Filtering, washing and drying three-in-one device for battery grade lithium carbonate

Abstract

The utility model provides a filtering, washing and drying three-in-one device for battery grade lithium carbonate, which comprises a tank body, a plurality of seal head heating medium inlets and outlets, a tank body heating medium inlet and outlet, a lower temperature measuring port and a sampling port are respectively arranged on the surface of the tank body, a side discharge port is arranged on one side of the side of the tank body, and one end of the side discharge port is connected with a pipeline. The tank cover is arranged at the top of the tank body, a mirror inlet hole is formed in one side of the surface of the tank cover, a pressure sensor port is formed in the surface of the tank cover and located on one side of the mirror inlet hole, and the mounting frame is mounted on one side of the surface of the tank cover. According to the filtering, washing and drying three-in-one device for the battery-grade lithium carbonate, provided by the utility model, the preparation of the lithium carbonate is energy-saving and environment-friendly, the labor is reduced to a greater extent, and the production efficiency is improved. According to the device, a traditional preparation device is changed, lithium carbonate slurry obtained after lithium precipitation, filtering, washing and drying are integrated, resources can be saved, and meanwhile lithium carbonate with high purity can be obtained.

Description

Technical Field

[0001] The utility model relates to the field of chemical industry, in particular to a three-in-one device for filtering, washing and drying battery-grade lithium carbonate. Background Art

[0002] Lithium carbonate is an inorganic compound with the chemical formula Li2CO3 and a molecular weight of 73.89. It is a colorless monoclinic crystal, slightly soluble in water and dilute acid, and insoluble in ethanol and acetone.

[0003] The current production of lithium carbonate involves three processes: filtering, washing and drying. However, the current production of lithium carbonate requires the installation of separate equipment for different processes, and also requires personnel familiar with the different equipment to operate. This method increases the complexity of the process and also affects the speed of lithium carbonate production.

[0004] Therefore, it is necessary to provide a three-in-one device for filtering, washing and drying battery-grade lithium carbonate to solve the above technical problems. Utility Model Content

[0005] The utility model provides a three-in-one device for filtering, washing and drying battery-grade lithium carbonate, which solves the problem that the current production of lithium carbonate requires the installation of separate equipment for different processes and the operation of personnel familiar with different equipment, which increases the complexity of the process and affects the speed of lithium carbonate production.

[0006] In order to solve the above technical problems, the utility model provides a three-in-one device for filtering, washing and drying battery-grade lithium carbonate, comprising:

[0007] A tank body, wherein a plurality of end-cap heating medium inlets and outlets, a tank body heating medium inlets and outlets, a lower temperature measuring port and a sampling port are respectively installed on the surface of the tank body;

[0008] A side discharge port, the side discharge port being installed on one side of the tank body, one end of the side discharge port being connected to a pipeline;

[0009] A tank cover, the tank cover is arranged on the top of the tank body, a mirror entry hole is installed on one side of the surface of the tank cover, and a pressure sensor port is arranged on the surface of the tank cover and located on one side of the mirror entry hole;

[0010] A mounting frame, the mounting frame being mounted on one side of the tank cover surface;

[0011] A dust port is arranged on one side of the surface of the tank cover.

[0012] Preferably, a delivery pipe is provided at the bottom of the tank body, and a filtrate outlet is provided on one side of the delivery pipe.

[0013] Preferably, discharge ports are provided on both sides of the side discharge port.

[0014] Preferably, paddles are provided inside the tank body, and a base is installed at the bottom of the tank body.

[0015] Preferably, a protective assembly is provided between the tank body and the conveying pipe, and the protective assembly includes two threaded rods, and the surfaces of the two threaded rods are both provided with limit blocks, and the surfaces of the threaded rods and the side opposite to the limit blocks are provided with mounting sleeves.

[0016] Preferably, a protective cover is connected between the two mounting sleeves via a connecting block.

[0017] Preferably, a threaded sleeve is threadedly connected on the surface of the threaded rod and on one side of the mounting sleeve.

[0018] Compared with the related art, the three-in-one filtering, washing and drying device for battery-grade lithium carbonate provided by the utility model has the following beneficial effects:

[0019] The utility model provides a three-in-one device for filtering, washing and drying battery-grade lithium carbonate. The preparation of the lithium carbonate is energy-saving and environmentally friendly, and reduces labor to a large extent and improves production efficiency. The device changes the traditional preparation device, and filters, washes and dries the lithium carbonate slurry obtained after lithium precipitation, which can not only save resources, but also obtain lithium carbonate with higher purity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a first embodiment of a three-in-one device for filtering, washing and drying battery-grade lithium carbonate provided by the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the entire internal structure of the device shown;

[0022] Figure 3 A schematic structural diagram of a second embodiment of a three-in-one device for filtering, washing and drying battery-grade lithium carbonate provided by the utility model;

[0023] Figure 4 for Figure 3 An enlarged schematic diagram of part A is shown.

[0024] Numbers in the figure: 1, tank body, 2, heating medium inlet and outlet of the head, 3, heating medium inlet and outlet of the tank body, 4, sampling port, 5, lower temperature measuring port, 6, side discharge port, 7, pipeline, 8, discharge port, 9, tank cover, 10, mirror entry hole, 11, pressure sensor port, 12, dust port, 13, mounting frame, 14, conveying pipe, 15, filtrate outlet, 16, base, 17, paddle,

[0025] 18. Protection assembly, 181. Threaded rod, 182. Limit block, 183. Mounting sleeve, 184. Protection cover, 185. Threaded sleeve. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0027] First embodiment

[0028] Please refer to Figure 1 and Figure 2 ,in, Figure 1 A schematic structural diagram of a first embodiment of a three-in-one device for filtering, washing and drying battery-grade lithium carbonate provided by the utility model; Figure 2 for Figure 1 A three-in-one device for filtering, washing and drying battery-grade lithium carbonate, comprising:

[0029] A tank body 1, wherein a plurality of end-cap heating medium inlet and outlet 2, a tank heating medium inlet and outlet 3, a lower temperature measuring port 5 and a sampling port 4 are respectively installed on the surface of the tank body 1;

[0030] A side discharge port 6, wherein the side discharge port 6 is installed on one side of the tank body 1, and one end of the side discharge port 6 is connected to a pipe 7;

[0031] A tank cover 9, the tank cover 9 is arranged on the top of the tank body 1, a mirror entry hole 10 is installed on one side of the surface of the tank cover 9, and a pressure sensor port 11 is arranged on the surface of the tank cover 9 and on one side of the mirror entry hole 10;

[0032] A mounting frame 13, wherein the mounting frame 13 is mounted on one side of the surface of the tank cover 9;

[0033] The dust port 12 is arranged on one side of the surface of the tank cover 9 .

[0034] A delivery pipe 14 is disposed at the bottom of the tank body 1 , and a filtrate outlet 15 is disposed at one side of the delivery pipe 14 .

[0035] Feeding ports 8 are provided on both sides of the side discharge port 6 .

[0036] A paddle 17 is disposed inside the tank body 1 , and a base 16 is installed at the bottom of the tank body 1 .

[0037] The tank body is composed of a head, a cylinder and a filter chassis, an integrated structure.

[0038] The stirring blades of the stirring system adopt double S-shaped blades and can be heated, which ensures the minimum damage to the lithium carbonate crystal form, while maximizing the heating area and increasing the discharge speed.

[0039] The filtration system achieves solid-liquid separation under vacuum or pressurized conditions, and the filter cake is flat.

[0040] The filter chassis can be disassembled and fixed by bolts. The filter chassis can be heated to maintain a certain temperature during drying to avoid crystallization of the filtrate.

[0041] For heating and heat preservation, the insulation material used is aluminum silicate.

[0042] The equipment consists of a tank body, a stirring system, a filtering system, a side discharge system, a heating and heat preservation system, a hydraulic lifting system and a control system. The equipment tank body is an integrated structure, and the tank body wall adopts a pipe jacket to heat and dry the material. The filter chassis medium adopts a multi-layer metal sintered mesh. The control system adopts PLC control and on-site HMI operation, which is simple to operate and easy to maintain.

[0043] The three-in-one filtering, washing and drying equipment is mainly composed of three-in-one, heat exchanger, valves, instruments and corresponding control systems.

[0044] Before starting, check that all valves and equipment are in normal working condition;

[0045] Feeding: After the materials react in the reactor, lithium carbonate slurry is obtained, which is then pumped into a high-level tank for temporary storage. The high-level tank uses the high position to drop the materials into the three-in-one.

[0046] Filter pressing: After the feeding is completed, the compressed air is introduced into the three-in-one to filter the material. The mother liquid is discharged from the bottom drain port of the three-in-one to the mother liquid temporary storage tank. The filter pressing is stopped until cracks appear in the material, and the breathing valve of the three-in-one is opened to restore the normal pressure.

[0047] Washing: After filtration, add hot pure water to the three-in-one machine. While adding water, start the stirring paddle to stir the material, and wash it to remove impurities and residual solvents in the material. According to the test results after washing, multiple washings can be performed until the test indicators are qualified. The water from the second and third washes can be used for the first and second washes of the following materials.

[0048] Drying: The drying heat sources include hot compressed air heating, stirring paddle heating and jacket heating. The materials in the three-in-one are heated by these three heating methods, and the exhaust gas is discharged at the bottom.

[0049] Discharging: When the material reaches the moisture requirement, it is automatically discharged through the stirring paddle.

[0050] The obtained material meets the standards of battery-grade lithium carbonate.

[0051] Compared with the related art, the three-in-one filtering, washing and drying device for battery-grade lithium carbonate provided by the utility model has the following beneficial effects:

[0052] The utility model provides a three-in-one device for filtering, washing and drying battery-grade lithium carbonate. The preparation of the lithium carbonate is energy-saving and environmentally friendly, and reduces labor to a large extent and improves production efficiency. The device changes the traditional preparation device, and filters, washes and dries the lithium carbonate slurry obtained after lithium precipitation, which can not only save resources, but also obtain lithium carbonate with higher purity.

[0053] Second embodiment

[0054] Please refer to Figure 3 and Figure 4 Based on the three-in-one device for filtering, washing and drying battery-grade lithium carbonate provided in the first embodiment of the present application, the second embodiment of the present application proposes another three-in-one device for filtering, washing and drying battery-grade lithium carbonate. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0055] Specifically, the difference of the three-in-one filtering, washing and drying device for battery-grade lithium carbonate provided in the second embodiment of the present application is that, in a three-in-one filtering, washing and drying device for battery-grade lithium carbonate, a protective component 18 is arranged between the tank body 1 and the conveying pipe 14, and the protective component 18 includes two threaded rods 181, and the surfaces of the two threaded rods 181 are both provided with limit blocks 182, and the surface of the threaded rod 181 and the side opposite to the limit block 182 are provided with an installation sleeve 183.

[0056] A protective cover 184 is connected between the two installation sleeves 183 via a connecting block.

[0057] A threaded sleeve 185 is threadedly connected on a surface of the threaded rod 181 and located on one side of the mounting sleeve 183 .

[0058] The use of the limiting block 182 can locate the position where the installation sleeve 183 is installed, and the two threaded rods 181 are symmetrically connected to the left and right sides of the bottom of the tank body 1.

[0059] The working principle of the three-in-one device for filtering, washing and drying battery-grade lithium carbonate provided by the utility model is as follows:

[0060] When in use, when protecting the delivery pipe 14 at the bottom of the tank body 1, first put the protective cover 184 with the installation sleeve 183 on the surface of the delivery pipe 14 and then put the installation sleeve 183 on the surface of the threaded rod 181. After the protective cover 184 is put on, use the threaded sleeve 185 to threadably connect it to the threaded rod 11.

[0061] Compared with the related art, the three-in-one filtering, washing and drying device for battery-grade lithium carbonate provided by the utility model has the following beneficial effects:

[0062] The utility model provides a three-in-one device for filtering, washing and drying battery-grade lithium carbonate. A protection component 18 is arranged between a tank body 1 and a delivery pipe 14 to protect the delivery pipe 14 exposed to the outside, thereby preventing deformation and damage caused by external collision.

[0063] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A three-in-one device for filtering, washing and drying battery-grade lithium carbonate, characterized in that: include: A tank body, wherein a plurality of end-cap heating medium inlets and outlets, a tank body heating medium inlets and outlets, a lower temperature measuring port and a sampling port are respectively installed on the surface of the tank body; A side discharge port, the side discharge port being installed on one side of the tank body, one end of the side discharge port being connected to a pipeline; A tank cover, the tank cover is arranged on the top of the tank body, a mirror entry hole is installed on one side of the surface of the tank cover, and a pressure sensor port is arranged on the surface of the tank cover and located on one side of the mirror entry hole; A mounting frame, the mounting frame being mounted on one side of the tank cover surface; A dust port is arranged on one side of the surface of the tank cover.

2. The three-in-one device for filtering, washing and drying battery-grade lithium carbonate according to claim 1, characterized in that: A delivery pipe is arranged at the bottom of the tank body, and a filtrate outlet is arranged at one side of the delivery pipe.

3. The three-in-one device for filtering, washing and drying battery-grade lithium carbonate according to claim 1, characterized in that: Both sides of the side discharge port are provided with discharge ports.

4. The three-in-one device for filtering, washing and drying battery-grade lithium carbonate according to claim 1, characterized in that: The interior of the tank body is provided with paddles, and the bottom of the tank body is provided with a base.

5. The three-in-one device for filtering, washing and drying battery-grade lithium carbonate according to claim 2, characterized in that: A protection assembly is arranged between the tank body and the conveying pipe, and the protection assembly includes two threaded rods, and the surfaces of the two threaded rods are sleeved with limit blocks, and the surfaces of the threaded rods and the side opposite to the limit blocks are sleeved with installation sleeves.

6. The three-in-one device for filtering, washing and drying battery-grade lithium carbonate according to claim 5, characterized in that: A protective cover is connected between the two installation sleeves via a connecting block.

7. The three-in-one device for filtering, washing and drying battery-grade lithium carbonate according to claim 5, characterized in that: A threaded sleeve is threadedly connected on the surface of the threaded rod and on one side of the mounting sleeve.

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