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U.S. Department of Energy
Office of Scientific and Technical Information

Method of igniting a pulverized-coal pilot-burner flame

Patent ·
OSTI ID:5662984

A method of igniting a pulverized-coal pilot-burner flame for a pulverized-coal annular burner flame having an internal back flow region, with the ignition energy being introduced centrally into the interior of the back flow region of the pulverized-coal annular burner flame. To ignite the pilot-burner flame during the process of the initial ignition, at constant primary and secondary air flow and an air coefficient lambda-1.1 to 0.4, once or more a powder-laden air/powder mixture is supplied to the pilot-burner at a powder-laden air/powder weight ratio of 1.0 to 0.2. After ignition has been effected, a specified coal flow is continuously added to the pilot-burner flame at the fixed air coefficient lambda-1.1 to 0.4.

Assignee:
L and C Steinmuller GmbH (Germany, Federal Republic of)
Patent Number(s):
US 4501206
OSTI ID:
5662984
Country of Publication:
United States
Language:
English