CN212892322U

CN212892322U - Screw conveyer for conveying battery anode material particles

Info

Publication number: CN212892322U
Application number: CN202021292051.3U
Authority: CN
Inventors: 李钟斤
Original assignee: Nanjing Wake Machinery Equipment Co ltd
Current assignee: Nanjing Wake Machinery Equipment Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-04-06
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses a screw conveyer for carrying battery anode material particle, including the casing, the both ends of casing are equipped with the seal receptacle, and the outside of seal receptacle is fixed with the bearing housing, are equipped with the screw axis in the casing, and the both ends of screw axis are stretched out the seal receptacle and are passed through during the bearing housing is rotatable to be located to the bearing, and wherein one end screw axis stretches out the bearing housing and connects drive arrangement, and the casing top is equipped with the toper feed inlet, and the bottom of casing is equipped with the discharge gate, and the casing top that corresponds with the discharge gate is equipped with the detection mouth. This novel screw conveyer's toper feed inlet links to each other with the discharge gate that the positive pole material holding vessel was transferred to the trace, transfers the material that the positive pole material holding vessel was transferred to the trace and carries the rubbing crusher and circulate and smash, through the crushing quality at detection mouthful sample detection positive pole material particle, the stop cycle is smashed after the quality is qualified, the ejection of compact is to next process.

Description

Screw conveyer for conveying battery anode material particles

Technical Field

The utility model relates to a lithium battery material, concretely relates to screw conveyer for carrying battery anode material particle.

Background

The anode material for producing the lithium battery generally exists in a particle form, the particles of the anode material are not uniform, the thickness of a subsequent coating is directly caused to be non-uniform, if the anode material with the non-uniform thickness is used for manufacturing the battery, the battery can not be normally charged and discharged, and the service life of the battery is also shortened. Therefore, in actual production, the anode material particles are pulverized into powder. The existing crushing systems are all disposable, the particle size of the crushed particles is uneven, and the existing powdery particles can generate an overheating phenomenon in the high-temperature conveying process, so that the product quality is reduced.

The inventor of the application develops a battery anode material particle circulating crushing system, can crush the particles of the anode material uniformly and finely, can solve the overheating phenomenon in the processing process and improve the product quality. The system comprises an anode material dust removal storage tank, a micro transfer anode material storage tank, a screw conveyor and a pulverizer which are sequentially connected, wherein the pulverized raw materials of the pulverizer are conveyed to the anode material dust removal storage tank through an air pressure transfer device for cyclic pulverization. The screw conveyer plays a role in conveying materials in the micro-transferring anode material storage tank to the crusher for crushing in the system, and is the main equipment of the system.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a screw conveyer for carrying battery anode material particle.

The utility model adopts the technical proposal that:

the utility model provides a screw conveyer for carrying battery anode material particle, which comprises a housin, the both ends of casing are equipped with the seal receptacle, the outside of seal receptacle is fixed with the bearing shell, be equipped with the screw axis in the casing, the both ends of screw axis are stretched out the seal receptacle and are rotatable to be located in the bearing shell through the bearing, wherein one end screw axis stretches out the bearing shell and passes through chain drive and connect drive arrangement, the casing top that is close to drive arrangement one end is equipped with the toper feed inlet, the bottom of other end casing is equipped with the discharge gate, the casing top that corresponds with the discharge gate is equipped with the detection mouth, drive arrangement drive screw axis is from the.

Furthermore, a combined sealing gasket for sealing the axial gap of the screw shaft is arranged in the sealing seat, and the combined sealing gasket is formed by clamping a Teflon gasket by two silicon gaskets.

Furthermore, the spiral shaft is provided with spiral blades with gradually increased pitches, and the spiral shaft at the discharging side is provided with a section of reverse spiral blade with the direction opposite to the spiral direction at the feeding side.

Further, the pitch of the counter-helical blade is equal to the pitch of the feed-side positive helical blade.

Furthermore, one surface of the shell and one surface of the spiral shaft contacting with the product are both provided with tetrafluoroethylene coatings.

Furthermore, the bearing shell is fixed on the outer side surface of the sealing seat through bolts, and a ball bearing is arranged in the bearing shell.

The utility model has the advantages that: this novel screw conveyer's toper feed inlet links to each other with the discharge gate that the positive pole material holding vessel was transferred to the trace, transfers the material that the positive pole material holding vessel was transferred to the trace and carries the rubbing crusher and circulate and smash, through the crushing quality at detection mouthful sample detection positive pole material particle, the stop cycle is smashed after the quality is qualified, the ejection of compact is to next process. This neotype screw conveyer reduces the powder through setting up the seal receptacle and reveals, prevents the jam of material in the screw through setting up variable pitch and reverse helical blade, has fully guaranteed that the particle diameter of positive pole material particle in the circulation crushing process is even.

Drawings

Fig. 1 is a schematic structural view of the screw conveyor of the present invention.

Fig. 2 is a schematic structural view of a screw shaft of the screw conveyor of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and a preferred embodiment.

Referring to fig. 1 to 3, the present embodiment provides a screw conveyor for conveying battery anode material particles, including a housing 1, where two ends of the housing are provided with sealing seats 3, the outer side of the sealing seat 3 is connected to a bearing housing 4 through bolts, a screw shaft 2 is arranged in the housing, two ends of the screw shaft extend out of the sealing seat 3 and are rotatably arranged in the bearing housing 4 through bearings 41, where one end of the screw shaft extends out of the bearing housing and is connected to a driving device 5 through a chain transmission mechanism 6, the top of the housing 1 near one end of the driving device is provided with a tapered feed port 101, the bottom of the housing at the other end is provided with a discharge port 102, the top of the housing corresponding to the discharge port is provided with a detection port 103, and the driving device. The structure and connection of the components will be described in detail below.

In this embodiment, sealing flanges 32 are welded to both end portions of the housing 1, the seal holder 3 is fixedly mounted on the sealing flanges 32 by bolts, and a rubber seal 33 is provided between the sealing flanges 32 and the seal holder 3. The inner side surface of the sealing seat 3, which is in contact with the screw shaft 2, is provided with a sealing cavity, a combined sealing gasket 31 is arranged in the sealing cavity, and the combined sealing gasket 31 is composed of two silicon gaskets 311 sandwiching a Teflon gasket 312. The housing 1 is sealed by the combination of the packing 31 and the rubber packing 33, and the leakage of the powder from the head of the screw shaft during the conveyance is prevented.

In the present embodiment, the screw shaft 2 is welded with the screw blades 21 with gradually increasing pitch, for example, the pitch of the first four screw blades is set to 140cm, the pitch of the middle two screw blades is set to 145cm, the pitch of the two screw blades close to the discharge port is set to 150cm, the screw shaft on the other side of the discharge port is provided with a section of counter-screw blade with opposite screw direction to the feeding side, and the pitch of the counter-screw blade is 140cm and equal to the feeding side. The screw shaft with gradually increased screw pitch can prevent the material from being excessively extruded to raise the temperature of the material during conveying, and can ensure smooth material conveying.

In this embodiment, in order to improve the product quality, the shell 1 and the screw shaft 2 are both provided with a tetrafluoroethylene coating on the surfaces contacting the product.

In this embodiment, the driving device 5 includes a motor and a speed reducer arranged in parallel with the screw shaft, an output shaft end of the speed reducer is connected with a driving sprocket, one end of the screw shaft 2 extending out of the bearing shell is connected with a driven sprocket, and the driving sprocket and the driven sprocket are connected through a belt.

The working mode of the system is as follows:

when the device is used, the conical feed inlet 101 is connected with a feed outlet of the micro-scale transferring anode material storage tank, the discharge outlet 102 is connected with an inlet of the pulverizer, the driving device 3 is started, the screw shaft 2 rotates, and materials falling from the micro-scale transferring anode material storage tank are conveyed to the pulverizer. The crushing quality of the anode material particles is detected by sampling in the detection port 103, and the screw conveyor stops working after the quality is qualified.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and the improvements and modifications are also within the protection scope of the present invention.

Claims

1. The screw conveyer for conveying battery anode material particles is characterized by comprising a shell, wherein sealing seats are arranged at two ends of the shell, a bearing shell is fixed on the outer side of each sealing seat, a screw shaft is arranged in the shell, two ends of the screw shaft extend out of the sealing seats and are rotatably arranged in the bearing shell through bearings, the screw shaft at one end extends out of the bearing shell and is connected with a driving device through a chain transmission mechanism, a conical feed inlet is formed in the top of the shell close to one end of the driving device, a discharge outlet is formed in the bottom of the shell at the other end, a detection port is formed in the top of the shell corresponding to the discharge outlet, and the driving device drives the screw.

2. The screw conveyor according to claim 1, wherein a combined sealing gasket for sealing an axial gap of the screw shaft is arranged in the sealing seat, and the combined sealing gasket is formed by clamping a Teflon gasket by two silicon gaskets.

3. The screw conveyor of claim 2, wherein the screw shaft is provided with a screw blade having a gradually increasing pitch, and the discharge side screw shaft is provided with a section of counter-screw blade having a direction opposite to the direction of the feed side screw.

4. The screw conveyor of claim 3, wherein the pitch of the counter-helical blade is equal to the pitch of the feed-side positive helical blade.

5. The screw conveyor of claim 1, wherein the housing and the product contacting surface of the screw shaft are coated with tetrafluoroethylene.

6. The screw conveyor according to claim 1, wherein the bearing housing is fixed to an outer side surface of the seal holder by a bolt, and the ball bearing is provided in the bearing housing.