Lithium residue separation device

Abstract

The utility model relates to a lithium residue separation device, including screening outer tube and setting up in the screening inner tube inside screening inner tube lateral wall and bottom wall are provided with sieve hole, be provided with agitating mechanism in screening inner tube, the bottom of screening outer tube is provided with the discharge gate, and the discharge gate is connected with the inclined material conveying spare, the lower extreme of material conveying spare links with the discharge gate, be provided with a plurality of filter holes on material conveying spare, and the below of material conveying spare is provided with the water receiving groove. The lithium residue slagging water is passed into the screening inner tube, and the agitating mechanism stirs the slagging water, and the small particle lithium residue in the slagging water passes the sieve hole of screening inner tube with water and enters the screening outer tube below, then passes the discharge gate and enters the material conveying spare, and the material conveying spare can transmit the small particle lithium residue to the next station, and the moisture in the slagging water falls into the water receiving groove through the filter hole on the material conveying spare, realizes the screening of moisture.

Description

Technical Field

[0001] This utility model belongs to the field of screening technology, and in particular to a lithium slag separation device. Background Technology

[0002] With the development of lithium batteries, lithium slag is generated during the production process. The treatment of this lithium slag is costly and economically inefficient. To address this issue more economically, lithium slag is currently commonly used in the preparation of concrete, where it is being processed as a building material.

[0003] Lithium slag fresh from a rotary kiln or production line is extremely hot and highly alkaline. Direct dumping or landfilling would pollute the environment. Therefore, lithium slag is usually mixed with water for a slag-smelting treatment, resulting in slag-smelting water. This treatment rapidly lowers the temperature of the lithium slag, causing soluble alkaline substances to dissolve in the water and reducing the pH value. The solids content in the slag-smelting water is typically between 10% and 30%, making it easy to transport via pumps and pipelines. Before using the slag-smelting water in concrete preparation, excessively large lithium slag particles need to be removed, and the water filtered out. Currently, there is no dedicated device for separating lithium slag slag-smelting water. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lithium slag separation device that can remove lithium slag with larger particle size from the slag water and filter out water at the same time.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: a lithium slag separation device, including a screening outer cylinder and a screening inner cylinder arranged inside the screening outer cylinder. The screening inner cylinder is provided with screen holes on its side wall and bottom wall. A stirring mechanism is provided inside the screening inner cylinder. A discharge port is provided at the bottom of the screening outer cylinder. An inclined conveying component is connected to the discharge port. The lower end of the conveying component is connected to the discharge port. Multiple water filtering holes are provided on the conveying component. A water receiving tank is provided below the conveying component.

[0006] Furthermore, the inner wall of the screening cylinder is provided with a notch extending vertically from its upper end to its lower end, and the side wall of the notch is provided with a vertical slot; a collection trough is provided in the notch, the horizontal cross-section of the collection trough is rectangular, and the opening side of the collection trough faces the inside of the screening cylinder, and the side wall and bottom wall of the collection trough are provided with screen holes; the outer wall of the collection trough is provided with a plug-in plate, and the plug-in plate is inserted into the slot.

[0007] Furthermore, the lower end of the collection trough is connected to a collection chamber, which is located below the inner cylinder of the screening cylinder, and the side walls and bottom walls of the collection chamber are provided with screen holes.

[0008] Furthermore, multiple positioning sleeves are fixedly installed on the outer wall of the inner screening cylinder. The multiple positioning sleeves are all horizontally arranged and evenly distributed around the inner screening cylinder. Multiple detachable positioning rods are installed on the outer screening cylinder. Each positioning rod extends into a positioning sleeve and slides with the positioning sleeve. A spring is installed between the positioning sleeve and the outer screening cylinder.

[0009] Furthermore, the conveying component is a spiral conveying pipe.

[0010] Furthermore, the bottom of the screening outer cylinder is a frustum shape with an inner diameter decreasing from top to bottom.

[0011] Furthermore, a mounting bracket is provided on the top of the screening outer cylinder, and the stirring mechanism is mounted on the mounting bracket.

[0012] Furthermore, the stirring mechanism includes a motor, which is connected to a vertical rotating shaft, and a plurality of stirring blades are arranged on the rotating shaft.

[0013] Furthermore, the stirring blade is rectangular.

[0014] The beneficial effects of this invention are as follows: Lithium slag smelting water is introduced into the inner screening cylinder from the upper port. A stirring mechanism agitates the smelting water, driving its rapid flow. Small lithium slag particles in the smelting water pass through the screen holes of the inner screening cylinder and enter the lower outer screening cylinder. Then, they pass through the discharge port into the conveying component, which transports the small lithium slag particles to the next station. Simultaneously, water in the smelting water falls into the water receiving tank through the filter holes on the conveying component, achieving water removal. Larger lithium slag particles remain in the inner screening cylinder and can be cleaned periodically. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front sectional view of this utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the AA section;

[0017] Reference numerals: 1—Outer screening cylinder; 12—Inner screening cylinder; 13—Agitating mechanism; 131—Motor; 132—Rotating shaft; 133—Agitating blade; 14—Discharge port; 15—Conveying component; 16—Water receiving trough; 17—Collection trough; 18—Plug-in plate; 19—Collection chamber; 110—Positioning sleeve; 111—Positioning rod; 112—Spring; 113—Mounting bracket. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] The lithium slag separation device of this utility model, such as Figures 1 to 2As shown, the system includes an outer screening cylinder 11 and an inner screening cylinder 12 disposed inside the outer screening cylinder 11. Both the outer screening cylinder 11 and the inner screening cylinder 12 are circular metal cylinders, and are coaxially arranged. The inner screening cylinder 12 can be suspended within the outer screening cylinder 11. There is a gap between the side wall of the inner screening cylinder 12 and the side wall of the outer screening cylinder 11, and there is also a gap between the bottom wall of the inner screening cylinder 12 and the bottom wall of the outer screening cylinder 11. The upper end of the inner screening cylinder 12 has a lithium slag inlet for introducing lithium slag slag solution. The side wall and bottom wall of the inner screening cylinder 12 are provided with screen holes. The diameter of the screen holes is determined according to the actual required lithium slag particle size. Lithium slag particles larger than the screen hole diameter cannot pass through the screen holes. A stirring mechanism 13 is provided inside the inner screening cylinder 12 to stir the lithium slag slag solution and improve screening efficiency. The bottom of the screening outer cylinder 11 is provided with a discharge port 14, which is used to discharge the small lithium slag particles and water screened out. The discharge port 14 is connected to an inclined conveyor 15, which is used to transport the small lithium slag particles obtained from screening to the next station. The lower end of the conveyor 15 is connected to the discharge port 14. The conveyor 15 is provided with multiple water filtering holes, which can filter out water to obtain solid lithium slag. A water receiving tank 16 is provided below the conveyor 15. The water receiving tank 16 is a rectangular tank that can collect the filtered water.

[0020] The working process of this utility model is as follows: When lithium slag slag water is transported from the lithium battery manufacturing plant to the concrete manufacturing plant, a slurry pump continuously feeds the slag slag water into the inner screening cylinder 12, maintaining a stable flow rate. Simultaneously, the stirring mechanism 13 is activated to agitate the slag water, promoting lithium slag movement and improving screening efficiency. Large lithium slag particles remain in the inner screening cylinder 12, while small particles pass through the screen holes on the bottom and side walls of the inner screening cylinder 12 with the water, entering the outer screening cylinder 11 below the inner screening cylinder 12. Then, they are discharged through the discharge port 14 to the conveying component 15. The conveying component 15 transports the solid lithium slag to the next station, while the liquid water flows downwards into the water receiving tank 16 through the filter holes on the conveying component 15, achieving solid-liquid separation. Screening can be paused periodically to clean the large lithium slag particles in the inner screening cylinder 12 before resuming screening. Large lithium slag particles can be crushed and then used in concrete preparation.

[0021] To facilitate the removal of large lithium slag particles from the screening inner cylinder 12, a notch is provided on the side wall of the screening inner cylinder 12, extending vertically from its upper end to its lower end. A vertical slot is provided on the side wall of the notch. A collection trough 17 is provided inside the notch. The horizontal cross-section of the collection trough 17 is rectangular, and the opening side of the collection trough 17 faces the inside of the screening inner cylinder 12. Screen holes are provided on both the side wall and the bottom wall of the collection trough 17. An insertion plate 18 is provided on the outer wall of the collection trough 17, and the insertion plate 18 is inserted into the slot.

[0022] The collection trough 17 is used to collect large lithium slag particles. Specifically, when the stirring mechanism 13 stirs the slag-melting water, the slag-melting water rotates and is subjected to centrifugal force, thereby pushing the slag-melting water towards the edge of the inner screening cylinder 12. The lithium slag in the slag-melting water can then enter the collection trough 17. Small lithium slag particles in the collection trough 17, under the impact of the water flow, fall downwards into the outer screening cylinder 11 through the screen holes on the bottom and side walls of the collection trough 17. After the equipment has been running for a period of time, the collection trough 17 can be removed by simply pulling it upwards as a whole, and the lithium slag in the collection trough 17 can be cleaned.

[0023] To increase the amount of large lithium slag particles collected and prevent them from re-entering the inner screening cylinder 12, a collection chamber 19 is connected to the lower end of the collection trough 17. The collection chamber 19 is located below the inner screening cylinder 12, and its side walls and bottom walls are equipped with screen holes. The upper end of the collection chamber 19 is connected to the lower end of the collection trough 17. After entering the collection trough 17, the lithium slag falls downward into the collection chamber 19. Small lithium slag particles fall downward into the outer screening cylinder 11 through the screen holes on the side walls and bottom walls of the collection chamber 19, while large lithium slag particles remain in the collection chamber 19 and do not return to the inner screening cylinder 12.

[0024] To ensure thorough separation of small particles in the collection chamber 19, four positioning sleeves 110 are fixedly installed on the outer wall of the inner screening cylinder 12. All four positioning sleeves 110 are horizontally positioned and are designated as the first, second, third, and fourth positioning sleeves. The first and second positioning sleeves are coaxial, as are the third and fourth positioning sleeves, with the first positioning sleeve parallel to the third. Four detachable positioning rods 111 are installed on the outer screening cylinder 11. These rods are connected to the outer screening cylinder 11 via screws. Each positioning rod 111 extends into a positioning sleeve 110 and slides within it. A spring 112 is installed between the positioning sleeve 110 and the outer screening cylinder 11.

[0025] After the screening inner cylinder 12 is installed in this way, it can vibrate along the axial direction of the positioning sleeve 110. When the stirring mechanism 13 stirs the slag water, it drives the slag water to rotate. The slag water generates centrifugal force and impacts the screening inner cylinder 12, causing the screening inner cylinder 12 to vibrate. The screening inner cylinder 12 then drives the collection chamber 19 to vibrate, which promotes the full screening of small lithium slag particles in the collection chamber 19.

[0026] In this utility model, the material conveying component 15 is a spiral conveying pipe, and the spiral conveying pipe can be made using existing technology.

[0027] The bottom of the screening outer cylinder 11 is a frustum shape with an inner diameter decreasing from top to bottom, that is, the bottom of the screening outer cylinder 11 is an inclined surface, and the lithium slag can slide quickly down the inclined surface to the discharge port 14.

[0028] To facilitate the installation of the mixing mechanism 13, a mounting bracket 113 is provided on the top of the screening outer cylinder 11, and the mixing mechanism 13 is installed on the mounting bracket 113.

[0029] The stirring mechanism 13 of this utility model includes a motor 131, which is connected to a vertical rotating shaft 132. A plurality of stirring blades 133 are arranged on the rotating shaft 132. The stirring blades 133 can be rectangular blades or other conventionally shaped blades.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lithium slag separation device, characterized in that: The device includes an outer screening cylinder (11) and an inner screening cylinder (12) disposed inside the outer screening cylinder (11). The inner screening cylinder (12) has screen holes on its side walls and bottom walls. A stirring mechanism (13) is disposed inside the inner screening cylinder (12). A discharge port (14) is disposed at the bottom of the outer screening cylinder (11). An inclined conveying component (15) is connected to the discharge port (14). The lower end of the conveying component (15) is connected to the discharge port (14). The conveying component (15) has multiple water filtering holes. A water receiving trough (16) is disposed below the conveying component (15).

2. The lithium slag separation device as described in claim 1, characterized in that: The screening inner cylinder (12) has a notch extending vertically from its upper end to its lower end on its side wall. The side wall of the notch has a vertical slot. A collection trough (17) is provided inside the notch. The horizontal cross-section of the collection trough (17) is rectangular, and the opening side of the collection trough (17) faces the inside of the screening inner cylinder (12). The side wall and bottom wall of the collection trough (17) are provided with screen holes. The outer wall of the collection trough (17) is provided with a plug-in plate (18), which is plugged into the slot.

3. The lithium slag separation device as described in claim 2, characterized in that: The lower end of the collection trough (17) is connected to the collection chamber (19), which is located below the screening inner cylinder (12), and the side wall and bottom wall of the collection chamber (19) are provided with screen holes.

4. The lithium slag separation device as described in claim 3, characterized in that: Four positioning sleeves (110) are fixedly installed on the outer wall of the inner screening cylinder (12). All four positioning sleeves (110) are horizontally arranged. Multiple detachable positioning rods (111) are installed on the outer screening cylinder (11). Each positioning rod (111) extends into a positioning sleeve (110) and slides with the positioning sleeve (110). A spring (112) is installed between the positioning sleeve (110) and the outer screening cylinder (11).

5. The lithium slag separation device as described in claim 1, characterized in that: The material conveying component (15) is a spiral conveying pipe.

6. The lithium slag separation device as described in claim 1, characterized in that: The bottom of the screening outer cylinder (11) is a frustum shape with an inner diameter decreasing from top to bottom.

7. The lithium slag separation device as described in claim 1, characterized in that: The top of the screening outer cylinder (11) is provided with a mounting bracket (113), and the stirring mechanism (13) is mounted on the mounting bracket (113).

8. The lithium slag separation device as described in claim 1, characterized in that: The stirring mechanism (13) includes a motor (131), which is connected to a vertical rotating shaft (132), and a plurality of stirring blades (133) are provided on the rotating shaft (132).

9. The lithium slag separation device as described in claim 8, characterized in that: The stirring plate (133) is rectangular.

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