A Method for Adjusting the Erwen Throat of Converter
An adjustment method and throat technology, which is applied in the manufacture of converters, etc., can solve the problems of heavy maintenance workload of the micro-differential pressure detection system and the inability to guarantee the accuracy of the micro-differential pressure detection value, so as to improve the dust removal effect and gas recovery rate and the effect of prolonging the recovery time
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[0029] In this embodiment, the oxygen blowing system and Erwenhou RD valve are interlocked and controlled by the control system. The oxygen amount adjusts the opening of the RD valve step by step, so as to improve the flue gas treatment and dust removal effect, prolong the gas recovery time, and improve the gas recovery rate without adding other equipment.
[0030] 1) Before the start of oxygen blowing, the RD valve opening is controlled at 40% during the process of adding iron and steel scrap to the converter; the data of molten iron and steel scrap is collected, and the oxygen blowing amount of the furnace is statically calculated to be 14550m 3 .
[0031] 2) After oxygen blowing starts, the opening of the RD valve is controlled at 50%.
[0032] 3) The amount of oxygen blowing reaches 2910m 3 (20% of the total oxygen), the RD valve opening is controlled at 90%.
[0033] 4) The amount of oxygen blowing reaches 10913m 3 (75% of the total oxygen), the RD valve opening is cont...
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