Steel ladle wire feeding auxiliary device and steel ladle wire feeding method
An auxiliary device and ladle technology, which is applied in the field of refining equipment and technology outside the steelmaking furnace, can solve the problems of affecting the processing time of molten steel, low wire yield, and poor wire feeding conditions, so as to improve the metallurgical reaction speed and increase the yield. Yield, the effect of preventing damage to human health
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[0043] Example 1: Feeding silicon-calcium wire for smelting pipeline steel in a 300-ton converter steel plant.
[0044] A factory in a 300-ton converter steel plant RH station modified the original simple wire feeding machine according to the ladle wire feeding auxiliary device and ladle wire feeding method of the present invention, and smelted X70 pipeline steel, which requires calcium treatment , The original wire feeding device feeds 500 meters of Ф16mm cored wire, which contains Si-28%Ca alloy powder, 350g per meter of alloy, the original operation totals about 175kg of alloy powder, which contains 49kg of calcium, after the operation is over The calcium content in molten steel fluctuates between 15-45ppm, about 21ppm on average, and the calcium recovery rate is 13%.
[0045] After the transformation, the ladle wire feeding auxiliary device A of the present invention is added, and the covering area of the immersion cover A2 of the ladle wire feeding auxiliary device is 1000×1000
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[0047] Example 2: Magnesium feeding wire for smelting low-carbon aluminum killed steel in a 300-ton converter steel plant.
[0048] On the same RH, the low-carbon aluminum killed steel is fed with magnesium cored wire. The outside of the magnesium cored wire is a steel tape shell, and the inside is wrapped with Ф12.8Al-18% Mg alloy wire. The alloy is 322 grams per meter, equivalent to metal 58 grams of magnesium. The actual feeding amount of the original process is 500 meters, and the residual magnesium content in the steel is 18 ppm, which is equivalent to a yield of 19%.
[0049] After adopting the ladle wire feeding auxiliary device and the ladle wire feeding method of the present invention, the flow rate of argon blowing at the bottom of the ladle is 160 liters / min. After feeding the wire for 500 meters, the residual magnesium content in the steel is measured to be 23 ppm, which is equivalent to a yield of 24%.
[0050] Through the above description and embodiments, the ladle wir
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