Lithium battery material calcining roller kiln

Abstract

The utility model discloses a lithium battery material calcining roller kiln, and relates to the technical field of lithium battery processing equipment. The kiln comprises a kiln body, a conveyor is installed in the kiln body, and supporting plates are fixedly connected to the front side and the rear side of the conveyor. A cooling assembly is arranged on one side of the kiln body and comprises exhaust pipes, the exhaust pipes are arranged at the top and the bottom of the conveyor respectively, one side of each exhaust pipe is communicated with a spray head, and the rear end of each exhaust pipe is communicated with a fixing box. According to the utility model, through the arrangement of the cooling assembly, when materials are conveyed out of the kiln body after being fired, the materials are simultaneously blown through the two groups of exhaust pipes arranged at the top and the bottom of the conveyor, so that the uniformity of blowing is improved, and the materials are kept at the same temperature in the cooling process; and the angle of the exhaust pipe can be adjusted, the blowing range is increased, and the cooling effect on the materials is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery processing equipment, in particular to a roller kiln for calcining lithium battery materials. Background Art

[0002] The roller kiln is a roasting equipment that uses the rotation of sticks to transport products and achieve continuous production. Since it does not use a kiln car, compared with the traditional tunnel kiln, it reduces the heat loss caused by the kiln car taking away some of the heat, improves the heat utilization rate, and because the top and bottom of the sticks can be heated, the temperature in the kiln is uniform, shortening the product firing cycle. It is a highly efficient and energy-saving roasting equipment and is widely used in the construction, ceramics, battery materials and other industries. The cooling mode of the cooling section of the roller kiln for sintering lithium-ion battery materials is divided into air cooling and water cooling.

[0003] During the processing of current lithium-ion battery material sintering roller kilns, most of them use air cooling to dissipate heat. Blowing air downward from the top of the material will lead to uneven heat dissipation between the top and bottom of the material, making the temperature at the bottom of the material higher than that at the top. When the temperature difference is large, it will affect the molding effect of the material. Therefore, we provide lithium battery material calcining roller kiln to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a roller kiln for calcining lithium battery materials. Through the cooperation of a cooling component and a driving component, the problem of uneven heat dissipation when cooling materials in the roller kiln for sintering lithium ion battery materials in the prior art is solved.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a roller kiln for calcining lithium battery materials, comprising a kiln body, a conveyor installed inside the kiln body, and support plates fixedly connected to the front and rear sides of the conveyor;

[0007] A cooling assembly is provided on one side of the kiln body, and the cooling assembly includes an exhaust pipe, which is respectively provided at the top and bottom of the conveyor. One side of the exhaust pipe is connected to a nozzle, the rear end of the exhaust pipe is connected to a fixing box, the rear side of the fixing box is connected to an air supply pipe, and the other end of the air supply pipe is connected to a booster air pump;

[0008] A driving assembly is provided on the front side of the support plate. The driving assembly includes a multi-stage hydraulic rod. The multi-stage hydraulic rod is fixed to the front side of the support plate. The output end of the multi-stage hydraulic rod is fixedly connected to the moving plate.

[0009] The utility model is further configured such that a support sleeve is movably connected to the surface of the exhaust pipe, and one side of the support sleeve is fixedly connected to the support plate.

[0010] The utility model is further configured such that the driving assembly further includes a tooth plate, which is respectively fixed to the top and bottom of the movable plate, and opposite sides of the tooth plate are meshed with gears.

[0011] The utility model is further configured such that the front side of the fixing box is fixedly connected to the supporting sleeve, and the front end of the exhaust pipe is fixedly connected to the gear.

[0012] The present invention is further configured such that the air inlet of the booster air pump is connected to a cooling shell, and a refrigerator is provided through the top of the cooling shell.

[0013] The present invention is further configured such that a metal filter is provided on one side of the refrigerator, and the top and bottom of the metal filter are fixedly connected to the inner wall of the cooling shell.

[0014] The utility model is further configured such that a bracket is fixedly connected to the bottom of the conveyor, an electric push rod is fixedly connected to the top of the bracket, and a baffle is fixedly connected to the output end of the electric push rod.

[0015] The utility model has the following beneficial effects:

[0016] The utility model adopts the setting of the cooling component, and when the material is transported out of the kiln body after the firing is completed, the two sets of exhaust pipes arranged at the top and bottom of the conveyor can simultaneously blow air to the material, thereby increasing the uniformity of the blowing and keeping the temperature of the material at the same time during the cooling process. The setting of the drive component can adjust the angle of the exhaust pipe, increase the blowing range, and further improve the cooling effect on the material.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0019] Figure 1 This is a structural stereogram of a roller kiln for calcining lithium battery materials;

[0020] Figure 2 A side partial cross-sectional view of a conveyor in a roller kiln for calcining lithium battery materials;

[0021] Figure 3 This is a partial cross-sectional view of the support plate, support sleeve, and fixing box in a roller kiln for calcining lithium battery materials;

[0022] Figure 4 Roller kiln for calcining lithium battery materials Figure 3 A magnified view of middle A;

[0023] Figure 5 A side cross-sectional view of the cooling shell in a roller kiln for calcining lithium battery materials.

[0024] In the attached figure: 1. kiln body; 2. conveyor; 3. support plate; 4. exhaust duct; 5. nozzle; 6. fixing box; 7. air duct; 8. booster air pump; 9. multi-stage hydraulic rod; 10. movable plate; 11. support sleeve; 12. gear plate; 13. gear; 14. cooling shell; 15. refrigerator; 16. metal filter; 17. bracket; 18. electric push rod; 19. baffle. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Specific embodiment 1

[0027] See also Figure 1-5 The utility model is a roller kiln for calcining lithium battery materials, comprising a kiln body 1, a conveyor 2 installed inside the kiln body 1, and support plates 3 are fixedly connected to the front and rear sides of the conveyor 2; a cooling assembly is provided on one side of the kiln body 1, and the cooling assembly includes an exhaust pipe 4, which is respectively arranged at the top and bottom of the conveyor 2, one side of the exhaust pipe 4 is connected to a nozzle 5, the rear end of the exhaust pipe 4 is connected to a fixed box 6, the rear side of the fixed box 6 is connected to an air supply pipe 7, and the other end of the air supply pipe 7 is connected to a booster air pump 8; a driving assembly is provided on the front side of the support plate 3, and the driving assembly includes a multi-stage hydraulic rod 9, which is fixed to the front side of the support plate 3, and the output end of the multi-stage hydraulic rod 9 is fixedly connected to a movable plate 10.

[0028] Specifically: there are two exhaust pipes 4, which are respectively arranged at the top and bottom of the conveyor 2. There are ten nozzles 5, which are divided into two groups and are evenly connected to the surface of the exhaust pipe 4, which can increase the blowing range. The booster air pump 8 can draw in external air and inject it into the exhaust pipe 4 after pressurization. The wind is blown toward the material through the exhaust pipe 4 to achieve the effect of air cooling. The multi-stage hydraulic rod 9 is used to drive the movable plate 10 to move, and the position of the two sets of tooth plates 12 can be adjusted. Specific embodiment 2

[0030] See also Figure 1-5On the basis of the specific embodiment 1, a support sleeve 11 is movably connected to the surface of the exhaust pipe 4, and one side of the support sleeve 11 is fixedly connected to the support plate 3. The driving assembly also includes a tooth plate 12, which is respectively fixed to the top and bottom of the movable plate 10. The opposite sides of the tooth plate 12 are engaged with a gear 13. The front side of the fixed box 6 is fixedly connected to the support sleeve 11, and the front end of the exhaust pipe 4 is fixedly connected to the gear 13. The air inlet of the booster air pump 8 is connected to the cooling shell 14, and a refrigerator 15 is provided on the top of the cooling shell 14. A metal filter screen 16 is provided on one side of the refrigerator 15. The top and bottom of the metal filter screen 16 are fixedly connected to the inner wall of the cooling shell 14. The bottom of the conveyor 2 is fixedly connected to a bracket 17, and the top of the bracket 17 is fixedly connected to an electric push rod 18. The output end of the electric push rod 18 is fixedly connected to a baffle 19.

[0031] Specifically: gears 13 are engaged on opposite sides of the two sets of tooth plates 12, which can drive the two sets of gears 13 to rotate relative to and in the opposite direction when the two sets of tooth plates 12 move. The refrigerator 15 utilizes the four main processes of refrigerant in a closed cycle: compression, condensation, expansion and evaporation. The liquid refrigerant is decompressed through an expansion valve or a throttle valve and partially evaporates into a low-pressure and low-temperature gas, at which time it absorbs the surrounding heat to achieve a cooling effect. The refrigerator 15 is located inside the cooling shell 14 and is equipped with temperature-conducting fins, which can cool the air inside the cooling shell 14. The metal filter 16 is used to filter the incoming air. The electric push rod 18 can drive the baffle 19 to move up and down, which can block the material on the top of the conveyor 2. The surface of the exhaust pipe 4 is movably connected to the inner wall of the fixed box 6 through a bearing.

[0032] The working principle of the utility model is as follows: after the calcination of the lithium battery material is completed, the lithium battery material is transported out of the kiln body 1 through the conveyor 2. When the material is transported to the bottom of the exhaust pipe 4, the booster air pump 8 is started by the external controller. The booster air pump 8 draws in external air, injects it into the air delivery pipe 7 after pressurization, and injects it into the exhaust pipe 4 through the fixing box 6. Finally, the air flow is blown to the material through the nozzle 5 to play the role of air cooling. Two sets of exhaust pipes 4 are respectively arranged at the top and bottom of the conveyor 2, which can blow air to the top and bottom of the material at the same time, increase the uniformity of the blowing, and keep the material at the same temperature during the cooling process.

[0033] At the same time, the multi-stage hydraulic rod 9 is started, and the multi-stage hydraulic rod 9 cooperates with the movable plate 10 to drive the tooth plate 12 to move, and the tooth plate 12 cooperates with the gear 13 to drive the exhaust pipe 4 to rotate, and the exhaust pipe 4 drives the nozzle 5 to rotate, thereby increasing the blowing range and further improving the cooling effect on the material.

[0034] The standard parts used in the present invention can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The control method is automatically controlled by a control unit. The control circuit of the control unit can be implemented by simple programming by technicians in this field, which is common knowledge in this field. Therefore, the control method and circuit connection are no longer explained in detail in the present invention.

[0035] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to only the specific implementation methods described. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can better understand and utilize the present invention.

Claims

1. A roller hearth kiln for calcining lithium battery materials, comprising a kiln body (1), characterized in that: A conveyor (2) is installed inside the kiln body (1), and support plates (3) are fixedly connected to the front and rear sides of the conveyor (2); A cooling assembly is provided on one side of the kiln body (1), and the cooling assembly includes an exhaust pipe (4). The exhaust pipe (4) is respectively provided at the top and bottom of the conveyor (2). One side of the exhaust pipe (4) is connected to a nozzle (5). The rear end of the exhaust pipe (4) is connected to a fixing box (6). The rear side of the fixing box (6) is connected to an air supply pipe (7). The other end of the air supply pipe (7) is connected to a booster air pump (8). A driving assembly is provided on the front side of the support plate (3), and the driving assembly includes a multi-stage hydraulic rod (9). The multi-stage hydraulic rod (9) is fixed to the front side of the support plate (3), and the output end of the multi-stage hydraulic rod (9) is fixedly connected to a movable plate (10).

2. The roller hearth kiln for calcining lithium battery materials according to claim 1, characterized in that: A support sleeve (11) is movably connected to the surface of the exhaust pipe (4), and one side of the support sleeve (11) is fixedly connected to the support plate (3).

3. The roller hearth kiln for calcining lithium battery materials according to claim 1, characterized in that: The driving assembly further comprises a tooth plate (12), wherein the tooth plate (12) is respectively fixed to the top and the bottom of the moving plate (10), and opposite sides of the tooth plate (12) are meshed with gears (13).

4. The roller hearth kiln for calcining lithium battery materials according to claim 3, characterized in that: The front side of the fixing box (6) is fixedly connected to the support sleeve (11), and the front end of the exhaust pipe (4) is fixedly connected to the gear (13).

5. The roller hearth kiln for calcining lithium battery materials according to claim 1, characterized in that: The air inlet of the booster air pump (8) is connected to a cooling shell (14), and a refrigerator (15) is provided through the top of the cooling shell (14).

6. The roller hearth kiln for calcining lithium battery materials according to claim 5, characterized in that: A metal filter screen (16) is provided on one side of the refrigerator (15), and the top and bottom of the metal filter screen (16) are fixedly connected to the inner wall of the cooling shell (14).

7. The roller hearth kiln for calcining lithium battery materials according to claim 1, characterized in that: The bottom of the conveyor (2) is fixedly connected to a bracket (17), the top of the bracket (17) is fixedly connected to an electric push rod (18), and the output end of the electric push rod (18) is fixedly connected to a baffle (19).

Images