CN115400943A - Screening method for lithium battery recycled materials based on unilateral vibration screening - Google Patents

Screening method for lithium battery recycled materials based on unilateral vibration screening Download PDF

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Publication number
CN115400943A
CN115400943A CN202211205744.8A CN202211205744A CN115400943A CN 115400943 A CN115400943 A CN 115400943A CN 202211205744 A CN202211205744 A CN 202211205744A CN 115400943 A CN115400943 A CN 115400943A
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China
Prior art keywords
screening
feeding
screen
connecting plate
gear
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CN202211205744.8A
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Chinese (zh)
Inventor
刘松利
李扬
付怡
何爱一
肖娜薇
曾炜华
符文渊
何芃杕
杜方晓
陈程
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Yangtze Normal University
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Yangtze Normal University
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Priority to CN202211205744.8A priority Critical patent/CN115400943A/en
Publication of CN115400943A publication Critical patent/CN115400943A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/04—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06—Feeding or discharging arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/06—Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B15/00—Apparatus or processes for salvaging material from cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B15/00—Apparatus or processes for salvaging material from cables
    • H01B15/008—Apparatus or processes for salvaging material from cables by crushing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/84—Recycling of batteries or fuel cells

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  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses a screening method of a lithium battery recycled material based on unilateral vibration screening, which realizes screening of crushed material particles by means of vibration of a filter screen. Therefore, the method has the advantages of simplicity, high efficiency, rapidness and reliability, and can screen out different material components of the waste lithium battery so as to facilitate subsequent recovery treatment.

Description

Screening method for lithium battery recycled materials based on unilateral vibration screening
Technical Field
The invention relates to the technical field of waste lithium battery recovery, in particular to a screening method of a lithium battery recovery material based on unilateral vibration screening.
Background
The lithium ion battery has the advantages of high energy density, high voltage, small self-discharge, good cycle performance, safe operation and the like, and is relatively friendly to the natural environment, so that the lithium ion battery is widely applied to electronic products such as mobile phones, tablet computers, notebook computers, digital cameras and the like. In addition, the lithium ion battery has wide application in energy storage power systems such as water power, fire power, wind power and solar energy, and is gradually the best choice for power batteries of electric vehicles. The lithium ion battery uses a large amount of metals such as lithium, nickel, cobalt, manganese, copper, iron, aluminum and the like, and the scrapped lithium ion battery is rich in valuable metals. In addition, the lithium ion battery contains fluorine-containing inorganic electrolyte and organic binder, and if the lithium ion battery is improperly recycled, the lithium ion battery can cause serious pollution to the environment. Therefore, the recycling of the lithium ion battery has important economic and environmental significance.
The waste lithium ion battery recovery technology generally adopts the steps of firstly disassembling the lithium ion battery, separating materials of each part such as a shell, an electrode, a current collector and even electrolyte, and then respectively and intensively treating the materials of each part for recycling. The anode and cathode materials and the diaphragm of the waste lithium ion battery and the metal materials of the current collectors such as copper, aluminum and the like can be separated by adopting a mechanical crushing and screening method.
In order to better realize the screening of the recycled materials of lithium ion batteries, the applicant filed a screening device for crushed waste lithium ion battery electrode materials of patent CN 202010565128.8. The device comprises a shell, wherein a feeding port is formed in the middle of the upper end of the shell, a horizontal screen is arranged in an inner cavity of the shell, a vibrating device is arranged below the screen, and corresponding discharging ports are formed in the shell above and below the screen; the casing is including the sorting cylinder of the straight tube-shape that is located the lower part, still including the overhead guard that is located the frustum form of upper end, wherein, can dismantle the connection between overhead guard and the sorting cylinder, and the pan feeding mouth sets up at the overhead guard middle part, and the sorting cylinder inner wall is provided with the screen cloth mounting structure who is used for installing the screen cloth, screen cloth mounting structure includes a horizontal installation at the inboard collar of casing, and the inboard concave screen cloth installation step that is formed with of collar upper surface, screen cloth detachably cooperation are installed in screen cloth installation step. The invention has the advantages of improving the screening effect of equipment, prolonging the service life of the screen and better improving the recovery and treatment efficiency of the battery electrode. The following drawbacks still remain: 1 the device adopts circular shape screen cloth, pours the material into screen cloth middle part earlier, and the screen cloth leans on the even vibration realization screening that the vibrator provided, and the material is followed the peripheral one side ejection of compact of screen cloth after the screening. The edge position vibration effect that the screen cloth links to each other with the vibrator is better like this, and intermediate position vibration effect is relatively poor, but the material drops the relatively poor intermediate position of vibration effect earlier, shakes the diffusion to week side from the centre again, so have screening and discharge efficiency lower, even vibration screening effect defect such as relatively poor. 2. The device can sieve out the material granule that the particle diameter is different betterly, but battery electrode material after the breakage can contain different compositions such as metal material, positive negative pole material and diaphragm material, and the material of these different compositions mixes together, can't sieve apart, can influence subsequent recovery processing.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a lithium battery recycled material screening method based on unilateral vibration screening that can prolong the screening route better to make the material march in-process screening vibration effect and screening material condition match, in order to improve screening effect and efficiency. The lithium battery in the application mainly refers to a vehicle-mounted lithium ion battery.
In order to solve the technical problem, the invention adopts the following technical scheme:
a screening method for a lithium battery recycled material based on unilateral vibration screening is characterized in that the screen adopts single-end vibration, the material is fed from the vibration end of the screen, the material is gradually shaken from the feeding end to the other end to be gathered and discharged, and the material is screened in a flowing water type in the process.
By adopting the screening method, the quantity of the materials falling from the feeding end of the screen is larger, the corresponding vibration (amplitude) of the end is larger, when the materials move from the feeding end to the discharging end of the screen, the quantity of the materials is gradually reduced along with the falling of the materials, and the vibration of the screen is also gradually reduced corresponding to the amplitude, so that the running water type screening can be better realized, and the screening and falling motion condition in the material advancing process can be perfectly matched with the vibration condition. Therefore, the screening effect and the screening efficiency can be better improved. In addition, the screening mode of single-end vibration also considers the characteristics of lithium ion battery particle materials, because the characteristics of the lithium ion battery easily form a large amount of concave polyhedron or even V-shaped structure particle materials when the lithium ion battery is broken, the lithium ion battery is easily hung on the screen to cause blockage, and the single-end vibration screen is easier to enable the hung V-shaped particle materials to shake and fall off due to unbalanced stress on two sides, so that the blockage can be better avoided.
Furthermore, the screening adopts a mode of superposing at least two amplitudes to realize vibration screening.
Like this, the screen cloth realizes the screening under the superimposed drive of dual amplitude, compares with single amplitude vibration mode, can shake off the V-arrangement granule of articulate on the screen cloth better, can greatly improve the screening effect.
Furthermore, the method is realized by means of a screening device for the lithium battery recycled materials with unilateral vibration, the screening device for the lithium battery recycled materials with the unilateral vibration comprises a screening box, a feeding hole is formed in the top of the screening box, a plurality of layers of horizontally arranged screen meshes are arranged in the screening box at intervals from top to bottom, a screen mesh vibration device is further arranged in the screening box and connected with each layer of screen mesh, and a discharge barrel is arranged on the screening box on one side of each layer of screen mesh; screening case horizontal cross-section and screen cloth are the rectangle that corresponds, and screen cloth length direction's one end is the discharge end, and the discharge end is shelved on the screen cloth mount table of screening incasement wall and is linked up with the play feed cylinder, and screen cloth length direction's the other end is the feed end, and the feed end and the screen cloth vibrating device of screen cloth link to each other and can be driven vertical vibration, and set up on the screening roof surface of screen cloth feed end top the feed inlet.
Therefore, when materials are fed, the materials fall into the screen from the feeding end of the screen, the single end of the feeding end of the screen vibrates, the materials are gradually shaken from the feeding end to the other end to be gathered to the discharging port for discharging, and the moving water-flowing type screening discharging is realized in the process, so that the material screening process and the moving process are combined, and the screening efficiency is better improved. Simultaneously, this kind of screening mode, when the material falls from the screen cloth feed end quantity is great, and the corresponding vibration of this end is also great (amplitude), and when the material moved the discharge end from the screen cloth feed end, along with the sieve of material falls, the material quantity diminishes gradually, and the screen cloth vibration also corresponds the amplitude and diminishes gradually, so not only can realize the screening of motion flowing water formula better, and the material goes forward the sieve that in-process and falls the motion condition can with the vibration size condition perfect adaptation. Therefore, the screening effect and the screening efficiency can be better improved. In addition, the screening mode of single-end vibration also enables V-shaped particle materials hung on the screen to shake and fall off due to unbalanced stress on two sides more easily, so that blockage can be better avoided.
Furthermore, a feeding mechanism is arranged at the feeding port and comprises a feeding box, a horizontally arranged cylindrical feeding cavity is arranged in the feeding box, a feeding hopper is arranged above one end of the cylindrical feeding cavity in a communicating mode, the other end of the cylindrical feeding cavity is connected with the feeding port downwards, a feeding screw shaft (a rotating shaft provided with a helical blade matched with the inner cavity of the cylindrical feeding cavity) is arranged in the cylindrical feeding cavity in a matching mode, and one end of the feeding screw shaft is connected with feeding power equipment;
the feeding box is positioned between the end part of the cylindrical feeding cavity and the feeding hole, a strip-shaped refining cavity is arranged perpendicular to the cylindrical feeding cavity, the lower surface of the end part of the cylindrical feeding cavity, which is positioned above the feeding hole, is provided with an outlet which is connected with the middle part of the refining cavity, the length direction of the refining cavity is arranged along the width direction of the screening box, a refining shaft is arranged in the refining cavity along the length direction of the refining shaft, two groups of opposite refining spiral blades are symmetrically arranged on the refining shaft, and the feeding hole is distributed below the refining cavity along the length direction of the refining cavity; the tail end of the feeding screw shaft penetrates out of the cylindrical feeding cavity and is fixedly provided with a driving bevel gear, the driving bevel gear is positioned in a transmission cavity inside the feeding box and is meshed with a vertically arranged driven bevel gear, the driven bevel gear is coaxially and fixedly provided with a driving gear, the driving gear is downwards meshed with a driven gear, and a mounting shaft of the driven gear is in transmission connection with the end part of the refining shaft through a synchronous belt.
When the feeding box works, the feeding screw shaft rotates to drive the leaked materials of the feeding hopper to orderly move to the middle part of the refining cavity, meanwhile, the tail end of the feeding screw shaft drives the refining shaft to rotate by a pair of bevel gears and a pair of circular gears which are respectively meshed and by synchronous belt transmission, and the materials are uniformly conveyed from the middle to the two ends and fall into the feeding end of the screen mesh from the feeding hole below by the refining screw blades symmetrically arranged on the refining shaft. Therefore, the material can fall into the screen from the feeding end of the screen along the width direction better, and the uniformity of feeding is improved. The reliability and the efficiency of screen cloth screening can be improved more.
Further, the middle part of the feed inlet is narrow and the width of the middle part is gradually widened towards the two sides.
Therefore, the materials in the feeding cavity fall into the refining cavity from the middle part of the refining cavity, so that more materials can fall into the middle part of the feeding hole more easily, the width of the middle part of the feeding hole is narrowed, and the two ends of the feeding hole are gradually widened, and the materials falling from the feeding hole can be better and uniformly distributed. The reliability and the efficiency of screen cloth screening can be improved more. The material just so can begin to fall the feed end of screen cloth along screen cloth width direction whole uniformly, and the whole screen cloth feed end that follows after the vibration again removes to the discharge end, realizes the screening, so greatly improved the efficiency and the reliability of screening.
Further, screen cloth vibrating device, including a motor that is located the screening case outside, install an scarce tooth gear along vertical direction on the motor output shaft, lack tooth gear periphery and only be provided with one section teeth of a cogwheel, it is equipped with a transmission tooth frame that can reciprocate to lack tooth gear frame, transmission tooth frame inner wall both sides respectively are provided with a rack, lack tooth gear rotate to correspond behind the direction its teeth of a cogwheel can with the rack toothing that corresponds and drive transmission tooth frame up-and-down motion, transmission tooth frame lower end fixedly downward is connected with the drive connecting plate, the horizontal connecting plate that drive connecting plate and level set up links to each other, the baffle fixed connection that the perforation that the horizontal connecting plate level passed on being located screening case lateral wall and vertical setting, the baffle is installed the screen cloth fixed station and is connected with the feed end of screen cloth in the face of one side of screen cloth, the baffle is laminated on screening case inside wall and can shelter from the shielding on one side of screen cloth the perforation.
Like this, motor output rotates and drives the rotation of scarce tooth gear, through the meshing in turn of scarce tooth gear and two inboard racks of transmission tooth frame, drives transmission tooth frame reciprocating up-and-down motion (lack tooth gear promptly and begin to mesh with the unilateral rack meshing the same time, and then drive horizontal connecting plate reciprocating up-and-down motion through the drive connecting plate, the realization is to the single-ended vibration of screen cloth feed end. Therefore, the device can transmit large vibration power, and is reliable and efficient.
Furthermore, a horizontal connecting plate mounting hole is formed in one end, connected with the horizontal connecting plate, of the driving connecting plate, the end part of the horizontal connecting plate can be assembled in the horizontal connecting plate mounting hole in a vertically moving mode, and when the horizontal connecting plate is in an initial moving state, the end part of the horizontal connecting plate is attached to the lower surface of the horizontal connecting plate mounting hole and a section of space is reserved between the end part of the horizontal connecting plate and the upper surface of the horizontal connecting plate mounting hole; when the horizontal connecting plate moves to the horizontal state of the screen, the middle position of the gear teeth of the gear with missing teeth is meshed with the middle position of the rack on the corresponding side.
Therefore, after the driving connecting plate moves upwards and drives the horizontal connecting plate to move upwards to the top point, as a section of interval is left between the end part of the horizontal connecting plate and the upper surface of the mounting hole of the horizontal connecting plate, the horizontal connecting plate leaves a space for continuing to move upwards under the action of inertia, and the horizontal connecting plate can be separated from the constraint of the driving connecting plate, continues to move upwards for a small distance, then contacts with the upper surface of the mounting hole of the horizontal connecting plate and is driven to move downwards. Therefore, the upward movement amplitude of the horizontal connecting plate is larger than the downward movement amplitude in the vibration process. Therefore, the materials on the screen can be better driven to gradually move from the feeding end to the discharging end while being screened, and the screening in a flow line mode is realized.
Furthermore, a vertically arranged variable amplitude spring is fixedly connected in the through hole and between the horizontal connecting plates.
Therefore, because the lithium battery shell and the electrode are both of the flat-plate structures, after the lithium battery shell and the electrode are crushed into particles by the crushing mechanism, a large number of concave polyhedrons can be generated, and even a large number of particles which are directly in V-shaped structures can be generated, which is different from the conventional particles which are made of convex polyhedrons. Therefore, in the screening process, the concave polyhedron and even the particles with V-shaped structures are easy to be hung on the screen, and the screen is easy to be blocked. The amplitude-variable spring can cooperate with the space left between the upper surface of the end part of the horizontal connecting plate and the mounting hole of the horizontal connecting plate, so that the horizontal connecting plate can generate small elastic movement with at least one reciprocating period under the action of inertia of the amplitude-variable spring in a short time after the horizontal connecting plate moves upwards to the moment of separation. Therefore, the horizontal connecting plate generates amplitude-variable vibration with small amplitude when vibrating upwards to the highest point and is driven to vibrate downwards. So reciprocal, the screen cloth is downward at the drive of dual amplitude of fluctuation vibration, compares with single amplitude vibration mode, can be better with hanging the V-arrangement granule shake-off on the screen cloth, can greatly improve the screening effect. Meanwhile, the rotation with small amplitude is generated after the vibration with large amplitude reaches the highest point, so that the effect of driving the materials on the screen to flow towards the direction of the discharge end can be improved.
Furthermore, the upper surface of the horizontal connecting plate mounting hole is fixedly connected with a cushion block by a screw in a detachable way. Like this, can conveniently adjust cushion thickness to the size of interval between adjustment horizontal connecting plate tip and the horizontal connecting plate mounting hole upper surface, so that above-mentioned process can adjust and realize smoothly, also conveniently changes the restoration after wearing and tearing lead to the effect variation.
Furthermore, a transmission box is arranged on the outer side of the screening box, and the tooth-lacking gear, the transmission gear frame and the driving connecting plate are located in the transmission box. This can improve the protective effect on the transmission mechanism better.
Furthermore, one end of the feeding screw shaft is connected with an output shaft of the motor, and the motor forms the feeding power equipment. Therefore, three power positions of the whole equipment are driven by only one motor, and the equipment device is greatly simplified.
Further, the lower extreme in the screening case outside is provided with the supporting leg.
Furthermore, an air inlet pipe is communicated with the side wall of the screening box below any screen.
Like this, during the broken back material granule got into screening case inner chamber from the feed inlet, relied on the screen cloth vibration to realize screening, relied on the intake pipe to admit air during the screening for screen cloth below atmospheric pressure is great, and the guide atmospheric pressure air current upwards passes the filter screen, and the granule that can the proportion is bigger passes the filter screen and leaks the ejection of compact down, realizes the screening to the material. Simultaneously, because old and useless lithium ion battery self characteristic, the breakage is the particulate matter in-process, can produce the granular material that a large amount of concave polyhedrons are direct V-arrangement structures even, and this kind of structure articulates on the screen cloth very easily at the screening in-process and causes the jam, and lets in air current atmospheric pressure below the screen cloth, can upwards jack-up the V-arrangement granular material who articulates under the atmospheric pressure effect, can prevent its jam screen cloth better, keeps going on smoothly of screening.
Further, the screen cloth includes first screen cloth, second screen cloth and the third screen cloth that from the top down set up, and the third screen cloth below is just pegged graft to the level and is provided with the case that gathers materials that can extract, and the intercommunication is provided with first outlet duct on the screening case lateral wall between first screen cloth and the second screen cloth, and the intercommunication is provided with the second outlet duct on the screening case lateral wall between second screen cloth and the third screen cloth, and the intercommunication is provided with on the screening case lateral wall between third screen cloth and the case that gathers materials the intake pipe.
Like this, the intake pipe enters into the box from third screen cloth below, forms ascending air current atmospheric pressure under the outlet duct guide effect, then partial air current flows out the pressure release from the second outlet duct between second screen cloth and the third screen cloth, and remaining part air current atmospheric pressure continues upwards to pass through the second screen cloth, flows out the pressure release from the first outlet duct between second screen cloth and the first screen cloth. This results in no upward air flow pressure on the first screen and a gradual increase in upward air flow pressure on the second to third screens. So the material enters into first screen cloth after, can realize the normal screening of once earlier for satisfy the material that the granule particle size required and leak down from first screen cloth, the ejection of compact section of thick bamboo ejection of compact of the great material of granule from first screen cloth right side. Then the materials meeting the requirement of the granularity fall onto a second screen, and are subjected to air pressure airflow in a certain direction while being subjected to vibrating screening by the second screen, so that lighter materials (the main part of the membrane material) stay above the second screen and are finally discharged from a corresponding discharge cylinder. The rest materials fall into the third screen downwards, are subjected to larger upward air pressure airflow while being subjected to vibratory screening by the third screen, so that the light materials (the anode and cathode materials are main parts, such as lithium cobaltate, ternary materials, graphite materials and the like) stay above the third screen and are finally discharged from the corresponding discharge barrel. Finally, the heaviest remaining material (mainly made of metal material) passes through the third screen downwards and falls into a collecting box. Therefore, the screening of materials with different specific gravities according to different materials can be better finished. Simultaneously, the device can realize primary screening of material particle sizes. Therefore, the screening device can be directly applied to screening recovery treatment of crushed waste lithium battery materials or waste lithium battery electrode materials, and can also be used together with the existing screening device in the background technology, the screening device in the background technology finishes screening the particle size requirement, and then the screening device enters the device for further treatment, so that the screening requirement can be better met. In addition, when the device is implemented, the mesh sizes of the three screens are generally the same, but the mesh sizes can be adjusted to be the same within a certain range on the basis of meeting the air pressure screening process, so as to better ensure the final screening effect.
Further, first outlet duct and second outlet duct all correspond and are provided with flow control valve, still install first baroceptor on the screening case lateral wall that first outlet duct corresponds, flow control valve on first baroceptor and the first outlet duct is relevant to be set up, still install second baroceptor on the screening case lateral wall that the second outlet duct corresponds, flow control valve on second baroceptor and the second outlet duct is relevant to be set up.
Therefore, the air pressure in the corresponding chamber can be detected through the first air pressure sensor and the second air pressure sensor, and if the air pressure is too large, the air exhaust flow is increased by correspondingly adjusting the associated flow regulating valve so as to reduce the air pressure. Therefore, the air pressure control can be better realized, and the air pressure auxiliary filtering and screening effect can be more reliably ensured.
Furthermore, the air inlet pipes are uniformly distributed, and the outer ends of the air inlet pipes are connected with an air inlet main pipe; the first air outlet pipe is provided with a plurality of uniformly distributed first air outlet pipes, and the outer ends of the first air outlet pipes are connected with the first air outlet header pipe; the second outlet duct is provided with evenly distributed many, and each second outlet duct outer end links to each other with the second house steward of giving vent to anger.
Thus, air can be fed and discharged more dispersedly and uniformly. During implementation, the flow regulating valve can be respectively arranged on the first air outlet main pipe and the second air outlet main pipe, so that the installation quantity is reduced, and the control is convenient.
Furthermore, filter screens are arranged at the inlets of the first air outlet pipe and the second air outlet pipe. Thus, the materials can be prevented from being brought out by the air flow.
Furthermore, the outer ends of the first air outlet pipe and the second air outlet pipe are connected with a bag-type dust collector. Better dust removal is possible.
Furthermore, the discharge barrel comprises an inclined section which inclines towards the outer lower part, the outer end of the inclined section is collected towards the middle part and is gathered and connected with a downward vertical barrel section, and a discharge switch valve is installed on the vertical barrel section.
Like this, when the device used, can close ejection of compact ooff valve earlier, avoid losing air, treat that partial material enters into out the feed cylinder and forms the air current and seal the back, open ejection of compact ooff valve (adjustable closure degree size) ejection of compact again, the material is followed out the feed cylinder and is gathered together and form the air current and shield the ejection of compact downwards from the vertical section of thick bamboo section after of thick bamboo to its outer end collection, so can guarantee the normal ejection of compact of screening processing in-process material better and this in-process and maintain the stability of cavity internal gas pressure, with the supplementary screening effect of assurance atmospheric pressure.
When the material receiving device is implemented, the material receiving device comprises a material receiving frame, three material receiving boxes are distributed on the material receiving frame along the height direction, and the height of each material receiving box corresponds to the outlet height of the corresponding material discharging barrel and is used for receiving materials. The lower end of the chassis at the lower part of the material receiving frame is further provided with a roller with a self-locking function, so that the material receiving is convenient to push.
In conclusion, the method has the advantages of simplicity, high efficiency, rapidness and reliability, and can screen out different material components of the waste lithium batteries so as to facilitate subsequent recovery and treatment.
Drawings
Fig. 1 is a schematic structural diagram of a screening device for recycled lithium battery materials with unilateral vibration, which is adopted in the implementation of the invention.
Fig. 2 is a schematic structural view of the internal transmission mechanism in the top view direction of the single feeding mechanism in fig. 1.
Fig. 3 is a left side view of a partial structure of the single pinion rack of fig. 1.
Fig. 4 is an enlarged schematic view of a portion of the structure of fig. 1 taken alone at a.
Fig. 5 is a schematic view of the individual feed openings of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The specific implementation mode is as follows: a screening method for a lithium battery recycled material based on unilateral vibration screening is characterized in that the screen adopts single-end vibration, the material is fed from the vibration end of the screen, the material is gradually shaken from the feeding end to the other end to be gathered and discharged, and the material is screened in a moving flow type in the process.
By adopting the screening method, the quantity of the materials falling from the feeding end of the screen is larger, the corresponding vibration (amplitude) of the end is larger, when the materials move from the feeding end to the discharging end of the screen, the quantity of the materials is gradually reduced along with the falling of the materials, and the vibration of the screen is also gradually reduced corresponding to the amplitude, so that the running water type screening can be better realized, and the screening and falling motion condition in the material advancing process can be perfectly matched with the vibration condition. Therefore, the screening effect and the screening efficiency can be better improved. In addition, the screening mode of single-end vibration also considers the characteristics of lithium ion battery particle materials, because the characteristics of the lithium ion battery easily form a large amount of concave polyhedron or even V-shaped structure particle materials when the lithium ion battery is broken, the lithium ion battery is easily hung on the screen to cause blockage, and the single-end vibration screen is easier to enable the hung V-shaped particle materials to shake and fall off due to unbalanced stress on two sides, so that the blockage can be better avoided.
Wherein, the screening adopts at least two kinds of amplitude superposition modes to realize vibration screening.
Like this, the screen cloth realizes screening under the superimposed drive of dual amplitude, compares with single amplitude vibration mode, can shake off the V-arrangement granule of articulate on the screen cloth better, can greatly improve the screening effect.
More specifically, in this embodiment, the screening device for lithium battery recycled materials with unilateral vibration shown in fig. 1 to 5 is adopted, and the screening device for lithium battery recycled materials with unilateral vibration includes a screening box 1, a feeding port 35 is arranged at the top of the screening box, a plurality of layers of screens 30 horizontally arranged are arranged at intervals in the screening box 1, a screen vibrating device is further arranged in the screening box and connected with each layer of screen, a discharging barrel is arranged on the screening box on one side of each layer of screen, wherein the horizontal section of the screening box 1 and the screens 30 are in corresponding rectangles, one end in the length direction of the screens is a discharging end, the discharging end is placed on a screen mounting table on the inner wall of the screening box and connected with the discharging barrel, the other end in the length direction of the screens is a feeding end, the feeding end of the screens 30 is connected with the screen vibrating device and can be driven to vibrate vertically, and the feeding port is arranged on the top surface of the screening box above the feeding end of the screens.
Therefore, when materials are fed, the materials fall into the screen from the feeding end of the screen, the single end of the feeding end of the screen vibrates, the materials are gradually shaken from the feeding end to the other end to be gathered to the discharging port for discharging, and the moving water-flowing type screening discharging is realized in the process, so that the material screening process and the moving process are combined, and the screening efficiency is better improved. Meanwhile, in the screening mode, when the materials fall from the feeding end of the screen, the quantity of the materials is large, the end correspondingly vibrates to be large (amplitude), when the materials move to the discharging end from the feeding end of the screen, the quantity of the materials is gradually reduced along with the falling of the materials, and the vibration of the screen is also gradually reduced corresponding to the amplitude, so that the movement running water type screening can be better realized, and the screening and falling movement condition in the material advancing process can be perfectly matched with the vibration size condition. Therefore, the screening effect and the screening efficiency can be better improved. In addition, the screening mode of single-end vibration enables V-shaped particle materials hung on the screen to shake and fall off due to unbalanced stress on two sides more easily, and therefore blocking can be avoided better.
The feeding mechanism is arranged at the feeding port and comprises a feeding box 16, a horizontally arranged cylindrical feeding cavity is arranged in the feeding box, a feeding hopper 19 is arranged above one end of the cylindrical feeding cavity in a communicating mode, the other end of the cylindrical feeding cavity is connected with the feeding port downwards, a feeding screw shaft 17 (a rotating shaft provided with a helical blade matched with the inner cavity of the cylindrical feeding cavity) is arranged in the cylindrical feeding cavity in a matched mode, and one end of the feeding screw shaft is connected with feeding power equipment.
When feeding like this, rely on the feeding screw axle feeding not only can realize the feeding control better, more importantly can realize that the feeding is sealed, avoids screening case inner chamber air pressure air current to spill the pressure release from feed inlet department, and influence the filtration and divide the sieve. Meanwhile, in the conveying process, due to extrusion, the caking of the electrode material can be pressed open, so that the electrode material is convenient to screen.
Wherein, the feeding box 16 is positioned between the end part of the cylindrical feeding cavity and the feeding hole, and is also provided with a strip-shaped refining cavity vertical to the cylindrical feeding cavity, the lower surface of the end part of the cylindrical feeding cavity positioned above the feeding hole is provided with an outlet connected with the middle part of the refining cavity, the length direction of the refining cavity is arranged along the width direction of the screening box, the refining cavity is internally provided with a refining shaft along the length direction thereof, the refining shaft is symmetrically provided with two groups of opposite refining helical blades 26, and the feeding holes are distributed below the refining cavity along the length direction of the refining cavity; the tail end of the feeding screw shaft penetrates through the cylindrical feeding cavity and is fixedly provided with a driving bevel gear 18, the driving bevel gear is located in a transmission cavity in the feeding box and is meshed with a vertically arranged driven bevel gear 13, the driven bevel gear 13 is coaxially and fixedly provided with a driving gear 14, the driving gear 14 is downwards meshed with a driven gear 29, and a mounting shaft of the driven gear 29 is in transmission connection with the end part of the refining shaft through a synchronous belt 31.
When the feeding box works, the feeding screw shaft rotates to drive the leaked materials of the feeding hopper to orderly move to the middle part of the refining cavity, meanwhile, the tail end of the feeding screw shaft drives the refining shaft to rotate by a pair of bevel gears and a pair of circular gears which are respectively meshed and by synchronous belt transmission, and the materials are uniformly conveyed from the middle to the two ends and fall into the feeding end of the screen mesh from the feeding hole below by the refining screw blades symmetrically arranged on the refining shaft. Therefore, the material can fall into the screen from the feeding end of the screen along the width direction better, and the uniformity of feeding is improved. The reliability and the efficiency of screen cloth screening can be improved more.
Wherein, the middle part of the feed inlet 35 is narrower and the width of the middle part gradually widens towards both sides.
Therefore, because the materials in the feeding cavity fall into the material homogenizing cavity from the middle part of the material homogenizing cavity, the middle part of the feeding port can fall into more materials more easily, the width of the middle part of the feeding port is narrowed, and the two ends of the feeding port are gradually widened, so that the falling materials of the feeding port can be more uniformly distributed. The reliability and the efficiency of screen cloth screening can be improved more. The material just so can begin to fall the feed end of screen cloth along screen cloth width direction whole uniformly, and the whole screen cloth feed end that follows after the vibration again removes to the discharge end, realizes the screening, so greatly improved the efficiency and the reliability of screening.
Wherein, screen cloth vibrating device, including a motor 9 that is located the screening case outside, install an scarce tooth gear 10 along vertical direction on the motor output shaft, scarce tooth gear periphery only is provided with one section teeth of a cogwheel, scarce tooth gear 10 frame is equipped with a transmission tooth frame 12 that can reciprocate, transmission tooth frame 12 inner wall both sides respectively are provided with a rack, lack tooth gear revolve to correspond behind the direction its teeth of a cogwheel can with the rack toothing that corresponds and drive transmission tooth frame up-and-down motion, transmission tooth frame lower extreme fixed downwardly connected has drive connecting plate 8, drive connecting plate 8 links to each other with the horizontal connection board 3 that the level set up, the baffle 4 fixed connection of perforation 2 and vertical setting that lie in on the screening case lateral wall is passed to the level of horizontal connection board 3, baffle 4 face to one side mid-mounting of screen cloth have screen cloth fixed station 6 and be connected with the feed end of screen cloth 30, the one side laminating of baffle back to the screen cloth is on the screening case inside wall and can shelter from the shielding the perforation.
Like this, motor output rotates and drives the rotation of scarce tooth gear, through the meshing in turn of scarce tooth gear and two inboard racks of transmission tooth frame, drives transmission tooth frame reciprocating up-and-down motion (lack tooth gear promptly and begin to mesh with the unilateral rack meshing the same time, and then drive horizontal connecting plate reciprocating up-and-down motion through the drive connecting plate, the realization is to the single-ended vibration of screen cloth feed end. Therefore, the vibration power can be transmitted reliably and efficiently.
Wherein, one end of the driving connecting plate, which is connected with the horizontal connecting plate, is provided with a horizontal connecting plate mounting hole 11, the end part of the horizontal connecting plate 3 can be assembled in the horizontal connecting plate mounting hole 11 in a way of moving up and down, and when the horizontal connecting plate 3 is in the initial state of movement, the end part of the horizontal connecting plate is attached to the lower surface of the horizontal connecting plate mounting hole and a section of space is left between the end part of the horizontal connecting plate and the upper surface of the horizontal connecting plate mounting hole 11; when the horizontal connecting plate 3 moves to the horizontal state of the screen, the middle position of the gear teeth of the gear with missing teeth is meshed with the middle position of the rack on the corresponding side.
Therefore, after the driving connecting plate moves upwards and drives the horizontal connecting plate to move upwards to the top point, as a section of interval is left between the end part of the horizontal connecting plate and the upper surface of the mounting hole of the horizontal connecting plate, the horizontal connecting plate leaves a space for continuing to move upwards under the action of inertia, and the horizontal connecting plate can be separated from the constraint of the driving connecting plate, continues to move upwards for a small distance, then contacts with the upper surface of the mounting hole of the horizontal connecting plate and is driven to move downwards. Therefore, the upward movement amplitude of the horizontal connecting plate is larger than the downward movement amplitude in the vibration process. Therefore, the materials on the screen can be better driven to move from the feeding end to the discharging end gradually while being screened, and the screening in a flow line mode is realized.
Wherein, a vertically arranged amplitude-variable spring 5 is fixedly connected in the through hole and between the horizontal connecting plates.
Therefore, because the lithium battery shell and the electrodes are both of the flat-plate structures, after the lithium battery shell and the electrodes are crushed into particles by the crushing mechanism, the particles are different from conventional particles which are convex polyhedrons, a large number of concave polyhedrons can be generated, and even a large number of particles which are directly in V-shaped structures can be generated. Therefore, in the screening process, the particles with the concave polyhedrons and even V-shaped structures are easily hung on the screen, and the screen is easily blocked. The amplitude-variable spring can cooperate with the space left between the upper surface of the end part of the horizontal connecting plate and the mounting hole of the horizontal connecting plate, so that the horizontal connecting plate can generate small elastic movement with at least one reciprocating period under the action of inertia of the amplitude-variable spring in a short time after the horizontal connecting plate moves upwards to the moment of separation. Therefore, the horizontal connecting plate generates amplitude-variable vibration with small amplitude when vibrating upwards to the highest point and is driven to vibrate downwards. So reciprocal, the screen cloth is downward at the drive of dual variation of amplitude vibration, compares with single amplitude vibration mode, can shake off the V-arrangement granule of hanging on the screen cloth better, can greatly improve the screening effect. Meanwhile, the rotation with small amplitude is generated after the large amplitude vibrates to the highest point, so that the effect of driving the materials on the screen to flow towards the direction of the discharge end can be improved.
Wherein, horizontal connecting plate mounting hole upper surface relies on a cushion of screw detachably fixedly connected with. Like this, can conveniently adjust cushion thickness to the size of interval between adjustment horizontal connecting plate tip and the horizontal connecting plate mounting hole upper surface, so that above-mentioned process can be adjusted and realized smoothly, also conveniently change the restoration after wearing and tearing lead to the effect variation.
Wherein, the screening case outside is provided with a transmission case 7, scarce tooth gear, transmission tooth frame and drive connecting plate are located the transmission case. This can improve the protection effect to the drive mechanism better.
One end of the feeding screw shaft is connected with an output shaft of the motor, and the motor forms the feeding power equipment. Therefore, three power positions of the whole equipment are driven by only one motor, and the equipment device is greatly simplified.
Wherein, the lower extreme outside the screening case is provided with supporting leg 27.
An air inlet pipe 34 is also communicated with the side wall of the screening box below any screen.
Like this, during the broken back material granule got into screening case inner chamber from the feed inlet, relied on the screen cloth vibration to realize screening, relied on the intake pipe to admit air during the screening for screen cloth below atmospheric pressure is great, and the guide atmospheric pressure air current upwards passes the filter screen, and the granule that can the proportion is bigger passes the filter screen and leaks the ejection of compact down, realizes the screening to the material. Simultaneously, because old and useless lithium ion battery self characteristic, the breakage is the particulate matter in-process, can produce the granular material that a large amount of concave polyhedrons are direct V-arrangement structures even, and this kind of structure articulates on the screen cloth very easily at the screening in-process and causes the jam, and lets in air current atmospheric pressure below the screen cloth, can upwards jack-up the V-arrangement granular material who articulates under the atmospheric pressure effect, can prevent its jam screen cloth better, keeps going on smoothly of screening.
Wherein, screen cloth 30 includes first screen cloth, second screen cloth and the third screen cloth that from the top down set up, and the third screen cloth below is just pegged graft to the level and is provided with the case 15 that gathers materials that can extract, and the intercommunication is provided with first outlet duct 32 on the screening case lateral wall between first screen cloth and the second screen cloth, and the intercommunication is provided with second outlet duct 33 on the screening case lateral wall between second screen cloth and the third screen cloth, and the intercommunication is provided with on the screening case lateral wall between third screen cloth and the case intake pipe 34.
Like this, the intake pipe enters into the box from third screen cloth below, forms ascending air current atmospheric pressure under the outlet duct guide effect, then partial air current flows out the pressure release from the second outlet duct between second screen cloth and the third screen cloth, and remaining part air current atmospheric pressure continues upwards to pass through the second screen cloth, flows out the pressure release from the first outlet duct between second screen cloth and the first screen cloth. This results in no upward airflow pressure on the first screen and a gradual increase in upward airflow pressure on the second to third screens. So the material enters into first screen cloth after, can realize the normal screening of once earlier for satisfy the material that the granule particle size required and leak down from first screen cloth, the ejection of compact section of thick bamboo ejection of compact of the great material of granule from first screen cloth right side. Then the materials meeting the requirement of the granularity fall onto a second screen, and are subjected to air pressure airflow in a certain direction while being subjected to vibrating screening by the second screen, so that lighter materials (the main part of the membrane material) stay above the second screen and are finally discharged from a corresponding discharge cylinder. The rest materials fall downwards into the third screen, are vibrated and screened by the third screen and simultaneously bear larger upward air pressure airflow, so that the light materials (the anode and cathode materials are main parts, such as lithium cobaltate, ternary materials, graphite materials and the like) stay above the third screen and are finally discharged from the corresponding discharging barrel. Finally, the heaviest remaining material (mainly made of metal material) passes through the third screen downwards and falls into a collecting box. Therefore, the screening of materials with different specific gravities according to different materials can be better finished. Simultaneously, the device can realize primary screening of the particle size of the material. Therefore, the screening device can be directly applied to screening recovery treatment of crushed waste lithium battery materials or waste lithium battery electrode materials, and can also be used together with the existing screening device in the background technology, the screening device in the background technology finishes screening the particle size requirement, and then the screening device enters the device for further treatment, so that the screening requirement can be better met. In addition, when the device is implemented, the mesh sizes of the three screens are generally the same, but the mesh sizes can be adjusted to be the same within a certain range on the basis of meeting the air pressure screening process, so as to better ensure the final screening effect.
Wherein, first outlet duct and second outlet duct all correspond and are provided with flow control valve, still install first baroceptor (not shown in the figure) on the screening case lateral wall that first outlet duct corresponds, flow control valve (not shown in the figure) correlation setting on first baroceptor and the first outlet duct, still install second baroceptor (not shown in the figure) on the screening case lateral wall that the second outlet duct corresponds, flow control valve (not shown in the figure) correlation setting on second baroceptor and the second outlet duct.
Therefore, the air pressure in the corresponding chamber can be detected through the first air pressure sensor and the second air pressure sensor, and if the air pressure is too large, the air exhaust flow is increased by correspondingly adjusting the associated flow regulating valve so as to reduce the air pressure. Therefore, the air pressure control can be better realized, and the air pressure auxiliary filtering and screening effect can be more reliably ensured.
A plurality of air inlet pipes 34 are uniformly distributed, and the outer ends of the air inlet pipes are connected with an air inlet manifold (not shown in the figure); the first air outlet pipe is provided with a plurality of uniformly distributed first air outlet pipes, and the outer end of each first air outlet pipe is connected with a first air outlet header pipe (not shown in the figure); the second air outlet pipe is provided with a plurality of uniformly distributed second air outlet pipes, and the outer end of each second air outlet pipe is connected with a second air outlet header pipe (not shown in the figure).
Thus, air can be uniformly and dispersedly fed and discharged. During implementation, the flow regulating valve can be respectively arranged on the first air outlet main pipe and the second air outlet main pipe, so that the installation quantity is reduced, and the control is convenient.
Wherein, the inlets of the first air outlet pipe 32 and the second air outlet pipe 33 are both provided with a filter screen. Thus, the materials can be prevented from being brought out by the air flow.
Wherein, the outer ends of the first air outlet pipe and the second air outlet pipe are connected with a bag-type dust remover (not shown in the figure). Dust can be removed better.
Wherein, the play feed cylinder includes an outside below slope section 20, and the outer end of slope section 20 is collected to the middle part and is gathered together and be connected with a decurrent vertical cylinder section 24, installs ejection of compact switch valve 25 on the vertical cylinder section.
Like this, when the device uses, can close ejection of compact ooff valve earlier, avoid losing the air, treat that partial material enters into out the feed cylinder and forms the air current and seal the back, open ejection of compact ooff valve (adjustable closure degree size) ejection of compact again, the material is followed a feed cylinder and is gathered together and form the air current and shield the ejection of compact downwards from the vertical retort section after blocking to its outer end collection, so can guarantee the normal ejection of compact of screening processing in-process material and this in-process better and maintain the stability of cavity internal gas pressure, with the supplementary screening effect of assurance atmospheric pressure.
When the material receiving device is used, the material receiving device comprises a material receiving frame 22, three material receiving boxes 23 are distributed on the material receiving frame 22 along the height direction, and the height of each material receiving box 23 corresponds to the outlet height of the corresponding material discharging barrel and is used for receiving materials. The lower end of the chassis 21 at the lower part of the material receiving frame is further provided with a roller 28 with a self-locking function, so that the material receiving frame is convenient to push and receive materials.

Claims (10)

1. A screening method for a lithium battery recycled material based on unilateral vibration screening is characterized in that the screen adopts single-end vibration, the material is fed from the vibration end of the screen, the material is gradually shaken from the feeding end to the other end to be gathered and discharged, and the material is screened in a flowing water type in the process.
2. The method for screening recycled lithium battery materials based on single-sided vibratory screening as recited in claim 1, wherein the screening is performed by using at least two modes of superposition of vibration amplitudes.
3. The screening method of the lithium battery recycled material based on the unilateral vibration screening as claimed in claim 1, wherein the method is realized by means of a unilateral vibration lithium battery recycled material screening device, the unilateral vibration lithium battery recycled material screening device comprises a screening box, a feeding hole is formed in the top of the screening box, a plurality of layers of horizontally arranged screens are arranged in the screening box at intervals up and down, a screen vibrating device is further arranged in the screening box and connected with each layer of screen, and a discharging barrel is arranged on the screening box on one side of each layer of screen; screening case horizontal cross-section and screen cloth are the rectangle that corresponds, and screen cloth length direction's one end is the discharge end, and the discharge end is shelved on the screen cloth mount table of screening incasement wall and is linked up with the play feed cylinder, and screen cloth length direction's the other end is the feed end, and the feed end and the screen cloth vibrating device of screen cloth link to each other and can be driven vertical vibration, and set up on the screening roof surface of screen cloth feed end top the feed inlet.
4. The screening method for lithium battery recycled materials based on unilateral vibration screening as recited in claim 3, wherein the feeding port is provided with a feeding mechanism, the feeding mechanism comprises a feeding box, the feeding box is internally provided with a horizontally arranged cylindrical feeding cavity, a feeding funnel is arranged above one end of the cylindrical feeding cavity in a communication manner, the other end of the cylindrical feeding cavity is connected with the feeding port downwards, a feeding screw shaft is arranged in the cylindrical feeding cavity in a matching manner, and one end of the feeding screw shaft is connected with feeding power equipment;
the feeding box is positioned between the end part of the cylindrical feeding cavity and the feeding hole, a strip-shaped refining cavity is arranged perpendicular to the cylindrical feeding cavity, the lower surface of the end part of the cylindrical feeding cavity, which is positioned above the feeding hole, is provided with an outlet which is connected with the middle part of the refining cavity, the length direction of the refining cavity is arranged along the width direction of the screening box, a refining shaft is arranged in the refining cavity along the length direction of the refining shaft, two groups of opposite refining spiral blades are symmetrically arranged on the refining shaft, and the feeding hole is distributed below the refining cavity along the length direction of the refining cavity; the tail end of the feeding screw shaft penetrates out of the cylindrical feeding cavity and is fixedly provided with a driving bevel gear, the driving bevel gear is positioned in a transmission cavity inside the feeding box and is meshed with a vertically arranged driven bevel gear, the driven bevel gear is coaxially and fixedly provided with a driving gear, the driving gear is downwards meshed with a driven gear, and a mounting shaft of the driven gear is in transmission connection with the end part of the refining shaft through a synchronous belt.
5. The method as claimed in claim 4, wherein the feeding hole has a narrow middle part and a width gradually widening from the middle part to both sides.
6. The screening method for lithium battery recycled materials based on unilateral vibration screening as claimed in claim 3, wherein the screen mesh vibrating device comprises a motor located outside the screening box, a tooth-missing gear is installed on an output shaft of the motor along a vertical direction, only one section of gear teeth is arranged on the periphery of the tooth-missing gear, a transmission gear frame capable of moving up and down is arranged on an outer frame of the tooth-missing gear, racks are respectively arranged on two sides of an inner wall of the transmission gear frame, the gear teeth on the tooth-missing gear can be meshed with the corresponding racks after the tooth-missing gear rotates to a corresponding direction and drive the transmission gear frame to move up and down, a driving connecting plate is fixedly connected to the lower end of the transmission gear frame, the driving connecting plate is connected to a horizontally arranged horizontal connecting plate, the horizontal connecting plate horizontally penetrates through a through hole located in the side wall of the screening box and is fixedly connected to a vertically arranged baffle, a screen mesh fixing table is installed in the middle of one side of the baffle facing the screen mesh and is connected to the feed end of the screen mesh, and one side of the baffle facing away from the screen mesh is attached to the inner wall of the screening box and can shield the through hole.
7. The method as claimed in claim 6, wherein the end of the driving connecting plate, which is connected to the horizontal connecting plate, is provided with a horizontal connecting plate mounting hole, the end of the horizontal connecting plate is vertically movably mounted in the horizontal connecting plate mounting hole, and when the horizontal connecting plate is in the initial state of movement, the end of the horizontal connecting plate is attached to the lower surface of the horizontal connecting plate mounting hole and spaced from the upper surface of the horizontal connecting plate mounting hole; when the horizontal connecting plate moves to the screen horizontal state, the middle position of the gear teeth of the gear with the missing teeth is meshed with the middle position of the rack on the corresponding side.
8. The screening method for the lithium battery recycled materials based on the unilateral vibration screening as claimed in claim 7, wherein a vertically arranged amplitude spring is fixedly connected in the through hole and between the horizontal connecting plates.
9. The method for screening recycled materials of lithium batteries based on single-sided vibratory screening of claim 7, wherein a block is detachably and fixedly connected to the upper surface of the mounting hole of the horizontal connection plate by means of a screw.
10. The screening method for the lithium battery recycled materials based on the unilateral vibration screening as recited in claim 7, wherein a transmission box is arranged outside the screening box, and the toothless gear, the transmission toothed frame and the driving connecting plate are positioned in the transmission box;
one end of the feeding screw shaft is connected with an output shaft of the motor, and the motor forms the feeding power equipment;
the lower end of the outer side of the screening box is provided with a supporting leg;
an air inlet pipe is also communicated and arranged on the side wall of the screening box below any screen.
CN202211205744.8A 2022-09-30 2022-09-30 Screening method for lithium battery recycled materials based on unilateral vibration screening Pending CN115400943A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106311429A (en) * 2016-11-07 2017-01-11 郑州游爱网络技术有限公司 Sandstone grinding and screening plant for construction engineering
CN211168990U (en) * 2019-12-03 2020-08-04 浙江特富锅炉有限公司 Metering gas shell powder feeding device
CN211488586U (en) * 2019-12-31 2020-09-15 宜宾学院 Raw materials screening plant extracts oil
JP2020195995A (en) * 2019-06-04 2020-12-10 楽 康Le, Kang Equipment for collection, sorting and reuse of waste metal at construction site
CN113291860A (en) * 2021-05-19 2021-08-24 山东省十里香芝麻制品股份有限公司 Feed mechanism is used in sesame oil production
CN114377956A (en) * 2020-06-19 2022-04-22 长江师范学院 Material sorting facilities pan feeding mouth structure is retrieved to lithium cell
CN216937004U (en) * 2022-03-01 2022-07-12 西安交通大学 Built-in vibrating screen type waste lithium battery diaphragm collecting box

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106311429A (en) * 2016-11-07 2017-01-11 郑州游爱网络技术有限公司 Sandstone grinding and screening plant for construction engineering
JP2020195995A (en) * 2019-06-04 2020-12-10 楽 康Le, Kang Equipment for collection, sorting and reuse of waste metal at construction site
CN211168990U (en) * 2019-12-03 2020-08-04 浙江特富锅炉有限公司 Metering gas shell powder feeding device
CN211488586U (en) * 2019-12-31 2020-09-15 宜宾学院 Raw materials screening plant extracts oil
CN114377956A (en) * 2020-06-19 2022-04-22 长江师范学院 Material sorting facilities pan feeding mouth structure is retrieved to lithium cell
CN113291860A (en) * 2021-05-19 2021-08-24 山东省十里香芝麻制品股份有限公司 Feed mechanism is used in sesame oil production
CN216937004U (en) * 2022-03-01 2022-07-12 西安交通大学 Built-in vibrating screen type waste lithium battery diaphragm collecting box

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