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The solicitations undergone by the coke in the bosh of the blast furnace were defined. After a literature survey, the conclusion was that none of the existing tests was satisfactory for characterizing the coke behaviour in the lower part of the blast furnace. Therefore, a new test was developed with the following conditions: 2 to 3 kg of coke lumps (40 to 63 mm) are heated up to a given temperature, then gasified at this temperature up to a fixed rate under CO(2); afterwards, the coke lumps are heated, under argon, up to 1500 C, at different heating rates and with mechanical solicitations, in order to simulate different residence times in the bosh. Equipment was designed in order to meet these conditions. After conclusive reception tests of the equipment, set up trials of the test conditions were carried out with new equipment in order:

- To define the best sample weight;
- To precise the level of mechanical solicitations;
- To study the influence of the gasification temperature on the coke behaviour;
- To quantify the intrinsic influence of the thermal solicitations;
- To study the influence of the duration of the high temperature solicitations.

Additional information

Authors: MUNNIX R, ASBL, Centre de recherches métallurgiques, Liège (BE);STEYLS D, ASBL, Centre de recherches métallurgiques, Liège (BE)
Bibliographic Reference: EUR 16735 FR (1997) 65pp., FS, ECU 11.50
Availability: Available from the (2)
ISBN: ISBN 92-828-1402-5
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