A high-pressure granulation forming device for lithium adsorbent

Abstract

The utility model discloses a kind of lithium adsorbent high-pressure particle spraying forming devices, including forming installation box, the inside fixed mounting of the middle part of forming installation box is equipped with transmission motor, the output end of transmission motor is equipped with gear box, the side of gear box is equipped with gear metering pump, the input and output of gear metering pump are equipped with stainless steel pipe, the bottom end of one of the stainless steel pipe is located below gear metering pump and is equipped with nozzle, the both ends of gear box are respectively equipped with first transmission shaft and second transmission shaft, the outside fixed mounting of first transmission shaft is equipped with multiple spiral vanes, one screen disc is mounted between every adjacent two spiral vanes, the outside of multiple screen discs is equipped with mounting ring. The utility model is formed by high-pressure particle spraying to lithium adsorbent, can effectively keep the uniformity degree of forming particle size, avoid mutual adhesion between forming particles, and forming efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of lithium adsorbent processing technology, specifically to a high-pressure granulation device for lithium adsorbents. Background Technology

[0002] Lithium adsorbents are substances that can absorb lithium ions. They can extract lithium ions from water, soil, and minerals, and then, through a series of chemical reactions and processing steps, obtain high-purity lithium for use in the manufacture of batteries and other products. They have a wide range of applications in the battery industry and other fields. In the lithium resource extraction process, the particle morphology of lithium adsorbents, such as particle size uniformity, surface density, and high porosity, directly affects their adsorption capacity, adsorption rate, and recycling performance.

[0003] Existing common lithium adsorbent molding processes mostly employ high-pressure extrusion followed by cutting or crushing. Since the raw material for lithium adsorbents is in powder form, the method of extrusion followed by cutting or crushing easily leads to large differences in the particle size of lithium adsorbents. The cutting or crushing process can also destroy the complete encapsulation structure of the binder on the particles, causing microcracks inside the particles. At the same time, extrusion molding can easily cause particles to stick together. Therefore, this method does not meet the current requirements. To address this, we propose a high-pressure spray granulation device for lithium adsorbents. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure granulation device for lithium adsorbents, in order to solve the problem mentioned in the background art that the existing commonly used lithium adsorbent molding process mostly adopts high-pressure extrusion strips followed by cutting or crushing. Since the lithium adsorbent raw material is in powder form, the method of extruding strips followed by cutting or crushing easily leads to large differences in the particle size of lithium adsorbents. The cutting or crushing process will destroy the complete coating structure of the binder on the particles, causing microcracks inside the particles. At the same time, extrusion molding easily causes the particles to stick together.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure spray granulation device for lithium adsorbent, comprising a molding and mounting box, a drive motor fixedly mounted on the inner side of the middle of the molding and mounting box, a gearbox mounted on the output end of the drive motor, a gear metering pump mounted on one side of the gearbox, stainless steel pipes mounted on both the input and output ends of the gear metering pump, a nozzle mounted on the bottom end of one of the stainless steel pipes below the gear metering pump, a first drive shaft and a second drive shaft respectively mounted on both ends of the gearbox, multiple helical blades fixedly mounted on the outer side of the first drive shaft, a sieve disc mounted between each pair of adjacent helical blades, mounting rings mounted on the outer side of each of the multiple sieve discs, a discharge sleeve plate fixedly mounted on the lower end face of each sieve disc, and a molding separation tank fixedly mounted on the outer side of the multiple mounting rings.

[0006] Preferably, a door is rotatably connected to the front end of the molding and mounting box, a mixing storage tank is fixedly installed on the inner side of the upper end of the molding and mounting box, a sealing cover is fixedly installed on the upper end of the mixing storage tank, and a stirring rack is rotatably connected to the inner side of the mixing storage tank.

[0007] Preferably, the plurality of mounting rings are arranged linearly along the axis of the first drive shaft, the molding separation tank and the plurality of screens are fixedly connected by the mounting rings, the upper ends of the plurality of discharge sleeves penetrate through the molding mounting box and are inserted into the inner side of the molding separation tank, and the upper end surface of the discharge sleeve coincides with the upper end surface of the screen.

[0008] Preferably, the outer surface of the sieve disc is provided with a plurality of sieve holes, the size of the sieve holes on the outer surface of the plurality of sieve discs decreasing sequentially from top to bottom, and the inner side of the forming separation tank is filled with cold water.

[0009] Preferably, the gearbox has a gear set inside, the output end of the drive motor is connected to the first drive shaft and the second drive shaft through the gear set, the gearbox and the gear metering pump are both fixedly connected to the molding and mounting box, the first drive shaft and the second drive shaft are coaxial, the second drive shaft is located directly above the first drive shaft, and the upper end of the second drive shaft passes through the mixing storage tank and is fixedly connected to the stirring frame.

[0010] Preferably, the gear metering pump is connected to the mixing storage tank and the nozzle through a stainless steel pipe, the upper end of which is fixedly connected to the mixing storage tank, and the first drive shaft rotates counterclockwise.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, the transmission motor synchronously drives the first and second transmission shafts to rotate through the gear set in the gearbox. The second transmission shaft then drives the powdered lithium adsorbent and binder solution to be stirred inside the mixing storage tank through the stirring frame to form a mixed viscous material. The upper end of the mixing storage tank is sealed in real time by the sealing cover, thereby effectively preventing the evaporation of solvent in the mixed viscous material. The gear metering pump draws the mixed viscous material through a stainless steel pipe and sprays it through the nozzle. The first transmission shaft rotates counterclockwise, and the first transmission shaft drives the cold water in the forming separation tank to swirl counterclockwise through multiple spiral blades. At this time, the nozzle continuously sprays the mixed viscous material along the tangential direction of the cold water swirl, thereby preventing the mixed viscous material from being broken by the impact of the water flow.

[0013] 2. This utility model rapidly cools and solidifies mixed viscous materials with cold water to form uniform granules. Multiple sieve discs with decreasing mesh sizes are installed sequentially from top to bottom on the inner side of the forming and separating tank. The granular mixed viscous materials are then separated in multiple stages by the water flow through the multiple sieve discs. The multiple sieve discs can classify the mixed viscous materials according to particle size through the discharge sleeve, effectively improving the uniformity of particle size and preventing particles from sticking together. This also results in higher efficiency for the spray forming of powdered lithium adsorbents. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the entire utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the mixing storage tank of this utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the sieve disc of this utility model.

[0018] In the diagram: 1. Molding installation box; 2. Box door; 3. Discharge sleeve; 4. Mixing storage tank; 5. Sealing cover; 6. Screen plate; 7. Spiral blade; 8. Drive motor; 9. Gearbox; 10. First drive shaft; 11. Second drive shaft; 12. Mixing rack; 13. Mounting ring; 14. Gear metering pump; 15. Stainless steel pipe; 16. Nozzle; 17. Molding separation tank. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] The drive motor 8 (model GV50-3.7KW-60-S) and gear metering pump 14 (model QXP42-020R) mentioned in this utility model can be obtained from the market or through private customization.

[0021] Please see Figure 1 and Figure 2This utility model provides an embodiment of a high-pressure spray granulation device for lithium adsorbent, comprising a molding and mounting box 1. A drive motor 8 is fixedly installed on the inner side of the middle part of the molding and mounting box 1. A gearbox 9 is installed at the output end of the drive motor 8. A gear metering pump 14 is installed on one side of the gearbox 9. A first drive shaft 10 and a second drive shaft 11 are respectively installed at both ends of the gearbox 9. A box door 2 is rotatably connected to the front end of the molding and mounting box 1. A mixing storage tank 4 is fixedly installed on the inner side of the upper end of the molding and mounting box 1. A sealing cover 5 is fixedly installed on the upper end of the mixing storage tank 4. The sealing cover 5 seals the upper end of the mixing storage tank 4 in real time, thereby effectively preventing the evaporation of solvent in the mixed viscous material.

[0022] Please see Figure 2 and Figure 3 A stirring frame 12 is rotatably connected to the inner side of the mixing storage tank 4. A gear set is provided on the inner side of the gearbox 9. The output end of the drive motor 8 is connected to the first drive shaft 10 and the second drive shaft 11 through the gear set. The gearbox 9 and the gear metering pump 14 are both fixedly connected to the molding and mounting box 1. The first drive shaft 10 and the second drive shaft 11 are coaxial. The second drive shaft 11 is located directly above the first drive shaft 10. The upper end of the second drive shaft 11 passes through the mixing storage tank 4 and is fixedly connected to the stirring frame 12. The second drive shaft 11 drives the powdered lithium adsorbent and binder solution to be stirred inside the mixing storage tank 4 through the stirring frame 12 to form a mixed viscous material.

[0023] Please see Figures 2 to 4 Stainless steel pipes 15 are installed at both the input and output ends of the gear metering pump 14. A nozzle 16 is installed at the bottom end of one of the stainless steel pipes 15 below the gear metering pump 14. The gear metering pump 14, the mixing storage tank 4, and the nozzle 16 are all connected through the stainless steel pipes 15. The upper end of the stainless steel pipes 15 is fixedly connected to the mixing storage tank 4. The rotation direction of the first drive shaft 10 is counterclockwise. The first drive shaft 10 drives the cold water in the forming separation tank 17 to swirl counterclockwise through multiple spiral blades 7. At this time, the nozzle 16 continuously sprays the mixed viscous material along the tangential direction of the cold water swirl, thereby preventing the mixed viscous material from being broken by the impact of the water flow.

[0024] Multiple spiral blades 7 are fixedly installed on the outer side of the first drive shaft 10. A screen plate 6 is installed between each pair of adjacent spiral blades 7. An installation ring 13 is installed on the outer side of each screen plate 6. A discharge sleeve plate 3 is fixedly installed on the lower end face of each screen plate 6. A forming separation tank 17 is fixedly installed on the outer side of the multiple installation rings 13. The inner side of the forming separation tank 17 is filled with cold water. The mixed viscous material is rapidly cooled and solidified by the cold water to form uniform granules.

[0025] Please see Figure 4Multiple mounting rings 13 are arranged linearly along the axis of the first drive shaft 10. The forming separation tank 17 and multiple screens 6 are fixedly connected by mounting rings 13. The upper ends of multiple discharge sleeves 3 pass through the forming installation box 1 and are inserted into the inner side of the forming separation tank 17. The upper end face of the discharge sleeve 3 coincides with the upper end face of the screen 6. The outer surface of the screen 6 is provided with multiple screen holes. The size of the screen holes on the outer surface of the multiple screens 6 decreases from top to bottom. The granular mixed viscous material passes through multiple screens 6 in sequence under the action of water flow for multi-stage separation. Then, the multiple screens 6 can classify the mixed viscous material according to the particle size through the discharge sleeves 3, effectively improving the uniformity of particle size.

[0026] In summary, the powdered lithium adsorbent and binder solution are injected into the inner side of the mixing storage tank 4 in a certain proportion, and cold water is injected into the molding separation tank 17. The power is turned on and the drive motor 8 is started. Under the support of the molding mounting box 1, the drive motor 8 drives the first drive shaft 10 and the second drive shaft 11 to rotate synchronously through the gear set in the gearbox 9. Then, the second drive shaft 11 drives the powdered lithium adsorbent and binder solution to be stirred inside the mixing storage tank 4 through the stirring frame 12 to form a mixed viscous material. The upper end of the mixing storage tank 4 is sealed in real time by the sealing cover 5, thereby effectively preventing the evaporation of solvent in the mixed viscous material.

[0027] Start the gear metering pump 14, which, under the support of the molding installation box 1, draws the mixed viscous material through the stainless steel pipe 15 and sprays it through the nozzle 16. The first drive shaft 10 rotates counterclockwise, and the first drive shaft 10 drives the cold water in the molding separation tank 17 to swirl counterclockwise through multiple spiral blades 7. At this time, the nozzle 16 continuously sprays the mixed viscous material along the tangential direction of the cold water swirl, thereby preventing the mixed viscous material from being broken by the impact of the water flow. The mixed viscous material is rapidly cooled and solidified by the cold water and forms uniform granules.

[0028] Multiple screens 6 with decreasing screen aperture sizes are installed sequentially from top to bottom on the inner side of the forming and separating tank 17. The granular mixed viscous material passes through the multiple screens 6 in sequence under the action of water flow for multi-stage separation. The multiple screens 6 can then classify the mixed viscous material according to particle size through the discharge sleeve 3, effectively improving the uniformity of particle size and preventing particles from sticking together. This also results in higher efficiency for the spray forming of powdered lithium adsorbent.

[0029] 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 high-pressure granulation device for lithium adsorbent, comprising a molding and mounting box (1), characterized in that: A drive motor (8) is fixedly installed on the inner side of the middle part of the molding installation box (1). A gearbox (9) is installed at the output end of the drive motor (8). A gear metering pump (14) is installed on one side of the gearbox (9). Stainless steel pipes (15) are installed at both the input and output ends of the gear metering pump (14). A nozzle (16) is installed at the bottom end of one of the stainless steel pipes (15) below the gear metering pump (14). A first drive shaft (10) and a second drive shaft (11) are installed at both ends of the gearbox (9). Multiple spiral blades (7) are fixedly installed on the outer side of the first drive shaft (10). A screen plate (6) is installed between each two adjacent spiral blades (7). An installation ring (13) is installed on the outer side of each screen plate (6). A discharge sleeve plate (3) is fixedly installed on the lower end face of each screen plate (6). A molding separation tank (17) is fixedly installed on the outer side of each installation ring (13).

2. The lithium adsorbent high-pressure granulation device according to claim 1, characterized in that: The front end of the molding installation box (1) is rotatably connected to a box door (2), and a mixing storage tank (4) is fixedly installed on the inner side of the upper end of the molding installation box (1). A sealing cover (5) is fixedly installed on the upper end of the mixing storage tank (4), and a stirring rack (12) is rotatably connected to the inner side of the mixing storage tank (4).

3. The lithium adsorbent high-pressure granulation device according to claim 2, characterized in that: Multiple mounting rings (13) are arranged linearly along the axis of the first drive shaft (10). The molding separation tank (17) and multiple screens (6) are fixedly connected by mounting rings (13). The upper ends of multiple discharge sleeves (3) penetrate through the molding mounting box (1) and are inserted into the inner side of the molding separation tank (17). The upper end face of the discharge sleeve (3) coincides with the upper end face of the screen (6).

4. The lithium adsorbent high-pressure granulation device according to claim 3, characterized in that: The outer surface of the sieve disc (6) is provided with multiple sieve holes, and the size of the sieve holes on the outer surface of the multiple sieve discs (6) decreases from top to bottom. The inner side of the forming separation tank (17) is filled with cold water.

5. The lithium adsorbent high-pressure granulation device according to claim 4, characterized in that: The gearbox (9) has a gear set inside. The output end of the drive motor (8) is connected to the first drive shaft (10) and the second drive shaft (11) through the gear set. The gearbox (9) and the gear metering pump (14) are fixedly connected to the molding and mounting box (1). The first drive shaft (10) and the second drive shaft (11) are coaxial. The second drive shaft (11) is located directly above the first drive shaft (10). The upper end of the second drive shaft (11) passes through the mixing storage tank (4) and is fixedly connected to the stirring frame (12).

6. The lithium adsorbent high-pressure granulation device according to claim 5, characterized in that: The gear metering pump (14) is connected to the mixing storage tank (4) and the nozzle (16) through a stainless steel pipe (15). The upper end of the stainless steel pipe (15) is fixedly connected to the mixing storage tank (4), and the first drive shaft (10) rotates counterclockwise.

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