KR20130107907A - A filter element with rotor blades and a filtering device with the same - Google Patents

A filter element with rotor blades and a filtering device with the same Download PDF

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Publication number
KR20130107907A
KR20130107907A KR1020120030084A KR20120030084A KR20130107907A KR 20130107907 A KR20130107907 A KR 20130107907A KR 1020120030084 A KR1020120030084 A KR 1020120030084A KR 20120030084 A KR20120030084 A KR 20120030084A KR 20130107907 A KR20130107907 A KR 20130107907A
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KR
South Korea
Prior art keywords
filter
filter element
cleaning brush
rotary
cleaning
Prior art date
Application number
KR1020120030084A
Other languages
Korean (ko)
Inventor
최하성
장성민
홍상호
장문석
이영우
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(주)광산
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Priority to KR1020120030084A priority Critical patent/KR20130107907A/en
Publication of KR20130107907A publication Critical patent/KR20130107907A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters 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
    • B01D29/13—Supported filter elements
    • B01D29/23—Supported filter elements arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/08—Regeneration of the filter

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

PURPOSE: A filter element which has cleaning brushes driven by rotating blades and a filtering apparatus including the same are provided to prevent foreign materials or contaminants from being settled and accumulated in a filtering net in real time basis. CONSTITUTION: A filter element comprises rotating shafts (120), rotating blades (125) formed on the bottom external diameter part of the rotary shaft and cleaning brushes (130) formed on the outer periphery of the rotary shaft. The upper end of the filter element is closed by an upper rack. The lower part of the filter element is opened by a lower rack in which an inlet hole is penetrated. A filtering net is formed on the outer periphery of the filter element. The both end part of the rotary shaft rotatably unites with the upper and lower rack. Foreign substance adhered to inner side of the filtering net is removed while the rotating blade, the rotary shaft and the cleaning brush are rotated.

Description

Filter element having a cleaning brush driven by a rotary blade and a filtering device comprising the same {A Filter Element with Rotor blades and a Filtering device with the same}

The present invention relates to a filtration device for filtering the incoming raw water to be discharged to the outside, in particular, the upper end is closed, the lower end is opened, the outer peripheral surface washing by rotating the flow of fluid inside the filter element is formed The present invention relates to a filter element and a filtration device including the filter element configured to efficiently remove contaminants attached to the filtering network and to improve the flow of the fluid flowing inside the filter element.

In general, the backwash filter is composed of a chamber separating the raw water and the filtrate around the backwash filter, and the flow path of the fluid sequentially from the raw water to the filtrate becomes the filtration path.

The backwash filter requires a process of washing the foreign matter adhered to the filter body over time and accumulated and contaminated. The backwashing filter flows the fluid in a direction opposite to the filtration path of raw water to shake off the contaminants accumulated in the filter body. The path of is called backwashing path.

There are various kinds of such backwash filters depending on the type of filter, the filtration path, and the configuration of the backwash path. As the simplest structural device of such a backwash filter, a cylindrical filtration member is largely inserted into the filtration tank, one side of the cylindrical filtration member is connected to the outside, and raw water flows in, and the filtration tank is discharged toward the outer circumferential surface of the cylindrical filtration member. A filtering tank, a filtering network connected to a backwashing valve connected to a backwash valve and a washing mechanism capable of selectively cleaning a part of the filtering member by detecting an internal differential pressure of the filtering member discharged to an outlet formed at the filter outlet, And a backwash filter for forming a backwashing path leading to the backwashing pipe inside the filtration member.

There are a wide variety of such backwash filters, and in Applicant's Patent Publication No. 10-2011-0122973, which is incorporated in the present invention, filtration inside a cylindrical filtration member is provided by forming a conical fluid motion auxiliary element on the inner top of the filtration member. Disclosed is a structure of an "isobar pressure strainer type backwash filter" in which the pressure is generated evenly and the wedge-shaped winding is made into a right triangle shape so that the backwash flow flows naturally on the conical inner core.

However, even in the backwash filter having the same structure as the applicant's published patent, the improvement of the backwashing efficiency was limited and it was not a fundamental cure.

Conventionally, any type of backwash filter does not completely remove foreign substances or contaminants that accumulate in the gap between the filter net and the filter body.

Therefore, the development of a filter body structure capable of removing contaminants accumulated on the inside of the filter body in real time and improving the flow of the fluid flowing inside the filter body has been required.

Publication No. 10-2011-0122973 "Isostatic Strainer Type Backwash Filter" (2011.11.14) Patent No. 10-0869903 "Filter member of the rotary strainer strainer" (2008.11.24) Registered Patent No. 10-0919853 "Retainer for Bag Filter with Cone for Retainer" (2009.09.30)

It is an object of the present invention to continuously shake off foreign matters or contaminants that accumulate inside the filter body without using a separate external power source, to prevent seizure, and to quickly and effectively remove them in real time during backwashing.

Another object of the present invention is to distribute the pressure or velocity distribution of the fluid flowing in the upright filter element evenly along its longitudinal direction so that the entire surface of the filter network can be utilized as the filter body and at the same time the fluid flow during the backwash operation To improve the distribution.

In order to achieve the above object, in the present invention, the upper end is closed by the upper fixing unit 101, the lower end is opened by the lower fixing unit through which the inlet hole 102a is formed, and the raw water is introduced, and a filtering network is formed on the outer circumferential surface thereof. In the filter element, the rotary shaft 120 which both ends are rotatably coupled to the upper holder and the lower holder, the rotary blade 125 is formed on the outer diameter of the lower end of the rotary shaft, and formed on the outer peripheral surface of the rotary shaft It is configured to include a cleaning brush 130, the rotary blade, the rotating shaft and the cleaning brush is driven by the rotary blades, characterized in that to remove the foreign matter attached to the inside of the filter network while rotating the cleaning brush We propose a filter element with a cleaning brush.

Here, the cleaning brush is preferably a plurality of synthetic resin fibers are attached to the outer diameter surface of the rotating shaft while rotating in a spiral along the longitudinal direction of the rotating shaft.

At this time, the filter network is configured by stacking a circular wedge-shaped winding in multiple stages, it is preferable that the winding gap between each end is formed narrower than the outer side of the winding.

According to another aspect of the present invention, a plurality of filter elements having a cleaning brush driven by the rotary vane is arranged to be spaced apart in the circumferential direction therein, rotatable through the center of the filter housing Any one of a plurality of filter elements 100 having the rotary blades by the selective cleaning rotary shaft 34, the drive motor 31 driving the selective cleaning rotary shaft, and the selective cleaning rotary shaft. Also shown is a filtration device, characterized in that it comprises a back washing connecting pipe (23) optionally connected with a flow path.

According to the present invention, the rotary blade mounted on the inflow passage of one end of the filter element is naturally rotated in accordance with the flow of the fluid, and accordingly the cleaning brush rotates to shake off the inner side of the filter net so that foreign matters or contaminants are removed from the filter net. The jamming and accumulation can be prevented in real time.

Even if foreign matters or contaminants accumulate in the inner gap of the filter net, there is an advantage that the accumulated foreign matters or contaminants can be removed by the combination of the cleaning brush and the backwashing operation.

In addition, according to the present invention, when the cleaning brush is spiraled, the flow of the fluid flowing while the cleaning brush is rotated is distributed evenly by the opposite side of the inlet, so that the filtration or backwashing is uniformly performed over the entire area of the filter element. There is this.

1 is a side cross-sectional view showing a filtration path by the filtration device of the present invention.
Figure 2 is a side cross-sectional view showing a back washing path by the filtration device of the present invention.
3 is a partially enlarged perspective view of the filtering network of the present invention.
4 is a front view and a plan view of a filter element assembly of the present invention.
Fig. 5 is a front sectional view, a plan view and a bottom view of the filter element of the present invention.
Figure 6 is a perspective perspective view of the filter element of the present invention.
Figure 7 is a schematic diagram showing the fluid flow distribution inside the filter element of the present invention.

Hereinafter, with reference to the accompanying drawings, the configuration and operation principle of the present invention will be described in detail. 1 is a side cross-sectional view showing a filtration path by the filtration device of the present invention, Figure 2 is a side sectional view showing a back washing path by the filtration device of the present invention.

The filtration device 10 of the present invention includes a filtration device housing 11 in which a plurality of hollow cylindrical filter elements 100 are circumferentially spaced therein, and a power source provided at an upper portion of the filtration device housing 11. Power is supplied from the drive motor 31 by passing through the central portion of the in-drive motor 31 and the inlet 12 formed in a tubular body below the filter housing 11 and the filter housing 11. It consists of a selective cleaning rotary shaft 34 which is received and rotated by the selective cleaning rotary shaft 34 and a back washing tube 22 selectively connected to one of a plurality of filter elements 100 by rotating by the selective cleaning rotary shaft 34. .

An upper frame 14 and a lower frame 15 are coupled to the upper and lower ends of the filtration device housing 11, respectively, and an upper end of the selective cleaning rotary shaft 34 is connected to the driving motor 31. Binds to (32).

A discharge port 13 communicating with the inside is formed at one side of the outer circumferential surface of the filtration device housing 11, and each filter element 100 is rotated at an upper end of the backwashing tube 22 by rotation of the selective cleaning rotary shaft 34. ) And optionally a backwash connecting pipe 23 is formed.

In the drawings, reference numeral 33 denotes a position control sensor for controlling the rotational position of the backwash connection pipe 23, and 21 denotes a backwash valve.

The contaminated fluid flows through the inlet 12 and flows from the inside of the filter element 100 inside the filter housing 11 to the outside and passes through the filtering network 110 to be described later, wherein the size is larger than the prescribed filtration grade. Larger foreign substances or contaminants (hereinafter referred to as 'pollutants') are filtered out of the inner side of the filter net and removed from the fluid. The filtered fluid is then discharged through the outlet 13 of the filter housing 11.

The filtration action of the filter increases the contaminants that are filtered through the filter network over time, and as the amount of filtered and accumulated contaminants increases, the filter area of the filter network decreases, so that the pressure between the contaminated side and the filter side is reduced. Generate a car.

When the difference between the pressure values measured at the inside and outside of the filter element 100 and the filtration side reaches a predetermined differential pressure condition, the automatic backwash mode is started by an electronic controller (not shown). It also implements automatic backwashing mode by setting the time by a timer.

Automatic backwashing rotates the rotary shaft 34 for selective cleaning by a drive motor 31, which is an electrically driven geared motor, and each filter element mounted on the lower frame 15 by a position control sensor 33. It is made by sequentially placing the backwash connecting pipe 23 in the position directly below (100).

When the backwash connecting pipe 23 is positioned below the selected filter element 100 and the flow path is connected, the backwash valve 21 is opened, and the internal pressure and the backwash discharge port 24 of the filter element 100 are opened. Due to the difference in the atmospheric pressure of the fluid flow in the opposite direction to the filtration. At this time, the fluid flows in the opposite direction of the filtration (outside of the filtration net inward) and flows out to the backwash outlet 24 through the backwash pipe together with the contaminants trapped on the inner surface of the filtration net and the like. The surface is cleaned.

When the cleaning is completed, the backwash valve 21 is closed and the backwash connection pipe 23 is moved to the next filter element 100, and the sequential backwash is performed in the circumferential direction. In this way, the cleaning proceeds continuously, and when the cleaning of all the filter elements 100 is completed, the automatic backwashing operation ends.

3 is a partially enlarged perspective view of the filtering net of the present invention, wherein the filtering net 110 forms an outer circumferential surface of the filter element 100 and is preferably formed to have a cylindrical shape as a whole.

In the exemplary embodiment of the present invention, the wedge-shaped winding 111 having a triangular cross section is formed in a circular shape, and then stacked in multiple stages to form the filter network 110. As shown in the filter network 110, a support 112 for contacting the inner or outer surface of the wedge-shaped windings 111 of each stage to maintain a constant gap between the wedge-shaped windings 111 of each stage, as shown. To be fixed.

Figure 3 (a) shows the filtration path, Figure 3 (b) shows the backwash path. As shown in the figure, the vertex of the cross-sectional triangle of the wedge-shaped winding 111 faces outward and the bottom faces inward so that the inner gap 111a is smaller than the outer gap 111b.

4 is a front view and a plan view of the filter element assembly of the present invention, and FIG. 5 is a front sectional view, a plan view and a bottom view of the filter element of the present invention.

In the case of the filter net 110 consisting of the wedge-shaped winding 111 described above, there is an advantage in the filtering and backwashing action of the contaminated water flowing from the inside to the outside, but fundamentally removes the contaminants accumulated in the inside of the filtering net. There was a limit. Therefore, the present invention provides a filter element 100 structure incorporating a rotating cleaning brush 130.

As shown in the filter apparatus housing 11 of the present invention, a plurality of filter elements 100 are arranged in the circumferential direction when the filter plate 100 maintains a predetermined distance by the support plate 16.

The upper end of the filter element 100 is closed by the upper holder 101, and the lower end is formed such that the flow path is opened by the lower holder 102 in which the inlet hole 102 is formed.

A fastener 103 having a thread formed on an outer circumferential surface thereof is coupled to the upper end of the upper fixture 101 by a fastening screw 103a, and the fastener 103 is fixed to the cap 17 by a nut 103b. To combine.

The inner shaft of the filter element 100 is rotatably coupled to the rotation shaft 120 in the vertical direction. Specifically, the upper and lower ends of the rotating shaft 120 are rotatably supported by the bearings 104a and 104b installed in the upper holder 101 and the lower holder 102.

The rotary blade 125 is formed on the rotary shaft 120 positioned above the lower holder 102. The shape or attachment position of the rotary blade 125 may be appropriately adjusted or changed according to the speed, flow rate and hydraulic pressure of the fluid.

On the outer circumferential surface of the rotating shaft 120 except for the position where the rotary blade 125 is formed, as shown, a cleaning brush 130 made of synthetic resin fibers or strands is formed. The material of the cleaning brush 130 will not be limited to the material as long as it has a constant elasticity and circular restoring force.

The end of the cleaning brush 130 is formed to a length sufficient to contact the inner surface of the filter net 110 to shake off contaminants.

The cleaning brush 130 is preferably formed so that the fiber yarn strands of the brush rotate while spirally wound along the longitudinal axis direction of the rotation axis 120.

Fig. 6 is a perspective perspective view of the filter element of the present invention, and Fig. 7 is a schematic diagram showing the fluid flow distribution inside the filter element of the present invention.

According to the filter element 100 having the structure described above, clogging of the filtering network 110 can be prevented by implementing a scraper type physical cleaning function using the kinetic energy of the filtration fluid as a power.

That is, as shown, the rotary blade 125 is rotated without the use of a separate power source by the flow of fluid flowing from below the filter element 100, as a result of the washing attached to the rotary shaft 120 As the brush 130 rotates, the inner surface of the filter net 110 is rubbed off by frictional contact.

Since the cleaning brush 130 is continuously rotated while the raw water is introduced or the backwash water is introduced, it is possible to effectively prevent the contaminant particles from being attached to the filter network 110 and fixed.

Figure 7 (a) shows the fluid flow when the filter element 100 of the present invention is applied, (b) shows the fluid flow in the conventional filter element.

As shown in the figure, in the case of a conventional general filter element, the same filtration area is distributed in the longitudinal direction, so that the flow rate decreases from the inlet end of the filter element to the opposite side during filtration, and most of the inflowing fluid is filtered near the inlet end 110. There is a tendency to pass through the part as it is.

However, in the present invention, since the spiral washing brush 130 rotates, the fluid flowing from the lower side is pushed upward by using a screw-shaped motion, thereby helping to form a uniform fluid flow distribution through the entire area of the filtering network 110. Becomes

The same principle applies in the backwash mode. In other words, during backwashing, the rotary blade 125 and the cleaning brush 30 rotate in opposite directions. At this time, the fluid flowing into the contaminating side from the filtration side, which is outside of the filtering network, to the inside, is filtered by the screw lowering action of the washing brush 130. Cleaning of the element 100 is faster and more efficient.

The present invention relates to a filter device for filtering and purifying impurities contained in raw water. According to the present invention, a contaminant attached to an inner surface of a filter net using a washing brush that rotates by a flow of a fluid flowing into a filter element. Particles can be effectively removed, and the fluid flow inside the filter element can be improved. Therefore, it will need to be widely applied to the fluid filtration apparatus of various fields.

10: filtration unit 11: filtration unit housing
12: inlet 13: outlet
14: upper frame 15: lower frame
21: backwash valve 22: backwash pipe
23: backwash connector 24: backwash outlet
31: drive motor 32: actuator
33: position control sensor 34: rotary shaft for selective cleaning
100: filter element 101: upper fixture
102: lower holder 110: filter net
111: wedge winding 111a: inner gap
111b: outer gap 120: axis of rotation
125: rotary blade 130: cleaning brush

Claims (4)

In the filter element that the upper end is closed by the upper fixing unit 101, the lower end is opened by the lower fixing unit through which the inlet hole (102a) is formed, and raw water is introduced,
Rotating shaft 120 that both ends are rotatably coupled to the upper and lower holder, the rotary blade 125 formed on the outer diameter of the lower end of the rotating shaft, and the cleaning brush 130 formed on the outer peripheral surface of the rotating shaft And a filter element having a cleaning brush driven by a rotary blade, wherein the rotary blade, the rotating shaft, and the cleaning brush rotate to remove foreign substances attached to the inside of the filter network by the flow of the incoming fluid. . The method of claim 1,
The cleaning brush is a filter element having a cleaning brush driven by the rotary blades, characterized in that the plurality of synthetic fibers are attached to the outer diameter surface of the rotating shaft while spirally rotating along the longitudinal direction of the rotating shaft. 3. The method according to claim 1 or 2,
The filter net is composed of a multi-stage stack of circular wedge-shaped windings, each of the winding gap between the filter element having a cleaning brush driven by a rotating blade, characterized in that the inner side is formed narrower than the outer side of the winding. A filter device housing (11) having a plurality of filter elements having a cleaning brush driven by the rotary vanes of claim 1 or 2 disposed circumferentially spaced therein, and rotatably mounted through a central portion of the filter housing. The selective cleaning rotary shaft 34, the drive motor 31 for driving the selective cleaning rotary shaft, and the one of the plurality of filter elements 100 having the rotary blades by the selective cleaning rotary shaft Filtration device, characterized in that comprising a back washing connecting pipe (23) connected to the flow path.
KR1020120030084A 2012-03-23 2012-03-23 A filter element with rotor blades and a filtering device with the same KR20130107907A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101406817B1 (en) * 2013-12-06 2014-06-17 삼건세기(주) ballast water filter equipment
CN104722114A (en) * 2013-12-18 2015-06-24 四川高精净化设备有限公司 Wedged filter core cleaning apparatus
KR101616242B1 (en) * 2015-07-23 2016-04-28 김창세 Filtering apparatus
CN106178652A (en) * 2016-08-31 2016-12-07 芜湖铜冠电工有限公司 A kind of mechanical type paint filter
KR101726160B1 (en) * 2016-03-11 2017-04-12 고려엠지주식회사 Impeller for non-motorized auto-cleaning filter device
KR20170138500A (en) * 2015-04-20 2017-12-15 후지 필터 고교 가부시키가이샤 Filtration unit
KR102048894B1 (en) * 2019-02-22 2019-11-26 (주)테스 Apparatus for filtering waste water
US20190388808A1 (en) * 2017-05-23 2019-12-26 Fuji Filter Manufacturing Co., Ltd. Method for operating filtration device
KR102075112B1 (en) 2019-05-27 2020-02-10 주식회사 미드니 Auto back flushing filter system combining centrifugal separation and candle type membrane filtration
KR102085610B1 (en) 2019-07-11 2020-03-09 주식회사 미드니 Water treatment system
CN111957110A (en) * 2020-08-18 2020-11-20 黄志辉 Oil-water separation filter element treatment process
CN112657273A (en) * 2020-12-08 2021-04-16 萍乡宝海锌营养科技有限公司 Production zinc sulfate is with high-efficient belt cleaning device of filter pressing cloth
KR20210085210A (en) * 2019-12-30 2021-07-08 김군수 2-stage filtration device using disk method and fiber
KR102527637B1 (en) 2022-06-17 2023-05-02 (주) 디케이금속 The valve room in which the filtering apparatus is included

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101406817B1 (en) * 2013-12-06 2014-06-17 삼건세기(주) ballast water filter equipment
CN104722114A (en) * 2013-12-18 2015-06-24 四川高精净化设备有限公司 Wedged filter core cleaning apparatus
KR20170138500A (en) * 2015-04-20 2017-12-15 후지 필터 고교 가부시키가이샤 Filtration unit
US11691100B2 (en) 2015-04-20 2023-07-04 Fuji Filter Manufacturing Co., Ltd. Filtration unit
KR101616242B1 (en) * 2015-07-23 2016-04-28 김창세 Filtering apparatus
KR101726160B1 (en) * 2016-03-11 2017-04-12 고려엠지주식회사 Impeller for non-motorized auto-cleaning filter device
CN106178652A (en) * 2016-08-31 2016-12-07 芜湖铜冠电工有限公司 A kind of mechanical type paint filter
KR20200010433A (en) * 2017-05-23 2020-01-30 후지 필터 고교 가부시키가이샤 Operation method of the filtration device
US20190388808A1 (en) * 2017-05-23 2019-12-26 Fuji Filter Manufacturing Co., Ltd. Method for operating filtration device
KR102048894B1 (en) * 2019-02-22 2019-11-26 (주)테스 Apparatus for filtering waste water
KR102075112B1 (en) 2019-05-27 2020-02-10 주식회사 미드니 Auto back flushing filter system combining centrifugal separation and candle type membrane filtration
KR102085610B1 (en) 2019-07-11 2020-03-09 주식회사 미드니 Water treatment system
KR20210085210A (en) * 2019-12-30 2021-07-08 김군수 2-stage filtration device using disk method and fiber
CN111957110A (en) * 2020-08-18 2020-11-20 黄志辉 Oil-water separation filter element treatment process
CN112657273A (en) * 2020-12-08 2021-04-16 萍乡宝海锌营养科技有限公司 Production zinc sulfate is with high-efficient belt cleaning device of filter pressing cloth
KR102527637B1 (en) 2022-06-17 2023-05-02 (주) 디케이금속 The valve room in which the filtering apparatus is included

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