Steel, molten iron slag gathering heat insulating covering agent possessing sulfur phosphorus eliminating function

Abstract

A slag-gathering and insulating covering agent able to remove S and P from molten steel or iron is prepared from M2S sand, slag, pearlite powdered coal ash, zeolite, graphite and the powder 'Guilin No.one'. Its advantages are high effect to remove S and P and shield light, low temp drop, and no pollution to molten steel or iron.

Description

technical field [0001] The invention relates to a covering agent for accumulating slag and heat preservation of steel and molten iron, in particular to a covering agent for accumulating slag and heat preservation of steel and molten iron with the function of removing sulfur and phosphorus. Background technique [0002] Covering agents are widely used in the metallurgical casting industry such as various gray cast iron, ductile iron and various cast steel liquid production processes. Traditional covering agents use grass ash, perlite, quartz stone, etc. These covering agents are used in the process of The addition of a large amount of slag is not strong, the insulation performance is poor, and there is a certain pollution to molten steel. Sprinkled on the surface of molten iron, it can release a large amount of heat energy and react to form a good insulation layer. At the same time, it has a good effect of slag collection and desulfurization. The use of this covering agent i...

AI Technical Summary

Problems solved by technology

[0002] Covering agents are widely used in the metallurgical casting industry such as various gray cast iron, ductile iron and various cast steel liquid production processes. Traditional covering agents use grass ash, perlite, quartz stone, etc. These covering agents are used in the process of The addition of a large amount, the ability to gather slag is not strong, the thermal insulation performance is poor, and there is a certain pollution to molten steel