CN111330448A - Casting end cover, casting device and casting method of ultrafiltration membrane - Google Patents
Casting end cover, casting device and casting method of ultrafiltration membrane Download PDFInfo
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- CN111330448A CN111330448A CN202010265798.8A CN202010265798A CN111330448A CN 111330448 A CN111330448 A CN 111330448A CN 202010265798 A CN202010265798 A CN 202010265798A CN 111330448 A CN111330448 A CN 111330448A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/021—Manufacturing thereof
- B01D63/022—Encapsulating hollow fibres
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- 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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
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- 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
- B01D65/003—Membrane bonding or sealing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/28—Pore treatments
- B01D2323/286—Closing of pores, e.g. for membrane sealing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/42—Details of membrane preparation apparatus
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a casting end cover, a casting device and a casting method of an ultrafiltration membrane, wherein the casting end cover comprises an end cover part and a central plug, the end cover part is provided with a central through hole, the central plug penetrates through the central through hole and is in sealed detachable connection with the end cover part, a membrane thread port plugging rubber cavity and an encapsulation rubber cavity are arranged in the end cover part, the outer wall of the end cover part is correspondingly provided with a membrane thread port plugging rubber inlet and an encapsulation rubber inlet, and the inner wall of the end cover part is correspondingly provided with a membrane thread port plugging rubber outlet and an encapsulation rubber outlet; the casting device comprises a membrane shell with openings at two ends and two casting end cover assemblies, wherein the end walls at two ends of the membrane shell are detachably and hermetically connected with the side walls of the two casting end covers; the casting method comprises the steps of putting the casting device into a centrifuge, injecting glue and curing. The invention solves the problem of long standing time after the hole is blocked by hard glue and membrane yarns in the prior production process, and improves the product quality and the production efficiency of the component.
Description
Technical Field
The invention relates to the field of membrane separation technology and equipment, in particular to a casting end cover, a casting device and a casting method of an ultrafiltration membrane.
Background
At present, environmental pollution is more and more serious, and the life quality and health of people are seriously influenced, so that environmental protection is increasingly paid attention by the nation and people. The sewage treatment is an important link of environmental protection, and the pressure membrane plays an important role in the sewage treatment process and is widely applied to various industries such as printing, papermaking, chemical engineering, membrane manufacturing for forward osmosis base membranes and the like. To obtain good quality water production, the quality of the osmotic membrane is of central importance.
The casting process of the pressure type membrane module production at present roughly comprises the following steps: the membrane silk blocking glue is used for manually blocking membrane silk holes, the membrane silk blocking glue is scattered after standing for a period of time, and then the membrane silk blocking glue is installed into a casting end cover and epoxy glue casting is carried out.
However, the phenomenon that the membrane thread is not tight in hole blocking is inevitably caused due to the fact that the membrane thread blocking glue is manually coated, and once the hole is not completely blocked, the problem that hard glue enters the hole in the casting process can be caused. After the subassembly cutting, some membrane silk ebonite stifled hole phenomenon will appear in the terminal surface, has just become the waste silk by this part membrane silk in ebonite stifled hole, has influenced the performance of subassembly, and in addition, the membrane silk after artifical the painting can not break up immediately, need the longer time of stewing, and when this just leads to mass production, a lot of products can be overstocked to this process.
Disclosure of Invention
The invention aims to solve the problems and provides a casting end cover, a casting device and a casting method.
According to a first aspect of the invention, a casting end cover of an ultrafiltration membrane is provided, which comprises an end cover part provided with a central through hole and a central plug, wherein the central plug penetrates through the central through hole and is in sealing and detachable connection with the end cover part, a membrane thread port plugging rubber cavity and an encapsulation rubber cavity are arranged in the end cover part, the outer wall of the end cover part is correspondingly provided with a membrane thread port plugging rubber inlet and an encapsulation rubber inlet, and the inner wall of the end cover part is correspondingly provided with a membrane thread port plugging rubber outlet and an encapsulation rubber outlet.
The end cover part comprises an end cover and a pressing plate, wherein the center of the end cover part is provided with a through hole, the end cover and the pressing plate can be detachably connected in a compression mode, a three-layer annular wall is arranged from the center to the periphery of one surface of the pressing plate, the top surface of the three-layer annular wall is hermetically connected with the outer cover surface of the end cover, and a surrounding film thread hole plugging rubber cavity and a surrounding packaging rubber cavity are formed.
The membrane silk mouth plugging glue outlets are multiple, annularly arranged on the cover part of the end cover and positioned between the innermost two layers of annular walls; the outlet of the packaging adhesive is multiple, and the packaging adhesive is annularly arranged on the cover part and positioned between the two outermost layers of annular walls.
Wherein, the encapsulation is glued the export and is included that a plurality of inboards advance jiao kou and a plurality of outsides advance jiao kou, and a plurality of outsides advance jiao kou and encircle a plurality of inboards and advance jiao kou setting, and a plurality of outsides are advanced jiao kou and a plurality of inboards and are equipped with annular spacing between advancing jiao kou.
The casting end cover further comprises a plurality of inner side rubber inlet pipes, the inner side rubber inlet pipes and the pressing plate are respectively located on two sides of the end cover, the inner side rubber inlet pipes are fixedly arranged at the inner side rubber inlet openings in a one-to-one correspondence mode, and the inner side rubber inlet pipes and the inner side rubber inlet openings are sealed through compression joint.
The casting end cover further comprises a first injection joint and a second injection joint, the first injection joint is connected with the membrane thread sealing glue inlet in a sealing mode, and the second injection joint is connected with the packaging glue inlet in a sealing mode.
The locking bolt is arranged at one end of the central plug, the step structure is arranged on the periphery of the middle of the central plug, and the central plug and the locking bolt clamp the end cover part from two sides through the step structure to realize fixation with the end cover part.
According to a second aspect of the invention, the ultrafiltration membrane casting device comprises a membrane shell with openings at two ends, two semi-annular hoops and two casting end covers, wherein the two casting end covers are respectively positioned at two ends of a formwork, and each casting end cover is respectively connected with the section of the membrane shell in a sealing manner through the pair of semi-annular hoops.
According to a third aspect of the present invention, there is provided a casting method of an ultrafiltration membrane module using the above casting apparatus, comprising the steps of: installing an end distributor and membrane filaments in the casting device; placing the installed casting device in a centrifugal machine for fixing; weighing membrane yarn mouth plugging glue, and respectively injecting the membrane yarn mouth plugging glue into membrane yarn mouth plugging glue cavities of the two casting end covers; opening the centrifugal machine to enable the membrane silk mouth hole plugging glue at the two ends to be respectively concentrated at the bottoms of the casting end covers at the two ends until the hole plugging glue respectively enters the ports at the two ends of the membrane silk and is solidified; after the membrane thread hole plugging glue is solidified, weighing the packaging glue, respectively injecting the packaging glue into the packaging glue cavities of the two end casting end covers, and starting the centrifuge again to enable the two end packaging glue to be respectively concentrated at the two end ports of the membrane shell in the two end casting end covers and solidified; and (4) unloading the casting device from the centrifuge, and finishing casting.
In the step of injecting the membrane silk mouth plugging glue, the depth of the membrane silk mouth plugging glue entering the membrane silk mouth and curing is 0.5-1 cm; and in the step of injecting the packaging adhesive, the depth of the packaging adhesive entering the opening part of the membrane shell and curing is 4-5 cm.
The casting method solves the problem that the standing time is long after the hard glue blocks the hole and the membrane silk blocks the hole, which is easy to occur in the existing production process, avoids the existence of the casting defect of the component, and improves the product quality and the production efficiency of the component.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 shows a schematic view of a cast end cap according to an embodiment of the invention;
FIG. 2 shows a schematic view of an end cap according to an embodiment of the invention;
FIG. 3 shows a schematic view of a platen according to an embodiment of the present invention;
fig. 4 shows a schematic view of the connection of a casting device according to an embodiment of the invention with a membrane filament distributor and membrane filaments.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below. While exemplary embodiments of the present disclosure have been shown in the specification, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, the casting end cover of the ultrafiltration membrane comprises an end cover part 10 provided with a central through hole and a central plug 20, wherein the central plug 20 penetrates through the central through hole and is detachably connected with the end cover part 10 in a sealing manner, a membrane thread hole plugging rubber cavity and a packaging rubber cavity are arranged in the end cover part 10, a membrane thread hole plugging rubber inlet and a packaging rubber inlet are correspondingly arranged on the outer wall of the end cover part, and a membrane thread hole plugging rubber outlet and a packaging rubber outlet are correspondingly arranged on the inner wall of the end cover part.
The central plug 20 is inserted into the center of the cover plate of the end cover 10, fixedly connected with the casting end cover 10 through a locking nut located at the tail part and a stepped structure, and hermetically plugs the central through hole of the casting end cover 10 to prevent glue from entering the central through hole, wherein a plug sealing groove is arranged on a binding surface of the stepped structure and the bottom of the casting end cover 10, a sealing ring is arranged in the plug sealing groove to prevent the glue from overflowing from a screw rod, and the material of the central plug is not limited.
The end cap portion 10 includes an end cap 110 and a pressing plate 120, both of which have through holes at the center, and the end cap 110 and the pressing plate 120 can be detached and pressed, as shown in fig. 2, wherein a three-layer annular wall 1210 is disposed from the center to the periphery of one surface of the pressing plate 120, and the top surfaces of the three-layer annular wall 1210 are hermetically connected with the outer cover surface of the end cap 110, so as to form a surrounding membrane thread hole plugging rubber cavity and a packaging rubber cavity.
The top wall of the three-layer annular wall 1210 is provided with a sealing groove, and a sealing ring is arranged in the sealing groove. The pressing plate 120 is pressed with the end cover 110 through a pressing screw, and a closed packaging glue cavity and a film wire hole plugging glue cavity are formed between the pressing plate and the bottom surface of the end cover under the action of the three sealing rings, so that glue liquid is prevented from leaking.
As shown in fig. 3, a plurality of membrane thread plugging glue outlets are annularly arranged on the cover part of the end cover 110 and located between the two innermost layers of the annular walls 1210; the plurality of packaging adhesive outlets are annularly arranged on the cover part and positioned between the two outermost layers of annular walls 1210. When the membrane thread opening is plugged, the glue solution flows out from the membrane thread opening plugging glue cavity through the membrane thread opening plugging glue outlet, is always positioned at the bottom in the cover of the end cover 110 under the action of centrifugal force of the centrifugal machine, and then flows into the membrane thread opening nearby to be cured to form plugging.
The outlet of the encapsulation glue comprises a plurality of inner glue inlets 1110 and a plurality of outer glue inlets 1120, the plurality of outer glue inlets 1120 are arranged around the plurality of inner glue inlets 1110, and annular partition walls 100 are arranged between the plurality of outer glue inlets 1120 and the plurality of inner glue inlets 1110. The casting end cover further comprises a plurality of inner side rubber inlet pipes 130, the inner side rubber inlet pipes 130 and the pressing plate 120 are respectively located on two sides of the end cover 110, the inner side rubber inlet pipes 130 are fixedly arranged at the inner side rubber inlet openings 1110 in a one-to-one correspondence mode, and the inner side rubber inlet pipes 130 and the inner side rubber inlet openings 1110 are sealed through compression joint.
The inner rubber inlet pipe 130 is fixed at an inner rubber inlet 1110 on the inner bottom surface of the end cover through conical surface tight fit and is used for enabling the packaging rubber to enter the end cover and the membrane shell, so that the end cover generates about 1.5cm of rubber layer, the membrane shell generates about 4cm of rubber layer, and membrane wire packaging is realized, and the material is not limited. The outer side glue inlet is used for realizing that the inner side glue inlet pipe and the inner wall of the membrane shell respectively feed glue, the fast glue inlet of the packaging glue solution is realized, and the number of the glue inlets is not limited.
As shown in fig. 1, the casting end cap assembly 10 further includes a first injection joint and a second injection joint, the first injection joint is connected to the membrane thread sealing glue inlet in a sealing manner and is used for injecting the corresponding glue solution into the outer membrane thread sealing glue cavity, and the second injection joint is connected to the sealing glue inlet in a sealing manner and is used for injecting the corresponding glue solution into the sealing glue cavity.
As shown in fig. 4, the casting device for the ultrafiltration membrane comprises a membrane shell 1 with openings at two ends, two casting end cover assemblies and two pairs of annular hoops, wherein the side walls of the two casting end covers are respectively detachably and hermetically connected with the end walls at two ends of the membrane shell 1. The sealing connection mode can be that each casting end cover and the membrane shell 1 are connected in a section sealing mode through a pair of semi-annular anchor ears 2. The section of the casting end cover contacted and attached with the membrane shell can be provided with a sealing groove, and a sealing ring is arranged in the sealing groove and used for sealing connection.
The invention also comprises a casting method of the ultrafiltration membrane component by using the casting device, which comprises the following specific steps:
the tip distributor 40 and the membrane filaments 30 are installed in the casting apparatus. After the installation is finished, covering a casting end cover, and placing the casting device in a centrifuge for fixing; weighing membrane yarn mouth plugging glue, respectively injecting the membrane yarn mouth plugging glue into membrane yarn mouth plugging glue cavities of the casting end covers at two ends, and starting a centrifugal machine to enable the membrane yarn mouth plugging glue at two ends to be respectively concentrated at the bottoms of the casting end covers at two ends until the membrane yarn mouth plugging glue respectively enters the ports at two ends of the membrane yarn and is solidified; after the membrane thread hole plugging glue at the two ends is solidified, weighing the packaging glue, respectively injecting the packaging glue into the packaging glue cavities of the casting end covers at the two ends, starting the centrifuge again to enable the packaging glue at the two ends to be respectively concentrated in the casting end covers at the two ends and the port parts at the two ends of the membrane shell, and solidifying; and (4) unloading the casting device from the centrifuge, and finishing casting.
The membrane filaments 30 and the end distributors 40 are installed in such a manner that the two end distributors 40 are respectively installed at two ends of the interior of the membrane shell 1, the membrane filaments penetrate through the positioning holes in the two end distributors 40, and the membrane filaments are cut to enable the two ends of the membrane filaments to be respectively close to the inner bottom surfaces of the casting end covers at the two ends.
In the step of injecting the membrane silk mouth plugging glue, the depth of the membrane silk mouth plugging glue entering the membrane silk mouth and curing is 0.5-1 cm; and in the step of injecting the packaging adhesive, the depth of the packaging adhesive entering the opening part of the membrane shell and curing is 4-5 cm. The parameter setting can ensure the plugging effect of the membrane thread part and improve the casting success rate of the filtering membrane component.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a casting end cover of milipore filter, its characterized in that, is including end cap portion (10) and central end cap (20) that are equipped with central through-hole, central end cap (20) run through central through-hole, and with end cap portion (10) are sealed can dismantle the connection, be equipped with membrane silk mouth shutoff in end cap portion (10) and glue the chamber with the encapsulation, and its outer wall correspondence is equipped with membrane silk mouth shutoff and glues import and encapsulation and glue the import, and its inner wall correspondence is equipped with membrane silk mouth shutoff and glues export and encapsulation and glue the export.
2. The cast end closure of claim 1,
the end cover part (10) comprises an end cover (110) and a pressing plate (120) which are provided with through holes at the centers, the end cover (110) and the pressing plate (120) can be detachably connected in a pressing mode, wherein a three-layer annular wall (1210) is arranged from the center to the periphery of one surface of the pressing plate (120), the top surface of the three-layer annular wall (1210) is connected with the outer cover surface of the end cover (110) in a sealing mode, a surrounding film wire opening sealing glue cavity and a packaging glue cavity are formed.
3. The cast end closure of claim 2,
a plurality of membrane silk mouth plugging glue outlets are annularly arranged on the cover part of the end cover (110) and positioned between the innermost two layers of the annular walls (1210); the packaging glue outlets are multiple and annularly arranged on the cover part and located between the outermost two layers of the annular walls (1210).
4. The cast end cap of claim 3,
the encapsulation is glued the export and is included a plurality of insides and advance jiao kou (1110) and a plurality of outsides and advance jiao kou (1120), a plurality of outsides advance jiao kou (1120) encircle a plurality of insides advance jiao kou (1110) and set up, a plurality of outsides advance jiao kou (1120) with a plurality of insides advance and be equipped with annular space wall (100) between jiao kou (1110).
5. The cast end cap of claim 4,
the casting end cover further comprises a plurality of inner side rubber inlet pipes (130), the inner side rubber inlet pipes (130) and the pressing plate (120) are respectively located on two sides of the end cover (110), the inner side rubber inlet pipes (130) are fixedly arranged at the inner side rubber inlet openings (1110) in a one-to-one correspondence mode, and the inner side rubber inlet pipes (130) and the inner side rubber inlet openings (1110) are sealed through compression joint.
6. The cast end closure of claim 1,
the casting end cover further comprises a first injection joint and a second injection joint, the first injection joint is connected with the membrane thread sealing glue inlet in a sealing mode, and the second injection joint is connected with the packaging glue inlet in a sealing mode.
7. The cast end closure of claim 1,
one end of the central plug (20) is provided with a locking bolt, the periphery of the middle of the central plug (20) is provided with a step structure, and the central plug and the locking bolt clamp the end cover part (10) from two sides through the step structure to realize the fixation of the end cover part (10).
8. The casting device of the ultrafiltration membrane is characterized by comprising a membrane shell (1) with two open ends, two semi-annular hoops (2) and two casting end covers according to any one of claims 1 to 7, wherein the two casting end covers are respectively positioned at two ends of the formwork (1), and each casting end cover is respectively connected with the section of the membrane shell (1) in a sealing manner through a pair of semi-annular hoops (2).
9. A method of casting an ultrafiltration membrane module using the casting apparatus of claim 8, comprising the steps of:
installing an end distributor (40) and membrane filaments (30) in the casting device;
placing the installed casting device in a centrifugal machine for fixing;
weighing membrane yarn mouth plugging glue, and respectively injecting the membrane yarn mouth plugging glue into membrane yarn mouth plugging glue cavities of the two casting end covers;
opening a centrifugal machine to enable the membrane silk mouth hole plugging glue at two ends to be respectively concentrated at the bottoms of the casting end covers at the two ends until the membrane silk mouth hole plugging glue enters the ports at the two ends of the membrane silk respectively and is solidified;
after the membrane thread hole plugging glue is solidified, weighing the packaging glue, respectively injecting the packaging glue into the packaging glue cavities of the two end casting end covers, and starting the centrifuge again to enable the packaging glue at the two ends to be respectively concentrated at the two end ports of the membrane shell in the two end casting end covers and solidified;
and (4) unloading the casting device from the centrifuge, and finishing casting.
10. The casting method as claimed in claim 9,
in the step of injecting the membrane silk mouth plugging glue, the depth of the membrane silk mouth plugging glue entering the membrane silk mouth and curing is 0.5-1 cm;
and in the step of injecting the packaging adhesive, the depth of the packaging adhesive entering the opening part of the membrane shell and curing is 4-5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010265798.8A CN111330448A (en) | 2020-04-03 | 2020-04-03 | Casting end cover, casting device and casting method of ultrafiltration membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010265798.8A CN111330448A (en) | 2020-04-03 | 2020-04-03 | Casting end cover, casting device and casting method of ultrafiltration membrane |
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| Publication Number | Publication Date |
|---|---|
| CN111330448A true CN111330448A (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010265798.8A Pending CN111330448A (en) | 2020-04-03 | 2020-04-03 | Casting end cover, casting device and casting method of ultrafiltration membrane |
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| CN (1) | CN111330448A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183376A (en) * | 2021-03-30 | 2021-07-30 | 利得膜(北京)新材料技术有限公司 | Filter membrane casting end cover, filter membrane casting device and casting method |
| CN113561385A (en) * | 2021-07-28 | 2021-10-29 | 河北金士顿科技有限责任公司 | Humidifier packaging secondary pouring process and equipment |
-
2020
- 2020-04-03 CN CN202010265798.8A patent/CN111330448A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183376A (en) * | 2021-03-30 | 2021-07-30 | 利得膜(北京)新材料技术有限公司 | Filter membrane casting end cover, filter membrane casting device and casting method |
| CN113561385A (en) * | 2021-07-28 | 2021-10-29 | 河北金士顿科技有限责任公司 | Humidifier packaging secondary pouring process and equipment |
| CN113561385B (en) * | 2021-07-28 | 2024-02-13 | 河北金士顿科技有限责任公司 | Humidifier packaging secondary pouring process and equipment |
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Effective date of registration: 20201211 Address after: 101500 room 306, 4 building, 2 Canbo Road, Miyun District, Beijing. Applicant after: MEMSINO MEMBRANE TECHNOLOGY (BEIJING) Co.,Ltd. Applicant after: POTEN ENVIRONMENT GROUP Co.,Ltd. Address before: 101500 room 306, 4 building, 2 Canbo Road, Miyun District, Beijing. Applicant before: MEMSINO MEMBRANE TECHNOLOGY (BEIJING) Co.,Ltd. Applicant before: ZHONGHUAN FILM MATERIAL TECHNOLOGY (DAYE) Co.,Ltd. Applicant before: POTEN ENVIRONMENT GROUP Co.,Ltd. |
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