Importance

Loading Importance Indicators...

Abstract

An improved biomass gasifier combustor system including a furnace, a screw feeder system for feeding a biomass fuel to the furnace and a venturi eductor system adapted for drawing a gaseous combustion product from a combustion chamber of the furnace is disclosed. The furnace enclosure forms a principal chamber in which a housing containing a secondary air chamber is disposed so as to form a partition in the principal chamber which divides the principal chamber into two regions, one of which regions is a gasification chamber and the other of which is a gas combustion chamber. A screw feeder including two separate augers connected to one another between the gasification chamber and a fuel storage source is also disclosed wherein the auger connected to the storage source is de-activated before the auger connected to the gasification chamber, whereby the latter auger empties itself of biomass fuel before de-activation such that a fire burning in the gasification chamber can not spread through the augers to the fuel storage source. An improved venturi eductor system and automatic control system for regulating the temperature in the combustion chamber and for diverting to ambient atmosphere a gaseous combustion product drawn from the combustion chamber into the eductor system when the temperature in the combustion chamber is below 1200.degree. F. and when the temperature at a remote location is greater than a desired maximum value is also disclosed.

Loading the Abstract Image...

First Claim