KR100367097B1 - A strainer used for underdrain - Google Patents
A strainer used for underdrain Download PDFInfo
- Publication number
- KR100367097B1 KR100367097B1 KR10-2000-0000928A KR20000000928A KR100367097B1 KR 100367097 B1 KR100367097 B1 KR 100367097B1 KR 20000000928 A KR20000000928 A KR 20000000928A KR 100367097 B1 KR100367097 B1 KR 100367097B1
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- KR
- South Korea
- Prior art keywords
- flange
- slits
- cap
- water
- strainer
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000007373 indentation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 2
- 238000011001 backwashing Methods 0.000 abstract description 12
- 239000004576 sand Substances 0.000 abstract description 4
- 238000005315 distribution function Methods 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering 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
- B01D35/28—Strainers not provided for elsewhere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering 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
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering 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
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
본 발명은 하수처리장, 정수장등의 여과지에서 여과사층과 이 여과사층하부의 압력실 사이에 설치되는 하부집수블럭의 집수공에 나선결합되어서 여과수의 집수와 역세척수의 분배기능을 갖는 집수장치용 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 환상요홈(34)을 형성하고, 플랜지(18)의 테두리하부에는 요입부(32)와 연결되는 슬리트(36)를 형성하며, 캡(16)의 원통형측벽(10)에는 여러개의 슬리트(12)를 형성하되 슬리트(12)를 횡단면형태가 축소노즐형이 되도록 형성한 집수장치용 스트레이너임.The present invention is a strainer for a water collecting device having a distribution function of collecting the filtered water and the backwash 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 such as a sewage treatment plant or a water purification plant. In order to improve the catching and backwashing performance, the clogged upper wall 22 of the cap 16 forms a plurality of slits 24 and the flange 18 of the upper end of the hollow body 20. A plurality of recesses 32 are formed on the bottom surface 30, and an annular recess 34 is formed at the upper portion of the flange 18 to be connected to the recesses 32, and a recess is formed at the lower edge of the flange 18. Slits 36 are formed to be connected to the 32, and a plurality of slits 12 are formed on the cylindrical side wall 10 of the cap 16 so that the cross-sectional shape of the slits 12 is reduced nozzle type. Formed strainer for the catchment.
Description
본 발명은 하수처리장, 정수장등의 여과지에서 여과사층과, 이 여과사층 하부의 압력실 사이에 설치되는 하부집수블럭의 집수공에 나선 결합되어서 여과수의 집수와 역세척수의 분배기능을 갖는 집수장치용 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 집수장치용 스트레이너에 관한 것이다.The present invention is for a water collecting device having a distribution function of collecting the 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 below the filtered sand layer in filter paper such as a sewage treatment plant and a water purification plant. In particular, the strainer is a water collecting device that can smoothly remove and disperse all foreign matters stuck inside the cap when collecting the filtered water, as well as the sediment deposited around the flange of the hollow body coupled with the cap flange. It relates to a strainer for.
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 스트레이너는 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, the conventional strainer increases the pressure of the backwash water during backwashing because the slits open only on the inner wall are formed even though the foreign substances contained in the water to be collected are attached to both the inner wall of the cap and the inner wall including the ceiling. Giving was not efficient enough 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.
본 발명자는 이와같은 종래기술의 제반문제점을 해결하기 위해서 연구 검토한 결과 역세척수를 캡의 원통형측벽은 물론 캡의 천정과, 바닥과 직접 접하는 플랜지쪽으로도 분출시켜줄수만 있다면 집수와 역세척 모두를 보다 효과적으로 수행할 수 있는 것임을 알게 되어서 본 발명을 완성하기에 이르렀다.The present inventors have studied and researched in order to solve these problems of the prior art, and as a result, if the backwash 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, both the collection and the backwashing It was found that the present invention can be effectively carried out to complete the present invention.
따라서 본 발명은 집수와 역세척 성능이 모두 우수한 집수장치용 스트레이너를 제공하는데 기술적과제를 둔 것이다.Therefore, the present invention has been made in view of the technical problem to provide a strainer for a water collecting device excellent in both the collection and backwash performance.
본 발명은 캡의 플랜지와 중공몸체의 플랜지를 보다 견고하게 플랜지드(flanged)이음함으로서 내구성이 우수한 집수장치용 스트레이너를 제공하는데 또 다른 기술적 과제를 둔 것이다.The present invention is another technical problem in providing a strainer for a water collecting device excellent in durability by flanged to the flange of the cap and the flange of the hollow body more firmly.
도 1은 본 발명에 의한 스트레이너의 일부를 단면으로 표시하여 내부구조를 보인 정면도.1 is a front view showing an internal structure by displaying a portion of the strainer according to the present invention in a cross-section.
도 2는 본 발명에 의한 스트레이너의 평면도.2 is a plan view of a strainer according to the present invention;
도 3은 도 1의 A-A선 확대단면도3 is an enlarged cross-sectional view taken along the line A-A of FIG.
도 4는 도 1의 B-B선 확대단면도4 is an enlarged cross-sectional view taken along the line B-B of FIG.
도 5는 도 1의 C선내 확대도5 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
본 발명은 도 1에 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,In the present invention, as illustrated in FIG. 1, a plurality of slits 12 are formed on the cylindrical side wall 10, the cap 16 having a flange 14 at a lower end thereof, 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 도 2에 잘 표현한 바와 같이 여러개의 슬리트(24)를 형성하고, 도 3에 잘 표현한 바와 같이 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 크게 하여서 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 illustrated in FIG. 2, and a number of slits 12 in the cylindrical side wall 10 as well illustrated 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 outer wall 26 is made larger by the width W of the slits 12 located on the inner wall 28 side than the width W of the slits 12 located on the outer wall 26 side of the cylindrical side wall 10. 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 도 4에 잘 표현한 바와 같이 여러개의 요입부(32)를 형성하고, 플랜지(18)의 상부에는 상기 요입부(32)와 연통하는 환상요홈(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 분출될 수 있도록 한 것이다.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. It is to be ejected through the annular groove 34, the inlet portion 32 and the slits 36 of the flange 18.
캡(16)의 플랜지(14)와, 중공몸체(20)의 플랜지(18)는 도 5에 잘 표현한 바와 같이 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. 5.
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 본 발명에 의한 집수장치용 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 환상요홈(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(18)주위에 이물질이 쌓이는 량을 크게 감소시켜서 스트레이너의 청소주기를 대폭 연장시켜 준다.The water collector strainer according to the present invention configured as described above has slits 24 in the top wall 22 of the cap 16 as well as in the slits 12 in the cylindrical side wall 10 of the cap 16 during collection. And, through the slits 36, the recess 32, and the annular groove 34 in the flange 18 of the hollow body 20 flows toward the hollow body 20, the collection is not only very smoothly but also the house Occasionally reducing the amount of foreign matter accumulated on the outer side of the upper wall 22 of the cap 16 and around the flange 18 of the cap 16 and the hollow body 20 significantly extends the cleaning cycle of the strainer.
그리고 역세척시 중공몸체(20)로 부터 유입되는 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 보다 용이하게 제거할 수 있도록 해주고, 캡(16)의 윗벽(22)에 있는 슬리트(24)쪽으로도 역세척수가 분출되어서 윗벽(22)의 내부와 외부에 있던 이물질을 제거해주며,When the backwashing water flowing from the hollow body 20 is ejected to the slits 12 in the cylindrical side wall 10 of the cap 16 during backwashing, 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 removed more easily out of the cap 16, and the backwashing water toward the slits 24 on the upper wall 22 of the cap 16. Is ejected to remove foreign substances in the inside and outside of the upper wall (22),
중공몸체(20)의 플랜지(18)로부터도 세척수가 분출되어서 중공몸체(20)의 플랜지(18)와 접하는 바닥에 누적된 이물질도 분산, 제거해 준다.Washing water is also ejected from the flange 18 of the hollow body 20 to disperse and remove foreign matter accumulated on the bottom contacting the flange 18 of the hollow body 20.
본 발명에 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(22)쪽과, 중공몸체(20)의 플랜지(18)쪽으로도 분출되는 것이이서 캡(16)내부의 이물질을 깨끗하게 제거할 수 있는 것일 뿐만 아니라, 플랜지(18)와 접하는 바닥에 누적된 퇴적물도 제거하기 쉽게 분산시켜 줄 수 있어 역세척기능이 매우 우수하며, 캡(16)과 중공몸체(20)를 보다 견고하게 플랜지드이음할 수 있어서 내구성이 우수한 등의 장점이 있다.The strainer according to the present invention has excellent water collection 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 addition, the washing water flowing from the hollow body 20 during the back washing is ejected not only to the cylindrical side wall 10 side of the cap 16 but also to the upper wall 22 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 the accumulated deposits on the bottom in contact with the flange 18 can be easily dispersed, so the backwashing function is excellent, and the cap 16 ) And the hollow body 20 can be flanged more firmly, there is an advantage such as excellent durability.
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2000-0000928A KR100367097B1 (en) | 2000-01-10 | 2000-01-10 | A strainer used for underdrain |
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| Application Number | Title | Priority Date | Filing Date |
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| KR2020000000540U Division KR200191551Y1 (en) | 2000-01-10 | 2000-01-10 | A strainer used for underdrain |
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| KR20010068817A KR20010068817A (en) | 2001-07-23 |
| KR100367097B1 true KR100367097B1 (en) | 2003-01-14 |
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| KR2020000000540U KR200191551Y1 (en) | 2000-01-10 | 2000-01-10 | A strainer used for underdrain |
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| KR2020000000540U KR200191551Y1 (en) | 2000-01-10 | 2000-01-10 | A strainer used for underdrain |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200464222Y1 (en) | 2009-07-09 | 2013-01-09 | 주식회사 지승개발 | An a filter for biomass filtration reactor |
| KR20170000183U (en) | 2015-07-01 | 2017-01-12 | 주식회사 거성개발 | Strainer for filter basin |
Families Citing this family (5)
| 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 |
| 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 |
| 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 |
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| 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 |
| KR970064681A (en) * | 1996-03-27 | 1997-10-13 | 김현택 | Strainer for collecting device and its fusion-making device |
| KR19980061248U (en) * | 1997-03-22 | 1998-11-05 | 이종각 | Strainer for collecting block of filter paper |
| KR0150420B1 (en) * | 1995-08-25 | 1998-11-16 | 장지학 | Strainer for underdrain system |
| KR19990072567A (en) * | 1998-02-17 | 1999-09-27 | 임권신 | Strainer installed block for high rate filter bed |
| KR200162305Y1 (en) * | 1997-07-15 | 1999-12-15 | 이철환 | Strainer for filtration |
| KR200242554Y1 (en) * | 1999-05-12 | 2001-09-25 | 김현택 | A strainer of the filtering equipment |
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2000
- 2000-01-10 KR KR10-2000-0000928A patent/KR100367097B1/en not_active IP Right Cessation
- 2000-01-10 KR KR2020000000540U patent/KR200191551Y1/en not_active IP Right Cessation
Patent Citations (8)
| 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 |
| KR970064681A (en) * | 1996-03-27 | 1997-10-13 | 김현택 | Strainer for collecting device and its fusion-making device |
| 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 |
| KR19990072567A (en) * | 1998-02-17 | 1999-09-27 | 임권신 | Strainer installed block for high rate filter bed |
| KR200242554Y1 (en) * | 1999-05-12 | 2001-09-25 | 김현택 | A strainer of the filtering equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200464222Y1 (en) | 2009-07-09 | 2013-01-09 | 주식회사 지승개발 | An a filter for biomass filtration reactor |
| KR20170000183U (en) | 2015-07-01 | 2017-01-12 | 주식회사 거성개발 | Strainer for filter basin |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010068817A (en) | 2001-07-23 |
| KR200191551Y1 (en) | 2000-08-16 |
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