Salt lake lithium adsorption separation device

Abstract

The utility model discloses a salt lake lithium adsorption separation device, and particularly relates to the technical field of lithium adsorption separation, which comprises a water inlet pipe, a filtering mechanism is fixedly mounted at one end of the water inlet pipe, a connecting pipe is fixedly mounted at one end, far away from the water inlet pipe, of the filtering mechanism, and a plurality of groups of adsorption mechanisms are arranged at one end, far away from the filtering mechanism, of the connecting pipe. A drainage pipe is fixedly mounted at one end, away from the connecting pipe, of the adsorption mechanism at the tail end; each adsorption mechanism comprises an adsorption outer cylinder, a water inlet pipe is fixedly mounted at the bottom end of each adsorption outer cylinder, and a water outlet pipe is vertically mounted at the top of each adsorption outer cylinder. In addition, the adsorption columns can be quickly disassembled and replaced by disassembling the sealing cover, and shutdown is not needed, so that the use effect of the whole adsorption separation device and the adsorption separation efficiency of the salt lake brine are improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium adsorption and separation technology, specifically a lithium adsorption and separation device for salt lakes. Background Technology

[0002] Lithium adsorption separation in salt lakes is an important method for extracting lithium resources, especially suitable for lithium resources in salt lakes. Currently, lithium in salt lakes mainly exists in the form of dissolved salt water. The adsorption method can achieve efficient separation and concentration. Commonly used adsorbents mainly include zeolites and zeolite-like materials, lithium-selective resins, porous carbon materials, and nanomaterials.

[0003] In the adsorption and separation of lithium from salt lakes, the brine is usually introduced into a multi-stage series adsorption reaction tower for adsorption and separation. However, due to the presence of other impurities in the brine, the adsorption columns become clogged after a period of time, requiring disassembly and replacement. Alternatively, repeated use over a long period can lead to performance degradation, also necessitating disassembly and replacement. The replacement process requires shutdown, affecting the overall adsorption and separation efficiency and effect of lithium from the salt lake. To address these issues, we propose a lithium adsorption and separation device for salt lakes. Utility Model Content

[0004] The purpose of this invention is to provide a lithium adsorption and separation device for salt lakes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lithium adsorption and separation device for salt lakes, comprising an inlet pipe, a filter mechanism fixedly installed at one end of the inlet pipe, a connecting pipe fixedly installed at the end of the filter mechanism away from the inlet pipe, a plurality of adsorption mechanisms provided at the end of the connecting pipe away from the filter mechanism, and a drain pipe fixedly installed at the end of the adsorption mechanism away from the connecting pipe.

[0006] The adsorption mechanism includes an adsorption outer cylinder, an inlet pipe fixedly installed at the bottom of the adsorption outer cylinder, an outlet pipe vertically installed at the top of the adsorption outer cylinder, an adsorption column provided in the adsorption outer cylinder, a cap provided at the top of the adsorption outer cylinder, a guide pipe fixedly installed at the end of the outlet pipe, a first valve fixedly installed at the bottom of the inlet pipe, a second valve fixedly installed at the bottom of the guide pipe, a first three-way pipe fixedly installed at the bottom of the first valve, a second three-way pipe fixedly installed at the bottom of the second valve, and a third valve fixedly installed between the first three-way pipe and the second three-way pipe.

[0007] Preferably, an installation ring seat is fixedly installed on the inner upper wall of the cap, the installation ring seat is fixedly installed on the top of the adsorption column by screws, a bottom retaining ring seat is fixedly installed on the bottom of the adsorption column by screws, a sealing retaining ring is fixedly installed on the inner lower wall of the adsorption outer cylinder, the bottom retaining ring seat is movably engaged in the sealing retaining ring, and a first sealing ring is movably installed on the outer side of the bottom retaining ring seat, the bottom end of the first sealing ring is in contact with the top end of the sealing retaining ring.

[0008] Preferably, the bottom end of the cap is provided with a threaded component, which is threadedly installed on the top inner side of the adsorption outer cylinder. A positioning ring is fixedly fastened to the top inner side of the adsorption outer cylinder, and a second sealing ring is provided at the top end of the positioning ring. The bottom end of the threaded component and the upper surface of the second sealing ring are in contact.

[0009] Preferably, the second tee tube and the first tee tube are fixedly installed in two adjacent adsorption mechanisms.

[0010] Preferably, the end of the connecting pipe away from the filter mechanism and the end of the first three-way pipe in the corresponding adsorption mechanism are fixedly installed.

[0011] Preferably, one end of the drain pipe is fixedly installed with the end of the second tee pipe in the corresponding adsorption mechanism.

[0012] Preferably, the filtration mechanism includes a filter frame, an inlet fixedly installed on the top of one side of the filter frame, an end of the inlet fixedly installed on one end of the inlet pipe, an outlet fixedly installed on the bottom of the side of the filter frame away from the inlet, an end of the outlet fixedly installed on one end of the connecting pipe, and a plurality of filter elements evenly distributed in the filter frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. By setting up multiple adsorption mechanisms in series, lithium adsorption and separation of salt lake brine can be effectively achieved. The adsorption columns can be quickly disassembled and replaced by removing the caps without stopping the machine, thereby improving the overall performance of the adsorption and separation device and the adsorption and separation efficiency of salt lake brine.

[0015] 2. By setting up a filtration mechanism, the brine of the salt lake is pre-treated by filtration, which effectively reduces the blockage of the adsorption column caused by impurities in the brine. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the adsorption mechanism in this utility model.

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.

[0021] Figure 5 This is a schematic diagram of the filtration mechanism in this utility model.

[0022] In the diagram: 1. Inlet pipe; 11. Connecting pipe; 12. Drain pipe; 2. Filter mechanism; 21. Filter frame; 22. Inlet; 23. Outlet; 24. Filter element; 3. Adsorption mechanism; 31. Adsorption outer cylinder; 311. Inlet pipe; 312. Outlet pipe; 32. Adsorption column; 321. Mounting ring seat; 322. Bottom clamping ring seat; 323. First sealing ring; 324. Sealing clamping ring; 33. Cover; 331. Threaded part; 332. Positioning ring; 333. Second sealing ring; 34. Water guide pipe; 35. First valve; 36. Second valve; 37. Third valve; 38. First tee pipe; 39. Second tee pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Figure 1-5As shown, this utility model provides a lithium adsorption and separation device for salt lakes, including an inlet pipe 1, a filter mechanism 2 fixedly installed at one end of the inlet pipe 1, a connecting pipe 11 fixedly installed at the end of the filter mechanism 2 away from the inlet pipe 1, a plurality of adsorption mechanisms 3 provided at the end of the connecting pipe 11 away from the filter mechanism 2, and a drain pipe 12 fixedly installed at the end of the adsorption mechanism 3 away from the connecting pipe 11.

[0025] The adsorption mechanism 3 includes an adsorption outer cylinder 31, an inlet pipe 311 fixedly installed at the bottom end of the adsorption outer cylinder 31, an outlet pipe 312 vertically installed at the top end of the adsorption outer cylinder 31, an adsorption column 32 provided in the adsorption outer cylinder 31, a cap 33 provided at the top end of the adsorption outer cylinder 31, a guide pipe 34 fixedly installed at the end of the outlet pipe 312, a first valve 35 fixedly installed at the bottom end of the inlet pipe 311, a second valve 36 fixedly installed at the bottom end of the guide pipe 34, a first three-way pipe 38 fixedly installed at the bottom end of the first valve 35, a second three-way pipe 39 fixedly installed at the bottom end of the second valve 36, and a third valve 37 fixedly installed between the first three-way pipe 38 and the second three-way pipe 39. In the initial state, the first valve 35 and the second valve 36 are in the open state, and the third valve 37 is in the closed state.

[0026] An installation ring seat 321 is fixedly installed on the inner upper wall of the cap 33. The installation ring seat 321 is fixedly installed on the top of the adsorption column 32 by screws, which facilitates the disassembly of the adsorption column 32. A bottom retaining ring seat 322 is fixedly installed on the bottom of the adsorption column 32 by screws. A sealing retaining ring 324 is fixedly installed on the inner lower wall of the adsorption outer cylinder 31. The bottom retaining ring seat 322 is movably engaged in the sealing retaining ring 324. A first sealing ring 323 is movably installed on the outer side of the bottom retaining ring seat 322. The bottom end of the first sealing ring 323 contacts the top end of the sealing retaining ring 324 to seal and engage the sealing retaining ring 324 and the adsorption column 32.

[0027] The bottom end of the cover 33 is provided with a threaded part 331, which is threadedly installed on the top inner side of the outer adsorption cylinder 31. The top inner side of the outer adsorption cylinder 31 is fixedly fitted with a positioning ring 332, and the top end of the positioning ring 332 is provided with a second sealing ring 333. The bottom end of the threaded part 331 and the upper surface of the second sealing ring 333 are in contact to perform threaded sealing installation of the cover 33 and the top end of the outer adsorption cylinder 31, thereby facilitating the quick disassembly and replacement of the adsorption column 32 by disassembling the cover 33.

[0028] The second three-way pipe 39 and the first three-way pipe 38 in two adjacent adsorption mechanisms 3 are fixedly installed to connect multiple adsorption mechanisms 3; the end of the connecting pipe 11 away from the filter mechanism 2 and the end of the first three-way pipe 38 in the corresponding adsorption mechanism 3 are fixedly installed to connect the filter mechanism 2 and the adsorption mechanism 3; one end of the drain pipe 12 and the end of the second three-way pipe 39 in the corresponding adsorption mechanism 3 are fixedly installed to connect the drain pipe 12 and the adsorption mechanism 3.

[0029] The filter mechanism 2 includes a filter frame 21. A water inlet 22 is fixedly installed on the top side of the filter frame 21. The end of the water inlet 22 is fixedly installed on one end of the water inlet pipe 1. A water outlet 23 is fixedly installed on the bottom side of the filter frame 21 away from the water inlet 22. The end of the water outlet 23 is fixedly installed on one end of the connecting pipe 11. A plurality of filter elements 24 are evenly distributed in the filter frame 21.

[0030] Working principle: In the initial state, the first valve 35 and the second valve 36 in the multiple adsorption mechanisms 3 are in the open state, and the third valve 37 is in the closed state, so that multiple adsorption outer cylinders 31 form a series structure.

[0031] The brine from the salt lake is introduced into the filter frame 21 through the inlet pipe 1 and the inlet 22, and filtered through multiple filter elements 24. Then, it is introduced into multiple adsorption outer cylinders 31 connected in series through the outlet 23 and the connecting pipe 11. After passing through multiple sets of adsorption columns 32 connected in series, lithium adsorption separation is performed. The brine from the salt lake after separation is discharged through the drain pipe 12.

[0032] This achieves the filtration pretreatment of salt lake brine, effectively reducing the blockage of adsorption column 32 caused by impurities in the salt lake brine;

[0033] Furthermore, after a period of adsorption and separation, repeated use of the adsorption column 32 will cause a decline in performance, requiring disassembly and replacement. Without stopping the machine, the first valve 35 and the second valve 36 are closed at the location where the adsorption column 32 needs to be disassembled, and the third valve 37 is opened. This allows the adsorption outer cylinders 31 in the other multiple adsorption mechanisms 3 to continue to form a series structure, and the brine from the salt lake will not flow into the adsorption outer cylinder 31 at the location where the adsorption column 32 needs to be disassembled. This facilitates the quick disassembly and replacement of the adsorption column 32 by removing the cap 33, thereby improving the overall performance of the adsorption and separation device and the adsorption and separation efficiency of the brine from the salt lake.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium adsorption and separation device for salt lakes, comprising an inlet pipe (1), characterized in that: A filter mechanism (2) is fixedly installed at one end of the water inlet pipe (1). A connecting pipe (11) is fixedly installed at the end of the filter mechanism (2) away from the water inlet pipe (1). Multiple adsorption mechanisms (3) are provided at the end of the connecting pipe (11) away from the filter mechanism (2). A drain pipe (12) is fixedly installed at the end of the adsorption mechanism (3) away from the connecting pipe (11). The adsorption mechanism (3) includes an adsorption outer cylinder (31), an inlet pipe (311) is fixedly installed at the bottom end of the adsorption outer cylinder (31), an outlet pipe (312) is vertically installed at the top end of the adsorption outer cylinder (31), an adsorption column (32) is provided in the adsorption outer cylinder (31), a cap (33) is provided at the top end of the adsorption outer cylinder (31), a guide pipe (34) is fixedly installed at the end of the outlet pipe (312), a first valve (35) is fixedly installed at the bottom end of the inlet pipe (311), a second valve (36) is fixedly installed at the bottom end of the guide pipe (34), a first three-way pipe (38) is fixedly installed at the bottom end of the first valve (35), a second three-way pipe (39) is fixedly installed at the bottom end of the second valve (36), and a third valve (37) is fixedly installed between the first three-way pipe (38) and the second three-way pipe (39).

2. The lithium adsorption and separation device for salt lakes according to claim 1, characterized in that: An installation ring seat (321) is fixedly installed on the inner upper wall of the cap (33). The installation ring seat (321) is fixedly installed on the top of the adsorption column (32) by screws. A bottom retaining ring seat (322) is fixedly installed on the bottom of the adsorption column (32) by screws. A sealing retaining ring (324) is fixedly installed on the inner lower wall of the adsorption outer cylinder (31). The bottom retaining ring seat (322) is movably engaged in the sealing retaining ring (324). A first sealing ring (323) is movably installed on the outer side of the bottom retaining ring seat (322). The bottom end of the first sealing ring (323) is in contact with the top end of the sealing retaining ring (324).

3. The lithium adsorption and separation device for salt lakes according to claim 1, characterized in that: The bottom end of the cover (33) is provided with a threaded part (331), which is threadedly installed on the top inner side of the adsorption outer cylinder (31). The top inner side of the adsorption outer cylinder (31) is fixedly provided with a positioning ring (332), and the top end of the positioning ring (332) is provided with a second sealing ring (333). The bottom end of the threaded part (331) is in contact with the upper surface of the second sealing ring (333).

4. The lithium adsorption and separation device for salt lakes according to claim 1, characterized in that: The second three-way pipe (39) and the first three-way pipe (38) in the two adjacent adsorption mechanisms (3) are fixedly installed.

5. The lithium adsorption and separation device for salt lakes according to claim 1, characterized in that: The end of the connecting pipe (11) away from the filter mechanism (2) and the end of the first three-way pipe (38) in the corresponding adsorption mechanism (3) are fixedly installed.

6. The lithium adsorption and separation device for salt lakes according to claim 1, characterized in that: One end of the drain pipe (12) and the end of the second three-way pipe (39) in the corresponding adsorption mechanism (3) are fixedly installed.

7. The lithium adsorption and separation device for salt lakes according to claim 1, characterized in that: The filter mechanism (2) includes a filter frame (21), an inlet (22) is fixedly installed on the top of one side of the filter frame (21), the end of the inlet (22) is fixedly installed on one end of the inlet pipe (1), an outlet (23) is fixedly installed on the bottom of the side of the filter frame (21) away from the inlet (22), the end of the outlet (23) is fixedly installed on one end of the connecting pipe (11), and a plurality of filter elements (24) are evenly distributed in the filter frame (21).

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