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Processing method of glass fiber waste silk powder

A glass fiber and processing method technology, which is applied in the processing field of glass fiber waste silk powder, can solve the problems of low efficiency of fiber silk powder, limiting the usage of glass fiber waste silk, clogging of dust collection system, etc. Large-scale processing, beneficial to production management, and the effect of increasing the intensity of recycling

Active Publication Date: 2020-12-18
山东硕远新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Put the scrap glass fiber directly into the kiln, and return to the kiln to melt glass, but this method requires employees to stand at the furnace feeding port at high temperature and use iron rods to smash the glass fiber into the kiln;
[0005] (2) The waste glass fiber is directly ground into powder, and the homogenized glass powder is mixed with other glass raw materials according to the formula ratio to form a batch, which is put into the furnace to melt glass, but because the surface of the glass fiber is covered with infiltration The powder forming efficiency is not high during the fine fiber grinding process, and the fine glass filaments will enter the dust collection system and cause system blockage
[0006] The above methods limit the amount of glass fiber waste used, and the resulting glass fiber waste will pile up like a mountain because of slow consumption

Method used

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  • Processing method of glass fiber waste silk powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Stir the Portland cement according to 25% of the water consumption, form a cement slurry after fully stirring and let it stand for 5 hours, then take its supernatant;

[0036] (2) Soak glass fiber waste silk in a mixed solution composed of NaOH solution and cement slurry supernatant for 13 hours. The mass concentration of NaOH in the mixed solution is 4%, and the soaking temperature is 70°C. After being washed with tap water, it is crushed. The broken glass fiber waste is 2 cm, and it is dried in a drying furnace at 400 °C;

[0037] (3) The dried glass fiber waste enters the pre-mill bin, enters the mill through a continuous feeder, and the ground powder enters the sieving machine, and the qualified powder enters the glass powder homogenization silo , It is required that the particle size of the sieved powder can pass through a 100 mesh sieve.

[0038] figure 1 It can be seen that the surface of glass fiber waste silk is smooth before treatment, and microcracks ap...

Embodiment 2

[0040] (1) Stir the slag portland cement according to 22% of the water consumption, form a cement slurry after fully stirring, let it stand for 3 hours, and take its supernatant;

[0041] (2) Soak glass fiber waste in Ca(OH) 2 Solution and cement slurry supernatant were soaked in the mixed solution for 2h, the Ca(OH) in the mixed solution 2 The mass concentration is 1%, the soaking temperature is 30°C, the soaked glass fiber is washed with tap water and crushed, the broken glass fiber waste is 1cm, and it is dried in a drying furnace at 120°C;

[0042] (3) The dried glass fiber waste enters the pre-mill bin, enters the mill through a continuous feeder, and the ground powder enters the sieving machine, and the qualified powder enters the glass powder homogenization silo , It is required that the particle size of the sieved powder can pass through a 100 mesh sieve.

Embodiment 3

[0044] (1) Stir the composite Portland cement according to 28% of the water consumption, form the cement slurry after fully stirring, let it stand for 12 hours, and take its supernatant;

[0045] (2) Soak glass fiber waste silk in a mixed solution composed of KOH solution and cement slurry supernatant for 24 hours. The mass concentration of NaOH in the mixed solution is 15%, and the soaking temperature is 150°C. After being washed with tap water, it is crushed, and the broken glass fiber waste is 3 cm, and it is dried in a drying furnace at 650 °C;

[0046] (3) The dried glass fiber waste enters the pre-mill bin, enters the mill through a continuous feeder, and the ground powder enters the sieving machine, and the qualified powder enters the glass powder homogenization silo , It is required that the particle size of the sieved powder can pass through a 100 mesh sieve.

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Abstract

The invention belongs to the technical field of glass fiber recycling, and in particular relates to a processing method of glass fiber waste silk powder. Firstly, the glass fiber waste silk is soaked in a mixture of alkali and cement slurry supernatant, and after soaking, it is taken out, rinsed and crushed. , drying and grinding to obtain glass fiber waste silk powder. The invention can remove the sizing agent on the surface of the glass fiber waste, increase the microcracks on the glass fiber surface, reduce the strength of the glass fiber, increase the brittleness of the glass fiber, and improve the grinding effect when the glass fiber waste is processed into powder; The invention can efficiently grind glass fiber waste into powder, and the composition of the powder is uniform and stable. When it is mixed with other glass raw materials to form a batch, it can be fed with a reamer, which saves time and effort, and makes the waste glass The reuse becomes efficient; the present invention increases the recycling treatment of glass fiber waste in the glass fiber industry, avoids the backlog of waste materials, and has low purchase costs in the cement and lye market, and is easy to process in large quantities.

Description

technical field [0001] The invention belongs to the technical field of glass fiber recovery, and in particular relates to a processing method of glass fiber waste silk powder. Background technique [0002] In the glass fiber production industry, a certain amount of unqualified glass fiber waste (waste) will be produced during normal production and operation, and the treatment of these glass fiber waste needs to consume a certain amount of manpower and material resources. In order to achieve the goal of zero waste in the glass fiber production industry and reduce production costs, it is necessary to reuse the scrapped glass fiber waste. [0003] At present, there are two ways to deal with glass fiber waste: [0004] (1) Put the scrap glass fiber directly into the kiln, and return to the kiln to melt glass, but this method requires employees to stand at the furnace feeding port at high temperature and use iron rods to smash the glass fiber into the kiln; [0005] (2) The was...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C25/70C03C25/66C03C1/02B09B3/00
CPCB09B3/00C03C1/002C03C1/024C03C25/005C03C25/66C03C25/70
Inventor 孙云栋刘彩华王永顺丁聪牛浩刘永涛刘国栋
Owner 山东硕远新材料有限公司
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