Method and apparatus of gas-coal combustion in steam boilers

Details Method and apparatus of gas-coal combustion in steam boilers Method and apparatus of gas-coal combustion in steam boilers

1983-06-02

1986-02-25

Favors, Edward G.

Furnaces

Including fluid fuel burner

Powdered solid fuel

110264, 110265, 110266, 110347, 431 4, 431 9, 431173, 431137, 431284, F23C 110

Patent

active

045720843

ABSTRACT:
Various embodiments of apparatus and methods are disclosed for the conversion of steam boilers from being oil fired to coal and natural gas fired without adversely affecting the normal power density of the boilers or the emission pollution therefrom. In some cases even the resultant coal ash can be modified by injecting a powdered catalyst or phosphate slimes into the flame to produce a fertilizer ash having desirable minerals to enhance the economic value thereof.
Basically all embodiments include a swirling coal-air mixture directed along a path to form a sheath and a swirling gas-air mixture internally thereof with the swirling of the latter being in the same direction and fortifying the motion of the former. A gas-air mixture, swirling or non-swirling, may be supplied outwardly of such sheath to enhance the more complete burning of the coal-air mixture.

REFERENCES:
patent: 2755750 (1956-07-01), Escher
patent: 3302596 (1967-02-01), Zinn
patent: 3393650 (1968-07-01), Daman et al.
patent: 3746498 (1973-07-01), Stengel
patent: 4060041 (1977-11-01), Sowards
patent: 4094625 (1978-06-01), Wang et al.
patent: 4147116 (1979-04-01), Graybill
patent: 4208180 (1980-06-01), Nakayasu et al.
patent: 4357134 (1982-11-01), Katsushige et al.
patent: 4407205 (1983-10-01), Beaufrere
patent: 4412810 (1983-11-01), Izuha et al.

Affiliated with

Also associated with

Rating

Method and apparatus of gas-coal combustion in steam boilers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus of gas-coal combustion in steam boilers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus of gas-coal combustion in steam boilers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1006941