Impurity removal device for composite conductive slurry

Abstract

The utility model relates to a composite conductive slurry impurity removal device which comprises a support, a storage barrel is arranged at the upper end of the support, and a discharge pipe is arranged at the bottom end of the storage barrel. An impurity removal assembly is obliquely and downwards arranged at the lower end of the support and comprises a rotary drum, a magnetic bar and a driving device, the rotary drum is obliquely arranged, an inlet pipe seat is rotationally connected to a pipe opening in the upper end of the rotary drum, and a connecting pipe is arranged on the inlet pipe seat and connected with a discharging pipe; an outlet pipe seat is rotationally connected to a pipe orifice at the lower end of the rotary drum and is connected with the bracket through a hoisting frame; the rotary drum is driven by a driving device arranged on the bracket to rotate; a plurality of containing grooves are evenly formed in the inner wall of the rotary drum in the circumferential direction, a magnetic bar is arranged in each containing groove, the magnetic bars are limited through the containing grooves, the side walls of the magnetic bars protrude out of the inner wall of the rotary drum, the rotary drum is driven by the motor to rotate, and the conductive paste flows on the inner wall of the rotary drum in a spiral track. And therefore, the impurity removal device can be in full contact with each magnetic bar, and the impurity removal quality is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of conductive paste technology, and in particular to a device for removing impurities from composite conductive paste. Background Technology

[0002] Conductive slurries inevitably contain trace amounts of magnetic metal impurities during preparation. If these impurities are not removed and are directly mixed into the slurry to form a battery, they will be gradually oxidized at the high potential of the positive electrode, passing through the separator in ionic form and being reduced and precipitated at the negative electrode. Throughout this process, the cell voltage will fluctuate, leading to excessive self-discharge. In severe cases, dendrites may form, puncturing the separator and causing a short circuit within the cell, posing a safety risk. Chinese patent document CN201922022495.9 discloses a device for removing iron impurities from conductive slurries. This application uses a vertically arranged filter plate assembly with several strong magnets on the surfaces of two filter plates. The conductive slurry flows through the filter plate assembly, thereby adsorbing the iron impurities in the slurry through the magnets. However, because the filter plates are arranged vertically, the slurry descends too quickly. Although the demagnetization efficiency is high, some slurry does not make sufficient contact with the two filter plates, thus affecting the actual demagnetization quality. Utility Model Content

[0003] To address the aforementioned problems, this utility model discloses a composite conductive paste impurity removal device, which effectively overcomes the problem of insufficient contact between the conductive paste and the magnetic block in the prior art, thereby significantly improving the efficiency of iron impurity removal.

[0004] The specific technical solution is as follows:

[0005] A composite conductive paste impurity removal device includes a support frame. A storage tank is mounted on the upper end of the support frame, and a discharge pipe is located at the bottom end of the storage tank. An impurity removal assembly is inclined downwards at the lower end of the support frame. The assembly includes a rotating drum, a magnetic rod, and a driving device. The rotating drum is inclined, and an inlet pipe seat is rotatably connected to the upper end of the drum. The inlet pipe seat has a connecting pipe for connecting and fixing to the discharge pipe. An outlet pipe seat is rotatably connected to the lower end of the drum, and the outlet pipe seat is connected and fixed to the support frame via a lifting bracket. One end of the outlet pipe is open and the conductive slurry is discharged to the receiving bucket; the rotating drum is driven to rotate by a drive device mounted on the support; several receiving grooves are evenly distributed along the circumference of the inner wall of the rotating drum, each receiving groove is arranged along the axial direction of the rotating drum, and a magnetic rod is embedded in each receiving groove. The magnetic rod is limited by the receiving groove and the side wall of the magnetic rod protrudes from the inner wall of the rotating drum. The lower end of the magnetic rod is pressed and limited by a positioning ring set at the lower end of the rotating drum to prevent the magnetic rod from falling out of the receiving groove.

[0006] Furthermore, the driving device includes a drive motor, a drive wheel, a driven wheel, and a transmission belt. The drive motor is mounted obliquely on the bottom of the support via a bracket. The drive wheel is mounted on the output shaft of the drive motor. The lower end of the drive wheel is connected to the driven wheel mounted on the outer wall of the drum via a transmission belt, thereby enabling the drive motor to drive the drum to rotate.

[0007] Furthermore, the size and shape of the magnetic rod are adapted to the size and shape of the receiving groove. The two sides of the receiving groove are attached to the two sides of the magnetic rod and limit the magnetic rod. The lower end of the magnetic rod is supported and positioned by a positioning ring, and the upper end of the magnetic rod is abutted against one end of the receiving groove.

[0008] Furthermore, each of the magnetic rods has an adjustment slot at one end.

[0009] Furthermore, a stepped groove is formed on the inner wall of the lower end of the rotating drum, and the positioning ring is threaded onto the stepped groove. The inner wall of the positioning ring is flush with the inner wall of the rotating drum, so that one end of the positioning ring presses and positions each magnetic rod.

[0010] Furthermore, one end of the inlet pipe seat has a protruding insertion pipe, which is embedded in the upper end of the rotating drum, and the outer wall of the insertion pipe is rotatably connected to the inner wall of the rotating drum through a bearing.

[0011] Furthermore, one end of the outlet pipe seat is provided with a connecting sleeve, which is sleeved on the outer wall of the rotating drum, and the inner wall of the connecting sleeve is rotatably connected to the outer wall of the rotating drum through a bearing.

[0012] The beneficial effects of this utility model are reflected in:

[0013] (1) This utility model adopts an inclined rotating drum. The rotating drum is driven by a motor to rotate, so that the conductive slurry flows in a spiral trajectory on the inner wall of the rotating drum, thereby enabling it to fully contact each magnetic rod and effectively improving the impurity removal quality.

[0014] (2) The inner wall of the rotating drum limits the magnetic rod through a accommodating groove of appropriate size. When cleaning the magnetic rod, the outlet tube seat and positioning ring are disassembled, and the tool is used to cooperate with the adjustment groove at one end of the magnetic rod to make the magnetic rod rotate in the accommodating groove and concentrate the magnetic impurities on its surface to one side, so that a scraping tool can be inserted into the rotating drum for cleaning. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a side sectional view of the transfer cylinder of this utility model.

[0017] Figure 3 This is the front view of the transfer cylinder of this utility model.

[0018] Figure 4 for Figure 2 Enlarged diagram of point A in the middle.

[0019] Explanation of reference numerals in the attached drawings: 1. Support bracket; 2. Storage hopper; 21. Discharge pipe; 3. Receiving hopper; 4. Rotary drum; 41. Receiving groove; 42. Step groove; 43. Positioning ring; 5. Magnetic rod; 51. Adjustment slot; 6. Inlet pipe seat; 61. Connecting pipe; 62. Insertion pipe; 7. Outlet pipe seat; 71. Connecting sleeve; 72. Lifting frame; 8. Drive motor; 81. Drive wheel; 82. Driven wheel; 83. Transmission belt. Detailed Implementation

[0020] To make the technical solution of this utility model clearer and more explicit, the utility model will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this utility model falls within the protection scope of this utility model. The fixed connections and fixed settings mentioned in this utility model are all common connection methods in the mechanical field, including welding, bolt and nut connections, and screw connections.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Please see the appendix Figure 1-4This embodiment provides a composite conductive slurry impurity removal device, which mainly utilizes magnetic attraction to remove magnetic metal impurities from the conductive slurry. The impurity removal device includes a support 1, with a storage tank 2 mounted on the upper end of the support 1. The bottom end of the storage tank 2 passes downward through the support 1 and is equipped with a discharge pipe 21, which has a switch valve. An impurity removal component is inclined downward at the lower end of the support 1, and a receiving tank 3 for receiving the conductive slurry is placed at one end of the impurity removal component. The impurity removal component includes a rotating drum 4, a magnetic rod 5, and a driving device. The rotating drum 4 is inclined, and an inlet pipe seat 6 is rotatably connected to the upper end of the rotating drum 4. The inlet pipe seat 6 is equipped with a connecting pipe 61 for connecting and fixing to the discharge pipe 21. An outlet pipe seat 7 is rotatably connected to the lower end of the rotating drum 4. The outlet pipe seat 7 is connected and fixed to the bottom of the support 1 via a lifting frame 72. One end of the outlet pipe seat 7 is open and discharges the conductive slurry to the receiving tank 3. The rotating drum 4 is driven to rotate by the driving device mounted on the support 1. The inner wall of the rotating drum 4 is evenly distributed with several receiving grooves 41 along the circumference. Each receiving groove 41 is arranged along the axial direction of the rotating drum 4, and a cylindrical magnetic rod 5 is embedded in each receiving groove 41. The magnetic rod 5 is limited by the receiving groove 41, and its side wall protrudes from the inner wall of the rotating drum 4. The lower end of the magnetic rod 5 is pressed and limited by a positioning ring 43 located at the lower end of the rotating drum 4 to prevent the magnetic rod 5 from falling out of the receiving groove 41. During impurity removal, the rotation of the rotating drum 4 allows the conductive paste to flow downwards and make full contact with each magnetic rod 5, thereby improving the quality of impurity removal and reducing residue.

[0023] The size and shape of the magnetic rod 5 are adapted to the size and shape of the receiving groove 41. The two sides of the receiving groove 41 are in contact with the two sides of the magnetic rod 5 and limit the magnetic rod 5. The lower end of the magnetic rod 5 is supported and positioned by the positioning ring 43, and the upper end of the magnetic rod 5 is against one end of the receiving groove 41. Each magnetic rod 5 has a straight adjustment slot 51 at one end. By using a tool to cooperate with the adjustment slot 51, the magnetic rod 5 can be rotated. Due to the rotation of the magnetic rod 5, the magnetic impurities adsorbed on the surface of the magnetic rod 5 can be scraped off by the side of the receiving groove 41 and concentrated on one side, so that a scraping tool can be inserted into the rotating drum 4 to clean the impurities on one side of the magnetic rod 5.

[0024] A stepped groove 42 is formed on the inner wall of the lower end of the rotating drum 4, and the lower end of the receiving groove 41 extends to the stepped groove 42. The positioning ring 43 is threaded onto the stepped groove 42, and the inner wall of the positioning ring 43 is flush with the inner wall of the rotating drum 4, so that one end of the positioning ring 43 presses and positions each magnetic rod 5. The inner diameter of the positioning ring 43 is not greater than the inner diameter of the outlet pipe seat 7.

[0025] In this embodiment, one end of the inlet pipe seat 6 is provided with a plug pipe, which is embedded in the upper end of the rotating drum 4, and the outer wall of the plug pipe is rotatably connected to the inner wall of the rotating drum 4 through a bearing.

[0026] In this embodiment, one end of the outlet pipe seat 7 is provided with a connecting sleeve 71, which is sleeved on the outer wall of the lower end of the rotating drum 4. The inner wall of the connecting sleeve 71 is rotatably connected to the outer wall of the rotating drum 4 through a bearing. When cleaning the magnetic rod 5, the outlet pipe seat 7 needs to be disassembled and the positioning ring 43 needs to be removed. Then, the magnetic rod 5 is rotated and cleaned using tools.

[0027] In this embodiment, the driving device includes a drive motor 8, a driving wheel 81, a driven wheel 82, and a transmission belt 83. The drive motor 8 is mounted obliquely on the bottom of the bracket 1 via a support. The driving wheel 81 is mounted on the output shaft of the drive motor 8. The lower end of the driving wheel 81 is connected to the driven wheel 82 mounted on the outer wall of the rotating drum 4 via the transmission belt 83, so that the drive motor 8 drives the rotating drum 4 to rotate. As the rotating drum 4 rotates slowly, the conductive slurry flows downward and passes through each magnetic rod 5 in sequence, thereby increasing the contact area and ensuring the efficiency of removing iron impurities.

[0028] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A composite conductive slurry impurity removal device, comprising a support (1), a storage tank (2) disposed at the upper end of the support, and a discharge pipe (21) disposed at the bottom end of the storage tank (2); characterized in that, The lower end of the support is inclined downwards and equipped with a cleaning component, which includes a rotating drum (4), a magnetic rod (5), and a driving device. The rotating drum (4) is inclined and has an inlet pipe seat (6) rotatably connected to the upper end of the rotating drum (4). The inlet pipe seat (6) is provided with a connecting pipe (61) and is used to connect and fix it to the discharge pipe (21). The lower end of the rotating drum (4) is rotatably connected to an outlet pipe seat (7). The outlet pipe seat (7) is connected and fixed to the support (1) by a hoisting frame (72). One end of the outlet pipe seat (7) is open and guides the conductive paste. The material is discharged into the receiving hopper (3); the rotating drum (4) is driven to rotate by a driving device set on the support (1); a number of receiving grooves (41) are evenly distributed along the circumference of the inner wall of the rotating drum (4), each receiving groove (41) is arranged along the axial direction of the rotating drum (4), and a magnetic rod (5) is embedded in each receiving groove (41). The magnetic rod (5) is limited by the receiving groove (41) and the side wall of the magnetic rod (5) protrudes out of the inner wall of the rotating drum (4), and the lower end of the magnetic rod (5) is pressed and limited by the positioning ring (43) set at the lower end of the rotating drum (4).

2. The composite conductive slurry impurity removal device as described in claim 1, characterized in that, The driving device includes a drive motor (8), a drive wheel (81), a driven wheel (82), and a transmission belt (83). The drive motor (8) is mounted obliquely on the bottom of the bracket (1) via a support. The drive wheel (81) is provided on the output shaft of the drive motor (8). The lower end of the drive wheel (81) is connected to the driven wheel (82) provided on the outer wall of the rotating drum (4) via the transmission belt (83), so that the drive motor (8) drives the rotating drum (4) to rotate.

3. The composite conductive slurry impurity removal device as described in claim 1, characterized in that, The size and shape of the magnetic rod (5) are adapted to the size and shape of the receiving groove (41). The two sides of the receiving groove (41) are attached to the two sides of the magnetic rod (5) and limit the magnetic rod (5). The lower end of the magnetic rod (5) is supported and positioned by the positioning ring (43), and the upper end of the magnetic rod (5) is abutted against one end of the receiving groove (41).

4. The composite conductive paste impurity removal device as described in claim 3, characterized in that, A stepped groove (42) is formed on the inner wall of the lower end of the rotating drum (4). The positioning ring (43) is threaded onto the stepped groove (42). The inner wall of the positioning ring (43) is flush with the inner wall of the rotating drum (4), so that one end of the positioning ring (43) presses and positions each magnetic rod (5).

5. The composite conductive slurry impurity removal device as described in claim 1, characterized in that, The inlet pipe seat (6) has a protruding insertion pipe at one end. The insertion pipe is embedded in the upper end of the rotating drum (4), and the outer wall of the insertion pipe is rotatably connected to the inner wall of the rotating drum (4) through a bearing.

6. The composite conductive slurry impurity removal device as described in claim 1, characterized in that, One end of the outlet pipe seat (7) is provided with a connecting sleeve (71), which is sleeved on the outer wall of the rotating drum (4), and the inner wall of the connecting sleeve (71) is rotatably connected to the outer wall of the rotating drum (4) through a bearing.

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