Aluminum melting furnace cast refractory material and preparation method thereof

A technology of refractory material and aluminum melting furnace, applied in the field of aluminum smelting, can solve the problems of poor thermal shock resistance, easy to be washed, corroded, reduce product quality, etc., achieve good thermal shock stability, enhance bonding force, prolong The effect of service life

Inactive Publication Date: 2013-09-25
霍山县新裕炉窑模具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the castables used in the construction of aluminum melting furnaces have poor thermal shock resistance, are easy to be washed and corroded, and are prone to damag

Method used

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Examples

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Example Embodiment

[0011] A castable refractory material for aluminum melting furnace, made of the following parts by weight (kg) of raw materials: bauxite 50, 1-50μm brown corundum 30, siliceous floating beads 20, alumina 15, white mud 20, quartz sand 25 , Mullite 10, 30-80μm silicon carbide 10, sodium tripolyphosphate 10, andalusite 20, zirconia 2, titanium oxide 2, potash feldspar 20, vermiculite 15.

[0012] The preparation method of cast refractory in aluminum melting furnace includes the following steps:

[0013] (1) Heat bauxite, andalusite, potash feldspar, and vermiculite to a high temperature of 2000-2500℃ to melt, stir for 30-40 minutes, rush into cold water to chill, and then crush into fine powder of 1-30μm ;

[0014] (2) Heat the quartz sand, mullite, alumina, and white mud to a high temperature of 1800-2000℃ to melt, stir for 30-40 minutes, pour into cold water to chill, and then crush into fine powder of 80-120μm;

[0015] (3). After mixing the fine powder obtained in steps (1) and (2) ...

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Abstract

An aluminum melting furnace cast refractory material is prepared through using the following raw materials, by weight, 50-60 parts of bauxite, 30-35 parts of 1-50mum brown fused alumina, 15-20 parts of a silicon-based floating bead, 10-15 parts of alumina, 20-25 parts of white mud, 20-25 parts of quartz sand, 10-15 parts of mullite, 10-15 parts of 30-80mum silicon carbide, 5-10 parts of sodium tripolyphosphate, 15-20 parts of andalusite, 1-2 parts of zirconia, 2-3 parts of titanium oxide, 15-20 parts of potash feldspar and 10-15 parts of vermiculite. In the invention, bauxite is used as a primary material, the particle sizes of the raw materials are preset, and parts of the raw materials are molten, and then are cooled and crushed, so the combination force among the raw materials is enhanced, the thermo stability of the refractory cast material is improved, the thermal shock resistance stability of the cast material is good, a reaction of the cast material and the aluminum element is difficult, the penetration of molten aluminum is effectively prevented, and the service life of a furnace is prolonged. The aluminum melting furnace can be used for 2-3 years, and the washing of the inner wall of the furnace is less.

Description

technical field [0001] The invention relates to an aluminum smelting technology, in particular to a pouring material used in the process of building an aluminum melting furnace, which can obviously improve the service life of the aluminum melting furnace. Background technique [0002] At present, the castables used in the construction of aluminum melting furnaces have poor thermal shock resistance, are easy to be washed and corroded, and are prone to damage, aluminization, and need to be repaired after a period of use, and the furnace wall is easy to contact with aluminum The elements react chemically, reducing the quality of the product. Contents of the invention [0003] The object of the present invention is to provide a pouring refractory material for an aluminum melting furnace and a preparation method thereof, which improves the thermal stability of the refractory castable material, prevents the castable material from being corroded and damaged, and has a long servic...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 文瑞倪建平张世菊陈杏莉汪健
Owner 霍山县新裕炉窑模具有限公司
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