Calcination temperature regulation and control device for cobalt-free manganese positive electrode material

Abstract

The utility model relates to the field of positive electrode material processing equipment, and discloses a cobalt-free manganese positive electrode material calcination temperature regulation and control device which comprises positive electrode material calcination equipment, a cooling box is arranged on the right side of the positive electrode material calcination equipment, and a cooling pipe is fixedly connected to the left side of the cooling box. A liquid pump is fixedly connected to the left side of the inner wall of the cooling box, a regulation and control device is arranged in the cooling box and comprises a regulation and control box, the regulation and control box is fixedly installed in the cooling box, heat conduction fins are fixedly connected to the outer wall of the regulation and control box, and a regulation and control mechanism further comprises a floating ball and a limiting ring. The cooling pipe and the heat conduction fins are arranged, so that the heat exchange efficiency of temperature is improved, the uniformity of the temperature is improved, meanwhile, the guide rod is driven by the floating ball to ascend, heating equipment is cut off when the temperature in the cooling box is too high, the product quality is ensured, and the transmission reliability of a mechanical structure is better.

Description

Technical Field

[0001] The utility model relates to the field of positive electrode material processing equipment, in particular to a calcination temperature control device for cobalt-free manganese positive electrode materials. Background Art

[0002] Cobalt-free manganese-based positive electrode refers to the use of cobalt-free materials to replace part of the cobalt element in traditional lithium manganese oxide positive electrode materials to reduce material costs and improve battery sustainability. Cobalt-free manganese-based positive electrode materials usually refer to materials such as LMO (lithium manganese oxide) or NMC (nickel manganese cobalt oxide) in lithium-ion batteries. These materials can provide relatively high energy density and cycle performance, and are widely used in electric vehicles, portable electronic devices and other fields.

[0003] In the prior art, general positive electrode material calcining equipment needs to be equipped with a temperature control module to regulate the temperature inside the calcining furnace during the high-temperature calcination process to ensure the quality of product production. However, when the existing temperature control module is controlled by a circuit device, there may be a problem of uneven temperature leading to inaccurate detection results, resulting in low temperature control accuracy, which reduces the quality of product production. When the electrical equipment fails, it is also difficult to ensure the quality of positive electrode material production. Therefore, a cobalt-free manganese-based positive electrode material calcination temperature control device is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a cobalt-free manganese-based positive electrode material calcination temperature control device, which aims to improve the problem in the prior art that "uneven temperature leads to inaccurate detection results and low temperature control accuracy".

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cobalt-free manganese-based positive electrode material calcination temperature control device, including a positive electrode material calcination device, a cooling box is arranged on the right side of the positive electrode material calcination device, a cooling pipe is fixedly connected to the left side of the cooling box, a liquid pump is fixedly connected to the left side of the inner wall of the cooling box, a control device is arranged inside the cooling box, the control device includes a control box, the control box is fixedly installed inside the cooling box, a heat-conducting fin is fixedly connected to the outer wall of the control box, the control mechanism also includes a float and a limit ring, the float is arranged inside the control box, the top of the float is fixedly connected to a guide rod, the guide rod is slidably installed on the inner wall of the limit ring, the limit ring is fixedly installed inside the control box, a touch point is arranged on the top of the inner wall of the control box, and a liquid adding mechanism is arranged on the right side of the cooling box.

[0006] As a further description of the above technical solution:

[0007] One end of the cooling tube away from the cooling box is located inside the positive electrode material calcining equipment, and the portion of the cooling tube located inside the positive electrode material calcining equipment is configured in a spiral shape.

[0008] As a further description of the above technical solution:

[0009] The control box is provided with heat expansion concentrate inside, and the float is hollow inside.

[0010] As a further description of the above technical solution:

[0011] The liquid adding mechanism comprises a water supply tank, a movable base is arranged at the bottom of the water supply tank, and a water adding pipe is fixedly connected to the top of the water supply tank.

[0012] As a further description of the above technical solution:

[0013] The water supply tank and the cooling tank are fixedly connected to each other on one side thereof, and a connecting pipe is arranged on the top of the connecting pipe.

[0014] As a further description of the above technical solution:

[0015] The number of the connecting pipes is set to two groups, and the two groups of connecting pipes are detachably installed through flange plates.

[0016] As a further description of the above technical solution:

[0017] A limiting block is slidably mounted on the top inner wall of the movable base, and the limiting block is elastically connected to the inner wall of the movable base via a spring.

[0018] As a further description of the above technical solution:

[0019] A handle is fixedly connected to the right side of the top of the mobile base, and a roller is fixedly connected to the bottom of the mobile base.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by arranging cooling pipes and heat-conducting fins, the heat exchange efficiency of the temperature is improved, the temperature uniformity is improved, and at the same time, the guide rod is driven to rise by the float, and the heating equipment is cut off when the temperature inside the cooling box is too high, so as to ensure the quality of the product and improve the transmission reliability of the mechanical structure.

[0022] 2. In the present invention, by providing a liquid adding mechanism, when the coolant level in the cooling box is insufficient, the coolant in the cooling box is supplemented to ensure the cooling effect, thereby ensuring the accuracy of temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0024] Figure 2 It is a three-dimensional exploded structural diagram of the positive electrode material calcining equipment and cooling tube in the utility model;

[0025] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the cooling box, the liquid pump and the regulating mechanism in the utility model;

[0026] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the control mechanism in the utility model;

[0027] Figure 5 It is an exploded schematic diagram of the three-dimensional structure of the movable base, the limit block and the spring in the utility model.

[0028] Legend:

[0029] 1. Positive electrode material calcining equipment; 2. Cooling box; 3. Cooling pipe; 4. Liquid pump; 5. Control box; 6. Heat transfer fins; 7. Float; 8. Guide rod; 9. Limit ring; 10. Touch point; 11. Water supply tank; 12. Mobile base; 13. Water supply pipe; 14. Connecting pipe; 15. Flange; 16. Valve; 17. Limit block; 18. Spring; 19. Handle; 20. Roller. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a cobalt-free manganese-based positive electrode material calcining temperature control device, including a positive electrode material calcining device 1, which gradually increases the temperature to make the temperature in the furnace rise evenly, thereby avoiding stress or deformation of the material due to sudden temperature changes. It is a prior art. A cooling box 2 for cooling the inside of the positive electrode material calcining device 1 is arranged on the right side of the positive electrode material calcining device 1, and a cooling pipe 3 for conveying coolant is fixedly connected to the left side of the cooling box 2. The end of the cooling pipe 3 away from the cooling box 2 is located inside the positive electrode material calcining device 1, and the part of the cooling pipe 3 located inside the positive electrode material calcining device 1 is arranged in a spiral shape to increase the contact time and contact area between the coolant and the inside of the positive electrode material calcining device 1 when the coolant runs inside the cooling pipe 3. A liquid pump 4 for providing power is fixedly connected to the left side of the inner wall of the cooling box 2, and a control device is arranged inside the cooling box 2.

[0032] Reference Figure 3 , Figure 4 The regulating device includes a regulating box 5, which is fixedly installed inside the cooling box 2. A heat-conducting fin 6 for conducting heat is fixedly connected to the outer wall of the regulating box 5 to improve the exchange efficiency of the heat inside the regulating box 5 and the heat inside the cooling box 2. The regulating mechanism also includes a float 7 and a limit ring 9. The float 7 is arranged inside the regulating box 5. A thermal expansion concentrate is arranged inside the regulating box 5. The thermal expansion concentrate can be set to mercury. The inside of the float 7 is hollow. The average density of the float 7 as a whole is less than the density of the thermal expansion concentrate. A guide rod 8 arranged in a vertical state is fixedly connected to the top of the float 7. The guide rod 8 is slidably installed on the inner wall of the limit ring 9. The limit ring 9 guides the displacement direction of the guide rod 8 so that the guide rod 8 performs a more precise linear motion. The limit ring 9 is fixedly installed inside the regulating box 5. A touch point 10 is arranged on the top of the inner wall of the regulating box 5. The touch point 10 is located directly above the guide rod 8. The top of the guide rod 8 is provided with an arc surface. A liquid adding mechanism is arranged on the right side of the cooling box 2.

[0033] Reference Figure 1 The liquid adding mechanism includes a water replenishing tank 11, a water pump is arranged inside the water replenishing tank 11, a movable base 12 for conveniently moving the water replenishing tank 11 is arranged at the bottom of the water replenishing tank 11, a water adding pipe 13 for replenishing cooling water into the water replenishing tank 11 is fixedly connected to the top of the water replenishing tank 11, a connecting pipe 14 is fixedly connected to the side where the water replenishing tank 11 and the cooling box 2 are close to each other, a valve 16 is arranged on the top of the connecting pipe 14, the number of connecting pipes 14 is set to two groups, the two groups of connecting pipes 14 are detachably installed through a flange 15, the water replenishing tank 11 and the cooling box 2 can be conveniently connected, and water can be replenished into the cooling box 2 by opening the valve 16.

[0034] Reference Figure 1 , Figure 5 A limit block 17 for limiting the water replenishment tank 11 is slidably installed on the top inner wall of the mobile base 12. The sliding direction of the limit block 17 is left and right, which limits the water replenishment tank 11 and improves the stability of the water replenishment tank 11 during operation. The limit block 17 is elastically connected to the inner wall of the mobile base 12 through a spring 18. The spring 18 is provided to apply an elastic force toward the right to the limit block 17. A handle 19 for conveniently pushing the mobile base 12 is fixedly connected to the top right side of the mobile base 12, and a roller 20 for conveniently moving the mobile base 12 is fixedly connected to the bottom of the mobile base 12.

[0035] Working principle: When in use, by starting the power supply of the liquid pump 4, the liquid pump 4 works to pump the cooling water inside the cooling box 2 into the cooling pipe 3, and then returns to the interior of the cooling box 2 after passing through the spiral section inside the positive electrode material calcining equipment 1. At the same time, the heat inside the positive electrode material calcining equipment 1 is brought to the interior of the cooling box 2 to avoid the internal temperature of the positive electrode material calcining equipment 1 being too high.

[0036] After the temperature of the water liquid inside the cooling box 2 rises, the heat is transferred to the thermal expansion and contraction liquid inside the regulating box 5 through the heat-conducting fins 6, so that the temperature of the thermal expansion and contraction liquid rises synchronously. The heated area of ​​the thermal expansion and contraction liquid increases, causing the liquid level inside the regulating box 5 to rise, and the float 7 is driven up by buoyancy, and the rise of the float 7 drives the guide rod 8 to rise. When the temperature inside the cooling box 2 reaches the safety threshold, the guide rod 8 rises to the top and squeezes the touch point 10, so that the heating equipment of the positive electrode material calcining equipment 1 stops working, so as to prevent the temperature from continuing to rise, resulting in reduced product quality.

[0037] When the cooling box 2 is used for a long time, the cooling water inside it will evaporate, resulting in a decrease in the cooling effect. At this time, the water supply tank 11 and the cooling box 2 are connected through the flange 15, and then the water pump inside the water supply tank 11 is started to replenish water to the cooling box 2 to ensure the cooling effect.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cobalt-free manganese-based positive electrode material calcination temperature control device, comprising a positive electrode material calcination device (1), characterized in that: A cooling box (2) is arranged on the right side of the positive electrode material calcining equipment (1), a cooling pipe (3) is fixedly connected to the left side of the cooling box (2), a liquid pump (4) is fixedly connected to the left side of the inner wall of the cooling box (2), a regulating device is arranged inside the cooling box (2), the regulating device comprises a regulating box (5), the regulating box (5) is fixedly installed inside the cooling box (2), a heat conducting fin (6) is fixedly connected to the outer wall of the regulating box (5), the regulating device also comprises a floating ball (7) and a limiting ring (9), the floating ball (7) is arranged inside the regulating box (5), a guide rod (8) is fixedly connected to the top of the floating ball (7), the guide rod (8) is slidably installed on the inner wall of the limiting ring (9), the limiting ring (9) is fixedly installed inside the regulating box (5), a touch point (10) is arranged on the top of the inner wall of the regulating box (5), and a liquid adding mechanism is arranged on the right side of the cooling box (2).

2. The device for controlling the calcination temperature of a cobalt-free manganese-based positive electrode material according to claim 1, characterized in that: One end of the cooling pipe (3) away from the cooling box (2) is located inside the positive electrode material calcining equipment (1), and the part of the cooling pipe (3) located inside the positive electrode material calcining equipment (1) is arranged in a spiral shape.

3. The device for controlling the calcination temperature of a cobalt-free manganese-based positive electrode material according to claim 1, characterized in that: The interior of the control box (5) is provided with a heat expansion concentrated liquid, and the interior of the float (7) is hollow.

4. The device for controlling the calcination temperature of a cobalt-free manganese-based positive electrode material according to claim 1, characterized in that: The liquid adding mechanism comprises a water replenishing tank (11), a movable base (12) is arranged at the bottom of the water replenishing tank (11), and a water adding pipe (13) is fixedly connected to the top of the water replenishing tank (11).

5. The device for controlling the calcination temperature of a cobalt-free manganese-based positive electrode material according to claim 4, characterized in that: The water replenishment tank (11) and the cooling tank (2) are both fixedly connected to one another on one side thereof that is close to each other, and a valve (16) is provided on the top of the connecting pipe (14).

6. The device for controlling the calcination temperature of a cobalt-free manganese-based positive electrode material according to claim 5, characterized in that: The number of the connecting pipes (14) is set to two groups, and the two groups of connecting pipes (14) are detachably mounted via flanges (15).

7. The device for controlling the calcination temperature of a cobalt-free manganese-based positive electrode material according to claim 4, characterized in that: A limit block (17) is slidably mounted on the top inner wall of the movable base (12), and the limit block (17) is elastically connected to the inner wall of the movable base (12) via a spring (18).

8. The device for controlling the calcination temperature of a cobalt-free manganese-based positive electrode material according to claim 4, characterized in that: A handle (19) is fixedly connected to the right side of the top of the mobile base (12), and a roller (20) is fixedly connected to the bottom of the mobile base (12).

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