Lithium manganate positive electrode material sintering furnace

Abstract

The utility model relates to the technical field of sintering furnaces, in particular to a lithium manganate anode material sintering furnace which comprises a sintering furnace body, a cooling assembly is arranged on the sintering furnace body and comprises a water pump arranged on one side of the sintering furnace body, a suction pipe is fixedly installed at the water inlet end of the water pump, and a reducer pipe is fixedly installed at the water outlet end of the water pump. A spiral heat exchange pipe is fixedly installed at the tail end of the reducer pipe, a water outlet pipe penetrating out of the sintering furnace body is fixedly installed at the bottom end of the spiral heat exchange pipe, an exhaust pipe is fixedly installed on the reducer pipe, an electromagnetic valve is fixedly installed on the exhaust pipe, a bent pipe is fixedly installed at the top end of the exhaust pipe, and a discharge hopper is fixedly installed at the bottom of the sintering furnace body. A discharging pipe is fixedly installed at the bottom end of the discharging hopper, a discharging valve is fixedly installed on the discharging pipe, and a plurality of electric heating rods are fixedly installed on the inner wall of the sintering furnace body. The device facilitates heating and heat exchange type cooling operation, improves the heat energy utilization rate and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering furnaces, and more specifically, to a sintering furnace for lithium manganese oxide cathode materials. Background Technique

[0002] With the increasing global attention to clean energy and sustainable energy technologies, lithium-ion batteries, as important energy storage devices for electronic products such as electric vehicles and smartphones, have shown a rapid growth trend in market demand. As an important representative of lithium-ion battery cathode materials, lithium manganese oxide has received extensive attention due to its high energy density, low cost, and good safety performance. In the production process of lithium manganese oxide cathode materials, the sintering process is a crucial step. When performing the sintering operation, it is usually carried out in a corresponding sintering furnace. As a key device for realizing this process, the performance of the sintering furnace directly affects the physical and chemical properties of the lithium manganese oxide cathode materials, and thus affects the overall performance of the lithium-ion battery.

[0003] After the sintering operation of the sintering furnace on the market, it is usually necessary to perform a cooling operation. This cooling operation generally involves directly opening the exhaust pipe on the sintering furnace to allow heat to be discharged outward to complete the heat dissipation operation. Using the direct outward discharge of heat for heat dissipation will cause a large amount of heat to be directly wasted, which is not conducive to improving the utilization rate of thermal energy, and the time required for self-cooling is relatively long, and the effect of rapid cooling cannot be achieved, which brings inconvenience to users. In view of this, we have proposed a sintering furnace for lithium manganese oxide cathode materials. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a sintering furnace for lithium manganese oxide cathode materials to solve the defects mentioned in the above background technique.

[0005] To achieve the above purpose, the present utility model provides the following technical solution:

[0006] A sintering furnace for lithium manganese oxide cathode materials includes a sintering furnace main body, and a cooling component is arranged on the sintering furnace main body. The cooling component includes a water pump arranged on one side of the sintering furnace main body. A suction pipe is fixedly installed at the water inlet end of the water pump, and a variable-diameter pipe is fixedly installed at the water outlet end of the water pump. A spiral heat exchange pipe is fixedly installed at the end of the variable-diameter pipe. The spiral heat exchange pipe is located inside the sintering furnace main body. A water outlet pipe passing through the sintering furnace main body is fixedly installed at the bottom end of the spiral heat exchange pipe. An exhaust pipe arranged vertically upward is fixedly installed on the variable-diameter pipe. An electromagnetic valve is fixedly installed on the exhaust pipe. A bent pipe is fixedly installed at the top end of the exhaust pipe, and the end pipe orifice of the bent pipe faces downward.

[0007] Preferably, a discharge hopper is fixedly installed at the bottom of the sintering furnace main body, a discharge pipe is fixedly installed at the bottom end of the discharge hopper, and a discharge valve is fixedly installed on the discharge pipe.

[0008] Preferably, a plurality of support legs arranged at equal intervals in a ring shape are fixedly installed at the bottom of the sintering furnace body, and the support legs are used for supporting operations.

[0009] Preferably, a top cover is fixedly installed on the top of the sintering furnace body, a temperature sensor is fixedly installed on the top cover, and a control unit is arranged on one side of the sintering furnace body.

[0010] Preferably, a feed hopper is fixedly installed at the center position of the top surface of the top cover, and a feed pipe is fixedly installed at the top end of the feed hopper.

[0011] Preferably, a butterfly valve is fixedly installed on the feed pipe, and the butterfly valve is used for controlling opening and closing operations.

[0012] Preferably, a plurality of electric heating rods arranged at equal intervals in a ring shape are fixedly installed on the inner wall of the sintering furnace body, and the electric heating rods are used for heating operations.

[0013] Preferably, a mesh protection cylinder is arranged inside the sintering furnace body, a flared cylinder is fixedly installed between the mesh protection cylinder and the inner wall of the top of the sintering furnace body, and the spiral heat exchange tube is wound around the outside of the mesh protection cylinder.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Through the arranged cooling component, when in use, the water pump can work to deliver water into the spiral heat exchange tube to exchange heat with the heat in the sintering furnace body, achieving the cooling effect. In addition, through the arranged exhaust pipe, during the normal heating process, the solenoid valve is opened, and the hot gas in the spiral heat exchange tube can be discharged outwards along the exhaust pipe, avoiding the situation that the spiral heat exchange tube is thermally expanded and cracked due to heat, achieving the effects of rapid cooling and improved thermal energy utilization rate.

[0016] 2. Through the arranged electric heating rods, heating operations can be carried out. Through the arranged mesh protection cylinder and flared cylinder, the electric heating rods and the spiral heat exchange tube can be protected, avoiding direct impact of materials on the electric heating rods or the spiral heat exchange tube and causing damage. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the sectional view of the sintering furnace body of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the cooling component of the present utility model;

[0020] Figure 4 This is the system module block diagram of the present utility model.

[0021] The meanings of the various labels in the figure are as follows:

[0022] 1. Sintering furnace main body; 10. Discharge hopper; 11. Discharge pipe; 12. Discharge valve; 13. Support leg; 14. Top cover; 15. Temperature sensor; 16. Control unit; 17. Feed hopper; 18. Feed pipe; 181. Butterfly valve;

[0023] 2. Electric heating rod;

[0024] 3. Mesh protection cylinder; 30. Flared cylinder;

[0025] 4. Cooling component; 40. Water pump; 41. Suction pipe; 42. Reducing pipe; 43. Exhaust pipe; 431. Solenoid valve; 44. Bent pipe; 45. Spiral heat exchange pipe; 46. Outlet pipe. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a sintering furnace for lithium manganate cathode materials, including a sintering furnace main body 1, a cooling component 4 is arranged on the sintering furnace main body 1, the cooling component 4 includes a water pump 40 arranged on one side of the sintering furnace main body 1, a suction pipe 41 is fixedly installed at the water inlet end of the water pump 40, a reducing pipe 42 is fixedly installed at the water outlet end of the water pump 40, a spiral heat exchange pipe 45 is fixedly installed at the end of the reducing pipe 42, the spiral heat exchange pipe 45 is located inside the sintering furnace main body 1, and an outlet pipe 46 passing through the sintering furnace main body 1 is fixedly installed at the bottom end of the spiral heat exchange pipe 45, which is convenient for using the water pump 40 to convey water into the spiral heat exchange pipe 45 to realize heat exchange operation with the heat in the sintering furnace main body 1 and achieve the cooling effect;

[0028] Specifically, a vertically upward exhaust pipe 43 is fixedly installed on the reducing pipe 42, a solenoid valve 431 is fixedly installed on the exhaust pipe 43, a bent pipe 44 is fixedly installed at the top end of the exhaust pipe 43, and the end pipe orifice of the bent pipe 44 faces downward, so that during the heating process, the solenoid valve 431 is opened, and the hot gas in the spiral heat exchange pipe 45 can be discharged outward along the bent pipe 44 to avoid the situation that the spiral heat exchange pipe 45 is thermally expanded and cracked due to heat.

[0029] In this embodiment, a discharge hopper 10 is fixedly installed at the bottom of the sintering furnace body 1. A discharge pipe 11 is fixedly installed at the bottom end of the discharge hopper 10, and a discharge valve 12 is fixedly installed on the discharge pipe 11, which facilitates opening the discharge valve 12 for discharging operations.

[0030] Specifically, a plurality of support legs 13 arranged at equal intervals in a ring are fixedly installed at the bottom of the sintering furnace body 1, and the support legs 13 are used for supporting operations.

[0031] Furthermore, a feed hopper 17 is fixedly installed at the center position of the top surface of the top cover 14. A feed pipe 18 is fixedly installed at the top end of the feed hopper 17, and a butterfly valve 181 is fixedly installed on the feed pipe 18. The butterfly valve 181 is used to control the opening and closing operations.

[0032] In addition, a plurality of electric heating rods 2 arranged at equal intervals in a ring are fixedly installed on the inner wall of the sintering furnace body 1, and the electric heating rods 2 are used for heating operations.

[0033] It should be noted that a mesh protection cylinder 3 is arranged inside the sintering furnace body 1. The mesh protection cylinder 3 is a mesh-shaped cylindrical structure. An expansion cylinder 30 is fixedly installed between the mesh protection cylinder 3 and the top inner wall of the sintering furnace body 1. The spiral heat exchange tube 45 is wound around the outside of the mesh protection cylinder 3, realizing the protection operation of the spiral heat exchange tube 45 and the electric heating rods 2 by using the mesh protection cylinder 3 to prevent materials from directly falling on the spiral heat exchange tube 45 and the electric heating rods 2 and causing damage.

[0034] It should be noted that a top cover 14 is fixedly installed at the top of the sintering furnace body 1. A temperature sensor 15 is fixedly installed on the top cover 14. A control unit 16 is arranged on one side of the sintering furnace body 1. The control unit 16 is used to control the electric heating rods 2 and the water pump 40 to work. The temperature sensor 15 is used to detect the temperature inside the sintering furnace body 1. The electric heating rods 2 can heat or stop heating the inside of the sintering furnace body 1 according to the instructions of the control unit 16; the water pump 40 can convey water or stop conveying water inside the spiral heat exchange tube 45 according to the instructions of the control unit 16. The control unit 16 is used to receive the temperature data fed back by the temperature sensor 15 and adjust the working state of the electric heating rods 2 or the water pump 40 according to the set temperature range to achieve the effect of controlling the temperature, and the specific temperature control can adopt gradient temperature control, and each time of heating or cooling adopts an increasing or decreasing corresponding temperature.

[0035] Finally, it should be noted that components such as the temperature sensor 15, control unit 16, electric heating rod 2, and water pump 40 involved in the present utility model are all general standard components or components known to those skilled in the art. Their structures and principles can all be learned by those skilled in the art through technical manuals or obtained through conventional experimental methods. At the idle part of the present device, all the above electrical components, which refer to power elements, electrical components, and the adapted controllers and power supplies, are connected through wires. The specific connection means should refer to the working principle of the present utility model. The electrical components are electrically connected in accordance with the sequence of their respective working orders. All their detailed connection means are well-known technologies in the art.

[0036] When the lithium manganese oxide cathode material sintering furnace of the present utility model is in use, as the raw materials are put into the sintering furnace main body 1, the electric heating rod 2 is connected to an external power source and made to work. The electric heating rod 2 works and starts to generate heat, thus realizing the heating operation. When cooling down, the suction pipe 41 is connected to an external water source delivery pipeline, the water pump 40 is connected to an external power source and made to work. The water pump 40 works to realize the conveyance of water into the spiral heat exchange tube 45 for heat exchange with the heat in the sintering furnace main body 1. The hot water after heat exchange is discharged outward along the water outlet pipe 46.

[0037] The above has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A lithium manganate positive electrode material sintering furnace, comprising a sintering furnace body (1), characterized in that: The sintering furnace body (1) is provided with a cooling component (4), the cooling component (4) comprising a water pump (40) arranged on one side of the sintering furnace body (1), a suction pipe (41) fixedly mounted on the water inlet end of the water pump (40), a reducing pipe (42) fixedly mounted on the water outlet end of the water pump (40), a spiral heat exchange tube (45) fixedly mounted on the end of the reducing pipe (42), the spiral heat exchange tube (45) being located inside the sintering furnace body (1), a water outlet pipe (46) passing through the sintering furnace body (1) fixedly mounted on the bottom end of the spiral heat exchange tube (45), an exhaust pipe (43) arranged vertically upwards fixedly mounted on the reducing pipe (42), an electromagnetic valve (431) fixedly mounted on the exhaust pipe (43), a bent pipe (44) fixedly mounted on the top end of the exhaust pipe (43), the end pipe opening of the bent pipe (44) facing downwards.

2. The lithium manganate positive electrode material sintering furnace according to claim 1, characterized in that: A discharge hopper (10) is fixedly mounted at the bottom of the sintering furnace body (1), a discharge pipe (11) is fixedly mounted at the bottom end of the discharge hopper (10), and a discharge valve (12) is fixedly mounted on the discharge pipe (11).

3. The lithium manganate positive electrode material sintering furnace according to claim 1, characterized in that: A plurality of support legs (13) arranged in a ring shape and at equal intervals are fixedly mounted on the bottom of the sintering furnace body (1), and the support legs (13) are used for supporting operations.

4. The lithium manganate positive electrode material sintering furnace according to claim 1, characterized in that: A top cover (14) is fixedly mounted on the top of the sintering furnace body (1), a temperature sensor (15) is fixedly mounted on the top cover (14), and a control unit (16) is arranged on one side of the sintering furnace body (1).

5. The lithium manganate positive electrode material sintering furnace according to claim 4, characterized in that: A feed hopper (17) is fixedly mounted at the center of the top surface of the top cover (14), and a feed pipe (18) is fixedly mounted at the top end of the feed hopper (17).

6. The lithium manganate positive electrode material sintering furnace according to claim 5, characterized in that: A butterfly valve (181) is fixedly mounted on the feed pipe (18), and the butterfly valve (181) is used to control the opening and closing operation.

7. The lithium manganate positive electrode material sintering furnace according to claim 1, characterized in that: A plurality of electric heating rods (2) arranged in a ring shape and at equal intervals are fixedly mounted on the inner wall of the sintering furnace body (1), and the electric heating rods (2) are used for heating operation.

8. The lithium manganate positive electrode material sintering furnace according to claim 7, characterized in that: A mesh protection tube (3) is arranged inside the sintering furnace body (1), a flaring tube (30) is fixedly installed between the mesh protection tube (3) and the top inner wall of the sintering furnace body (1), and the spiral heat exchange tube (45) is wound around the outside of the mesh protection tube (3).

Images