Cooling device of lithium battery stirrer

Abstract

The cooling device comprises a rotary mixing drum and a driving part, the rotary mixing drum is provided with a rotating part, the rotating part is used for bearing lithium battery slurry, the driving part is used for driving the rotating part to rotate, and the rotating part is spirally provided with a double-helix jacket along the height of the rotary mixing drum; the double-helix jacket is provided with a cooling channel for circulating freezing water to flow, the circulating freezing water in the cooling channel is used for cooling the rotating part, the rotating part is arranged on the rotating stirring barrel through the rotating tray, the double-helix jacket is adopted for cooling the rotating stirring barrel, the heat exchange efficiency is improved, the slurry stirring time is shortened, and the production efficiency is improved; the process requirements of the slurry are met.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a cooling device for a lithium battery mixer. Background Art

[0002] As the quality requirements of lithium batteries are getting higher and higher, their production technology is also developing. In addition to the low-speed stirring of the stirring parts, the lithium battery mixer also has a high-speed dispersing effect of the dispersing parts. In addition to the low-speed stirring of the stirring parts, the lithium battery mixer also has a high-speed dispersing effect of the dispersing parts. Due to the high speed and the lack of direct cooling, the temperature of the upper part of the dispersing parts is high, which affects the quality of the lithium battery slurry and the service life of related bearings, transmission belts and other parts in the lithium battery mixer.

[0003] At present, the circulating cooling system for lithium battery mixers mainly adopts heat transfer oil circulating cooling method in the interlayer between the rotating mixing drum and the outer drum, which has poor cooling effect on the slurry in the rotating mixing drum and cannot fully meet the process requirements.

[0004] Therefore, it is necessary to improve the cooling effect of the rotating mixing drum so that it meets the slurry process requirements. Utility Model Content

[0005] In view of this, the utility model provides a cooling device for a lithium battery mixer, which adopts a double spiral jacket to cool the rotating mixing drum, improves the heat exchange efficiency, shortens the slurry stirring time, improves the production efficiency, and meets the process requirements of the slurry.

[0006] The cooling device of a lithium battery mixer provided by the utility model adopts the following technical scheme:

[0007] A cooling device for a lithium battery mixer comprises a rotating mixing drum and a driving member, wherein the rotating mixing drum has a rotating portion, the rotating portion is used to carry lithium battery slurry, the driving member is used to drive the rotating portion to rotate, the rotating portion is spirally provided with a double helical jacket along the height of the rotating mixing drum, the double helical jacket has a cooling channel for circulating refrigerated water, the refrigerated circulating water in the cooling channel is used to cool the rotating portion, and the rotating portion is arranged on the rotating mixing drum through a rotating tray.

[0008] Optionally, a rotating joint is provided on the rotating tray, and the rotating joint has a moving ring and a stationary ring, the moving ring is rotatable relative to the stationary ring, and a refrigerated circulating water inlet and a refrigerated circulating water outlet are provided on the stationary ring of the rotating joint. The refrigerated circulating water flows from the refrigerated circulating water inlet of the stationary ring of the rotating joint through the moving ring of the rotating joint and the water inlet of the rotating tray and enters the cooling channel from the water inlet of the double spiral jacket.

[0009] Optionally, the moving ring of the rotary joint has a return water channel, which is in communication with the refrigerated circulating water outlet of the stationary ring of the rotary joint. The refrigerated circulating water flows from the water outlet of the double spiral jacket through the water inlet of the rotating tray and the return water channel of the moving ring of the rotary joint, and flows out from the refrigerated circulating water outlet of the stationary ring of the rotary joint.

[0010] Optionally, the movable ring of the rotary joint is connected to the lower end surface of the rotating tray, the water outlet of the movable ring of the rotary joint is aligned and connected with the water inlet of the rotating tray, and the water inlet of the movable ring of the rotary joint is aligned and connected with the water outlet of the rotating tray.

[0011] Optionally, the rotating mixing drum includes a mounting plate, a sealing outer drum arranged on the mounting plate, a sealing machine cover arranged on the sealing outer drum and a rotating inner drum, the sealing outer drum is rotatably matched with the rotating inner drum to form a rotating portion, and the double helical jacket is arranged on the rotating inner drum.

[0012] Optionally, a swivel support is provided on the mounting plate, the rotating tray is provided on the swivel support, and the rotating inner cylinder rotates relative to the sealing outer cylinder through the swivel support.

[0013] Optionally, the water outlet of the double-helix jacket is aligned and connected with the water inlet of the rotating tray, and the water inlet of the double-helix jacket is aligned and connected with the water outlet of the rotating tray.

[0014] Optionally, a sealing ring is provided between the water inlet of the double spiral jacket and the water inlet of the rotating tray and between the water outlet of the double spiral jacket and the water outlet of the rotating tray for pressure sealing.

[0015] Optionally, the driving member is used to drive the rotating inner cylinder to rotate clockwise.

[0016] Optionally, the left end of the double spiral jacket is a water inlet, and the right end is a water outlet.

[0017] In summary, the utility model includes at least one of the following beneficial technical effects: improving heat exchange efficiency, shortening slurry stirring time, improving production efficiency, and meeting slurry process requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 It is a schematic structural diagram of a double spiral jacket according to an embodiment of the utility model.

[0021] Explanation of the accompanying drawings: 1. Sealing machine cover; 2. Sealing outer cylinder; 3. Rotating inner cylinder; 4. Rotating tray; 5. Active rotating gear; 6. Slewing support; 7. Rotating joint; 8. Mounting plate; 9. Double spiral jacket. DETAILED DESCRIPTION

[0022] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0023] The following is combined with Figure 1-2 The utility model is described in further detail.

[0024] The utility model embodiment discloses a temperature reduction device for a lithium battery mixer.

[0025] Reference Figure 1 , Figure 2 A cooling device for a lithium battery mixer comprises a rotating mixing drum and a driving member, the rotating mixing drum having a rotating portion, the rotating portion being used to carry lithium battery slurry, the driving member being used to drive the rotating portion to rotate, the rotating portion being spirally provided with a double spiral jacket 9 along the height of the rotating mixing drum, the double spiral jacket 9 having a cooling channel for the flow of refrigerated circulating water, the refrigerated circulating water in the cooling channel being used to cool the rotating portion, the rotating portion being arranged on the rotating mixing drum through a rotating tray 4, the double spiral jacket 9 being used to cool the rotating mixing drum, thereby improving heat exchange efficiency, shortening slurry stirring time, improving production efficiency, and meeting the process requirements of the slurry.

[0026] In this embodiment, the rotating mixing drum includes a mounting plate 8, a sealed outer cylinder 2, a sealed machine cover 1 and a rotating inner cylinder 3. The sealed outer cylinder 2 is mounted on the mounting plate 8. The sealed machine cover 1 is mounted on the sealed outer cylinder 2 and closes the opening of the rotating inner cylinder 3. The sealed machine cover 1 is sealed and mounted on the sealed outer cylinder 2. A fixing part is provided on the sealed outer cylinder 2 for fixing the sealed machine cover 1 on the sealed outer cylinder 2. The rotating inner cylinder 3 is rotatably matched with the sealed outer cylinder 2 to form a rotating part. The double helical jacket 9 is provided on the rotating inner cylinder 3.

[0027] The mounting plate 8 is provided with a slewing support 6, and a rotating tray 4 is provided on the slewing support 6. The rotating inner cylinder 3 rotates relative to the sealing outer cylinder 2 through the slewing support 6. The slewing support 6 has a rotating part, and the rotating inner cylinder 3 is coaxially fixedly installed on the slewing support 6 through the slewing support 6. The rotation of the slewing support 6 drives the rotating inner cylinder 3 to rotate. The rotating tray 4 has a water inlet and a water outlet. The water inlet of the rotating tray 4 is in communication with the water outlet of the moving ring of the rotating joint 7, and the water outlet of the rotating tray 4 is in communication with the water inlet of the moving ring of the rotating joint 7.

[0028] A rotating joint 7 is provided on the rotating tray 4. The rotating joint 7 is coaxially arranged with the rotating inner cylinder 3. The rotating joint 7 has a moving ring and a stationary ring. The rotating joint 7 is divided into an upper and lower part. The upper part is the moving ring and the lower part is the stationary ring. The moving ring is rotatable relative to the stationary ring. A refrigerated circulating water inlet and a refrigerated circulating water outlet are provided on the stationary ring of the rotating joint 7. The refrigerated circulating water flows from the stationary ring of the rotating joint 7 through the moving ring of the rotating joint 7 and the water inlet of the rotating tray 4 and enters the cooling channel from the water inlet of the double spiral jacket 9.

[0029] The moving ring of the rotary joint 7 has a return water channel, which circulates with the static ring of the rotary joint. The refrigerated circulating water flows from the water outlet of the double spiral jacket 9 through the water outlet of the rotating tray 4 and the return water channel of the moving ring of the rotary joint 7, and flows out from the refrigerated circulating water outlet of the static ring of the rotary joint 7.

[0030] The moving ring of the rotary joint 7 is connected to the lower end surface of the rotating tray 4 , the water outlet of the moving ring of the rotary joint 7 is aligned and connected with the water inlet of the rotating tray 4 , and the water inlet of the moving ring of the rotary joint 7 is aligned and connected with the water outlet of the rotating tray 4 .

[0031] In this embodiment, the double-helix jacket 9 has a cooling channel, and the cooling channel can enable the cooling circulating water to move from the bottom through the cooling channel to the top, and then move along the cooling channel to the bottom and flow out to achieve circulation.

[0032] The left end of the double spiral jacket 9 is a water inlet, and the right end is a water outlet. The water outlet of the double spiral jacket 9 is aligned and connected with the water inlet of the rotating tray 4, and the water inlet of the double spiral jacket 9 is aligned and connected with the water outlet of the rotating tray 4.

[0033] A sealing ring is provided between the water inlet of the double spiral jacket 9 and the water inlet of the rotating tray 4 and between the water outlet of the double spiral jacket 9 and the water outlet of the rotating tray 4 for pressure sealing. The sealing ring adopts an O-ring, the moving ring of the rotary joint 7 is connected to the central lower end surface of the rotating tray 4, the water outlet of the moving ring of the rotary joint 7 is aligned and connected with the water inlet of the central lower end surface of the rotating tray 4, and is pressure sealed with an O-ring; the water inlet of the moving ring of the rotary joint 7 is aligned and connected with the water outlet of the central lower end surface of the rotating tray 4, and is pressure sealed with an O-ring.

[0034] The driving member is used to drive the rotating inner drum 3 to rotate clockwise. The driving member is a reduction motor, and the reduction motor has an active rotating gear 5. The active rotating gear 5 installed on the reduction motor drives the slewing support 6 to drive the rotating inner drum to rotate clockwise.

[0035] A heat dissipation device is provided between the chilled circulating water inlet and the chilled circulating water outlet, and the chilled water discharged from the chilled circulating water outlet flows into the chilled circulating water inlet after passing through the heat dissipation device. In this embodiment, the heat dissipation device adopts a plate heat exchanger, which is used to cool the chilled water at the chilled circulating water outlet, and after cooling, the chilled water is discharged into the chilled circulating water inlet through a water pump, so that the whole chilled water forms a circulation.

[0036] The refrigerated circulating water enters from the refrigerated circulating water inlet on the static ring of the rotary joint 7, passes through the dynamic ring of the rotary joint 7 and the water inlet on the lower end face of the center of the rotating tray 4, enters the water inlet at the left end of the double helix jacket 9, spirally circulates upward to the upper end, and then spirally circulates downward from the upper end to the right end of the double helix jacket 9, passes through the water inlet of the rotating tray 4 and the return water channel of the dynamic ring of the rotary joint 7, and comes out from the refrigerated circulating water outlet of the static ring of the rotary joint 7, completing the heat exchange of the inner wall of the rotating inner barrel to cool the lithium battery slurry in the rotating inner barrel.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make some improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A cooling device for a lithium battery mixer, characterized in that: It includes a rotating mixing drum and a driving member, the rotating mixing drum has a rotating part, the rotating part is used to carry lithium battery slurry, the driving member is used to drive the rotating part to rotate, the rotating part is spirally arranged with a double helical jacket along the height of the rotating mixing drum, the double helical jacket has a cooling channel for circulating refrigerated water, the refrigerated circulating water in the cooling channel is used to cool the rotating part, and the rotating part is arranged on the rotating mixing drum through a rotating tray.

2. The cooling device for a lithium battery mixer according to claim 1, characterized in that: A rotating joint is arranged on the rotating tray, and the rotating joint has a moving ring and a stationary ring. The moving ring is rotatable relative to the stationary ring. A refrigerated circulating water inlet and a refrigerated circulating water outlet are arranged on the stationary ring of the rotating joint. The refrigerated circulating water flows from the refrigerated circulating water inlet of the stationary ring of the rotating joint through the moving ring of the rotating joint and the water inlet of the rotating tray and enters into the cooling channel from the water inlet of the double spiral jacket.

3. The cooling device for a lithium battery mixer according to claim 2, characterized in that: The moving ring of the rotary joint has a return water channel, and the return water channel is in communication with the refrigerated circulating water outlet of the stationary ring of the rotary joint. The refrigerated circulating water flows from the water outlet of the double spiral jacket through the water inlet of the rotating tray and the return water channel of the moving ring of the rotary joint, and flows out from the refrigerated circulating water outlet of the stationary ring of the rotary joint.

4. The cooling device for a lithium battery mixer according to claim 2, characterized in that: The moving ring of the rotating joint is connected to the lower end surface of the rotating tray, the water outlet of the moving ring of the rotating joint is aligned and connected with the water inlet of the rotating tray, and the water inlet of the moving ring of the rotating joint is aligned and connected with the water outlet of the rotating tray.

5. The cooling device for a lithium battery mixer according to claim 2, characterized in that: The rotating mixing drum comprises a mounting plate, a sealing outer drum arranged on the mounting plate, a sealing machine cover arranged on the sealing outer drum and a rotating inner drum. The sealing outer drum is rotatably matched with the rotating inner drum to form a rotating part, and the double helical jacket is arranged on the rotating inner drum.

6. The cooling device for a lithium battery mixer according to claim 5, characterized in that: The mounting plate is provided with a slewing support, the rotating tray is provided on the slewing support, and the rotating inner cylinder rotates relative to the sealing outer cylinder through the slewing support.

7. The cooling device for a lithium battery mixer according to claim 6, characterized in that: The water outlet of the double-helix jacket is aligned and connected with the water inlet of the rotating tray, and the water inlet of the double-helix jacket is aligned and connected with the water outlet of the rotating tray.

8. The cooling device for a lithium battery mixer according to claim 7, characterized in that: A sealing ring is arranged between the water inlet of the double spiral jacket and the water inlet of the rotating tray and between the water outlet of the double spiral jacket and the water outlet of the rotating tray for pressure sealing.

9. The cooling device for a lithium battery mixer according to claim 5, characterized in that: The driving member is used to drive the rotating inner cylinder to rotate clockwise.

10. The cooling device for a lithium battery mixer according to claim 5, characterized in that: The left end of the double spiral jacket is a water inlet, and the right end is a water outlet.

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