KR200191551Y1 - A strainer used for underdrain - Google Patents

A strainer used for underdrain Download PDF

Info

Publication number
KR200191551Y1
KR200191551Y1 KR2020000000540U KR20000000540U KR200191551Y1 KR 200191551 Y1 KR200191551 Y1 KR 200191551Y1 KR 2020000000540 U KR2020000000540 U KR 2020000000540U KR 20000000540 U KR20000000540 U KR 20000000540U KR 200191551 Y1 KR200191551 Y1 KR 200191551Y1
Authority
KR
South Korea
Prior art keywords
flange
cap
slits
water
strainer
Prior art date
Application number
KR2020000000540U
Other languages
Korean (ko)
Inventor
이창희
Original Assignee
주식회사한국건설관리공사
카본코리아주식회사
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 주식회사한국건설관리공사, 카본코리아주식회사 filed Critical 주식회사한국건설관리공사
Application granted granted Critical
Publication of KR200191551Y1 publication Critical patent/KR200191551Y1/en

Links

Classifications

    • 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
    • B01D35/28Strainers not provided for elsewhere
    • 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
    • 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
    • B01D35/16Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid

Landscapes

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

Abstract

본고안은 하수처리장, 정수장등의 여과지에서 여과사층과 이 여과사층하부의 압력실 사이에 설치되는 하부집수블럭의 집수공에 나선결합되어서 여과수의 집수와 역세척수의 분배기능을 갖는 하부집수장치용 스트레이너에 관한 것으로 집수와 역세척성능을 향상시켜주기 위하여서 캡(16)의 막혀진 윗벽(22)에는 여러개의 슬리트(24)를 형성하고, 중공몸체(20)의 상단부에 있는 플랜지(18)의 저면(30)에는 여러개의 요입부(32)를 형성하며, 플랜지(18)의 상부에는 요입부(32)와 연결되는 환상홈(34)을 형성하고, 플랜지(18)의 테두리하부에는 요입부(32)와 연결되는 슬리트(36)를 형성하며, 캡(16)의 원통형곡벽(10)에는 여러개의 슬리트(12)를 형성하되 슬리트(12)를 횡단면형태가 축소노즐형이 되도록 형성한 집수장치용 스트레이너임.This paper is for the lower collecting device which has the function of distributing the collecting water of the filtered water and the backwashing water by being spirally coupled to the collecting hole of the lower collecting block installed between the filter sand layer and the pressure chamber under the filter sand layer in filter paper of sewage treatment plant and water purification plant A strainer (24) is formed on the closed upper wall (22) of the cap (16) to improve the catchment and backwashing performance, and the flange (18) at the upper end of the hollow body (20). A plurality of concave portions 32 are formed on the bottom surface 30 of the concave portion, and an annular groove 34 connected to the concave portion 32 is formed on the upper portion of the flange 18, and the concave lower portion of the flange 18 The slits 36 are connected to the mouth 32, and the slits 12 are formed in the cylindrical curved wall 10 of the cap 16, but the slits 12 have a cross-sectional shape of a reduced nozzle type. Strainer for water collecting device formed to be possible.

Description

집수장치용 스트레이너{A strainer used for underdrain}Strainer for collecting device {A strainer used for underdrain}

본고안은 하수처리장, 정수장등의 여과지에서 여과사층과, 이 여과사층 하부의 압력실 사이에 설치되는 하부집수블럭의 집수공에 나선결합되어서 여과수의 집수와 역세척수의 분배기능을 갖는 하부집수장치용 스트레이너에 관한 것으로서, 특히 여과수의 집수시 캡내부에 들어붙은 이물질은 물론 캡의 플랜지와 결합된 중공몸체의 플랜지주위에 퇴적된 퇴적물도 역세척시에 모두 원활하게 제거, 분산시켜 줄 수 있는 스트레이너에 관한 것이다.In this paper, the lower collecting device has a function of distributing the collection of filtered water and the backwash water by being spirally coupled to the collecting hole of the lower collecting block installed between the filtered sand layer and the pressure chamber under the filtered sand layer in filter paper such as sewage treatment plant and water purification plant. In particular, the strainer is designed to smoothly remove and disperse all deposits accumulated around the flange of the hollow body coupled with the flange of the cap, as well as foreign matters stuck inside the cap when the filtered water is collected. It is about.

일반적으로 집수장치용 스트레이너는 역세척시 집수가 이루어지는 캡의 슬리트를 통해서 고압의 역세척수가 분출되도록하여 그 내부를 청소할 수 있도록 되어있는 바, 종래에 대한민국 실용신안공고번호 제90-119호, 제89-2202호 및 특허출원번호 제95-26645호와 등록특허 제0199127호등으로 알려진 스트레이너는 모두 집수와 역세척이 이루어지는 슬리트가 캡의 원통형측벽에만 방사형으로 형성된 것이었다.In general, the strainer for the collecting device is to be able to clean the inside of the high-pressure backwash water to be ejected through the slits of the cap made of the water collecting during backwashing, the conventional Korean Utility Model Publication No. 90-119, Strainers, known as Nos. 89-2202, Patent Application Nos. 95-26645, and Patent Application No. 0199127, all had slits in which the catch and backwash were formed radially only on the cylindrical side wall of the cap.

따라서 종래의 슬레이너는 집수되는 물에 포함된 이물질이 캡의 내측벽과 천정을 포함한 내벽이 모두 들어붙는 것임에도 불구하고 내측벽에만 개방된 슬리트가 형성된 까닭에 역세척시 역세척수의 압력을 높여주더라도 캡내부를 깨끗하게 청소하는데 효율적이지 못했었다.Therefore, in the conventional slender, even though the foreign matter contained in the water being collected is attached to both the inner wall of the cap and the inner wall including the ceiling, slits are opened only on the inner wall, so that the pressure of the backwash water during backwashing is reduced. Even if it was raised, it was not efficient to clean the inside of the cap.

특히 집수시 캡의 슬리트를 제외한 막혀진 캡의 원통형측벽부분과 부딪히면서 바닥에 쌓인 퇴적물을 역세척시에 효과적으로 분산시켜주는데 많은 어려움이 있었다.In particular, there was a lot of difficulty in effectively dispersing the accumulated sediment on the floor while colliding with the cylindrical side wall part of the cap except the slits of the cap during water collection.

이를 해결하기 위한 것으로는 상기 종래기술들중 등록특허 제0199127호를 들수 있는데 이 특허는 기존것에 비하여 바닥과 밀착되는 플랜지의 두께를 낮추어서 캡의 슬리트와 바닥간의 높이차이를 줄여줌으로서 역세척시 역세척수를 바닥과 보다 근접되게 분출할 수 있도록 되어 있으나, 바닥에 누적된 퇴적물에는 역세척수가 미치지 못하여서 퇴적물을 효과적으로 제거할 수 있도록 분산시켜주기 어려운 단점이 있었다.As a solution to this problem, there is a registered patent of the prior art No. 0199127. This patent lowers the thickness of the flange close to the floor compared to the existing one by reducing the height difference between the slitting and the bottom of the cap when backwashing The backwash water can be ejected closer to the bottom, but the accumulated sediment on the bottom does not reach the backwash water, which is difficult to disperse to remove the sediment effectively.

본고안자는 이와같은 종래기술의 제반문제점을 해결하기 위해서 연구검토한 결과 역세척수를 캡의 원통형측벽은 물론 캡의 천정과, 바닥과 직접접하는 플랜지쪽으로도 분출시켜줄수만 있다면 집수와 역세척모두를 보다 효과적으로 수행할 수 있는 것임을 알게되어서 본고안을 완성하기에 이르렀다.In order to solve these problems of the prior art, the present inventors have studied and analyzed the catchment and backwashing more effectively if the backwashing water can be ejected not only to the cylindrical side wall of the cap but also to the ceiling of the cap and the flange directly contacting the floor. I found it workable and came to complete this paper.

따라서 본고안은 집수와 역세척 성능이 모두 우수한 스트레이너를 제공하는데 기술적과제를 둔 것이다.Therefore, this paper aims to provide a strainer with excellent catchment and backwashing performance.

본고안은 캡의 플랜지와 중공몸체의 플랜지를 보다 견고하게 플랜지드(flanged)이음함으로서 내구성이 우수한 스트레이너를 제공하는데 또 다른 기술적과제를 둔 것이다.This proposal is another technical problem to provide a durable strainer by flanged the flange of the cap and the flange of the hollow body more firmly.

도1은 본고안에 의한 스트레이너의 일부를 단면으로 표시하여 내부구조를 보인 정면도.Figure 1 is a front view showing the internal structure showing a part of the strainer according to the present invention in cross section.

도2는 본고안에 의한 스트레이너의 평면도.2 is a plan view of a strainer according to the present invention;

도3은 도1의 A-A선 확대단면도3 is an enlarged cross-sectional view taken along the line A-A of FIG.

도4는 도1의 B-B선 확대단면도4 is an enlarged cross-sectional view taken along the line B-B of FIG.

도5는 도1의 C선내 확대도FIG. 5 is an enlarged view taken along line C of FIG.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10 : 원통형측벽 12 : 슬리트10 cylindrical side wall 12 slits

14 : 플랜지 16 : 캡14 flange 16 cap

18 : 플랜지 20 : 중공몸체18: flange 20: hollow body

22 : 윗벽 24 : 슬리트22: upper wall 24: slits

32 : 요입부 34 : 환상요홈32: recessed part 34: annular groove

36 : 슬리트36: Slit

본고안은 도1에 예시한 바와같이 원통형측벽(10)에 여러개의 슬리트(12)가 형성되어 있고, 하단부에 플랜지(14)를 가진 캡(16)과, 이 캡(16)의 플랜지(14)와 접합되는 플랜지(18)가 상단부에 형성된 중공몸체(20)로 이루어진 것에 있어서,As illustrated in FIG. 1, the cap 16 has a plurality of slits 12 formed on the cylindrical side wall 10, the cap 16 having a flange 14 at its lower end, and the flange 16 of the cap 16. In the flange 18 to be bonded to the 14 is made of a hollow body 20 formed in the upper end,

캡(16)의 막혀진 윗벽(22)에는 도2에 잘 표현한 바와같이 여러개의 슬리트(24)를 형성하고, 도3에 잘 표현한 바와같이 원통형측벽(10)에 여러개의 슬리트(12)를 형성하되 이 슬리트(12)의 횡단면형태를 노즐형으로 형성한 것이다. 즉, 원통형측벽(10)의 외측벽(26)쪽에 위치하는 슬리트(12)의 폭(W)보다 내측벽(28)쪽에 위치하는 슬리트(12)의 폭(W)을 크게하여서 외측벽(26)의 표면적보다 내측벽(28)의 표면적이 감소되도록 함으로서 집수시 집수되는 물과 내측벽(28)의 접촉부위를 감소시켜 주어서 내측벽(28)에 들어붙는 이물질의 량을 감소시킴과 아울러서 역세척수를 분출할때 노즐효과를 이용하여 분출압력과 속도를 증대시켜줌으로서 이물질을 캡(16) 밖으로 잘 제거할 수 있도록 한 것이다.The closed top wall 22 of the cap 16 forms a plurality of slits 24 as well shown in FIG. 2, and a number of slits 12 in the cylindrical side wall 10 as well shown in FIG. 3. To form a but the cross-sectional shape of the slits 12 is formed in the shape of a nozzle. That is, the width W of the slits 12 located on the inner wall 28 is larger than the width W of the slits 12 located on the outer wall 26 of the cylindrical side wall 10 so that the outer wall 26 is larger. By reducing the surface area of the inner wall 28 to reduce the contact area between the water being collected and the inner wall 28 at the time of collection, the amount of foreign matter adhering to the inner wall 28 is reduced. When spraying the washing water to increase the ejection pressure and speed by using the nozzle effect to remove the foreign matter well outside the cap (16).

그리고 중공몸체(20)에 있는 플랜지(18)의 저면(30)에는 도4에 잘 표현한 바와같이 여러개의 요입부(32)를 형성하고, 플랜지(18)의 상부에는 상기 요입부(32)와 연통하는 환상홈(34)을 형성하며, 플랜지(18)의 테두리하부에는 상기 요입부(32)와 연통하는 슬리트(36)를 형성하여서 역세척시 중공몸체(20)를 통해서 유입되는 세척수가 플랜지(18)의 환상홈(34), 요입부(32) 및 슬리트(36)를 통하여 바닥(38)쪽으로 직접분출될 수 있도록 한것이다.And the bottom surface 30 of the flange 18 in the hollow body 20 is formed with a plurality of concave indentation 32, as shown in Figure 4, the upper portion of the flange 18 and the concave indentation 32 The annular groove 34 is formed to communicate with each other, and the slits 36 communicating with the recess 32 are formed at the lower edge of the flange 18 so that the washing water flowing through the hollow body 20 during backwashing is formed. Through the annular groove 34, the inlet portion 32 and the slits 36 of the flange 18 is to be ejected directly to the floor 38.

캡(16)의 플랜지(14)와, 중공몸체(20)의 플랜지(18)는 도5에 잘 표현한 바와같이 서로 견고하게 플랜지드이음되어 있다.The flange 14 of the cap 16 and the flange 18 of the hollow body 20 are firmly flanged together as shown in FIG.

즉, 플랜지(14)의 아래쪽에는 환상요입부(40)가 형성되어 있고, 이와 대응하는 플랜지(18)의 윗쪽에는 환상돌출부(42)가 형성되어 있어서 서로 맞물려져 있으며,That is, the annular recess portion 40 is formed below the flange 14, the annular projection portion 42 is formed on the upper side of the flange 18 corresponding thereto, and are engaged with each other,

상기 환상요입부(40)와 환상돌출부(42)는 접촉면적을 증가시켜 주기 위해서 그들의 크기를 작게하는 대신에 갯수를 증가시켜서 융착시켜 줄 수도 있다.The annular indentation portion 40 and the annular projection portion 42 may be fused by increasing the number instead of reducing their size in order to increase the contact area.

이와같이 구성된 본고안에 의한 스트레이너는 집수시 물이 캡(16)의 원통형측벽(10)에 있는 슬리트(12)는 물론 캡(16)의 윗벽(22)에 있는 슬리트(24)와, 중공몸체(20)의 플랜지(18)에 있는 슬리트(36), 요입부(32) 및 환상홈(34)을 통해서 중공몸체(20)쪽으로 흐르게 되어서 집수가 매우 원활하게 이루어질 뿐만 아니라 집수시 캡(16)의 윗벽(22)바깥쪽과, 캡(16)과 중공몸체(20)의 플랜지(14), (18)주위에 이물질이 쌓이는 량을 크게 감소시켜서 스트레이너의 청소주기를 대폭연장시켜 준다.The strainer according to the present invention configured as described above includes the slits 24 in the upper wall 22 of the cap 16 as well as the slits 12 in the cylindrical side wall 10 of the cap 16 and the hollow body when water is collected. Flowing toward the hollow body 20 through the slits 36, the recess 32, and the annular groove 34 in the flange 18 of the 20, the catch is not only made very smooth, but also the cap 16 at the time of catching. Outside the upper wall 22, and the cap 16 and the hollow body 20 of the flanges 14, 18, the amount of accumulated foreign matter greatly reduced, greatly extending the cleaning cycle of the strainer.

그리고 역세척시 중공단체(20)로 부터 부입되는 역세척수가 캡(16)의 원통형측벽(10)에 있는 슬리트(12)로 분출될때에 이 슬리트(12)의 횡단면형태가 축소노즐형으로된 것이어서 역세척수의 분출압력과 속도를 증대시켜주어 이물질을 캡(16)밖으로 부다 잘 제거할 수 있도록 해주고, 캡(16)의 윗벽(22)에 있는 슬리트(24)쪽으로도 역세척수가 분출되어서 윗벽(22)의 내부와 외부에 있던 이물질을 제거해주며,And when the backwashing water injected from the hollow body 20 is ejected from the hollow body 20 into the slits 12 in the cylindrical side wall 10 of the cap 16, the cross-sectional shape of the slits 12 is reduced in nozzle type. It increases the ejection pressure and speed of the backwashing water so that foreign matter can be easily removed out of the cap 16, and the backwashing water toward the slits 24 on the upper wall 22 of the cap 16 can be removed. It is ejected to remove foreign substances in the inside and outside of the upper wall (22),

바닥(38)과 직접접하는 중공몸체(20)의 플랜지(18)로부터도 세척수가 분출되어서 바닥(38)에 누적된 이물질도 제거하기 쉽도록 분산, 제거해 준다.Washing water is also ejected from the flange 18 of the hollow body 20 directly in contact with the floor 38, so that the foreign matter accumulated on the floor 38 is easily dispersed and removed.

본고안에 의한 스트레이너는 집수시 캡(16)의 원통형측벽(10)쪽은 물론 윗벽(22)쪽과, 중공몸체(20)의 플랜지(18)쪽으로도 물이 원활하게 유입되어서 집수성능이 우수하고, 역세척시 중공몸체(20)쪽으로부터 유입되는 세척수가 캡(16)의 원통형측벽(10)쪽은 물론 윗벽(2)쪽과, 중공몸체(20)의 플랜지(18)쪽으로도 분출되는 것이이서 캡(16)내부의 이물질을 깨끗하게 제거할 수 있는 것일 뿐만 아니라, 바닥(38)에 누적된 튀적물도 제거하기 쉽게 분산시켜 줄 수 있어 역세척기능이 매우 우수하며, 캡(16)과 중공뭄체(20)를 보다 견고하게 플래지드이음할 수 있어서 내구성이 우수한 등의 장점이 있다.The strainer according to the present invention has excellent water collecting performance because water flows smoothly into the cylindrical side wall 10 side of the cap 16 as well as the upper wall 22 side and the flange 18 side of the hollow body 20 during water collection. In the case of backwashing, the washing water flowing from the hollow body 20 is ejected into the cylindrical side wall 10 side of the cap 16 as well as the upper wall 2 side and the flange 18 side of the hollow body 20. Not only can the foreign matter inside the cap 16 can be removed cleanly, but also can be easily dispersed to remove the accumulated dirt on the bottom 38, the backwash function is very excellent, the cap 16 and the hollow air The 20 can be more firmly flanged, so that the durability is excellent.

Claims (3)

원통형측벽(10)에 여러개의 슬리트(12)가 형성되어있고, 하단부에 플랜지(14)를 가진 캡(16)과, 상단부에 플랜지(18)를 가진 중공몸체(20)를 플랜지드이음한 것에 있어서, 캡(16)의 막혀진 윗벽(22)에는 여러개의 슬리트(24)가 형성되어 있고,A plurality of slits 12 are formed in the cylindrical side wall 10, and the cap 16 having the flange 14 at the lower end and the hollow body 20 having the flange 18 at the upper end are flanged. In the above, a plurality of slits 24 are formed on the closed upper wall 22 of the cap 16, 플랜지(18)의 저면(30)에는 여러개의 요입부(32)가 형성되어 있으며,The bottom surface 30 of the flange 18 is formed with a plurality of recesses 32, 플랜지(18)의 상부에는 요입부(32)와 연결되는 환상홈(34)이 형성되어 있고, 플랜지(18)의 테두리하부에는 요입부(32)와 연결되는 슬리트(36)가 형성되어 있는 집수장치용 스트레이너.The upper portion of the flange 18 is formed with an annular groove 34 to be connected to the concave portion 32, the slits 36 to be connected to the concave portion 32 is formed at the lower edge of the flange 18. Collection strainer. 제 1 항에 있어서, 슬리트(12)의 횡단면형태가 축소노즐형으로 되어 있는 것임을 특징으로 하는 집수장치용 스트레이너.2. The strainer for water collecting device according to claim 1, wherein the slit (12) has a cross-sectional shape of a reduced nozzle type. 제 1 항에 있어서, 캡(16)의 플랜지(14)와, 중공몸체(20)의 플랜지(18)에 각각 서로 대응하는 환상요입부(40)와 환상돌출부(42)가 형성되어 있는 것임을 특징으로 하는 집수장치용 스트레이너.2. The annular indentation portion 40 and the annular projection portion 42 corresponding to each other are formed in the flange 14 of the cap 16 and the flange 18 of the hollow body 20, respectively. Strainers for collecting devices.
KR2020000000540U 2000-01-10 2000-01-10 A strainer used for underdrain KR200191551Y1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2000-0000928A KR100367097B1 (en) 2000-01-10 2000-01-10 A strainer used for underdrain

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
KR10-2000-0000928A Division KR100367097B1 (en) 2000-01-10 2000-01-10 A strainer used for underdrain

Publications (1)

Publication Number Publication Date
KR200191551Y1 true KR200191551Y1 (en) 2000-08-16

Family

ID=19637416

Family Applications (2)

Application Number Title Priority Date Filing Date
KR10-2000-0000928A KR100367097B1 (en) 2000-01-10 2000-01-10 A strainer used for underdrain
KR2020000000540U KR200191551Y1 (en) 2000-01-10 2000-01-10 A strainer used for underdrain

Family Applications Before (1)

Application Number Title Priority Date Filing Date
KR10-2000-0000928A KR100367097B1 (en) 2000-01-10 2000-01-10 A strainer used for underdrain

Country Status (1)

Country Link
KR (2) KR100367097B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100540262B1 (en) * 2002-05-23 2006-01-16 문병실 Refair structur of underdrain system and method therof
KR200464222Y1 (en) 2009-07-09 2013-01-09 주식회사 지승개발 An a filter for biomass filtration reactor
KR101128825B1 (en) * 2011-03-30 2012-03-23 허방련 Strainer for filter basin
KR101441246B1 (en) * 2013-06-26 2014-09-17 추지화 Adjustable height a Strainer type for Underdrain system connected with porous filter media support
CN103381312B (en) * 2013-07-17 2014-08-27 博尔塔拉蒙古自治州永奇节水设备科技开发有限责任公司 Water-saving filter tower cap and water-saving filter composed of same
KR200486344Y1 (en) 2015-07-01 2018-05-15 주식회사 거성개발 Strainer for filter basin
CN107198890B (en) * 2017-08-03 2019-11-15 苏州宝典环保科技有限公司 Continuity active carbon processing system and control method and application

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476020A (en) * 1981-12-08 1984-10-09 Paterson Candy International Limited Strainer assembly for granular media filters
US5028322A (en) * 1989-07-11 1991-07-02 The Graver Company Low profile underdrain strainer assembly with improved distribution/fastening means
KR0150420B1 (en) * 1995-08-25 1998-11-16 장지학 Strainer for underdrain system
KR100199127B1 (en) * 1996-03-27 1999-06-15 김현택 Straner
KR19980061248U (en) * 1997-03-22 1998-11-05 이종각 Strainer for collecting block of filter paper
KR200162305Y1 (en) * 1997-07-15 1999-12-15 이철환 Strainer for filtration
KR100315504B1 (en) * 1998-02-17 2002-02-07 임권신 Strainer installed block for high rate filter bed
KR200242554Y1 (en) * 1999-05-12 2001-09-25 김현택 A strainer of the filtering equipment

Also Published As

Publication number Publication date
KR20010068817A (en) 2001-07-23
KR100367097B1 (en) 2003-01-14

Similar Documents

Publication Publication Date Title
KR200191551Y1 (en) A strainer used for underdrain
CN114873664B (en) Water purifying filter
JPH10137516A (en) Device for removing foreign matter in water pipe
US6319403B1 (en) Effluent filter for septic tanks and other on-site waste disposal systems
CN217340217U (en) Water flow turning-back separation mechanism and liquid separation and purification device comprising same
CN215939209U (en) Rotating arm type efficient self-cleaning filter
CN210699363U (en) Water film dust remover
KR200381733Y1 (en) Sand filter for Advanced Wastewater Treatment Apparatus
KR100720598B1 (en) Sand filter for Advanced Wastewater Treatment Apparatus
CN208152204U (en) The adaptive long-term anti-block apparatus in toilet
KR200215894Y1 (en) Vehicle dry air cleaner
JPS5811367Y2 (en) Backwash device in strainer
JPS644415Y2 (en)
CN2897996Y (en) Jetting and flushing water purifier
CN216062217U (en) Instant automatic filter of high temperature is used in soy sauce production
CN110104706A (en) High-efficiency hydraulic spins fore filter
CN219091215U (en) Self-cleaning type dirt remover
KR102677940B1 (en) continuous separating and discharge apparatus of floated dludge and sedimentation sludge
JPH078008Y2 (en) Drainer
JPH0510884Y2 (en)
EP0242357A1 (en) Nonmetallic clean side spin-on filter
CN210964481U (en) Automatic wash drum-type dust remover
JPH0234644B2 (en)
CN202174011U (en) Novel shower set
KR200188537Y1 (en) Pressure-type filtering apparatus with improved reverse-washing efficiency

Legal Events

Date Code Title Description
U107 Dual application of utility model
REGI Registration of establishment
T201 Request for technology evaluation of utility model
T701 Written decision to grant on technology evaluation
G701 Publication of correction
LAPS Lapse due to unpaid annual fee