(1)
Using Figure 2-61 follow the production flow of the coke industry.
(a)
Stockpiles: Vast amount of coal are consumed in the daily operation of
a coke oven (Annotation 1, Figure 2-61).
(b)
Coal preparation facility: From the stockpile, coal is conveyed to a
coal preparation facility (Annotation 2) where it is crushed and screened.
(c)
Coaling tower: The prepared coal is then transported by bins until it
is charged into the coke ovens (Annotation 4).
(d)
Coke oven banks: The coaling car charging lorry (Annotation 5) picks up
a load of coal from the coaling tower, and running on tracks on top of the bank of
coke ovens, loads each coke oven. The coal is dropped from the charging lorry into
the oven through charge holes.
Once the oven is charged, the charge hole covers
are replaced to ensure no air enter the oven. Now the coal is made into coke.
(e)
Regenerators: Beneath the coke oven banks (and often underground) are
regenerators.
The regenerators are a series of separate compartments.
Each
compartment is a labyrinth of firebrick passageways.
(f)
Gasometer: Coke oven gas, blast furnace gas, or natural gas is piped
from a gasometer (Annotation 13) into the regenerators and burned. Waste gases are
vented from exhaust stacks (Annotation 11) into the atmosphere.
There are flames
not only in the regenerators but in the hollow walls separating the individual coke
ovens as well. Thus a tremendous amount of heat causes the coal to be reduced to
coke and by-products.
(g)
By-products area: The by-product gases are carried off by the ascension
pipes (Annotation 3) and the collector main (Annotation 12).
These by-products,
coal and tar, are routed to the by-products area (Annotation 14).
Useful raw
materials are separated, and the coke gas is piped to the gasometer for use as fuel.
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