburning combustible gases off by burning solid fuel in the upper chamber and replaceable refractory bricks containing a series of spaced vertically-extending passageways interconnecting the bottom of the upper chamber and the top of the lower chambers for communicating combustible gases from the upper to the lower chamber. An improved particle fuel diversion structure in the furnace includes an elongated fuel diverter block having a recessed dome-shaped cavity therein and open at a bottom side and spacer blocks disposing the diverter block in the upper chamber in spaced relationship above the bottom of the upper chamber and with its recessed cavity overlying the bricks containing the passageways. Furthermore, the bricks extend above the bottom of the upper chamber and into the recessed cavity of the diverter block. The diverter block coacts with the upper chamber bottom and the passageway-containing bricks to define a flow path from the upper chamber to the lower chamber which passes along the bottom of the upper chamber under the diverter block, upwardly into the recessed cavity of the diverter block, and inwardly over the bricks and downwardly into the passageways. In such configuration, the flow path causes an increase in the dwell time of flow entrained particles in the upper chamber to promote combustion before they reach the lower chamber.
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Eshland Enterprises, Inc.
Favors Edward G.
Flanagan John R.
Swartz Michael R.
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