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Tapping-hole clay for iron and steel smelting and preparation method thereof

A technology of iron and steel smelting and plugging mud, which is applied in the field of metal smelting, can solve problems such as the reduction of plugging effect, the cracking of plugging mud, and the impact on production, and achieve the effects of stable properties and accelerated work efficiency

Inactive Publication Date: 2018-11-13
徐州宏阳新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the iron and steel smelting process, it is necessary to use plugging mud to block the molten iron and other substances on the blast furnace, but the existing plugging mud often has cracks, which reduces the plugging effect and affects production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A plugging mud for iron and steel smelting. Its components and their mass parts are: 12 parts of sillimanite, 2 parts of cutting powder, 5 parts of composite carbon powder, 22 parts of tar, 1 part of graphite powder, and 13 parts of high alumina corundum. Parts, 2 parts of light clay, 3 parts of magnesium oxide, 11 parts of iron oxide, 13 parts of kaolin, 8 parts of stabilizer, 2 parts of binder, and 10 parts of sericite.

[0019] Preferably, the composite carbon powder is pitch coke.

[0020] Preferably, the stabilizer is silicon carbide.

[0021] A preparation method of plugging mud for iron and steel smelting includes the following steps:

[0022] (1) The solid raw material components are sequentially added to the mill and dry milled;

[0023] (2) Add tar and perform wet grinding;

[0024] (3) Mix the obtained materials uniformly and dry.

[0025] Preferably, the dry grinding time in step (1) is 20 minutes.

[0026] Preferably, the wet grinding time in step (2) is 30 minutes.

[...

Embodiment 2

[0029] A plugging mud for iron and steel smelting, its components and their mass parts are: 13 parts of sillimanite, 6 parts of cutting powder, 8 parts of composite carbon powder, 24 parts of tar, 6 parts of graphite powder, and 16 parts of high alumina corundum Parts, 6 parts of light clay, 5 parts of magnesium oxide, 13 parts of iron oxide, 16 parts of kaolin, 10 parts of stabilizer, 3 parts of binder, 11 parts of sericite.

[0030] Preferably, the composite carbon powder is pitch coke.

[0031] Preferably, the stabilizer is silicon carbide.

[0032] A preparation method of plugging mud for iron and steel smelting includes the following steps:

[0033] (1) The solid raw material components are sequentially added to the mill and dry milled;

[0034] (2) Add tar and perform wet grinding;

[0035] (3) Mix the obtained materials uniformly and dry.

[0036] Preferably, the dry grinding time in step (1) is 20 minutes.

[0037] Preferably, the wet grinding time in step (2) is 30 minutes.

[003...

Embodiment 3

[0040] A plugging mud for iron and steel smelting. Its components and their mass parts are: 15 parts of sillimanite, 8 parts of cutting powder, 10 parts of composite carbon powder, 25 parts of tar, 13 parts of graphite powder, and 20 parts of high alumina corundum. Parts, 8 parts of light clay, 6 parts of magnesium oxide, 15 parts of iron oxide, 20 parts of kaolin, 11 parts of stabilizer, 4 parts of binder, and 13 parts of sericite.

[0041] Preferably, the composite carbon powder is pitch coke.

[0042] Preferably, the stabilizer is silicon carbide.

[0043] A preparation method of plugging mud for iron and steel smelting includes the following steps:

[0044] (1) The solid raw material components are sequentially added to the mill and dry milled;

[0045] (2) Add tar and perform wet grinding;

[0046] (3) Mix the obtained materials uniformly and dry.

[0047] Preferably, the dry grinding time in step (1) is 20 minutes.

[0048] Preferably, the wet grinding time in step (2) is 30 minutes...

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PUM

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Abstract

The invention discloses tapping-hole clay for iron and steel smelting. The tapping-hole clay is prepared from the following components in parts by mass: 12 to 15 parts of sillimanite, 2 to 8 parts ofcutting powder, 5 to 10 parts of composite carbon powder, 22 to 25 parts of tar, 1 to 13 parts of graphite powder, 13 to 20 parts of high-alumina corundum, 2 to 8 parts of light-weight clay, 3 to 6 parts of magnesium oxide, 11 to 15 parts of iron oxide, 13 to 20 parts of kaoline, 8 to 11 parts of a stabilizer, 2 to 4 parts of a binding agent and 10 to 13 parts of sericite. The preparation method of the tapping-hole clay for iron and steel smelting comprises the following steps: (1) adding the solid raw material components into a malaxator in sequence for dry rolling; (2) adding the tar for wetrolling; (3) uniformly mixing the obtained material, and drying the mixture. The property of each component substance of the obtained tapping-hole clay is stable, so that the obtained tapping-hole clay is also relatively stable in property and relatively high in rigidity and impact resistance, can be better achieve a plugging effect, and is favorable for guaranteeing the production takt and improving the working efficiency.

Description

Technical field [0001] The invention specifically relates to a plugging mud for iron and steel smelting and a preparation method thereof, belonging to the field of metal smelting. Background technique [0002] In the process of iron and steel smelting, it is necessary to use plugging mud to block the molten iron and other substances on the blast furnace. However, the existing plugging mud often breaks, which reduces the plugging effect and affects production. Summary of the invention [0003] In view of the above-mentioned problems in the prior art, the purpose of the present invention is to provide a plugging mud for iron and steel smelting and a preparation method thereof, so as to prepare a plugging mud with a long-lasting and stronger effect, so that the plugging effect of the blast furnace can be achieved. Improve the barrier of molten iron more thoroughly. [0004] In order to achieve the above objective, the technical solution adopted by the present invention is: [0005] A p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
CPCC04B35/66
Inventor 邵珠航
Owner 徐州宏阳新材料科技股份有限公司