CN219950601U - Pretreatment system for qualified liquid of lithium titanium adsorbent extracted from salt lake - Google Patents
Pretreatment system for qualified liquid of lithium titanium adsorbent extracted from salt lake Download PDFInfo
- Publication number
- CN219950601U CN219950601U CN202321030403.1U CN202321030403U CN219950601U CN 219950601 U CN219950601 U CN 219950601U CN 202321030403 U CN202321030403 U CN 202321030403U CN 219950601 U CN219950601 U CN 219950601U
- Authority
- CN
- China
- Prior art keywords
- communicated
- ultrafiltration
- water inlet
- filter
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 63
- 239000003463 adsorbent Substances 0.000 title claims abstract description 16
- SWAIALBIBWIKKQ-UHFFFAOYSA-N lithium titanium Chemical compound [Li].[Ti] SWAIALBIBWIKKQ-UHFFFAOYSA-N 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 70
- 239000012528 membrane Substances 0.000 claims abstract description 37
- 238000003860 storage Methods 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 27
- 229920002678 cellulose Polymers 0.000 claims abstract description 26
- 239000001913 cellulose Substances 0.000 claims abstract description 26
- 238000004458 analytical method Methods 0.000 claims abstract description 19
- 239000000706 filtrate Substances 0.000 claims abstract description 14
- 239000010802 sludge Substances 0.000 claims description 8
- 239000012065 filter cake Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052744 lithium Inorganic materials 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000001914 filtration Methods 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 238000001728 nano-filtration Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000001223 reverse osmosis Methods 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The utility model discloses a pretreatment system for qualified liquid of a lithium-titanium adsorbent extracted from a salt lake, wherein a storage tank for analyzing qualified liquid is communicated with a water inlet of a cellulose filter through a water inlet pump of the cellulose filter; the filtrate outlet of the cellulose filter is communicated with the water inlet of the ultrafiltration water inlet tank, and the backwash water outlet is communicated with the inlet of the plate-and-frame filter press; the water outlet of the ultrafiltration water inlet tank is communicated with the inlet of the self-cleaning filter through an ultrafiltration water inlet pump; the filtrate outlet of the self-cleaning filter is communicated with an ultrafiltration membrane system; the ultrafiltration water outlet of the ultrafiltration membrane system is communicated with the ultrafiltration water producing tank. The utility model pretreats the analysis qualified liquid by adopting a cellulose filter and an ultrafiltration membrane system, and can effectively remove various impurities in the analysis qualified liquid, thereby improving the final lithium recovery rate and having the advantages of low investment cost, water resource saving, environmental pollution reduction and the like.
Description
Technical Field
The utility model relates to the technical field of lithium extraction in a salt lake, in particular to a pretreatment system for qualified liquid of a lithium-titanium adsorbent extracted in a salt lake.
Background
The current methods for extracting lithium from salt lakes mainly comprise an adsorption method (adsorption+membrane integration method), a membrane method, an electrodialysis method (one of membrane methods), a calcination method, a solvent extraction method and the like, and a solar cell crystallization method and the like. The technology mainly adopted for the sulfite type salt lake is a titanium adsorption and coupling membrane method lithium extraction technology, a continuous ion exchange device is used for adsorbing lithium in raw halogen by using a titanium adsorbent, hydrochloric acid is used for resolving the raw halogen after adsorption saturation, the liquid content of the resolved qualified liquid is large, and meanwhile, the resolved qualified liquid contains a large amount of calcium and magnesium ions, insoluble matters and the like, and the resolved qualified liquid needs to be pretreated for impurity removal. Therefore, the device capable of effectively preprocessing and removing impurities from the analysis qualified liquid has great practical value.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a pretreatment system for qualified liquid of a lithium titanium adsorbent extracted from a salt lake.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a pretreatment system for qualified liquid of a lithium-titanium adsorbent extracted from a salt lake comprises a storage tank for analyzing the qualified liquid, a water inlet pump for a cellulose filter, the cellulose filter, an ultrafiltration water inlet tank, an ultrafiltration water inlet pump, a self-cleaning filter, an ultrafiltration membrane system, an ultrafiltration water producing tank and a plate-and-frame filter press; the analysis qualified liquid storage tank is communicated with a water inlet of the cellulose filter through a cellulose filter water inlet pump; the filtrate outlet of the cellulose filter is communicated with the water inlet of the ultrafiltration water inlet tank, and the backwash water outlet is communicated with the inlet of the plate-and-frame filter press; the water outlet of the ultrafiltration water inlet tank is communicated with the inlet of the self-cleaning filter through an ultrafiltration water inlet pump; the filtrate outlet of the self-cleaning filter is communicated with the ultrafiltration membrane system; and an ultrafiltration water outlet of the ultrafiltration membrane system is communicated with the ultrafiltration water producing tank.
Further, the pretreatment system of the qualified liquid of the lithium titanium adsorbent extracted from the salt lake further comprises a ground tank storage tank, wherein a self-cleaning liquid outlet of a self-cleaning filter, a backwash water outlet of an ultrafiltration membrane system and a filtrate outlet of a plate-and-frame filter press are all communicated with the ground tank storage tank, and the ground tank storage tank is communicated with the analysis qualified liquid storage tank.
Further, the pretreatment system of the qualified liquid of the lithium-titanium adsorbent extracted from the salt lake further comprises a sludge discharge storage tank, and a filter cake outlet of the plate-and-frame filter press is communicated with the sludge discharge storage tank.
The utility model has the beneficial effects that: the utility model pretreats the analysis qualified liquid by adopting a cellulose filter and an ultrafiltration membrane system, and can effectively remove various impurities in the analysis qualified liquid, thereby improving the final lithium recovery rate and having the advantages of low investment cost, water resource saving, environmental pollution reduction and the like.
Drawings
Fig. 1 is a schematic diagram showing the composition and connection of a pretreatment system for qualified liquid of a lithium titanium adsorbent extracted from a salt lake in example 1 of the present utility model.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, and it should be noted that, while the present embodiment provides a detailed implementation and a specific operation process on the premise of the present technical solution, the protection scope of the present utility model is not limited to the present embodiment.
Example 1
The embodiment provides a pretreatment system for qualified liquid of a lithium-titanium adsorbent extracted from a salt lake, which comprises a storage tank 1 for analyzing qualified liquid, a water inlet pump 2 for a cellulose filter, a cellulose filter 3, an ultrafiltration water inlet tank 4, an ultrafiltration water inlet pump 5, a self-cleaning filter 6, an ultrafiltration membrane system 7, an ultrafiltration water production tank 8, a plate-and-frame filter press 9, a sludge discharge storage tank 10 and a ground tank storage tank 11; the analysis qualified liquid storage tank 1 is communicated with a water inlet of the cellulose filter 3 through a cellulose filter water inlet pump 2; the filtrate outlet of the cellulose filter 3 is communicated with the water inlet of the ultrafiltration water inlet tank 4, and the backwash water outlet is communicated with the inlet of the plate-and-frame filter press 9; the water outlet of the ultrafiltration water inlet tank 4 is communicated with the inlet of the self-cleaning filter 6 through an ultrafiltration water inlet pump 5; the filtrate outlet of the self-cleaning filter 6 is communicated with the ultrafiltration membrane system 7, and the self-cleaning liquid outlet is communicated with the ground tank 11; the ultrafiltration water outlet of the ultrafiltration membrane system 7 is communicated with the ultrafiltration water producing tank 8, and the backwash water outlet of the ultrafiltration membrane system 7 is communicated with the geosyncline storage tank 11; the filtrate outlet of the plate-and-frame filter press 9 is communicated with a geosyncline storage tank 11, and the filter cake outlet of the plate-and-frame filter press 9 is communicated with a sludge discharge storage tank 10.
The working principle of the pretreatment system for the qualified liquid of the lithium titanium adsorbent extracted from the salt lake is as follows:
the analysis qualified liquid in the analysis qualified liquid storage tank 1 is conveyed to the cellulose filter 3 for preliminary filtration through the cellulose filter water inlet pump 2, and insoluble suspended matters in the analysis qualified liquid, including titanium adsorbent solid broken particles, insoluble matters and colloid after titanium dissolution loss and the like are mainly removed. The filtered filtrate enters an ultrafiltration water inlet tank 4, the backwash water of the cellulose filter 3 enters a plate-and-frame filter press 9 for filter pressing, a filter cake obtained by filter pressing is discharged into a sludge discharge storage tank 10, and the filtrate obtained by filter pressing is discharged into a ground tank storage tank 11.
The qualified liquid which is preliminarily filtered in the ultrafiltration water inlet tank 4 is conveyed to the self-cleaning filter 6 through the ultrafiltration water inlet pump 5. The self-cleaning filter is characterized in that a filter screen is utilized to directly intercept impurities in water, so that suspended matters and particulate matters which are larger than 100 microns in a qualified liquid water body are further removed, the turbidity of the qualified liquid can be effectively reduced, the water quality is purified, dirt and rust in the inlet liquid of a subsequent ultrafiltration membrane system are reduced, and the scratch to an ultrafiltration membrane is reduced. After the self-cleaning filter reaches a certain filtering pressure, the self-cleaning filter can automatically clean and discharge the self-cleaning liquid to the ground tank 11.
The qualified liquid with pressure filtered by the self-cleaning filter 6 enters an ultrafiltration membrane system 7, most of bacteria, colloid substances and tiny (more than 0.02 micron) particle substances are trapped on the surface of the membrane, water and water-soluble substances penetrate through membrane holes, and the quality of the qualified liquid is purified in the ultrafiltration membrane system. TSS and colloid materials are basically removed through the filtration effect of the ultrafiltration membrane. The ultrafiltration water enters an ultrafiltration water production tank 8 to wait for the subsequent entry into a reverse osmosis nanofiltration system. After the ultrafiltration membrane is filtered for a period of time, the polluted layer deposited on the surface of the ultrafiltration membrane is required to be backwashed, and mainly, water in the ultrafiltration water production tank 8 is pumped into a membrane stack for backwashing. The backwash water of the ultrafiltration membrane system enters and is discharged to the geosyncline storage tank 11.
Finally, the liquid in the geosyncline tank 11 is returned to the analysis qualified liquid tank 1 by pumping.
Through the pretreatment system, various impurities in the analysis qualified liquid can be effectively removed, and the analysis qualified liquid can enter a reverse osmosis nanofiltration system at the rear section.
Example 2
This embodiment provides an application example of the preprocessing system described in embodiment 1. For some lithium extraction enterprises in salt lakes, 13104m of adsorption analysis qualified liquid is generated every day 3 The water content of the qualified liquid entering the pretreatment of the qualified liquid is 546m 3 And/h, wherein the suspended matters in the qualified liquid are 20mg/L, and the TOC is 10mg/L.
Analyzing the qualified liquid in the qualified liquid storage tank 1, using a cellulose filter water inlet pump 2 to 594m 3 The flow rate/h was fed to the cellulose filter 3 for preliminary filtration, and the SS after filtration was 10mg/L and the TOC was 9mg/L. The filtered liquid enters an ultrafiltration water inlet tank 4, and the backwash water of the cellulose filter is 15.4m 3 The mixture/h enters a plate-and-frame filter press 9 for filter pressing, the filter cake is discharged into a sludge discharge groove 10, the water content of the filter cake is 60 percent, and the filtrate is 12.3m 3 The flow rate of/h is discharged to the geosyncline tank 11.
Passing qualified liquid of preliminary filtration in the ultrafiltration water inlet tank 4 through an ultrafiltration water inlet pump 5 at 577m 3 The flow rate/h is fed to the self-cleaning filter 6. Self-cleaning filterAfter a certain filtering pressure is reached, the cleaning is automatically performed and the self-cleaning liquid is discharged to the ground tank 11.
And the qualified liquid with pressure after self-cleaning the filter enters an ultrafiltration membrane system 7. The filtration through the ultrafiltration membrane was 0.1mg/L for SS and 4.5mg/L for TOC. The ultrafiltration water enters an ultrafiltration water producing tank 8 and finally is 542m 3 And/h, entering a subsequent reverse osmosis nanofiltration system. After the ultrafiltration membrane is filtered for a period of time, the polluted layer deposited on the surface of the ultrafiltration membrane is required to be backwashed, and mainly, water in the ultrafiltration water production tank 8 is pumped into a membrane stack for backwashing. Backwash water of the ultrafiltration membrane stack was 34.7m 3 And/h into the tank 11.
The liquid in the geosyncline tank 11 is returned to the analysis qualified liquid tank 1 by pumping.
Through the pretreatment system, various impurities in the qualified liquid are finally removed, and the qualified liquid can enter a reverse osmosis nanofiltration system at the rear section, the final lithium recovery rate can reach 99.4%, the SS is 0.1mg/L, and the TOC is 4.5mg/L.
Various modifications and variations of the present utility model will be apparent to those skilled in the art in light of the foregoing teachings and are intended to be included within the scope of the following claims.
Claims (3)
1. The pretreatment system for the qualified liquid of the lithium-titanium adsorbent extracted from the salt lake is characterized by comprising an analysis qualified liquid storage tank (1), a cellulose filter water inlet pump (2), a cellulose filter (3), an ultrafiltration water inlet tank (4), an ultrafiltration water inlet pump (5), a self-cleaning filter (6), an ultrafiltration membrane system (7), an ultrafiltration water production tank (8) and a plate-and-frame filter press (9); the analysis qualified liquid storage tank (1) is communicated with a water inlet of the cellulose filter (3) through a cellulose filter water inlet pump (2); the filtrate outlet of the cellulose filter (3) is communicated with the water inlet of the ultrafiltration water inlet tank (4), and the backwash water outlet is communicated with the inlet of the plate-and-frame filter press (9); the water outlet of the ultrafiltration water inlet tank (4) is communicated with the inlet of the self-cleaning filter (6) through an ultrafiltration water inlet pump (5); the filtrate outlet of the self-cleaning filter (6) is communicated with the ultrafiltration membrane system (7); the ultrafiltration water outlet of the ultrafiltration membrane system (7) is communicated with the ultrafiltration water producing tank (8).
2. The pretreatment system for qualified liquid of lithium titanium adsorbent extracted from salt lake according to claim 1, further comprising a geosyncline storage tank (11), wherein a self-cleaning liquid outlet of the self-cleaning filter (6), a backwash water outlet of the ultrafiltration membrane system (7) and a filtrate outlet of the plate-and-frame filter press (9) are all communicated with the geosyncline storage tank (11), and the geosyncline storage tank (11) is communicated with the analysis qualified liquid storage tank (1).
3. The pretreatment system for qualified liquid of the lithium titanium adsorbent extracted from the salt lake according to claim 1, further comprising a sludge discharge storage tank (10), wherein a filter cake outlet of the plate-and-frame filter press (9) is communicated with the sludge discharge storage tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321030403.1U CN219950601U (en) | 2023-04-28 | 2023-04-28 | Pretreatment system for qualified liquid of lithium titanium adsorbent extracted from salt lake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321030403.1U CN219950601U (en) | 2023-04-28 | 2023-04-28 | Pretreatment system for qualified liquid of lithium titanium adsorbent extracted from salt lake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219950601U true CN219950601U (en) | 2023-11-03 |
Family
ID=88551925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321030403.1U Active CN219950601U (en) | 2023-04-28 | 2023-04-28 | Pretreatment system for qualified liquid of lithium titanium adsorbent extracted from salt lake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219950601U (en) |
-
2023
- 2023-04-28 CN CN202321030403.1U patent/CN219950601U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104609605B (en) | Device and method for realizing printing and dyeing dyed wastewater reuse and dye recovery | |
| CN202912799U (en) | Comprehensive recycling system of metal plating wastewater resources | |
| CN108975556B (en) | Method for purifying and recovering aged phosphoric acid polishing solution | |
| WO2022143014A1 (en) | Resourceful treatment system and method for sodium nitrate wastewater | |
| CN201610402U (en) | Recycling and deep treatment device for electronic electroplating wastewater | |
| CN101580318B (en) | Beneficiation wastewater treatment method circularly used for ceramic filter | |
| CN1301331C (en) | Method for extracting fermentikve macrolide antibiotics using membrane | |
| CN104071925A (en) | Zero-drainage treatment system and zero-drainage treatment method for nickel plating wastewater in steel workshop | |
| CN104529020B (en) | A kind of automobile decoration piece electroplating waste water treatment system | |
| CN210313765U (en) | Fluorine-containing high-salinity wastewater recycling system | |
| CN203602414U (en) | System for recovering silvering wastewater and silver | |
| CN219950601U (en) | Pretreatment system for qualified liquid of lithium titanium adsorbent extracted from salt lake | |
| CN1931729A (en) | Process of treating and utilizing acid waste water containing heavy metal | |
| CN109467242B (en) | Circuit board comprehensive wastewater treatment and copper recovery process capable of saving alkali consumption | |
| CN111762919A (en) | Biogas slurry recycling treatment method and treatment system | |
| CN216129416U (en) | Drinking water defluorination clean system | |
| CN216472254U (en) | Sulfuric acid process titanium white powder is washed weak waste acid membrane integration resourceful treatment system once | |
| CN205087969U (en) | Titanium white powder plain boiled water recycling system | |
| CN210796016U (en) | Electrode foil corrosion wastewater treatment system | |
| CN210505915U (en) | High enriched waste water zero release processing apparatus | |
| CN208414055U (en) | A kind of cadmium wastewater resource utilization system and integrated equipment | |
| CN1500799A (en) | Method for extracting erythromycin using membrane separation | |
| CN209957536U (en) | System for recycling high-concentration waste liquid containing aluminum phosphate and triethylamine | |
| CN113385036A (en) | Classified recovery device and method for ultrafiltration drainage | |
| CN100595207C (en) | Method for continuous extraction in casein producing waste water by using film filtration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |