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DECREASING DUST DISCHARGE AND GOING IN AND OUT OF AIR IN BLAST FURNACE AND IN REGION DISCHARGING PIG IRON WHICH IS DOWNSTREAM THEREOF
DECREASING DUST DISCHARGE AND GOING IN AND OUT OF AIR IN BLAST FURNACE AND IN REGION DISCHARGING PIG IRON WHICH IS DOWNSTREAM THEREOF
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机译:降低粉尘排放量的高炉和区域下游的猪铁的排放量,以及进出空气的区域
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摘要
The process according to the invention for reducing the dust emission and free air access in the region of the tapping spout of a blast furnace, in the adjoining rocking runner and, if appropriate, in the region of a torpedo ladle or a casting bed provides according to the invention for the application of CO2 snow and/or CO2 gas to the molten crude iron or ferromanganese in the region of the runners or to the casting jet, and/or for the introduction of CO2 into the said runners or vessels before contact with the molten crude material. The particular advantages of the process are: reduction of dust emission, reduction of nitriding, reduction of the energy costs for de-dusting and reduction of the wear of refractories.
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