Wood chip burning stoker type furnace

Patent · Tue Mar 11 04:00:00 EST 1986

OSTI ID:5766938

David, E J

A heater is described for use in burning particulate combustible material such as wood chips or the like consisting of: means for storing a supply of the particulate combustible material including a container having a cover removably mounted thereon and during use being sealed so as to provide a sealingly closed container; means for feeding the particulate combustible material from the container to a burner in the heater comprising a first conveyor and a second conveyor for moving the particulate material along respective different flow paths from the container to a burner in the heater, a drop box between the first and second conveyor providing a contiguous flow path along the conveyor system for the particulate material and a normally closed one way flow valve means is the drop box preventing reverse flow through the drop box from the second to the first conveyor; and a burner in the heater comprising an open top container for holding the particulate material during burning thereof and having at least some of the walls thereof perforated for flow of air through the perforations, the second conveyor means discharging into the open top container of the burner through a side wall thereof, such side wall having perforations therein for use in directing combustion air into the container at least a portion of which flows in the direction of movement of the fuel supply into the container: wall means attached to and spaced from the container of the burner, such wall means and container providing effectively a double walled container with an air chamber therebetween: and first conduit means for providing an air flow path into the chamber of the double walled container.

• Assignee: NOV; EDB-86-093707
• Patent Number(s): US 4574712
• OSTI ID: 5766938
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090400* -- Solid Waste & Wood Fuels-- (-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
AIR FLOW
BURNERS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CONTROL
CONTAINERS
CONTROL
CONTROL EQUIPMENT
CONVEYORS
DESIGN
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FURNACES
GAS FLOW
HAULAGE EQUIPMENT
HEATERS
MATERIALS HANDLING EQUIPMENT
OXIDATION
PARTICLES
PARTICULATES
SEALS
STOKERS
THERMOCHEMICAL PROCESSES
VALVES
WALLS
WOOD