Preparing method and application method of slag pot isolation spraying coating

Abstract

The invention relates to the field of iron and steel smelting, in particular to the field of slag pot isolation spraying coatings, and discloses a slag pot isolation spraying coating. The slag pot isolation spraying coating is prepared from, by mass, 85-92 parts of high bauxite clinker with the particle size smaller than or equal to 200 mesh, 3-10 parts of powdery graphite and 3-5 parts of portland cement. A preparing method includes the steps that the materials are prepared; the high bauxite clinker and the portland cement are stirred for 20 min to 40 min under the condition of 80 DEG C to 90 DEG C; the mixture is subjected to cold cutting to be at the room temperature, the graphite is added, the mixture is stirred to be even, and the slag pot isolation spraying coating is obtained. The invention further discloses an applying mode of the spraying coating. According to the slag pot isolation spraying coating, the preparing method and the applying mode, the pot isolation rate of slag pots can be 99% or above, persistent attachment hardly exists on slag pots, the damage rate of slag pots can be effectively reduced, the production efficiency can be improved, and the unnecessary production input can be reduced.

Description

[0001] The invention relates to the field of iron and steel smelting, in particular to the field of slag tank isolation spray paint. Background technique [0002] The slag tank is a large open container used to transport molten steel slag to the processing site in the iron and steel metallurgy process. It is generally made of cast iron or cast steel. It is expensive to manufacture and can be reused. However, the problem of sticking to the tank during red slag transportation is a problem that plagues the production of enterprises, because the molten steel slag will cool naturally after being poured into the slag tank, and a hard shell will form on the surface and adhere to the wall of the slag tank, or there will be water in the red slag, and molten steel The adhesion between the cooling and the wall of the slag tank will cause the steel slag in the tank to not be poured out smoothly after the slag tank is transported to the processing site, which will affect the production effi...

AI Technical Summary

Problems solved by technology

However, the problem of sticking to the tank during red slag transportation is a problem that plagues the production of enterprises, because the molten steel slag will cool naturally after being poured into the slag tank, and a hard shell will form on the surface and adhere to the wall of the slag tank, or there will be water in the red slag, and molten steel The adhesion between the cooling and the wall of the slag tank will cause the steel slag in the tank to fail to pour out smoothly after the slag tank is transported to the processing site, which will affect the production efficiency and even cause the whole slag tank to be scrapped and increase the production cost.

[0003] Before the slag tank is sprayed with isolation, the natural can removal rate is generally about 80%. After using the isolation spray coating, the single can removal rate can be increased to about 95%, but after the slag tank is used again, the can removal rate will drop rapidly. This results in the need to clean up the slag tank every time it is used, and this cleaning work is time-consuming and laborious