Drying device for lithium iron phosphate positive electrode material production

Abstract

The utility model relates to the technical field of lithium iron phosphate positive electrode material drying, and discloses a drying device for lithium iron phosphate positive electrode material production, which comprises a bottom column, a bottom plate is fixedly mounted at the top of the bottom column, an electric heating net is arranged below the bottom plate, and a fan is arranged below the bottom plate; the feeding assembly is fixedly mounted in the bottom plate; wherein the feeding assembly comprises a movable part and an adjusting part; the drying assembly is fixedly mounted at the top of the bottom plate; wherein the drying assembly comprises a telescopic part and an elastic vibration part; the movable part comprises a rotating shaft, and a frame is arranged in the bottom plate. According to the lithium iron phosphate positive electrode material drying device, the drying assembly is arranged, the elastic vibration part is used for conducting dispersion treatment on the lithium iron phosphate positive electrode material placed in the feeding hopper, meanwhile, the internal environment of the box body is kept closed, and the effect that the lithium iron phosphate positive electrode material is fully dried through the drying device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying lithium iron phosphate positive electrode materials, in particular to a drying device for producing lithium iron phosphate positive electrode materials. Background Art

[0002] Lithium iron phosphate is a lithium-ion battery electrode material with the chemical formula LiFePO4 (LFP for short), which is mainly used in various lithium-ion batteries. Since Japan's NTT first revealed the olivine structure lithium battery positive electrode material AyMPO4 (A is an alkali metal, M is a combination of CoFe: LiFeCoPO4) in 1996, the research group of the University of Texas at Austin in the United States also reported the reversible migration and extraction of lithium in LiFePO4 in 1997.

[0003] At present, in the actual production application of the drying device for the production of lithium iron phosphate positive electrode materials, the dried lithium iron phosphate positive electrode materials are always manually discharged, which consumes manpower and time and has a certain impact on the drying efficiency of the drying device. At the same time, the lithium iron phosphate positive electrode material is in powder state. If it is not dispersed, it is easy to cause insufficient drying. Utility Model Content

[0004] The purpose of the utility model is to provide a drying device for producing lithium iron phosphate positive electrode materials, so as to achieve the purpose of solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a drying device for producing lithium iron phosphate positive electrode materials, comprising:

[0006] A bottom column, a bottom plate is fixedly mounted on the top of the bottom column, an electric heating network is arranged below the bottom plate, and a fan is arranged below the bottom plate;

[0007] A feeding assembly, the feeding assembly is fixedly mounted inside the bottom plate;

[0008] Wherein, the feeding assembly includes a movable part and an adjusting part;

[0009] A drying assembly, wherein the drying assembly is fixedly mounted on the top of the bottom plate;

[0010] Wherein, the drying component includes a telescopic part and a spring-vibration part.

[0011] Preferably, the movable part includes a rotating shaft, a frame is arranged inside the base plate, a hydraulic telescopic rod 1 is fixedly installed inside the frame, and a hinge block 1 is movably installed on the output end of the hydraulic telescopic rod 1 through a pin shaft.

[0012] Preferably, the rotating shaft is movably mounted on the bottom plate, both ends of the rotating shaft penetrate the bottom plate and extend to the inside of the bottom plate, and the rotating shaft is movably mounted on the frame, one end of the rotating shaft penetrates the frame.

[0013] Preferably, the adjustment part includes an articulated block 2, a hydraulic telescopic rod 2 is movably installed inside the articulated block 2 through a pin shaft, a fixing frame is fixedly installed at the bottom of the base plate, the articulated block 2 is fixedly installed at the bottom of the frame, and the hydraulic telescopic rod 2 is fixedly installed on the fixing frame.

[0014] Preferably, the telescopic portion includes a box body, a positioning column 1 is fixedly installed inside the box body, a spring 1 is arranged inside the box body, a positioning column 2 is arranged inside the box body, and a baffle is fixedly installed at the bottom of the positioning column 2.

[0015] Preferably, the box body is fixedly installed with the bottom plate, one end of the spring one is fixedly connected with the inner wall of the box body, the other end of the spring one is fixedly connected with the baffle plate, and the spring one is sleeved with the positioning column one and the positioning column two.

[0016] Preferably, the spring shock part includes a discharge hopper, a positioning column three is fixedly installed inside the discharge hopper, a spring two and a positioning column four are arranged inside the discharge hopper, a support plate is fixedly installed on the top of the positioning column four, a discharge hopper is fixedly installed on the right side of the bottom plate, and a slide groove is opened inside the bottom plate.

[0017] Preferably, pulleys are fixedly installed on both sides of the discharge hopper, the pulleys are adapted to the slide grooves, one end of the spring two is fixedly connected to the inner wall of the discharge hopper, the other end of the spring two is fixedly connected to the support plate, the spring two is sleeved with the positioning column three and the positioning column four, and the discharge hopper is fixedly installed with the hinge block one.

[0018] The utility model provides a drying device for producing lithium iron phosphate positive electrode materials. It has the following beneficial effects:

[0019] (1) The utility model provides a feeding assembly, utilizes a hydraulic telescopic rod 1 to be fixedly mounted on a discharge hopper to control its lateral movement, and a hydraulic telescopic rod 2 to control the movement of the hydraulic telescopic rod 1 in the vertical direction, thereby automating the discharge and discharging of the discharge hopper, thereby achieving the effect of increasing the discharge speed of the drying device.

[0020] (2) The utility model provides a drying component and utilizes the spring shock part to disperse the lithium iron phosphate positive electrode material placed in the discharge hopper, while maintaining the airtight environment inside the box, so that the drying device can fully dry the lithium iron phosphate positive electrode material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is the front view of the utility model;

[0023] Figure 3 For this utility model Figure 2 A partial enlarged view of middle A;

[0024] Figure 4 For this utility model Figure 2 A magnified partial view of B.

[0025] In the figure: 1 bottom column, 2 bottom plate, 3 feeding assembly, 31 active part, 311 rotating shaft, 312 frame, 313 hydraulic telescopic rod 1, 314 hinge block 1, 32 adjusting part, 321 hinge block 2, 322 hydraulic telescopic rod 2, 323 fixed frame, 4 drying assembly, 41 telescopic part, 411 box, 412 positioning column 1, 413 spring 1, 414 positioning column 2, 415 baffle, 42 spring shock part, 421 discharge hopper, 422 positioning column 3, 423 spring 2, 424 positioning column 4, 425 support plate, 426 discharge hopper, 427 slide. DETAILED DESCRIPTION

[0026] 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.

[0027] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. Example 1

[0028] The preferred embodiment of the drying device for producing lithium iron phosphate positive electrode material provided by the utility model is as follows Figure 1-4 Shown: A drying device for producing lithium iron phosphate positive electrode materials, comprising:

[0029] A bottom column 1, a bottom plate 2 is fixedly mounted on the top of the bottom column 1, an electric heating network 5 is arranged below the bottom plate 2, and a fan 6 is arranged below the bottom plate 2;

[0030] A feeding assembly 3, the feeding assembly 3 is fixedly mounted inside the bottom plate 2;

[0031] The feeding assembly 3 includes a movable portion 31 and an adjusting portion 32;

[0032] The movable part 31 includes a rotating shaft 311, a frame 312 is arranged inside the bottom plate 2, a hydraulic telescopic rod 313 is fixedly installed inside the frame 312, an articulated block 314 is movably installed at the output end of the hydraulic telescopic rod 313 through a pin shaft, the rotating shaft 311 is movably installed with the bottom plate 2, both ends of the rotating shaft 311 penetrate the bottom plate 2 and extend to the inside of the bottom plate 2, the rotating shaft 311 is movably installed with the frame 312, and one end of the rotating shaft 311 penetrates the frame 312; start the hydraulic telescopic rod 313, and the articulated block 314 moves;

[0033] The adjustment part 32 includes an articulated block 321, a hydraulic telescopic rod 322 is movably installed inside the articulated block 321 through a pin shaft, a fixing frame 323 is fixedly installed at the bottom of the base plate 2, the articulated block 321 is fixedly installed at the bottom of the frame 312, and the hydraulic telescopic rod 322 is fixedly installed with the fixing frame 323; when the hydraulic telescopic rod 322 is started, the articulated block 321 moves, and the frame 312 fixedly installed with the articulated block 321 rotates with the rotating shaft 311 as a fixed point. Example 2

[0034] Based on Example 1, a preferred embodiment of a drying device for producing lithium iron phosphate positive electrode materials provided by the present invention is as follows: Figure 1-4 As shown: a drying component 4, the drying component 4 is fixedly installed on the top of the bottom plate 2;

[0035] The drying component 4 includes a telescopic portion 41 and a spring-vibrating portion 42;

[0036] The telescopic part 41 includes a box body 411, a positioning column 412 is fixedly installed inside the box body 411, a spring 413 is arranged inside the box body 411, a positioning column 414 is arranged inside the box body 411, a baffle 415 is fixedly installed at the bottom of the positioning column 414, the box body 411 is fixedly installed with the bottom plate 2, one end of the spring 413 is fixedly connected to the inner wall of the box body 411, and the other end of the spring 413 is fixedly connected to the baffle 415, and the spring 413 is sleeved with the positioning column 412 and the positioning column 414; the baffle 415 is in a closed state under the action of the spring 413, and when the discharging operation is performed, the hydraulic telescopic rod 313 presses against the baffle 415 to shrink it;

[0037] The spring shock part 42 includes a discharge hopper 421, a positioning column 3 422 is fixedly installed inside the discharge hopper 421, a spring 2 423, and a positioning column 424 are arranged inside the discharge hopper 421, a support plate 425 is fixedly installed on the top of the positioning column 424, a discharge hopper 426 is fixedly installed on the right side of the bottom plate 2, a chute 427 is provided inside the bottom plate 2, pulleys are fixedly installed on both sides of the discharge hopper 421, and the pulleys are adapted to the chute 427, one end of the spring 2 423 is fixedly connected to the inner wall of the discharge hopper 421, and the other end of the spring 2 423 is fixedly connected to the support plate 425, and the spring 2 423 is fixedly connected to the positioning column 3 4 22. The positioning columns 424 are nested, and the discharge hopper 421 is fixedly installed with the hinge block 314; when the hinge block 314 moves, the discharge hopper 421 fixedly installed with the hinge block 314 moves. When it moves to the end of the slide groove 427, under the action of the hydraulic telescopic rod 322, the discharge hopper 421 rotates with the right pulley as the fixed point, and the discharge hopper 421 tilts, and the lithium iron phosphate positive electrode material inside is discharged through the discharge hopper 426. After the lithium iron phosphate positive electrode material is placed in the discharge hopper 421, the support plate 425 is pressed several times, and under the action of the spring 423, the lithium iron phosphate positive electrode material is shaken open and dispersed to facilitate full drying.

[0038] When in use, the hydraulic telescopic rod 313 is started, and the hinge block 314 moves. When the hinge block 314 moves, the discharge hopper 421 fixedly installed with the hinge block 314 moves. When it moves to the end of the slide groove 427, under the action of the hydraulic telescopic rod 322, the discharge hopper 421 rotates with the right pulley as the fixed point, and the discharge hopper 421 tilts, and the lithium iron phosphate positive electrode material inside is discharged through the discharge hopper 426. 21, press the support plate 425 several times, under the action of the spring 2 423, the lithium iron phosphate positive electrode material is shaken and dispersed to facilitate full drying, start the hydraulic telescopic rod 2 322, the hinge block 2 321 moves, and the frame 312 fixedly installed with the hinge block 2 321 rotates with the rotating shaft 311 as the fixed point. The baffle 415 is in a closed state under the action of the spring 1 413. When the discharging operation is performed, the hydraulic telescopic rod 1 313 resists the baffle 415 to shrink it.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A drying device for producing lithium iron phosphate positive electrode materials, characterized in that: include: A bottom column (1), a bottom plate (2) being fixedly mounted on the top of the bottom column (1), an electric heating network (5) being arranged below the bottom plate (2), and a fan (6) being arranged below the bottom plate (2); A feeding assembly (3), wherein the feeding assembly (3) is fixedly mounted inside the bottom plate (2); Wherein, the feeding component (3) comprises a movable part (31) and an adjusting part (32); A drying component (4), wherein the drying component (4) is fixedly mounted on the top of the bottom plate (2); Wherein, the drying component (4) comprises a telescopic portion (41) and a spring-vibrating portion (42).

2. A drying device for producing lithium iron phosphate positive electrode materials according to claim 1, characterized in that: The movable part (31) includes a rotating shaft (311), a frame (312) is arranged inside the base plate (2), a hydraulic telescopic rod (313) is fixedly installed inside the frame (312), and an articulated block (314) is movably installed at the output end of the hydraulic telescopic rod (313) via a pin.

3. A drying device for producing lithium iron phosphate positive electrode materials according to claim 2, characterized in that: The rotating shaft (311) is movably mounted on the bottom plate (2), both ends of the rotating shaft (311) penetrate the bottom plate (2) and extend into the interior of the bottom plate (2), and the rotating shaft (311) is movably mounted on the frame (312), one end of the rotating shaft (311) penetrates the frame (312).

4. A drying device for producing lithium iron phosphate positive electrode materials according to claim 1, characterized in that: The adjustment portion (32) includes a second hinge block (321), a second hydraulic telescopic rod (322) is movably mounted inside the second hinge block (321) via a pin, a fixing frame (323) is fixedly mounted at the bottom of the base plate (2), the second hinge block (321) is fixedly mounted at the bottom of the frame (312), and the second hydraulic telescopic rod (322) is fixedly mounted on the fixing frame (323).

5. A drying device for producing lithium iron phosphate positive electrode materials according to claim 1, characterized in that: The telescopic portion (41) comprises a box body (411), a first positioning column (412) is fixedly installed inside the box body (411), a first spring (413) is arranged inside the box body (411), a second positioning column (414) is arranged inside the box body (411), and a baffle (415) is fixedly installed at the bottom of the second positioning column (414).

6. A drying device for producing lithium iron phosphate positive electrode materials according to claim 5, characterized in that: The box body (411) is fixedly mounted on the bottom plate (2), one end of the spring 1 (413) is fixedly connected to the inner wall of the box body (411), the other end of the spring 1 (413) is fixedly connected to the baffle (415), and the spring 1 (413) is sleeved with the positioning column 1 (412) and the positioning column 2 (414).

7. A drying device for producing lithium iron phosphate positive electrode materials according to claim 1, characterized in that: The spring shock part (42) includes a discharge hopper (421), a positioning column three (422) is fixedly installed inside the discharge hopper (421), a spring two (423) and a positioning column four (424) are arranged inside the discharge hopper (421), a support plate (425) is fixedly installed on the top of the positioning column four (424), a discharge hopper (426) is fixedly installed on the right side of the bottom plate (2), and a slide groove (427) is opened inside the bottom plate (2).

8. A drying device for producing lithium iron phosphate positive electrode materials according to claim 7, characterized in that: Pulleys are fixedly installed on both sides of the discharge hopper (421), and the pulleys are adapted to the slide grooves (427). One end of the second spring (423) is fixedly connected to the inner wall of the discharge hopper (421), and the other end of the second spring (423) is fixedly connected to the support plate (425). The second spring (423) is sleeved with the third positioning column (422) and the fourth positioning column (424), and the discharge hopper (421) is fixedly installed with the first hinge block (314).

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