CN115156213A

CN115156213A - Conveying pipeline cleaning device, cleaning unit and cleaning method

Info

Publication number: CN115156213A
Application number: CN202210810350.9A
Authority: CN
Inventors: 杨浩; 崔星星; 刘琴; 向敏
Original assignee: Chengdu Box Electric Iot Technology Co ltd
Current assignee: Chengdu Box Electric Iot Technology Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-10-11

Abstract

The invention discloses a cleaning device for a conveying pipeline, which belongs to the field of cleaning of conveying pipelines, is arranged in the conveying pipeline and can be driven by fluid to advance along the cleaning direction on the conveying pipeline, and comprises: a head part whose sectional area is narrowed along a washing direction to reduce an advancing resistance of the cleaning device; the rotating part is connected with the head part or integrally formed, the rotating part comprises a plurality of blades, the blades can be driven by fluid flowing along a cleaning direction and rotate around the cleaning direction, the periphery formed by the blades and the inner diameter of the conveying pipeline are matched with each other so that the inner wall of the conveying pipeline can be cleaned when the blades rotate, and the cleaning unit and the cleaning method are further included.

Description

Conveying pipeline cleaning device, cleaning unit and cleaning method

Technical Field

The invention relates to the technical field of slurry conveying pipeline cleaning.

Background

The positive and negative electrode slurry of the lithium battery is a suspension of a heterogeneous system, and is often deposited in a slurry conveying pipeline due to the fact that the flow velocity of a retention layer is slow and the wall of the pipeline is gradually settled under the action of gravity, and particularly during large-scale production, the slurry is more prone to settling due to the fact that the conveying pipeline is particularly long. Typically, swelling is achieved only by solvent washing, but it is difficult to clean thoroughly. In particular in the case of very different formulations, it is possible for the active substance in the deposit to become partially swollen and to be incorporated into other formulations and ultimately to affect the performance of the lithium battery.

Disclosure of Invention

The invention aims to: in view of the problems in the prior art, a cleaning device for a conveying pipeline is disclosed, which is installed in the conveying pipeline and can be driven by fluid to advance along the conveying pipeline along a cleaning direction, the cleaning device comprises:

a head part whose sectional area is narrowed along a washing direction to reduce an advancing resistance of the cleaning device;

the rotating part, it is connected or the integrated into one piece with the head, and the rotating part is including a plurality of blade, the blade can be by the fluid drive that flows along the washing direction and around washing direction rotation, and the periphery that the blade formed and pipeline's internal diameter match each other so that the inner wall that can clean pipeline when the blade is rotatory.

In the middle of the improved technical scheme, the rotating part be connected with the afterbody, the afterbody is including afterbody body and a plurality of brush hair of being connected with the rotating part, the brush hair is installed on the afterbody body, the blade rotation can drive the brush hair and rotate, the brush hair rotates and cleans again pipeline's inner wall.

In the improved technical scheme, the sectional area of the tail body is contracted against the cleaning direction, and the brush is arranged at the tail end of the tail body.

In the improved technical scheme, the rotating part and the head part are fixedly connected or integrally formed, and the rotating blade can drive the head part to rotate around the cleaning direction.

The invention also discloses a conveying pipeline cleaning unit, which comprises:

a first storage unit that is connectable to the transport pipe, stores a fluid for cleaning the transport pipe, and transports the fluid to the transport pipe;

the cleaning device is positioned in the conveying pipeline.

In an improved technical scheme, the first storage part comprises a pump body, the pump body is connected with the conveying pipeline, and the pump body provides flowing fluid for the conveying pipeline.

In the improved technical scheme, the cleaning unit further comprises a second storage part, the first storage part and the second storage part are located at two ends of the conveying pipeline, the second storage part collects fluid in the conveying pipeline, a filtering part is arranged between the second storage part and the first storage part, the fluid collected by the second storage part is conveyed to the first storage part after passing through the filtering part, and the filtering part is used for filtering impurities in the fluid.

The invention also discloses a cleaning method of the conveying pipeline, which comprises the following steps:

placing the cleaning device in a conveying pipeline, and connecting the conveying pipeline with the first storage part;

the first reservoir is activated to deliver fluid to the delivery conduit and drive the cleaning device to rotate and advance within the delivery conduit.

In a modified scheme, the fluid in the step 2 is a gas-liquid mixture.

The method further comprises the following steps: and collecting the fluid in the conveying pipeline through the second storage part, and conveying the fluid to the first storage part after filtering.

According to the invention, only one cleaning device is required to be placed in the pipeline, an additional driving device is not required to be installed in the cleaning device, the cleaning device can be driven to rotate only by conveying a gas-liquid mixture into the pipeline, and the cleaning work is completed through two times of cleaning.

Compared with the existing cleaning mode, the automatic pipe wall cleaning device has the advantages that a simple cleaning structure is adopted, the pressure generated when the slurry conveying pipe is pumped and washed is utilized to drive the cleaning cone to move towards the liquid flowing direction and the turbine blades and the cleaning brush to move in the self-rotating direction, so that the aim of automatically cleaning the pipe wall is fulfilled, the time is saved, and the cleaning efficiency can be ensured. Therefore, compared with the prior art, the cleaning efficiency, the convenience and the cost of the invention are greatly improved.

Drawings

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

FIG. 2 is a schematic view of a bristle;

FIG. 3 is a schematic view of a cleaning unit;

the labels in the figure are: 100-cleaning device, 110-head, 120-rotating part, 121-blade, 130-tail, 131-tail body, 132-bristles, 1321-bristle bar, 200-conveying pipe, 300-first storage part, 400-pump body, 500-second storage part, 600-filtering part. .

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a simple technical scheme for cleaning positive and negative electrode slurry of a lithium battery to realize efficient self-rotation cleaning of a slurry conveying pipeline, and particularly relates to a lithium battery slurry cleaning device, a cleaning unit and a cleaning method. The cleaning device for the lithium ion battery slurry conveying pipeline is suitable for cleaning lithium ion battery anode slurry, cathode slurry and other functional coating slurry conveying pipelines.

Specifically, as shown in fig. 2, the cleaning device for lithium battery slurry conveying pipeline of the present invention is installed in the conveying pipeline and can be driven by fluid to advance along the cleaning direction in the conveying pipeline, as shown in fig. 2, the direction of the arrow is the cleaning method, i.e. the direction in which the cleaning device and the cleaning fluid advance.

As shown in fig. 1, the cleaning apparatus includes a head portion 110, a rotation portion 120, and a tail portion 130. The head 110, which has a cross-sectional area narrowed in a washing direction to reduce the forward resistance of the cleaning device, in a preferred embodiment, the head 110 has a cone structure with a tip at the end. The structure of cone can reduce the resistance that cleaning device gos forward in the pipeline when rotatory to the point can be with the centre impurity of treating the clearance extrusion to the pipeline's of treating inner wall edge in order to make things convenient for further cleanness.

Continuing as shown in fig. 1, the rotating portion 120 and the head portion are connected or integrally formed, the edge of the rotating portion 120 includes a plurality of blades 121, the blades 121 are uniformly distributed on the edge of the rotating portion to form a turbine structure, the surface of the blade 121 is smooth, and the surface of the joint of the blade and the body is smooth, so as to reduce the generation of eddy currents. Preferably, the blade has the curved surface structure in order when along the fluid that washs the direction flow, can drive the blade rotation, and then makes the rotating part 120 rotatory, and the periphery that the blade formed and pipeline's internal diameter mutually match (preferred pipeline internal diameter and the poor 0.5mm of blade external diameter) can fully scrape when making the blade rotatory and wash and erode the inner wall of pipeline, can compromise cleaning efficiency when not influencing the rotational speed.

In a preferred embodiment, when the rotating portion 120 rotates, the head does not rotate, in this way, the rotating portion 120 is a ring structure, the blades are located on the outer periphery of the ring, the outer diameter of the blades is matched with the inner diameter of the conveying pipeline, the rotating speed is not affected, and the cleaning efficiency is also considered. The ring passes through the center connection of bearing and rotating part, the center and the head fixed connection or integrated into one piece of rotating part. In other preferred embodiments, the rotating portion is fixedly connected to the head portion, and the head portion is rotated by the rotating portion, in which case the rotating portion is preferably a cylindrical structure, the blades are located around the cylindrical structure, and the cylindrical structure and the head portion are fixedly connected or integrally formed.

Preferably, the rotating portion is made of Teflon, so that the weight is reduced, the corrosion of the cleaning device is reduced, the damage to the pipe wall is reduced, and other potentially harmful substances are prevented from entering the slurry.

Preferably, magnets are embedded within the cleaning device (e.g., within the rotating interior), preferably using horseshoe magnets (or other magnet detectors) for quick location and retrieval (to find the final jam location).

As shown in fig. 1, the rotating part is connected to the tail 130, the tail 130 includes a tail body 131 connected to the rotating part and a plurality of bristles 132, the bristles 132 are mounted on the tail body 131, preferably, the bristles 132 are mounted at the end of the tail body 131, the tail body 131 is connected to a fixing ring, and the bristles 132 are located on the fixing ring.

The rotation of the blades 121 can drive the bristles 132 to rotate, the bristles rotate to re-clean the residues on the inner wall of the conveying pipeline, and the re-cleaned residues can be washed by fluid.

In the preferred embodiment, aft body 131 is tapered in cross-sectional area against the cleaning direction, and more preferably aft body 131 is a cone-like structure having a maximum cross-sectional area at the junction with swivel 120 and tapers at the end of the aft body. This kind of structure for afterbody body 131 can wash under the pressurized effect at the pump and carry out progressively pressurizeing to fluid (gas-liquid mixture) before reaching the blade when having fluid (gas-liquid mixture) to pass through, and then improves the rotatory drive power of drive blade, increases clean effect, and the pressurization gas-liquid mixture of turbine blade that flows through also can pressurize the washing to the pipe wall, and hydraulic pressure can also promote cleaning device to clean direction motion and quick rotation cleaning pipe wall.

Preferably, the surfaces of the head portion 110 and the tail portion body 131 are smooth, so that the generation of eddy current can be effectively reduced.

In the preferred embodiment, the bristles are uniformly distributed in a plane, and in order not to affect the fluid flow rate, the brush takes a plurality of bristle bundles, each of which is formed by several bristle bars 1321. The outer diameter of the bristles on this plane matches the inner diameter of the tube (preferably with a gap of 0.5 mm).

As shown in fig. 3, the present embodiment further discloses a conveying pipeline cleaning unit, which includes a first storage portion 300, a cleaning device 100, and a second storage portion 500. The first storage part 300, which can be connected to a transportation pipeline, stores a fluid for cleaning the transportation pipeline, preferably water, and transports the fluid to the transportation pipeline; the cleaning device 100 is located in the delivery conduit. The first reservoir comprises a pump body 400, the pump body 400 being connected to a delivery conduit which is supplied with a flowing fluid, preferably a gas-liquid mixture. The first storage part 300 and the second storage part 500 are positioned at two ends of a conveying pipeline, the second storage part collects fluid in the conveying pipeline, a filtering part 600 is arranged between the second storage part 500 and the first storage part 300, the fluid collected by the second storage part is conveyed to the first storage part 300 after passing through the filtering part 600, and the filtering part is used for filtering impurities in the fluid. Preferably, the liquid amount in the first storage portion 500 is about half of the liquid amount in the pipe to be cleaned, so as to generate a better pressure of the gas-liquid mixture on the cleaning device 100 during the pump washing and push the blades to rotate the whole cleaning device.

The embodiment further discloses a cleaning method for the conveying pipeline, which comprises the following steps:

firstly, the cleaning device 100 of the embodiment is placed in a conveying pipeline, and the front bristles of the head are placed in the back flushing direction (as shown in fig. 3); the transfer pipe is connected to the first storage unit 300 and the second storage unit 300,

step two, starting the pump body 400 in the first storage part 300, conveying fluid to the conveying pipeline and driving the cleaning device to rotate and advance in the conveying pipeline, wherein the preferable fluid is a gas-liquid mixture, and the pump body 400 is pressurized to form the gas-liquid mixture;

and step three, collecting the fluid in the conveying pipeline through the second storage part, filtering the fluid and conveying the filtered fluid to the first storage part 300.

The fluid in the transfer pipe is collected by the second storage part, filtered, and transferred to the first storage part 300. The cleaned-out residues and the outflowing cleaning device are filtered out in the filtering part, and one cleaning operation is completed.

Preferably, prior to step one, deionized water is injected into the transfer line to be cleaned to swell the settled heap as much as possible. In order to more efficiently complete the cleaning operation, a plurality of cleaning cones can be simultaneously put into the conveying pipeline to be cleaned.

The invention can be used not only on lithium battery slurry, but also on other similar conveying pipelines.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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. A conveyor line cleaning apparatus, characterized in that it is mounted in a conveyor line and is capable of being advanced along said conveyor line in a cleaning direction by fluid, said cleaning apparatus comprising:

a head (110) which is reduced in cross-sectional area in a washing direction to reduce the forward resistance of the cleaning device;

the rotating part (120) is connected with the head part or integrally formed, the rotating part (120) comprises a plurality of blades (121), the blades can be driven by fluid flowing along the cleaning direction and rotate around the cleaning direction, the peripheries formed by the blades and the inner diameter of the conveying pipeline are matched with each other, so that the inner wall of the conveying pipeline can be cleaned when the blades rotate.

2. The conveying pipeline cleaning device as claimed in claim 1, wherein the tail portion (130) is connected to the rotating portion, the tail portion (130) comprises a tail portion body (131) connected to the rotating portion and a plurality of bristles (132), the bristles (132) are mounted on the tail portion body (131), the bristles (132) can be driven to rotate by rotation of the blades (121), and the inner wall of the conveying pipeline is cleaned again by rotation of the bristles.

3. The conveying pipe cleaning apparatus as claimed in claim 2, wherein the tail body (131) is constricted in cross-sectional area against the washing direction, and the brush (132) is installed at the distal end of the tail body (131).

4. The conveying pipe cleaning apparatus according to claim 1, wherein the rotary unit (120) and the head unit (110) are fixedly connected or integrally formed, and the rotation of the blade can drive the head unit (110) to rotate about the cleaning direction.

5. Conveying pipeline cleaning unit, its characterized in that is including:

a first storage unit (300) that can be connected to a transport pipe, stores a fluid for cleaning the transport pipe, and transports the fluid to the transport pipe;

the cleaning device (100) of any of claims 1-4, which is located in a delivery conduit.

6. The delivery conduit cleaning unit according to claim 5, wherein the first reservoir comprises a pump body (400), the pump body (400) being connected to the delivery conduit for supplying pressurized fluid to the delivery conduit.

7. The conveying pipeline cleaning unit according to claim 5, wherein the cleaning unit further comprises a second storage part (500), the first storage part (300) and the second storage part (500) are located at two ends of the conveying pipeline, the second storage part collects the fluid in the conveying pipeline, a filtering part (600) is arranged between the second storage part (500) and the first storage part (300), the fluid collected by the second storage part is conveyed to the first storage part (300) after passing through the filtering part (600), and the filtering part is used for filtering impurities in the fluid.

8. The conveying pipeline cleaning method is characterized by comprising the following steps:

1) Placing the cleaning device according to any one of claims 1-4 in a transport conduit, connecting the transport conduit to a first reservoir (300);

2) The first reservoir (300) is activated to deliver fluid to the delivery conduit and drive the cleaning device to rotate and advance within the delivery conduit.

9. The method for cleaning a conveying pipeline according to claim 8, wherein the fluid in the step 2 is a gas-liquid mixture.

10. The method of cleaning a conveying pipe as claimed in claim 8 or 9, wherein the method further comprises:

3) The fluid in the conveying pipeline is collected through the second storage part, filtered and conveyed to the first storage part (300).