CN212493233U

CN212493233U - Novel lithium electricity thick liquids processing grinding device

Info

Publication number: CN212493233U
Application number: CN202021096253.0U
Authority: CN
Inventors: 胡常青; 张永洪; 任宏君; 韩兵; 袁启朗
Original assignee: Shandong Hange Power Energy Technology Co ltd
Current assignee: Shandong Hange Power Energy Technology Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-02-09
Anticipated expiration: 2030-06-12

Abstract

The utility model relates to the technical field of lithium ion battery manufacturing, and discloses a novel lithium battery slurry processing and grinding device, which comprises a shell, wherein the interior of the shell is provided with a stirring device and a vertical ball mill, the stirring device comprises a stirring shell, a fixed rod and a feeding port, the left side of the stirring shell is fixedly connected with the fixed rod, the left end of the fixed rod is fixedly connected on the left inner wall of the shell, the upper surface of the stirring shell is fixedly connected with the feeding port, the feeding port is communicated with the interior of the stirring shell, a chassis is arranged below the stirring shell, the chassis is fixedly connected with the lower end of the stirring shell, the right side of the upper surface of the chassis is provided with a discharging port, a motor is arranged below the chassis, the upper end of the motor is fixedly connected on the chassis, an output shaft of the motor is fixedly connected with a rotating rod, a set of slurry stirring process with high matching degree is formulated and put into use, and the processing performance of the slurry is improved.

Description

Novel lithium electricity thick liquids processing grinding device

Technical Field

The utility model relates to a lithium ion battery preparation technical field specifically is a novel lithium electricity thick liquids processing grinding device.

Background

The key technical core of lithium ion battery production is that the selection of the batching process, materials, formula and stirring process will determine the performance of the battery product to a great extent. A double-planetary power mixer is generally selected as a stirring device of a lithium power plant, and the stirring device has high-speed stirring and dispersing functions. However, the process period of the conventional ingredient stirring is long, and the total stirring and mixing time of the sol, the added conductive agent and the main material exceeds 10 hours. The tank bottom can remain the dead angle that does not stir, and the tank deck can stir the drier that rises to the stirring rake, and the dispersion effect is not good. The coating effect is affected by the trouble of poor processability, the dispersion effect is poor, and the internal resistance of the battery is high due to uneven coating.

The oil slurry has a large internal stress and is likely to be too thick. Stirring tank manufacturers on the market are uneven, and the designed dispersion linear speed of the dispersion disc often cannot meet the use requirement. Therefore, under the same design conditions, the solid content of the slurry is unstable due to the pseudo-consistency and pseudo-plasticity of the slurry.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a novel lithium electricity thick liquids processing grinding device possesses advantages such as raise the efficiency and dispersion are even, has solved because the false consistence and the pseudoplasticity of thick liquids for the unstable problem of thick liquids solid content.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a novel lithium battery slurry processing and grinding device comprises a shell, wherein a stirring device and a vertical ball mill are arranged inside the shell, the stirring device comprises a stirring shell, a fixed rod and a feeding port, the left side of the stirring shell is fixedly connected with the fixed rod, the left end of the fixed rod is fixedly connected to the left inner wall of the shell, the upper surface of the stirring shell is fixedly connected with a feeding port, the feeding port is communicated with the interior of the stirring shell, a chassis is arranged below the stirring shell, the base plate is fixedly connected with the lower end of the stirring shell, the right side of the upper surface of the base plate is provided with a discharge hole, a motor is arranged below the chassis, the upper end of the motor is fixedly connected on the chassis, an output shaft of the motor is fixedly connected with a rotating rod, the rotating rod is arranged above the chassis, and stirring blades are uniformly arranged on the outer side of the rotating rod at equal intervals.

The quantity of stirring leaf is three, the bottom the stirring leaf pastes with the upper surface on chassis mutually, the stirring leaf includes blade, round hole and spout, the round hole has been seted up to the upper surface front end of blade, the round hole cup joints in the outside of bull stick, round hole and bull stick adaptation, the round hole is in the same place with bull stick fixed connection, the spout has been seted up to the right flank of blade, fixedly connected with spring on the preceding inner wall of spout, the front end fixedly connected with scraper blade of spring, the inside of spout is inserted to the left end of scraper blade, scraper blade and spout adaptation, the upper and lower both ends of scraper blade are all laminated on the surface of blade.

Agitating unit's lower extreme is provided with vertical ball mill, vertical ball mill is including entry, inlet tube and support one, the upper end fixed connection of entry is on the chassis, the entry is just right with the discharge gate, the entry communicates with each other with the discharge gate, the right-hand member fixedly connected with inlet tube of entry, the lower extreme fixedly connected with support one of inlet tube, the lower extreme fixed connection of support one is on the lower inner wall of shell, the right-hand member outside fixedly connected with bearing one of inlet tube, the outer lane fixedly connected with barrel of bearing one, the barrel communicates with each other with the inside of bearing one.

The pneumatic diaphragm pump I of inside wall fixedly connected with of barrel and pneumatic diaphragm pump two, pneumatic diaphragm pump two is in pneumatic diaphragm pump one right-hand, agitator ball one, agitator ball two and agitator ball three have been placed to the inside of barrel, agitator ball one is in the left of pneumatic diaphragm pump one, agitator ball two is in pneumatic diaphragm pump one right-hand, agitator ball two is in pneumatic diaphragm pump two left, agitator ball three is in pneumatic diaphragm pump two right-hand.

Preferably, the left end outside fixedly connected with gear of barrel is first, the right-hand export that is provided with of barrel, the left end outside fixedly connected with bearing two of export, bearing two inserts the inside of barrel, the outer lane and the barrel fixed connection of bearing two, the export communicates with each other with the barrel is inside, the downside fixedly connected with support two of export, the lower extreme fixed connection of support two is on the lower inner wall of shell, fixed mounting has the export net on the right port inner wall of export, the mesh density of export net is the same with the mesh density of pneumatic diaphragm pump two.

Preferably, a drive is arranged in front of the vertical ball mill, the lower end of the drive is fixedly connected to the lower inner wall of the shell, a second gear is fixedly connected to the output shaft of the drive, and the second gear is meshed with the first gear.

(III) advantageous effects

Compared with the prior art, the utility model provides a novel lithium electricity thick liquids processing grinding device possesses following beneficial effect:

1. this novel lithium electricity thick liquids processing grinding device, setting through the stirring leaf, the in-process of stiring again, because the effect of centrifugal force, can throw away the scraper blade towards the direction of keeping away from the bull stick, because the existence of spout, the scraper blade can remove along the spout, the scraper blade is when the stirring leaf is rotatory, can last the area in the rear end of blade, after the rotation of bull stick stops, because the characteristic of spring, can pull back the scraper blade to the normal position along the spout, the in-process of pulling back can get rid of the drier on the blade, the waste of raw materials has been avoided, the cost of raw materials has been practiced thrift, and the cost is saved: the solid content of the slurry is improved by 5 percent, and the using amount of NMP (N-methyl pyrrolidone) which is an oily solvent is reduced by about 20 percent.

2. This novel lithium electricity thick liquids processing grinding device through the design at the discharge gate to and the upper surface on stirring leaf and the chassis of bottommost is the position relation of pasting mutually, makes the dead angle department that chassis and stirring shell are connected also can be stirred by the stirring leaf of bottommost, has avoided the remaining raw materials in dead angle, improves the utilization ratio of raw materials.

3. This novel lithium electricity thick liquids processing grinding device can go into the barrel through discharge gate, entry and inlet tube and grind after the raw materials stirs in advance in agitating unit, through increasing vertical ball mill, and traditional wet process technology is with the required each item material of prescription progressively adding to be equipped with churning time and rotational speed. Our novel processing mode combines traditional wet process technology, and collocation grinding equipment formulates one set and matches the very high thick liquids stirring process of degree and puts into use, and the thick liquids after being about to mix in advance shifts to vertical ball mill, improves dispersion effect through the grinding of stirring ball one, stirring ball two and stirring ball three, improves the processing property of thick liquids, shortens stirring cycle to reach and reduce the purpose that internal resistance promoted battery performance, the dispersion is even: the fineness of the slurry is more than or equal to 10 mu, and the processing performance is as follows: outstanding, easily coating, promoting battery performance: the battery has good consistency and the internal resistance is reduced by about 17 percent.

4. This novel lithium electricity thick liquids processing grinding device, through the pneumatic diaphragm pump one that sets up, pneumatic diaphragm pump two, agitator ball one, agitator ball two and agitator ball three, carry out hierarchical grinding to the thick liquids that get into in the vertical ball mill, promoted the quality of processing back thick liquids greatly, for the stability and the uniformity that promote thick liquids, we have increased abrasive machining and have handled, thick liquids mobility reinforcing, internal stress reduces, and is fast moreover, and the thick liquids granule obviously thins, and the effect is obvious, raises the efficiency: the stirring time is 1/2 of the original process.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the stirring device of the present invention;

FIG. 3 is a schematic structural view of the vertical ball mill of the present invention;

FIG. 4 is a schematic view of the structure of the stirring blade of the present invention;

FIG. 5 is a schematic view of the internal structure of the barrel of the present invention;

FIG. 6 is a flow chart of the ball milling process of the present invention.

In the figure: the device comprises a shell 1, a stirring device 2, a 201 stirring shell, a 202 fixing rod, a 203 feeding port, a 204 chassis, a 205 discharging port, a 206 motor, a 207 rotating rod, a 3 vertical ball mill, a 301 inlet pipe, a 302 inlet pipe, a 303 support I, a 304 bearing I, a 305 cylinder body, a 306 pneumatic diaphragm pump I, a 307 pneumatic diaphragm pump II, a 308 stirring ball I, a 309 stirring ball II, a 310 stirring ball III, a 311 gear I, a 312 outlet, a 313 bearing II, a 314 support II, a 315 outlet net, a 4 stirring blade, a 401 blade, a 402 round hole, a 403 chute, a 404 spring, a 405 scraper blade, a 5 drive and a 6 gear II.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, a novel lithium battery slurry processing and grinding device includes a housing 1, a stirring device 2 and an attritor 3 are disposed inside the housing 1, the stirring device 2 includes a stirring housing 201, dead lever 202 and pan feeding mouth 203, the left side fixedly connected with dead lever 202 of stirring shell 201, the left end fixed connection of dead lever 202 is on the left inner wall of shell 1, the last fixed surface of stirring shell 201 is connected with pan feeding mouth 203, pan feeding mouth 203 communicates with each other with the inside of stirring shell 201, the below of stirring shell 201 is provided with chassis 204, chassis 204 fixed connection is at the lower extreme of stirring shell 201, discharge gate 205 has been seted up on the upper surface right side of chassis 204, the below of chassis 204 is provided with motor 206, the upper end fixed connection of motor 206 is on chassis 204, the output shaft fixed connection bull stick 207 of motor 206, bull stick 207 is in the top of chassis 204, the outside equidistance of bull stick 207 is even is provided with stirring leaf 4.

The quantity of stirring leaf 4 is three, the stirring leaf 4 of bottom pastes with the upper surface on chassis 204 mutually, stirring leaf 4 includes blade 401, round hole 402 and spout 403, round hole 402 has been seted up to the upper surface front end of blade 401, round hole 402 cup joints the outside at bull stick 207, round hole 402 and bull stick 207 adaptation, round hole 402 is in the same place with bull stick 207 fixed connection, spout 403 has been seted up to the right flank of blade 401, fixedly connected with spring 404 on the preceding inner wall of spout 403, the front end fixedly connected with scraper blade 405 of spring 404, the inside of spout 403 is inserted to the left end of scraper blade 405, scraper blade 405 and spout 403 adaptation, the upper and lower both ends of scraper blade 405 all laminate on the surface of blade 401, the upper and lower both ends of scraper blade 405 are like the front end shape of blade 401.

The lower extreme of agitating unit 2 is provided with attritor 3, the attritor drives the steel ball and is the vortex form and turns over in the section of thick bamboo, utilize the extrusion force that the zirconium ball removed the production to grind the thick liquids, thereby reach the grinding effect, the grinding mode is vertical planet stirring, attritor 3 is including entry 301, inlet tube 302 and a support 303, the upper end fixed connection of entry 301 is on chassis 204, entry 301 is just right with discharge gate 205, entry 301 communicates with each other with discharge gate 205, the right-hand member fixedly connected with inlet tube 302 of entry 301, the lower extreme fixedly connected with support 303 of inlet tube 302, the lower extreme fixed connection of support 303 is on the lower inner wall of shell 1, the right-hand member outside fixedly connected with bearing 304 of inlet tube 302, the outer lane fixedly connected with barrel 305 of bearing 304, barrel 305 communicates with each other with the.

The inner side wall of the cylinder body 305 is fixedly connected with a first pneumatic diaphragm pump 306 and a second pneumatic diaphragm pump 307, the second pneumatic diaphragm pump 307 is positioned on the right of the first pneumatic diaphragm pump 306, the mesh density of the second pneumatic diaphragm pump 307 is greater than that of the first pneumatic diaphragm pump 306, a first stirring ball 308, a second stirring ball 309 and a third stirring ball 310 are arranged in the cylinder body 305, the processed slurry is considered to be special NMP oil slurry and has corrosiveness, so that zirconia balls become the best choice, are corrosion-resistant, wear-resistant and heat-insulating and have good roundness, the selection of the zirconia balls is matched in size, the first stirring ball 308 is positioned on the left of the first pneumatic diaphragm pump 306, the second stirring ball 309 is positioned on the right of the first pneumatic diaphragm pump 306, the second stirring ball 309 is positioned on the diaphragm pump of the second pneumatic diaphragm pump 307, the third stirring ball 310 is positioned on the right of the second pneumatic diaphragm pump 307, and the specification, the second agitating ball 309 is larger in size than the third agitating ball 310.

The outer side of the left end of the cylinder body 305 is fixedly connected with a first gear 311, the right side of the cylinder body 305 is provided with an outlet 312, the outer side of the left end of the outlet 312 is fixedly connected with a second bearing 313, the second bearing 313 is inserted into the cylinder body 305, the outer ring of the second bearing 313 is fixedly connected with the cylinder body 305, the outlet 312 is communicated with the inside of the cylinder body 305, the lower side of the outlet 312 is fixedly connected with a second support 314, the lower end of the second support 314 is fixedly connected to the lower inner wall of the shell 1, the inner wall of the right port of the outlet 312 is fixedly provided with an outlet net 315, the mesh density of the outlet net 315 is the same as that of the second pneumatic diaphragm pump 307, and the outlet net 315 is used for preventing the third.

The vertical ball mill 3 is provided with a drive 5 in front, the lower end of the drive 5 is fixedly connected to the lower inner wall of the shell 1, the output shaft of the drive 5 is fixedly connected with a second gear 6, and the second gear 6 is meshed with the first gear 311.

When the device is used, raw materials are poured into the material inlet 203 step by step, then preliminary stirring is carried out in the stirring shell 201, the stirring blade 4 is arranged, in the stirring process, the scraping plate 405 can be thrown away in the direction away from the rotating rod 207 due to the action of centrifugal force, the scraping plate 405 can move along the sliding groove 403 due to the existence of the sliding groove 403, the scraping plate 405 can be continuously arranged at the rear end of the blade 401 when the stirring blade 4 rotates, after the rotation of the rotating rod 207 is stopped, the scraping plate 405 can be pulled back to the original position along the sliding groove 403 due to the characteristic of the spring 404, dry materials on the blade 401 can be removed in the pulling-back process, the waste of the raw materials is avoided, and the cost of the raw materials is saved; through the design of the discharge port 205 and the position relationship that the stirring blade 4 at the bottommost end is attached to the upper surface of the base plate 204, the dead angle of the connection between the base plate 204 and the stirring shell 201 can be stirred by the stirring blade 4 at the bottommost end, so that the raw material remaining at the dead angle is avoided, and the utilization rate of the raw material is improved; after the raw materials are pre-stirred in the stirring device 2, the raw materials enter the cylinder 305 through the discharge port 205, the inlet 301 and the inlet pipe 302 for grinding, and by adding the vertical ball mill 3, the conventional wet process is to gradually add various materials required by the formula and to match the stirring time and the rotation speed. The novel processing mode combines the traditional wet process and is matched with grinding equipment, a set of slurry stirring process with high matching degree is formulated and put into use, namely, the premixed slurry is transferred into the vertical ball mill 3, the dispersion effect is improved through the grinding of the first stirring ball 308, the second stirring ball 309 and the third stirring ball 310, the processing performance of the slurry is improved, the stirring period is shortened, and the purpose of reducing internal resistance and improving the performance of a battery is achieved; through the pneumatic diaphragm pump 306, the pneumatic diaphragm pump 307, the stirring ball 308, the stirring ball 309 and the stirring ball 310, the slurry entering the vertical ball mill 3 is ground in a grading manner, the quality of the processed slurry is greatly improved, in order to improve the stability and consistency of the slurry, grinding processing is added, the fluidity of the slurry is enhanced, the internal stress is reduced, the speed is high, the particle size is obviously thinned, and the effect is obvious.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel lithium electricity thick liquids processing grinding device, includes shell (1), the inside of shell (1) is provided with agitating unit (2) and vertical ball mill (3), agitating unit (2) are including stirring shell (201), dead lever (202) and pan feeding mouth (203), its characterized in that: a fixed rod (202) is fixedly connected to the left side of the stirring shell (201), the left end of the fixed rod (202) is fixedly connected to the left inner wall of the shell (1), the upper surface of the stirring shell (201) is fixedly connected with a feeding port (203), the feeding port (203) is communicated with the interior of the stirring shell (201), a chassis (204) is arranged below the stirring shell (201), the chassis (204) is fixedly connected with the lower end of the stirring shell (201), a discharge hole (205) is formed in the right side of the upper surface of the base plate (204), a motor (206) is arranged below the base plate (204), the upper end of the motor (206) is fixedly connected to the chassis (204), the output shaft of the motor (206) is fixedly connected with the rotating rod (207), the rotating rod (207) is arranged above the chassis (204), and the stirring blades (4) are uniformly arranged on the outer side of the rotating rod (207) at equal intervals.

2. The novel lithium battery slurry processing and grinding equipment as claimed in claim 1, wherein: the number of the stirring blades (4) is three, the stirring blades (4) at the bottom layer are attached to the upper surface of the chassis (204), the stirring blade (4) comprises a blade (401), a round hole (402) and a chute (403), the front end of the upper surface of the blade (401) is provided with a round hole (402), the round hole (402) is sleeved outside the rotating rod (207), the round hole (402) is matched with the rotating rod (207), the round hole (402) is fixedly connected with the rotating rod (207), the right side surface of the blade (401) is provided with a sliding chute (403), the front inner wall of the sliding chute (403) is fixedly connected with a spring (404), the front end of the spring (404) is fixedly connected with a scraper (405), the left end of the scraper (405) is inserted into the sliding groove (403), the scraper blade (405) is adapted to the sliding groove (403), and the upper end and the lower end of the scraper blade (405) are attached to the surface of the blade (401).

3. The novel lithium battery slurry processing and grinding equipment as claimed in claim 1, wherein: the lower extreme of agitating unit (2) is provided with attritor mill (3), attritor mill (3) is including entering mouth (301), inlet tube (302) and support (303), the upper end fixed connection of entering mouth (301) is on chassis (204), it is just right with discharge gate (205) to enter mouth (301), it communicates with each other with discharge gate (205) to enter mouth (301), the right-hand member fixedly connected with inlet tube (302) of entering mouth (301), the lower extreme fixedly connected with support (303) of inlet tube (302), the lower extreme fixed connection of support (303) is on the lower inner wall of shell (1), the right-hand member outside fixedly connected with bearing (304) of inlet tube (302), the outer lane fixedly connected with barrel (305) of bearing (304), barrel (305) communicate with each other with the inside of bearing (304).

4. The novel lithium battery slurry processing and grinding equipment as claimed in claim 3, wherein: the inner side wall of the barrel body (305) is fixedly connected with a first pneumatic diaphragm pump (306) and a second pneumatic diaphragm pump (307), the second pneumatic diaphragm pump (307) is positioned on the right side of the first pneumatic diaphragm pump (306), a first stirring ball (308), a second stirring ball (309) and a third stirring ball (310) are placed in the barrel body (305), the first stirring ball (308) is positioned on the left side of the first pneumatic diaphragm pump (306), the second stirring ball (309) is positioned on the right side of the first pneumatic diaphragm pump (306), the second stirring ball (309) is positioned on the left side of the second pneumatic diaphragm pump (307), the third stirring ball (310) is positioned on the right side of the second pneumatic diaphragm pump (307), the outer side of the left end of the barrel body (305) is fixedly connected with a first gear (311), the right side of the barrel body (305) is provided with an outlet (312), the outer side of the left end of the outlet (312) is, the inside of barrel (305) is inserted in bearing two (313), the outer lane and barrel (305) fixed connection of bearing two (313), export (312) and barrel (305) are inside to communicate with each other, the downside fixedly connected with support two (314) of export (312), the lower extreme fixed connection of support two (314) is on the lower inner wall of shell (1), fixed mounting has export net (315) on the right port inner wall of export (312), the mesh density of export net (315) is the same with the mesh density of pneumatic diaphragm pump two (307).

5. The novel lithium battery slurry processing and grinding equipment as claimed in claim 3, wherein: the front of the vertical ball mill (3) is provided with a drive (5), the lower end of the drive (5) is fixedly connected to the lower inner wall of the shell (1), an output shaft of the drive (5) is fixedly connected with a second gear (6), and the second gear (6) is meshed with the first gear (311).