Drying equipment for production of nickel-cobalt-manganese precursor

Abstract

The utility model discloses a drying device for production of a nickel-cobalt-manganese precursor, which comprises a drying box provided with a feeding unit and a discharging unit; the discharging box is rotatably installed in the drying box, and a rotating shaft of the discharging box is arranged on the side wall of the drying box in a penetrating mode; the overturning unit is rotationally connected into the discharging box, a space for discharging exists between the overturning unit and the discharging box, and connecting shafts are arranged at the two ends of the overturning unit, penetrate through the rotating shafts and extend out of the drying box and the rotating shafts; the driving unit comprises a motor in transmission connection with the connecting shaft and a one-way transmission assembly connected between the discharging box and the connecting shaft. When the output shaft of the motor in the driving unit rotates forwards, only the material turning unit is driven to turn materials in the material placing box, when the output shaft of the motor rotates backwards, the material placing box is driven to rotate through the one-way transmission assembly to enable the feeding port in the material placing box to face downwards for discharging, and the overall structure is simple.

Description

Technical Field

[0001] The utility model relates to the field of battery material sintering equipment, in particular to drying equipment for producing nickel-cobalt-manganese precursors. Background Art

[0002] Nickel-cobalt-manganese ternary positive electrode material is a lithium battery positive electrode material. It is a precursor composed of three transition metal elements, nickel, cobalt and manganese, and is sintered with a lithium source (such as lithium carbonate, lithium hydroxide, etc.) at high temperature. The quality of the nickel-cobalt-manganese precursor directly affects the cycle and rate performance of the nickel-cobalt-manganese ternary material. Among them, cobalt has the characteristics of improving material safety. Relying on the many advantages of ternary materials, it has developed rapidly in the battery field.

[0003] Prior art, such as the patent with publication number CN215571723U, discloses a drying device for the production of nickel-cobalt-manganese precursors, including a base, a drying box and a fixed table; a drying box is installed on the top of the base, a fixed table is installed on the bottom of the drying box, and a heater is provided on the top of the drying box; an adjustment component is provided inside the base, the adjustment component includes a threaded rod, a sliding rod and a containing chamber, a threaded rod is vertically installed on the inner wall of the drying box through a thread, and a handle is installed on the other end of the threaded rod that passes through the drying box; a slide groove is provided on the top of the fixed table, and a sliding rod is horizontally installed on the inner wall of the slide groove; it can prevent the hand from directly moving the material baked inside the drying box, and at the same time, the material can be placed more intuitively, ensuring the convenience of the device during operation, and preventing personnel from being burned during operation, causing certain injuries.

[0004] The above prior art has obvious beneficial effects, but still has shortcomings:

[0005] In the above-mentioned prior art, when drying the nickel-cobalt-manganese precursor, the material needs to be placed in a material frame and heated and dried by a heater, but the material is piled up when placed in the material frame. During drying, the heating effect of the lower layer of material is lower than that of the upper layer of material, resulting in the lower layer of material being not completely dried after the upper layer of material is dried, affecting the drying efficiency. In order to make the material completely dry, the upper layer of material may be over-dried, affecting the quality. Therefore, a drying device for the production of nickel-cobalt-manganese precursor is proposed. Summary of the invention

[0006] The utility model aims to provide a drying device for the production of nickel-cobalt-manganese precursors, which can fully and quickly dry the nickel-cobalt-manganese precursors, improve the drying efficiency, and evenly dry the materials.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a drying device for producing nickel-cobalt-manganese precursor, which comprises:

[0008] A drying box, on which a feeding unit and a discharging unit are provided;

[0009] A material discharge box is rotatably installed in the drying box, and a rotating shaft of the material discharge box is passed through the side wall of the drying box;

[0010] A turning unit is rotatably connected to the discharge box, and there is a space between the turning unit and the discharge box for discharging materials. Connecting shafts are arranged on both ends of the turning unit, and the connecting shafts are passed through the rotating shaft and extend out of the drying box and the rotating shaft.

[0011] A driving unit, comprising a motor drivingly connected to the connecting shaft, and a one-way transmission assembly connected between the discharge box and the connecting shaft;

[0012] When the motor drives the material turning unit to rotate along a first direction, the material discharge box is stationary; when the motor drives the material turning unit to rotate along a second direction, the material discharge box rotates along with the material turning unit in the second direction.

[0013] In another embodiment, a hot air blower is installed on the top of the drying box.

[0014] In another embodiment, the material turning unit includes two turntables rotatably connected to the material discharge box, and a turning plate is fixedly connected between the two turntables.

[0015] In another implementation manner, the rotating shaft is fixed on the two rotating disks respectively.

[0016] In another embodiment, the one-way transmission assembly includes a transmission plate, a bearing, a driving ring, a pawl and an elastic sheet, the transmission plate is fixedly connected to the outer wall of one of the connecting shafts whose one end is passed through the outside of the drying box, the transmission plate is rotatably connected to the driving ring through the bearing, a plurality of ratchet grooves are opened on the outer peripheral surface of the transmission plate, one end of the pawl is rotatably connected to the driving ring, and the other end is movably engaged with the ratchet groove, the inner wall of the driving ring is fixedly connected with an elastic sheet for causing the pawl to always have a tendency to be in the ratchet groove, when the motor drives the turning unit to rotate in a first direction, the pawl is movably connected to the ratchet groove, and when the motor drives the turning unit to rotate in a second direction, the pawl is engaged with the ratchet groove, and the discharge box rotates along with the turning unit in the second direction.

[0017] In another embodiment, the bearing is installed between the transmission plate and the drive ring.

[0018] In another embodiment, a plurality of brackets are fixedly connected to the inner wall of the driving ring, and the pawl is rotatably connected inside the bracket.

[0019] In another embodiment, the feeding unit includes a discharge port opened on the side wall of the drying box, a guide hopper is fixedly connected to the inner wall of the discharge port, the guide hopper corresponds to the feed port, a plurality of slide grooves are opened on the side wall of the drying box, a first shielding plate for shielding the discharge port is slidably connected in the slide groove.

[0020] In another embodiment, the discharging unit includes a discharging port opened on the side wall of the drying box, and an inclined plate for guiding materials is fixedly connected inside the drying box, and the lower end of the inclined plate corresponds to the discharging port.

[0021] In another embodiment, a plurality of rotating blocks are fixedly connected to the side wall of the drying box, and the ends of the rotating blocks are rotatably connected to a second shielding plate for shielding the discharge port.

[0022] In another embodiment, an air collecting duct is fixedly connected to the inner top wall of the drying box, the air collecting duct is communicated with the output end of the hot air blower, and the air collecting duct corresponds to the feed port.

[0023] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0024] The utility model arranges a material discharge box and a material turning unit driven to rotate by a driving unit in a drying box. When the motor output shaft in the driving unit rotates forward, it only drives the material turning unit to turn the material in the material discharge box, so that the hot air blower can fully and efficiently dry the material. When the motor output shaft is reversed, the material discharge box is driven to rotate through a one-way transmission component so that the feed port on the material discharge box faces downward for material discharge. The overall structure is simple, the drying efficiency of nickel-cobalt-manganese precursors is improved, and loading and unloading are convenient.

[0025] The utility model achieves different transmission purposes through the forward and reverse rotation of the motor, has a simple structure, low manufacturing cost and improved practicality;

[0026] The utility model provides a guide hopper corresponding to the feed opening on the discharge box, so that materials can be directly put into the discharge box through the discharge opening along the guide hopper from outside the drying box, and a movable first shielding plate is provided outside the discharge opening to reduce heat loss when drying the materials, thereby facilitating material loading.

[0027] The utility model installs an inclined plate in the drying box, the inclined plate corresponds to the discharge port, the dried material can slide out along the inclined plate and the discharge port for discharge, and a rotatable second shielding plate is arranged outside the discharge port, so as to reduce heat loss when drying the material and facilitate discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the opening structure of the first shielding plate and the second shielding plate of the utility model;

[0030] Figure 3 It is a schematic diagram of the cross-sectional structure of the drying box of the utility model;

[0031] Figure 4 It is a structural schematic diagram of the material discharge box, the material turning unit and the one-way transmission component of the utility model;

[0032] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0033] In the figure: 1. drying box; 2. hot air blower; 3. discharge box; 4. turning unit; 41. turntable; 42. turning plate; 5. driving unit; 51. motor; 52. rotating shaft; 53. connecting shaft; 54. one-way transmission assembly; 541. transmission plate; 542. bearing; 543. driving ring; 544. ratchet groove; 545. bracket; 546. ratchet; 547. elastic sheet; 6. feed port; 7. feed unit; 71. discharge port; 72. guide hopper; 73. slide; 74. first baffle plate; 8. discharge unit; 81. discharge port; 82. inclined plate; 83. rotating block; 84. second baffle plate; 9. air collecting duct. DETAILED DESCRIPTION

[0034] like Figure 1 As shown, the drying equipment for producing nickel-cobalt-manganese precursor includes: a drying box 1, a material discharge box 3, a material turning unit 4, and a driving unit 5.

[0035] The drying box 1 is provided with a feeding unit 7 and a discharging unit; the discharge box 3 is rotatably installed in the drying box 1, and the rotating shaft 52 of the discharge box 3 is penetrated on the side wall of the drying box 1; the turning unit 4 is rotatably connected in the discharge box 3, and there is a space for discharging materials between it and the discharge box 3, and connecting shafts 53 are provided on both ends of the turning unit, and the connecting shafts 53 are penetrated in the rotating shaft 52 and extend out of the drying box 1 and the rotating shaft 52; the driving unit 5 includes a motor 51 that is transmission-connected to the connecting shaft 53, and a one-way transmission component 54 connected between the discharge box 3 and the connecting shaft 53; when the motor 51 drives the turning unit 4 to rotate in a first direction, the discharge box 3 is stationary, and when the motor 51 drives the turning unit 4 to rotate in a second direction, the discharge box 3 rotates along the second direction with the turning unit 4.

[0036] Specifically:

[0037] A hot air blower 2 is installed on the top of the drying box 1; the turning unit 4 includes two turntables 41 rotatably connected to the material discharge box 3, and a turning plate 42 is fixedly connected between the two turntables 41; and the rotating shafts 52 are respectively fixed on the two turntables 41.

[0038] The one-way transmission assembly 54 includes a transmission plate 541, a bearing 542, a driving ring 543, a ratchet 546 and an elastic sheet 547. The transmission plate 541 is fixedly connected to the outer wall of one of the connecting shafts 53, one end of which is inserted outside the drying box 1. The transmission plate 541 is rotatably connected to the driving ring 543 through the bearing 542. A plurality of ratchet grooves 544 are provided on the outer peripheral surface of the transmission plate 541. One end of the ratchet 546 is rotatably connected to the driving ring 543, and the other end is movably engaged with the ratchet groove 544. The inner wall of the driving ring 543 is fixedly connected with an elastic sheet 547 for making the ratchet 546 have a tendency to always be in the ratchet groove 544. The bearing 542 is installed between the transmission plate 541 and the driving ring 543. A plurality of brackets 545 are fixedly connected to the inner wall of the driving ring 543, and the ratchet 546 is rotatably connected in the bracket 545.

[0039] The feeding unit 7 includes a discharge port 71 provided on the side wall of the drying box 1, and a guide hopper 72 is fixedly connected to the inner wall of the discharge port 71, and the guide hopper 72 corresponds to the feed port 6. The side wall of the drying box 1 is provided with a plurality of chutes 73, and a first shielding plate 74 for shielding the discharge port 71 is slidably connected in the chutes 73; when it is necessary to put materials into the discharge box 3, the output shaft of the start motor 51 is reversed, so that the feed port 6 on the discharge box 3 is rotated to correspond to the guide hopper 72. At this time, the material can be put into the guide hopper 72 from the discharge port 71, and the material slides down along the guide hopper 72 and enters the discharge box 3 through the feed port 6 to realize the discharge. When the material is dried, the first shielding plate 74 is moved to slide with the chute 73, so that the first shielding plate 74 blocks the discharge port 71, so that the heat inside the drying box 1 will not be discharged from the discharge port 71, so as to avoid affecting the efficiency of material drying, improve practicality, and facilitate loading.

[0040] The discharging unit 8 includes a discharging port 81 provided on the side wall of the drying box 1, an inclined plate 82 for guiding materials is fixedly connected inside the drying box 1, and the lower end of the inclined plate 82 corresponds to the discharging port 81. A plurality of rotating blocks 83 are fixedly connected to the side wall of the drying box 1, and the ends of the rotating blocks 83 are rotatably connected with a second shielding plate 84 for shielding the discharging port 81; when it is necessary to discharge the dried materials in the discharging box 3, the feeding port 6 on the discharging box 3 is turned downward, and the materials slide out along the feeding port 6, fall onto the inclined plate 82, and slide down along the inclined plate 82 until they are discharged from the discharging port 81, so as to facilitate the unloading. When the materials are dried, the second shielding plate 84 is rotated to shield the discharging port 81, so that the heat inside the drying box 1 will not be discharged from the discharging port 81, so as to avoid affecting the efficiency of material drying, improve practicality, and facilitate loading.

[0041] An air collecting duct 9 is fixedly connected to the inner top wall of the drying box 1, and the air collecting duct 9 is connected to the output end of the hot air blower 2, and the air collecting duct 9 corresponds to the feed port 6; when drying the material, the feed port 6 on the discharge box 3 is turned upward, and the air collecting duct 9 is connected to the feed port 6. At this time, the hot air blown out by the hot air blower 2 can be transported to the discharge box 3 along the air collecting duct 9 and the feed port 6, so that the hot air blown out by the hot air blower 2 can be gathered and transported, so as to facilitate the drying of the material.

[0042] When the motor 51 drives the turning unit 4 to rotate in the first direction, the pawl 546 is movably connected with the ratchet groove 544, and the connecting shaft 53 rotates while driving the transmission plate 541 to rotate under the drive of the motor 51, but the transmission plate 541 will not drive the drive ring 543 to rotate, that is, the turning unit 4 rotates, and the discharge box 3 is stationary. When the motor 51 drives the turning unit 4 to rotate in the second direction, the pawl 546 is engaged with the ratchet groove 544, and the connecting shaft 53 rotates while driving the transmission plate 541 to rotate under the drive of the motor 51, and the transmission plate 541 drives the drive ring 543 to rotate, and the drive ring 543 drives the rotating shaft 52 and then drives the discharge box 3 to rotate along with the turning unit 4 in the second direction.

[0043] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A drying device for producing nickel-cobalt-manganese precursor, characterized in that: It includes: A drying box, on which a feeding unit and a discharging unit are provided; A material discharge box is rotatably installed in the drying box, and a rotating shaft of the material discharge box is passed through the side wall of the drying box; A turning unit is rotatably connected to the discharge box, and there is a space between the turning unit and the discharge box for discharging materials. Connecting shafts are arranged on both ends of the turning unit, and the connecting shafts are passed through the rotating shaft and extend out of the drying box and the rotating shaft. A driving unit, comprising a motor drivingly connected to the connecting shaft, and a one-way transmission assembly connected between the discharge box and the connecting shaft; When the motor drives the material turning unit to rotate along a first direction, the material discharge box is stationary; when the motor drives the material turning unit to rotate along a second direction, the material discharge box rotates along with the material turning unit in the second direction.

2. The drying equipment for producing nickel-cobalt-manganese precursor according to claim 1, characterized in that: A hot air blower is installed on the top of the drying box.

3. The drying equipment for producing nickel-cobalt-manganese precursor according to claim 1, characterized in that: The material turning unit comprises two turntables rotatably connected in the material discharge box, and a turning plate is fixedly connected between the two turntables.

4. The drying equipment for producing nickel-cobalt-manganese precursor according to claim 3, characterized in that: The rotating shafts are respectively fixed on the two rotating disks.

5. The drying equipment for producing nickel-cobalt-manganese precursor according to claim 1, characterized in that: The one-way transmission assembly includes a transmission plate, a bearing, a driving ring, a pawl and an elastic sheet, the transmission plate is fixedly connected to the outer wall of one of the connecting shafts with one end passing through the outside of the drying box, the transmission plate is rotatably connected to the driving ring through the bearing, a plurality of ratchet grooves are opened on the outer peripheral surface of the transmission plate, one end of the pawl is rotatably connected to the driving ring, and the other end is movably engaged with the ratchet groove, and an elastic sheet for causing the pawl to always be in the ratchet groove is fixedly connected to the inner wall of the driving ring, when the motor drives the turning unit to rotate in a first direction, the pawl is movably connected to the ratchet groove, and when the motor drives the turning unit to rotate in a second direction, the pawl is engaged with the ratchet groove, and the discharge box rotates along with the turning unit in the second direction.

6. The drying equipment for producing nickel-cobalt-manganese precursor according to claim 5, characterized in that: The bearing is mounted between the transmission plate and the drive ring.

7. The drying equipment for producing nickel-cobalt-manganese precursor according to claim 5, characterized in that: The inner wall of the driving ring is fixedly connected with a plurality of brackets, and the ratchet pawl is rotatably connected in the brackets.

8. The drying equipment for producing nickel-cobalt-manganese precursor according to claim 2, characterized in that: The feeding unit includes a discharge port opened on the side wall of the drying box, a guide hopper is fixedly connected to the inner wall of the discharge port, the guide hopper corresponds to the feed port, a plurality of slide grooves are opened on the side wall of the drying box, a first shielding plate for shielding the discharge port is slidably connected in the slide groove.

9. The drying equipment for producing nickel-cobalt-manganese precursor according to claim 1, characterized in that: The discharging unit comprises a discharging port opened on the side wall of the drying box, and an inclined plate for guiding materials is fixedly connected inside the drying box, and the lower end of the inclined plate corresponds to the discharging port.

10. The drying equipment for producing nickel-cobalt-manganese precursor according to claim 9, characterized in that: A plurality of rotating blocks are fixedly connected to the side wall of the drying box, and the ends of the rotating blocks are rotatably connected to a second shielding plate for shielding the discharge port.

11. The drying equipment for producing nickel-cobalt-manganese precursor according to claim 8, characterized in that: An air collecting duct is fixedly connected to the inner top wall of the drying box. The air collecting duct is communicated with the output end of the hot air blower and corresponds to the feed port.

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