CN201144172Y - Device for removing sulfate radical from brine by nanofiltration membrane - Google Patents
Device for removing sulfate radical from brine by nanofiltration membrane Download PDFInfo
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- CN201144172Y CN201144172Y CNU2007201595113U CN200720159511U CN201144172Y CN 201144172 Y CN201144172 Y CN 201144172Y CN U2007201595113 U CNU2007201595113 U CN U2007201595113U CN 200720159511 U CN200720159511 U CN 200720159511U CN 201144172 Y CN201144172 Y CN 201144172Y
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- nanofiltration membrane
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- concentrated solution
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Abstract
The utility model discloses a device for removing the sulfate radicals in brine by a nanofiltration membrane and belongs to a device for removing the sulfate radicals in brine in the technique process of manufacturing sodium hudroxide by an ion membrane in the chlor-alkali industry; the structure of the device includes a high pressure pump, a concentrated liquor reflowing pipeline, a concentrated liquor drain pipeline and a product medusa tube; the pipeline connected between the medusa tube and a third-section nanofiltration membrane component is connected with a first-section nanofiltration membrane component, a pressure increasing pump between the first section and a second-section, a second-section nanofiltration membrane component and a pressure increasing pump between the second section and the third-section in turn; one side of the third-section nanofiltration membrane component is communicated with the concentrated liquor drain pipeline; the concentrated liquor drain pipeline is communicated with the high pressure pump by the concentrated liquor reflowing pipeline; the first-section nanofiltration membrane component, the second-section nanofiltration membrane component and the third-section nanofiltration membrane component are respectively communicated with the product medusa tube; compared with the prior art, the device has the advantages of reasonable design and being convenient to be used; being capable of effectively reducing the energy consumption of the membrane device, reducing the running cost and prolonging the service life of the membrane components.
Description
Technical field
The utility model relates to the device that removes the sulfate radical in the salt solution in a kind of technological process of chlor-alkali industry ionic membrane system caustic soda, and specifically nanofiltration membrane removes the device of sulfate anion in brine system.
Background technology
In the technological process of chlor-alkali industry ionic membrane system caustic soda, the sulfate radical that exists in the raw material salt solution and other metal ion reacting generating salts are deposited in the film, and bath voltage is raise, and current efficiency descends.When the sulfate radical mass concentration surpassed the standard that allows, current efficiency can obviously descend.So must remove sulfate radical during a refined brine.The method of sulfate radical has cold method, barium chloride method, ion exchange method and embrane method.What generally adopt at present is barium chloride method and Nanofiltering membrane.Wherein the bariumchloride ratio juris is to produce the BaS04 precipitation, thereby removes the sulfate radical in the salt solution, but this method exists following problem 1, bariumchloride poisonous; 2, need to handle solid waste; 3: the running cost height.
Recent years, barium chloride method is substituted by Nanofiltering membrane gradually, the nanofiltration membrane ratio juris is by synthetic negative charge layer on common nanofiltration membrane, make the interception of dianion tunicle surface, major part can't see through rete, and univalent anion and positively charged ion are affected hardly, thereby realize removing of sulfate radical.This method is simple to operate, and is easy to maintenance, and running cost is low, and treatment effect is good.
Generally, the decoration form of nanofiltration membrane device is the multistage arranged in series, and a high-pressure pump is set, the mode that adopts concentrated solution to reflux.The shortcoming of this mode is: along with the carrying out of concentration process, and the membrane module of back, its supplied materials brinish concentration is high more, and the osmotic pressure that is produced is also just high more.And practical situation are since first membrane module, and whenever by a membrane module, the inlet pressure of its assembly will reduce, and inlet pressure is a process that progressively reduces.Film separating system is that pressured difference driving is carried out, and this has just caused the membrane module driving pressure difference of different positions very big, thereby has determined that the membrane module water production rate difference of different positions is very big, thereby influences the running cost and the membrane module life-span of film device.
Summary of the invention
Technical assignment of the present utility model is at above weak point, and a kind of reduction film device energy consumption is provided, and the nanofiltration membrane that reduces running cost and membrane component and prolong work-ing life removes the device of sulfate anion in brine system.
The technical scheme that its technical problem that solves the utility model adopts is: this device comprises high-pressure pump, the concentrated solution reflux line, concentrated solution discharge tube and product jellyfish pipe, be connected with one section nanofiltration membrane component in turn on the pipeline that is connected between high-pressure pump and the three sections nanofiltration membrane components, one, two intersegmental topping-up pumps, two sections nanofiltration membrane components and two, three intersegmental topping-up pumps, one side of three sections nanofiltration membrane components and concentrated solution discharge tube are connected, the concentrated solution discharge tube is connected one section nanofiltration membrane component by concentrated solution reflux line and high-pressure pump, two sections nanofiltration membrane components and three sections nanofiltration membrane components are connected with product jellyfish pipe respectively.
Described concentrated solution discharge tube is provided with concentrated solution emissions adjustment valve.
Pipeline between described high-pressure pump and the one section nanofiltration membrane component is provided with and opens valve and water inlet regulated valve slowly.
The described valve of opening slowly is electronic valve or the pneumatic valve of opening slowly opened slowly.
The high-pressure pump outlet links to each other with one section nanofiltration membrane component inlet, one section nanofiltration membrane component concentrated solution outlet links to each other with one, two intersegmental topping-up pump inlets, one, two intersegmental topping-up pump outlets link to each other with two sections nanofiltration membrane component inlets, two sections nanofiltration membrane component concentrated solution outlets link to each other with two, three intersegmental topping-up pump inlets, two, three intersegmental topping-up pump outlets link to each other with three sections nanofiltration membrane component inlets, cycle arrangement like this, a final concentrated solution part is back to high-pressure pump by the concentrated solution reflux line; Another part is rich in the concentrated solution of sodium sulfate with concentrated solution discharge tube discharge system.The penetrating fluid of all nanofiltration membrane devices is pooled in the product jellyfish pipe.
Nanofiltration membrane of the present utility model removes the device of sulfate anion in brine system and compares with prior art, has characteristics such as reasonable in design, easy to use, can effectively reduce the film device energy consumption, reduces running cost and membrane component and prolong work-ing life.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing is the structural representation that nanofiltration membrane removes the device of sulfate anion in brine system.
Among the figure: 1, high-pressure pump; 2, one section nanofiltration membrane component; 3, one, two intersegmental topping-up pumps; 4, two sections nanofiltration membrane components; 5, two, three intersegmental topping-up pumps; 6, three sections nanofiltration membrane components; 7, concentrated solution reflux line; 8, concentrated solution discharge tube; 9, product jellyfish pipe; 10, open valve slowly; 11, water inlet regulated valve; 12, concentrated solution emissions adjustment valve.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
Nanofiltration membrane of the present utility model removes the device of sulfate anion in brine system, its structure comprises high-pressure pump 1, concentrated solution reflux line 7, concentrated solution discharge tube 8 and product jellyfish pipe 9, be connected with one section nanofiltration membrane component 2 in turn on the pipeline that is connected between high-pressure pump 1 and the three sections nanofiltration membrane components 6, one, two intersegmental topping-up pumps 3, two sections nanofiltration membrane components 4 and two, three intersegmental topping-up pumps 5, wherein the pipeline between high-pressure pump 1 and the one section nanofiltration membrane component 2 is provided with electronic or pneumatic valve 10 and the water inlet regulated valve 11 opened slowly, can the protective membrane element, the high pressure damage when avoiding being activated; One side of three sections nanofiltration membrane components 6 and concentrated solution discharge tube 8 are connected, and concentrated solution discharge tube 8 is provided with concentrated solution emissions adjustment valve 12, can regulate operating parameter, makes device operate in optimum condition; Concentrated solution discharge tube 8 is connected by concentrated solution reflux line 7 and high-pressure pump 1, and one section nanofiltration membrane component 2, two sections 4 and three sections nanofiltration membrane components 6 of nanofiltration membrane group are connected with product jellyfish pipe 9 respectively.
It is very simple and convenient that nanofiltration membrane of the present utility model removes its processing and fabricating of device of sulfate anion in brine system, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification sheets, be the known technology of those skilled in the art.
Claims (4)
1, nanofiltration membrane removes the device of sulfate anion in brine system, comprise high-pressure pump, the concentrated solution reflux line, concentrated solution discharge tube and product jellyfish pipe, be connected with one section nanofiltration membrane component in turn on the pipeline that it is characterized in that being connected between high-pressure pump and the three sections nanofiltration membrane components, one, two intersegmental topping-up pumps, two sections nanofiltration membrane components and two, three intersegmental topping-up pumps, one side of three sections nanofiltration membrane components and concentrated solution discharge tube are connected, the concentrated solution discharge tube is connected one section nanofiltration membrane component by concentrated solution reflux line and high-pressure pump, two sections nanofiltration membrane components and three sections nanofiltration membrane components are connected with product jellyfish pipe respectively.
2, nanofiltration membrane according to claim 1 removes the device of sulfate anion in brine system, it is characterized in that the concentrated solution discharge tube is provided with concentrated solution emissions adjustment valve.
3, nanofiltration membrane according to claim 1 removes the device of sulfate anion in brine system, it is characterized in that pipeline between high-pressure pump and the one section nanofiltration membrane component is provided with to open valve and water inlet regulated valve slowly.
4, nanofiltration membrane according to claim 3 removes the device of sulfate anion in brine system, and it is characterized in that opening slowly valve is electronic valve or the pneumatic valve of opening slowly opened slowly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201595113U CN201144172Y (en) | 2007-12-27 | 2007-12-27 | Device for removing sulfate radical from brine by nanofiltration membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201595113U CN201144172Y (en) | 2007-12-27 | 2007-12-27 | Device for removing sulfate radical from brine by nanofiltration membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144172Y true CN201144172Y (en) | 2008-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201595113U Expired - Fee Related CN201144172Y (en) | 2007-12-27 | 2007-12-27 | Device for removing sulfate radical from brine by nanofiltration membrane |
Country Status (1)
| Country | Link |
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| CN (1) | CN201144172Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481184B (en) * | 2009-02-10 | 2012-09-05 | 杭州水处理技术研究开发中心有限公司 | Novel membrane processing and salt recycling method for hot pickled mustard tube cleaning wastewater |
| EP2822674A4 (en) * | 2012-03-07 | 2015-12-16 | Chemetics Inc | Nanofiltration process for enhanced brine recovery and sulfate removal |
| CN108793201A (en) * | 2018-08-22 | 2018-11-13 | 上海氯德新材料科技有限公司 | A kind of method of purification of lithium chloride conversion fluid |
| CN110002543A (en) * | 2019-04-29 | 2019-07-12 | 华电水务工程有限公司 | A kind of underground coal mine water high-recovery divides salt system and method |
-
2007
- 2007-12-27 CN CNU2007201595113U patent/CN201144172Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481184B (en) * | 2009-02-10 | 2012-09-05 | 杭州水处理技术研究开发中心有限公司 | Novel membrane processing and salt recycling method for hot pickled mustard tube cleaning wastewater |
| EP2822674A4 (en) * | 2012-03-07 | 2015-12-16 | Chemetics Inc | Nanofiltration process for enhanced brine recovery and sulfate removal |
| CN108793201A (en) * | 2018-08-22 | 2018-11-13 | 上海氯德新材料科技有限公司 | A kind of method of purification of lithium chloride conversion fluid |
| CN108793201B (en) * | 2018-08-22 | 2020-10-09 | 上海氯德新材料科技有限公司 | Method for purifying lithium chloride conversion solution |
| CN110002543A (en) * | 2019-04-29 | 2019-07-12 | 华电水务工程有限公司 | A kind of underground coal mine water high-recovery divides salt system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20131227 |