CN211376875U

CN211376875U - Lithium battery pretreatment device

Info

Publication number: CN211376875U
Application number: CN202020201593.9U
Authority: CN
Inventors: 蔡朝阳; 高小磊; 张旭岩
Original assignee: Wenxian Lvjie Environmental Protection Machinery Co ltd
Current assignee: Wenxian Lvjie Environmental Protection Machinery Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-08-28
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses a lithium battery pretreatment device, which comprises a precooling device and a violent short-circuit discharging device; the pre-cooling device comprises a conveying assembly and a refrigerant jet device, wherein the refrigerant jet device is arranged on the conveying assembly and is used for cooling the lithium battery arranged on the conveying assembly; the violent short-circuit discharge device comprises a mounting plate, a telescopic mechanism and a V-shaped transmission mechanism, wherein the telescopic mechanism is fixedly mounted on the mounting plate, the free telescopic end of the telescopic mechanism faces downwards, and a violent crushing cutter is mounted at the free end of the telescopic mechanism; the utility model discloses treat the lithium cell of retrieving through precooling apparatus earlier and carry out cryogenic treatment to the lithium cell after making the absorption cold volume absorbs the produced heat of chemical reaction at the short circuit discharge in-process, makes the stability of short circuit discharge process back battery at safe controllable within range, reduces the risk that the battery took place to explode, makes the short circuit discharge process safer, has improved work efficiency moreover.

Description

Lithium battery pretreatment device

Technical Field

The utility model relates to a lithium cell recovery processing technology field, concretely relates to processing apparatus before lithium cell.

Background

Lithium battery recovery generally comprises, as a first step, crushing a lithium battery and then recovering precious metals such as lithium, cobalt, nickel and the like from the crushed powder.

However, when the lithium battery is extruded or broken by external force, the lithium battery is very easy to generate heat, and the explosion phenomenon can happen in severe cases. It is known that lithium metal in lithium batteries is very active chemically and is very prone to heat or burn in a humid environment. In fact, the heating or burning phenomenon of lithium batteries is mainly caused by both short circuit and excessive current. The factors causing the short circuit of the lithium battery are many, including the physical damage of the battery, the temperature of the use environment and the short circuit of the positive and negative electrodes. If the lithium battery shell is damaged, the internal short circuit of the battery core can be caused, and therefore heating and burning are achieved. However, when the charged lithium battery is recycled, dangerous accidents are easily caused by a direct crushing mode, so that the charged lithium battery needs to be subjected to short-circuit discharge treatment, high temperature is generated in the short-circuit discharge process, danger is easily caused, and the efficiency is low because the short-circuit operation is usually performed manually.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a processing apparatus before lithium cell.

A lithium battery pretreatment device is used for lithium battery recovery and comprises a precooling device and a violent short-circuit discharge device; the pre-cooling device comprises a conveying assembly and a refrigerant jet device, wherein the refrigerant jet device is arranged on the conveying assembly and is used for cooling the lithium battery arranged on the conveying assembly; the violent short-circuit discharge device comprises a mounting plate, a telescopic mechanism and a V-shaped transmission mechanism, wherein the telescopic mechanism is fixedly mounted on the mounting plate, the free telescopic end of the telescopic mechanism faces downwards, a violent crushing cutter is mounted at the free end of the telescopic mechanism, the V-shaped transmission mechanism comprises a first transmission device and a second transmission device, and the first transmission device and the second transmission device are arranged in a V shape; the broken cutter of violence set up in V-arrangement transmission device's top, just the axis of the broken cutter of violence passes V-arrangement transmission device bottom.

Preferably, the refrigerant jet device comprises a pressure collecting bin and a jet nozzle for jetting the refrigerant, wherein a pressure equalizing cavity for equalizing the pressure of the refrigerant is formed in the pressure collecting bin, and the pressure equalizing cavity is communicated with the jet nozzle; the jet flow nozzles are uniformly distributed on the lower surface of the pressure collecting bin.

Preferably, the jet nozzles are slit-shaped jet nozzles, and adjacent slit-shaped jet nozzles are parallel and distributed at equal intervals.

Preferably, the conveying assembly comprises a conveying steel belt, and a plurality of vent holes are formed in the conveying steel belt.

Preferably, telescopic machanism includes fixed sleeve and pars contractilis, pars contractilis one end portable be fixed in the fixed sleeve, the other end installation of pars contractilis the broken cutter of violence.

Preferably, the violent breaking tool is a rod-shaped metal with a tip at the end.

Preferably, the first conveyor includes a first conveyor belt and a first conveyor shaft for driving the first conveyor belt; the second transmission device comprises a second conveyor belt and a second transmission shaft, and the second transmission shaft is used for driving the second conveyor belt; and a V-shaped included angle is formed between the first conveyor belt and the second conveyor belt.

Preferably, the first conveyor belt and the second conveyor belt are moving in the same direction.

Preferably, the telescopic mechanism is fixedly arranged on the mounting plate and is positioned at the downstream of the first conveyor belt and the second conveyor belt.

The beneficial effects of the utility model are embodied in: the lithium battery to be recovered is subjected to low-temperature treatment through the precooling device, so that the lithium battery absorbing cold energy absorbs heat generated by chemical reaction in the short-circuit discharge process, the stability of the battery after the short-circuit discharge process is in a safe and controllable range, the explosion risk of the battery is reduced, and the short-circuit discharge process is safer. In addition, the lithium battery can be placed in a fixed direction through the V-shaped transmission mechanism, so that the short-circuit discharge treatment of the lithium battery by a violent crushing cutter is facilitated, the safety is improved, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic view of a first structure of a lithium battery pretreatment apparatus according to an embodiment of the present invention;

fig. 2 is a schematic view of a second structure of the lithium battery pretreatment apparatus according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a violent short-circuit discharge device according to an embodiment of the present invention.

In the figure, 10-refrigerant jet device, 101-pressure collecting bin, 102-jet nozzle, 20-conveying assembly, 201-driving shaft, 202-conveying steel belt, 203-vent hole, 30-mounting plate, 40-telescoping mechanism, 401-fixing sleeve, 402-telescoping part, 403-violent crushing cutter, 50-V-shaped conveying mechanism, 501-first conveying device, 502-second conveying device, 5011-first conveying belt, 5021-second conveying belt, 5012-first conveying shaft, 5022-second conveying shaft and 60-lithium battery.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

The embodiment of the utility model provides a lithium battery 60 pretreatment device, is used for lithium battery 60 to retrieve, as shown in fig. 1, including precooling apparatus and violent short circuit discharge device; the pre-cooling device comprises a conveying assembly 20 and a coolant jet device 10, wherein the coolant jet device 10 is arranged on the conveying assembly 20 and is used for cooling the lithium battery 60 arranged on the conveying assembly 20.

Further, the conveying assembly 20 includes a conveying steel belt 202, and a plurality of vent holes 203 are formed in the conveying steel belt 202.

Further, the refrigerant jet device 10 further includes a pressure collecting bin 101 and a jet nozzle 102 for jetting the refrigerant, a pressure equalizing chamber for equalizing the pressure of the refrigerant is formed in the pressure collecting bin, and the pressure equalizing chamber is communicated with the jet nozzle 102; the jet nozzles 102 are uniformly distributed on the lower surface of the pressure collecting bin. The lithium battery 60 placed on the conveyor steel belt 202 may be uniformly cooled. The coolant jet device 10 can be connected to a refrigeration system to obtain a low-temperature coolant; on the other hand, the liquid nitrogen can be directly input into the pressure collecting bin of the refrigerant jet device 10 and sprayed to the lithium battery 60 through the jet nozzle 102 to be cooled.

Further, the jet nozzles 102 are slit-shaped jet nozzles 102, and the adjacent slit-shaped jet nozzles 102 are parallel and distributed at equal intervals, so that a uniform cooling process can be realized.

The violent short-circuit discharge device comprises a mounting plate 30, a telescopic mechanism 40 and a V-shaped transmission mechanism 50, wherein the telescopic mechanism 40 is fixedly mounted on the mounting plate 30, the free telescopic end of the telescopic mechanism 40 faces downwards, a violent crushing cutter 403 is mounted at the free end of the telescopic mechanism 40, the V-shaped transmission mechanism 50 comprises a first transmission device 501 and a second transmission device 502, and the first transmission device 501 and the second transmission device 502 are arranged in a V shape; the force crushing cutter 403 is disposed above the V-shaped transfer mechanism 50, and the axis of the force crushing cutter 403 passes through the bottom of the V-shaped transfer mechanism 50.

Further, the telescopic mechanism 40 comprises a fixed sleeve 401 and a telescopic part 402, one end of the telescopic part 402 is movably fixed in the fixed sleeve 401, and the other end of the telescopic part 402 is provided with the violent breaking tool 403. Further, the violent crushing cutter 403 is a bar-shaped metal having a tip at its end.

Further, as shown in conjunction with FIGS. 2 and 3; the first conveyor 501 includes a first conveyor belt 5011 and a first conveyor shaft 5012, and the first conveyor shaft 5012 is configured to drive the first conveyor belt 5011; the second transferring device 502 includes a second belt 5021 and a second transferring shaft 5022, and the second transferring shaft 5022 is used for driving the second belt 5021; the first conveyor 5011 and the second conveyor 5021 form a V-shaped included angle. So that the cooled lithium batteries 60 fall onto the V-shaped transmission mechanism 50, and the placement directions of the lithium batteries 60 are consistent.

Further, the first conveyor 5011 and the second conveyor 5021 move in the same direction.

Further, the telescopic mechanism 40 is fixedly disposed on the mounting plate 30 and located at the downstream of the first conveyor 5011 and the second conveyor 5021.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a lithium cell pretreatment device for lithium cell is retrieved, its characterized in that: the device comprises a precooling device and a violent short-circuit discharge device; the pre-cooling device comprises a conveying assembly and a refrigerant jet device, wherein the refrigerant jet device is arranged on the conveying assembly and is used for cooling the lithium battery arranged on the conveying assembly; the violent short-circuit discharge device comprises a mounting plate, a telescopic mechanism and a V-shaped transmission mechanism, wherein the telescopic mechanism is fixedly mounted on the mounting plate, the free telescopic end of the telescopic mechanism faces downwards, a violent crushing cutter is mounted at the free end of the telescopic mechanism, the V-shaped transmission mechanism comprises a first transmission device and a second transmission device, and the first transmission device and the second transmission device are arranged in a V shape; the broken cutter of violence set up in V-arrangement transmission device's top, just the axis of the broken cutter of violence passes V-arrangement transmission device bottom.

2. The pretreatment device for a lithium battery according to claim 1, wherein: the refrigerant jet device comprises a pressure collecting bin and a jet nozzle for jetting a refrigerant, wherein a pressure equalizing cavity for equalizing the pressure of the refrigerant is formed in the pressure collecting bin, and the pressure equalizing cavity is communicated with the jet nozzle; the jet flow nozzles are uniformly distributed on the lower surface of the pressure collecting bin.

3. The pretreatment device for a lithium battery according to claim 2, wherein: the jet nozzles are slit-shaped jet nozzles, and the adjacent slit-shaped jet nozzles are parallel and distributed at equal intervals.

4. The pretreatment device for a lithium battery according to claim 1, wherein: the conveying assembly comprises a conveying steel belt, and a plurality of vent holes are formed in the conveying steel belt.

5. The pretreatment device for a lithium battery according to claim 1, wherein: telescopic machanism includes fixed sleeve and pars contractilis, pars contractilis one end portable is fixed in the fixed sleeve, the other end installation of pars contractilis the broken cutter of violence.

6. The pretreatment device for a lithium battery according to claim 1, wherein: the violent crushing cutter is rod-shaped metal with a tip at the tail end.

7. The pretreatment device for a lithium battery according to claim 1, wherein: the first conveying device comprises a first conveyor belt and a first conveying shaft, and the first conveying shaft is used for driving the first conveyor belt; the second transmission device comprises a second conveyor belt and a second transmission shaft, and the second transmission shaft is used for driving the second conveyor belt; and a V-shaped included angle is formed between the first conveyor belt and the second conveyor belt.

8. The pretreatment device for a lithium battery as claimed in claim 7, wherein: the first conveyor belt and the second conveyor belt move in the same direction.

9. The pretreatment device for a lithium battery as claimed in claim 7, wherein: the telescopic mechanism is fixedly arranged on the mounting plate and is positioned at the downstream of the first conveyor belt and the second conveyor belt.