Lightweight heat insulation foaming stone heat preservation plate and preparation method thereof

A technology of lightweight heat insulation and foam stone, which is applied in the field of heat insulation materials and its preparation, can solve the problems of affecting heat preservation effect and poor heat preservation effect, and achieves improved heat preservation effect, high mechanical strength, and improved heat insulation effect Effect

Inactive Publication Date: 2018-01-09
绵阳梨坪科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the insulation of high-temperature equipment (kiln) mainly uses lightweight insulation bricks. The inner layer has a high temperature and uses lightweight high-alumina bricks, and the outer layer uses lightweight clay bricks. Beca

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: The light-weight heat-insulating foam stone insulation board of the present invention comprises the following components, and the weight percentages of each component are respectively: albite 93.0%, water glass 1.0%, calcium carbonate 5.0%, carbon powder 1.0%.

[0016] The preparation method of the lightweight heat-insulating foam stone insulation board is as follows:

[0017] (1) Weigh according to the percentage by weight of albite, water glass, calcium carbonate and carbon powder, then the albite is crushed, pulverized, and ball milled to obtain a material with a particle size of ≤300; then the material is mixed with calcium carbonate and carbon powder are mixed to obtain a powdery material;

[0018] (2) Select the silicon carbide material to make the box sagger, apply a layer of clay anti-bonding layer on the inner surface of the sagger, put the powdery material that is ground and mixed evenly into the sagger and foam it in the tunnel kiln Sintering, the

Embodiment 2

[0020] Embodiment 2: The light-weight heat-insulating foam stone insulation board of the present invention comprises the following components, and the weight percentages of each component are respectively: anorthite 94.0%, water glass 2.0%, sodium carbonate 3.2%, carbon powder 0.8%.

[0021] Its preparation method is identical with embodiment 1.

Embodiment 3

[0022] Embodiment 3: The light-weight heat-insulating foam stone insulation board of the present invention comprises the following components, and the weight percentages of each component are: 90.0% potassium albite feldspar, 2.0% water glass, 6.0% calcium carbonate, and 2.0% Glauber's salt.

[0023] Its preparation method is identical with embodiment 1.

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PUM

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Abstract

The invention discloses a lightweight heat insulation foaming stone heat preservation plate and a preparation method thereof. The heat preservation plate is prepared from the following ingredients inpercentage by weight: 90 to 97 percent of feldspar, 1 to 2 percent of water glass, 2 to 8 percent of mineralizing agents and 0.4 to 2 percent of foaming agents. The preparation method of the heat preservation plate is characterized in that firstly, materials are mixed and are subjected to fine grinding; then, a silicon carbide material is used for manufacturing box body saggar; a clay anti-cohesion layer is coated at the inner surface of the saggar; the mixed materials are put into the saggar and are subjected to foaming sintering in a tunnel kiln; the sintering foaming temperature is 1200 to1250 DEG C; after slow cooling, large-block-shaped foaming stone is obtained; then, the stone is cut and processed into various block shapes. The volume density is smaller than that of a lightweight heat preservation brick; the mechanical strength is higher than that of the lightweight heat preservation brick; the heat insulation and heat preservation performance is superior to that of the lightweight heat preservation brick; the use temperature is higher than that of foam glass and foam ceramics; the heat preservation plate can be used for outer layer heat preservation of high-temperature equipment such as high-temperature kilns; the heat insulation and heat preservation effects can be obviously improved.

Description

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Claims

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Application Information

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Owner 绵阳梨坪科技有限公司
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