Solid asbestos crystal material and preparation method thereof

A crystal material and asbestos technology, applied in the field of solid asbestos crystal material and its preparation, can solve the problems of human and animal health hazards, geological hazards, etc., and achieve the effects of reducing production costs, solving land occupation, and improving thermal performance.

Inactive Publication Date: 2019-04-26
黄小琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a solid asbestos crystal material to solve the problems of human and animal health hazards and potential geological hazards caused by the accumulation and discharge of asbestos tailings in the prior art

Method used

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  • Solid asbestos crystal material and preparation method thereof
  • Solid asbestos crystal material and preparation method thereof

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Embodiment 1

[0038] 1. Solid asbestos crystal material

[0039] The above-mentioned solid asbestos crystal material includes the following raw materials in parts by weight:

[0040] 60 parts of asbestos tailings, 15 parts of quartz sand, 20 parts of limestone, 2 parts of calcium fluoride, 1 part of aluminum oxide and 0.3 parts of diboron trioxide.

[0041] 2. Preparation method

[0042] The preparation method of above-mentioned solid asbestos crystal material, comprises the steps:

[0043] (a) crushing the asbestos tailings to 0.05-0.15mm, and then mixing the crushed asbestos tailings with quartz sand, limestone, calcium fluoride, aluminum oxide and boron trioxide to obtain a mixture;

[0044] (b) Use plasma torch heating to heat the mixture to 1400°C at 20°C / min and keep it warm for 2 hours; then place the mixture at 800°C and keep it warm for 1 hour; then, heat it up to 1000°C at 10°C / min and keep it warm 2h;

[0045] (c) Putting the mixture into a mold for casting, adopting a normal...

Embodiment 2

[0047] 1. Solid asbestos crystal material

[0048] The above-mentioned solid asbestos crystal material includes the following raw materials in parts by weight:

[0049] 65 parts of asbestos tailings, 10 parts of quartz sand, 25 parts of limestone, 1 part of calcium fluoride, 2.5 parts of aluminum oxide and 0.5 parts of diboron trioxide.

[0050] 2. Preparation method

[0051] The preparation method of above-mentioned solid asbestos crystal material, comprises the steps:

[0052] (a) crushing the asbestos tailings to 0.05-0.15mm, and then mixing the crushed asbestos tailings with quartz sand, limestone, calcium fluoride, aluminum oxide and boron trioxide to obtain a mixture;

[0053] (b) Use plasma torch heating to heat the mixture to 1600°C at 30°C / min and keep it warm for 3h; put the mixture at 700°C and keep it warm for 2h; then, heat it up to 1100°C at 15°C / min and keep it warm 1h;

[0054](c) Putting the mixture into a mold for casting, adopting a normal temperature ai...

Embodiment 3

[0056] 1. Solid asbestos crystal material

[0057] The above-mentioned solid asbestos crystal material includes the following raw materials in parts by weight:

[0058] 62 parts of asbestos tailings, 13 parts of quartz sand, 22 parts of limestone, 1.5 parts of calcium fluoride, 2 parts of aluminum oxide and 0.4 parts of diboron trioxide.

[0059] 2. Preparation method

[0060] The preparation method of above-mentioned solid asbestos crystal material, comprises the steps:

[0061] (a) crushing the asbestos tailings to 0.05-0.15mm, and then mixing the crushed asbestos tailings with quartz sand, limestone, calcium fluoride, aluminum oxide and boron trioxide to obtain a mixture;

[0062] (b) Using plasma torch heating, the mixture is heated to 1500°C at 25°C / min and kept for 2.5h; then the mixture is placed at 750°C and kept for 1.5h; then, the temperature is raised to 1050°C at 12°C / min , keep warm for 1.5h;

[0063] (c) Putting the mixture into a mold for casting, adopting a...

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Abstract

The embodiment of the invention discloses a solid asbestos crystal material and a preparation method thereof. The solid asbestos crystal material comprises the following raw materials in part by weight: 60-65 parts of asbestos tailings, 10-15 parts of quartz sand, 20-25 parts of limestone, 1-2 parts of nucleating agent, 1-2.5 parts of regulator and 0.3-0.5 part of co-solvent. The solid asbestos crystal material disclosed by the invention has excellent thermal performance; by selecting the asbestos tailings as making raw materials, the thermal performance of the prepared asbestos crystal material can be improved; in addition, the manufacturing cost is also reduced, and the problems that the land area is occupied by asbestos tailing accumulation, and health hazards and potential geological hazards are caused to humans and animals are solved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of energy storage materials, in particular to a solid asbestos crystal material and a preparation method thereof. Background technique [0002] Asbestos tailings refer to the mineral residues produced during the beneficiation process of asbestos mines. It is a dangerous solid waste with serpentine as the main component, and its chemical composition is mainly SiO 2 , MgO and a small amount of iron, aluminum, calcium and other substances. China currently produces more than 340,000 tons of asbestos annually, and 8.16-9.18 million tons of asbestos tailings. Asbestos tailings are mainly discharged in the form of accumulation. Because it contains a large amount of serpentine fibers, a large amount of accumulation has caused serious harm to the health of people and animals around the mining area. In rainy areas, the massive accumulation of asbestos tailings is a potential geological haza...

Claims

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Application Information

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IPC IPC(8): C04B33/132C04B33/32
CPCC04B33/132C04B33/32C04B2235/3208C04B2235/3217C04B2235/3409C04B2235/3418C04B2235/445C04B2235/77C04B2235/9607Y02P40/60
Inventor 黄小琳
Owner 黄小琳
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