Efficient iron removal machine for lithium battery material

Abstract

An efficient iron removal machine for lithium battery materials comprises a hopper, a feeding cylinder, a blocking strip, a distributor, a vibration motor, material uniformizing nails, a first magnetic roller, a transmission gear, a second magnetic roller, a material distribution plate, a material scattering hopper, an iron hopper and a non-iron hopper, the distributor is in a ridge shape, the material uniformizing nails are arranged on the two slopes of the ridge, and the vibration motor is arranged on the end face of the distributor; a first magnetic roller and a second magnetic roller are arranged below the ridge-shaped distributor, a plurality of magnetic poles are arranged in the rollers, and distributing plates are arranged below the rollers respectively. By means of the technology, 10-15000-mesh magnetic substances such as iron and titanium in the powder in the machining process can be continuously and effectively separated and removed, the processes such as magnetizing, demagnetizing and stopping for material receiving in the midway of an existing magnetic separator are omitted, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention specifically relates to a high-efficiency iron remover for lithium battery materials, and belongs to the field of new energy vehicle battery production equipment. Background Art

[0002] In the production of lithium batteries for new energy vehicles, it is necessary to continuously remove iron from quartz sand and powder, mainly to remove iron impurities in various powdered materials with a mesh size of 10-15000, such as lithium battery positive electrode ternary materials, lithium manganese oxide, lithium carbonate, lithium iron phosphate, lithium cobalt oxide, nickel cobalt manganese hydroxide ternary precursor, lithium hydroxide monohydrate, lithium mica, manganese carbonate, lithium hydroxide monohydrate, lithium mica, ternary precursor, nickel cobalt manganese hydroxide, electrolytic manganese dioxide, electrolytic manganese metal, lithium-grade cobalt chloride, cobalt hydroxide, battery material waste, silica, ceramic powder, quartz sand, potassium feldspar, bauxite and other new energy, high-purity quartz, mineral powder, chemical, electronic, food, pharmaceutical and other industries powders, etc.

[0003] At present, the commonly used iron removers are mainly dry powder iron removers. Taking the technology disclosed in application number: 202322906932.X as an example, the machine includes a material barrel, an electromagnetic coil sleeved on the material barrel, and a sealed accommodating chamber. There is a gap between adjacent excitation windings, and a number of internal insulating partitions are provided between the innermost excitation winding and the inner wall of the magnetic system. This kind of electric excitation powder iron remover generates a lot of heat in the excitation winding. Cooling oil must be used to fully absorb the heat generated by the excitation winding, improve the cooling and heat dissipation effect and uniformity of the excitation winding, and ensure the stability of the magnetic field. The overall energy consumption is large and the efficiency is low. Application number: 202221477314.7 also discloses a forced oil circulation electromagnetic iron remover that solves the problem that the cooling medium in the device in the traditional technology does not flow smoothly inside and cannot evenly exchange heat with the heat generated by the excitation coil, which can achieve cooling of the heat generated by the excitation coil. The above-mentioned prior art has another significant disadvantage, that is, during use, magnetization, demagnetization, stopping and collecting materials must be performed continuously, and continuous production cannot be performed, which undoubtedly reduces production efficiency.

[0004] In view of the above problems, the technology of the present invention proposes a lithium battery material high-efficiency iron remover that adopts a horizontal roller structure and can work continuously. Its technical solution is significantly different from the prior art and is a technical advancement. Summary of the invention

[0005] The present invention proposes a high-efficiency iron remover for lithium battery materials, which realizes uniform and automatic dispersion and screening of materials and can work continuously without interruption. The distance between the magnetic pole and the material is small and the magnetic field is strong, which effectively solves the problems of heat dissipation of the excitation winding of the traditional iron remover, the problem of inability to work continuously, and the problem of uneven clumping and falling of powder materials.

[0006] The main technologies of the high-efficiency iron remover for lithium battery materials proposed in the present invention are as follows: it includes a hopper, a feed barrel, a barrier strip, a distributor, a vibration motor, a material leveling nail, a first magnetic roller, a transmission gear, a second magnetic roller, a distributor plate, a bulk hopper, an iron hopper and a non-iron hopper.

[0007] A plurality of barrier strips are arranged transversely inside the feed barrel; the distributor is in the shape of a roof ridge, the apex of the roof ridge is located in the middle of the feed barrel, a plurality of material leveling nails are arranged on two inclined surfaces of the roof ridge, and a vibration motor is arranged on the end surface of the distributor.

[0008] The first magnetic roller and the second magnetic roller are arranged under the eaves on both sides of the ridge-shaped distributor respectively. The first magnetic roller and the second magnetic roller rotate in opposite directions under the drive of the transmission gear; a plurality of magnetic poles are arranged inside the first magnetic roller and the second magnetic roller.

[0009] A material dividing plate is respectively arranged below the first magnetic roller and the second magnetic roller, two iron hoppers are placed directly below the two material dividing plates, two non-iron hoppers are arranged outside the two iron hoppers, and a bulk material hopper is arranged between the two iron hoppers.

[0010] The contact point between the dividing plate and the two rollers is not located on the vertical center line of the rollers, but is preferably located in front of the lowest point of the rollers along the rotation direction.

[0011] The magnetic poles of the first magnetic roller and the second magnetic roller are permanent magnetic poles or electrically excited magnetic poles, the magnetization directions of adjacent magnetic poles in the circumferential direction are opposite, and the outer peripheries of the magnetic poles are wrapped with non-magnetic stainless steel.

[0012] The material leveling nail is in the shape of a triangle with its apex facing upwards.

[0013] The present invention has the following beneficial effects:

[0014] There are several barrier strips arranged horizontally inside the feed barrel, and several leveling nails are arranged on the two inclined surfaces of the distributor. The leveling nails are in the shape of a triangle with the vertex facing upward, which realizes the uniform and automatic dispersion and screening of the powder during the falling process, and solves the problem of uneven falling of powder agglomerates.

[0015] The roller can work continuously without interruption, which solves the problem that traditional iron removers must be constantly magnetized, demagnetized, stopped to collect materials, etc. during use and cannot work continuously.

[0016] The distance between the magnetic poles of the roller and the material is small and the magnetic field is strong, which effectively solves the problem of high heat generation and difficult heat dissipation of the excitation winding of the traditional iron remover.

[0017] A bulk hopper is provided in the middle of the roller to recover the non-magnetic iron material adhering to the roller.

[0018] It is equipped with a vibration motor, which can automatically crush the powder into agglomerates and improve the iron removal rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of a high-efficiency iron remover for lithium battery materials according to the present invention. In the figure: 1- hopper, 2-feeding barrel, 3-barrier strip, 4-distributor, 5-vibration motor, 6-equalizing nail, 7-first magnetic roller, 8-transmission gear, 9-second magnetic roller, 10-distributing plate, 11-bulk hopper, 12-iron hopper, 13-non-iron hopper. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example:

[0023] like Figure 1 As shown, a high-efficiency magnetic separator for lithium battery materials includes a hopper, a feed barrel, a barrier strip, a distributor, a vibration motor, a material leveling nail, a first magnetic roller, a transmission gear, a second magnetic roller, a distributor plate, a bulk hopper, an iron hopper and a non-iron hopper.

[0024] A plurality of barrier strips are arranged transversely inside the feed barrel; the distributor is in the shape of a roof ridge, the apex of the roof ridge is located in the middle of the feed barrel, a plurality of material leveling nails are arranged on two inclined surfaces of the roof ridge, and a vibration motor is arranged on the end surface of the distributor.

[0025] The first magnetic roller and the second magnetic roller are arranged under the eaves on both sides of the ridge-shaped distributor respectively. The first magnetic roller and the second magnetic roller rotate in opposite directions under the drive of the transmission gear; a plurality of magnetic poles are arranged inside the first magnetic roller and the second magnetic roller.

[0026] A material dividing plate is respectively arranged below the first magnetic roller and the second magnetic roller, two iron hoppers are placed directly below the two material dividing plates, two non-iron hoppers are arranged outside the two iron hoppers, and a bulk material hopper is arranged between the two iron hoppers.

[0027] The contact point between the dividing plate and the two rollers is not located on the vertical center line of the rollers, but is preferably located in front of the lowest point of the rollers along the rotation direction.

[0028] The magnetic poles of the first magnetic roller and the second magnetic roller are permanent magnetic poles or electrically excited magnetic poles. The magnetization directions of adjacent magnetic poles in the circumferential direction are opposite, and the outer periphery of the magnetic poles is wrapped with non-magnetic stainless steel. The permanent magnetic poles can provide a strong magnetic field without power supply, and the efficiency is high. The electrically excited magnetic poles can adjust the magnetic field strength according to the material, which is particularly suitable for multiple screening.

[0029] The material leveling nail is in the shape of a triangle with the vertex facing upwards. When the material powder falls, it is evenly distributed on the axial direction of the roller, and the agglomerated powder can also be broken under the action of the vibration motor, solving the problem of uneven falling of the material powder.

[0030] The technology of the present invention is completely different from the previous technical solutions. Its magnetic pole has high magnetic field intensity, the gap between the powder and the magnetic pole is small, and the contact area is large. At the same time, the magnetic pole is distributed in a circle, the magnetic field is evenly distributed, the magnetic path section has a smaller magnetic potential and can provide a larger magnetic field. The device of the present invention has its own powder crushing and dispersion system, and even if the material powder is agglomerated, it can effectively separate and remove magnetic substances such as iron and titanium in the powder during the processing process.

Claims

1. A high-efficiency iron remover for lithium battery materials, characterized in that: It includes a hopper, a feed barrel, a barrier strip, a distributor, a vibration motor, a material leveling nail, a first magnetic roller, a transmission gear, a second magnetic roller, a distributor plate, a bulk hopper, an iron hopper and a non-iron hopper; A plurality of barrier strips are arranged transversely inside the feed barrel; the distributor is in the shape of a roof ridge, the apex of the roof ridge is located in the middle of the feed barrel, a plurality of material leveling nails are arranged on the two inclined surfaces of the roof ridge, and a vibration motor is arranged on the end surface of the distributor; A first magnetic roller and a second magnetic roller are arranged under the eaves on both sides of the ridge-shaped distributor, respectively. The first magnetic roller and the second magnetic roller rotate in opposite directions under the drive of the transmission gear; a plurality of magnetic poles are arranged inside the first magnetic roller and the second magnetic roller; A material dividing plate is respectively arranged below the first magnetic roller and the second magnetic roller, two iron hoppers are placed directly below the two material dividing plates, two non-iron hoppers are arranged outside the two iron hoppers, and a bulk material hopper is arranged between the two iron hoppers.

2. A high-efficiency iron remover for lithium battery materials, characterized in that: The contact point between the dividing plate and the two rollers is not located on the vertical center line of the rollers, but is preferably located in front of the lowest point of the rollers along the rotation direction.

3. A high-efficiency iron remover for lithium battery materials, characterized in that: The magnetic poles of the first magnetic roller and the second magnetic roller are permanent magnetic poles or electrically excited magnetic poles, the magnetization directions of adjacent magnetic poles in the circumferential direction are opposite, and the outer peripheries of the magnetic poles are wrapped with non-magnetic stainless steel.

4. A high-efficiency iron remover for lithium battery materials, characterized in that: The material leveling nail is in the shape of a triangle with its apex facing upwards.

Images