Manipulation of the exit gas flow in a melting furnace

Details Manipulation of the exit gas flow in a melting furnace Manipulation of the exit gas flow in a melting furnace

1991-01-22

1992-12-22

Reynolds, Bruce A.

Industrial electric heating furnaces

Glass furnace device

Joule effect heating

373 27, 373 29, 373 30, 373 31, 373 41, 373110, C03B 5027

Patent

active

051739194

ABSTRACT:
In a melting furnace (1), toxic, volatile chemical compounds from introduced filter dust from industrial incineration units are vaporized at about 1300.degree. C. and forced to leave the reaction space. The non-vaporizing residue forms a glassy melt which is discharged continuously or intermittently from the reaction space. Heating of the melt and of the filter dust is affected by resistance heaters in protective ceramic sheaths (4) above the melt (2). In order to prevent corrosion of the resistance heater protection sheaths (4) by exit gases (7) especially in the flow lee thereof, the exit gases are forced, by partitions (10) and an exit gas extraction pipe (9) with an inlet orifice (16) at a low level, to flow below the resistance heater protection sheaths (4) to an exit gas outlet (5). The partitions (10) reach with their underside (14) from a ceiling region (17) into the gas space of the melting furnace (1) preferably to a level lower than that of the underside (15) of the resistance heater protection sheaths (4).

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patent: 4852118 (1989-07-01), Pieper

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