CN110126399A - It is a kind of applied to electric power and the high temperature resistance filtration material of asphalt mixing and preparation method thereof - Google Patents

It is a kind of applied to electric power and the high temperature resistance filtration material of asphalt mixing and preparation method thereof Download PDF

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Publication number
CN110126399A
CN110126399A CN201810130513.2A CN201810130513A CN110126399A CN 110126399 A CN110126399 A CN 110126399A CN 201810130513 A CN201810130513 A CN 201810130513A CN 110126399 A CN110126399 A CN 110126399A
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China
Prior art keywords
fiber
layer
fibrous layer
high temperature
electric power
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Inventor
陈晟晖
王锋华
张光旭
吴佳
刘鹏
谢灵娇
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Shanghai Tanlon Fiber Co Ltd
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Shanghai Tanlon Fiber Co Ltd
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Priority to CN201810130513.2A priority Critical patent/CN110126399A/en
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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
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/008—Sewing, stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention discloses a kind of high temperature resistance filtration materials applied to electric power and asphalt mixing, sequentially include the first fibrous layer, high-precision filter layer, the second fibrous layer.The present invention also provides preparation methods.High temperature resistance filtration material of the invention can intercept dust, and filtering accuracy is high, and air permeability is high, it is possible to reduce power consumption and wash number realize energy conservation and environmental protection.

Description

It is a kind of applied to electric power and the high temperature resistance filtration material of asphalt mixing and preparation method thereof
Technical field
The invention belongs to technical field of industrial dust removal.It is related to a kind of filtering material, is applied to electric power more particularly, to one kind With the high temperature resistance filtration material of asphalt mixing.
Background technique
Primary energy structure of the China based on coal determines that thermal power generation is the main electric power production method in China, fire Power power generation accounts for about 70% or more of national power generation total amount, and within quite long one period from now on, thermal power generation all will be The major way of China's power generation.The flue dust of power plant emission is the main source of atmospheric pollution in China, controls thermal power plant's flue dust Discharge is one of the important measures preserved the ecological environment.
Thermal Power Enterprises original executes 50mg/m as defined in " fossil-fuel power plant atmospheric pollutant emission standard " (GB13223-2003)3Row Put limit value.In July, 2011, Environmental Protection Department, State General Administration for Quality Supervision promulgate new " fossil-fuel power plant atmospheric pollutant emission standard " (GB13223-2011), which has further tightened soot emissions limit value, and wherein coal-fired power plant, fuel oil consump-tion execute 30mg/m3Concentration of emission limit value (existing thermal power plant executed from July 1st, 2014, created thermal power plant from January 1st, 2012 Rise and execute), key area is according to 20mg/m3It executes.
China's Thermal Power Generation Industry is former mainly to use electrostatic dust collection equipment, with the raising of discharge standard, using sack cleaner Thermal power plant it is increasing, especially newly-built large thermal power plant has significant raising to the use ratio of sack cleaner, former There is fired power generating unit then to use the form of " electricity changes bag " that electrostatic dust collection equipment is changed to bag-type dust collecting equipment, bag-type dust collecting equipment will be at For the main selection of China's thermal power industry flue gas ash removal.
Pitch needs to heat in use, generates a large amount of bitumen flue gas therefrom.Bitumen flue gas component is extremely multiple It is miscellaneous, it is different and different with asphalt source.The solid and liquid particle that existing pitch volatile component condenses into bitumen flue gas, and have steaming The organic matter of gaseity, partial organic substances are high molecular polymers, can cause seriously to pollute to environment.Containing there are many have in flue gas Machine object, including carbocyclic ring hydrocarbon, cyclic hydrocarbon derivative and other compounds have much to the harmful effect of health of human body, and glance coal contains A variety of multiring aromatic hydrocarbon substances such as BaP, benzanthracene, carbazole, and be carcinogenic and strong carcinogen mostly, partial size mostly 0.1~ It is only 0.01 μm the smallest between 1.0 μm (its purification treatment is exactly to capture these small particles as much as possible), it is maximum about It is 10.0 μm, is especially a variety of carcinogens of representative with 3,4- BaP.Its main path being detrimental to health is attached On 8 μm of floating dusts below, by respiratory tract by suction human body.Therefore, purification treatment is carried out to bitumen flue gas, keeps discharge full Sufficient atmospheric environmental standards, are very important.
In recent years, haze weather generation so that broad masses to air pollution problems inherent growing interest and new environmental law Increasingly strict trend, common Nomex filtrate cannot fully meet be increasingly stringenter industrial tail gas discharge mark It is quasi-.
Currently, the coated filter material of most common more high filtering precision, and short (coated filter material actually makes there are service life Often there is the case where demoulding in and coated filter material caused to fail), windage is high, and (micropore that coated filter material relies primarily on film intercepts Dust, filtering accuracy is higher, and micropore is smaller, and resistance is bigger) the defects of.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by the invention is to provide a kind of sound construction, The filtrate of filtration efficiency, low filtering windage, is particularly suitable for electric power and asphalt mixing.
The present invention provides a kind of high temperature resistance filtration materials applied to electric power and asphalt mixing.High temperature resistance filtration material of the invention, Dust can be intercepted, filtering accuracy is high, and air permeability is high, it is possible to reduce power consumption and wash number realize energy conservation and environmental protection.
The high temperature resistance filtration material applied to electric power and asphalt mixing, sequentially include the first fibrous layer, high-precision filter layer, Second fibrous layer.
Preferably, first fibrous layer, the second fibrous layer are each independently by one or more fibers chosen from the followings It is prepared: PSA fiber, PPS fiber, polyester fiber, aramid fiber 1313, PTFE fiber.Preferably, the line density of fiber is 2.22dtex~3.33dtex.
As a kind of perferred technical scheme, first fibrous layer is PPS fiber, the line density 2.22dtex of fiber~ 3.33dtex；Second fibrous layer is PPS fiber, line density 2.22dtex~3.33dtex of fiber.
As a kind of preferred technical solution, first fibrous layer is that PSA fiber and aramid fiber 1313 press quality The fibrous layer more blended than 1:5~5:1；Second fibrous layer is that PSA fiber and 1313 fibers 1:5~5:1 in mass ratio are blended Fibrous layer.
As a kind of preferred technical solution, first fibrous layer is PSA fiber and PPS fiber 1:5 in mass ratio ~5:1 blended fibrous layer；Second fibrous layer is PSA fiber and PPS fiber 1:5~5:1 in mass ratio blended fiber Layer.
Preferably, the grammes per square metre of first fibrous layer is 80~200g/m2；The grammes per square metre of the high-precision filter layer be 60~ 140g/m2；The grammes per square metre of second fibrous layer is 180~300g/m2；
It is highly preferred that the grammes per square metre of first fibrous layer is 120~160g/m2；The grammes per square metre of the high-precision filter layer is 80 ~110g/m2；The grammes per square metre of second fibrous layer is 200~240g/m2。
Preferably, the high-precision filter layer is melamine meltblown fibers felt, more preferably smartMELAMINE fiber Felt.
SmartMELAMINE fibrofelt is product (introduction of the product and the purchase chain of German Smart Polymer company It is connected in http://www.smartmelamine.com/), it is the small staple fiber of melamine by diameter at 0.3~2 μm Solid netted felt made of (smartMELAMINE fiber), more specific preparation method include the following steps: that (1) is sharp first With the fusing point of the etherified melamine polyimide resin feature low relative to melamine, heating melting etherified melamine polyimide resin (such as first Etherified melamine polyimide resin), the production technology of melt-blown is reapplied, the etherified melamine polyimide resin of melting is sprayed through melt-blown hole high speed Out, the fusant of ejection forms the felted deposit of threadiness, i.e. etherified melamine amine through air cooled and solidified in transmission network Meltblown layer generates the thickness and grammes per square metre of fiber by the pressure of spray orifice and the speed control of transmission network；(2) by spraying hydrochloric acid, Etherified melamine amine meltblown layer is transformed into melamine meltblown layer；(3) formaldehyde of chemical reaction production is taken away by hot wind And methyl ether, using 300 DEG C or so of thermal finalization, winding forms melamine fiber felt, i.e. smartMELAMINE fibrofelt. SmartMELAMINE fibrofelt cannot not have the characteristics that moltenly, is fire retardant, high voidage.In the prior art, smartMELAMINE fiber Felt is applied to the fields such as clothes, household, building, fire-fighting, not be applied to the report of filtering material still.
The diameter 50% of high-precision filtration layer in the present invention, the smartMELAMINE fibrofelt of use, fiber concentrates on 300~600nm, 85% concentrates on 300~1000nm, it is this by Nano grade without several staple fiber groups at carpet veneer, have The characteristics of high-specific surface area, high porosity, can effectively stop, intercepts and adsorb PM2.5 dust particles below, be had Stereochemical structure compared with the film of planar structure in the prior art, can be effectively reduced filtering windage；And it has 345 DEG C or less do not melt Undec feature, be suitable as current hot industry smoke filtration field and use.But this fiber It is all Nano grade that felt, which answers fiber, therefore physical strength is lower, fragile not wear-resisting, is not suitable for being used alone, the present invention passes through With the compound mode of other conventional fibres, it is prepared for meeting the high-precision filter material product of hot industry dedusting application, it is especially suitable High temperature resistance filtration material for electric power and asphalt mixing.
The present invention also provides the preparation method of the high temperature resistance filtration material applied to electric power and asphalt mixing, by described the One fibrous layer, high-precision filter layer, the second fibrous layer pierce compound obtain by spun lacing or needle.
It is further preferred that the high temperature resistance filtration material applied to electric power and asphalt mixing, in second fibrous layer and Also contain a base cloth layer between high-precision filter layer.
Preferably, the base cloth layer is prepared by PPS fiber or PTFE fiber, more preferably PTFE fiber long filament.
The grammes per square metre of the base cloth layer is 65~110g/m2；
The preparation method applied to electric power and the high temperature resistance filtration material of asphalt mixing is, by first fibrous layer, height Smart filter layer, base cloth layer, the second fibrous layer pierce compound obtain by spun lacing or needle.
The present invention provides application of the smartMELAMINE fibrofelt in filtrate preparation, especially in electric power and pitch Application in the high temperature resistance filtration material preparation of stirring.
The utility model has the advantages that the high temperature resistance filtration material of the present invention applied to electric power and asphalt mixing, more efficient to dust catching, Discharge amount is lower；Filtrate wearability is significantly increased；Compared with common membrane bag filter, filtrate air permeability of the invention be can be improved 50% or more.The dust powder Clean after every time of filter material surface attachment can also extend about 1.4 times；To ensure certain breathe freely Power consumption and wash number used in rate are reduced, and energy conservation and environmental protection is realized.When filtrate of the present invention shortens cleaning Between, improve dust catching rate, 10% or more production efficiency can be effectively improved.
Specifically, in the present invention:
The PSA fiber, i.e. polysulphonamide fiber, also known as polysulfonamides fibre, abbreviation PSA fiber, trade name spy pacify synthetic fibre (TANLON).PSA fiber is a kind of aromatic polyamide fibre with special construction, and scientific name is polyphenylsulfone terephthalamide Fiber, by 4,4'- diaminodiphenylsulfone, the condensation polymer of 3,3'- diaminodiphenylsulfones and paraphthaloyl chloride is made the fiber.Virtue Sulfone synthetic fibre fiber is introduced in production to benzene structure and sulfuryl, and amide groups and sulfuryl is made to be connected with each other contraposition phenyl and meta position phenyl Constitute linear macromolecule.Due to there is strong electrophilic sulfuryl group-(SO on macromolecular main chain2)-, is total by the double bond of phenyl ring The effect of gripping significantly reduces the cloud density of nitrogen-atoms on amide groups by the π-conjugated systems of phenyl ring, so having outstanding Heat-resisting, firing resistance, long-term use temperature are 250 DEG C.The experiment proved that the heat resistance of polysulphonamide fiber, Temperature Size are steady Qualitative, chemical resistance, hygroscopicity and dyeability are better.Polysulphonamide fiber material is applied to protective article, high temperature more The fields such as filtering material, rubbed sealing material, electrically insulating material.
The aramid fiber 1313, also known as: Fanglun 1313；polyisophthaloyl metaphenylene diamine fibre；Fanglun 1313, by after m-phenylene diamine (MPD) and m-phthaloyl chloride polycondensation through solution Spinning forms, and feature gas permeability, penetrability are good, heat-resisting quantity, anti-flammability, resistance to most of corrosion.
The PPS fiber, polyphenylene sulfide fibre full name are polyphenylene sulfide fibers, and external product name relies time (Ryton). By polyphenylene sulfide (PPS) using conventional melt spinning method, post-tensioning, curling and cutting system are then carried out at high temperature ?.Its staple fiber performance: 2.65~3.08 lis of ox/dtexs of intensity, elongation 25%~35%, have excellent by 285 DEG C of fusing point Thermal stability and anti-flammability, strength retention is 60% at 34~35,200 DEG C of oxygen index value, and extension at break is unchanged；Chemically-resistant Property is only second to polytetrafluoroethylene (PTFE) (PTFE) fiber；There is preferable textile process performance.Product is mainly used for high-temperature flue gas and spy The filtering of different thermal medium, the encapsulated layer of dry zone and cable of paper industry and fire-proof fabric etc., woven fabric can make advanced Firefighter uniform.
The PTFE fiber, polytetrafluoroethylene fibre (polytetrafluoroethylene fibre), [- CF2- CF2-][n], China's title teflon.It is raw material by polytetrafluoroethylene (PTFE) (see fluororesin), cutting or fibril after through spinning or film is made A kind of synthetic fibers polytetrafluoroethylene fibre 17.7~18.5cN/dtex of intensity, elongation percentage 25%~50% prepared by change.? In its molecular structure, fluorine atom volume is big compared with hydrogen atom, and the binding force of fluorine carbon key is also strong, has played the entire carbon-carbon skeletal chain of protection Effect, keeps polytetrafluoroethylene fibre chemical stability fabulous, and corrosion resistance is better than other synthetic fibers kinds；Fiber surface has wax Sense, coefficient of friction are small；120~180 DEG C of temperature of actual use；Also there is preferable against weather and flex stiffiness, but dyeability With poor thermal conductivity, wearability is also bad, and thermal expansion coefficient is big, easy to produce static electricity.Polytetrafluoroethylene fibre is mainly used as high temperature powder Dirt filter bag, the filtering gas of corrosion-resistant or the filter material of liquid, the filler of pump and valve, band, self-lubricating bearing, alkaline are used Reinforcing material and the tarpaulin of rocket launching pad of perfluorinated ion-exchange membrane etc..
The polyester fiber is with p-phthalic acid (PTA) or dimethyl terephthalate (DMT) (DMT) and ethylene glycol (EG) It is raw material through fiber-forming polymer --- polyethylene terephthalate prepared by esterification or transesterification and polycondensation reaction (PET), through fiber made of spinning and post-processing.
Specific embodiment
The present invention will be further described below with reference to examples.
Embodiment 1
A kind of high temperature resistance filtration material applied to electric power and asphalt mixing, sequentially includes first from dust-collecting face to non-dust-collecting face Fibrous layer, high-precision filter layer, the second fibrous layer are made by water jet process；
First fibrous layer is fabricated by PPS fiber (2.22dtex*51mm) by shredding, carding process, and grammes per square metre is 190g/m2；
Second fibrous layer is fabricated by PPS fiber (2.22dtex*51mm) by shredding, carding process, and grammes per square metre is 220g/m2；
The high-precision filter layer is the smartMELAMINE fibrofelt that breadth is 2200mm, grammes per square metre 120g/m2。
Embodiment 2
A kind of high temperature resistance filtration material applied to electric power and asphalt mixing, sequentially includes first from dust-collecting face to non-dust-collecting face Fibrous layer, high-precision filter layer, base cloth layer, the second fibrous layer are made by needling process；
First fibrous layer is fabricated by polyester fiber (2.22dtex*51mm) by shredding, carding process, and grammes per square metre is 220g/m2；
Second fibrous layer is fabricated by polyester fiber (2.22dtex*51mm) by shredding, carding process, and grammes per square metre is 250g/m2；
The high-precision filter layer is the smartMELAMINE fibrofelt that breadth is 2200mm, grammes per square metre 100g/m2。
The base cloth layer by PTFE long filament through being compiled into, grammes per square metre 110g/m2。
Embodiment 3
A kind of high temperature resistance filtration material applied to electric power and asphalt mixing, sequentially includes first from dust-collecting face to non-dust-collecting face Fibrous layer, high-precision filter layer, base cloth layer, the second fibrous layer are made by water jet process；
First fibrous layer is fabricated by aramid fiber 1313 (2.22dtex*51mm) by shredding, carding process, gram Weight is 200g/m2；
Second fibrous layer is fabricated by aramid fiber 1313 (2.22dtex*51mm) by shredding, carding process, gram Weight is 200g/m2；
The high-precision filter layer is the smartMELAMINE fibrofelt that breadth is 2200mm, grammes per square metre 100g/m2。
The base cloth layer by PPS yarn through being compiled into, grammes per square metre 100g/m2。
Embodiment 4
A kind of high temperature resistance filtration material applied to electric power and asphalt mixing, sequentially includes first from dust-collecting face to non-dust-collecting face Fibrous layer, high-precision filter layer, base cloth layer, the second fibrous layer are made by water jet process；
First fibrous layer presses quality by PSA fiber (2.22dtex*51mm) and aramid fiber 1313 (2.22dtex*51mm) The fibrous layer more blended than 1:1.It is fabricated by shredding, carding process, grammes per square metre 200g/m2；
Second fibrous layer presses quality by PSA fiber (2.22dtex*51mm) and aramid fiber 1313 (2.22dtex*51mm) The fibrous layer more blended than 1:1.It is fabricated by shredding, carding process, grammes per square metre 200g/m2；
The high-precision filter layer is the smartMELAMINE fibrofelt that breadth is 2200mm, grammes per square metre 100g/m2。
The base cloth layer by PTFE long filament through being compiled into, grammes per square metre 110g/m2。
Embodiment 5
A kind of high temperature resistance filtration material applied to electric power and asphalt mixing, sequentially includes first from dust-collecting face to non-dust-collecting face Fibrous layer, high-precision filter layer, base cloth layer, the second fibrous layer are made by water jet process；
First fibrous layer is by PPS fiber (2.22dtex*51mm) and polyester fiber (2.22dtex*51mm) in mass ratio 8: 2 blended fibrous layers.It is fabricated by shredding, carding process, grammes per square metre 200g/m2；
Second fibrous layer is by PPS fiber (2.22dtex*51mm) and polyester fiber (2.22dtex*51mm) in mass ratio 8: 2 blended fibrous layers.It is fabricated by shredding, carding process, grammes per square metre 200g/m2；
The high-precision filter layer is the smartMELAMINE fibrofelt that breadth is 2200mm, grammes per square metre 100g/m2。
The base cloth layer by PPS yarn through being compiled into, grammes per square metre 100g/m2。
Embodiment 6
A kind of high temperature resistance filtration material applied to electric power and asphalt mixing, sequentially includes first from dust-collecting face to non-dust-collecting face Fibrous layer, high-precision filter layer, base cloth layer, the second fibrous layer are made by water jet process；
First fibrous layer presses quality by PSA fiber (2.22dtex*51mm) and aramid fiber 1313 (2.22dtex*51mm) The fibrous layer more blended than 7:3.It is fabricated by shredding, carding process, grammes per square metre 200g/m2；
Second fibrous layer presses quality by PSA fiber (2.22dtex*51mm) and aramid fiber 1313 (2.22dtex*51mm) The fibrous layer more blended than 7:3.It is fabricated by shredding, carding process, grammes per square metre 200g/m2；
The high-precision filter layer is the smartMELAMINE fibrofelt that breadth is 2200mm, grammes per square metre 100g/m2。
The base cloth layer by PTFE long filament through being compiled into, grammes per square metre 100g/m2。
Comparative example 1
Manufacturer: Xiamen Sanweisi Environmental Protection Co., Ltd, product brand: general resistance to filter bag.
Comparative example 2
Manufacturer: Ge Er company, product brand:Low row's filter bag.
Test case 1
The filtrate obtained to embodiment, comparative example is tested for the property, and the results are shown in Table 1.
The test result of 1 test case 1 of table
Filter efficiency % Wear-resisting % Air penetrability mm/s
Test method VDI 3926-1 GB/T21196.2 GB/T 5453
Embodiment 1 99.9993 0.11 170.20
Embodiment 2 99.9994 0.12 165.26
Embodiment 3 99.9990 0.10 169.13
Embodiment 4 99.9995 0.14 180.78
Embodiment 5 99.9992 0.13 167.76
Embodiment 6 99.9995 0.14 230.77
Comparative example 1 99.9710 0.16 230.13
Comparative example 2 99.9992 2.16 80.31
The high temperature resistance filtration material that the present invention obtains, it is efficient to dust catching, discharge amount is low；Filtrate wearability is significantly increased； Compared with common membrane bag filter in the prior art, filtrate air permeability of the invention can be improved 50% or more.Filter material surface is attached The dust powder Clean after every time can also extend about 1.4 times；For ensure power consumption used in certain air penetrability and Wash number is reduced, and energy conservation and environmental protection is realized.Filtrate of the present invention shortens scavenging period, improves dust catching rate, The production efficiency that 10% or more can be effectively improved is particularly suitable for electric power and asphalt mixing field.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those skilled in the art within the technical scope disclosed by the invention, can without the variation that creative work is expected or Replacement, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be limited with claims Subject to fixed protection scope.

Claims (10)

1. a kind of high temperature resistance filtration material applied to electric power and asphalt mixing, it is characterised in that: sequentially include the first fibrous layer, high-precision Filter layer, the second fibrous layer；Preferably, first fibrous layer, the second fibrous layer are each independently by one kind chosen from the followings Or multiple fiber is prepared: PSA fiber, PPS fiber, polyester fiber, aramid fiber 1313, PTFE fiber.
2. being applied to the high temperature resistance filtration material of electric power and asphalt mixing as described in claim 1, it is characterised in that: described first is fine Dimension layer is PPS fiber, line density 2.22dtex~3.33dtex of fiber；Second fibrous layer is PPS fiber, the line of fiber Density 2.22dtex~3.33dtex.
3. being applied to the high temperature resistance filtration material of electric power and asphalt mixing as described in claim 1, it is characterised in that: described first is fine Tieing up layer is PSA fiber and aramid fiber 1313 1:5~5:1 in mass ratio blended fibrous layer；Second fibrous layer is PSA fine Dimension and 1313 fibers 1:5~5:1 in mass ratio blended fibrous layer.
4. being applied to the high temperature resistance filtration material of electric power and asphalt mixing as described in claim 1, it is characterised in that: described first is fine Tieing up layer is PSA fiber and PPS fiber 1:5~5:1 in mass ratio blended fibrous layer；Second fibrous layer be PSA fiber with PPS fiber 1:5~5:1 in mass ratio blended fibrous layer.
5. being applied to the high temperature resistance filtration material of electric power and asphalt mixing as described in claim 1, it is characterised in that: the high-precision mistake Filtering layer is melamine meltblown fibers felt.
6. being applied to the high temperature resistance filtration material of electric power and asphalt mixing as claimed in claim 5, it is characterised in that: the melamine Amine meltblown fibers felt is smartMELAMINE fibrofelt.
7. it is applied to the preparation method of the high temperature resistance filtration material of electric power and asphalt mixing described in any one of claim 1-6, it is special Sign is, includes the following steps: first fibrous layer, high-precision filter layer, the second fibrous layer is compound by spun lacing or needle thorn It obtains.
8. the high temperature resistance filtration material according to claim 1 applied to electric power and asphalt mixing, it is characterised in that: described Also contain a base cloth layer between two fibrous layers and high-precision filter layer；Preferably, the base cloth layer is fine by PPS fiber or PTFE Dimension is prepared, more preferably PTFE fiber.
9. being applied to the preparation method of the high temperature resistance filtration material of electric power and asphalt mixing described in claim 8, which is characterized in that including Following steps: first fibrous layer, high-precision filter layer, base cloth layer, the second fibrous layer are pierced into compound obtain by spun lacing or needle.
Application of the 10.smartMELAMINE fibrofelt in filtrate preparation；Preferably, the filtrate is applied to electric power and drip The high temperature resistance filtration material of blueness stirring.
CN201810130513.2A 2018-02-08 2018-02-08 It is a kind of applied to electric power and the high temperature resistance filtration material of asphalt mixing and preparation method thereof Pending CN110126399A (en)

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JP2001212416A (en) * 2000-02-04 2001-08-07 Nippon Sheet Glass Co Ltd Filter paper for high temperature air filter
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