WO2018120046A1

WO2018120046A1 - Battery negative electrode material mixing apparatus with cyclic pulverizing device

Info

Publication number: WO2018120046A1
Application number: PCT/CN2016/113568
Authority: WO
Inventors: 王爽
Original assignee: 深圳市玖创科技有限公司
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2018-07-05

Abstract

Disclosed is a battery negative electrode material mixing apparatus with a cyclic pulverizing device, the mixing apparatus comprising a mixing chamber (18), wherein a discharge pipe (26) is arranged at the bottom of the mixing chamber (18); a stirring mixing device (2) is arranged inside the mixing chamber (18); and the stirring mixing device (2) is formed by a bottom scraper (25), a through hole (20), first vertical rods (22), second vertical rods (21), a stirring shaft (23), a spiral stirring blade (24) and a stirring electric motor (19). The device is simple in structure, reasonable in design and convenient to use. With the arrangement of a pulverizing chamber (14), materials can undergo a pulverizing treatment; a filter plate (4) at the bottom of the pulverizing chamber (14) can filter out qualified materials in pulverization, then, small size and large size of materials are separated out by means of an inclined plate (16); large-particle materials can be input into the pulverizing chamber (14) again by means of a cyclic feeding device (27), in which a secondary pulverizing treatment is performed, small-particle materials are separated out by means of the inclined plate (16), then are input into the mixing chamber (18), where the materials and additives are mixed. With the stirring mixing device (2), the material mixing speed can be greatly improved, the material production time can be shortened, and the production rate can be increased.

Description

Battery anode material mixing device with circulating pulverizing equipment

Technical field

The invention relates to a battery production device, in particular to a battery negative electrode material mixing device with a circulating pulverizing device.

Background technique

Lithium battery refers to a battery containing lithium in an electrochemical system. Lithium batteries can be roughly divided into two types; lithium metal batteries and lithium ion batteries; lithium battery anode materials are mainly graphite, when producing lithium battery anodes, It is necessary to pulverize, screen, mix and other processes of graphite. Among them, pulverization is an important process, and the particle size after pulverization is required to be uniform and the pulverization efficiency is high; however, the particle size range of the pulverized particles of the existing pulverizing device is relatively large, In the process of post-screening, many particles do not meet the requirements of production and need to be reworked, and the efficiency of pulverization needs to be improved.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a battery negative electrode material mixing device having a cyclic pulverizing apparatus to solve the problems set forth in the above background art.

To achieve the above object, the present invention provides the following technical solutions:

A battery negative electrode material mixing device with a circulating pulverizing device, comprising a mixing chamber; a bottom of the mixing chamber is provided with a discharge pipe; a mixing and mixing device is arranged inside the mixing chamber, a sloping plate is arranged at the top, and an additive is arranged on the left side Into the tube, the right side is provided with a discharge opening, the bottom is provided with a base; the base is provided with a plurality of, and is evenly arranged at the bottom of the mixing chamber; the discharge tube is provided with two, and the symmetric arrangement is arranged at the bottom of the mixing The left and right sides of the motor; the agitation mixing device is composed of a bottom scraper, a through hole, a first vertical rod, a second vertical rod, a stirring shaft, a spiral stirring blade and a stirring motor; the stirring shaft is arranged in the mixing chamber Agitating the center line of the mixing chamber, and connecting the bottom plate of the bottom scraper and the mixing chamber to the stirring motor; the stirring motor is disposed on the bottom center line of the mixing chamber; the spiral stirring blade is sleeved on the stirring shaft The first vertical rod is provided with two, and is symmetrically disposed on the left and right sides of the stirring shaft, and the bottom is fixedly connected with the bottom scraper; the second vertical rod is provided with two, symmetrically disposed at The left and right ends of the scraper; the inclined plate is disposed obliquely in the mixing chamber, the right side is higher than the left side, and is fixedly connected to the left and right inner walls of the mixing chamber, and a vibrator is disposed at the bottom of the inclined plate; the top of the inclined plate a filter plate is disposed; the vibrator is provided in plurality, and is evenly disposed at the bottom of the inclined plate; the top of the filter plate is provided with a crushing chamber; the inside of the crushing chamber is provided with a crushing shaft, a crushing blade and an auxiliary blade; The top of the crushing chamber is provided with a support plate, and the right side is provided with a circulating feeding device, and the top of the supporting plate is provided with a crushing motor and a feeding tube; the crushing shaft is arranged on the center line of the crushing chamber, and penetrates the supporting plate and the crushing motor The pulverizing blades are provided in plurality and symmetrically disposed on the left and right sides of the pulverizing shaft; the auxiliary blades are provided in plurality, and are disposed on the left and right inner walls of the pulverizing chamber at the intersection with the pulverizing blades; a motor is disposed on a center line of the support plate; the feed tube is disposed on a left side of the pulverizing motor; and the circulating feeding device is provided by a circulating feed chamber, a screw feeding device, and a driving motor To; the auger feed means disposed in the circulation of the center line of the feed chamber, the bottom plate is connected via a bearing chamber with recycle feed, recycle feed through the top The top plate of the chamber is fixedly connected to the drive motor.

As a further aspect of the invention, the support plate is fixedly connected to the crushing chamber by bolts, and a feed port is provided on the right side of the drive motor.

As a further aspect of the invention, the drive motor, the vibrator, the agitating motor and the pulverizing motor are all connected to the power source via wires.

As a further aspect of the present invention, the pulverizing shaft, the pulverizing blade, the auxiliary blade, the first vertical rod, the second vertical rod, and the bottom squeegee are each provided with a wear layer.

As a further aspect of the present invention, the through holes are provided in plurality, and are evenly disposed on the second vertical rod and the bottom squeegee.

As a further aspect of the invention, the discharge opening is provided on the right wall of the mixing chamber, the top of the inclined plate, and is connected to the circulating feed device.

According to a further aspect of the invention, the left and right ends of the filter plate are fixedly connected to the left and right inner walls of the pulverization chamber.

As a still further aspect of the present invention, the additive inlet pipe is disposed at the bottom of the right inclined plate of the mixing chamber.

Compared with the prior art, the beneficial effects of the present invention are:

The invention has the advantages of simple structure, reasonable design and convenient use; the setting of the crushing chamber can pulverize the material, and the filter plate at the bottom of the crushing chamber can filter the crushed materials, and then separate the large and small materials by the inclined plate, The granular material can be re-input into the pulverizing chamber through the circulating feeding device for secondary pulverization treatment, and the small granule material is separated by the inclined plate to be input into the mixing chamber to mix the material with the additive; the stirring and mixing device can greatly improve the material mixing. The speed, the material production time is reduced, the production rate is increased, and the vibrator is more convenient to separate the large and small particles uniformly, thereby greatly improving the mixing quality of the materials.

DRAWINGS

1 is a schematic view showing the structure of a battery negative electrode material mixing device having a circulating pulverizing apparatus.

2 is a schematic view showing the structure of a stirring and mixing device in a battery negative electrode material mixing device having a circulating pulverizing apparatus.

In the picture: 1-base, 2-stirring mixing device, 3-additive inlet tube, 4-filter plate, 5-assisted blade, 6-bolt, 7-feed tube, 8-pulverized motor, 9-support plate, 10 -Drive motor, 11-grinding shaft, 12-grinding blade, 13-screw feeding device, 14-grinding chamber, 15-discharge port, 16-tilt plate, 17-vibrator, 18-mixing chamber, 19-stirring Motor, 20-through hole, 21-second vertical rod, 22-first vertical rod, 23-stirring shaft, 24-spiral stirring blade, 25-bottom scraper, 26-discharge tube, 27-cycle feed Device, 28-cycle feed chamber.

detailed description

The technical solutions of the present patent are further described in detail below in conjunction with specific embodiments.

Referring to FIG. 1-2, a battery negative electrode material mixing device with a circulating pulverizing device includes a mixing chamber 18; The bottom of the mixing chamber 18 is provided with a discharge pipe 26; the inside of the mixing chamber 18 is provided with a stirring mixing device 2, the top is provided with an inclined plate 16, the left side is provided with an additive inlet pipe 3, and the right side is provided with a discharge opening 15, the bottom a base 1 is provided for mixing materials; the base 1 is provided with a plurality of, and is evenly disposed at the bottom of the mixing chamber 18 for supporting the device and ensuring stability of the device; The material pipe 26 is provided with two, and is symmetrically disposed on the left and right sides of the bottom agitating motor 19 for discharging the uniformly stirred material; the agitating and mixing device 2 is composed of a bottom scraper 25, a through hole 20, and a first vertical rod 22. A second vertical rod 21, a stirring shaft 23, a helical stirring blade 24 and a stirring motor 19 for stirring and mixing the material and the additive; the stirring shaft 23 is disposed at the center of the mixing chamber 18 of the mixing chamber 18. The bottom plate, which runs through the bottom scraper 25 and the mixing chamber 18, is connected to the agitating motor 19 for agitating the material; the agitating motor 19 is disposed on the bottom center line of the mixing chamber 18 for mixing and mixing Device 2 increases power; The spiral stirring blade 24 is sleeved on the stirring shaft 23, and the mixing and mixing of the materials can be conveniently carried out, and the material can be turned upside down to accelerate the mixing and mixing rate of the material; the first vertical rod 22 is provided with two And symmetrically disposed on the left and right sides of the agitating shaft 23, the bottom is fixedly connected with the bottom scraper 25 for accelerating the mixing rate of the material; the second vertical rod 21 is provided with two, symmetrically disposed on the bottom scraper 25 The left and right ends are used to accelerate the mixing rate of the material; the inclined plate 16 is obliquely disposed in the mixing chamber 18, and the right side is higher than the left side, and is fixedly connected to the left and right inner walls of the mixing chamber 18, and at the bottom of the inclined plate 16 A vibrator 17 is provided for separating the materials so that the size material particles are separated; the top of the inclined plate 16 is provided with a filter plate 4; the vibrator 17 is provided with a plurality of, and is evenly disposed on the inclined plate 16 The bottom portion is used for vibrating the inclined plate 16 to accelerate the separation rate of the material and increase the production rate of the material; the top of the filter plate 4 is provided with a crushing chamber 14 for filtering out the material; the internal setting of the crushing chamber 14 There is a pulverizing shaft 11, a pulverizing blade 12 and an auxiliary blade 5; a top of the pulverizing chamber 14 is provided with a supporting plate 9, and a right side is provided with a circulating feeding device 27, and a top of the supporting plate 9 is provided with a pulverizing motor 8 and a feeding tube 7, For the pulverization of the material, the production quality of the material is greatly improved; the pulverizing shaft 11 is disposed on the center line of the pulverizing chamber 14, and is connected to the pulverizing motor 8 through the supporting plate 9; the pulverizing blade 12 is provided with a plurality of Symmetrically disposed on the left and right sides of the pulverizing shaft 11; the auxiliary blade 5 is provided in plurality, and is disposed on the left and right inner walls of the pulverizing chamber 14 so as to intersect with the pulverizing blade 12, and the pulverizing blade 12 and the auxiliary blade 5 are disposed at the intersection, The material pulverizing effect is accelerated to make the material pulverization more thorough; the pulverizing motor 8 is disposed on the center line of the support plate 9 for supplying power to the pulverizing shaft 11; the feeding tube 7 is disposed at the left of the pulverizing motor 8 Side for material entry; the circulating feed device 27 is composed of a circulating feed chamber 28, a screw feed device 13 and a drive motor 10 for inputting large particulate material into the crushing chamber 14 for secondary crushing Greatly The pulverizing mass of the material; the screw feeding device 13 is disposed on the center line of the circulating feed chamber 28, the bottom portion is connected to the bottom plate of the circulating feed chamber 28 through a bearing, and the top portion is driven through the top plate and the driving of the circulating feed chamber 28. The motor 10 is fixedly connected for re-inputting the material into the crushing chamber 14 for secondary pulverization; the invention has the advantages of simple structure, reasonable design and convenient use; the setting of the pulverizing chamber 14 can pulverize the material, and the bottom of the pulverizing chamber 14 The filter plate 4 is capable of filtering out the pulverized material, and then separating the size materials by the inclined plate 16, which is large The granular material can be re-introduced into the pulverizing chamber 14 through the circulating feeding device 27, and subjected to secondary pulverization treatment, and the small granular material is separated by the inclined plate 16 to be input into the mixing chamber 18 to mix the material with the additive; the stirring and mixing device 2 can greatly improve the material mixing rate, reduce the material production time, increase the production rate, the vibrator 17 more convenient to separate the size of the particles evenly, greatly improving the mixing quality of the material.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments, and can be made without departing from the gist of the patents within the scope of the knowledge of those skilled in the art. Various changes.

Claims

A battery negative electrode material mixing device with a circulating pulverizing device, comprising a mixing chamber (18); characterized in that a bottom of the mixing chamber (18) is provided with a discharge pipe (26); an internal setting of the mixing chamber (18) There is a stirring mixing device (2), the top is provided with a sloping plate (16), the left side is provided with an additive inlet pipe (3), the right side is provided with a discharge opening (15), and the bottom is provided with a base (1); the base (1) a plurality of disposed, and uniformly disposed at the bottom of the mixing chamber (18); the discharge tube (26) is provided with two, and is symmetrically disposed on the left and right sides of the bottom stirring motor (19); The agitating mixing device (2) consists of a bottom scraper (25), a through hole (20), a first vertical rod (22), a second vertical rod (21), a stirring shaft (23), a spiral stirring blade (24) And a stirring motor (19); the stirring shaft (23) is disposed on a center line of the mixing and mixing chamber (18) of the mixing chamber (18), and penetrates the bottom plate of the bottom scraper (25) and the mixing chamber (18) Connected to a stirring motor (19); the stirring motor (19) is disposed on a bottom center line of the mixing chamber (18); the spiral stirring blade (24) is sleeved on the stirring shaft (23); The first vertical rod (22) is provided with And symmetrically disposed on the left and right sides of the stirring shaft (23), the bottom is fixedly connected with the bottom scraper (25); the second vertical rod (21) is provided with two, symmetrically disposed on the bottom scraper (25) The left and right ends; the inclined plate (16) is obliquely disposed in the mixing chamber (18), the right side is higher than the left side, and is fixedly connected to the left and right inner walls of the mixing chamber (18), and is in the inclined plate (16) The bottom is provided with a vibrator (17); the top of the inclined plate (16) is provided with a filter plate (4); the vibrator (17) is provided with a plurality of, and is evenly disposed at the bottom of the inclined plate (16); The top of the plate (4) is provided with a pulverizing chamber (14); the inside of the pulverizing chamber (14) is provided with a pulverizing shaft (11), a pulverizing blade (12) and an auxiliary blade (5); and a top of the pulverizing chamber (14) A support plate (9) is provided, and a circulation feeding device (27) is disposed on the right side, and a crushing motor (8) and a feeding pipe (7) are disposed at the top of the supporting plate (9); the crushing shaft (11) is disposed On the center line of the pulverizing chamber (14), the through-supporting plate (9) is connected to the pulverizing motor (8); the pulverizing blade (12) is provided in plurality, and symmetrically disposed on the left and right sides of the pulverizing shaft (11) Side; the auxiliary blade (5) is set a plurality of, and intersecting with the pulverizing blade (12) on the left and right inner walls of the pulverizing chamber (14); the pulverizing motor (8) is disposed on a center line of the supporting plate (9); the feeding tube (7) Provided on the left side of the pulverizing motor (8); the circulating feeding device (27) is composed of a circulating feed chamber (28), a screw feeding device (13) and a driving motor (10); the screw feeding The device (13) is disposed on the center line of the circulating feed chamber (28), the bottom portion is connected to the bottom plate of the circulating feed chamber (28) through a bearing, and the top portion runs through the top plate of the circulating feed chamber (28) and the driving motor (10) ) Fixed connection.
The battery negative electrode material mixing device with a cyclic pulverizing apparatus according to claim 1, wherein the support plate (9) is fixedly connected to the pulverizing chamber (14) by bolts (6), and the driving motor (10) The feed port is provided on the right side.
The battery negative electrode material mixing device with a circulating pulverizing apparatus according to claim 1, wherein the driving motor (10), the vibrator (17), the stirring motor (19), and the pulverizing motor (8) are all passed through a wire Connected to the power supply.
The battery negative electrode material mixing device with a cyclic pulverizing apparatus according to claim 1, wherein the pulverizing shaft (11), the pulverizing blade (12), the auxiliary blade (5), the first vertical rod (22), Second vertical rod (21) and bottom scraper (25) A wear layer is provided on both sides.
A battery negative electrode material mixing device with a circulating pulverizing apparatus according to claim 1, wherein said through hole (20) is provided in plurality, and is uniformly disposed on the second vertical rod (21) and the bottom scraper (25) on the top.
A battery negative electrode material mixing device with a circulating pulverizing apparatus according to claim 1, wherein said discharge opening (15) is disposed on a right wall of the mixing chamber (18), at the top of the inclined plate (16), and It is connected to the circulating feed device (27).
The battery negative electrode material mixing device according to claim 1, wherein the left and right ends of the filter plate (4) are fixedly coupled to the left and right inner walls of the pulverizing chamber (14).
A battery negative electrode material mixing device having a circulating pulverizing apparatus according to claim 1, wherein said additive inlet pipe (3) is provided at a bottom of a right inclined plate (16) of the mixing chamber (18).