CN107551826A - The manufacturing equipment of asymmetric tubular filter element base substrate - Google Patents
The manufacturing equipment of asymmetric tubular filter element base substrate Download PDFInfo
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- CN107551826A CN107551826A CN201710637698.1A CN201710637698A CN107551826A CN 107551826 A CN107551826 A CN 107551826A CN 201710637698 A CN201710637698 A CN 201710637698A CN 107551826 A CN107551826 A CN 107551826A
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- Prior art keywords
- supporter
- filter element
- sealing
- tubular filter
- base substrate
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 66
- 239000000758 substrate Substances 0.000 title claims abstract description 61
- 238000007789 sealing Methods 0.000 claims abstract description 76
- 239000002002 slurry Substances 0.000 claims abstract description 63
- 239000011248 coating agent Substances 0.000 claims abstract description 44
- 238000000576 coating method Methods 0.000 claims abstract description 44
- 238000007569 slipcasting Methods 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000005245 sintering Methods 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 8
- 239000013536 elastomeric material Substances 0.000 claims description 7
- 229920002472 Starch Polymers 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 description 51
- 239000002994 raw material Substances 0.000 description 40
- 239000010410 layer Substances 0.000 description 35
- 238000000034 method Methods 0.000 description 28
- 239000002245 particle Substances 0.000 description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 12
- 238000001914 filtration Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 239000012528 membrane Substances 0.000 description 7
- 239000002270 dispersing agent Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 235000021355 Stearic acid Nutrition 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 239000008117 stearic acid Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000003979 granulating agent Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filtering Materials (AREA)
Abstract
The invention discloses the manufacturing equipment of asymmetric tubular filter element base substrate, the asymmetric tubular filter element base substrate includes tubulose and porous supporter and the coating positioned at the supporter inwall, the inwall that the coating is attached to the supporter by slurry forms through drying, and the manufacturing equipment includes the drive component that sealing, slip casting mechanism and the driving supporter rotate in the horizontal direction；The sealing includes the first sealing and the second sealing matched respectively with the supporter both ends；The slip casting mechanism includes the slurry stream passage for making the inside and outside conducting of the supporter on first sealing and/or the second sealing；The drive component includes the motor of the rotating shaft being connected with first sealing and the second sealing and the driving axis of rotation.The present invention integrates slip casting and centrifuged, and can prepare coating in uniform thickness and production efficiency is high.
Description
Technical field
The present invention relates to asymmetric tubular filter element technical field, in particular to asymmetric tubular filter element
The manufacturing equipment of base substrate.
Background technology
Asymmetric tubular filter element refers to the asymmetric tubular filter that pore size filter changes in gradient on filtering direction
Element.The aperture of asymmetric tubular filter element is by radially increasing or reducing successively outside interior.Wherein, for the aperture according to
The endothecium structure of the asymmetric tubular filter element of secondary increase is referred to as inner membrance, and layer structure is referred to as supporter；For the aperture
The endothecium structure for the asymmetric tubular filter element being sequentially reduced is referred to as supporter, and layer structure is referred to as outer membrane；Inner membrance and outer membrane
It can be collectively referred to as film layer.
Following steps are generally included for the asymmetric tubular filter element with the film layer prepared by powder metallurgic method：
1) adhere to slurry (film powder is added in dispersant and is made) in supporting body surface and drying forms coating；2) to the branch of attachment slurry
Support body carries out double sintering, coating is converted into inner membrance or outer membrane (film layer).At present, the main preparation technology for adhering to slurry is spray
Apply or impregnate.
It is uniform due to being difficult to form thickness although spraying is it can be readily appreciated that spraying easily independently forms inner membrance or outer membrane
Coating, cause final film surface out-of-flatness, be easily filtered into sintering and crack or make the aperture of film layer uneven.
Dipping then needs to be equipped with special equipment, the outside of supporter is stained with slurry or preparation during preventing from preparing inner membrance
The inside of supporter is set to be stained with slurry during outer membrane.For example, preparing inner membrance mainly uses following methods：Certain volume slurry is prepared to fall
Enter in tubulose leaching film frock, support external surface sealing is immersed in slurry, the absorption of certain time rear supports inner surface is certain
The slurry of amount.Not only operating process is complicated for this leaching membrane process, and the slurry for having impregnated rear supports surface attachment flows downward,
A lot of current mark is formed in supporter inner surface, causes thicknesses of layers uneven, is cracked in sintering, interior membrane aperture is uneven
It is even.
The content of the invention
It is a primary object of the present invention to provide the manufacture method and manufacturing equipment of asymmetric tubular filter element base substrate, with
Solve thicknesses of layers existing for asymmetric tubular filter element of the prior art and pore-size distribution is uneven and crackle be present
The problem of.Meanwhile the manufacture method and manufacturing equipment of asymmetric tubular filter element are also provided, with excellent non-of processability
Symmetric tubular filter element.
To achieve these goals, according to an aspect of the invention, there is provided a kind of asymmetric tubular filter element base
The manufacture method of body.The asymmetric tubular filter element base substrate is including tubulose and porous supporter and positioned at the support
The coating of internal wall, the inwall that the coating is attached to the supporter by slurry form through drying, the asymmetric tubular filter
The manufacture method of element base substrate comprises the following steps：
1) supporter and slurry are obtained：The slurry includes the first raw material powder and dispersant；The aperture of the supporter is
1~3 times of the particle diameter of the first raw material powder；
2) slip casting：The slurry is injected toward the inside of the supporter；
3) coating is prepared：The supporter is put upside down and seals the both ends of the supporter, makes the supporter
Rotate in the horizontal direction, so that the first raw material powder in the slurry being had been injected into the supporter is attached under the action of the centrifugal
The inwall of the supporter, and the dispersant in the slurry having been injected into passes through the tube wall of the supporter under the action of the centrifugal, from
And obtain the precursor of the asymmetric tubular filter element base substrate；
4) dry：The precursor is dried, that is, obtains the asymmetric tubular filter element base substrate.
" the putting upside down " is the central shaft and plane-parallel for instigating the supporter；It is described " to make the supporter in water
Square to rotate " be instigate supporter rotate rotary shaft it is parallel with the central shaft；The asymmetric tubular filter member of the present invention
The manufacture method of part base substrate expects the attachment that centrifugal principle is applied to slurry first, can produce the advantage that：
1) under the action of the centrifugal force, the first raw material powder moves towards supporter so that the first raw material powder and supporter are close
Contact, it is difficult for drop-off that the adhesion between film layer and supporter, film layer after sintering can be lifted；Meanwhile traditional preparation method
It is middle to need after drying to suppress the asymmetric tubular filter element base substrate to lift the consistency of the first raw material powder,
And the first raw material powder in the asymmetric tubular filter element base substrate that the manufacture method of the application is prepared has been accumulated
It is comparatively dense, because compacting filtering can be cancelled or the time of compacting or the size of press power can be reduced；
2) for the first raw material powder in slurry due to of different sizes, the centrifugal force being subject to is also different, the first larger original of particle diameter
The centrifugal force that feed powder is subject to is big and first reaches supporting body surface, and the centrifugal force that the less first raw material powder of particle diameter is subject to is small then to be arrived
Up to supporting body surface, so that coating has the bisque structure of stratiform, and each layer has basically identical first of granular size
Raw material powder, the aperture for the film layer for sintering to obtain by such coating is more uniform, and surface is smooth, smooth；
3) dispersant by centrifugal action and through supporter tube wall so that be thrown out of, during so as to reduce dry
Between, shorten sintering time, reduce the first raw material powder in stress concentration caused by sintering, avoid film layer from cracking and pin
Hole；
4) horizontal direction of supporter under the action of the centrifugal, which rotates, not only causes what supporter various places inside contacted with slurry
Time is identical so that the thickness distribution of coating is uniform, and will not form a lot of current mark, gained film layer in supporter inner surface
Quality it is higher；
5) coating can be completely converted into by being passed through the slurry of supporter, therefore, by the addition for controlling slurry, you can control
The thickness of coating；And the method for traditional attachment slurry is difficult to the thickness for being precisely controlled coating；
6) due to the distribution of pores of supporter be it is cranky, therefore, the first raw material powder in slurry be difficult to through
The tube wall of supporter is so that be thrown out of；But if the particle diameter of the first raw material powder is larger, then the first raw material powder is just difficult to portion
Divide the hole into supporter, this can make it that the adhesion of film layer and supporter is poor, and film layer is easy to fall off；Therefore, in order to enter one
Step ensures that the first raw material powder is not thrown out of and makes film layer and the adhesion of supporter is stronger, and the aperture of the supporter is preferably institute
State the particle diameter of the first raw material powder 1~3 times；Preferably, the aperture of the supporter is the 1.8 of the particle diameter of the first raw material powder
~2.5 times；
7) slurry corresponding to the coating of thickness needed for injecting only is needed every time, without as dipping method attachment slurry
Material recycles like that；Coating in uniform thickness can be quickly formed simultaneously, production efficiency is obviously improved.
Further, the pipe thickness of the supporter is 1~6mm；The internal diameter of the supporter is 20~100mm；Institute
The thickness for stating coating is 0.01~2mm.Because therefore supporter, in order to prevent supporter from deforming, can be supported by centrifugal action
Body needs have certain thickness and internal diameter, to obtain suitable rigidity.And the aperture of film layer is smaller, therefore, when the thickness of coating
Spend for 0.01~2mm when, filter pressure can be reduced on the premise of preferable filter effect is kept by sintering the film layer of gained.It is preferred that
Ground, the pipe thickness of the supporter is 2~4mm；The internal diameter of the supporter is 30~75mm；The thickness of the coating is
0.05~1mm.
Further, the rotating speed that the supporter rotates is 100~500r/min, and the time of rotation is 2~20min.If
Rotating speed is too slow, then efficiency is too low；If rotating speed is too high, it is not only possible to causes dispersant to be quickly thrown out of and causes the first raw material powder
Not as good as being evenly distributed, can also there is higher requirement to the rigidity of supporter.Preferably, the rotating speed of the supporter rotation is
200~300r/min, the time of rotation is 5~15min.
Further, the preparation of the supporter comprises the following steps：1) the second raw material powder is prepared, then by second original
Feed powder is pressed into supporter presoma, and the supporter presoma has the shape of the supporter；2) by before the supporter
Body sintering is driven, that is, obtains the supporter.I.e. supporter and film layer are by sintering diamond bit or the ceramic porous material of sintering
Material is formed, and supporter is born the high temperature in coating sintering process, and can be in the sintering process of coating
In with film layer form metallurgical binding, adhesion is stronger；And the presoma of the supporter be by the second raw material powder direct pressing and
Into supporter easily has preferable rigidity, and the thickness of supporter can be reduced on the premise of bearing compared with high centrifugal force.
Further, the equipment that this method uses includes sealing, slip casting mechanism and the driving supporter in level
The drive component that direction rotates；The first sealing and second that the sealing includes matching with the supporter both ends respectively are close
Envelope portion；The slip casting mechanism include on first sealing and/or the second sealing make inside the supporter and
The slurry stream passage of turned on outside；The drive component includes the rotating shaft being connected with first sealing and the second sealing
And the motor of the driving axis of rotation.Thus, the device structure is simple, integrates slip casting and centrifugation, can significantly carry
Rise production efficiency.
To achieve these goals, according to another aspect of the present invention, additionally provide one kind and prepare asymmetric tubulose mistake
The method of filtering element.The method for preparing asymmetric tubular filter element comprises the following steps：
1) asymmetric tubular filter element base is prepared using the manufacture method of above-mentioned asymmetric tubular filter element base substrate
Body；
2) by the asymmetric tubular filter element blank sintering, the painting in the asymmetric tubular filter element base substrate is made
Layer is converted into the film layer with filtering function, that is, obtains the asymmetric tubular filter element.
Using the asymmetric tubular filter element prepared by the manufacture method as above-mentioned asymmetric tubular filter element base substrate
Base substrate sinters the thickness and even aperture distribution of the film layer in the asymmetric tubular filter element of acquisition, will not crack and
Pin hole.The film layer is inner membrance.
Further, the supporter and the film layer are by sintering diamond bit or sintering of the same race with compatibility
Ceramic porous material is formed.Thus, it is possible to ensure because material is different not depart between supporter and film layer.
Further, the particle diameter of the first raw material powder is 1~12 μm；The second raw material powder is particle diameter for -200~+
400 mesh.Thus, the aperture and the particle diameter of the first raw material powder for easily making supporter match, and obtain the suitable asymmetric pipe in aperture
Shape filter element.
To achieve these goals, according to another aspect of the present invention, asymmetric tubular filter element base is additionally provided
The manufacturing equipment of body, the asymmetric tubular filter element base substrate is including tubulose and porous supporter and positioned at the support
The coating of internal wall, the inwall that the coating is attached to the supporter by slurry form through drying, and the manufacturing equipment includes
The drive component that sealing, slip casting mechanism and the driving supporter rotate in the horizontal direction；The sealing includes difference
The first sealing and the second sealing matched with the supporter both ends；The slip casting mechanism is included located at the described first sealing
The slurry stream passage for making the inside and outside conducting of the supporter in portion and/or the second sealing；The drive component bag
Include the motor of the rotating shaft being connected with first sealing and the second sealing and the driving axis of rotation.
In use, the oar body for producing coating to be injected to the inside of supporter from slurry stream passage, then starting motor makes
Axis of rotation, you can rotate supporter.It can be seen that the structure of the manufacturing equipment of asymmetric tubular filter element base substrate of the invention
Simply, integrate slip casting and centrifuge, can not only prepare coating in uniform thickness, and production effect can be obviously improved
Rate.
The relative position relation of slip casting mechanism and drive component can be following three kinds：
The first, rotating shaft and slurry stream passage are misaligned, that is, need to open on the first sealing and/or the second sealing
If two holes, now, the slip casting mechanism should also include the first plug matched with the slurry stream passage, due to rotating shaft
Slip casting is not involved in, therefore rotating shaft can be solid construction.Thus, prevent that slurry is thrown out of from slurry stream passage during centrifugation.
Second, the rotating shaft includes the hollow tubular portion for the pulp flow through the slurry stream passage,
The slip casting mechanism also includes being located at being turned on supporter inside in the hollow tubular portion inside the supporter
Slurry outlet and the injected hole in the hollow tubular portion outside the supporter.Thus, before rotation, oar body
It is more evenly distributed in the bottom of supporter, is advantageous to obtain the coating of thickness evenly.
The third, the rotating shaft includes the hollow tubular portion for pulp flow through the slurry stream passage, described
Slip casting mechanism also includes the slurry outlet with conducting inside the supporter in the hollow tubular portion inside the supporter
And the injected hole in the hollow tubular portion outside the supporter.Thus, a hole is only opened up on sealing, even if
Rotating shaft and slurry stream passage overlap so that structure is more compact, and sealing effectiveness is more preferable.
Further, the slip casting mechanism also includes the second plug matched with the injected hole.Thus, when preventing centrifugation
Slurry is thrown out of from injected hole.
Further, second plug is threadedly coupled with the injected hole.Because rotating shaft is generally metal material, because
This, second plug is threadedly coupled with the injected hole can make to be connected more firm and sealing.
Further, the material of first sealing and/or the second sealing is elastomeric material.Thus, easily obtain and
Good sealing effect.
Further, in addition to the rotating shaft detent mechanism positioned.Thus, make in the rotation process of supporter
It is more stable.
Further, in addition to casing, the casing are provided with the turn hole matched with the rotating shaft.Thus, preventing point
Powder reclaims dispersant while splashing.
Further, the pipe thickness of the supporter is 1~6mm；The internal diameter of the supporter is 20~100mm；Institute
The thickness for stating coating is 0.01~2mm.Because therefore supporter, in order to prevent supporter from deforming, can be supported by centrifugal action
Body needs have certain thickness and internal diameter.And the aperture of film layer is smaller, therefore, when coating layer thickness is 0.01~2mm, by the painting
The film layer of layer sintering gained can reduce filter pressure on the premise of preferable filter effect is kept.Preferably, the supporter
Pipe thickness be 2~4mm；The internal diameter of the supporter is 30~75mm；The thickness of the coating is 0.05~1mm.
To achieve these goals, according to another aspect of the present invention, additionally provide and prepare asymmetric tubular filter member
The equipment of part, the asymmetric tubular filter element are formed by asymmetric tubular filter element blank sintering, the manufacturing equipment
Equipment, the equipment for drying the asymmetric tubular filter element base substrate including manufacturing the asymmetric tubular filter element base substrate
Equipment with the asymmetric tubular filter element base substrate is sintered, wherein, the manufacture asymmetric tubular filter element base
The equipment of body is the manufacturing equipment of above-mentioned asymmetric tubular filter element base substrate.
The structure of the equipment for preparing asymmetric tubular filter element of the present invention is simple, can not only prepare thickness and hole
The film layer for the defects of footpath is uniform, flawless, pin hole, and production efficiency can be obviously improved.
It can be seen that the manufacture method of asymmetric tubular filter element base substrate of the invention introduces centrifugal principle traditional coating
Preparation process, not only technique is simple, and can obtain the highly uniform coating of thickness distribution.The asymmetric tubulose mistake of the present invention
The structure of the manufacturing equipment of filtering element base substrate is simple, integrates slip casting and centrifuges, and can be obviously improved the preparation speed of coating.Should
With the manufacture method of the asymmetric tubular filter element base substrate and the manufacture method of the asymmetric tubular filter element of manufacturing equipment
The quality of the production efficiency and film layer that prepare asymmetric tubular filter element can be obviously improved with manufacturing equipment.
The present invention is described further with reference to the accompanying drawings and detailed description.The additional aspect of the present invention and excellent
Point will be set forth in part in the description, and partly will become apparent from the description below, or the practice by the present invention
Solve.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for aiding in the understanding of the present invention, content provided in accompanying drawing and its
Explanation relevant in the present invention can be used for explaining the present invention, but not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the sectional view of the manufacturing equipment of the asymmetric tubular filter element base substrate of the embodiment of the present invention 1.
Fig. 2 is the sectional view of the manufacturing equipment of the asymmetric tubular filter element base substrate of the embodiment of the present invention 2.
Fig. 3 is the sectional view of the manufacturing equipment of the asymmetric tubular filter element base substrate of the embodiment of the present invention 3.
Fig. 4 is the sectional view of the manufacturing equipment of the asymmetric tubular filter element base substrate of the embodiment of the present invention 4.
Fig. 5 is the sectional view of the manufacturing equipment of the asymmetric tubular filter element base substrate of the embodiment of the present invention 5.
Relevant mark in above-mentioned accompanying drawing for：
1：Supporter；
21：First sealing；
22：Second sealing；
3：Slurry stream passage；
4：Motor；
5：Rotating shaft；
51：First rotating shaft；
52：Second rotating shaft；
53：Hollow tubular portion；
54：Cylindrical portion；
6：First plug；
7：Slurry outlet；
8：Injected hole；
9：Second plug；
10：Detent mechanism.
Embodiment
Clear, complete explanation is carried out to the present invention below in conjunction with the accompanying drawings.Those of ordinary skill in the art are based on these
The present invention can be realized in the case of explanation.Before with reference to accompanying drawing, the present invention will be described, it is necessary to it is emphasized that：
Technical scheme and technical characteristic in the present invention provided in each several part including the description below, do not rushing
In the case of prominent, these technical schemes and technical characteristic can be mutually combined.
In addition, the embodiments of the invention being related in the description below are generally only the embodiment of a branch of the invention, and
The embodiment being not all of.Therefore, creativeness is not being made based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of work, should all belong to the scope of protection of the invention.
On term in the present invention and unit.Term in description and claims of this specification and relevant part
" comprising ", " having " and their any deformation, it is intended that cover non-exclusive include.
Asymmetric tubular filter element base substrate described in present invention below embodiment includes tubulose and porous
Supporter 1 and the coating positioned at the inwall of supporter 1, the inwall that the coating is attached to the supporter 1 by slurry pass through
Drying forms；Described asymmetric tubular filter element is formed by the asymmetric tubular filter element blank sintering, sintered
Cheng Zhong, the coating are converted into the film layer with filtering function.Term " air flux " refers to every per hour under every kPa of filter pressure
Square metre filter area under air infiltration capacity.
Embodiment 1
The manufacturing equipment of asymmetric tubular filter element base substrate shown in Fig. 1, including sealing, slip casting mechanism and driving
The drive component that the supporter 1 rotates in the horizontal direction；Wherein, the sealing include respectively with the both ends of supporter 1
The first sealing 21 and the second sealing 22 of matching；The slip casting mechanism includes making institute on first sealing 21
State the slurry stream passage 3 of 1 inside and outside conducting of supporter；The drive component includes and first sealing 21 and the
The motor 4 that the rotating shaft 5 and the driving rotating shaft 5 of two sealings 22 connection rotate.
The slip casting mechanism also includes the first plug 6 matched with the slurry stream passage 3.
The material of first sealing 21, the second sealing 22 and the first plug 6 is elastomeric material, the elastic material
Expect for rubber.
Also include the detent mechanism 10 positioned to the rotating shaft 5.
Also include casing, the casing is provided with the turn hole matched with the rotating shaft 5.
Embodiment 2
The manufacturing equipment of the asymmetric tubular filter element base substrate of the present embodiment and the asymmetric tubulose mistake described in embodiment 1
The difference of the manufacturing equipment of filtering element base substrate is：As shown in Fig. 2 it also is provided with the slurry stream on second sealing 22
Passage 3 and first plug 6.
Embodiment 3
The manufacturing equipment of asymmetric tubular filter element base substrate shown in Fig. 3, including sealing, slip casting mechanism and driving
The drive component that the supporter 1 rotates in the horizontal direction；Wherein, the sealing include respectively with the both ends of supporter 1
The first sealing 21 and the second sealing 22 of matching；The slip casting mechanism includes close located at first sealing 21 and second
The slurry stream passage 3 for making the 1 inside and outside conducting of supporter in envelope portion 22；The drive component includes and described the
The motor 4 that the rotating shaft 5 and the driving rotating shaft 5 of one sealing 21 and the connection of the second sealing 22 rotate.
The rotating shaft 5 includes the hollow tubular portion 53 for the pulp flow through the slurry stream passage 3, described
Slip casting mechanism also includes being located at being turned on the inside of supporter 1 in the hollow tubular portion 53 inside the supporter 1
Slurry outlet 7 and the injected hole 8 in the hollow tubular portion 53 outside the supporter 1.
The slip casting mechanism also includes the second plug 9 matched with the injected hole 8；Second plug 9 and the note
Slurry hole 8 is threadedly coupled.
The material of the sealing 22 of first sealing 21 and second is elastomeric material, and the elastomeric material is rubber.
Also include the detent mechanism positioned to the rotating shaft 5.
Also include casing, the casing is provided with the turn hole matched with the rotating shaft 5.
Embodiment 4
The manufacturing equipment of asymmetric tubular filter element base substrate shown in Fig. 4, including sealing, slip casting mechanism and driving
The drive component that the supporter 1 rotates in the horizontal direction；Wherein, the sealing include respectively with the both ends of supporter 1
The first sealing 21 and the second sealing 22 of matching；The slip casting mechanism includes making institute on second sealing 22
State the slurry stream passage 3 of 1 inside and outside conducting of supporter；The drive component includes and first sealing 21 and the
The motor 4 that the rotating shaft 5 and the driving rotating shaft 5 of two sealings 22 connection rotate.
The rotating shaft 5 include the first rotating shaft 51 that is connected with first sealing 21 and with second sealing 22
Second rotating shaft 52 of connection, second rotating shaft 52 include cylindrical portion 54, and the cylindrical portion 54 is matched somebody with somebody with the slurry stream passage 3
Close, the slip casting mechanism also includes the injected hole 8 in the cylindrical portion 54.
The slip casting mechanism also includes the second plug 9 matched with the injected hole 8；Second plug 9 and the note
Slurry hole 8 is threadedly coupled.
The material of the sealing 22 of first sealing 21 and second is elastomeric material, and the elastomeric material is rubber.
Also include the detent mechanism 10 positioned to the rotating shaft 5.
Also include casing, the casing is provided with the turn hole matched with the rotating shaft 5.
Embodiment 5
The manufacturing equipment of the asymmetric tubular filter element base substrate of the present embodiment and the asymmetric tubulose mistake described in embodiment 4
The difference of the manufacturing equipment of filtering element base substrate is：As shown in figure 5, it also is provided with the slurry stream on first sealing 21
Passage 3, accordingly, the first rotating shaft 51 include cylindrical portion 54, and the cylindrical portion 54 coordinates with the slurry stream passage 3,
The slip casting mechanism also includes the injected hole 8 in the cylindrical portion 54.
The manufacturing equipment of the asymmetric tubular filter element of the present invention includes one of embodiment 1-5 asymmetric tubular filter
The manufacturing equipment of element, the equipment for drying the asymmetric tubular filter element base substrate and the sintering asymmetric tubular filter member
The equipment of part base substrate.Wherein, the equipment of the drying asymmetric tubular filter element base substrate and the sintering asymmetric pipe
The equipment of shape filter element base substrate is existing equipment.
In order to clearly illustrate the beneficial effect of the manufacture method of the asymmetric tubular filter element base substrate of the present invention, with
Under illustrated by specific embodiment 6~10, wherein, the embodiment 6~10 is using the asymmetric pipe described in embodiment 4
The manufacturing equipment of shape filter element base substrate.
The method for preparing asymmetric tubular filter element of embodiment 6~10 comprises the following steps：
(1) prepared by supporter 1：
1. using titanium valve and aluminium powder as the second raw material powder, by the titanium that particle diameter is -200~+400 mesh, parts by weight are 66.7 parts
The aluminium powder that powder and particle diameter are -200~+400 mesh, parts by weight are 33.3 parts is added in V-type batch mixer, batch mixing 8h；Described " -200
The implication of~+400 mesh " is：Represent that the second raw material powder can leak through from the mesh of 200 mesh and can not be leaked through from the mesh of 400 mesh,
When screening the second raw material powder of this mesh number, the screen cloth of 400 mesh is placed on below the screen cloth of 200 mesh, stayed on the screen cloth of 400 mesh
Under be -200~+400 the first powders of purpose；
2. being used as granulating agent from stearic acid, stearic acid is added in 70 DEG C of alcohol and dissolved, then by step 1. in it is mixed
The the second raw material powder got togather is added in mixer, and stearic acid solution is slowly uniformly added into during stirring, stirs 5h, then lead to
Cross comminutor to be granulated, screen cloth selects 30 mesh, then dries in 50 DEG C of baking oven；
3. assembly jig, then into mold cavity add be granulated after the second raw material powder, by cold isostatic press by its
The tubular presoma of supporter 1 is pressed into, is stripped；
4. the hollow ball that particle diameter is 30 mesh is put into the cavity of the precursor of supporter 1, then by the forerunner of supporter 1
Body is fitted into sintering boat, and right fed to boiler sintering, sintering temperature is 1250 DEG C, sintering time 6h, and be supported body 1 after cooling,
Thickness, internal diameter and the aperture of gained supporter 1 are shown in Table 1；
(2) slurry is configured：
1. the first raw material powder is added in V-type batch mixer by the particle diameter and type requirements of the first raw material powder in table 1, batch mixing
8h；Wherein, A is the aperture of supporter 1, and B is the particle diameter of titanium valve in the first raw material powder, and C is the particle diameter of aluminium powder in the first raw material powder；
2. ethylene glycol is added in absolute ethyl alcohol, volume ratio=1 of ethylene glycol and absolute ethyl alcohol:9, mixing mixes；
3. the first raw material powder mixed is slowly added in ethylene glycol alcohol blend during stirring, per 1g the
One raw material powder adds 2ml ethylene glycol absolute ethyl alcohol mixed liquors, stirs ultrasonic 10min again after 30min, that is, obtains slurry；
Table 1 is the composition and ratio of the first raw material powder.
(3) prepares coating：
1. the supporter 1 that step (1) is prepared installs according to annexation as shown in Figure 4；
2. opening injected hole 8, toward the slurry that is prepared of inside implantation step (2) of supporter 1, second is then installed
Plug 9；
3. starting motor 4, supporter 1 is set to rotate 2~20min under 100~500r/min rotating speed, it is specific to rotate ginseng
Number is shown in Table 2；
4. spontaneously drying 1h, that is, obtain asymmetric tubular filter element base substrate；
Table 2 is the parameter of technological parameter prepared by coating and coating.
(4) sinter：It is 50 purposes that particle diameter is put into the cavity containing cated supporter 1 that step (3) is prepared
Hollow ball, it is sintered according to the sintering parameter described in table 3, the programming rate of whole sintering process is 3 DEG C/min, and sintering is completed
Asymmetric tubular filter element is obtained, the aperture of the asymmetric tubular filter element and performance parameter are shown in Table 3.
Table 3 is the sintering process parameter of coating and the parameter of film layer.
It can be obtained by embodiment 6~10 to draw a conclusion：
1) when 1~3 times of the particle diameter that the aperture of the supporter 1 is the first raw material powder, it can be ensured that first is former
Feed powder is not thrown out of, and film layer and the adhesion of supporter 1 are stronger；Preferably, the aperture of the supporter 1 is first raw material
1.8~2.5 times of the particle diameter of powder；
2) pipe thickness of the supporter 1 is 1~6mm；When the internal diameter of the supporter 1 is 20~100mm, supporter
1 is unlikely to deform in rotation process, and now, the thickness of the coating is 0.01~2mm, can keep preferable filter effect
Under the premise of reduce filter pressure.Preferably, the pipe thickness of the supporter 1 is 2~4mm；The internal diameter of the supporter 1 is 30
~75mm；The thickness of the coating is 0.05~1mm；
3) when the supporter 1 rotate rotating speed be 100~500r/min, when the time of rotation is 2~20min, both may be used
To keep higher production efficiency, the first raw material powder can again be evenly distributed；Preferably, the rotating speed that the supporter 1 rotates
For 200~300r/min, the time of rotation is 5~15min；
4) when the particle diameter of the first raw material powder is 1~12 μm, the second raw material powder is that particle diameter is -200~+400 mesh
When, easily obtain the asymmetric tubular filter element that aperture is suitable, air flux is high.
The relevant content of the present invention is illustrated above.Those of ordinary skill in the art are in the feelings illustrated based on these
The present invention can be realized under condition.Based on the above of the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained on the premise of work, should all belong to the scope of protection of the invention.
Claims (10)
1. the manufacturing equipment of asymmetric tubular filter element base substrate, the asymmetric tubular filter element base substrate includes tubulose and more
The supporter (1) and the coating positioned at the supporter (1) inwall in hole, the coating are attached to the supporter by slurry
(1) inwall forms through drying, it is characterised in that：The manufacturing equipment includes sealing, slip casting mechanism and the driving branch
The drive component that support body (1) rotates in the horizontal direction；
The sealing includes the first sealing (21) and the second sealing matched respectively with the supporter (1) both ends
(22)；
The slip casting mechanism includes making the supporter on first sealing (21) and/or the second sealing (22)
(1) the slurry stream passage (3) of inside and outside conducting；
The drive component includes the rotating shaft (5) being connected with first sealing (21) and the second sealing (22) and driving
The motor (4) of the axis of rotation.
2. the manufacturing equipment of asymmetric tubular filter element base substrate as claimed in claim 1, it is characterised in that：The slip casting machine
Structure also includes the first plug (6) matched with the slurry stream passage (3).
3. the manufacturing equipment of asymmetric tubular filter element base substrate as claimed in claim 1, it is characterised in that：The rotating shaft
(5) hollow tubular portion (53) for the pulp flow through the slurry stream passage (3) is included, the slip casting mechanism is also
Including going out located in the internal hollow tubular portion (53) of the supporter (1) with what is turned on inside the supporter (1)
Starch hole (7) and located at the injected hole (8) in the outside hollow tubular portion (53) of the supporter (1).
4. the manufacturing equipment of asymmetric tubular filter element base substrate as claimed in claim 1, it is characterised in that：The rotating shaft
(5) first rotating shaft (51) being connected with first sealing (21) and be connected with second sealing (22) the is included
Two rotating shafts (52), the first rotating shaft (51) and/or the second rotating shaft (52) include cylindrical portion (54), the cylindrical portion (54) and institute
Slurry stream passage (3) cooperation is stated, the slip casting mechanism also includes the injected hole (8) in the cylindrical portion (54).
5. the manufacturing equipment of the asymmetric tubular filter element base substrate as described in claim 3 or 4, it is characterised in that：The note
Pulp grinder structure also includes the second plug (9) matched with the injected hole (8).
6. the manufacturing equipment of asymmetric tubular filter element base substrate as claimed in claim 5, it is characterised in that：Described second is stifled
Head (9) is threadedly coupled with the injected hole (8).
7. the manufacturing equipment of asymmetric tubular filter element base substrate as claimed in claim 1, it is characterised in that：Described first is close
The material of envelope portion (21) and/or the second sealing (22) is elastomeric material.
8. the manufacturing equipment of asymmetric tubular filter element base substrate as claimed in claim 1, it is characterised in that：Also include to institute
State the detent mechanism that rotating shaft (5) is positioned；Also include casing, the casing is provided with the turn hole matched with the rotating shaft (5).
9. the manufacturing equipment of asymmetric tubular filter element base substrate as claimed in claim 1, it is characterised in that：The supporter
(1) pipe thickness is 1~6mm；The internal diameter of the supporter (1) is 20~100mm；The thickness of the coating be 0.01~
2mm。
10. the manufacturing equipment of asymmetric tubular filter element, the asymmetric tubular filter element is by asymmetric tubular filter member
Part blank sintering forms, described in equipment of the manufacturing equipment including the manufacture asymmetric tubular filter element base substrate, drying
The equipment of asymmetric tubular filter element base substrate and the equipment for sintering the asymmetric tubular filter element base substrate, its feature exist
In：The equipment of the manufacture asymmetric tubular filter element base substrate is the asymmetric tubulose described in one of claim 1-9
The manufacturing equipment of filter element base substrate.
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| CN107551826B (en) | 2023-11-14 |
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