CN109012204A - A kind of multilayer composite fiber membrane filter - Google Patents
A kind of multilayer composite fiber membrane filter Download PDFInfo
- Publication number
- CN109012204A CN109012204A CN201811010489.5A CN201811010489A CN109012204A CN 109012204 A CN109012204 A CN 109012204A CN 201811010489 A CN201811010489 A CN 201811010489A CN 109012204 A CN109012204 A CN 109012204A
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- multilayer composite
- composite fiber
- fiber membrane
- fluffy
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- 239000000835 fiber Substances 0.000 title claims abstract description 120
- 239000002131 composite material Substances 0.000 title claims abstract description 78
- 239000012528 membrane Substances 0.000 title claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 238000001914 filtration Methods 0.000 claims abstract description 77
- 230000009975 flexible effect Effects 0.000 claims abstract description 73
- 230000007704 transition Effects 0.000 claims abstract description 61
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 52
- 238000005192 partition Methods 0.000 claims abstract description 32
- 239000011148 porous material Substances 0.000 claims description 19
- 238000010276 construction Methods 0.000 claims description 17
- 238000011010 flushing procedure Methods 0.000 claims description 16
- 239000010865 sewage Substances 0.000 claims description 13
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 238000009940 knitting Methods 0.000 claims description 10
- -1 polypropylene Polymers 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 10
- 239000004745 nonwoven fabric Substances 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 abstract description 3
- 239000001913 cellulose Substances 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 40
- 238000011001 backwashing Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 11
- 238000000746 purification Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 238000009941 weaving Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000000574 ganglionic effect Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 230000009967 tasteless effect Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000005477 standard model Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/58—Multistep processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
Abstract
The invention discloses a kind of multilayer composite fiber membrane filters, belong to cellulose membrane filter technical field, including cylinder, middle part is equipped with partition in cylinder, partition is connect with cylinder inboard wall, partition will be divide into upper part and lower part in cylinder, top is divided into clean water area, lower part is divided into muddy water area, multilayer composite fiber membrane module is equipped with below partition, multilayer composite fiber membrane module is connected to by the water hole on partition with clean water area, multilayer composite fiber membrane module includes rigid bone rack-layer, it is successively arranged protection supporting layer from inside to outside on the outside of the barrel of rigid bone rack-layer, fine and closely woven filter layer, fluffy transition zone and flexible adjustment layer.Effective filtration area ratio of the invention has reached 8-12, substantially increases the effective filtration area ratio of filter in the prior art, reduces the investment of equipment and engineering, reduces operating cost, has fully demonstrated the design concept of " energy-saving and environmental protection ".
Description
Technical field
The present invention relates to cellulose membrane filter technical fields, and in particular to a kind of multilayer composite fiber membrane filter.
Background technique
The major function of engineering of water treatment is that all kinds of water quality are filtered with removal of impurities, separation concentration.Water filtration purification is set
It is standby closely bound up with people's production and life, in engineering of water treatment, the identical processing water and water quality the case where
Under, water treatment facilities volume is done as far as possible it is smaller, reduce equipment and engineering investment, reduce operating cost, or
Person says that identical filter cylinder is increased filtering water and improved water quality treatment using better material and device structure.Cause
This, Shandong Jiu Tai Chung Inc. technical staff concentrates on studies, and the technology for creating an evaluating water quality filter capability refers to
Mark: effective filtration area ratio X.
According to filter technical requirement on design, engineer's setting: filter interior filtering element can effectively be separated by filtration impurity
Area is A；The sectional area of filter cylinder diameter is B.Name filter interior filtering element can effectively be separated by filtration the area of impurity
The ratio of the sectional area B of A and filter cylinder diameter is effective filtration area ratio X, i.e. X=A/B.It rule of thumb learns, effectively
Filter area ratio is bigger, then filtering element area is bigger in the filter of same diameter, and same treatment water can greatly reduce
The diameter and height of filter, to reduce equipment and civil engineering investment.
Medium filter in the prior art, fibre bundle (ball) filter etc., barrel diameter can retain cutting for separation impurity
Area B is exactly effective filtering element area A, i.e., effective filtration area ratio is 1.But the above-mentioned prior art cannot further increase
Effective filtration area ratio not can be reduced the investment of equipment and engineering, reduce operating cost.
Summary of the invention
The present invention In view of the above shortcomings of the prior art, proposes a kind of multilayer composite fiber membrane filter, the present invention
Effective filtration area ratio reached 8-12, substantially increase the effective filtration area ratio of prior art filter, reduce and set
Standby and engineering investment, reduces operating cost.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of multilayer composite fiber membrane filter, including cylinder, the interior middle part of the cylinder are equipped with partition, partition and cylinder
Inner wall connection, partition will be divide into upper part and lower part in cylinder, and top is divided into clean water area, and lower part is divided into muddy water area, sets below partition
There is multilayer composite fiber membrane module, multilayer composite fiber membrane module is connected to by the water hole on partition with clean water area, and multilayer is multiple
Condensating fiber membrane module includes rigid bone rack-layer, and rigid bone rack-layer is the tubular structure of upper end opening, on the barrel of rigid bone rack-layer
Equipped with multiple through-holes, protection supporting layer, fine and closely woven filter layer, fluffy is successively arranged on the outside of the barrel of rigid bone rack-layer from inside to outside
Transition zone and flexible adjustment layer, the hole of flexible adjustment layer are greater than the hole of fluffy transition zone, and the hole of fluffy transition zone is greater than
The hole of fine and closely woven filter layer.
Further, the cylinder upper end is connect with end socket, and end socket is hemisphere shell structure, and end socket top is connect with upper tube,
Upper tube upper end is connect with outlet pipe and flushing pipe, and upper tube lower end is connect with upper stabilier, and cylinder bottom end is connect with down tube, down tube
Lower end is connect with water inlet pipe and sewage pipe, and down tube upper end is connect with lower stabilier.
Further, the water hole is equipped with porous plate, and porous plate passes through closed locking device and multilayer composite fiber
Membrane module connection.
Further, it is equipped with people Guan Yi above the partition, is equipped with people's pipe two, people Guan Yiyu people Guan Erjun below partition
It is connect with cylinder lateral wall, cylinder lateral wall is equipped with visor.
Further, the protection supporting layer is plain weave construction, and fine and closely woven filter layer is nonwoven fabric construct, fluffy mistake
Crossing layer is terry pile structure structure, and flexible adjustment layer is knitting technology weave structure.
Further, the through-hole is circular hole, and the diameter of through-hole is 4-5mm.
Further, the protection supporting layer is 2/2 plain weave construction, protects the yarn of supporting layer using long filament
Fiber, protecting the pore diameter of supporting layer is 60-100um, and protecting the porosity of supporting layer is 40%.
Further, the pore diameter of the fine and closely woven filter layer is 10-50um, and the porosity of fine and closely woven filter layer is
40%-50%, fine and closely woven filter layer use polypropylene fibre.
Further, the yarn of the fluffy transition zone uses filament fiber, and the pore diameter of fluffy transition zone is
200-300um, the porosity of fluffy transition zone are 40%.
Further, the yarn of the flexible adjustment layer uses filament fiber, and the pore diameter of flexible adjustment layer is greater than
300um, the porosity of flexible adjustment layer are 30-40%.
The invention has the benefit that
1, because middle part is equipped with partition in cylinder, partition is connect with cylinder inboard wall, and partition will be divided into two up and down in cylinder
Point, top is divided into clean water area, and lower part is divided into muddy water area, is equipped with multilayer composite fiber membrane module, multilayer composite fiber below partition
Membrane module is connected to by the water hole on partition with clean water area, so after the filtering of multilayer composite fiber membrane module filtering
Purified water can be entered in clean water area by water hole, and in backwash, backwashing water can also pass through water hole and MULTILAYER COMPOSITE
Cellulose membrane filter enters in muddy water area.
Because rigid bone rack-layer is the tubular structure of upper end opening, rigid bone rack-layer integrally has enough machinery
Intensity, during filtering and backwash, rigid bone rack-layer can support the support of the protection outside rigid bone rack-layer
The deformation of layer, fine and closely woven filter layer, fluffy transition zone and flexible adjustment layer makes to protect supporting layer, fine and closely woven filter layer, fluffy transition
Layer and flexible adjustment layer keep tubular；Because rigid bone rack-layer is equipped with multiple through-holes, through-hole is water to be filtered and recoil
Wash water provides runner, so that water or backwashing water to be filtered is passed through rigid bone rack-layer, and enable backwashing water
Flushing multilayer composite fiber membrane module more evenly.
Because protection supporting layer, fine and closely woven filter layer, fluffy mistake are successively arranged on the outside of the barrel of rigid bone rack-layer from inside to outside
Layer and flexible adjustment layer are crossed, the hole of flexible adjustment layer is greater than the hole of fluffy transition zone, and the hole of fluffy transition zone is greater than thin
The hole of close filter layer, so water to be filtered successively passes through flexible adjustment layer, fluffy transition zone and fine and closely woven filtering in filtering
When layer, filtering accuracy is higher and higher, realizes to the gradient filtration of water to be filtered, can either improve filtering accuracy, and can reduce
The filter pressure of each filter layer improves the service life of each filter layer；In backwash, backwashing water successively passes through rigid bone
Rack-layer, protection supporting layer, fine and closely woven filter layer, fluffy transition zone and flexible adjustment layer, can make to sweep along the impurity quilt on each layer
It rinses out, and without being adhered on other layers, such as the impurity being attached on fine and closely woven filter layer is rinsed being backwashed water
After be detached from fine and closely woven filter layer, since the hole of fluffy transition zone is greater than fine and closely woven filter layer, so being detached from from fine and closely woven filter layer
Impurity will not continue to caulked on fluffy transition zone, is easy to rinse the impurity swept along, realizes the gradient washes to impurity, improves
Backwash effect, convenient for backwash, without frequently replacement, long service life, save the cost；And without using quartz sand, nothing
Bituminous coal, active carbon particle as filter medium avoid that water pollution caused by due to using filter medium, water resource wave occurs
The problem of taking.
In conclusion the area for being effectively separated by filtration impurity of the invention includes rigid bone rack-layer, protects supporting layer, is thin
Close filter layer, fluffy transition zone and flexible adjustment layer, are far longer than the sectional area of barrel diameter, so effective mistake of the invention
Filter area ratio is far longer than 1, and effective filtration area ratio has reached 8-12, substantially increases effective mistake of prior art filter
Area ratio is filtered, and then greatly reduces the diameter and height of prior art filter, reduces the investment of equipment and engineering, is reduced
Operating cost.
2, because cylinder upper end is connect with end socket, end socket is hemisphere shell structure, and end socket top is connect with upper tube, in upper tube
End is connect with outlet pipe and flushing pipe, so backwashing water can be allowed to enter in cylinder by flushing pipe and upper tube when backwash
Portion；When filtering, flowed out by the filtered filtering after-purification water of multilayer composite fiber membrane module by upper tube and outlet pipe；Cause
It is connect for upper tube lower end with upper stabilier, so backwashing water can be allowed to be evenly distributed to every multilayer composite fiber membrane module
On；Because cylinder bottom end is connect with down tube, down tube lower end is connect with water inlet pipe and sewage pipe, so water energy to be filtered is enough passed through
Water inlet pipe and down tube enter inner barrel；And sewage can be flowed out from down tube and sewage pipe in cylinder；Because of down tube upper end
It is connect with lower stabilier, so water to be filtered can be made to be evenly distributed on every multilayer composite fiber membrane module, it is ensured that mistake
Drainage is uniformly without bias current；In addition, intaking from below, the partial impurities in water to be filtered can be made to be settled by self gravity.
3, because water hole is equipped with porous plate, filtering after-purification water needs to enter clean water area by porous plate, instead
Flushing water is also required to enter in multilayer composite fiber membrane module by porous plate, and porous plate is not only further to filtering after-purification
Water and backwashing water are filtered, and backwashing water can be made to be dispersed when entering multilayer composite fiber membrane module, more
It is so uniform that enter multilayer composite fiber membrane module；Because porous plate passes through closed locking device and multilayer composite fiber membrane module
Connection, so can prevent filtering after-purification water from not passing through porous plate and be directly entered clean water area, and prevent backwashing water without
It crosses porous plate and enters multilayer composite fiber membrane module, closed locking device keeps porous plate and multilayer composite fiber membrane module close
Contact, prevents side leakage.
4, because being equipped with people Guan Yi above partition, people's pipe two, people Guan Yiyu people Guan Erjun and cylinder side are equipped with below partition
Wall connection, so the clean water area people Guan Yiyu is connected to, people's pipe two is connected to muddy water area, can install or replace more convenient for staff
Layer composite fibre membrane module and easy cleaning clean water area and muddy water area can because cylinder lateral wall is equipped with visor
Staff is facilitated to observe the situation of inner barrel in filtering and backwash.
5, because the warp thread weft yarn of plain weave construction intersects closely, intertwined point is dense, so making to protect supporting layer harder
Very, anti-tear tensile strength is high, also indeformable under the hydraulic blow of water to be filtered and backwashing water；Wear-resisting property is good, in impurity
It is also hardly damaged under the friction of particle, improves the service life of protection supporting layer；Moreover, protection supporting layer is arranged in rigidity
, can be in filtering between casing play and fine and closely woven filter layer, protection support layer supports live fine and closely woven filter layer, help fine and closely woven filtering
Layer withstands the impulse force of water to be filtered, prevents fine and closely woven filter layer from excessively inside contracting under the impulse force of water to be filtered, makes fine and closely woven filter layer
Hole reduce, reduce water amount；And can be in backwash, protection supporting layer helps fine and closely woven filter layer to keep out recoil
The impulse force of wash water prevents fine and closely woven filter layer from excessively flexing outward under the impulse force of flushing water, increases the hole of fine and closely woven filter layer
Greatly, filtering accuracy and pollutant holding capability are reduced.Because fine and closely woven filter layer is nonwoven fabric construct, fine and closely woven with nonwoven fabric construct
Filter layer possesses the advantage that non-woven fabrics intensity is high, flexible, non-toxic and tasteless, cheap.Because fluffy transition zone is terry pile structure
Structure, terry pile structure quality is soft, and lofting effect is good, can be quickly fluffy in backwash, and fluffy transition zone is propped up in help
Outer flexible adjustment layer.Because flexible adjustment layer is knitting technology weave structure, knitting technology weave structure has good retractility, from
And make flexible adjustment layer that there is outstanding elastic property.
In filtering, each layer of multilayer composite fiber membrane module is sticked together, and water energy to be filtered is made enough to continue through filtering
Component, and the hole of each layer further reduces, and further increases filtering accuracy, realizes and filters closely knit effect；It is backwashing
When, each layer hole meeting further expansion, the impurity for conveniently allowing each layer to carry is detached from film layer with water impact, reaches thorough cleaning
Purpose, have the advantages that backwash is fluffy.In conclusion multilayer composite fiber membrane module of the invention is not only close in outer dredge
Gradient-structure, and have elasticity, realize filtering it is closely knit, the fluffy effect of backwash further increases filtering accuracy and recoil
Effect is washed, extends the service life of multilayer composite fiber membrane module, it is dense to be suitable for continuously and automatically liquid filtration, purification and feed liquid
The process of contracting.
6, because through-hole is circle, it can be more convenient the processing of rigid bone rack-layer through-hole, the diameter of through-hole is preferably 4-
On the one hand 5mm avoids increasing water amount because through-hole is excessive, the mechanical strength of firm casing play reduces；On the other hand, prevent
Only because through-hole is too small, water amount is reduced.
7, because the yarn of protection supporting layer uses filament fiber, the protection support formed of being weaved by filament fiber
Layer is fewer than the protection supporting layer connector that is formed of being weaved by staple fiber, and flexibility is good, high mechanical strength；It is weaved by staple fiber
The protection supporting layer connector of formation is more, in filtering and backwash, protection supporting layer easily joint disconnect, mechanical strength and
Flexibility is poor；Protecting supporting layer is preferably 2/2 plain weave construction, is the plain weave construction due to 2/2 than 1/1 plain weave group
It knits that structure yarn strength is high, flexibility is good, is not easy to break, long service life；Because protecting the pore diameter of supporting layer is 60-
100 μm, so protection supporting layer can filter out the impurity that partial size is greater than 100 μm, protecting the porosity of supporting layer is 40%,
So protection supporting layer water amount with higher.
8, because the pore diameter of fine and closely woven filter layer is 10-50 μm, the porosity of fine and closely woven filter layer is 40%-50%, institute
The impurity that partial size is greater than 50 μm can be at least filtered with fine and closely woven filter layer, the filtering accuracy of fine and closely woven filter layer is than fluffy transition
The filtering accuracy of layer is higher, and filter quality is more preferable, and water amount with higher；Because fine and closely woven filter layer uses polypropylene
Fiber, polypropylene fibre is synthetic fibers made of the isotactic polypropylene obtained using propylene polymerization is spinned as raw material, so can
Make fine and closely woven filter layer also and have that polypropylene fibre light weight, intensity are high, elasticity is good, wear resistant corrosion resistant, heat-resisting, ageing-resistant etc. excellent
Elegant performance.
9, because the yarn of fluffy transition zone uses filament fiber, being weaved by filament fiber, it is fluffy excessive to be formed
Layer is fewer than the fluffy excessive layer connector that is formed of being weaved by staple fiber, and flexibility is good, high mechanical strength；It is weaved by staple fiber
Formed fluffy excessive layer connector it is more, in filtering and backwash, fluffy excessive layer easily joint disconnect, mechanical strength and
Flexibility is poor；Because the pore diameter of fluffy transition zone is 200-300 μm, the porosity 40% of fluffy transition zone, so fluffy
Excessive layer can at least filter the impurity that partial size is greater than 300 μm, and the hole of fluffy transition zone is greater than the hole of flexible adjustment layer,
To make water to be filtered that can further be filtered after fluffy transition zone, filtering accuracy is improved, and have higher
Water amount.
10, because the yarn of flexible adjustment layer uses filament fiber, the flexible adjustment formed of being weaved by filament fiber
Layer is fewer than the flexible adjustment layer connector that is formed of being weaved by staple fiber to have higher elastic and intensity；Because filament fiber is used
Knitting method forms the flexible adjustment layer of crossings on different level, so further strengthening the elasticity of flexible adjustment layer；Because elasticity is adjusted
The pore diameter of ganglionic layer is greater than 300 μm, and the porosity of flexible adjustment layer is 30-40%, so flexible adjustment layer can filter
Partial size is greater than 300 μm of impurity, and water amount with higher；When backwash, under hydraulic blow, flexible adjustment layer fills
Divide stretching, extension fluffy, sewage draining exit is discharged with water flow in the impurity being trapped on flexible adjustment layer, and blowdown, which finishes, may filter that operation, bullet
Property regulating course restores good strainability again, does not need positive flushing process.
Detailed description of the invention
Fig. 1 is a kind of half sectional view of multilayer composite fiber membrane filter；
Fig. 2 is a kind of top view of multilayer composite fiber membrane filter；
Fig. 3 is a kind of structural schematic diagram of multilayer composite fiber membrane filter；
Fig. 4 is the structural schematic diagram of closed locking device；
Fig. 5 is the structural schematic diagram of rigid bone rack-layer；
Fig. 6 is the structural schematic diagram of plain weave construction；
Fig. 7 is the cross-sectional view of Fig. 6 A-A；
Fig. 8 is the partial structural diagram for protecting 2/2 plain weave construction of supporting layer；
Fig. 9 is the filtering operating status schematic diagram of multilayer composite fiber membrane module；
Figure 10 is the backwashing state schematic diagram of multilayer composite fiber membrane module；
Figure 11 is the partial enlarged view at Figure 10 B.
Description of symbols: 1- cylinder, the clean water area 101-, 102- muddy water area, 2- partition, 3- multilayer composite fiber film group
Part, 4- supporting leg, 5- down tube, 6- flange three, 7- people's pipe two, 8- flange one, 9- blind flange, 10- people's Guan Yi, 11- visor, 12- are hung
Ear, 13- exhaust valve, 14- upper tube, 15- flange two, 16- end socket, the upper stabilier of 17-, stabilier under 18-, 19- flushing pipe, 20-
Back flush valves, 21- flowing water Valve, 22- outlet pipe, 23- water inlet pipe, 24- inlet valve, 25- sewage draining valve, 26- blowdown
Pipe, 27- porous plate, the closed locking device of 31-, 32- rigid bone rack-layer, 33- through-hole, 34- protect supporting layer, the fine and closely woven filtering of 35-
Layer, the fluffy transition zone of 36-, 37- flexible adjustment layer, 38- warp thread, 39- weft yarn, 40- intertexture hole.
It is worth noting that, in the description of the present invention, term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
Specific embodiment
For a better understanding of the present invention, the present invention will be further elaborated with reference to the accompanying drawing.
Embodiment 1:
A kind of multilayer composite fiber membrane filter, as shown in Figure 1-3, including cylinder 1, middle part level is set in the cylinder 1
There is partition 2, partition 2 is connect with 1 inner wall of cylinder, and partition 2 will be divide into upper part and lower part in cylinder 1, and top is divided into clean water area 101,
Lower part is divided into muddy water area 102, is equipped with multilayer composite fiber membrane module 3 below partition 2, multilayer composite fiber membrane module 3 by every
Water hole on plate 2 is connected to clean water area 101, and multilayer composite fiber membrane module 3 is connect with partition 2, multilayer composite fiber film group
Part 3 includes rigid bone rack-layer 32, as shown in figure 5, rigid bone rack-layer 32 is the thin-walled tubular structure of upper end opening, rigid backbone
Through-hole 33 is densely covered on the barrel of layer 32, and through-hole 33 is circular hole, and the diameter of through-hole 33 is 4mm, outside the barrel of rigid bone rack-layer 32
Side is successively arranged protection supporting layer 34, fine and closely woven filter layer 35, fluffy transition zone 36 and flexible adjustment layer 37 from inside to outside, because
Rigid bone rack-layer 32 is the thin-walled tubular structure of upper end opening, so rigid bone rack-layer 32 is whole to have enough mechanical strengths,
During filtering and backwash, rigid bone rack-layer 32 can support the protection supporting layer outside rigid bone rack-layer 32
34, the deformation of fine and closely woven filter layer 35, fluffy transition zone 36 and flexible adjustment layer 37 makes to protect supporting layer 34, fine and closely woven filter layer
35, fluffy transition zone 36 and flexible adjustment layer 37 keep tubular；Rigid bone rack-layer whole 32 not only has enough mechanical strong
Degree also has certain toughness, and during filtering and backwash, rigid bone rack-layer 32 itself can also occur subtle
Flexible deformation can play certain buffering effect to water flow, and then reduce the impact force that rigid bone rack-layer 32 is subject to itself
Degree improves the service life of rigid bone rack-layer 32.Because being densely covered with through-hole 33, through-hole on the barrel of rigid bone rack-layer 32
33 provide runner for water to be filtered and backwashing water, and water or backwashing water to be filtered can be made to pass through rigid bone rack-layer 32；
Because through-hole 33 is circle, it is more convenient the processing of 32 through-hole 33 of rigid bone rack-layer, in addition to circular through hole, through-hole 33 can also be ellipse
The geometries such as circle, bar shaped.
In addition, rigid bone rack-layer 32 can also be stainless steel wire mesh grid, so rigid bone rack-layer 32 no longer needs to be rushed
Hole, stainless steel mesh grid inherently has existed the runner for allowing water and backwashing water to be filtered to flow through, and stainless steel is compiled
Knitmesh has good corrosion resistance, improves the service life of rigid bone rack-layer 32；If rigid bone rack-layer 32 is punched-plate
Net similarly can provide runner for water to be filtered and backwashing water.
Protection supporting layer 34 is plain weave construction, and plain weave construction is as shown in Figures 6 and 7, is warp thread 38 and weft yarn 39
Interweave the fabric construction formed according to intertexture rule one on the other, i.e. warp thread 38 and weft yarn 39 just interweaves one every a yarn
Secondary, intertexture hole 40 is rectangle.Because 38 weft yarn 39 of warp thread of plain weave construction intersects closely, intertwined point is dense, front and back sides
It is not different, so making to protect supporting layer 34 more stiffening, anti-tear tensile strength is high, in the hydraulic blow of high-voltage high-speed positive and negative direction
Under it is also indeformable；Wear-resisting property is good, is also hardly damaged under the friction of impurity particle, improves the use of protection supporting layer 34
Service life；Moreover, protection supporting layer 34 is arranged between rigid bone rack-layer 32 and fine and closely woven filter layer 35, can be protected in filtering
Shield supporting layer 34 supports fine and closely woven filter layer 35, helps fine and closely woven filter layer 35 to withstand the impulse force of water to be filtered, prevents fine and closely woven mistake
Filtering layer 35 excessively inside contracts under the impulse force of water to be filtered, reduces the hole of fine and closely woven filter layer 35, reduces water amount；And energy
Enough in backwash, protection supporting layer 34 helps fine and closely woven filter layer 35 to keep out the impulse force of backwashing water, prevents fine and closely woven filter layer
35 excessively flex outward under the impulse force of backwashing water, increase the hole of fine and closely woven filter layer 35, reduction filtering accuracy and dirt of receiving
Amount.
Supporting layer 34 is protected to use filament fiber, the protection supporting layer 34 formed of being weaved by filament fiber is more fine than by short silk
34 connector of protection supporting layer that dimension weaving is formed is few, and flexibility is good, high mechanical strength；It is weaved by staple fiber the protection formed
34 connector of supporting layer is more, and in filtering and backwash, protection supporting layer 34 is easily disconnected in joint, mechanical strength and flexibility
Difference.Protection supporting layer 34 is 2/2 plain weave construction, as shown in figure 8, indicating every in Weaving Cycle under 2/2 pronounces two on two
On one thread is 2 through tissue points, and latitude tissue points are 2.Yarn of 2/2 plain weave construction than 1/1 plain weave construction
Intensity is high, flexibility is good, is not easy to break, long service life, because 2/2 plain weave construction is when weaving molding, Mei Gejing
Yarn 38 and weft yarn 39 can all have certain stubborn degree, to keep yarn strength higher；Protection supporting layer 34 pore diameter be
60-100 μm, porosity 40%, then big 100 μm of the impurity of partial size can be filtered by protecting supporting layer 34 at least.
Fine and closely woven filter layer 35 is nonwoven fabric construct, and non-woven fabrics is a kind of fabric for not needing spinning and weaving and being formed, only
Textile staple or filament fiber are oriented or randomizing, fibre net structure is formed, then using mechanical, hot sticky or
Chemical method is reinforced.Fine and closely woven filter layer 35 with nonwoven fabric construct possess non-woven fabrics intensity it is high, it is flexible, non-toxic and tasteless,
Cheap advantage；According to influent quality and water quality treatment requirement, the pore diameter of fine and closely woven filter layer 35 is 10-50 μm, carefully
Close 35 porosity of filter layer is 40%-50%, so fine and closely woven filter layer 35 can at least filter the impurity that partial size is greater than 50 μm,
Fine and closely woven filter layer 35 uses polypropylene fibre, and polypropylene fibre is that the isotactic polypropylene obtained using propylene polymerization is spinned as raw material
Made of synthetic fibers so that fine and closely woven filter layer 35 also has, polypropylene fibre light weight, intensity are high, elasticity is good, it is corrosion-resistant,
The excellent in performance such as high temperature resistant.
Fluffy transition zone 36 is terry pile structure structure, and terry pile structure quality is soft, and lofting effect is good, can backwash
When, it is quickly fluffy, it helps to prop up the flexible adjustment layer 37 outside fluffy transition zone 36；The yarn of fluffy transition zone 36 uses long filament
Fiber, the fluffy excessive layer 36 formed of being weaved by filament fiber is than fluffy excessive 36 connector of layer formed of being weaved by staple fiber
Few, flexibility is good, high mechanical strength；Fluffy excessive 36 connector of layer formed of being weaved by staple fiber is more, is filtering and is backwashing
When, fluffy excessive layer 36 is easily disconnected in joint, and mechanical strength and flexibility are poor；The pore diameter of fluffy transition zone 36 is
200-300 μm, so the optimal impurity that can be filtered partial size and be greater than 200 μm of fluffy transition zone 36, fluffy 36 hole of transition zone
Rate 40% increases the pollutant holding capability of fluffy transition zone 36.
The flexible adjustment layer 37 is knitting technology weave structure, and knitting technology weave structure has good retractility, to make bullet
Property regulating course 37 have outstanding elastic property；The yarn of flexible adjustment layer 37 uses filament fiber, the length of flexible adjustment layer 37
Silk fiber further improves elasticity, and the flexible adjustment of crossings on different level is formed with knitting method by adding bullet and modification
The pore diameter of layer 37, flexible adjustment layer 37 is greater than 300 μm, and knitting technology weave structure interval is larger, increases multilayer composite fiber
The pollutant holding capability of membrane module 3 enables flexible adjustment layer 37 to filter the impurity that partial size is greater than 300 μm, the hole of flexible adjustment layer 37
Rate is 30-40%.When backwash, under hydraulic blow, flexible adjustment layer 37 is fully extended fluffy, is trapped in flexible adjustment layer
Impurity on 37 is discharged with water flow, and blowdown, which finishes, may filter that operation, and flexible adjustment layer 37 restores good strainability again,
Positive flushing process is not needed.
Because the yarn of flexible adjustment layer 37 uses the filament fiber by adding bullet and modification, by by adding
Bullet and the filament fiber of modification weave the flexible adjustment layer 37 to be formed than the flexible adjustment layer formed of being weaved by staple fiber
37 connectors have higher elasticity and intensity less；Because by adding the filament fiber of bullet and modification to be formed with knitting method
The flexible adjustment layer 37 of crossings on different level, so further strengthening the elasticity of flexible adjustment layer 37.
The pore diameter of flexible adjustment layer 37 is greater than 300 μm, and the pore diameter of fluffy transition zone 36 is 200-300 μm, carefully
The pore diameter of close filter layer 35 is 10-50 μm, so the hole of flexible adjustment layer 37 is greater than the hole of fluffy transition zone 36,
The hole of fluffy transition zone 36 is greater than the hole of fine and closely woven filter layer 35.To which in filtering, water to be filtered is successively adjusted by elasticity
When ganglionic layer 37, fluffy transition zone 36 and fine and closely woven filter layer 35, filtering accuracy is higher and higher, realizes the gradient mistake to water to be filtered
Filter, can either improve filtering accuracy, and can reduce the filter pressure of each filter layer, improve the service life of each filter layer；?
When backwash, backwashing water successively passes through rigid bone rack-layer 32, protection supporting layer 34, fine and closely woven filter layer 35, fluffy transition zone
36 and flexible adjustment layer 37, can when the impurity that is attached on each layer be rinsed, and without being adhered on other layers, example
The impurity being such as attached on fine and closely woven filter layer 35 is detached from fine and closely woven filter layer 35 after being backwashed water and rinsing, due to fluffy transition
The hole of layer 36 is greater than fine and closely woven filter layer 35, so, the impurity being detached from from fine and closely woven filter layer 35 will not continue to be attached to fluffy
On transition zone 36, the gradient washes to impurity are realized.
Top, the protection top of supporting layer 34, the top of fine and closely woven filter layer 35, fluffy transition zone of rigid bone rack-layer 32
36 top is connected with the top of flexible adjustment layer 37 by connector, can by connector by rigid bone rack-layer 32, protection
Supporting layer 34, fine and closely woven filter layer 35, fluffy transition zone 36 and flexible adjustment layer 37 top be secured together, and will not hamper
Hinder the filtering of each layer closely knit, the fluffy effect of backwash.
The overall thickness 15-20mm of multilayer composite fiber membrane module 3, wherein 32 thickness 1-2mm of rigid bone rack-layer.Protection branch
Support 34 thickness 2-3mm of layer, fine and closely woven 35 thickness 2-3mm of filter layer, fluffy transition zone 36 with a thickness of 2-3mm, flexible adjustment layer 37
Thickness 3-4mm is targetedly designed according to influent quality and water quality treatment requirement.
Further, it is equipped with people's pipe 1 above the partition 2, is equipped with people's pipe 27, people's pipe 1 and people below partition 2
Pipe 27 is connect with 1 side wall of cylinder, so that people's pipe 1 is connected to clean water area 101, people's pipe 27 is connected to muddy water area 102, people
The one end of pipe 1 and people's pipe 27 far from cylinder 1 is connect with flange 1, flange 1 one end and blind flange far from cylinder 1
9 are bolted；1 side wall of cylinder is equipped with visor 11, there are four visor 11 is set, specifically on front side of 1 side wall upper part of cylinder and
Rear side is respectively provided with one, and 1 lower sidewall of cylinder front side and rear side are respectively provided with one.
Further, 1 upper end of cylinder is connect with end socket 16, end socket 16 be hemisphere shell structure, 16 top of end socket with it is upper
Pipe 14 connects, and 14 upper end of upper tube is connect by flange 2 15 with outlet pipe 22 and flushing pipe 19, and outlet pipe 22 is equipped with outlet valve
Door 21, flushing pipe 19 are equipped with back flush valves 20, and 14 lower end of upper tube is connect with upper stabilier 17, and upper stabilier 17 is set to net
In pool 101,16 top of end socket is additionally provided with exhaust valve 13 and lifting lug 12, and exhaust valve 13 and lifting lug 12 are connect with end socket 16；Institute
It states 1 bottom end of cylinder to connect with down tube 5,5 lower end of down tube is connect by flange 36 with water inlet pipe 23 and sewage pipe 26, water inlet pipe
23 are equipped with inlet valve 24, and sewage pipe 26 is equipped with sewage draining valve 25, and 5 upper end of down tube is connect with lower stabilier 18, lower current stabilization
Plate 18 is set in muddy water area 102；1 lower part of cylinder is equipped with multiple supporting legs 4, and supporting leg 4 is connect with 1 lower weld of cylinder.
Further, as shown in figure 4, the water hole is equipped with porous plate 27, porous plate 27 passes through closed locking device
31 connect with multilayer composite fiber membrane module 3.Closed locking device 31 is the prior art, and 31 sets of closed locking device is in multilayer
3 upper end of composite fibre membrane module, porous plate 27 be placed on 32 edge upper surface of rigid bone rack-layer and closed locking device 31 it
Between, the three-jaw of closed locking device 31 rotates clockwise, and makes the continuous clamping of the butt end of pawl, to realize porous plate 27 and multilayer
The close contact of composite fibre membrane module 3.
When work:
When filtering operation, as shown in Fig. 3,9,11, using external pressure water inlet filter type, inlet valve 24 and water outlet are opened
Valve 21, closes back flush valves 20 and sewage draining valve 25, and water to be filtered flows into cylinder 1 by water inlet pipe 23 and down tube 5
Water to be filtered is evenly distributed on every multilayer composite fiber membrane module 3 by portion, lower stabilier 18, it is ensured that water to be filtered is uniform
Without bias current, water to be filtered is uniformly distributed in the surface of entire multilayer composite fiber membrane module 3, and water to be filtered is fine from MULTILAYER COMPOSITE
The outside of dimension membrane module 3 enters internal layer, specifically, water to be filtered first passes around flexible adjustment layer 37, the partial size in water to be filtered
Impurity greater than 300 μm is trapped in outside flexible adjustment layer 37 or is attached to 37 table of flexible adjustment layer by flexible adjustment layer 37
Face encounters fluffy transition zone 36 by the water that flexible adjustment layer 37 filters, and fluffy transition zone 36 intercepts in water to be filtered again
The impurity that partial size is 200-300 μm, encounters fine and closely woven filter layer 35, fine and closely woven filter layer by the filtered water of fluffy transition zone 36
35 filter out the smaller impurity of partial size, are then passed through protection supporting layer 34 by the filtered water of fine and closely woven filter layer 35, and enter
Rigid bone rack-layer 32 enters clean water area 101 finally by porous plate 27, then flows into outlet pipe 22 from clean water area 101, completes
Filter.In this filter process, water to be filtered progresses into inside from the outside of multilayer composite fiber membrane module 3, due to
It crosses under the impact of drainage and the deflationary pressure of flexible adjustment layer 37, protection supporting layer 34 in multilayer composite fiber membrane module 3,
The fluffy transition zone 36 of fine and closely woven filter layer 35 and flexible adjustment layer 37 are closely packed together, and the outer of formation dredges interior close " ideal filtering layer ",
Water to be filtered continues through the outer of flexible adjustment layer 37, fluffy transition zone 36, fine and closely woven filter layer 35 and the protection formation of supporting layer 34
In dredging close " ideal filtering layer ", and the impurity descending by gradually retention partial size, fixed partial size can only be retained than the prior art
Impurity particle filtering material, substantially increase the precision of filtering, larger particles impurity is trapped within 37 table of flexible adjustment layer
Face, medium grain impurity is retained by fluffy transition zone 36, and fine particle impurity is then trapped in fine and closely woven filter layer 35, real
Existing multilayer depth-type filtration.And the porosity of each layer is much higher than existing traditional filter material medium, substantially increases pollutant holding capability, multilayer
The pollutant holding capability of composite fibre membrane module 3 is 10-15 times of conventional core type filter, and clear water is by multilayer composite fiber film after filtering
The clean water area 101 on 27 top of porous plate is outflow together on the inside of component 3；Impurity is then intercepted at multilayer composite fiber membrane module 3
Outside.
Backwash process: as shown in Fig. 3,10,11, when impurity retention is more, inlet valve: 24 and flowing water Valve is closed
21；Back flush valves 20 and sewage draining valve 25 are opened, filtering after-purification water enters in cylinder 1 by flushing pipe 19 and upper tube 14
Portion, filtering after-purification water rinse multilayer composite fiber membrane module 3, can restore the good filtering of multilayer composite fiber membrane module 3
Performance.Specifically, backwashing water successively continues through protection supporting layer 34, fine and closely woven filter layer 35, fluffy transition zone 36 and elasticity
Regulating course 37, under hydraulic blow, the voluntarily fluffy stretching, extension shake of each layer makes to protect supporting layer 34, fine and closely woven filter layer 35, fluffy
Transition zone 36 and flexible adjustment layer 37 are successively gradually loosened；Each layer no longer sweeps along clamping to the impurity of retention, is trapped in thin
Impurity on close filter layer 35, fluffy transition zone 36 and flexible adjustment layer 37 is rinsed, and realizes the reproducibility of " layering backwash "
Can, be easy to backwash, can repeated flushing be used for a long time, improve service life；Filtering after-purification water can be used directly as anti-
Flushing water can be backwashed thoroughly.Multilayer composite fiber membrane module 3 has the advantages of high-precision, fast filtering velocity, easy backwash, fits
Together in the process that continuously and automatically liquid filtration, purification and feed liquid are concentrated, it by fiber filtering cut the good feature of dirty performance with
The good feature of grain filtrate backwash effect combines, moreover, the high porosity of multilayer composite fiber membrane module 3 and it is outer dredge in it is close
Reasonable graduation, it is ensured that realized simultaneously with fast filtering velocity in high precision.Sewage after flushing is released by blow-off line.
The present invention suitable for the coarse filtration of any fine particle or suspended matter, filter, refined filtration.Multilayer composite fiber membrane module 3
It may filter that granule foreign, suspended matter, silt, iron rust, heavy metal etc. in water removal.
A kind of all components of multilayer composite fiber membrane filter are standard model, versatile.Filter is paddled portion
Part uses stainless steel material, and burn into intensity is not big, high pressure resistant.A kind of multilayer composite fiber membrane filter is raw by standard assembly line
It produces, it is ensured that equipment quality and rapid-maintenance, and structure of the invention is reasonable, small in size, efficient, the easy to operate, applicability of operation
By force, the new technology theory of " environmental protection, energy conservation " is really embodied.
Embodiment 2:
A kind of multilayer composite fiber membrane filter, structure composition is same as Example 1, the difference is that: through-hole 33
Diameter be 3mm.
Embodiment 3:
A kind of multilayer composite fiber membrane filter, structure composition is same as Example 1, the difference is that: through-hole 33
Diameter be 5mm.
Embodiment 4:
A kind of multilayer composite fiber membrane filter, structure composition is same as Example 1, the difference is that: through-hole 33
Diameter be 6mm.
Embodiment 5:
In embodiment 1-4, different 33 sizes of through-hole of rigid bone rack-layer 32 are mechanical to water amount and rigid bone rack-layer 32
The influence of intensity, as shown in table 1:
Influence of the 1 rigid bone rack-layer difference hole size of table to water amount, rigid bone rack-layer mechanical strength
As known from Table 1, the diameter of through-hole 33 is preferably 4-5mm, on the one hand avoids making water amount because through-hole 33 is excessive
Increase, the mechanical strength of rigid bone rack-layer 32 reduces；On the other hand, it prevents because through-hole 33 is too small, what water amount was reduced
Problem.
Claims (10)
1. a kind of multilayer composite fiber membrane filter, including cylinder, which is characterized in that middle part is equipped with partition in the cylinder, every
Plate is connect with cylinder inboard wall, and partition will be divide into upper part and lower part in cylinder, and top is divided into clean water area, and lower part is divided into muddy water area, every
Multilayer composite fiber membrane module is equipped with below plate, multilayer composite fiber membrane module is connected by the water hole on partition with clean water area
Logical, multilayer composite fiber membrane module includes rigid bone rack-layer, and rigid bone rack-layer is the tubular structure of upper end opening, rigid bone rack-layer
Barrel be equipped with multiple through-holes, protection supporting layer, fine and closely woven filtering are successively arranged on the outside of the barrel of rigid bone rack-layer from inside to outside
Layer, fluffy transition zone and flexible adjustment layer, the hole of flexible adjustment layer are greater than the hole of fluffy transition zone, the hole of fluffy transition zone
Gap is greater than the hole of fine and closely woven filter layer.
2. a kind of multilayer composite fiber membrane filter according to claim 1, which is characterized in that the cylinder upper end and envelope
Head connection, end socket are hemisphere shell structure, and end socket top is connect with upper tube, and upper tube upper end is connect with outlet pipe and flushing pipe, upper tube
Lower end is connect with upper stabilier, and cylinder bottom end is connect with down tube, and down tube lower end is connect with water inlet pipe and sewage pipe, down tube upper end with
Lower stabilier connection.
3. a kind of multilayer composite fiber membrane filter according to claim 1, which is characterized in that the water hole is equipped with
Porous plate, porous plate are connect by closed locking device with multilayer composite fiber membrane module.
4. a kind of multilayer composite fiber membrane filter according to claim 1, which is characterized in that be equipped with above the partition
People Guan Yi, partition lower section are equipped with people's pipe two, and people Guan Yiyu people Guan Erjun is connect with cylinder lateral wall, and cylinder lateral wall is equipped with visor.
5. a kind of multilayer composite fiber membrane filter according to claim 1, which is characterized in that the protection supporting layer is
Plain weave construction, fine and closely woven filter layer are nonwoven fabric construct, and fluffy transition zone is terry pile structure structure, and flexible adjustment layer is knitting
Institutional framework.
6. a kind of multilayer composite fiber membrane filter according to claim 5, which is characterized in that the through-hole is circular hole,
The diameter of through-hole is 4-5mm.
7. a kind of multilayer composite fiber membrane filter according to claim 6, which is characterized in that the protection supporting layer is
2/2 plain weave construction protects the yarn of supporting layer using filament fiber, and protecting the pore diameter of supporting layer is 60-100um,
The porosity for protecting supporting layer is 40%.
8. a kind of multilayer composite fiber membrane filter according to claim 7, which is characterized in that the fine and closely woven filter layer
Pore diameter is 10-50um, and the porosity of fine and closely woven filter layer is 40%-50%, and fine and closely woven filter layer uses polypropylene fibre.
9. a kind of multilayer composite fiber membrane filter according to claim 8, which is characterized in that the fluffy transition zone
Yarn uses filament fiber, and the pore diameter of fluffy transition zone is 200-300um, and the porosity of fluffy transition zone is 40%.
10. a kind of multilayer composite fiber membrane filter according to claim 9, which is characterized in that the flexible adjustment layer
Yarn use filament fiber, the pore diameter of flexible adjustment layer is greater than 300um, and the porosity of flexible adjustment layer is 30-40%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111635047A (en) * | 2020-06-16 | 2020-09-08 | 浙江开创环保科技股份有限公司 | Membrane filter |
| WO2022123403A1 (en) * | 2020-12-09 | 2022-06-16 | 3M Innovative Properties Company | Laminated sheet, cylindrical filter element, and filtration kit used to perform water filtration |
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