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High-temperature resistant silicon carbide reducing tank and preparation method thereof

A silicon carbide and reduction tank technology, applied in the field of reduction tanks, can solve the problems of low mechanical strength of clay tanks, increase production costs, and poor thermal stability, and achieve high mechanical strength, low production energy consumption, and improved service life. Effect

Inactive Publication Date: 2012-12-26
连云港市东茂矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Reduction tanks are now often made of clay. Each tank has a bottom and is then stacked on the kiln car. The clay tank has low mechanical strength and is easy to break, and its thermal stability is not strong. After a cycle of cold and heat, 40% of the tank it's broken
Clay pots need to be pressure-formed during the production process, and their thermal stability is not strong. Before use, they must be calcined at a high temperature of 1000 degrees to have a certain mechanical strength, and they are easily damaged in an environment where cold and hot are used alternately, so the production is greatly improved. cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1, a high-temperature-resistant silicon carbide reduction tank. After fully mixing silicon carbide and a binder, it is added to a tank-making mold, vibrated and compacted, and solidified and formed. The weight ratio of silicon carbide and binder is 88-88. 92:12~8; the purity of silicon carbide ≥ 95%, Fe 2 o 3 ≤0.50%;

[0017] The silicon carbide is composed of four kinds of silicon carbide raw materials with a particle size of 3-5mm, 1-3mm, 0.1-1mm and 200 mesh, and the weight ratio of the above four kinds of silicon carbide raw materials is 34-38:20-25:15- 20:20-25;

[0018] The binder includes clay, feldspar, asbestos fiber, high-purity metal silicon and furan resin, and the weight ratio of clay, feldspar, asbestos fiber, high-purity metal silicon and resin is 8-16: 2-4:4 ~8: 0.01~0.1: 0.5~3.

[0019] Its preparation method steps are as follows:

[0020] (1) Mix the binder thoroughly and evenly, and then divide it into three groups: binder I, binder II an...

Embodiment 2

[0025] Embodiment 2, a high-temperature-resistant silicon carbide reduction tank, is after fully mixing silicon carbide and a binder, adding it into a tank-making mold, vibrating and compacting and solidifying and forming, and the weight ratio of silicon carbide and the binder is 90: 10; the purity of silicon carbide ≥ 95%, Fe 2 o 3 ≤0.50%;

[0026] The silicon carbide is composed of four kinds of silicon carbide raw materials with a particle size of 3-5mm, 1-3mm, 0.1-1mm and 200 mesh, and the weight ratio of the above four kinds of silicon carbide raw materials is 36:23:18:23;

[0027] The binder includes clay, kaolin, feldspar, asbestos fiber, high-purity metal silicon and furan resin, and the weight ratio of clay, kaolin, feldspar, asbestos fiber, high-purity metal silicon and resin is 4-8:4 ~8: 2~4: 4~8: 0.01~0.1: 0.5~3.

[0028] Its preparation method steps are as follows:

[0029] (1) Mix the binder thoroughly and evenly, and then divide it into three groups: binder ...

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Abstract

The invention discloses a high-temperature resistant silicon carbide reducing tank. After silicon carbide and a bonding agent are fully mixed, the silicon carbide and the bonding agent are added into a tank production mould, and are vibrated, compacted, and solidified, and the weight ratio of the silicon carbide to the bonding agent is 88-92: 12-8; the silicon carbide comprises four silicon carbide raw materials with particles sizes of 3-5 mm, 1-3 mm, 0.1-1 mm and 200 meshes, and the bonding agent comprises clay, feldspar, asbestos fiber, high-purity metal silicon and furan resin. The high-temperature resistant silicon carbide reducing tank, provided by the invention, is used under the high-temperature environment, and has the advantages of strong heat stability, high mechanical intensityand difficulty in destroying after heat and cold alternative use, the silicon carbide tank filled with the material enters into a burning furnace, after burning at 900-1200 DEG C, the rupture strength is 80 MPa, and the repeated times can reach 200 times per silicon carbide tank. The high-temperature resistant silicon carbide reducing tank, provided by the invention, has the advantages of simple production method, high production efficiency, small production energy consumption and low production cost.

Description

technical field [0001] The present invention relates to a reduction tank, in particular to a high temperature resistant silicon carbide reduction tank; the invention also relates to a preparation method of the aforementioned silicon carbide reduction tank. Background technique [0002] Reduction tanks are now often made of clay. Each tank has a bottom and is then stacked on the kiln car. The clay tank has low mechanical strength and is easy to break, and its thermal stability is not strong. After a cycle of cold and heat, 40% of the tank It was broken. Clay pots need to be pressure-formed during the production process, and their thermal stability is not strong. Before use, they must be calcined at a high temperature of 1000 degrees to have a certain mechanical strength, and they are easily damaged in an environment where cold and hot are used alternately, so the production is greatly improved. cost. Contents of the invention [0003] The technical problem to be solved b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565C04B35/622C04B35/63
Inventor 董铖昊王鹏辉张燕锋
Owner 连云港市东茂矿业有限公司
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