CN214973159U - Horizontal cooling kettle for negative electrode material - Google Patents

Abstract

The utility model provides a horizontal cooling kettle for negative electrode materials, which comprises a stirring shaft and a kettle body which is transversely arranged, wherein the open end of the kettle body is connected with an end cover through a flange, the stirring shaft is arranged in the kettle body through the end cover, a driving mechanism is arranged on the shaft section of the stirring shaft which is positioned outside the kettle body, a first jacket is sleeved on the kettle body, a first water inlet is arranged at the bottom of one end of the first jacket, a first water outlet is arranged at the top of the other end of the first jacket, a plurality of flow deflectors are arranged between the first water inlet and the first water outlet, and are all fixedly arranged on the outer wall of the kettle body, and a plurality of flow deflectors are spirally arranged on the kettle body, and spiral flow guiding spaces are formed among the flow deflectors in the first jacket to play a role in guiding cooling water to flow along the outer surface of the kettle body, so as to avoid the problem of detention of cooling water and further realize the purpose of improving the cooling efficiency of the cooling kettle.

Description

Horizontal cooling kettle for negative electrode material

Technical Field

The utility model relates to a lithium cell negative electrode material production cooling technology field, concretely relates to horizontal cooling kettle of negative electrode material.

Background

The production of lithium battery cathode materials needs to pass through a high-temperature coating granulation link, the main process is to repeatedly stir and mix graphene powder and asphalt powder in a high-temperature state (up to 700 ℃ and above), so that the asphalt powder is melted and coated on the outer surface of graphene particles to prepare the lithium battery cathode materials, after the high-temperature coating granulation link is completed, cooling operation needs to be carried out, the cooling process is mainly carried out in a cooling kettle, the cooling kettle is divided into a vertical cooling kettle and a horizontal cooling kettle, the vertical cooling kettle is easily limited by the height of a production workshop and cannot be designed too much due to the environment limitation, so that the yield is influenced, but the horizontal cooling kettle is not high and has less environmental limitation effect, so that the yield can be broken through, and the horizontal cooling kettle is more and more favored by the market.

Chinese patent application No. CN201620884380.4 discloses a horizontal cooling kettle, the cooling structure of this application is mainly to set a jacket layer at the kettle body jacket, the top of the jacket layer is provided with a cooling water inlet, the bottom is provided with a cooling water outlet, and the cooling water outlet and the cooling water inlet are respectively arranged at the left and right ends of the jacket, the cooling mode of the cooling water up-and-down can reach a certain cooling effect to a certain extent, but because the cooling water is in the cooling process, the temperature can be raised correspondingly, the density of the water can be reduced, so in practical application, a part of the heated water can be retained in the jacket above the cooling water outlet, and the water flow in the jacket cavity below the cooling water inlet can also be slowed down due to the steering effect, so that the retention problem of the cooling water can be easily caused in the jacket below the cooling water inlet, the cooling water subsequently entered can easily appear and directly leave the kettle from the cooling water without flowing through the whole kettle body outlet, under the effect of the cooling water The cooling efficiency of the cooling structure of the horizontal cooling kettle is not high.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a horizontal cooling kettle of cathode material to solve the not good technical problem of cooling effect of the cooling structure of the current horizontal cooling kettle who mentions in the background art.

The technical scheme of the utility model is realized like this:

a horizontal cooling kettle for negative electrode materials comprises a stirring shaft and a kettle body which is transversely arranged, wherein the open end of the kettle body is connected with an end cover through a flange, the stirring shaft is arranged in the kettle body through the end cover, a driving mechanism is arranged on a shaft section of the stirring shaft which is positioned outside the kettle body, a first jacket is sleeved on the kettle body, a first water inlet is arranged at the bottom of one end of the first jacket, a first water outlet is arranged at the top of the other end of the first jacket, the first water inlet is communicated with the first water outlet through a cavity between the first jacket and the kettle body, a plurality of flow deflectors are arranged between the first water inlet and the first water outlet, the flow deflectors are fixedly arranged on the outer wall of the kettle body, the flow deflectors are spirally arranged on the kettle body, and the flow deflectors spirally surrounding the outer wall of the kettle body are arranged in the cavity between the first jacket and the kettle body, when cooling water enters the inner cavity of the first jacket from the first water inlet, the cooling water can flow on the outer wall of the kettle body in a manner of spirally surrounding the outer wall of the kettle body in the direction of the first water outlet under the flow guide effect of the flow guide sheet, and finally flows out of the first jacket through the first water outlet after the cooling water flows through all the outer wall surfaces of the kettle body covered by the first jacket.

Furthermore, the outer diameter of the flow deflector is smaller than the inner diameter of the first jacket, so that a certain gap exists between the flow deflector and the inner wall of the first jacket, the gap can also play a role in helping bubbles in the flow deflector to flow, and the final flow direction of cooling water is the first water outlet, so that the bubbles existing at the top of the kettle body can cross over the flow deflector to flow to the first water outlet under the driving action of the flow of the cooling water, and the aim of exhausting is fulfilled.

Furthermore, a second jacket is arranged on the end cover, a second water inlet is formed in the bottom of the second jacket, a second water inlet is formed in the top of the second jacket, the second water inlet is communicated with the second water outlet through a cavity between the second jacket and the end cover, and cooling water is introduced into the second water inlet, so that the purpose of cooling the end cover can be achieved, and the effect of further improving the cooling efficiency is achieved.

Furthermore, a third jacket is arranged on the closed end of one side of the kettle body, a third water inlet is arranged at the bottom of the third jacket, a third water outlet is arranged at the top of the third jacket, the third water inlet is communicated with the third water outlet through a cavity between the third jacket and the closed end of the kettle body, and cooling water is introduced into the third water inlet, so that the purpose that the closed end of the kettle body far away from the end cover is achieved, and the effect of further improving the cooling efficiency is achieved.

Further, still include two first spiral stirring areas, the (mixing) shaft has a plurality of puddler, and is a plurality of the puddler is in be the symmetry setting on the (mixing) shaft, two first spiral stirring area sets firmly respectively the both ends of puddler, the symmetry sets up two first spiral stirring areas on the puddler, can play the effect that improves stirring efficiency.

Further, still include two revolve to with first spiral stirring takes opposite second spiral stirring area, the external diameter in second spiral stirring area is less than the internal diameter in first spiral stirring area, second spiral stirring area all fixes on the puddler, and two second spiral stirring area is in be the symmetry setting on the puddler, can play the effect that further improves stirring efficiency.

Furthermore, the stirring shaft is sleeved with the temperature measuring slip ring and the temperature sensors, the stirring shaft is arranged on the shaft section outside the kettle body, the temperature sensors are fixedly arranged in the inner cavity of the kettle body and on the stirring shaft, the temperature sensors are electrically connected with the temperature measuring slip ring, the temperature sensors are fixedly arranged on the stirring shaft far away from the inner wall of the kettle body, the temperature sensor is not affected by the temperature of the inner wall of the kettle body, and the temperature measuring accuracy of the temperature sensors is improved.

Furthermore, at least one temperature sensor is fixedly arranged on the stirring rod, so that the effect of further expanding the temperature measurement range can be achieved.

The utility model has the advantages that: what form between the water conservancy diversion piece in the first clamp cover is spiral helicine water conservancy diversion space, play the effect that guide cooling water flows along the external surface of cauldron, in order to play the detention problem of avoiding appearing cooling water, and then realize improving cooling kettle's cooling efficiency's purpose, second clamp cover and third clamp cover can play the effect that further improves cooling efficiency, set up two first spiral stirring area and the second spiral stirring area that revolve to opposite respectively, can play the effect that improves stirring efficiency, set up temperature sensor on (mixing) shaft and puddler, play the effect that improves the temperature measurement accuracy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of a connecting structure of a first jacket of a horizontal cooling kettle for negative electrode materials of the present invention on a kettle body;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic view of the internal structure of a horizontal cooling kettle for negative electrode materials of the present invention;

fig. 4 is a partially enlarged view of a portion B in fig. 3.

The attached drawings are as follows: 1. a stirring shaft; 2. a kettle body; 3. an end cap; 4. a first jacket; 5. a first water inlet; 6. a first water outlet; 7. a flow deflector; 8. a second jacket; 9. a second water inlet; 10. a second water outlet; 11. a third jacket; 12. a third water inlet; 13. a third water outlet; 14. a first helical agitating belt; 15. a stirring rod; 16. a second helical agitating belt; 17. a temperature measuring slip ring; 18. a temperature sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 4, a horizontal cooling kettle for cathode materials comprises a stirring shaft 1 and a kettle body 2 arranged transversely, wherein the open end of the kettle body 2 is connected with an end cover 3 through a flange, the stirring shaft 1 is arranged in the kettle body 2 through the end cover 3, and a driving mechanism is arranged on the shaft section of the stirring shaft 1 outside the kettle body 2, wherein the driving mechanism is used for driving the stirring shaft 1 to rotate and at least comprises a motor, referring to fig. 1, a first jacket 4 is sleeved on the kettle body 2, a first water inlet 5 is arranged at the bottom of one end of the first jacket 4, a first water outlet 6 is arranged at the top of the other end of the first jacket 4, a plurality of flow deflectors 7 are arranged between the first water inlet 5 and the first water outlet 6, the plurality of flow deflectors 7 are all fixedly arranged on the outer wall of the kettle body 2, and the plurality of flow deflectors 7 are arranged spirally on the kettle body 2, and the flow deflectors 7 spirally surround the outer wall of the kettle body 2 are arranged in a cavity between the first jacket 4 and the kettle body 2, when cooling water enters the inner cavity of the first jacket 4 from the first water inlet 5, the cooling water flows on the outer wall of the kettle body 2 in the direction of the first water outlet 6 in a manner of spirally surrounding the outer wall of the kettle body 2 under the flow guiding effect of the flow guiding sheet 7, and finally flows out of the first jacket through the first water outlet 6 after the cooling water flows through the outer wall surface of the kettle body 2 covered by the first jacket 4, so that the cooling water entering the first jacket 4 can flow through the outer wall surface of the kettle body 2 through the flow guiding effect of the flow guiding sheet 7, namely, the cooling water entering the first jacket 4 can participate in the heat exchange process, so as to achieve the purpose of reducing the temperature in the kettle body 2, and the flow guiding effect of the flow guiding sheet 7 avoids the problem of the cooling water staying in the first jacket 4, thereby improving the cooling efficiency of the horizontal cooling kettle.

Preferably, referring to fig. 2, the outer diameter of the baffle 7 is smaller than the inner diameter of the first jacket 4, so that a certain gap exists between the baffle 7 and the inner wall of the first jacket 4, the gap can also play a role in assisting the flow of bubbles in the baffle 7, and the final flow direction of the cooling water is the first water outlet 6, so that the bubbles existing at the top of the kettle body can flow over the baffle 7 to the first water outlet 6 under the driving action of the flow of the cooling water, thereby achieving the purpose of exhausting.

Preferably, referring to fig. 1 and 3, a second jacket 8 is arranged on the end cover 3, a second water inlet 9 is arranged at the bottom of the second jacket 8, a second water outlet 10 is arranged at the top of the second jacket 8, the second water inlet 9 is communicated with the second water outlet 10 through a cavity between the second jacket 8 and the end cover 3, and cooling water is introduced into the second water inlet 9, so that the purpose of cooling the end cover can be achieved, and the effect of further improving the cooling efficiency is achieved.

Preferably, referring to fig. 1 and 3, a third jacket 11 is arranged on the closed end of one side of the kettle body 2, a third water inlet 12 is arranged at the bottom of the third jacket 11, a third water outlet 13 is arranged at the top of the third jacket 11, the third water inlet 12 is communicated with the third water outlet 13 through a cavity between the third jacket 11 and the closed end of the kettle body 2, and cooling water is introduced into the third water inlet 12, so that the purpose of cooling the closed end of the kettle body 2 far away from the end cover 3 can be achieved, and the effect of further improving the cooling efficiency is achieved.

Preferably, referring to fig. 3, still include two first spiral agitator bands 14, the (mixing) shaft 1 has a plurality of puddler 15, a plurality of puddler 15 are the symmetry setting on the (mixing) shaft 1, the puddler 15 that the symmetry set up, at the pivoted in-process, can play the effect of avoiding (mixing) shaft 1 atress uneven, be favorable to improving structural stability, two first spiral agitator bands 14 set firmly respectively at the both ends of puddler 15, first spiral agitator band 14 can play the effect of the internal negative pole material of stirred tank, two first spiral agitator bands 14 are set up to the symmetry on puddler 15, can play the effect that improves stirring efficiency.

Preferably, referring to fig. 3, the negative electrode material stirring device further includes two second helical stirring belts 16 with a rotation direction opposite to that of the first helical stirring belt 14, an outer diameter of the second helical stirring belt 16 is smaller than an inner diameter of the first helical stirring belt 14, the second helical stirring belts 16 are both fixed on the stirring rod 15, the two second helical stirring belts 16 are symmetrically arranged on the stirring rod 15, rotation directions of the second helical stirring belts 16 are opposite, when stirring is performed, reverse pushing action between the first helical stirring belt 14 and the second helical stirring belt 16 can play a role in repeatedly turning over and stirring the negative electrode material, and can play a role in stirring and cooling while avoiding caking between the negative electrode materials, and the two second helical stirring belts 16 are symmetrically arranged, so that the stirring efficiency can be further improved.

Preferably, referring to fig. 3 and 4, the stirring apparatus further comprises a temperature measuring slip ring 17 and a plurality of temperature sensors 18, the temperature measuring slip ring 17 is sleeved on a shaft section of the stirring shaft 1 outside the kettle body 2, the temperature measuring sensors 18 are fixedly arranged on the stirring shaft 1 in the inner cavity of the kettle body 2, the temperature sensors 18 are electrically connected with the temperature measuring slip ring 17, wherein the temperature measuring slip ring 17 is used for being connected with an interface of an external temperature measuring control system, such as a single chip microcomputer, a PLC programmable controller and the like, so as to realize real-time communication transmission of temperature measuring signals, the temperature sensors 18 are fixedly arranged on the stirring shaft 1 far away from the inner wall of the kettle body, so that the temperature sensors 18 are not affected by the temperature of the inner wall of the kettle body, the temperature measuring accuracy of the temperature sensors is improved, the plurality of temperature sensors 18 are distributed and mounted on the stirring shaft 1, and the purpose of real-time multi-point temperature measurement of the cathode material in the kettle body can be realized along with the rotation of the stirring shaft 1, further improving the temperature measurement accuracy. In this embodiment, the temperature measuring slip ring 17 plays a role of stably transmitting a temperature signal measured by the temperature sensor 18 rotating along with the stirring shaft 1, and regarding the installation and arrangement form of the temperature measuring lead wire for connecting the temperature measuring slip ring 17 and the temperature sensor 18, a form of forming an embedded groove on the stirring shaft can be adopted, the temperature measuring lead wire of the sensor is embedded into the embedded groove in advance, and then the embedded groove is sealed, so that the stable installation of the temperature measuring lead wire can be realized.

Preferably, referring to fig. 4, at least one temperature sensor 18 is fixed to the stirring rod 15, which can further extend the temperature measurement range.

The working principle is as follows: the cooling water enters the inner cavity of the first jacket 4 from the first water inlet, and because the cooling water has certain flowing pressure, the cooling water entering the first jacket 4 flows along the spiral flow guide channel formed between the flow guide plates 7 under the flow guide effect of the flow guide plates 7, and the end point of the spiral flow guide channel is the first water outlet 6, so that after the cooling water flows through the outer surfaces of all kettle bodies covered by the jacket 4, the cooling water can inevitably flow through the first water outlet 6 and flow out of the first jacket 4, and the purpose of cooling the kettle bodies is achieved.

The beneficial effects of this embodiment: what form between the water conservancy diversion piece in the first clamp cover is spiral helicine water conservancy diversion space, play the effect that guide cooling water flows along the external surface of cauldron, in order to play the detention problem of avoiding appearing cooling water, and then realize improving cooling kettle's cooling efficiency's purpose, second clamp cover and third clamp cover can play the effect that further improves cooling efficiency, set up two first spiral stirring area and the second spiral stirring area that revolve to opposite respectively, can play the effect that improves stirring efficiency, set up temperature sensor on (mixing) shaft and puddler, play the effect that improves the temperature measurement accuracy.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second", "element i", "element ii" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features indicated. Thus, features defined as "first", "second", "element i", "element ii" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A horizontal cooling kettle for cathode materials, which comprises a stirring shaft (1) and a kettle body (2) arranged transversely, the open end of the kettle body (2) is connected with an end cover (3) through a flange, the stirring shaft (1) is arranged in the kettle body (2) through the end cover (3), a driving mechanism is arranged on the shaft section of the stirring shaft (1) positioned outside the kettle body (2), it is characterized in that a first jacket (4) is sleeved on the kettle body (2), a first water inlet (5) is arranged at the bottom of one end of the first jacket (4), a first water outlet (6) is arranged at the top of the other end of the first jacket (4), a plurality of flow deflectors (7) are arranged between the first water inlet (5) and the first water outlet (6), the flow deflectors (7) are fixedly arranged on the outer wall of the kettle body (2), and the flow deflectors (7) are spirally arranged on the kettle body (2).

2. The horizontal cooling kettle for negative electrode materials as claimed in claim 1, wherein the outer diameter of the flow deflector (7) is smaller than the inner diameter of the first jacket (4).

3. The horizontal cooling kettle for the negative electrode material as claimed in claim 2, wherein a second jacket (8) is arranged on the end cover (3), a second water inlet (9) is arranged at the bottom of the second jacket (8), a second water outlet (10) is arranged at the top of the second jacket (8), and the second water inlet (9) is communicated with the second water outlet (10) through a cavity between the second jacket (8) and the end cover (3).

4. The horizontal cooling kettle for the cathode material as claimed in claim 2, wherein a third jacket (11) is arranged at the closed end of one side of the kettle body (2), a third water inlet (12) is arranged at the bottom of the third jacket (11), a third water outlet (13) is arranged at the top of the third jacket (11), and the third water inlet (12) is communicated with the third water outlet (13) through a cavity between the third jacket (11) and the closed end of the kettle body (2).

5. The horizontal cooling kettle for the negative electrode material according to any one of claims 1 to 4, further comprising two first spiral stirring belts (14), wherein the stirring shaft (1) is provided with a plurality of stirring rods (15), the stirring rods (15) are symmetrically arranged on the stirring shaft (1), and the two first spiral stirring belts (14) are respectively and fixedly arranged at two ends of the stirring rods (15).

6. The horizontal cooling kettle for negative electrode materials as claimed in claim 5, further comprising two second helical stirring belts (16) with opposite rotation direction to the first helical stirring belt (14), wherein the outer diameter of the second helical stirring belts (16) is smaller than the inner diameter of the first helical stirring belt (14), the second helical stirring belts (16) are both fixed on the stirring rod (15), and the two second helical stirring belts (16) are symmetrically arranged on the stirring rod (15).

7. The horizontal cooling kettle for the negative electrode material as claimed in claim 5, further comprising a temperature measuring slip ring (17) and a plurality of temperature sensors (18), wherein the temperature measuring slip ring (17) is sleeved on a shaft section of the stirring shaft (1) located outside the kettle body (2), the temperature sensors (18) are fixedly arranged on the stirring shaft (1) located in the inner cavity of the kettle body (2), and the temperature sensors (18) are electrically connected with the temperature measuring slip ring (17).

8. The horizontal cooling kettle for negative electrode materials as claimed in claim 7, wherein at least one temperature sensor (18) is fixed on the stirring rod (15).

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