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Dry vibration material used in tundish, and preparation method thereof

A dry vibrating material and tundish technology, which is applied in the field of monolithic refractory materials, can solve the problems that magnesia-chrome bricks cannot be replaced, and achieve the effects of saving mineral resources and energy, reducing environmental pollution, and reducing steelmaking costs

Active Publication Date: 2016-01-13
北京利尔高温材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its excellent application characteristics, directly bonded magnesia-chrome bricks will not be replaced in the short term

Method used

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  • Dry vibration material used in tundish, and preparation method thereof
  • Dry vibration material used in tundish, and preparation method thereof
  • Dry vibration material used in tundish, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] This embodiment provides a dry vibrating material, which is composed of the following raw materials by weight percentage: 70% of waste magnesia-chrome brick particles, 20% of fused magnesia fine powder, 6% of maltose, and 4% of water glass.

[0027] The present embodiment provides the preparation method of the dry vibrating material, which includes the following steps: taking each raw material in proportion; putting the fused magnesia fine powder and water glass into a small mixer and mixing for 10 minutes to obtain a finely mixed powder powder, and set aside; then put the mixed fine powder and other raw materials into a blender, stir evenly, vibrate and shape, bake at 150°C, and demould to obtain.

Embodiment 2

[0029] This embodiment provides a dry vibrating material, which is composed of the following raw materials by weight percentage: 80% of waste magnesia-chrome brick particles, 11% of leather sand fine powder, 7% of glucose, and 2% of borax.

[0030] The present embodiment provides the preparation method of the dry vibrating material, comprising the following steps: taking each raw material in proportion; putting leather sand fine powder and borax into a small mixer and mixing for 10 minutes to obtain a fine powder mixed for later use and then put the mixed fine powder and other raw materials into a blender, stir evenly, vibrate and shape, bake at 350°C, and demould to obtain.

Embodiment 3

[0032] This embodiment provides a dry vibrating material, which is composed of the following raw materials by weight percentage: 60% of waste magnesia-chrome brick particles, 27% of fused magnesia fine powder, 8% of sucrose, and 5% of white clay.

[0033] This embodiment provides the preparation method of the dry vibrating material, which includes the following steps: taking each raw material in proportion; putting the fused magnesia fine powder and white clay into a small mixer and mixing for 10 minutes to obtain a finely mixed powder powder, and set aside; then put the mixed fine powder and other raw materials into a blender, stir evenly, vibrate and shape, bake at 250°C, and demould to obtain.

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Abstract

The invention relates to a dry vibration material used in a tundish. The material comprises the following components, by weight: 60-80 parts of waste magnesium chrome brick particles, 10-30 parts of fused magnesite fine powder or common fused magnesite fine powder, 5-8 parts of a binder, and 2-5 parts of an additive. The invention further provides a preparation method of the dry vibration material. The dry material provided by the invention can hardly be sintered, and is prone to disintegration during tilting. Waste magnesium chrome brick is adopted as a raw material, such that mineral resources and energy source of our nation are saved; environment pollution is reduced; refractory material cost and steelmaking cost are reduced; and a novel approach is provided for the reutilization of the waste magnesium chrome brick. The method has important significance for energy saving, consumption reduction and environment protection.

Description

technical field [0001] The invention relates to an unshaped refractory material, and mainly relates to a tundish dry vibrating material using waste magnesia-chrome bricks as a raw material and a preparation method thereof. Background technique [0002] Due to the rapid development of my country's iron and steel enterprises, cement, ceramics and other high-temperature industries, the demand for refractory materials is also increasing. The annual consumption of refractory materials has reached 9 million tons, and the used refractory materials are about 4 million tons. Most of these used refractory materials are discarded as garbage. Even if a small amount is used for primary use, the added value is very low, which wastes resources and pollutes the environment. [0003] If the magnesia-chrome bricks are directly combined after use and are discharged into the environment without treatment, the conversion of trivalent chromium ions into hexavalent chromium ions will cause great h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 于九利赵现华刘丽赵伟白二明史佳鹏王培勇曹仁锋任林黄健胡玲军滕国强王伟伟王恒车晓梅刘美荣
Owner 北京利尔高温材料股份有限公司
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