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Method for manufacturing microlite by using high-silicon iron tailings

A technology of iron tailings and microcrystalline, which is applied in the field of microcrystalline, can solve the problems of unusable iron tailings, high melting temperature, and high raw material cost, and achieve the goals of reducing energy consumption, increasing melting speed, and reducing production costs Effect

Inactive Publication Date: 2010-09-01
BEIJING QING MAI HUA QING HLDG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a method for producing low-expansion microcrystalline stone by using iron tailings to solve the problems that iron tailings cannot be used in the existing microcrystalline production method, the cost of raw materials is high, and the melting temperature is high

Method used

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  • Method for manufacturing microlite by using high-silicon iron tailings

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Effect test

Embodiment 1

[0016] The glass batch is made by weighing and mixing. The composition (weight) of the glass batch is: 70 parts of iron tailings, 15 parts of quartz, 6 parts of limestone, 3.5 parts of alumina, 9.5 parts of soda ash, 4 parts of zinc oxide, carbonic acid Barium 3 parts. The color of the product is black.

[0017] 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 4 hours. After the melting is completed, the glass liquid is directly flowed 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 1070° C. Thus, a black microcrystalline stone sample of 120×120×18 mm can be obtained.

Embodiment 2

[0019] The glass batch is made by weighing and mixing. The composition (weight) of the glass batch is: 70 parts of iron tailings, 20 parts of quartz, 1 part of limestone, 1.5 parts of alumina, 9.5 parts of soda ash, 4 parts of zinc oxide, carbonic acid Barium 3 parts. The color of the product is black.

[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 1450°C for 4 hours. After the melting is completed, the glass liquid is directly flowed 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. Thus, a black microcrystalline stone sample of 120×120×18 mm can be obtained.

Embodiment 3

[0022] The composition (weight) of the glass batch is: 40 parts of iron tailings, 32 parts of quartz, 17.7 parts of limestone, 6.5 parts of alumina, 8.5 parts of soda ash, 5 parts of zinc oxide, 6 parts of barium carbonate, 3 parts of borax, and 0.3 parts of copper oxide parts, 0.15 parts of carbon powder. The color of the product is red.

[0023] The above-mentioned glass batch materials were melted in a glass tank furnace with a temperature of 1480° C. for 4 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. Thus, a red microcrystalline stone product of 600×900×18 mm can be obtained.

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Abstract

The invention discloses a method for manufacturing microcrystalline glass plates by using iron tailings, which comprises the steps of adding 30 to 70 percents of iron tailings in a glass batch, wherein quartz sand, aluminum oxide, sodium carbonate, calcium carbonate and other raw materials can be partially replaced by the iron tailings; melting the glass batch for four hours in a crucible or an electric box furnace, wherein the melting temperature is 1480-1500 DEG; introducing the molten glass liquid into water directly to form glass particles after the melting process; laying the glass particles in a refractory mould to carry out crystallization heat treatment in a tunnel kiln, a shuttle kiln or an electric box furnace with the crystallization temperature to be 1020-1050 DEG. The invention utilizes castoff microcrystalline glass, thereby not only reducing the stockpiling amount of tailings and relieving the environmental pollution, but also improving the product performance. Meanwhile, the production cost is reduced. Thus, the method for manufacturing microcrystalline glass plates by using iron tailings has good social benefit and economic benefit.

Description

technical field [0001] The invention relates to a microcrystalline stone and a manufacturing method of the microcrystalline stone. Background technique [0002] Microlite is a polycrystalline material obtained by controlling the crystallization of glass. At present, microcrystalline stone has formed a special category of materials, with various varieties and different properties, and has a very wide range of uses. Microcrystalline stone is one of many varieties of glass ceramics. It is a new type of high-grade building decoration material with physical and chemical properties such as high strength, wear resistance, corrosion resistance, weathering resistance, non-absorbent, easy cleaning and maintenance, and no radioactive pollution. And the color is uniform, the luster is soft and crystal clear, the surface is compact and flawless and other excellent appearance characteristics. Therefore, the performance of microcrystalline stone is superior to that of natural stone in al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00C03B32/02
Inventor 黄西江
Owner BEIJING QING MAI HUA QING HLDG GRP CO LTD
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