Antisticking ladle dreg modifying agent for refining out of furnace
An out-of-furnace refining and modifier technology, applied in the field of steelmaking, can solve problems such as failure to achieve production continuity and limit production efficiency, and achieve the effects of improving continuity and increasing the time of refining treatment.
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[0027] The present invention will be further described below in conjunction with specific examples.
[0028] First, detect the ingredients of raw material active lime, corundum slag and fluorite, and select raw materials that meet the following weight ratio conditions, that is, active lime: CaO>90%; corundum slag: CaO 5-15%, Al 2 o 3 60-80%; Fluorite: CaF 2 >85%, SiO 2 <15%; moisture in the three raw materials <0.5%; S or / and P<0.08%; otherwise, it should not be used.
[0029] Then, dry, crush and sieve the above-mentioned raw materials, and it is required that more than 90% of the crushed raw materials have a particle size of less than 8mm;
[0030] In the third step, according to the conditions of the chemical composition of the anti-sticking ladle slag modifier, the weight of the required raw materials can be calculated, see Table 1.
[0031] The chemical composition (percentage by weight) of the anti-sticking ladle slag modifier of the present invention satisfies:
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