Full-automatic cleaning equipment for inner wall of lithium battery lithium salt ton barrel and ball valve

Abstract

The present application relates to a kind of lithium battery lithium salt ton barrel inner wall and the full-automatic cleaning equipment of ball valve, including lithium salt ton barrel (1), there is opening in lithium salt ton barrel (1) upper and lower, upper and lower opening of lithium salt ton barrel (1) is equipped with upper lifting mechanism (2) and lower lifting mechanism (3) respectively, upper lifting mechanism (2) will upper barrel mouth butt joint sealing mechanism (25) align upper barrel mouth and press into it, water injection line (24) passes through upper barrel mouth butt joint sealing mechanism (25) and inputs cleaning water to lithium salt ton barrel (1);Lower lifting mechanism (3) will lower barrel mouth butt joint sealing mechanism align lower barrel mouth and press into it, water outlet line passes through lower barrel mouth butt joint sealing mechanism and exports cleaned cleaning water from lithium salt ton barrel (1).The present application can replace traditional manual cleaning ton barrel, can batch to the inner wall and ball valve cleaning of ton barrel for recycling, wash barrel efficiency is high, barrel body is completely cleaned and will not cause harm to human body, and achieve process flow wasteless, save cost for customer, improve profit.

Description

TECHNICAL FIELD

[0001] The present application relates to a cleaning structure, in particular to a full-automatic cleaning equipment for the inner wall of lithium battery lithium salt ton barrel and ball valve. BACKGROUND

[0002] The electrolyte lithium salt is an important component of lithium ion battery, and its storage container is usually a 1000L stainless steel barrel with special structure. Since the quality of raw materials is extremely high for electrolyte production, the impurity requirement is in the order of millionth (i.e. ppm level), in order to achieve the purpose of recycling the electrolyte lithium salt barrel while ensuring the quality, the barrel must be cleaned to reduce the impurity content in the barrel.

[0003] The traditional method is manual cleaning with solvent, which has the defects of high labor intensity, time-consuming and laborious, low cleaning efficiency, incomplete cleaning, easy evaporation of solvent, etc. SUMMARY

[0004] The present application designs a full-automatic cleaning equipment for the inner wall of lithium battery lithium salt ton barrel and ball valve, which solves the technical problems of the traditional method of manual cleaning with solvent, high labor intensity, time-consuming and laborious, low cleaning efficiency, incomplete cleaning, easy evaporation of solvent, etc.

[0005] In order to solve the above technical problems, the present application adopts the following scheme:

[0006] A full-automatic cleaning equipment for the inner wall of lithium battery lithium salt ton barrel and ball valve, characterized in that: it comprises a lithium salt ton barrel (1), the lithium salt ton barrel (1) has openings at the top and bottom, the lithium salt ton barrel (1) is provided with an upper lifting mechanism (2) and a lower lifting mechanism (3) at the top and bottom openings respectively, the upper lifting mechanism (2) aligns the upper barrel opening with the upper barrel opening sealing mechanism (25) and presses it into the upper barrel opening, and the water injection pipeline (24) passes through the upper barrel opening sealing mechanism (25) to input cleaning water into the lithium salt ton barrel (1); the lower lifting mechanism (3) aligns the lower barrel opening with the lower barrel opening sealing mechanism and presses it into the lower barrel opening, and the water outlet pipeline passes through the lower barrel opening sealing mechanism to output the cleaned cleaning water from the lithium salt ton barrel (1).

[0007] Preferably, the upper jacking mechanism (2) comprises a first moving support plate (21) capable of horizontal X-direction movement and a second moving support plate (22) capable of horizontal Y-direction movement, the first moving support plate (21) and the second moving support plate (22) are connected so that the first moving support plate (21) has horizontal X-direction movement and horizontal Y-direction movement; the first moving support plate (21) is connected with a third moving support plate (26) through a guide rod (261) capable of axial extension and retraction, the third moving support plate (26) is connected with the upper barrel mouth docking and sealing mechanism (25), a first air cylinder (23) is installed on the first moving support plate (21) and acts on the third moving support plate (26) through a cylinder rod so that the third moving support plate (26) can move vertically in the Z-direction.

[0008] Preferably, the first moving support plate (21) moves horizontally in the X-direction through a first driving mechanism, the first driving mechanism comprises a first servo motor (211), a first lead screw (212), a first ball screw nut (213), and a first guide rail (214); the first servo motor (211) is installed on the second moving support plate (22), the first servo motor (211) drives the first lead screw (212) to rotate, the first ball screw nut (213) is connected with the first moving support plate (21), when the first lead screw (212) rotates, the first ball screw nut (213) and the first moving support plate (21) can move axially along the lead screw (212), the first moving support plate (21) realizes movement guidance through the first guide rail (214), and the first guide rail (214) is installed on the second moving support plate (22).

[0009] Preferably, the second moving support plate (22) moves horizontally in the Y-direction through a second driving mechanism, the second driving mechanism comprises a second servo motor (221), a second lead screw (222), a second ball screw nut (223), and a second guide rail (224); the second servo motor (221) is installed on a bracket, the second servo motor (221) drives the second lead screw (222) to rotate, the second ball screw nut (213) is connected with the second moving support plate (22), when the second lead screw (222) rotates, the second ball screw nut (223) and the second moving support plate (22) can move axially along the lead screw (222), and the second moving support plate (21) realizes movement guidance through the second guide rail (224), and the second guide rail (224) is installed on the bracket.

[0010] Preferably, the water injection pipeline (24) is provided with an upper valve opening and closing rotating mechanism and a water injection ball valve, the upper valve opening and closing rotating mechanism comprises a third servo motor (271), a rotating telescopic sleeve (272) and a second air cylinder (274), the third servo motor (271) rotates the rotating telescopic sleeve (272) to open or close the water injection ball valve; the second air cylinder (274) connects or separates the rotating telescopic sleeve (272) and the ball valve; and two moving adjustment blocks (273) are further included, the two moving adjustment blocks (273) are used for adjusting whether the position of the upper valve opening and closing rotating mechanism is aligned through same direction movement or opposite direction movement of a bidirectional air cylinder.

[0011] Preferably, the upper barrel mouth docking sealing mechanism (25) is provided with a plurality of sensors, when the plurality of sensors are all activated after the upper barrel mouth docking sealing mechanism (25) is docked with the upper barrel mouth, it indicates that the upper barrel mouth docking sealing mechanism (25) moves to the correct position.

[0012] Preferably, the lower barrel mouth docking sealing mechanism is provided with a plurality of sensors, when the plurality of sensors are all activated after the lower barrel mouth docking sealing mechanism is docked with the lower barrel mouth, it indicates that the lower barrel mouth docking sealing mechanism moves to the correct position.

[0013] Preferably, the upper lifting mechanism (2) and the lower lifting mechanism (3) are the same in structure.

[0014] Preferably, the water outlet pipeline is provided with a lower valve opening and closing rotating mechanism and a water outlet ball valve, the lower valve opening and closing rotating mechanism comprises a third servo motor, a rotating telescopic sleeve and a second air cylinder, the third servo motor rotates the rotating telescopic sleeve to open or close the water outlet ball valve; the second air cylinder connects or separates the rotating telescopic sleeve (272) and the water outlet ball valve; and two moving adjustment blocks (273) are further included, the two moving adjustment blocks (273) are used for adjusting whether the position of the lower valve opening and closing rotating mechanism is aligned through same direction movement or opposite direction movement of a bidirectional air cylinder.

[0015] A cleaning method of a lithium salt ton barrel inner wall and a ball valve, comprising the following steps:

[0016] Step 1, the lithium salt ton barrel (1) is transferred to a cleaning position through a conveying mechanism (4),

[0017] Step 2, the upper lifting mechanism (2) is started, the upper barrel mouth docking sealing mechanism (25) is aligned with the upper barrel mouth of the lithium salt ton barrel (1);

[0018] The lower lifting mechanism (3) is started, the lower barrel mouth docking sealing mechanism is aligned with the lower barrel mouth of the lithium salt ton barrel (1);

[0019] Step 3: Start the first cylinder (23) of the upper lifting mechanism (2) to press the upper barrel opening docking sealing mechanism (25) into the upper barrel opening and tighten it. When all the sensors on the upper barrel opening docking sealing mechanism (25) are activated, it indicates that the upper barrel opening docking sealing mechanism (25) has moved into place.

[0020] When the first cylinder of the lower lifting mechanism (2) is activated, it presses the lower barrel opening docking sealing mechanism into the lower barrel opening and tightens it. When all the sensors on the lower barrel opening docking sealing mechanism are activated, it indicates that the lower barrel opening docking sealing mechanism has moved into place.

[0021] Step 4: Start the upper and lower valve opening and closing rotation mechanism so that the upper and lower valve opening and closing rotation mechanism are respectively engaged with the water injection ball valve and the water outlet ball valve. The servo motor controls the opening of the water injection ball valve of the ton and controls the closing of the water outlet ball valve to inject clean water into the ton, so that the water injection pipeline (24) inputs cleaning water into the lithium salt ton (1) to clean the inner wall of the lithium salt ton (1) and the water injection ball valve.

[0022] Step 5: After cleaning, control the opening of the water outlet ball valve, and the water outlet pipeline will output the cleaning water. The cleaning water output from the water outlet pipeline will clean the inner wall of the lithium salt ton (1) and the water outlet ball valve.

[0023] The fully automatic cleaning equipment for the inner wall and ball valve of the lithium battery lithium salt ton container has the following beneficial effects:

[0024] (1) This invention can replace the traditional manual cleaning of ton containers. It can clean the inner wall and ball valve of ton containers used in batches. The cleaning efficiency is high, the container is thoroughly cleaned and will not cause harm to the human body. It also achieves zero waste in the process, saving costs and increasing profits for customers.

[0025] (2) When cleaning lithium salt ton, the upper lifting mechanism and the lower lifting mechanism accurately position the flange opening of the ton to ensure that the water inlet is tightly fitted and completely sealed with the ton opening, thus avoiding leakage. Attached Figure Description

[0026] Figure 1 : A perspective view of the cleaning structure of the inner wall of the salt ton container and the ball valve of the present invention;

[0027] Figure 2 : Figure 1 First schematic diagram of the upper lifting mechanism;

[0028] Figure 3 : Figure 1 Second schematic diagram of the upper lifting mechanism;

[0029] Figure 4 : A schematic diagram of the valve opening and closing rotation mechanism of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Lithium salt ton container; 2-Upper lifting mechanism; 21-First moving support plate; 211-First servo motor; 212-First lead screw; 213-First ball screw nut; 214-First guide rail; 22-Second moving support plate; 221-Second servo motor; 222-Second lead screw; 223-Second ball screw nut; 224-Second guide rail; 23-First cylinder; 24-Water injection pipeline; 25-Upper container opening sealing mechanism; 26-Third moving support plate; 261-Guide rod; 271-Third servo motor; 272-Rotating telescopic sleeve; 273-Moving adjustment block; 274-Second cylinder; 3-Lower lifting mechanism; 4-Conveying mechanism. Detailed Implementation

[0032] The following is combined Figures 1 to 4 The present invention will be further described as follows:

[0033] like Figure 1 As shown, a fully automatic cleaning equipment for the inner wall and ball valve of a lithium battery lithium salt ton container is characterized by: including a lithium salt ton container 1, with openings at the top and bottom, and an upper lifting mechanism 2 and a lower lifting mechanism 3 respectively provided at the top and bottom openings of the lithium salt ton container 1; the upper lifting mechanism 2 aligns the upper barrel opening sealing mechanism 25 with the upper barrel opening and presses it into the upper barrel opening, and a water injection pipe 24 passes through the upper barrel opening sealing mechanism 25 to input cleaning water into the lithium salt ton container 1; the lower lifting mechanism 3 aligns the lower barrel opening sealing mechanism with the lower barrel opening and presses it into the lower barrel opening, and a water outlet pipe passes through the lower barrel opening sealing mechanism to output the cleaned cleaning water from the lithium salt ton container 1.

[0034] like Figure 2 and Figure 3 As shown, the upper lifting mechanism 2 includes a first movable support plate 21 and a second movable support plate 22. The first movable support plate 21 can move horizontally in the X direction, and the second movable support plate 22 can move horizontally in the Y direction. The first movable support plate 21 and the second movable support plate 22 are connected so that the first movable support plate 21 can move horizontally in the X direction and horizontally in the Y direction. The first movable support plate 21 is connected to a third movable support plate 26 through a guide rod 261. The guide rod 261 can extend and retract axially. The third movable support plate 26 is connected to the upper barrel opening sealing mechanism 25. The first cylinder 23 is installed on the first movable support plate 21 and acts on the third movable support plate 26 through the cylinder rod so that it can move vertically in the Z direction.

[0035] The first mobile support plate 21 moves horizontally in the X direction by a first driving mechanism, which includes a first servo motor 211, a first screw rod 212, a first ball screw nut 213, and a first guide rail 214. The first servo motor 211 is installed on the second mobile support plate 22, and drives the first screw rod 212 to rotate. The first ball screw nut 213 is connected to the first mobile support plate 21, and when the first screw rod 212 rotates, the first ball screw nut 213 and the first mobile support plate 21 can move axially along the screw rod 212. The first mobile support plate 21 is guided by the first guide rail 214, which is installed on the second mobile support plate 22.

[0036] The second mobile support plate 22 moves horizontally in the Y direction by a second driving mechanism, which includes a second servo motor 221, a second screw rod 222, a second ball screw nut 223, and a second guide rail 224. The second servo motor 221 is installed on a bracket, and drives the second screw rod 222 to rotate. The second ball screw nut 213 is connected to the second mobile support plate 22, and when the second screw rod 222 rotates, the second ball screw nut 223 and the second mobile support plate 22 can move axially along the screw rod 222. The second mobile support plate 21 is guided by the second guide rail 224, which is installed on the bracket.

[0037] As shown in Figure 4 The water injection pipeline 24 is provided with an upper valve opening and closing rotating mechanism and a water injection ball valve. The upper valve opening and closing rotating mechanism includes a third servo motor 271, a rotating telescopic sleeve 272, and a second air cylinder 274. The third servo motor 271 rotates the rotating telescopic sleeve 272 to open or close the water injection ball valve. The second air cylinder 274 connects or separates the rotating telescopic sleeve 272 from the ball valve. Two moving adjustment blocks 273 are provided, which move in the same direction or in opposite directions by a bidirectional air cylinder to adjust whether the position of the upper valve opening and closing rotating mechanism is aligned.

[0038] The outer wall of the upper bucket mouth docking sealing mechanism 25 is provided with multiple sensors. When the multiple sensors are all activated after the upper bucket mouth docking sealing mechanism 25 is docked with the upper bucket mouth, it indicates that the upper bucket mouth docking sealing mechanism 25 has moved to the correct position. The outer wall of the lower bucket mouth docking sealing mechanism is provided with multiple sensors. When the multiple sensors are all activated after the lower bucket mouth docking sealing mechanism is docked with the lower bucket mouth, it indicates that the lower bucket mouth docking sealing mechanism has moved to the correct position.

[0039] The sensors on the upper bucket mouth docking sealing mechanism 25 and the lower bucket mouth docking sealing mechanism should remain activated during the entire cleaning process. When one or more sensors are not activated, it indicates that the upper and lower sealing mechanisms have not achieved the sealing effect, and therefore the cleaning needs to be stopped, otherwise there may be a liquid leakage situation.

[0040] The upper lifting mechanism 2 and the lower lifting mechanism 3 are the same in structure.

[0041] The water outlet pipeline is provided with a lower valve opening and closing rotating mechanism and a water outlet ball valve, the lower valve opening and closing rotating mechanism comprises a third servo motor, a rotating telescopic sleeve and a second air cylinder, the third servo motor rotates the rotating telescopic sleeve to open or close the water outlet ball valve; the second air cylinder connects or separates the rotating telescopic sleeve 272 and the water outlet ball valve; further comprising two moving adjustment blocks 273, the two moving adjustment blocks 273 are used for adjusting whether the position of the lower valve opening and closing rotating mechanism is aligned or not through same direction movement or reverse movement of a bidirectional air cylinder.

[0042] The cleaning method of the lithium salt ton barrel inner wall and the ball valve comprises the following steps:

[0043] Step 1, the lithium salt ton barrel 1 is transported to the cleaning position through the conveying mechanism 4.

[0044] Step 2, the upper lifting mechanism 2 is started, the upper barrel port abutting sealing mechanism 25 is aligned with the upper barrel port of the lithium salt ton barrel 1, and the lower lifting mechanism 3 is started, the lower barrel port abutting sealing mechanism is aligned with the lower barrel port of the lithium salt ton barrel 1.

[0045] Step 3, the first air cylinder 23 of the upper lifting mechanism 2 is started to press the upper barrel port abutting sealing mechanism 25 into the upper barrel port and press tightly, when all the sensors on the upper barrel port abutting sealing mechanism 25 are activated, it indicates that the upper barrel port abutting sealing mechanism 25 is moved to the position.

[0046] The first air cylinder of the lower lifting mechanism 2 is started to press the lower barrel port abutting sealing mechanism into the lower barrel port and press tightly, when all the sensors on the lower barrel port abutting sealing mechanism are activated, it indicates that the lower barrel port abutting sealing mechanism is moved to the position.

[0047] Step 4, the upper and lower valve opening and closing rotating mechanisms are started, the upper and lower valve opening and closing rotating mechanisms are respectively sleeved with the water injection and water outlet ball valve, the opening of the ton barrel water injection ball valve is controlled by the servo motor, the closing of the water outlet ball valve is controlled, and clean water is injected into the barrel, so that the water injection pipeline 24 inputs the cleaning water to the lithium salt ton barrel 1 to clean the inner wall of the lithium salt ton barrel 1 and the water injection ball valve.

[0048] Step 5, after cleaning, the opening of the water outlet ball valve is controlled, the cleaning water after cleaning is output by the water outlet pipeline, and the cleaning water output by the water outlet pipeline is used to clean the inner wall of the lithium salt ton barrel 1 and the water outlet ball valve.

[0049] The above has been described by way of example with reference to the drawings, and obviously the implementation of the present application is not limited to the above manner, various improvements are made by adopting the method concept and technical scheme of the present application, or the concept and technical scheme of the present application is directly applied to other occasions without improvement, all of which are within the protection scope of the present application.

Claims

1. A fully automatic cleaning equipment for the inner wall and ball valve of a lithium battery lithium salt ton container, characterized in that: The lithium salt ton barrel (1) has an upper opening and a lower opening, and the upper opening and the lower opening are respectively provided with an upper lifting mechanism (2) and a lower lifting mechanism (3). The upper lifting mechanism (2) is aligned with the upper barrel opening and is pressed into the upper barrel opening, and a water injection pipeline (24) penetrates the upper barrel opening abutting sealing mechanism (25) to input cleaning water into the lithium salt ton barrel (1). The lower lifting mechanism (3) is aligned with the lower barrel opening and is pressed into the lower barrel opening, and a water outlet pipeline penetrates the lower barrel opening abutting sealing mechanism to output the cleaned cleaning water from the lithium salt ton barrel (1); The upper lifting mechanism (2) includes a first moving support plate (21) and a second moving support plate (22). The first moving support plate (21) can move horizontally in the X direction, and the second moving support plate (22) can move horizontally in the Y direction. The first moving support plate (21) and the second moving support plate (22) are connected so that the first moving support plate (21) has horizontal X direction movement and horizontal Y direction movement. The first moving support plate (21) is connected with the third moving support plate (26) through the guide rod (261), the guide rod (261) can axially stretch and retract, the third moving support plate (26) is connected with the upper barrel opening abutting sealing mechanism (25), and the first cylinder (23) is installed on the first moving support plate (21) and acts on the third moving support plate (26) through the cylinder rod, so that the third moving support plate (26) can move vertically in the Z direction; The first moving support plate (21) moves horizontally in the X direction through the first driving mechanism, and the first driving mechanism includes a first servo motor (211), a first lead screw (212), a first ball screw nut (213), and a first guide rail (214). The first servo motor (211) is installed on the second moving support plate (22), the first servo motor (211) drives the first lead screw (212) to rotate, the first ball screw nut (213) is connected with the first moving support plate (21), and when the first lead screw (212) rotates, the first ball screw nut (213) and the first moving support plate (21) can move axially along the first lead screw (212). The first moving support plate (21) realizes movement guidance through the first guide rail (214), and the first guide rail (214) is installed on the second moving support plate (22); The second moving support plate (22) moves horizontally in the Y direction through the second driving mechanism, and the second driving mechanism includes a second servo motor (221), a second lead screw (222), a second ball screw nut (223), and a second guide rail (224). The second servo motor (221) is installed on the bracket, the second servo motor (221) drives the second lead screw (222) to rotate, the second ball screw nut (223) is connected with the second moving support plate (22), and when the second lead screw (222) rotates, the second ball screw nut (223) and the second moving support plate (22) can move axially along the second lead screw (222). The second moving support plate (22) realizes movement guidance through the second guide rail (224), and the second guide rail (224) is installed on the bracket. The water injection pipeline (24) is provided with an upper valve opening and closing rotating mechanism and a water injection ball valve. The upper valve opening and closing rotating mechanism comprises a third servo motor (271), a rotating telescopic sleeve (272) and a second air cylinder (274). The third servo motor (271) rotates the rotating telescopic sleeve (272) to open or close the water injection ball valve. The second air cylinder (274) connects or separates the rotating telescopic sleeve (272) and the ball valve.

2. The automatic cleaning equipment for the inner wall of lithium battery lithium salt ton barrel and ball valve according to claim 1, characterized in that: Two moving adjustment blocks (273) are further included. The two moving adjustment blocks (273) move in the same direction or in opposite directions through a bidirectional air cylinder to adjust whether the position of the upper valve opening and closing rotating mechanism is aligned.

3. The automatic cleaning apparatus for the inner wall of the lithium battery lithium salt ton barrel and the ball valve according to claim 2, characterized in that: The outer wall of the upper barrel mouth docking sealing mechanism (25) is provided with a plurality of sensors. When the plurality of sensors are all activated after the upper barrel mouth docking sealing mechanism (25) is docked with the upper barrel mouth, it indicates that the upper barrel mouth docking sealing mechanism (25) moves to the correct position.

4. The automatic cleaning apparatus for the inner wall of the lithium battery lithium salt ton barrel and the ball valve according to claim 3, characterized in that: The outer wall of the lower barrel mouth docking sealing mechanism is provided with a plurality of sensors. When the plurality of sensors are all activated after the lower barrel mouth docking sealing mechanism is docked with the lower barrel mouth, it indicates that the lower barrel mouth docking sealing mechanism moves to the correct position.

5. The automatic cleaning apparatus for the inner wall of lithium battery lithium salt ton barrel and ball valve according to claim 4, characterized in that: The upper lifting mechanism (2) and the lower lifting mechanism (3) have the same structure.

6. The automatic cleaning apparatus for the inner wall of lithium battery lithium salt ton barrel and ball valve according to claim 5, characterized in that: The water outlet pipeline is provided with a lower valve opening and closing rotating mechanism and a water outlet ball valve. The lower valve opening and closing rotating mechanism comprises a third servo motor, a rotating telescopic sleeve and a second air cylinder. The third servo motor rotates the rotating telescopic sleeve to open or close the water outlet ball valve. The second air cylinder connects or separates the rotating telescopic sleeve (272) and the water outlet ball valve. Two moving adjustment blocks (273) are further included. The two moving adjustment blocks (273) move in the same direction or in opposite directions through a bidirectional air cylinder to adjust whether the position of the lower valve opening and closing rotating mechanism is aligned.

7. A cleaning method for the inner wall of a lithium salt ton barrel and a ball valve, wherein the cleaning method uses the full-automatic cleaning equipment for the inner wall of a lithium battery lithium salt ton barrel and a ball valve according to claim 6, comprising the following steps: Step 1: The lithium salt ton barrel (1) is transferred to the cleaning position through the conveying mechanism (4); Step 2: The upper lifting mechanism (2) is started to align the upper barrel mouth docking sealing mechanism (25) with the upper barrel mouth of the lithium salt ton barrel (1); The lower lifting mechanism (3) is started to align the lower barrel mouth docking sealing mechanism with the lower barrel mouth of the lithium salt ton barrel (1); Step 3: The first air cylinder (23) of the upper lifting mechanism (2) is started to press the upper barrel mouth docking sealing mechanism (25) into the upper barrel mouth and tighten it. When all the sensors on the upper barrel mouth docking sealing mechanism (25) are activated, it indicates that the upper barrel mouth docking sealing mechanism (25) moves to the correct position; The first air cylinder of the lower lifting mechanism (3) is started to press the lower barrel mouth docking sealing mechanism into the lower barrel mouth and tighten it. When all the sensors on the lower barrel mouth docking sealing mechanism are activated, it indicates that the lower barrel mouth docking sealing mechanism moves to the correct position; Step 4, start the upper and lower valve opening and closing rotating mechanism, so that the upper and lower valve opening and closing rotating mechanism is respectively sleeved with the water injection and water outlet ball valve, and the opening of the ton barrel water injection ball valve is controlled by the servo motor, the closing of the water outlet ball valve is controlled, and the clean water is injected into the barrel, so that the water injection pipeline (24) inputs the cleaning water to the lithium salt ton barrel (1) to clean the inner wall of the lithium salt ton barrel (1) and the water injection ball valve; Step 5, after cleaning, control the opening of the water outlet ball valve, and the water outlet pipeline outputs the cleaned cleaning water, and the cleaning water output by the water outlet pipeline cleans the inner wall of the lithium salt ton barrel (1) and the water outlet ball valve.

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