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Method utilizing waste gypsum slag to manufacture green microcrystalline glass plate material

A technology of glass-ceramic and waste gypsum, which is applied in the direction of solid waste removal, etc., can solve the problems of aggravating the erosion of molten glass on refractory materials of furnaces, aggravating the erosion of molten glass on refractory materials of furnaces, and high melting temperature of glass, so as to improve the melting temperature. kiln efficiency, reduced energy consumption and increased melting speed

Inactive Publication Date: 2010-07-07
陕西乾盛环保建材工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this kind of glass batch material are: high cost of raw materials; high melting temperature of glass, generally between 1500-1550 °C, which will inevitably increase fuel consumption, and high temperature will also aggravate the erosion of glass liquid on refractory materials of kiln; There are many chemical raw materials in the batch material, which also increases the erosion of the glass liquid on the refractory material of the furnace

Method used

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  • Method utilizing waste gypsum slag to manufacture green microcrystalline glass plate material
  • Method utilizing waste gypsum slag to manufacture green microcrystalline glass plate material
  • Method utilizing waste gypsum slag to manufacture green microcrystalline glass plate material

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Effect test

Embodiment 1

[0019] The glass batch is made by weighing and mixing. The composition of the glass batch is calculated by weight: 60 parts of waste gypsum slag, 26 parts of quartz sand, 15 parts of lithium feldspar, 4 parts of soda ash, 2 parts of zinc oxide, barium carbonate 4 parts, 2 parts of chromium oxide, 0.2 parts of copper oxide, 0.04 parts of carbon powder.

[0020] Put the above-mentioned glass batch material in a mullite crucible and melt it in a box-type electric furnace at a temperature of 1480°C for 3 hours. After the melting is completed, pour the glass liquid into water to become glass pellets. 700 grams of glass granules were spread flat in a refractory mold with a size of 120×120 mm, and crystallized in a box-type electric furnace at a crystallization temperature of 1020° C. Green glass-ceramic plates with a size of 120×120×18 mm can be obtained after grinding and cutting the crude green glass-ceramics.

Embodiment 2

[0022] The glass batch is made by weighing and mixing. The composition of the glass batch is calculated by weight: 50 parts of waste gypsum slag, 33 parts of quartz sand, 15 parts of lithium feldspar, 3 parts of soda ash, 3 parts of zinc oxide, barium carbonate 4 parts, chromium oxide 2.2 parts, copper oxide 0.06 parts, carbon powder 0.1 parts.

[0023] The above-mentioned glass batch materials were melted in a glass tank furnace with a temperature of 1480° C. for 3 hours, and after the melting was completed, the molten glass was directly poured into water to become glass pellets. 26 kg of glass granules were spread flat in a refractory mold with a size of 6000×9000 mm and crystallized in a shuttle kiln fueled by liquefied petroleum gas, with a crystallization temperature of 1060°C. Green glass-ceramic plates of 600×900×18 mm can be obtained after grinding and cutting the crude green glass-ceramics.

Embodiment 3

[0025] The glass batch is made by weighing and mixing. The composition of the glass batch is calculated in parts by weight: 40 parts of waste gypsum slag, 38 parts of quartz sand, 24 parts of lithium feldspar, 7 parts of limestone, 2 parts of soda ash, 2 parts of zinc oxide parts, 4 parts of barium carbonate, 2.5 parts of chromium oxide, and 0.2 parts of carbon powder.

[0026] The above-mentioned glass batch materials were melted in a glass tank kiln at a temperature of 1480° C. for 3 hours, and after the melting was completed, the molten glass was directly flowed into water to become glass pellets. Spread 26 kg of glass pellets in a refractory mold with a size of 6000×9000 mm and crystallize in a shuttle kiln fueled by liquefied petroleum gas at a crystallization temperature of 1050°C. Green glass-ceramic plates of 600×900×18 mm can be obtained after grinding and cutting the crude green glass-ceramics.

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Abstract

The invention discloses a method utilizing waste gypsum slag to manufacture a green microcrystalline glass plate material. The method includes the following steps: the waste gypsum slag, quartz sand, petalite, soda ash, zinc oxide, barium carbonate, chromic oxide, copper oxide and carbon powder are mixed together according to certain parts by weight to prepare a glass batch mixture; the glass batch mixture is molten into liquid glass; the liquid glass is poured into water to obtain glass particles; the glass particles are laid in a fireproof mould to carry out crystallization heat treatment; finally, the rough green microcrystalline glass is ground and cut after the crystallization heat treatment so as to obtain the finished glass. The method in the invention utilizes the waste gypsum slag to manufacture the green microcrystalline glass plate material, which not only reduces the stacking quantity of industrial waste slag and lessens environmental pollution, but also improves the product performance and reduces the production cost. Therefore, the method in the invention has good social and economic benefits.

Description

technical field [0001] The invention relates to a method for manufacturing a glass-ceramic plate, in particular to a method for manufacturing a green glass-ceramic plate with waste gypsum slag. Background technique [0002] Glass-ceramic is a polycrystalline material obtained by controlling the crystallization of glass. At present, glass-ceramics has formed a special category of materials, with various varieties and different properties, and has a very wide range of uses. Glass-ceramic plate is one of many varieties of glass-ceramics. It is a new type of high-grade building decoration material with high strength, wear resistance, corrosion resistance, weathering resistance, non-absorbent, easy cleaning and maintenance, and no radioactive pollution. Features and uniform color tone, soft and crystal-clear luster, dense and flawless surface and other excellent appearance characteristics. Because the properties of the glass-ceramic plate are superior to natural stone in all as...

Claims

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Application Information

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IPC IPC(8): C03C10/00B09B3/00
Inventor 张风海
Owner 陕西乾盛环保建材工程有限公司
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