CN207562447U - For filtering the filter device of lithium ion slurry - Google Patents

Abstract

The utility model provides a kind of filter device for being used to filter lithium ion slurry, and the hollow cylinder including both ends open is connected to the end of hollow cylinder and is closed the open-ended door and is wrapped in the filter assemblies on hollow cylinder outer wall and between two doors；Connection its internal multiple through-hole are offered on the outer wall of hollow cylinder, enter interface inside hollow cylinder for lithium ion slurry wherein being formed on a door, interface is connected with the inside of hollow cylinder.The advantageous effect of filter device provided by the utility model for filtering lithium ion slurry is：The filter device that the filter device of the utility model is formed using hollow cylinder and filter assemblies, filter assemblies are made of nonmetallic filter screen, avoid secondary pollution of the metal filter screen to lithium ion slurry；Meanwhile filter assemblies are wrapped on hollow cylinder outer wall, the filter apparatus configuration is simple, and the installation and removal of filter assemblies are all very convenient, at low cost and good filtration effect.

Description

For filtering the filter device of lithium ion slurry

Technical field

The utility model belongs to cell manufacturing techniques field, is to be related to one kind to starch for filtering lithium ion more specifically The filter device of material.

Background technology

In conventional lithium ion slurry manufacturing technology, the filter screen that lithium ion pulp filtering device uses is all metal mesh, Using metal filtration net filtration lithium ion slurry one side poor filtration effect, it is impossible to effectively stop little particle；On the other hand, due to For metal material intolerant to slurry corrosion, foreign metal ion is easily generated in filter process leads to lithium ion slurry by secondary dirt Dye, so as to influence the performance of battery product.In addition, the system of traditional filtering device is more complicated, cost is higher.

Utility model content

The purpose of this utility model is to provide a kind of for filtering the filter device of lithium ion slurry, to solve existing skill Lithium ion slurries filtration effect is poor present in art, be also easy to produce metal ion pollution and technology that filter device cost is higher is asked Topic.

To achieve the above object, the technical solution adopted in the utility model is：One kind is provided for filtering lithium ion slurry Filter device, the hollow cylinder including both ends open is connected to the end of the hollow cylinder and is closed the end and open Mouthful door and be wrapped on the hollow cylinder outer wall and the filter assemblies between two doors；It is described hollow Multiple through-holes of its inside of connection are offered on the outer wall of cylinder, are entered wherein being formed on a door for lithium ion slurry Interface inside the hollow cylinder, the interface are connected with the inside of the hollow cylinder.

Further, the filter assemblies include polypropylene screen, polyethylene strainer, non-woven fabrics and polytetrafluoroethylene (PTFE) screen cloth In it is one or more.

Further, the filter assemblies are bonded and are formed by the non-woven fabrics and the polytetrafluoroethylene (PTFE) screen cloth.

Further, at least one door is hollow setting, and venthole, the venthole are formed on the door It is connected with the inside of the door.

Further, the door with the interface is hollow setting, has shape on the door of the interface Into there is venthole, the venthole is connected with the inside of the door.

Further, the face area being connect with the hollow cylinder of the door is more than the filter assemblies in axial direction On cross-sectional area.

Further, the area for the end face that the door is connect with the hollow cylinder is equal to the filter assemblies in axial direction On cross section area.

Further, the through-hole is circular hole.

Further, the door is discoid.

The advantageous effect of filter device provided by the utility model for filtering lithium ion slurry is：With the prior art It compares, the utility model is used to filter the filtering dress that the filter device of lithium ion slurry is formed using hollow cylinder and filter assemblies It puts, filter assemblies are by polypropylene screen, polyethylene strainer, non-woven fabrics and this kind of nonmetallic filter screen group of polytetrafluoroethylene (PTFE) screen cloth Into avoiding secondary pollution of the metal filter screen to lithium ion slurry；Meanwhile filter assemblies are wrapped on hollow cylinder outer wall, The filter apparatus configuration is simple, and the installation and removal of filter assemblies are all very convenient, at low cost and good filtration effect.

Description of the drawings

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing is briefly described needed in description, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with Other attached drawings are obtained according to these attached drawings.

Fig. 1 is the dismounting filter assemblies for being used to filter the filter device of lithium ion slurry that the utility model embodiment provides Side view afterwards；

Fig. 2 is the sectional view for being used to filter the filter device of lithium ion slurry that the utility model embodiment provides.

Wherein, each reference numeral in figure：

1- hollow cylinders；11- through-holes；2- doors；21- interfaces；22- ventholes；3- filter assemblies.

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and advantageous effect is more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention is further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another On one element or it is connected on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.

It please refers to Fig.1 and Fig. 2, is now said to provided by the utility model for filtering the filter device of lithium ion slurry It is bright.For filtering the filter device of lithium ion slurry, the hollow cylinder 1 including both ends open is connected to hollow cylinder 1 End is simultaneously closed the open-ended door 2 and is wrapped in the filtering on 1 outer wall of hollow cylinder and between two doors 2 Component 3；Connection its internal multiple through-hole 11 are offered on the outer wall of hollow cylinder 1, wherein be formed on a door 2 for lithium from Sub- slurry enters the interface 21 inside hollow cylinder 1, and interface 21 is connected with the inside of hollow cylinder 1.In filter process, lithium ion Slurry enters by interface 21 in hollow cylinder 1, then passes through filtering group by the through-hole 11 on hollow cylinder 1 under pipeline pressure Part 3, so as to fulfill the filtering of lithium ion slurry.

The filter device provided by the utility model for being used to filter lithium ion slurry, compared with prior art, this practicality is new Type is used to filter the filter device that the filter device of lithium ion slurry is formed using hollow cylinder 1 and filter assemblies 3, filter assemblies 3 are made of nonmetallic filter screen, avoid secondary pollution of the metal filter screen to lithium ion slurry；Meanwhile filter assemblies 3 wrap up On the outer wall of hollow cylinder 1, the filter apparatus configuration is simple, and the installation and removal of filter assemblies 3 are all very convenient, at low cost And good filtration effect.

Further, it please refers to Fig.1 and Fig. 2, as provided by the utility model for filtering the filtering of lithium ion slurry A kind of specific embodiment of device, filter assemblies 3 include polypropylene screen, polyethylene strainer, non-woven fabrics and polytetrafluoroethylene (PTFE) It is one or more in screen cloth.The filter assemblies 3 formed using aforementioned a variety of nonmetallic screen packs are at low cost, service life It is long, it is often more important that nonmetallic filter screen property is stablized, the slurry corrosion of resistance to lithium ion, will not be generated after long-time use metal from Son, therefore secondary pollution will not be caused to lithium ion slurry.

Preferably, filter assemblies 3 are bonded and are formed by non-woven fabrics and polytetrafluoroethylene (PTFE) screen cloth, multiple non-woven fabrics and multiple poly- four Vinyl fluoride screen cloth, which is wrapped in outside hollow cylinder 1, forms filter assemblies 3.It can be by changing non-woven fabrics and polytetrafluoroethylene (PTFE) screen cloth The number of plies and the size of mesh obtain the filter assemblies 3 of different filter effects.

Further, it please refers to Fig.1 and Fig. 2, as provided by the utility model for filtering the filtering of lithium ion slurry A kind of specific embodiment of device, at least one door 2 are hollow setting, and ought covering for hollow setting is formed with venthole 22, venthole 22 is connected with the middle vacancy inside door 2.During lithium ion slurries filtration, venthole 22 can drain Air in the lithium ion slurry of part promotes the quality of lithium ion slurry, while when lithium ion slurry pressure is excessive, venthole 22 can play the role of pressure release, so as to protect filter device.

Preferably, the door 2 with interface 21 for hollow setting and is formed with venthole 22, and venthole 22 is with having interface The hollow inside of 21 door 2 is connected.Lithium ion slurry enters from the door 2 for having interface 21, so door 2 is maximum for pressure Door, this door 2 is arranged to hollow and offers venthole 22, is conducive to the pressure release of filter device.

Further, it please refers to Fig.1 and Fig. 2, as provided by the utility model for filtering the filtering of lithium ion slurry A kind of specific embodiment of device, the face area being connect with hollow cylinder 1 of door 2 are more than or equal to filter assemblies 3 Cross-sectional area in the axial direction.Specifically, filter assemblies 3 and the end that door 2 contacts by melt after heating and with door 2 End face be bonded together, the end face of door 2 can play the role of support to filter assemblies 3.

Further, it please refers to Fig.1 and Fig. 2, as provided by the utility model for filtering the filtering of lithium ion slurry A kind of specific embodiment of device, the through-hole 11 opened up on hollow cylinder 1 are circular hole, and circular hole can reduce lithium to the maximum extent The friction of ion slurry and hollow cylinder 1；Certain through-hole 11 can also be the hole of square hole or other shapes.

Further, it please refers to Fig.1 and Fig. 2, as provided by the utility model for filtering the filtering of lithium ion slurry A kind of specific embodiment of device, door 2 is discoid, since the end of filter assemblies 3 in the axial direction is circle, therefore will gear Lid 2 is set as discoid, on the one hand for being adapted with filter assemblies 3, on the other hand could be used that minimum material obtains most Big bearing area, so as to save cost.

The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality All any modification, equivalent and improvement made within novel spirit and principle etc., should be included in the guarantor of the utility model Within the scope of shield.

Claims (9)

1. a kind of filter device for being used to filter lithium ion slurry, which is characterized in that the hollow cylinder including both ends open, difference It is connected to the end of the hollow cylinder and is closed open-ended two doors and is wrapped in the hollow cylinder outer wall Filter assemblies upper and between two doors；It is offered on the outer wall of the hollow cylinder and is respectively communicated with its inside Multiple through-holes, wherein be formed on a door for lithium ion slurry into the interface inside the hollow cylinder, it is described to connect Mouth is connected with the inside of the hollow cylinder.

2. the filter device as described in claim 1 for being used to filter lithium ion slurry, it is characterised in that：The filter assemblies packet It includes one or more in polypropylene screen, polyethylene strainer, non-woven fabrics and polytetrafluoroethylene (PTFE) screen cloth.

3. the filter device as claimed in claim 2 for being used to filter lithium ion slurry, it is characterised in that：The filter assemblies by The non-woven fabrics and the polytetrafluoroethylene (PTFE) screen cloth are bonded to be formed.

4. the filter device as described in claim 1 for being used to filter lithium ion slurry, it is characterised in that：At least one gear It covers as hollow setting, is formed with venthole on the door, the venthole is connected with the inside of the door.

5. the filter device as described in claim 1 for being used to filter lithium ion slurry, it is characterised in that：With the interface The door is hollow setting, and venthole, the venthole and the door are formed on the door with the interface Inside connection.

6. the filter device as described in claim 1 for being used to filter lithium ion slurry, it is characterised in that：The door with institute The face area for stating hollow cylinder connection is more than the cross-sectional area of the filter assemblies in the axial direction.

7. the filter device as described in claim 1 for being used to filter lithium ion slurry, it is characterised in that：The door with it is described The area of cross section of the area of the end face of hollow cylinder connection with the filter assemblies in the axial direction is identical.

8. the filter device as described in claim 1 for being used to filter lithium ion slurry, it is characterised in that：The through-hole is circle Hole.

9. the filter device as described in claim 1 for being used to filter lithium ion slurry, it is characterised in that：The door is disk Shape.