Light high-aluminum heat preservation refractory brick and production method thereof

A production method and technology of refractory bricks are applied in the field of thermal insulation and refractory materials, which can solve the problems of inability to grasp the shrinkage rate of semi-finished products, environmental damage to operators, dust and noise pollution, etc., so as to save production time, improve yield, and avoid dust and noise. Effect

Inactive Publication Date: 2016-11-09

新密市瑞达耐火材料有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0002] Bricks with high porosity, low bulk density, and high aluminum content in refractory insulation materials are called lightweight high-alumina thermal insulation refractory bricks, but the existing lightweight high-alumina thermal insulation refractory bricks have the following disadvantages: 1. The production process must go through The step of drying in the sun requ...

Method used

The present invention adopts pressing machine that raw material is pressed into shape, therefore does not need water to assist molding in raw material, so required moisture is less, can reduce this step of drying in production process, has saved production time, production cost The required site and operators are reduced, and the output is increased. Because of the low water content, the shrinkage rate can be controlled, so the cutting after molding is reduced, dust and noise are avoided, and the yield rate is also improved. The burning loss used in the raw material is carbonate, and the gas released during the firing process is carbon dioxide, no waste gas will be produced, and it will not cause harm to the environment and operators.

The present invention adopts pressing machine that raw material is pressed into shape, therefore does not need water to assist molding in raw material, therefore required moisture is less, can reduce drying this step in production process, has saved production time, production cost The required site and operators are reduced, and the output is increased. Because of the low w...

Abstract

The invention discloses a light high-aluminum heat preservation refractory brick and a production method thereof, and relates to the field of heat preservation refractory materials. The light high-aluminum heat preservation refractory brick is prepared from 30-60 parts of high-aluminum bauxite, 5-10 parts of clay, 20-50 parts of raw bauxite, 10-30 parts of ignition lost matter and 8-12 parts of water. The production method comprises the production steps of raw material mixing, mud preparing by adding water, forming by pressing, calcining, natural cooling and packaging. According to the light high-aluminum heat preservation refractory brick, little water is needed, the drying step is omitted in the production process, therefore, the production time is saved, sites and operating personnel which are needed by production are reduced, and the yield is increased; the shrinking percentage can be controlled, therefore, cutting after forming is omitted, dust and noise are avoided, and meanwhile the finished product rate is increased; through the ignition lost matter adopted in the raw materials, no waste gas is generated in the firing process.

Application Domain

Ceramic shaping apparatusCeramicware

Technology Topic

High aluminumRaw material +3

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$Light high-aluminum heat preservation refractory brick and production method thereof$
$Light high-aluminum heat preservation refractory brick and production method thereof$

Examples

Experimental program(7)

Example Embodiment

[0010] Example 1

[0011] A kind of lightweight high-aluminum heat-preserving refractory brick, which is composed of the following raw materials by weight: 30-60 parts of high alumina bauxite, 5-10 parts of clay, 20-50 parts of raw bauxite, 10-30 parts of burning loss, 8 parts of water -12 servings.

[0012] The high alumina bauxite is 180 mesh high alumina fine powder, and the clay is 180 mesh clay fine powder.

[0013] The burning loss is carbonate.

[0014] A method for producing the described lightweight high-aluminum heat-preserving refractory bricks includes the following steps: (1) mixing high-alumina bauxite, clay, raw bauxite, and loss on ignition in proportions; (2) mixing in proportion to the mixed Water is added to the raw materials to make mud; (3) The press applies a pressure of 300-500KN to the mud through a mold to form a shape; (4) After a drying kiln at 80-200℃, it enters into a tunnel kiln for roasting 45-50 Hours, the temperature of the tunnel kiln is 1300-1450℃; (5) After sintering, it will be cooled naturally, and the package will be a finished product of light-weight insulation brick. Among them, the temperature of the drying kiln is a gradual temperature. The temperature at the entrance is 80°C and gradually increases to 200°C.

[0015] The present invention uses a press to press the raw materials into molding, so water is not needed in the raw materials to assist the molding, so less water is needed, the drying step can be reduced in the production process, and production time and space required for production are saved. And operators, to increase production. Because of the low water content, the shrinkage rate can be controlled, thus reducing the cutting after molding, avoiding dust and noise, and improving the yield. The ignition loss used in the raw material is carbonate, and the gas released during the firing process is carbon dioxide, no waste gas is generated, and it will not cause harm to the environment and operators.

Example Embodiment

[0016] Example 2

[0017] A lightweight high-alumina thermal insulation refractory brick, which is composed of the following raw materials by weight: 40-50 parts of high alumina bauxite, 6-9 parts of clay, 30-40 parts of raw bauxite, 15-25 parts of burning loss, 9 parts of water -11 copies.

[0018] The high alumina bauxite is 180 mesh high alumina fine powder, and the clay is 180 mesh clay fine powder.

[0019] The burning loss is carbonate.

[0020] A method for producing the described lightweight high-aluminum heat-preserving refractory bricks includes the following steps: (1) mixing high-alumina bauxite, clay, raw bauxite, and loss on ignition in proportions; (2) mixing in proportion to the mixed Water is added to the raw materials to make mud; (3) The press applies 350-450KN pressure to the mud through the mold, and presses it into shape; (4) After the 80-200℃ drying kiln enters the tunnel kiln for roasting 46-49 Hours, the temperature of the tunnel kiln is 1350-1400℃; (5) After sintering, it will be cooled naturally, and the package will be a finished product of light-weight insulation brick. Among them, the temperature of the drying kiln is a gradual temperature. The temperature at the entrance is 80°C and gradually increases to 200°C.

[0021] The present invention uses a press to press the raw materials into molding, so water is not needed in the raw materials to assist the molding, so less water is needed, the drying step can be reduced in the production process, and production time and space required for production are saved. And operators, to increase production. Because of the low water content, the shrinkage rate can be controlled, thus reducing the cutting after molding, avoiding dust and noise, and improving the yield. The ignition loss used in the raw material is carbonate, and the gas released during the firing process is carbon dioxide, no waste gas is generated, and it will not cause harm to the environment and operators.

Example Embodiment

[0022] Example 3

[0023] A lightweight high-alumina thermal insulation refractory brick is composed of the following raw materials in parts by weight: 45 parts of high alumina bauxite, 7 parts of clay, 35 parts of raw bauxite, 20 parts of burning loss, and 10 parts of water.

[0024] The high alumina bauxite is 180 mesh high alumina fine powder, and the clay is 180 mesh clay fine powder.

[0025] The burning loss is carbonate.

[0026] A method for producing the described lightweight high-aluminum heat-preserving refractory bricks includes the following steps: (1) mixing high-alumina bauxite, clay, raw bauxite, and loss on ignition in proportions; (2) mixing in proportion to the mixed Water is added to the raw materials to make mud; (3) The press applies a pressure of 400KN to the mud through a mold and presses it into a shape; (4) After a drying kiln at 80-200°C, it enters the tunnel kiln and is roasted for 48 hours. The temperature is 1375℃; (5) Naturally cool after sintering, and the package is a finished product of lightweight insulation brick. Among them, the temperature of the drying kiln is a gradual temperature. The temperature at the entrance is 80°C and gradually increases to 200°C.

[0027] The present invention uses a press to press the raw materials into molding, so water is not needed in the raw materials to assist the molding, so less water is needed, the drying step can be reduced in the production process, and production time and space required for production are saved. And operators, to increase production. Because of the low water content, the shrinkage rate can be controlled, thus reducing the cutting after molding, avoiding dust and noise, and improving the yield. The ignition loss used in the raw material is carbonate, and the gas released during the firing process is carbon dioxide, no waste gas is generated, and it will not cause harm to the environment and operators.

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Classification and recommendation of technical efficacy words

shorten production time
Increase production

Light high-aluminum heat preservation refractory brick and production method thereof

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

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Examples

Example Embodiment

Example Embodiment

Example Embodiment

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Description & Claims & Application Information

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