System for generating dry coal weight signal for coal feeder and control system based thereon

Patent · Tue Feb 14 00:00:00 EST 1984

OSTI ID:6770414

Finet, A

A system for generating a dry coal weight signal is provided, wherein the moisture content of a coal feed to a solid fuel burner is determined, and the dry coal weight calculated on that basis. Moisture content is determined by measuring density of the coal being fed and/or the torque required to drive a head pulley about which the belt feeding the coal is led at a constant velocity. The dry coal weight signal can be communicated to the drive means, whereby the belt speed is accelerated or decelerated to maintain a constant supply of coal, on a dry weight basis, to the boiler. Also disclosed is a control system employing the dry coal weight signal for a plurality of control functions.

• Assignee: General Signal
• Patent Number(s): US 4430963
• OSTI ID: 6770414
• Resource Relation: Patent File Date: Filed date 3 Dec 1982; Other Information: PAT-APPL-446613
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BURNERS
CONTROL SYSTEMS
COAL
FUEL FEEDING SYSTEMS
WEIGHT MEASUREMENT
BELT CONVEYORS
COMBUSTION CONTROL
DENSITY
FEEDBACK
MOISTURE
SERVOMECHANISMS
TORQUE
CARBONACEOUS MATERIALS
CONTROL
CONTROL EQUIPMENT
CONVEYORS
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FUEL SYSTEMS
FUELS
HAULAGE EQUIPMENT
MATERIALS
MATERIALS HANDLING EQUIPMENT
PHYSICAL PROPERTIES
013000* - Coal
Lignite
& Peat- Transport
Handling
& Storage