A cobalt salt filtering and washing integrated device

Abstract

This invention discloses an integrated cobalt salt filtration and washing device, relating to the field of cobalt salt production. It includes a reaction tank, with a filter press component fixedly installed at the lower outer end of the reaction tank. The filter press component includes a fixed outer shell, a filter cartridge fixedly installed inside the fixed outer shell, and an outer filter cylinder slidably installed inside the fixed outer shell. A bottom straight cylinder is fixedly installed at the lower end of the filter cartridge, and an inclined cylinder is fixedly installed at the bottom end of the outer filter cylinder. The outer filter cylinder and the fixed outer shell are sealed together, and the inclined cylinder and the bottom straight cylinder are slidably sealed. By incorporating the filter press component, this device can automatically perform filter pressing during unloading without transferring the slurry. It utilizes the pressure generated by the reaction vessel to simultaneously unload and filter the slurry, improving production efficiency and filter quality, reducing energy consumption and pollution risks during material transfer, and increasing utilization.

Description

Technical Field

[0001] This invention relates to the field of cobalt salt production, specifically to an integrated cobalt salt filtration and washing device. Background Technology

[0002] Cobalt salts are core precursors for the preparation of high-performance battery materials, hard alloys, and catalysts. Their purity and cleanliness directly determine the upper limit of the final product's performance. In the current industrial production process of cobalt salts, after the slurry is synthesized in the reactor, it usually needs to go through a series of multiple equipment processes, including a reactor, a filter press, and a washing vessel, to achieve solid-liquid separation and impurity removal. However, this traditional step-by-step operation mode has revealed significant technical bottlenecks and efficiency shortcomings in the current era of large-scale, high-purity production. First, the production efficiency is low and the material loss is serious. In the existing process, cobalt salt slurry must be repeatedly transferred between different equipment by a transfer pump. Each transfer is accompanied by equipment start-up and shutdown, pipeline flushing and material residue. This not only greatly extends the production cycle of a single batch of products, but also causes the raw material to be retained and lost by as much as 8%-12% on the pipeline and the inner wall of the equipment. This directly causes raw material waste and increases production costs, which seriously restricts the improvement of production efficiency. Secondly, the quality of pressure filtration is unstable and it is difficult to meet the requirements of high purity. Traditional pressure filtration equipment mostly relies on external power to provide pressure, and the pressure control accuracy is limited. In addition, the slurry is prone to stratification and sedimentation during the transfer process, resulting in a loose and uneven structure of the final filter cake and incomplete solid-liquid separation. This directly affects the impurity removal effect of the subsequent washing process, making it difficult to accurately control the impurity content of the product at the extremely low level required for high-end applications, and failing to meet the stringent requirements of high-end fields such as new energy materials for the purity of cobalt salts. Furthermore, high energy consumption and pollution risks coexist; the material transfer of multiple processes requires a large amount of electricity to drive the conveying system, and the operation of external independent filter press equipment also increases the overall energy consumption, which runs counter to the current industry trend of energy conservation and consumption reduction; more importantly, cobalt salt slurry is mostly corrosive, and media leakage is very likely to occur during multiple transfers, which not only pollutes the working environment, but also introduces microorganisms and particulate impurities due to the frequent contact between the material and the external environment, posing a potential threat to the production quality of high-purity cobalt salt; Although there are devices in the existing technology that attempt to integrate filtration and washing functions, most of them still do not break away from the technical path of "step-by-step processing" and have not completely eliminated the intermediate links of slurry transfer. At the same time, they generally lack effective utilization of the reaction pressure inside the reactor, resulting in complex equipment structure, high energy consumption, and difficulty in adapting to the special process characteristics of cobalt salt slurry with strong corrosiveness and fine particle size. They cannot fundamentally solve the industry pain points of material contamination and low utilization rate. In summary, developing an integrated device that can achieve simultaneous unloading and filtration, eliminate the need for cross-equipment transfer of slurry, and utilize the pressure of the reactor itself to improve separation efficiency has become an urgent need in the field of cobalt salt preparation to break through technical bottlenecks and achieve efficient and green production. Summary of the Invention

[0003] The purpose of this invention is to provide an intelligent control system and method for sulfur flotation based on the dynamic characteristics of foam grayness in an integrated cobalt salt filtration and washing device, so as to solve the problems mentioned in the background art.

[0004] A cobalt salt filtration and washing integrated device includes a reaction tank. A filter press component is fixedly installed at the lower outer end of the reaction tank. The filter press component includes a fixed outer shell. A filter press core is fixedly installed inside the fixed outer shell. A filter press outer cylinder is slidably installed inside the fixed outer shell. A bottom straight cylinder is fixedly installed at the lower end of the filter press core. An inclined cylinder is fixedly installed at the bottom end of the filter press outer cylinder. The outer cylinder of the filter press is sealed to the fixed outer shell, and the inclined cylinder is slidably sealed to the bottom straight cylinder. The inner diameter of the outer cylinder of the filter press gradually decreases from top to bottom, the outer diameter of the filter core cylinder gradually decreases from top to bottom, the inner diameter of the inclined cylinder gradually decreases from top to bottom, and the inclination angle inside the inclined cylinder is greater than the inclination angle inside the outer cylinder of the filter press.

[0005] Furthermore, the lower end of the filter press outer cylinder is detachably equipped with multiple evenly distributed filter plates, a forming layer is formed between the filter press outer cylinder and the filter press core cylinder, a filter press cavity is formed between the filter press outer cylinder and the fixed outer shell, a connecting groove is provided on the filter press core cylinder, a liquid outlet pipe is fixedly installed inside the connecting groove, the liquid outlet pipe is used to connect the reaction tank and the forming layer, multiple evenly distributed scraper plates are fixedly installed at the inner ring of the filter press outer cylinder, and the outer surface roughness of the filter press core cylinder is greater than the inner surface roughness of the filter press outer cylinder.

[0006] Furthermore, a liquid collection shell is fixedly installed on the outside of the filter press outer cylinder, and multiple filter plates are located inside the liquid collection shell. An inlet pipe is fixedly installed on one side of the liquid collection shell, and a drain pipe is fixedly installed on the side of the liquid collection shell away from the inlet pipe. A first check valve is fixedly installed on the inlet pipe, and a second check valve is fixedly installed on the drain pipe.

[0007] Furthermore, a sealing cap is fixedly installed at the top of the reaction vessel, a sealing piston is slidably installed inside the reaction vessel, a central threaded rod is rotatably connected between the reaction vessel and the sealing cap, the sealing piston is threadedly fitted onto the outside of the central threaded rod, a sealing ring for sealing is fixedly installed on the sealing piston, a first guide rod is fixedly installed inside the reaction vessel, and the sealing piston is slidably fitted onto the outside of the first guide rod.

[0008] Furthermore, the sealing piston has multiple evenly distributed connecting grooves, which are spiral in shape. A rotating ring is rotatably mounted on the upper surface of the sealing piston, and multiple sealing plates corresponding to the connecting grooves are fixedly mounted on the rotating ring.

[0009] Furthermore, a second guide rod is rotatably connected between the reaction vessel and the sealing cover. An adjustment handle is fixedly installed at the top of the second guide rod, and the adjustment handle is located above the sealing cover. A rotation lever is slidably installed on the second guide rod, and a control linkage is rotatably connected between the sealing plate and the rotation lever.

[0010] Furthermore, a mating component is fixedly installed on the upper outer side of the reaction vessel. The mating component includes a central threaded cylinder, and a movable mating plate is sleeved on the outside of the central threaded cylinder. Multiple evenly distributed connecting slide rods are fixedly installed on the movable mating plate, and the multiple connecting slide rods are all fixedly installed on the outer cylinder of the filter press.

[0011] Furthermore, a mating toothed ring is fitted around the outer ring of the central threaded cylinder via a threaded connection. A lifting plate is rotatably mounted below the mating toothed ring. A limiting mechanism is connected between the lifting plate and the movable mating plate. The limiting mechanism is composed of a spring and a guide rod. The guide rod is located at the center of the spring and is fixedly mounted on the movable mating plate. The guide rod slides through the lifting plate.

[0012] Furthermore, a feeding port for feeding is fixedly installed on the upper surface of the reaction vessel, a second transmission wheel is rotatably installed on the upper surface of the sealing cover, a breather valve for balancing the internal air pressure of the reaction vessel is fixedly installed on the sealing cover, the second transmission wheel is fixedly connected to the end of the central threaded rod, a mating gear is rotatably installed on the lifting plate, the mating gear meshes with the outer ring of the mating gear ring, a driving device is provided above the sealing cover, a first transmission wheel is fixedly installed on the driving end of the driving device, the first transmission wheel and the second transmission wheel are connected by belt drive, a connecting sleeve is fixedly installed on the lower surface of the first transmission wheel, a central connecting rod is slidably installed on the lower end of the connecting sleeve, and the central connecting rod is fixedly installed in the middle of the mating gear.

[0013] Furthermore, a locking component is fixedly installed on the fixed housing. The locking component includes a fixed plate, a movable handle is slidably installed on the fixed plate, a limit rod is fixedly installed on the movable handle, and the limit rod extends to the bottom of the movable mating plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a filter press component, this device can automatically perform filter press operation during unloading without transferring the slurry. It uses the pressure generated by the reactor to filter the slurry while unloading, which improves production efficiency and filter press quality, reduces energy consumption and pollution risks during material transfer, and increases utilization rate. 2. By setting a sealed piston, this device can achieve stirring, feeding, cleaning and discharging through simple reciprocating motion during operation, integrating multiple functions into one, significantly reducing equipment complexity and operation difficulty; 3. This device, by setting up a filter press cylinder and an outer filter press cylinder, allows the slurry to be pressed into a thin cake-shaped filter cake, which can be automatically peeled off and transported to the collection area, avoiding secondary pollution caused by manual intervention. Furthermore, the filter cake can be cleaned multiple times by controlling the locking components to ensure that impurities are completely removed. 4. When cleaning the filter cake, this device can also open the connecting groove to allow water to flow up and down with the sealing piston to clean the entire inside of the reaction tank. After cleaning the slurry attached to the inside of the reaction tank, it re-enters the filter press cycle, realizing the equipment's self-cleaning and zero residue. At the same time, when the connecting groove is opened, the water flows through the sealing piston guide groove and is evenly sprayed to all parts of the inner wall. Combined with the reciprocating motion of the sealing piston, it forms a dynamic flush, effectively removing stubborn deposits. 5. After the filter press is completed, the connection between the inlet pipe and the water tank can be cut off, allowing it to connect with the external warm air. Then, with the reciprocating motion of the sealed piston, the filter cake is initially dried, which facilitates the subsequent transfer and storage of the filter cake. This makes the subsequent drying process faster and more convenient, and also prevents the filter cake from containing too much moisture, which could cause it to stick to the conveyor belt. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the filter press component in this invention; Figure 3 This is a schematic diagram of the structure of the mating components in this invention; Figure 4 This is a cross-sectional view of the fixed outer shell and filter cylinder in this invention; Figure 5 This is a cross-sectional structural diagram of the reaction vessel in this invention; Figure 6 This is a schematic diagram of the sealing piston in this invention; Figure 7 This is a schematic diagram of the drive device in this invention.

[0016] In the diagram: 1. Reaction vessel; 2. Filter press assembly; 3. Fitting components; 4. Inlet pipe; 5. Locking component; 6. Drive unit; 11. Sealing cover; 12. Sealing piston; 13. Central threaded rod; 14. First guide rod; 15. Second guide rod; 16. Rotating ring; 21. Fixed outer shell; 22. Filter press cartridge; 23. Filter press outer cylinder; 24. Liquid collection shell; 31. Central threaded cylinder; 32. Moving mating plate; 33. Mating gear ring; 34. Lifting plate; 35. Limiting mechanism; 36. Mating gear; 41. Drain pipe; 51. Fixed plate; 52. Moving handle; 53. Limiting rod; 61, First transmission wheel; 62, Connecting sleeve; 63, Central connecting rod; 111, Feed port; 112, Second transmission wheel; 113, Breathing valve; 121, Connecting groove; 122, Sealing ring; 151, Rotating lever; 152, Adjusting handle; 161, Sealing plate; 162, Control connecting rod; 211, Filter press chamber; 212, Forming layer; 221, Bottom straight cylinder; 222, Connecting groove; 223, Liquid outlet pipe; 231, Scraper; 232, Filter plate; 233, Inclined cylinder; 311, Connecting slide rod; 401, First check valve; 411, Second check valve. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-7 This invention provides a technical solution for an integrated cobalt salt filtration and washing device: it includes a reaction tank 1, a filter press 2 fixedly installed at the lower external end of the reaction tank 1, a driving device 6 above a sealing cover 11, a sealing cover 11 fixedly installed at the top of the reaction tank 1, a sealing piston 12 slidably installed inside the reaction tank 1, a plurality of evenly distributed connecting grooves 121 on the sealing piston 12, the connecting grooves 121 being spiral in shape, a central threaded rod 13 rotatably connecting the reaction tank 1 and the sealing cover 11, the sealing piston 12 being threadedly fitted onto the outside of the central threaded rod 13, a feeding port 111 for feeding material fixedly installed on the upper surface of the reaction tank 1, and a breather valve 113 for balancing the internal air pressure of the reaction tank 1 fixedly installed on the sealing cover 11.

[0019] In actual use, the device first adds bottom water to the inside of the reaction tank 1 through the feed port 111, then heats the reaction tank 1 to heat the bottom water to about 40 degrees Celsius, and then adds cobalt sulfate solution to the inside of the reaction tank 1 through the feed port 111. When adding cobalt sulfate solution, the drive device 6 will drive the central threaded rod 13 to rotate, and the sealing piston 12 will be driven to rise. At this time, the solution above the sealing piston 12 will flow to the bottom of the sealing piston 12 through the connecting groove 121. When the sealing piston 12 rises to its maximum position, the drive device 6 drives the central threaded rod 13 to reverse, and the sealing piston 12 is driven to descend. At this time, the liquid below the sealing piston 12 will be pushed back to the top of the sealing piston 12 through the connecting groove 121. Because the connecting groove 121 is spiral, the liquid will be driven to be sprayed out in a spiral shape when the sealing piston 12 rises and falls. The liquid flows up and down repeatedly to achieve a good stirring effect. In addition, the spiral spray can generate vortices when the liquid flows, which further increases the stirring effect and prevents uneven local heating and excessive acidity of local solutions. After cobalt sulfate is completely added and thoroughly stirred, a precipitant is slowly added through the feed port 111. The precipitant is used to convert the soluble cobalt ions in the solution into water-insoluble solid cobalt salts that precipitate out. During this process, the sealing piston 12 repeatedly rises and falls to achieve a stirring effect, preventing the cobalt salts generated by the reaction from forming large clumps of gel, breaking the cobalt salts into a uniform slurry, and improving the production quality of cobalt salts. The filter press component 2 includes a fixed outer shell 21, a filter press core cylinder 22 is fixedly installed inside the fixed outer shell 21, an outer filter press cylinder 23 is slidably installed inside the fixed outer shell 21, a liquid collection shell 24 is fixedly installed outside the outer filter press cylinder 23, an inlet pipe 4 is fixedly installed on one side of the liquid collection shell 24, a drain pipe 41 is fixedly installed on the side of the liquid collection shell 24 away from the inlet pipe 4, a first one-way valve 401 is fixedly installed on the inlet pipe 4, and a second one-way valve 411 is fixedly installed on the drain pipe 41.

[0020] After the reaction is complete, the sealing piston 12 rises to its maximum position, and then the connecting groove 121 closes. At this time, the sealing piston 12 is driven to descend by the central threaded rod 13. Because the connecting groove 121 is closed, the descent of the sealing piston 12 can push the slurry formed inside the reaction tank 1 after the reaction is completed into the interior of the filter press component 2. When the sealing piston 12 descends, all the slurry enters the filter press component 2 from the interior of the reaction tank 1. A large amount of water in the slurry will be filtered by the filter press component 2 and then discharged outside the device through the second one-way valve 411 and the drain pipe 41. After all the slurry inside the reaction tank 1 enters the filter press component 2, the sealing piston 12 will rise again. During this process, the filter press component 2 will filter the slurry inside. Since the connecting groove 121 is closed, a negative pressure will be generated below the sealing piston 12 when it rises again. The inlet pipe 4 is connected to the external water tank. The negative pressure will draw the deionized water inside the water tank through the inlet pipe 4 and the first one-way valve 401. During the drawing process, the deionized water will pass through the filter press component 2, and the deionized water will clean the filter cake inside the filter press component 2. To ensure the cleaning effect, the sealing piston 12 can be repeatedly raised and lowered to repeatedly clean the cobalt salt filter cake. During the cleaning process, the deionized water will pass through the filter press 2 and re-enter the reaction tank 1, which can also rinse the residual slurry on the inner wall of the reaction tank 1 and reduce the residue. After the cleaning is completed, the sealing piston 12 will descend and push the cleaned water through the filter press 2 and then discharge it from the drain pipe 41. This not only can the filter press 2 and the reaction tank 1 be thoroughly cleaned, but also the residual slurry can be recovered, reducing the waste rate.

[0021] A bottom straight cylinder 221 is fixedly installed at the lower end of the filter cartridge 22. Multiple evenly distributed filter plates 232 are detachably installed at the lower end of the filter outer cylinder 23. An inclined cylinder 233 is fixedly installed at the bottom end of the filter outer cylinder 23. The multiple filter plates 232 are all located inside the liquid collection shell 24. The filter outer cylinder 23 and the fixed shell 21 are sealed together. The inclined cylinder 233 and the bottom straight cylinder 221 are slidably sealed together. The inner diameter of the filter outer cylinder 23 gradually decreases from top to bottom. The outer diameter of the filter cartridge 22 gradually decreases from top to bottom. The inner diameter of the inclined cylinder 233 gradually decreases from top to bottom. The inclination angle inside the inclined cylinder 233 is greater than the inclination angle inside the filter outer cylinder 23. A locking component 5 is fixedly installed on the fixed shell 21. A forming layer 212 is formed between the filter outer cylinder 23 and the filter cartridge 22. A filter chamber 211 is formed between the filter outer cylinder 23 and the fixed shell 21.

[0022] During discharge, the outer filter cylinder 23 descends to the first position, and the slurry fills the filter chamber 211 and the forming layer 212. At this time, the inclined cylinder 233 is located at the bottom of the straight cylinder 221. The scraper 231 and the forming layer 212 are in a relatively sealed state. Under the pressure of the sealing piston 12, the excess liquid will be filtered through the filter plate 232 and discharged outside the device. At this time, the slurry becomes more viscous. When the sealing piston 12 rises, it will drive the outer filter cylinder 23 to rise synchronously. At this time, the outer filter cylinder 23 will filter the high-concentration slurry inside the forming layer 212. At the same time, the reaction tank 1 will draw deionized water through the liquid inlet pipe 4 to clean the filter cake formed by the filter. Then, the cleaned wastewater is discharged by the descending sealing piston 12. The repeated operation of the sealing piston 12 can improve the cleanliness. The filter cartridge 22 has a connecting groove 222, and a liquid outlet pipe 223 is fixedly installed inside the connecting groove 222. The liquid outlet pipe 223 is used to connect the reaction tank 1 and the forming layer 212. Multiple uniformly distributed scraper plates 231 are fixedly installed on the inner ring of the filter outer cylinder 23. The surface roughness of the outer surface of the filter cartridge 22 is greater than the surface roughness of the inner surface of the filter outer cylinder 23.

[0023] When cleaning is complete, first disconnect the inlet pipe 4 from the external water tank. Then, the sealing piston 12 rises, driving the outer filter cylinder 23 to perform filter pressing. At this time, since the inlet pipe 4 is not connected to the water tank, it can be connected to the drying gas. The rising sealing piston 12 will then draw in dry air to perform preliminary drying of the filter cake. When the sealing piston 12 descends again, the locking component 5 is opened. The descending sealing piston 12 will then drive the outer filter cylinder 23 into the third position. At this time, the inclined cylinder 233 descends to its lowest point, disengaging from the bottom straight cylinder 221. The lower part of the inclined cylinder 233 is... In the open state, because the outer surface roughness of the filter cylinder 22 is greater than the inner surface roughness of the outer filter cylinder 23, the filter cake will stick to the outer surface of the filter cylinder 22. When the outer filter cylinder 23 descends, it will drive the scraper 231 to descend, creating a gap between the scraper 231 and the filter cylinder 22, thereby pulling and removing the filter cake on the filter cylinder 22. The inner surface of the outer filter cylinder 23 is relatively smooth, so the removed filter cake will fall onto the surface of the outer filter cylinder 23 and slide to the outside of the outer filter cylinder 23. A conveyor belt can be set below the outer filter cylinder 23 to transport the filter cake.

[0024] A sealing ring 122 for sealing is fixedly installed on the sealing piston 12. A first guide rod 14 is fixedly installed inside the reaction vessel 1. The sealing piston 12 is slidably sleeved on the outside of the first guide rod 14. A rotating ring 16 is rotatably installed on the upper surface of the sealing piston 12. A plurality of sealing plates 161 corresponding to the communicating groove 121 are fixedly installed on the rotating ring 16. A second guide rod 15 is rotatably connected between the reaction vessel 1 and the sealing cover 11. An adjusting handle 152 is fixedly installed at the top of the second guide rod 15. The adjusting handle 152 is located above the sealing cover 11. A rotating lever 151 is slidably installed on the second guide rod 15. A control linkage 162 is rotatably connected between the sealing plate 161 and the rotating lever 151.

[0025] The sealing ring 122 is used to increase the sealing performance of the sealing piston 12 when it rises and falls. When it is necessary to control the closing of the connecting groove 121, simply rotate the adjusting handle 152. The adjusting handle 152 drives the second guide rod 15 to rotate. The rotation of the second guide rod 15 will drive the rotating lever 151 to rotate. In turn, the rotating lever 151 will drive the sealing plate 161 and the rotating ring 16 to rotate through the control link 162. When the rotating ring 16 rotates to the maximum position, the sealing plate 161 will close the connecting groove 121, thereby realizing the closing and opening of the sealing piston 12.

[0026] A mating component 3 is fixedly installed on the upper part of the outer side of the reaction vessel 1. The mating component 3 includes a central threaded cylinder 31. A movable mating plate 32 is sleeved on the outside of the central threaded cylinder 31. Multiple evenly distributed connecting slide rods 311 are fixedly installed on the movable mating plate 32. The multiple connecting slide rods 311 are all fixedly installed on the outer cylinder 23 of the filter press. A mating toothed ring 33 is fitted on the outer ring of the central threaded cylinder 31 through threaded engagement. A lifting plate 34 is rotatably installed below the mating toothed ring 33. A limiting mechanism 35 is connected between the lifting plate 34 and the movable mating plate 32. The limiting mechanism 35 is composed of a spring and a guide rod. The guide rod is located at the center of the spring and is fixedly installed on the movable mating plate 32. The guide rod slides through the lifting plate 34. The locking component 5 includes a fixed plate 51. A movable handle 52 is slidably installed on the fixed plate 51. A limiting rod 53 is fixedly installed on the movable handle 52 and extends to the bottom of the movable mating plate 32.

[0027] When the toothed ring 33 rotates, it will rise and fall along the thread on the central threaded cylinder 31. When the lifting plate 34 falls, it will drive the limiting mechanism 35 and the moving mating plate 32 to fall synchronously. When the locking component 5 is in the closed state, the limiting rod 53 is located below the moving mating plate 32. At this time, the toothed ring 33 will drive the moving mating plate 32 to fall, but it will be blocked by the limiting rod 53. At this time, the corresponding filter outer cylinder 23 is in the first position, and the toothed ring 33 and the lifting plate 34 will continue to fall, and the limiting mechanism 35 will be compressed. When the sliding handle 52 moves the limiting rod 53 out from under the moving mating plate 32, the locking component 5 is in the open state. The moving mating plate 32 will not be blocked by the limiting rod 53, and can be pushed to the maximum position by the lifting plate 34 and the limiting mechanism 35. At this time, the filter press outer cylinder 23 is in the second position, i.e. the unloading position.

[0028] A second transmission wheel 112 is rotatably mounted on the upper surface of the sealing cover 11. The second transmission wheel 112 is fixedly connected to the end of the central threaded rod 13. A mating gear 36 is rotatably mounted on the lifting plate 34. The mating gear 36 meshes with the outer ring of the mating gear ring 33. A first transmission wheel 61 is fixedly mounted on the driving end of the driving device 6. The first transmission wheel 61 and the second transmission wheel 112 are connected by belt drive. A connecting sleeve 62 is fixedly mounted on the lower surface of the first transmission wheel 61. A central connecting rod 63 is slidably mounted on the lower end of the connecting sleeve 62. The central connecting rod 63 is fixedly mounted in the middle of the mating gear 36.

[0029] The second transmission wheel 112 is used to transmit the kinetic energy of the drive unit 6 to the central threaded rod 13. The connecting sleeve 62 is slidably sleeved on the outside of the central connecting rod 63, so that the mating gear 36 can be well driven when the lifting plate 34 rises and falls. The drive unit 6 is fixedly installed on the wall or bracket outside the device, and the fixed housing 21 is fixedly installed on the external bracket. A conveyor belt is set below the device to automatically collect the filter cake.

[0030] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. An integrated cobalt salt filtration and washing device, comprising a reaction vessel (1), characterized in that: A filter press component (2) is fixedly installed at the lower outer end of the reaction vessel (1). The filter press component (2) includes a fixed outer shell (21), a filter press core cylinder (22) is fixedly installed inside the fixed outer shell (21), and a filter press outer cylinder (23) is slidably installed inside the fixed outer shell (21). A bottom straight cylinder (221) is fixedly installed at the lower end of the filter press core cylinder (22), and an inclined cylinder (233) is fixedly installed at the bottom end of the filter press outer cylinder (23). The outer filter cylinder (23) is sealed to the fixed outer shell (21), and the inclined cylinder (233) is slidably sealed to the bottom straight cylinder (221). The inner diameter of the outer filter cylinder (23) gradually decreases from top to bottom, the outer diameter of the filter core cylinder (22) gradually decreases from top to bottom, the inner diameter of the inclined cylinder (233) gradually decreases from top to bottom, and the inclination angle inside the inclined cylinder (233) is greater than the inclination angle inside the outer filter cylinder (23).

2. The integrated cobalt salt filtration and washing device according to claim 1, characterized in that: The lower end of the filter press outer cylinder (23) is detachably equipped with multiple uniformly distributed filter plates (232). A forming layer (212) is formed between the filter press outer cylinder (23) and the filter press core cylinder (22). A filter press cavity (211) is formed between the filter press outer cylinder (23) and the fixed outer shell (21). A connecting groove (222) is provided on the filter press core cylinder (22). A liquid outlet pipe (223) is fixedly installed inside the connecting groove (222). The liquid outlet pipe (223) is used to connect the reaction tank (1) and the forming layer (212). Multiple uniformly distributed scraper plates (231) are fixedly installed on the inner ring of the filter press outer cylinder (23). The outer surface roughness of the filter press core cylinder (22) is greater than the inner surface roughness of the filter press outer cylinder (23).

3. The integrated cobalt salt filtration and washing device according to claim 2, characterized in that: The outer cylinder (23) of the filter press is fixedly installed with a liquid collection shell (24). Multiple filter plates (232) are located inside the liquid collection shell (24). A liquid inlet pipe (4) is fixedly installed on one side of the liquid collection shell (24). A liquid outlet pipe (41) is fixedly installed on the side of the liquid collection shell (24) away from the liquid inlet pipe (4). A first check valve (401) is fixedly installed on the liquid inlet pipe (4). A second check valve (411) is fixedly installed on the liquid outlet pipe (41).

4. The integrated cobalt salt filtration and washing device according to claim 3, characterized in that: A sealing cap (11) is fixedly installed at the top of the reaction vessel (1). A sealing piston (12) is slidably installed inside the reaction vessel (1). A central threaded rod (13) is rotatably connected between the reaction vessel (1) and the sealing cap (11). The sealing piston (12) is threadedly fitted onto the outside of the central threaded rod (13). A sealing ring (122) for sealing is fixedly installed on the sealing piston (12). A first guide rod (14) is fixedly installed inside the reaction vessel (1). The sealing piston (12) is slidably fitted onto the outside of the first guide rod (14).

5. The integrated cobalt salt filtration and washing device according to claim 4, characterized in that: The sealing piston (12) has a plurality of evenly distributed connecting grooves (121), the connecting grooves (121) are spiral in shape, and a rotating ring (16) is rotatably mounted on the upper surface of the sealing piston (12), and a plurality of sealing plates (161) corresponding to the connecting grooves (121) are fixedly mounted on the rotating ring (16).

6. The integrated cobalt salt filtration and washing device according to claim 5, characterized in that: A second guide rod (15) is rotatably connected between the reaction vessel (1) and the sealing cover (11). An adjustment handle (152) is fixedly installed at the top of the second guide rod (15). The adjustment handle (152) is located above the sealing cover (11). A rotating lever (151) is slidably installed on the second guide rod (15). A control link (162) is rotatably connected between the sealing plate (161) and the rotating lever (151).

7. The integrated cobalt salt filtration and washing device according to claim 6, characterized in that: The upper part of the reaction vessel (1) is fixedly installed with a mating component (3). The mating component (3) includes a central threaded cylinder (31). A movable mating plate (32) is sleeved on the outside of the central threaded cylinder (31). Multiple evenly distributed connecting slide rods (311) are fixedly installed on the movable mating plate (32). All of the multiple connecting slide rods (311) are fixedly installed on the outer cylinder (23) of the filter press.

8. The integrated cobalt salt filtration and washing device according to claim 7, characterized in that: The outer ring of the central threaded cylinder (31) is fitted with a toothed ring (33) through a threaded fit. A lifting plate (34) is rotatably installed below the toothed ring (33). A limiting mechanism (35) is connected between the lifting plate (34) and the movable mating plate (32). The limiting mechanism (35) is composed of a spring and a guide rod. The guide rod is located at the center of the spring and is fixedly installed on the movable mating plate (32). The guide rod slides through the lifting plate (34).

9. The integrated cobalt salt filtration and washing device according to claim 8, characterized in that: The upper surface of the reaction vessel (1) is fixedly equipped with a feeding port (111) for feeding materials. The upper surface of the sealing cover (11) is rotatably equipped with a second transmission wheel (112). The sealing cover (11) is fixedly equipped with a breather valve (113) for balancing the internal air pressure of the reaction vessel (1). The second transmission wheel (112) is fixedly connected to the end of the central threaded rod (13). The lifting plate (34) is rotatably equipped with a mating gear (36). The mating gear (36) meshes with the outer ring of the mating gear ring (33). A driving device (6) is provided above the sealing cover (11). The driving end of the driving device (6) is fixedly equipped with a first transmission wheel (61). The first transmission wheel (61) and the second transmission wheel (112) are connected by belt drive. The lower surface of the first transmission wheel (61) is fixedly equipped with a connecting sleeve (62). The lower end of the connecting sleeve (62) is slidably equipped with a central connecting rod (63). The central connecting rod (63) is fixedly installed in the middle of the mating gear (36).

10. The integrated cobalt salt filtration and washing device according to claim 9, characterized in that: A locking component (5) is fixedly installed on the fixed housing (21). The locking component (5) includes a fixed plate (51). A movable handle (52) is slidably installed on the fixed plate (51). A limit rod (53) is fixedly installed on the movable handle (52). The limit rod (53) extends to the bottom of the movable mating plate (32).

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