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Method of controlling the cutting gate of raw material sub-installation equipment in blast furnace operation, and raw material sub-installation equipment
Method of controlling the cutting gate of raw material sub-installation equipment in blast furnace operation, and raw material sub-installation equipment
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机译:高炉操作中的原料分装设备的切割门的控制方法及原料分装设备
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摘要
PROBLEM TO BE SOLVED: To provide a quarry gate control method capable of preventing occurrence of jamming and retention of a raw material at a raw material discharge channel from sub discharge equipment stably and surely without significantly reducing production efficiency of blast furnace operation, when discharging a raw material to a blast furnace top of a blast furnace from the sub discharge equipment.SOLUTION: When a quarry gate is operated from a closing state to an opening direction during sub discharge period, in a state that the quarry gate is opened to an intermediate opening degree not reaching a fully opening state, opening direction operation of the quarry gate is temporarily stopped, and after holding the quarry gate in the intermediate opening degree for a predetermined time, the quarry gate is opened to the fully opening degree.
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