CN210607469U

CN210607469U - Lithium battery negative electrode material component extraction production line

Info

Publication number: CN210607469U
Application number: CN201921471330.3U
Authority: CN
Inventors: 褚兵
Original assignee: ANHUI XUNYING NEW ENERGY TECHNOLOGY CO LTD
Current assignee: ANHUI XUNYING NEW ENERGY TECHNOLOGY CO LTD
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-05-22
Anticipated expiration: 2029-09-05

Abstract

A production line for extracting components of a negative electrode material of a lithium battery can solve the technical problems of low recovery efficiency and pollution of the negative electrode material of the lithium battery in the prior art. The material screening machine comprises a material conveying belt and a motor, wherein the material conveying belt is connected with the motor, two crushing machines are arranged, and four screening machines are arranged; after the materials are crushed for the first time, the materials are separated from gas through a specific gravity rotary fall in the cyclone by inertia by arranging the cyclone, the gas is discharged through a negative pressure exhaust duct at the top of the cyclone, and the material dust flows out of a discharge hole at the bottom of the cyclone to a screening machine; the materials are crushed twice and sieved for four times, pure graphite powder is finally received and collected in the graphite collecting chamber, and pure copper particles are collected in the copper collecting chamber. The utility model discloses draw the principal ingredients to lithium cell negative pole material and be: copper and graphite are generated automatically from the pole piece raw material to the screening of each stage after the pole piece raw material is crushed. The material is conveyed through the conveying belt and the screw type conveyor, so that the whole sorting and extracting process is hermeticity, leak-proof and dustproof.

Description

Lithium battery negative electrode material component extraction production line

Technical Field

The utility model relates to a lithium cell retrieves technical field, concretely relates to lithium cell negative pole material composition draws production line.

Background

For the recovery of lithium batteries, some anode material refining methods generally available in the market manually feed each work department machine, and manually receive each work department. The sorting of the component materials is not fine, the efficiency is low, black dust falls on the ground, and certain pollution is brought to the surrounding environment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lithium cell cathode material composition draws production line can solve the current technical problem that has the pollution to the low and existence of the recovery efficiency of the cathode material of lithium cell.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lithium battery negative electrode material component extraction production line comprises a material conveying belt, a pulverizer, a screening machine and a material collecting chamber, wherein the material conveying belt is connected with a motor, the motor drives the material conveying belt to convey, the pulverizer comprises an A pulverizer and a B pulverizer, and the screening machine comprises an A screening machine, a B screening machine, a C screening machine and a D screening machine;

the material conveying belt conveys the material to the A pulverizer, the A pulverizer is communicated with the A cyclone, material dust in the A pulverizer is separated from gas through the specific gravity rotary fall in the A cyclone through inertia, the gas is discharged through a negative pressure exhaust duct at the top of the A cyclone, and the material dust flows out of a discharge port at the bottom of the A cyclone to the A sieve machine;

the screened graphite powder in the A screening machine is conveyed to a graphite collecting chamber through a discharge hole A2 of the A screening machine; the powder which cannot pass through the screen A flows into the screen B along with the discharge port A1 of the screen A, and the graphite powder which is screened out in the screen B is conveyed to the graphite collecting chamber from the discharge port B2 of the screen B; the powder which can not be sieved by the sieve B flows into the crusher B from a discharge port B1 of the sieve B to be crushed again;

feeding the powder crushed by the crusher B into a cyclone B through a turbine, then circularly sliding the cyclone B into a sieve C to sieve the graphite powder in a vibrating manner, and conveying the graphite powder sieved by the sieve C to a graphite collecting chamber from a discharge port C2 of the sieve C; the powder which cannot pass through the screening flows out from a discharge port C1 of the screen C machine and enters the screen D machine for the last screening;

the graphite sieved by the D sieving machine flows out from a discharge port D2 of the D sieving machine and is conveyed to a graphite collecting chamber; the powder which can not be screened by the D screen machine is pure copper particles because of being screened by the four screen machines to obtain the graphite powder, and then the copper particles flow into the copper collecting chamber from a D1 discharge hole of the D screen machine to be collected.

Further, an infrared inductor is arranged on the material conveying belt and is in communication connection with a control module, and the control module is in communication connection with a motor.

Further, the materials at the A2 discharge port, the B2 discharge port, the C2 discharge port and the D2 discharge port are respectively provided with a screw type feeder and are conveyed to the graphite collecting chamber.

Furthermore, a closed dustproof door is arranged in the graphite collecting chamber, so that dust cannot leak in the process of collecting powder.

Furthermore, the cyclone air-conditioning system also comprises an exhaust fan, wherein the exhaust fan is respectively communicated with the negative pressure exhaust duct of the cyclone A and the negative pressure exhaust duct of the cyclone B, and an exhaust port is arranged on the exhaust fan and used for exhausting gas.

And the negative pressure exhaust duct of the cyclone A and the negative pressure exhaust duct of the cyclone B are communicated with the exhaust fan through the dust remover respectively.

According to the above technical scheme, the utility model discloses a lithium cell negative electrode material composition draws production line

The extraction of the lithium battery negative electrode material comprises the following main components: copper and graphite are generated in a full-automatic way from pole piece raw materials to crushing to screening in each stage in a production line. The material is carried completely through the conveyer belt of customization and screw pipeline, lets whole separation extraction process all be the leakproofness, and the leak protection is dustproof.

Simultaneously the utility model discloses a four reciprocating sieve machines, four sieving machines all adopt sealed leak protection dirt technology, and the screen cloth mesh number in the sieving machine has certain pertinence to the granularity transition nature of graphite powder, and every way discharge gate is all connecting the screw feeder and is unified carry graphite powder to graphite and collect indoorly, and the powder is collected to the high efficiency, has effectively avoided the dust to leak outward. The utility model discloses still set up pulse dust collector, pulse dust collector has adopted under automatically controlled timing glassware, when collecting certain powder in the dust collection box, timing glassware start intervention work rotation dividing wheel makes in the automatic collection bag that flows into the stone black collecting chamber of powder down. The graphite collecting chamber is internally provided with a closed dustproof door and a high-flow exhaust system, so that dust in the process of collecting powder cannot leak. To sum up the utility model discloses compare other equipment on the market and more high-efficient safety and environmental protection.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an electrical control schematic diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

As shown in fig. 1, the lithium battery negative electrode material component extraction production line according to the embodiment includes: the material conveying device comprises a material conveying belt 1, a crusher, a screening machine and a material collecting chamber, wherein the material conveying belt 1 is connected with a motor, the motor drives the material conveying belt 1 to convey, an infrared sensor is arranged on the material conveying belt 1 and is in communication connection with a control module, and the control module is in communication connection with the motor;

the crusher comprises a crusher A21 and a crusher B22, and the screening machines comprise a screening machine A31, a screening machine B32, a screening machine C33 and a screening machine D34;

the material conveyer belt 1 conveys the material to the A pulverizer 21, the A pulverizer 21 is communicated with the A cyclone 41, the material dust in the A pulverizer 21 is separated from the gas through the inertia in the A cyclone 41 by the specific gravity rotary fall, the gas is discharged through the negative pressure exhaust duct at the top of the A cyclone 41, and the material dust flows out of the discharge hole at the bottom of the A cyclone 41 to the A sieve machine 31;

the screened graphite powder in the A screen machine 31 is conveyed to the graphite collecting chamber 51 through the A2 discharge port 312 of the A screen machine 31 through a screw feeder 511; the powder which is not sieved by the A sieving machine 31 flows into the B sieving machine 32 along with the A1 discharge port 311 of the A sieving machine 31, and the graphite powder sieved in the B sieving machine 32 is conveyed to the graphite collecting chamber 51 from the B2 discharge port 322 of the B sieving machine 32 through the screw type feeder 511; the powder material which can not be sieved by the B sieve machine 32 flows into the B crusher 22 from a discharge port B1 of the B sieve machine 32 to be crushed again;

the powder crushed by the B crusher 22 is sent into the B cyclone 42 through turbine air, and then circularly and glidingly flows into the C sieve machine 33 from the B cyclone 42 to sieve graphite powder in a vibrating way, and the graphite powder sieved by the C sieve machine 33 flows out from a C2 discharge port 332 of the C sieve machine 33 and is conveyed to the graphite collecting chamber 51 through a screw feeder 511; the powder which cannot pass through the screening flows out from a discharge port C1 of the C screening machine 33 and enters the D screening machine 34 for screening;

the graphite sieved by the D-sieving machine 34 flows out of a discharge port 342 of a D2 of the D-sieving machine 34 and is conveyed to the graphite collecting chamber 51 through a screw type feeder 511; the powder which can not be screened by the D-screen 34 is pure copper particles because of the screening of the graphite powder by the four-screen, and then the copper particles flow into the copper collecting chamber 52 from the discharge port D1 of the D-screen 34 to be collected.

The screen 5MM of the grinder A is initially ground, the granularity is about 2-3MM, 70% of powder is taken out through the screen of the grinder A and the screen B, the rest part of the powder is rolled in the middle of coarse grains and is difficult to be screened out again, the screen 3MM of the grinder A is ground through the screen B, the granularity is 1-2, and the ground powder can be screened out through the screen C.D.

And a closed dustproof door is arranged in the graphite collecting chamber 51, so that dust cannot leak in the process of collecting powder.

The cyclone vacuum cleaner further comprises an exhaust fan 6 and a dust remover 7, wherein the negative pressure exhaust guide pipe 43 of the cyclone A41 and the negative pressure exhaust guide pipe 43 of the cyclone B42 are communicated with the exhaust fan 6 through the dust remover 7 respectively, and an exhaust port 61 is arranged on the exhaust fan 6 and used for exhausting gas.

The dust remover 7 adopts a pulse dust remover. The dust remover is used for absorbing air in the machine by a fan and filtering dust by the dust remover; through the fan induced air, dust and gas pass through the exhaust duct suction at cyclone top, send to the dust remover inside to separate to worry on the worry of dust remover separates, and the pulse relief valve air current of timing work is from last to down strikeed to worry to separate, makes the dust take off to the dust collection box of bottom in, and gas passes through to worry to separate to discharge through the fan induced exhaust steam outlet from the discharge of dust collector top.

The following working principle of the embodiment of the present invention is specifically explained:

the lithium battery cathode material is placed in the coarse material conveying belt 1, an infrared sensor on the conveying belt senses the existence of the material and sends the material to a signal central control computer, the central control computer receives a signal and sends the signal to a motor relay of the instructed conveying belt, the relay is connected with a motor power supply, and the motor enters a working big and thick state. The negative electrode material enters the A crusher 21 along with the conveying of the conveyer belt 1, crushed powder is conveyed into the A cyclone 41 through the nearby turbine air, the powder whirls in the A cyclone 21 and slides into the A sieve 31 to sieve graphite powder in a vibrating manner, and part of the graphite powder sieved out through the vibrating of the 100-mesh sieve flows into the screw type feeder 511 through the A2 discharge port 312 and is conveyed to the graphite collection chamber 51. The powder which cannot pass through screening flows into the B screen 32 along with the discharge port 311 of A1, the powder rotates in the B screen 32 to screen graphite powder in a vibrating way, the graphite powder separated by the 100-mesh screen flows into the screw type feeder 511 from the discharge port 322 of B2 and is conveyed to the graphite collection chamber 51. The powder material incapable of passing through the screen is discharged from a discharge port 321 of B1 to a B crusher 22 and crushed again. The granularity of the crushed powder is smaller, so that the graphite is further separated from the copper particles. Then, the graphite powder is sent into the B cyclone 42 by turbine wind, circularly slides into the C sieve 33 to sieve the graphite powder in a vibrating way, and the graphite powder separated by the 120-mesh sieve flows out from the discharge port 332 of C2, flows into the screw conveyor 511 and is conveyed to the graphite collecting chamber 51. The powder which cannot pass through the screening flows out from a discharge hole 331 of C1 to enter a D-screening machine 34 for final screening, and a small amount of graphite which is separated out through a screen mesh of 120 meshes flows out from a discharge hole 342 of D2, flows into a screw feeder 511 and is conveyed to a graphite collecting chamber 51. The powder which can not pass through the screening is pure copper particles obtained by screening the graphite powder by four screening machines, and then the copper particles flow into the copper collecting chamber 52 from the discharge port 341 of D1 to be collected.

As shown in fig. 2, it is an electrical control schematic diagram of an embodiment of the present invention, where TS represents a total switch; SZ/TV represents a data stream display; BMS ROM is a microcomputer control box; a represents a conveyor motor/contactor; b represents A a pulverizer motor/contactor; c represents a motor/contactor of the A screening machine; d represents a motor/contactor of the B screen machine; e represents B a pulverizer motor/contactor; f represents a motor/contactor of the C screen machine; g represents a D screen motor/contactor; h represents a screw feeding motor/contactor; k represents a pulse dust collector motor/contactor; l represents a fan motor/contactor; TM represents a timing controller; TUN denotes a fan frequency modulator; AK is an A motor valve, BK is a B motor valve, and SH is a signal converter; s1 is a negative pressure sensor A, S2 is a negative pressure sensor B;

the electricity consuming units on figure 2 are as follows:

1 represents that the conveying belt motor is 2.2 KW; 21 is A, the motor of the grinder is 30 KW; 31 is a sieve machine motor A, specifically 2.2 KW; 32 is a B sieve machine motor, specifically 1.1 KW; 22 is B, the specific motor of the grinder is 7.5 KW; the motor of the C sieve is particularly 2.2KW 33; 34 is a D screen machine motor 1.1 KW; the motor of the 511-bit screw feeder is 7.5 KW; 7 is a pulse dust collector blanking device motor 2.2 KW; 6 represents a fan motor, in particular 7.5 KW.

As can be seen from the figure 2, the total power consumption of the whole production line is about 70KW, the contactor microcomputer controller provided with the safety switch of the total circuit is shunted to each power consumption unit to control the current supply of the relay driving contactor, when the power consumption unit is overloaded, signals are immediately reflected to the microcomputer controller, and the controller immediately performs power-off control on current to protect the power consumption unit components. The No. 6 power utilization unit is provided with a frequency modulator, and the rotating speed of the motor is modulated according to the actual negative pressure requirement according to the signal transmitted by the negative pressure sensor to achieve the energy-saving effect. No. 7 power utilization unit is provided with a TM timer controller to control the work of the blanking device in a timing mode, and the dust in the dust remover is kept not to be overloaded. S1 and S2 provide negative pressure signals to the microcomputer controller, and the controller automatically matches the opening degree of the AK and BK two motor valve stepping motors to the valve according to the set basic number of the system to control the numerical value of the negative pressure. The SZ/TV is a data flow display of the whole production line, data numbers are obtained by absorbing signals through an inductor and transmitting the signals to a microcomputer controller through a signal converter, and the data are conveyed to the SZ/TV display after comprehensive arrangement to express data such as negative pressure values, dust flow in pipelines, powder flow of each screening machine, temperature in the pipelines, comprehensive current values on the production line and the like.

The beneficial effects of this embodiment are as follows:

every worker portion of this production line all sets for corresponding data value and sets for, carries the material function also to be inductor formula from the material loading and intervenes work, can accomplish energy-conserving effect, and the A rubbing crusher that comes next chooses silent type design for use, and dustproof sound insulation material all matches in the rubbing crusher periphery is the noise effective control. Then to A cyclone, the negative pressure regulation of cyclone has adopted electric step motor control valve, and the work of associating with the negative pressure inductor signal data at cyclone top is accomplished the automatically controlled more accurate negative pressure of adjusting. Efficiently separating the gas from the powder. And then, four vibration screening machines of the ABCD adopt a sealed dust leakage prevention process. The mesh number of the screen in the screening machine has certain pertinence to the excessive granularity of the graphite powder. Every discharge gate is all being connected screw feeder and is unified to carry graphite powder in the graphite collecting chamber, and the powder is collected to the high efficiency, has effectively avoided the dust to leak outward. And then, a pulse dust collector adopts an electric control timing feeder, and when certain powder is collected in the dust collection box, the timing feeder starts to intervene to work and rotate the dividing wheel to enable the powder to automatically flow into a collection bag in the stone black collection chamber. The graphite collecting chamber is internally provided with a closed dustproof door and a high-flow exhaust system, so that dust in the process of collecting powder cannot leak. The equipment is more efficient, safer and more environmentally friendly than other equipment on the market.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; 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 technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a lithium cell negative pole material composition draws production line, includes material conveyer belt (1), the pure machine of powder, screen (ing) machine and collecting chamber, and material conveyer belt (1) is connected with the motor, and the motor drives material conveyer belt (1) conveying, its characterized in that: the crushing machine comprises a crushing machine A (21) and a crushing machine B (22), and the screening machine comprises a screening machine A (31), a screening machine B (32), a screening machine C (33) and a screening machine D (34);

the material conveyer belt (1) conveys materials to the A pulverizer (21), the A pulverizer (21) is communicated with the A cyclone (41), material dust in the A pulverizer (21) is separated from gas through the specific gravity rotary fall in the A cyclone (41) through inertia, the gas is discharged through a negative pressure exhaust duct at the top of the A cyclone (41), and the material dust flows out of a discharge port at the bottom of the A cyclone (41) to the A sieve machine (31);

the screened graphite powder in the A screen (31) is conveyed to a graphite collecting chamber (51) through an A2 discharge hole (312) of the A screen (31); the powder which cannot pass through the A screen (31) flows into the B screen (32) along with the A1 discharge port (311) of the A screen (31), and the graphite powder which is screened in the B screen (32) is conveyed to the graphite collecting chamber (51) from the B2 discharge port (322) of the B screen (32); the powder which can not be screened by the B screen (32) flows into the B crusher (22) from a B1 discharge port (321) of the B screen (32) to be crushed again;

the powder crushed by the crusher (22) B enters a cyclone (42) B through turbine wind, and then circularly slides from the cyclone (42) B into a sieve C (33) to sieve graphite powder in a vibrating manner, and the graphite powder sieved by the sieve C (33) flows out from a discharge port C2 (332) of the sieve C (33) and is conveyed to a graphite collecting chamber (51); the powder which cannot pass through the screening flows out from a discharge port C1 of the screen C (33) and enters a screen D (34) for screening;

the graphite sieved by the D sieving machine (34) flows out from a discharge port (342) of D2 of the D sieving machine (34) and is conveyed to a graphite collecting chamber (51); the powder which can not be screened by the D screen (34) is pure copper particles because of being screened by the four screens to obtain graphite powder, and then the copper particles flow into the copper collecting chamber (52) from a D1 discharge hole of the D screen (34) to be collected.

2. The lithium battery negative electrode material component extraction production line as recited in claim 1, characterized in that: the material conveying belt (1) is provided with an infrared inductor, the infrared inductor is in communication connection with a control module, and the control module is in communication connection with a motor.

3. The lithium battery negative electrode material component extraction production line as recited in claim 1, characterized in that: the materials at the A2 discharge port (312), the B2 discharge port (322), the C2 discharge port (332) and the D2 discharge port (342) are respectively arranged on a screw type feeder (511) and conveyed to the graphite collecting chamber (51).

4. The lithium battery negative electrode material component extraction production line as recited in claim 1, characterized in that: and 100-mesh screens are respectively arranged in the A screen (31) and the B screen (32).

5. The lithium battery negative electrode material component extraction production line as recited in claim 1, characterized in that: and a 120-mesh screen is respectively arranged in the screen C (33) and the screen D (34).

6. The lithium battery negative electrode material component extraction production line as recited in claim 1, characterized in that: and a closed dustproof door is arranged in the graphite collecting chamber (51), so that dust cannot leak in the process of collecting powder.

7. The lithium battery negative electrode material component extraction production line as recited in claim 1, characterized in that: still include exhaust fan (6), exhaust fan (6) communicate respectively with negative pressure exhaust pipe (43) of A cyclone (41) and negative pressure exhaust pipe (43) of B cyclone (42), set up gas vent (61) on exhaust fan (6) and be used for gas outgoing.

8. The lithium battery negative electrode material component extraction production line as recited in claim 7, characterized in that: the cyclone air purifier further comprises a dust remover (7), and the negative pressure exhaust guide pipe (43) of the cyclone A (41) and the negative pressure exhaust guide pipe (43) of the cyclone B (42) are communicated with the exhaust fan (6) through the dust remover (7) respectively.

9. The lithium battery negative electrode material component extraction production line as recited in claim 8, characterized in that: the dust remover (7) adopts a pulse dust remover.