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Structure heat-insulation integrated composite brick and preparation method thereof

A composite brick and binder technology, applied in the field of refractory materials, can solve the problems of high thermal conductivity, low strength, low refractoriness, etc., and achieve the effects of saving energy consumption, reducing material consumption, and prolonging the service life of equipment

Inactive Publication Date: 2011-11-02
傅晓云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of large thermal conductivity of magnesia-alumina bricks, magnesia-chrome bricks and silica-molybdenum bricks used in existing rotary kilns, the purpose of the present invention is to provide a series of structural heat insulation integrated composite bricks and a preparation method. Combining methods to reduce the thermal conductivity, and at the same time to overcome the shortcomings of low strength and low refractoriness of the light parts of existing composite bricks

Method used

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  • Structure heat-insulation integrated composite brick and preparation method thereof
  • Structure heat-insulation integrated composite brick and preparation method thereof
  • Structure heat-insulation integrated composite brick and preparation method thereof

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Effect test

Embodiment 1

[0037] Embodiment 1: The structural and thermal insulation integrated composite brick of this embodiment is a magnesia structural and thermal insulation integrated composite brick.

[0038]The MS98A type sintered magnesia used in the heavy working layer of this embodiment is the raw material, and the particle gradation and its mass percentage are as follows:

[0039]

[0040] The mass percentage of the MgO component of the heavy working layer obtained by the above proportion is 87%.

[0041] The raw materials and their mass percentages used in the lightweight heat insulation layer are: 55% of magnesium-chromium hollow spheres, 45% of 325-mesh spinel micropowder, 6% of yellow dextrin, and Cr in the magnesium-chromium hollow spheres used 2 o 3 The mass percentage content is 17%, and the MgO mass percentage content is 80%.

[0042] The preparation method of the magnesia structural heat integrated composite brick comprises the following steps:

[0043] (1) Ingredients:

[0...

Embodiment 2

[0048] Embodiment 2: The structure and heat insulation integrated composite brick of this embodiment is a magnesia structure and heat insulation integrated composite brick.

[0049] The MS98A type sintered magnesia and the DMS-98 type fused magnesia used in the heavy working layer of this embodiment are raw materials, and the particle gradation and its mass percentage are as follows:

[0050]

[0051] The mass percentage of MgO component in the heavy working layer obtained by the above proportion is 95%.

[0052] The raw materials and their mass percentages used in the light heat insulation layer are: 55% of magnesium-aluminum hollow spheres, 45% of 325-mesh spinel micropowder, 6% of industrial lignin sulfonate solution, and Al in the magnesium-aluminum hollow spheres used 2 o 3 The mass percentage is 70%, and the MgO mass percentage is 28%.

[0053] The manufacturing method of the magnesia structural heat insulation integrated composite brick comprises the following step...

Embodiment 3

[0059] Embodiment 3: The structural heat insulation integrated composite brick of this embodiment is a magnesia structure heat insulation integrated composite brick.

[0060] MS83 type sintered magnesia is used as raw material in the heavy working layer, and the particle gradation and its mass percentage are as follows:

[0061]

[0062] The mass percentage of the MgO component of the heavy working layer obtained according to the above proportion is 80%.

[0063] The raw materials and their mass percentages used in the light heat insulation layer are: 45% of magnesium oxide hollow spheres, 55% of 325 mesh spinel micropowder, 10% of methyl cellulose solution, and the mass of MgO in the magnesium oxide hollow spheres used The percentage content is 97%.

[0064] The manufacturing method of the magnesia structural heat insulation integrated composite brick comprises the following steps:

[0065] (1) Ingredients:

[0066] Heavy working layer: firstly mix the sintered magnesia...

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Abstract

The invention relates to a fireproof composite brick and a preparation method thereof and discloses a structure heat-insulation integrated composite brick and a preparation method thereof. The structure heat-insulation integrated composite brick comprises a heavy working layer made of a compact fireproof material and a light heat insulation layer made of a light aggregate; the heavy working layer and the light heat insulation layer are compounded by adopting vibration pressurization or machine moulding; and a length size ratio of the heavy working layer to the light heat insulation layer is (1-5) to (3-1). By the invention, the shortcoming that the heat conducting coefficient of a heavy brick is large is overcome. The invention provides the structure heat-insulation integrated composite brick having high abrasive resistance, high fire resistance degree, high structural strength and high temperature preservation and heat insulation performance and the preparation method of the structure heat-insulation integrated composite brick.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and relates to a refractory composite brick and a preparation method thereof, in particular to a structural heat insulation integrated 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. Most of the existing refractory bricks and heat insulation bricks have a single structure, and bricks with various properties need to be used together. If they are used on relatively fixed equipment, such as tunnel kilns and downdraft kilns, they can meet the requirements when used together. ; But on some relatively moving equipment, such as a rotary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D1/06C04B35/66
Inventor 傅晓云
Owner 傅晓云
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