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US 4,385,567 AGranted
Solid fuel conversion system
AssigneeSolid Fuels, Inc.
InventorGeorge D. Voss
Life of this patent
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AssigneeSolid Fuels, Inc.
InventorGeorge D. Voss
Estimating the term…
A solid fuel conversion system feeds solid fuel to a burning area at a controlled and metered rate. In the burning area, the solid fuel is dried before it reaches a burning bed of coals. Once it reaches the bed of coals, it is advanced at a controlled rate from said drying means through the area of the burning bed of coals to an ash area. The fuel-drying and advancing is carried out by a series of grates having controlled amounts of grate movement. The drying grate is set at a relatively steep angle (here, 60.degree.) which breaks the free-fall of an incoming curtain of solid fuel. The fuel-advancing is accomplished by a series of grates which are set at less than a free-fall angle (here, 15.degree.). A reciprocating feeder moves the fuel-advancing grates back and forth by the controlled amounts. The controlled rate of advance causes the solid fuel to gasify in the area over the burning bed. An air delivery system controls the flow of gaseous fuel from the solid fuel burning area to a gaseous burning area.
A solid fuel gasifying energy conversion system comprising means for delivering solid fuel from a feeder to a burning area at a controlled rate;
A solid fuel conversion system comprising means for feeding solid fuel into a burning area at a controlled and metered rate, means in said solid fuel burning area for drying said solid fuel before it reaches a burning bed of coals, said drying means comprising a grate set at a relatively steep angle which breaks a free-fall of incoming solid fuel, means for advancing said solid fuels at a controlled rate from said feeding means through the drying means and the area of said bed of coals to an ash area, said advancing means being a cascaded series of grates set at less than a free-fall angle, said controlled rate of advance causing said solid fuel to gasify while it is over the burning bed, refractory-lined feeder means positioned above said grate set at a relatively steep angle for introducing live coals to said grates, means for reciprocating said series of grates for moving said solid fuel in said controlled rate of advance, and combustion air delivery means for controlling the flow of gasified solid fuel to a gaseous burning area.
A method of converting solid fuel into energy comprising the steps of:
A method of converting solid fuel into energy comprising the steps of:
A solid fuel conversion system comprising means for introducing fuel into said system responsive to a demand for heat, means for moving said introduced fuel into and through a burning area at a controlled rate which establishes a bed depth that controls a stratification of the fuel in the burning area, the stratification maintaining the heat in the burning area at a temperature which gasifies said fuel in one stratification without complete combustion in that layer, and means for removing ash after said fuel passes through said bed, said means for introducing and said means for moving automatically control the depth of a resulting bed of fuel in said burning area to regulate the gasification of said fuel as a function of energy demand.
A method of converting solid fuel into energy comprising the steps of:
Dependencies are inferred from the claim text.