Ignition burner apparatus for pulverized coal

Details Ignition burner apparatus for pulverized coal Ignition burner apparatus for pulverized coal

1989-10-05

1991-02-12

Favors, Edward G.

Furnaces

Utilizing powdered fuel

110185, 110264, 110347, F23D 100

Patent

active

049915207

ABSTRACT:
The present invention relates to a pulverized coal ignition burner apparatus for use with a pulverized coal boiler or the like for a thermal power plant. The apparatus is so constructed that the pulverized coal is directly burned without generation of a large amount of NOx and without using auxiliary fuel such as light oil, heavy oil and gas that are needed in the conventional apparatus. In the pulverized coal burner apparatus, an ignition region (39) in which a density of the pulverized coal of the mixture of the air and the pulverized coal supplied from a pulverized coal supply source (18) to a pulverized coal burner (4 to 9) by means of a delivery system (23, 50) is enhanced and the flow rate of the mixture flow is low is formed within the pulverized coal burner. The pulverized coal within this region is ignited by an igniter (41).

REFERENCES:
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patent: 4333405 (1982-06-01), Michaelfelder et al.
patent: 4412810 (1983-11-01), Izuma et al.
patent: 4545307 (1985-10-01), Morita et al.
patent: 4602575 (1986-07-01), Grethe

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