C - Chemistry – Metallurgy – 10 – B
Patent
C - Chemistry, Metallurgy
10
B
202/50
C10B 27/00 (2006.01) C10B 33/00 (2006.01)
Patent
CA 1084863
ABSTRACT OF THE DISCLOSURE The invention relates to a retrofit method and apparatus for minimizing the emission of particulate-laden smoke to the ambient atmosphere during the movement of slot-oven-produced, incandescent coke prior to the time it is quenched in an open-topped rail vehicle. A cyclically used, moveable hood is selectively positioned around and over a guide through and from which extruded, incandescent coke drops into an open-top vehicle which concurrently is moving at right angles to the path of the extruding coke. The hood confines potentially air polluting emissions during extrusion. Use is made of the latent heat in the extruded, incandescent coke to make steam out of water introduced within the hood from a plurality of water s sprays so as to create a substantial steam atmosphere which envelopes the coke and thereby suppresses combustion when it would otherwise be most extensive. Further, the steam atmosphere is used to screen and protect the apparatus from excessive radiant heat and thereby protect its integrity. Limited quantities of exhaust steam are vented through a low- differential gas cleaner so as to remove most of the particulates which represent the residuum after suppressive control effects of both the hood and the steam envelope. The suppressive emission control effect of the method and apparatus continues as incandescent coke, reposing within a vehicle, is conveyed to a remote location for reduction of the whole contents of the car below its auto- ignition temperature.
265950
Hanna Furnace Corporation (the)
Macrae & Co.
Republic Steel Corporation
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