CN109647196A - Hollow fiber film assembly static casting Processes and apparatus - Google Patents
Hollow fiber film assembly static casting Processes and apparatus Download PDFInfo
- Publication number
- CN109647196A CN109647196A CN201811471715.XA CN201811471715A CN109647196A CN 109647196 A CN109647196 A CN 109647196A CN 201811471715 A CN201811471715 A CN 201811471715A CN 109647196 A CN109647196 A CN 109647196A
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- Prior art keywords
- casting
- hollow fiber
- membrane module
- film assembly
- fiber film
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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
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of hollow fiber film assembly static casting Processes and apparatus.For present invention process the following steps are included: 1) in advance to thixotropic agent is added in epoxy-resin systems, the additive amount of thixotropic agent is the 0.5%-10% of epoxy resin quality；2) membrane module to be cast is fixed on membrane module fixed frame；3) casting is fixed on the outside of membrane module shell casting end with vibrating motor；4) epoxy resin is injected into membrane module casting end cap, while starting vibrating motor；5) vibrating motor is closed after epoxy resin reaches predetermined level height；6) continue flexible glue of the hardness lower than shore 60A after casting solidifies and complete casting work.The present invention increases the effective length and filter area of membrane module, can be obviously improved the product quality of hollow fiber nanofiltration membrane component while having not been changed film wire usage amount.
Description
Technical field
The present invention relates to membrane module preparation technical fields, especially hollow fiber film assembly static casting Processes and apparatus.
Background technique
For hollow-fibre membrane because it is with large specific surface area, membrane module loading density is high, simple process and it is at low cost the advantages that,
It is widely used it in the fields such as environmental protection, food medicine, chemical industry.
To complete separation process using hollow-fibre membrane, a large amount of hollow-fibre membrane film wires are usually packed into membrane module shell
In, film wire is fixed on package shell using epoxy resin, polyurethane or other adhesives, forms the separation of relative closure
Space.But in actual production and application process, since surface tension of adhesive when uncured inherently is larger,
Under the influence of capillarity, adhesive can climb along film wire very high upwards in the curing process, on the one hand reduce membrane module
Effective length reduces the actual use flux of membrane module；Pressure resistance operation is needed additionally, due to membrane module, is also needed in some cases
Higher pressure is wanted to run, this needs and solidify after hardness higher epoxy resin good using cementability, and capillary is climbed phenomenon meeting
Keep film wire root more fragile, in order to guarantee the stable operation of membrane module, this just needs to be poured a large amount of polyurethane or silicon rubber
Elastomeric material covers the climb altitude of underlying epoxy, this not only further reduced the effective area of membrane module, also
The cost of manufacture of membrane module is significantly increased, it is non-to produce the promotion and application for being unfavorable for hollow fiber film assembly.
Summary of the invention
There are brittleness roots caused by climb altitude height when the purpose of the present invention is for existing epoxy resin as adhesive
Portion is too long and membrane area loses excessive problem, provides a kind of hollow fiber film assembly static casting Processes and apparatus.
In order to solve the above technical problems, achieving the object of the present invention, technical solution provided by the invention are as follows: a kind of hollow fibre
Tie up membrane module static casting technique, comprising the following steps:
1) adhesive system of tool pseudoplastic rheological characteristic, institute are formed to thixotropic agent is added in epoxy-resin systems in advance
Stating thixotropic agent is one or more of fumed silica, soluble castor oil, polyamide wax or polyolefin pulp；Thixotropic agent
Additive amount is the 0.5%-10% of epoxy resin quality；
2) membrane module to be cast is fixed on membrane module fixed frame；
3) casting is fixed on the outside of membrane module shell casting end with vibrating motor after installing casting end cap；
4) there will be thixotropic epoxy resin to be injected into membrane module by feed inlet to be poured in end cap, while start vibration
Motor；
5) vibrating motor is closed after epoxy resin reaches predetermined level height；
6) continue flexible glue of the hardness lower than shore 60A after casting solidifies and complete casting work.
The thixotropic agent adding procedure and epoxy resin fill process of epoxy resin carry out simultaneously.
Equipment for completing hollow fiber film assembly static casting technique, including membrane module fixed frame, hollow-fibre membrane
Package shell poured with epoxy resin magazine, vibrating motor and casting end cap, the fixed hollow-fibre membrane group in membrane module fixed frame side
Part shell, hollow fiber film assembly shell is interior to place hollow fiber film assembly, and the installation of hollow fiber film assembly bottom surface is poured end cap,
It is poured magazine connection casting pipeline one end, casting pipeline other end connection is located at the casting end cap of hollow fiber film assembly bottom end,
Vibrating motor is fixed on the outside of membrane module shell casting end.
The vibration frequency of the vibrating motor is 5-100Hz.
The beneficial effects of the present invention are:
The present invention can be shown under the premise of not reducing hollow fiber film thread loading density and weakening adhesive sealing effect
Writing reduces the brittleness height that epoxy resin is formed in film wire, enhances membrane module while the usage amount for saving flexible glue
Service life；While having not been changed film wire usage amount, the effective length and filter area of membrane module are increased, can significantly be mentioned
Rise the product quality of hollow fiber nanofiltration membrane component.
Detailed description of the invention
Fig. 1 is hollow fiber film assembly static casting equipment schematic diagram of the present invention.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, by following embodiment,
And in conjunction with attached drawing, the present invention is further described in detail.It should be noted that specific embodiment herein is only to understand this
Invention, is not limited to the present invention.
Embodiment 1
As shown in Figure 1, a kind of hollow fiber film assembly static casting equipment, including membrane module fixed frame 1, membrane module shell
2, poured with epoxy resin magazine 3, vibrating motor 4, casting end cap 5.Using 6 cun of hollow fiber film assembly shells of standard as this implementation
The casting object of example, specific steps are as follows:
1) one end is enclosed on membrane module fixed frame 1 with the hollow-fibre membrane film wire that conventional sealing end mode blocks and is fixed
Membrane module shell 2 in；
2) casting is fixed on the outside of membrane module shell casting end with vibrating motor after installing casting end cap；
3) to the fumed silica of addition 3% in epoxy-resin systems, the epoxy with pseudoplastic rheological characteristic is formed
Resin adhesive；
4) above-mentioned epoxy resin is poured magazine 3 by epoxy resin adhesive to be injected into membrane module casting end cap, together
Shi Qidong vibrating motor 4 sets vibrating motor frequency as 50Hz；
5) vibrating motor 4 is closed after epoxy resin reaches predetermined level height；
6) continue to complete casting work from membrane module side port cast polyurethane.
Embodiment 2
Using prior art and equipment, using 6 cun of hollow fiber film assembly shells of standard as the casting object of the present embodiment,
Specific steps are as follows:
1) one end is enclosed on membrane module fixed frame with the hollow-fibre membrane film wire that conventional sealing end mode blocks and is fixed
Membrane module shell in；
2) epoxy resin membrane module is injected by poured with epoxy resin magazine to be poured in end cap；
3) continue to complete casting work from membrane module side port cast polyurethane.
After the above-mentioned hollow fiber film assembly being poured is cut away extra sealing material, according to same operating procedure
Complete the casting process of the other end.
The membrane module that both ends are poured carries out casting quality inspection, carries out durability test, test condition after qualified
It is as follows:
Temperature is 25 ± 2 DEG C, and water inlet water source is municipal tap water, and the method for operation is full dose filtering, respectively in inlet flow rate
It is continuous operation 500 hours under the conditions of the conventional flow of inlet water and 8m3/h ultralimit flow of inlet water of 4m3/h, records membrane module
Transmembrane pressure.
It carries out film wire to membrane module later to fracture inspection and the axial climb altitude for cutting epoxy resin on measurement section, number
It is as shown in the table according to statistics:
Under the premise of the present invention can guarantee that hollow-fibre membrane film wire usage amount is constant as can be seen from the above table, film group is promoted
Part effective area reduces the usage amount of polyurethane flexible glue, and reduces transmembrane pressure when membrane module operation and promotion membrane module
The impact resistance service life improves the product quality and the market competitiveness of membrane module on the whole.
Above-described embodiment is to a kind of detailed description of hollow fiber film assembly static casting Processes and apparatus, is explanation
Property without being restrictive, several embodiments can be enumerated according to limited range, therefore of the invention overall not departing from
Change and modification under design, should belong within protection scope of the present invention.
Claims (5)
1. a kind of hollow fiber film assembly static casting technique, characterized in that the pouring technology follows the steps below:
1) adhesive system of tool pseudoplastic rheological characteristic, the touching are formed to thixotropic agent is added in epoxy-resin systems in advance
Change agent is one or more of fumed silica, soluble castor oil, polyamide wax or polyolefin pulp；The addition of thixotropic agent
Amount is the 0.5%-10% of epoxy resin quality；
2) membrane module to be cast is fixed on membrane module fixed frame；
3) casting is fixed on the outside of membrane module shell casting end with vibrating motor after installing casting end cap；
4) there will be thixotropic epoxy resin to be injected into membrane module by feed inlet to be poured in end cap, while start vibration electricity
Machine；
5) vibrating motor is closed after epoxy resin reaches predetermined level height；
6) continue flexible glue of the hardness lower than shore 60A after casting solidifies and complete casting work.
2. a kind of hollow fiber film assembly static casting technique according to claim 1, which is characterized in that epoxy resin
Thixotropic agent adding procedure and epoxy resin fill process carry out simultaneously.
3. a kind of hollow fiber film assembly static casting technique according to claim 1, which is characterized in that film wire root
The flexible glue protected be polyurethane, silicon rubber or other solidify after hardness lower than shore 60 (A) flexible material.
4. the equipment of hollow fiber film assembly static casting technique described in a kind of claim 1, characterized in that solid including membrane module
Determine frame (1), hollow fiber film assembly shell (2) poured with epoxy resin magazine (3), vibrating motor (4) and casting end cap (5), film
Hollow fiber film assembly shell is fixed in component fixed frame side, places hollow-fibre membrane film wire in hollow fiber film assembly shell,
Hollow fiber film assembly enclosure bottom installation casting end cap, poured with epoxy resin magazine connection casting pipeline one end, is poured pipeline
Other end connection is located at the casting end cap of hollow fiber film assembly bottom end, and vibrating motor is fixed on outside membrane module shell casting end
Side.
5. a kind of hollow fiber film assembly static casting equipment according to claim 4, which is characterized in that the vibration electricity
The vibration frequency of machine is 5-100Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471715.XA CN109647196A (en) | 2018-12-04 | 2018-12-04 | Hollow fiber film assembly static casting Processes and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471715.XA CN109647196A (en) | 2018-12-04 | 2018-12-04 | Hollow fiber film assembly static casting Processes and apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN109647196A true CN109647196A (en) | 2019-04-19 |
Family
ID=66112299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811471715.XA Pending CN109647196A (en) | 2018-12-04 | 2018-12-04 | Hollow fiber film assembly static casting Processes and apparatus |
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| CN (1) | CN109647196A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703962A (en) * | 1970-09-16 | 1972-11-28 | Dow Chemical Co | Secured plasticized acetylated cellulose hollow fiber membranes |
| CN1197408A (en) * | 1995-09-21 | 1998-10-28 | 旭化成工业株式会社 | Hollow fiber membrane module |
| CN1736568A (en) * | 2005-06-28 | 2006-02-22 | 谷宗岳 | Capsulation pouring method of hollow fibrous membrane element and pouring arrangement thereof |
| CN102120351A (en) * | 2010-12-16 | 2011-07-13 | 国电龙源南京膜技术有限公司 | Casting method for membrane assembly |
| CN103785295A (en) * | 2014-02-27 | 2014-05-14 | 天邦膜技术国家工程研究中心有限责任公司 | Hollow fiber membrane assembly pouring device and method thereof |
| CN107083229A (en) * | 2017-05-12 | 2017-08-22 | 南京威邦新材料有限公司 | A kind of preparation method of membrane for water treatment bi-component polyurethane pouring sealant |
| CN206631441U (en) * | 2017-04-11 | 2017-11-14 | 江西博鑫精陶环保科技有限公司 | A kind of hermetically sealed hollow ceramic flat membranes filter element |
-
2018
- 2018-12-04 CN CN201811471715.XA patent/CN109647196A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703962A (en) * | 1970-09-16 | 1972-11-28 | Dow Chemical Co | Secured plasticized acetylated cellulose hollow fiber membranes |
| CN1197408A (en) * | 1995-09-21 | 1998-10-28 | 旭化成工业株式会社 | Hollow fiber membrane module |
| CN1736568A (en) * | 2005-06-28 | 2006-02-22 | 谷宗岳 | Capsulation pouring method of hollow fibrous membrane element and pouring arrangement thereof |
| CN102120351A (en) * | 2010-12-16 | 2011-07-13 | 国电龙源南京膜技术有限公司 | Casting method for membrane assembly |
| CN103785295A (en) * | 2014-02-27 | 2014-05-14 | 天邦膜技术国家工程研究中心有限责任公司 | Hollow fiber membrane assembly pouring device and method thereof |
| CN206631441U (en) * | 2017-04-11 | 2017-11-14 | 江西博鑫精陶环保科技有限公司 | A kind of hermetically sealed hollow ceramic flat membranes filter element |
| CN107083229A (en) * | 2017-05-12 | 2017-08-22 | 南京威邦新材料有限公司 | A kind of preparation method of membrane for water treatment bi-component polyurethane pouring sealant |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Application publication date: 20190419 |