Precipitation treatment equipment for lithium carbonate preparation

Abstract

The invention relates to the technical field of lithium carbonate preparation, in particular to precipitation treatment equipment for lithium carbonate preparation, which comprises a washing box, a feeding mechanism and a pretreatment mechanism are arranged on the washing box, stirring mechanisms are arranged on two sides of the washing box, and a suction filtration mechanism is arranged on the lower side of the washing box; the lithium carbonate filter cake can be rapidly fed into the washing box through the feeding mechanism, and the washed high-purity lithium carbonate precipitate can be stably taken out of the washing box; according to the invention, through the pretreatment mechanism, lithium carbonate filter cakes can be quickly dispersed and synchronously showered; the pretreatment mechanism and the stirring mechanism are matched to fully stir, mix and wash the lithium carbonate filter cake precipitate and the washing liquid, so that the overall washing effect on the lithium carbonate precipitate is ensured, and meanwhile, the washing liquid absorbing impurities can be quickly extracted from the lithium carbonate precipitate through the suction filtration mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium carbonate preparation, and specifically relates to precipitation treatment equipment for lithium carbonate preparation. Background Art

[0002] Lithium carbonate is an inorganic compound widely used in ceramics, glass, lithium batteries, medicines, catalysts and other fields. Lithium carbonate is a colorless monoclinic crystal or white powder, slightly soluble in water and dilute acid, insoluble in ethanol and acetone. The thermal stability of lithium carbonate is lower than that of other carbonates in the same family, but it is not easy to absorb moisture in the air. In the prior art, the lithium carbonate filter cake precipitate prepared by the comprehensive utilization of brine generally needs to undergo water washing, centrifugal separation, drying and other treatment processes to obtain the finished lithium carbonate product. When washing the lithium carbonate filter cake precipitate, it is generally necessary to redisperse the lithium carbonate filter cake in the washing liquid, and then stir the lithium carbonate filter cake in the washing liquid to promote the desorption and dissolution of impurities in the lithium carbonate filter cake and improve the washing efficiency. Finally, the washed lithium carbonate filter cake precipitate is filtered and separated again. After repeating the above steps many times, a lithium carbonate precipitate with higher purity can be obtained.

[0003] However, the traditional method of washing lithium carbonate has the following problems: 1. The existing washing method generally requires that the lithium carbonate filter cake be dispersed and then put into the washing liquid for washing, and most of the lithium carbonate filter cake is still in block form after dispersion, which results in the impurities inside the lithium carbonate filter cake being unable to be quickly dissolved in the washing liquid, making the subsequent stirring, dissolving and washing time-consuming longer, and resulting in low overall washing efficiency; 2. The existing washing method generally requires multiple sets of equipment to perform repeated operations such as dispersing, feeding, stirring, washing, and filtering and sedimentation on the lithium carbonate filter cake. This operation method results in the overall washing operation steps being more cumbersome, and the overall washing operation process is poorly continuous and inefficient. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precipitation treatment device for preparing lithium carbonate, comprising a washing box, a pressure relief valve is arranged on the upper surface of the washing box, stirring mechanisms for stirring and mixing lithium carbonate filter cake precipitation and washing liquid are symmetrically arranged on both sides of the washing box, a suction filtration mechanism for filtering the washing liquid is arranged on the lower side of the washing box, a feeding mechanism and a pretreatment mechanism are arranged on the washing box, the pretreatment mechanism is arranged on the upper side of the feeding mechanism, and a driving mechanism is arranged on the rear side of the pretreatment mechanism.

[0005] The feeding mechanism comprises a feeding assembly, a supporting assembly and a locking assembly; the feeding assembly is arranged on the front side of the washing box, the supporting assembly is arranged on the rear side of the feeding assembly, and the locking assemblies are symmetrically arranged on both sides of the washing box.

[0006] The pretreatment mechanism comprises a moving frame, a rinsing component and a scattering component; the moving frame is slidably arranged in the washing box, and the rinsing component and the scattering component are arranged on the moving frame.

[0007] The driving mechanism includes a driving frame, a driving assembly, a telescopic linkage assembly, a reciprocating linkage assembly and a lifting transmission assembly; the driving frame is fixedly arranged in the middle of the rear surface of the washing box, the driving assembly is arranged at the rear end of the driving frame, the telescopic linkage assembly is arranged on the front side of the driving assembly, the reciprocating linkage assembly is arranged on the rear side of the driving assembly, and the lifting transmission assembly is arranged on 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 provided on the side surface of the washing box, a stirring paddle is rotatably provided in the stirring chamber, the second motor is fixedly provided on the upper surface of the stirring chamber, and the driving end of the second motor is fixedly connected to the stirring paddle.

[0009] The suction filtration mechanism includes a suction filtration bin, a cylinder rod, a piston plate and a liquid guide tube; the suction filtration bin is fixedly arranged on the lower surface of the washing box, the cylinder rod is fixedly arranged on the lower surface of the suction filtration bin, the piston plate is fixedly arranged at the telescopic end of the cylinder rod, and the liquid guide tube is fixedly arranged on the front side of the suction filtration bin.

[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 box is provided with a feeding port, a sealing plate is slidably provided on the front side of the feeding port, a sealing rubber ring is fixedly provided on the outer ring of the rear surface of the sealing plate, the first spring rod is fixedly provided at the four corners of the front surface of the sealing plate, a pressure plate slidably connected to the first spring rod is elastically slidably provided on the front side of the sealing plate, and a handle is fixedly provided on the front surface of the pressure plate.

[0011] The supporting assembly comprises a supporting frame, a filter frame and a filter cloth; the rear surface of the sealing plate is fixedly provided with a supporting frame through a plate member 1, the filter frame is hung inside the supporting frame, and the filter cloth is fixedly provided inside the filter frame.

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

[0013] Preferably, the shower assembly includes a first concentrating tube, a shower head and a first sliding tube; the first concentrating tube is fixedly arranged on the rear side of the lower surface of the movable frame, a plurality of shower heads are evenly fixedly arranged on the lower surface of the first concentrating tube, a first sliding tube slidably connected to the washing box is symmetrically fixedly arranged on the rear side of the first concentrating tube, and the first sliding tube is fixedly connected to the first concentrating tube and the movable frame through an L-shaped tube at the front end.

[0014] Preferably, the breaking up assembly includes a second concentrating pipe, a second sliding pipe, a connecting plate, a high-pressure nozzle, a lifting pipe and a driven shaft; a second concentrating pipe is fixedly arranged on the front side of the upper surface of the movable frame, a second sliding pipe slidably connected to the washing box is symmetrically fixedly arranged on the rear side of the second concentrating pipe, the second sliding pipe is fixedly connected to the rear end of the first sliding pipe through a connecting plate, a plurality of high-pressure nozzles are evenly fixedly arranged on the lower surface of the second concentrating pipe, lifting pipes are slidingly arranged on the surface of the high-pressure nozzles, the lifting pipes are fixedly connected by plate 2, and the lifting pipes at both ends of the second concentrating pipe are fixedly arranged on the side away from the center of the second concentrating pipe.

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

[0016] Preferably, the telescopic linkage assembly includes a first gear, a first bevel gear, a fixing frame, a threaded sleeve, a second bevel gear and a threaded rod; a first gear is rotatably provided on the driving frame and meshes with the first half gear for transmission, a first bevel gear is fixedly provided on the upper surface of the first gear through a second rod, a fixing frame is fixedly provided on the upper side of the rear surface of the washing box, a threaded sleeve is rotatably provided on the rear end of the fixing frame, a second bevel gear meshes with the first bevel gear for transmission is fixedly provided on the rear side of the threaded sleeve, a threaded rod is connected to the inner thread of the threaded sleeve, and a 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 part and a linkage part; the rear end of the upper surface of the driving frame is fixedly provided with a spring clip through plate member 3, the front side of the spring clip is provided with a gear part that cooperates with the driving assembly for transmission, and the lower side of the gear part is provided with a linkage part that cooperates with the lifting transmission assembly for transmission. The gear part includes a second gear, a clamping plate, a clamping groove, a driving rotating plate and a driving shaft; the driving frame is rotatably provided with a second gear that meshes with the first half gear for transmission, the upper surface of the second gear is fixedly provided with a clamping plate, the surface of the clamping plate is provided with a clamping groove that cooperates with the spring clip, the lower surface of the second gear is fixedly provided with a driving rotating plate through rod member 3, and the lower surface of the driving rotating plate is eccentrically fixed with a driving shaft.

[0018] The linkage part includes a T-shaped slide, a linear groove, a driving sleeve, a third gear, a driving groove, a lifting rod and a sliding shaft; a T-shaped slide is slidably arranged on the lower side of the driving rotating plate, and a plate member four slidably connected to the driving frame is fixedly arranged at the rear end of the T-shaped slide, a linear groove slidably matched with the driving shaft is provided at the rear end of the upper surface of the T-shaped slide, a driving sleeve is rotatably arranged at the front end of the T-shaped slide, and a third gear meshing with the second half gear is fixedly arranged on the upper end of the driving sleeve for transmission, a driving groove is provided on the inner surface of the driving sleeve, and the driving groove consists of a V-shaped oblique groove and an annular groove, a lifting rod slidably connected to the front end of the T-shaped slide is slidably arranged in the driving sleeve, and a sliding shaft slidably matched with the driving groove is fixedly arranged on the upper side of the surface of the lifting rod.

[0019] Preferably, the lifting transmission assembly includes a linkage plate, a driven plate, a docking hole, a linkage rod, a transmission plate, an oblique groove and a second spring rod; a linkage plate that moves forward and backward is provided on the lower side of the driving frame, a driven plate is fixedly provided on the lower surface of the linkage plate, a plurality of docking holes that cooperate with the lifting plug rod are evenly provided on the surface of the driven plate, a linkage rod that is slidably connected to the washing box is symmetrically fixed on the front surface of the linkage plate, a transmission plate is fixedly provided at the front end of the linkage rod, an oblique groove that slidably cooperates with the driven shaft is provided on the surface of the transmission plate, a second spring rod is elastically slidably provided on the upper end of the transmission plate, and a rear end of the second spring rod is fixedly connected to the moving frame through plate member five.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can realize rapid loading of lithium carbonate filter cake into the washing box through the loading mechanism, and can also realize stable removal of high-purity lithium carbonate precipitate that has completed washing from the washing box. This operation mode can ensure the efficiency and stability of loading and unloading of lithium carbonate precipitate.

[0021] 2. The present invention uses a pretreatment mechanism to quickly disperse the lithium carbonate filter cake and simultaneously rinse and wash the impurities adsorbed inside the lithium carbonate filter cake precipitate, thereby improving the overall washing effect of the lithium carbonate precipitate and shortening the time for subsequent stirring, breaking up and washing the lithium carbonate filter cake precipitate, thereby greatly improving the efficiency of lithium carbonate precipitate washing.

[0022] 3. The present invention can fully stir, mix and wash the lithium carbonate filter cake precipitate with the washing liquid through the cooperation of the pretreatment mechanism and the stirring mechanism, thereby ensuring the overall washing effect of the lithium carbonate precipitate. At the same time, the washing liquid absorbed with impurities can be quickly extracted from the lithium carbonate precipitate through the suction filtration mechanism, thereby improving the filtration efficiency of the lithium carbonate precipitate. The lithium carbonate precipitate after filtration will be formed into a filter cake again, so that the pretreatment mechanism and the stirring mechanism can wash it repeatedly. This operation method greatly improves the overall continuity and efficiency of the lithium carbonate washing operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention.

[0024] Figure 2 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0025] Figure 3 It is a schematic side cross-sectional view of the structure of the present invention.

[0026] Figure 4 It is a schematic diagram of the feeding mechanism structure.

[0027] Figure 5 It is a schematic diagram of the structure of the pretreatment mechanism and the stirring mechanism.

[0028] Figure 6 for Figure 5 Enlarged schematic diagram of point B in the middle.

[0029] Figure 7 It is a schematic diagram of the structure of the pretreatment mechanism and the driving mechanism.

[0030] Figure 8 It is a schematic diagram of the driving mechanism structure.

[0031] Fig. 9 for Figure 8 Enlarged structural diagram at point C in the middle.

[0032] In the figure: 1, washing box; 2, feeding mechanism; 21, feeding assembly; 211, feeding port; 212, sealing plate; 213, first spring rod; 214, pressing plate; 22, supporting assembly; 221, supporting frame; 222, filter frame; 223, filter cloth; 23, locking assembly; 231, sliding seat; 232, positioning hole; 233, sliding rod; 234, plug hole; 235, latch; 3, pretreatment mechanism; 31, moving frame; 32, rinsing assembly; 321, First central tube; 322, shower head; 323, first slide tube; 33, scattering assembly; 331, second central tube; 332, second slide tube; 333, connecting plate; 334, high pressure nozzle; 335, lifting tube; 336, driven shaft; 4, driving mechanism; 41, driving frame; 42, driving assembly; 421, first motor; 422, first half gear; 423, second half gear; 43, telescopic linkage assembly; 431, first gear; 432, first bevel gear; 433, fixing frame; 434, threaded sleeve; 435, second bevel gear; 436, threaded rod; 44, reciprocating linkage assembly; 441, spring clamp; 442, gear portion; 4421, second gear; 4422, clamping plate; 4423, clamping groove; 4424, driving rotating plate; 4425, driving shaft; 443, linkage portion; 4431, T-type slide plate; 4432, linear groove; 4433, driving sleeve; 4434, third gear; 4 435, driving groove; 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, oblique groove; 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 tube. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1 and Figure 3A precipitation treatment equipment for preparing lithium carbonate comprises a washing box 1, a feeding mechanism 2, a pretreatment mechanism 3, a driving mechanism 4, a stirring mechanism 5 and a suction filtration mechanism 6, wherein a pressure relief valve is arranged on the upper surface of the washing box 1, stirring mechanisms 5 are symmetrically arranged on both sides of the washing box 1, a suction filtration mechanism 6 is arranged on the lower side of the washing box 1, a feeding mechanism 2 and a pretreatment mechanism 3 are arranged on the washing box 1, the pretreatment mechanism 3 is arranged on the upper side of the feeding mechanism 2, and a driving mechanism 4 is arranged on the rear side of the pretreatment mechanism 3.

[0035] See also Figure 1 and Figure 3 The feeding mechanism 2 includes a feeding component 21, a supporting component 22 and a locking component 23; the front side of the washing box 1 is provided with the feeding component 21, the rear side of the feeding component 21 is provided with the supporting component 22, and the locking components 23 are symmetrically provided on both sides of the washing box 1.

[0036] See also 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 pressing plate 214; the front surface of the washing box 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 rubber ring is fixedly provided on the outer ring of the rear surface of the sealing plate 212, the first spring rod 213 is fixedly provided at the four corners of the front surface of the sealing plate 212, a pressing plate 214 slidably connected to the first spring rod 213 is elastically slidably provided on the front side of the sealing plate 212, and a handle is fixedly provided on the front surface of the pressing plate 214.

[0037] See also Figure 3 and Figure 4 The supporting assembly 22 includes a supporting frame 221, a filter frame 222 and a filter cloth 223; the rear surface of the sealing plate 212 is fixedly provided with a supporting frame 221 through a plate member 1, the supporting frame 221 is hung with a filter frame 222, and the filter cloth 223 is fixedly provided in the filter frame 222.

[0038] See also Figure 1 , Figure 2 and Figure 4 The locking assembly 23 includes a sliding seat 231, a positioning hole 232, a sliding rod 233, a socket 234 and a latch 235; a sliding seat 231 is fixedly provided on the side surface of the washing box 1, a positioning hole 232 is provided on the side of the sliding seat 231 away from the center of the washing box 1, a sliding rod 233 is slidably provided in the sliding seat 231, the front end of the sliding rod 233 is fixedly connected to the rear surface of the pressing plate 214, a socket 234 is provided on the surface of the sliding rod 233, and a latch 235 is inserted into both the socket 234 and the positioning hole 232.

[0039] When the lithium carbonate filter cake is to be precipitated and loaded into the washing box 1, the lithium carbonate filter cake to be washed is first laid on the filter cloth 223, and then the filter frame 222 is hung in the support frame 221, and then the filter frame 222 and the lithium carbonate filter cake are pushed into the washing box 1 through the handle on the pressing plate 214 until the socket 234 is aligned with the positioning hole 232, and the latch 235 is inserted into the socket 234 and the positioning hole 232, so as to fix the pressing plate 214. At this time, under the action of the first spring rod 213, the sealing plate 212 can stably seal the loading port 211 through the sealing rubber ring. This loading method is simple to operate and convenient to unload. At the same time, it can ensure the sealing of the washing box 1 during the washing of the lithium carbonate filter cake, thereby ensuring the stability and efficiency of the suction filtration mechanism 6 in filtering the washing liquid.

[0040] See also Figure 3 , Figure 5 and Figure 7 The pretreatment mechanism 3 includes a moving frame 31, a rinsing component 32 and a scattering component 33; the moving frame 31 is slidably arranged in the washing box 1, and the rinsing component 32 and the scattering component 33 are arranged on the moving frame 31.

[0041] See also Figure 7 The rinsing assembly 32 includes a first concentrating pipe 321, a rinsing head 322 and a first sliding pipe 323; the first concentrating pipe 321 is fixedly arranged on the rear side of the lower surface of the movable frame 31, and a plurality of rinsing heads 322 are evenly fixedly arranged on the lower surface of the first concentrating pipe 321; the first sliding pipe 323 slidably connected to the washing box 1 is fixedly arranged symmetrically on the left and right sides of the rear side of the first concentrating pipe 321; the first sliding pipe 323 is fixedly connected to the first concentrating pipe 321 and the movable frame 31 through the L-shaped pipe at the front end.

[0042] See also Figure 5 and Figure 6 The dispersing assembly 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 second central tube 331 is fixedly provided on the front side of the upper surface of the movable frame 31, and the second sliding tube 332 slidably connected to the washing box 1 is fixedly provided on the rear side of the second central tube 331 symmetrically, and the second sliding tube 332 is fixedly connected to the rear end of the first sliding tube 323 through a connecting plate 333, and a plurality of high-pressure nozzles 334 are evenly fixedly provided on the lower surface of the second central tube 331, and lifting tubes 335 are slidably provided on the surface of the high-pressure nozzles 334, and the lifting tubes 335 are fixedly connected by plate 2, and the lifting tubes 335 are fixedly connected by plate 2, and the lifting tubes 335 at the two ends of the second central tube 331 are fixedly provided with a driven shaft 336 on the side away from the center of the second central tube 331.

[0043] When the lithium carbonate filter cake in block form laid on the filter cloth 223 is to be broken up and rinsed, a low-pressure washing liquid for rinsing is first introduced into the first central pipe 321 through the first sliding pipe 323, and a high-pressure washing liquid for breaking up is simultaneously introduced into the second central pipe 331 through the second sliding pipe 332, and then the connecting plate 333 is intermittently driven forward by the driving mechanism 4 to move a specific distance forward, so that the movable frame 31 drives the rinsing head 322 and the high-pressure nozzle 334 to intermittently move forward a specific distance, and 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 movable frame 31 stops moving, the driving mechanism 4 will drive the driven shaft 336 to move downward a specific distance first and then move upward to reset, thereby driving the lifting pipe 335 to move up and down synchronously. When the lifting pipe 335 moves downward to a specific position, the lifting pipe 335 will guide the high-pressure washing head 334 to move forward to the specific distance. The washing liquid fully breaks up and penetrates the blocky lithium carbonate filter cake, thereby ensuring that the washing liquid can fully dissolve the impurities inside the lithium carbonate filter cake. At the same time, this breaking up method is applicable to lithium carbonate filter cakes of different weights and thicknesses, and the washing liquid flowing out of the rinsing head 322 can fully rinse the surface and the inside of the lithium carbonate filter cake. When the high-pressure nozzle 334 and the rinsing head 322 are driven by the driving mechanism 4 to continuously move back and forth to repeatedly break up and rinse the lithium carbonate filter cake, the washing liquid in the washing box 1 will completely immerse the lithium carbonate precipitate, so that the lithium carbonate precipitate can be stirred and washed in the next step through the stirring mechanism 5. This operation method can rinse and wash the impurities adsorbed inside the lithium carbonate filter cake precipitate, thereby improving the overall washing effect of the lithium carbonate precipitate, and at the same time shortening the time for subsequent stirring, breaking up and washing the lithium carbonate filter cake precipitate, thereby greatly improving the efficiency of washing the lithium carbonate precipitate.

[0044] See also Figure 7 The driving mechanism 4 includes a driving frame 41, a driving assembly 42, a telescopic linkage assembly 43, a reciprocating linkage assembly 44 and a lifting transmission assembly 45; the driving frame 41 is fixedly arranged in the middle of the rear surface of the washing box 1, the rear end of the driving frame 41 is arranged with the driving assembly 42, the front side of the driving assembly 42 is arranged with the telescopic linkage assembly 43, the rear side of the driving assembly 42 is arranged with the reciprocating linkage assembly 44, and the lower side of the reciprocating linkage assembly 44 is arranged with the lifting transmission assembly 45.

[0045] See also Figure 8 The driving assembly 42 includes a first motor 421, a first half gear 422 and a second half gear 423; the first motor 421 is fixedly provided on the upper surface of the driving frame 41, the first half gear 422 is fixedly provided on the driving end of the first motor 421, the second half gear 423 is fixedly provided on the lower surface of the first half gear 422 through a rod, and two groups of symmetrically distributed teeth with the same number of teeth are fixedly provided on the surface of the second half gear 423.

[0046] See also Figure 7 and Figure 8 The telescopic linkage assembly 43 includes a first gear 431, a first bevel gear 432, a fixing frame 433, a threaded sleeve 434, a second bevel gear 435 and a threaded rod 436; the driving frame 41 is rotatably provided with a first gear 431 that meshes and transmits with the first half gear 422, the upper surface of the first gear 431 is fixedly provided with a first bevel gear 432 through a rod 2, a fixing frame 433 is fixedly provided on the upper side of the rear surface of the washing box 1, a threaded sleeve 434 is rotatably provided at the rear end of the fixing frame 433, a second bevel gear 435 that meshes and transmits with the first bevel gear 432 is fixedly provided on the rear side of the threaded sleeve 434, a threaded rod 436 is internally threadedly connected to the threaded sleeve 434, and the front end of the threaded rod 436 is fixedly connected to the rear surface of the connecting plate 333.

[0047] When the movable frame 31 is to be driven to move forward intermittently for a specific distance, the first motor 421 drives the first half gear 422 to rotate continuously in one direction, and the first half gear 422 can drive the first bevel gear 432 to rotate intermittently by intermittently engaging with the first gear 431, and the first bevel gear 432 then drives the second bevel gear 435 and the threaded sleeve 434 to rotate intermittently by engaging with the second bevel gear 435, and the threaded sleeve 434 then drives the connecting plate 333 to move forward intermittently by spiral transmission with the threaded rod 436, thereby driving the movable frame 31, the elution head 322 and the high-pressure nozzle 334 to move forward intermittently for a specific distance. This driving method can ensure the stability and accuracy of the movement of the elution head 322 and the high-pressure nozzle 334, thereby ensuring the stability and efficiency of the elution head 322 and the high-pressure nozzle 334 in breaking up and eluting the lithium carbonate filter cake.

[0048] See also Figure 7 The reciprocating linkage assembly 44 includes a spring clamp 441, a gear portion 442 and a linkage portion 443; the rear end of the upper surface of the driving frame 41 is fixedly provided with a spring clamp 441 through a plate member 3, the front side of the spring clamp 441 is provided with a gear portion 442 that cooperates with the driving assembly 42 for transmission, and the lower side of the gear portion 442 is provided with a linkage portion 443 that cooperates with the lifting transmission assembly 45 for transmission.

[0049] See also Figure 8The gear portion 442 includes a second gear 4421, a clamping plate 4422, a clamping groove 4423, a driving rotating plate 4424 and a driving shaft 4425; a second gear 4421 is rotatably provided on the driving frame 41 and is meshed with the first half gear 422 for transmission, a clamping plate 4422 is fixedly provided on the upper surface of the second gear 4421, a clamping groove 4423 is provided on the surface of the clamping plate 4422 and is engaged with the spring clamp 441, a driving rotating plate 4424 is fixedly provided on the lower surface of the second gear 4421 through a rod three, and a driving shaft 4425 is eccentrically fixedly provided on the lower surface of the driving rotating plate 4424.

[0050] See also Figure 8 and Fig. 9 The linkage part 443 includes a T-shaped slide plate 4431, a linear groove 4432, a driving sleeve 4433, a third gear 4434, a driving groove 4435, a lifting rod 4436 and a sliding shaft 4437; a T-shaped slide plate 4431 is slidably provided on the lower side of the driving rotating plate 4424, and a plate member 4 that is slidably connected to the driving frame 41 is fixedly provided at the rear end of the T-shaped slide plate 4431. A linear groove 4432 that is slidably matched with the driving shaft 4425 is provided on the rear end of the upper surface of the T-shaped slide plate 4431. A driving sleeve 4433 is rotatably provided at the front end, and a third gear 4434 meshing with the second half gear 423 is fixedly provided at the upper end of the driving sleeve 4433. A driving groove 4435 is provided on the inner surface of the driving sleeve 4433, and the driving groove 4435 consists of a V-shaped bevel groove and an annular groove. A lifting rod 4436 slidingly connected to the front end of the T-shaped slide plate 4431 is slidably provided in the driving sleeve 4433, and a sliding shaft 4437 slidingly matched with the driving groove 4435 is fixedly provided on the upper side of the surface of the lifting rod 4436.

[0051] When the T-shaped slide plate 4431 is to be driven to move back and forth intermittently, the first motor 421 drives the first half gear 422 to rotate continuously in one direction, and the first half gear 422 can drive the driving rotating plate 4424 to rotate intermittently one circle by intermittently engaging with the second gear 4421. At this time, the first half gear 422 has been completely disengaged from the first gear 431, and the driving rotating plate 4424 then drives the T-shaped slide plate 4431 to move forward a specific distance and then move backward to reset through the driving shaft 4425 and the linear groove 4432. When the second gear 4421 rotates one circle driven by the first half gear 422, the spring clamp 441 is just engaged with the clamping 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 the reciprocating movement back and forth.

[0052] 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 second half gear 423, which rotates synchronously, will first mesh with the third gear 4434 for transmission, and the driving sleeve 4433 will rotate accordingly and drive the sliding shaft 4437 and the lifting rod 4436 to move upward through the driving groove 4435. When the lifting rod 4436 moves upward by a specific distance, the first half gear 422 and the first gear 431 will mesh and drive the moving frame 31 to move forward, while the set of teeth on the second half gear 423 will disengage from the third gear 4434. At this time, the driving sleeve 4433 will rotate synchronously with the third gear 4434 for half a circle. When the first half gear 422 is about to mesh with the first gear 431, the gear 431 will mesh with the third gear 4434. When disengaging from the first gear 431, another set of teeth on the second half gear 423 meshes with the third gear 4434, and the driving 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 the second half gear 423 has also completely disengaged from the third gear 4434, and the driving sleeve 4433 rotates synchronously with the third gear 4434 again for half a circle, and at this time the lifting rod 4436 has moved to the lowest point, and the first half gear 422 can then drive the T-shaped slide plate 4431 to move back and forth by meshing with the second gear 4421.

[0053] When the movable frame 31 moves to the front end driven by the first motor 421, by making the first motor 421 rotate in the opposite direction, the movable frame 31 can drive the rinsing head 322 and the high-pressure nozzle 334 to move in the opposite direction to break up and rinse the lithium carbonate filter cake, so that by controlling the forward and reverse rotation of the first motor 421, the rinsing head 322 and the high-pressure nozzle 334 can repeatedly break up and rinse 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 operation process.

[0054] See also Figure 7, the lifting transmission assembly 45 includes a linkage plate 451, a driven plate 452, a docking hole 453, a linkage rod 454, a transmission plate 455, an oblique groove 456 and a second spring rod 457; a linkage plate 451 that moves forward and backward is arranged on the lower side of the driving frame 41, a driven plate 452 is fixedly arranged on the lower surface of the linkage plate 451, a plurality of docking holes 453 that cooperate with the lifting plug rod 4436 are evenly provided on the surface of the driven plate 452, a linkage rod 454 that is slidably connected to the washing box 1 is symmetrically fixed on the front surface of the linkage plate 451, a transmission plate 455 is fixedly arranged on the front end of the linkage rod 454, an oblique groove 456 that slides with the driven shaft 336 is provided on the surface of the transmission plate 455, a second spring rod 457 is elastically slidably arranged on the upper end of the transmission plate 455, and the rear end of the second spring rod 457 is fixedly connected to the moving frame 31 through the plate member five.

[0055] When the lifting tube 335 is to be driven to move up and down intermittently, the T-shaped slide plate 4431 can be intermittently driven to move back and forth through the intermittent meshing transmission of the first half gear 422 and the second gear 4421, and the lifting rod 4436 can be driven to move downward and inserted into the corresponding docking hole 453 through one group of teeth on the synchronously rotating second half gear 423 Meshing transmission with the third gear 4434, when the T-shaped slide plate 4431 starts to move back and forth, the lifting rod 4436 engaged with the docking hole 453 can drive the driven plate 452 and the linkage plate 451 to move back and forth synchronously, and the linkage rod 454 drives the transmission plate 455 to move back and forth, and the transmission plate 455 drives the driven shaft 336 and the lifting tube 335 through the oblique groove 456 to move downward for a specific distance and then move upward to reset, so that the lifting tube 335 can guide the high-pressure cleaning liquid to fully break up and penetrate the blocky lithium carbonate filter cake.

[0056] When the lifting tube 335 completes an up and down reciprocating movement, another 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 out of the docking hole 453, the first half gear 422 is meshed with the first gear 431 and drives the moving frame 31 to move forward a specific 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 with the moving frame 31 for a specific distance, and the lower end of the lifting rod 4436 will 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 breaking and eluting of the lithium carbonate filter cake and the continuity of the washing operation process.

[0057] See also 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 arranged on the side surface of the washing box 1, and the stirring paddle 52 is rotatably arranged in the stirring chamber 51; the second motor 53 is fixedly arranged 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.

[0058] When the washing liquid in the washing box 1 completely immerses the lithium carbonate precipitate, the second motor 53 can drive the stirring paddle 52 to stir and wash the lithium carbonate precipitate, while maintaining the impact of the high-pressure nozzle 334 on the lithium carbonate precipitate, thereby preventing the lithium carbonate precipitate from being deposited. This operation method can ensure the washing effect of the lithium carbonate precipitate while reducing the time consumed in washing, thereby improving the overall washing efficiency.

[0059] See also Figure 3 The filtration mechanism 6 includes a filtration bin 61, a cylinder rod 62, a piston plate 63 and a liquid guide tube 64; the filtration bin 61 is fixedly provided on the lower surface of the washing box 1, the cylinder rod 62 is fixedly provided on the lower surface of the filtration bin 61, the piston plate 63 is fixedly provided at the telescopic end of the cylinder rod 62, and the liquid guide tube 64 is fixedly provided on the front side of the filtration bin 61.

[0060] When the lithium carbonate precipitate is washed once, the breaking up, injection and stirring of the lithium carbonate precipitate are stopped, and the piston plate 63 is driven downward by the cylinder rod 62 to negatively filter the washing filtrate and the lithium carbonate precipitate in the washing box 1. The washing filtrate will be sucked toward the filter cloth 223 and fall into the filtration bin 61. Finally, the filtrate can be discharged and collected by the liquid guide tube 64, and the lithium carbonate precipitate will form a filter cake on the filter cloth 223 again, so as to facilitate repeated washing treatment and subsequent unloading. When the piston plate 63 needs to be reset, the pressure relief valve on the upper surface of the washing box 1 can ensure the air pressure balance in the washing box 1. This operation mode greatly improves the overall continuity and efficiency of the lithium carbonate washing operation process.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precipitation treatment device for preparing lithium carbonate, comprising a washing box (1), characterized in that: The upper surface of the washing box (1) is provided with a pressure relief valve, stirring mechanisms (5) for stirring and mixing lithium carbonate filter cake precipitate and washing liquid are symmetrically provided on both sides of the washing box (1), a suction filtration mechanism (6) for filtering the washing liquid is provided on the lower side of the washing box (1), a feeding mechanism (2) and a pretreatment mechanism (3) are provided on the washing box (1), the pretreatment mechanism (3) is provided on the upper side of the feeding mechanism (2), and a driving mechanism (4) is provided on the rear side of the pretreatment mechanism (3); The feeding mechanism (2) comprises a feeding assembly (21), a supporting assembly (22) and a locking assembly (23); the front side of the washing box (1) is provided with the feeding assembly (21), the rear side of the feeding assembly (21) is provided with the supporting assembly (22), and the two sides of the washing box (1) are symmetrically provided with the locking assemblies (23); The pretreatment mechanism (3) comprises a movable frame (31), a rinsing component (32) and a scattering component (33); the movable frame (31) is slidably arranged in the washing box (1), and the rinsing component (32) and the scattering component (33) are arranged on the movable frame (31); The driving mechanism (4) comprises a driving frame (41), a driving assembly (42), a telescopic linkage assembly (43), a reciprocating linkage assembly (44) and a lifting transmission assembly (45); the driving frame (41) is fixedly arranged in the middle of the rear surface of the washing box (1); the driving assembly (42) is arranged at the rear end of the driving frame (41); the telescopic linkage assembly (43) is arranged at the front side of the driving assembly (42); the reciprocating linkage assembly (44) is arranged at the rear side of the driving assembly (42); and the lifting transmission assembly (45) is arranged at the lower side of the reciprocating linkage assembly (44).

2. A precipitation treatment equipment for preparing lithium carbonate according to claim 1, characterized in that: The stirring mechanism (5) comprises a stirring chamber (51), a stirring paddle (52) and a second motor (53); the stirring chamber (51) is fixedly arranged on the side surface of the washing box (1), a stirring paddle (52) is rotatably arranged in the stirring chamber (51), the second motor (53) is fixedly arranged 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 suction filtration mechanism (6) comprises a suction filtration bin (61), a cylinder rod (62), a piston plate (63) and a liquid guide tube (64); the suction filtration bin (61) is fixedly arranged on the lower surface of the washing box (1), the cylinder rod (62) is fixedly arranged on the lower surface of the suction filtration bin (61), the piston plate (63) is fixedly arranged at the telescopic end of the cylinder rod (62), and the liquid guide tube (64) is fixedly arranged on the front side of the suction filtration bin (61).

3. A precipitation treatment equipment for preparing lithium carbonate according to claim 1, characterized in that: The loading assembly (21) comprises a loading port (211), a sealing plate (212), a first spring rod (213) and a pressing plate (214); the front surface of the washing box (1) is provided with a loading port (211), a sealing plate (212) is slidably provided on the front side of the loading port (211), a sealing rubber ring is fixedly provided on the outer ring of the rear surface of the sealing plate (212), the first spring rod (213) is fixedly provided at the four corners of the front surface of the sealing plate (212), a pressing plate (214) slidably connected to the first spring rod (213) is elastically slidably provided on the front side of the sealing plate (212), and a handle is fixedly provided on the front surface of the pressing plate (214); The supporting assembly (22) comprises a supporting frame (221), a filter frame (222) and a filter cloth (223); the rear surface of the sealing plate (212) is fixedly provided with the supporting frame (221) via a plate member 1, the filter frame (222) is hooked inside the supporting frame (221), and the filter cloth (223) is fixedly provided inside the filter frame (222).

4. A precipitation treatment equipment for preparing lithium carbonate according to claim 2, characterized in that: The locking assembly (23) comprises a sliding seat (231), a positioning hole (232), a sliding rod (233), a plug hole (234) and a latch (235); the sliding seat (231) is fixedly arranged on the side surface of the washing box (1); a positioning hole (232) is provided on a side of the sliding seat (231) away from the center of the washing box (1); a sliding rod (233) is slidably arranged in the sliding seat (231); a front end of the sliding rod (233) is fixedly connected to a rear surface of a pressing plate (214); a plug hole (234) is provided on the surface of the sliding rod (233); and a latch (235) is inserted into both the plug hole (234) and the positioning hole (232).

5. A precipitation treatment equipment for preparing lithium carbonate according to claim 1, characterized in that: The rinsing assembly (32) comprises a first concentrating pipe (321), a rinsing head (322) and a first sliding pipe (323); the first concentrating pipe (321) is fixedly arranged on the rear side of the lower surface of the movable frame (31); a plurality of rinsing heads (322) are evenly fixedly arranged on the lower surface of the first concentrating pipe (321); a first sliding pipe (323) slidably connected to the washing box (1) is fixedly arranged on the rear side of the first concentrating pipe (321) in a symmetrical manner; the first sliding pipe (323) is fixedly connected to the first concentrating pipe (321) and the movable frame (31) via an L-shaped pipe at the front end.

6. A precipitation treatment equipment for preparing lithium carbonate according to claim 5, characterized in that: The scattering assembly (33) comprises a second centralizing pipe (331), a second sliding pipe (332), a connecting plate (333), a high-pressure spray head (334), a lifting pipe (335) and a driven shaft (336); the second centralizing pipe (331) is fixedly arranged on the front side of the upper surface of the moving frame (31); the second sliding pipe (332) slidably connected to the washing box (1) is fixedly arranged on the rear side of the second centralizing pipe (331) in a symmetrical manner; the second sliding pipe (332) is fixedly connected to the rear end of the first sliding pipe (323) via a connecting plate (333); a plurality of high-pressure spray heads (334) are evenly fixedly arranged on the lower surface of the second centralizing pipe (331); lifting pipes (335) are slidably arranged on the surfaces of the high-pressure spray heads (334); the lifting pipes (335) are fixedly connected to each other via a second plate; and driven shafts (336) are fixedly arranged on the sides of the lifting pipes (335) at both ends of the second centralizing pipe (331) away from the center of the second centralizing pipe (331).

7. A precipitation treatment equipment for preparing lithium carbonate according to claim 1, characterized in that: The driving assembly (42) comprises a first motor (421), a first half gear (422) and a second half gear (423); the first motor (421) is fixedly arranged on the upper surface of the driving frame (41); the first half gear (422) is fixedly arranged on the driving end of the first motor (421); the second half gear (423) is fixedly arranged on the lower surface of the first half gear (422) via a rod; and two groups of symmetrically distributed teeth with the same number of teeth are fixedly arranged on the surface of the second half gear (423).

8. A precipitation treatment equipment for preparing lithium carbonate according to claim 6, characterized in that: The telescopic linkage assembly (43) comprises a first gear (431), a first bevel gear (432), a fixing frame (433), a threaded sleeve (434), a second bevel gear (435) and a threaded rod (436); the driving frame (41) is rotatably provided with a first gear (431) meshing with the first half gear (422); the first bevel gear (432) is fixedly provided on the upper surface of the first gear (431) via a second rod; a fixing frame (433) is fixedly provided on the upper side of the rear surface of the washing box (1); a threaded sleeve (434) is rotatably provided at the rear end of the fixing frame (433); a second bevel gear (435) meshing with the first bevel gear (432) is fixedly provided on the rear side of the threaded sleeve (434); the threaded sleeve (434) is internally threadedly connected 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).

9. A precipitation treatment equipment for preparing lithium carbonate according to claim 7, characterized in that: The reciprocating linkage assembly (44) comprises a spring clamp (441), a gear portion (442) and a linkage portion (443); the rear end of the upper surface of the driving frame (41) is fixedly provided with a spring clamp (441) via a plate member 3, the front side of the spring clamp (441) is provided with a gear portion (442) for transmission in cooperation with the driving assembly (42), and the lower side of the gear portion (442) is provided with a linkage portion (443) for transmission in cooperation with the lifting transmission assembly (45); The gear portion (442) comprises a second gear (4421), a clamping plate (4422), a clamping groove (4423), a driving rotating plate (4424) and a driving shaft (4425); the driving frame (41) is rotatably provided with a second gear (4421) that meshes with the first half gear (422) for transmission; the upper surface of the second gear (4421) is fixedly provided with a clamping plate (4422); the surface of the clamping plate (4422) is provided with a clamping groove (4423) that is engaged with the spring clamp (441); the lower surface of the second gear (4421) is fixedly provided with a driving rotating plate (4424) via a rod member 3; the lower surface of the driving rotating plate (4424) is eccentrically fixedly provided with a driving shaft (4425); The linkage part (443) comprises a T-shaped slide plate (4431), a linear groove (4432), a driving sleeve (4433), a third gear (4434), a driving groove (4435), a lifting rod (4436) and a sliding shaft (4437); the lower side of the driving rotating plate (4424) is slidably provided with a T-shaped slide plate (4431), the rear end of the T-shaped slide plate (4431) is fixedly provided with a plate member 4 slidably connected to the driving frame (41), the rear end of the upper surface of the T-shaped slide plate (4431) is provided with a linear groove (4432) slidably matched with the driving shaft (4425), and the T-shaped slide plate (4431) is provided with a linear groove (4432) slidably matched with the driving shaft (4425). 1) is rotatably provided with a driving sleeve (4433) at the front end thereof, a third gear (4434) meshing with the second half gear (423) is fixedly provided at the upper end of the driving sleeve (4433), a driving groove (4435) is provided on the inner surface of the driving sleeve (4433), the driving groove (4435) is composed of a V-shaped inclined groove and an annular groove, a lifting rod (4436) slidably connected to the front end of the T-shaped slide plate (4431) is slidably provided in the driving sleeve (4433), and a sliding shaft (4437) slidably matched with the driving groove (4435) is fixedly provided on the upper side of the surface of the lifting rod (4436).

10. A precipitation treatment equipment for preparing lithium carbonate according to claim 9, characterized in that: The lifting transmission assembly (45) comprises a linkage plate (451), a driven plate (452), a docking hole (453), a linkage rod (454), a transmission plate (455), an oblique groove (456) and a second spring rod (457); a linkage plate (451) that moves forward and backward is arranged on the lower side of the driving frame (41); a driven plate (452) is fixedly arranged on the lower surface of the linkage plate (451); a plurality of docking holes (453) that are engaged with the lifting plug rod (4436) are evenly arranged on the surface of the driven plate (452); 53), a linkage rod (454) slidably connected to the washing box (1) is symmetrically fixedly arranged on the front surface of the linkage plate (451), a transmission plate (455) is fixedly arranged at the front end of each linkage rod (454), an oblique groove (456) slidably engaged with the driven shaft (336) is formed on the surface of the transmission plate (455), a second spring rod (457) is elastically slidably arranged at the upper end of the transmission plate (455), and the rear end of the second spring rod (457) is fixedly connected to the moving frame (31) via a plate member 5.

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