阅读说明：本技术 石墨负极材料除磁设备 (Graphite cathode material demagnetizing equipment ) 是由 黄欣 陈萍姬 于 2021-08-09 设计创作，主要内容包括：本发明公开了一种石墨负极材料除磁设备,包括：构建封闭型定向输送通道的输送部件、沿输送通道上方设置的磁吸部件、沿输送通道下方设置的超声波部件；所述定向输送通道一端输入石墨粉粒,一端输出石墨粉粒；所述超声波部件催动石墨粉粒振动形成分散扬起状态并触及上方的磁吸部件。本发明构建封闭的定向输送通道,石墨粉粒在内部输送时不会出现粉尘外泄情况,使用超声波驱动石墨粉粒振动形成分散和扬起的状态,包含其中的带磁杂质被释放出来,在扬起过程中被上方的磁吸部件捕捉,达到除磁的目的。石墨粉粒不断振动分散和扬起的状态,结合输送通道的长度,鲜有带磁杂质疏漏不被吸走,除磁程度极高,且保证联连续作业。(The invention discloses a graphite cathode material demagnetizing device, which comprises: the device comprises a conveying component for constructing a closed directional conveying channel, a magnetic component arranged above the conveying channel and an ultrasonic component arranged below the conveying channel; one end of the directional conveying channel inputs graphite particles, and the other end outputs the graphite particles; the ultrasonic part promotes the graphite particles to vibrate to form a dispersed and raised state and contact the magnetic part above. The invention constructs a closed directional conveying channel, the graphite particles can not leak dust when being conveyed inside, the ultrasonic wave is used for driving the graphite particles to vibrate to form a dispersed and lifted state, magnetic impurities contained in the graphite particles are released and are captured by the magnetic part above the graphite particles in the lifting process, and the purpose of demagnetizing is achieved. The graphite powder particles are continuously vibrated, dispersed and raised, and the length of the conveying channel is combined, so that fresh magnetic impurities are leaked and not absorbed, the magnetic removal degree is extremely high, and continuous operation is ensured.)

1. Graphite cathode material removes magnetism equipment, its characterized in that includes:

the device comprises a conveying component for constructing a closed directional conveying channel, a magnetic component arranged above the conveying channel and an ultrasonic component arranged below the conveying channel;

one end of the directional conveying channel inputs graphite particles, and the other end outputs the graphite particles;

the ultrasonic part promotes the graphite particles to vibrate to form a dispersed and raised state and contact the magnetic part above.

2. The graphite cathode material demagnetizing device of claim 1, wherein the conveying channel is configured in a structure that an input end is inclined downwards to an output end, and graphite powder particles are conveyed downwards in a directional manner under the driving of the ultrasonic component and gravity.

3. The graphite cathode material demagnetizing device of claim 1, wherein the magnetic attracting component comprises a plurality of electromagnetic attracting units arranged along the length direction of the conveying channel, a driving rail is arranged above the electromagnetic attracting units, the electromagnetic attracting units are hung on the driving rail, and under the driving of the driving rail, the electromagnetic attracting units enter and leave the conveying channel, can perform an attracting operation when entering the conveying channel, and can clean the attracted magnetic impurities when leaving the conveying channel.

4. The graphite negative electrode material demagnetizing device of claim 3, wherein the electromagnetic adsorption unit comprises:

the electromagnet support comprises a mounting plate, a group of electromagnets oppositely arranged on the lower side of the mounting plate and a partition plate for separating the oppositely arranged electromagnets;

the mounting plate is hung on the driving track, the width of the electromagnets is equal to that of the conveying channel, the driving track drives the opposite electromagnets to enter and exit the conveying channel from the side part, and when one electromagnet is positioned in the conveying channel, the other electromagnet is positioned outside the conveying channel.

5. The graphite cathode material demagnetizing device of claim 1, wherein the magnetic attraction component comprises a plurality of electromagnetic attraction plates;

a plurality of open openings are formed above the conveying part and communicated with the interior of the conveying channel; each opening is correspondingly provided with an electromagnetic suction plate which can be horizontally turned over, the electromagnetic suction plates just seal the opening when being positioned in a horizontal state, and after the opening is sealed by all the electromagnetic suction plates, the top surface of the conveying component forms a plane; the electromagnetic suction plate is positioned on one side of the conveying channel and horizontally overturns to the outside for cleaning after adsorbing magnetic impurities.

6. The graphite negative electrode material demagnetizing device of claim 5, wherein a magnetism isolating plate is arranged on one surface of the electromagnetic suction plate, so that the electromagnetic suction plate forms a single-surface magnetized structure, the magnetized surface of the electromagnetic suction plate is used for adsorbing magnetized impurities when turned inwards and used for cleaning the magnetized impurities when turned outwards, and adjacent electromagnetic suction plates in the electromagnetic suction plates are alternately turned over to ensure the continuity of operation.

7. The graphite cathode material demagnetizing device of claim 5, wherein the electromagnetic suction plate is of a double-sided magnetic structure, and a magnetic isolation plate is arranged in the middle of the electromagnetic suction plate to separate a positive magnetic surface from a negative magnetic surface; when any one of the magnetic surfaces is positioned in the conveying channel, the magnetic force of the magnetic surface is opened to carry out adsorption operation, and when any one of the magnetic surfaces is positioned outside the conveying channel, the magnetic force of the magnetic surface is closed to carry out cleaning operation.

Technical Field

The invention relates to the technical field of battery production equipment, in particular to graphite cathode material demagnetizing equipment.

Background

Graphite is an important material for preparing the battery cathode, and is subjected to demagnetization treatment before processing and use so as to reduce magnetic impurities in the graphite. In the existing demagnetizing equipment for graphite cathode materials, crushed graphite particles are placed on a conveyer belt or in a roller, a magnetic absorption rod is placed near the conveyer belt or in the roller, and the graphite particles and the magnetic absorption rod are driven to move relatively by the rotation of the conveyer belt or the roller, so that magnetic impurities contacting or approaching the magnetic absorption rod are adsorbed, and the purpose of cleaning the magnetic impurities from the graphite particles is achieved. The equipment has the problem that part of magnetic impurities are buried in graphite particles or cannot be brought out by being close to and contacting with the magnetic absorption rod, so that only the graphite particles can be primarily selected, and the effect of fine selection cannot be achieved.

Disclosure of Invention

It is an object of the present invention to address at least the above-mentioned deficiencies and to provide at least the advantages which will be described hereinafter.

The invention also aims to provide graphite cathode material demagnetizing equipment, which is characterized in that a directional conveying channel of graphite particles is constructed, ultrasonic waves are applied to the directional conveying channel to drive the graphite particles to disperse, vibrate and lift, the graphite particles are contacted with an upper magnetic suction part in the lifting process, magnetic impurities hidden in the graphite particles are adsorbed, the demagnetizing range is high, and the operation continuity is high.

To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a graphite anode material demagnetizing device including:

the device comprises a conveying component for constructing a closed directional conveying channel, a magnetic component arranged above the conveying channel and an ultrasonic component arranged below the conveying channel;

one end of the directional conveying channel inputs graphite particles, and the other end outputs the graphite particles;

the ultrasonic part promotes the graphite particles to vibrate to form a dispersed and raised state and contact the magnetic part above.

According to the technical scheme, the closed directional conveying channel is constructed, dust leakage cannot occur when graphite particles are conveyed inside, the graphite particles are driven by ultrasonic waves to vibrate to form dispersed and lifted states, magnetic impurities contained in the graphite particles are released and are caught by the magnetic suction component above the graphite particles in the lifting process, and the purpose of removing magnetism is achieved. The graphite powder particles are continuously vibrated, dispersed and raised, and the length of the conveying channel is combined, so that fresh magnetic impurities are leaked and not absorbed, the magnetic removal degree is extremely high, and continuous operation is ensured.

Preferably, in the graphite cathode material demagnetizing device, the conveying channel is configured in a structure in which an input end is inclined downward toward an output end, and graphite particles are conveyed downward in a directional manner under the driving of the ultrasonic component and gravity.

In the technical scheme, the graphite particles are driven by ultrasonic waves to vibrate and lift continuously, and under the action of gravity, the graphite particles uniformly move downwards step by step in the conveying channel to complete the demagnetizing operation, an additional driving device is not needed for pushing the graphite particles to convey, and the cost is low.

Preferably, graphite negative pole material remove among the magnetic equipment, the part is inhaled to magnetism includes a plurality of electromagnetism adsorption unit that arrange along transfer passage length direction, electromagnetism adsorption unit top is provided with the drive track, electromagnetism adsorption unit articulates on the drive track, under the orbital drive of drive, electromagnetism adsorption unit gets into and leaves transfer passage, can adsorb the operation when getting into transfer passage, can clear up the adsorbed impurity that takes the magnetism when leaving transfer passage.

Among the above-mentioned technical scheme, the continuity of absorption operation and clearance operation is guaranteed to a plurality of electromagnetism absorption units, guarantees to remove the effect of magnetism, adsorbs the unit immigration or shifts out transfer passage and can accomplish the conversion of absorption operation and clearance operation through drive track drive battery, and control is convenient, and the operation is convenient.

Preferably, in the graphite negative electrode material demagnetizing device, the electromagnetic adsorption unit includes:

the electromagnet support comprises a mounting plate, a group of electromagnets oppositely arranged on the lower side of the mounting plate and a partition plate for separating the oppositely arranged electromagnets;

the mounting plate is hung on the driving track, the width of the electromagnets is equal to that of the conveying channel, the driving track drives the opposite electromagnets to enter and exit the conveying channel from the side part, and when one electromagnet is positioned in the conveying channel, the other electromagnet is positioned outside the conveying channel.

Among the above-mentioned technical scheme, the electromagnet is to placing in baffle both sides, and under drive orbital drive, when an electromagnet was located transfer passage, another was located the transfer passage outside, so the conversion carries out the adsorption operation respectively and clears up the operation, guarantees the continuity of operation and removes the magnetism effect.

Preferably, in the graphite cathode material demagnetizing device, the magnetic attraction component comprises a plurality of electromagnetic attraction plates;

a plurality of open openings are formed above the conveying part and communicated with the interior of the conveying channel; each opening is correspondingly provided with an electromagnetic suction plate which can be horizontally turned over, the electromagnetic suction plates just seal the opening when being positioned in a horizontal state, and after the opening is sealed by all the electromagnetic suction plates, the top surface of the conveying component forms a plane; the electromagnetic suction plate is positioned on one side of the conveying channel and horizontally overturns to the outside for cleaning after adsorbing magnetic impurities.

Among the above-mentioned technical scheme, inhale the structure that the part design becomes can overturn with magnetism, utilize the two sides upset of magnetism to inhale the part to switch and reach the purpose that adsorbs the operation and adsorb impurity clearance operation conversion, guarantee that adsorption operation and clearance operation can continuously go on, promote the continuity of operation, improve production efficiency. And the open mouth and the cooperation of electromagnetism suction disc make the completion conversion that the electromagnetism suction disc can be more convenient, and more do benefit to the bottom surface and contact with the graphite powder particle that lifts, the magnetic impurity of top surface is clear away more easily.

Preferably, in the graphite cathode material magnetism removing device, one side of the electromagnetic suction plate is provided with a magnetism isolating plate so that the electromagnetic suction plate forms a single-side magnetic structure, the magnetic surface of the electromagnetic suction plate is used for adsorbing magnetic impurities when turning inwards, the magnetic impurities are cleaned when turning outwards, and adjacent electromagnetic suction plates in the plurality of electromagnetic suction plates are alternately turned over to ensure the continuity of operation.

In the technical scheme, the electromagnetic suction plate structure with magnetism on one side is designed, the simultaneous operation of adsorption and cleaning is completed by alternately overturning the adjacent electromagnetic suction plates, the working efficiency is high, and the equipment cost is low.

Preferably, in the graphite cathode material demagnetizing device, the electromagnetic suction plate is of a double-sided magnetic structure, and a magnetic isolation plate is arranged in the middle of the electromagnetic suction plate to separate a positive magnetic surface from a negative magnetic surface; when any magnetic surface is positioned in the conveying channel, the magnetic force of the surface is opened to carry out adsorption operation, and when any magnetic surface is positioned outside the conveying channel, the magnetic force of the surface is closed to carry out cleaning operation.

In the technical scheme, the double-sided magnetic electromagnetic suction plate structure is designed, each electromagnetic suction plate can independently complete the conversion of adsorption and cleaning, the working efficiency is high, and the adsorption effect is good.

The invention at least comprises the following beneficial effects:

the device provided by the invention constructs a closed directional conveying channel, so that dust leakage of graphite particles can be avoided during internal conveying, ultrasonic waves are used for driving the graphite particles to vibrate to form a dispersed and lifted state, magnetic impurities contained in the graphite particles are released and are captured by the magnetic part above the graphite particles in the lifting process, and the purpose of removing magnetism is achieved. The graphite powder particles are continuously vibrated, dispersed and raised, and the length of the conveying channel is combined, so that fresh magnetic impurities are leaked and not absorbed, the magnetic removal degree is extremely high, and continuous operation is ensured.

The device utilizes ultrasonic waves to drive the graphite particles to vibrate and lift continuously, and the graphite particles move downwards uniformly step by step in the conveying channel under the action of gravity, so that the demagnetizing operation is completed, an additional driving device is not needed to push the graphite particles to convey, and the cost is low.

The equipment provided by the invention is provided with the plurality of electromagnetic adsorption units to ensure the continuity of adsorption operation and cleaning operation and the demagnetization effect, and the battery adsorption units are driven by the driving track to move in or out of the conveying channel to complete the conversion between the adsorption operation and the cleaning operation, so that the control is convenient and the operation is convenient.

The equipment provided by the invention has the advantages that the magnetic part is designed into a structure capable of being turned, the purpose of switching between adsorption operation and impurity adsorption cleaning operation is achieved by turning over the two sides of the magnetic part, the adsorption operation and the cleaning operation can be continuously carried out, the continuity of the operation is improved, and the production efficiency is improved. And the open mouth and the cooperation of electromagnetism suction disc make the completion conversion that the electromagnetism suction disc can be more convenient, and more do benefit to the bottom surface and contact with the graphite powder particle that lifts, the magnetic impurity of top surface is clear away more easily.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic perspective view of a graphite negative electrode material demagnetizing device according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a front side facing an input port of a graphite cathode material demagnetizing device according to a second embodiment of the invention;

fig. 3 is a schematic side view of a graphite negative electrode material demagnetizing device according to a third embodiment of the present invention;

fig. 4 is a schematic structural diagram of a front side of a graphite cathode material demagnetizing device facing an input port according to a third embodiment of the present invention, where the device is in a first state;

fig. 5 is a schematic structural diagram of a front side of a graphite cathode material demagnetizing device facing an input port according to a third embodiment of the present invention, where the device is in a second state;

fig. 6 is a schematic side structure view of a graphite negative electrode material demagnetizing device according to a fourth embodiment of the present invention;

fig. 7 is a schematic top surface structure view of a graphite negative electrode material demagnetizing device according to a fourth embodiment of the present invention;

fig. 8 is a schematic structural diagram of a front side of a graphite negative electrode material demagnetizing device according to a fourth embodiment of the invention, the front side facing an input port.

Detailed Description

The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.

Fig. 1 shows an embodiment of the graphite negative electrode material demagnetizing device of the present disclosure, which includes:

the device comprises a conveying component 1 for constructing a closed directional conveying channel 101, a magnetic suction component 3 arranged above the directional conveying channel 101 and an ultrasonic component 2 arranged below the directional conveying channel 101; the ultrasonic component 2 can be located inside or outside the directional conveying channel 101, as long as the ultrasonic wave can penetrate into the directional conveying channel 101, and the magnetic component 3 needs to be located inside the directional conveying channel 101.

Graphite particles are input into one end of the directional conveying channel 101, and graphite particles are output from the other end of the directional conveying channel; the cross-sectional shape of the directional conveying passage 101 is set as required, but a square cross-section is most suitable for the conveyance of the graphite powder particles uniformly spread and dispersed. In order to reduce leakage of graphite particles, two ends of the directional conveying channel 101 are set in a relatively closed state, and only the input port and the discharge port are left or hanging cloth is arranged on the input port and the discharge port for shielding. The conveying component 1 can realize directional conveying by gravity, wind power, a conveying belt, or a combination of the above.

The ultrasonic part 2 drives the graphite particles to vibrate to form a dispersed and raised state and contact the magnetic part 3 above. The ultrasonic part 3 outputs vibration to drive the graphite particles to vibrate upwards, the graphite particles are dispersed to be distributed in a more uniform state, and the magnetic impurities mixed in the graphite particles and the magnetic impurities wrapped in the graphite particles can be released and continuously lifted to be in contact with the magnetic part above, so that the graphite particles are attracted away by the magnetic part. The high-frequency ultrasonic vibration has a better effect on graphite particles formed by rolling and crushing, because rolling can enable partial graphite particles to be bonded, the graphite particles cannot be dispersed, and partial magnetic impurities are buried in the bonded graphite particles and are difficult to release, which is one of the key reasons that the magnetic removal rate of the traditional magnetic removal equipment is not high enough, and the ultrasonic vibration can vibrate the bonded graphite particles, so that the problem is effectively solved.

In the using process, the specific power of the ultrasonic part 2 can be set according to the requirement, for example, according to the particle size and weight of the graphite particles, the conveying thickness of the graphite particles and the height of the conveying channel, the specific power of the ultrasonic part is determined after the vibration effect is ensured through debugging, the graphite particles can be ensured to be lifted up to touch the magnetic suction part 3, and the electric power is not wasted excessively. The standard of the common graphite powder particles is 50-15000, the ultrasonic component can be used for driving and vibrating, and in order to ensure the uniform degree of vibration, the graphite powder particles are sieved before being put into the ultrasonic component, so that the uniformity of the particle size of the powder particles is ensured.

The advantage of this embodiment is that a closed directional conveying channel 101 is constructed, the graphite particles are conveyed inside without dust leakage, ultrasonic waves are used to drive the graphite particles to vibrate to form a dispersed and lifted state, and magnetic impurities contained in the graphite particles are released (including particles adhered to the surfaces of the particles, wrapped inside the particles and mixed in the particles), and are captured by the magnetic attraction component above the graphite particles during lifting, so as to achieve the purpose of removing magnetism. The graphite powder particles are continuously vibrated, dispersed and raised, and the length of the conveying channel is combined, so that fresh magnetic impurities are leaked and not absorbed, the magnetic removal degree is extremely high, and continuous operation is ensured.

Further, as shown in fig. 1, in another embodiment, the directional conveying channel 101 is configured in a structure that the input end is declined towards the output end, and graphite powder particles are directionally conveyed downwards under the driving of the ultrasonic component 2 and gravity.

The embodiment has the advantages that the graphite powder particles are driven by ultrasonic waves to vibrate and lift continuously, the graphite powder particles automatically and uniformly move downwards step by step in the conveying channel under the action of gravity, the demagnetizing operation is completed, the conveying part does not need an additional driving device to push the graphite powder particles to convey, and the cost is low.

Further, as shown in fig. 2, in another embodiment, the magnetic suction component 3 includes a plurality of electromagnetic adsorption units arranged along the length direction of the conveying channel, a driving rail 4 is arranged above the electromagnetic adsorption units, the electromagnetic adsorption units are hung on the driving rail 4, the electromagnetic adsorption units move left and right relative to the conveying channel under the driving of the driving rail 4, enter and leave the directional conveying channel 101 from an opening 102 at the side of the conveying component, and can perform an adsorption operation when entering the directional conveying channel 101, and can clean adsorbed magnetic impurities when leaving the conveying channel. Preferably, the size of the opening 102 is matched with the size of the electromagnetic adsorption unit, and a part of the electromagnetic adsorption unit is always fitted in the opening 102 to prevent graphite powder particles from leaking.

The advantage of this embodiment lies in, the continuity of a plurality of electromagnetism absorption units assurance absorption operation and clearance operation guarantees the effect of removing magnetism, adsorbs the switching that the unit immigrated or shifted out directional transfer passage can accomplish absorption operation and clearance operation through drive track 4 drive battery, and control is convenient, and the operation is convenient.

Further, as shown in fig. 3 to 5, in another embodiment, the electromagnetic adsorption unit includes:

the electromagnet support comprises a mounting plate 5, a group of electromagnets 301 arranged on the lower side of the mounting plate in an opposite mode, and a partition plate 6 for separating the opposite electromagnets; the partition 6 is preferably a magnetic partition plate.

The mounting plate 5 is hung on the driving track 4, the width of the electromagnets 301 is equal to or similar to that of the directional conveying channel 101, the driving track 4 drives the opposite electromagnets 301 to penetrate into and out of the directional conveying channel 101 from the side, and when one electromagnet 301 is positioned in the conveying channel, the other electromagnet 301 is positioned outside the conveying channel. Fig. 4 and 5 are views showing states in which the left electromagnet and the right electromagnet are located in the directional conveying path, respectively.

In order to improve the sealing performance of the directional conveying channel, an opening is formed in the side wall of the conveying component, the electromagnet 301 enters and exits the directional conveying channel 101 through the opening, and the size of the electromagnet 301 is matched with the opening, so that the matching tightness is improved. And a sealing plate 7 is arranged on the outer side of each electromagnet, when the electromagnet moves into the directional conveying channel, the sealing plate 7 of the electromagnet seals the opening on the outer side, and the partition plate 6 seals the opening on the inner side, so that the sealing performance is improved.

The advantage of this embodiment is that the electromagnets 301 are oppositely arranged on both sides of the partition 6, and when one electromagnet 301 is positioned in the directional conveying channel 101 and the other electromagnet is positioned outside the conveying channel under the driving of the driving track 4, the switching is carried out, so as to respectively carry out the adsorption operation and the cleaning operation, and ensure the continuity of the operation and the demagnetization effect.

As shown in fig. 6 to 8, in another embodiment, the magnetic attraction component 3 includes a plurality of electromagnetic attraction plates 302;

a plurality of open openings are formed above the conveying component 1, and the open openings are communicated with the interior of the directional conveying channel 101; each open opening is correspondingly provided with an electromagnetic suction plate 302 capable of being turned horizontally, the electromagnetic suction plates are rotatably connected with the conveying part 1 through a rotating shaft 8 so as to be turned, the rotating shaft is connected with a driving motor so as to provide turning power, the driving motor is controlled so as to control the turning of the electromagnetic suction plates 302, the open openings are just closed when the electromagnetic suction plates 32 are positioned in a horizontal state, and after the open openings are closed by all the electromagnetic suction plates 302, the top surface of the conveying part 1 forms a plane; after the electromagnetic suction plate 302 adsorbs the magnetic impurities on one surface facing the inside of the directional conveying channel, the magnetic impurities can be cleaned after being horizontally turned to the outside. The plurality of electromagnetic suction plates can be arranged in a continuous structure, or can be arranged in a separated structure as shown in fig. 6 and 7, the separation is realized by the partition plate 9, and the top of the directional conveying channel is closed by the partition plate 9 and the electromagnetic suction plates.

This embodiment will inhale the part design into the structure that can overturn with magnetism, utilize the two sides upset of magnetism to inhale the part to switch and reach the purpose that adsorbs the operation and adsorb impurity clearance operation conversion, guarantee that adsorption operation and clearance operation can continuously go on, promote the continuity of operation, improve production efficiency. And the open mouth and the cooperation of electromagnetism suction disc make the completion conversion that the electromagnetism suction disc can be more convenient, and more do benefit to the bottom surface and contact with the graphite powder particle that lifts, the magnetic impurity of top surface is clear away more easily.

Further, as shown in fig. 6 to 8, in another embodiment, a magnetism isolating plate is disposed on one side of the electromagnetic suction plate 302 to enable the electromagnetic suction plate 302 to form a single-sided magnetic structure, the magnetic surface of the electromagnetic suction plate 302 is turned inwards to adsorb magnetic impurities, the electromagnetic suction plate is turned outwards to clean the magnetic impurities, and adjacent electromagnetic suction plates in the plurality of electromagnetic suction plates are alternately turned over to ensure continuity of operation.

The electromagnetic suction plate structure has the advantages that the electromagnetic suction plate structure with magnetism on the single surface is designed, the simultaneous operation of adsorption and cleaning is completed by alternately overturning the adjacent electromagnetic suction plates, the working efficiency is high, and the equipment cost is low.

Further, as shown in fig. 6 to 8, in another embodiment, the electromagnetic absorption plate 302 is configured as a double-sided magnetic structure, and a magnetic isolation plate is disposed in the middle to separate a positive magnetic surface from a negative magnetic surface; when the magnetic surface of any electromagnetic suction plate 302 is positioned in the directional conveying channel 101, the magnetic force of the surface is opened to adsorb the magnetic impurities, and when the magnetic surface of any electromagnetic suction plate 302 is positioned outside the directional conveying channel, the magnetic force of the surface is closed to clean the magnetic impurities.

The electromagnetic suction plate structure has the advantages that the electromagnetic suction plate structure with double surfaces provided with magnetism is designed, each electromagnetic suction plate can independently complete the conversion of adsorption and cleaning, the working efficiency is high, and the adsorption effect is good.

The following provides an implementation process of the graphite cathode material of the scheme:

the crushed graphite particles are introduced into the directional conveying passage at a constant speed, the ultrasonic component drives the graphite particles to vibrate, disperse and lift up, and magnetic impurities in the graphite particles are adsorbed by the magnetic adsorption component.

When the magnetic part adsorbs more impurities with magnetic force, the electromagnet is driven to alternately swing out of the directional conveying channel, or the electromagnetic suction plate is controlled to alternately overturn, and then the electromagnet or the electromagnetic suction plate which swings out of the conveying channel is powered off and short magnetic force is generated, so that the adsorbed impurities with magnetic force are easier to clean, such as scraping, blowing or sucking.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art.