CN109954320A - A kind of preparation process of antistatic basalt Nomex - Google Patents
A kind of preparation process of antistatic basalt Nomex Download PDFInfo
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- CN109954320A CN109954320A CN201910353947.3A CN201910353947A CN109954320A CN 109954320 A CN109954320 A CN 109954320A CN 201910353947 A CN201910353947 A CN 201910353947A CN 109954320 A CN109954320 A CN 109954320A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C9/00—Singeing
-
- 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
Abstract
The invention belongs to industrial dedusting applied technical fields, specifically disclose a kind of preparation process of antistatic basalt Nomex, include the following steps, step 1, fiber opening, 80%-90% basalt fibre, 10%-20% stainless steel fibre raw material are weighed according to the proportion, it is first tentatively loosened using opener, shredding is abundant, is uniformly mixed and avoids fibre damage as far as possible.Step 2, fiber combing.Step 3, lapping.Step 4, needle thorn compacting；Step 5, post-processing, (1) calendering；(2) it singes；(3) lotion impregnates；(4) high-temperature shaping；(5) overlay film.The beneficial effects of the present invention are: 1, antistatic basalt Nomex filtrate be on base fabric two sides be covered each by the basalt fibre and stainless steel fiber web of stereo staggered, the filtrate of the spatially state of the fibre structure made of needing machine needle thorn after compacting is fixed；2, Nomex filtrate aperture is small, and filtration resistance is low, good permeability, to capture dust high-efficient.Filter efficiency is up to 99.99% or more.
Description
Technical field
The invention belongs to industrial dedusting applied technical fields, and in particular to a kind of preparation work of antistatic basalt Nomex
Skill.
Background technique
The flue dust extreme temperatures discharged in silicomanganese smelting process, into cabinet temperature sometimes at 300 DEG C or so, and
CO, CO2 concentration are larger, and the dust in flue dust enters cabinet with charge.If adsorbing powder dust mutually touches in the surface layer of filter bag
It hits and just will form electric discharge, easily generate explosion, this just needs filter bag as conductor, with heat-resisting material basalt fibre and stainless
Steel conductive fiber carries out blended needle thorn.
Based on the above issues, the present invention provides a kind of preparation process of antistatic basalt Nomex.
Summary of the invention
Goal of the invention: in view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of antistatic basalt Nomexs
Preparation process, strength retention is good, and gas permeability is good to make filter bag can be resistant to burn into easy-to-clean ash, indeformable, is conducive to extend filter
Bag service life carries out bag making using full-automatic sewing making bag production line according to the practical specification requirement of filter bag.
Technical solution: the present invention provides a kind of preparation process of antistatic basalt Nomex, includes the following steps, step
1, fiber opening according to the proportion weighs 80%-90% basalt fibre, 10%-20% stainless steel fibre raw material, utilizes opener elder generation
It is tentatively loosened, by big coma shredding, basalt fibre and stainless steel fibre in raw material is made to obtain uniform mixing, then
Smart shredding is carried out using opener, fiber of further loosening, composite fibre ingredient, shredding is abundant, is uniformly mixed and avoids as far as possible
Fibre damage.Step 2, fiber combing, fiber, into air pressure cotton box, prepare feeding carding machine after shredding and being sufficiently mixed,
By winning combing of the effect realization to fiber between stripping roller and cylinder after into carding machine, shape is finally transferred out by doffer
At web, the web by combing is frivolous single net at this time.Step 3, lapping, fibre web enter lapping machine, lapping carriage
By tooth form V belt translation, the fiber list net of carding machine output is subjected to cross folding, make with 2.2 meters -3.5 meters of breadth and
Unit grammes per square metre is 950 g/ ㎡ -1200g/ ㎡ multilayer fibre webs, for next procedure use.Step 4, needle thorn compacting, fibre web enter
Needing machine has a large amount of pricker for having acicular hook in needing machine, puncture is repeated to web；Step 5, post-processing, (1) is rolled
Light can make non-woven material surface smooth, smooth by 350 DEG C -380 DEG C of calender hot rolling, and thickness is uniform, the main mesh of calendering
Be the finish and planarization for increasing non-woven material, and the tightness of material can be increased；(2) it singes, utilizes machine of singing
The filoplume of its protrusion of surface is burnt up, is allowed to bright and clean；(3) lotion impregnates, and manufactured Nomex is immersed in chemicals,
In, chemicals is the mixed liquor that dispersion liquid and water and oil repellent agent is concentrated in PTFE, with the high temperature resistant, acidproof of lift pins thorn lacing felt filter material
The property of alkali, antioxidant；(4) high-temperature shaping, Nomex filtrate enter Tenter oven, wherein Tenter oven temperatures 350
DEG C -380 DEG C, setting time is -10 minutes 5 minutes, realizes the high-temperature shaping to filtrate, so that filtrate deformation in use is small,
Filtrate dimensional stability is high, long service life；(5) Nomex filtrate made from overlay film is covered by laminating machine with PTFE film
Film is attached to PTFE film on cloth, filtrate coated with film will have surface filtration by 300 DEG C of -330 DEG C of hot roll hot pressing
Effect, filtering accuracy improve, and can filter more tiny dust particles, and anticorrosion high temperature resistance is promoted.Step 6, according to filter
The practical specification requirement of bag carries out bag making using full-automatic sewing making bag production line.
The technical program, in the needle thorn compacting in the step 4, web is by laying repeatedly, in feeding needle thorn
Very fluffy when machine, thickness is considerable, but strength is poor, causes fiber upper and lower displacement when pricker punctures repeatedly in fibre web, generates extruding,
The fiber in fibre web is set to draw close and be compressed, frictional force increases between fiber, and intensity increases, and being formed has certain strength density
Nonwovens.
The technical program, the thorn of antistatic basalt needle made from the preparation process of the antistatic basalt Nomex
Felt, using basalt fibre and stainless steel conductive fiber it is blended after by combing machine be combed into net as upper and lower surface layer, it is intermediate
Base fabric is made using alkali-free glass fibre.
The technical program, the fiber of surface layer up and down and intermediate alkali-free glass fibre base fabric in the step 4 are through 8 high speeds
Needle thorn is made, and final finishing is impregnated through PTFE and waterproof and oilproof.
Compared with prior art, the beneficial effect of the preparation process of antistatic basalt Nomex of the invention a kind of exists
In: 1, antistatic basalt Nomex filtrate be on base fabric two sides be covered each by the basalt fibre and stainless steel fibre of stereo staggered
Net is tieed up, the filtrate of the spatially state of the fibre structure made of needing machine needle thorn after compacting is fixed；2, Nomex filtrate aperture
Small, filtration resistance is low, good permeability, to capture dust high-efficient.Filter efficiency is up to 99.99% or more.
Specific embodiment
Combined with specific embodiments below, the present invention is furture elucidated.
Embodiment one
A kind of preparation process of antistatic basalt Nomex of the invention, includes the following steps, step 1, fiber opening,
80% basalt fibre, 20% stainless steel fibre raw material are weighed according to the proportion, are first tentatively loosened using opener, by big fibre
The shredding of dimension group makes basalt fibre and stainless steel fibre in raw material obtain uniform mixing, opener is recycled to carry out smart shredding,
Further loosen fiber, composite fibre ingredient, shredding sufficiently, be uniformly mixed and avoid fibre damage as far as possible.Step 2, fiber comb
Reason, fiber, into air pressure cotton box, prepare feeding carding machine by shredding and after being sufficiently mixed, into carding machine after pass through stripping roller
Combing of the effect realization to fiber is won between cylinder, finally is transferred out to form web by doffer, at this time by comb
The web of reason is frivolous single net.Step 3, lapping, fibre web enter lapping machine, and lapping carriage will be combed by tooth form V belt translation
The fiber list net of machine output carries out cross folding, and making with 2.2 meters of breadth and unit grammes per square metre is that 950 g/ ㎡ multilayers are fine
Net, for next procedure use.Step 4, needle thorn compacting, fibre web enter needing machine, have in needing machine and largely have acicular hook
Puncture is repeated to web in pricker；Step 5, post-processing, (1) calendering can be made non-woven by 350 DEG C of calender hot rolling
Material surface is smooth, smooth, and thickness is uniform, and the main purpose of calendering is the finish and planarization of increase non-woven material, and
The tightness of material can be increased；(2) it singes, the filoplume of its protrusion of surface is burnt up using machine is singed, is allowed to bright and clean；(3) newborn
Liquid dipping, manufactured Nomex is immersed in chemicals, wherein chemicals is that dispersion liquid and waterproof and oilproof is concentrated in PTFE
The mixed liquor of agent, with high temperature resistant, the property of acid and alkali-resistance, antioxidant of lift pins thorn lacing felt filter material；(4) high-temperature shaping, Nomex
Filtrate enters Tenter oven, wherein Tenter oven temperatures are 350 DEG C, and setting time is 5 minutes, and it is fixed to the high temperature of filtrate to realize
Type, so that filtrate deformation in use is small, filtrate dimensional stability is high, long service life；(5) Nomex filtrate made from overlay film
Overlay film is carried out with PTFE film by laminating machine, by 300 DEG C of hot roll hot pressing, is attached to PTFE film on cloth, after overlay film
Filtrate will have a surface filtration effect, filtering accuracy improves, and can filter more tiny dust particles, anticorrosion heat-resisting quantity
It can be promoted.Step 6, the practical specification requirement according to filter bag carry out bag making using full-automatic sewing making bag production line.
Embodiment two
A kind of preparation process of antistatic basalt Nomex of the invention, includes the following steps, step 1, fiber opening,
90% basalt fibre, 10% stainless steel fibre raw material are weighed according to the proportion, are first tentatively loosened using opener, by big fibre
The shredding of dimension group makes basalt fibre and stainless steel fibre in raw material obtain uniform mixing, opener is recycled to carry out smart shredding,
Further loosen fiber, composite fibre ingredient, shredding sufficiently, be uniformly mixed and avoid fibre damage as far as possible.Step 2, fiber comb
Reason, fiber, into air pressure cotton box, prepare feeding carding machine by shredding and after being sufficiently mixed, into carding machine after pass through stripping roller
Combing of the effect realization to fiber is won between cylinder, finally is transferred out to form web by doffer, at this time by comb
The web of reason is frivolous single net.Step 3, lapping, fibre web enter lapping machine, and lapping carriage will be combed by tooth form V belt translation
The fiber list net of machine output carries out cross folding, and making with 3.5 meters of breadth and unit grammes per square metre is that 1200g/ ㎡ multilayer is fine
Net, for next procedure use.Step 4, needle thorn compacting, fibre web enter needing machine, have in needing machine and largely have acicular hook
Puncture is repeated to web in pricker；Step 5, post-processing, (1) calendering can be made non-woven by 380 DEG C of calender hot rolling
Material surface is smooth, smooth, and thickness is uniform, and the main purpose of calendering is the finish and planarization of increase non-woven material, and
The tightness of material can be increased；(2) it singes, the filoplume of its protrusion of surface is burnt up using machine is singed, is allowed to bright and clean；(3) newborn
Liquid dipping, manufactured Nomex is immersed in chemicals, wherein chemicals is that dispersion liquid and waterproof and oilproof is concentrated in PTFE
The mixed liquor of agent, with high temperature resistant, the property of acid and alkali-resistance, antioxidant of lift pins thorn lacing felt filter material；(4) high-temperature shaping, Nomex
Filtrate enters Tenter oven, wherein Tenter oven temperatures are 380 DEG C, and setting time is 10 minutes, and it is fixed to the high temperature of filtrate to realize
Type, so that filtrate deformation in use is small, filtrate dimensional stability is high, long service life；(5) Nomex filtrate made from overlay film
Overlay film is carried out with PTFE film by laminating machine, by 330 DEG C of hot roll hot pressing, is attached to PTFE film on cloth, after overlay film
Filtrate will have a surface filtration effect, filtering accuracy improves, and can filter more tiny dust particles, anticorrosion heat-resisting quantity
It can be promoted.Step 6, the practical specification requirement according to filter bag carry out bag making using full-automatic sewing making bag production line.
The preparation process of the antistatic basalt Nomex of the embodiment of the present invention one or embodiment two, in the step 4
In needle thorn compacting, web is by laying repeatedly, and very fluffy when feeding needing machine, thickness is considerable, but strength is poor, works as thorn
Needle punctures repeatedly in fibre web and causes fiber upper and lower displacement, generates extruding, so that the fiber in fibre web is drawn close and is compressed, between fiber
Frictional force increases, and intensity increases, and forms the nonwovens with certain strength density.
Wherein, antistatic basalt Nomex made from the preparation process of the antistatic basalt Nomex, use are profound
Net is combed into as upper and lower surface layer by combing machine after military rock fiber and stainless steel conductive fiber are blended, and centre uses alkali-free glass
Glass fiber makees base fabric.It is further preferred that the fiber of surface layer up and down and intermediate alkali-free glass fibre base fabric in the step 4 are through 8
High speed needle thorn in road is made, and final finishing is impregnated through PTFE and waterproof and oilproof.
Filter bag obtained by the antistatic basalt Nomex preparation process of the embodiment of the present invention one or embodiment two, can disappear
Except filter bag surface generates electrostatic, electric conductivity is constant under high temperature environment for stainless steel conductive fiber, lasting stability, material: the Black Warrior
Rock fiber, stainless steel fibre, grammes per square metre: 950g/ ㎡ -1200g/ ㎡, Air permenbility: 13-16m3/ ㎡/min, radial strength: >=
1700N(5*20cm), broadwise strength: >=1700N(5*20cm), sheet resistance: 5*109 Ω, volume resistance: 919*108 Ω.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
It for member, without departing from the principle of the present invention, can also make several improvements, these improvement also should be regarded as of the invention
Protection scope.
Claims (5)
1. a kind of preparation process of antistatic basalt Nomex, it is characterised in that: include the following steps,
Step 1, fiber opening according to the proportion weigh 80%-90% basalt fibre, 10%-20% stainless steel fibre raw material, utilize
Opener is first tentatively loosened, and by big coma shredding, obtains basalt fibre and stainless steel fibre in raw material uniformly
Mixing, recycle opener to carry out smart shredding, fiber of further loosening, composite fibre ingredient, shredding sufficiently, be uniformly mixed simultaneously
Fibre damage is avoided as far as possible；
Step 2, fiber combing, fiber, into air pressure cotton box, prepare feeding carding machine, enter after shredding and being sufficiently mixed
By winning combing of the effect realization to fiber between stripping roller and cylinder after carding machine, finally it is transferred out to form fibre by doffer
Net is tieed up, the web by combing is frivolous single net at this time；
Step 3, lapping, fibre web enter lapping machine, and lapping carriage is carried out the fiber list net of carding machine output by tooth form V belt translation
Cross folding, making with 2.2 meters -3.5 meters of breadth and unit grammes per square metre is 950 g/ ㎡ -1200g/ ㎡ multilayer fibre webs, with
It is used for next procedure；
Step 4, needle thorn compacting, fibre web enter needing machine, have a large amount of pricker for having acicular hook in needing machine, repeatedly to web
It is punctured；
Step 5, post-processing,
(1) calendering can make non-woven material surface smooth, smooth by 350 DEG C -380 DEG C of calender hot rolling, and thickness is uniform, rolls
The main purpose of light is to increase the finish and planarization of non-woven material, and can increase the tightness of material；
(2) it singes, the filoplume of its protrusion of surface is burnt up using machine is singed, is allowed to bright and clean；
(3) lotion impregnates, and manufactured Nomex is immersed in chemicals, wherein chemicals is that dispersion liquid is concentrated in PTFE
With the mixed liquor of water and oil repellent agent, high temperature resistant, the property of acid and alkali-resistance, antioxidant of lacing felt filter material are pierced with lift pins；
(4) high-temperature shaping, Nomex filtrate enter Tenter oven, wherein Tenter oven temperatures are 350 DEG C -380 DEG C, when sizing
Between be -10 minutes 5 minutes, realize to the high-temperature shaping of filtrate so that filtrate deformation in use is small, filtrate dimensional stability
Height, long service life；
(5) Nomex filtrate made from overlay film carries out overlay film with PTFE film by laminating machine, passes through 300 DEG C of -330 DEG C of hot rolls
Hot pressing is attached to PTFE film on cloth, and filtrate coated with film will have surface filtration effect, and filtering accuracy improves, being capable of mistake
More tiny dust particles are filtered, anticorrosion high temperature resistance is promoted.
2. step 6, the practical specification requirement according to filter bag carry out bag making using full-automatic sewing making bag production line.
3. a kind of preparation process of antistatic basalt Nomex according to claim 1, it is characterised in that: the step
In needle thorn compacting in 4, web is by laying repeatedly, and very fluffy when feeding needing machine, thickness is considerable, but strength
Difference causes fiber upper and lower displacement when pricker punctures repeatedly in fibre web, generates extruding, the fiber in fibre web is made to draw close and be compressed,
Frictional force increases between fiber, and intensity increases, and forms the nonwovens with certain strength density.
4. a kind of preparation process of antistatic basalt Nomex according to claim 1 or 2, it is characterised in that: described
Antistatic basalt Nomex, is led using basalt fibre and stainless steel made from the preparation process of antistatic basalt Nomex
Net is combed into as upper and lower surface layer by combing machine after electric fiber blend, and base fabric is made using alkali-free glass fibre in centre.
5. a kind of preparation process of antistatic basalt Nomex according to claim 3, it is characterised in that: the step
The fiber of surface layer up and down and intermediate alkali-free glass fibre base fabric in 4 are made through 8 high speed needles thorn, and final finishing is through PTFE and prevents
The anti-oil-impregnated of water.
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Cited By (5)
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| CN111300914A (en) * | 2019-12-09 | 2020-06-19 | 深圳市欣天科技股份有限公司 | Preparation method of high-strength low-resistivity composite conductive plastic |
| CN111714964A (en) * | 2020-06-29 | 2020-09-29 | 浙江严牌过滤技术股份有限公司 | Dedusting and dioxin removing integrated filter material and preparation method thereof |
| CN112709006A (en) * | 2020-12-16 | 2021-04-27 | 南京玻璃纤维研究设计院有限公司 | Superfine basalt fiber net tire production line |
| CN113058344A (en) * | 2021-04-20 | 2021-07-02 | 安徽中电环保材料股份有限公司 | Environment-friendly filter bag for waste incineration plant based on PTFE (polytetrafluoroethylene) film-coated needled felt |
| CN113320236A (en) * | 2021-05-27 | 2021-08-31 | 江苏喜洋洋环保设备科技有限公司 | Preparation method for improving temperature resistance of alkali-free glass fiber woven fabric filter material |
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