Novel lithium chloride continuous crystallizer

Abstract

The utility model provides a novel lithium chloride continuous crystallizer and belongs to the technical field of crystallization. Comprising a barrel body and a feeding mechanism, a conveying pipe is fixedly installed at the top of the barrel body, the feeding mechanism comprises a liquid storage bin, the liquid storage bin is fixedly installed at the bottom of the barrel body, the interior of the liquid storage bin communicates with the interior of the barrel body, a feeding pipe is fixedly installed on the outer surface of the barrel body, and a hollow pipe is fixedly installed outside the feeding pipe; and a movable feeding round bin is mounted in the hollow pipe. When raw materials are blocked, the feeding round bin is controlled to move to drive the connecting rod to move, liquid in the liquid inlet pipe can be pressed out through the piston, the liquid is conveyed into the feeding pipe, and then the raw materials accumulated in the feeding pipe can be flushed into the liquid storage bin, so that the interior of the feeding pipe is dredged, and normal feeding of the raw materials is guaranteed; the influence on the blanking speed is avoided, and meanwhile, the crystallization efficiency of lithium chloride is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of crystallization, and more specifically, to a novel continuous lithium chloride crystallizer. Background Art

[0002] Lithium chloride is an inorganic compound. It is a white powder and is applied in multiple fields. For example, it can be used as a desiccant in air conditioning systems; in the metallurgical industry, it is used to manufacture light metal alloys. In the battery field, lithium chloride can be used as an electrolyte for lithium-ion batteries and is widely used.

[0003] Since the raw material purity of lithium chloride is not high, crystallization is required to obtain relatively high-purity lithium chloride crystals from the lithium chloride solution containing impurities, so as to achieve the purpose of separation and purification, and then the relatively high-purity lithium chloride can be used in production. Currently, the method of crystallizing lithium chloride is to add raw materials to a solvent, heat the solvent to generate steam, and transport it to the inside of the crystallizer to achieve crystallization. Since lithium chloride is in powder form, when feeding lithium chloride, it is very easy to cause blockage of the feeding port, affecting the feeding speed and resulting in low crystallization efficiency of lithium chloride. Therefore, a novel continuous lithium chloride crystallizer device is proposed to solve this problem. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a novel continuous lithium chloride crystallizer that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a novel continuous lithium chloride crystallizer, including a cylinder body, and a conveying pipe is fixedly installed at the top of the cylinder body;

[0007] A feeding mechanism, the feeding mechanism includes;

[0008] A liquid storage bin, the liquid storage bin is fixedly installed at the bottom of the cylinder body, and the inside of the liquid storage bin is communicated with the inside of the cylinder body;

[0009] A feeding pipe, the feeding pipe is fixedly installed on the outer surface of the cylinder body, a hollow pipe is fixedly installed outside the feeding pipe, and a movable feeding round bin is installed inside the hollow pipe;

[0010] A liquid inlet pipe, the liquid inlet pipe is fixedly installed on the liquid storage bin, a piston is slidably installed inside the liquid inlet pipe, a connecting rod is fixedly installed on one side surface of the piston, a drain pipe is fixedly installed on the outer surface of the liquid inlet pipe, and one end of the drain pipe is arranged inside the feeding pipe.

[0011] In a preferred embodiment, the interior of the feed pipe is in communication with the interior of the liquid storage bin. An inclined block is fixedly installed inside the feed pipe, and the raw material can fall onto the inclined block and slide into the interior of the liquid storage bin from the inclined block.

[0012] In a preferred embodiment, a baffle is fixedly installed on the outside of the hollow pipe. A support rod is slidably installed inside the baffle. One end of the support rod penetrates through the interior of the baffle, and the other end is fixedly connected to a rectangular plate. A spring is sleeved on the outside of the support rod.

[0013] In a preferred embodiment, the bottom end of the liquid inlet pipe is arranged inside the liquid storage bin. One-way valves are respectively installed on the bottom end of the liquid inlet pipe and the drain pipe. The bottom end of the liquid storage bin is for liquid inlet, and the drain pipe is for liquid outlet.

[0014] In a preferred embodiment, an electric heating plate is fixedly installed at the bottom of the liquid storage bin. The electric heating plate heats the solution inside the liquid storage bin, and the electric heating plate is electrically connected to the control panel.

[0015] In a preferred embodiment, an anti-adhesion mechanism is further included on the cylinder body. The anti-adhesion mechanism includes an air delivery pipe and a salt leg.

[0016] In a preferred embodiment, a condenser is installed on the outside of the cylinder body, and the two are connected through a delivery pipe. The bottom of the condenser is connected to a crystallizer, and a salt leg is fixedly installed at the bottom of the crystallizer, and the interiors of the two are in communication.

[0017] In a preferred embodiment, one end of the air delivery pipe is fixedly installed on the outside of the cylinder body. The middle section of the air delivery pipe surrounds the outside of the salt leg and is in contact with the outer surface of the salt leg, and the other end finally extends into the interior of the cylinder body.

[0018] A novel lithium chloride continuous crystallizer provided by the present utility model has the following beneficial effects:

[0019] 1. By installing a liquid inlet pipe inside the liquid storage bin, a slidable piston is installed inside the liquid inlet pipe, and the piston is fixedly connected to a connecting rod. At the same time, a feeding round bin that can move up and down is arranged inside the hollow pipe. When the raw material is blocked, controlling the movement of the feeding round bin to drive the connecting rod to move will press out the liquid inside the liquid inlet pipe through the piston and transport the liquid into the interior of the feed pipe, so as to flush the raw material accumulated inside the feed pipe into the interior of the liquid storage bin, thereby dredging the inside of the feed pipe, ensuring the normal feeding of the raw material, avoiding affecting the feeding speed, and at the same time ensuring the crystallization efficiency of lithium chloride.

[0020] 2. By installing a salt leg at the bottom of the crystallizer and winding a gas transmission pipe around the outside of the salt leg, both ends of the gas transmission pipe are fixedly connected to the cylinder body. When discharging crystals, steam enters the inside of the gas transmission pipe and is transported around the outside of the salt leg, which can heat the salt leg so that when the crystals fall from the inside of the salt leg, they will not adhere to the inner wall of the salt leg, facilitating use. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0022] Figure 1 is the front view structural schematic diagram of the present invention;

[0023] Figure 2 is the structural schematic diagram of the liquid inlet pipe of the present invention;

[0024] Figure 3 is the structural schematic diagram of the hollow pipe of the present invention;

[0025] Figure 4 is the internal structural schematic diagram of the feed pipe of the present invention;

[0026] Figure 5 is the schematic diagram of the position of the salt leg of the present invention;

[0027] In the figure: 1. Cylinder body; 2. Conveyor pipe; 3. Feeding mechanism; 31. Liquid storage bin; 32. Feed pipe; 321. Hollow pipe; 322. Feeding round bin; 33. Liquid inlet pipe; 331. Piston; 332. Connecting rod; 333. Drain pipe; 4. Inclined block; 5. Baffle; 6. Support rod; 7. Rectangular plate; 8. Spring; 9. Electric heating plate; 10. Control panel; 11. Anti-adhesion mechanism; 111. Gas transmission pipe; 112. Salt leg; 12. Condenser; 13. Crystallizer. Specific Embodiments

[0028] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Embodiment

[0030] Reference Figures 1-5 Figures 1-5 , the present utility model provides a technical solution: a new type of lithium chloride continuous crystallizer, which includes a cylinder body 1 and a feeding mechanism 3, and a conveying pipe 2 is fixedly installed at the top of the cylinder body 1. The feeding mechanism 3 includes a liquid storage bin 31, the liquid storage bin 31 is fixedly installed at the bottom of the cylinder body 1, the inside of the liquid storage bin 31 is communicated with the inside of the cylinder body 1, a feeding pipe 32 is fixedly installed on the outer surface of the cylinder body 1, a hollow pipe 321 is fixedly installed outside the feeding pipe 32, a movable feeding circular bin 322 is installed inside the hollow pipe 321, a liquid inlet pipe 33 is fixedly installed on the liquid storage bin 31, a piston 331 is slidably installed inside the liquid inlet pipe 33, a connecting rod 332 is fixedly installed on one side surface of the piston 331, a drain pipe 333 is fixedly installed on the outer surface of the liquid inlet pipe 33, and one end of the drain pipe 333 is arranged inside the feeding pipe 32.

[0031] In a preferred embodiment, the inside of the feeding pipe 32 is communicated with the inside of the liquid storage bin 31, and an inclined block 4 is fixedly installed inside the feeding pipe 32, so that the raw material can fall onto the inclined block 4 and slide from the inclined block 4 into the inside of the liquid storage bin 31. In order to facilitate the falling of the raw material into the inside of the liquid storage bin 31, the inclined block 4 is fixedly installed inside the feeding pipe 32, and the raw material slides onto the inclined block 4 and then into the inside of the liquid storage bin 31, mixing the raw material with the solvent together, so as to heat it for subsequent crystallization operations.

[0032] In a preferred embodiment, a baffle 5 is fixedly installed outside the hollow pipe 321, a support rod 6 is slidably installed inside the baffle 5, one end of the support rod 6 penetrates through the inside of the baffle 5, and the other end is fixedly connected to a rectangular plate 7. A spring 8 is sleeved outside the support rod 6. When the raw material is blocked during the falling process, the feeding pipe 32 can be dredged by moving the feeding circular bin 322. After each pressing of the feeding circular bin 322, in order to make it automatically return to the initial position, a baffle 5 is installed outside the hollow pipe 321, a spring 8 is installed on the baffle 5, the support rod 6 is installed inside the spring 8, and the feeding circular bin 322 will squeeze the spring 8 during the downward movement. After releasing the feeding circular bin 322, it will return to the initial position under the action of the spring 8, so as to continue dredging when it is blocked subsequently.

[0033] In a preferred embodiment, the bottom end of the liquid inlet pipe 33 is arranged inside the liquid storage bin 31, and one-way valves are respectively installed on the bottom end of the liquid inlet pipe 33 and the drain pipe 333. The bottom end of the liquid storage bin 31 is used for liquid inlet, and the drain pipe 333 is used for liquid outlet. In order to facilitate the dredging of the feeding pipe 32, the raw material inside the feeding pipe 32 is flushed into the inside of the liquid storage bin 31 by means of liquid flushing. For the convenience of operation, the liquid inlet pipe 33 is fixedly installed inside the liquid storage bin 31, the piston 331 is slidably installed inside the liquid inlet pipe 33, and by sliding the piston 331 inside the liquid inlet pipe 33, the liquid inside the liquid inlet pipe 33 can be pressed out and discharged from the inside of the drain pipe 333, facilitating the dredging of the feeding pipe 32.

[0034] To facilitate the crystallization operation of the raw materials, the raw materials are first dissolved, then heated into steam, and finally crystallized by the crystallizer 13. Therefore, an electric heating plate 9 is fixedly installed at the bottom of the liquid storage bin 31. The electric heating plate 9 heats the solution inside the liquid storage bin 31. The electric heating plate 9 is electrically connected to the control panel 10. An electric heating plate 9 is fixedly installed at the bottom of the liquid storage bin 31. The liquid inside the liquid storage bin 31 is heated by the electric heating plate 9 to generate steam. To prevent overheating of the liquid, the temperature of the electric heating plate 9 is detected by the temperature detection unit inside the control panel 10. After reaching the set temperature, the start and stop of the electric heating plate 9 can be automatically controlled through the control panel 10 to meet the actual use.

[0035] After the liquid is crystallized by the crystallizer 13, it will fall inside the salt leg 112. Since the temperature of the crystal is very low, when it enters the salt leg 112, the temperature inside the salt leg 112 will rapidly decrease. At this time, the crystal is likely to adhere to the inner wall of the salt leg 112, affecting the fall of the crystal. Therefore, the anti-adhesion mechanism 11 is also included on the cylinder 1. The anti-adhesion mechanism 11 includes an air delivery pipe 111 and a salt leg 112. A condenser 12 is installed outside the cylinder 1. The two are connected by a delivery pipe 2. The bottom of the condenser 12 is connected to the crystallizer 13. The bottom of the crystallizer 13 is fixedly installed with a salt leg 112, and the two are internally connected. One end of the air delivery pipe 111 is fixedly installed outside the cylinder 1. The middle section of the air delivery pipe 111 surrounds the outside of the salt leg 112 and contacts the outer surface of the salt leg 112. The other end finally extends into the cylinder 1.

[0036] During actual use, the raw materials are dissolved in a solvent to form a liquid. Steam is generated by the continuous heating of the electric heating plate 9. The steam moves upward inside the cylinder 1 and enters the inside of the delivery pipe 2, and then enters the inside of the condenser 12. The steam is liquefied by the condenser 12, and then the liquid enters the inside of the crystallizer 13. After the liquid is crystallized by the crystallizer 13, it will fall through the salt leg 112. After the crystallization reaches the inside of the salt leg 112, it is easy for the crystal to rapidly cool the inside of the salt leg 112, causing the crystal to adhere to the inside of the salt leg 112. To enable the crystal to fall normally, the steam inside the liquid storage bin 31 is delivered into the inside of the air delivery pipe 111. The air delivery pipe 111 is wound around the outside of the salt leg 112, which will heat the salt leg 112. However, the heating temperature needs to be controlled so that the salt leg 112 always maintains a certain temperature, which can prevent the crystallization from adhering to the inner wall of the salt leg 112 and enable the crystal to fall.

[0037] Specifically, the working process or principle of a new type of lithium chloride continuous crystallizer is as follows: Since the raw material purity of lithium chloride is not high, crystallization is required to obtain lithium chloride crystals with higher purity from the lithium chloride solution containing impurities, so as to achieve the purpose of separation and purification, and only then can the lithium chloride with higher purity be used in production. Currently, the method of lithium chloride crystallization is to add the raw material to a solvent, heat the solvent to generate steam, and transport it to the inside of the crystallizer 13 to achieve crystallization. Since lithium chloride is in powder form, when feeding lithium chloride, it is very easy to cause blockage of the feed inlet, affect the feeding speed, and result in low crystallization efficiency of lithium chloride. Therefore, this device is designed to solve this problem.

[0038] In the interior of the liquid storage bin 31 of this device, a liquid inlet pipe 33 is installed. A piston 331 is slidably installed inside the liquid inlet pipe 33. The movement of the feeding circular bin 322 will drive the connecting rod 332 to move, so that the piston 331 presses the liquid inside the liquid inlet pipe 33 out into the interior of the feeding pipe 32. In this way, the raw material accumulated inside the feeding pipe 32 is flushed into the interior of the liquid storage bin 31 by the liquid, unclogging the feeding pipe 32 and facilitating the feeding of the raw material. The specific operation is as follows: Connect to an external power source, add the raw material to the interior of the feeding circular bin 322. The raw material will fall from the interior of the feeding circular bin 322 into the interior of the hollow pipe 321 and pass through the interior of the hollow pipe 321 and enter the interior of the feeding pipe 32. A filter disk is installed at the bottom of the feeding circular bin 322 of this device to filter the raw material and prevent impurities from entering the processing position.

[0039] Since an inclined block 4 is installed inside the feeding pipe 32, the raw material will automatically slide into the interior of the liquid storage bin 31 on the inclined block 4. Before preparing to crystallize the raw material, turn on the electric heating plate 9, and heat the liquid storage bin 31 through the electric heating plate 9. Before adding the raw material to the liquid storage bin 31, a suitable solvent should be added to the interior of the liquid storage bin 31 first. This solvent can dissolve lithium chloride, and the temperature of the solvent increases with the increase in the temperature of the electric heating plate 9, thereby accelerating the dissolution of the raw material.

[0040] As the temperature of the solvent continues to rise, the generated steam will enter the interior of the feed pipe 32, causing the inner wall of the feed pipe 32 to be damp. At this time, the powder will adhere to the inner wall and cannot fall normally. Subsequently, the subsequent powder will continuously enter the interior of the feed pipe 32, which will cause the interior of the feed pipe 32 to be blocked. When it is found that there is raw material in the feeding silo 322 during the feeding process, the feeding silo 322 can be pressed to move it downward. While the feeding silo 322 moves downward, it will also drive the connecting rod 332 to move downward. At this time, the piston 331 will move downward inside the liquid inlet pipe 33 under the push of the connecting rod 332. Initially, the liquid may not be pressed out of the liquid inlet pipe 33. At this time, this step can be repeated. First, the liquid inside the liquid storage bin 31 is pumped into the interior of the liquid inlet pipe 33. When the piston 331 is pressed to move again, the liquid inside the liquid inlet pipe 33 can be pressed out. The liquid sprays out from the interior of the drain pipe 333 onto the inclined block 4, flushing away the raw material accumulated on the inclined block 4, enabling the raw material to enter the interior of the liquid storage bin 31, thus unclogging the feed pipe 32 and facilitating the feeding of the raw material.

[0041] The raw material dissolves in the solvent to form a liquid. Through the continuous heating of the electric heating plate 9, steam will be generated. The steam moves upward from bottom to top inside the cylinder body 1 and enters the interior of the conveying pipe 2, and then enters the interior of the condenser 12. The steam is liquefied by the condenser 12, and then the liquid enters the crystallizer 13. After the liquid is crystallized by the crystallizer 13, it will fall through the salt leg 112. After the crystallization reaches the interior of the salt leg 112, the crystal easily causes the interior of the salt leg 112 to cool rapidly, causing the crystal to adhere to the interior of the salt leg 112. To enable the crystal to fall normally, the steam inside the liquid storage bin 31 is transported into the interior of the gas transmission pipe 111. The gas transmission pipe 111 is wound around the outside of the salt leg 112 and will heat the salt leg 112. However, the heating temperature needs to be controlled so that the salt leg 112 always maintains a certain temperature, which can prevent the crystallization from adhering to the inner wall of the salt leg 112 and enable the crystal to fall. In this way, continuous crystallization of lithium chloride can be achieved.

[0042] It should be noted that the electric heating plate 9, the control panel 10, the condenser 12, and the crystallizer 13 are devices or equipment existing in the prior art, or devices or equipment that can be realized by the prior art. Their power supply, specific composition, and principle are clear to those skilled in the art, so they will not be elaborated in detail.

Claims

1. A novel lithium chloride continuous crystallizer, characterized in that: It comprises a cylinder (1), and a delivery pipe (2) is fixedly installed on the top of the cylinder (1); A feeding mechanism (3), the feeding mechanism (3) comprising: A liquid storage bin (31), the liquid storage bin (31) being fixedly mounted at the bottom of the cylinder (1), the interior of the liquid storage bin (31) being in communication with the interior of the cylinder (1); A feeding pipe (32), wherein the feeding pipe (32) is fixedly mounted on the outer surface of the cylinder (1), a hollow tube (321) is fixedly mounted on the outside of the feeding pipe (32), and a movable loading silo (322) is mounted inside the hollow tube (321); A liquid inlet pipe (33), the liquid inlet pipe (33) is fixedly mounted on the liquid storage bin (31), a piston (331) is slidably mounted inside the liquid inlet pipe (33), a connecting rod (332) is fixedly mounted on one side of the piston (331), a liquid discharge pipe (333) is fixedly mounted on the outer surface of the liquid inlet pipe (33), and one end of the liquid discharge pipe (333) is arranged inside the feed pipe (32).

2. A novel lithium chloride continuous crystallizer according to claim 1, characterized in that, The interior of the feed pipe (32) is connected to the interior of the liquid storage bin (31), and an inclined block (4) is fixedly installed inside the feed pipe (32), so that the raw material can fall onto the inclined block (4) and slide from the inclined block (4) to the interior of the liquid storage bin (31).

3. A novel lithium chloride continuous crystallizer according to claim 2, characterized in that, A baffle (5) is fixedly installed on the outside of the hollow tube (321), and a support rod (6) is slidably installed on the inside of the baffle (5). One end of the support rod (6) passes through the inside of the baffle (5), and the other end is fixedly connected to the rectangular plate (7). A spring (8) is sleeved on the outside of the support rod (6).

4. A novel lithium chloride continuous crystallizer according to claim 3, characterized in that, The bottom end of the liquid inlet pipe (33) is arranged inside the liquid storage bin (31), and one-way valves are respectively installed on the bottom end of the liquid inlet pipe (33) and the liquid discharge pipe (333). The bottom end of the liquid storage bin (31) is used for liquid inlet, and the liquid discharge pipe (333) is used for liquid discharge.

5. A novel lithium chloride continuous crystallizer according to claim 4, characterized in that, An electric heating plate (9) is fixedly installed at the bottom of the liquid storage bin (31), and the electric heating plate (9) heats the solution inside the liquid storage bin (31). The electric heating plate (9) is electrically connected to a control panel (10).

6. A novel lithium chloride continuous crystallizer according to claim 5, characterized in that, The cylinder (1) further comprises an anti-adhesion mechanism (11), and the anti-adhesion mechanism (11) comprises an air delivery pipe (111) and a salt leg (112).

7. A novel lithium chloride continuous crystallizer according to claim 6, characterized in that, A condenser (12) is installed outside the cylinder (1), and the two are connected through a delivery pipe (2). The bottom of the condenser (12) is connected to a crystallizer (13), and a salt leg (112) is fixedly installed at the bottom of the crystallizer (13), and the two are internally connected.

8. A novel lithium chloride continuous crystallizer according to claim 7, characterized in that, One end of the gas pipe (111) is fixedly mounted on the outside of the cylinder (1), the middle section of the gas pipe (111) surrounds the outside of the salt leg (112) and contacts the outer surface of the salt leg (112), and the other end finally extends to the inside of the cylinder (1).

Images