Multistage membrane separation gallium and lithium enrichment device

Abstract

The utility model relates to the technical field of material recovery, in particular to a multistage membrane separation gallium and lithium enrichment device. According to the technical scheme, the device comprises a tank body, an inner ring seat and a micro-filtration membrane, the inner ring seat is arranged at the upper end of the inner wall of the tank body, the micro-filtration membrane is arranged at the upper end of the inner wall of the inner ring seat, a precipitation assembly is arranged in the tank body and used for precipitating liquid entering the tank body, a blow-off pipe is arranged at the bottom end of the tank body, and the blow-off pipe is connected with the inner ring seat. A sealing cover is arranged at an opening in the top end of the tank body, a self-cleaning assembly is arranged between the sealing cover and the micro-filtration membrane, and the self-cleaning assembly is used for continuously self-cleaning the micro-filtration membrane, so that the service life of the membrane is prolonged. The primary solid-liquid separation capacity is improved, meanwhile, the impact type self-cleaning assembly driven by the electromagnet is designed, the electromagnet is periodically controlled to be powered on and powered off, the sliding rod drives the hammer head to vibrate, impact is generated through spring resilience, a micro-filtration membrane is driven to conduct high-frequency vibration cleaning, and the membrane pollution and blocking phenomena are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of material recycling technology, and in particular to a multi-stage membrane separation gallium-lithium enrichment device. Background Technology

[0002] Gallium (Ga) and lithium (Li) are high-value rare metals widely used in the semiconductor, energy materials, and battery industries. Currently, membrane separation technology, with its advantages of high efficiency, energy saving, and environmental friendliness, is gradually becoming one of the key technologies for the enrichment and extraction of gallium and lithium.

[0003] Existing membrane separation systems mainly rely on membrane modules such as ultrafiltration, nanofiltration, and reverse osmosis for separation. However, membrane fouling is a serious problem during long-term operation. In particular, microfiltration membranes, which are at the forefront of the entire system, are easily clogged by impurities, affecting overall efficiency.

[0004] To address this problem, we propose a multi-stage membrane separation gallium-lithium enrichment device. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a multi-stage membrane separation gallium-lithium enrichment device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage membrane separation gallium-lithium enrichment device, comprising a tank, an inner ring seat, and a microfiltration membrane. The inner ring seat is provided at the upper end of the inner wall of the tank, and the microfiltration membrane is provided at the upper end of the inner wall of the inner ring seat. A sedimentation component is provided inside the tank for sedimenting the liquid entering the tank, and a drain pipe is provided at the bottom of the tank.

[0007] The top opening of the tank is provided with a cap, and a self-cleaning component is provided between the cap and the microfiltration membrane. The self-cleaning component is used to continuously self-clean the microfiltration membrane and extend the membrane's service life.

[0008] Preferably, the sedimentation assembly consists of a feed pipe, a central pipe, a support, a connecting frame, and a guide plate. The support is disposed on the inner wall of the inner ring seat, the central pipe is disposed on the support, the connecting frame is disposed on the central pipe, and the guide plate is disposed at the bottom end of the connecting frame, with the guide plate located directly below the bottom opening of the central pipe.

[0009] Preferably, one end of the feed pipe is located on the tank body, and the other end of the feed pipe is located inside the central pipe with its opening facing upwards.

[0010] Preferably, the self-cleaning assembly consists of a claw disc, a housing, a hammer head, a spring, a frame, a slide rod, and an electromagnet. The claw disc is disposed on the microfiltration membrane, the housing is disposed on the claw disc, the hammer head is slidably disposed within the housing, and one end of the slide rod is disposed on the hammer head and the other end slides through the housing.

[0011] Preferably, the spring is movably sleeved on the slide rod, with one end of the spring abutting against the hammer head and the other end of the spring abutting against the top of the inner wall of the housing.

[0012] Preferably, the frame is mounted on the cover, the electromagnet is mounted on the frame, and the slide bar is located directly below the electromagnet and is affected by magnetic attraction.

[0013] Preferably, the inner ring seat and the tank body form an overflow trough, and the overflow trough is provided with a discharge port.

[0014] Preferably, the lower end of the outer wall of the tank is provided with a support ring, and the lower surface of the support ring is provided with support legs at equal intervals.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In use, the multi-stage membrane separation gallium-lithium enrichment device of this utility model is connected to an external power source. The recyclable liquid containing gallium and lithium enters the inner wall of the tank through the sedimentation component. Under the action of the sedimentation component, suspended solids and impurities in the liquid are precipitated and fall to the bottom of the tank. The liquid after sedimentation overflows and passes through the microfiltration membrane. The microfiltration membrane further removes impurities from the liquid. The liquid after impurity removal overflows into the overflow tank and is finally discharged through the outlet. At the outlet, multiple sets of external membrane separation units are connected in series to concentrate the overflow liquid and increase the concentration of gallium and lithium. Since the microfiltration membrane is at the forefront of the entire multi-stage membrane separation structure, the operator only needs to control the self-cleaning component to work periodically to complete the self-cleaning operation of the microfiltration membrane.

[0017] When the sedimentation unit is working, the liquid enters the central tube through the feed pipe and then falls from the central tube. Under the action of the guide plate, the vertical downward water flow is changed to a horizontal direction. The suspended particles in the water gradually settle under the action of gravity. The sludge that settles into the tank is concentrated at the lowest point inside the tank. At this time, it is discharged through the drain pipe connected to the external sludge pump, while the water that has been settled overflows and passes through the microfiltration membrane.

[0018] When the self-cleaning component is working, the electromagnet is energized to generate magnetic force. Under the magnetic attraction, the sliding rod carries the hammer head upward. At this time, the hammer head compresses the spring and causes it to deform. When the hammer head rises to a certain height, the electromagnet is de-circuited, and the hammer head falls rapidly under the action of the spring to hammer the housing. By periodically controlling the electromagnet to turn on and off, the impact of the hammer head acts on the claw plate, causing the microfiltration membrane to vibrate, thereby cleaning the microfiltration membrane.

[0019] This invention employs a central tube and guide plate structure, which changes the flow of liquid from vertical to horizontal after it falls from the central tube, slowing down the flow rate, enhancing the sedimentation effect of suspended particles, and improving the initial solid-liquid separation capability. It also features an electromagnet-driven impact-type self-cleaning component. By periodically controlling the electromagnet to turn on and off, the slide rod drives the hammer to vibrate, and the spring rebound generates an impact, driving the microfiltration membrane to perform high-frequency vibration cleaning, effectively reducing membrane fouling and clogging. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 For the present utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0022] Figure 3 For the present utility model Figure 2 A schematic diagram of the cross-sectional structure;

[0023] Figure 4 This is a schematic diagram of the self-cleaning component structure of this utility model.

[0024] Figure label:

[0025] 1. Support leg; 2. Drain pipe; 3. Support ring; 4. Sedimentation assembly; 401. Feed pipe; 402. Central pipe; 403. Support; 404. Connecting frame; 405. Guide plate; 5. Tank body; 6. Cover; 7. Self-cleaning assembly; 701. Claw plate; 702. Shell; 703. Hammer; 704. Spring; 705. Frame; 706. Slide rod; 707. Electromagnet; 8. Inner ring seat; 9. Microfiltration membrane; 10. Discharge port. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] like Figures 1-4As shown, this utility model proposes a multi-stage membrane separation gallium-lithium enrichment device, including a tank 5, an inner ring seat 8, and a microfiltration membrane 9. The inner ring seat 8 is provided at the upper end of the inner wall of the tank 5, and the microfiltration membrane 9 is provided at the upper end of the inner wall of the inner ring seat 8. A sedimentation component 4 is provided inside the tank 5 to precipitate the liquid entering the tank 5. A drain pipe 2 is provided at the bottom of the tank 5. An overflow channel is formed between the inner ring seat 8 and the tank 5. A discharge port 10 is opened on the overflow channel and connected to an external power source. Recyclable liquid containing gallium and lithium enters the inner wall of the tank 5 through the sedimentation component 4. Under the action of the sedimentation component 4, suspended solids and impurities in the liquid are precipitated and fall to the bottom of the tank 5. The precipitated liquid overflows through the microfiltration membrane 9, which further removes impurities from the liquid. The liquid that has been purified overflows into the overflow channel and is finally discharged through the discharge port 10. Multiple sets of external membrane separation units are connected in series at the discharge port 10 to concentrate the overflowed liquid and increase the concentration of gallium and lithium.

[0029] The top opening of the tank 5 is provided with a cap 6. A self-cleaning component 7 is provided between the cap 6 and the microfiltration membrane 9. The self-cleaning component 7 is used to continuously self-clean the microfiltration membrane 9 and extend the membrane's service life. Since the microfiltration membrane 9 is at the forefront of the entire multi-stage membrane separation structure, the operator only needs to periodically control the operation of the self-cleaning component 7 to complete the self-cleaning operation of the microfiltration membrane 9.

[0030] Example 2

[0031] like Figures 1-4 As shown, the multi-stage membrane separation gallium-lithium enrichment device proposed in this utility model, compared with Embodiment 1, further includes: a precipitation component 4 composed of a feed pipe 401, a central pipe 402, a support 403, a connecting frame 404, and a guide plate 405. The support 403 is disposed on the inner wall of the inner ring seat 8, the central pipe 402 is disposed on the support 403, the connecting frame 404 is disposed on the central pipe 402, and the guide plate 405 is disposed at the bottom end of the connecting frame 404, with the guide plate 405 located directly below the bottom opening of the central pipe 402. One side of the feed pipe 401... One end is located on the tank body 5, and the other end of the feed pipe 401 is located inside the central pipe 402 with the opening facing upward. When the sedimentation component 4 is working, the liquid enters the central pipe 402 through the feed pipe 401 and then falls from the central pipe 402. Under the action of the guide plate 405, the vertical downward water flow is changed to a horizontal direction. The suspended particles in the water gradually settle under the action of gravity. The sludge that settles into the tank body 5 is concentrated at the lowest point inside the tank body 5. At this time, it is discharged through the sewage pipe 2 connected to the external sludge pump, while the water that has been settled overflows through the microfiltration membrane 9.

[0032] The self-cleaning assembly 7 comprises a claw disc 701, a housing 702, a hammer head 703, a spring 704, a frame 705, a slide rod 706, and an electromagnet 707. The claw disc 701 is mounted on the microfiltration membrane 9, the housing 702 is mounted on the claw disc 701, the hammer head 703 is slidably mounted inside the housing 702, one end of the slide rod 706 is mounted on the hammer head 703 and the other end slides through the housing 702, the spring 704 is movably sleeved on the slide rod 706, one end of the spring 704 abuts against the hammer head 703, and the other end abuts against the top of the inner wall of the housing 702, the frame 705 is mounted on the cover 6, and the electromagnet 707 is mounted on the frame 705. 5. The slide bar 706 is located directly below the electromagnet 707 and is affected by magnetic attraction. When the self-cleaning component 7 is working, the electromagnet 707 is energized to generate magnetic force. Under the action of magnetic attraction, the slide bar 706 carries the hammer head 703 upward. At this time, the hammer head 703 compresses the spring 704 to cause it to deform. When the hammer head 703 rises to a certain height, the electromagnet 707 is de-circuited. Then, the hammer head 703 falls rapidly under the action of the spring 704 to hammer the housing 702. By periodically controlling the electromagnet 707 to turn on and off, the impact of the hammer head 703 acts on the claw plate 701, causing the microfiltration membrane 9 to vibrate, thereby cleaning the microfiltration membrane 9.

[0033] The lower end of the outer wall of the tank body 5 is provided with a support ring 3, and the lower surface of the support ring 3 is provided with support legs 1 at equal intervals.

[0034] It should be noted that the electromagnet 707 structure is a mature existing technology, and its working principle and internal structure are known to those skilled in the art. This utility model only utilizes its function and does not improve its internal structure. Therefore, it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0035] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-stage membrane separation gallium-lithium enrichment device comprising a tank body (5), an inner ring seat (8) and a microfiltration membrane (9), characterized in that: The inner wall of the tank body (5) is provided with the inner ring seat (8), the inner wall of the inner ring seat (8) is provided with the microfiltration membrane (9), the inside of the tank body (5) is provided with a sedimentation assembly (4) for sedimentation of liquid entering the tank body (5), and the bottom end of the tank body (5) is provided with a blowdown pipe (2). The top opening of the tank body (5) is provided with a cover (6), and a self-cleaning assembly (7) is arranged between the cover (6) and the microfiltration membrane (9), which is used for continuous self-cleaning of the microfiltration membrane (9) and prolongs the service life of the membrane.

2. The multistage membrane separation gallium-lithium enrichment device according to claim 1, characterized in that: The sedimentation assembly (4) is composed of a feed pipe (401), a center pipe (402), a support (403), a connecting frame (404) and a flow guide plate (405), the support (403) is arranged on the inner wall of the inner ring seat (8), the center pipe (402) is arranged on the support (403), the connecting frame (404) is arranged on the center pipe (402), and the flow guide plate (405) is arranged at the bottom end of the connecting frame (404) and directly below the bottom opening of the center pipe (402).

3. The multistage membrane separation gallium-lithium enrichment device according to claim 2, characterized in that: One end of the feed pipe (401) is arranged on the tank body (5), and the other end of the feed pipe (401) is arranged in the center pipe (402) and opens upward.

4. The multistage membrane separation gallium-lithium enrichment device according to claim 1, characterized in that: The self-cleaning assembly (7) is composed of a claw disc (701), a shell (702), a hammer head (703), a spring (704), a rack (705), a slide rod (706) and an electromagnet (707), the claw disc (701) is arranged on the microfiltration membrane (9), the shell (702) is arranged on the claw disc (701), the hammer head (703) is slidably arranged in the shell (702), one end of the slide rod (706) is arranged on the hammer head (703) and the other end of the slide rod (706) slidably penetrates the shell (702).

5. The multistage membrane separation gallium-lithium enrichment device according to claim 4, characterized in that: The spring (704) is movably sleeved on the slide rod (706), one end of the spring (704) abuts against the hammer head (703), and the other end of the spring (704) abuts against the top end of the inner wall of the shell (702).

6. The multistage membrane separation gallium-lithium enrichment device according to claim 4, characterized in that: The rack (705) is arranged on the cover (6), the electromagnet (707) is arranged on the rack (705), and the slide rod (706) is directly below the electromagnet (707) and is affected by magnetic attraction.

7. The multistage membrane separation gallium-lithium enrichment device according to claim 1, characterized in that: The inner ring seat (8) and the tank body (5) form an overflow tank, and a discharge port (10) is formed in the overflow tank.

8. The multistage membrane separation gallium-lithium enrichment device according to claim 1, characterized in that: The outer wall of the tank body (5) is provided with a support ring (3), and the lower surface of the support ring (3) is provided with support legs (1) at equal intervals.

Images