Supporting brick for glass kiln

A glass kiln and brick support technology, applied in glass furnace equipment, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of chemical composition erosion and poor wear performance, output quality, poor economic benefits of enterprises, and poor glass erosion resistance and other problems, to achieve the effect of improving service life, porosity, erosion and wear

Inactive Publication Date: 2014-08-20
浙江立鑫高温耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing supporting brick products for glass kiln have poor resistance to rapid changes in high temperature, erosion and wear of chemical components in the glass liquid. Wh

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Supporting bricks for glass furnaces, including the following raw materials by mass percentage: 52% tabular corundum, α-Al 2 o 3 Micropowder 20%, zircon 6%, mullite 15%, aluminum dihydrogen phosphate 4%, clay 1%, zirconium dioxide 2%, the total amount of the above raw materials is 100%; The preparation method is as follows: Step 1. Mix platy corundum, mullite, zircon, and aluminum dihydrogen phosphate in a sand mixer for 8 to 10 minutes according to the mass ratio, and then add other raw materials and water according to the mass ratio. After kneading for 10 to 15 minutes, the mixture is obtained; step 2, put the supporting brick mold for glass kiln in the vacuum box, reduce the pressure to 140-120Pa, inject the mixed material into the supporting brick mold for glass kiln, and use high-tonnage The brick press presses the mixture in the glass kiln with the brick mold to obtain a high-density semi-finished product; step 3, dry the semi-finished product and put it in a tun...

Embodiment 2

[0014] The following raw materials are included by mass percentage: 60% tabular corundum, α-Al 2 o 3 Micropowder 15%, zircon 5%, mullite 10%, aluminum dihydrogen phosphate 5%, clay 3%, zirconia 2%.

Embodiment 3

[0016] The following raw materials are included by mass percentage: 50% tabular corundum, α-Al 2 o 3 Micropowder 20%, zircon 6%, mullite 15%, aluminum dihydrogen phosphate 2%, clay 4%, zirconia 3%. .

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Abstract

The present invention provides a supporting brick for a glass kiln, wherein the raw materials comprise, by mass, 50-60% of tabular corundum, 10-20% of alpha-Al2O3 micro-powder, 5-6% of zirconite, 10-15% of mullite, 2-5% of aluminium dihydrogen phosphate, 1-4% of clay, and 2-3% of zirconium dioxide. The supporting brick preparation method comprises: mixing tabular corundum, mullite, zirconite and aluminium dihydrogen phosphate, adding other raw materials and water, carrying out high speed mixing to obtain a mixed material, reducing the pressure in a vacuum box to achieve 140-120 Pa, pressing to obtain a high-density semi-finished product, drying and sintering the semi-finished product, and discharging out from the kiln. According to the present invention, high temperature rapid transformation resistance and chemical component corrosion and wear resistance in a glass liquid are substantially increased, the use age is significantly prolonged, the bubble exhaust time of the glass product is reduced, and the glass corrosion resistance time is prolonged.

Description

technical field [0001] The invention relates to a supporting brick for a glass kiln. Background technique [0002] The existing supporting brick products for glass kiln have poor resistance to rapid changes in high temperature, corrosion and wear of chemical components in the glass liquid. When the product is in use, it takes a long time to defoam the glass products and has relatively low corrosion resistance to the glass. Poor output quality and poor economic benefits of the enterprise. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a supporting brick for a glass kiln. By using plate-shaped corundum, zircon, and mullite, and adopting a high-vacuum casting method, the product can withstand high-temperature rapid changes and resist chemical changes in glass liquid. The erosion and wear of the ingredients have been greatly improved, so that the volume density and porosity of the product have been greatly improved...

Claims

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Application Information

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IPC IPC(8): C04B35/66C03B5/43
Inventor 高寿林
Owner 浙江立鑫高温耐火材料有限公司
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