A precipitation treatment device for lithium carbonate preparation

Abstract

This invention relates to the field of lithium carbonate preparation technology, specifically to a precipitation treatment device for lithium carbonate preparation, comprising: a washing tank equipped with a feeding mechanism and a pretreatment mechanism; stirring mechanisms on both sides of the washing tank; and a filtration mechanism on the lower side of the washing tank. The feeding mechanism enables rapid feeding of lithium carbonate filter cake into the washing tank and stable removal of the washed high-purity lithium carbonate precipitate from the washing tank. The pretreatment mechanism enables rapid dispersion of the lithium carbonate filter cake and simultaneous rinsing. The combination of the pretreatment mechanism and the stirring mechanism ensures thorough mixing and washing of the lithium carbonate filter cake precipitate with the washing liquid, guaranteeing an effective overall washing of the lithium carbonate precipitate. Simultaneously, the filtration mechanism rapidly removes the washing liquid containing impurities from the lithium carbonate precipitate.

Description

Technical Field

[0001] This invention relates to the field of lithium carbonate preparation technology, specifically to a precipitation treatment device for lithium carbonate preparation. Background Technology

[0002] Lithium carbonate is an inorganic compound widely used in ceramics, glass, lithium batteries, pharmaceuticals, catalysts, and many other fields. It is a colorless monoclinic crystal or white powder, slightly soluble in water and dilute acids, but insoluble in ethanol and acetone. Lithium carbonate has lower thermal stability than other carbonates in the same group, but it does not readily absorb moisture from the air. In existing technologies, lithium carbonate filter cake precipitates prepared by brine utilization generally require washing, centrifugation, and drying to obtain the final lithium carbonate product. When washing the lithium carbonate filter cake precipitate, it is generally necessary to first redisperse the filter cake in the washing liquid, then stir the filter cake in the washing liquid to promote the desorption and dissolution of impurities within the filter cake, improving washing efficiency. Finally, the washed lithium carbonate filter cake precipitate is filtered out again. Repeating these steps multiple times yields a lithium carbonate precipitate with high purity.

[0003] However, traditional methods of washing lithium carbonate have the following problems: 1. Existing washing methods generally require dispersing the lithium carbonate filter cake before adding it to the washing solution. However, after dispersion, most of the lithium carbonate filter cake remains in lumps, which prevents impurities inside the filter cake from dissolving quickly into the washing solution. This results in a longer time required for subsequent stirring, dissolving, and washing, and also leads to low overall washing efficiency. 2. Existing washing methods generally require multiple sets of equipment to repeatedly disperse, add, stir, wash, filter, and precipitate the lithium carbonate filter cake. This operation method makes the overall washing process cumbersome and results in poor continuity and low efficiency. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a precipitation treatment device for lithium carbonate preparation, comprising a washing tank, a pressure relief valve provided on the upper surface of the washing tank, stirring mechanisms symmetrically arranged on both sides of the washing tank for stirring and mixing lithium carbonate filter cake precipitate and washing liquid, a filtration mechanism for filtering the washing liquid provided on the lower side of the washing tank, a feeding mechanism and a pretreatment mechanism provided on the washing tank, the pretreatment mechanism being located above the feeding mechanism, and a driving mechanism being located behind the pretreatment mechanism.

[0005] The feeding mechanism includes a feeding component, a supporting component, and a locking component; the feeding component is provided on the front side of the washing tank, the supporting component is provided on the rear side of the feeding component, and the locking components are symmetrically provided on both sides of the washing tank.

[0006] The pretreatment mechanism includes a movable frame, a rinsing assembly, and a dispersing assembly; the movable frame is slidably arranged inside the washing tank, and the rinsing assembly and the dispersing assembly are arranged on the movable frame.

[0007] The drive mechanism includes a drive frame, a drive assembly, a telescopic linkage assembly, a reciprocating linkage assembly, and a lifting transmission assembly; the drive frame is fixedly installed in the middle of the rear surface of the washing tank, the drive assembly is installed at the rear end of the drive frame, the telescopic linkage assembly is installed at the front side of the drive assembly, the reciprocating linkage assembly is installed at the rear side of the drive assembly, and the lifting transmission assembly is installed at the lower side of the reciprocating linkage assembly.

[0008] Preferably, the stirring mechanism includes a stirring chamber, a stirring paddle, and a second motor; the stirring chamber is fixedly disposed on the side surface of the washing tank, the stirring paddle is rotatably disposed inside the stirring chamber, and the second motor is fixedly disposed on the upper surface of the stirring chamber, with the drive end of the second motor fixedly connected to the stirring paddle.

[0009] The filtration mechanism includes a filtration chamber, a cylinder rod, a piston plate, and a liquid guide pipe; the filtration chamber is fixedly installed on the lower surface of the washing tank, the cylinder rod is fixedly installed on the lower surface of the filtration chamber, the piston plate is fixedly installed on the telescopic end of the cylinder rod, and the liquid guide pipe is fixedly installed on the front side of the filtration chamber.

[0010] Preferably, the feeding assembly includes a feeding port, a sealing plate, a first spring rod, and a pressure plate; the front surface of the washing tank is provided with a feeding port, a sealing plate is slidably provided on the front side of the feeding port, a sealing ring is fixedly provided on the outer ring of the rear surface of the sealing plate, a first spring rod is fixedly provided at each of the four corners of the front surface of the sealing plate, a pressure plate is elastically slidably provided on the front side of the sealing plate and slidably connected to the first spring rod, and a handle is fixedly provided on the front surface of the pressure plate.

[0011] The support assembly includes a support frame, a filter frame, and a filter cloth; the rear surface of the sealing plate is fixedly provided with a support frame via a plate component, the filter frame is hooked inside the support frame, and the filter cloth is fixedly provided inside the filter frame.

[0012] Preferably, the locking assembly includes a slide block, a positioning hole, a sliding rod, an insertion hole, and a pin; the slide block is fixedly provided on the side surface of the washing tank, the positioning hole is provided on the side of the slide block away from the center of the washing tank, the sliding rod is slidably provided in the slide block, the front end of the sliding rod is fixedly connected to the rear surface of the pressure plate, the insertion hole is provided on the surface of the sliding rod, and a pin is inserted into both the insertion hole and the positioning hole.

[0013] Preferably, the rinsing assembly includes a first central pipe, rinsing heads, and a first sliding pipe; the first central pipe is fixedly disposed on the rear side of the lower surface of the movable frame, a plurality of rinsing heads are uniformly fixedly disposed on the lower surface of the first central pipe, and the first sliding pipe, which is slidably connected to the washing tank, is symmetrically disposed on the left and right sides of the rear side of the first central pipe, and the first sliding pipe is fixedly connected to the first central pipe and the movable frame through an L-shaped pipe at the front end.

[0014] Preferably, the dispersing assembly includes a second concentrator, a second slide tube, a connecting plate, high-pressure nozzles, lifting tubes, and driven shafts; the second concentrator is fixedly installed on the front side of the upper surface of the movable frame, and the second slide tubes, which are symmetrically fixedly installed on the rear side of the second concentrator and slidably connected to the washing tank, are fixedly connected to the rear end of the first slide tube through the connecting plate, and a plurality of high-pressure nozzles are evenly fixedly installed on the lower surface of the second concentrator. Lifting tubes are slidably installed on the surface of each high-pressure nozzle, and the lifting tubes are fixedly connected to each other through a plate. A driven shaft is fixedly installed on the side of the lifting tube surface at both ends of the second concentrator away from the center of the second concentrator.

[0015] Preferably, the drive assembly includes a first motor, a first half gear, and a second half gear; the first motor is fixedly mounted on the upper surface of the drive frame, the first half gear is fixedly mounted on the drive end of the first motor, the second half gear is fixedly mounted on the lower surface of the first half gear via a rod, and the surface of the second half gear is fixedly provided with two sets of symmetrically distributed teeth with the same number of teeth.

[0016] Preferably, the telescopic linkage assembly includes a first gear, a first bevel gear, a fixed frame, a threaded sleeve, a second bevel gear, and a threaded rod; the first gear, which meshes with the first half gear, is rotatably mounted on the drive frame; the first bevel gear is fixedly mounted on the upper surface of the first gear via a second rod; the fixed frame is fixedly mounted on the upper side of the rear surface of the washing tank; the threaded sleeve is rotatably mounted on the rear end of the fixed frame; the second bevel gear, which meshes with the first bevel gear, is fixedly mounted on the rear side of the threaded sleeve; the threaded rod is internally threaded to the threaded sleeve; and the front end of the threaded rod is fixedly connected to the rear surface of the connecting plate.

[0017] Preferably, the reciprocating linkage assembly includes a spring clip, a gear section, and a linkage section; the rear end of the upper surface of the drive frame is fixedly provided with a spring clip via a plate three-piece set; the front side of the spring clip is provided with a gear section that cooperates with the drive assembly for transmission; the lower side of the gear section is provided with a linkage section that cooperates with the lifting transmission assembly for transmission. The gear section includes a second gear, a locking plate, a locking groove, a drive rotating plate, and a drive shaft; a second gear that meshes with the first half gear is rotatably provided on the drive frame; a locking plate is fixedly provided on the upper surface of the second gear; the surface of the locking plate has a locking groove that cooperates with the spring clip for locking; the lower surface of the second gear is fixedly provided with a drive rotating plate via a rod three-piece set; and the lower surface of the drive rotating plate is eccentrically fixedly provided with a drive shaft.

[0018] The linkage includes a T-shaped slide plate, a straight groove, a drive sleeve, a third gear, a drive groove, a lifting rod, and a sliding shaft. A T-shaped slide plate is slidably mounted on the lower side of the drive plate. A plate component four, slidably connected to the drive frame, is fixedly mounted at the rear end of the T-shaped slide plate. A straight groove, slidably engaging with the drive shaft, is opened at the rear end of the upper surface of the T-shaped slide plate. A drive sleeve is rotatably mounted at the front end of the T-shaped slide plate. A third gear, meshing with the second half gear, is fixedly mounted at the upper end of the drive sleeve. A drive groove, composed of a V-shaped inclined groove and an annular groove, is opened on the inner surface of the drive sleeve. A lifting rod, slidably connected to the front end of the T-shaped slide plate, is slidably mounted inside the drive sleeve. A sliding shaft, slidably engaging with the drive groove, is fixedly mounted on the upper side of the surface of the lifting rod.

[0019] Preferably, the lifting transmission assembly includes a connecting plate, a driven plate, a docking hole, a connecting rod, a transmission plate, an inclined groove, and a second spring rod; the lower side of the drive frame is provided with a connecting plate that moves back and forth, the lower surface of the connecting plate is fixedly provided with a driven plate, the surface of the driven plate is evenly provided with a plurality of docking holes that engage with the lifting rod, the front surface of the connecting plate is symmetrically provided with a connecting rod that slides through the washing tank, the front end of each connecting rod is fixedly provided with a transmission plate, the surface of the transmission plate is provided with an inclined groove that slides through the driven shaft, the upper end of the transmission plate is elastically slidably provided with a second spring rod, and the rear end of the second spring rod is fixedly connected to the moving frame through a plate five.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The present invention can quickly feed lithium carbonate filter cake into the washing tank through the feeding mechanism, and can also stably remove the high-purity lithium carbonate precipitate after washing from the washing tank. This operation method can ensure the efficiency and stability of lithium carbonate precipitate feeding and unloading.

[0022] 2. This invention rapidly disperses the lithium carbonate filter cake through a pretreatment mechanism and simultaneously rinses and washes the impurities adsorbed inside the lithium carbonate filter cake precipitate, thereby improving the overall washing effect of the lithium carbonate precipitate and shortening the subsequent stirring, dispersing, and washing time of the lithium carbonate filter cake precipitate, thus greatly improving the washing efficiency of the lithium carbonate precipitate.

[0023] 3. This invention, through the cooperation of a pretreatment mechanism and a stirring mechanism, can fully mix and wash the lithium carbonate filter cake precipitate with the washing liquid, thereby ensuring the overall washing effect on the lithium carbonate precipitate. At the same time, the suction filtration mechanism can quickly extract the washing liquid containing impurities from the lithium carbonate precipitate, thereby improving the filtration efficiency of the lithium carbonate precipitate. Furthermore, the filtered lithium carbonate precipitate will be reformed into a filter cake again, allowing the pretreatment mechanism and stirring mechanism to repeatedly wash it. This operation method greatly improves the overall continuity and efficiency of the lithium carbonate washing process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0026] Figure 3 This is a side cross-sectional view of the structure of the present invention.

[0027] Figure 4 This is a schematic diagram of the feeding mechanism.

[0028] Figure 5 This is a schematic diagram of the pretreatment and mixing mechanisms.

[0029] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.

[0030] Figure 7 This is a schematic diagram of the pretreatment mechanism and the drive mechanism.

[0031] Figure 8 This is a schematic diagram of the drive mechanism.

[0032] Figure 9 for Figure 8 Enlarged structural diagram at point C.

[0033] In the diagram: 1. Washing tank; 2. Feeding mechanism; 21. Feeding assembly; 211. Feeding port; 212. Sealing plate; 213. First spring rod; 214. Pressure plate; 22. Support assembly; 221. Support frame; 222. Filter frame; 223. Filter cloth; 23. Locking assembly; 231. Slide seat; 232. Positioning hole; 233. Sliding rod; 234. Insertion hole; 235. Pin; 3. Pretreatment mechanism; 31. Moving frame; 32. Rinsing assembly; 321. 322. First central pipe; 323. Shower head; 324. First sliding pipe; 33. Dispersing assembly; 335. Second central pipe; 336. Second sliding pipe; 337. Connecting plate; 338. High-pressure nozzle; 339. Lifting pipe; 330. Driven shaft; 4. Drive mechanism; 41. Drive frame; 42. Drive assembly; 421. First motor; 422. First half gear; 423. Second half gear; 43. Telescopic linkage assembly; 431. First gear; 432. First... 433. Bevel gear; 434. Fixing bracket; 435. Threaded sleeve; 436. Second bevel gear; 437. Threaded rod; 44. Reciprocating linkage assembly; 441. Spring clip; 442. Gear section; 4421. Second gear; 4422. Snap-fit ​​plate; 4423. Snap-fit ​​groove; 4424. Drive rotating plate; 4425. Drive shaft; 443. Linkage part; 4431. T-shaped slide plate; 4432. Straight groove; 4433. Drive sleeve; 4434. Third gear; 4 435. Drive slot; 4436. Lifting rod; 4437. Sliding shaft; 45. Lifting transmission assembly; 451. Connecting plate; 452. Driven plate; 453. Docking hole; 454. Connecting rod; 455. Transmission plate; 456. Inclined slot; 457. Second spring rod; 5. Stirring mechanism; 51. Stirring chamber; 52. Stirring paddle; 53. Second motor; 6. Filtration mechanism; 61. Filtration chamber; 62. Cylinder rod; 63. Piston plate; 64. Liquid guide pipe. Detailed Implementation

[0034] 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.

[0035] Please see Figure 1 and Figure 3A precipitation treatment device for lithium carbonate preparation includes a washing tank 1, a feeding mechanism 2, a pretreatment mechanism 3, a driving mechanism 4, a stirring mechanism 5, and a filtration mechanism 6. A pressure relief valve is provided on the upper surface of the washing tank 1. The stirring mechanisms 5 are symmetrically arranged on both sides of the washing tank 1. The filtration mechanism 6 is provided on the lower side of the washing tank 1. The feeding mechanism 2 and the pretreatment mechanism 3 are provided on the washing tank 1. The pretreatment mechanism 3 is located on the upper side of the feeding mechanism 2. The driving mechanism 4 is provided on the rear side of the pretreatment mechanism 3.

[0036] Please see Figure 1 and Figure 3 The feeding mechanism 2 includes a feeding component 21, a supporting component 22, and a locking component 23; the feeding component 21 is provided on the front side of the washing tank 1, the supporting component 22 is provided on the rear side of the feeding component 21, and the locking components 23 are symmetrically provided on both sides of the washing tank 1.

[0037] Please see Figure 1 , Figure 3 and Figure 4 The feeding assembly 21 includes a feeding port 211, a sealing plate 212, a first spring rod 213, and a pressure plate 214. The front surface of the washing tank 1 is provided with a feeding port 211. A sealing plate 212 is slidably provided on the front side of the feeding port 211. A sealing ring is fixedly provided on the outer ring of the rear surface of the sealing plate 212. A first spring rod 213 is fixedly provided at each of the four corners of the front surface of the sealing plate 212. A pressure plate 214 is elastically slidably provided on the front side of the sealing plate 212 and slidably connected to the first spring rod 213. A handle is fixedly provided on the front surface of the pressure plate 214.

[0038] Please see Figure 3 and Figure 4 The support assembly 22 includes a support frame 221, a filter frame 222, and a filter cloth 223; the rear surface of the sealing plate 212 is fixedly provided with the support frame 221 by a plate component, the filter frame 222 is hooked inside the support frame 221, and the filter cloth 223 is fixedly provided inside the filter frame 222.

[0039] Please see Figure 1 , Figure 2 and Figure 4 The locking assembly 23 includes a slide block 231, a positioning hole 232, a sliding rod 233, an insertion hole 234, and a pin 235. The slide block 231 is fixedly provided on the side surface of the washing tank 1. The positioning hole 232 is provided on the side of the slide block 231 away from the center of the washing tank 1. The sliding rod 233 is slidably provided in the slide block 231. The front end of the sliding rod 233 is fixedly connected to the rear surface of the pressure plate 214. The insertion hole 234 is provided on the surface of the sliding rod 233. The pin 235 is inserted into both the insertion hole 234 and the positioning hole 232.

[0040] When feeding lithium carbonate filter cake into the washing tank 1, first lay the lithium carbonate filter cake to be washed on the filter cloth 223, then hook the filter frame 222 into the support frame 221, and then push the filter frame 222 and the lithium carbonate filter cake into the washing tank 1 through the handle on the pressure plate 214 until the insertion hole 234 is aligned with the positioning hole 232. Insert the pin 235 into the insertion hole 234 and the positioning hole 232 to fix the pressure plate 214. At this time, under the action of the first spring rod 213, the sealing plate 212 can stably seal the feeding port 211 through the sealing rubber ring. This feeding method is simple to operate and convenient to unload. At the same time, it can ensure the sealing of the washing tank 1 during the washing of lithium carbonate filter cake, thereby ensuring the stability and efficiency of the filtration mechanism 6 in filtering the washing liquid.

[0041] Please see Figure 3 , Figure 5 and Figure 7 The pretreatment mechanism 3 includes a movable frame 31, a rinsing assembly 32, and a dispersing assembly 33; the movable frame 31 is slidably arranged inside the washing tank 1, and the rinsing assembly 32 and the dispersing assembly 33 are arranged on the movable frame 31.

[0042] Please see Figure 7 The rinsing assembly 32 includes a first central pipe 321, rinsing heads 322, and a first sliding pipe 323. The first central pipe 321 is fixedly installed on the rear side of the lower surface of the movable frame 31. A plurality of rinsing heads 322 are evenly fixedly installed on the lower surface of the first central pipe 321. The first sliding pipe 323, which is slidably connected to the washing tank 1, is symmetrically installed on the left and right sides of the rear side of the first central pipe 321. The first sliding pipe 323 is fixedly connected to the first central pipe 321 and the movable frame 31 through an L-shaped pipe at its front end.

[0043] Please see Figure 5 and Figure 6 The dispersing component 33 includes a second concentrator 331, a second slide tube 332, a connecting plate 333, a high-pressure nozzle 334, a lifting tube 335, and a driven shaft 336. The second concentrator 331 is fixedly installed on the front side of the upper surface of the movable frame 31. The second slide tube 332, which is slidably connected to the washing tank 1, is symmetrically installed on the rear side of the second concentrator 331. The rear end of the second slide tube 332 is fixedly connected to the rear end of the first slide tube 323 through the connecting plate 333. Multiple high-pressure nozzles 334 are evenly fixedly installed on the lower surface of the second concentrator 331. The lifting tubes 335 are slidably installed on the surface of each high-pressure nozzle 334. The lifting tubes 335 are fixedly connected to each other through a plate. The driven shaft 336 is fixedly installed on the side of the lifting tube 335 at both ends of the second concentrator 331 away from the center of the second concentrator 331.

[0044] When the blocky lithium carbonate filter cake laid on the filter cloth 223 needs to be broken up and rinsed, low-pressure washing liquid for rinsing is first introduced into the first concentrator 321 through the first sliding pipe 323, and high-pressure washing liquid for breaking up is simultaneously introduced into the second concentrator 331 through the second sliding pipe 332. Then, the connecting plate 333 is intermittently driven forward by the drive mechanism 4, so that the moving frame 31 drives the rinsing head 322 and the high-pressure nozzle 334 to move forward intermittently by a specific distance. The high-pressure nozzle 334 can break up the lithium carbonate filter cake on the filter cloth 223 by spraying high-pressure washing liquid. When the moving frame 31 stops moving, the drive mechanism 4 drives the driven shaft 336 to move downwards a specific distance and then move upwards to reset, so as to drive the lifting pipe 335 to move up and down synchronously. During the process of the lifting pipe 335 moving downwards to a specific position, the lifting pipe 335 guides the high-pressure washing liquid. The washing liquid thoroughly breaks down and penetrates the lumpy lithium carbonate filter cake, ensuring that the washing liquid can fully dissolve the impurities inside the lithium carbonate filter cake. This breaking down method is applicable to lithium carbonate filter cakes of different weights and thicknesses. The washing liquid flowing out through the rinsing head 322 can thoroughly rinse the surface and interior of the lithium carbonate filter cake. After the high-pressure nozzle 334 and the rinsing head 322 are driven by the drive mechanism 4 to continuously move back and forth to repeatedly break down and rinse the lithium carbonate filter cake, the washing liquid in the washing tank 1 will completely submerge the lithium carbonate precipitate. Then, the stirring mechanism 5 can be used to further stir and wash the lithium carbonate precipitate. This operation method can rinse and wash the impurities adsorbed inside the lithium carbonate filter cake precipitate, improving the overall washing effect of the lithium carbonate precipitate, while shortening the subsequent stirring, breaking down, and washing time of the lithium carbonate filter cake precipitate, thus greatly improving the washing efficiency of the lithium carbonate precipitate.

[0045] Please see Figure 7 The drive mechanism 4 includes a drive frame 41, a drive assembly 42, a telescopic linkage assembly 43, a reciprocating linkage assembly 44, and a lifting transmission assembly 45. The drive frame 41 is fixedly installed in the middle of the rear surface of the washing tank 1. The drive assembly 42 is installed at the rear end of the drive frame 41. The telescopic linkage assembly 43 is installed at the front side of the drive assembly 42. The reciprocating linkage assembly 44 is installed at the rear side of the drive assembly 42. The lifting transmission assembly 45 is installed at the lower side of the reciprocating linkage assembly 44.

[0046] Please see Figure 8 The drive assembly 42 includes a first motor 421, a first half gear 422, and a second half gear 423. The first motor 421 is fixedly mounted on the upper surface of the drive frame 41. The first half gear 422 is fixedly mounted on the drive end of the first motor 421. The second half gear 423 is fixedly mounted on the lower surface of the first half gear 422 via a rod. The surface of the second half gear 423 is fixedly provided with two sets of symmetrically distributed teeth with the same number of teeth.

[0047] Please see Figure 7 and Figure 8 The telescopic linkage assembly 43 includes a first gear 431, a first bevel gear 432, a fixed frame 433, a threaded sleeve 434, a second bevel gear 435, and a threaded rod 436. The first gear 431, which meshes with the first half gear 422, is rotatably mounted on the drive frame 41. The first bevel gear 432 is fixedly mounted on the upper surface of the first gear 431 by a rod. The fixed frame 433 is fixedly mounted on the upper side of the rear surface of the washing tank 1. The threaded sleeve 434 is rotatably mounted on the rear end of the fixed frame 433. The second bevel gear 435, which meshes with the first bevel gear 432, is fixedly mounted on the rear side of the threaded sleeve 434. The threaded rod 436 is internally threaded to the threaded sleeve 434. The front end of the threaded rod 436 is fixedly connected to the rear surface of the connecting plate 333.

[0048] When the moving frame 31 is to be driven to move forward intermittently a specific distance, the first motor 421 drives the first half gear 422 to rotate continuously in one direction. The first half gear 422 can drive the first bevel gear 432 to rotate intermittently by intermittently meshing with the first gear 431. The first bevel gear 432 then drives the second bevel gear 435 and the threaded sleeve 434 to rotate intermittently by meshing with the second bevel gear 435. The threaded sleeve 434 then drives the connecting plate 333 to move forward intermittently by spirally driving the threaded rod 436. This causes the moving frame 31, the rinsing head 322, and the high-pressure nozzle 334 to move forward intermittently a specific distance. This driving method can ensure the stability and accuracy of the movement of the rinsing head 322 and the high-pressure nozzle 334, thereby ensuring the stability and efficiency of the rinsing head 322 and the high-pressure nozzle 334 in breaking up and rinsing the lithium carbonate filter cake.

[0049] Please see Figure 7 The reciprocating linkage assembly 44 includes a spring clip 441, a gear part 442, and a linkage part 443; the rear end of the upper surface of the drive frame 41 is fixedly provided with a spring clip 441 by a plate part; the front side of the spring clip 441 is provided with a gear part 442 that cooperates with the drive assembly 42 for transmission; the lower side of the gear part 442 is provided with a linkage part 443 that cooperates with the lifting transmission assembly 45 for transmission.

[0050] Please see Figure 8The gear section 442 includes a second gear 4421, a snap-fit ​​plate 4422, a snap-fit ​​groove 4423, a drive rotating plate 4424, and a drive shaft 4425. The second gear 4421, which meshes with the first half gear 422, is rotatably mounted on the drive frame 41. The snap-fit ​​plate 4422 is fixedly mounted on the upper surface of the second gear 4421. The snap-fit ​​groove 4423 is formed on the surface of the snap-fit ​​plate 4422 and engages with the spring snap-fit ​​member 441. The drive rotating plate 4424 is fixedly mounted on the lower surface of the second gear 4421 by a rod. The drive shaft 4425 is eccentrically fixed on the lower surface of the drive rotating plate 4424.

[0051] Please see Figure 8 and Figure 9 The linkage 443 includes a T-shaped slide plate 4431, a straight groove 4432, a drive sleeve 4433, a third gear 4434, a drive groove 4435, a lifting rod 4436, and a sliding shaft 4437; the T-shaped slide plate 4431 is slidably disposed on the lower side of the drive rotating plate 4424, and a plate four that is slidably connected to the drive frame 41 is fixedly disposed at the rear end of the T-shaped slide plate 4431; a straight groove 4432 that slidably engages with the drive shaft 4425 is opened at the rear end of the upper surface of the T-shaped slide plate 4431. A drive sleeve 4433 is rotatably provided at the front end. A third gear 4434 that meshes with the second half gear 423 is fixedly provided at the upper end of the drive sleeve 4433. A drive groove 4435 is provided on the inner surface of the drive sleeve 4433. The drive groove 4435 is composed of a V-shaped inclined groove and an annular groove. A lifting rod 4436 that is slidably connected to the front end of the T-shaped slide plate 4431 is slidably provided inside the drive sleeve 4433. A sliding shaft 4437 that slidably engages with the drive groove 4435 is fixedly provided on the upper side of the surface of the lifting rod 4436.

[0052] When the T-shaped slide plate 4431 is to be moved back and forth intermittently, the first motor 421 drives the first half gear 422 to rotate continuously in one direction. The first half gear 422 can intermittently mesh with the second gear 4421 to drive the drive plate 4424 to rotate one revolution intermittently. At this time, the first half gear 422 has completely disengaged from the first gear 431. The drive plate 4424 then drives the T-shaped slide plate 4431 to move forward a certain distance and then move backward to reset through the drive shaft 4425 and the linear groove 4432. When the second gear 4421 rotates one revolution under the drive of the first half gear 422, the spring clip 441 is just engaged with the locking groove 4423, so that the second gear 4421 cannot rotate without the action of external drive, so that the T-shaped slide plate 4431 can be stably positioned after reciprocating back and forth.

[0053] When the first half gear 422, which rotates continuously in one direction, is about to mesh with the first gear 431, one set of teeth on the synchronously rotating second half gear 423 will first mesh with the third gear 4434 for transmission. The drive sleeve 4433 will then rotate and drive the sliding shaft 4437 and the lifting rod 4436 upward through the drive groove 4435. When the lifting rod 4436 moves upward a certain distance, the first half gear 422 meshes with the first gear 431 for transmission and drives the moving frame 31 forward, while the set of teeth on the second half gear 423 disengages from the third gear 4434. At this time, the drive sleeve 4433 rotates half a turn synchronously with the third gear 4434. When the first half gear 422 is about to mesh with the first gear 431, one set of teeth on the synchronously rotating second half gear 423 will first mesh with the third gear 4434 for transmission. When the first gear 431 is disengaged, another set of teeth on the second half gear 423 meshes with the third gear 4434, and the drive sleeve 4433 drives the lifting rod 4436 to move downward. When the first half gear 422 is about to mesh with the second gear 4421, the first half gear 422 has completely disengaged from the first gear 431, and at the same time, the second half gear 423 has also completely disengaged from the third gear 4434. The drive sleeve 4433 rotates half a turn synchronously with the third gear 4434 again, and at this time the lifting rod 4436 has moved to the lowest point. The first half gear 422 can then drive the T-shaped slide plate 4431 to move back and forth through meshing with the second gear 4421.

[0054] When the moving frame 31 moves to the front end under the drive of the first motor 421, the first motor 421 can be rotated in reverse to drive the washing head 322 and the high-pressure nozzle 334 to move in the opposite direction to break up and wash the lithium carbonate filter cake. By controlling the forward and reverse rotation of the first motor 421, the washing head 322 and the high-pressure nozzle 334 can repeatedly break up and wash the lithium carbonate filter cake until the washing liquid completely submerges the lithium carbonate precipitate. This operation method greatly improves the overall continuity and efficiency of the lithium carbonate washing process.

[0055] Please see Figure 7The lifting transmission assembly 45 includes a connecting plate 451, a driven plate 452, a docking hole 453, a connecting rod 454, a transmission plate 455, an inclined groove 456, and a second spring rod 457. The lower side of the drive frame 41 is provided with a connecting plate 451 that moves back and forth. The lower surface of the connecting plate 451 is fixedly provided with a driven plate 452. The surface of the driven plate 452 is evenly provided with a plurality of docking holes 453 that engage with the lifting rod 4436. The front surface of the connecting plate 451 is symmetrically provided with a connecting rod 454 that slides and connects with the washing tank 1. The front end of each connecting rod 454 is fixedly provided with a transmission plate 455. The surface of the transmission plate 455 is provided with an inclined groove 456 that slides and engages with the driven shaft 336. The upper end of the transmission plate 455 is elastically slidably provided with a second spring rod 457. The rear end of the second spring rod 457 is fixedly connected to the moving frame 31 through a plate.

[0056] When the lifting tube 335 is to be moved up and down intermittently, the T-shaped slide plate 4431 can be driven to move back and forth intermittently through the intermittent meshing of the first half gear 422 and the second gear 4421. Through the meshing of one set of teeth on the synchronously rotating second half gear 423 with the third gear 4434, the lifting rod 4436 can be driven to move down and insert into the corresponding docking hole 453. When the T-shaped slide plate 4431 starts to move back and forth, the lifting rod 4436, which is engaged with the docking hole 453, can drive the driven plate 452 and the connecting plate 451 to move back and forth synchronously. The connecting rod 454 then drives the transmission plate 455 to move back and forth. The transmission plate 455 then drives the driven shaft 336 and the lifting tube 335 to move down a certain distance and then move up to reset through the inclined groove 456. This allows the lifting tube 335 to guide the high-pressure washing liquid to fully break down and penetrate the blocky lithium carbonate filter cake.

[0057] When the lifting tube 335 completes one up-and-down reciprocating movement, the other set of teeth on the second half gear 423 will first mesh with the third gear 4434 and drive the lifting rod 4436 to move upward. When the lifting rod 4436 is completely disengaged from the docking hole 453, the first half gear 422 meshes with the first gear 431 and drives the moving frame 31 to move forward a certain distance. At the same time, under the action of the second spring rod 457, the transmission plate 455 and the driven plate 452 will move synchronously and stably a certain distance with the moving frame 31. The lower end of the lifting rod 4436 will then be stably aligned with the next docking hole 453. This operation method can not only ensure that the moving frame 31 can move stably, but also ensure that the lifting tube 335 can be stably driven to move up and down, thereby improving the consistency of the overall disintegration and rinsing of the lithium carbonate filter cake and the continuity of the washing operation process.

[0058] Please see Figure 3 and Figure 5The stirring mechanism 5 includes a stirring chamber 51, a stirring paddle 52, and a second motor 53; the stirring chamber 51 is fixedly provided on the side surface of the washing tank 1, the stirring paddle 52 is rotatably provided inside the stirring chamber 51, and the second motor 53 is fixedly provided on the upper surface of the stirring chamber 51, with the drive end of the second motor 53 fixedly connected to the stirring paddle 52.

[0059] When the washing liquid in the washing tank 1 completely submerges the lithium carbonate precipitate, the second motor 53 can drive the stirring paddle 52 to stir and wash the lithium carbonate precipitate. At the same time, the high-pressure nozzle 334 maintains the impact on the lithium carbonate precipitate, thereby preventing the lithium carbonate precipitate from settling. This operation method can ensure the washing effect of the lithium carbonate precipitate while reducing the washing time, thereby improving the overall washing efficiency.

[0060] Please see Figure 3 The filtration mechanism 6 includes a filtration chamber 61, a cylinder rod 62, a piston plate 63, and a liquid guide pipe 64; the filtration chamber 61 is fixedly installed on the lower surface of the washing tank 1, the cylinder rod 62 is fixedly installed on the lower surface of the filtration chamber 61, the piston plate 63 is fixedly installed on the telescopic end of the cylinder rod 62, and the liquid guide pipe 64 is fixedly installed on the front side of the filtration chamber 61.

[0061] When the lithium carbonate precipitate has been washed once, the dispersing, liquid injection and stirring of the lithium carbonate precipitate are stopped. The piston plate 63 is moved downward by the cylinder rod 62, so that the washing filtrate and lithium carbonate precipitate in the washing tank 1 are filtered by negative pressure. The washing filtrate will be sucked onto the filter cloth 223 and fall into the filtration chamber 61. Finally, the filtrate can be discharged and collected by the liquid guide pipe 64, while the lithium carbonate precipitate will form a filter cake on the filter cloth 223 again, so as to facilitate repeated washing and subsequent feeding. When it is necessary to reset the piston plate 63, the pressure relief valve on the upper surface of the washing tank 1 can ensure the air pressure balance in the washing tank 1. This operation mode greatly improves the overall continuity and efficiency of the lithium carbonate washing operation process.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precipitation treatment device for lithium carbonate preparation, comprising a washing tank (1), characterized in that: The washing tank (1) is provided with a pressure relief valve on its upper surface. The washing tank (1) is provided with stirring mechanisms (5) on both sides for stirring and mixing lithium carbonate filter cake precipitate and washing liquid. The washing tank (1) is provided with a suction filtration mechanism (6) for filtering washing liquid on its lower side. The washing tank (1) is provided with a feeding mechanism (2) and a pretreatment mechanism (3). The pretreatment mechanism (3) is located on the upper side of the feeding mechanism (2). The pretreatment mechanism (3) is provided with a driving mechanism (4) on the rear side of the pretreatment mechanism (3). The feeding mechanism (2) includes a feeding component (21), a supporting component (22) and a locking component (23); the feeding component (21) is provided on the front side of the washing tank (1), the supporting component (22) is provided on the rear side of the feeding component (21), and the locking components (23) are symmetrically provided on both sides of the washing tank (1). The pretreatment mechanism (3) includes a movable frame (31), a rinsing assembly (32), and a dispersing assembly (33); the movable frame (31) is slidably arranged inside the washing tank (1), and the rinsing assembly (32) and the dispersing assembly (33) are arranged on the movable frame (31). The drive mechanism (4) includes a drive frame (41), a drive assembly (42), a telescopic linkage assembly (43), a reciprocating linkage assembly (44), and a lifting transmission assembly (45); the drive frame (41) is fixedly installed in the middle of the rear surface of the washing tank (1), the drive assembly (42) is installed at the rear end of the drive frame (41), the telescopic linkage assembly (43) is installed on the front side of the drive assembly (42), the reciprocating linkage assembly (44) is installed on the rear side of the drive assembly (42), and the lifting transmission assembly (45) is installed on the lower side of the reciprocating linkage assembly (44). The stirring mechanism (5) includes a stirring chamber (51), a stirring paddle (52), and a second motor (53); the stirring chamber (51) is fixedly provided on the side surface of the washing tank (1), the stirring paddle (52) is rotatably provided inside the stirring chamber (51), and the second motor (53) is fixedly provided on the upper surface of the stirring chamber (51), and the driving end of the second motor (53) is fixedly connected to the stirring paddle (52); The filtration mechanism (6) includes a filtration chamber (61), a cylinder rod (62), a piston plate (63), and a liquid guide pipe (64); the filtration chamber (61) is fixedly installed on the lower surface of the washing tank (1), the cylinder rod (62) is fixedly installed on the lower surface of the filtration chamber (61), the piston plate (63) is fixedly installed on the telescopic end of the cylinder rod (62), and the liquid guide pipe (64) is fixedly installed on the front side of the filtration chamber (61).

2. The precipitation treatment equipment for lithium carbonate preparation according to claim 1, characterized in that: The feeding assembly (21) includes a feeding port (211), a sealing plate (212), a first spring rod (213), and a pressure plate (214); the front surface of the washing tank (1) is provided with a feeding port (211), the front side of the feeding port (211) is slidably provided with a sealing plate (212), the outer ring of the rear surface of the sealing plate (212) is fixedly provided with a sealing rubber ring, the four corners of the front surface of the sealing plate (212) are all fixedly provided with a first spring rod (213), the front side of the sealing plate (212) is elastically slidably provided with a pressure plate (214) which is slidably connected to the first spring rod (213), and the front surface of the pressure plate (214) is fixedly provided with a handle; The support assembly (22) includes a support frame (221), a filter frame (222), and a filter cloth (223); the rear surface of the sealing plate (212) is fixedly provided with a support frame (221) by a plate component, the filter frame (222) is hooked inside the support frame (221), and the filter cloth (223) is fixedly provided inside the filter frame (222).

3. The precipitation treatment equipment for lithium carbonate preparation according to claim 1, characterized in that: The locking assembly (23) includes a slide (231), a positioning hole (232), a sliding rod (233), an insertion hole (234), and a pin (235). The slide (231) is fixedly provided on the side surface of the washing tank (1). The positioning hole (232) is provided on the side of the slide (231) away from the center of the washing tank (1). The sliding rod (233) is slidably provided in the slide (231). The front end of the sliding rod (233) is fixedly connected to the rear surface of the pressure plate (214). The insertion hole (234) is provided on the surface of the sliding rod (233). The pin (235) is inserted into both the insertion hole (234) and the positioning hole (232).

4. The precipitation treatment equipment for lithium carbonate preparation according to claim 1, characterized in that: The rinsing assembly (32) includes a first central pipe (321), rinsing heads (322) and a first sliding pipe (323); the first central pipe (321) is fixedly installed on the rear side of the lower surface of the movable frame (31), and multiple rinsing heads (322) are evenly fixedly installed on the lower surface of the first central pipe (321). The first sliding pipe (323) is symmetrically fixedly installed on the left and right sides of the rear side of the first central pipe (321) and is slidably connected to the washing tank (1). The first sliding pipe (323) is fixedly connected to the first central pipe (321) and the movable frame (31) through the L-shaped pipe at the front end.

5. The precipitation treatment equipment for lithium carbonate preparation according to claim 4, characterized in that: The dispersing component (33) includes a second central tube (331), a second sliding tube (332), a connecting plate (333), a high-pressure nozzle (334), a lifting tube (335), and a driven shaft (336). The front side of the upper surface of the moving frame (31) is fixedly provided with the second central tube (331). The rear side of the second central tube (331) is symmetrically provided with the second sliding tube (332) which is slidably connected to the washing tank (1). The rear end of the second sliding tube (332) is fixedly connected to the first sliding tube (323) through the connecting plate (333). Multiple high-pressure nozzles (334) are uniformly fixedly provided on the lower surface of the second central tube (331). The surface of each high-pressure nozzle (334) is slidably provided with a lifting tube (335). The lifting tubes (335) are fixedly connected to each other through a plate. The side of the lifting tube (335) at both ends of the second central tube (331) away from the center of the second central tube (331) is fixedly provided with a driven shaft (336).

6. The precipitation treatment equipment for lithium carbonate preparation according to claim 1, characterized in that: The drive assembly (42) includes a first motor (421), a first half gear (422), and a second half gear (423); the first motor (421) is fixedly mounted on the upper surface of the drive frame (41), the first half gear (422) is fixedly mounted on the drive end of the first motor (421), the second half gear (423) is fixedly mounted on the lower surface of the first half gear (422) through a rod, and two sets of symmetrically distributed teeth with the same number of teeth are fixedly mounted on the surface of the second half gear (423).

7. The precipitation treatment equipment for lithium carbonate preparation according to claim 5, characterized in that: The telescopic linkage assembly (43) includes a first gear (431), a first bevel gear (432), a fixed frame (433), a threaded sleeve (434), a second bevel gear (435), and a threaded rod (436). The drive frame (41) is rotatably provided with a first gear (431) that meshes with the first half gear (422). The upper surface of the first gear (431) is fixedly provided with the first bevel gear (432) by a rod. The upper side of the rear surface of the washing tank (1) is fixedly provided with a fixed frame (433). The rear end of the fixed frame (433) is rotatably provided with a threaded sleeve (434). The rear side of the threaded sleeve (434) is fixedly provided with a second bevel gear (435) that meshes with the first bevel gear (432). The threaded sleeve (434) is internally threaded with a threaded rod (436). The front end of the threaded rod (436) is fixedly connected to the rear surface of the connecting plate (333).

8. The precipitation treatment equipment for lithium carbonate preparation according to claim 6, characterized in that: The reciprocating linkage assembly (44) includes a spring clip (441), a gear part (442), and a linkage part (443); the rear end of the upper surface of the drive frame (41) is fixedly provided with a spring clip (441) by a plate part; the front side of the spring clip (441) is provided with a gear part (442) that cooperates with the drive assembly (42) for transmission; the lower side of the gear part (442) is provided with a linkage part (443) that cooperates with the lifting transmission assembly (45) for transmission. The gear unit (442) includes a second gear (4421), a snap-fit ​​plate (4422), a snap-fit ​​groove (4423), a drive rotating plate (4424), and a drive shaft (4425). The drive frame (41) is rotatably provided with a second gear (4421) that meshes with the first half gear (422). The upper surface of the second gear (4421) is fixedly provided with a snap-fit ​​plate (4422). The surface of the snap-fit ​​plate (4422) is provided with a snap-fit ​​groove (4423) that engages with the spring clip (441). The lower surface of the second gear (4421) is fixedly provided with a drive rotating plate (4424) by a rod. The lower surface of the drive rotating plate (4424) is eccentrically fixedly provided with a drive shaft (4425). The linkage (443) includes a T-shaped slide plate (4431), a straight groove (4432), a drive sleeve (4433), a third gear (4434), a drive groove (4435), a lifting rod (4436), and a sliding shaft (4437); the T-shaped slide plate (4431) is slidably disposed on the lower side of the drive rotating plate (4424), and the rear end of the T-shaped slide plate (4431) is fixedly disposed with a plate part four that is slidably connected to the drive frame (41). The rear end of the upper surface of the T-shaped slide plate (4431) is provided with a straight groove (4432) that is slidably engaged with the drive shaft (4425). 1) The front end is provided with a drive sleeve (4433), and the upper end of the drive sleeve (4433) is fixedly provided with a third gear (4434) that meshes with the second half gear (423). The inner surface of the drive sleeve (4433) is provided with a drive groove (4435), which is composed of a V-shaped inclined groove and an annular groove. The drive sleeve (4433) is slidably provided with a lifting rod (4436) that is slidably connected to the front end of the T-shaped slide plate (4431). The upper side of the surface of the lifting rod (4436) is fixedly provided with a sliding shaft (4437) that is slidably engaged with the drive groove (4435).

9. A precipitation treatment apparatus for lithium carbonate preparation according to claim 8, characterized in that: The lifting transmission assembly (45) includes a connecting plate (451), a driven plate (452), a docking hole (453), a connecting rod (454), a transmission plate (455), an inclined groove (456), and a second spring rod (457); the lower side of the drive frame (41) is provided with a connecting plate (451) that moves back and forth, and the lower surface of the connecting plate (451) is fixedly provided with a driven plate (452). The surface of the driven plate (452) is evenly provided with a plurality of docking holes (4436) that engage with the lifting rod (4436). 53), the front surface of the linkage plate (451) is symmetrically fixed with linkage rods (454) that are slidably connected to the washing tank (1). The front end of each linkage rod (454) is fixedly provided with a transmission plate (455). The surface of the transmission plate (455) is provided with an oblique groove (456) that is slidably engaged with the driven shaft (336). The upper end of the transmission plate (455) is elastically slidably provided with a second spring rod (457). The rear end of the second spring rod (457) is fixedly connected to the moving frame (31) through plate five.

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