Material stirring roller cooling system

Abstract

The utility model relates to a material stirring roller cooling system which comprises a cooling outer cylinder, a cooling pipeline, an atomizing nozzle and a water storage tank, cooling water is stored in the water storage tank, the atomizing nozzle is arranged on the cooling outer cylinder, the cooling pipeline is communicated with the cooling outer cylinder and the water storage tank, and the cooling water in the water storage tank enters the cooling pipeline and is sprayed out from the atomizing nozzle. According to the cooling device, cooling water is sprayed to the outer surface of the stirring roller, the cooling water is continuously and uniformly sprayed to the outer surface of the rotating material stirring roller through the atomizing nozzle, the cooling water slides down from the outer surface of the stirring roller and exchanges heat with the stirring roller, the stirring roller is cooled on the premise that the rotating speed of the stirring roller is not reduced, and the cooling effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of material stirring in lithium battery production, in particular to a material stirring roller cooling system. Background Art

[0002] With the rapid development of the electric vehicle industry, driving range and lithium battery life have become one of the key performance of electric vehicles that consumers are more concerned about. This has put forward higher requirements on the performance of lithium batteries and higher technical requirements on lithium battery production equipment. Lithium battery slurry mixing equipment is a key link in the preparation of lithium battery slurry. The uniformity of lithium battery slurry mixing is one of the key factors affecting the performance of lithium batteries, and the cooling of the mixing roller during the material mixing process is one of the main factors affecting the performance of lithium battery slurry. At present, cooling the mixing roller is to reduce the mixing speed, but it will lead to a decrease in the mixing efficiency, thus affecting subsequent production.

[0003] Therefore, establishing a material mixing roller cooling system is crucial to the overall working performance of the mixing equipment. Utility Model Content

[0004] In view of this, the utility model provides a material stirring roller cooling system, in which the cooling outer cylinder and the material stirring roller are concentrically sealed and integrally installed on the main machine frame. The atomizing nozzle in the cooling system sprays water to cool the outer surface of the rotating material stirring roller. The cooling water returns to the water storage tank after confluence, and is then sent to the high-pressure air cooler through a centrifugal pump for cooling. After being transported to the collecting plate through a pipeline, it is distributed to the atomizing nozzle to form a circulating cooling, and the cooling of the stirring roller is completed without reducing the rotation speed of the stirring roller.

[0005] The utility model provides a material stirring roller cooling system adopts the following technical solutions:

[0006] A material stirring roller cooling system comprises a cooling outer cylinder, a cooling pipe, an atomizing nozzle and a water storage tank, wherein the water storage tank stores cooling water, the atomizing nozzle is arranged on the cooling outer cylinder, the cooling pipe is in communication with the cooling outer cylinder and the water storage tank, and the cooling water in the water storage tank enters into the cooling pipe and is sprayed out from the atomizing nozzle to spray the outer surface of the stirring roller.

[0007] Optionally, a plurality of atomizing nozzles are arranged along the circumferential direction of the cooling outer cylinder.

[0008] Optionally, the conical water mist formed by the multiple atomizing nozzles completely covers the outer surface of the material stirring roller.

[0009] Optionally, it also includes a collecting plate arranged on the cooling pipeline, the collecting plate is in communication with the atomizing nozzle, and the collecting plate is used to adjust the cooling water flow of the atomizing nozzle on the cooling outer cylinder.

[0010] Optionally, a detection component is provided on the cooling pipeline, and the detection component is used to detect the flow rate, temperature and pressure of cooling water in the cooling pipeline.

[0011] Optionally, a cooler is also included, and the cooler is used to cool the cooling water.

[0012] Optionally, a pumping member is provided on the cooling pipe, and the pumping member is used to pump cooling water in the water tank into the cooling pipe.

[0013] Optionally, the cooling outer cylinder and the stirring roller are arranged coaxially and dynamically sealed.

[0014] Optionally, the bottom of the cooling outer cylinder is closed, an atomizing nozzle is provided at the bottom of the cooling outer cylinder, a water return pipe is provided at the bottom of the cooling outer cylinder, and the water return pipe is in communication with a water storage tank.

[0015] Optionally, the water tank has an inlet, an outlet, a return water port and a drain port, the drain port is in communication with a cooling pipe, the inlet is used to replenish the cooling water in the water tank, the drain port is used to discharge the cooling water in the water tank, and the return water port is in communication with a return water pipe.

[0016] To sum up, the utility model includes at least one of the following beneficial technical effects: cooling water is continuously and evenly sprayed onto the outer surface of the rotating material stirring roller through the atomizing nozzle, the cooling water slides down the outer surface of the stirring roller, exchanges heat with the stirring roller, and cools the stirring roller without reducing the rotation speed of the stirring roller, with good cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 It is a side view of an embodiment of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of an embodiment of the utility model;

[0020] Figure 4 It is a schematic structural diagram of the atomizing nozzle of the utility model embodiment when spraying water.

[0021] Explanation of the reference numerals: 1. Cooling outer cylinder; 2. Cooling pipe; 3. Atomizing nozzle; 4. Water storage tank; 41. Water filling port; 42. Drain port; 43. Water outlet; 5. Supply plate; 6. Pumping part; 7. Return pipe; 8. Flow meter; 9. Pressure gauge; 10. Pressure sensor; 11. Thermocouple; 12. Cooler; 13. Stirring roller. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-4 The utility model is described in further detail.

[0023] The utility model embodiment discloses a material stirring roller cooling system.

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A material stirring roller cooling system includes a cooling outer cylinder 1, a cooling pipe 2, an atomizing nozzle 3, a return pipe 7 and a water tank 4. Cooling water is stored in the water tank 4. The atomizing nozzle 3 is arranged on the cooling outer cylinder 1. The cooling pipe 2 is in circulation with the cooling outer cylinder 1 and the water tank 4. The return pipe 7 is in circulation with the cooling outer cylinder 1 and the water tank 4. The cooling water in the water tank 4 enters the cooling pipe 2 and is sprayed out from the atomizing nozzle 3 to spray the outer surface of the stirring roller 13. The cooling water is continuously and evenly sprayed to the outer surface of the rotating material stirring roller 13 through the atomizing nozzle 3. The cooling water slides down from the outer surface of the stirring roller 13 and exchanges heat with the stirring roller 13. Under the premise of not reducing the rotation speed of the stirring roller 13, the stirring roller 13 is cooled, and the cooling effect is good.

[0025] The water storage tank 4 has a water inlet 41, a water outlet 43, a water return port and a water outlet 42. The water outlet 42 is in communication with the cooling pipe 2. The water inlet 41 is used to replenish the cooling water in the water storage tank 4, the water outlet 42 is used to discharge the cooling water in the water storage tank 4, and the water return port is in communication with the water return pipe 7. A water tank level switch is provided on the water storage tank 4. The external water source directly injects the standby cooling water into the water storage tank 4 through the water inlet 41. When the water level rises to the specified water level, the water tank level switch opens and closes the water source of the water inlet 41, and the circulating cooling water filling of the water storage tank 4 is completed.

[0026] A pumping member 6 is provided between the water storage tank 4 and the cooling pipe 2, and the pumping member 6 is used to pump the cooling water in the water storage tank 4 into the cooling pipe 2. In this embodiment, the pumping member 6 is a centrifugal pump.

[0027] The cooling pipe 2 is provided with a detection component, which is used to detect the flow rate, temperature and pressure of the cooling water in the cooling pipe 2. Specifically, the detection component includes a flow meter 8, a pressure gauge 9, a pressure sensor 10 and a thermocouple 11. The flow meter 8 is used to detect the flow rate of the cooling water in the cooling pipe 2, the pressure gauge 9 and the pressure sensor 10 are used to detect the pressure of the cooling pipe 2, and the thermocouple 11 is used to detect the temperature of the cooling water in the cooling pipe 2.

[0028] The inner surface of the cooling outer cylinder 1 is in line with the outer surface of the stirring roller 13, and the cooling outer cylinder 1 and the stirring roller 13 are arranged in a concentric dynamic seal. The bottom of the cooling outer cylinder 1 is closed, and multiple groups of atomizing nozzles 3 are arranged on the inner wall of the cooling outer cylinder 1 along its circumferential direction, and each group of atomizing nozzles 3 is provided with at least one atomizing nozzle 3. The conical water mist formed by the multiple atomizing nozzles 3 completely covers the outer surface of the material stirring roller 13.

[0029] A return pipe 7 is provided at the bottom of the cooling outer cylinder 1, and the return pipe 7 is in communication with the water storage tank 4. An atomizing nozzle 3 is also provided at the bottom of the cooling outer cylinder 1. The cooling water slides down the outer surface of the stirring roller 13 and collects at the bottom of the cooling outer cylinder 1. It flows back to the water storage tank 4 through the return port at the bottom by gravity. In this embodiment, the diameter of the return pipe 7 is larger than that of the cooling water pipe, so as to achieve matching of the inlet and return water flow rates.

[0030] Specifically, the atomizing nozzles 3 are evenly distributed in the circumferential direction and the bottom of the cooling outer cylinder 1. There are 6 groups of atomizing nozzles 3 in the circumferential direction, and the conical water mist sprayed by the nozzles is 90°. There is 1 group of atomizing nozzles 3 at the bottom, and the conical water mist sprayed by the nozzles is 120°. The nozzle spray ports are vertically facing the outer surface of the stirring roller 13, and the formed conical water mist completely covers the outer circumferential surface and the bottom surface of the stirring roller 13.

[0031] It also includes a supply plate 5 arranged on the cooling pipe 2 , the supply plate 5 is in communication with the atomizing nozzle 3 , and the supply plate 5 is used to adjust the cooling water flow of the atomizing nozzle 3 on the cooling outer cylinder 1 .

[0032] The cooling device further comprises a cooler 12 for cooling the cooling water. Specifically, the cooler 12 is a high-pressure air cooler 12, and the pumping member 6 pumps the cooling water into the cooler 12 for cooling, and then the cooled cooling water is sprayed out from the atomizing nozzle 3 through the cooling pipe 2.

[0033] The cooling water first enters the collecting plate 5 at the bottom of the cooling outer cylinder 1, and the collecting plate 5 uniformly distributes the cooling water to the pipelines of multiple groups of atomizing nozzles 3, ensuring the consistency of the flow rate and pressure of the cooling water of the nozzles at each relative position, making the heat exchange more stable and uniform.

[0034] The cooling water drawn by the centrifugal pump from the water storage tank 4 is cooled by the high-pressure air cooler 12. The cooling water then passes through the pipeline, is detected by the thermocouple 11, the pressure sensor 10, the pressure gauge 9 and the flow meter 8, and then enters the collecting plate 5 to provide cooling water for the nozzle.

[0035] In this embodiment, a temperature detection sensor for detecting the temperature of cooling water is provided on the return pipe 7, and specifically, a thermocouple 11 is used to detect the temperature of cooling water. The thermocouple 11 provided on the return pipe 7 detects the temperature of cooling water and the thermocouple 11 provided on the cooling pipe 2 monitors the cooling water status at the water inlet end and the water return end of the water storage tank 4 in real time, and can also clearly calculate the heat flow of the system. The monitoring parameters realize dynamic control of the cooling capacity of cooling water by controlling the cooling capacity of the high-pressure air cooler 12 and the speed of the centrifugal pump. The above control method adopts the existing control method, such as PLC control, which is the existing technology and is not described here one by one.

[0036] The implementation principle of the utility model is as follows: when the equipment is started and operated, the centrifugal pump draws cooling water through the water outlet 43 of the water storage tank 4, enters the high-pressure air cooler 12 through the pipeline, completes the circulation cooling and is then output, and then passes through the real-time detection and data collection of the thermocouple 11, the pressure sensor 10, the pressure gauge 9 and the flow meter 8, respectively. The cooling water then enters the collecting plate 5 through the pipeline, and under the action of pressure, the collecting plate 5 provides cooling water of relatively equal flow and pressure to the multiple groups of atomizing nozzles 3 in the circumferential direction and the bottom group of atomizing nozzles 3. The conical water mist formed by the multiple groups of atomizing nozzles 3 is vertically sprayed onto the outer surface of the rotating material stirring roller 13. The water mist slides off the outer surface of the roller to complete the heat exchange and then gathers at the bottom of the cooling outer cylinder 1. The gathered cooling water quickly flows back into the water storage tank 4 through the large-diameter pipeline under the action of gravity to complete a circulation of the cooling water.

[0037] During the circulation of cooling water, the thermocouple 11, pressure sensor 10, pressure gauge 9 and flow meter 8 of the water inlet pipeline and the thermocouple 11 of the water return pipe 7 monitor the status of the cooling inlet and outlet water in real time. By monitoring the parameters, the speed of the cooling fan of the high-pressure air cooler 12 is controlled respectively to realize the adjustment and control of the cooling capacity of the high-pressure air cooler 12. At the same time, the speed of the centrifugal pump is controlled, and the cooling water flow and pressure are adjusted to realize the adjustment and control of the cooling capacity of the cooling water. The dynamic control of the cooling capacity of the cooling system is realized through control. The above-mentioned control method adopts the existing control method, such as PLC control, which is the existing technology and will not be elaborated here.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A material stirring roller cooling system, characterized in that: It includes a cooling outer cylinder, a cooling pipe, an atomizing nozzle and a water tank. The water tank stores cooling water. The atomizing nozzle is arranged on the cooling outer cylinder. The cooling pipe is in communication with the cooling outer cylinder and the water tank. The cooling water in the water tank enters into the cooling pipe and is sprayed out from the atomizing nozzle to spray the outer surface of the stirring roller.

2. The material stirring roller cooling system according to claim 1, characterized in that: A plurality of atomizing nozzles are arranged along the circumferential direction of the cooling outer cylinder.

3. The material stirring roller cooling system according to claim 2 is characterized in that: The conical water mist formed by the multiple atomizing nozzles completely covers the outer surface of the material stirring roller.

4. The material stirring roller cooling system according to claim 2, characterized in that: It also includes a collecting plate arranged on the cooling pipeline, the collecting plate is in communication with the atomizing nozzle, and the collecting plate is used to adjust the cooling water flow of the atomizing nozzle on the cooling outer cylinder.

5. The material stirring roller cooling system according to claim 1, characterized in that: The cooling pipeline is provided with a detection component, and the detection component is used to detect the flow rate, temperature and pressure of cooling water in the cooling pipeline.

6. The material stirring roller cooling system according to claim 1, characterized in that: Also included is a cooler, which is used to cool the cooling water.

7. The material stirring roller cooling system according to claim 1, characterized in that: The cooling pipeline is provided with a water pumping member, and the water pumping member is used to pump the cooling water in the water storage tank into the cooling pipeline.

8. The material stirring roller cooling system according to claim 3, characterized in that: The cooling outer cylinder and the stirring roller are coaxially and dynamically sealed.

9. The material stirring roller cooling system according to claim 3, characterized in that: The bottom of the cooling outer cylinder is closed, a water return pipe is arranged at the bottom of the cooling outer cylinder, the water return pipe is in communication with the water storage tank, and an atomizing nozzle is arranged at the bottom of the cooling outer cylinder.

10. The material stirring roller cooling system according to claim 9, characterized in that: The water tank has a water inlet, a water outlet, a water return outlet and a drain outlet. The drain outlet is in communication with the cooling pipe. The water inlet is used to replenish the cooling water in the water tank. The drain outlet is used to discharge the cooling water in the water tank. The water return outlet is in communication with the return water pipe.

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