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Noise-reduction and fire-resistant brick and preparation method thereof

A refractory brick and sound-absorbing technology, applied in the field of refractory materials, can solve the problems that sound-absorbing agents cannot be used in refractory materials, etc., and achieve the effects of excellent thermal conductivity, cost saving for enterprises, and excellent tensile strength

Inactive Publication Date: 2017-10-24
长兴泓矿炉料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a sound-absorbing refractory brick with high thermal shock stability in order to overcome the problem that the existing sound-absorbing agent cannot be applied to refractory materials

Method used

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  • Noise-reduction and fire-resistant brick and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Weigh according to the following proportions: 50g of fused magnesia sand, 5g of andalusite powder, and 10g of white carbon black are mixed in a mixer, and the mixture is evenly obtained to obtain granules;

[0032] (2) Weigh polysiloxane 0.1g, high-density polyethylene 0.3g, polyurethane 0.1g, biomass activated carbon fiber 0.03g, silicon micropowder (particle diameter2 / g) 0.005g, 0.005g of hollow microspheres (filled with epoxy acrylic resin) are made into 0.69g of silencer, weigh 2g of phenolic resin, and slowly add 2 / 3 of phenolic resin to the obtained product in step (1) Add the sound suppressing agent to the granular material, and finally add the remaining phenolic resin, and mix the material at 60°C for 30 minutes to obtain the mixture;

[0033] (3) The mixture obtained in step (2) is subjected to high-pressure molding, fired in a high-temperature tunnel kiln at 1400°C to 1600°C, kept for 6 hours, and cooled to obtain a sound-absorbing refractory brick.

Embodiment 2

[0035] (1) Weigh according to the following proportions: 60g of fused magnesia sand grains, 15g of andalusite powder, and 20g of white carbon black are mixed in a blender, and the mixture is uniform to obtain granules;

[0036] (2) Weigh 0.2g of polysiloxane, 0.4g of high-density polyethylene, 0.2g of polyurethane, 0.03g of biomass carbon molecular sieve, 0.06g of biomass-based activated carbon, 0.35g of silicon micropowder (particle size2 / g) 0.015g, hollow microspheres (filled with epoxy acrylic resin) 0.02g to make 1.275g of silencer, weigh 6g of phenolic resin, first slowly add 2 / 3 of phenolic resin to step (1) obtained Add the sound suppressing agent to the granular material, and finally add the remaining phenolic resin, and mix the material at 80°C for 20 minutes to obtain the mixture;

[0037] (3) The mixture obtained in step (2) is subjected to high-pressure molding, fired in a high-temperature tunnel kiln at 1400°C to 1600°C, kept for 8 hours, and cooled to obtain a so...

Embodiment 3

[0039] (1) Weighing according to the following proportioning: 55g of fused magnesia sand grains, 10g of andalusite powder, and 15g of white carbon black are mixed in a mixer, and the mixture is evenly obtained to obtain granules;

[0040](2) Weigh 0.15g of polysiloxane, 0.35g of high-density polyethylene, 0.15g of polyurethane, 0.06g of biomass-based activated carbon, 0.25g of silicon micropowder (particle diameter2 / g) 0.01g, hollow microspheres (filled with epoxy acrylic resin) 0.01g to make 0.98g of silencer, weigh 4g of phenolic resin, first slowly add 2 / 3 of phenolic resin to step (1) obtained Add the sound suppressing agent to the granular material, and finally add the remaining phenolic resin, and mix the material at 70°C for 25 minutes to obtain the mixture;

[0041] (3) The mixture obtained in step (2) is subjected to high-pressure molding, fired in a high-temperature tunnel kiln at 1400°C to 1600°C, kept for 7 hours, and cooled to obtain a sound-absorbing refractory b...

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Abstract

The invention provides a noise-reduction and fire-resistant brick and a preparation method thereof. The noise-reduction and fire-resistant brick is prepared from the following raw materials in parts by mass: 50 to 60 parts of electrically melted magnesia granules, 5 to 15 parts of andalusite powder, 10 to 20 parts of white carbon black, 2 to 6 parts of phenolic resin and 0.69 to 1.275 parts of noise-reduction agent. The noise-reduction and fire-resistant brick provided by the invention has long service cycle and noise-reduction function; the raw materials cost is low, the prepared noise-reduction and fire-resistant brick has excellent heat-resistant performance and heat shock stabling performance; the preparation process is simple, the operation period is short and the production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a sound-absorbing refractory brick with high thermal shock stability and a preparation method thereof. Background technique [0002] Refractory bricks are refractory materials made of refractory clay or other refractory raw materials. Pale yellow or brownish. It is mainly used to build smelting furnaces, which can withstand high temperatures of 1580-1770 °C. Refractory bricks are refractory materials with certain shapes and sizes. According to the preparation process, it can be divided into fired bricks, unfired bricks, fused bricks (fused cast bricks), refractory and heat-insulating bricks; according to the shape and size, it can be divided into standard bricks, ordinary bricks, special bricks, etc. It can be used as high-temperature building materials and structural materials for building kilns and various thermal equipment, and can withstand various physical an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/043
CPCC04B35/043C04B2235/3418C04B2235/3463C04B2235/422C04B2235/96C04B2235/9607
Inventor 佘建锋
Owner 长兴泓矿炉料有限公司
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