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Method for preparing glass from quartz sand dust collected in dust hopper

A quartz sand and ash hopper technology, used in coatings, polyether coatings, etc., can solve the problems of no recycling and secondary dust pollution, and achieve the effects of good dissolution, long contact time and large contact area.

Active Publication Date: 2018-03-23
XINYI JINGRUN QUARTZ MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the hazards of quartz sand dust generated in the production process, measures such as local exhaust, airtight ventilation, and water shower dust removal are usually taken to reduce the dust concentration in the workplace, and the quartz sand dust collected by dust removal equipment is mostly treated as industrial waste. Disposal does not achieve effective recycling, and it is easy to cause secondary dust pollution

Method used

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  • Method for preparing glass from quartz sand dust collected in dust hopper
  • Method for preparing glass from quartz sand dust collected in dust hopper
  • Method for preparing glass from quartz sand dust collected in dust hopper

Examples

Experimental program
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Effect test

Embodiment 1

[0028] (1) The quartz sand dust is collected by the filter dust collector and collected in the inverted conical ash hopper. The ash hopper can be separated from the main box of the filter dust collector. There is a storage box and an inlet outside the upper opening of the ash hopper The feed pipe is surrounded by the inner wall side of the upper opening of the ash hopper along the wall, and 40 small nozzles are arranged along the inner wall of the ash hopper, and a discharge valve is arranged at the bottom of the ash hopper; the inner side of the ash hopper is coated with a composite film, The composite emulsion forming the composite film is composed of 42wt% polyethylene glycol, 42wt% polyacrylamide, 8wt% methyl silicone oil, and 8wt% micron-sized silica gel microspheres in mass fraction;

[0029] (2) The preparation contains the first mixed solution that the mass fraction of hydrogen fluoride is 8wt%, the mass fraction of hydrogen chloride is 12wt%, the mass fraction of ethan...

Embodiment 2

[0035] The filter dust collector used in step (1) in Example 1 is replaced by a wet dust collector, wherein the ash hopper of the wet dust collector is the same as that of Example 1, and the rest of the preparation method is also the same as that of Example 1.

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Abstract

The invention discloses a method for preparing glass from quartz sand dust collected in a dust hopper. The method mainly comprises steps as follows: collection of the quartz sand dust, injection of afirst mixed liquid containing hydrogen fluoride, dissolving of the quartz sand dust, emission of a second mixed liquid, preparation of glass phase sol, sintering and the like, wherein the inner wall of the dust hopper for collecting the quartz sand dust is coated with composite emulsion prepared from polyethylene glycol, polyacrylamide, methyl silicone oil and micron-sized silica gel microspheres,so that not only can the quartz sand dust be effectively adsorbed, but also dissolving of the quartz sand dust by the first mixed liquid can be promoted. Utilization of the quartz sand dust is realized with the simple method, secondary dust pollution is avoided, and utilization efficiency of the quartz sand ore resources is improved.

Description

technical field [0001] The invention relates to the recovery of quartz sand dust, in particular to a method for preparing glass by utilizing the quartz sand dust collected in an ash hopper. Background technique [0002] The unique physical and chemical properties of quartz sand make it occupy a pivotal position in aviation, aerospace, electronics, machinery and today's rapidly developing IT industry. At the same time, quartz sand is also an important industrial mineral raw material. Dangerous chemicals are widely used in traditional industries such as glass, casting, ceramics and refractories, smelting, construction, chemicals, and rubber. At present, there are dry processing technology and wet processing technology in the production of quartz sand, both of which include crushing, crushing (grinding), screening, packaging and other processes of quartz ore. Floating in the space of the workplace, it will seriously pollute the working environment and damage the health of the ...

Claims

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Application Information

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IPC IPC(8): C03C1/02C09D171/02C09D133/26C09D183/04C09D7/61C03B8/02
CPCC03C1/002C03C1/022C08L2205/03C09D133/26C09D171/02C08L33/26C08L83/04C08K7/18C08L71/02
Inventor 沈德富沈长青
Owner XINYI JINGRUN QUARTZ MATERIAL