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Title:
PULVERIZED FUEL COMBUSTION DEVICE
Document Type and Number:
Japanese Patent JPS6419210
Kind Code:
A
Abstract:

PURPOSE: To improve a combustion efficiency by a method wherein a device for sending pulverized material into an oxygen-fuel burner is provided with a concentrated phase material fluidizing and transporting device.

CONSTITUTION: Propelling material is air or nitrogen and the mesh of pulverized material is between 150 micron and 75 micron (100-200 mesh). In a combustion device, a concentrated phase material fluidizing and transporting device can send the pulverized material of 20-30 kg into an oxygen-fuel burner per 1 kg of propelling material. The pulverized coal, reserved in a totally enclosed silo 1, is introduced into a coal injector 2 through an upper dome valve 3 and a lower dome valve 4. A motor 5 drives a device for introducing the pulverized coal into a supplying pipe 6. The pulverized coal is transported by air along the supplying pipe 6 while the air is introduced through a pipe 7. The pulverized coal is introduced into the central tube of the oxygen-fuel burner 10 while oxygen is supplied into the oxygen-fuel burner 10 through a pipe 11 and is mixed into the pulverized coal in the outlet port 12 of the oxygen-fuel burner 10.


Inventors:
FUIRITSUPU JIYON YANGU
Application Number:
JP1988000151572
Publication Date:
January 23, 1989
Filing Date:
June 20, 1988
Export Citation:
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Assignee:
AIR PROD & CHEM
International Classes:
F23L7/00; F23D1/00; F23K3/02; (IPC1-7): F23D1/00; F23L7/00
Domestic Patent References:
JPS62169908A1987-07-27
JPS60204A1985-01-05
JPS5816106A1983-01-29