C - Chemistry – Metallurgy – 10 – B
Patent
C - Chemistry, Metallurgy
10
B
202/10, 31/69
C10B 57/06 (2006.01)
Patent
CA 1069456
ABSTRACT OF THE DISCLOSURE Coal is preheated and contacted with 0.5 to 3 percent by weight of coal tar, preferably bituminous coal tar. The thus-treated coal is admitted into a coke oven through the ceil- ing of the latter. The coal is poured into the coke oven, rather than being blown in, and is permitted to descend into the coke oven under the influence of gravity. Preferably, the coal is poured into the coke oven through at least two or three openings in the ceiling thereof. The coal tar serves to bind finely div- ided coal particles to the coarser particles and, in this manner, the development of dust during the introduction of the coal into the coke oven is restricted and, concomitantly, the danger of ig- nition or explosion is reduced. The pouring of the coal into the coke oven helps to further reduce the danger of explosion. This may be explained in that a conical pile of coal is formed in the chamber below the openings in the ceiling so that coal introduced into the coke oven gradually travels towards the hot walls of the oven along the pile. By virtue of this, a precipitous heat- ing of the freshly introduced coal particles is avoided and the danger of explosion accordingly reduced. The pouring of the coal into the coke oven also reduces the danger of explosion in that the gas current used when blowing coal into a coke oven is elimin- ated. Such a gas current can entrain fine coal particles and there- by result in the development of dust which, in turn, can lead to explosions. -1-
266374
Beck Kurt-Gunther
Habermehl Diethard
Rohde Wolfgang
Siebert Werner
Bergwerksverband G.m.b.h.
Didier Engineering G.m.b.h.
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