KR101349944B1 - Radial filtration filter - Google Patents

Radial filtration filter Download PDF

Info

Publication number
KR101349944B1
KR101349944B1 KR1020130058621A KR20130058621A KR101349944B1 KR 101349944 B1 KR101349944 B1 KR 101349944B1 KR 1020130058621 A KR1020130058621 A KR 1020130058621A KR 20130058621 A KR20130058621 A KR 20130058621A KR 101349944 B1 KR101349944 B1 KR 101349944B1
Authority
KR
South Korea
Prior art keywords
water
filtration
frame
outlet
filter
Prior art date
Application number
KR1020130058621A
Other languages
Korean (ko)
Inventor
이선호
박인호
류충기
박완식
Original Assignee
주식회사삼영이앤티
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 주식회사삼영이앤티 filed Critical 주식회사삼영이앤티
Priority to KR1020130058621A priority Critical patent/KR101349944B1/en
Application granted granted Critical
Publication of KR101349944B1 publication Critical patent/KR101349944B1/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/06Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/35Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The present invention relates to a radial filtration filter installed in a water channel to filter foreign materials from wastewater and having a cylindrical filtration bar with a width decreasing stepwise. To achieve the purpose, the radial filtration filter, which is installed in a water channel to filter foreign materials from wastewater, according to the present invention comprises a frame in the shape of a box installed in the water channel and having an inlet for introducing water and an outlet for discharging water formed at one side thereof; a discharge pipe cylindrically formed in the frame to have one side thereof intercommunicating with the outlet of the frame and the other side thereof closed, rotated by a power device around an axis, and having a plurality of ventholes formed radially on the outer circumference surface thereof; and a filtration bar formed in the shape of a cylinder with a width decreasing stepwise to be screw-coupled to the ventholes of the discharge pipe, having a plurality of inflow holes formed radially on the outer circumference surface of the cylinder, and having a filtration film on the inflow holes. Foreign materials are filtered via the ventholes of the filtration bar from water introduced into the frame while the filtered water is discharged through the discharge pipe to the outlet of the frame. The present invention having the composition reduces filtration time greatly and increases filtration quantity simultaneously because a region introducing water is relatively increased by forming the cylindrical filtration bar radially and the inflow speed of water at the point of being introduced into the filtration bar is increased via Bernoulli's principle by forming the filtration bar in the shape of a cylinder having a width decreasing stepwise.

Description

방사형 여과필터{Radial filtration filter}Radial filtration filter

본 발명은 수로내에 설치되어 오폐수에 이물질을 여과하되, 계단식으로 폭이 좁아지는 원기둥형태의 여과봉을 방사형으로 적용된 여과필터에 관한 것이다.
The present invention relates to a filtration filter radially installed in the cylindrical filter rod is installed in the water channel to filter foreign matter in the waste water, the width of the cascade narrows.

일반적으로 수로내에 유입되는 오폐수를 여과하기 위해 설치되는 디스크필터장치는 도1과 같이 프레임(a) 내부로 물이 유입되면 디스크형태의 여과필터(b)에 이물질이 걸러지면서 드럼(c)을 통해 프레임 외부로 배출되거나 또는 역행하는 구조이다.In general, the disk filter device installed to filter the waste water flowing into the water channel, when the water is introduced into the frame (a) as shown in Figure 1 through the drum (c) while the foreign matter is filtered through the disk-shaped filter (b) It is a structure that is discharged or backed out of the frame.

상기와 같은 종래의 디스크필터장치의 가장 큰 과제는 물의 유입량 및 여과속도가 매우 중요한데 이를 해결하기 위해 종래에는 디스크필터의 크기를 늘리거나 등록특허 10-0700154 같이 여러겹으로 겹치는 등 여과필터의 부피 및 수량을 늘리는 것으로 해결하고 있다.The biggest problem of the conventional disk filter device as described above is that the inflow and filtration speed of the water is very important to solve this problem in the prior art by increasing the size of the disk filter or overlapping multiple layers, such as the volume of the filtration filter. We solve by increasing quantity.

하지만 상기와 같은 종래의 디스크필터장치의 과제를 해결하는 방식은 결국 여과필터의 부피만 늘어나기 때문에 상기 디스크필터장치는 수로의 규모에 따라 한계에 부딪히게 되고, 전체적으로는 단순히 부피만 늘어나는 것이 아니라 그 구성품들 중에는 수량도 늘어나기 때문에 제작비용에 및 자재비용도 그만큼 늘어나는 문제점이 있다.
However, the method for solving the problems of the conventional disk filter device as described above only increases the volume of the filtration filter, so that the disk filter device encounters a limit depending on the size of the channel, and overall, the volume is not merely increased. Among the components, there is a problem that the production cost and the material cost increases because the quantity increases.

본 발명은 상기와 같은 문제점을 해결하기 위해 같은 조건의 수로규모에서 종래의 디스크필터장치와 비교하여 여과되는 물의 유입량 및 여과속도를 극대화시킬 수 있는 여과필터를 제공함의 그 목적이 있다.
It is an object of the present invention to provide a filtration filter capable of maximizing the inflow rate and filtration rate of water to be filtered compared to a conventional disk filter device in the channel size of the same conditions to solve the above problems.

상기와 같은 목적을 달성하기 위한 수단으로 본 발명의 방사형 여과필터는 수로내에 설치되어 오폐수에 이물질을 여과하는 여과필터에 있어서,상기 수로내에 설치되어 일측에 물이 유입되는 유입구와 물이 배출되는 유출구가 형성된 박스형태의 프레임과; 상기 프레임 내부에서 일측이 상기 프레임의 유출구와 연통되며 타측이 밀폐되어 원통 형태로 형성되되, 상기 원통은 동력장치로 인해 축을 중심으로 회동되고, 상기 원통의 외주면에는 다수의 통공이 방사형으로 형성된 유출관과; 계단식으로 폭이 좁아지는 원기둥형태로 형성되어 상기 유출관의 통공에 나사결합되되, 상기 원기둥의 외주면에는 다수의 유입공이 방사형으로 형성되고, 상기 유입공에는 여과막이 형성된 여과봉으로 구성되어, 상기 프레임에 유입된 물이 상기 여과봉의 유입공을 통해 이물질이 걸러지면서 상기 배출관을 통해 상기 프레임의 유출구로 여과된 물이 배출되도록 구성된 것을 특징으로 한다.
Radial filtration filter of the present invention as a means for achieving the above object is provided in the filtration filter for filtering foreign matter to the waste water, installed in the canal, the inlet and water outlet inlet water is introduced into one side A box-shaped frame formed with; Inside the frame, one side is in communication with the outlet of the frame and the other side is sealed to form a cylindrical shape, the cylinder is rotated about the axis due to the power unit, the outer circumferential surface of the cylinder has a plurality of through-flow outlet pipe and; It is formed in a cylindrical shape narrowing stepwise, screwed to the through-hole of the outlet pipe, a plurality of inlet holes are formed radially on the outer circumferential surface of the cylinder, the inlet hole is composed of a filter rod formed with a filtration membrane, the frame The water introduced into the filter is characterized in that configured to discharge the filtered water to the outlet of the frame through the discharge pipe while the foreign material is filtered through the inlet hole.

상기와 같이 구성된 본 발명은, 원기둥형태의 여과봉을 방사형으로 형성함으로써 물이 유입되는 면적이 상대적으로 넓어지고, 상기 여과봉을 계단식으로 폭이 좁아지는 원기둥형태로 형성함으로써 물이 여과봉으로 유입되는 순간 베르누이 효과에 의해 유입속도가 빨라져 여과시간이 대폭 줄어들고 동시에 여과량도 증대되는 효과가 있다.
According to the present invention configured as described above, the water flows into the filter rod by forming a cylindrical filter rod in a radial shape so that the water flows in a relatively wider area, and the filter rod is formed in a cylindrical shape that narrows in a stepwise manner. As soon as the Bernoulli effect, the inflow rate is faster, the filtration time is greatly reduced, and at the same time, the amount of filtration is also increased.

도 1은 종래의 디스크필터장치를 나타내는 사시도
도 2는 본 발명의 조립과정을 나타내는 사시도
도 3은 본 발명의 사시도
도 4는 본 발명에서 물의 유입과정을 알 수 있는 단면도
도 5는 본 발명에서 여과봉의 평면도
도 6은 본 발명에서 여과봉의 또 다른 실시예를 나타내는 평면도
1 is a perspective view showing a conventional disc filter device
Figure 2 is a perspective view showing the assembly process of the present invention
3 is a perspective view of the present invention
4 is a cross-sectional view showing the inflow of water in the present invention
5 is a plan view of the filter rod in the present invention
Figure 6 is a plan view showing another embodiment of the filter rod in the present invention

이하 본 발명에 따른 실시 예를 첨부된 도면에 의거하여 상세하게 설명하면 다음과 같다.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

우선, 본 발명은 오폐수 정화시설의 수로내에 설치되어 수로를 통과하는 물에 포함된 이물질을 여과하기 위한 장치이다.
First, the present invention is a device for filtering foreign matter contained in the water passing through the waterway installed in the waterway of the waste water purification facility.

다음 물이 흘러 통과하는 수로내에 박스형태로 형성된 프레임(10)이 형성되되, 물이 흘러오는 방향으로 물이 유입될 수 있도록 유입구(11)가 형성되고, 상기 유입구(11)의 반대방향으로 물이 배출될 수 있도록 유출구(12)가 형성된다.Next, a frame 10 formed in the form of a box is formed in the channel through which water flows, and an inlet 11 is formed to allow water to flow in a direction in which the water flows, and water in the opposite direction of the inlet 11. The outlet 12 is formed so that it can be discharged.

상기 본 발명에서 프레임(10)의 유입구(11)는 물이 흘러오는 방향으로 전체가 개방된 형태를 가지지만, 사용장소 및 규모와 같이 선택에 따라 상기 유입구(11)의 형태가 바뀔 수도 있지만 프레임(10)의 내부로 물이 유입되는 것은 동일하기 때문에 상관없다.
In the present invention, the inlet 11 of the frame 10 has a form in which the whole is opened in the direction in which water flows, but the shape of the inlet 11 may be changed depending on the selection, such as the use place and scale, but the frame Since water flows into the inside of (10) is the same, it does not matter.

다음 상기 프레임(10) 내부에 유입구(11)에서 유출구(12) 방향으로 원통형태의 유출관(20)이 형성되되, 상기 유출관(20)의 일부가 상기 프레임(10)의 유출구(12)에 삽입되고, 물이 흘러오는 방향으로 유출관(20)의 관통부위는 밀폐된다.Next, the outlet 10 of the cylindrical shape is formed in the frame 10 in the direction of the outlet 12 from the inlet 11, and a portion of the outlet 20 is the outlet 12 of the frame 10. Inserted into the, the through portion of the outlet pipe 20 in the direction of the water flow is closed.

상기 유출관(20)이 프레임(10)의 유출구(12)에 삽입되되, 상기 유출관(20)과 프레임(10)이 접촉되는 사이에 베어링이 구성되고, 상기 유출관(20)이 축을 중심으로 회동되도록 상기 유출관(12)의 일측에 모터와 같은 동력장치를 설치한다.The outlet tube 20 is inserted into the outlet 12 of the frame 10, the bearing is configured between the outlet tube 20 and the frame 10 in contact, the outlet tube 20 is about the axis A power unit such as a motor is installed on one side of the outlet pipe 12 so as to rotate.

상기 동력장치(21)의 동력전달 방식은 다양한 방법으로 상기 유출관(20)이 회동되도록 할 수 있지만 본 발명에서는 유출관(20)의 일측에 기어를 형성하여 상기 동력장치(21)와 체인으로 연동 되도록 하고 있다.The power transmission method of the power unit 21 may allow the outlet pipe 20 to rotate in various ways, but in the present invention, by forming a gear on one side of the outlet pipe 20 to the power unit 21 and the chain. It is working together.

상기 유출관(20)의 밀폐된 부위는 무게를 지탱하기 위해 지지축을 형성함이 바람직하다.The closed portion of the outlet pipe 20 is preferably to form a support shaft to support the weight.

상기 유출관(20)의 외주면에는 다수의 통공(22)이 방사형으로 형성되되, 상기 통공(22)의 내부면에는 이후 여과봉(31)이 나사결합 될 수 있도록 나사산이 형성되어 있다.On the outer circumferential surface of the outflow pipe 20 is formed a plurality of through-holes radially, the inner surface of the through-holes 22 is formed with a thread so that the filter rod 31 can be screwed later.

상기와 같은 구조로 형성된 프레임(10)과 유출관(20)으로 인해 수로내로 흐르는 물이 상기 유출관(20)을 통해서만 프레임(10)을 지나가거나 또는 역방향으로 물이 지나갈 수 있는 구조로 형성되어 있는 것이다.
Due to the frame 10 and the outflow pipe 20 formed as described above, the water flowing into the water passage is formed in a structure that allows the water to pass through the frame 10 only through the outflow pipe 20 or in a reverse direction. It is.

다음 계단식으로 폭이 좁아지는 원기둥형태의 여과봉(30)은 하부에 나사산이 형성되어 상기 유출관(20)의 통공(22)에 나사결합되도록 한다.Next, the columnar filter rod 30 having a narrower step shape is formed with a screw thread at the lower portion thereof to be screwed into the through hole 22 of the outlet pipe 20.

상기 유출관(20)의 통공(22)에 나사결합된 여과봉(30)은 유출관(20)의 축을 중심으로 방사형으로 나열되되, 상기 유출관(20)의 통공(22)의 수는 결합되는 여과봉(30)의 부피에 따라 다수의 여과봉(30)들이 방해가 되지 않는 범위내에 최대한 조밀하게 형성한다.Filter rods 30 screwed to the through-hole 22 of the outlet pipe 20 are arranged radially around the axis of the outlet pipe 20, the number of the through-hole 22 of the outlet pipe 20 is coupled According to the volume of the filter rod 30 to be formed a plurality of filter rods 30 as densely as possible within the range does not interfere.

상기와 같이 다수의 여과봉(30)을 상기 유출관(20)의 통공(22)에 각각 나사결합되어 파손되거나 고장이나면 개별로 분리하여 수리할 수 있는 이점이 있다.As described above, if the plurality of filter rods 30 are screwed into the through holes 22 of the outlet pipe 20, respectively, and are broken or broken, there is an advantage in that they can be separated and repaired separately.

그리고, 상기 여과봉(30)의 외주면에는 다수의 유입공(31)이 방사형으로 형성되며 유입공(31)에는 여과막(32)이 형성된다.In addition, a plurality of inlet holes 31 are radially formed on the outer circumferential surface of the filter rod 30, and a filtration membrane 32 is formed in the inlet hole 31.

상기 여과봉(30)의 유입공(31)을 통해 물의 이물질이 여과되면서 유입되고, 상기 유출관(20)으로 물이 이동된다.The foreign matter of the water is introduced through the inlet hole 31 of the filter rod 30 is filtered, the water is moved to the outlet pipe (20).

상기 여과봉(30)의 유입공(31)으로 걸러지는 이물질은 강한 수압을 분사하여 씻어내는 방법과 같이 일반적인 방법으로 청소해주면 된다.Foreign matter filtered by the inlet 31 of the filter rod 30 may be cleaned in a general manner, such as washing by spraying a strong water pressure.

상기 여과봉(30)의 유입공(31)형태는 도 5와 같이 원 또는 사각형과 같이 물이 유입되는 면적을 최대한 늘릴 수 있도록 유입공(31)과 유입공(31) 사이의 면적을 최대한 줄일 수 있는 형태로 형성하면 된다.The inlet hole 31 of the filter rod 30 is as shown in Figure 5 to reduce the area between the inlet hole 31 and the inlet hole 31 as much as possible to increase the area of the inlet water, such as a circle or square It can be formed in a form that can be.

상기와 같이 형성된 여과봉(30)은 베르누이 정리와 같이 넓은 곳에서 좁은곳으로 물이 흘러들어가면서 유입속도가 증가하는 방식이다.
The filter rod 30 formed as described above is a method in which the inflow rate increases as water flows from a wide place to a narrow place such as Bernoulli's theorem.

상기와 같은 구조로 형성된 본 발명은 같은 조건의 부피로 형성할 경우 디스크형태의 원판형태보다 방사형으로 구성된 전체 여과봉(30)의 유입면적이 넓고, 유입속도가 빨라져 여과시간이 대폭 줄어들고 동시에 여과량도 증대되는 것이다.
When the present invention is formed in the same structure as described above, the inlet area of the whole filter rod 30 which is radially formed than the disc-shaped disk form when the volume is formed under the same conditions is wider, and the inflow rate is faster, and the filtration time is drastically reduced and at the same time the filtration amount. Is also increased.

10: 프레임 11: 유입구
12: 유출구 20: 유출관
21: 동력장치 22: 통공
30: 여과봉 31: 유입공
32: 여과막
10: Frame 11: Inlet
12: outlet 20: outlet
21: power unit 22: through hole
30: filter rod 31: inlet hole
32: filtration membrane

Claims (1)

수로내에 설치되어 오폐수에 이물질을 여과하는 여과필터에 있어서,
상기 수로내에 설치되어 일측에 물이 유입되는 유입구(11)와 물이 배출되는 유출구(12)가 형성된 박스형태의 프레임(10)과;
상기 프레임(10) 내부에서 일측이 상기 프레임(10)의 유출구(12)와 연통되며 타측이 밀폐되어 원통 형태로 형성되되, 상기 원통은 동력장치(21)로 인해 축을 중심으로 회동되고, 상기 원통의 외주면에는 다수의 통공(22)이 방사형으로 형성된 유출관(20)과;
계단식으로 폭이 좁아지는 원기둥형태로 형성되어 상기 유출관(20)의 통공(22)에 나사결합되되, 상기 원기둥의 외주면에는 다수의 유입공(31)이 방사형으로 형성되고, 상기 유입공(31)에는 여과막(32)이 형성된 여과봉(30)으로 구성되어,
상기 프레임(10)에 유입된 물이 상기 여과봉(30)의 유입공(31)을 통해 이물질이 걸러지면서 상기 배출관(20)을 통해 상기 프레임(10)의 유출구(12)로 여과된 물이 배출되도록 구성된 것을 특징으로 하는 방사형 여과필터.
In the filtration filter which is installed in the water channel and filters foreign substances to the waste water,
A box-shaped frame 10 installed in the water channel and having an inlet 11 through which water is introduced and an outlet 12 through which water is discharged;
Inside the frame 10, one side is in communication with the outlet 12 of the frame 10 and the other side is sealed to form a cylindrical shape, the cylinder is rotated about an axis due to the power unit 21, the cylinder On the outer circumferential surface of the plurality of through-holes 22 radially formed outlet pipe 20;
It is formed in a cylindrical shape narrowing stepwise, screwed to the through-hole 22 of the outlet pipe 20, a plurality of inlet 31 is formed radially on the outer peripheral surface of the cylinder, the inlet 31 ) Is composed of a filter rod 30 is formed with a filtration membrane 32,
As the water introduced into the frame 10 is filtered through the inlet 31 of the filter rod 30, the water filtered through the outlet pipe 20 to the outlet 12 of the frame 10 is filtered. Radial filtration filter, characterized in that configured to be discharged.
KR1020130058621A 2013-05-23 2013-05-23 Radial filtration filter KR101349944B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130058621A KR101349944B1 (en) 2013-05-23 2013-05-23 Radial filtration filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130058621A KR101349944B1 (en) 2013-05-23 2013-05-23 Radial filtration filter

Publications (1)

Publication Number Publication Date
KR101349944B1 true KR101349944B1 (en) 2014-01-14

Family

ID=50145188

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130058621A KR101349944B1 (en) 2013-05-23 2013-05-23 Radial filtration filter

Country Status (1)

Country Link
KR (1) KR101349944B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106178957A (en) * 2016-08-04 2016-12-07 南通奥凯生物技术开发有限公司 A kind of filter for purifying
CN111971104A (en) * 2018-08-03 2020-11-20 阿伦股份有限公司 Filter for water treatment and filtering apparatus including the same
CN113908614A (en) * 2021-10-27 2022-01-11 常立翠 Disc type vacuum filter
CN116747593A (en) * 2023-08-16 2023-09-15 兴合环保科技(山东)有限公司 Sewage purification device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3890235A (en) * 1972-07-27 1975-06-17 Envirotech Corp Vacuum filter
JPH05309242A (en) * 1992-05-09 1993-11-22 Material Eng Tech Lab Inc Filter element and liquid treating device
JP2003299913A (en) * 2002-04-09 2003-10-21 Eastern Giken Kk Filter apparatus
KR101080939B1 (en) * 2011-05-19 2011-11-08 중앙종합기계(주) A disk drum filter for disposing a sludge or sewage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3890235A (en) * 1972-07-27 1975-06-17 Envirotech Corp Vacuum filter
JPH05309242A (en) * 1992-05-09 1993-11-22 Material Eng Tech Lab Inc Filter element and liquid treating device
JP2003299913A (en) * 2002-04-09 2003-10-21 Eastern Giken Kk Filter apparatus
KR101080939B1 (en) * 2011-05-19 2011-11-08 중앙종합기계(주) A disk drum filter for disposing a sludge or sewage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106178957A (en) * 2016-08-04 2016-12-07 南通奥凯生物技术开发有限公司 A kind of filter for purifying
CN111971104A (en) * 2018-08-03 2020-11-20 阿伦股份有限公司 Filter for water treatment and filtering apparatus including the same
CN113908614A (en) * 2021-10-27 2022-01-11 常立翠 Disc type vacuum filter
CN113908614B (en) * 2021-10-27 2023-04-14 爱阔特(上海)清洗设备制造有限公司 Disc type vacuum filter
CN116747593A (en) * 2023-08-16 2023-09-15 兴合环保科技(山东)有限公司 Sewage purification device
CN116747593B (en) * 2023-08-16 2023-10-27 兴合环保科技(山东)有限公司 Sewage purification device

Similar Documents

Publication Publication Date Title
KR101349944B1 (en) Radial filtration filter
CN205182325U (en) Driven type rotary drum (cone -element) micro -filtration device
MX2007007193A (en) Improved self-cleaning filter for agricultural irrigation water.
JP2018501087A (en) Water purification equipment
CN202506198U (en) Oilfield water injection back-flushing type filtration dirt separator
CN205360732U (en) Filter mesh type self -cleaning sewage filtering device
JP2013188689A (en) Filter element and filtering device
KR101657139B1 (en) Back wash filter apparatus without power
JP3194493U (en) Fine particle removal filtration equipment
CN203208759U (en) Pressure-type automatic-cleaning filter
CN109876502A (en) A kind of disc type self-cleaning filter
JP2020093240A (en) Filtration device
CN210845485U (en) Spiral-flow type backwashing filter
CN103252165B (en) Water purifier with hollow microfiltration membranes
KR101972113B1 (en) Angle valve
KR20130084450A (en) Oil strainer equipped revolution filter
CN204522455U (en) Filter backwash synchronous mode filter
CN103253735B (en) Quantum activating water purifier with hollow microfiltration membranes
CN204767792U (en) Sewage sieves filter equipment soon
JP2016064371A (en) Water treatment apparatus
JP2013022479A (en) Strainer
JP2013022480A (en) Strainer
JP2004141849A (en) Continuous filtering equipment
CN207520718U (en) Macromolecular filtering device filter and its filter cartridge construction with the filter
RU2592632C1 (en) Automatic regenerated filter

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20170104

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20171220

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20200103

Year of fee payment: 7