CN217139563U - Concentration and separation system adopting membrane technology - Google Patents
Concentration and separation system adopting membrane technology Download PDFInfo
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- CN217139563U CN217139563U CN202220595809.3U CN202220595809U CN217139563U CN 217139563 U CN217139563 U CN 217139563U CN 202220595809 U CN202220595809 U CN 202220595809U CN 217139563 U CN217139563 U CN 217139563U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The utility model discloses an adopt membrane technology's concentrated piece-rate system, including former liquid tank, charge pump, precision filter, ultrafiltration membrane group ware, booster pump, safety filter ware, high-pressure pump, receive and strain membrane group ware, clear liquid jar, concentrated fluid reservoir to and back flush system and concentrate cyclic concentration system. The concentration and separation system adopts the separation technology of physical screening and cascade filtration, materials sequentially pass through the precision filter, the ultrafiltration membrane group device and the security filter through a connecting pipeline and a valve, are filtered and purified, then enter the nanofiltration membrane group device for refining and separation, and can be subjected to multiple-cycle concentration and purification through the concentrated solution cycle concentration system as required. The utility model discloses flexible operation, simple, the operation is stable, is applicable to separation and purification of water treatment and inorganic matter, organic matter, has wide application prospect in water treatment, biology, medicine, chemical industry field.
Description
Technical Field
The utility model belongs to the technical field of the membrane separation, concretely relates to adopt membrane technology's concentrated piece-rate system.
Background
The nanofiltration membrane is a pressure-driven membrane interposed between the ultrafiltration membrane and the reverse osmosis membrane. Nanofiltration membranes have membrane pore sizes on the nanometer scale and are most often charged, so that they can retain divalent or multivalent ions and higher molecular weight organics while allowing some monovalent ions to pass through. The operating pressure and energy consumption of the nanofiltration membrane are between those of ultrafiltration and reverse osmosis, and the nanofiltration membrane has the advantages of low operating pressure, low energy consumption, high flux, relatively low investment and maintenance cost and the like. Due to the unique performance, the nanofiltration membrane is widely applied to the industries of biology, medicine, food, chemical industry, water treatment and the like.
The membrane aperture of the nanofiltration membrane is about 1nm, substances with the molecular weight of about 100-2000 daltons can be screened out by the nanofiltration membrane through aperture screening and charge action, partial substances such as polypeptides, micromolecular proteins and organic intermediates can be separated and purified in the fields of biology, medicine and chemical industry, and partial ions can be selectively intercepted in water treatment. At present, there are many patent technologies about nanofiltration membranes for water treatment (CN 208964663U, CN211004983U, CN 211847266U) and separation and purification of organic substances (CN 211025424U, CN104805008A, CN 102399033A), but these process equipments have the disadvantages of single function, inconvenient operation or unstable operation.
The utility model discloses to above problem provide a flexible operation, simple, the operation is stable, adopt the concentrated piece-rate system of membrane technique, this kind of concentrated piece-rate system is applicable to water treatment to and separation, purification of organic matters such as micromolecular protein, polypeptide have wide application prospect in water treatment, biology, medicine, chemical industry field.
Disclosure of Invention
The utility model provides a flexible operation, simple, the operation is stable, adopt membrane technology's concentration piece-rate system, be applicable to separation, purification of organic matters such as water treatment, small molecule protein, polypeptide and medical intermediate.
The utility model discloses the technical scheme who takes does: the utility model provides an adopt concentrated piece-rate system of membrane technique, includes former fluid reservoir, charge pump, precision filter, ultrafiltration membrane group ware, booster pump, cartridge filter, high-pressure pump, nanofiltration membrane group ware, clear liquid jar, concentrated fluid jar, concentrate circulation concentration system and back flush system, its characterized in that: the concentrated solution circulating concentration system is formed by connecting a concentrated solution reflux pump, a concentrated solution tank with the high-pressure pump and the nanofiltration membrane group device through pipelines, and the back flushing system is formed by connecting a cleaning pump, a clear solution tank with the precision filter, the ultrafiltration membrane group device and the security filter through pipelines.
Furthermore, the filter material of the precision filter is one of polypropylene, polytetrafluoroethylene, cellulose acetate, ceramic, activated carbon, stainless steel and titanium alloy, and the filter precision is 50-100 microns.
Furthermore, the ultrafiltration membrane module device is composed of a plurality of ultrafiltration membrane modules connected in parallel, the ultrafiltration membrane modules are hollow fiber ultrafiltration membranes, the ultrafiltration membrane modules are made of one of polysulfone, polyethersulfone, polyvinylidene fluoride, cellulose acetate, polytetrafluoroethylene, sulfonated polyethersulfone, polyethylene, polypropylene, polyamide and polyacrylonitrile, the operating pressure of the ultrafiltration membrane module device is 0.1-0.5 MPa, and the filtration precision is 1-100 micrometers.
Furthermore, the cartridge filter element material is a polypropylene melt-blown material, and the filtering precision is 0.5-10 microns.
Furthermore, the nanofiltration membrane group device is composed of a plurality of nanofiltration membrane components connected in parallel, the nanofiltration membrane components are roll membranes or hollow fiber membranes, the nanofiltration membrane materials are cellulose acetate or aromatic polyamide, the operating pressure of the nanofiltration membrane group device is 0.2-1.0 MPa, and the cut-off molecular weight is 100-2000 daltons.
Furthermore, the circulation frequency of the concentrated solution in the concentrated solution circulation concentration system is 0-5 times.
Furthermore, the backwashing period of the precision filter, the ultrafiltration membrane group device and the cartridge filter is 0.5-10 hours, and the time of each backwashing is 0.5-5 minutes.
Compared with the prior art, the utility model discloses there is following advantage: (1) physical screening and gradient purification separation technologies are adopted, chemical agents do not need to be added, materials are separated step by step, the process reliability is high, and the operation is stable. (2) The process compatibility is good, and the method is suitable for various application scenes of water treatment, chemical industry, biology and medicine.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is a raw liquid tank, 2 is a feeding pump, 3 is a precision filter, 4 is an ultrafiltration membrane group device, 5 is a booster pump, 6 is a security filter, 7 is a high-pressure pump, 8 is a nanofiltration membrane group device, 9 is a concentrated liquid tank, 10 is a concentrated liquid reflux pump, 11 is a clear liquid tank, and 12 is a cleaning pump.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
A concentration and separation system using membrane technology comprising: the device comprises a raw liquid tank 1, a feed pump 2, a precision filter 3, an ultrafiltration membrane group device 4, a booster pump 5, a cartridge filter 6, a high-pressure pump 7, a nanofiltration membrane group device 8, a concentrated liquid tank 9, a concentrated liquid reflux pump 10, a clear liquid tank 11 and a cleaning pump 12, wherein the devices are connected through pipelines, and the inlet and the outlet of the devices are provided with valves.
Further, the raw liquid tank 1, the concentrated liquid tank 9 and the clear liquid tank 11 are made of one of stainless steel, polypropylene and high-density polyethylene, and are square and cylindrical.
Further, the shell of the precision filter 3 is cylindrical stainless steel with a sealing head, the filtering material is one of polypropylene, polytetrafluoroethylene, cellulose acetate, ceramic, activated carbon, stainless steel and titanium alloy, the filtering precision is 50-100 microns, and the precision filter 3 is mainly used for intercepting fine particles in a solution.
Furthermore, the ultrafiltration membrane module 4 is composed of a plurality of ultrafiltration membrane modules connected in parallel, the shell of each ultrafiltration membrane module is made of cylindrical engineering plastic with a sealing head, the ultrafiltration membrane module is made of one of polysulfone, polyethersulfone, polyvinylidene fluoride, cellulose acetate, polytetrafluoroethylene, sulfonated polyethersulfone, polyethylene, polypropylene, polyamide and polyacrylonitrile, the operating pressure of the ultrafiltration membrane module 4 is 0.1-0.5 MPa, the filtering precision is 1-100 micrometers, and the ultrafiltration membrane module 4 is mainly used for removing pollutants such as colloids, macromolecular organic matters, bacteria and viruses in water.
Furthermore, the shell of the cartridge filter 6 is cylindrical stainless steel with a seal head, the filter element is made of polypropylene melt-blown material, the filtering precision is 0.5-10 microns, and the cartridge filter 6 is mainly used for further intercepting fine particles in solution.
Furthermore, the nanofiltration membrane group device 8 is composed of a plurality of nanofiltration membrane components connected in parallel, the nanofiltration membrane component is one of a roll membrane or a hollow fiber membrane, the nanofiltration membrane material is one of cellulose acetate or aromatic polyamide, the operating pressure of the nanofiltration membrane group device 8 is 0.2-1.0 MPa, the cut-off molecular weight is 100-2000 daltons, and the nanofiltration membrane group device 8 is mainly used for separating small molecular organic matters, calcium and magnesium ions, heavy metals, most soluble salts and other substances in a solution.
In the separation process, the stock solution enters a precision filter 3 from a stock solution tank 1 through a feed pump 2, enters an ultrafiltration membrane group device 4 after part of fine particulate matters are removed, the substances such as colloid, macromolecular organic matters and bacteria are removed, then enters a security filter 6 through a booster pump 5, the fine particulate matters in the solution are further removed, the filtrate enters a nanofiltration membrane group device 8 through a high-pressure pump 7, the concentrated solution filtered out by a nanofiltration membrane enters a concentrated solution tank 9, and the clear solution filtered out by the nanofiltration membrane enters a clear solution tank 11. And (3) refluxing the concentrated solution through a concentrated solution reflux pump 10, re-entering a nanofiltration membrane group device 8 through a high-pressure pump 7 for concentration and separation, wherein the circulation frequency is determined according to the material concentration requirement and is 0-5.
The precision filter 3, the ultrafiltration membrane group device 4 and the security filter 6 need to be backwashed regularly, the backwash liquid adopts clear liquid in a clear liquid tank 11 and is backwashed through a cleaning pump 12, the backwashing period is 0.5-10 hours, the backwashing time of each time is 0.5-5 minutes, and the backwash liquid enters the raw liquid tank 1 for continuous separation and purification or discharge after coming out of the precision filter 3, the ultrafiltration membrane group device 4 and the security filter 6.
Claims (7)
1. The utility model provides an adopt concentrated piece-rate system of membrane technique, includes former fluid reservoir, charge pump, precision filter, ultrafiltration membrane group ware, booster pump, cartridge filter, high-pressure pump, nanofiltration membrane group ware, clear liquid jar, concentrated fluid jar, concentrate circulation concentration system and back flush system, its characterized in that: the concentrated solution circulating concentration system is formed by connecting a concentrated solution reflux pump, a concentrated solution tank with the high-pressure pump and the nanofiltration membrane group device through pipelines, and the backwashing system is formed by connecting a cleaning pump, a clear solution tank with the precision filter, the ultrafiltration membrane group device and the security filter through pipelines.
2. A concentration and separation system using membrane technology according to claim 1, wherein: the filter material of the precision filter is one of polypropylene, polytetrafluoroethylene, cellulose acetate, ceramic, activated carbon, stainless steel and titanium alloy, and the filter precision is 50-100 micrometers.
3. A concentration and separation system using membrane technology according to claim 1, wherein: the ultrafiltration membrane group device is composed of a plurality of ultrafiltration membrane components connected in parallel, the ultrafiltration membrane components are hollow fiber ultrafiltration membranes, the ultrafiltration membrane materials are polysulfone, polyethersulfone, polyvinylidene fluoride, cellulose acetate, polytetrafluoroethylene, sulfonated polyethersulfone, polyethylene, polypropylene, polyamide and polyacrylonitrile, the operating pressure of the ultrafiltration membrane group device is 0.1-0.5 MPa, and the filtration precision is 1-100 micrometers.
4. A concentration and separation system using membrane technology according to claim 1, wherein: the cartridge filter core material is a polypropylene melt-blown material, and the filtering precision is 0.5-10 microns.
5. A concentration and separation system using membrane technology according to claim 1, wherein: the nanofiltration membrane group device is composed of a plurality of nanofiltration membrane components connected in parallel, the nanofiltration membrane components are roll membranes or hollow fiber membranes, the nanofiltration membrane materials are cellulose acetate or aromatic polyamide, the operating pressure of the nanofiltration membrane group device is 0.2-1.0 MPa, and the molecular weight cutoff is 100-2000 daltons.
6. A concentration and separation system using membrane technology according to claim 1, wherein: and the circulation times of the concentrated solution in the concentrated solution circulating concentration system are 0-5 times.
7. A concentration and separation system using membrane technology according to claim 1, wherein: the backwashing period of the precision filter, the ultrafiltration membrane group device and the security filter is 0.5-10 hours, and the backwashing time of each time is 0.5-5 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220595809.3U CN217139563U (en) | 2022-03-18 | 2022-03-18 | Concentration and separation system adopting membrane technology |
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| CN202220595809.3U CN217139563U (en) | 2022-03-18 | 2022-03-18 | Concentration and separation system adopting membrane technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618229A (en) * | 2022-03-18 | 2022-06-14 | 内蒙古科泰隆达环保科技有限公司 | Nanofiltration membrane separation process and equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618229A (en) * | 2022-03-18 | 2022-06-14 | 内蒙古科泰隆达环保科技有限公司 | Nanofiltration membrane separation process and equipment |
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