CN218709748U - Salt lake brine pretreatment backwash water utilization device - Google Patents
Salt lake brine pretreatment backwash water utilization device Download PDFInfo
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- CN218709748U CN218709748U CN202222777617.7U CN202222777617U CN218709748U CN 218709748 U CN218709748 U CN 218709748U CN 202222777617 U CN202222777617 U CN 202222777617U CN 218709748 U CN218709748 U CN 218709748U
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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
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Abstract
The utility model discloses a salt lake brine preliminary treatment backwash water utilizes device through setting up the self-cleaning filter, filters absorption tail liquid in advance, then sends into cellulose filter and ultrafilter through the absorption tail liquid after the backwash water pump will filter, realizes carrying out the backwash to cellulose filter and ultrafilter. The utility model has the advantages of low investment cost, realizes the effective utilization of the adsorption tail liquid, and helps to save water resources and reduce environmental pollution.
Description
Technical Field
The utility model relates to a salt lake brine treatment facility technical field, concretely relates to salt lake brine preliminary treatment backwash water utilizes device.
Background
In recent years, with the development planning of new national energy, the new lithium battery energy is taken as the national key support for developing the energy industry. In the current global lithium resource statistics, the lithium resource of salt lake brine accounts for about 58% of the world lithium resource amount, and the lithium extraction from the salt lake is expected to become the global lithium mine development trend. The current salt lakes in china are mainly concentrated in the Qinghai and Tibet regions. The lithium in the sulfite type salt lake can be subjected to the steps of adsorption, analysis, separation and purification of lithium ions by adopting a titanium adsorbent. Before adsorption, brine needs to be pretreated, the brine pretreatment is the most front device for extracting lithium from the whole salt lake, a protective effect is performed on a rear device, the quality of effluent filtrate is directly related to whether an adsorbent can be prevented from being damaged and blocked by silt, organic matters and other substances, and backwashing is used for ensuring that the brine pretreatment device runs more efficiently and for a long time. Most of the existing ultrafilters are cleaned by ultrafiltration self-production filtrate, water is more treasure in Tibet areas, pretreated brine is directly discharged into lake water after passing through a titanium adsorbent in the process of extracting lithium from salt lakes, and the part of the water is basically not utilized.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art, the utility model aims at providing a salt lake brine preliminary treatment backwash water utilizes device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a device for utilizing backwash water for salt lake brine pretreatment comprises a tail brine tank, a delivery pump, a self-cleaning filter, a filtrate tank, a cellulose backwash water pump, an ultrafiltration backwash water pump, a cellulose filter and an ultrafilter;
the tail bittern tank is communicated with the self-cleaning filter through a delivery pump, and the self-cleaning filter is communicated with the filtrate tank; the filtrate tank is communicated with the cellulose filter and the ultrafilter through a cellulose backwashing water pump and an ultrafiltration backwashing water pump respectively.
Further, the cellulose filter and the ultrafilter are both communicated with the adsorption tail liquid discharge tank.
The beneficial effects of the utility model reside in that: the utility model discloses the device filters absorption tail liquid in advance through setting up the self-cleaning filter, then sends into cellulose filter and ultrafilter through the absorption tail liquid after the backwash water pump will filter, realizes carrying out the backwash to cellulose filter and ultrafilter. The utility model has the advantages of low investment cost, realizes the effective utilization of the adsorption tail liquid, and helps to save water resources and reduce environmental pollution.
Drawings
Fig. 1 is the structural schematic diagram of the salt lake brine pretreatment backwash water utilization device in the embodiment of the utility model.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed embodiments and the specific operation processes are provided, but the protection scope of the present invention is not limited to the present embodiment.
Example 1
The embodiment provides a salt lake brine pretreatment backwash water utilization device, which comprises a tail brine tank 2, a delivery pump 3, a self-cleaning filter 4, a filtrate tank 5, a cellulose backwash water pump 7, an ultrafiltration backwash water pump 6, a cellulose filter 9 and an ultrafilter 8, wherein the tail brine tank 2 is connected with the self-cleaning filter 4;
the tail bittern tank 2 is communicated with the self-cleaning filter 4 through a delivery pump 3, and the self-cleaning filter 4 is communicated with the filtrate tank 5; the filtrate tank 5 is communicated with a cellulose filter 9 and an ultrafilter 8 through a cellulose backwashing water pump 7 and an ultrafiltration backwashing water pump 6 respectively.
In the present embodiment, both the cellulose filter 9 and the ultrafilter 8 communicate with the adsorption tail liquid discharge tank 10.
The working process of the backwashing water utilization device for the salt lake brine pretreatment comprises the following steps: adsorption tail liquid 1 obtained after pretreated brine passes through a titanium adsorbent enters a tail brine tank 2 through a pipeline, the adsorption tail liquid 1 in the tail brine tank 2 enters a self-cleaning filter 4 through a delivery pump 3, the self-cleaning filter 4 filters macromolecular compounds, suspended matters and the like in the adsorption tail liquid through a self-filtering function and then sends the macromolecular compounds, the suspended matters and the like into a filtrate tank 5, filtrate obtained after filtration is sent into an ultrafilter 8 and a cellulose filter 9 through an ultrafiltration backwashing water pump 6 and a cellulose backwashing water pump 7, the ultrafilter 8 and the cellulose filter 9 are respectively backwashed, and the backwashing time is set according to the cleaning time of the cellulose filter and the ultrafilter. After the cleaning is completed, the backwash liquid enters the adsorption tail liquid discharge tank 10 and is finally discharged into lake water. The whole process can be automatically controlled, the adsorption tail liquid obtained after the pretreated brine passes through the titanium adsorbent is well recycled, the water is saved, and the problems of blockage and scaling of a pretreatment system device are effectively solved.
Example 2
This example provides an application of the device described in example 1. In a certain salt lake lithium extraction enterprise, absorption tail liquid 44643m needs to be generated every day 3 Wherein the lithium content is 44.63mg/L.
Handle 5000m 3 The tail brine adsorption device comprises a tail brine tank 2, a self-cleaning filter 4, a self-cleaning filter, a filtering tank 5 and a filtering time setting device, wherein the tail brine tank 2 is conveyed by an adsorption tail liquid 1 through a pipeline, the adsorption tail liquid 1 in the tail brine tank is conveyed into the self-cleaning filter 4 through a conveying pump 3, the self-cleaning filter filters macromolecular compounds, suspended matters and the like in the adsorption tail liquid through a self-filtering function, and then the self-cleaning filter enters the filtering tank 5, and the filtering time is 6000s. The filtered filtrate passes through a cellulose backwashing water pump 7 (the flow rate is 450 m) 3 H) entering celluloseThe filter 9 was cleaned and the backwash time was set to 6000s. The filtered filtrate is also passed through an ultrafiltration backwashing water pump 6 (flow rate 400 m) 3 And/h) enters the ultrafiltration membrane 8 for backwashing, and the backwashing time is 6000s. After the cleaning is completed, the backwash liquid enters the adsorption tail liquid discharge tank 10 and is finally discharged into lake water together. The whole process is automatically controlled, and the cellulose filter and the ultrafiltration device after the back washing meet the requirements of raw brine water inlet.
Various changes and modifications can be made by those skilled in the art based on the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.
Claims (2)
1. A salt lake brine pretreatment backwash water utilization device is characterized by comprising a tail brine tank (2), a delivery pump (3), a self-cleaning filter (4), a filtrate tank (5), a cellulose backwash water pump (7), an ultrafiltration backwash water pump (6), a cellulose filter (9) and an ultrafilter (8);
the tail bittern tank (2) is communicated with the self-cleaning filter (4) through a delivery pump (3), and the self-cleaning filter (4) is communicated with the filtrate tank (5); the filtrate tank (5) is communicated with the cellulose filter (9) and the ultrafilter (8) through a cellulose backwashing water pump (7) and an ultrafiltration backwashing water pump (6) respectively.
2. The apparatus for utilizing backwash water for brine pretreatment in salt lake brine according to claim 1, wherein the cellulose filter (9) and the ultrafilter (8) are both in communication with the adsorption tail liquid discharge tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222777617.7U CN218709748U (en) | 2022-10-20 | 2022-10-20 | Salt lake brine pretreatment backwash water utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222777617.7U CN218709748U (en) | 2022-10-20 | 2022-10-20 | Salt lake brine pretreatment backwash water utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218709748U true CN218709748U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222777617.7U Active CN218709748U (en) | 2022-10-20 | 2022-10-20 | Salt lake brine pretreatment backwash water utilization device |
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| Country | Link |
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| CN (1) | CN218709748U (en) |
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2022
- 2022-10-20 CN CN202222777617.7U patent/CN218709748U/en active Active
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