Ferromagnetic Substance Collection Device for the Environment of Lithium Battery Cathode Material Workshop

Abstract

The invention discloses a ferromagnetic material collection device for a lithium battery positive electrode material workshop environment, comprising: an opening is opened on the box wall of a collection box; a collection mechanism is installed in the collection box, the collection mechanism comprises a magnetic attraction plate group that can move relative to the opening, when the magnetic attraction plate group moves to the opening, the magnetic attraction plate group is used to cooperate with the opening to form a capping state; the air suction mechanism comprises a fan and a first air duct plate, the first air duct plate is installed on the outside of the opening, an air duct is formed between the first air duct plate and the magnetic attraction plate group in the capping state, and the fan is installed at one end of the air duct; a weighing mechanism is installed in the collection box; and a magnetic attraction mechanism is installed in the collection box; the magnetic attraction plate group is used to cooperate with the air suction mechanism to cleverly form an air duct to increase wind pressure; the magnetic attraction plate group is used as a part of the air duct, and the ferromagnetic objects are fully separated from the air under the magnetic attraction of the magnetic attraction plate group; the overall structure has high detection accuracy for ferromagnetic objects in the air.

Description

Technical Field

[0001] The present invention relates to a detection device for the cathode material of a lithium battery, and particularly to a ferromagnetic material collection device for the environment of a lithium battery cathode material workshop. Background Art

[0002] In the existing production of lithium battery cathode materials, due to factors such as environmental equipment, the ferromagnetic material content of the lithium battery cathode materials exceeds the standard. If these cathode materials are applied to lithium batteries, it will have a serious impact on the safety and life of the lithium batteries.

[0003] The existing methods for detecting dust in the workshop are mainly photoelectric methods. Although this method can detect the approximate amount of dust, the detection accuracy is low and cannot meet the accuracy requirements for ferromagnetic material detection of battery-grade cathode materials. Therefore, it is urgent to develop a device that can accurately detect the ferromagnetic material content in the environment of the cathode material workshop. Summary of the Invention

[0004] The present invention aims to at least solve one of the above technical problems in the related art to some extent. For this purpose, the present invention provides a ferromagnetic material collection device for the environment of a lithium battery cathode material workshop.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] The technical solution of the ferromagnetic material collection device for the environment of a lithium battery cathode material workshop of the present invention is as follows, including:

[0007] A collection box, an opening is provided on the box wall of the collection box;

[0008] A collection mechanism, installed in the collection box, the collection mechanism includes a magnetic attraction plate group that can move relative to the opening. When the magnetic attraction plate group moves to the opening, the magnetic attraction plate group is used to cooperate with the opening to form a sealed state;

[0009] An air suction mechanism, including a fan and a first air duct plate. The first air duct plate is installed outside the opening. A wind duct is formed between the first air duct plate and the magnetic attraction plate group in the sealed state. The fan is installed at one end of the wind duct;

[0010] A weighing mechanism, installed in the collection box; and

[0011] A magnetic attraction mechanism, installed in the collection box, the magnetic attraction mechanism is used to suck and transfer the ferromagnetic material attached to the surface of the magnetic attraction plate group to the weighing mechanism.

[0012] The ferromagnetic material collection device for lithium battery positive electrode material workshop environment according to the present invention has at least the following beneficial effects: the magnetic plate group is used in conjunction with the air suction mechanism to cleverly form an air duct to increase wind pressure; the magnetic plate group serves as a part of the air duct, and the ferromagnetic objects are fully separated from the air under the magnetic attraction of the magnetic plate group; the overall structure has high detection accuracy for ferromagnetic objects in the air.

[0013] Furthermore, the opening is rectangular and is opened on the longitudinal box wall of the collecting box and extends along the height direction of the collecting box. The cross-section of the first air duct plate is U-shaped. The first air duct plate is vertically installed on the collecting box. A downwardly open air inlet is formed between the lower end of the first air duct plate and the outer side wall of the collecting box. The fan is installed at the upper end of the first air duct plate.

[0014] Furthermore, the side surface of the first air duct plate facing the air duct is a wavy surface.

[0015] Furthermore, the magnetic plate group includes a bracket, a permanent magnet plate, a second non-magnetic air duct plate and an operating cylinder; the second air duct plate and the permanent magnet plate are installed on the bracket; under the driving action of the operating cylinder, the permanent magnet plate and the second air duct plate can move relative to each other towards or away from each other; the magnetic plate group is covered at the opening by the second air duct plate, and the second air duct plate cooperates with the first air duct plate to form the air duct.

[0016] Furthermore, the collecting mechanism also includes a first driving cylinder, and the lower end of the magnetic plate group is hinged in the collecting box; the first driving cylinder drives the magnetic plate group to swing in the collecting box, and the first driving cylinder drives the magnetic plate group to cover the opening; or the first driving cylinder drives the magnetic plate group to leave the opening, and makes the surface of the magnetic plate group that adsorbs ferromagnetic objects face upward in the collecting box, and the magnetic mechanism moves above the magnetic plate group.

[0017] Furthermore, the magnetic attraction mechanism includes a second driving cylinder, a driving slide rail and a first electromagnetic head. The driving slide rail is horizontally installed in the collection box, the second driving cylinder is installed on the driving slide rail and can move laterally, and the first electromagnetic head is installed on the telescopic shaft of the second driving cylinder and can be raised and lowered.

[0018] Furthermore, the weighing mechanism includes a weighing module, a tray and a second electromagnetic head, the second electromagnetic head is installed on the tray, and the weighing module can weigh the tray.

[0019] Furthermore, a filter is installed at the air outlet of the fan.

[0020] Further, it further includes a recycling box, which is detachably installed in the collection box. A magnet sheet is provided on the recycling box, and the magnetic attraction mechanism can move above the recycling box.

[0021] Further, a display is installed on the collection box. The display is connected to the weighing mechanism and the fan through a control module, and the display at least displays the weighing data of the weighing mechanism and the operation data of the fan.

[0022] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0023] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the implementation content in conjunction with the following drawings, where:

[0024] Figure 1 is a schematic diagram of the external structure of the present invention;

[0025] Figure 2 is a schematic diagram of the internal state of the present invention in the air suction state;

[0026] Figure 3 is a schematic diagram of the internal state of the present invention in the ferromagnetic object transfer state;

[0027] Figure 4 is a schematic diagram of the structure of the collection mechanism of the present invention;

[0028] Figure 5 is a schematic diagram of the structure of the air suction mechanism of the present invention.

[0029] Reference Signs:

[0030] Collection box 100; Opening 110; Display 120;

[0031] Collection mechanism 200; Magnetic attraction plate group 210; Bracket 211; Permanent magnet plate 212; Second air duct plate 213; Operating cylinder 214; First driving cylinder 220;

[0032] Air suction mechanism 300; Fan 310; First air duct plate 320; Wavy surface 321; Air duct 330; Air inlet 331; Air outlet 332;

[0033] Weighing mechanism 400; Weighing module 410; Tray 420;

[0034] Magnetic attraction mechanism 500; Second driving cylinder 510; Driving slide rail 520; First electromagnetic head 530;

[0035] Recycling box 600. Detailed Embodiments

[0036] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0037] The present invention relates to a ferromagnetic material collection device, which is mainly used to be placed in the environment of a lithium battery cathode material workshop to detect the content of ferromagnetic materials in the air of the workshop environment. The ferromagnetic material collection device includes a collection box 100, a collection mechanism 200, an air suction mechanism 300, a weighing mechanism 400, and a magnetic attraction mechanism 500.

[0038] As Figure 1 and Figure 3 shown, the collection box 100 may but is not limited to having a rectangular box-like structure. An opening 110 is formed on one side wall of the collection box 100, and the opening 110 may be formed in a rectangle along the height direction of the collection box 100. As Figure 2 and Figure 3 shown, the collection mechanism 200 is installed inside the collection box 100. The collection mechanism 200 includes a magnetic attraction plate group 210 having a magnetic attraction function. The magnetic attraction plate group 210 may achieve magnetic attraction by using an electromagnet method or a permanent magnet method. The magnetic attraction plate group 210 is movably installed inside the collection box 100, and the magnetic attraction plate group 210 can move towards or away from the direction of the opening 110. When the magnetic attraction plate group 210 moves to the opening 110, the magnetic attraction plate group 210 can cover the opening 110. At this time, the magnetic attraction plate group 210 and the opening 110 cooperate to form a closed state. The air suction mechanism 300 includes a fan 310 and a first air duct plate 320. The first air duct plate 320 is installed outside the collection box 100 and covers the opening 110. The first air duct plate 320 may be in a U-shaped track shape. The first air duct plate 320 is vertically covered on the opening 110, and the dimensions of the first air duct plate 320 and the opening 110 in the height direction are matched. Air inlet and outlet openings are formed between the upper and lower ends of the first air duct plate 320 and the box wall of the collection box 100. The air inlet and outlet openings may also be formed at any position directly on the first air duct plate 320. As Figure 2As shown in the figure, when the magnetic attraction plate group 210 moves to the closed state, an air duct 330 with openings at both the upper and lower ends is formed around between the magnetic attraction plate group 210 and the first air duct plate 320. The air inlets and outlets at both the upper and lower ends of the first air duct plate 320 are the air inlets and outlets of the air duct 330. The fan 310 is installed at the upper end of the air duct 330, and the lower end of the air duct 330 serves as the air inlet 331. When the fan 310 is started, the air in the environment is drawn upward through the lower end of the air duct 330. When the air flow passes through the air duct 330, under the magnetic attraction of the magnetic attraction plate group 210, the ferromagnetic substances in the air flow are adsorbed on the surface of the magnetic attraction plate group 210 facing the air duct 330, and the air flow then flows through the fan 310 from the upper end of the air duct 330 and is discharged. During the flow of the air flow in the air duct 330, the air flow is in full contact with the side surface of the magnetic attraction plate group 210 facing the air duct 330. The weighing mechanism 400 and the magnetic attraction mechanism 500 are installed in the collection box 100. The magnetic attraction mechanism 500 can move in the collection box 100, and the magnetic attraction mechanism 500 adopts the magnetic attraction method of an electromagnet. As Figure 3 shown in the figure, when the fan 310 stops working after starting for a certain period of time, the magnetic attraction plate group 210 moves away from the opening 110 of the collection box 100 and moves into the collection box 100. The surface of the magnetic attraction plate group 210 adsorbed with ferromagnetic substances faces the magnetic attraction mechanism 500. The magnetic attraction mechanism 500 moves to the adsorption surface of the magnetic attraction plate group 210, the magnetic attraction mechanism 500 sucks the ferromagnetic substances on the surface of the magnetic attraction plate group 210, and then moves above the weighing mechanism 400. The magnetic attraction mechanism 500 is powered off to eliminate the electromagnetic effect, and the ferromagnetic substances fall into the weighing mechanism 400 for weighing. Before weighing, the weighing mechanism 400 automatically corrects and zeros. Thereafter, according to parameters such as the running time and air volume of the fan 310, combined with the weighing result, the content of ferromagnetic substances in the air of the workshop environment is obtained, and the workshop environment is improved according to the content of magnetic substances in the environment. In the ferromagnetic substance collection device of the present invention, the magnetic attraction plate group 210 is used in cooperation with the air suction mechanism 300 to cleverly form the air duct 330, increasing the air pressure; the magnetic attraction plate group 210 is used as a part of the air duct 330, and the ferromagnetic substances are fully separated from the air under the magnetic attraction of the magnetic attraction plate group 210. Some dust in the air flow will adhere to the surface of the magnetic attraction plate group 210, and then the magnetic attraction mechanism 500 is used to transfer and weigh the ferromagnetic substances on the magnetic attraction plate group 210, improving the detection accuracy of ferromagnetic substances in the air.

[0039] As Figure 3 shown in the figure, the opening 110 is opened on the longitudinal box wall of the collection box 100, and this longitudinal box wall can be one of the front, rear, left, and right box walls of the collection box 100. The opening 110 is rectangular and extends along the height direction of the collection box 100. It can extend from the upper part of the box wall to the middle and lower parts of the box wall. As Figure 5As shown in the figure, the first air duct plate 320 is strip-shaped, and its cross-section is U-shaped. An air inlet 331 is formed between the lower end of the first air duct plate 320 and the box wall, and the air inlet 331 is open downward. An air outlet 332 is formed between the upper end of the first air duct plate 320 and the box wall, and the fan 310 is installed at the air outlet 332. When the air flow enters the air duct 330 from the air inlet 331 and the fan 310 stops working, the dust remaining in the air duct 330 can be discharged downward from the air inlet 331 according to its own weight or by using a tool to strike the first air duct plate 320. Further, the side surface of the first air duct plate 320 facing the air duct 330 is provided with a wavy surface 321. That is, the wavy surface 321 of the first air duct plate 320 faces the opening 110. The opening 110 is vertically opened on the collection box 100, the first air duct plate 320 is vertically installed, and the corrugations on the wavy surface 321 are distributed along the height direction of the first air duct plate 320, and the peaks and valleys of each wave are horizontally arranged. The flow direction of the air flow in the air duct 330 is perpendicular to the waves on the wavy surface 321, and the air flow forms a turbulent flow under the action of the wavy surface 321 in the air duct 330 and impacts towards the magnetic attraction plate group 210, so that the ferromagnetic substances in the air flow are fully adsorbed on the surface of the magnetic attraction plate group 210, and at the same time, under the impact of the air flow, non-ferromagnetic substances such as dust are reduced from adhering to the magnetic attraction plate group 210 for a long time, achieving a self-cleaning effect. Further, a filter screen is installed at the air outlet end of the fan 310, and after the air flow passes through the fan 310, the dust in the air flow is adsorbed by the filter screen. The filter screen is replaced after working for a certain period.

[0040] As Figure 4 shown, the magnetic attraction plate group 210 has at least two layers of plate members. One layer of plate member is a permanent magnet plate 212, and the other layer of plate body is a second air duct plate 213. The second air duct plate 213 is not magnetic, and the second air duct plate 213 can be made of materials such as plastic, rubber or metal without ferromagnetic substances. The permanent magnet plate 212 and the second air duct plate 213 are selected with a flat plate structure. The magnetic attraction plate group 210 further includes a bracket 211 and an operating cylinder 214. Both the permanent magnet plate 212 and the second air duct plate 213 are installed on the bracket 211. The large planes of the permanent magnet plate 212 and the second air duct plate 213 are parallel to each other, and the two can move relatively closer or farther away on the bracket 211. It can be that the second air duct plate 213 is fixed on the bracket 211, and the permanent magnet plate 212 is movably installed on the bracket 211 through structures such as a chute. The telescopic end of the operating cylinder 214 is connected to the permanent magnet plate 212, and the permanent magnet plate 212 is driven to move by the operating cylinder 214. As Figure 2As shown, when the magnetic attraction plate group 210 covers the opening 110, the second air duct plate 213 covers the opening 110, and the second air duct plate 213 completely closes the opening 110, cooperating with the first air duct plate 320 to form the air duct 330. The permanent magnet plate 212 faces the inside of the collection box 100, and the permanent magnet plate 212 is not in direct contact with the air flow in the air duct 330. The operating cylinder 214 drives the permanent magnet plate 212 to fit on the plane of the second air duct plate 213 facing the inside of the collection box 100. By using the magnetic attraction of the permanent magnet plate 212, the ferromagnetic substances flowing through the air duct 330 are adsorbed on the surface of the second air duct plate 213 facing the air duct 330. As Figure 3 shown, after the fan 310 stops running, the magnetic attraction plate group 210 moves away from the opening 110 and into the collection box 100. At this time, the surface of the second air duct plate 213 with adsorbed ferromagnetic substances faces upward. The magnetic attraction mechanism 500 moves above the second air duct plate 213, and the operating cylinder 214 drives the permanent magnet plate 212 away from the second air duct plate 213, reducing the magnetic attraction of the permanent magnet plate 212 on the ferromagnetic substances on the second air duct plate 213. The magnetic attraction mechanism 500 fully absorbs the ferromagnetic substances on the second air duct plate 213. The overall movement of the magnetic attraction plate group 210 in the collection box 100 can be driven by the first driving cylinder 220. Specifically, the lower end of the bracket 211 on the magnetic attraction plate group 210 is hinged to the inner wall of the collection box 100 through a rotating shaft, preferably hinged at the lower end position near the opening 110. The lower end of the first driving cylinder 220 is hinged to the bottom of the collection box 100, and the driving end of the first driving cylinder 220 is hinged to the bracket 211. By using the first driving cylinder 220 to drive the magnetic attraction plate group 210 to swing integrally in the collection box 100, the magnetic attraction plate group 210 can be quickly covered or moved away from the opening 110.

[0041] As Figure 2 and Figure 3As shown, the magnetic attraction mechanism 500 includes a second driving cylinder 510, a driving slide rail 520, and a first electromagnetic head 530. The first electromagnetic head 530 constitutes the electromagnetic structure of the magnetic attraction mechanism 500, and the driving slide rail 520 is horizontally installed in the collection box 100. Among them, the above-mentioned "horizontal" is in the horizontal direction, which is determined according to the specific relative position between the weighing mechanism 400 and the magnetic attraction plate group 210. In this embodiment, the opening 110 is opened on the longitudinal box wall on the right side of the collection box 100. Then, the magnetic attraction plate group 210 is located at the position on the right side inside the collection box 100, the weighing mechanism 400 is located on the left side of the magnetic attraction plate group 210, and the driving slide rail 520 is horizontally arranged in the left-right horizontal direction as its transverse setting direction. The second driving cylinder 510 is installed on the driving guide rail. The driving guide rail can drive the second driving cylinder 510 through cooperation with a motor by means of a lead screw, a belt, a chain, etc. The first electromagnetic head 530 is installed on the telescopic shaft of the second driving cylinder 510. When the magnetic attraction plate group 210 leaves the opening 110, the surface of the magnetic attraction plate group 210 adsorbed with ferromagnetic substances faces upward. Both the magnetic attraction plate group 210 and the weighing mechanism 400 are located below the magnetic attraction mechanism 500. The second driving cylinder 510 together with the first electromagnetic head 530 moves above the magnetic attraction plate group 210, and then the second driving cylinder 510 drives the first electromagnetic head 530 to descend close to the magnetic attraction plate group 210. The first electromagnetic head 530 is energized to generate a magnetic force to adsorb the ferromagnetic substances on the magnetic attraction plate group 210. And under the movement of the driving guide rail, the first electromagnetic head 530 moves horizontally above the magnetic attraction plate group 210 to fully adsorb the ferromagnetic substances on the magnetic attraction plate group 210, and then moves above the weighing mechanism 400. The first electromagnetic head 530 is powered off to demagnetize, and the ferromagnetic substances are separated from the first electromagnetic head 530 and fall into the weighing mechanism 400.

[0042] Specifically, the weighing mechanism 400 includes a weighing module 410 and a tray 420. A second electromagnetic head (not shown in the figure) can be installed on the tray 420. The weighing module 410 supports the second electromagnetic head and the tray 420. When the magnetic attraction mechanism 500 moves above the weighing mechanism 400, the first electromagnetic head 530 of the magnetic attraction mechanism 500 is powered off, and the second electromagnetic head of the weighing mechanism 400 is powered on. Under the magnetic attraction of the second electromagnetic head, the ferromagnetic substances on the magnetic attraction mechanism 500 quickly and stably fall onto the tray 420. Before weighing, the second electromagnetic head is powered off, and the weighing module 410 obtains the weight difference of the ferromagnetic substances before and after falling onto the tray 420.

[0043] Such as Figure 2As shown, a recycling box 600 is provided on the collection box 100. The recycling box 600 is located on the side wall of the collection box 100 opposite to the suction mechanism 300. The recycling box 600 can be placed into the collection box 100 through the box wall of the collection box 100. A magnet sheet (not shown in the figure) is installed on the recycling box 600. After the weighing mechanism 400 completes weighing, the magnetic attraction mechanism 500 re-absorbs the ferromagnetic objects in the weighing mechanism 400, and then the magnetic attraction mechanism 500 moves above the recycling box 600 to drop the ferromagnetic objects into the recycling box 600. The recycling box 600 enhances the effect of the ferromagnetic objects detaching from the magnetic attraction mechanism 500 through the ferromagnetic sheet. After a certain period of time, the recycling box 600 is taken out for cleaning.

[0044] Furthermore, as Figure 1 shown, a display 120 is installed on the collection box 100. There is a control module on the display 120, and the control module is connected to the blower 310 and the weighing mechanism 400. The weighing data of the weighing mechanism 400 and the operating data of the blower 310 such as the air extraction time, air speed, air volume, etc. are displayed through the display 120.

[0045] In the description of this specification, "description" means that the specific features, structures, materials, or characteristics described in connection with this embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A ferromagnetic material collection device for the environment of a lithium battery cathode material workshop, characterized in that, it includes: A collection box (100) with an opening (110) provided on the box wall of the collection box (100); A collection mechanism (200) installed inside the collection box (100). The collection mechanism (200) includes a magnetic attraction plate group (210) that can move relative to the opening (110). When the magnetic attraction plate group (210) moves to the opening (110), the magnetic attraction plate group (210) is used to cooperate with the opening (110) to form a sealed state; An air suction mechanism (300) including a fan (310) and a first air duct plate (320). The first air duct plate (320) is installed outside the opening (110). A air duct (330) is formed between the first air duct plate (320) and the magnetic attraction plate group (210) in the sealed state, and the fan (310) is installed at one end of the air duct (330); A weighing mechanism (400) installed inside the collection box (100); and A magnetic attraction mechanism (500) installed inside the collection box (100). The magnetic attraction mechanism (500) is used to suck the ferromagnetic materials attached to the surface of the magnetic attraction plate group (210) and transfer them to the weighing mechanism (400).

2. The ferromagnetic material collection device for the environment of a lithium battery cathode material workshop according to claim 1, characterized in that: The opening (110) is rectangular and is provided on the longitudinal box wall of the collection box (100) and extends along the height direction of the collection box (100). The cross-section of the first air duct plate (320) is U-shaped. The first air duct plate (320) is vertically installed on the collection box (100). An air inlet (331) with a downward opening is formed between the lower end of the first air duct plate (320) and the outer side wall of the collection box (100), and the fan (310) is installed at the upper end of the first air duct plate (320).

3. The ferromagnetic material collection device for the environment of a lithium battery cathode material workshop according to claim 1 or 2, characterized in that: The side surface of the first air duct plate (320) facing the air duct (330) is a wavy surface (321).

4. The ferromagnetic material collection device for the environment of a lithium battery cathode material workshop according to claim 1, characterized in that: The magnetic attraction plate group (210) includes a bracket (211), a permanent magnet plate (212), a non-magnetic second air duct plate (213) and an operating cylinder (214); the second air duct plate (213) and the permanent magnet plate (212) are installed on the bracket (211); under the driving action of the operating cylinder (214), the permanent magnet plate (212) and the second air duct plate (213) can move relatively closer to or away from each other; the magnetic attraction plate group (210) covers the opening (110) through the second air duct plate (213), and the second air duct plate (213) cooperates with the first air duct plate (320) to form the air duct (330).

5. The ferromagnetic material collection device for the environment of the lithium battery cathode material workshop according to claim 1, characterized in that: The collection mechanism (200) further includes a first driving cylinder (220), and the lower end of the magnetic attraction plate group (210) is hinged in the collection box (100); the first driving cylinder (220) drives the magnetic attraction plate group (210) to swing in the collection box (100), and the first driving cylinder (220) drives the magnetic attraction plate group (210) to cover the opening (110); or the first driving cylinder (220) drives the magnetic attraction plate group (210) to leave the opening (110), and makes the surface of the magnetic attraction plate group (210) adsorbing ferromagnetic materials face upward in the collection box (100), and the magnetic attraction mechanism (500) moves above the magnetic attraction plate group (210).

6. The ferromagnetic material collection device for the environment of the lithium battery cathode material workshop according to claim 1, characterized in that: The magnetic attraction mechanism (500) includes a second driving cylinder (510), a driving slide rail (520) and a first electromagnetic head (530). The driving slide rail (520) is horizontally installed in the collection box (100), the second driving cylinder (510) is installed on the driving slide rail (520) and can move horizontally, and the first electromagnetic head (530) is installed on the telescopic shaft of the second driving cylinder (510) and can move up and down.

7. The ferromagnetic material collection device for the environment of the lithium battery cathode material workshop according to claim 1, characterized in that: The weighing mechanism (400) includes a weighing module (410), a tray (420) and a second electromagnetic head. The second electromagnetic head is installed on the tray (420), and the weighing module (410) can weigh the tray (420).

8. The ferromagnetic material collection device for the environment of the lithium battery cathode material workshop according to claim 1, characterized in that: A filter screen is installed at the air outlet end of the fan (310).

9. The ferromagnetic material collection device for the environment of the lithium battery cathode material workshop according to claim 1, characterized in that: It further includes a recycling box (600). The recycling box (600) is detachably installed in the collection box (100). The recycling box (600) is provided with magnet sheets, and the magnetic attraction mechanism (500) can move above the recycling box (600).

10. The ferromagnetic material collection device for the environment of the lithium battery cathode material workshop according to claim 1, characterized in that: A display (120) is installed on the collection box (100). The display (120) is connected to the weighing mechanism (400) and the fan (310) through a control module. The display (120) at least displays the weighing data of the weighing mechanism (400) and the operation data of the fan (310).

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