Manufacturing method of high-temperature energy-saving type xonotlite composite heat insulation plate

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

Inactive Publication Date: 2014-07-30
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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  • Manufacturing method of high-temperature energy-saving type xonotlite composite heat insulation plate
  • Manufacturing method of high-temperature energy-saving type xonotlite composite heat insulation plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[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. The weight ratio that zirconium silicate powder accounts for the mixture of water glass and water is 20%, 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 30 g / 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 75 mm thick xonotlite thermal insulation board, evenly spray a layer of silica sol, and stick a layer of 15 mm thick special aluminum silicate thermal insulation board with an equal area, special silicic acid Aluminum insulation panels have a density of 485 kg / m 3 , the compressive strength is 1.3 MPa, and the heat-resistant temperature is 1100°C. The compressive strength of the xonotlite thermal insulation board used is ≥0.7 MPa.

[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 120 g / m2 as dry powder 2 .

[0037] (4) Put the complex in step (3) into an aluminum foil bag, s...

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Abstract

The invention provides a manufacturing method of a high-temperature energy-saving type xonotlite composite heat insulation plate. According to the method, a xonotlite heat insulation plate is used as a base plate, a layer of high-temperature heat insulation plate with the heat resistance temperature being 1100 DEG C is pasted on the heat surface of the base plate, then, a layer of zirconium silicate powder or / and titanium dioxide powder is sprayed and coated on the outer surface of the high-temperature heat insulation plate, and a layer of aluminum foil is coated at the outmost side. The high-temperature energy-saving type xonotlite composite heat insulation plate produced by adopting the method has the characteristics that the strength is high, the heat-resistance temperature is high, the heat insulation performance is good, and the cost is lower.

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 170~270 kg / m 3 , the compressive strength is generally below 1.0 MPa, 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 200~300 kg / m 3 , the compressive strength is generally below 0.5 MPa, 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 ins...

Claims

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Application Information

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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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