Efficient slag collecting agent for cast steel slag and preparation method thereof

Abstract

The invention discloses an efficient slag collecting agent for cast steel slag and a preparation method thereof. The efficient slag collecting agent is composed of, by weight, 62%-68% of perlite fine powder, 4%-8% of vermiculite, 1%-2% of kiryu sand, 10%-15% of kaolin clay, 2%-6% of white carbon black, 2%-4% of fluorite, 1%-3% of epoxy resin and 4%-8% of coal gangue. Compared with the prior art, the efficient slag collecting agent for the cast steel slag and the preparation method thereof have the following advantages that the perlite fine powder and the kiryu sand are processed in high-temperature hot steam so as to be pre-expanded and then is dried through temperature changing, expansion of gas in particle pores is accelerated, improving of the expansion degree of the slag collecting agent is facilitated, and accordingly the thickening effect of a solder splash layer is improved; molten slag and impurities are bonded together through instant expansion of a micropore structure, and the acting speed is high; a part of crystal water in the slag collecting agent can be effectively removed in the treatment process, potential safety hazards are decreased, and the using amount is small; and the environment cannot be polluted, and the component of a cast steel solution cannot be changed.

Description

technical field [0001] The invention relates to a slag removal material, in particular to a high-efficiency slag collector for steel casting slag and a preparation method thereof. Background technique [0002] In the field of cast steel metallurgical manufacturing, in the process of adding materials, there will be waste parts returned to the furnace, alloy materials, etc., so slag will be generated. Among them, in the process of casting steel, liquid particles float up to form molten thin slag with high viscosity The layer is closely combined with the surface of molten steel. Compared with the solid slag, its fluidity is too high, and it is not easy to remove the slag. In order to improve the efficiency of slag removal before casting, it is necessary to adjust the physical state of the slag at this time. For high viscosity dilute Thickening of slag, the existing slag removal agents pay more attention to increasing the viscosity of the slag layer, and often directly use the s...

AI Technical Summary

Problems solved by technology

[0002] In the field of cast steel metallurgical manufacturing, in the process of adding materials, there will be waste parts returned to the furnace, alloy materials, etc., so slag will be generated. Among them, in the process of casting steel, liquid particles float up to form molten thin slag with high viscosity The layer is closely combined with the surface of molten steel. Compared with the solid slag, its fluidity is too high, and it is not easy to remove the slag. In order to improve the efficiency of slag removal before casting, it is necessary to adjust the physical state of the slag at this time. For high viscosity dilute Thickening of slag, the existing slag removal agents pay more attention to increasing the viscosity of the slag layer, and often directly use the slag collection agent for molten iron slag removal, resulting in poor slag removal effect