Purifying device for refining lithium carbonate

Abstract

The purification device comprises a reaction box, a filtering mechanism and a stirring assembly, a feeding pipe is arranged at the top of the reaction box, an air inlet pipe is arranged on the left side of the reaction box, a discharging pipe is arranged at the bottom of the reaction box, and a supporting frame is fixedly installed at the bottom of the reaction box; the filtering mechanism comprises a filtering box fixedly installed on the outer side of the discharging pipe, and a fixing ring is fixedly installed on the inner wall of the filtering box. According to the purification device for refining the lithium carbonate, impurities in the lithium carbonate can be screened out by arranging the filtering mechanism, the purity of the lithium carbonate is improved, the filtering efficiency is improved by arranging a vibration motor to enable a filtering plate to vibrate, the lithium carbonate can be stirred by arranging a stirring assembly, the reaction speed of the lithium carbonate and gas is increased, and the purification effect of the lithium carbonate is improved. By arranging an air pressure sensor, an air outlet pipe and a third electromagnetic valve, when the air pressure in the reaction box is too high, the reaction box can be exhausted.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium carbonate refining and purification, in particular to a lithium carbonate refining and purification device. Background Art

[0002] Lithium carbonate is an inorganic compound, a colorless monoclinic crystal or a white powder, soluble in dilute acid, slightly soluble in water, and more soluble in cold water than in hot water. It is insoluble in alcohol and acetone and can be used to make ceramics, drugs, catalysts, etc. It is a commonly used raw material for lithium-ion batteries. Since the main raw material for the production of lithium carbonate is salt lake brine, the ore method has a very small global production capacity due to its high cost. Therefore, companies that produce lithium carbonate on a large scale must have the right to mine salt lake resources with relatively rich lithium reserves. This gives the industry a high resource barrier. The usual preparation method is: spodumene and limestone are sintered at high temperature to generate lithium aluminate, which is then leached into lithium hydroxide solution and reacted with sodium carbonate to obtain the product. The prepared lithium carbonate often contains many impurities, that is, the purity is not high, so further processing is required.

[0003] According to a lithium carbonate refining and purification device disclosed in Chinese patent CN218654507U, the device includes a tripod, a reaction barrel, a protective cover, an air inlet pipe and a discharge pipe. The reaction barrel is installed on the upper part of the tripod, and the protective cover is slidably arranged on the upper part of the reaction barrel. The rear side of the upper part of the reaction barrel is connected and communicated with the air inlet pipe, and the lower part of the reaction barrel is connected and communicated with the discharge pipe for discharging. It also includes a water storage tank. Water storage tanks for storing water are installed on both sides of the lower part of the reaction barrel. By pouring clean water into the water storage tank, the water storage tank absorbs the heat in the reaction barrel, and then cools the reaction barrel to achieve a rapid cooling effect, so that the lithium carbonate and the reaction gas can react better. However, the lithium carbonate after the reaction is directly discharged and collected without filtering. Impurities may exist in the lithium carbonate after the reaction, and it needs to be filtered later, which increases labor and reduces the efficiency of lithium carbonate purification. Therefore, a lithium carbonate refining and purification device is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a purification device for refining lithium carbonate, which has the advantages of being able to filter the lithium carbonate, etc., and solves the problem that the lithium carbonate after the reaction is directly discharged and collected without being filtered, and impurities may exist in the lithium carbonate after the reaction, which needs to be filtered later, resulting in increased labor and reduced efficiency of lithium carbonate purification.

[0005] To achieve the above object, the utility model provides the following technical solution: a purification device for refining lithium carbonate, comprising a reaction box, a filtering mechanism and a stirring assembly, wherein a feed pipe is arranged on the top of the reaction box, an air inlet pipe is arranged on the left side of the reaction box, a discharge pipe is arranged on the bottom of the reaction box, and a support frame is fixedly installed on the bottom of the reaction box;

[0006] The filtering mechanism includes a filter box fixedly installed on the outside of the discharge pipe, a fixing ring is fixedly installed on the inner wall of the filter box, limiting blocks are fixedly installed on the left and right sides of the inner wall of the filter box, a rubber pad is fixedly installed on the side of the limiting block opposite to the fixing ring, a filter plate is slidably connected between the two rubber pads, a vibration motor is fixedly installed on the bottom of the filter plate, a discharge port is opened at the bottom of the filter box, and a movable door is arranged on the front of the filter box.

[0007] Furthermore, the stirring assembly includes a stirring motor fixedly mounted on the top of the reaction box, the stirring motor output shaft is fixedly mounted with a rotating rod having one end passing through and extending to the inside of the reaction box, and a stirring rod is fixedly mounted on the outside of the rotating rod.

[0008] Furthermore, the bottoms of the inner walls of the reaction box and the filter box are both inclined, an air pressure sensor is fixedly installed on the top of the inner wall of the reaction box, the left side of the movable door is hinged to the filter box, a first magnet is fixedly installed on the right side of the back of the movable door, and a second magnet is fixedly installed on the right side of the front of the filter box.

[0009] Furthermore, an air outlet pipe is provided on the top of the reaction box, a first solenoid valve is provided on the feed pipe, and a second solenoid valve is provided on the discharge pipe.

[0010] Furthermore, a third solenoid valve is provided on the air outlet pipe, and a condenser tube is fixed inside the reaction box at both ends and passes through and extends to the outside of the reaction box. The shape of the condenser tube is spiral.

[0011] Furthermore, both ends of the discharge pipe are connected to the interior of the reaction box and the interior of the filter box respectively, and the left and right sides of the filter plate are both slidably connected to the filter box.

[0012] Furthermore, the front and back sides of the filter plate are respectively fitted with the movable door and the filter box, and the bottom and top sides of the filter plate are both slidably connected with the rubber pad.

[0013] Furthermore, a bearing movably connected to the rotating rod is fixedly installed inside the reaction box, the number of the stirring rods is several and they are equidistantly distributed outside the rotating rod, and a collection box is placed on the top of the inner side of the support frame.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The lithium carbonate refining and purification device can screen out impurities in lithium carbonate and improve the purity of lithium carbonate by arranging a filtering mechanism, and can vibrate the filter plate by arranging a vibration motor to improve the filtering efficiency. The lithium carbonate can be stirred by the stirring component to accelerate the reaction speed of lithium carbonate and gas. The air pressure sensor, the air outlet pipe and the third solenoid valve can be arranged, and the reaction box can be vented when the air pressure in the reaction box is too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of the collection box of the utility model;

[0019] Figure 4 It is a side schematic diagram of the filter box of the utility model.

[0020] In the figure: 1 reaction box, 2 feed pipe, 3 air inlet pipe, 4 discharge pipe, 5 filter box, 6 fixing ring, 7 limit block, 8 rubber pad, 9 filter plate, 10 vibration motor, 11 discharge port, 12 movable door, 13 stirring motor, 14 rotating rod, 15 stirring rod, 16 air pressure sensor, 17 air outlet pipe, 18 condenser, 19 support frame, 20 collection box. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 A lithium carbonate refining and purification device in this embodiment includes a reaction box 1, a filtering mechanism and a stirring assembly. A feed pipe 2 is provided on the top of the reaction box 1, an air inlet pipe 3 is provided on the left side of the reaction box 1, a discharge pipe 4 is provided at the bottom of the reaction box 1, and a support frame 19 is fixedly installed at the bottom of the reaction box 1.

[0023] The filtering mechanism includes a filter box 5 fixedly installed on the outside of the discharge pipe 4, a fixing ring 6 is fixedly installed on the inner wall of the filter box 5, and limit blocks 7 are fixedly installed on the left and right sides of the inner wall of the filter box 5, and a rubber pad 8 is fixedly installed on the side opposite to the limit block 7 and the fixing ring 6. A filter plate 9 is slidably connected between the two rubber pads 8, and a vibration motor 10 is fixedly installed at the bottom of the filter plate 9. A discharge port 11 is opened at the bottom of the filter box 5, and a movable door 12 is arranged on the front of the filter box 5. The bottoms of the reaction box 1 and the inner walls of the filter box 5 are both inclined surfaces, and an air pressure sensor 16 is fixedly installed on the top of the inner wall of the reaction box 1. The left side of the movable door 12 is hinged to the filter box 5, and a first magnet is fixedly installed on the right side of the back of the movable door 12, and a second magnet is fixedly installed on the right side of the front of the filter box 5, so as to facilitate the opening and closing of the movable door 12, so that the filter plate 9 can be cleaned more conveniently. An air outlet pipe 17 is provided on the top of the reaction box 1, a first solenoid valve is provided on the feed pipe 2, a second solenoid valve is provided on the discharge pipe 4, and a third solenoid valve is provided on the air outlet pipe 17. When the air pressure sensor 16 detects that the air pressure in the reaction box 1 is too high, the third solenoid valve is opened to exhaust. The internal fixed ends of the reaction box 1 both penetrate and extend to the condenser 18 outside the reaction box 1. The shape of the condenser 18 is spiral. The two ends of the condenser 18 are connected to the external coolant pump. The two ends of the discharge pipe 4 are respectively connected to the interior of the reaction box 1 and the interior of the filter box 5. The left and right sides of the filter plate 9 are slidably connected to the filter box 5. The front and back of the filter plate 9 are respectively fitted with the movable door 12 and the filter box 5. The bottom and top of the filter plate 9 are slidably connected to the rubber pad 8. The rubber pad 8 is elastic. After starting the vibration motor 10, the filter plate 9 can vibrate to improve the filtering efficiency.

[0024] It should be noted that by setting up a filtering mechanism, impurities in lithium carbonate can be screened out to improve the purity of lithium carbonate. By setting up a vibration motor 10, the filter plate 9 is vibrated to improve the filtering efficiency. By setting up an air pressure sensor 16, an air outlet pipe 17 and a third solenoid valve, when the air pressure in the reaction box 1 is too high, the reaction box 1 can be vented.

[0025] The stirring assembly includes a stirring motor 13 fixedly installed on the top of the reaction box 1, and the output shaft of the stirring motor 13 is fixedly installed with a rotating rod 14 with one end penetrating and extending to the inner side of the reaction box 1, and a stirring rod 15 is fixedly installed on the outer side of the rotating rod 14. A bearing movably connected to the rotating rod 14 is fixedly installed inside the reaction box 1. The number of stirring rods 15 is several and they are equidistantly distributed on the outer side of the rotating rod 14, and a collecting box 20 is placed on the top of the inner side of the support frame 19.

[0026] It should be noted that the lithium carbonate can be stirred by the stirring component to accelerate the reaction rate of the lithium carbonate and the gas.

[0027] The working principle of the above embodiment is: when in use, open the first solenoid valve, pour lithium carbonate into the reaction box 1 from the feed pipe 2, then close the first solenoid valve, and pour the reaction gas into the reaction box 1 from the air inlet pipe 3, start the stirring motor 13, drive the rotating rod 14 to rotate, drive the stirring rod 15 to stir the lithium carbonate, and speed up the reaction speed. When it is necessary to cool the reaction box 1, pour the coolant into the condenser 18 to cool the reaction box 1. After the reaction of the reaction gas and lithium carbonate is completed, start the vibration motor 10 to drive the filter plate 9 to vibrate, open the second solenoid valve, and lithium carbonate enters the filter box 5 through the discharge pipe 4. After the lithium carbonate passes through the filter plate 9 to filter out impurities, it is discharged from the discharge port 11 and falls into the collection box 20 for collection.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A purification device for refining lithium carbonate, comprising a reaction box (1), a filtering mechanism and a stirring assembly, characterized in that: A feed pipe (2) is arranged at the top of the reaction box (1), an air inlet pipe (3) is arranged at the left side of the reaction box (1), a discharge pipe (4) is arranged at the bottom of the reaction box (1), and a support frame (19) is fixedly installed at the bottom of the reaction box (1); The filtering mechanism comprises a filter box (5) fixedly mounted on the outside of a discharge pipe (4), a fixing ring (6) fixedly mounted on the inner wall of the filter box (5), limit blocks (7) fixedly mounted on both the left and right sides of the inner wall of the filter box (5), a rubber pad (8) fixedly mounted on the side of the limit block (7) opposite to the fixing ring (6), a filter plate (9) slidably connected between the two rubber pads (8), a vibration motor (10) fixedly mounted on the bottom of the filter plate (9), a discharge port (11) opened at the bottom of the filter box (5), and a movable door (12) is arranged on the front of the filter box (5).

2. A purification device for refining lithium carbonate according to claim 1, characterized in that: The stirring assembly comprises a stirring motor (13) fixedly mounted on the top of the reaction box (1); a rotating rod (14) having one end penetrating through and extending to the inside of the reaction box (1) is fixedly mounted on the output shaft of the stirring motor (13); a stirring rod (15) is fixedly mounted on the outside of the rotating rod (14).

3. A purification device for refining lithium carbonate according to claim 1, characterized in that: The bottoms of the inner walls of the reaction box (1) and the filter box (5) are both inclined surfaces, an air pressure sensor (16) is fixedly mounted on the top of the inner wall of the reaction box (1), the left side of the movable door (12) is hinged to the filter box (5), a first magnet is fixedly mounted on the right side of the back side of the movable door (12), and a second magnet is fixedly mounted on the right side of the front side of the filter box (5).

4. A purification device for refining lithium carbonate according to claim 1, characterized in that: The top of the reaction box (1) is provided with an air outlet pipe (17), the feed pipe (2) is provided with a first electromagnetic valve, and the discharge pipe (4) is provided with a second electromagnetic valve.

5. A purification device for refining lithium carbonate according to claim 4, characterized in that: The air outlet pipe (17) is provided with a third solenoid valve, and the reaction box (1) has two internal fixed ends that penetrate through and extend to the outside of the reaction box (1) through a condenser pipe (18), and the condenser pipe (18) is in a spiral shape.

6. A purification device for refining lithium carbonate according to claim 1, characterized in that: The two ends of the discharge pipe (4) are respectively connected to the interior of the reaction box (1) and the interior of the filter box (5), and the left and right sides of the filter plate (9) are both slidably connected to the filter box (5).

7. A purification device for refining lithium carbonate according to claim 1, characterized in that: The front and back sides of the filter plate (9) are respectively fitted with the movable door (12) and the filter box (5), and the bottom and top sides of the filter plate (9) are both slidably connected with the rubber pad (8).

8. A purification device for refining lithium carbonate according to claim 2, characterized in that: A bearing movably connected to the rotating rod (14) is fixedly installed inside the reaction box (1), the stirring rods (15) are multiple in number and are evenly distributed outside the rotating rod (14), and a collection box (20) is placed on the top of the inner side of the support frame (19).

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