A cyclone separator for drying lithium carbonate
By designing a conical disc and limiting rod inside the tank in conjunction with a rotating shaft, large lithium carbonate particles are screened using centrifugal force and friction, and smoke and dust are drawn out by a fan. This solves the problems of poor screening effect and smoke and dust leakage in existing technologies, and achieves efficient lithium carbonate separation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN RUIKEMEI NEW ENERGY CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
In the operation of existing hydrocyclones for lithium carbonate drying, large lithium carbonate particles tend to fall rapidly due to their own gravity, resulting in insufficient centrifugal force and reduced screening effect. At the same time, the powdery dust and leakage are serious problems.
A hydrocyclone separator comprising a tank, a separation cylinder, a conical disc, and a rotating shaft was designed. The separator utilizes the rotation of the conical disc and the cooperation of a limiting rod to screen large lithium carbonate particles through centrifugal force and friction, and uses a fan to extract smoke and dust, thus preventing smoke and dust from mixing in and leaking out.
This improved the screening effect of large-particle lithium carbonate, effectively separated large particles from dust, reduced dust entrainment and leakage, and increased screening efficiency.
Smart Images
Figure CN224542359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium carbonate processing technology, specifically to a hydrocyclone separator for drying lithium carbonate. Background Technology
[0002] Lithium carbonate is an important inorganic compound, mainly used as the core raw material for lithium battery cathode materials. It also has wide applications in medicine, materials science and other fields. In the production and processing of lithium carbonate, after drying, lithium carbonate needs to be screened using a hydrocyclone separator. The hydrocyclone separator can first obtain large-particle lithium carbonate, and the remaining powdery lithium carbonate dust is then processed by a bag filter dust collector before being processed.
[0003] Existing hydrocyclones for lithium carbonate drying involve directly feeding lithium carbonate into the tank and then using the centrifugal force generated by the cyclone to screen large lithium carbonate particles. However, by directly feeding lithium carbonate, large lithium carbonate particles will accelerate their descent under their own gravity, which can lead to insufficient centrifugal force on the large lithium carbonate particles, reducing the screening effect. Furthermore, when the large lithium carbonate particles are discharged downwards, the impact will still generate powdery dust, which cannot be effectively drawn back in, resulting in dust inclusion in the large lithium carbonate particles and dust leakage. Utility Model Content
[0004] The purpose of this invention is to address the problem that large lithium carbonate particles tend to fall rapidly under their own gravity, which can lead to insufficient centrifugal force and reduced screening efficiency. Furthermore, the impact of large lithium carbonate particles during downward discharge can still generate powdery dust, preventing effective back-absorption and resulting in dust inclusion and leakage. This invention provides a hydrocyclone separator for drying lithium carbonate.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: A hydrocyclone separator for drying lithium carbonate includes a tank body. A separation cylinder is fixedly installed in the center of the tank body. A gearbox is fixedly installed in the center of the lower part of the separation cylinder. A fan is driven and connected to the bottom of the gearbox. A rotating shaft is rotatably connected to the center of the tank body and extends downward into the interior of the separation cylinder. The bottom of the rotating shaft is driven and connected to the gearbox. A conical disc is rotatably connected to the top opening of the separation cylinder. Spiral strips are uniformly fixedly connected to the inner side of the top of the conical disc. A hole is opened in the center of the top of the conical disc.
[0006] Furthermore, the separator is fixedly installed in the center of the tank body by a support rod, so that there is a gap between the inner wall of the tank body and the outer wall of the separator, allowing large lithium carbonate particles that are screened outward by centrifugal force to fall down and be collected through the gap between the inner wall of the tank body and the outer wall of the separator.
[0007] Furthermore, the rotating shaft passes through the center of the conical disk, and the conical disk is slidably connected to the outside of the rotating shaft at upper and lower limits. The conical disk is connected to the outer wall of the rotating shaft at a limit rolling connection, so that while the rotating shaft can drive the conical disk to rotate, the conical disk can also move up and down relative to the rotating shaft.
[0008] Furthermore, the top of the conical disk is a conical groove with a downward groove, and the top diameter of the conical disk is larger than the opening diameter of the top of the separation cylinder, so that the conical disk can block the opening at the top of the separation cylinder.
[0009] Furthermore, a limiting rod is uniformly fixedly installed on the outer periphery of the middle part of the conical disk, and an annular groove is opened on the inner side of the top of the separating cylinder. The bottom of the annular groove has a uniformly upward protrusion. One end of the limiting rod is rotatably connected to a roller, and the roller extends outward into the interior of the annular groove. This allows the conical disk to intermittently bounce upward when the conical disk drives the limiting rod to rotate in the annular groove, thanks to the cooperation between the roller and the protrusion at the bottom of the annular groove.
[0010] Furthermore, a motor is fixedly installed at the center of the top of the tank, and the motor is connected to the rotating shaft for transmission, thereby enabling the rotating shaft to rotate via the motor.
[0011] Furthermore, a feed pipe is fixedly installed on the left side of the top of the tank, and a smoke exhaust pipe is fixedly installed on the right side of the top of the tank. The opening inside the feed pipe extends inward to the top of the conical disk, and the smoke exhaust pipe is located above the feed pipe. This allows the dried lithium carbonate to pass through the inside of the tank via the feed pipe and fall above the conical disk. At the same time, the upward-blown dust can be collected through the smoke exhaust pipe and transported to the bag filter for further processing.
[0012] The beneficial effects of this utility model are as follows: This invention, through the design of a conical disc, allows for the initial holding of lithium carbonate. After the conical disc rotates, the combined action of centrifugal force and friction enables the screening of large lithium carbonate particles, improving the screening effect. Simultaneously, the cooperation between the limiting rod and the annular groove allows the conical disc to vibrate up and down, further facilitating the separation of large lithium carbonate particles from lithium carbonate dust, thus improving the screening effect. Furthermore, the synchronous rotation of the driving fan helps to draw in lithium carbonate dust while also drawing back dust generated by impact at the bottom opening, preventing dust from being trapped in large lithium carbonate particles and preventing dust leakage from the bottom opening of the tank. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ; Figure 3 This is a cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the separation cylinder of this utility model; Figure 5 This is a cross-sectional three-dimensional structural diagram of the separation cylinder of this utility model; Figure 6 This is an exploded three-dimensional cross-sectional view of the separation cylinder of this utility model; Figure 7 This is a partial cross-sectional three-dimensional structural schematic diagram of the separation cylinder of this utility model; Figure 8 This is a cross-sectional three-dimensional structural diagram of the conical disc of this utility model.
[0014] Reference numerals: 1. Tank body; 2. Separator cylinder; 3. Gearbox; 4. Fan; 5. Rotating shaft; 6. Conical disc; 61. Ball bearing; 7. Spiral strip; 8. Hole; 9. Limiting rod; 91. Roller; 10. Annular groove; 11. Protrusion; 12. Motor; 13. Feed pipe; 14. Exhaust pipe. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0016] A preferred embodiment of the present invention, a hydrocyclone separator for drying lithium carbonate, will be described in detail below, such as... Figures 1-8As shown, a hydrocyclone separator for drying lithium carbonate includes a tank 1. A separation cylinder 2 is fixedly installed in the center of the tank 1. The separation cylinder 2 is fixedly installed in the center of the tank 1 by a support rod, so that there is a falling gap between the inner wall of the tank 1 and the outer wall of the separation cylinder 2, so that large particles of lithium carbonate that are screened outward by centrifugal force can fall down and be collected through the gap between the inner wall of the tank 1 and the outer wall of the separation cylinder 2.
[0017] A gearbox 3 is fixedly installed at the center of the lower part of the separator cylinder 2. A fan 4 is driven to the bottom of the gearbox 3. A rotating shaft 5 is rotatably connected to the center of the tank body 1 and extends downward into the interior of the separator cylinder 2. The bottom of the rotating shaft 5 is driven to the gearbox 3. A conical disk 6 is rotatably connected to the top opening of the separator cylinder 2. The rotating shaft 5 passes through the center of the conical disk 6 and the conical disk 6 is slidably connected to the outside of the rotating shaft 5. A ball bearing 61 is rotatably connected to the conical disk 6 near the outer wall of the rotating shaft 5, so that the rotating shaft 5 can drive the conical disk 6 to rotate while the conical disk 6 can also move up and down relative to the rotating shaft 5.
[0018] Spiral strips 7 are evenly fixedly connected to the inner side of the top of the conical disc 6. A hole 8 is opened in the center of the top of the conical disc 6. The top of the conical disc 6 is a conical groove with a downward groove, and the top diameter of the conical disc 6 is larger than the opening diameter of the top of the separation cylinder 2, so that the conical disc 6 can block the opening at the top of the separation cylinder 2.
[0019] Limiting rods 9 are evenly fixedly installed on the outer periphery of the middle part of the conical disc 6. An annular groove 10 is opened on the inner side of the top of the separating cylinder 2. The bottom of the annular groove 10 has an evenly upward protrusion 11. One end of the limiting rod 9 is rotatably connected to a roller 91, and the roller 91 extends outward into the interior of the annular groove 10. When the conical disc 6 drives the limiting rod 9 to rotate in the annular groove 10, the roller 91 and the bottom protrusion 11 of the annular groove 10 cooperate to make the conical disc 6 bounce up intermittently, thus making it easier to shake off the smoke and dust.
[0020] A motor 12 is fixedly installed at the center of the top of the tank body 1, and the motor 12 is connected to the rotating shaft 5 for transmission, so that the rotating shaft 5 can be driven to rotate by the motor 12.
[0021] A feed pipe 13 is fixedly installed on the left side of the top of the tank body 1, and a smoke exhaust pipe 14 is fixedly installed on the right side of the top of the tank body 1. The opening inside the feed pipe 13 extends inward to the top of the conical disk 6, and the smoke exhaust pipe 14 is located above the feed pipe 13. Thus, the dried lithium carbonate can be fed through the feed pipe 13 into the interior of the tank body 1 and fall above the conical disk 6. At the same time, the upward-blown smoke can be collected through the smoke exhaust pipe 14 and transported to the bag filter for further processing.
[0022] The working principle of this utility model is as follows: In use, the dried lithium carbonate is fed into the tank 1 through the feed pipe 13. During the process of feeding the lithium carbonate into the tank 1, the lithium carbonate will fall onto the conical disk 6 through the opening extending inside the feed pipe 13.
[0023] While lithium carbonate is introduced, motor 12 is started, which drives the rotating shaft 5 to rotate. In turn, the rotating shaft 5 drives the conical disk 6 to rotate. During the rotation of the conical disk 6, in conjunction with the action of the spiral strip 7 on the inner side of the top of the conical disk 6, the large lithium carbonate particles can move better to the outside under the action of centrifugal force and friction. This allows the large lithium carbonate particles to move from the edge of the conical disk 6 to the space between the inner wall of the tank 1 and the outer wall of the separation cylinder 2, and then fall downwards to complete the collection.
[0024] During the rotation of the rotating shaft 5, the fan 4 located below the separator 2 is also driven to rotate by the gearbox 3, allowing the fan 4 to blow air upwards. Combined with the design of the hole 8 in the middle of the conical disc 6, air can also be blown upwards inside the top of the tank 1, thereby blowing the lithium carbonate dust in the center of the conical disc 6 upwards. This allows for better suction through the exhaust pipe 14 and transport to the bag filter for further processing. During the fall of large lithium carbonate particles, the fan 4 can also draw back the dust generated by the impact at the bottom opening of the tank 1, preventing the dust from being mixed in with the large lithium carbonate particles and preventing the dust from leaking out of the bottom opening of the tank 1.
[0025] The roller 91 at the outer end of the limiting rod 9 at the middle periphery of the conical disk 6 extends into the interior of the annular groove 10. With the uniform protrusion 11 at the bottom of the annular groove 10 and the limiting sliding connection between the conical disk 6 and the rotating shaft 5, the limiting rod 9 can intermittently cause the conical disk 6 to bounce upwards during the rotation of the conical disk 6. Combined with the gravity of the lithium carbonate falling above the conical disk 6, the conical disk 6 can shake up and down, which is beneficial to the separation of large lithium carbonate particles and lithium carbonate dust, and improves the screening effect of lithium carbonate.
[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A hydrocyclone separator for drying lithium carbonate, comprising a tank (1), characterized in that, A separator (2) is fixedly installed in the center of the tank (1). A gearbox (3) is fixedly installed in the center of the lower part of the separator (2). A fan (4) is connected to the bottom of the gearbox (3). A rotating shaft (5) is connected to the center of the tank (1) and extends downward into the interior of the separator (2). The bottom of the rotating shaft (5) is connected to the gearbox (3). A conical disc (6) is connected to the top opening of the separator (2). Spiral strips (7) are evenly fixedly connected to the inner side of the top of the conical disc (6). A hole (8) is opened in the center of the top of the conical disc (6).
2. The hydrocyclone for drying lithium carbonate according to claim 1, characterized in that, The separator (2) is fixedly installed in the center of the tank (1) by a support rod, so that there is a gap between the inner wall of the tank (1) and the outer wall of the separator (2).
3. The hydrocyclone for drying lithium carbonate according to claim 1, characterized in that, The rotating shaft (5) passes through the center of the conical disk (6), and the conical disk (6) is slidably connected to the outside of the rotating shaft (5) at the upper and lower limits. The conical disk (6) is connected to the outer wall of the rotating shaft (5) at the limit and rolling position with ball bearings (61).
4. The hydrocyclone for drying lithium carbonate according to claim 1, characterized in that, The top of the conical disk (6) is a conical groove with a downward groove, and the top diameter of the conical disk (6) is larger than the opening diameter of the top of the separating cylinder (2).
5. The hydrocyclone for drying lithium carbonate according to claim 1, characterized in that, Limiting rods (9) are uniformly fixedly installed on the outer periphery of the middle part of the conical disk (6). An annular groove (10) is opened on the inner side of the top of the separation cylinder (2). A uniformly upward protrusion (11) is provided at the bottom of the annular groove (10). A roller (91) is connected to the outer end of the limiting rod (9) for limiting rotation, and the roller (91) extends outward into the interior of the annular groove (10).
6. The hydrocyclone for drying lithium carbonate according to claim 1, characterized in that, A motor (12) is fixedly installed at the center of the top of the tank (1), and the motor (12) is connected to the rotating shaft (5) for transmission.
7. The hydrocyclone for drying lithium carbonate according to any one of claims 1-6, characterized in that, A feed pipe (13) is fixedly installed on the left side of the top of the tank (1), and a smoke exhaust pipe (14) is fixedly installed on the right side of the top of the tank (1). The opening inside the feed pipe (13) extends inward to the top of the conical disc (6), and the smoke exhaust pipe (14) is located on the upper side of the feed pipe (13).