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Low-cost magnesium tundish paint and its preparation method

A tundish, low-cost technology, applied in the field of low-cost magnesia tundish paint and its preparation, can solve the problems of national resource consumption, increase the cost of steel production, affect the unit cost of steel production, etc., achieve sustainable development, reduce Production cost, effect of reduced consumption

Active Publication Date: 2015-01-21
鞍钢实业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous increase of steel production in my country in recent years, the use of refractory materials is also rising, which not only increases the production cost of steel, but also causes a large consumption of national resources
The tundish coating is for one-time use. On the premise of ensuring the quality, its cost will affect the unit cost of steel production

Method used

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  • Low-cost magnesium tundish paint and its preparation method
  • Low-cost magnesium tundish paint and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The low-cost magnesium tundish coating is made by mixing the following materials according to the weight ratio:

[0023] Refractory waste medium particles (5-3mm): 5 parts; refractory waste fine particles (3-1mm): 30 parts; refractory waste fine particles (1-0mm): 30 parts; refractory waste powder (≤0.088 mm): 25 parts, hemp fiber: 5 parts; solid sodium silicate: 5 parts; sodium tripolyphosphate: 3 parts.

Embodiment 2

[0025] The low-cost magnesium tundish coating is made of the following materials according to the weight ratio:

[0026] Refractory waste medium particles (5-3mm): 10 parts; refractory waste fine particles (3-1mm): 26 parts; refractory waste fine particles (1-0mm): 30 parts; refractory waste powder (≤0.088 mm): 20 parts, paper fiber: 6 parts; silica powder: 7 parts; sodium hexametaphosphate: 1 part.

Embodiment 3

[0028] The low-cost magnesium tundish coating is made of the following materials according to the weight ratio:

[0029] Refractory waste particles (5-3mm): 0 parts; refractory waste fine particles (3-1mm): 20 parts; refractory waste fine particles (1-0mm): 35 parts; refractory waste powder (≤0.088 mm): 30 parts, hemp fiber: 6 parts; silica powder: 7 parts; sodium tripolyphosphate: 1 part; sodium hexametaphosphate: 1 part.

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Abstract

The invention relates to a low-cost magnesium tundish paint and its preparation method. The paint provided by the invention is prepared by mixing a waste and old refractory material with several ingredients. The ingredients comprise: by weight, 80-95 parts of the waste and old refractory material; 2-8 parts of fiber; 2-10 parts of a binder; and 0.1-3 parts of an additive, wherein the additive contains one or two components selected from sodium tripolyphosphate and sodium hexametaphosphate; the binder contains one or two components selected from solid sodium silicate or silicon powder; and fiber contains one or two components selected from fibriia or paper fiber. The preparation method provided by the invention comprises the following steps of: 1) recovering and selecting the waste and old refractory material; 2) crushing; 3) uniformly stirring and mixing the above raw materials in proportion. In comparison with the prior art, the invention has the following beneficial effects: the preparation method is used to greatly reduce the production cost of the tundish paint required in steel production, save the magnesium tundish paint by 600yuan / ton, increase the economic benefit of steel enterprises and minimize the consumption of national magnesium resources, and is beneficial for the sustainable development of enterprises and a nation.

Description

technical field [0001] The invention relates to the field of regeneration and utilization of waste refractory materials, in particular to a low-cost magnesium tundish coating and a preparation method thereof. Background technique [0002] Refractory materials are an indispensable part of the production of iron and steel enterprises. With the continuous increase of steel production in my country in recent years, the use of refractory materials is also rising, which not only increases the production cost of steel, but also causes a large consumption of national resources. The tundish coating is for one-time use. On the premise of ensuring the quality, its cost will affect the unit cost of steel production. The use of waste refractory materials in magnesia tundish coatings is still blank in China. Contents of the invention [0003] The purpose of the present invention is to provide a low-cost magnesium tundish coating and its preparation method, so that a large amount of wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 秦悦张福刚关艳唐建平卢艳霞赵明涛孙丽杰
Owner 鞍钢实业集团有限公司