CN109745774A - The production method of needled filtering felt suitable for asphalt mixing - Google Patents
The production method of needled filtering felt suitable for asphalt mixing Download PDFInfo
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- CN109745774A CN109745774A CN201910128523.7A CN201910128523A CN109745774A CN 109745774 A CN109745774 A CN 109745774A CN 201910128523 A CN201910128523 A CN 201910128523A CN 109745774 A CN109745774 A CN 109745774A
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Abstract
The production method of needled filtering felt suitable for asphalt mixing, it is characterised in that: the following steps are included: step 1, fiber mixing；Step 2, processing workshop Job readiness；Step 3 makes fleece layer；Step 4 makes preliminary embryo felt；Step 5 makes plain felt；Step 6 makes needled filtering felt；It is easy to operate, reduce cost of manufacture；There is good high temperature resistant, wear-resisting, chemical resistance using needled filtering felt made of the production method, substantially increase filter efficiency, substitute aramid fiber material, quality is stablized；There is good deashing property and longer service life simultaneously.
Description
Technical field
The present invention relates to the fields of filter felt, more particularly to the production method of the needled filtering felt suitable for asphalt mixing.
Background technique
Pitch dust has a corner angle under the microscope, and when filtering, a large amount of pitch dust can break through filter bag, therefore cannot adopt
With conventional filter bag；In addition, pitch mass rate of emission is fast, impact force is very big, also results in filter bag and is easy breakage, service life contracting
It is short；The prior art for asphalt mixing filter bag there are prices of raw materials valuableness, the problems such as cost of manufacture is high, and service life is short.
Summary of the invention
It is an object of the present invention to provide a kind of production methods of needled filtering felt suitable for asphalt mixing, and method is simple, at
This reduction solves the above technical problem.
In order to achieve the above technical purposes, reach above-mentioned technical requirements, the technical scheme adopted by the invention is that: it is applicable in
In the production method of the needled filtering felt of asphalt mixing, including step in detailed below: fiber preparation: step 1 mixes in proportion
The fiber of dust-collecting face and the fiber of supporting surface: PSA fiber and heat resistance fiber are mixed in the ratio of 1:3, break up to form dust-collecting face fibre
PSA fiber and flame-resistant terylene are mixed in the ratio of 1:3, break up to form supporting surface fiber by dimension, uniform during mixing, breaing up
Spray antistatic agent medical fluid；The antistatic agent medical fluid use mass fraction for 5% antistatic agent and 95% water configuration and
At；Processing workshop Job readiness: step 2 the equipment such as opener, hopper, carding machine, cross lapping machine is adequately grounded and are put
Electricity, workshop humidify humidity to 45% or more；Step 3 makes fleece layer: the fiber mixed being fed carding machine, will be combed whole
Neat fiber carries out cross lapping by lapping machine, forms fleece layer, controls the grammes per square metre of fleece layer in 180g/m2；Step 4, system
Make preliminary embryo felt: intersecting the pure virtue for being implanted into 105 g/m2 among the intersection multilayer fleece that paving machine is laid in two carding machines, two
Synthetic fibre base fabric is introduced into pre-needling machine, carries out pre-needling, forms preliminary embryo felt, for pre-needling depth in 10-13mm, pre-needling is close
Degree control is controlled in 100-120 needle/cm2, fibre web drawing-off ratio in 5-8%；Step 5 makes plain felt: preliminary embryo felt is passed through again
It crosses upper and lower needle thorn main-needling machine and carries out main needle thorn, reinforce formin felt, main depth of needling exists in 5-12mm, main needling density control
1400-1600 needle/cm2, fibre web drawing-off ratio control within 5%；Step 6 makes needled filtering felt: using framing shaping machine
By needling shape at plain felt carry out thermal finalization processing, then singed to it, press polish processing.
Preferred: the processing workshop is closed, and at 15-30 DEG C, relative humidity is controlled in 45-65% for temperature control.
Preferred: used fiber prescription is PSA fiber 2D × 51mm × 30%, flame-resistant terylene 3D × 51mm × 40%, resistance to
Thermal fiber 2.5D × 55mm × 30%, base fabric use the pure aramid fiber base fabric of 105g/m2, through being greater than 1200N/5cm, broadwise to strength
Strength is greater than 150 N/5cm；
Preferred: the speed of the fiber feeding carding machine feeds Weight control in 1.5-2kg/min in 9-10m/min.
Preferred: the number of plies of the cross lapping machine lapping is 6-9 layers, and the number of plies of lower net is greater than the layer of upper wire
Number.
Preferred: the temperature control of the described thermal finalization processing is at 180-200 DEG C, heat-setting time 5-6min.
It is preferred: singed, press polish processing when use natural gas for fuel, control natural gas and AIR Proportional are 1:2,
The control of press polish roll temperature is at 100-130 DEG C when press polish is handled, and speed control of singing is in 10-20m/min.
Beneficial effects of the present invention；The production method of needled filtering felt suitable for asphalt mixing, it is easy to operate, reduce system
Make cost；There is good high temperature resistant, wear-resisting, chemical resistance using needled filtering felt made of the production method, greatly improve
Filter efficiency, substitutes aramid fiber material, and quality is stablized；There is good deashing property and longer service life simultaneously.
Specific embodiment
In order to be more clear goal of the invention of the invention, technical solution and its advantageous effects, below in conjunction with specific
Embodiment, the present invention will be described in further detail；The production method of needled filtering felt suitable for asphalt mixing, including
Step in detailed below: fiber preparation: step 1 mixes the fiber of dust-collecting face and the fiber of supporting surface in proportion: by PSA fiber and
Heat resistance fiber is mixed in the ratio of 1:3, breaks up to form dust-collecting face fiber, PSA fiber and flame-resistant terylene are mixed in the ratio of 1:3,
It breaks up to form supporting surface fiber, the uniform sprinkling antistatic agent medical fluid during mixing, breaing up；The antistatic agent medical fluid is adopted
It is configured with mass fraction for 5% antistatic agent and 95% water；Step 2, processing workshop Job readiness: by opener, cotton
The equipment such as case, carding machine, cross lapping machine are adequately grounded electric discharge, and workshop humidifies humidity to 45% or more；Step 3 makes hair
Stratum reticulare: feeding carding machine for the fiber mixed, and the fiber of tidy is carried out cross lapping by lapping machine, forms fleece
Layer controls the grammes per square metre of fleece layer in 180g/m2；Step 4 makes preliminary embryo felt: in two carding machines, two intersection paving machine pavings
If intersection multilayer fleece among 105 g/m2 of implantation pure aramid fiber base fabric, be introduced into pre-needling machine, carry out pre-needling, formed
Preliminary embryo felt, pre-needling depth is in 10-13mm, and pre-needling density domination is in 100-120 needle/cm2, the control of fibre web drawing-off ratio
In 5-8%；Step 5 makes plain felt: preliminary embryo felt being carried out main needle thorn using upper and lower needle thorn main-needling machine, reinforces formin
Felt, main depth of needling in 5-12mm, main needling density control in 1400-1600 needle/cm2, the control of fibre web drawing-off ratio 5% with
It is interior；Step 6, make needled filtering felt: using framing shaping machine by needling shape at plain felt carry out thermal finalization processing, it is then right
It is singed, press polish is handled.
The processing workshop is closed, and at 15-30 DEG C, relative humidity is controlled in 45-65% for temperature control；Used fiber is matched
Side is PSA fiber 2D × 51mm × 30%, flame-resistant terylene 3D × 51mm × 40%, heat resistance fiber 2.5D × 55mm × 30%, and base fabric is adopted
With the pure aramid fiber base fabric of 105g/m2, through being greater than 1200N/5cm to strength, broadwise strength is greater than 150 N/5cm；The fiber
The speed of carding machine is fed in 9-10m/min, feeds Weight control in 1.5-2kg/min；The cross lapping machine lapping
The number of plies is 6-9 layers, and the number of plies of lower net is greater than the number of plies of upper wire；The temperature of the thermal finalization processing is controlled in 180-
200 DEG C, heat-setting time 5-6min；Singed, press polish processing when use natural gas for fuel, control natural gas and air
Ratio is 1:2, and the control of press polish roll temperature is at 100-130 DEG C when press polish is handled, and speed control of singing is in 10-20m/min.
Specific implementation of the invention: case 1 has configured antistatic agent medical fluid first, mixes the fiber of dust-collecting face in proportion
With the fiber of supporting surface: PSA fiber and heat resistance fiber being mixed in the ratio of 1:3, break up to form dust-collecting face fiber, by PSA fiber
It mixed with flame-resistant terylene in the ratio of 1:3, break up to form supporting surface fiber, uniform sprinkling configures during mixing, breaing up
Antistatic agent medical fluid；Processing workshop is closed, and at 15-30 DEG C, relative humidity is controlled in 45-65% for temperature control；Then by shredding
The equipment such as machine, hopper, carding machine, cross lapping machine are adequately grounded electric discharge, are connect when production equipment is grounded using copper wire one
It is grounded on copper rod, a mode connect in equipment, the diameter of copper wire is in 1-2cm, and copper rod diameter is in 10-40mm, copper rod embedment
Underground 1-2m；Then the fiber mixed is fed into carding machine, fiber feeds the speed of carding machine in 9m/min, feeds weight control
System is in 1.5kg/min；The fiber of tidy is subjected to cross lapping by lapping machine again, the number of plies of cross lapping machine lapping is
6-9 layers, and the number of plies of lower net is greater than the number of plies of upper wire；Fleece layer is formed, controls the grammes per square metre of fleece layer in 180g/m2；So
Intersect afterwards in two carding machines, two and is implanted into the pure aramid fiber base fabric of 105 g/m2 among the intersection multilayer fleeces that paving machines are laid with, one
With pre-needling machine is introduced, pre-needling is carried out, forms preliminary embryo felt, pre-needling depth is in 10mm, and pre-needling density domination is 100
Needle/cm2, fibre web drawing-off ratio are controlled 5%；Preliminary embryo felt is subjected to main needle thorn using upper and lower needle thorn main-needling machine, reinforces shape
At plain felt, main depth of needling in 5-12mm, main needling density control in 1400 needles/cm2, the control of fibre web drawing-off ratio 5% with
It is interior；Finally using framing shaping machine by needling shape at plain felt carry out thermal finalization processing, thermal finalization processing temperature control 180
DEG C, heat-setting time 5min；Then natural gas is used to be singed for fuel to it, press polish processing, control natural gas and sky
Gas ratio is 1:2, and the control of press polish roll temperature is at 100 DEG C when press polish is handled, and speed control of singing is in 10m/min.
Case 2 has configured antistatic agent medical fluid first, mixes the fiber of dust-collecting face and the fiber of supporting surface in proportion: by fragrant sulfone
Synthetic fibre and heat resistance fiber in 1:3 ratio mixing, break up to form dust-collecting face fiber, by PSA fiber and flame-resistant terylene in the ratio of 1:3
It mixes, break up to form supporting surface fiber, uniformly spray configured antistatic agent medical fluid during mixing, breaing up；Processing cart
Between it is closed, at 15-30 DEG C, relative humidity is controlled in 45-65% for temperature control；Then opener, hopper, carding machine, intersection are spread
The equipment such as net machine are adequately grounded electric discharge, are connect on ground connection copper rod when production equipment is grounded using copper wire one, and one connects and setting
Standby upper mode, for the diameter of copper wire in 1-2cm, copper rod diameter is embedded to underground 1-2m in 10-40mm, copper rod；Then it will mix
Fiber feed carding machine, fiber feeds the speed of carding machine in 10m/min, feeds Weight control in 2kg/min；It again will combing
Neat fiber carries out cross lapping by lapping machine, and the number of plies of cross lapping machine lapping is 6-9 layers, and the number of plies of lower net is big
In the number of plies of upper wire；Fleece layer is formed, controls the grammes per square metre of fleece layer in 180g/m2；Then in two carding machines, two intersections
The pure aramid fiber base fabric of 105 g/m2 of implantation, is introduced into pre-needling machine, carries out pre- needle among the intersection multilayer fleece that paving machine is laid with
Thorn forms preliminary embryo felt, and pre-needling depth is in 13mm, and pre-needling density domination is in 120 needles/cm2, the control of fibre web drawing-off ratio
8%；Preliminary embryo felt is subjected to main needle thorn using upper and lower needle thorn main-needling machine, reinforces formin felt, main depth of needling in 12mm,
In 1600 needles/cm2, fibre web drawing-off ratio is controlled within 5% for main needling density control；Finally needle is pierced using framing shaping machine
The plain felt of formation carries out thermal finalization processing, and the temperature control of thermal finalization processing is at 200 DEG C, heat-setting time 6min；Then it adopts
It is that fuel singes to it, press polish is handled with natural gas, control natural gas and AIR Proportional are 1:2, press polish when press polish is handled
Roll temperature is controlled at 130 DEG C, and speed control of singing is in 20m/min.
To be stablized using needled filtering felt quality made of the above method, wearability is good, while high temperature resistant, and it is wear-resisting, it mentions significantly
Filtration efficiency prolongs the service life, suitable for mass production, is suitable for asphalt mixing field.
Above-described embodiment is only intended to clearly illustrate description made by the present invention, and does not limit the embodiments,
To those of ordinary skill in the art, other various forms of variations or change can also be made on the basis of the above description
Dynamic, there is no necessity and possibility to exhaust all the enbodiments, and the obvious variation or change thus amplified out
It is dynamic to be still in the protection scope of this invention.
Claims (7)
1. being suitable for the production method of the needled filtering felt of asphalt mixing, including step in detailed below:
Fiber preparation: step 1 mixes the fiber of dust-collecting face and the fiber of supporting surface in proportion: PSA fiber and heat resistance fiber is pressed
The ratio mixing of 1:3 breaks up to form dust-collecting face fiber, and PSA fiber and flame-resistant terylene are mixed in the ratio of 1:3, break up to form branch
Support face fiber, the uniform sprinkling antistatic agent medical fluid during mixing, breaing up；The antistatic agent medical fluid uses mass fraction
It is configured for 5% antistatic agent and 95% water；
Processing workshop Job readiness: step 2 the equipment such as opener, hopper, carding machine, cross lapping machine is adequately grounded and are put
Electricity, workshop humidify humidity to 45% or more；
Step 3 makes fleece layer: the fiber mixed being fed carding machine, the fiber of tidy is carried out by lapping machine
Cross lapping forms fleece layer, controls the grammes per square metre of fleece layer in 180g/m2；
Step 4 makes preliminary embryo felt: intersecting in two carding machines, two and is implanted among the intersection multilayer fleece that paving machine is laid with
The pure aramid fiber base fabric of 105 g/m2 is introduced into pre-needling machine, carries out pre-needling, forms preliminary embryo felt, pre-needling depth is in 10-
13mm, pre-needling density domination are controlled in 100-120 needle/cm2, fibre web drawing-off ratio in 5-8%；
Step 5 makes plain felt: preliminary embryo felt is subjected to main needle thorn using upper and lower needle thorn main-needling machine, reinforces formin felt, it is main
Depth of needling is in 5-12mm, and in 1400-1600 needle/cm2, fibre web drawing-off ratio is controlled within 5% for main needling density control；
Step 6, make needled filtering felt: using framing shaping machine by needling shape at plain felt carry out thermal finalization processing, it is then right
It is singed, press polish is handled.
2. the production method suitable for the needled filtering felt of asphalt mixing as described in claim 1, it is characterised in that: described
Processing workshop is closed, and at 15-30 DEG C, relative humidity is controlled in 45-65% for temperature control.
3. the production method suitable for the needled filtering felt of asphalt mixing as described in claim 1, it is characterised in that: used
Fiber prescription be PSA fiber 2D × 51mm × 30%, flame-resistant terylene 3D × 51mm × 40%, heat resistance fiber 2.5D × 55mm ×
30%, base fabric uses the pure aramid fiber base fabric of 105g/m2, and through being greater than 1200N/5cm to strength, broadwise strength is greater than 150 N/5cm.
4. the production method suitable for the needled filtering felt of asphalt mixing as described in claim 1, it is characterised in that: described
Fiber feeds the speed of carding machine in 9-10m/min, feeds Weight control in 1.5-2kg/min.
5. the production method suitable for the needled filtering felt of asphalt mixing as described in claim 1, it is characterised in that: described
The number of plies of cross lapping machine lapping is 6-9 layers, and the number of plies of lower net is greater than the number of plies of upper wire.
6. the production method suitable for the needled filtering felt of asphalt mixing as described in claim 1, it is characterised in that: described
The temperature control of thermal finalization processing is at 180-200 DEG C, heat-setting time 5-6min.
7. the production method suitable for the needled filtering felt of asphalt mixing as described in claim 1, it is characterised in that: burnt
Use natural gas for fuel when hair, press polish processing, control natural gas and AIR Proportional are 1:2, press polish roll temperature when press polish is handled
Control is at 100-130 DEG C, and speed control of singing is in 10-20m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128523.7A CN109745774A (en) | 2019-02-21 | 2019-02-21 | The production method of needled filtering felt suitable for asphalt mixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128523.7A CN109745774A (en) | 2019-02-21 | 2019-02-21 | The production method of needled filtering felt suitable for asphalt mixing |
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| CN109745774A true CN109745774A (en) | 2019-05-14 |
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| CN201910128523.7A Pending CN109745774A (en) | 2019-02-21 | 2019-02-21 | The production method of needled filtering felt suitable for asphalt mixing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108178A (en) * | 2021-12-07 | 2022-03-01 | 上海澜森过滤材料科技有限公司 | PTFE filter felt production process based on decrement method |
| CN114191886A (en) * | 2021-12-14 | 2022-03-18 | 厦门保瑞达环保科技有限公司 | High-flux filter cloth and manufacturing method and application thereof |
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| WO2012048545A1 (en) * | 2010-10-14 | 2012-04-19 | Ng Ying Yuk | Nonwoven fabric, manufacturing method thereof and filters formed by it |
| CN202223985U (en) * | 2011-09-01 | 2012-05-23 | 江苏蓝天环保集团有限公司 | High-temperature anti-oxidation composite filtering material made of polysulfonamide fibers |
| CN102657979A (en) * | 2011-08-24 | 2012-09-12 | 上海特安纶纤维有限公司 | Composite filter material for bag-type dust removal system of coal-fired power plant and preparation method for composite filter material |
| CN103341290A (en) * | 2013-08-01 | 2013-10-09 | 南京际华三五二一环保科技有限公司 | Preparation method of filtering material for electrostatic excitation bag-type dust remover |
| CN104606955A (en) * | 2014-12-30 | 2015-05-13 | 东华大学 | Method for preparing polytetrafluoroethylene/polypropylene composite needle punched filter felt |
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- 2019-02-21 CN CN201910128523.7A patent/CN109745774A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030203694A1 (en) * | 2002-04-26 | 2003-10-30 | Kimberly-Clark Worldwide, Inc. | Coform filter media having increased particle loading capacity |
| CN2907835Y (en) * | 2005-12-16 | 2007-06-06 | 厦门三维丝环保工业有限公司 | Needling composite filtering felt |
| WO2012048545A1 (en) * | 2010-10-14 | 2012-04-19 | Ng Ying Yuk | Nonwoven fabric, manufacturing method thereof and filters formed by it |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108178A (en) * | 2021-12-07 | 2022-03-01 | 上海澜森过滤材料科技有限公司 | PTFE filter felt production process based on decrement method |
| CN114108178B (en) * | 2021-12-07 | 2023-01-24 | 上海澜森过滤材料科技有限公司 | PTFE filter felt production process based on decrement method |
| CN114191886A (en) * | 2021-12-14 | 2022-03-18 | 厦门保瑞达环保科技有限公司 | High-flux filter cloth and manufacturing method and application thereof |
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Application publication date: 20190514 |