System for generating dry coal weight signal for coal feeder and

Details System for generating dry coal weight signal for coal feeder and System for generating dry coal weight signal for coal feeder and

1982-12-03

1984-02-14

Favors, Edward G.

Liquid heaters and vaporizers

Regulation

Fuel and water

110101C, 110101CC, 222 58, 414147, F22B 3742

Patent

active

044309635

ABSTRACT:
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.

REFERENCES:
patent: 4071166 (1978-01-01), Legille et al.
patent: 4313387 (1982-02-01), Sato
patent: 4373451 (1983-02-01), Gardner et al.

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