CN108383370A - Inorfil and using coal ash for manufacturing for inorfil technique - Google Patents
Inorfil and using coal ash for manufacturing for inorfil technique Download PDFInfo
- Publication number
- CN108383370A CN108383370A CN201810240793.2A CN201810240793A CN108383370A CN 108383370 A CN108383370 A CN 108383370A CN 201810240793 A CN201810240793 A CN 201810240793A CN 108383370 A CN108383370 A CN 108383370A
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- China
- Prior art keywords
- inorfil
- manufacturing
- technique
- coal ash
- fiber
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
-
- 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
- C03C13/00—Fibre or filament compositions
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
Abstract
The present invention relates to fiber preparation fields, in particular to a kind of inorfil and using coal ash for manufacturing for the technique of inorfil.Using coal ash for manufacturing for the technique of inorfil, include the following steps：Flyash and silico-calcium class inorganic matter are mixed to get the first mixture, the quality of silico-calcium class inorganic matter is the 1 5% of the first mixture.The first mixture is heated at a temperature of 1,200 2200 DEG C, the molten slurry that heating obtains then is passed through fiberizing system into fibre.By the addition silico-calcium substance into flyash, the content of calcium compound and silicon class compound in the first mixture is promoted, the content of fiberforming substance in the first mixture is then promoted, meanwhile, it is granulated convenient for flyash, ensures the preparation of fiber.Meanwhile, it is capable to fully recycle flyash, the way of recycling of flyash is expanded, meanwhile, the cost of flyash recycling is reduced, while expanding the type for the sample that flyash recycles, creates the economic benefit of bigger.
Description
Technical field
The present invention relates to fiber preparation fields, in particular to a kind of inorfil and using coal ash for manufacturing for nothing
The technique of machine fiber.
Background technology
Flyash, is the fine ash that catching is got off from the flue gas after coal combustion, and flyash is the main of coal-burning power plant's discharge
Solid waste.The main oxides group of power plants flyash becomes： SiO2、Al2O3、FeO、Fe2O3、CaO、TiO2Deng.With
The development of power industry, the flyash discharge capacity of coal-burning power plant increases year by year, becomes the larger Industry Waste of the current discharge capacity in China
One of slag, and flyash is general waste residue.A large amount of flyash is untreated, just will produce airborne dust, pollutes air；If being discharged into water
System can cause river to silt up, and toxic chemical substance therein can also cause damages to human body and biology.In the prior art usually
It is that flyash is doped in concrete, reduces the use of cement and fine aggregate, but treated coal ash passes through in this way
Benefit of helping is low, and the amount of the flyash handled is limited, and therefore, it is necessary to design a kind of processing mode of new flyash.
Invention content
The present invention provides a kind of using coal ash for manufacturing for the technique of inorfil, using coal ash for manufacturing for inorganic fibre
Dimension, a kind of new direction is provided for the recycling of flyash.
The present invention also provides a kind of inorfil, stable quality, tenor is not exceeded and functional.
The invention is realized in this way：
It is a kind of using coal ash for manufacturing for the technique of inorfil, include the following steps：
Flyash and silico-calcium class inorganic matter are mixed to get the first mixture, the quality of silico-calcium class inorganic matter is the first mixing
The 1-5% of object；
The first mixture is heated at a temperature of 1200-2200 DEG C, and the molten slurry that heating obtains then is passed through fiberizing system
At fibre.
A kind of inorfil is prepared using coal ash for manufacturing for the technique of inorfil by above-mentioned.
The beneficial effects of the invention are as follows：The present invention's passes through the addition silico-calcium substance into flyash, the first mixing of promotion
The content of calcium compound and silicon class compound in object, then promotes the content of fiberforming substance in the first mixture, meanwhile, it is convenient for
Flyash is granulated, and ensures the preparation of fiber.Meanwhile, it is capable to fully recycle flyash, the way of recycling of flyash is expanded,
Meanwhile the cost of flyash recycling is reduced, while the type for the sample that flyash recycles is expanded, create bigger
Economic benefit.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
It is carried out below to the inorfil of the embodiment of the present invention and using coal ash for manufacturing for the technique of inorfil specific
Explanation.
It is a kind of using coal ash for manufacturing for the technique of inorfil, include the following steps：
S1, heating melting；
First, flyash and silico-calcium class inorganic matter are mixed to get the first mixture, wherein the quality of silico-calcium class inorganic matter
For the 1-5% of the first mixture.In addition to containing the silicon substance such as silicon, silica, the calcium substance such as calcium, calcium oxide in flyash
And the substances such as iron oxide, aluminium oxide and titanium oxide, the type of substance is more and miscellaneous in flyash, individually recycles a certain simple
Substance difficulty is big, and cost recovery is high, and if above-mentioned substance is directly abandoned, also be easy to cause waste.Therefore, inventor wants to work as
The silico-calcium in flyash can be utilized to prepare fiber, still, the content etc. of silicon substance and calcium substance in original flyash
Fiberforming substance content is insufficient, and therefore, inventor is by making the creative labor discovery according to silicon substance and calcium in flyash
The content of substance adds silico-calcium substance, adjusts the quality of calcium compound and silicon class compound, is promoted in the first mixture
The content of fiberforming substance, convenient for subsequently at fibre.And the quality of silico-calcium substance accounts for the 1-5% of the first mixture quality, not only
It can ensure the formation of inorfil, while can ensure that the inorfil being prepared is with good performance.
Further, inorganic raw material can be carbide slag, and carbide slag is of low cost, reduce production cost, be more conducive to simultaneously
Flyash is granulated, and prevents flyash from flying upward.
Meanwhile first the mass ratio of calcium and silicon in mixture be 1.2-1.7:1, it can ensure that silico-calcium is formed in the range
Suitable length, the second best in quality fiber.
The first mixture is granulated after mixing, a diameter of 8-10 centimetres of granule size.It is mixed to first before heating melting
It closes object to be granulated, the transport for the first mixture of being more convenient for, and can prevent flyash from flying upward, then can guarantee silico-calcium substance the
Ratio in one mixture is stablized, and can then ensure subsequently at fine effect.
The first mixture is then heated under conditions of 1200-2200 DEG C, the first mixture can within this temperature range
Fully melting, it is each metal-cured in fiber convenient for the later stage.1200-2200 DEG C be heating furnace temperature, the temperature of molten slurry at this time
Degree is 1400-1500 DEG C, and the harmful organic matter in flyash is decomposed at such a temperature, becomes gaseous nitrogen class chemical combination
Object and sulphur class compound, can remove above-mentioned harmful substance by denitration, desulfurization, can further purify flyash.
S2, gas treatment；
The steam that the first mixture obtains will be heated to cool down, general temperature is down to 400-500 DEG C, which can
Ensure follow-up dust removing effects.And temperature is down to 400-500 DEG C of waste heat for boiler heating from 1200-2200 DEG C.
It is dusted after steam cooling, prevents the dust polluting environment in steam, it is preferable that high temperature electrostatic dedusting is used, it is high
The efficiency of dust collection of warm electrostatic precipitation is up to 99%, can remove the dust in steam.Meanwhile amount per treatment is all larger, energy
Enough a large amount of processing steam.
Contain nitrogen substance and sulfur species in steam, and these substances be easy to cause air pollution, therefore, are steamed in discharge
Denitration and desulfurization process are needed before vapour.Therefore, steam has met discharge standard, Ke Yipai after carrying out denitration and desulfurization successively
Go out.
Denitration and desulfurization are no longer carried out in detail using technique in the prior art or method progress denitration and desulfurization, the present invention
It states.
S3, inorfil is prepared；
Inorfil is prepared using the molten slurry obtained after flyash and the melting of silico-calcium class inorganic matter Hybrid Heating.After heating
Containing in molten slurry can be at fine substance, and each material proportion is suitable, ensures into fine effect.
Specifically, the molten slurry of molten condition after heating being centrifuged first so that liquid becomes the wadding fibrous of reunion,
The kish in raw material molten condition is solidificated in fiber simultaneously, becomes stable glassy state, and intrastitial tenor
Also comply with standard.
But using in above method fiber forming process, there may be the impurity such as dust or glass slag ball to remain in reunion
In fiber, therefore, it is necessary to remove these solid impurities.It specifically removes the gred, slagging-off is the reunion that will be obtained after centrifugation
It is wadding fibrous pass through negative-pressure adsorption.The fiber of reunion is dispelled, meanwhile, lighter fiber is attracted on mesh belt,
And heavier impurity then realizes preliminary slagging-off then by the mesh of mesh belt, ensures the purity of fiber.
It is concentrated after slagging-off, specifically the fiber after slagging-off to be passed through in modified circulatory pool and stir.Changing
Property circulatory pool in stirring so that fiber further disperse, meanwhile, the fiber of the glass dregs and short rent that are mingled in fiber is fallen to
Modified circulatory pool bottom of pond, is further purified fiber, ensures into fine quality.
Meanwhile containing softening agent and dispersant in modified circulatory pool, the content of softening agent is modified circulatory pool water quality
3/1000ths, the content of dispersant is no more than the one thousandth of the modified quality for recycling water.Add softening agent and
Dispersant is more conducive to fiber and is separated into single fibre bundle, while convenient for promoting the performance of fiber, prevents fibrous fracture, ensure at
Fine quality.
After the dispersion and softening of modified circulatory pool, the underflow on modified circulatory pool upper layer is taken away, takes profit after underflow away
With centrifugal force so that short and thick fiber further drops back into, fine quality is advanced optimized into.Specifically, it using centrifugal force, can incite somebody to action
Underflow rotation rises, and then short and thick fiber drops back into again.
There is good suppleness by the fiber for concentrating and centrifuging again, while fiber has certain length,
But fiber is long to be unfavorable for combing, and easily snap off, therefore, it is necessary to the fibers for not waiting length to cut off, and obtain length
Essentially identical fibre bundle.
Specifically applying pressure to the fiber after concentration, then so that long fibre cut-out, breaks according to actual needs
The size for the pressure that the length control split applies.
The fiber after cut-out is then subjected to thickness separation, can then obtain that quality is identical, thickness is identical, length is identical
Fiber, advanced optimize the quality of fiber.
Specifically, the fiber placement after thickness separation is turned off is carried out to stand in water, meanwhile, gas is slowly introducing into water
Body so that water is micro- to quiver, the separation for the fiber that can then be more convenient for.Thickness detaches so that fiber is substantially at 3 microns or more.
3 microns or more of fiber can be dried with Direct Dehydration after separation, obtain the second best in quality fiber, and residual fiber is then
It also needs to be modified, then will also need modified fiber to be passed through in modified pond enhances, and the additive amount of modifying agent is to need to be modified
The 5-10% of the quality of fiber then ensures that modified effect, fiber of the modified diameter more than 1mm equally carry out dewatered drying,
Then the second best in quality fiber can be obtained.
The embodiment of the present invention also provides a kind of inorfil, by it is above-mentioned using coal ash for manufacturing for the work of inorfil
Skill is prepared.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
The present embodiment provides a kind of using coal ash for manufacturing for the technique of inorfil, includes the following steps：
S1, heating melting；
Flyash and carbide slag are mixed to get the first mixture so that the quality of the carbide slag in the first mixture is institute
State the 1-5% of the first mixture quality, i.e. the content of carbide slag is 1-5%, and the mass ratio of calcium and silicon is in the first mixture
1.2-1.7:1 i.e. calcium silicon ratio is 1.2-1.7:1.
The first mixture is then heated under conditions of 1200-2200 DEG C, the temperature for obtaining molten slurry is 1400-1500 DEG C.
S2, gas treatment；
Steam is cooled down, general temperature is down to 400-500 DEG C, then carries out high temperature electrostatic dedusting.
Denitration and desulfurization process are then carried out successively to steam.
S3, inorfil is prepared；
The molten slurry of molten condition after heating is centrifuged first, then by the cotton-shaped fibre of the reunion obtained after centrifugation
Dimension removes the gred by negative-pressure adsorption.
Fiber after slagging-off is passed through in modified circulatory pool and is stirred.Wherein, contain softening agent in modified circulatory pool
And dispersant, the content of softening agent are 3 to the five/1000ths of modified circulatory pool water quality, the content of dispersant is no more than described
The one thousandth of the quality of modified cycle water.
Then the underflow on modified circulatory pool upper layer is taken away, meanwhile, using centrifugal force so that short and thick fiber is further fallen
It returns.
Apply pressure to the fiber after concentration, then so that long fibre cut-out.
Fiber placement after part cut-out is stood in water, meanwhile, it is slowly introducing gas into water, carries out thickness separation, point
From obtained fiber diameter substantially at 3 microns or more.
Finally, Direct Dehydration dries to obtain fiber.
The present embodiment also provides a kind of inorfil, by it is above-mentioned using coal ash for manufacturing for the technique system of inorfil
It is standby to obtain.
Embodiment 2-5
Embodiment 2-5 and the operation of embodiment 1 are almost the same, and difference lies in the operating conditions of embodiment 2-5 to become
Change, specifically, operating condition is referring to table 1.
The operating condition of 1 embodiment 2-5 of table
Limit is also passed through in modified pond by additional embodiment 5, and the additive amount of modifying agent is the quality for needing modified fibre
5-10%, modified carry out dewatered drying.
Experimental example
The fiber that the embodiment of the present invention 1 is prepared is detected, according to GB8624-2012, GB10006-1988 with
And GB/T10125-2012 is detected, testing result is referring to table 2.
The testing result of 2 fiber of table
According to table 2 it is found that the present invention is by adding silico-calcium substance can smoothly be prepared inorfil, and inorganic fibre
It ties up fire protecting performance and corrosion resistance is good, can be applied to industrial.
In conclusion the present invention by into flyash add silico-calcium substance, promoted the first mixture in calcium class
The content for closing object and silicon class compound, then promotes the content of fiberforming substance in the first mixture, meanwhile, it is made convenient for flyash
Grain, ensures the preparation of fiber.Meanwhile, it is capable to fully recycle flyash, the way of recycling of flyash is expanded, meanwhile, drop
The cost of low flyash recycling, while the type for the sample that flyash recycles is expanded, create the economic effect of bigger
Benefit.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. it is a kind of using coal ash for manufacturing for the technique of inorfil, which is characterized in that include the following steps：
Flyash and silico-calcium class inorganic matter are mixed to get the first mixture, the quality of the silico-calcium class inorganic matter is described first
The 1-5% of mixture；
First mixture is heated at a temperature of 1200-2200 DEG C, and the molten slurry that heating obtains then is passed through fiberizing system
At fibre.
2. it is according to claim 1 using coal ash for manufacturing for the technique of inorfil, which is characterized in that the silico-calcium class without
Machine object is carbide slag.
3. it is according to claim 2 using coal ash for manufacturing for the technique of inorfil, which is characterized in that heating before to first
Mixture is granulated, a diameter of 8-10 centimetres of granule size.
4. it is according to claim 1 using coal ash for manufacturing for the technique of inorfil, which is characterized in that the fiberizing system
At fibre be molten condition after heating molten slurry after centrifugation again successively by slagging-off, concentration, cut-out and thickness separation after
Obtained fiber.
5. it is according to claim 4 using coal ash for manufacturing for the technique of inorfil, which is characterized in that slagging-off is will to pass through
The wadding fibrous of the reunion obtained after centrifugation passes through negative-pressure adsorption.
6. it is according to claim 4 using coal ash for manufacturing for the technique of inorfil, which is characterized in that concentration is will to pass through
Fiber after slagging-off is passed through in modified circulatory pool and stirs.
7. it is according to claim 6 using coal ash for manufacturing for the technique of inorfil, which is characterized in that in modified circulatory pool
Containing softening agent and dispersant, the content of the softening agent is 3rd/1000ths of modified circulatory pool water quality, dispersant
Content is no more than the one thousandth of the modified quality for recycling water.
8. it is according to claim 4 using coal ash for manufacturing for the technique of inorfil, which is characterized in that cut-out is to concentration
Fiber afterwards applies pressure so that fibrous fracture.
9. it is according to claim 4 using coal ash for manufacturing for the technique of inorfil, which is characterized in that thickness separation be by
Fiber is stood into the water, while being passed through gas, detaches the fiber of diameter 3mm or more.
10. a kind of inorfil, which is characterized in that its by it is described in claim 1 using coal ash for manufacturing for inorfil
Technique is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810240793.2A CN108383370A (en) | 2018-03-22 | 2018-03-22 | Inorfil and using coal ash for manufacturing for inorfil technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810240793.2A CN108383370A (en) | 2018-03-22 | 2018-03-22 | Inorfil and using coal ash for manufacturing for inorfil technique |
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| CN108383370A true CN108383370A (en) | 2018-08-10 |
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| CN201810240793.2A Pending CN108383370A (en) | 2018-03-22 | 2018-03-22 | Inorfil and using coal ash for manufacturing for inorfil technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079894A (en) * | 2019-04-22 | 2019-08-02 | 李科 | A kind of process for extracting fiber using greasy filth |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539347A (en) * | 2012-07-09 | 2014-01-29 | 上海华明高技术（集团）有限公司 | Inorganic fiber with solid waste as raw material and production method thereof |
| US9617734B2 (en) * | 2013-01-08 | 2017-04-11 | Saint-Gobain Adfors Canada, Ltd. | Glass mat for roofing products |
-
2018
- 2018-03-22 CN CN201810240793.2A patent/CN108383370A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539347A (en) * | 2012-07-09 | 2014-01-29 | 上海华明高技术（集团）有限公司 | Inorganic fiber with solid waste as raw material and production method thereof |
| US9617734B2 (en) * | 2013-01-08 | 2017-04-11 | Saint-Gobain Adfors Canada, Ltd. | Glass mat for roofing products |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079894A (en) * | 2019-04-22 | 2019-08-02 | 李科 | A kind of process for extracting fiber using greasy filth |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Ke Inventor after: Xia Shu Inventor after: Li Xiaowei Inventor after: Liu Jin Inventor after: Li Dianjie Inventor after: Yan Xiucheng Inventor before: Li Ke Inventor before: Xia Peng Inventor before: Li Xiaowei Inventor before: Liu Jin Inventor before: Li Dianjie Inventor before: Yan Xiucheng |
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Application publication date: 20180810 |
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