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A method for manufacturing high temperature and energy saving xonotlite composite thermal insulation board

A technology of xonotlite and manufacturing methods, which is applied to chemical instruments and methods, heat preservation, heat exchange equipment, etc., can solve the problems of large equipment investment, poor heat insulation effect, and large heat loss, etc., to reduce logistics costs and withstand The effect of high temperature and high strength

Inactive Publication Date: 2015-12-30
莱州明发隔热材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the market, there are anorthite insulation boards, special aluminum silicate insulation boards, inorganic nanoporous insulation boards, clay lightweight insulation boards, and high-alumina lightweight insulation boards for cement industry insulation materials. The thermal temperature can reach the requirement of 1100 ℃, but it is difficult to be widely used in the cement industry because of the high density and large investment in equipment infrastructure, poor heat insulation effect, large heat loss, or high or even high price.

Method used

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  • A method for manufacturing high temperature and energy saving xonotlite composite thermal insulation board
  • A method for manufacturing high temperature and energy saving xonotlite composite thermal insulation board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) On a large surface of a 95mm thick xonotlite thermal insulation board, evenly spray a layer of 810 organic glue, and stick a layer of 20mm thick anorthite thermal insulation board with an equal area to form a composite. The overall thickness is 115mm. The density of anorthite insulation board is 525kg / m 3 , the compressive strength is 1.1MPa, and the heat-resistant temperature is 1200°C. The compressive strength of the xonotlite thermal insulation board used is ≥0.7MPa.

[0027] (2) Evenly spray a layer of 810 adhesive on the outer surface of the composite in step (1), and cover the whole with aluminum foil. After curing, the finished high-temperature and energy-saving xonotlite composite insulation board is obtained. The properties of the plates are shown in Table 2.

Embodiment 2

[0029] (1) Prepare the same complex as in Example 1.

[0030] (2) Mix evenly zirconium silicate powder with a mixture of water glass and water to make a coating. Zirconium silicate powder accounts for 20% by weight of the mixture of water glass and water, and water glass: the weight ratio of water is 0.1.

[0031] (3) Spray evenly a layer of coating obtained in step (2) on the two large surfaces outside the complex obtained in step (1), and let it dry. The amount of spraying is 30g / m2 as dry powder 2 .

[0032] (4) Evenly spray a layer of 810 adhesive on the outer surface of the composite in step (3), and cover the whole with aluminum foil. After curing, the finished high-temperature and energy-saving xonotlite composite insulation board is obtained. The properties of the plates are shown in Table 2.

Embodiment 3

[0034] (1) On a large surface of a 75mm thick xonotlite insulation board, evenly spray a layer of silica sol, and stick a layer of 15mm thick special aluminum silicate insulation board with an equal area, special aluminum silicate insulation Board density is 485kg / m 3 , the compressive strength is 1.3MPa, and the heat-resistant temperature is 1100°C. The compressive strength of the xonotlite thermal insulation board used is ≥0.7MPa.

[0035] (2) Mix the mixture of titanium dioxide, water glass and water evenly to form a paint. The weight ratio that titanium dioxide accounts for the mixture of water glass and water is 50%, and water glass: the weight ratio of water is 0.2.

[0036] (3) Spray evenly a layer of the coating obtained in step (2) on the two large surfaces outside the complex obtained in step (1), and dry it. The amount of spraying is 120g / m2 as dry powder 2 .

[0037] (4) Put the complex in step (3) into an aluminum foil bag, seal the seal, and evacuate to obta...

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Abstract

The present invention is a manufacturing method of high-temperature and energy-saving xonotlite composite heat-insulating board. The xonotlite heat-insulating board is used as a substrate, and a layer of high-temperature heat-insulating board with a heat-resistant temperature of 1100°C is glued on its hot surface, and then The outer surface is sprayed with a layer of zirconium silicate powder or / and titanium dioxide, and the outermost layer is covered with a layer of aluminum foil. The high-temperature and energy-saving xonotlite composite thermal insulation board produced by the method of the invention has the characteristics of high strength, high temperature resistance, good thermal insulation performance and low cost.

Description

technical field [0001] The invention relates to a method for manufacturing a xonotlite composite thermal insulation board as an energy-saving thermal insulation material for industrial buildings. Background technique [0002] The thermal insulation materials used in the cement industry are mainly xonotlite type calcium silicate thermal insulation boards, and their density is generally 170~270kg / m 3 , the compressive strength is generally below 1.0MPa, the maximum service temperature is generally 1000°C, not exceeding 1050°C, and the current market price is 1200~1500 yuan / m 3 . [0003] A small amount of ordinary aluminum silicate fiberboard is used as thermal insulation materials in the cement industry, and its density is generally 200~300kg / m 3 , the compressive strength is generally below 0.5MPa, and the maximum service temperature is divided into 900°C and 1000°C according to the composition. Their functions and prices are equivalent to those of calcium silicate insulat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L59/05
CPCB32B9/002B32B9/041B32B15/20B32B2255/20B32B2307/304B32B2307/306B32B2419/00F16L59/028F16L59/029
Inventor 孙祥云李伟国于祥旭周春岩
Owner 莱州明发隔热材料有限公司
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