Underfed stoker boiler for burning bituminous coal and other solid fuel particles
An automatic stoker boiler is described for space or process heating with steam or hot water. The boiler includes a heat transfer compartment having a water inlet and an outlet for steam or hot water, an exhaust, a combustion chamber, a transverse partition in the chamber, drive and driven shafts below the chamber, sprockets supported by the shaft and an endless belt of the link type trained about the sprockets. There are also means to deliver underfire air upwardly through the upper course. The upper portion has a throat opening adjacent to the second end, heat exchanging passageways extending through the compartment, means to deliver overfire air into the chamber, means to deliver solid fuel particles to the upper course adjacent to the first end, means in the exhaust operable to induce draft in the upper portion and control means operable to effect the advance of the belt. There are means operable to deliver solid fuel to the upper course in predetermined, proportional increments, means to vary the induced draft by predetermined, proportional increments and means to adjust the underfire air volume by predetermined, proportional increments.
- Assignee:
- Dumont Holding Co., Monmouth, ME
- Patent Number(s):
- US 4697530
- OSTI ID:
- 5784838
- Resource Relation:
- Patent File Date: Filed date 23 Dec 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BITUMINOUS COAL
COMBUSTION
BOILERS
DESIGN
STOKERS
AUTOMATION
COAL FINES
COMBUSTION CHAMBERS
COMBUSTION CONTROL
EXHAUST SYSTEMS
HEAT EXCHANGERS
OPERATION
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
CONTROL
ENERGY SOURCES
FOSSIL FUELS
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FUELS
MATERIALS
OXIDATION
THERMOCHEMICAL PROCESSES
014000* - Coal
Lignite
& Peat- Combustion
320106 - Energy Conservation
Consumption
& Utilization- Building Equipment- (1987-)