Anti-sticking slag material for slag tank and preparation method thereof

An anti-sticking slag and slag tank technology, applied in the field of new materials, can solve the problems of high cost and unsatisfactory effect, and achieve the effect of low cost, widening use channels and good effect.

Active Publication Date: 2021-01-26
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High cost and unsatisfactory effect
[0006] At present, all types of anti-sticking slag materials for slag tanks use refractory materials as the main raw material, which is costly and unsatisfactory.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]An anti-sticking slag material for a slag tank, expressed in weight percentage, the raw material composition of the anti-sticking slag material for a slag tank is: a particle size of 400 mesh slag powder 90%, a particle size of 200 mesh limestone powder 8.5%, three Sodium polyphosphate 0.2%, sodium hexametaphosphate 0.3% and sodium carboxymethyl cellulose 1%. The specific surface area of ​​the used slag powder is controlled within 300~500m2 / kg, the density is greater than 2.8g / cm3.

[0025]A preparation method of anti-sticking slag material for slag tank, specifically:

[0026]Mix and add the above-mentioned formula amount of the raw materials. The added water is 45% of the total weight of the above-mentioned raw materials. The mixture is evenly stirred by a mixer and stirred for 10 minutes to obtain. Adjust the slurry density to 1.79g / cm3, Viscosity is 2736mPa·s, refractoriness is 1401℃.

[0027]The slag pot prepared by the above process is sprayed with anti-sticking slag material on ...

Embodiment 2

[0029]An anti-sticking slag material for slag tank, expressed in weight percentage, the raw material composition of the anti-sticking slag material for slag tank is: a particle size of 400 mesh slag powder 88%, a particle size of 200 mesh limestone powder 8.3%, particle size It is 200 mesh graphite powder 2%, sodium tripolyphosphate 0.4%, sodium hexametaphosphate 0.3% and sodium carboxymethyl cellulose 1%. The specific surface area of ​​the used slag powder is controlled within 300~500m2 / kg, the density is greater than 2.8g / cm3.

[0030]A preparation method of anti-sticking slag material for slag tank, specifically:

[0031]Mix the ingredients of the above formula amount uniformly, add 50% of the total weight of the above-mentioned water, stir evenly with a mixer, and stir for 10 minutes to obtain. Adjust the slurry density to 1.97g / cm3, The viscosity is 2846mPa·s, and the refractoriness is 1410℃.

[0032]The slag pot prepared by the above process is sprayed with anti-sticking slag material ...

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Abstract

The invention provides an anti-sticking slag material for a slag tank and a preparation method thereof, comprising the following raw materials in weight percent: 70-90wt% of slag fine powder, 6-30wt% of additives and 1-3wt% of binder, 100% in total. The preparation method is as follows: mixing slag fine powder, additives and binder in a formula amount, adding water, stirring and mixing evenly to obtain the anti-sticking slag material. Compared with the prior art, the anti-sticking slag material provided by the present invention adopts blast furnace slag as the main raw material, and the cost is low. It is ground to a particle size of 300-400 mesh, and mixed with additives and binders to control the viscosity of the slurry , the prepared anti-sticking slag material has strong adhesion to the slag tank, short curing time, high refractoriness, good anti-sticking slag effect, and can achieve the goal of turning over the slag tank ≥ 3 times after one spraying. At the same time, it broadens the use of slag powder and increases the added value of resources.

Description

Technical field[0001]The invention belongs to the field of new materials, and specifically designs an anti-sticking slag material for a slag tank and a preparation method thereof.Background technique[0002]During the iron and steel smelting production process, due to the splash adhesion of the high-temperature melt or the solidification and bonding under natural conditions, the adhesion of the high-temperature melt or the wall surface in contact with the high-temperature melt will stick to iron, steel or slag, and equipment sticks to slag After that, it is difficult to clean up, consumes a lot of manpower and material resources, and affects production efficiency. The steel slag slag tank is in contact with high-temperature liquid slag and residual molten steel during the slag connection process, and it is easy to cause serious slag sticking on the inner wall of the slag tank, resulting in shutdown, difficult to clean sticky slag, and affecting production efficiency. At present, many ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3208C04B2235/425C04B2235/447C04B2235/449
Inventor 王洛饶磊刘自民李帮平王俊北樊明宇桂满城张耀辉
Owner MAANSHAN IRON & STEEL CO LTD
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