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Torpedo can spouting material and spouting method thereof

A technology of material injection and construction method, which is used in casting molten material containers, manufacturing tools, metal processing equipment, etc., can solve the problems of insufficient injection material strength, high equipment requirements, complicated injection methods, etc., and achieves resistance to chemical corrosion. Excellent performance, good thermal shock resistance and high hardness

Active Publication Date: 2011-05-04
PUYANG REFRACTORIES GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The second technical problem to be solved by the present invention is that using the gunning material construction method in the prior art, there is a problem that the strength of the injection material after forming is not enough, and the coagulant used in construction in the prior art has a too fast hardening rate It will also lead to insufficient strength of the injection material, and the coagulants in the prior art are not suitable for the coagulation acceleration of the mullite system injection material, and the injection methods used are relatively complicated, and the requirements for the equipment are relatively high. Higher, thus providing a simple and convenient injection material construction method applicable to mullite system injection materials

Method used

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  • Torpedo can spouting material and spouting method thereof
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  • Torpedo can spouting material and spouting method thereof

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Experimental program
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Effect test

Embodiment 7

[0057] Adopt the injection material described in embodiment 1 to carry out injection, method is:

[0058] (1) Add water to the injection material, the addition of water is 6% of the weight of the injection material, and fully stir after adding water, so that the injection material becomes mud with certain fluidity;

[0059] (2) Using wet injection equipment, add a polyacrylamide aqueous solution with a concentration of 0.1wt% as a coagulant at the nozzle of the wet injection equipment, and use compressed air with a pressure of 0.2MPa to place the coagulant Blow into the injection material so that it is evenly mixed with the injection material in the spray gun and then injected to the surface to be sprayed, and the amount of coagulant mixed with the injection material is 1% of the weight of the injection material .

[0060] (3) Baking is performed after curing the sprayed surface.

[0061] The method for baking the sprayed surface is:

[0062] (1) When at room temperature, p...

Embodiment 8

[0067] Adopt the injection material described in embodiment 2 to carry out injection, method is:

[0068] (1) add water to the injection material and stir, the amount of water added accounts for 8% of the weight of the injection material, so that the injection material becomes mud with certain fluidity;

[0069] (2) use wet injection equipment, and add concentration at the outlet of described wet injection equipment and add the polyaluminum chloride aqueous solution that concentration is 20~30wt% as coagulant, and use the compressed air that pressure is 0.3MPa, the accelerator The coagulant is blown into the injection material, so that it is uniform with the injection material in the spray gun and finally injected to the surface to be sprayed. The amount of coagulant mixed with the injection material is 1.5% by weight of the injection material.

[0070] (3) Baking is carried out after curing the sprayed surface for 20 hours.

[0071] The method for baking the sprayed surface...

Embodiment 9

[0077] Adopt the injection material described in embodiment 3 to carry out injection, method is:

[0078] (1) Stir the injection material with water, the amount of water added accounts for 7% of the weight of the injection material, so that the injection material becomes mud with certain fluidity;

[0079] (2) Use wet injection equipment, and add sodium aluminate and potassium hydroxide composite aqueous solution as coagulant at the outlet of described wet injection equipment, and use the compressed air that pressure is 0.4MPa, coagulant is blown Into the injection material, make it uniform with the injection material in the spray gun, and then spray it to the surface to be sprayed. The amount of coagulation accelerator mixed with the injection material is 1.2% of the weight of the injection material; in the composite aqueous solution of sodium aluminate and potassium hydroxide, the molar ratio of sodium aluminate to potassium hydroxide is: 2:1.

[0080] (3) Baking is carrie...

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Abstract

The invention provides a torpedo can spouting material and a spouting method thereof. The torpedo can spouting material comprises the following components in parts by weight: 20-35 parts of mullite particles with the particle size of 3-5mm, 20-35 parts of mullite particles with the particle size of 0-3mm, 5-20 parts of mullite fine powder not greater than 200 meshes, 15-30 parts of silicon carbide with the particle size not greater than 3mm, 1-6 parts of pure aluminate cement, 2-8 parts of aluminum oxide micro powder not greater than 320 meshes, 2-7 parts of silicon micro powder and 1-5 parts of titanium carbide not greater than 200 meshes; and the torpedo can spouting material mainly comprises the following chemical components in percentage by weight: 40-65% of Al2O3, 15-25% of SiO2 and 15-30% of SiC+C. The invention also further provides the spouting method of the spouting material. The torpedo can spouting material provided by the invention has favorable corrosive resistance and antioxidation.

Description

technical field [0001] The invention relates to an injection material, in particular to an injection material used for gunning repairs of torpedo tanks in the metallurgical industry, and a method for using the injection material. technical background [0002] Torpedo tank (that is, torpedo mixed iron car) is one of the important transportation equipment in the iron and steel smelting industry. The main function of the torpedo tank is to transport molten iron and carry out the "three desulfurization" treatment of molten iron outside the furnace - desulfurization, dephosphorization, and desiliconization. Due to the extremely harsh environment in the torpedo tank, after long-term work, the lining of the torpedo tank The slag line and the brick lining position can take place serious erosion, damage, and the method that prior art takes to this is to use injection material to regularly repair the seriously damaged position in the torpedo tank. [0003] Chinese patent document CN ...

Claims

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Application Information

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IPC IPC(8): C04B35/66B22D41/00C21C7/00
Inventor 秦岩刘国涛郭栋王文学王永辉孙荣海李天清王鹏飞
Owner PUYANG REFRACTORIES GRP CO LTD
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