Method for increasing recovery rate of converter gas
A converter gas, recovery technology, applied in the direction of manufacturing converters, etc., to achieve the effect of increasing recovery
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Embodiment 1
[0037] The furnace number is 2P05486:
[0038] 1. When the furnace steel is blown to 2′36″, the blowing of the oxygen lance is below the oxygen opening point, the skirt is at a low position, and there is no fault alarm for the three-way valve and the water reverse valve; the compressed air pressure is 0.493MPa; The through valve is closed; the fan speed is 1350r / min; the oxygen content is 0.08wt%; the CO content is 37.2wt%; the gas cabinet is 60100m 3 ;It takes 2.6 minutes to blow the lance, and the above conditions meet the conditions for the automatic gas recovery of the first lance lowering, and the gas recovery starts automatically.
[0039] 2. When the blowing reaches 4′35″, the oxygen lance blowing is below the oxygen opening point, the cover skirt is at a high position, and the three-way valve and water reverse valve have no fault alarm; the compressed air pressure is 0.460MPa; the bypass valve is at Closed state; fan speed 1350r / min; oxygen content 0.06wt%; CO content...
Embodiment 2
[0043] The furnace number is 1O07321:
[0044] 1. When the furnace steel is blown to 2′46″, the blowing of the oxygen lance is below the oxygen opening point, the cover skirt is at a low position, and there is no fault alarm for the three-way valve and the water reverse valve; the compressed air pressure is 0.466MPa; The through valve is closed; the fan speed is 1300r / min; the oxygen content is 0.04wt%; the CO content is 47wt%; the gas cabinet is 30900m 3 ; The blowing process lasted 2.77 minutes, and the above conditions met the conditions for automatic gas recovery in the first lowering of the lance, and gas recovery began automatically.
[0045] 2. When the blowing reaches 5'52", the blowing of the oxygen lance is below the oxygen opening point, the cover skirt is at a high position, and the three-way valve and water reverse valve have no fault alarm; the compressed air pressure is 0.459MPa; the bypass valve is at Closed state; fan speed 1300r / min; oxygen content 0.04wt%; ...
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