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EAF ramming

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EAF ramming

  • Taxonomy:Magnesia products

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  • Date of release:2019/04/02
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Manufacturing Method of Tamping Material for Electric Furnace Bottom

The invention discloses an electric furnace bottom ramming material. In terms of weight percentage, the formula of electric furnace bottom ramming material contains 5-3mm fused magnesia or high-purity magnesia aggregate 20-40%, 3-1mm fused magnesia or high-purity magnesia aggregate 10-25%, 1-0mm fused magnesia or high-purity magnesia aggregate 15-25%, less than 88 micron fused magnesia fine powder or high-purity magnesia fine powder 20-30%; in addition, brine, which accounts for 4-6% of the total weight of the raw material, is added as well. It is a binder. The raw materials used in brine-bonded tamping material production are stable and easy to store; the production process of the tamping material is simple and the product quality is easy to control; the tamping material of the invention has high MgO content, low impurity content and high fireproof, which can improve the anti-erosion performance of the tamping material, and the service life of the tamping material can be increased from 200 times to more than 500 times during the use of the electric furnace.


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