Quantitative dropwise adding device and processing method of electrolyte additive

Abstract

The invention relates to the technical field of electrolyte additives, in particular to an electrolyte additive quantitative dropwise adding device which comprises a bottom plate, a stirring barrel is arranged on the bottom plate, a stirring device is arranged in the stirring barrel, a feeding port is formed in the top of the stirring barrel, a discharging port is formed in one side of the bottom of the stirring barrel, and electric telescopic rods are symmetrically arranged on the two sides of the bottom plate. A through hole is formed in the supporting plate, a quantitative cylinder is fixedly installed in the through hole, the top of the quantitative cylinder is open, a push rod is slidably arranged in the quantitative cylinder, the bottom of the side wall of the quantitative cylinder is in sealed connection with a liquid storage tank through a liquid inlet pipe, the liquid storage tank is fixedly installed on the supporting plate, and the bottom of the quantitative cylinder is connected with a liquid outlet pipe; and the liquid outlet pipe is located over the feeding port, and the outer side of the bottom of the liquid outlet pipe is sleeved with a protection cover. According to the technical scheme, operation is convenient, quantification is accurate, stirring is uniform, and pollution and blockage of the interior of the liquid outlet pipe can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of electrolyte additives, in particular to a quantitative dripping device and a processing method for electrolyte additives. Background Art

[0002] Electrolyte additives refer to small amounts of additives added to the electrolyte to improve the electrochemical properties of the electrolyte and the quality of cathode deposition. These additives are generally natural or synthetic organic or inorganic compounds. Although they do not directly participate in the electrode reaction of the electrolysis process, they can improve the electrochemical properties of the electrolyte system, affect the discharge conditions of ions, and put the electrolysis process in a better state.

[0003] During the processing, the electrolyte additive needs to be added quantitatively. Quantitative addition can ensure that the additive is evenly dispersed in the electrolyte, avoid local concentrations that are too high or too low, and thus improve the solubility of the additive. However, the quantitative addition device in the prior art does not stir sufficiently during use, which affects the use effect of the electrolyte and the performance of the battery. In addition, the liquid outlet pipe of the quantitative addition device is prone to contamination and blockage during use, which affects the quantitative addition of the electrolyte additive. In view of this, we propose a quantitative addition device and processing method for electrolyte additives. Summary of the invention

[0004] The object of the present invention is to provide a quantitative dripping device for electrolyte additives to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] On the one hand, the present invention provides a quantitative drop-adding device for electrolyte additives, comprising a base plate, a stirring drum is arranged on the base plate, a stirring device is arranged inside the stirring drum, a feed port is opened on the top of the stirring drum, a discharge port is opened on one side of the bottom of the stirring drum, electric telescopic rods are symmetrically arranged on both sides of the base plate, support plates are fixedly arranged on the top of the electric telescopic rods on both sides, through holes are opened on the support plates, a quantitative cylinder is fixedly installed in the through holes, the top of the quantitative cylinder is open and a push rod is slidably arranged inside the quantitative cylinder, the bottom of the side wall of the quantitative cylinder is sealed and connected to a liquid storage tank through a liquid inlet pipe, the liquid storage tank is fixedly installed on the support plate, the bottom of the quantitative cylinder is connected to a liquid outlet pipe, the liquid outlet pipe is located directly above the feed port, and a protective cover is provided on the outer side of the bottom of the liquid outlet pipe.

[0007] Preferably, a plurality of fixing columns are evenly arranged on the bottom of the mixing drum, and the bottoms of the plurality of fixing columns are fixedly connected to the bottom plate.

[0008] Preferably, the stirring device includes a stirring shaft, a rotating column, and a stirring paddle. A first motor is fixedly arranged at the bottom of the stirring drum through a motor bracket, and the output end of the first motor passes through the bottom of the stirring drum and is transmission-connected to the bottom end of the stirring shaft. A plurality of rotating columns are evenly and radiantly arranged on the outer side of the middle part of the stirring shaft. A first gear is fixedly sleeved on the top of the stirring shaft. The end of the rotating column away from the stirring shaft is rotatably connected to the rotating shaft through a bearing. A stirring paddle is fixedly arranged on the top of the rotating shaft. A second gear is sleeved on the outer side of the middle part of the rotating shaft, and the second gear is meshed with the first gear.

[0009] Preferably, the stirring paddle includes a connecting column and a plurality of stirring blades, the bottom end of the connecting column is fixedly connected to the rotating shaft, a plurality of stirring blades are evenly radiated on the outer side of the connecting column, the side walls of the stirring blades away from the rotating shaft are arc-shaped, and the stirring blades contact the inner wall of the stirring drum when rotating.

[0010] Preferably, a first limiting ring is fixedly provided on the top of the measuring cylinder, and the bottom of the first limiting ring abuts against the top of the support plate. A second limiting ring is fixedly sleeved on the upper side of the measuring cylinder, and the top of the second limiting ring abuts against the bottom of the support plate. Scale lines are provided on the outside of the measuring cylinder, and the measuring cylinder is made of transparent glass.

[0011] Preferably, the sealing sliding sleeve outside the liquid outlet pipe is provided with a threaded cover plate, the inside of the threaded cover plate is provided with an internal thread, the top end of the feed port is provided with an external thread, and the internal thread is adapted to the external thread.

[0012] Preferably, a bracket is provided on the top of the metering cylinder, a second motor is fixedly provided on the bracket, the push rod includes a telescopic rod and a push block, the output end of the second motor passes through the bracket and is fixedly connected to the top of the telescopic rod, a push block is fixedly connected to the bottom of the telescopic rod, and the push block is sealed and slidably connected to the inside of the metering cylinder.

[0013] Preferably, the protective cover is U-shaped, and a plurality of liquid outlet holes are evenly arranged on the side wall of the protective cover. A first positioning ring is fixedly arranged on the top of the protective cover, a second positioning ring is arranged above the first positioning ring, and the second positioning ring is fixedly sleeved on the outside of the liquid outlet pipe. A plurality of springs are arranged between the first positioning ring and the second positioning ring. When the springs are in a normal state, the bottom of the liquid outlet pipe is against the inner bottom wall of the protective cover.

[0014] Preferably, the mixing drum and the top of the liquid storage tank are both provided with an air connecting valve, the liquid inlet pipe is provided with a first one-way valve, the liquid outlet pipe is provided with a second one-way valve, and the discharge port is provided with a solenoid valve.

[0015] On the other hand, the present invention provides a method for processing an electrolyte additive, using the above-mentioned quantitative dripping device, comprising the following steps:

[0016] S1. Add the electrolyte into the mixing drum from the feed port, stir it continuously by the stirring device, and add the electrolyte additive into the liquid storage tank;

[0017] S2. Adjust the height of the liquid outlet pipe by the electric telescopic rod so that the bottom end of the liquid outlet pipe is located below the feed inlet, and connect the threaded cover plate to the feed inlet by threading;

[0018] S3, open the first one-way valve, control the telescopic rod and the push block to move upward through the second motor, and the electrolyte additive enters the quantitative cylinder from the liquid storage tank. When the push block moves to the required scale, close the first one-way valve;

[0019] S4, opening the second one-way valve, controlling the telescopic rod and the push block to move downward by the second motor, the protective cover moves downward under the pressure, the electrolyte additive is added into the electrolyte from the liquid outlet, and the electrolyte is stirred evenly by the stirring device;

[0020] S5. The evenly stirred electrolyte and electrolyte additives are discharged from the discharge port.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The quantitative dripping device of the electrolyte additive controls the absorption and dripping of the electrolyte additive by moving the push rod up and down. The operation is convenient. The outer side of the quantitative cylinder is provided with scale lines. The quantitative cylinder is made of transparent glass, which is convenient for observing the absorption volume of the electrolyte additive.

[0023] 2. The quantitative dripping device of the electrolyte additive continuously stirs the electrolyte and the electrolyte additive through the stirring device to fully mix them, and controls the rotation of the stirring shaft through the first motor, and the stirring shaft drives the rotating column to rotate, and the rotating column drives the stirring paddle to rotate through the rotating shaft to fully stir the electrolyte; the stirring shaft also drives the first gear to rotate, and the first gear drives the second gear meshing with it to rotate synchronously, the second gear drives the rotating shaft to rotate, and the rotating shaft drives the stirring paddle to rotate, so that the stirring paddle rotates around the stirring shaft while also rotating around the rotating shaft, which can enhance its stirring effect on the electrolyte.

[0024] 3. The stirring blade of the quantitative dripping device for electrolyte additives is arc-shaped away from the side wall of the rotating shaft. The stirring blade contacts the inner wall of the stirring drum when rotating, which can prevent the viscous liquid from adhering to the inner wall of the stirring drum, making the stirring more sufficient, and also allowing the evenly stirred electrolyte and electrolyte additives to be discharged from the discharge port.

[0025] 4. The bottom end of the liquid outlet pipe of the quantitative dripping device of the electrolyte additive is provided with a protective cover. When the push block squeezes the electrolyte additive downward, the protective cover moves downward under the action of pressure, the spring stretches, and the liquid outlet hole moves to the lower side of the bottom end of the liquid outlet pipe, so that the electrolyte additive flows out from the liquid outlet hole and is dripped into the electrolyte, so that the electrolyte additive can be evenly dispersed. After the dripping is completed, the spring resets, driving the protective cover to move upward and reset, and the protective cover blocks the bottom end of the liquid outlet pipe, which can prevent the electrolyte from splashing into the inside of the liquid outlet pipe during stirring to cause pollution and blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the mixing drum in the present invention;

[0028] Figure 3 It is a structural schematic diagram of the dosing cylinder in the present invention;

[0029] Figure 4 It is a structural schematic diagram of the threaded cover plate in the present invention;

[0030] Figure 5 for Figure 1 A magnified view of the structure at center.

[0031] In the figure: 1, bottom plate; 2, mixing drum; 21, stirring device; 211, stirring shaft; 212, rotating column; 213, stirring paddle; 2131, connecting column; 2132, stirring blade; 214, first gear; 215, rotating shaft; 216, second gear; 22, feeding port; 221, external thread; 23, discharging port; 24, fixing column; 25, first motor; 3, electric telescopic rod; 4, supporting plate; 5, fixed Measuring cylinder; 51, push rod; 511, telescopic rod; 512, push block; 52, first limiting ring; 53, second limiting ring; 6, liquid inlet pipe; 61, first one-way valve; 7, liquid storage tank; 8, liquid outlet pipe; 81, second one-way valve; 82, threaded cover plate; 821, internal thread; 9, protective cover; 91, liquid outlet hole; 92, first positioning ring; 93, second positioning ring; 94, spring; 10, bracket; 101, second motor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0036] Example 1

[0037] See also Figure 1-Figure 5 As shown, a technical solution provided by the present invention is:

[0038] A quantitative dripping device for electrolyte additives, comprising a bottom plate 1, the bottom plate 1 is fixedly arranged on the ground, a mixing drum 2 is arranged on the bottom plate 1, a mixing device 21 is arranged inside the mixing drum 2, a feeding port 22 is provided on the top of the mixing drum 2, a discharge port 23 is provided on one side of the bottom of the mixing drum 2, electric telescopic rods 3 are symmetrically arranged on both sides of the bottom plate 1, support plates 4 are fixedly arranged on the top of the electric telescopic rods 3 on both sides, through holes are provided on the support plates 4, and quantitative cylinders 5 are fixedly installed in the through holes, the lifting of the support plates 4 is controlled by the electric telescopic rods 3, thereby driving the lifting of the quantitative cylinder 5, the top of the quantitative cylinder 5 is open and a push rod 51 is slidably arranged inside it, and the bottom of the side wall of the quantitative cylinder 5 A liquid storage tank 7 is sealed and connected via a liquid inlet pipe 6, and the liquid storage tank 7 is fixedly mounted on the support plate 4. A liquid outlet pipe 8 is connected to the bottom of the metering cylinder 5, and the liquid outlet pipe 8 is located just above the feed port 22. A protective cover 9 is sleeved on the outer side of the bottom of the liquid outlet pipe 8. In addition, an air connecting valve is provided on the top of the mixing drum 2 and the liquid storage tank 7 to keep the internal pressure of the mixing drum 2 and the liquid storage tank 7 consistent with the external atmospheric pressure, which is convenient for the electrolyte additive in the liquid storage tank 7 to enter the metering cylinder 5 and for the electrolyte additive in the metering cylinder 5 to drip into the mixing drum 2. A first one-way valve 61 is provided inside the liquid inlet pipe 6, a second one-way valve 81 is provided inside the liquid outlet pipe 8, and a solenoid valve is provided inside the discharge port 23. When in use, the electrolyte is added into the mixing drum 2 from the feed port 22, and is continuously stirred by the stirring device 21, and the electrolyte additive is added into the liquid storage tank 7, and then the height of the metering cylinder 5 is adjusted by the electric telescopic rod 3, so that the bottom end of the liquid outlet pipe 8 moves to the inside of the feed port 22, the first one-way valve 61 is opened, and the electrolyte additive is transferred from the liquid storage tank 7 to the metering cylinder 5 by moving the push rod 51 upward, and then the first one-way valve 61 is closed, the second one-way valve 81 is opened, and the electrolyte additive is dripped from the metering cylinder 5 into the mixing drum 2 by moving the push rod 51 downward, and is stirred evenly by the stirring device 21, and the evenly stirred electrolyte and electrolyte additive are discharged from the discharge port 23.

[0039] As a preferred implementation of this embodiment, a plurality of fixing columns 24 are evenly arranged at the bottom of the mixing drum 2, and the bottoms of the plurality of fixing columns 24 are fixedly connected to the bottom plate 1 to prevent the mixing drum 2 from shaking during mixing.

[0040] In this embodiment, the stirring device 21 includes a stirring shaft 211, a rotating column 212, and a stirring paddle 213. A first motor 25 is fixedly arranged at the bottom of the stirring drum 2 through a motor bracket. The output end of the first motor 25 passes through the bottom of the stirring drum 2 and is transmission-connected to the bottom end of the stirring shaft 211. A plurality of rotating columns 212 are evenly and radiatedly arranged on the outer side of the middle part of the stirring shaft 211. In this embodiment, the number of rotating columns 212 is preferably 4. A first gear 214 is fixedly sleeved on the top of the stirring shaft 211. The end of the rotating column 212 away from the stirring shaft 211 is rotatably connected to a rotating shaft 215 through a bearing. A stirring paddle 213 is fixedly arranged on the top of the rotating shaft 215. A second gear 216 is sleeved on the outer side of the middle part of the rotating shaft 215, and the second gear 216 is meshed with the first gear 214. The stirring shaft 211 is controlled to rotate by the first motor 25, and the stirring shaft 211 drives the rotating column 212 to rotate. The rotating column 212 drives the stirring paddle 213 to rotate through the rotating shaft 215, so as to fully stir the electrolyte; the stirring shaft 211 also drives the first gear 214 to rotate, and the first gear 214 drives the second gear 216 meshing therewith to rotate synchronously, and the second gear 216 drives the rotating shaft 215 to rotate, and the rotating shaft 215 drives the stirring paddle 213 to rotate, that is, while the stirring paddle 213 rotates around the stirring shaft 211, it also rotates around the rotating shaft 215, which can enhance its stirring effect on the electrolyte.

[0041] Specifically, the stirring paddle 213 includes a connecting column 2131 and a plurality of stirring blades 2132. The bottom end of the connecting column 2131 is fixedly connected to the rotating shaft 215. The plurality of stirring blades 2132 are evenly radiated on the outer side of the connecting column 2131. The rotating shaft 215 rotates to drive the connecting column 2131 to rotate, thereby controlling the stirring blades 2132 to rotate. The side walls of the stirring blades 2132 away from the rotating shaft 215 are arc-shaped. When rotating, the stirring blades 2132 contact the inner wall of the stirring drum 2, which can prevent the viscous liquid from adhering to the inner wall of the stirring drum 2, making the stirring more sufficient, and also allowing the evenly stirred electrolyte and electrolyte additives to be discharged from the discharge port 23.

[0042] In this embodiment, a first limiting ring 52 is fixedly provided on the top of the measuring cylinder 5, and the bottom of the first limiting ring 52 abuts against the top of the support plate 4. A second limiting ring 53 is fixedly sleeved on the upper side of the measuring cylinder 5, and the top of the second limiting ring 53 abuts against the bottom of the support plate 4. The measuring cylinder 5 is fixed by the first limiting ring 52 and the second limiting ring 53 to prevent the measuring cylinder 5 from shaking during the up and down movement of the push rod 51, thereby affecting the quantitative amount. Scale lines are provided on the outside of the measuring cylinder 5, and the measuring cylinder 5 is made of transparent glass, which is convenient for quantitative absorption and dripping of electrolyte additives.

[0043] In this embodiment, a sealing sliding sleeve on the outer side of the liquid outlet pipe 8 is provided with a threaded cover plate 82, an internal thread 821 is provided inside the threaded cover plate 82, and an external thread 221 is provided at the top of the feed port 22. The internal thread 821 is adapted to the external thread 221. When the liquid outlet pipe 8 moves to the inside of the feed port 22, the threaded cover plate 82 is moved downward and connected with the threaded top of the feed port 22 to prevent the electrolyte from splashing out during the stirring process.

[0044] In this embodiment, a bracket 10 is provided on the top of the quantitative cylinder 5, and a second motor 101 is fixedly provided on the bracket 10. The push rod 51 includes a telescopic rod 511 and a push block 512. The output end of the second motor 101 passes through the bracket 10 and is fixedly connected to the top of the telescopic rod 511. The bottom of the telescopic rod 511 is fixedly connected to a push block 512, and the push block 512 is sealed and slidably connected to the inside of the quantitative cylinder 5. The initial position of the push block 512 is against the inner bottom wall of the quantitative cylinder 5. When the electrolyte additive needs to be absorbed, the second motor 101 controls the telescopic rod 511 to shorten, driving the push block 512 to move upward. Under the action of the pressure difference, the electrolyte additive is transferred from the liquid storage tank 7 to the quantitative cylinder 5, and the volume of the absorbed electrolyte additive is observed through the scale line on the quantitative cylinder 5; when the electrolyte additive needs to be dripped, the second motor 101 controls the telescopic rod 511 to extend, driving the push block 512 to move downward to squeeze the electrolyte additive, so that the electrolyte additive drips into the mixing cylinder 2.

[0045] In this embodiment, the protective cover 9 is U-shaped, and a plurality of liquid outlet holes 91 are evenly opened on the side wall of the protective cover 9. A first positioning ring 92 is fixedly provided on the top of the protective cover 9, and a second positioning ring 93 is provided above the first positioning ring 92. The second positioning ring 93 is fixedly sleeved on the outside of the liquid outlet pipe 8. A plurality of springs 94 are provided between the first positioning ring 92 and the second positioning ring 93. When the spring 94 is in a normal state, the bottom of the liquid outlet pipe 8 is against the inner bottom wall of the protective cover 9, and the outer diameter of the protective cover 9 is smaller than the inner diameter of the feed port 22, so that the protective cover 9 can enter the mixing drum 2 through the feed port 22. When the push block 512 squeezes the electrolyte additive downward, the protective cover 9 moves downward under the action of pressure, the spring 94 stretches, and at the same time the liquid outlet hole 91 moves to the lower side of the bottom end of the liquid outlet pipe 8, so that the electrolyte additive flows out from the liquid outlet hole 91 and drips into the electrolyte, so that the electrolyte additive can be evenly dispersed. After the dripping is completed, the spring 94 resets, driving the protective cover 9 to move upward and reset. The protective cover 9 blocks the bottom end of the liquid outlet pipe 8, which can prevent the electrolyte from splashing into the inside of the liquid outlet pipe 8 during the stirring process to cause pollution and blockage.

[0046] When the quantitative dripping device of the electrolyte additive of this embodiment is used, the electrolyte is added into the stirring drum 2 from the feed port 22, and the electrolyte is continuously stirred by the stirring device 21, and the electrolyte additive is added into the liquid storage tank 7, and then the height of the quantitative drum 5 is adjusted by the electric telescopic rod 3, so that the bottom end of the liquid outlet pipe 8 moves to the inside of the feed port 22, and the threaded cover plate 82 is moved downward and connected with the top of the feed port 22 by threading to prevent the electrolyte from splashing out during the stirring process;

[0047] When it is necessary to absorb electrolyte additives, the first one-way valve 61 is opened, and the telescopic rod 511 is controlled to shorten by the second motor 101, driving the push block 512 to move upward. Under the action of the pressure difference, the electrolyte additive is transferred from the liquid storage tank 7 to the quantitative cylinder 5, and the volume of the absorbed electrolyte additive is observed through the scale line on the quantitative cylinder 5, and then the first one-way valve 61 is closed; when it is necessary to drip electrolyte additives, the second one-way valve 81 is opened, and the telescopic rod 511 is controlled to extend by the second motor 101, driving the push block 512 to move downward to squeeze the electrolyte additives. Under the action of pressure, the protective cover 9 moves downward, the spring 94 is stretched, and at the same time, the liquid outlet 91 moves to the lower side of the bottom end of the liquid outlet pipe 8, so that the electrolyte additive flows out from the liquid outlet 91 and is dripped into the electrolyte. After the dripping is completed, the spring 94 is reset, driving the protective cover 9 to move upward and reset, and the protective cover 9 blocks the bottom end of the liquid outlet pipe 8, which can prevent the electrolyte from splashing into the inside of the liquid outlet pipe 8 during the stirring process to cause pollution and blockage;

[0048] The electrolyte and the electrolyte additive are stirred uniformly by the stirring device 21 , and the uniformly stirred electrolyte and the electrolyte additive are discharged from the discharge port 23 .

[0049] Example 2

[0050] A method for processing an electrolyte additive, using the quantitative dropping device in Example 1, comprises the following steps:

[0051] S1, adding electrolyte into the mixing drum 2 from the feed port 22, stirring it continuously by the stirring device 21, and adding electrolyte additives into the liquid storage tank 7;

[0052] S2. Adjust the height of the liquid outlet pipe 8 by means of the electric telescopic rod 3 so that the bottom end of the liquid outlet pipe 8 is located below the feed inlet 22, and thread the threaded cover plate 82 to be connected to the feed inlet 22;

[0053] S3, open the first one-way valve 61, control the telescopic rod 511 and the push block 512 to move upward through the second motor 101, and the electrolyte additive enters the quantitative cylinder 5 from the liquid storage tank 7. When the push block 512 moves to the required scale, close the first one-way valve 61;

[0054] S4, opening the second one-way valve 81, controlling the telescopic rod 511 and the push block 512 to move downward by the second motor 101, the protective cover 9 moves downward under the pressure, and the electrolyte additive is added into the electrolyte from the liquid outlet 91, and is stirred evenly by the stirring device 21;

[0055] S5. The uniformly stirred electrolyte and electrolyte additive are discharged from the discharge port 23.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A quantitative dripping device for electrolyte additives, comprising a bottom plate (1), characterized in that: A mixing drum (2) is arranged on the bottom plate (1), a mixing device (21) is arranged inside the mixing drum (2), a feeding port (22) is provided on the top of the mixing drum (2), a discharging port (23) is provided on one side of the bottom of the mixing drum (2), electric telescopic rods (3) are symmetrically arranged on both sides of the bottom plate (1), support plates (4) are fixedly arranged on the tops of the electric telescopic rods (3) on both sides, through holes are arranged on the support plates (4), a quantitative cylinder (5) is fixedly installed in the through holes, the top of the quantitative cylinder (5) is open and a push rod (51) is slidably arranged inside the quantitative cylinder (5), the bottom of the side wall of the quantitative cylinder (5) is sealedly connected to a liquid storage tank (7) through a liquid inlet pipe (6), the liquid storage tank (7) is fixedly installed on the support plate (4), the bottom of the quantitative cylinder (5) is connected to a liquid outlet pipe (8), the liquid outlet pipe (8) is located directly above the feeding port (22), and a protective cover (9) is sleeved on the outer side of the bottom of the liquid outlet pipe (8).

2. The quantitative dripping device for electrolyte additive according to claim 1, characterized in that: A plurality of fixing columns (24) are evenly arranged at the bottom of the mixing drum (2), and the bottoms of the plurality of fixing columns (24) are fixedly connected to the bottom plate (1).

3. The quantitative dripping device for electrolyte additive according to claim 2, characterized in that: The stirring device (21) comprises a stirring shaft (211), a rotating column (212), and a stirring paddle (213). A first motor (25) is fixedly arranged at the bottom of the stirring drum (2) via a motor bracket. The output end of the first motor (25) penetrates the bottom of the stirring drum (2) and is transmission-connected to the bottom end of the stirring shaft (211). A plurality of rotating columns (212) are evenly and radially arranged on the outer side of the middle of the stirring shaft (211). A first gear (214) is fixedly sleeved on the top of the stirring shaft (211). One end of the rotating column (212) away from the stirring shaft (211) is rotationally connected to the rotating shaft (215) via a bearing. A stirring paddle (213) is fixedly arranged on the top of the rotating shaft (215). A second gear (216) is sleeved on the outer side of the middle of the rotating shaft (215). The second gear (216) is meshed with the first gear (214).

4. The quantitative dripping device for electrolyte additive according to claim 3, characterized in that: The stirring paddle (213) comprises a connecting column (2131) and a plurality of stirring blades (2132); the bottom end of the connecting column (2131) is fixedly connected to the rotating shaft (215); the outer side of the connecting column (2131) is evenly and radiatedly provided with a plurality of stirring blades (2132); the side walls of the stirring blades (2132) away from the rotating shaft (215) are arc-shaped; and the stirring blades (2132) are in contact with the inner wall of the stirring drum (2) when rotating.

5. The quantitative dripping device for electrolyte additive according to claim 1, characterized in that: A first limiting ring (52) is fixedly arranged on the top of the quantitative cylinder (5), and the bottom of the first limiting ring (52) abuts against the top of the support plate (4). A second limiting ring (53) is fixedly sleeved on the upper side of the quantitative cylinder (5), and the top of the second limiting ring (53) abuts against the bottom of the support plate (4). Graduation lines are arranged on the outer side of the quantitative cylinder (5), and the quantitative cylinder (5) is made of transparent glass.

6. The quantitative dripping device for electrolyte additive according to claim 1, characterized in that: The outer sealing sliding sleeve of the liquid outlet pipe (8) is provided with a threaded cover plate (82), the interior of the threaded cover plate (82) is provided with an internal thread (821), the top end of the feed port (22) is provided with an external thread (221), and the internal thread (821) is adapted to the external thread (221).

7. The quantitative dripping device for electrolyte additive according to claim 1, characterized in that: A bracket (10) is arranged at the top of the quantitative cylinder (5), a second motor (101) is fixedly arranged on the bracket (10), the push rod (51) comprises a telescopic rod (511) and a push block (512), an output end of the second motor (101) passes through the bracket (10) and is fixedly connected to the top of the telescopic rod (511), a push block (512) is fixedly connected to the bottom of the telescopic rod (511), and the push block (512) is sealingly and slidably connected to the inside of the quantitative cylinder (5).

8. The quantitative dripping device for electrolyte additive according to claim 1, characterized in that: The protective cover (9) is U-shaped, and a plurality of liquid outlet holes (91) are evenly arranged on the side wall of the protective cover (9). A first positioning ring (92) is fixedly arranged on the top of the protective cover (9), a second positioning ring (93) is arranged above the first positioning ring (92), and the second positioning ring (93) is fixedly sleeved on the outside of the liquid outlet pipe (8). A plurality of springs (94) are arranged between the first positioning ring (92) and the second positioning ring (93), and when the springs (94) are in a normal state, the bottom of the liquid outlet pipe (8) abuts against the inner bottom wall of the protective cover (9).

9. The quantitative dripping device for electrolyte additive according to claim 1, characterized in that: The tops of the mixing drum (2) and the liquid storage tank (7) are both provided with air connection valves, the liquid inlet pipe (6) is provided with a first one-way valve (61), the liquid outlet pipe (8) is provided with a second one-way valve (81), and the discharge port (23) is provided with a solenoid valve.

10. A method for processing electrolyte additives, using the quantitative dropping device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, adding electrolyte into the mixing drum (2) from the feed port (22), stirring it continuously by the stirring device (21), and adding electrolyte additive into the liquid storage tank (7); S2. Adjust the height of the liquid outlet pipe (8) by means of the electric telescopic rod (3) so that the bottom end of the liquid outlet pipe (8) is located below the feed inlet (22), and the threaded cover plate (82) is threadedly connected to the feed inlet (22); S3, opening the first one-way valve (61), controlling the telescopic rod (511) and the push block (512) to move upwards through the second motor (101), and allowing the electrolyte additive to enter the quantitative cylinder (5) from the liquid storage tank (7); and when the push block (512) moves to a desired scale, closing the first one-way valve (61); S4, opening the second one-way valve (81), controlling the telescopic rod (511) and the push block (512) to move downwards through the second motor (101), the protective cover (9) moves downwards under the action of pressure, and the electrolyte additive is added to the electrolyte from the liquid outlet (91), and the electrolyte is stirred evenly by the stirring device (21); S5. The uniformly stirred electrolyte and electrolyte additive are discharged from the discharge port (23).

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