High-efficient catalytic separating agent

Abstract

The invention belongs to the technical field of steel smelting, and provides a high-efficient catalytic separating agent which does not crust, does not stick to ladles, can perform heat preservation, and can prevent secondary oxidation of molten steel (iron). The high-efficient catalytic separating agent comprises the following components by weight: 3-30% of fluorite, 3-30% of vermiculite, 3-40% of acidized graphite, 3-30% of white soda, 3-30% of graphite, 3-40% of silica, 1-15% of aluminium oxide, 3-20% of white lime, 0.5-10% of magnesium oxide. The separating agent effectively reduces the viscosity of the slag layer, prevents the slag layer from crusting, catalyzes and promotes the separation of slag steel (iron), shortens the smelting time by 20%, allows molten steel (iron) in the slag layer to reflux, increases the steel (iron) tapping amount, reduces the waste slag amount, does not adhere slag, does not stick to ladles, reduces drossing of steel (iron) ladles, and prolongs the service life of steel (iron) ladles; the separating agent can rapidly cover the liquid level of molten steel (iron), has good heat preservation and slag dilution functions, and can prevent secondary oxidation of molten steel (iron).

Description

technical field [0001] The invention belongs to the technical field of iron and steel smelting, and more specifically relates to a high-efficiency catalytic separation agent used for smelting steel (iron) water surface. technical background [0002] The development of the iron and steel industry has spawned a variety of steelmaking (iron) auxiliary materials with different functions. The auxiliary materials used on the steel (iron) liquid surface include, for example, steel (iron) coating agents. The main types of such covering agents are, The basic function is to keep warm and prevent secondary oxidation of steel (iron) water, but its disadvantage is that it cannot purify steel (iron) water or encrustation sticking; such as thinner slag agent, this kind of thinner slag agent is mainly to reduce steel (iron) Slag viscosity improves flow performance, promotes the separation of slag steel (iron) and prevents sticking, but its disadvantage is that it has no heat preservation ef...

AI Technical Summary

Problems solved by technology

[0002] The development of the iron and steel industry has spawned a variety of steelmaking (iron) auxiliary materials with different functions. The auxiliary materials used on the steel (iron) liquid surface include, for example, steel (iron) coating agents. The main types of such covering agents are, The basic function is to keep warm and prevent secondary oxidation of steel (iron) water, but its disadvantage is that it cannot purify steel (iron) water or encrustation sticking; such as thinner slag agent, this kind of thinner slag agent is mainly to reduce steel (iron) Slag viscosity improves flow performance, promotes the separation of slag steel (iron) and prevents sticking, but its disadvantage is that it has no heat preservation effect. In order to prevent the temperature of steel (iron) water from contacting air and causing its temperature to drop rapidly, it must be used in conjunction with its heat preservation agent. increased cost