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As the carbonization process in a coke oven progresses, the two plastic layers meet at the centre of the oven, and form an envelope which swells as a result of gas evolution. The pressure developed within the plastic envelope is transmitted through the charge to the oven walls. The pressure against the walls is known as the coking pressure. In normal coking practice, the pressure is fairly low, less than 50mbar, which the walls are easily able to resist and there is little effect from coking pressure on the oven chamber. With some coals, however, charged under certain conditions the coking pressure can reach several hundred milibars. In a conventional coke oven this is equivalent to pressure of several tonnes/m(2) on the oven wall. The oven brickwork under such strain can break up progressively, or even suddenly, depending on the degree of pressure and eventually the damage becomes irreparable. This results in a reduced operational life for the oven

Additional information

Authors: WILLMERS R, British Steel, London (GB);LOUDEN K, British Steel, London (GB)
Bibliographic Reference: EUR 17496 EN, (1999) 44pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-5785-9
Record Number: 199911004 / Last updated on: 1999-07-23
Original language: en
Available languages: en
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