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Class A inorganic fireproof foam insulation board produced from tailings and preparation method thereof

An insulation board and tailings technology, applied in the field of building insulation, can solve the problems of short service life, high cost, and flammability of B-grade foam insulation boards, achieve strong impact resistance and durability, reduce production raw material costs, and unique The effect of the fire protection function

Active Publication Date: 2017-03-08
CHINESE ACAD OF GEOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a grade A inorganic fireproof foam insulation board produced by using tailings and a preparation method thereof, which solves the problem that the grade B foam insulation board produced with organic chemical ingredients is flammable, has poor fireproof performance and high cost, etc. Technical and technological problems; also solve the problems of existing product performance indicators such as high water absorption, easy to fall off, short service life, a large amount of organic components in the product, polluting the environment and human health; at the same time, alleviate the problems caused by the large accumulation of copper tailings and aluminum tailings The problem of causing environmental pollution and bringing great safety hazards to people's lives

Method used

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  • Class A inorganic fireproof foam insulation board produced from tailings and preparation method thereof
  • Class A inorganic fireproof foam insulation board produced from tailings and preparation method thereof

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Effect test

Embodiment 1

[0041] The grade A inorganic fireproof foam insulation board produced by tailings, the raw material composition according to weight parts is as follows:

[0042] 40 copies of copper tailings;

[0043] 50 copies of bauxite tailings;

[0044] 4 parts of silica sand;

[0045] 5.5 parts of industrial soda ash;

[0046] High temperature foaming agent 0.5 parts;

[0047] During preparation, the prepared powder is fed into a ball mill and mixed with a certain amount of water to grind for 8 hours. After grinding, the slurry is sent to the spray tower for granulation, and the powder is sent to the press for compression. The shed is surrounded by a refractory baffle with a thickness of more than 200mm. The dryer is pushed to dry at 200℃, and then pushed into the electric furnace or roller kiln for high temperature firing. The firing temperature is 1140℃. After cooling, the mold is unloaded, and the sample is cut into the required specifications according to requirements.

[0048] The Class A inor...

Embodiment 2

[0050] The grade A inorganic fireproof foam insulation board produced by tailings has the following raw material composition according to weight parts:

[0051] 50 copies of copper tailings;

[0052] 40 copies of bauxite tailings;

[0053] 3.2 parts of silica sand;

[0054] 6 parts of industrial soda ash;

[0055] High temperature foaming agent 0.8 parts;

[0056] Send the prepared powder to the ball mill and mix with a certain amount of water for 8 hours. After grinding, send the slurry to the spray tower for granulation. The powder is sent to the press for compression, and the embryo is placed on the fireproof shed. , And surround it with a refractory baffle with a thickness of more than 200mm, push it into the dryer to dry at 200℃, and then push it into the electric furnace or roller kiln for high temperature firing, the firing temperature is 1160℃, and it will be unloaded after cooling. Die, cut the sample into the required specifications according to the requirements.

[0057] The ...

Embodiment 3

[0059] The grade A inorganic fireproof foam insulation board produced from tailings has the following raw material composition according to weight parts:

[0060] 55 copies of copper tailings;

[0061] 33 copies of bauxite tailings;

[0062] 7.8 parts of silica sand;

[0063] 3.2 parts of industrial soda ash;

[0064] 1 part of high temperature foaming agent;

[0065] Send the prepared powder to the ball mill and mix it with a certain amount of water for 8 hours. After grinding, send the slurry to the spray tower for granulation. Send the powder to the press for compression, and place the embryo on the fireproof shed. , And surround it with a refractory baffle greater than 200mm thick, push it into the dryer to dry at 200℃, and then push it into the electric furnace or roller kiln for high temperature firing, the firing temperature is 1165℃, and it will be unloaded after cooling. Die, cut the sample into the required specifications according to the requirements.

[0066] The Class A ino...

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Abstract

The invention relates to an A-grade inorganic fireproof foam insulation board produced by tailings and a preparation method of the insulation board. Raw materials include, by weight, 40-60 parts of copper tailings, 30-50 parts of bauxite tailings, 0-15 parts of silica sand, 2-10 parts of industrial sodium carbonate and 0.2-1.5 parts of high-temperature foaming agents. According to a preparation process, the insulation board is produced by 'wet ball-milling, spray granulation and high-temperature foaming'. The copper tailings and the bauxite tailings serve as main raw materials, the insulation board cannot combust at the temperature higher than 750 DEG C, raw material production cost is reduced by 36-45%, the insulation board can fundamentally solve the problems that an insulation board mainly comprising organic components is combustible, poor in fireproof performance and high in cost, pollutes environments and harms human health in the current domestic market, and the existing insulation board is high in water absorption, short in service life and low in performance index and easily falls off. Environmental problems and potential safety accidents caused by tailings stacking are effectively relieved.

Description

Technical field [0001] The invention relates to an inorganic non-metallic environment-friendly and energy-saving insulation material for building, which belongs to the field of building insulation, in particular to an A-level inorganic fireproof foam insulation board produced by using tailings and a preparation method thereof. Background technique [0002] Building exterior wall insulation is an important part of building energy saving and has attracted more and more attention. In the classification of the combustion performance of high-rise building decoration materials, Class A is non-combustible, Class B1 is non-combustible, Class B2 is combustible, and Class B3 is combustible. Class A is a material with no ignition point and thermal insulation effect, and it is a flame-retardant material. It has the characteristics of low density, low thermal conductivity, high pressure-bearing capacity, convenient construction, economical and durable, etc. It is widely used as thermal insula...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02
Inventor 张金青孙小卫臧崇颖
Owner CHINESE ACAD OF GEOLOGICAL SCI
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