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Foamed ceramic wall insulation material and preparation method thereof

A technology of thermal insulation materials and foam ceramics, applied in the field of thermal insulation materials, can solve the problems of low reprocessing utilization rate, poor thermal insulation and energy saving effect, serious environmental pollution, etc., and achieve excellent thermal shock resistance, cost reduction, and low heat transfer efficiency. Effect

Active Publication Date: 2014-07-30
ZIBO LUYOU REFRACTORY MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, rock wool also has the disadvantages of high hygroscopicity and poor thermal insulation effect, and rock wool is a natural mineral and a non-renewable resource.
Generally speaking, inorganic thermal insulation materials have good fire performance, but they also have the characteristics of higher density and higher thermal conductivity. Compared with organic materials, their thermal insulation and energy saving effects are poor.
[0004] my country produces more than one billion tons of industrial solid waste every year, and the reprocessing utilization rate is low, which seriously pollutes the environment

Method used

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  • Foamed ceramic wall insulation material and preparation method thereof
  • Foamed ceramic wall insulation material and preparation method thereof
  • Foamed ceramic wall insulation material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A foam ceramic wall insulation material is made of the following raw materials in weight fraction:

[0021]

[0022] Among them: the particle size of coal gangue and Shuoyan is 80 mesh, the particle size of fly ash is 120 mesh, the particle size of ore rock is 80 mesh, and the particle size of clay is 120 mesh.

[0023] The preparation method comprises the following steps:

[0024] All raw materials are pulverized separately, mixed in proportion, stirred by a mixer, fed and fired, the firing temperature is 1150°C, and the firing time is 48 hours.

[0025] The product performance test result that embodiment 1 prepares is as follows: Bulk density is 270kg / m 3 , thermal conductivity 0.095W / (M·K), tensile strength 0.35MPa, water absorption 7%.

Embodiment 2

[0027] A foam ceramic wall insulation material is made of the following raw materials in weight fraction:

[0028]

[0029] Among them: the particle size of coal gangue is 120 mesh, the particle size of fly ash is 100 mesh, the particle size of ore rock is 100 mesh, and the particle size of clay is 80 mesh.

[0030] The preparation method comprises the following steps:

[0031] All raw materials are pulverized separately, mixed in proportion, stirred by a mixer, fed and fired, the firing temperature is 1120°C, and the firing time is 52 hours.

[0032] The product performance test result that embodiment 2 prepares is as follows: Bulk density is 250kg / m 3 , thermal conductivity 0.092W / (M·K), tensile strength 0.29MPa, water absorption 6%.

Embodiment 3

[0034] A foam ceramic wall insulation material is made of the following raw materials in weight fraction:

[0035]

[0036] Among them: the particle size of Shuoyan is 100 mesh, the particle size of fly ash is 80 mesh, the particle size of ore rock is 120 mesh, and the particle size of clay is 100 mesh.

[0037] The preparation method comprises the following steps:

[0038] All the raw materials are pulverized separately, mixed in proportion, stirred by a mixer, fed and fired, the firing temperature is 1140°C, and the firing time is 50 hours.

[0039] The product performance test result that embodiment 3 prepares is as follows: Bulk density is 280kg / m 3 , thermal conductivity 0.090W / (M·K), tensile strength 0.32MPa, water absorption 6.5%.

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Abstract

The invention particularly relates to a foamed ceramic wall insulation material. The foamed ceramic wall insulation material is prepared from the following raw materials in weight fraction: 16%-20% of silicon carbide, 40%-45% of one or two of coal gangue or shale, 5%-8% of pulverized coal ash, 20%-25% of ore rock and 5%-7% of clay. According to the foamed ceramic wall insulation material, the thermal conduction efficiency is reduced and foamed ceramic has the characteristics of low heat transfer efficiency, excellent thermal shock resistance, reduced weight and the like, and is an ideal heat preservation and heat insulation material. The invention also provides a method for preparing the foamed ceramic wall insulation material by virtue of a physical reaction. Compared with the traditional chemical reaction process, the preparation method has the advantages that the process is more reasonable, the cost is reduced, no any radioactive material is generated in the production process, and thus the energy conservation and environment friendliness are achieved.

Description

technical field [0001] The invention belongs to the field of thermal insulation materials, and in particular relates to a foam ceramic wall thermal insulation material and a preparation method thereof. Background technique [0002] Since the development of thermal insulation materials, organic thermal insulation materials have always been the mainstream material and occupy an important position in the entire industry. Organic thermal insulation materials are mainly derived from petroleum by-products. The biggest advantages of organic thermal insulation materials are light weight, heat preservation, good heat insulation, and low cost. Also low, the biggest disadvantage is poor safety, easy to age, easy to burn, low fire resistance, and the burning smoke is large and toxic. [0003] Among the inorganic insulation materials, rock wool and glass wool are widely used in the international market. The maximum temperature of rock wool can reach 650°C, and glass wool can reach 300°C....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00
Inventor 苏玉恩孟伟春车轶
Owner ZIBO LUYOU REFRACTORY MATERIAL
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