KR102093842B1 - Mesh replaceable powder filter device - Google Patents

Abstract

The present invention relates to a mesh-replaceable powder filter device, wherein a mesh constituting the filter device, which purifies air by sorting NCM powder or filtering foreign materials, can be attached to or detached from a cylindrical body without using any additional tool, and thus can be easily conveniently replaced in a rapid manner. The mesh-replaceable powder filter device comprises: a cylindrical body having a plurality of suction holes arranged thereon; an upper supporting tool and a lower supporting tool, which consist of protruding fixtures outwardly extended from a flange protruding as the same as the cylindrical body, on an outer circumference surface thereof; a key groove recessed to one side of a flange disposed on each of one side and upper and lower parts of the cylindrical body; a mesh which surrounds the outer circumference surface of the flange disposed on the upper and lower parts of the cylindrical body and is accommodated into the key groove while both ends of the mesh are interposed; a fixing key which presses and fixes the both ends of the mesh accommodated in the key groove; an upper gasket and a lower gasket, which are placed on the outer surface of the flange formed on the upper and lower supporting tools; a contact portion which adheres to the upper and lower gaskets on an inner surface of the outer side; and an upper fixture and a lower fixture, which are on the inner circumference surface of the contact portion, and consist of accommodating portions into which the upper and lower ends of the mesh and the upper and lower ends of the fixing key are inserted, respectively.

Description

Mesh mesh replaceable powder filter device

The present invention relates to a mesh network replaceable powder filter device, and more specifically, NCM (nickel, cobalt, manganese) powder required for production of a secondary battery is transported and screened by particle size or by removing foreign substances to purify the air It is related to a mesh network replaceable powder filter device that is configured to be combined and disassembled without a separate tool in the filter device so as to be easily and easily replaced.

In general, the battery is divided into a primary battery that is used once and discarded, and a secondary battery that is used semi-permanently through charging, and the secondary battery is a battery that currently occupies most of the battery market, and is light weight and portable to make a high capacity battery. It is widely used in telephones, laptops, digital cameras, etc.

As the core material of these secondary batteries, the four main materials are the positive electrode material, the negative electrode material, the separator and the electrolyte, which determine the capacity and output of the battery.

Here, in order to increase the energy density of the positive electrode material, the energy density of the positive electrode active material must be increased to the maximum. As a positive electrode active material for producing performance suitable for a battery, Ni (nickel), Mn (manganese), Co (cobalt), etc. can be cited. Nickel is a high-capacity property, and manganese and cobalt play a role in improving safety, so NCM powder is mixed in an appropriate ratio of about 6: 2: 2 to produce a secondary battery.

Patent registration No. 1275260 (name: positive electrode active material for secondary batteries) is disclosed as an example of manufacturing a secondary battery using a positive electrode material as described above.

The NCM powders mixed in this way are screened with a uniform particle size, and then subjected to a filter process during production to mix.

The apparatus necessary for the conventional filter process as described above is as shown in the accompanying drawings, the filter device 20 is mounted inside the filter housing 10 is sealed inside, the filter device 20 is a porous body formed of a hollow The mesh net 30 made of metal is fixed to the outside by welding 40 and is integrally configured.

Therefore, the NCM powder injected into the filter housing 10 passes through the mesh network 30 and is selected through the filter device 20 and then transported and discharged from the filter housing 10 to the outside.

However, by integrating the mesh network with a porous body and welding, in order to filter NCM powders having different mesh sizes or damaged mesh networks during secondary battery production, the entire filter device must be replaced. There was an increasing problem.

The present invention has been devised to solve the above-described problems, and the mesh network configured in the filter device is configured to be detachable to the cylindrical body without a separate tool for screening NCM powder or filtering foreign substances to purify the air. It is to provide a mesh network replaceable powder filter device that can be easily, easily, and quickly replaced.

The present invention is configured as follows to achieve the above object. That is, in the filter device installed inside the filter housing to sort NCM (nickel, cobalt, manganese) powder materials for secondary battery production or to purify the air, it is formed of a hollow tube body, and is formed inside and outside. A cylindrical body having a plurality of suction holes penetrating therethrough, and an inside formed with a hollow, and a flange formed with an outer diameter equal to the outer diameter of the cylindrical body is fixed to the upper and lower portions of the cylindrical body by welding, respectively, on the outer periphery. The upper and lower supports made of the protruding extensions protruding from the furnace, the key grooves concavely penetrating to one side of the cylindrical body, and one side of the flange disposed on the upper and lower portions, and the cylindrical body, the upper and lower portions, respectively. Press the overlapped both ends of the mesh network accommodated in the keyway and the mesh network accommodated in the keyway with the overlapped outer circumference of the flange and the both ends overlapped. The fixing key for fixing, and the upper gasket and the lower gasket seated on the outer surfaces of the flanges formed on the upper and lower supports, and the protruding fixing portions formed on the upper and lower supports pass through and are formed to be hollow. , The outer inner surface is formed of a contact portion in close contact with the upper and lower gaskets, and the inner periphery of the contact portion is formed longer than the flange, and the upper and lower ends of the upper and lower ends of the mesh network and upper and lower ends of the fixing key are respectively inserted. It is characterized by consisting of a lower fastener.

In addition, a stepped installation groove is formed to accommodate the thickness of the cylindrical body at the edge of the inner surface facing the cylindrical body in the upper and lower supports, respectively.

In addition, both ends of the mesh network are constituted by first and second key fixing portions bent and formed in the same shape as the key grooves, so that the first key fixing portions are inserted into the key grooves, and the second key fixing portions overlap the upper surface of the first key fixing portions. After the arrangement, the fixing key is inserted into the key groove, so that the first and second fixing portions and the key groove are closely fixed.

In addition, the cylindrical body is fixed to the inner periphery of the reinforcement, the inside is penetrated, one side is characterized in that the C-type reinforcement is opened to accommodate the outer surface of the keyway.

On the other hand, the filter housing is divided into upper and lower, housing flanges are respectively formed at the ends that are in contact with each other, the upper and lower bodies having an installation space therein, and a housing gasket interposed between the housing flanges to seal the housing. Clamp wax for fixing the housing flange, an injection tube installed to inject NCM powder into the lower portion of the lower body, and extends to one side from the lower body so that the selected NCM powder or purified air is discharged through a filter device. An installed discharge pipe, a lower sealing cap fixed to the front end in communication with the discharge pipe and in close contact with a lower fastener and a lower cap gasket, and formed at a height passing through the upper fastener at the upper surface of the lower sealing cap to secure a male screw at the top A female screw is formed inside so as to be fastened to the shaft and the male screw of the fixed shaft, and the inside is an upper fastener and an upper Characterized in that configured in close contact with the upper cap is in close contact with the gasket.

According to the present invention as described above, by forming a key groove on one side of the cylindrical body constituting the filter device and the upper and lower supports to accommodate both ends of the mesh network by fixing the fixed key by fixing it, the mesh network is fixed by welding. Since it does not, it is possible to easily and easily replace the required mesh network.

That is, it is possible to shorten the working time and reduce the operating cost by selecting the NCM powder size passing through the filter device or replacing the damaged mesh network during secondary battery production.

In addition, by wrapping the cylindrical body and fixed by inserting the top and bottom of the mesh network fixed with a fixing key into the upper and lower fasteners, there is an effect of firmly fixing the mesh network in the cylindrical body.

In addition, the upper and lower supports and the upper and lower fasteners are fitted and fixed without fastening means such as threads, so that the operator can easily and easily replace the mesh network without additional fixing and disassembly tools.

On the other hand, by forming the installation grooves on the inner surfaces of the upper and lower supports, the outer diameters of the cylindrical body and the outer diameters of the upper and lower supports are matched so as not to be stepped, thereby preventing the excitation of the installed mesh network.

Furthermore, by bending both ends of the mesh net with first and second key fixings, it is easy to accommodate the keyway, and it can be pre-cut to supply the mesh net with the length and size of the outer circumference of the cylinder, so even beginners can easily replace it. It has the effect.

Furthermore, by fixing the C-shaped reinforcement inside the cylindrical body, the effect of preventing the cylindrical body from being firmly supported by the mesh network from the inside is prevented from being separated from the mesh network due to the strong suction force to transport the NCM powder. There is.

On the other hand, the filter device mounted inside the filter housing is secured only with the screw of the upper sealing cap and the fixed shaft while seated on the lower sealing cap, thereby enabling quick installation by simplifying the installation work.

In addition, by dividing the filter housing into upper and lower portions, and fixing and dismantling it with a clamp, it is possible to easily disassemble the filter device installed therein to replace the mesh network.

Figure 1 is a conventional mesh network showing a filter device integrated by welding, (a) is a cross-sectional view of the filter device is mounted to the filter housing, (b) is a perspective view showing the welding portion of the filter device
Figure 2 is a cross-sectional view showing a filter device installed in the filter housing according to the present invention
Figure 3 is an exploded perspective view showing a filter device according to the present invention
Figure 4 is a perspective view showing a combined filter device according to the present invention
Figure 5 is an enlarged cross-sectional view showing the main part of the filter device according to the present invention
Figure 6 is a plan view showing the first and second height fixing formed on both ends of the mesh network according to the present invention
7 is an enlarged cross-sectional view showing a main portion of a filter housing in which a filter device according to the present invention is installed.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The filter device 100 of the present invention, as shown in Figures 2 to 6 of the accompanying drawings, the cylindrical body 110, and the cylindrical body 110 is fixed to the upper and lower portions, respectively, the upper and lower supports (120a) ( 120b), a key groove 130 formed on one side of the cylindrical body 110 and the upper and lower supports 120a and 120b, and the cylindrical body 110 and the upper and lower supports 120a and 120b ) Surrounding the mesh network 140, the fixed key 150 for fixing both ends of the mesh net 140 inserted into the key groove 130, and the upper and lower supports 120a, 120b, respectively. The upper and lower gaskets 160a and 160b and the upper and lower gaskets 160a and 160b closely contacting the upper and lower gaskets 160a and 160b while the upper and lower gaskets 120a and 120b are inserted. It consists of.

In addition, the filter device 100 is installed inside the NCM powder 300 that is injected into the inside or the filter housing 200 is configured to filter and clean foreign matter.

Here, the upper and lower supports 120a and 120b, and the upper and lower gaskets 160a and 160b and the upper and lower fasteners 170a and 170b respectively installed on the upper and lower parts of the cylindrical body 110, respectively. Since the same shape is symmetrically arranged in a pair, the following description will be made separately for upper and lower sides for understanding.

The cylindrical body 110 is formed of a cylindrical body having a hollow inside, and a plurality of suction holes 111 are formed in a constant arrangement so that the outside and the inside communicate.

The upper support 120a and the lower support 120b are fixed to the upper and lower portions of the cylindrical body 110 in a symmetrical shape, and the inside is formed in a hollow shape to communicate with the cylindrical body 110. , On the outer periphery, a flange 121 formed to protrude with the same outer diameter as the outer diameter of the cylindrical body 110 is formed, and the outer surface of the flange 121, that is, the upper support 120a corresponds to the upper surface, and the lower support 120b. Is composed of a protruding fixing part 122 formed to a length exposed from the upper and lower fasteners 170a and 170b which will be described later on the surface corresponding to the lower surface.

The upper and lower supports 120a and 120b formed as described above are disposed on the upper and lower parts of the cylindrical body 110 and fixed by welding, thereby forming flanges on the upper and lower supports 120a and 120b. (121) and the outer diameter of the cylindrical body (110) is made in a state in which the mesh net (140) to be described later is in contact with the surface and is configured to be in close contact without lifting.

Here, in the flange 121, the ring-shaped installation groove 123 having a cross-section of “a” in shape so as to be formed as a stepped groove as much as the thickness of the cylindrical body 110 in the interior facing the cylindrical body 110 It is composed.

When the upper and lower portions of the cylindrical body 110 are respectively fitted into the installation groove 123, the outer diameter of the flange 121 can be easily matched, and at the same time, the cylindrical body 110 is caught in the installation groove 123 and is not moved randomly. It is easy to do.

The key groove 130 is that both ends 141 and 142 of the mesh net 140 are inserted and received, and the flange 121 formed on one side and the upper and lower supports 120a and 120b of the cylindrical body 110 is inserted. It is formed concave in a "c" shape to penetrate to one side of the.

The mesh network 140 is to select the NCM powder 300 having different particle sizes to a uniform size or to discharge purified air from which foreign substances generated during production are discharged, and the cylindrical body 110 and the upper and lower support After the outer periphery of (120a) (120b) is wrapped and brought into close contact, both ends 141 and 142 are inserted and accommodated in a state overlapping the key groove 130.

In addition, the mesh net 140 is a mesh net 140 formed of a cut sheet previously cut to a length that can be wrapped around the cylindrical body 110 or wrapped around the cylindrical body 110 after the operator directly cuts it to an appropriate length. It can also be supplied to producers.

Here, both ends 141 and 142 of the mesh network 140 may be configured to be easily inserted into the key groove 130 by being formed in the same shape as the key groove 130 in a “c” shape.

That is, one end 141 of the mesh network 140 is formed of a first key fixing portion 143 bent in a "c" shape, and the other end portion 142 is inserted into the first key fixing portion 143 It is formed of a second key fixing portion 144 bent in a relatively small "c" shape that can be fitted into the key groove 130 in an overlapped state.

Therefore, even if the beginner is working, the mesh network 140 formed by overlapping the first and second key fixing parts 143 and 144 can be easily replaced in the cylindrical body 110 and the upper and lower supports 120a and 120b. In addition, both ends 141 and 142 of the mesh network 140 fitted in a "c" shape are not arbitrarily disengaged by a solid fixing force.

The fixed key 150 is configured to press and fix both ends 141 and 142 of the mesh net 140 inserted into the key groove 130 so as not to be arbitrarily disassembled, and the length of the fixed key 150 is at the top. It is disposed in the key groove 130 formed in the upper support 120a, and the lower end is formed in a length arranged in the key groove 130 formed in the lower support 120b, which will be described later together with the upper and lower ends of the mesh network 140. After the upper and lower fasteners 170a and 170b are received therein, they are constrained and fixed.

The upper gasket 160a is disposed on the upper surface of the flange 121 formed on the upper support 120a, and the lower gasket 160b is disposed on the lower surface of the flange 121 formed on the lower support 120b, thereby improving airtightness. Be as close as possible.

In addition, the upper and lower gaskets (160a) (160b) are formed through the center, after the protrusion fixing portions 122 formed on the upper and lower supports (120a) (120b) respectively pass, each flange 121 ) It is configured to be seated on the upper and lower surfaces respectively.

The upper fastener 170a and the lower fastener 170b are in close contact with the upper gasket 160a and the lower gasket 160b seated on each flange 121, and at the same time, the upper end of the mesh net 140 and the fixed key 150. As being configured to fix the bottom and the bottom, the cross sections of the upper fastener 170a are formed in a “┌┐” shape, and the cross sections of the lower fastener 170b are respectively formed in a symmetrical “└┘” shape.

In addition, the inside of the upper and lower fasteners 170a and 170b is formed to be hollow, and is configured to protrude to the outside through the protruding fasteners 122 formed on the upper and lower supports 120a and 120b, respectively.

In addition, the upper and lower gaskets 160a and 170b are formed in close contact portions 171 in which the upper and lower gaskets 160a and 160b are respectively in close contact with each other.

In addition, the length of the inner periphery on the contact portion 171 is formed of a receiving portion 172 formed relatively longer than the length of the flange 121 formed on the upper and lower supports 120a and 120b, respectively, and the receiving portion ( 172) The upper and lower ends of the mesh net 140 and the upper and lower ends of the fixing key 150 are respectively inserted and constrained and fixed therein.

That is, the mesh body 140 wrapped around the cylindrical body 110 and the upper and lower supporters 120a and 120b has a fixed key after both ends 141 and 142 are inserted into the keyway 130. 150), the upper and lower ends of the mesh network 140 and the fixed key 150, which are not constrained, are fixed by being inserted into the receiving portion 172 formed in the upper and lower fasteners 170a and 170b, thereby mesh mesh ( 140) is fixed in a state of being in close contact with the cylindrical body 110 without fixing means such as welding, so it can be easily detached and replaced easily.

Here, the end of the receiving portion 172 is formed with an inclined tapered surface 173 to enter the mesh network 140 and the fixing key 150 is not caught in the end of the receiving portion 172 bent or damaged smoothly It can be configured to enter.

On the other hand, a plurality of C-shaped reinforcement 180 formed in a "C" shape with one side open so as to be fixed to the inside of the cylindrical body 110 to reinforce.

The open portion of the C-shaped reinforcement 180 is fixed by welding after the outer periphery contacts the inner periphery of the cylindrical body 110 while accommodating the thicknesses of both sides of the key groove 130 therein.

Therefore, when the NCM powder 300 flowing into the filter device 100 flows into the rigid suction force, the cylindrical body 110 is deformed inward by internal pressure, thereby causing the cylindrical body 110 and the mesh network 140 ) This mutual separation occurs, and this separation is a phenomenon in which the NCM powder 300 introduced into the cylindrical body 110 is caught between the mesh net 140 and the cylindrical body 110 and does not flow into the spaced part. C-type reinforcement 180 is configured to solve this problem by preventing deformation of the cylindrical body (110).

The order of combining and disassembling the filter device 100 configured as described above is as follows.

In the order of coupling, the key body 130 of the cylindrical body 110 and the key groove 130 of the upper and lower supports 120a and 120b are provided with a welded cylindrical body 110.

Next, after the cylindrical body 110 and the upper and lower supports 120a and 120b are wrapped with a mesh network 140, the key grooves in a state where both ends 141 and 142 of the mesh network 140 are overlapped. 130).

Thereafter, the both ends 141 and 142 of the mesh net 140 fitted in the key groove 130 are closely adhered with a fixing key 150 to be fixed inside the key groove 130.

Next, the upper and lower gaskets 160a and 160b are seated on the outer surfaces of the flanges 121 formed on the upper and lower supports 120a and 120b, respectively.

Thereafter, the upper and lower ends of the mesh net 140 and the fixing key 150 are inserted and fixed into the upper and lower fasteners 170a and 170b, and the upper and lower gaskets 160a and 160b are brought into close contact with each other. Completed in confidentiality.

Conversely, the dismantling order for replacing the mesh network 140 proceeds in the reverse order of the combining order.

Therefore, the filter device 100 has the effect of performing an easy, simple, and quick replacement operation by combining or disassembling the mesh net 140 by fitting or disassembly in a simple manner, without welding or using a screw thread. This has the effect of reducing the operation and management costs incurred while removing all the filter devices in order to replace the mesh network.

On the other hand, the filter housing 200 is configured to select the NCM powder 300 by mounting the filter device 100 therein, as shown in FIG. 7 of the accompanying drawings, the upper body (with the installation space formed therein) It is divided into 210a) and a lower body 210b, and the housing flanges 211 are formed at ends of the upper and lower bodies 210a and 210b.

In addition, between the housing flanges 211 respectively formed on the upper and lower bodies 210a and 210b, a clamp 211 is configured to be fixed in a state where the housing gasket 211a is interposed to improve airtightness.

In addition, the lower body 210b is provided with an injection pipe 230 into which NCM powder 300 is injected, and is composed of an outlet pipe 240 whose tip is extended from one side to the inside and combined with the filter device 100.

On the other hand, at the distal end of the discharge pipe 240, the lower fastener 170b constituting the filter device 100 and the lower cap gasket 250a are tightly fixed to the edge of the upper surface to improve airtightness, and the lower support 120b The lower seating groove 251 is formed at the upper surface position corresponding to the protruding protrusion fixing part 122, and the lower sealing cap 250 is inserted and seated at the lower end of the protruding fixing part 122 exposed from the lower fixing hole 170b. It is composed.

Therefore, the filter device 100 is inserted into the lower protruding fixing part 122 and the lower seating groove 251 in place, so that it is seated on the lower sealing cap 250 without separate fixing means to form an airtight state. It has an effect.

In addition, a fixed shaft 260 is formed protruding from the upper surface of the lower sealing cap 250 is configured, the upper end of the fixed shaft 260 to the height passing through the upper fixture 170a constituting the filter device 100 A male screw 261 is formed on the outer periphery.

In addition, an upper sealing cap 270 is configured to be closely fixed with the upper cap gasket 270a to improve the airtight condition with the upper fastener 170a, but a fixed shaft 260 is provided on the lower surface of the upper sealing cap 270. A female screw 271 that is fastened to the male screw 261 is formed, and an upper seating groove 272 is formed at a lower surface position corresponding to the protruding fixing part 122 protruding from the upper support 120a, thereby forming an upper fixing hole ( The upper end of the upper protrusion fixing part 122 exposed in 170b) is configured to be inserted and seated in the upper seating groove 272.

The order in which the filter device 100 is coupled to the filter housing 300 configured as described above is as follows.

First, a lower portion of the filter device 100 is seated on the lower cap gasket 250a to form a close contact with the lower sealing cap 250 and the lower portion of the filter device 100, that is, the lower fastener 170b, and at the same time, the discharge pipe ( 240) and the inside of the filter device 100 are arranged to communicate.

At this time, the protruding fixing portion 122 formed on the lower supporting portion 120b and exposed from the lower fixing portion 170b is inserted into the lower seating groove 251 to form an upright position in the fixed position, and the fixed shaft 260 The front end of the filter device 100 penetrates the inside to form a state exposed to the outside.

Next, the upper cap gasket (270a) is seated on the upper surface of the upper fixture (170a) disposed on the filter device 100.

Thereafter, the upper cap gasket 270a is brought into close contact with the upper fastener 170a by tightening the female screw 271 formed on the upper screw cap 270 and the male screw 261 exposed to the outside from the fixed shaft 260. At the same time, the protruding fixing part 122 exposed from the upper fixing hole 170a is inserted into the upper seating groove 272 by the upper sealing cap 270 which descends during the tightening operation, and the filter device 100 is lowered. It is fixed to the sieve 210b.

Next, the filter device is tightened with a clamp 211 in a state in which a housing gasket 211a is provided between the upper body 210a and the lower body 210b to improve airtightness between the housing flanges 211. To complete the installation.

When the NCM powder 300 is injected into the injection tube 230 of the filter housing 200 configured as described above, the NCM powder 300 selected by particle size passes through the mesh network 140 constituting the filter device 100. After that, it is introduced into the interior through the suction hole 11 formed in the cylindrical body 110 is transferred to the outside through the discharge pipe 240.

As described above, the configured filter device 100 can be easily and conveniently fixed and dismantled the mesh network 140 using the fixing key 150 and the upper and lower fasteners 170a and 170b, so it is easy to replace, In addition, when the clamp 220 constituting the filter housing 200 is removed, the upper body 210a is easily disassembled and exposed to the outside, so that the filter device 100 is useful for combining or disassembling the filter housing 200 inside the filter housing 200 It is possible to provide a powder filter device for network replacement.

The present invention is not limited to the above-described embodiments, and can be implemented by variously changing within the range permitted by the technical idea of the present invention.

Filter device: 100 Cylindrical body: 110
Suction hole: 111 Upper side support: 120a
Lower support: 120b Flange: 121
Protrusion fixing part: 122 Installation groove: 123
Keyway: 130 Mesh: 140
One end: 141 The other end: 142
First Heights Government: 143 Second Heights Government: 144
Fixed key: 150 Upper gasket: 160a
Lower gasket: 160b Upper fastener: 170a
Lower fixture: 170b Adhesion: 171
Receptacle: 172 Taper side: 173
C-type reinforcement: 180 Filter housing: 200
Upper body: 210a Lower body: 210b
Housing flange: 211 Housing gas cat: 211a
Clamp: 220 Injection tube: 230
Outlet pipe: 240 Lower sealing cap: 250
Lower cap gasket: 250a Lower seating groove: 251
Fixed shaft: 260 Male thread: 261
Upper sealing cap: 270 Upper cap gasket: 270a
Female thread: 271 Upper seating groove: 272
NCM powder: 300

Claims (5)

In the filter housing (100) installed inside the filter housing (200) to select NCM powder (300) material for secondary battery production or to purify air,
A cylindrical body 110 formed of a hollow tube body and having a plurality of suction holes 111 penetrating outside and inside;
The inside is formed of a hollow, and the outer edge has a flange 121 formed of the same outer diameter as the outer diameter of the cylindrical body 110 is fixed to the upper and lower portions of the cylindrical body 110 by welding, and from the flange 121 to the outside The upper support 120a and the lower support 120b made of the projecting extended projecting part 122;
A key groove 130 that is concavely penetrated to one side of the cylindrical body 110 and one side of the flange 121 disposed on the upper and lower sides, respectively;
A mesh network 140 accommodated in the key groove 130 in a state where both ends 141 and 142 are wrapped so that the outer circumference of the flange 121 disposed on the upper and lower portions of the cylindrical body 110 is closely contacted;
A fixed key 150 for pressing and fixing the overlapped both ends 141 and 142 of the mesh net 140 accommodated in the key groove 130;
Upper and lower gaskets 160a and lower gaskets 160b seated on outer surfaces of the flanges 121 formed on the upper and lower supports 120a and 120b, respectively;
The upper support 120a and the lower support 120b, respectively, are formed to be hollow so that the protruding fixing parts 122 are passed through and exposed to the outside, and the outer inner surfaces are upper and lower gaskets 160a and 160b. A close contact portion 171 that is in close contact is formed, and the inner periphery of the close contact portion 171 is formed relatively longer than the length of the flange 121, so that the upper and lower ends of the mesh net 140 and the upper and lower ends of the fixing key 150 are formed. It is composed of an upper fastener (170a) and a lower fastener (170b) made of each of the receiving portion 172 is inserted,
The mesh body replaceable powder filter device characterized in that the cylindrical body 110 is fixed to the inner periphery and reinforced, but a C-type reinforcement 180 is opened on one side so that the inside is penetrated and the outer surface of the key groove 130 is received .
According to claim 1,
A mesh characterized in that stepped installation grooves (123) are formed to accommodate the thickness of the cylindrical body (110) at the edges of the inner surfaces facing the cylindrical body (110) in the upper and lower supports (120a) (120b). Network replaceable powder filter device.
According to claim 1,
The both ends 141 and 142 of the mesh network 140 are formed to have the same shape as the key grooves 130, respectively, so that one end 141 is formed of the first key fixing part 143, and the other end ( 142) is a mesh network replacement powder filter device, characterized in that it is inserted into the first key fixing portion 143 and is composed of a second key fixing portion 144 that is closely fixed with the fixing key 150 in an overlapped state.
delete According to claim 1,
The filter housing 200 is divided into upper and lower, the housing flange 211 is formed at the ends that are in contact with each other, the upper body 210a and the lower body 210b having an installation space formed therein;
A clamp 220 for fixing the housing flange 211 in a state in which the housing gasket 211a is sealed with the housing flange 211;
An injection pipe 230 installed at the lower portion of the lower body 210b so that the NCM powder 300 is injected inside;
An outlet pipe 240 extending from one side of the lower body 210b to one side and installed to filter NCM powder 300 or purified air selected through the filter device 100;
Is fixed to the front end in a state in communication with the discharge pipe 240, the upper surface is in close contact with the lower fastener (170b) and the lower cap gasket (250a), the protruding fixing portion 122 formed in the lower support (120b) is inserted Lower seating cap 250 is formed with a lower seating groove 251;
A fixing shaft 260 formed at a height passing from the upper surface of the lower sealing cap 250 to the upper fixing hole 170a and having a male screw 261 formed at the upper end;
A female screw 271 is formed on the lower surface to be engaged with the male screw 261 of the fixed shaft 260, and the upper surface is in close contact with the upper fastener 170a and the upper cap gasket 270a, and is formed on the upper support 120a. Mesh network replaceable powder filter device, characterized in that it consists of an upper sealing cap (270) with an upper seating groove (272) into which the protruding fixing part (122) is inserted.

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