CN108144367A - A kind of method for making combustion gas exhaust gas filter felt - Google Patents
A kind of method for making combustion gas exhaust gas filter felt Download PDFInfo
- Publication number
- CN108144367A CN108144367A CN201711426183.3A CN201711426183A CN108144367A CN 108144367 A CN108144367 A CN 108144367A CN 201711426183 A CN201711426183 A CN 201711426183A CN 108144367 A CN108144367 A CN 108144367A
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- Prior art keywords
- exhaust gas
- combustion gas
- filter felt
- woven fabrics
- gas exhaust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- Filtering Materials (AREA)
Abstract
A kind of method for making combustion gas exhaust gas filter felt, 40%~45% is maintained at by the solid content for controlling the main component binding agent in combustion gas exhaust gas glass fiber filter felt, obtain stronger more preferable flexility, plasticity, heat resistance, tensile strength higher, the combustion gas exhaust gas glass fiber filter felt that subsequent machining technology requirement can be met, the ripple suppressed is smooth, plasticity and continuous production are good, disclosure satisfy that and is required using institute.
Description
Technical field
The present invention relates to the manufacturing method in glass fibre non-woven field, specifically filter felt, the present invention is suitable for center
Air conditioning filter, flue filtering etc..
Background technology
In recent years, China is more and more tighter to environmental requirement, and the requirement denitrogenated to combustion gas flue gas desulfunzation is higher and higher, thus makees
For sulphur removal except the application amount of the combustion gas exhaust gas filter felt of nitrogen carriers rises year by year.According to incompletely statistics, which introduces about
To 4,500,000 square meters or so, such production throughput of the country is essentially 0 at present, can not reach the combustion gas exhaust gas of customer requirement
Filter felt.The application amount of combustion gas exhaust gas filter felt is rising year by year in the world, and domestic demand is also being continuously increased.
In the prior art, it will usually be processed using glass fibre as raw material, filter felt (i.e. filter material is made
Material), it is re-compacted later into corrugation ripple state.Glass fibre is that a kind of excellent inorganic non-metallic material advantage is insulating properties
It is good, heat resistance is strong, corrosion resistance is good, high mechanical strength, it using glass marble is raw material through high temperature melting, wire drawing, technique manufacture that it, which is,
Into, a diameter of several microns of monofilament are equivalent to the 1/20-1/5 of a hairline, per bundle fiber to twenties microns
Precursor is all made of hundreds of even thousands of monofilament.Glass fibre is typically used as the reinforcing material in composite material.But shortcoming
It is that property is crisp, wearability is poor.Filter felt non-woven fabrics density is more uniform made of such material, and aperture of breathing freely is small.But it is exactly
Because glass fibre flexility is poor, fried hair is will appear in corrugating, what most glass fiber single filaments were holded up shows
As, the glass fibre holded up using when easily come off, air can be polluted instead, when the glass fibre to come off adds up to a certain extent
It can Severe blockage filtration channel.Combustion gas exhaust gas glass fiber filter felt, this product user requirement felt drawing force is high, generally requires 300N/
More than 50mm.And temperature tolerance is required to reach the requirement of 300 DEG C of user or more, and have certain acid resistance requirement.But glass fibers
Dimension table face carries one layer of size, makes fiberglass surfacing more smooth, leads to the adhesive force of binding agent to reduce, so as to which product is drawn
Stretch is generally in 160~200N/50mm.This is also the reason of corrugating large area is caused to be broken.Therefore inventor thinks have
A kind of flexility of necessity offer is more preferable, plasticity, heat resistance is stronger, tensile strength higher, can meet subsequent machining technology
The non-woven of requirement makees method with filtering felt.
In recent years, China rises the application amount of combustion gas exhaust gas filter felt year by year, but substantially buys the product of South Korea, according to
The combustion gas exhaust gas filter felt for about reaching 3,600,000 square meters or so is introduced in incomplete statistics from South Korea every year.And the country there is no specially at present
The production equipment of combustion gas exhaust gas filter felt, annual production capacity are essentially 0, and the combustion gas that can not reach foreign customers requirement is given up
Gas glass fiber filter felt, only a small amount of low-grade combustion gas exhaust gas glass fiber filter felt, has larger gap with foreign technology.
Invention content
The combustion gas exhaust gas glass fiber filter felt of a small amount of low grade to solve to obtain by the prior art cannot meet requirement
The problem of, the present invention proposes a kind of method for making combustion gas exhaust gas filter felt.
The present invention detailed process be：
Step 1：Prepare thickener；
The preparation thickener is to add in deionized water to stir 18~20 hours by hydroxyethyl cellulose to be formulated；
The weight ratio of the hydroxyethyl cellulose and water is 20：100.
Step 2：Plain boiled water is configured；
The configuration plain boiled water is to add in the thickener of preparation in 80~85 tons of deionized waters, obtains 100~110 tons and glues
Spend the plain boiled water for 7cp~9cp.
Step 3：Prepare binding agent；
Commercially available acrylic acid glue is selected, adds in deionized water wherein, the solid content of the acrylic acid glue is diluted
To 40%~45%；It stirs evenly in a kettle.
Step 4：Alkali-free glass fibre is chopped the dispersion of silk；
The alkali-free glass fibre silk that is chopped is added in the blanking velocity of 5~7kg per minute in plain boiled water by scale conveyer
It is dispersed with stirring.Obtain slurry.
The alkali-free glass fibre is chopped a diameter of 10 μm ± 1 μm of silk, and length is 12mm ± 1mm.
Step 5：The molding dehydration of slurry；
Obtained slurry machine is dehydrated, the silk that is chopped of the alkali-free glass fibre in slurry is made uniformly to be coated on forming net, is obtained
To non-woven fabrics.Start the suction system of molding machine, suction dehydration is carried out to the non-woven fabrics being uniformly coated on forming net, is made described
The water content of non-woven fabrics is down to less than 5%.
Step 6：It drenches glue, take out glue；
Prepared binding agent by steeping vat is uniformly drenched to the upper surface for being added in non-woven fabrics, and adds leaching by suction
Binding agent in the upper surface of non-woven fabrics penetrates non-woven fabrics, while extra glue is drawn back recycling；The non-woven fabrics contains
Glue amount is 10~20%.Obtain the non-woven fabrics through filtering glue.
Step 7：Drying；
The obtained non-woven fabrics through filtering glue is delivered to drying oven and carries out level Four drying.Baking in the first order and the second level
During dry, make the non-woven fabrics drying and dewatering；In the drying course of the third level and the fourth stage, make the non-woven fabrics binding agent
Curing, obtains combustion gas exhaust gas filter felt.It winds spare.
The temperature of the level Four drying respectively is 150 DEG C, 180 DEG C, 200 DEG C and 250 DEG C.
The purpose of the present invention is to provide a kind of flexility is more preferable, plasticity, heat resistance are stronger, tensile strength more
Height can meet subsequent machining technology requirement.
There are two types of usages in the filter for combustion gas exhaust gas glass fiber filter felt：
1st, solvent resistance need to be had by doing the tablet used time；
2nd, flexibility need to be had by doing the corrugated paper used time.
When determining technical scheme of the present invention, by test repeatedly in determining combustion gas exhaust gas glass fiber filter felt it is main into
Divide the solid content of binding agent.Determining standard is drawing force, solvent resistance and the flexibility of the combustion gas exhaust gas glass fiber filter felt.
The solid content of the acrylic acid glue is diluted to 40%~45%；It stirs evenly in a kettle.
It is demonstrated experimentally that after the solid content of the acrylic acid glue is diluted to more than 40%, combustion gas exhaust gas glass fiber filter felt
Drawing force, solvent resistance and flexibility be satisfied by technology requirement.But when the solid content of the acrylic acid glue is diluted to 50%
After above, production cost amplification is larger, and machine utilization increases, and technique controlling difficulty is big, therefore does not choose solid content in the present invention and be
More than 50% technical solution.
By multiple experiment, the solid content of acrylic acid glue is finally determined.
The detection data such as following table of combustion gas exhaust gas glass fiber filter felt that the present invention obtains：
After tested, drawing force of the invention is more than 300N/50mm, and resistance to temperature is 330 DEG C, and style-ability meets client
The requirement of subsequent machining technology.After user processes, using in the Gas Pipe of coal boiler, it can administer in exhaust gas
Nitrogen oxides and sulfur dioxide.
The combustion gas exhaust gas glass fiber filter felt that the present invention obtains, it is smooth in corrugating, plasticity is good, continuous production
It is good, see Fig. 1.And by the prior art produce low-grade combustion gas exhaust gas glass fiber filter felt in corrugating process because temperature tolerance is poor
Drawing force is relatively low cracked, can not meet the process conditions of corrugating, and the fracture of corrugating large area is caused to lead to not
Continuous production.See Fig. 2, Fig. 3.The drawing force of shown low-grade combustion gas exhaust gas glass fiber filter felt is only 160~200N/50mm.
Description of the drawings
Fig. 1 is the obtained combustion gas exhaust gas glass fiber filter felt of the present invention, smooth in corrugating, plasticity is good, production connects
Continuous property is good.
Fig. 2 is the ripple of certain specification of domestic low-grade combustion gas exhaust gas glass fiber filter felt compacting.
Fig. 3 is the ripple of another specification of domestic low-grade combustion gas exhaust gas glass fiber filter felt compacting.
The flow chart of Fig. 4 positions present invention.
Specific embodiment
The present invention is a kind of method for making combustion gas exhaust gas filter felt.The combustion gas exhaust gas filter felt uses glass fibre
Be chopped silk, and by paper technology randomness, uniformly arrangement overlaps, and by drenching glue, taking out the works such as glue, baking and curing
Glass fibre is bonded together by skill.Glass fibre is chopped silk for alkali-free glass fibre, a diameter of 10 μm of ± 1um, and length is
12mm±1mm；The acrylic acid glue of the binding agent white emulsus common for market.
The present invention detailed process be：
Step 1：Prepare thickener；
Commercially available hydroxyethyl cellulose is selected, is stirred 18~20 hours in addition deionized water and is configured to thickener, it is described
The weight ratio of hydroxyethyl cellulose and water is 20：100.20~25 tons of thickener is needed to configure altogether.
Step 2：Plain boiled water is configured；
Obtain 20~25 tons of thickeners are added in 80~85 tons of deionized waters, obtain 100~110 tons of viscosity as 7cp
The plain boiled water of~9cp.
Step 3：Prepare binding agent；
Commercially available acrylic acid glue is selected, adds in deionized water wherein, the solid content of the acrylic acid glue is diluted
To 40%~45%；The percentage is weight percentage.It stirs evenly in a kettle.
Step 4：Alkali-free glass fibre is chopped the dispersion of silk；
Select a diameter of 10 μm ± 1 μm, the alkali-free glass fibre that length is 12mm ± 1mm is chopped silk.By alkali-free glass fibre
Dimension is chopped after silk addition blanking bin, and stirring point in plain boiled water is added in the blanking velocity of 5~7kg per minute by scale conveyer
It dissipates.Obtain slurry.
Step 5：The molding dehydration of slurry；
The slurry stirred evenly by molding machine is dehydrated, the silk that is chopped of the alkali-free glass fibre in slurry is made uniformly to be coated with
On forming net, non-woven fabrics is obtained.Start the suction system of molding machine, the non-woven fabrics being uniformly coated on forming net is aspirated
Dehydration, makes the water content of the non-woven fabrics be down to less than 5%；The percentage is weight percentage.
Step 6：It drenches glue, take out glue；
Prepared binding agent by steeping vat is uniformly drenched to the upper surface for being added in non-woven fabrics, and adds leaching by suction
Binding agent in the upper surface of non-woven fabrics penetrates non-woven fabrics, while extra glue is drawn back recycling；Make the non-woven fabrics
Gel content is 10~20%；The percentage is weight percentage.Obtain the non-woven fabrics through filtering glue.
Step 7：Drying；
It will obtain being delivered to drying oven drying by mesh bag through filtering the non-woven fabrics of glue.The drying course of drying oven is divided into four
The temperature of grade, wherein level Four drying respectively is 150 DEG C, 180 DEG C, 200 DEG C, 250 DEG C.Drying in the first order and the second level
In the process, make the non-woven fabrics drying and dewatering；In the drying course of the third level and the fourth stage, consolidate the non-woven fabrics binding agent
Change, obtain combustion gas exhaust gas filter felt.It winds spare.
The present invention will illustrate its technical solution by 3 embodiments.The preparation process of each embodiment is identical, difference
The parameter being in each embodiment.
The preparation parameter of each embodiment see the table below：
Claims (5)
- A kind of 1. method for making combustion gas exhaust gas filter felt, which is characterized in that detailed process is：Step 1：Prepare thickener；Step 2：Plain boiled water is configured；Step 3：Prepare binding agent：Commercially available acrylic acid glue is selected, adds in deionized water wherein, the solid content of the acrylic acid glue is diluted to 40%~45%；It stirs evenly in a kettle；Step 4：Alkali-free glass fibre is chopped the dispersion of silk：Alkali-free glass fibre is chopped silk by scale conveyer to be stirred in the blanking velocity addition plain boiled water of 5~7kg per minute Dispersion；Obtain slurry；Step 5：The molding dehydration of slurry：Obtained slurry machine is dehydrated, the silk that is chopped of the alkali-free glass fibre in slurry is made uniformly to be coated on forming net, obtains nothing Woven fabric；Start the suction system of molding machine, suction dehydration is carried out to the non-woven fabrics being uniformly coated on forming net, makes the nonwoven The water content of cloth is down to less than 5%；Step 6：It drenches glue, take out glue：Prepared binding agent by steeping vat is uniformly drenched to the upper surface for being added in non-woven fabrics, and leaching is made to be added in nothing by suction The binding agent of the upper surface of woven fabric penetrates non-woven fabrics, while extra glue is drawn back recycling；The gel content of the non-woven fabrics It is 10~20%；Obtain the non-woven fabrics through filtering glue；Step 7：Drying：The obtained non-woven fabrics through filtering glue is delivered to drying oven and carries out level Four drying；Drying in the first order and the second level Cheng Zhong makes the non-woven fabrics drying and dewatering；In the drying course of the third level and the fourth stage, consolidate the non-woven fabrics binding agent Change, obtain combustion gas exhaust gas filter felt；It winds spare.
- 2. as described in claim 1 make combustion gas exhaust gas filter felt method, which is characterized in that the preparation thickener be by Hydroxyethyl cellulose is added in deionized water to stir 18~20 hours and is formulated；The weight ratio of the hydroxyethyl cellulose and water It is 20：100.
- 3. make the method for combustion gas exhaust gas filter felt as described in claim 1, which is characterized in that Dun configuration plain boiled water be by with The thickener of system is added in 80~85 tons of deionized waters, obtains the plain boiled water that 100~110 tons of viscosity are 7cp~9cp.
- 4. the method for combustion gas exhaust gas filter felt is made as described in claim 1, which is characterized in that the alkali-free glass fibre is short A diameter of 10 μm ± 1 μm of chopping, length are 12mm ± 1mm.
- 5. make the method for combustion gas exhaust gas filter felt as described in claim 1, which is characterized in that the temperature of level Four drying according to Secondary is respectively 150 DEG C, 180 DEG C, 200 DEG C and 250 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426183.3A CN108144367A (en) | 2017-12-26 | 2017-12-26 | A kind of method for making combustion gas exhaust gas filter felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426183.3A CN108144367A (en) | 2017-12-26 | 2017-12-26 | A kind of method for making combustion gas exhaust gas filter felt |
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| Publication Number | Publication Date |
|---|---|
| CN108144367A true CN108144367A (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711426183.3A Pending CN108144367A (en) | 2017-12-26 | 2017-12-26 | A kind of method for making combustion gas exhaust gas filter felt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109011843A (en) * | 2018-08-24 | 2018-12-18 | 刘洪亮 | Multidimensional special type filter material |
| CN112663398A (en) * | 2020-12-23 | 2021-04-16 | 西安爱德乐环保科技有限公司 | Flexible glass fiber paper and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1515723A (en) * | 2003-08-24 | 2004-07-28 | 樊福定 | Preparation method of glass fiber thin felt |
| EP1552871A1 (en) * | 2002-10-16 | 2005-07-13 | Hokuetsu Paper Mills, Ltd. | Air purification filter and process for producing the same |
| CN103290933A (en) * | 2013-07-01 | 2013-09-11 | 中材金晶玻纤有限公司 | Glass fiber mat special for insulation board and production method thereof |
| CN103746088A (en) * | 2014-01-16 | 2014-04-23 | 常州中新天马玻璃纤维制品有限公司 | High-water-absorption fiber glass storage battery felt and preparation method thereof |
| CN104088198A (en) * | 2013-03-24 | 2014-10-08 | 苏州维艾普新材料股份有限公司 | High-strength glass fiber-made air-filter paper and preparation method thereof |
-
2017
- 2017-12-26 CN CN201711426183.3A patent/CN108144367A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1552871A1 (en) * | 2002-10-16 | 2005-07-13 | Hokuetsu Paper Mills, Ltd. | Air purification filter and process for producing the same |
| CN1515723A (en) * | 2003-08-24 | 2004-07-28 | 樊福定 | Preparation method of glass fiber thin felt |
| CN104088198A (en) * | 2013-03-24 | 2014-10-08 | 苏州维艾普新材料股份有限公司 | High-strength glass fiber-made air-filter paper and preparation method thereof |
| CN103290933A (en) * | 2013-07-01 | 2013-09-11 | 中材金晶玻纤有限公司 | Glass fiber mat special for insulation board and production method thereof |
| CN103746088A (en) * | 2014-01-16 | 2014-04-23 | 常州中新天马玻璃纤维制品有限公司 | High-water-absorption fiber glass storage battery felt and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109011843A (en) * | 2018-08-24 | 2018-12-18 | 刘洪亮 | Multidimensional special type filter material |
| CN112663398A (en) * | 2020-12-23 | 2021-04-16 | 西安爱德乐环保科技有限公司 | Flexible glass fiber paper and preparation method thereof |
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Application publication date: 20180612 |