KR20110105317A - Impurities remove device having function of automatic filter cleaning - Google Patents

Impurities remove device having function of automatic filter cleaning Download PDF

Info

Publication number
KR20110105317A
KR20110105317A KR1020100038254A KR20100038254A KR20110105317A KR 20110105317 A KR20110105317 A KR 20110105317A KR 1020100038254 A KR1020100038254 A KR 1020100038254A KR 20100038254 A KR20100038254 A KR 20100038254A KR 20110105317 A KR20110105317 A KR 20110105317A
Authority
KR
South Korea
Prior art keywords
filter
filter member
wall
fluid
foreign matter
Prior art date
Application number
KR1020100038254A
Other languages
Korean (ko)
Inventor
손철호
Original Assignee
(주)동진텍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)동진텍 filed Critical (주)동진텍
Publication of KR20110105317A publication Critical patent/KR20110105317A/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13Supported filter elements
    • B01D29/15Supported filter elements arranged for inward flow filtration
    • B01D29/21Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/606Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/66Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/68Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/76Handling the filter cake in the filter for purposes other than for regenerating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/08Regeneration of the filter
    • B01D2201/081Regeneration of the filter using nozzles or suction devices

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The present invention relates to a debris removal device having an automatic filter cleaning function, the configuration of which has a space therein, a housing having an inlet and an outlet, and an inlet pressure sensor for measuring the pressure of the fluid supplied to the inlet of the housing. And, an internal pressure sensor for measuring the pressure of the fluid inside the housing, and a plurality of fluid passing holes embedded in the housing, through which the fluid supplied from the inlet passes, and provided in a circular shape. A disc table formed at a position spaced horizontally from the through hole and provided with a drain hole for transferring foreign matter to the outside of the housing, and disposed on the disc table and positioned above the fluid passage hole, respectively, A filter member for removing foreign substances contained in the fluid, a motor for rotating the disc table by a predetermined angle, A push member for moving the filter member located above the base plate to a position where the drain hole is located, and returning the moved filter member to its original position, and the drain hole being moved by the push member. When the difference between the foreign matter removal nozzle for injecting fluid to remove the foreign matter contained in the filter member located above the place and the pressure value provided by the inlet pressure sensor and the internal pressure sensor exceeds the set value, the motor Rotate the filter member to operate the push member for moving the filter member at a specific position, and fluid through the foreign matter removal nozzle to the filter member moved above the position where the drain hole is located. Spray to remove the foreign matter contained in the filter member, and the filter member from which the foreign matter is removed again And a control unit for returning the original member by returning to the original position, and rotating the disc table again so that another adjacent filter member is brought to a specific position, and then repeatedly removing the foreign substances contained in the filter member. It is characterized in that, it is possible to automatically wash the filter as needed, and to arrange the mutually opposite filter members along the circumferential direction, but the filter element is arranged to be composed of three layers of small foreign matters Large area can be realized by forming a lot of surface to remove the material, which can realize the miniaturization of foreign substance removal device, and fine mesh can be removed by adjusting the mesh, and it can be designed up to 5 micrometer (㎛) according to the design. As water molecules cannot pass through it, it also removes moisture contained in oil. It can work.

Description

Impurities remove device having function of automatic filter cleaning}

The present invention relates to a debris removal device having an automatic filter cleaning function, and more particularly, it is possible to automatically wash the filter member as needed, and to realize a small and large area, it is possible to design a compact filter member and its mesh. The present invention relates to a debris removal device having an automatic filter cleaning function that can remove water contained in oil by adjusting the filter.

In general, foreign material removal apparatus is widely used in various industrial sites.

In particular, in ships, the use of debris removal devices for long periods of time is enormous. The foreign matter removal device used in ships is variously used, such as a device for removing water or foreign matter contained in oil (oil) and a device for removing foreign matter contained in water for drinking water.

Among these, in the case of a foreign material removal device used to remove water or foreign substances contained in the oil of the ship, it must be able to remove even fine impurities, there was a problem that the size of the filter member. That is, because the filter member provided with a plurality of layers should be superimposed to remove the foreign matter, the size is inevitably large.

Therefore, the existing foreign matter removal apparatus has a problem that the overall size of the device is complicated and large, it is difficult to miniaturize the design of the device.

Therefore, it is urgent to develop a filter member capable of miniaturizing the foreign matter removing device by implementing a large area in the design of the foreign matter removing device.

In addition, the existing foreign matter removal apparatus has no function of automatically cleaning the filter member, there is a hassle that the operator has to manually wash the filter member manually.

The present invention has been proposed in order to solve the above-mentioned problems, the object of which is to automatically wash the filter as needed, and to arrange the mutually opposite filter along the plurality of circumferential direction It is made up of three layers to form a large area by removing many foreign matters in a small size, so that the large area can be realized, and miniaturization of the foreign matter removing device can be realized, and fine meshes can be removed by adjusting the mesh. According to the design, it is possible to design up to 5 micrometers (㎛), so that the water molecules do not pass through it is to provide a debris removal device having a filter automatic cleaning function to remove the water contained in the oil.

In order to achieve the above object, the apparatus for removing foreign matters having an automatic filter cleaning function according to the present invention includes a housing having a space therein, an inlet and an outlet, and a pressure of a fluid supplied to an inlet of the housing. An inlet pressure sensor, an inner pressure sensor for measuring the pressure of the fluid inside the housing, and a plurality of fluid passing holes that are built in the housing and through which the fluid supplied from the inlet passes, and is provided in a circular shape. A disc table formed at a position spaced horizontally from one fluid through hole and provided with a drain hole for transporting foreign substances to the outside of the housing, and disposed on the disc table, respectively positioned above the fluid through hole. Filter member for removing the foreign matter contained in the fluid passing through, and rotate the disc table by a predetermined angle The key is moved by a motor, a push member for moving the filter member located above the disc table to a position where the drain hole is located, and returning the moved filter member to its original position, and the push member. The difference between the foreign material removal nozzle for injecting a fluid and the pressure value provided by the inlet pressure sensor and the internal pressure sensor to remove the foreign matter contained in the filter member located above the drain hole is greater than the set value. If exceeded, operate the motor to rotate the filter member, operate the push member for moving the filter member at a specific position, and remove the foreign matter from the filter member moved above the drain hole. Injecting a fluid through the injection nozzle to remove foreign substances contained in the filter member, the foreign material is removed The rotor member is pushed back to the original position by operating the push member, and the disc table is rotated again so that another adjacent filter member is in a specific position, and the above-described process is repeated to remove foreign substances contained in the filter member in sequence. It characterized in that it comprises a control unit.

In addition, the filter member of the foreign matter removal device having an automatic filter cleaning function according to the present invention, the fluid can pass through, the first wall enclosed in a circle, the fluid can pass, larger than the first wall A second wall having a diameter and enclosed in a circle, a third wall surrounded by a circle having a larger diameter than the second wall and encircled by the first wall, and an inner space surrounded by the first wall, The filter comprises: a first filter focusing body including a plurality of first right plates and a first left plate facing the first right plate and a plurality of first filter plates arranged in a circumferential direction along an inner space surrounded by the first wall; Located in the interior space existing between the first wall and the second wall, and comprises a filter for filtering foreign matter, the filter is a second left side plate and the second left side plate facing the second right side plate is the first Wall and It is composed of a second filter focusing body disposed in a plurality of circumferential direction along the inner space existing between the second wall and the filter located in the inner space existing between the second wall and the third wall, and filters the foreign matter, The filter includes a third filter assembly including a third right plate and a plurality of third left plates opposed to the third right plate in a circumferential direction along an inner space between the second and third walls. It is characterized by.

According to the present invention, the foreign matter removal device having the filter automatic cleaning function can automatically wash the filter member as needed, and arrange the filter members facing each other along a plurality of circumferential directions. By forming a layer, it is possible to realize a large area by forming a lot of surfaces that can remove foreign matters in a small size, and to realize a miniaturization of the foreign matter removing device, and to adjust the mesh to remove fine impurities. Therefore, it is possible to design up to 5 micrometers (㎛), so that the water molecules do not pass, there is an effect that can remove the moisture contained in the oil.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

1 is a view showing the external appearance of the foreign matter removing apparatus having an automatic filter cleaning function according to an embodiment of the present invention.
FIG. 2 is a view for explaining a disc table portion of a foreign matter removing device having an automatic filter cleaning function shown in FIG. 1; FIG.
Figure 3 is a view showing the inside of the filter member used in the foreign matter removal apparatus having an automatic filter cleaning function shown in FIG.

Hereinafter, a foreign material removal apparatus having an automatic filter cleaning function according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 illustrate an apparatus for removing foreign substances having an automatic filter cleaning function according to an embodiment of the present invention, and FIG. 1 illustrates an appearance of an apparatus for removing foreign substances having an automatic filter cleaning function according to an embodiment of the present invention. 2 is a view for explaining the disc table portion of the foreign matter removing device having an automatic filter cleaning function shown in FIG. 1, and FIG. 3 is used in a foreign material removing apparatus having an automatic filter cleaning function shown in FIG. Each of the drawings showing the internal appearance of the filter member is shown.

As shown in the figure, the foreign material removing apparatus 100 having an automatic filter cleaning function according to an embodiment of the present invention, the housing 10, the inlet pressure sensor 20, the internal pressure sensor 30, The disc table 40, the filter member 50, the motor 60, the push member 70, the foreign substance removal injection nozzle 80, and the control part 90 are included.

The housing 10 has a space therein and has an inlet 12 and an outlet 14.

The inlet pressure sensor 20 measures the pressure of the fluid supplied to the inlet of the housing 10.

The internal pressure sensor 30 measures the pressure of the fluid inside the housing 10.

The disc table 40 is embedded in the housing 10 and has a plurality of fluid passage holes 42 through which the fluid supplied from the inlet 12 passes, and is provided in a circular shape, and any one of the fluid passages is provided. It is formed at a position spaced apart from the ball 42 in the horizontal direction and is provided with a drain hole 44 for transferring foreign matter to the outside of the housing (10).

The filter member 50 is disposed on the disc table 40 and positioned above the fluid passage hole 42 to remove foreign substances contained in the fluid that passes.

The filter member 50 has a detailed configuration as follows.

The filter member 50 includes a first wall 210, a second wall 220, a third wall 230, a first filter cluster 240, a second filter cluster 250, And a third filter concentrator 260.

Fluid may pass through the first wall 210 and may be enclosed in a circle.

The second wall 220 may pass through the fluid, and has a larger diameter than the first wall 210 and is surrounded by a circle.

Fluid may pass through the third wall 230 and has a larger diameter than the second wall 220 and is surrounded by a circle.

The first filter concentrator 240 is located in an inner space surrounded by the first wall 210 and consists of a filter for filtering foreign substances, wherein the filter comprises a first right side plate 242 and the first right side plate. A plurality of first left side plates 242 opposite to 242 may be arranged in a circumferential direction along an inner space surrounded by the first wall 210.

The second filter concentrator 250 is located in an internal space existing between the first wall 210 and the second wall 220 and is composed of a filter for filtering foreign substances, wherein the filter is a second right side plate. 252 and a plurality of second left plates 252 opposed to the second right plate 252 are arranged in a circumferential direction along an inner space existing between the first wall 210 and the second wall 220. It has a structure.

The third filter concentrator 260 is located in the internal space existing between the second wall 220 and the third wall 230, and consists of a filter for filtering foreign substances, wherein the filter is a third right plate 262 and a plurality of third left plates 262 facing the third right plate 262 are arranged in a circumferential direction along an inner space existing between the second wall 220 and the third wall 230. It has a structure.

The motor 60 rotates the disc table 40 by a predetermined angle.

The push member 70 moves the filter member 50 located above the disc table 40 to a position where the drain hole 44 is located, and moves the moved filter member 50 back to its original position. Return to.

The foreign substance removal injection nozzle 80 is moved by the push member 70 to inject a fluid to remove the foreign substances contained in the filter member 50 located above the position where the drain hole 44 is located. It is.

The controller 90 operates the motor 60 when the difference between the pressure values provided by the inlet pressure sensor 20 and the internal pressure sensor 30 exceeds the set value, thereby operating the disc table 40 and the filter. The filter member 50 which rotates the member 50, operates the push member 70 which moves the filter member 50 in a specific position, and was moved above the position where the drain hole 44 is located. Spray the fluid through the foreign matter removal injection nozzle (80) to remove the foreign matter contained in the filter member (50), and operate the push member (70) again to remove the foreign matter from the filter member (50). Return to the original position, and again rotate the disc table 40 so that the other adjacent filter member 50 is in a specific position and then repeat the above process to remove the foreign matter contained in the filter member 50 in sequence To control.

The foreign material removing apparatus 100 having an automatic filter cleaning function according to an embodiment of the present invention having the above configuration is used as follows.

First, the fluid, such as oil, that requires filtering in the foreign substance removing device 100 having the automatic filter cleaning function passes through the fluid passage hole 42 through the inlet 12 of the housing 10.

Accordingly, the fluid such as the oil starts from the first filter cluster 240 in the first wall 210 of the filter member 50, and then the second filter cluster 250 and the third filter cluster 260. The foreign matter is removed by passing through).

If the difference between the pressure values provided by the inlet pressure sensor 20 and the internal pressure sensor 30 exceeds the preset value while removing foreign substances of fluid such as oil, the control signal of the controller 90 The motor 60 is operated accordingly.

Accordingly, when the disc table 40 and the filter member 50 are rotated, and the filter member 50 is at a specific position, the push member 70 for moving the filter member 50 includes the control unit ( 90, the filter member 50 is moved up to where the drain hole 44 is located.

Subsequently, the foreign matter contained in the filter member 50 is removed by controlling the fluid to be injected through the foreign substance removing injection nozzle 80 to the filter member 50 having the position moved.

Subsequently, the filter member 50 from which foreign substances have been removed is returned to its original position again by the operation of the push member 70, and again another adjacent filter member 50 is rotated again by the rotation of the disc table 40. It comes to the specific position mentioned above.

Subsequently, the above-described process is repeated to remove foreign substances contained in the filter member 50 sequentially.

In addition, the filter member 50 according to an embodiment of the present invention a plurality of filters facing each other

By arranging along the circumferential direction, the filter is arranged in three layers to form a large surface for removing foreign matters in a small size, thereby realizing a large area, thereby miniaturizing the foreign matter removing apparatus.

In addition, it is possible to remove fine impurities by adjusting the mesh of the filter used, and can be designed up to 5 micrometers (㎛) according to the design can not remove the water contained in the oil because the water molecules do not pass.

Meanwhile, in the present embodiment, the mesh unit of the second filter assembly 250 is higher than that of the first filter assembly 240, and the third filter assembly (than the second filter assembly 250). Since the mesh unit of 260 is higher, the mesh unit gradually increases from the first filter cluster 240 to the third filter cluster 260.

That is, as the first filter focusing body 240 gradually passes from the first filter focusing body 240 to the third filter focusing body 260, the through hole thereof is formed to be smaller. Therefore, the foreign matter is gradually filtered foreign matter of small diameter unit, the flow rate of the fluid (oil) is faster when passing through the filter assembly of the high mesh unit.

In the preferred embodiment of the present invention, the first filter focusing unit 240 has a mesh unit of 100 to 500 mesh, and the second filter focusing unit 250 has a mesh unit of 501 to 700 mesh. The third filter concentrator 260 preferably has a mesh unit of 701 to 1000 mesh.

10. Housing 20. Inlet pressure sensor
30. Internal pressure sensor 40. Disc table
50. Filter member 60. Motor
70. Push member 80. Foreign substance removal spray nozzle
90. Controls
210. The First Wall 220. The Second Wall
230. Third wall 240. First filter assembly
242. First right side plate 244. First left side plate
250. Second filter assembly 252. Second right plate
254. Second left plate 260. Third filter concentrator
262. Third right side plate 264. Third left side plate

Claims (4)

A housing having a space therein and having an inlet and an outlet;
An inlet pressure sensor measuring a pressure of a fluid supplied to an inlet of the housing;
An internal pressure sensor measuring a pressure of a fluid in the housing;
It is built in the housing, and has a plurality of fluid passage holes through which the fluid supplied from the inlet passes, and are provided in a circular shape, and are formed at a position horizontally spaced from the one of the fluid passage holes and foreign matters to the outside of the housing. A disc table having a drain hole for transferring;
A filter member disposed on the disc table and positioned above the fluid passage hole to remove foreign substances contained in the fluid passing through the disc table;
A motor for rotating the disc table by a predetermined angle;
A push member for moving the filter member located above the disc table to a position where the drain hole is located, and returning the moved filter member to its original position;
A foreign substance removal nozzle which is moved by the push member and injects a fluid to remove foreign substances contained in the filter member positioned above the drain hole; And
When the difference between the pressure value provided by the inlet pressure sensor and the internal pressure sensor exceeds the set value, by operating the motor to rotate the filter member, to operate the push member for moving the filter member at a specific position, Injecting a fluid through the foreign substance removal injection nozzle to the filter member moved above the position where the drain hole is located to remove foreign substances contained in the filter member, and pushes the filter member from which the foreign substances have been removed. And a control unit for returning to the original position by rotating the disc table again so that another adjacent filter member is brought to a specific position, and then repeatedly removing the foreign substances contained in the filter member by repeating the above-described process. The foreign matter removal device having a filter automatic cleaning function.
The method of claim 1, wherein the filter member,
A first wall through which the fluid can pass and surrounded by a circle;
A second wall through which the fluid can pass, the second wall having a larger diameter than the first wall and surrounded by a circle;
A third wall through which fluid can pass, the third wall having a larger diameter than the second wall and surrounded by a circle;
Located in the inner space surrounded by the first wall, and comprises a filter member for filtering foreign matter, wherein the filter member is a first left plate and the first left plate facing the first right plate is surrounded by the first wall A first filter focusing body disposed in a circumferential direction along a space;
It is located in the interior space existing between the first wall and the second wall, and consists of a filter member for filtering foreign matter, the filter member is a second left side plate and the second left side plate facing the second right side plate A second filter focusing body arranged in a circumferential direction along an internal space existing between the first wall and the second wall; And
It is located in the interior space existing between the second wall and the third wall, and consists of a filter member for filtering foreign matters, wherein the filter member is a third right side plate and a third left side plate facing the third right side plate; And a third filter focusing body disposed in a plurality of circumferential directions along an inner space existing between the second wall and the third wall.
The method of claim 2,
The mesh unit of the second filter cluster is higher than the first filter cluster,
Since the mesh unit of the third filter assembly is higher than the second filter assembly,
An apparatus for removing foreign matters having an automatic filter cleaning function, characterized in that the mesh unit gradually increases from the first filter focusing body to the third filter focusing body.
The method of claim 3, wherein
The first filter cluster has a mesh unit of 100 to 500 mesh,
The second filter focusing body has a mesh unit of 501 to 700 mesh,
The third filter concentrator is a foreign matter removal device having a filter automatic cleaning function, characterized in that the mesh unit is 701 to 1000 mesh.
KR1020100038254A 2010-03-18 2010-04-26 Impurities remove device having function of automatic filter cleaning KR20110105317A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20100024017 2010-03-18
KR1020100024017 2010-03-18

Publications (1)

Publication Number Publication Date
KR20110105317A true KR20110105317A (en) 2011-09-26

Family

ID=44955735

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100038254A KR20110105317A (en) 2010-03-18 2010-04-26 Impurities remove device having function of automatic filter cleaning

Country Status (1)

Country Link
KR (1) KR20110105317A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101425384B1 (en) * 2012-09-14 2014-07-31 (주)암포 Filter system with self cleaning function
KR101977712B1 (en) 2017-11-23 2019-05-14 김순태 Device for discharging foreign material in the oil storage tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101425384B1 (en) * 2012-09-14 2014-07-31 (주)암포 Filter system with self cleaning function
KR101977712B1 (en) 2017-11-23 2019-05-14 김순태 Device for discharging foreign material in the oil storage tank

Similar Documents

Publication Publication Date Title
WO2013111682A1 (en) Filter device
WO2004097901A3 (en) Spin filter system
KR20110105317A (en) Impurities remove device having function of automatic filter cleaning
JP2014036915A (en) Filter element and backwashing type filtration apparatus equipped with the same
JP2013150940A (en) Filter device
JP6608631B2 (en) Filtration device and filter cleaning method for filtration device
CN102029112A (en) Offline cleaning device for monosodium glutamate wastewater polluted reverse osmosis membrane
KR20150118323A (en) Water membrane filter and air clener using the same
KR101272805B1 (en) Filtering disc for disc stacking type filtering apparatus and water treatment equipment with the disc stacking type filtering apparatus
EP2233199A1 (en) Self-cleaning reverse osmosis device
KR101473429B1 (en) Filter assembly for ballast water treatment system
KR20160024602A (en) Strainer and control method thereof
KR102015143B1 (en) Device for Draining Back-washing Fluid and Filter Apparatus
KR20170036978A (en) Membrane module having a good fouling resistance
KR102314147B1 (en) Apparatus for water treatment using fiber filter
KR101227899B1 (en) air cleaner
CN205145758U (en) Filter, vertical rotatory gypsum hydroextractor, gypsum dewatering system
KR102131063B1 (en) Water treatment device with filter cleaning function
KR101568843B1 (en) Backwash pipe for fluid injection and filtering device having it
KR102053401B1 (en) Cassette type filter device
JP2002113387A (en) Apparatus for removing magnetic matter
CN102000512A (en) External pressing type loop-free solid-liquid separation dynamic membrane device
KR20170024624A (en) Fat removing filter and apparatus for purifying waste water using said filter
AU2016240897B2 (en) Pressure-type filtration device
KR102131067B1 (en) Water purification device provided with bypass means

Legal Events

Date Code Title Description
A201 Request for examination
E601 Decision to refuse application