CN103541279B - A kind of high dust containing capacity glass fibre air filter paper and production technology - Google Patents
A kind of high dust containing capacity glass fibre air filter paper and production technology Download PDFInfo
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Abstract
The invention discloses a kind of the alkali-free glass fibre cotton and the bonding sizing material that are 0.3-0.4 μ m by the short chopping of alkali-free glass fibre and diameter and make high dust containing capacity glass fibre air filter paper, wherein the mass parts of the short chopping of alkali-free glass fibre is 3-8 part, the mass parts of alkali-free glass fibre cotton is 92-97 part, the hydrophober that bonding sizing material is fluorine-containing carbon, the invention also discloses the technique of producing high dust containing capacity glass fibre air filter paper, first making beating disperses raw material to obtain slurry, then adopt wet moulding slurry to obtain l Water Paper and remove the moisture content in l Water Paper, the l Water Paper two sides applying glue of then dewatering, final drying obtains product, while wherein making beating, beating degree is 52-56 ° of SR, suction dehydration is carried out in three stages, dry processing is carried out in four stages. glass fibre air filter paper of the present invention surfacing is even, and specific area and dust containing capacity are large, and mechanical strength is high, acid-alkali-corrosive-resisting.
Description
Technical field
The invention belongs to field of air filtration, relate to a kind of air filter module, particularly a kind of high dust containing capacity glassFiber air filter paper and the technique of producing this high dust containing capacity glass fibre air filter paper.
Background technology
The application of air cleaner is very extensive, but now widely used air cleaner all exist dust containing capacity low, makeShort with the life-span, the shortcoming of replacing program trouble, is filtrations of filter filter paper used and cause the main cause of the problems referred to abovePoor-performing, dust containing capacity is low. Glass fibre air filter paper is taking glass fibre as main raw material(s), generally adopts wet mouldingTechnique is made, and it has the features such as fiber is evenly distributed, resistance is little, intensity is large, is a kind of desirable air filting material. ButThat common glass fibre air filter paper also exists dust containing capacity low, the shortcoming that service life is short.
Summary of the invention
In view of this, the invention provides and a kind ofly there is the glass fibre air filter paper of high dust containing capacity and produce this glass fibersDimension air filter paper technique.
For achieving the above object, the invention provides following technical scheme: high dust containing capacity glass fibre air mistake of the present inventionAlkali-free glass fibre cotton and bonding sizing material that filter paper is 0.3-0.4 μ m by the short chopping of alkali-free glass fibre and diameter are made.
Further, in described high dust containing capacity glass fibre air filter paper, the mass parts of the short chopping of alkali-free glass fibre is 3-8 parts, the mass parts of alkali-free glass fibre cotton is 92-97 part.
Further, the hydrophober that described bonding sizing material is fluorine-containing carbon.
The present invention produces the technique of high dust containing capacity glass fibre air filter paper, comprises the following steps:
(1) raw material is prepared: get respectively the short chopping of 3-8 part alkali-free glass fibre and 92-97 part alkali-free glass fibre cotton;
(2) disperse slurrying: add making beating in disperser to disperse to obtain slurry the selected raw material of step (1), regulate slurryPH value be 2.9-3.2, and to regulate stock quality concentration be 1%～1.5%;
(3) wet moulding: pass on step (2) gained slurry to storage pool, being diluted to mass concentration is 0.1%～0.15%And regulate pH to 2.8～3, then the slurry of storage pool is delivered to moulding on former and obtains l Water Paper;
(4) suction dehydration: step (3) gained l Water Paper is carried out to processed, make moisture percentage be less than 40%;
(5) spraying sizing material: the l Water Paper after the dehydration of step (4) gained is carried out to two-sided applying glue processing;
(6) dry processing: the l Water Paper after dry treatment step (5) glue spraying.
Further, when described step (2) is disperseed slurrying, beating degree is 54 ° of SR.
Further, the short chopping of described alkali-free glass fibre is adopted with the following method and is made: first e-glass marble is heated to1600～1800 DEG C of meltings, the melting e-glass marble of then jetting obtains glass fibre, finally cuts gained glass fibre and get final productThe short chopping that length is consistent.
Further, described step (4) suction dehydration is carried out in three stages, and the vacuum of first stage is 0.02MPa, and secondThe vacuum in stage is 0.03MPa, and the vacuum of phase III is 0.07MPa.
Further, the dry processing of described step (6) is carried out in four stages, and temperature when first paragraph is dry is 250 DEG C, and secondTemperature when section is dry is 280 DEG C, and the 3rd section of temperature when dry is 260 DEG C, and the 4th section of employing drying cylinder makes final the containing of productWater rate is lower than 0.1%.
Beneficial effect of the present invention is: (1) glass fibre air filter paper of the present invention main body adopts the short chopping of alkali-freeWith alkali-free glass fibre cotton, its mechanical strength is good, stable chemical performance, and water imbibition is low, is applicable to varying environment; (2) the present inventionMiddle alkali-free glass fibre diameter is 0.3-0.4 μ m, and its specific area is large, and the dust containing capacity of obtained filter paper is large; (3) sticky in the present inventionGum deposit material is selected the hydrophober of fluorine-containing carbon, and fluorine-containing carbon hydrophober good penetrability is gathered in the Nodes of fiber when use, and notForm glued membrane, do not affect the gas permeability of obtained filter paper; (4) the present invention selects the short chopping of alkali-free glass fibre and alkali-free glass fibreVinylon and cotton blend ratio is suitable, can be good at dispersedly in water, realizes good combination between fiber and interweaves, prepared skyGas filter paper is fluffy, porosity is high, has further increased the dust containing capacity of product; (5) the dry processing of production technology of the present invention divides fourDuan Jinhang shrinks evenly product by controlling temperature in dry run; (6) production technology wet moulding of the present invention starching is denseSpend lowly, the humidity of l Water Paper is less than 40% before applying glue, can guarantee the glass fibre air filter paper surfacing that makes and evenlyProperty.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1:
The present embodiment is produced the technique of high dust containing capacity glass fibre air filter paper, comprises the following steps:
(1) raw material is prepared: get respectively 5 parts of short choppings of alkali-free glass fibre and 95 parts of alkali-free glass fibres that diameter is 0.3 μ mVinylon and cotton blend;
(2) disperse slurrying: add making beating in the disperser that aqueous sulfuric acid is housed to disperse the selected raw material of step (1)12min obtains slurry, then regulates the pH value to 3.0 of slurry by the amount of adjusting sulfuric acid and water, mass concentration to 1%, this realityExecute 54 ° of SR of beating degree in example.
(3) wet moulding: pass on step (2) gained slurry to storage pool, be diluted with water to mass concentration and be 0.1% and adjustJoint pH to 2.9, the slag inclusion in the slurry of then going out after dilution with centrifugal slag remover, is finally delivered to the slurry of storage pool tiltedlyOn net former, moulding obtains l Water Paper; In order to ensure that filter paper will keep uniformity, the stability, consistent of thickness when the mouldingProperty, when the present embodiment moulding, adopt low concentration starching.
(4) suction dehydration: step (3) gained l Water Paper is carried out to processed, make moisture percentage be less than 40%; In order to ensure filterPaper will keep uniformity, stability, the uniformity of thickness in the time of moulding, and the present embodiment adopts the vacuum draw dehydration of three stages,The main purpose of first stage is slight dehydration, and vacuum is 0.02MPa, and the main purpose of second stage is to ensure that waterline is not beneficialLong, the uniformity of guarantee filter paper outward appearance, the water yield of suction reaches 40%, and therefore vacuum is 0.03MPa, and the phase III is mainBe to control the humidity that enters drying room to be less than 40%, so need larger suction force, vacuum is 0.07MPa.
(5) spraying sizing material: the l Water Paper after the dehydration of step (4) gained is carried out to two-sided applying glue processing; The present embodiment adopts willThe l Water Paper of step (4) passes through the method applying glue of steeping vat, and makes sizing material spread upon uniformly filter paper table by controlling l Water Paper speedFace, the hydrophober that the present embodiment institute applying glue material is fluorine-containing carbon.
(6) dry processing: the l Water Paper after baking step (5) glue spraying, in order fully to improve the utilization rate of heat, the present embodimentIn drying room length used be 32-36 rice, points three sections are dried, first paragraph baking temperature is 250 DEG C, this stage is because l Water Paper is firmEnter drying room, humidity is too high, does not carry out entirety circulation, is only limited to the inner loop of first paragraph, constantly supplements new thermal source, row simultaneouslyExcept 40～60% moisture; The temperature of second segment is 280 DEG C, and the temperature of the 3rd section is 260 DEG C, and second stage and phase III are allAdopt complete alternation, and supplement new thermal source at any time. After above-mentioned three stages, be also provided with drying cylinder, filter paper is dried and is bleached.
In the present embodiment, drying room adopts direct-fired method, the filter paper of drying room inside is carried out to tow sides simultaneously and doesDry, filter paper goes out drying room and only needs 3～5 minutes to drying from entering drying room, and the humidity of filter paper drops to 0.1% from 99.9%.
Embodiment 2:
The present embodiment is produced the technique of high dust containing capacity glass fibre air filter paper, comprises the following steps:
(1) raw material is prepared: get respectively 3 parts of short choppings of alkali-free glass fibre and 97 parts of alkali-free glass fibres that diameter is 0.35 μ mVinylon and cotton blend;
(2) disperse slurrying: add making beating in the disperser that aqueous sulfuric acid is housed to disperse the selected raw material of step (1)10min obtains slurry, then regulates the pH value to 3.2 of slurry by the amount of adjusting sulfuric acid and water, mass concentration to 1.3%, this52 ° of SR of beating degree in embodiment.
(3) wet moulding: pass on step (2) gained slurry to storage pool, be diluted with water to mass concentration and be 0.13% alsoRegulate pH to 3.0, the slag inclusion in the slurry of then going out after dilution with centrifugal slag remover, is finally delivered to the slurry of storage poolTiltedly on net former, moulding obtains l Water Paper; In order to ensure that filter paper will keep uniformity, the stability, consistent of thickness when the mouldingProperty, when the present embodiment moulding, adopt low concentration starching.
(4) suction dehydration: step (3) gained l Water Paper is carried out to processed, make moisture percentage be less than 40%; In order to ensure filterPaper will keep uniformity, stability, the uniformity of thickness in the time of moulding, and the present embodiment adopts the vacuum draw dehydration of three stages,The main purpose of first stage is slight dehydration, and vacuum is 0.02MPa, and the main purpose of second stage is to ensure that waterline is not beneficialLong, the uniformity of guarantee filter paper outward appearance, the water yield of suction reaches 40%, and therefore vacuum is 0.03MPa, and the phase III is mainBe to control the humidity that enters drying room to be less than 40%, so need larger suction force, vacuum is 0.07MPa.
(5) spraying sizing material: the l Water Paper after the dehydration of step (4) gained is carried out to two-sided applying glue processing; The present embodiment adopts willThe l Water Paper of step (4) passes through the method applying glue of steeping vat, and makes sizing material spread upon uniformly filter paper table by controlling l Water Paper speedFace.
(6) dry processing: the l Water Paper after baking step (5) glue spraying, in order fully to improve the utilization rate of heat, the present embodimentIn drying room length used be 32-36 rice, points three sections are dried, first paragraph baking temperature is 250 DEG C, this stage is because l Water Paper is firmEnter drying room, humidity is too high, does not carry out entirety circulation, is only limited to the inner loop of first paragraph, constantly supplements new thermal source, row simultaneouslyExcept 40～60% moisture; The temperature of second segment is 280 DEG C, and the temperature of the 3rd section is 260 DEG C, and second stage and phase III are allAdopt complete alternation, and supplement new thermal source at any time. After above-mentioned three stages, be also provided with drying cylinder, filter paper is dried and is bleached.In the present embodiment, drying room adopts direct-fired method, the filter paper of drying room inside is carried out to tow sides dry simultaneously, filter paper fromEnter drying room and go out drying room and only need 3～5 minutes after drying, and the humidity of filter paper drops to 0.1% from 99.9%.
Embodiment 3:
The present embodiment is produced the technique of high dust containing capacity glass fibre air filter paper, comprises the following steps:
(1) raw material is prepared: get respectively 7 parts of short choppings of alkali-free glass fibre and 93 parts of alkali-free glass fibres that diameter is 0.4 μ mVinylon and cotton blend;
(2) disperse slurrying: add making beating in the disperser that aqueous sulfuric acid is housed to disperse the selected raw material of step (1)15min obtains slurry, then regulates the pH value to 2.9 of slurry by the amount of adjusting sulfuric acid and water, mass concentration to 1.5%, this56 ° of SR of beating degree in embodiment.
(3) wet moulding: pass on step (2) gained slurry to storage pool, be diluted with water to mass concentration and be 0.15% alsoRegulate pH to 2.8, the slag inclusion in the slurry of then going out after dilution with centrifugal slag remover, is finally delivered to the slurry of storage poolTiltedly on net former, moulding obtains l Water Paper; In order to ensure that filter paper will keep uniformity, the stability, consistent of thickness when the mouldingProperty, when the present embodiment moulding, adopt low concentration starching.
(4) suction dehydration: step (3) gained l Water Paper is carried out to processed, make moisture percentage be less than 40%; In order to ensure filterPaper will keep uniformity, stability, the uniformity of thickness in the time of moulding, and the present embodiment adopts the vacuum draw dehydration of three stages,The main purpose of first stage is slight dehydration, and vacuum is 0.02MPa, and the main purpose of second stage is to ensure that waterline is not beneficialLong, the uniformity of guarantee filter paper outward appearance, the water yield of suction reaches 40%, and therefore vacuum is 0.03MPa, and the phase III is mainBe to control the humidity that enters drying room to be less than 40%, so need larger suction force, vacuum is 0.07MPa.
(5) spraying sizing material: the l Water Paper after the dehydration of step (4) gained is carried out to two-sided applying glue processing; The present embodiment adopts willThe l Water Paper of step (4) passes through the method applying glue of steeping vat, and makes sizing material spread upon uniformly filter paper table by controlling l Water Paper speedFace.
(6) dry processing: the l Water Paper after baking step (5) glue spraying, in order fully to improve the utilization rate of heat, the present embodimentIn drying room length used be 32-36 rice, points three sections are dried, first paragraph baking temperature is 250 DEG C, this stage is because l Water Paper is firmEnter drying room, humidity is too high, does not carry out entirety circulation, is only limited to the inner loop of first paragraph, constantly supplements new thermal source, row simultaneouslyExcept 40～60% moisture; The temperature of second segment is 280 DEG C, and the temperature of the 3rd section is 260 DEG C, and second stage and phase III are allAdopt complete alternation, and supplement new thermal source at any time. After above-mentioned three stages, be also provided with drying cylinder, so that filter paper color is bleached.In the present embodiment, drying room adopts direct-fired method, the filter paper of drying room inside is carried out to tow sides dry simultaneously, filter paper fromEnter drying room and go out drying room and only need 3～5 minutes after drying, and the humidity of filter paper drops to 0.1% from 99.9%.
Comparative example 1:
The difference of the present embodiment and documents 1 is, what when the present embodiment Raw is prepared, choose is 5 parts of alkali-free glasssThe short chopping of fiber and 95 parts of medium-alkali glass fibre cottons that diameter is 0.3 μ m; Other processing steps are identical with technological parameter.
Comparative example 2:
The difference of the present embodiment and documents 1 is, what when the present embodiment Raw is prepared, choose is 5 parts of alkali-free glasssThe short chopping of fiber and 95 parts of high alkali glass fibre cottons that diameter is 0.3 μ m; Other processing steps are identical with technological parameter.
Performance test:
Get the glass fibre air filter paper that embodiment 1, comparative example 1 and comparative example 2 make and carry out air mistakeFilter performance test, result is as shown in table 1:
Table 1 different glass fiber air filter paper performance comparison
| Embodiment | Specific area m2/g | Intensity N/m | Moisture percentage % | Adsorbance ml/g |
| Embodiment 1 | 3.08 | 1266 | 0.1 | 1.09 |
| Embodiment 2 | 1.21 | 1065 | 0.2 | 0.42 |
| Embodiment 3 | 1.03 | 1000 | 0.25 | 0.36 |
Data by table 1 can be found out: the specific area of the cotton air filter paper of the embodiment short chopping of 1 alkali-free and alkali-free glassDoubly, and its intensity is high for the 2-3 that is about embodiment 2,3 with adsorbance, and moisture percentage is low.
Finally explanation, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although logicalCross above preferred embodiment and the present invention is described in detail, but it will be appreciated by those skilled in the art that can beIt is made to various changes in form and in details, and do not depart from the claims in the present invention book limited range.
Claims (6)
1. a high dust containing capacity glass fibre air filter paper, is characterized in that: the air filtration of described high dust containing capacity glass fibreAlkali-free glass fibre cotton and bonding sizing material that paper is 0.3-0.4 μ m by the short chopping of alkali-free glass fibre and diameter are made; Wherein, heightDust containing capacity glass fibre air filter paper is 3-8 part containing the mass parts of the short chopping of alkali-free glass fibre, alkali-free glass fibre cottonMass parts is 92-97 part, the hydrophober that described bonding sizing material is fluorine-containing carbon;
The technique of described high dust containing capacity glass fibre air filter paper, comprises the following steps:
(1) raw material is prepared: get respectively the short chopping of 3-8 part alkali-free glass fibre and 92-97 part alkali-free glass fibre cotton;
(2) disperse slurrying: add making beating in disperser to disperse to obtain slurry the selected raw material of step (1), regulate the pH of slurryValue is for 2.9-3.2, and to regulate stock quality concentration be 1% ~ 1.5%;
(3) wet moulding: pass on step (2) gained slurry to storage pool, being diluted to mass concentration is 0.1% ~ 0.15% also adjustingPH to 2.8 ~ 3, are then delivered to moulding on former by the slurry of storage pool and obtain l Water Paper;
(4) suction dehydration: step (3) gained l Water Paper is carried out to processed, make moisture percentage be less than 40%;
(5) spraying sizing material: the l Water Paper after the dehydration of step (4) gained is carried out to two-sided applying glue processing;
(6) dry processing: the l Water Paper after dry treatment step (5) glue spraying.
2. a production technique for high dust containing capacity glass fibre air filter paper as claimed in claim 1, is characterized in that, comprisesFollowing steps:
(1) raw material is prepared: get respectively the short chopping of 3-8 part alkali-free glass fibre and 92-97 part alkali-free glass fibre cotton;
(2) disperse slurrying: add making beating in disperser to disperse to obtain slurry the selected raw material of step (1), regulate the pH of slurryValue is for 2.9-3.2, and to regulate stock quality concentration be 1% ~ 1.5%;
(3) wet moulding: pass on step (2) gained slurry to storage pool, being diluted to mass concentration is 0.1% ~ 0.15% also adjustingPH to 2.8 ~ 3, are then delivered to moulding on former by the slurry of storage pool and obtain l Water Paper;
(4) suction dehydration: step (3) gained l Water Paper is carried out to processed, make moisture percentage be less than 40%;
(5) spraying sizing material: the l Water Paper after the dehydration of step (4) gained is carried out to two-sided applying glue processing;
(6) dry processing: the l Water Paper after dry treatment step (5) glue spraying.
3. the technique of producing according to claim 2 high dust containing capacity glass fibre air filter paper, is characterized in that: described stepSuddenly when (2) disperse slurrying, beating degree is 52-560SR。
4. the technique of producing according to claim 2 high dust containing capacity glass fibre air filter paper, is characterized in that, described nothingThe short chopping of alkali containing glass fibre is adopted with the following method and is made: first e-glass marble is heated to 1600 ~ 1800 DEG C of meltings, then sprayBlow and fuse and melt e-glass marble and obtain glass fibre, finally cut gained glass fibre and obtain the short chopping that length is consistent.
5. the technique of producing according to claim 2 high dust containing capacity glass fibre air filter paper, is characterized in that: described stepSuddenly (4) suction dehydration is carried out in three stages, and the vacuum of first stage is 0.02MPa, and the vacuum of second stage is 0.03MPa, the vacuum of phase III is 0.07MPa.
6. according to the technique of producing high dust containing capacity glass fibre air filter paper described in claim 2-5 any one, its featureBe: the dry processing of described step (6) is carried out in four stages, and temperature when first paragraph is dry is 250 DEG C, when second segment is dryTemperature is 280 DEG C, and the 3rd section of temperature when dry is 260 DEG C, and the 4th section adopts cylinder dried to make the final moisture content of product lowIn 0.1%.
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| JP2834502B2 (en) * | 1989-11-30 | 1998-12-09 | 三菱製紙株式会社 | Manufacturing method of glass fiber paper |
| CN103031781B (en) * | 2012-11-19 | 2015-02-25 | 中材科技股份有限公司 | Preparation method of glass fiber air filter paper with low solid phase ratio |
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| CN103277631B (en) * | 2013-05-31 | 2015-11-11 | 重庆再升科技股份有限公司 | A kind of glass-fiber vacuum insulation panel nano core material and preparation method thereof |
| CN103243612B (en) * | 2013-05-31 | 2015-07-15 | 重庆再升科技股份有限公司 | Highly-resistant-to-water core-level glass fiber air filtering paper and preparing method |
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