Containment of dust and fumes from a metallurgical vessel

Details Containment of dust and fumes from a metallurgical vessel Containment of dust and fumes from a metallurgical vessel

C - Chemistry, Metallurgy

21

C

39/17

C21C 5/46 (2006.01)

Patent

CA 1041296

CONTAINMENT OF DUST AND FUMES FROM A METALLURGICAL VESSEL ABSTRACT OF THE DISCLOSURE A device for use with the exhaust hood of a metallurgical furnace to improve its ability to capture waste gas effluent escaping from the furnace especially when the mouth of the furnace is rotated away from the mouth of the hood for tapping or charging comprises a pair of parallel tracks that are mounted adjacent to the hood and that straddle the mouth of the hood and extend beyond it, a movable closure plate for partially closing and restricting the cross-sectional area of the mouth of the hood that is carried by the tracks and means for moving the closure plate from a position remote from the mouth of the hood to a position adjacent to and partially restricting the cross- sectional area of the mouth of the hood. When the closure plate partially restricts the cross-sectional area of the mouth of the hood there will be an increase in the face velocity, thus drawing the effluent through the unrestricted cross-sectional area of the mouth of the hood so that the effluent from the furnace will be captured and drawn into the hood.

214636

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