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Forsterite structure and thermal insulation integrated composite brick and preparation method thereof

A forsterite and composite brick technology, applied in the field of refractory materials, can solve the problems of poor thermal insulation performance, poor wear resistance, low structural strength, etc., and achieve the effects of energy saving, good wear resistance and convenient construction

Inactive Publication Date: 2013-05-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of poor wear resistance, low structural strength, and poor thermal insulation performance of the existing refractory composite bricks and their preparation methods, the present invention provides a composite brick with good wear resistance, high structural strength, and thermal insulation performance. Good forsterite structural heat insulation integrated composite brick and preparation method

Method used

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  • Forsterite structure and thermal insulation integrated composite brick and preparation method thereof
  • Forsterite structure and thermal insulation integrated composite brick and preparation method thereof
  • Forsterite structure and thermal insulation integrated composite brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The particle gradation and mass percentage of the raw materials used in the heavy working layer in this embodiment are:

[0035]

[0036]

[0037] Among them, the raw materials used are forsterite from Yichang, Hubei, silica and sintered magnesia with grade GS-98.5.

[0038] According to the above proportioning ratio, the mass percent MgO% of the obtained heavy working layer composition is 40%, SiO 2 % is 45%, and the rest are other ingredients introduced by raw materials.

[0039] The raw materials and their mass percentages used in the lightweight heat insulation layer are: 70% of corundum hollow spheres, 30% of 325 mesh forsterite, 6% of pulp waste liquid with additional binder, among which Al 2 o 3 The composition mass percentage is 93%.

[0040] The manufacturing method of forsterite structural heat insulation integrated composite brick comprises the following steps:

[0041] (1) Ingredients:

[0042] Heavy working layer: first mix aggregate particles an...

Embodiment 2

[0047] The particle gradation and mass percentage of the raw materials used in the heavy working layer in this embodiment are:

[0048]

[0049] Among them, the raw materials used are forsterite from Yichang, Hubei, silica and fused magnesia with the grade GS-98.5.

[0050] According to the above proportioning ratio, the mass percent MgO% of the obtained heavy working layer composition is 50%, SiO 2 % is 43%, and the rest are other ingredients introduced by raw materials.

[0051] The raw materials and their mass percentages used in the lightweight heat insulation layer are: 60% corundum hollow balls, 10% lightweight mullite aggregates, 30% 325 mesh forsterite, 6% pulp waste liquid with additional binder, Al in the corundum hollow spheres used 2 o 3 The mass percentage of the component is 95%, and the mass percentage of the component in the lightweight mullite aggregate is Al 2 o 3 65%.

[0052] The manufacturing method of forsterite structural heat insulation integra...

Embodiment 3

[0059] The particle gradation and mass percentage of the raw materials used in the heavy working layer in this embodiment are:

[0060]

[0061] Among them, the raw materials used are silica and fused magnesia of forsterite in Yichang, Hubei.

[0062] According to the above proportioning ratio, the mass percent MgO% of the obtained heavy working layer composition is 51%, SiO 2 % is 30%, and the rest are other ingredients introduced by raw materials.

[0063] The raw materials and their mass percentages used in the lightweight heat insulation layer are: 40% of corundum hollow balls, 15% of lightweight high-alumina aggregates, 45% of 325-mesh forsterite, and 10% of pulp waste liquid with additional binder, of which Al in corundum hollow spheres used 2 o 3 The mass percentage of the component is 93%, and the mass percentage of the component in the lightweight high-alumina aggregate is Al 2 o 3 70%.

[0064] The manufacturing method of forsterite structural heat insulatio...

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Abstract

The invention provides a forsterite structure and thermal insulation integrated composite brick. The composite brick is characterized by comprising a forsterite heavy working layer and a light thermal insulation layer prepared from light aggregates and powder which serve as raw materials and being formed by compositing the heavy working layer and the light thermal insulation layer, wherein the length ratio of the heavy working layer to the light thermal insulation layer is (1-5):(3-1). The invention also provides a preparation method of the composite brick. The composite brick has the advantages of good wear resistance, higher structural strength and good thermal insulation property.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a refractory composite brick and a preparation method thereof. Background technique [0002] With the continuous emergence of new technologies for cement production, the main equipment of cement production is developing in the direction of large-scale, increasing production, improving quality, saving energy, reducing consumption, and reducing costs have become the key to increasing efficiency in production management. The rotary kiln is mainly composed of kiln shell, refractory bricks and transmission equipment. During the production process, the heat in the material is transferred to the kiln skin, refractory bricks and kiln shell through radiation and conduction, and the heat transferred to the kiln shell is then dissipated into the atmosphere through radiation and convection. Since the thermal conductivity and the thickness of the material determine the temperature drop, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 王家邦
Owner ZHEJIANG UNIV
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