Iron impurity removing device for graphite cathode material

Abstract

The utility model discloses a graphite cathode material iron impurity removing device which comprises a fixing plate, a crushing box fixedly connected to the fixing plate, a removing box fixedly connected to the fixing plate, a discharging pipe fixedly connected to the removing box, a conveying pipe connected between the crushing box and the removing box, and a crushing mechanism arranged on the crushing box. A screening mechanism is arranged on the crushing box, and an impurity removing mechanism is arranged on the fixing plate. The first driving motor drives the first rotating shaft, the gear and the crushing wheel to rotate, then raw materials are poured into the crushing box and fall on the crushing wheel, and the crushing wheel crushes the raw materials, so that the raw materials are crushed to proper particle sizes, and the contact area of subsequent treatment is increased.

Description

Technical Field

[0001] This utility model belongs to the field of graphite anode material processing technology, and in particular relates to a device for removing iron impurities from graphite anode materials. Background Technology

[0002] In the production process of lithium battery anode materials, the raw materials need to be crushed, ground, mixed, and sieved. During these processes, some iron impurities will be mixed into the powdered anode materials, which will affect the electrochemical performance of the anode materials.

[0003] Utility model patent CN218573915U discloses a device for removing iron impurities from a negative electrode material. The device includes a housing with a feeding device at the top and a first row of iron inlets, a discharge outlet, and a second row of iron inlets sequentially arranged along the length of the bottom of the housing. The discharge outlet is located below the feeding device. Inside the housing are a first magnetic rod assembly and a second magnetic rod assembly that can simultaneously be positioned above the discharge outlet. The first magnetic rod assembly can move above the first row of iron inlets, and the second magnetic rod assembly can move above the second row of iron inlets. This device directly removes iron impurities from the raw material. However, when the raw material is large, the magnetic rod assembly cannot easily adsorb and remove the iron impurities, resulting in poor iron impurity removal. Therefore, a device for removing iron impurities from graphite negative electrode materials is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a device for removing iron impurities from graphite anode materials, so as to solve the problems mentioned in the background art.

[0005] A device for removing iron impurities from graphite anode materials includes a fixed plate, a crushing box fixedly connected to the fixed plate, a removal box fixedly connected to the fixed plate, a discharge pipe fixedly connected to the removal box, a conveying pipe connecting the crushing box and the removal box, a crushing mechanism and a screening mechanism on the crushing box, and an impurity removal mechanism on the fixed plate.

[0006] Furthermore, the crushing mechanism includes a first fixed frame, a first drive motor, a first rotating shaft, gears, and a crushing wheel. The first fixed frame is fixedly connected to the crushing box, and the first drive motor is fixedly installed on the first fixed frame. Two first rotating shafts are rotatably connected to the crushing box. The first rotating shaft near the first fixed frame is connected to the output shaft of the first drive motor. Gears are connected to the first rotating shafts, and the two gears mesh. The crushing wheel is connected to the first rotating shaft.

[0007] Furthermore, the screening mechanism includes a filter screen, a second electric push rod, a second connecting slide rod, and a pusher plate. The filter screen is fixedly connected inside the crushing box, and the second electric push rod is fixedly installed on the crushing box. The second electric push rod is connected to the telescopic rod of the second electric push rod, and the pusher plate is connected to the second connecting slide rod.

[0008] Furthermore, the impurity removal mechanism includes a slide bar frame, a hydraulic cylinder, a third connecting slide bar, a lifting frame, a third fixed frame, a second drive motor, a second rotating shaft, and an electromagnet. The slide bar frame is fixedly connected to the fixed plate, and a hydraulic cylinder is fixedly installed on the slide bar frame. The third connecting slide bar is connected to the telescopic rod of the hydraulic cylinder. The lifting frame is slidably connected to the slide bar frame and connected to the third connecting slide bar. The third fixed frame is fixedly connected to the lifting frame and a second drive motor is fixedly installed on the third fixed frame. The bottom end of the output shaft of the second drive motor is connected to the second rotating shaft, which is rotatably connected to the lifting frame. An electromagnet is installed on the second rotating shaft.

[0009] Furthermore, the crushing box is equipped with a sealing mechanism, which includes a second fixed frame, a first electric push rod, a first connecting slide rod, and a sealing plate. Two second fixed frames are fixedly connected to the crushing box, and a first electric push rod is fixedly installed on the second fixed frame. The first electric push rod is connected to the telescopic rod of the first electric push rod, and the first connecting slide rod is slidably connected to the crushing box. A sealing plate is connected between the two first connecting slide rods.

[0010] Furthermore, an electric valve was installed on the discharge pipe of the box.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model uses a first drive motor to drive a first rotating shaft, gears and crushing wheel to rotate. Then the raw material is poured into the crushing box and falls onto the crushing wheel. The crushing wheel crushes the raw material to a suitable particle size, thereby increasing the contact area for subsequent processing.

[0013] 2. This utility model uses a filter screen to screen the raw materials, separating out coarse particles with more iron impurities, thus initially reducing impurities. Then, the second electric push rod drives the second connecting slide rod and the pusher plate to move, so that the pusher plate pushes the impurities out of the crushing box, thereby completing the impurity cleaning work. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the iron impurity removal device for graphite anode materials of this utility model;

[0015] Figure 2 A cross-sectional three-dimensional structural diagram with the box removed;

[0016] Figure 3 This is a first sectional three-dimensional structural diagram of the crushing box;

[0017] Figure 4 This is a second sectional three-dimensional structural diagram of the crushing box;

[0018] Figure 5 This is a schematic diagram of the third sectional three-dimensional structure of the crushing box;

[0019] Figure 6 A side view of the three-dimensional structure of the fixed plate;

[0020] Figure 7 This is a side view of the three-dimensional structure of the lifting frame.

[0021] In the diagram, 1-fixed plate, 2-crushing box, 3-feeding pipe, 4-removal box, 5-crushing mechanism, 51-first fixed frame, 52-first drive motor, 53-first rotating shaft, 54-gear, 55-crushing wheel, 6-sealing mechanism, 61-second fixed frame, 62-first electric push rod, 63-first connecting slide rod, 64-sealing plate, 7-screening mechanism, 71-filter screen, 72-second electric push rod, 73-second connecting slide rod, 74-push plate, 8-impurity removal mechanism, 81-slide rod frame, 82-hydraulic cylinder, 83-third connecting slide rod, 84-lifting frame, 85-third fixed frame, 86-second drive motor, 87-second rotating shaft, 88-electromagnet, 9-electric valve. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] like Figures 1 to 7 The graphite anode material iron impurity removal device of this utility model includes a fixed plate 1, a crushing box 2 fixedly connected to the fixed plate 1, a removal box 4 fixedly connected to the fixed plate 1, a discharge pipe fixedly connected to the removal box 4, a conveying pipe 3 connecting the crushing box 2 and the removal box 4, a crushing mechanism 5 and a screening mechanism 7 provided on the crushing box 2, and an impurity removal mechanism 8 provided on the fixed plate 1.

[0024] The crushing mechanism 5 includes a first fixed frame 51, a first drive motor 52, a first rotating shaft 53, a gear 54, and a crushing wheel 55. The first fixed frame 51 is fixedly connected to the crushing box 2, and the first drive motor 52 is fixedly installed on the first fixed frame 51. Two first rotating shafts 53 are rotatably connected to the crushing box 2. The first rotating shaft 53 near the first fixed frame 51 is connected to the output shaft of the first drive motor 52. The gear 54 is connected to the first rotating shaft 53, and the two gears 54 mesh. The crushing wheel 55 is connected to the first rotating shaft 53 and is used to crush the raw materials.

[0025] The screening mechanism 7 includes a filter screen 71, a second electric push rod 72, a second connecting slide rod 73, and a pusher plate 74. The filter screen 71 is fixedly connected inside the crushing box 2. The filter screen 71 is used to screen impurities in the raw materials. The second electric push rod 72 is fixedly installed on the crushing box 2. The second electric push rod 72 is connected to the telescopic rod of the second electric push rod 72. The second connecting slide rod 73 is connected to the second connecting slide rod 73. The pusher plate 74 is used to push impurities.

[0026] The impurity removal mechanism 8 includes a slide bar frame 81, a hydraulic cylinder 82, a third connecting slide bar 83, a lifting frame 84, a third fixed frame 85, a second drive motor 86, a second rotating shaft 87, and an electromagnet 88. The slide bar frame 81 is fixedly connected to the fixed plate 1. The hydraulic cylinder 82 is fixedly installed on the slide bar frame 81. The third connecting slide bar 83 is connected to the telescopic rod of the hydraulic cylinder 82. The lifting frame 84 is slidably connected to the slide bar frame 81. The lifting frame 84 is connected to the third connecting slide bar 83. The third fixed frame 85 is fixedly connected to the lifting frame 84. The second drive motor 86 is fixedly installed on the third fixed frame 85. The bottom end of the output shaft of the second drive motor 86 is connected to the second rotating shaft 87. The second rotating shaft 87 is rotatably connected to the lifting frame 84. An electromagnet 88 is installed on the second rotating shaft 87. The electromagnet 88 is used to adsorb iron impurities in the raw materials.

[0027] The crushing box 2 is equipped with a sealing mechanism 6, which includes a second fixed frame 61, a first electric push rod 62, a first connecting slide rod 63, and a sealing plate 64. Two second fixed frames 61 are fixedly connected to the crushing box 2. The first electric push rod 62 is fixedly installed on the second fixed frame 61. The first connecting slide rod 63 is connected to the telescopic rod of the first electric push rod 62. The first connecting slide rod 63 is slidably connected to the crushing box 2. The sealing plate 64 is connected between the two first connecting slide rods 63.

[0028] An electric valve 9 is installed on the discharge pipe of the removal box 4.

[0029] The working principle of this utility model is as follows: A first drive motor drives a first rotating shaft, gears, and a crushing wheel to rotate. Then, a second drive motor drives a second rotating shaft and an electromagnet to rotate. The electromagnet enters an energized working state. Raw materials are then poured into the crushing box and fall onto the crushing wheel, which crushes the materials to a suitable particle size, increasing the contact area for subsequent processing. After crushing, the raw materials fall onto a filter screen, which sieves them, separating out coarse particles containing more iron impurities, thus initially reducing impurities. The sieved raw materials flow through a conveyor pipe into a removal box. When the raw materials come into contact with the electromagnet... When the magnet comes into contact, the iron impurities are attracted by the electromagnet. After the iron impurities are attracted, the electric valve is controlled to open the discharge pipe of the removal box. The raw material with removed iron impurities will be discharged through the discharge pipe of the removal box. After the raw material is screened, the first electric push rod drives the first connecting slide rod and the closing plate to rise, thereby opening the crushing box channel. Then, the second electric push rod drives the second connecting slide rod and the pusher plate to move, so that the pusher plate pushes the impurities out of the crushing box, thereby completing the impurity cleaning work. After the impurities are cleaned, the second electric push rod drives the second connecting slide rod and the pusher plate to move in the opposite direction to the reset position, and the first electric push rod drives the first connecting slide rod and the closing plate to descend to the reset position.

[0030] After the raw material impurities are removed, the hydraulic cylinder drives the third connecting slide bar, lifting frame, third fixed frame, second drive motor, second rotating shaft and electromagnet to rise, so that the electromagnet is detached from the inside of the removal box. When you want to collect the iron impurities on the electromagnet, place a collection bag under the electromagnet, then control the electromagnet to turn off the power, and after releasing the adsorption state of the iron impurities, the iron impurities will fall into the collection bag.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A graphite negative electrode material iron impurity removal device, characterized by: The graphite negative electrode material iron impurity removal device comprises a fixed plate, a crushing box fixedly connected to the fixed plate, a removal box fixedly connected to the fixed plate, a discharge pipe fixedly connected to the removal box, a feeding pipe connected between the crushing box and the removal box, a crushing mechanism arranged on the crushing box, a screening mechanism arranged on the crushing box, and an impurity removal mechanism arranged on the fixed plate.

2. The graphite negative electrode material iron impurity removal device according to claim 1, characterized in that: The crushing mechanism comprises a first fixed frame, a first driving motor, two first rotating shafts, a gear and a crushing wheel, the first fixed frame is fixedly connected to the crushing box, the first driving motor is fixedly installed on the first fixed frame, the two first rotating shafts are rotatably connected to the crushing box, the first rotating shaft close to the first fixed frame is connected with the output shaft of the first driving motor, the gear is connected to the first rotating shaft, the two gears are engaged, and the crushing wheel is connected to the first rotating shaft. 3.The graphite negative electrode material iron impurity removal device according to claim 1, characterized in that: The screening mechanism comprises a filter screen plate, a second electric push rod, a second connecting slide rod and a pushing plate, the filter screen plate is fixedly connected to the crushing box, the second electric push rod is fixedly installed on the crushing box, the second connecting slide rod is connected to the second electric push rod, and the pushing plate is connected to the second connecting slide rod.

4. The graphite negative material iron impurity removal device according to claim 1, characterized in that: The impurity removal mechanism comprises a slide rod frame, a hydraulic cylinder, a third connecting slide rod, a lifting frame, a third fixed frame, a second driving motor, a second rotating shaft and an electromagnet, the slide rod frame is fixedly connected to the fixed plate, the hydraulic cylinder is fixedly installed on the slide rod frame, the third connecting slide rod is connected to the hydraulic cylinder, the lifting frame is slidably connected to the slide rod frame, the lifting frame is connected with the third connecting slide rod, the third fixed frame is fixedly connected to the lifting frame, the second driving motor is fixedly installed on the third fixed frame, the second rotating shaft is connected to the bottom end of the output shaft of the second driving motor, the second rotating shaft is rotatably connected to the lifting frame, and the electromagnet is installed on the second rotating shaft.

5. The graphite negative material iron impurity removal device according to claim 1, characterized in that: The crushing box is provided with a sealing mechanism, the sealing mechanism comprises two second fixed frames, a first electric push rod, a first connecting slide rod and a sealing plate, the two second fixed frames are fixedly connected to the crushing box, the first electric push rod is fixedly installed on the second fixed frame, the first connecting slide rod is connected to the first electric push rod, the first connecting slide rod is slidably connected to the crushing box, and the sealing plate is connected between the two first connecting slide rods. 6.The graphite negative electrode material iron impurity removal device according to claim 1, characterized by: An electric valve is installed on the discharge pipe of the removal box.

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