A sieving device for cobalt carbonate production

Abstract

This utility model relates to the field of screening technology, and in particular to a screening device for cobalt carbonate production. It includes a screening tank with a cap at the top and a feed pipe at the top of the cap. A slag discharge valve is installed on one side of the screening tank, and a discharge pipe is installed at the bottom. An annular bracket is installed inside the screening tank, with a screening screen mounted at the top. A cleaning rod is rotatably mounted above the screening screen, with cleaning bristles at the bottom of the cleaning rod. The bottom of the cleaning bristles contacts the top of the screening screen. The cap has a drive mechanism for rotating the cleaning rod. This utility model effectively achieves automated cleaning, reduces the frequency of manual cleaning, and improves overall screening efficiency and raw material purity. It meets the high-precision requirements of cobalt carbonate production and has high practical value.

Description

Technical Field

[0001] This utility model relates to the field of screening technology in the cobalt carbonate production process, and in particular to a screening device for cobalt carbonate production. Background Technology

[0002] Cobalt carbonate is an indispensable key raw material in lithium-ion battery cathode materials, magnetic materials, catalysts, and ceramic glazes, and its product quality directly affects the performance of downstream applications. Especially in the lithium battery field, the energy density, cycle life, and safety of batteries place almost stringent requirements on the purity and physical properties (such as particle size distribution and flowability) of cobalt carbonate powder. High purity (typically ≥99.5%) is a basic threshold, while the uniformity of powder particle size and a suitable particle size range are crucial for ensuring the stability of subsequent synthesis processes, the uniformity of cathode material coating, and the final electrochemical performance of the battery.

[0003] Vibrating screens rely on high-frequency vibration to force powder through the screen mesh. However, their continuous and strong vibrations can easily cause secondary breakage of brittle powder particles, producing excessive fine powder and altering the preset particle size distribution. Furthermore, the adhesive nature of cobalt carbonate powder can cause rapid clogging of the screen mesh. Once clogged, screening efficiency drops sharply, forcing frequent production interruptions for manual cleaning or screen replacement. This significantly increases labor costs and downtime, and the cleaning process inevitably results in the loss of valuable raw materials. While airflow screens utilize airflow to disperse powder and prevent clogging, they are energy-intensive, expensive, and the strong airflow can easily carry valuable fine cobalt carbonate particles into the dust collection system, causing considerable material waste and a burden on recycling. Rotary drum screens typically perform poorly in terms of sealing and screening efficiency, especially in handling fine powders, and are difficult to clean internally, leading to residual contamination. In addition, the open or semi-open design of many screening devices makes it difficult to effectively control dust generated by fine cobalt carbonate powder during operation, resulting in material loss, environmental pollution, and potential occupational health hazards.

[0004] Therefore, it is necessary to develop a new type of screening device that can effectively solve screen clogging, achieve automated cleaning, reduce manual intervention and raw material loss, optimize the working environment, and minimize damage to the powder particles themselves. Utility Model Content

[0005] The purpose of this utility model is to provide a sieving device for cobalt carbonate production, in order to solve the problem mentioned in the background art that current sieving devices for cobalt carbonate production mostly adopt a single filter screen structure, and the agglomerates on the filter screen surface are difficult to clean automatically. Manual cleaning not only increases operating costs, but also easily causes waste of raw materials.

[0006] Specifically, a sieving device for cobalt carbonate production includes a sieving tank, a cover installed at the top of the sieving tank, a feed pipe installed at the top of the cover, a slag discharge valve installed on one side of the sieving tank, a discharge pipe installed at the bottom of the sieving tank, an annular bracket installed inside the sieving tank, a sieving screen installed at the top of the annular bracket, a cleaning rod rotatably mounted above the sieving screen, cleaning bristles installed at the bottom of the cleaning rod, the bottom of the cleaning bristles contacting the top of the sieving screen, and a drive mechanism for driving the cleaning rod to rotate on the cover.

[0007] Furthermore, the drive mechanism includes a rotating shaft and a motor. The rotating shaft is rotatably positioned at the center of the cover, and the motor is fixed to the surface of the cover. The bottom end of the rotating shaft is connected to a cleaning rod, and the motor drives the rotating shaft to rotate, which in turn drives the cleaning rod to rotate.

[0008] Furthermore, the outer side of the rotating shaft and the inner side of the cover are rotatably connected. A square opening is provided at the bottom of the rotating shaft, and a square rod is slidably connected to the inner side of the square opening. A connecting shaft is installed at the bottom of the square rod, and the connecting shaft is movably connected to one end of the cleaning rod. Specifically, one end of the cleaning rod can rotate vertically around the connecting shaft.

[0009] The beneficial effects of adopting the above-mentioned further solution are as follows: Rotational power is transmitted through the rotating shaft in the drive mechanism. The square opening on the inner side of the rotating shaft slides in conjunction with the square rod, ensuring that the square rod rotates synchronously with the rotating shaft while moving up and down along the square opening to accommodate possible minor deformations or installation errors of the screen. The connecting shaft connects the square rod and the cleaning rod, ensuring stable transmission of rotational power to the cleaning rod, which drives the cleaning bristles to efficiently clean the filter screen, avoiding incomplete cleaning due to power transmission interruption and ensuring screening efficiency. The movable connection between the connecting shaft and one end of the cleaning rod ensures that the cleaning bristles always adhere to the filter screen surface when the cleaning rod rotates, regardless of whether it is a flat or conical screen. Furthermore, when large pieces of material are stuck in the screen, the cleaning rod can adaptively rotate and lift, preventing damage to the screen.

[0010] Furthermore, a spring is installed at the top of the connecting shaft, and the top of the spring is fixedly connected to the bottom of the rotating shaft.

[0011] The beneficial effect of adopting the above-mentioned further solution is that, by fixing the spring at the top of the connecting shaft to the bottom of the rotating shaft, the elastic force of the spring always pushes the connecting shaft downward, so that the cleaning bristles are closely attached to the surface of the screen; even if there are slight protrusions or depressions on the surface of the screen, the spring can also adaptively adjust the pressure of the cleaning bristles through deformation, ensuring that the bristles are always in contact with the filter screen, improving the cleaning effect, and avoiding local agglomerates remaining and clogging the filter screen.

[0012] Furthermore, a retainer is installed at the top of the cover, and a motor is installed on one side of the retainer. Both the output end of the motor and the top of the shaft are fitted with bevel gears, and the motor and the shaft are connected by bevel gear transmission.

[0013] The advantages of adopting the above-mentioned further solution are that the motor is fixed by the retainer at the top of the cover, ensuring that the motor does not shake during operation and ensuring stable power output; the horizontal rotational power of the motor is converted into the vertical rotational power of the shaft by the motor-driven bevel gear transmission, which is compatible with the installation layout of the drive mechanism.

[0014] Furthermore, the top of the annular bracket is flush with the bottom of the inner side of the slag discharge valve.

[0015] The beneficial effect of adopting the above-mentioned further solution is that, by aligning the top of the annular bracket with the bottom inner side of the slag discharge valve, the agglomerates swept down by the cleaning rod can naturally slide down the surface of the bracket to the slag discharge valve, making it convenient to quickly discharge them through the slag discharge valve, avoiding the accumulation of agglomerates in the screening tank, and ensuring the purity of the raw materials after screening.

[0016] Furthermore, the sieve is made of stainless steel and has a conical shape that is higher in the middle and lower around the edges.

[0017] The beneficial effects of adopting the above-mentioned further solutions are that the stainless steel sieve enhances the corrosion resistance of the filter screen, resists the possible chemical erosion of cobalt carbonate raw materials, and extends the service life of the filter screen; the conical sieve with a high center and low periphery increases the sieving area and improves the sieving volume per unit time. At the same time, the conical structure causes large particles to converge to the bottom of the filter screen under the action of gravity, which is convenient for discharge through the slag discharge valve, reduces the accumulation of agglomerates on the surface of the filter screen, and further improves the sieving efficiency.

[0018] Furthermore, flanges are welded to the top outer side of the feed pipe and the bottom outer side of the discharge pipe.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the flanges on the outside of the feed pipe and the discharge pipe facilitate the bolt connection of the screening device with the upstream and downstream equipment of cobalt carbonate production, ensuring a tight and leak-free connection and avoiding loss or contamination of raw materials during transportation.

[0020] Furthermore, a fixing rod is installed on the other side of the screening tank, and a fixing plate is installed at one end of the fixing rod.

[0021] The beneficial effect of adopting the above-mentioned further solution is that, by cooperating with the fixing rod and fixing plate on the other side of the sieving tank, the sieving device can be fixed in a designated position in the production workshop, preventing the equipment from shifting due to the impact or vibration of raw material transportation.

[0022] Furthermore, a control panel is installed on one side of the screening tank, and the control panel is electrically connected to the motor via wires.

[0023] The beneficial effect of adopting the above-mentioned further solution is that, through the control panel on one side of the sieving tank, the operator can remotely control the start and stop of the motor and the speed, and adjust the cleaning frequency and intensity of the cleaning rod without having to get close to the equipment. Beneficial effects

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: This screening device for cobalt carbonate production provides a closed screening space for cobalt carbonate raw materials through a screening tank, preventing raw material leakage or external impurities from entering during the screening process; the top of the screening tank is sealed with a cover, making it easy to open for maintenance of internal components; the cobalt carbonate raw materials to be screened are introduced into the screening tank through the feed pipe, and the qualified fine powder after screening is discharged through the discharge pipe, realizing a continuous screening process; the slag discharge valve periodically discharges the agglomerates accumulated in the screening tank, preventing agglomerates from clogging and affecting screening efficiency; the annular bracket supports the screen, ensuring the stability of the screen position and preventing the screen from shifting due to raw material impact; the screen intercepts large particles in the raw materials, realizing particle size classification of cobalt carbonate raw materials; the cleaning rod drives the cleaning brush bristles to rotate, cleaning the surface of the screen and preventing agglomerates from adhering and clogging the filter holes; the cleaning rod is driven to rotate by a drive mechanism. This invention can effectively achieve automated cleaning, reduce the frequency of manual cleaning, improve the overall sieving efficiency and raw material purity, and meet the high precision requirements of cobalt carbonate production, thus having high practical value. Attached Figure Description

[0025] Figure 1 This is one of the three-dimensional structural schematic diagrams disclosed in the embodiments of this utility model; Figure 2 This is the second three-dimensional structural schematic diagram disclosed in the embodiment of this utility model; Figure 3 This is one of the disassembled three-dimensional structural diagrams disclosed in the embodiments of this utility model; Figure 4 This is the second disassembled three-dimensional structural diagram disclosed in the embodiment of this utility model; Figure 5 This is the third disassembled three-dimensional structural diagram disclosed in the embodiment of this utility model.

[0026] In the diagram: 1-Sieving tank; 2-Cap; 3-Feed pipe; 4-Slag discharge valve; 5-Discharge pipe; 6-Flange; 7-Fixing rod; 8-Fixing plate; 9-Sieving screen; 10-Annular bracket; 11-Cleaning rod; 12-Cleaning bristles; 13-Drive mechanism; 1301-Rotating shaft; 1302-Square rod; 1303-Connecting shaft; 1304-Spring; 1305-Cage; 1306-Motor; 1307-Bevel gear. Detailed Implementation

[0027] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Furthermore, it should be understood in this utility model that the directions or positional relationships indicated by "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", and "outer" are based on the directions or positional relationships shown in the accompanying drawings and are only for the purpose of describing this utility model. They are not intended to indicate or imply that the device or element referred to must have this specific orientation or operate in a specific orientation, and should not be construed as a limitation of this utility model.

[0029] Please see Figures 1-5 This utility model provides a technical solution: a sieving device for cobalt carbonate production, including a sieving tank 1, a cover 2 installed at the top of the sieving tank 1, a feed pipe 3 installed at the top of the cover 2, a slag discharge valve 4 installed on one side of the sieving tank 1, a discharge pipe 5 installed at the bottom of the sieving tank 1, an annular bracket 10 installed inside the sieving tank 1, a sieve screen 9 installed at the top of the annular bracket 10, a cleaning rod 11 rotatably mounted above the sieve screen 9, cleaning bristles 12 installed at the bottom of the cleaning rod 11, the bottom of the cleaning bristles 12 contacting the top of the sieve screen 9, and a drive mechanism 13 for driving the cleaning rod 11 to rotate on the cover 2. The sieving tank 1 provides a closed sieving space for the cobalt carbonate raw material, preventing leakage of raw material or contamination of external impurities during the sieving process; the cover 2 provides a closed sieving space for the cobalt carbonate raw material. The top of the sieving tank 1 is sealed for easy opening and maintenance of internal components. The cobalt carbonate raw material to be sieved is introduced into the sieving tank 1 through the feed pipe 3, and the qualified fine powder after sieving is discharged through the discharge pipe 5, realizing a continuous sieving process. The slag discharge valve 4 periodically discharges the agglomerates accumulated in the sieving tank 1 to prevent agglomerates from clogging and affecting sieving efficiency. The annular bracket 10 supports the screen 9 to ensure the stability of the screen 9 and prevent the screen 9 from shifting due to the impact of the raw material. The screen 9 intercepts large particles in the raw material to achieve particle size classification of the cobalt carbonate raw material. The cleaning rod 11 drives the cleaning brush 12 to rotate and clean the surface of the screen 9 to prevent agglomerates from adhering and clogging the filter holes. The drive mechanism 13 drives the cleaning rod 11 to rotate, realizing automated cleaning and reducing the frequency of manual cleaning.

[0030] The drive mechanism 13 includes a rotating shaft 1301 and a motor 1306. The rotating shaft 1301 is rotatably disposed at the center of the cover 2, and the motor 1306 is fixed to the surface of the cover 2. The bottom end of the rotating shaft 1301 is connected to the cleaning rod 11. The motor 1306 drives the rotating shaft 1301 to rotate, which in turn drives the cleaning rod 11 to rotate.

[0031] The outer side of the rotating shaft 1301 and the inner side of the cover 2 are rotatably connected. The bottom end of the rotating shaft 1301 has a square opening, and a square rod 1302 is slidably connected to the inner side of the square opening. A connecting shaft 1303 is installed at the bottom end of the square rod 1302. The connecting shaft 1303 and one end of the cleaning rod 11 are movably connected. The rotating power is transmitted through the rotating shaft 1301 in the drive mechanism 13. The square opening on the inner side of the rotating shaft 1301 and the square rod 1302 are slidably engaged to ensure that the square rod 1302 rotates synchronously with the rotating shaft 1301 and can move up and down along the square opening to accommodate possible slight deformation or installation errors of the screen 9. The square rod 1302 and the cleaning rod 11 are connected by the connecting shaft 1303 to ensure that the rotating power is stably transmitted to the cleaning rod 11, which drives the cleaning bristles 12 to efficiently clean the filter screen and avoid incomplete cleaning due to interruption of power transmission, thus ensuring screening efficiency.

[0032] One end of the cleaning rod 11 can rotate vertically around the connecting shaft 1303, ensuring that the cleaning bristles 12 always adhere to the filter screen surface when the cleaning rod 11 rotates, whether it is a flat screen or a conical screen. When large pieces of material are stuck in the screen 9, the cleaning rod 11 can also be rotated and lifted to avoid damaging the screen 9. Furthermore, a torsion spring can be added at the connection between the connecting shaft 1303 and the cleaning rod 11 to apply a force that makes the cleaning rod 11 continuously downward, so that the cleaning bristles 12 continue to adhere to the screen 9.

[0033] A spring 1304 is installed at the top of the connecting shaft 1303. The top of the spring 1304 is fixedly connected to the bottom of the rotating shaft 1301. The elastic force of the spring 1304 at the top of the connecting shaft 1303 is fixedly connected to the bottom of the rotating shaft 1301. The elastic force of the spring 1304 always pushes the connecting shaft 1303 downward, so that the cleaning bristles 12 are tightly attached to the surface of the screen 9. Even if there are slight protrusions or depressions on the surface of the screen 9, the spring 1304 can adaptively adjust the pressure of the cleaning bristles 12 through deformation to ensure that the bristles are always in contact with the screen, improve the cleaning effect, and avoid local agglomerates from clogging the screen.

[0034] The top of the cover 2 is equipped with a retainer 1305, and a motor 1306 is installed on one side of the retainer 1305. Both the output end of the motor 1306 and the top of the shaft 1301 are fitted with bevel gears 1307. The motor 1306 and the shaft 1301 are connected by bevel gears 1307. The retainer 1305 at the top of the cover 2 fixes the motor 1306 to ensure that the motor 1306 does not shake during operation and to ensure stable power output. The bevel gears 1307 driven by the motor 1306 drive the horizontal rotational power of the motor 1306 to convert the vertical rotational power of the shaft 1301, which is compatible with the installation layout of the drive mechanism 13.

[0035] The top of the annular bracket 10 is flush with the bottom of the inner side of the slag discharge valve 4. By aligning the top of the annular bracket 10 with the bottom of the inner side of the slag discharge valve 4, the agglomerates swept down by the cleaning rod 11 can slide naturally down the surface of the bracket to the slag discharge valve 4, making it easy to discharge them quickly through the slag discharge valve 4. This prevents the agglomerates from accumulating in the screening tank 1 and ensures the purity of the raw materials after screening.

[0036] Among them, the sieve 9 is made of stainless steel and has a conical shape with a higher center and lower edges. The stainless steel sieve 9 enhances the corrosion resistance of the filter screen, resists the possible chemical erosion of cobalt carbonate raw materials, and extends the service life of the filter screen. The conical shape of the sieve 9 increases the screening area and improves the screening volume per unit time. At the same time, the conical structure causes large particles to converge to the bottom of the filter screen under the action of gravity, which is convenient for discharge through the slag discharge valve 4, reduces the accumulation of agglomerates on the surface of the filter screen, and further improves the screening efficiency.

[0037] Flanges 6 are welded to the top outer side of the feed pipe 3 and the bottom outer side of the discharge pipe 5. The flanges 6 on the outer sides of the feed pipe 3 and the discharge pipe 5 facilitate the bolt connection of the screening device with the upstream and downstream equipment of cobalt carbonate production, ensuring a tight and leak-free connection and avoiding loss or contamination of raw materials during transportation.

[0038] A fixing rod 7 is installed on the other side of the screening tank 1, and a fixing plate 8 is installed at one end of the fixing rod 7. The fixing rod 7 and the fixing plate 8 on the other side of the screening tank 1 are used to fix the screening device in the designated position in the production workshop to prevent the equipment from shifting due to the impact or vibration of raw material transportation.

[0039] The sieve tank 1 has a control panel installed on one side. The control panel is electrically connected to the motor 1306 via wires. Through the control panel on the side of the sieve tank 1, the operator can remotely control the start, stop and speed of the motor 1306, and adjust the cleaning frequency and intensity of the cleaning rod 11 without having to get close to the equipment.

[0040] Specifically, the working principle of this cobalt carbonate production sieving device is as follows: During use, the sieving tank 1 provides a closed sieving space for the cobalt carbonate raw material, preventing leakage or contamination of external impurities during sieving; the top of the sieving tank 1 is sealed by the cap 2 for easy opening and maintenance of internal components; the cobalt carbonate raw material to be sieving is introduced into the sieving tank 1 through the feed pipe 3, and the qualified fine powder after sieving is discharged through the discharge pipe 5, achieving a continuous sieving process; the slag discharge valve 4 periodically discharges the agglomerates accumulated in the sieving tank 1 to prevent blockage and maintain sieving efficiency; the annular bracket 10 supports the screen 9, ensuring its stable position and preventing displacement due to raw material impact; the screen 9 is blocked by the screen 9... The process involves cutting off agglomerates in the raw material to achieve particle size classification of cobalt carbonate. A cleaning rod 11 drives the cleaning brush 12 to rotate, cleaning the surface of the sieve 9 and preventing agglomerates from adhering and clogging the filter mesh. A drive mechanism 13 drives the cleaning rod 11 to rotate, achieving automated cleaning and reducing the frequency of manual cleaning. Rotational power is transmitted through a rotating shaft 1301 in the drive mechanism 13. The square opening on the inner side of the rotating shaft 1301 slides with the square rod 1302, ensuring that the square rod 1302 rotates synchronously with the rotating shaft 1301 while also moving up and down along the square opening to accommodate possible minor deformations or installation errors in the sieve 9. A connecting shaft 1303 connects the square rod 1302 and the cleaning rod 11, ensuring stable rotational power. The power is transmitted to the cleaning rod 11, which drives the cleaning bristles 12 to efficiently clean the filter screen, avoiding incomplete cleaning due to power transmission interruption and ensuring sieving efficiency. The connecting shaft 1303 is fixedly connected to the bottom of the rotating shaft 1301 via a spring 1304 at its top. The elastic force of the spring 1304 constantly pushes the connecting shaft 1303 downwards, ensuring the cleaning bristles 12 are tightly fitted to the surface of the screen 9. Even if there are slight protrusions or depressions on the surface of the screen 9, the spring 1304 can adaptively adjust the pressure of the cleaning bristles 12 through deformation, ensuring the bristles are always in contact with the filter screen, improving cleaning effect, and preventing localized agglomerates from clogging the filter screen. The motor 1306 is fixed by the retainer 1305 at the top of the cover 2, ensuring the electric motor... The motor 1306 operates without shaking, ensuring stable power output. The motor 1306 drives the bevel gear 1307, which in turn converts the horizontal rotational power of the motor 1306 into the vertical rotational power of the shaft 1301. This is adapted to the installation layout of the drive mechanism 13. The top of the annular bracket 10 is flush with the bottom inner side of the slag discharge valve 4, allowing the agglomerates swept down by the cleaning rod 11 to slide naturally down the bracket surface to the slag discharge valve 4 for easy and quick discharge. This prevents the agglomerates from accumulating in the sieving tank 1, ensuring the purity of the raw material after sieving. The stainless steel sieve 9 enhances the corrosion resistance of the filter screen, resists the possible chemical corrosion of the cobalt carbonate raw material, and extends the service life of the filter screen.The sieving area is increased by using a conical screen 9 with a high center and low edges, thereby increasing the sieving volume per unit time. Simultaneously, the conical structure causes large particles to converge towards the bottom of the screen under gravity, facilitating discharge through the slag discharge valve 4 and reducing the accumulation of agglomerates on the screen surface, further improving sieving efficiency. The flanges 6 on the outside of the feed pipe 3 and discharge pipe 5 facilitate bolted connections between the sieving device and upstream / downstream equipment in cobalt carbonate production, ensuring a tight, leak-free connection and preventing material loss or contamination during transport. The fixing rod 7 and fixing plate 8 on the other side of the sieving tank 1 secure the sieving device to a designated location in the production workshop, preventing displacement due to impact or vibration during material transport. Through the control panel on one side of the sieving tank 1, operators can remotely control the start / stop and speed of the motor 1306, and adjust the cleaning frequency and intensity of the cleaning rod 11 without approaching the equipment. This invention effectively achieves automated cleaning, reduces manual cleaning frequency, and improves overall sieving efficiency and raw material purity, meeting the high-precision requirements of cobalt carbonate production and possessing high practical value.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sieving device for cobalt carbonate production, characterized in that: The device includes a sieving tank, a cap at the top of which is fitted with a feed pipe. A slag discharge valve is installed on one side of the sieving tank, and a discharge pipe is installed at the bottom. An annular bracket is installed inside the sieving tank, and a sieve screen is installed at the top of the annular bracket. A cleaning rod is rotatably mounted above the sieve screen, and cleaning bristles are installed at the bottom of the cleaning rod. The bottom of the cleaning bristles contacts the top of the sieve screen. The cap is equipped with a drive mechanism for rotating the cleaning rod.

2. The sieving device for cobalt carbonate production according to claim 1, characterized in that: The driving mechanism includes a rotating shaft and a motor. The rotating shaft is rotatably disposed at the center of the cover, and the motor is fixed to the surface of the cover. The bottom end of the rotating shaft is connected to a cleaning rod, and the motor drives the rotating shaft to rotate, which in turn drives the cleaning rod to rotate.

3. The sieving device for cobalt carbonate production according to claim 2, characterized in that: The outer side of the rotating shaft and the inner side of the cover are rotatably connected. A square opening is provided at the bottom end of the rotating shaft. A square rod is slidably connected to the inner side of the square opening. A connecting shaft is installed at the bottom end of the square rod. The connecting shaft is movably connected to one end of the cleaning rod. One end of the cleaning rod can rotate vertically about the connecting shaft.

4. The sieving device for cobalt carbonate production according to claim 3, characterized in that: A spring is installed at the top of the connecting shaft, and the top of the spring is fixedly connected to the bottom of the rotating shaft.

5. The sieving device for cobalt carbonate production according to claim 2, characterized in that: A retainer is installed at the top of the cover, and a motor is installed on one side of the retainer. Both the output end of the motor and the top of the shaft are fitted with bevel gears, and the motor and the shaft are connected by bevel gear transmission.

6. The sieving device for cobalt carbonate production according to claim 1, characterized in that: The top of the annular bracket is flush with the bottom of the inner side of the slag discharge valve.

7. The sieving device for cobalt carbonate production according to claim 1, characterized in that: The sieve is made of stainless steel and has a conical shape that is higher in the middle and lower around the edges.

8. The sieving device for cobalt carbonate production according to claim 1, characterized in that: Flanges are welded to the outer top of the feed pipe and the outer bottom of the discharge pipe.

9. The sieving device for cobalt carbonate production according to claim 1, characterized in that: A fixing rod is installed on the other side of the sieving tank, and a fixing plate is installed at one end of the fixing rod.

10. The sieving device for cobalt carbonate production according to claim 1, characterized in that: A control panel is installed on one side of the sieving tank, and the control panel is electrically connected to the motor via wires.

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