CN113856842A - Low-temperature freezing and crushing device for waste lithium batteries - Google Patents

Low-temperature freezing and crushing device for waste lithium batteries Download PDF

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Publication number
CN113856842A
CN113856842A CN202111015165.2A CN202111015165A CN113856842A CN 113856842 A CN113856842 A CN 113856842A CN 202111015165 A CN202111015165 A CN 202111015165A CN 113856842 A CN113856842 A CN 113856842A
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CN
China
Prior art keywords
liquid nitrogen
crushing
lithium batteries
tray
waste lithium
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Granted
Application number
CN202111015165.2A
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Chinese (zh)
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CN113856842B (en
Inventor
赵志安
闫修林
朱伯伦
杨徐烽
钱华
陈云
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Anhui Xien Recycling Technology Co ltd
Shanghai Cn Science And Technology Co ltd
Chizhou Cn New Material Technology Co ltd
Original Assignee
Anhui Xien Recycling Technology Co ltd
Shanghai Cn Science And Technology Co ltd
Chizhou Cn New Material Technology Co ltd
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Priority to CN202111015165.2A priority Critical patent/CN113856842B/en
Publication of CN113856842A publication Critical patent/CN113856842A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/02Disintegrating by knives or other cutting or tearing members which chop material into fragments with reciprocating knives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/02Disintegrating by knives or other cutting or tearing members which chop material into fragments with reciprocating knives
    • B02C18/04Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02Feeding devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/04Safety devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/84Recycling of batteries or fuel cells

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Processing Of Solid Wastes (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Primary Cells (AREA)

Abstract

The invention provides a low-temperature freezing and crushing device for waste lithium batteries, which comprises a feeding assembly, a crushing assembly and a crushing assembly, wherein the feeding assembly comprises a feeding pipe, and one end of the feeding pipe extends into the freezing and crushing assembly; the freezing and crushing assembly comprises a liquid nitrogen bin, a platform mechanism and a crushing mechanism, wherein a cavity is arranged inside the liquid nitrogen bin, liquid nitrogen is filled in the cavity, a first hole is formed in the top end of the liquid nitrogen bin, a feed pipe extends into the liquid nitrogen bin from the first hole, the platform mechanism is arranged in the cavity of the liquid nitrogen bin, the crushing mechanism is arranged at the upper end of the cavity, and the platform mechanism is located at the upper end of the crushing mechanism; and one end of the discharging component is arranged in the liquid nitrogen bin, a second hole is formed in the bottom of the liquid nitrogen bin, and the other end of the discharging component extends out of the liquid nitrogen bin from the second hole.

Description

Low-temperature freezing and crushing device for waste lithium batteries
Technical Field
The invention relates to the technical field of waste battery treatment, in particular to a low-temperature freezing and crushing device for waste lithium batteries.
Background
In recent years, with the popularization of electronic and electric devices, lithium batteries have been widely used, which mainly include a case, a positive electrode, a negative electrode, an electrolyte, and a separator. Nowadays, how to effectively separate the waste lithium battery component materials, realize the reclamation of the waste lithium batteries to the maximum extent and eliminate the corresponding environmental impact is a very important and urgent problem. Poisonous gas and liquid can be produced in the separation process of the waste lithium battery, the electrolyte with strong corrosivity contains poisonous, harmful and inflammable substances and can produce poisonous gas, the environment is extremely easily polluted and serious damage is caused to human bodies, and some organic solvents in the electrolyte are difficult to degrade in nature and can cause serious pollution to water sources, atmosphere and soil.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
Therefore, the technical problem to be solved by the invention is to overcome the defect of how to effectively separate the lithium batteries in the prior art, so that the low-temperature freezing and crushing device for the waste lithium batteries is provided.
In order to solve the technical problems, the invention provides the following technical scheme: the low-temperature freezing and crushing device for the waste lithium batteries comprises a feeding assembly, a freezing and crushing assembly and a crushing assembly, wherein the feeding assembly comprises a feeding pipe, and one end of the feeding pipe extends into the freezing and crushing assembly; the freezing and crushing assembly comprises a liquid nitrogen bin, a platform mechanism and a crushing mechanism, wherein a cavity is arranged inside the liquid nitrogen bin, liquid nitrogen is filled in the cavity, a first hole is formed in the top end of the liquid nitrogen bin, a feed pipe extends into the liquid nitrogen bin from the first hole, the platform mechanism is arranged in the cavity of the liquid nitrogen bin, the crushing mechanism is arranged at the upper end of the cavity, and the platform mechanism is located at the upper end of the crushing mechanism; and one end of the discharging component is arranged in the liquid nitrogen bin, a second hole is formed in the bottom of the liquid nitrogen bin, and the other end of the discharging component extends out of the liquid nitrogen bin from the second hole.
As a preferred scheme of the low-temperature freezing and crushing device for the waste lithium batteries, the device comprises the following steps: the device is characterized in that a driving assembly is arranged on the feeding pipe and is positioned at the top end of the liquid nitrogen bin.
As a preferred scheme of the low-temperature freezing and crushing device for the waste lithium batteries, the device comprises the following steps: drive assembly includes servo motor, first gear and second gear, servo motor one end is fixed on liquid nitrogen storehouse top, first gear box is established on servo motor's the output shaft, the inlet pipe surface is equipped with the external screw thread, be equipped with third hole on the second gear, third hole internal surface is equipped with the internal thread, second gear cover establish on the inlet pipe with inlet pipe threaded connection, second gear and first gear engagement.
As a preferred scheme of the low-temperature freezing and crushing device for the waste lithium batteries, the device comprises the following steps: platform mechanism includes the tray, it is protruding to go up to be equipped with in the middle of the tray, the arch is conical, go up a plurality of first perpendicular grooves of tray edge circumferencial direction evenly distributed, the inlet pipe is in the liquid nitrogen storehouse with protruding butt.
As a preferred scheme of the low-temperature freezing and crushing device for the waste lithium batteries, the device comprises the following steps: the crushing mechanism comprises a cutter and a telescopic rod, one end of the telescopic rod is fixed to the top end of the cavity of the liquid nitrogen bin, and the other end of the telescopic rod is provided with the cutter.
As a preferred scheme of the low-temperature freezing and crushing device for the waste lithium batteries, the device comprises the following steps: the discharging assembly comprises a discharging mechanism and a springback mechanism, the discharging mechanism is located below the platform mechanism, and the springback mechanism is located on the outer side of the lower end of the liquid nitrogen bin.
As a preferred scheme of the low-temperature freezing and crushing device for the waste lithium batteries, the device comprises the following steps: discharging mechanism includes tray and discharging pipe down, be equipped with the recess on the tray down, the recess is conical, evenly be equipped with a plurality of seconds along the circumferencial direction on the tray down and erect the groove, the second erects all to be equipped with the filter screen on the groove, tray lower extreme fixed connection discharging pipe down.
As a preferred scheme of the low-temperature freezing and crushing device for the waste lithium batteries, the device comprises the following steps: the rebounding mechanism comprises a first stop block, a second stop block and a spring, the first stop block is fixed to the outer side of the discharging pipe, the second stop block is fixed to the bottom end of the liquid nitrogen bin, a cavity is formed between the second stop block and the liquid nitrogen bin, the first stop block is located in the cavity, one end of the spring is fixedly connected with the first stop block, and the other end of the spring is fixedly connected with the second stop block.
As a preferred scheme of the low-temperature freezing and crushing device for the waste lithium batteries, the device comprises the following steps: the upper tray is provided with a plurality of elastic pieces, and one side of each elastic piece is fixedly connected to one surface, close to the lower tray, of the upper tray.
As a preferred scheme of the low-temperature freezing and crushing device for the waste lithium batteries, the device comprises the following steps: and one end of the discharge pipe, which is far away from the liquid nitrogen bin, is fixedly connected with the cracking furnace.
The invention has the beneficial effects that:
1. waste lithium batteries are directly cooled by liquid nitrogen, and cutters are protected during crushing;
2. the lithium battery is cooled and crushed and placed in the same device, so that the space is effectively saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic view of the entire structure of embodiment 1;
FIG. 2 is a schematic structural view of a stage mechanism;
FIG. 3 is a schematic view of the driving mechanism;
FIG. 4 is a schematic structural view of a rebound mechanism;
FIG. 5 is a schematic structural view of the mechanism of embodiment 2;
FIG. 6 is a schematic view of the crushing mechanism;
FIG. 7 is a schematic view of the entire structure of embodiment 3;
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Example 1
The embodiment provides a low-temperature freezing and crushing device for waste lithium batteries, as shown in figures 1-2,
the device comprises a feeding assembly 100, wherein the feeding assembly 100 comprises a feeding pipe 101, and one end of the feeding pipe 101 extends into the freezing and crushing assembly 200; the freezing and crushing assembly 200 comprises a liquid nitrogen bin 201, a platform mechanism 202 and a crushing mechanism 203, wherein a cavity is arranged inside the liquid nitrogen bin 201, liquid nitrogen is filled in the cavity, a first hole is formed in the top end of the liquid nitrogen bin 201, a feeding pipe 101 extends into the liquid nitrogen bin 201 from the first hole, the platform mechanism 202 is arranged in the cavity of the liquid nitrogen bin 201, the crushing mechanism 203 is arranged at the upper end of the cavity, and the platform mechanism 202 is located at the upper end of the crushing mechanism 203; and the discharging component 300, one end of the discharging component 300 is arranged in the liquid nitrogen bin 201, the bottom of the liquid nitrogen bin 201 is provided with a second hole, and the other end of the discharging component 300 extends out of the liquid nitrogen bin 201 from the second hole.
Waste lithium batteries are fed into the feeding pipe 101, and the feeding pipe 101 vertically extends into the liquid nitrogen bin 201 downwards, so that the waste lithium batteries enter the liquid nitrogen bin 201 from one end of the feeding pipe 101 by means of self gravity. A platform mechanism 202 is arranged in the liquid nitrogen bin 201, and one end of the feeding pipe 101 in the liquid nitrogen bin 201 is located at the upper end of the platform mechanism 202, so that waste lithium batteries fall into the upper surface of the platform mechanism 202 in the liquid nitrogen bin 201.
The liquid nitrogen bin 201 contains liquid nitrogen, and the platform mechanism 202 is submerged in the liquid nitrogen, so the waste lithium battery can be soaked by liquid nitrogen solution after entering the liquid nitrogen bin 201 from the feeding pipe 101, the liquid nitrogen is liquid nitrogen, and the liquid nitrogen is inert, colorless, odorless, noncorrosive, nonflammable and extremely low-temperature liquid. Therefore, the waste lithium batteries can be rapidly cooled to be in a frozen state after being soaked in liquid nitrogen for a moment, and intermolecular forces of all components of the waste lithium batteries are reduced, so that the brittleness of the waste lithium batteries is greatly increased, and the waste lithium batteries are easier to break. The soaked waste lithium batteries are crushed under the action of the crushing mechanism 203 and then discharged out of the liquid nitrogen bin 201 through the discharging assembly 300.
The waste lithium battery is subjected to liquid nitrogen freezing and then is crushed, the crushing difficulty is reduced, meanwhile, the phenomenon that the temperature of crushing machinery is greatly increased due to heating of the waste lithium battery in the crushing process due to short circuit discharge is avoided, especially the temperature of a crushing cutter is increased, and the service life of equipment is effectively prolonged.
The platform mechanism 202 comprises an upper tray 202a, a protrusion is arranged in the middle of the upper tray 202a and is conical, a plurality of first vertical grooves 202a-1 are uniformly distributed in the upper tray 202a along the circumferential direction, and the feeding pipe 101 is abutted to the protrusion in the liquid nitrogen bin 201.
The feeding pipe 101 abuts against the upper tray 202a, so that when the feeding pipe 101 contacts with the upper surface of the upper tray 202a, a feeding channel is blocked, and the waste lithium batteries cannot fall into the upper surface of the upper tray 202 a; when the feeding pipe 101 is separated from the surface of the upper tray 202a, a gap is formed between the feeding pipe 101 and the upper tray 202a, and the waste lithium batteries can fall onto the upper tray 202a from the gap. Because the upper surface of the upper tray 202a is provided with the protrusions, the waste lithium batteries can slide to the protruding edges from the protruding upper top ends, and further more waste lithium batteries can be placed on the upper tray 202a at one time.
The upper tray 202a is uniformly distributed with a plurality of first vertical grooves 202a-1 along the circumferential direction, the first vertical grooves 202a-1 are through grooves, and the cross-sectional area of the first vertical grooves 202a-1 is smaller than any orthogonal cross-sectional area of the waste lithium batteries, so that the waste lithium batteries cannot pass through the first vertical grooves 202a-1 when not crushed. The crushed slag of the lithium battery can pass through the first vertical groove 202a-1 to enter the discharging assembly 300, and is transported to the next working procedure operation place by the discharging assembly 300.
Example 2
The present embodiment provides a low-temperature freezing and crushing device for waste lithium batteries, as shown in fig. 2 to 5, which is based on embodiment 1 but differs from embodiment 1 in that:
the feeding pipe 101 is provided with a driving assembly 400, and the driving assembly 400 is positioned at the top end of the liquid nitrogen bin 201.
The driving assembly 400 comprises a servo motor 401, a first gear 402 and a second gear 403, one end of the servo motor 401 is fixed to the top end of the liquid nitrogen bin 201, the first gear 402 is sleeved on an output shaft of the servo motor 401, an external thread is arranged on the outer surface of the feeding pipe 101, a third hole is formed in the second gear 403, an internal thread is arranged on the inner surface of the third hole, the second gear 403 is sleeved on the feeding pipe 101 and is in threaded connection with the feeding pipe 101, and the second gear 403 is meshed with the first gear 402.
The servo motor 401 drives the first gear 402 to rotate by using the output shaft, and the first gear 402 is meshed with the second gear 403, so that the first gear 402 drives the second gear 403 to rotate, and the second gear 403 is in threaded connection with the feeding pipe 101, so that when the second gear 403 rotates, the feeding pipe 101 can displace up and down.
The crushing mechanism 203 comprises a cutter 203a and an expansion link 203b, one end of the expansion link 203b is fixed at the top end of the cavity of the liquid nitrogen bin 201, and the other end of the expansion link 203b is provided with the cutter 203 a. The telescopic rod 203b drives the cutter 203a to move up and down to crush the waste lithium battery.
Discharging assembly 300 includes discharging mechanism 301 and resilience mechanism 302, and discharging mechanism 301 is located platform mechanism 202 below, and resilience mechanism 302 is located the outside of liquid nitrogen bin 201 lower extreme.
The discharging mechanism 301 comprises a lower tray 301a and a discharging pipe 301b, a groove is formed in the lower tray 301a and is conical, a plurality of second vertical grooves 301a-1 are uniformly formed in the lower tray 301a along the circumferential direction, filter screens are arranged on the second vertical grooves 301a-1, and the discharging pipe 301b is fixedly connected to the lower end of the lower tray 301 a.
The upper tray 202a is provided with a plurality of elastic pieces 202a-2, and one side of the elastic pieces 202a-2 is fixedly connected to one surface of the upper tray 202a close to the lower tray 301 a.
The lower tray 301a contacts the upper tray 202a, and the elastic piece 202a-2 is disposed between the lower tray 301a and the upper tray 202a, so that the upper tray 202a is separated from the lower tray 301a by the elastic piece 202 a-2. When the upper tray 202a is separated from the lower tray 301a, crushed waste lithium batteries fall into the lower tray 301a from the first vertical groove 202a-1, and since the lower tray 301a is provided with a groove which is conical, crushed lithium battery fragments can slide into the discharge pipe 301b along the side wall of the groove, and then are discharged out of the freezing and crushing assembly 200.
The rebound mechanism 302 is arranged at the bottom of the liquid nitrogen bin 201, the lower tray 301a is jacked up by the rebound mechanism 302, and the upper tray 202a is jacked up by the lower tray 301a, so that the lithium battery to be crushed on the upper tray 202a can be crushed after the upper tray 202a is completely lifted from the liquid nitrogen, and the service life of the crushing mechanism 203 is effectively prolonged.
The lower tray 301a is provided with a plurality of second vertical grooves 301a-1, and the second vertical grooves 301a-1 are provided with filter screens, so that crushed lithium batteries cannot pass through the filter screens, and crushed lithium battery fragments can be discharged from the discharge pipe 301 b. And the redundant liquid nitrogen brought by the soaked lithium battery can fall into the liquid nitrogen bin 201 from the filter screen, so that the cost is reduced, and the energy is saved.
Example 3
The present embodiment provides a low-temperature freezing and crushing device for waste lithium batteries, as shown in fig. 2 to fig. 7, which is based on embodiment 1 and embodiment 2 but differs from embodiment 1 and embodiment 2 in that:
one end of the discharge pipe 301b far away from the liquid nitrogen bin 201 is fixedly connected with the cracking furnace 500.
The rebound mechanism 302 is used for jacking the lower tray 301a, so that the waste lithium battery is crushed above the liquid nitrogen liquid level, and the crushing cutter 203a is effectively protected. The rebounding mechanism 302 comprises a first stop block 302a, a second stop block 302b and a spring 302c, wherein the first stop block 302a is annularly sleeved on the outer side of the discharge pipe 301b and is fixedly connected with the discharge pipe 301 b; second dog 302b one end fixed connection liquid nitrogen storehouse 201 outside lower surface, second dog 302b and liquid nitrogen storehouse 201 formation cavity, inside first dog 302a was located this cavity, second dog 302b kept away from liquid nitrogen storehouse 201 one end and is equipped with the through-hole, and discharging pipe 301b stretches out from the through-hole, fixedly connected with spring 302c between first dog 302a and the second dog 302 b.
The waste lithium battery slag discharged from the discharge port falls into the cracking furnace 500 from the liquid nitrogen bin 201 under the action of gravity, and is subjected to anaerobic cracking carbonization in the cracking furnace 500 and then is recycled.
The specific operation process comprises the following steps: the operator pours the lithium battery to be crushed into the feeding pipe 101 from the inlet of the feeding pipe 101, the lithium battery enters the upper surface of the upper tray 202a from the gap between the feeding pipe 101 and the upper tray 202a, when the rated crushing bearing capacity of the upper tray 202a is reached, the switch of the servo motor 401 is opened, the servo motor 401 is driven by the first gear 402 and the second gear 403, the feeding pipe 101 moves downwards, one end of the feeding pipe 101 in the liquid nitrogen bin 201 slowly abuts against the upper tray 202a, a gap between the feeding pipe 101 and the upper tray 202a disappears, the waste lithium battery stops being conveyed to the upper tray 202a, the servo motor 401 continuously controls the feeding pipe 101 to move downwards, after the feeding pipe 101 moves downwards for a certain distance, the upper tray 202a and the lower tray 301a overcome the elastic force of the elastic sheet 202a-2, the upper tray 202a is in close contact with the lower tray 301a, and then the lower tray 301a compresses the spring 302c while moving downwards slowly.
At this time, the upper tray 202a and the lower tray 301a are both in liquid nitrogen, the waste lithium batteries on the upper tray 202a are soaked in the liquid nitrogen, the soaking time is determined according to the volume of the lithium batteries, after the soaking time of the lithium batteries is reached, the servo motor 401 is controlled to turn over, the feeding pipe 101 moves upwards, the pressure on the upper tray 202a disappears, the discharging pipe 301b and the lower tray 301a move upwards under the action of the spring 302c, the lower tray 301a abuts against the upper tray 202a to move upwards until the stroke of the spring 302c is finished, and at this time, the lower tray 301a and the upper tray 202a both exceed the upper surface of the liquid nitrogen. When the spring 302c finishes the stroke, the lower tray 301a stops moving upwards, at this time, the upper tray 202a continues moving upwards under the supporting force of the elastic sheet 202a-2, and the liquid nitrogen remained on the upper tray 202a falls from the first vertical groove 202a-1 to the lower tray 301a and then falls from the second vertical groove 301a-1 on the lower tray 301a to the liquid nitrogen.
The feeding pipe 101 continuously moves upwards until the elastic sheet 202a-2 is not stressed, the crushing mechanism 203 is driven to drive the cutter 203a to crush the lithium battery at the moment, the crushed lithium battery falls into the lower tray 301a from the first vertical groove 202a-1, and the crushed lithium battery cannot fall into the liquid nitrogen bin 201 due to the fact that the filter screen is arranged in the second vertical groove 301a-1, and then all the crushed lithium battery is discharged out of the liquid nitrogen bin 201 from the discharging pipe 301b and enters the cracking furnace 500.
The feeding pipe 101 continues to move upwards, and the gap between the feeding pipe 101 and the upper tray 202a increases until a new round of waste lithium batteries enters the upper end of the upper tray 202a from the feeding pipe 101 for the next round of circulation.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (10)

1. The utility model provides a freezing breaker of low temperature of old and useless lithium cell which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a feed assembly (100), the feed assembly (100) comprising a feed tube (101), one end of the feed tube (101) extending into the interior of the freeze-crushing assembly (200);
the freezing and crushing assembly (200) comprises a liquid nitrogen bin (201), a platform mechanism (202) and a crushing mechanism (203), a cavity is arranged inside the liquid nitrogen bin (201), liquid nitrogen is filled in the cavity, a first hole is formed in the top end of the liquid nitrogen bin (201), the feeding pipe (101) extends into the liquid nitrogen bin (201) from the first hole, the platform mechanism (202) is arranged in the cavity of the liquid nitrogen bin (201), the crushing mechanism (203) is arranged at the upper end of the cavity, and the platform mechanism (202) is located at the upper end of the crushing mechanism (203); and the number of the first and second groups,
the liquid nitrogen discharging device comprises a discharging component (300), one end of the discharging component (300) is arranged in a liquid nitrogen bin (201), a second hole is formed in the bottom of the liquid nitrogen bin (201), and the other end of the discharging component (300) extends out of the liquid nitrogen bin (201) from the second hole.
2. The low-temperature freezing and crushing device for the waste lithium batteries as claimed in claim 1, wherein: be equipped with drive assembly (400) on inlet pipe (101), drive assembly (400) are located liquid nitrogen storehouse (201) top.
3. The low-temperature freezing and crushing device for the waste lithium batteries as claimed in claim 1, wherein: drive assembly (400) includes servo motor (401), first gear (402) and second gear (403), liquid nitrogen storehouse (201) top is fixed to servo motor (401) one end, first gear (402) cover is established on servo motor (401)'s the output shaft, inlet pipe (101) surface is equipped with the external screw thread, be equipped with third hole on second gear (403), third hole internal surface is equipped with the internal thread, second gear (403) cover is established on inlet pipe (101) with inlet pipe (101) threaded connection, second gear (403) and first gear (402) meshing.
4. The low-temperature freezing and crushing device for the waste lithium batteries as claimed in claim 1, wherein: platform mechanism (202) include tray (202a), it is equipped with the arch to go up in the middle of tray (202a), the arch is conical, go up tray (202a) along a plurality of first vertical slots (202a-1) of circumferencial direction evenly distributed, inlet pipe (101) in liquid nitrogen storehouse (201) with protruding butt.
5. The low-temperature freezing and crushing device for the waste lithium batteries as claimed in claim 1, wherein: the crushing mechanism (203) comprises a cutter (203a) and an expansion link (203b), one end of the expansion link (203b) is fixed at the top end of the cavity of the liquid nitrogen bin (201), and the other end of the expansion link (203b) is provided with the cutter (203 a).
6. The low-temperature freezing and crushing device for the waste lithium batteries as claimed in claim 1, wherein: the discharging assembly (300) comprises a discharging mechanism (301) and a springback mechanism (302), the discharging mechanism (301) is located below the platform mechanism (202), and the springback mechanism (302) is located on the outer side of the lower end of the liquid nitrogen bin (201).
7. The low-temperature freezing and crushing device for the waste lithium batteries as claimed in claim 1, wherein: discharge mechanism (301) are including tray (301a) and discharging pipe (301b) down, be equipped with the recess on tray (301a) down, the recess is conical, evenly be equipped with a plurality of seconds on tray (301a) down and erect groove (301a-1) along the circumferencial direction, the second is erect and all is equipped with the filter screen on groove (301a-1), tray (301a) lower extreme fixed connection discharging pipe (301b) down.
8. The low-temperature freezing and crushing device for the waste lithium batteries as claimed in claim 1, wherein: the rebounding mechanism (302) comprises a first stop block (302a), a second stop block (302b) and a spring (302c), the first stop block (302a) is fixed to the outer side of the discharging pipe (301b), the second stop block (302b) is fixed to the bottom end of the liquid nitrogen bin (201), a cavity is formed between the second stop block (302b) and the liquid nitrogen bin (201), the first stop block (302a) is located in the cavity, one end of the spring (302c) is fixedly connected with the first stop block (302a), and the other end of the spring (302c) is fixedly connected with the second stop block (302 b).
9. The low-temperature freezing and crushing device for the waste lithium batteries as claimed in claim 1, wherein: a plurality of elastic sheets (202a-2) are arranged on the upper tray (202a), and one sides of the elastic sheets (202a-2) are fixedly connected to one surface of the upper tray (202a) close to the lower tray (301 a).
10. The low-temperature freezing and crushing device for the waste lithium batteries as claimed in claim 1, wherein: one end, far away from the liquid nitrogen bin (201), of the discharge pipe (301b) is fixedly connected with the cracking furnace (500).
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