Method and apparatus for preventing the adhesion of dust in an i

Details Method and apparatus for preventing the adhesion of dust in an i Method and apparatus for preventing the adhesion of dust in an i

1992-05-21

1993-12-14

Favors, Edward G.

Furnaces

Including noncombustible fluid supply means

110215, 110345, 110346, 110348, 431170, F23L 700

Patent

active

052692361

ABSTRACT:
A method of preventing dust from adhering to a wall of a combustion apparatus, such as a furnace wall or exhaust duct, is carried out by forcing gas through a porous refractory member forming the wall. Specifically, the furnace wall or exhaust duct wall to which dust might otherwise adhere is made of a porous refractory member and gas is injected through the pores of the refractory member. In an incinerator, the refractory porous member extends around the periphery of a liquid injection nozzle, so that gas fed to the inside of the incinerator through the refractory porous member prevents flower from accumulating at the periphery of the end of the nozzle and attenuates the wake of the injected liquid so as to suppress the entrainment of dust in the liquid. In a melting furnace, the refractory porous members provide the ceiling of a slag separating chamber and the entrance of an exhaust gas duct open to the upper portion of the slag separating chamber. Plate-like members form wind chambers with the porous refractory members so that cooling gas fed into the wind chambers is forced into the slag separating chamber and exhaust duct through the pores in the refractory porous members.

REFERENCES:
patent: 4604051 (1986-08-01), Davies et al.

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