Electromagnetic integrated screening and iron removal device

Abstract

The utility model discloses an electromagnetic integration screening deironing device, including the body, the body from top to bottom includes the deironing device (1) for removing ferromagnetic element, the screening device (2) of screening diameter, the demagnetizing device (3) of removing residual magnetic foreign matter and the fine material outlet (4.1) of discharging effective powder. The utility model provides a kind of electromagnetic integration screening deironing device, which integrates screening process and deironing process, reduces equipment and improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of screening devices, specifically an electromagnetic integrated screening and iron removal device. Background Technology

[0002] In the production of lithium-ion battery cathode materials, especially nickel-cobalt-manganese (NCM) ternary precursors, product purity is a key factor determining the final battery performance (such as energy density and cycle life) and safety. Two types of impurities must be strictly controlled during the production process: ① Large particle agglomerates or mechanical foreign objects: can affect the consistency and compaction density of the material.

[0003] ② Magnetic foreign objects: such as iron, nickel, and cobalt particles introduced by equipment wear, may puncture the separator during battery charging and discharging, causing internal short circuits and posing serious safety hazards.

[0004] Currently, the industry generally adopts a two-step independent process flow of "screening first, then iron removal". That is, the material first passes through a vibrating screen to remove large particle impurities; the undersize material then passes through an electromagnetic iron separator to adsorb and remove magnetic foreign objects. This traditional method has obvious drawbacks, such as a long process flow, many required equipment, large footprint, many material transfer links (which easily introduce new pollution and dust), high energy consumption, and a bottleneck in improving overall production efficiency. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an integrated electromagnetic screening and iron removal device that integrates screening and iron removal processes, reduces equipment, and improves production efficiency.

[0006] The technical solution adopted by this utility model to solve the above problems is as follows: an electromagnetic integrated screening and iron removal device, comprising a body, wherein the body comprises, from top to bottom, an iron removal device for removing ferromagnetic elements, a screening device for screening diameter, a demagnetizing device for removing residual magnetic foreign matter, and a fine material outlet for discharging effective powder.

[0007] Compared with the prior art, the advantages of this utility model are: the iron removal device and the screening device are designed as an integrated unit, which makes it easy for the raw materials to pass through the iron removal device, screening device and demagnetizing device in sequence, so as to quickly complete the screening process and iron removal process, improve production efficiency, avoid the introduction of new pollution and dust, and ensure the full removal of iron, nickel and cobalt elements through the dual iron removal process of the iron removal device and the demagnetizing device.

[0008] As an improvement of this utility model, the iron removal device includes a drawer iron remover. The upper end of the drawer iron remover is provided with a feed inlet, which is funnel-shaped. The end of the feed inlet is connected to the drawer iron remover. Through this improvement, the drawer iron remover is a standardized product on the market, which has a good effect on removing ferromagnetic materials and ensures the effectiveness of ferromagnetic removal. The funnel-shaped design of the feed inlet facilitates feeding into the body and ensures that the material fully enters the drawer iron remover for ferromagnetic removal.

[0009] As an improvement of this utility model, the lower end of the drawer iron separator is provided with a discharge port, which is flared from top to bottom. A reinforcing rib is connected to the outer circumference of the discharge port and the drawer iron separator. Through this improvement, the material after the initial iron removal is diffused by the design of the discharge port, so as to facilitate the screening process of the screening device. Furthermore, the design of the reinforcing rib ensures the stable installation of the drawer iron separator at the discharge port.

[0010] As an improvement of this utility model, the screening device includes a horizontally arranged screen and multiple vibrating motors. The multiple vibrating motors are evenly arrayed in the circumference of the body. Through this improvement, the body is vibrated by multiple vibrating motors. At this time, the material on the screen vibrates and diffuses. Large particles of material cannot pass through the screen and bounce back and forth on the screen, which will not cause the screen to be blocked, while small particles of qualified material can pass through the screen.

[0011] As an improvement of this utility model, multiple support bases are evenly arrayed in the lower circumference of the main body, and shock-absorbing springs are sleeved on each of the multiple support bases. An adjusting rod is movably connected inside the support base. One end of the adjusting rod is fixedly connected to the main body, and a supporting spring is provided between the other end of the adjusting rod and the support base. Through this improvement, the main body is supported and shock-absorbing, ensuring the safety of the main body in use.

[0012] As an improvement of this utility model, a gap is provided between the iron removal device and the screen. This improvement increases the vibration space of the material on the screen, avoids large particles from clogging the screen, and the gap design also facilitates the subsequent cleaning of the material on the screen.

[0013] As an improvement of this utility model, a protective cover is provided on the outer ring of the gap. The protective cover is made of transparent PVC soft board. Through this improvement, the design of the protective cover can prevent external pollution and dust, and can also prevent materials from falling off the body during vibration on the screen. The transparent design of the protective cover makes it easy to observe the material on the screen, so as to deal with large particles that have not passed through the screen in time. The design of the protective cover using PVC soft board not only gives the protective cover good flexibility and makes it less likely to be damaged by vibration, but also makes it easy to install and remove the protective cover by side enclosure.

[0014] As an improvement of this utility model, the demagnetizing device includes an electromagnetic mesh and an electromagnetic generator. The electromagnetic mesh is arranged along the circumference of the body, and a conductive rail is connected to the upper end of the electromagnetic mesh. The conductive rail is electrically connected to the electromagnetic generator. Through this improvement, the electromagnetic generator transmits current evenly to each wire of the electromagnetic mesh through the conductive rail. Then, the wire forms a magnetic field, enabling the electromagnetic mesh to adsorb small magnetic powder particles after being energized.

[0015] As an improvement of this utility model, a material collection cylinder is connected between the fine material outlet and the demagnetizing device. The material collection cylinder is funnel-shaped. Through this improvement, the material that has completed the screening process and the iron removal process can be collected.

[0016] As an improvement of this utility model, the fine material outlet is provided on a three-way valve. The upper end of the three-way valve is connected to the lower end of the material collecting cylinder. The lower end of the three-way valve is the fine material outlet, and the side end of the three-way valve is the magnetic material outlet. Through this improvement, the fine material outlet is used to collect qualified effective materials, and the magnetic material outlet is used to collect the magnetic materials that were adsorbed on the electromagnetic mesh during operation after the main body stops working. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional structural diagram of the support base of this utility model.

[0019] Figure 3 This is a schematic diagram of the protective cover structure of this utility model.

[0020] Figure 4 This is a schematic cross-sectional view of the fine material outlet structure of the three-way valve of this utility model.

[0021] Figure 5 This is a schematic cross-sectional view of the magnetic material outlet structure of the three-way valve of this utility model.

[0022] The diagram shows: 1. Iron removal device, 1.1. Drawer iron separator, 1.2. Feed inlet, 1.3. Discharge outlet, 1.4. Reinforcing rib, 2. Screening device, 2.1. Screen, 2.2. Vibrating motor, 2.3. Support base, 2.4. Shock-absorbing spring, 2.5. Adjusting rod, 2.6. Support spring, 3. Demagnetizing device, 3.1. Electromagnetic mesh, 3.2. Electromagnetic generator, 3.3. Conductive rail, 4. Three-way valve, 4.1. Fine material outlet, 4.2. Magnetic material outlet, 4.3. Adjusting valve, 5. Gap, 6. Protective cover, 7. Gathering cylinder. Detailed Implementation

[0023] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, an electromagnetic integrated screening and iron removal device includes a main body, which, from top to bottom, includes an iron removal device 1 for removing ferromagnetic elements, a screening device 2 for screening diameter, a demagnetizing device 3 for removing residual magnetic foreign matter, and a fine material outlet 4.1 for discharging effective powder.

[0025] The iron removal device 1 includes a drawer iron separator 1.1. The upper end of the drawer iron separator 1.1 has a feed inlet 1.2, which is funnel-shaped. The end of the feed inlet 1.2 is connected to the drawer iron separator 1.1. The lower end of the drawer iron separator 1.1 has a discharge outlet 1.3, which flares out from top to bottom. A reinforcing rib 1.4 is connected circumferentially to the outer side of the discharge outlet 1.3 and the drawer iron separator 1.1. The drawer iron separator 1.1 is existing technology; the housing of the drawer iron separator 1.1 in patent CN220238880U can be modified for adaptability and electrical connection can be made.

[0026] like Figure 1 , Figure 2 As shown, the screening device 2 includes a horizontally arranged screen 2.1 and three vibrating motors 2.2. The three vibrating motors 2.2 are evenly arrayed around the body. Three support bases 2.3 are evenly arrayed around the lower end of the body. Each support base 2.3 is fitted with a shock-absorbing spring 2.4. An adjusting rod 2.5 is movably connected inside each support base 2.3. One end of the adjusting rod 2.5 is fixedly connected to the body, and a support spring 2.6 is provided between the other end of the adjusting rod 2.5 and the support base 2.3. Installing the vibrating motors 2.2 above the support bases 2.3 better ensures the support effectiveness and shock absorption effectiveness of the support bases 2.3.

[0027] like Figure 1 , Figure 3As shown, a gap 5 is provided between the iron removal device 1 and the screen 2.1. A protective cover 6 is provided on the outer ring of the gap 5. The protective cover 6 is made of transparent PVC soft board. The protective cover 6 is installed by wrapping around the gap 5 from the side with the connecting post between the iron removal device 1 and the screen 2.1 as the reference. At both ends of the protective cover 6, there are matching fastening grooves and fastening block structures, and the fastening grooves and fastening blocks are fixedly connected by fasteners.

[0028] like Figure 1 , Figure 4 , Figure 5 As shown, the demagnetizing device 3 includes an electromagnetic mesh 3.1 and an electromagnetic generator 3.2. The electromagnetic mesh 3.1 is arranged circumferentially along the body. The upper end of the electromagnetic mesh 3.1 is connected to a conductive rail 3.3, which is electrically connected to the electromagnetic generator 3.2. A material collection cylinder 7 is connected between the fine material outlet 4.1 and the demagnetizing device 3. The material collection cylinder 7 is funnel-shaped. The fine material outlet 4.1 is located on a three-way valve 4. The upper end of the three-way valve 4 is connected to the lower end of the material collection cylinder 7. The lower end of the three-way valve 4 is the fine material outlet 4.1, and the side end of the three-way valve 4 is the magnetic material outlet 4.2. A regulating valve 4.3 is provided inside the three-way valve 4. The control switch of the regulating valve 4.3 is manually operated on the outside of the three-way valve 4. By operating the regulating valve 4.3, the material flow is controlled to either the fine material outlet 4.1 or the magnetic material outlet 4.2.

[0029] By designing an integrated electromagnetic screening and iron removal device, the separate screening and iron removal processes are integrated into a continuous and integrated operating unit, solving the problem of process dispersion, reducing the number of specialized equipment, lowering equipment procurement, installation and maintenance costs, reducing equipment footprint, and reducing the number of times materials are transferred between different devices, thereby reducing the risk of dust emission and secondary pollution, and improving production efficiency and quality.

[0030] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. An integrated electromagnetic screening and iron removal device, comprising a main body, characterized in that: The main body, from top to bottom, includes an iron removal device (1) for removing ferromagnetic elements, a screening device (2) for screening diameter, a demagnetizing device (3) for removing residual magnetic foreign matter, and a fine material outlet (4.1) for discharging effective powder.

2. The electromagnetic integrated screening and iron removal device according to claim 1, characterized in that: The iron removal device (1) includes a drawer iron remover (1.1), the upper end of which is provided with a feed inlet (1.2), the feed inlet (1.2) is funnel-shaped, and the end of the feed inlet (1.2) is connected to the drawer iron remover (1.1).

3. The electromagnetic integrated screening and iron removal device according to claim 2, characterized in that: The drawer iron remover (1.1) has a discharge port (1.3) at its lower end. The discharge port (1.3) is widened from top to bottom. A reinforcing rib (1.4) is connected to the outer circumference of the discharge port (1.3) and the drawer iron remover (1.1).

4. The electromagnetic integrated screening and iron removal device according to claim 1, characterized in that: The screening device (2) includes a horizontally arranged screen (2.1) and a plurality of vibration motors (2.2), which are evenly arrayed in the circumferential direction of the body.

5. The electromagnetic integrated screening and iron removal device according to claim 4, characterized in that: The lower end of the main body has a plurality of support bases (2.3) evenly arranged in a circumferential direction. Each of the support bases (2.3) is fitted with a shock-absorbing spring (2.4). An adjusting rod (2.5) is movably connected inside the support base (2.3). One end of the adjusting rod (2.5) is fixedly connected to the main body, and a supporting spring (2.6) is provided between the other end of the adjusting rod (2.5) and the support base (2.3).

6. The electromagnetic integrated screening and iron removal device according to claim 4, characterized in that: A gap (5) is provided between the iron removal device (1) and the screen (2.1).

7. The electromagnetic integrated screening and iron removal device according to claim 6, characterized in that: The outer ring of the gap (5) is provided with a protective cover (6), which is made of transparent PVC soft board.

8. The electromagnetic integrated screening and iron removal device according to claim 1, characterized in that: The demagnetizing device (3) includes an electromagnetic mesh (3.1) and an electromagnetic generator (3.2). The electromagnetic mesh (3.1) is arranged along the circumference of the body. A conductive rail (3.3) is connected to the upper end of the electromagnetic mesh (3.1). The conductive rail (3.3) is electrically connected to the electromagnetic generator (3.2).

9. The electromagnetic integrated screening and iron removal device according to claim 8, characterized in that: A material collection cylinder (7) is connected between the fine material outlet (4.1) and the demagnetizing device (3), and the material collection cylinder (7) is funnel-shaped.

10. The electromagnetic integrated screening and iron removal device according to claim 9, characterized in that: The fine material outlet (4.1) is located on a three-way valve (4). The upper end of the three-way valve (4) is connected to the lower end of the material collection cylinder (7). The lower end of the three-way valve (4) is the fine material outlet (4.1), and the side end of the three-way valve (4) is the magnetic material outlet (4.2).

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