CN110590188A - Processing method of waste glass fiber powder - Google Patents
Processing method of waste glass fiber powder Download PDFInfo
- Publication number
- CN110590188A CN110590188A CN201910807702.3A CN201910807702A CN110590188A CN 110590188 A CN110590188 A CN 110590188A CN 201910807702 A CN201910807702 A CN 201910807702A CN 110590188 A CN110590188 A CN 110590188A
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- CN
- China
- Prior art keywords
- glass fiber
- waste
- cement
- powder
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/02—Pretreated ingredients
- C03C1/024—Chemical treatment of cullet or glass fibres
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/005—Surface treatment of fibres or filaments made from glass, minerals or slags by mechanical means
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/66—Chemical treatment, e.g. leaching, acid or alkali treatment
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/70—Cleaning, e.g. for reuse
Abstract
The invention belongs to the technical field of glass fiber recovery, and particularly relates to a processing method of glass fiber waste silk powder. The invention can remove the impregnating compound on the surface of the waste glass fiber, simultaneously increase the microcracks on the surface of the glass fiber, reduce the strength of the glass fiber, increase the brittleness of the glass fiber and improve the grinding effect when the waste glass fiber is processed into powder; the invention can efficiently grind the glass fiber waste filaments into powder, the components of the powder are uniform and stable, and the powder can be fed by using the reamer when being mixed with other glass raw materials into batch materials for feeding into a kiln, thereby saving time and labor and enabling the recycling of the waste glass filaments to be efficient; the invention increases the recycling treatment strength of the glass fiber waste silk in the glass fiber industry, avoids the overstocking of waste materials, has low purchase cost of cement and alkali liquor in the market, and is easy to treat in large batch.
Description
Technical Field
The invention belongs to the technical field of glass fiber recovery, and particularly relates to a processing method of glass fiber waste silk powder.
Background
In the glass fiber production industry, a certain amount of unqualified and test scrapped glass fiber waste filaments (waste materials) are generated in normal production operation, and certain manpower and material resources are consumed for the treatment of the glass fiber waste filaments. In order to realize the purpose of zero garbage and production cost reduction in the glass fiber production industry, the scrapped glass fiber waste silk needs to be reused.
At present, two methods for treating the waste glass fiber are available:
(1) directly putting the waste glass fiber into a kiln, and returning the waste glass fiber to the kiln to melt the glass, but in the method, staff are required to stand at a feeding port of the kiln by high temperature and smash the glass fiber into the kiln by using an iron rod;
(2) the waste glass fiber is directly ground into powder, the homogenized glass powder and other glass raw materials are mixed into a batch according to a formula ratio, and the batch is put into a kiln to melt glass.
The method limits the use amount of the glass fiber waste silk, and the generated glass fiber waste silk can be accumulated like a mountain due to slow consumption.
Disclosure of Invention
The invention provides a processing method of glass fiber waste silk powder, which solves the technical problems of removing a wetting agent on the surface of the glass fiber waste silk, reducing the strength of the glass fiber waste silk and increasing the brittleness of the glass fiber waste silk, thereby improving the grinding effect when the glass fiber waste silk is processed into the powder.
The processing method of the waste glass fiber powder comprises the steps of firstly, soaking the waste glass fiber in a treating fluid, taking out the soaked waste glass fiber for washing, crushing, drying and grinding to obtain the waste glass fiber powder;
the treatment fluid is a mixed solution of an alkali solution and a cement slurry supernatant;
the cement paste supernatant is prepared by the following method:
mixing cement and water, stirring to form cement slurry, standing and taking supernatant.
The mass concentration of alkali in the mixed solution of the alkali solution and the cement paste supernatant is 1-15%.
The alkaline solution is NaOH solution, Ca (OH)2Solution, KOH solution.
The time of soaking the waste glass fiber filaments in the treatment solution is 2-72h, and the temperature of soaking in the treatment solution is 30-150 ℃.
The standing time of the cement paste is 3-12 h.
The drying is carried out in a drying furnace, and the drying temperature is 120-650 ℃.
Grinding is carried out in a ball mill, and the length of the broken glass fiber waste silk is 1-3 cm.
And (3) screening the ground powder in a screening machine, wherein the granularity of the screened powder can pass through a 100-mesh sieve.
The cement is one or more of portland cement, ordinary portland cement, portland slag cement, pozzolanic portland cement, portland fly ash cement and composite portland cement.
As a preferred technical scheme, the processing method of the glass fiber waste silk powder comprises the following steps:
(1) stirring cement according to the water consumption of 22-28%, fully stirring to form cement paste, standing for 3-12h, and taking supernatant;
(2) soaking the glass fiber waste filaments in a mixed solution composed of an alkali solution and a cement slurry supernatant for 2-72h, wherein the mass concentration of alkali in the mixed solution is 1-15%, the soaking temperature is 30-150 ℃, the soaked glass fibers are crushed after being washed by tap water, the crushed glass fiber waste filaments are 1-3cm, and the crushed glass fiber waste filaments enter a drying furnace for drying at the temperature of 120 ℃ and 650 ℃;
(3) and feeding the dried waste glass fiber into a pre-grinding bin, feeding the waste glass fiber into a grinder through a continuous feeder, feeding the ground powder into a screening machine, feeding the powder with qualified granularity into a glass powder homogenizing bin, and sieving the powder with a 100-mesh sieve.
The principle of the invention is as follows:
(1) the impregnating compound coated on the surface of the glass fiber can be washed off under the alkaline condition of the treatment fluid, the loss of the impregnating compound can reduce the flexibility of the glass fiber, and the glass substrate is exposed;
(2) in the alkaline environment of NaOH, the glass fiber can react as follows, 2NaOH + SiO2→Na2SiO3+H2O, alkali and the main component silicon dioxide of the glass can generate chemical reaction to generate insoluble silicate and water, so that the strength of the glass fiber is reduced;
(3) the alkaline slurry solution formed after the cement hydration has complex components and can generate mixed alkali effect when being mixed with other alkaline solutions, the chemical corrosion effect of the single alkaline solution on the glass fiber is enhanced, the bearing capacity of the glass fiber is reduced, the microcrack on the surface of the glass fiber is increased, and the glass fiber is embrittled.
Compared with the prior art, the invention has the following beneficial effects.
(1) The invention can remove the wetting agent on the surface of the waste glass fiber, reduce the strength of the glass fiber and increase the brittleness of the glass fiber so as to improve the grinding effect when the waste glass fiber is processed into powder;
(2) the invention can efficiently grind the glass fiber waste filaments into powder, the components of the powder after being ground are uniform and stable, and the powder can be fed by using a reamer when being mixed with other glass raw materials into batch materials for putting into a kiln, thereby saving time and labor and enabling the recycling of the waste glass filaments to be efficient;
(3) the invention increases the recycling treatment strength of the glass fiber waste silk in the glass fiber industry, avoids the overstocking of waste materials, has low purchase cost of cement and alkali liquor in the market, is easier to treat in large batch, particularly does not need special management like other chemical substances in the production of cement, is convenient for field personnel to operate, and is beneficial to production management.
Drawings
In FIG. 1, a is a scanning electron microscope picture of the surface of the waste glass fiber before treatment; b is the scanning electron microscope picture of the surface of the waste glass fiber yarn soaked in the mixed solution in the embodiment 1.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
(1) Stirring the Portland cement according to the water consumption of 25%, fully stirring to form cement paste, standing for 5h, and taking supernatant fluid of the cement paste;
(2) soaking the waste glass fiber filaments in a mixed solution composed of a NaOH solution and a cement slurry supernatant for 13 hours, wherein the mass concentration of NaOH in the mixed solution is 4%, the soaking temperature is 70 ℃, the soaked glass fibers are washed by tap water and then crushed, the crushed waste glass fiber filaments are 2cm, and the crushed waste glass fiber filaments enter a drying furnace for drying at 400 ℃;
(3) and feeding the dried waste glass fiber into a pre-grinding bin, feeding the waste glass fiber into a grinder through a continuous feeder, feeding the ground powder into a screening machine, feeding the powder with qualified granularity into a glass powder homogenizing bin, and sieving the powder with a 100-mesh sieve.
As can be seen from FIG. 1, the surface of the glass fiber waste silk before treatment is smooth, and microcracks appear on the surface of the glass fiber after the treatment of soaking in a mixed solution consisting of a NaOH solution and a cement slurry supernatant, so that the brittleness of the glass fiber is increased, and the subsequent grinding is facilitated.
Example 2
(1) Stirring the slag portland cement according to the water consumption of 22%, fully stirring to form cement paste, standing for 3h, and taking supernatant fluid of the cement paste;
(2) soaking the waste glass fiber filaments in Ca (OH)2Mixed solution composed of solution and cement paste supernatantSoaking in the solution for 2h, wherein the mixed solution contains Ca (OH)2The mass concentration of the glass fiber is 1 percent, the soaking temperature is 30 ℃, the soaked glass fiber is washed by tap water and then crushed, the crushed waste glass fiber is 1cm, and the crushed waste glass fiber enters a drying furnace to be dried at 120 ℃;
(3) and feeding the dried waste glass fiber into a pre-grinding bin, feeding the waste glass fiber into a grinder through a continuous feeder, feeding the ground powder into a screening machine, feeding the powder with qualified granularity into a glass powder homogenizing bin, and sieving the powder with a 100-mesh sieve.
Example 3
(1) Stirring the composite portland cement according to the water consumption of 28%, fully stirring to form cement paste, standing for 12h, and taking supernatant fluid of the cement paste;
(2) soaking the waste glass fiber filaments in a mixed solution composed of a KOH solution and a cement paste supernatant for 24 hours, wherein the mass concentration of NaOH in the mixed solution is 15%, the soaking temperature is 150 ℃, the soaked glass fibers are washed by tap water and then crushed, the crushed waste glass fiber filaments are 3cm, and the crushed waste glass fiber filaments enter a drying furnace for drying at 650 ℃;
(3) and feeding the dried waste glass fiber into a pre-grinding bin, feeding the waste glass fiber into a grinder through a continuous feeder, feeding the ground powder into a screening machine, feeding the powder with qualified granularity into a glass powder homogenizing bin, and sieving the powder with a 100-mesh sieve.
Claims (10)
1. A processing method of glass fiber waste silk powder is characterized in that: firstly, placing the waste glass fiber filaments in a treatment solution for soaking treatment, taking out the soaked waste glass fiber filaments for washing, crushing, drying and grinding to obtain waste glass fiber filament powder;
the treatment fluid is a mixed solution of an alkali solution and a cement slurry supernatant;
the cement paste supernatant is prepared by the following method:
mixing cement and water, stirring to form cement slurry, standing and taking supernatant.
2. The method for processing the glass fiber waste silk powder according to claim 1, wherein: the mass concentration of alkali in the mixed solution of the alkali solution and the cement paste supernatant is 1-15%.
3. The method for processing the glass fiber waste silk powder according to claim 1 or 2, characterized in that: the alkaline solution is NaOH solution, Ca (OH)2Solution, KOH solution.
4. The method for processing the glass fiber waste silk powder according to claim 1, wherein: the time of soaking the waste glass fiber filaments in the treatment solution is 2-72h, and the temperature of soaking in the treatment solution is 30-150 ℃.
5. The method for processing the glass fiber waste silk powder according to claim 1, wherein: the standing time of the cement paste is 3-12 h.
6. The method for processing the glass fiber waste silk powder according to claim 1, wherein: the drying is carried out in a drying furnace, and the drying temperature is 120-650 ℃.
7. The method for processing the glass fiber waste silk powder according to claim 1, wherein: grinding is carried out in a ball mill, and the length of the broken glass fiber waste silk is 1-3 cm.
8. The method for processing a glass fiber waste silk powder according to claim 1 or 7, characterized in that: and (3) screening the ground powder in a screening machine, wherein the granularity of the screened powder can pass through a 100-mesh sieve.
9. The method for processing the glass fiber waste silk powder according to claim 1, wherein: the cement is one or more of portland cement, ordinary portland cement, portland slag cement, pozzolanic portland cement, portland fly ash cement and composite portland cement.
10. The method for processing a glass fiber waste silk powder according to any one of claims 1, 2, 4, 5, 6, 7 and 9, characterized in that: the method specifically comprises the following steps:
(1) stirring cement according to the water consumption of 22-28%, fully stirring to form cement paste, standing for 3-12h, and taking supernatant;
(2) soaking the glass fiber waste filaments in a mixed solution composed of an alkali solution and a cement slurry supernatant for 2-72h, wherein the mass concentration of alkali in the mixed solution is 1-15%, the soaking temperature is 30-150 ℃, the soaked glass fibers are crushed after being washed by tap water, the crushed glass fiber waste filaments are 1-3cm, and the crushed glass fiber waste filaments enter a drying furnace for drying at the temperature of 120 ℃ and 650 ℃;
(3) and feeding the dried waste glass fiber into a pre-grinding bin, feeding the waste glass fiber into a grinder through a continuous feeder, feeding the ground powder into a screening machine, feeding the powder with qualified granularity into a glass powder homogenizing bin, and sieving the powder with a 100-mesh sieve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910807702.3A CN110590188B (en) | 2019-08-29 | 2019-08-29 | Processing method of waste glass fiber powder |
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| CN201910807702.3A CN110590188B (en) | 2019-08-29 | 2019-08-29 | Processing method of waste glass fiber powder |
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| CN110590188B CN110590188B (en) | 2020-12-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192539A (en) * | 2021-12-03 | 2022-03-18 | 中国铝业股份有限公司 | Method for recycling aluminum electrolysis dust removal cloth bag, pretreatment solution and puffing device thereof |
| CN114453388A (en) * | 2022-01-27 | 2022-05-10 | 四川浩方汇通复合材料有限公司 | Glass fiber solid waste silk re-modification utilization treatment production line and treatment process |
| CN114904889A (en) * | 2022-05-24 | 2022-08-16 | 五河县维佳复合材料有限公司 | Method for preparing high-quality glass fiber powder by recycling glass fiber material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192539A (en) * | 2021-12-03 | 2022-03-18 | 中国铝业股份有限公司 | Method for recycling aluminum electrolysis dust removal cloth bag, pretreatment solution and puffing device thereof |
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| CN114453388A (en) * | 2022-01-27 | 2022-05-10 | 四川浩方汇通复合材料有限公司 | Glass fiber solid waste silk re-modification utilization treatment production line and treatment process |
| CN114904889A (en) * | 2022-05-24 | 2022-08-16 | 五河县维佳复合材料有限公司 | Method for preparing high-quality glass fiber powder by recycling glass fiber material |
| CN114904889B (en) * | 2022-05-24 | 2023-03-10 | 五河县维佳复合材料有限公司 | Method for preparing high-quality glass fiber powder by recycling glass fiber material |
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Application publication date: 20191220 Assignee: TAISHAN FIBERGLASS Inc. Assignor: TAISHAN FIBERGLASS ZOUCHENG Co.,Ltd. Contract record no.: X2022980013414 Denomination of invention: Processing method of glass fiber waste silk powder Granted publication date: 20201218 License type: Common License Record date: 20220830 |
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Effective date of registration: 20230727 Address after: No. 657, Beisu Avenue, Beisu Town, Zoucheng City, Jining City, Shandong Province, 273500 Patentee after: Shandong Shuoyuan New Materials Co.,Ltd. Address before: Liyan Industrial Park, Taiping Town, Zoucheng City, Jining City, Shandong Province Patentee before: TAISHAN FIBERGLASS ZOUCHENG Co.,Ltd. |
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