Lithium carbonate batching tank with stirring device

Abstract

A lithium carbonate batching tank with a stirring device comprises a stirring barrel, a stirring shaft and a power motor, the power motor is installed on a supporting frame above the stirring barrel, the stirring shaft is arranged between the stirring barrel and the power motor, the upper end of the stirring shaft is connected with the power motor, and the lower end of the stirring shaft extends into the stirring barrel. An inner cavity of the shell is a stirring tank of the stirring barrel, a corresponding tank cover is arranged at an upper opening of the shell, and the lower end of the stirring shaft penetrates through the tank cover and extends into the stirring tank. According to the utility model, the batching is more uniform and accurate, the used time is shorter, the batching is safer and more environment-friendly, the batching is more accurate, and the service life is longer.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical equipment, and particularly relates to a novel batching tank with a stirring device for lithium carbonate production. Background Art

[0002] In the process of lithium carbonate production, the performance of the batching device directly affects the product quality and production efficiency. Traditional batching devices have problems such as uneven batching, inaccurate calculation, and imprecise reaction process control. Moreover, in traditional batching, the control of the amount of each raw material mainly relies on manual labor, resulting in a long batching time. Nowadays, it is difficult to meet the requirements of modern industrial production. Acid mist is easily generated during the lithium carbonate batching process, and gases or solutions in traditional batching tanks are prone to overflow, corroding the surrounding environment and equipment. This will not only affect the environmental hygiene around the working surface but also the service life of the equipment. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a lithium carbonate batching tank with a stirring device that is more precise, safe, and hygienic in batching, so as to solve the technical problems of uneven batching, inaccurate calculation, imprecise reaction process control, and long batching time of existing batching devices.

[0004] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0005] A lithium carbonate batching tank with a stirring device includes a stirring barrel, a stirring shaft, and a power motor. The power motor is installed on a support frame above the stirring barrel. The stirring shaft is arranged between the stirring barrel and the power motor. Its upper end is connected to the power motor, and its lower end extends into the stirring barrel. The stirring barrel includes a hollow shell with an upper opening. The inner cavity of the shell is the stirring tank of the stirring barrel. A corresponding tank cover is provided at the upper opening of the shell. The lower end of the stirring shaft passes through the tank cover and extends into the stirring tank.

[0006] Further, the stirring shaft includes a shaft rod. The upper end of the shaft rod is connected to the power motor, and its lower end extends into and is suspended in the stirring tank. Corresponding stirring blades are provided on the shaft rod. An inner shell with a hollow interior and upper and lower openings is provided in the stirring tank. The inner shell is connected to the tank cover through a support above it, so as to be suspended in the stirring tank. The inner shell divides the stirring tank into an inner tank and an outer tank. The stirring blades are located in the inner tank. Corresponding turbulence baffles are provided on the inner side wall of the shell.

[0007] Further, multiple stages of stirring blades are sequentially arranged on the shaft rod from top to bottom, including upper blades, middle blades, and lower blades. The upper blades are located in the upper part of the inner tank and are horizontally arranged plate-like blades. The middle blades are located in the middle and lower parts of the inner tank and are gradually inclined downward from the inner circle to the outer circle along the radial direction. The lower blades are located at the bottom of the inner tank and are dispersive disc-like blades.

[0008] Furthermore, a fixed and sealed connection is provided between the housing and the tank cover. The stirring tank is provided with corresponding overflow ports and discharge ports. The overflow port is arranged at the upper end of the side wall of the housing, and the discharge port is arranged at the lower end of the side wall of the housing. The tank cover is provided with a plurality of separate openings, including a first inlet for feeding lithium carbonate, a second inlet for feeding hydrochloric acid, and two spare ports. Additionally, the tank cover is also provided with an observation port for real-time observation, an exhaust port for gas discharge, a pH measurement port for real-time detection of the pH value of the material in the stirring tank, and an air inlet for introducing air. All the openings on the stirring tank, including the overflow port and the discharge port, are in a closed state when not in use. A corresponding seal is provided at the connection between the tank cover and the stirring shaft.

[0009] Furthermore, the seal includes an upper component and a lower component. The upper component is sleeved on the shaft rod of the stirring shaft, and the shaft rod passes through the center of the upper component. A fixed and sealed connection is provided between the two. A corresponding annular convex is provided at the bottom of the outer circle of the upper component. The lower component is a hollow ring, and its outer circle is fixedly and sealedly connected to the tank cover. An annular groove corresponding to the annular convex of the upper component is provided on the top surface of the upper component. During use, after the annular convex and the annular groove are correspondingly installed, sealing water is injected into the annular groove. At this time, a slidable connection is provided between the annular convex and the annular groove.

[0010] Furthermore, corresponding high-precision metering devices are provided at the first inlet, the second inlet, and the spare ports, all of which are metering inlets, and the three and the pH measurement port are all interconnected.

[0011] Furthermore, a corresponding speed reducer is provided between the power motor and the stirring shaft. The speed reducer is fixed above the support frame through a corresponding frame. The upper end of the speed reducer is connected to the power motor, and the lower end is connected to the stirring shaft through a corresponding coupling.

[0012] Furthermore, the coupling includes a speed reducer coupling and a stirring shaft coupling. The speed reducer coupling is installed at the lower end of the speed reducer, and the stirring shaft coupling is installed at the upper end of the shaft rod of the stirring shaft. The upper end of the stirring shaft coupling and the lower end of the speed reducer coupling are correspondingly and cooperatively connected.

[0013] The lithium carbonate batching tank with a stirring device of the present utility model improves the rate of the dissolution reaction of the material during the batching process through the special setting of the stirring shaft, improves the batching speed, and the mixing of the material is more uniform and thorough. The setting of the sealing performance improves the safety and environmental protection of the batching process, reduces the damage rate to the surrounding environment and equipment, improves the service life of the equipment, and the batching accuracy of the lithium carbonate batching tank with a stirring device of the present utility model is higher, its batching process is more refined, the batching time is shorter, and it is more suitable for modern chemical production. Description of the Drawings

[0014] Figure 1This is a schematic top view structure diagram of the stirring barrel of the present utility model;

[0015] Figure 2 This is a schematic diagram of the present utility model in the A-A direction;

[0016] Description of the marks in the figure: 1. Stirring barrel; 11. Stirring tank; 111. Inner tank; 112. Outer tank; 12. Shell; 13. Tank cover; 14. Inner shell; 15. Turbulence baffle; 16. Overflow port; 17. Discharge port; 2. Stirring shaft; 21. Shaft rod; 22. Stirring shaft coupling; 3. Power motor; 31. Reducer; 32. Reducer coupling; 4. Support frame; 41. Bracket; 42. Frame; 5. Sealing element; 51. Upper part; 52. Lower part; 53. Sealing water; 6. First inlet; 61. Second inlet; 62. Spare port; 63. Observation port; 64. Exhaust port; 65. PH measurement port; 66. Air inlet; 7. Stirring blade; 71. Upper blade; 72. Middle blade; 73. Lower blade. Detailed implementation mode

[0017] In order to better understand the purpose, structure and function of the present utility model, the following further describes in detail a lithium carbonate batching tank with a stirring device of the present utility model in conjunction with the attached drawings.

[0018] As Figure 1-2 shown, the lithium carbonate batching tank with a stirring device of the present utility model includes a stirring barrel 1, a stirring shaft 2 and a power motor 3. A corresponding support frame 4 is provided above the stirring barrel 1, and the power motor 3 corresponding to the stirring barrel 1 is installed on the support frame 4. The stirring shaft 2 is arranged between the stirring barrel 1 and the power motor 3, its upper end is connected to the power motor 3, and its lower end extends into the stirring barrel 1. The power motor 3 provides a rotational force for the stirring shaft 2, thereby enabling the stirring shaft 2 to stir the materials in the stirring tank 11.

[0019] The stirring tank 1 includes a housing 12 and a tank cover 13. The housing 12 is a barrel-shaped body with a hollow interior and an open upper end. The hollow inner cavity of the housing 12 is the stirring tank 11 of the stirring tank 1. The tank cover 13 is arranged at the upper opening of the housing 12, and the two are fixedly and sealedly connected. The lower end of the stirring shaft 2 passes through the tank cover 13 and extends into the stirring tank 11. In this embodiment, the axis of the stirring shaft 2 coincides with the axis of the stirring tank 11. A corresponding seal 5 is provided at the connection between the tank cover 13 and the stirring shaft 2 to prevent gas or solution in the stirring tank 11 from overflowing through the gap at the connection between the tank cover 13 and the stirring shaft 2, which may damage the surrounding working environment or equipment. A corresponding inner housing 14 is provided in the stirring tank 11. The inner housing 14 is a tubular body with a hollow interior and open upper and lower ends. The inner housing 14 is connected to the tank cover 13 through a corresponding bracket 41 above it, so as to be suspended in the stirring tank 11. The inner housing 14 divides the stirring tank 11 into an inner tank 111 and an outer tank 112. The lower end of the stirring shaft 2 is located in the inner tank 111. When the stirring shaft 2 rotates to stir the materials in the inner tank 111, the materials in the inner tank 111 and the materials in the outer tank 112 can form an internal and external circulation, so that the stirring and dissolution of the materials are faster and more uniform. Turbulence baffles 15 are provided in the outer tank 112. The turbulence baffles 15 are installed on the inner side wall of the housing 12, which helps to guide the flow direction of the material solution in the stirring tank 11, can accelerate the flow rate of the materials between the inner tank 111 and the outer tank 112, and improves the mixing efficiency of the material solution. A plurality of separate openings are provided on the tank cover 13. Each opening is in a closed state when not in use. The openings are convenient for the separate feeding of various different raw materials and the discharge of gas in the stirring tank 11. It includes a first inlet 6, a second inlet 61, an observation port 63, an exhaust port 64, a PH measurement port 65, an air inlet 66 and two spare ports 62. In this embodiment, the raw materials of lithium carbonate mainly include lithium carbonate and hydrochloric acid, and the two are mixed to form a corresponding solution. Therefore, the first inlet 6 in the opening is externally connected to a corresponding lithium carbonate feeding device for feeding lithium carbonate, and the second inlet 61 is externally connected to a corresponding hydrochloric acid feeding device for feeding hydrochloric acid solution. Moreover, the first inlet 6, the second inlet 61 and the spare port 62 are all metering inlets, and corresponding high-precision metering devices are provided, which can real-time measure the raw materials entering the stirring tank 11 through the corresponding openings, so that the staff can real-time control the feeding amount of each raw material. When other raw materials need to be added, the corresponding feeding device can be externally connected through the spare port 62, and then the corresponding raw materials can be added to the stirring tank 11. During the stirring process, some gas will be generated, and this gas can be discharged through the exhaust port 64. A corresponding gas treatment device can be externally connected through the exhaust port 64 to prevent the gas from damaging the surrounding environment or equipment. A corresponding PH meter is provided at the PH measurement port 65, which can real-time detect the PH value of the materials in the stirring tank 11, so as to real-time adjust the feeding amount of the raw materials when the PH value deviates from the set range, thereby ensuring the stability of the batching process. The air inlet 66 is externally connected to a corresponding air supply device, and the air supply device provides compressed air for the stirring tank 11.Compressed air enters the stirring tank 11 through the air inlet 66, causing the inside of the stirring tank 11 to be in a pressurized state. The material solution in the stirring tank 11 can react and dissolve more quickly and fully as the stirring shaft 2 rotates under the pressure. The observation port 63 is provided to facilitate the staff to observe the material reaction in the stirring tank 11 in real time, so as to control the batching process more precisely. The stirring barrel 1 is also provided with corresponding overflow ports 16 and discharge ports 17. The overflow port 16 is arranged at the upper end of the side wall of the housing 12. When the solution in the stirring tank 11 is too much, it can overflow through the overflow port 16. The discharge port 17 is arranged at the lower end of the side wall of the housing 12. After batching is completed, the corresponding finished material can be discharged from the stirring tank 11 through the discharge port 17 for subsequent use.,

[0020] The stirring shaft 2 includes a shaft rod 21. The upper end of the shaft rod 21 is connected to the power motor 3, and its lower end extends into the stirring tank 11. The length of the shaft rod 21 corresponds to the depth of the stirring tank 11, and its bottom end has no contact with the bottom surface of the stirring tank 11. It is suspended in the stirring tank 11. In this embodiment, the bottom end of the shaft rod 21 corresponds to the bottom end of the inner housing 14. The shaft rod 21 is provided with corresponding stirring blades 7. The stirring blades 7 are located in the inner tank 111. Multiple stages of stirring blades 7 are sequentially arranged on the shaft rod 21 from top to bottom. In this embodiment, the stirring blades 7 on the shaft rod 21 are three stages, including an upper blade 71, a middle blade 72, and a lower blade 73. The upper blade 71 is located in the upper part of the inner tank 111, but it does not exceed the upper end of the inner housing 14 in the stirring tank 11. It is a horizontally arranged plate-shaped blade. The upper blade 71 rotates with the shaft rod 21 to disperse and stir the materials in the stirring tank 11. The middle blade 72 is located in the middle and lower part of the inner tank 111. It is arranged in a shape that gradually inclines downward from the inner circle to the outer circle along the radial direction. The middle blade 72 rotates with the shaft rod 21 to form a downward pressure on the materials in the inner tank 111, causing the material solution to flow downward. The lower blade 73 is located at the bottom of the inner tank 111. It is a dispersed disc-shaped blade. The lower blade 73 rotates with the shaft rod 21 to quickly discharge the material solution flowing downward under the action of the middle blade 72 from the inner tank 111. As the shaft rod 21 rotates, under the downward pressure of the middle blade 72 and the cooperation of the upper blade 71 and the lower blade 73, a vortex-shaped gap is formed at the top of the inner tank 111. The material solution between the inner tank 111 and the outer tank 112 forms a flow similar to a magnetic field, making the material reaction dissolve more quickly, fully, and evenly, and improving the production efficiency of the batching tank to a certain extent.

[0021] The seal 5 is provided on the tank cover 13. In this embodiment, a water sealing method is adopted. The seal 5 is a water seal, which includes an upper part 51 and a lower part 52. The upper part 51 is sleeved on the shaft rod 21 of the stirring shaft 2, and the shaft rod 21 passes through the center of the upper part 51. The upper part 51 is sleeved around the periphery of the shaft rod 21, and the two are fixedly and sealedly connected. A corresponding ring convex is provided at the bottom of the outer circle of the upper part 51. The upper part 51 is hermetically sealed with the lower part 52 through the ring convex. The lower part 52 is installed on the tank cover 13 and is an annular shape with a hollow interior. Its outer circle is fixedly and sealedly connected to the tank cover 13. An annular groove corresponding to the ring convex of the upper part 51 is provided on the top surface of the upper part 51. During use, after the ring convex and the annular groove are correspondingly installed, a corresponding amount of sealing water 53 is injected into the annular groove. At this time, the seal 5 can play a sealing role. The ring convex and the annular groove are not fixedly connected, and the ring convex can slide around the center in the annular groove as the stirring shaft 2 rotates, so that the seal 5 can play a sealing role without affecting the operation of the stirring shaft 2.

[0022] Further, a corresponding speed reducer 31 is provided between the lower parts of the power motor 3. The speed reducer 31 is fixed above the support frame 4 through a corresponding frame 42. The speed reducer 31 is provided between the power motor 3 and the stirring shaft 2. Its upper end is connected to the power motor 3, and its lower end is correspondingly connected to the stirring shaft 2. The setting of the speed reducer 31 makes the cooperation between the stirring shaft 2 and the power motor 3 more in line with the requirements of the batching tank, and the staff can control the stirring speed more precisely.

[0023] Further, the speed reducer 31 and the stirring shaft 2 are connected through a coupling. The coupling includes a speed reducer coupling 32 and a stirring shaft coupling 22. The speed reducer 31 coupling is installed at the lower end of the speed reducer 31, and the stirring shaft 2 coupling is installed at the upper end of the shaft rod 21 of the stirring shaft 2. The upper end of the stirring shaft 2 coupling and the lower end of the speed reducer 31 coupling are correspondingly and cooperatively connected. The use of the coupling makes the connection between the speed reducer 31 and the stirring shaft 2 more stable.

[0024] Further, the first inlet 6, the second inlet 61, the spare port 62 and the PH metering port 65 are interrelated. According to the monitoring situation of the material solution in the stirring tank 11 by the PH metering port 65, the first inlet 6, the second inlet 61 and the spare port 62 perform real-time automatic adjustment of the feeding of their respective corresponding raw materials.

[0025] Further, the stirring barrel 1 is made of wear-resistant and corrosion-resistant materials. All openings on the stirring barrel 1, including the overflow port 16 and the discharge port 17, are in a closed state when not in use, and their connections with various connecting components are all sealed connections to prevent leakage during the operation of the batching tank.

[0026] During operation, first, corresponding lithium carbonate and hydrochloric acid solution are added into the stirring tank 11 through the first inlet 6 and the second inlet 61. Then, corresponding compressed air is filled into the stirring tank 11 through the air inlet 66. The power motor 3 is started. Under its action, the stirring shaft 2 drives the stirring blades 7 to rotate, thereby stirring the materials in the stirring tank 11. With the cooperation of other components in the stirring tank 11, the raw materials in the stirring tank 11 can react and dissolve fully. Finally, the obtained finished materials are discharged from the discharge port 17 of the stirring tank 11 for subsequent transportation and use. Thus, the primary batching of lithium carbonate is completed. During this batching process, the pH value of the materials in the stirring tank 11 can be monitored in real time through the pH measuring port 65, and the reaction condition of the materials can be observed in real time through the observation window. According to the observation of the pH value and the reaction condition of the materials, the raw material input in the stirring tank 11 is adjusted in real time to prepare more qualified finished materials.

[0027] The lithium carbonate batching tank with a stirring device of the present utility model enables the material solution in the stirring tank 11 to react and mix more quickly, evenly, and fully during the batching process through the special setting of the multi-stage stirring blades 7 and the mutual cooperation of the inner shell 14, shortening the batching time. Moreover, the use of the seal 5 improves the safety and environmental protection of the batching tank, reduces the damage rate of the reaction gas to the surrounding environment and equipment, increases the service life of the equipment, and makes its economic benefits higher. The setting of the metering inlet and the pH measuring port 65 improves the batching accuracy, enabling the staff to control the batching more precisely. This equipment is more adaptable to modern industrial production.

[0028] It can be understood that the present utility model is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A lithium carbonate batching tank with a stirring device, characterized in that: The invention comprises a mixing barrel (1), a mixing shaft (2) and a power motor (3), wherein the power motor (3) is mounted on a support frame (4) above the mixing barrel (1), the mixing shaft (2) is arranged between the mixing barrel (1) and the power motor (3), the upper end of the mixing shaft (2) is connected to the power motor (3), and the lower end extends into the mixing barrel (1), the mixing barrel (1) comprises a shell (12) which is hollow inside and open at the upper end, the inner cavity of the shell (12) is the mixing tank (11) of the mixing barrel (1), the upper opening of the shell (12) is provided with a corresponding tank cover (13), and the lower end of the mixing shaft (2) passes through the tank cover (13) and extends into the mixing tank (11).

2. The lithium carbonate batching tank with a stirring device according to claim 1, characterized in that: The stirring shaft (2) comprises a shaft (21), the upper end of the shaft (21) is connected to the power motor (3), and the lower end thereof extends into and is suspended in the stirring tank (11). The shaft (21) is provided with a corresponding stirring blade (7). The stirring tank (11) is provided with an inner shell (14) which is hollow inside and open at both ends. The inner shell (14) is connected to the tank cover (13) through a bracket (41) above the inner shell (14), so as to be suspended in the stirring tank (11). The inner shell (14) divides the stirring tank (11) into an inner tank (111) and an outer tank (112). The stirring blade (7) is located in the inner tank (111). A corresponding turbulence baffle (15) is provided on the inner side wall of the shell (12).

3. The lithium carbonate batching tank with a stirring device according to claim 2, characterized in that, The shaft (21) is provided with a plurality of stirring blades (7) in sequence from top to bottom, including an upper blade (71), a middle blade (72) and a lower blade (73), wherein the upper blade (71) is located at the upper part of the inner groove (111) and is a horizontally arranged sheet blade, the middle blade (72) is located at the lower middle part of the inner groove (111) and is gradually inclined downward from the inner circle to the outer circle along the longitudinal direction, and the lower blade (73) is located at the bottom of the inner groove (111) and is a dispersed disc blade.

4. The lithium carbonate batching tank with a stirring device according to claim 2, characterized in that: The shell (12) and the tank cover (13) are fixedly sealed and connected, and the mixing barrel (1) is provided with a corresponding overflow port (16) and a discharge port (17), wherein the overflow port (16) is provided at the upper end of the side wall of the shell (12), and the discharge port (17) is provided at the lower end of the side wall of the shell (12). The tank cover (13) is provided with a plurality of separate openings, including a first inlet (6) for lithium carbonate feeding, a second inlet (61) for hydrochloric acid feeding, and two spare ports (62). The cover (13) is also provided with an observation port (63) for real-time observation, an exhaust port (64) for gas discharge, a pH metering port (65) for real-time detection of the pH value of the material in the stirring tank (11), and an air inlet (66) for introducing air. All openings on the stirring barrel (1) including the overflow port (16) and the discharge port (17) are in a closed state when not in use. A corresponding sealing member (5) is provided at the connection between the tank cover (13) and the stirring shaft (2).

5. The lithium carbonate batching tank with a stirring device according to claim 4, characterized in that: The sealing member (5) comprises an upper member (51) and a lower member (52), wherein the upper member (51) is sleeved on the shaft (21) of the stirring shaft (2), the shaft (21) passes through the center of the upper member (51), and the two are fixedly sealed and connected, the bottom of the outer ring of the upper member (51) is provided with a corresponding annular bulge, the lower member (52) is annular with a hollow interior, and its outer ring is fixedly sealed and connected to the groove cover (13), and the top surface of the upper member (51) is provided with an annular groove corresponding to the annular bulge of the upper member (51), when in use, after the annular bulge and the annular groove are installed correspondingly, sealing water (53) is injected into the annular groove, and at this time, the annular bulge and the annular groove can be slidably connected.

6. The lithium carbonate batching tank with a stirring device according to claim 4, characterized in that: The first inlet (6), the second inlet (61) and the spare inlet (62) are all provided with corresponding high-precision metering devices, and are all metering inlets. The three and the pH metering port (65) are all interconnected.

7. The lithium carbonate batching tank with a stirring device according to claim 2, characterized in that: A corresponding reducer (31) is provided between the power motor (3) and the stirring shaft (2); the reducer (31) is fixed above the support frame (4) through a corresponding frame (42); the upper end of the reducer (31) is connected to the power motor (3), and the lower end is connected to the stirring shaft (2) through a corresponding coupling.

8. The lithium carbonate batching tank with a stirring device according to claim 7, characterized in that: The coupling comprises a reducer coupling (32) and a stirring shaft coupling (22), wherein the reducer (31) coupling is mounted at the lower end of the reducer (31), and the stirring shaft (2) coupling is mounted at the upper end of the shaft (21) of the stirring shaft (2), and the upper end of the stirring shaft (2) coupling and the lower end of the reducer (31) coupling are correspondingly matched and connected.

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