CN102408190A - Method for producing glass fibers by using glass fiber waste silks - Google Patents
Method for producing glass fibers by using glass fiber waste silks Download PDFInfo
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- CN102408190A CN102408190A CN2011102501970A CN201110250197A CN102408190A CN 102408190 A CN102408190 A CN 102408190A CN 2011102501970 A CN2011102501970 A CN 2011102501970A CN 201110250197 A CN201110250197 A CN 201110250197A CN 102408190 A CN102408190 A CN 102408190A
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Abstract
The invention relates to a method for producing glass fibers by using glass fiber waste silks, which comprises the following steps of: S11, washing glass fiber waste silks; step S12, pulverizing the washed glass fiber waste silks, and controlling particle sizes of the pulverized glass fiber waste silks to 20 meshes to 325 meshes; step S13, dehydrating the pulverized glass fiber waste silks to result in below 1.5% of water in percentage by weight in the glass fiber waste silks; and step S14, uniformly mixing the dehydrated glass fiber waste silks with general glass fiber material powders, and placing the mixture in a glass fiber tank furnace for producing the glass fibers. The glass fiber waste silks can be uniformly mixed with the powder materials by controlling ground particle size, water content and ratio of the glass fiber waste silks to the powder materials, so that the defects on white spots and bubbles in the prior art are overcome, quality of the glass solution is improved, energy consumption in producing the glass solution is reduced, proportion of using the waste silks is increased, quality of the glass fibers is ensured and the phenomenon of prolonging raw material line of melting part will not be caused.
Description
Technical field
The present invention relates to the working method of spun glass, particularly relate to a kind of method of utilizing the spun glass waste silk to produce spun glass.
Background technology
At present, the production technique of glass fiber industry mainly comprises platinum replacing stove drawing process and tank furnace drawing process.These two kinds of technologies all can produce a large amount of spun glass waste silks, and these waste silks mainly are made up of hard silk and wire-drawing machine head silk before wire drawing the higher authorities.The composition of all spun glass waste silks is the same with the composition of spun glass finished product, belongs to ceramic mesosilicic acid salt material.For the spun glass waste silk, can be with its buried processing of digging pit, still, this kind processing mode need consume substantial contribution, and, because its non-degradable can influence environment.
For fear of the problem that buried spun glass waste silk produces, mode commonly used at present is the spun glass waste silk to be regenerated to produce as the glass production raw material utilize, as producing glass, mosaic.Also have as the spun glass raw material and utilize, for example No. the 200920151767.9th, one Chinese patent application, and this patented claim discloses the glass fibre tank furnace of built-up type feeding mode; Through this tank furnace, can the spun glass waste silk be utilized again, still; This kind addition manner is separate unit or many batch chargers add separately, has defectives such as bubble, white point in the spun glass, but also influences wire-drawing operation; Simultaneously, because spun glass waste silk burn-off rate causes the batch charger local viscosity excessive soon, dog-house is freezed; Cause the difficulty that feeds intake, and make batch charger water bag loss easily; And for example, Chinese patent discloses 1486948A number and also discloses a kind of " is the working method of raw material production spun glass with the spun glass waste silk ", and it is a raw material with the spun glass waste silk all; With waste silk through flushing, pulverizing, impurity clean, after the dehydration pre-treatment; Put in the tank furnace melting end and be fused into glass metal, flow into tank furnace channel then, supply wire-drawing frame to produce spun glass again; The output of this spun glass of all producing with the spun glass waste silk is lower; And the mechanical property of finished product is relatively poor, and its application scenario receives bigger limitation, the more important thing is; Using this method to produce spun glass needs newly to put up a kiln separately, has increased the cost of investment of producing spun glass greatly.
Summary of the invention
The problem that the present invention solves is to utilize the problem of the spun glass end properties difference of spun glass waste silk production.
For addressing the above problem, technical scheme provided by the invention is: a kind of method of utilizing the spun glass waste silk to produce spun glass is provided, and its characteristic may further comprise the steps:
A, processing spun glass waste silk carry out grinding, processed then after cleaning;
B, obtain the spun glass raw materials for production, with spun glass waste silk after grinding and the dehydration and general spun glass raw material powder proportional mixing;
C, above-mentioned spun glass raw material is dropped into glass fibre tank furnace carry out spun glass production.
Above-mentioned processing spun glass waste silk and obtain the spun glass raw materials for production and may further comprise the steps:
Step S11: glass cleaning fiber waste silk;
Step S12: the spun glass waste silk after grinding cleans, the granularity of the spun glass waste silk behind the grinding is controlled between 20 orders～325 orders;
Step S13: the spun glass waste silk behind the said grinding of processed reaches below 1.5% spun glass waste silk water ratio by weight percentage;
Step S14: with the spun glass waste silk after the processed and general spun glass raw material powder with 5.2%～40.9% ratio uniform mixing.Mixed uniformly mode is that strength is mixed or mechanically mixing, strength mix be with the spun glass waste silk after the processed in powder is squeezed into the homogenizing jar, homogenization pressures is 600Kpa, the homogenizing time is 120 seconds/ton.
Preferably, said spun glass waste silk water ratio by weight percentage is below 1%.
Preferably, the granularity of said spun glass waste silk is controlled between 20 orders～140 orders.
Preferably, the granularity of said spun glass waste silk is controlled between 20 orders～120 orders.
More preferably, the granularity of said spun glass waste silk is controlled between 40 orders～100 orders.
Preferably, the spun glass waste silk after the said processed with the ratio of general spun glass raw material powder is: 9.9%～35.2%.
More preferably, the spun glass waste silk after the said processed with the ratio of general spun glass raw material powder is: 9.9%～24.5%.
Compared with prior art; The invention has the beneficial effects as follows: the present invention is through the ratio of granularity, water ratio, spun glass waste silk and the powder of control grinding; Improved the proportion of utilization of spun glass waste silk; Make that spun glass waste silk and powder can uniform mixing, the spun glass waste silk that fusing earlier can not occur is wrapped in the situation on unfused powder surface, the different glass metal density of generation in the tank furnace melt region also can not occur causing because burn-off rate is different; Upset the mobile situation that reduces glass quality of original glass metal, improved the quality of spun glass; Moreover, can also utilize again by the spun glass waste silk, reduce solid useless discharging; Practice thrift the frit usage quantity, and the melting rate of spun glass waste silk and powder is good.
Description of drawings
Fig. 1 is that the present invention utilizes the spun glass waste silk to produce the FB(flow block) of spun glass.
Fig. 2 is spun glass waste silk addition and energy consumption analysis synoptic diagram.
Embodiment
For specifying technology contents of the present invention, structural attitude, the purpose that is realized and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
See also Fig. 1, the present invention utilizes the method for spun glass waste silk production spun glass following:
Step S11: clean said spun glass waste silk:
In this step, at first spun glass waste silk water is washed, in flushing process, must remove the chemical industry organism that is coated in spun glass waste silk surface, such as, treating compound.Purging method can be adopted prior art, repeats no more at this, as long as can remove the chemical industry organism that is coated in spun glass waste silk surface.Clean after the described spun glass waste silk; Said spun glass waste silk is pulverized; Spun glass waste silk to after pulverizing cleans on the impurity rinsing table; Handle so that carry out removal of impurities, the removal of impurities here comprises with the magnet apparatus removal sneaks into the metallic impurity in the spun glass waste silk, also comprises and removes other metals or the impurity that produces in refractory materials, the crushing process.
Step S12: the spun glass waste silk after grinding cleans, the granularity of the spun glass waste silk behind the grinding is controlled between 20 orders～325 orders:
In this step, the contriver finds, when spun glass waste silk during without grinding, just is ground into staple fibre; When this staple fibre is mixed with powder, can't mix, and conglomeration easily; Have a strong impact on the conveying of powder, owing to the spun glass waste silk after this pulverizing can't mix with powder, so; Produce when utilizing in spun glass waste silk regeneration, can only spun glass waste silk and powder be dropped into respectively and carry out spun glass production in the tank furnace, the drawback of this kind mode is: the ratio of spun glass waste silk interpolation is low; Generally be no more than 10%, reason is: spun glass waste silk and powder melting rate are different, and spun glass waste silk melting rate can cause the parcel phenomenon soon; Thereby, cause kiln melting end raw material line lengthening, be unfavorable for founding.
When order number during less than 20 orders; Particle is too big, the spun glass waste silk behind the grinding can't with the powder thorough mixing since granularity cause too greatly mix inhomogeneous; Can make that spun glass waste silk burn-off rate is too fast; Be prone to produce the layering fusing and be wrapped in the powder outside and influence the glass metal refining quality, and the present invention makes spun glass waste silk and powder uniform mixing through the control to granularity just, with the quality of assurance spun glass.When order number during greater than 325 orders, be because the hardness of spun glass is very high, and particle is more little on the one hand, milling equipment is required high more, on the other hand because the grinding time is long, decrease in efficiency, introducing iron contamination easily simultaneously, thereby influence the quality of spun glass.Granularity through experiment showed, the spun glass behind the grinding is selected 20 orders～325 orders, and preferably 20 orders～140 orders are more preferably 20 orders～120 orders, are more preferably 40 orders～100 orders.
Step S13: the spun glass waste silk behind the said grinding of processed reaches below 1.5% spun glass waste silk water ratio by weight percentage:
In this step, said processed is said spun glass waste silk to be deposited in carry out the nature dehydration in the open, and the contriver finds; No matter be the spun glass waste silk or the moisture requirement of powder, it is more little good more all to hope, needs a large amount of heat because the moisture in spun glass waste silk or the powder is heated to 1500 degree identical with the kiln room temps; And the contriver also finds, when water ratio surpasses 1.5%; The compound conglomeration that spun glass waste silk and powder constitute is serious, and homogeneity can not get guaranteeing, particularly; Can influence melting rate, cause refining quality to descend.And when water ratio 1%～1.5% the time, compound has clustering phenomena, the compound that spun glass waste silk and powder constitute has clustering phenomena, the homogenizing time that needs to prolong in the subsequent process solves, to not influence of melting quality.When water ratio is lower than 1%, all there is not influence for homogeneity, conveying and the melting quality of admixtion.To sum up, water ratio need take into full account according to energy consumption, melting quality (burn-off rate), homo-effect.
Step S14: spun glass waste silk after the processed and powder uniform mixing are dropped into glass fibre tank furnace production spun glass:
Except the granularity of spun glass waste silk can influence spun glass waste silk and powder blended homogeneity; Thereby the melting rate that causes spun glass waste silk and powder is inconsistent and influence outside the glass metal quality, and the adding proportion of said spun glass waste silk and powder also is the factor that influences the spun glass quality; Such as; Influence spun glass and powder blended homogeneity, for the problems referred to above are described, the contriver is the example explanation with table one.
Table one
Can learn from table one; Along with particle size values must increase, the homogeneity of spun glass waste silk and powder also improves gradually, in the technical scheme of the present invention; The particle diameter of the spun glass waste silk of grinding is between 20 orders～140 orders; Preferably between 20 orders～120 orders, considering from homogeneity, equipment requirements, milling time and mill efficiency, most preferably is 40 orders～100 orders.Can also know that from table one along with spun glass waste silk particle diameter reduces the increase with the shared compound ratio of spun glass waste silk, homogeneity is become better and better.
In addition, the proportionlity of spun glass waste silk and compound also is the factor that influences energy consumption, and below table two is several examples of spun glass waste silk adding proportion and energy consumption relation:
Table two
In above-mentioned table two and the specification sheets, said compound is the summation of spun glass waste silk addition and powder, and data are to be object with the electricity fusing-aid kiln, and energy consumption comprises electricity, Sweet natural gas.
See also Fig. 2 and combine above-mentioned table two, can find out from above-mentioned table two and Fig. 2, along with the increase of spun glass waste silk adding proportion, the energy consumption of unit glass metal descends to some extent; The unit output energy consumption also descends to some extent, and it is that the increase of spun glass waste silk makes the content of admixtion reduce accordingly because under the certain situation of compound total amount that the unit output energy consumption descends, and the temperature of fusion of spun glass waste silk is lower than the temperature of fusion of admixtion; So along with the increase of spun glass waste silk amount, unit production capacity energy consumption reduces; The rate that melts into of glass metal is also along with rising, still, because the increase of spun glass waste silk addition; Can cause the melting rate fast (also promptly, speed inconsistent) of the melting rate of spun glass waste silk than powder, the inconsistent glass fibre tank furnace bottom temp that makes of this melting rate has certain decline; For guaranteeing the temperature of glass fibre tank furnace, need to increase the power of electricity fusing-aid, so; The electricity fusing-aid energy consumption rises, particularly, and when the spun glass waste silk increases to 35.2%; The unit output energy consumption of production operation obviously rises, and wherein one of reason is that the increase of spun glass waste silk amount makes spun glass waste silk parcel powder, thereby; The powder that needs more heat fusing parcel is so the unit output energy consumption rises.The contriver also finds, along with spun glass waste silk amount surpasses after 35.2%, the Homes Using TV of production operation, flies a broken end situation and rises to some extent, and output also obviously descends.In conjunction with Fig. 2 and table two; Consider from aspects such as energy consumption, Homes Using TV, waste silk broken end, melting rate (the spun glass waste silk is to the parcel of powder) and the described homogeneities of table one; The shared compound ratio of spun glass waste silk is 5.2%～40.9%; Comparatively suitable in 5.2%～35.2% scope, be preferably 9.9%～24.5%.
In this step that the spun glass waste silk is following with the mixed uniformly method of powder: that spun glass waste silk and powder (producing the admixtion that spun glass is used) are squeezed in the homogenizing jar; In the homogenizing jar, feed the pressurized air of 600Kpa, and carry out homogenizing according to 120 seconds/ton homogenizing time.At last; The mixing raw material of spun glass waste silk after the homogenizing and powder formation is sent into furnace hopper; Then the mixing raw material in the furnace hopper being dropped into the tank furnace melting end and be molten into glass metal, is that spun glass can adopt prior art with this glass metal production, repeats no more at this.
In sum, the contriver finds, is utilizing spun glass to produce in the process of spun glass; When the raw material of production spun glass all adopts the spun glass waste silk, though can practice thrift cost; The spun glass poor mechanical property of producing belongs to low-end product, and if adopt the spun glass waste silk to mix and when producing spun glass with powder; There are defectives such as bubble, white point in spun glass, and wire-drawing operation is poor, and the contriver further finds; The reason that causes bubble, white point and influence wire-drawing operation is that spun glass waste silk and powder are not full and uniform mixes, under not full and uniform blended situation, owing to the melting speed ratio powder of spun glass waste silk causes the spun glass waste silk of fusing earlier to be wrapped in unfused powder surface soon; So, defectives such as white point, bubble can appear; And not mixed uniformly spun glass waste silk and powder make because of burn-off rate is different and produce different glass metal density in the tank furnace melting zone, upset flowing of original glass metal; Reduced the quality of glass metal, so, wire-drawing operation influenced.So; The ratio that the contriver further analyzes particle diameter, water ratio, spun glass waste silk and the powder of knowing the spun glass waste silk all is to influence spun glass waste silk and the well-mixed factor of powder; Find further that also the spun glass waste silk and the ratio regular meeting of powder influence situation such as the burn-off rate of spun glass waste silk and powder, energy consumption, tank furnace bottom temp, Homes Using TV, waste silk broken end, output; Based on above reason; The contriver invents the above-mentioned method of utilizing the spun glass waste silk to produce spun glass, and the spun glass through this method is produced has following advantage: 1, improve spun glass waste silk usage ratio; 2, promote and to utilize the spun glass waste silk to produce the glass fiber product quality, 3, defectives such as white point, bubble can not occur; 4, melting rate is high, the glass metal quality is good; 5, saved production glass metal energy consumption.
With the above-mentioned method of utilizing the spun glass waste silk to produce spun glass is that the basis can be known; The present invention also provides a kind of method of obtaining the spun glass raw materials for production; This method is that the spun glass waste silk that produces in producing is handled; And the spun glass waste silk after will handling mixes with admixtion and obtains to produce the raw material of spun glass, and this method comprises the steps: glass cleaning fiber waste silk; Spun glass waste silk after grinding cleans, the granularity of the spun glass waste silk behind the grinding is controlled between 20 orders～325 orders, 20 orders～140 orders preferably, 20 orders～120 orders preferably, it is 40 orders～100 orders that choosing is more arranged; Spun glass waste silk behind the said grinding of processed reaches below 1.5% spun glass waste silk water ratio by weight percentage, and said water ratio is preferably below 1%.With spun glass waste silk after the processed and powder uniform mixing; Concrete, the spun glass waste silk after the processed accounts for 5.2%～40.9% of mixing raw material (spun glass waste silk and powder) gross weight, and preferably 9.9%～35.2%; Be more preferably 9.9%～24.5%; In powder was squeezed into the homogenizing jar, homogenization pressures was 600Kpa with the spun glass waste silk after the processed, and the homogenizing time is 120 seconds/ton.Said granularity is controlled between 20 orders～120 orders; The spun glass waste silk after the processed and the ratio of powder are between 9.9%～35.2%; Said granularity is controlled between 40 orders～100 orders, and the spun glass waste silk after the processed and the ratio of powder are between 9.9%～24.5%.
When being used for the process that spun glass is produced through the raw material that above-mentioned spun glass working method is obtained, because the spun glass waste silk mixes with powder is full and uniform, so; The spun glass waste silk can not occur is wrapped on the powder; The situation that spun glass bubble, white point can not occur and influence wire-drawing operation, and the glass metal quality is good; Energy consumption is low, the melting rate of spun glass waste silk and powder melting rate balance.
Be the basis with the above-mentioned method of utilizing the spun glass waste silk to produce spun glass, the present invention also provides a kind of method of handling the spun glass waste silk, and this method comprises: glass cleaning fiber waste silk; Spun glass waste silk after grinding cleans, the granularity of the spun glass waste silk behind the grinding is controlled between 20 orders～140 orders, and said granularity preferably is controlled between 20 orders～120 orders, better is controlled between 40 orders～100 orders; Spun glass waste silk behind the said grinding of processed reaches below 1.5% spun glass waste silk water ratio by weight percentage, and said water ratio preferably is controlled at below 1%.
When the spun glass waste silk that aforesaid method is handled is used to produce spun glass; Can guarantee the uniform mixing of spun glass waste silk and powder; Also clustering phenomena can not occur when the spun glass waste silk mixes with powder, and energy consumption is low, the melting rate that can not influence the spun glass waste silk.
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be regarded as limitation of the present invention, protection scope of the present invention should be as the criterion with claim institute restricted portion.For those skilled in the art, do not breaking away from the spirit and scope of the present invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. a method of utilizing the spun glass waste silk to produce spun glass is characterized in that, may further comprise the steps:
A, processing spun glass waste silk carry out grinding, processed then after cleaning;
B, obtain the spun glass raw materials for production, with spun glass waste silk after grinding and the dehydration and general spun glass raw material powder proportional mixing;
C, above-mentioned spun glass raw material is dropped into glass fibre tank furnace carry out spun glass production.
2. the method for utilizing the spun glass waste silk to produce spun glass according to claim 1 is characterized in that, said processing spun glass waste silk and obtain the spun glass raw materials for production and carry out according to the following steps:
Step S11: glass cleaning fiber waste silk;
Step S12: the spun glass waste silk after grinding cleans, the granularity of the spun glass waste silk behind the grinding is controlled between 20 orders～325 orders;
Step S13: the spun glass waste silk behind the said grinding of processed reaches below 1.5% spun glass waste silk water ratio by weight percentage;
Step S14: with the spun glass waste silk after the processed and general spun glass raw material powder with 5.2%～40.9% ratio uniform mixing.
3. according to the said method of utilizing the spun glass waste silk to produce spun glass of claim 2, it is characterized in that said spun glass waste silk water ratio by weight percentage is below 1%.
4. according to the said method of utilizing the spun glass waste silk to produce spun glass of claim 2, it is characterized in that the granularity of said spun glass waste silk is controlled between 20 orders～140 orders.
5. according to the said method of utilizing the spun glass waste silk to produce spun glass of claim 4, it is characterized in that the granularity of said spun glass waste silk is controlled between 20 orders～120 orders.
6. according to the said method of utilizing the spun glass waste silk to produce spun glass of claim 4, it is characterized in that the granularity of said spun glass waste silk is controlled between 40 orders～100 orders.
7. the method for utilizing the spun glass waste silk to produce spun glass according to claim 2 is characterized in that, with spun glass waste silk after the processed and powder uniform mixing.
8. the method for utilizing the spun glass waste silk to produce spun glass according to claim 2; It is characterized in that; Said spun glass waste silk is that strength is mixed or mechanically mixing with the mixed uniformly mode of powder; Strength mix be with the spun glass waste silk after the processed in powder is squeezed into the homogenizing jar, homogenization pressures is 600Kpa, the homogenizing time is 120 seconds/ton.
9. the method for utilizing the spun glass waste silk to produce spun glass according to claim 2 is characterized in that, the spun glass waste silk after the said processed with the ratio of general spun glass raw material powder is: 9.9%～35.2%.
10. the method for utilizing the spun glass waste silk to produce spun glass according to claim 9 is characterized in that, the spun glass waste silk after the said processed with the ratio of general spun glass raw material powder is: 9.9%～24.5%.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690053A (en) * | 2012-05-23 | 2012-09-26 | 四川航天拓鑫玄武岩实业有限公司 | Reproduction method of basalt continuous fiber production waste |
| CN103071574A (en) * | 2013-01-23 | 2013-05-01 | 内江华原电子材料有限公司 | Preparation method and application of glass fiber powder |
| CN106583420A (en) * | 2016-12-19 | 2017-04-26 | 泰山玻璃纤维有限公司 | Recovering method and recovering device for glass fiber waste filaments |
| CN106769633A (en) * | 2017-01-22 | 2017-05-31 | 巨石集团九江有限公司 | A kind of method of testing of the glass fiber yarn ball internal moisture that high frequency is baked |
| CN106927695A (en) * | 2017-03-30 | 2017-07-07 | 齐鲁工业大学 | The low temperature closed-loop process technique of discarded glass |
| CN109020188A (en) * | 2018-09-20 | 2018-12-18 | 泰山玻璃纤维有限公司 | The method that glass fiber waste silk returns kiln reprocessing |
| CN109626824A (en) * | 2019-01-16 | 2019-04-16 | 河南光远新材料股份有限公司 | A kind of pre-treating method of glass fabric wire drawing |
| CN110590188A (en) * | 2019-08-29 | 2019-12-20 | 泰山玻璃纤维邹城有限公司 | Processing method of waste glass fiber powder |
| CN110756550A (en) * | 2019-10-08 | 2020-02-07 | 宁波九镆科技有限公司 | Process for recycling waste glass fibers of glass fiber plant |
| CN110862234A (en) * | 2019-12-12 | 2020-03-06 | 重庆国际复合材料股份有限公司 | Recovery method of glass fiber waste silk |
| CN113246426A (en) * | 2021-05-11 | 2021-08-13 | 山东玻纤集团股份有限公司 | Production system and method of glass fiber reinforced composite material |
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| CN102690053B (en) * | 2012-05-23 | 2014-07-30 | 四川航天拓鑫玄武岩实业有限公司 | Reproduction method of basalt continuous fiber production waste |
| CN102690053A (en) * | 2012-05-23 | 2012-09-26 | 四川航天拓鑫玄武岩实业有限公司 | Reproduction method of basalt continuous fiber production waste |
| CN103071574A (en) * | 2013-01-23 | 2013-05-01 | 内江华原电子材料有限公司 | Preparation method and application of glass fiber powder |
| CN106583420A (en) * | 2016-12-19 | 2017-04-26 | 泰山玻璃纤维有限公司 | Recovering method and recovering device for glass fiber waste filaments |
| CN106769633A (en) * | 2017-01-22 | 2017-05-31 | 巨石集团九江有限公司 | A kind of method of testing of the glass fiber yarn ball internal moisture that high frequency is baked |
| CN106769633B (en) * | 2017-01-22 | 2020-10-27 | 巨石集团九江有限公司 | Method for testing moisture in high-frequency baked glass fiber yarn cluster |
| CN106927695B (en) * | 2017-03-30 | 2019-07-19 | 齐鲁工业大学 | The low temperature closed-loop process technique of discarded glass |
| CN106927695A (en) * | 2017-03-30 | 2017-07-07 | 齐鲁工业大学 | The low temperature closed-loop process technique of discarded glass |
| CN109020188A (en) * | 2018-09-20 | 2018-12-18 | 泰山玻璃纤维有限公司 | The method that glass fiber waste silk returns kiln reprocessing |
| CN109626824A (en) * | 2019-01-16 | 2019-04-16 | 河南光远新材料股份有限公司 | A kind of pre-treating method of glass fabric wire drawing |
| CN110590188A (en) * | 2019-08-29 | 2019-12-20 | 泰山玻璃纤维邹城有限公司 | Processing method of waste glass fiber powder |
| CN110756550A (en) * | 2019-10-08 | 2020-02-07 | 宁波九镆科技有限公司 | Process for recycling waste glass fibers of glass fiber plant |
| CN110862234A (en) * | 2019-12-12 | 2020-03-06 | 重庆国际复合材料股份有限公司 | Recovery method of glass fiber waste silk |
| CN113246426A (en) * | 2021-05-11 | 2021-08-13 | 山东玻纤集团股份有限公司 | Production system and method of glass fiber reinforced composite material |
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Application publication date: 20120411 |