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Heat insulation spray coating

A technology of spraying coatings and perlite, which is applied in the field of refractory materials, can solve the problems of reduced transportation output, unevenness of pipelines, and increased fluid resistance, and achieve the effects of increasing adhesion rate, improving reduction resistance, and ensuring smoothness

Inactive Publication Date: 2014-02-05
浙江科明电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in order to reduce fluid resistance, various fluid pipelines are generally cylindrical structures. It is difficult to use formwork and pouring construction methods for this structure. If bricklaying methods are used, various special-shaped bricks will be used, resulting in Construction costs and material costs will increase significantly
[0003] In addition, the existing thermal insulation spray paint has a small volume density, which will cause different volume shrinkage during use, or cause uneven potholes inside the pipeline, resulting in increased resistance to the fluid being transported and reducing the output of the transport

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Use the ingredients in formula 1, stir evenly for 5 minutes, then spray and apply, and dry and harden naturally within 25 minutes; natural curing for 4 hours. This method can be sprayed quickly without formwork, has good acid resistance, good heat preservation effect, and is resistant to reducing atmosphere at the same time, and the cost is also low. After being used in reducing hot air pipelines, the inside of the pipeline is smooth. Before using this material, the temperature of the outer wall of the pipeline It is 350°C. After using this product, the outer wall of the pipe is reduced to 75°C, and the effect is good.

Embodiment 2

[0037] Use the ingredients of formula 2, stir evenly for 5 minutes, then spray and apply, and dry and harden naturally within 40 minutes; natural curing for 6 hours. This method can be sprayed quickly without formwork, has good acid resistance, good heat preservation effect, and is resistant to reducing atmosphere at the same time, and the cost is also low. After being used in the hot air pipeline, the inside of the pipeline is smooth. Before using this material, the temperature of the outer wall of the pipeline is 350 ℃, after using this product, the outer wall of the pipe is reduced to 70 ℃, and the effect is good.

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PUM

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Abstract

The invention relates to a heat insulation spray coating, belonging to the field of fireproof materials. The heat insulation spray coating comprises the following components in parts by weight: 38-58 parts of waste lightweight clay bricks, 3-9 parts of raw perlite, 10-20 parts of cement, 20-30 parts of flint clay powder, 5-8 parts of Guangxi mud, 1-3 parts of talc powder and 0.5-2 parts of additional aluminum borate whiskers. The heat insulation spray coating disclosed by the invention can be used for rapid construction in use, is practical, does not need special maintenance, has good acid resistance and reduction resistance, is good in service performance, and is suitable for occasions requiring heat insulation or occasions with strong reducing properties.

Description

technical field [0001] The invention relates to a thermal insulation spray coating, which belongs to the field of refractory materials. Background technique [0002] Some pipelines transporting high-temperature fluids require high temperature resistance, and it is also necessary to ensure that the temperature of the transported fluid does not drop. At this time, the direct use of various heat-resistant steels will not only cause oxidation and corrosion of various heat-resistant steels and reduce the service life of the pipeline, but also cause a large amount of heat to be dissipated into the air, resulting in a decrease in the temperature of the fluid being transported, which will lead to a failure to comply with the requirements Fluid temperature mismatches cause production difficulties and waste energy. Therefore, in order to prevent pipeline erosion, a layer of insulation material is generally used. In addition, in order to reduce fluid resistance, various fluid pipelin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 徐梅子
Owner 浙江科明电子有限公司
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