Dry-type electromagnet iron remover

The dry electromagnet iron separator solves the problem of incomplete removal of iron impurities from battery raw materials by combining electromagnets and vibrating screens, achieving efficient iron removal and extending battery life.

CN223475218UActive Publication Date: 2025-10-28DAYOU NEW MATERIALS (JIANGSU) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422798963.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-10-28
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

In the existing technology, the iron impurities in the battery raw materials are not removed thoroughly, resulting in a high risk of battery spontaneous combustion and a shortened lifespan.

Method used

A dry electromagnetic iron remover is used, which uses electromagnets and vibration motors in conjunction with ferrite stainless steel screens to remove iron impurities through magnetic adsorption and vibration screening. The discharge of impurities is controlled by a reversing plate and an electric telescopic rod. Combined with oil pump cooling and air hammer cleaning, the iron removal efficiency is improved.

Benefits of technology

Efficiently remove iron impurities in battery raw materials, reduce the risk of spontaneous combustion, extend battery life, and improve charge and discharge performance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223475218U_ABST
    Figure CN223475218U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of iron removers, in particular to a dry type electromagnet iron remover which comprises a shell, a plurality of supporting legs are vertically arranged on the lower side of the shell, a magnetic cavity is formed in the shell, a sealing pipe is vertically arranged in the magnetic cavity, and the upper end and the lower end of the sealing pipe are communicated with the upper side and the lower side of the shell respectively. An electromagnet is arranged around the sealing pipe in the magnetic cavity, a screen pipe is installed in the sealing pipe, a plurality of ferritic stainless steel screens are installed in the screen pipe, the upper end of the screen pipe is arranged on the upper side of the shell, and the lower end of the screen pipe is arranged on the lower side of the shell; a vibration motor is mounted on the lower side of the shell; a slag discharging pipe communicated with the screen pipe is obliquely and downwards arranged at the position, close to the lower end, of the screen pipe and below the shell, and a reversing plate used for controlling the upper portion of the screen pipe to be communicated with the lower end of the screen pipe or communicated with the slag discharging pipe is arranged at the position, connected with the slag discharging pipe, of the inner wall of the screen pipe. The problem that in the prior art, iron impurities in battery raw materials cannot be removed thoroughly is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of iron removal technology, specifically to a dry electromagnet iron remover. Background Technology

[0002] With the rapid development of technology, products closely related to batteries, such as automobiles, electric vehicles, and mobile phones, have become an indispensable part of people's lives. However, these products frequently expose some serious problems during actual use, among which spontaneous combustion and excessively short battery life are the most prominent, bringing huge safety hazards and economic losses to users.

[0003] In-depth investigation revealed that the root cause of these problems is largely related to the quality of battery raw materials. Excessive iron impurities are a key factor. During normal battery operation, these iron impurities act like hidden time bombs. When the battery's internal circuitry operates under complex conditions, these iron impurities interfere with the normal current transmission path, causing cross-current within the battery. Furthermore, due to the conductivity of iron impurities, they can inadvertently create abnormal conductive paths between the positive and negative terminals, leading to short circuits. Once a short circuit occurs, it's like triggering a disaster inside the battery, instantly generating a large amount of heat and potentially causing spontaneous combustion.

[0004] Furthermore, the presence of iron impurities can have a serious negative impact on battery life. During battery charge-discharge cycles, iron impurities participate in unnecessary chemical reactions, disrupting the original chemical balance within the battery, accelerating the wear and tear of battery electrode materials and the decomposition of the electrolyte. This causes a rapid decline in battery capacity and a drastic deterioration in charge-discharge performance. A battery that could normally be used for several years may lose its functionality in just a few months or even less.

[0005] Faced with these problems, the market demand has become particularly urgent, with a pressing need for a product that can effectively solve the problem of iron impurities in batteries. Utility Model Content

[0006] The purpose of this invention is to provide a dry electromagnet iron remover to solve the problem of incomplete removal of iron impurities from battery raw materials in the prior art.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A dry electromagnet iron separator includes a housing with several vertically arranged legs on the lower side. A magnetic cavity is located inside the housing, and a sealing tube is vertically arranged within the magnetic cavity. The upper and lower ends of the sealing tube are connected to the upper and lower sides of the housing, respectively. An electromagnet is arranged around the sealing tube within the magnetic cavity. A screen tube is installed inside the sealing tube, and several ferritic stainless steel screens are installed inside the screen tube. The upper end of the screen tube is located on the upper side of the housing, and the lower end is located on the lower side of the housing. A vibrating motor is installed on the lower side of the housing. A slag discharge pipe, connected to the screen tube, is inclined downwards below the housing near the lower end of the screen tube. A reversing plate is provided on the inner wall of the screen tube at the connection point with the slag discharge pipe to control the connection between the upper part of the screen tube and the lower end of the screen tube or the slag discharge pipe.

[0009] A further technical solution is that a rotating shaft is horizontally installed on the lower side of the connection between the screen tube and the slag discharge pipe. A rotating sleeve is rotatably sleeved on the outer wall of the rotating shaft. The lower side of the reversing plate is connected to the outer wall of the rotating sleeve. An electric telescopic rod is installed on the outer wall of the screen tube on the side away from the slag discharge pipe. The output shaft of the electric telescopic rod passes into the screen tube and is connected to the side of the reversing plate away from the slag discharge pipe. When the electric telescopic rod extends, the reversing plate fits and seals the connection between the screen tube and the slag discharge pipe, and the upper part and the lower end of the screen tube are connected. When the electric telescopic rod shortens, the edge of the reversing plate fits against the inner wall of the screen tube, and the upper part of the screen tube is connected to the slag discharge pipe.

[0010] A further technical solution is to have a connecting plate vertically installed on the side of the reversing plate away from the slag discharge pipe. The connecting plate even has a long slot that runs through both sides. The telescopic end of the electric telescopic rod is movably connected to the long slot through a connecting shaft.

[0011] A further technical solution is to provide a flow guide ring on the inner wall of the screen tube above the reversing plate, with the upper side of the flow guide ring being a sloping surface that slopes downward from the inner wall of the screen tube toward the middle of the screen tube.

[0012] A further technical solution is to install the electric telescopic rod on the outer wall of the screen tube via a mounting bracket.

[0013] A further technical solution is that an oil pump and an oil tank are installed on the side of the outer casing. The oil outlet of the oil tank is connected to the oil inlet of the oil pump through a first connecting pipe. The oil outlet of the oil pump is connected to the magnetic cavity through a second connecting pipe. The oil inlet of the oil tank is connected to the magnetic cavity through a third connecting pipe.

[0014] A further technical solution is to install a cooling pipe inside the fuel tank, with both ends of the cooling pipe connected to the surfaces of both ends of the fuel tank, and a cooling fan installed at one end of the fuel tank at the position corresponding to the cooling pipe; multiple cooling pipes are configured.

[0015] A further technical solution is that an air hammer is installed on the upper side of the outer shell, and an impact ring is fitted on the outer wall of the screen tube on the upper side of the outer shell, with the output shaft of the air hammer aligned with the impact ring.

[0016] Compared with the prior art, this utility model has at least one of the following beneficial effects: 1. When the iron separator removes iron impurities from the raw materials, the reversing plate is first adjusted to connect the upper and lower ends of the screen tube, and the electromagnet and vibrating motor are started. After the raw materials enter the screen tube from the upper end, they pass through several ferritic stainless steel screens in sequence. Because the ferritic stainless steel screens generate magnetism after the electromagnet is started, the iron impurities will be attracted to the ferritic stainless steel screens, while the raw materials will be discharged from the lower end of the screen tube after passing through all the ferritic stainless steel screens. Furthermore, the vibrating motor facilitates the removal of iron impurities from the raw materials. During operation, the screen tube and ferritic stainless steel screen vibrate to prevent raw materials from accumulating on the ferritic stainless steel screen. This removal method can efficiently remove iron impurities from the raw materials. 2. When too many iron impurities are adsorbed on the ferritic stainless steel screen, the conveying of raw materials toward the screen tube is stopped, and the upper part of the screen tube and the slag discharge pipe are connected by adjusting the reversing plate. Then, the electromagnet is turned off. After the electromagnet is turned off, the ferritic stainless steel screen loses its magnetism, and the iron impurities adsorbed on the ferritic stainless steel screen fall off the ferritic stainless steel screen and are discharged from the slag discharge pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a dry electromagnet iron separator according to the present invention.

[0018] Figure 2 This is a side cross-sectional schematic diagram of a dry electromagnet iron remover according to the present invention.

[0019] Figure 3 This is a schematic cross-sectional view of the lower part of the screen tube of a dry electromagnet iron separator according to this utility model.

[0020] Figure 4 This is a schematic cross-sectional view of the oil tank of a dry electromagnet iron separator according to this utility model.

[0021] Icons: 1-Outer shell, 2-Foot, 3-Magnetic cavity, 4-Sealing tube, 5-Electromagnet, 6-Screen tube, 7-Ferritic stainless steel screen, 8-Vibrating motor, 9-Slag discharge pipe, 10-Reversing plate, 11-Rotating shaft, 12-Rotating sleeve, 13-Electric telescopic rod, 14-Connecting piece, 15-Elongated hole, 16-Connecting shaft, 17-Guide ring, 18-Inclined surface, 19-Mounting bracket, 20-Oil pump, 21-Oil tank, 22-First connecting pipe, 23-Second connecting pipe, 24-Third connecting pipe, 25-Heat pipe, 26-Heat fan, 27-Air hammer, 28-Impact ring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Figures 1 to 4 The following is an embodiment of the present invention.

[0024] Example:

[0025] A dry electromagnet iron separator includes a housing 1, with several vertically arranged legs 2 on the lower side of the housing 1. A magnetic cavity 3 is provided inside the housing 1, and a sealing tube 4 is vertically arranged inside the magnetic cavity 3. The upper and lower ends of the sealing tube 4 are respectively connected to the upper and lower sides of the housing 1. An electromagnet 5 is arranged around the sealing tube 4 inside the magnetic cavity 3. A screen tube 6 is installed inside the sealing tube 4, and several ferritic stainless steel screens 7 are installed inside the screen tube 6. The upper end of the screen tube 6 is located on the upper side of the housing 1, and the lower end is located on the lower side of the housing 1. A vibration motor 8 is installed on the lower side of the housing 1. A slag discharge pipe 9 is inclined downward below the housing 1 near the lower end of the screen tube 6 and is connected to the screen tube 6. A reversing plate 10 is provided on the inner wall of the screen tube 6 at the connection with the slag discharge pipe 9 to control the upper part of the screen tube 6 to connect to the lower end of the screen tube 6 or to the slag discharge pipe 9. When the iron separator removes iron impurities from the raw materials, the reversing plate 10 is first adjusted to ensure that the upper and lower ends of the screen tube 6 are connected, and the electromagnet 5 and the vibrating motor 8 are started. After the raw materials enter the screen tube 6 from the upper end, they pass through several ferritic stainless steel screens 7 in sequence. After the electromagnet 5 is started, the ferritic stainless steel screens 7 will generate magnetism, and the iron impurities will be attracted to the ferritic stainless steel screens 7. The raw materials will be discharged from the lower end of the screen tube 6 after passing through all the ferritic stainless steel screens 7. The vibrating motor 8 helps to prevent the raw materials from accumulating on the ferritic stainless steel screens 7 by vibrating the screen tube 6 and the ferritic stainless steel screens 7 during operation. This removal method can efficiently remove iron impurities from the raw materials. When too much iron impurity is adsorbed on the ferritic stainless steel screen 7, the conveying of raw materials toward the screen tube 6 is stopped, and the upper part of the screen tube 6 and the slag discharge pipe 9 are connected by adjusting the reversing plate 10. Then, the electromagnet 5 is turned off. After the electromagnet 5 is turned off, the ferritic stainless steel screen 7 loses its magnetism, and the iron impurities adsorbed on the ferritic stainless steel screen 7 fall off the ferritic stainless steel screen 7 and are discharged from the slag discharge pipe 9.

[0026] A rotating shaft 11 is horizontally installed on the lower side of the connection between the screen tube 6 and the slag discharge pipe 9. A rotating sleeve 12 is rotatably sleeved on the outer wall of the rotating shaft 11. The lower side of the reversing plate 10 is connected to the outer wall of the rotating sleeve 12. An electric telescopic rod 13 is installed on the outer wall of the screen tube 6 on the side away from the slag discharge pipe 9. The output shaft of the electric telescopic rod 13 passes into the screen tube 6 and is connected to the side of the reversing plate 10 away from the slag discharge pipe 9. When the electric telescopic rod 13 extends, the reversing plate 10 closes and seals the connection between the screen tube 6 and the slag discharge pipe 9, and the upper part and the lower end of the screen tube 6 are connected. When the electric telescopic rod 13 shortens, the edge of the reversing plate 10 closes to the inner wall of the screen tube 6, and the upper part of the screen tube 6 is connected to the slag discharge pipe 9. By setting the rotating shaft 11 and the rotating sleeve 12, the reversing plate 10 can be swung to adjust the connection between the upper part and the lower end of the screen tube 6 or between the upper part of the screen tube 6 and the slag discharge pipe 9. By setting up the electric telescopic rod 13, the position of the reversing plate 10 can be well controlled.

[0027] A connecting piece 14 is vertically arranged on the side of the reversing plate 10 away from the slag discharge pipe 9. The connecting piece 14 even has an elongated hole 15 that runs through both sides. The telescopic end of the electric telescopic rod 13 is movably connected to the elongated hole 15 via a connecting shaft 16. By setting the connecting piece 14 and the elongated hole 15, when the telescopic end of the electric telescopic rod 13 moves, it drives the connecting shaft 16 to push in the elongated hole 15, causing the reversing plate 10 to rotate around the rotating shaft 11, thereby adjusting the position of the reversing plate 10. Furthermore, there is sufficient space in the elongated hole 15 to facilitate the movement of the reversing plate 10 by the connecting shaft 16.

[0028] A guide ring 17 is provided around the inner wall of the screen tube 6 above the reversing plate 10. The upper side of the guide ring 17 is a sloping surface 18 that slopes downward from the inner wall of the screen tube 6 toward the center of the screen tube 6. By providing the guide ring 17, when raw materials or iron impurities fall, the guide ring 17 can help the raw materials or iron impurities to gather toward the center of the screen tube 6 after passing through the guide ring 17, preventing them from falling against the inner wall of the screen tube 6 and getting stuck at the edge of the reversing plate 10.

[0029] The electric telescopic rod 13 is mounted on the outer wall of the screen tube 6 via a mounting bracket 19. The mounting bracket 19 facilitates the fixing of the electric telescopic rod 13.

[0030] An oil pump 20 and an oil tank 21 are installed on the side of the outer casing 1. The oil outlet of the oil tank 21 is connected to the oil inlet of the oil pump 20 through a first connecting pipe 22. The oil outlet of the oil pump 20 is connected to the magnetic cavity 3 through a second connecting pipe 23. The oil inlet of the oil tank 21 is connected to the magnetic cavity 3 through a third connecting pipe 24. After the electromagnet 5 has been working for a long time, it will gradually heat up. After heating up, the electromagnet 5 will not only experience a decrease in its own performance, but it will also cause the screen tube 6 to heat up, thereby affecting the temperature of the raw materials. Therefore, the cooling oil in the oil tank 21 is pumped into the magnetic cavity 3 by the oil pump 20 to cool down the electromagnet 5. The cooled oil that has absorbed the heat returns to the oil tank 21.

[0031] The fuel tank 21 is equipped with cooling pipes 25, with both ends of the cooling pipes 25 connected to the surfaces of both ends of the fuel tank 21. A cooling fan 26 is installed at one end of the fuel tank 21 at the position corresponding to the cooling pipe 25. Multiple cooling pipes 25 are provided. By setting up cooling pipes 25, the surface area of ​​the entire fuel tank can be increased by utilizing the inner wall of the cooling pipes 25. Furthermore, the cooling fan 26 drives air to flow at high speed along the inner wall of the cooling pipes 25, which can remove the temperature of the inner wall of the cooling pipes 25, thereby reducing the temperature of the cooling oil in the fuel tank 21.

[0032] An air hammer 27 is installed on the upper side of the outer casing 1, and an impact ring 28 is fitted on the outer wall of the screen tube 6 on the upper side of the outer casing 1. The output shaft of the air hammer 27 is aligned with the impact ring 28. When cleaning iron impurities on the ferritic stainless steel screen 7, by activating the air hammer 27, the output shaft of the air hammer 27 strikes the impact ring 28, which causes the screen tube 6 to shake violently, thereby allowing the iron impurities on the ferritic stainless steel screen 7 to fall off smoothly, improving cleaning efficiency.

[0033] The electromagnet 5 inside the outer casing 1 uses a coil made of aluminum or copper. When the coil is energized, it generates a magnetic field in the magnetic cavity 3. The ferritic stainless steel screen 7 consists of 17 magnetic sheets (mesh) made of 430 material. The entire iron separator equipment control system can automatically or manually control the energization and de-energization of the electromagnet 5, and control the position of the reversing plate via the electric lifting rod 13, thereby controlling the slag discharge time. When material passes through the magnetic field generated in the magnetic cavity 3 from the top of the screen tube 6, it will attract iron-containing materials. When the ferritic stainless steel screen 7 in the screen tube 6 attracts too much iron material, the equipment will open the slag discharge pipe 9 to discharge slag. During slag discharge, the air hammer 27 above the equipment strikes to assist the rapid flow of material. This solves the problem of incomplete removal of iron impurities from battery raw materials in existing technologies.

[0034] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A dry-type electromagnet iron separator, characterized in that, The device includes an outer shell (1), with several vertically arranged legs (2) on the lower side of the outer shell (1). A magnetic cavity (3) is provided inside the outer shell (1), and a sealing tube (4) is vertically arranged inside the magnetic cavity (3). The upper and lower ends of the sealing tube (4) are respectively connected to the upper and lower sides of the outer shell (1). An electromagnet (5) is arranged around the sealing tube (4) inside the magnetic cavity (3). A sieve tube (6) is installed inside the sealing tube (4), and several ferritic stainless steel sieves (7) are installed inside the sieve tube (6). The upper end of the screen tube (6) is placed on the upper side of the outer shell (1), and the lower end is placed on the lower side of the outer shell (1); a vibration motor (8) is installed on the lower side of the outer shell (1); a slag discharge pipe (9) connected to the screen tube (6) is provided at the lower end of the screen tube (6) below the outer shell (1); a reversing plate (10) is provided at the connection between the screen tube (6) and the slag discharge pipe (9) for controlling the upper part of the screen tube (6) to connect to the lower end of the screen tube (6) or to the slag discharge pipe (9).

2. The dry electromagnet separator according to claim 1, characterized in that: A rotating shaft (11) is horizontally arranged on the lower side of the connection between the screen tube (6) and the slag discharge pipe (9). A rotating sleeve (12) is rotatably sleeved on the outer wall of the rotating shaft (11). The lower side of the reversing plate (10) is connected to the outer wall of the rotating sleeve (12). An electric telescopic rod (13) is arranged on the outer wall of the screen tube (6) on the side away from the slag discharge pipe (9). The output shaft of the electric telescopic rod (13) passes through the screen tube (6) and the reversing plate (10). The reversing plate (10) is connected to the side away from the slag discharge pipe (9); when the electric telescopic rod (13) extends, the reversing plate (10) fits and seals the connection between the screen pipe (6) and the slag discharge pipe (9), and the upper part of the screen pipe (6) and the lower end of the screen pipe (6) are connected; when the electric telescopic rod (13) shortens, the edge of the reversing plate (10) fits against the inner wall of the screen pipe (6), and the upper part of the screen pipe (6) and the slag discharge pipe (9) are connected.

3. A dry electromagnet separator according to claim 2, characterized in that: The reversing plate (10) is vertically provided with a connecting piece (14) on the side away from the slag discharge pipe (9). The connecting piece (14) even has a long hole (15) that runs through both sides. The telescopic end of the electric telescopic rod (13) is movably connected to the long hole (15) through the connecting shaft (16).

4. A dry electromagnet separator according to claim 2, characterized in that: A guide ring (17) is provided above the reversing plate (10) surrounding the inner wall of the screen tube (6). The upper side of the guide ring (17) is configured as an inclined surface (18) that slopes downward from the inner wall of the screen tube (6) toward the middle of the screen tube (6).

5. A dry electromagnet separator according to claim 2, characterized in that: The electric telescopic rod (13) is installed on the outer wall of the screen tube (6) via a mounting bracket (19).

6. A dry electromagnet separator according to claim 1, characterized in that: An oil pump (20) and an oil tank (21) are installed on the side of the outer casing (1). The oil outlet of the oil tank (21) is connected to the oil inlet of the oil pump (20) through a first connecting pipe (22). The oil outlet of the oil pump (20) is connected to the magnetic cavity (3) through a second connecting pipe (23). The oil inlet of the oil tank (21) is connected to the magnetic cavity (3) through a third connecting pipe (24).

7. A dry electromagnetic separator according to claim 6, characterized in that: The oil tank (21) is provided with a heat dissipation pipe (25), and the two ends of the heat dissipation pipe (25) are respectively connected to the surfaces of the two ends of the oil tank (21). A cooling fan (26) is provided at one end of the oil tank (21) at the position corresponding to the heat dissipation pipe (25); the heat dissipation pipe (25) is provided in multiple ways.

8. A dry electromagnet separator according to claim 1, characterized in that: An air hammer (27) is installed on the upper side of the outer shell (1), and an impact ring (28) is sleeved on the upper side of the outer wall of the screen tube (6). The output shaft of the air hammer (27) is aligned with the impact ring (28).