KR20020085698A - Raw water filtration device using filter sand - Google Patents
Raw water filtration device using filter sand Download PDFInfo
- Publication number
- KR20020085698A KR20020085698A KR1020010025360A KR20010025360A KR20020085698A KR 20020085698 A KR20020085698 A KR 20020085698A KR 1020010025360 A KR1020010025360 A KR 1020010025360A KR 20010025360 A KR20010025360 A KR 20010025360A KR 20020085698 A KR20020085698 A KR 20020085698A
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- South Korea
- Prior art keywords
- filtration
- filter
- raw water
- sand
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 238000001914 filtration Methods 0.000 title claims abstract description 66
- 239000004576 sand Substances 0.000 title claims abstract description 43
- 238000005406 washing Methods 0.000 claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 239000010802 sludge Substances 0.000 claims description 2
- 239000000356 contaminant Substances 0.000 abstract description 24
- 239000000706 filtrate Substances 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 8
- 239000010865 sewage Substances 0.000 abstract description 7
- 239000002351 wastewater Substances 0.000 abstract description 7
- 239000008213 purified water Substances 0.000 abstract description 6
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/16—Upward filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2101/00—Types of filters having loose filtering material
- B01D2101/04—Sand or gravel filters
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
본 발명은 여과사를 이용한 원수 여과장치에 관한 것으로서, 보다 구체적으로는 여과사가 내장된 여과조의 하측으로 중앙 유입관을 통해 인입된 정수나 하수, 폐수 등의 원수를 분기관을 통해 여러 갈래로 분기시켜 균등하게 인입시킨 뒤, 상향류로 여과사층을 통과시켜 오염물질이 분리된 깨끗한 여과수를 외부로 방출시키는 한편,The present invention relates to a raw water filtration device using a filtration sand, and more specifically branched raw water, such as purified water, sewage, wastewater, etc. introduced through the central inlet pipe to the lower side of the filtration tank with a built-in filtration sand through the branch pipe into several branches. And evenly drawn in, then passed through the filter sand layer in an upward flow to release clean filtered water from which contaminants have been separated,
상기 여과 과정에서 오염물질이 포착된 여과사는 압축공기와 함께 여과사 세정조로 보내져, 라비린스를 거치며 오염물질이 분리된 뒤, 세정된 여과사가 하향류하면서 여과수와 차단된 절단 원추형의 여과사 분배조를 거치게 하여 세척 및 여과효율이 상승되게 하고, 오염물질이 세정된 여과사는 다시 여과조 내로 투입되어 여과사로 반복 사용할 수 있게 함으로써,Filtrate trapped with contaminants in the filtration process is sent to the filter sand washing tank with compressed air, after the contaminant is separated through the labyrinth, the filtered filter flows down the filter cone distribution tank of the cut cone cut off with the filtered water Through the washing process, the efficiency of washing and filtration is increased, and the filtrate, which has been cleaned of contaminants, is introduced into the filtration tank so that it can be used repeatedly as a filtration sand.
여과사를 이용한 원수 여과시, 원수의 여과 과정과, 오염된 여과사의 세정 과정이 하나의 여과장치 내에서 연속적으로 순환되면서 원수를 지속적으로 여과 처리할 수 있도록 한 것이다.When filtration of raw water using a filtration sand, the filtration process of the raw water and the cleaning process of the contaminated filtration company are continuously circulated in one filtration device to continuously filter the raw water.
Description
본 발명은 여과사를 이용한 원수 여과장치에 관한 것으로서, 보다 구체적으로는 여과사가 내장된 여과조의 하측으로 중앙 유입관을 통해 인입된 정수나 하수, 폐수 등의 원수를 분기관을 통해 여러 갈래로 분기시켜 균등하게 인입시킨 뒤, 상향류로 여과사층을 통과시켜 오염물질이 분리된 깨끗한 여과수를 외부로 방출시키는 한편,The present invention relates to a raw water filtration device using a filtration sand, and more specifically branched raw water, such as purified water, sewage, wastewater, etc. introduced through the central inlet pipe to the lower side of the filtration tank with a built-in filtration sand through the branch pipe into several branches. And evenly drawn in, then passed through the filter sand layer in an upward flow to release clean filtered water from which contaminants have been separated,
상기 여과 과정에서 오염물질이 포착된 여과사는 압축공기와 함께 여과사 세정조로 보내져, 라비린스를 거치며 오염물질이 분리된 뒤, 세정된 여과사가 하향류하면서 여과수와 차단된 절단 원추형의 여과사 분배조를 거치게 하여 세척 및 여과효율이 상승되게 하고, 오염물질이 세정된 여과사는 다시 여과조 내로 투입되어 여과사로 반복 사용할 수 있게 함으로써,Filtrate trapped with contaminants in the filtration process is sent to the filter sand washing tank with compressed air, after the contaminant is separated through the labyrinth, the filtered filter flows down the filter cone distribution tank of the cut cone cut off with the filtered water Through the washing process, the efficiency of washing and filtration is increased, and the filtrate, which has been cleaned of contaminants, is introduced into the filtration tank so that it can be used repeatedly as a filtration sand.
여과사를 이용한 원수 여과시, 원수의 여과 과정과, 오염된 여과사의 세정 과정이 하나의 여과장치 내에서 연속적으로 순환되면서 원수를 지속적으로 여과 처리할 수 있도록 한 것이다.When filtration of raw water using a filtration sand, the filtration process of the raw water and the cleaning process of the contaminated filtration company are continuously circulated in one filtration device to continuously filter the raw water.
일반적으로 지금까지의 여과사를 이용한 원수 여과장치는 원수에서 오염물질을 여과시키는 과정과, 여과사에서 오염물질을 분리시키는 공정이 이원화되어 이루어졌기 때문에, 원수 처리 시간이 많이 소요되고, 그에 따라 많은 용량을 처리할 수 있는 규모가 큰 원수 처리 시설과 함께, 처리 비용이 많이 요구되는 결함이 있었다.In general, the raw water filtration device using the filter sand thus far takes a lot of raw water treatment time because the process of filtering contaminants from the raw water and the process of separating the contaminants from the filter water are dual. Along with the large raw water treatment facilities that can handle the capacity, there are defects that require high treatment costs.
본 발명은 이와 같은 종래의 여과사를 이용한 원수 여과장치가 갖고 있는 제반 문제점을 감안하여, 여과사가 내장된 여과조의 하측으로 중앙 유입관을 통해 인입된 정수나 하수, 폐수 등의 원수를 분기관을 통해 여러 갈래로 분기시켜 균등하게 인입되도록 하고, 상기 여과 과정에서 오염물질이 포착된 여과사는 압축공기와 함께 여과사 세정조로 보내져, 라비린스를 거치며 오염물질이 분리된 뒤, 세정된 여과사가 하향류하면서 여과수와 차단된 절단 원추형의 여과사 분배조를 거치게 하여 세척 효율을 높힐 수 있도록 연구된 것으로써,The present invention, in view of the problems of the conventional raw water filtration device using the filtration sand, the branch pipe to the raw water such as purified water, sewage, waste water, etc. introduced through the central inlet pipe to the lower side of the filtration tank containing the filtration sand Through the branching through the branch to be introduced evenly, and the contaminants trapped in the filtration process is sent to the filtrate washing tank with compressed air, the contaminant is separated through the labyrinth, and then the filtered filter flows downward It was studied to increase the washing efficiency by passing through the filter cone distribution tank of the cutting cone cut off the filtered water,
본 발명은 여과사를 이용한 정수나 하수, 폐수 등의 원수 여과시, 원수의 여과 과정과, 오염된 여과사의 세정 과정이 하나의 여과장치 내에서 연속적으로 순환되면서 원수를 지속적으로 여과 처리할 수 있도록 함으로써, 처리 시설을 최대한 소규모로 하여 설치 및 운용 비용을 절감시킬 수 있게 하는 보다 효율적인 원수 여과장치를 제공하는 데에 그 목적이 있다.The present invention is to filter the raw water, such as purified water, sewage, wastewater, using the filtration sand, filtration process of the raw water, and the cleaning process of the contaminated filtration company to continuously filter the raw water while continuously circulating in one filtration device The aim is to provide a more efficient raw water filtration device that can reduce installation and operating costs by making the treatment facility as small as possible.
이를 위하여 본 발명은 여과사가 내장된 여과조의 하측으로 중앙 유입관을 통해 인입된 정수나 하수, 폐수 등의 원수를 분기관을 통해 여러 갈래로 분기시켜 균등하게 인입시킨 뒤, 상향류로 여과사층을 통과시켜 오염물질이 분리된 깨끗한 여과수를 외부로 방출시키는 한편,To this end, the present invention branched the raw water, such as purified water, sewage, wastewater, etc. introduced through the central inlet pipe into the lower side of the filter tank with a built-in filter sand in several branches through the branch pipe, evenly introduced, the filter sand layer in the upward flow Pass through and release clean filtered water from which contaminants are separated,
상기 여과 과정에서 오염물질이 포착된 여과사는 압축공기와 함께 여과사 세정조로 보내져, 라비린스를 거치며 오염물질이 분리된 뒤, 세정된 여과사가 하향류하면서 여과수와 차단된 절단 원추형의 여과사 분배조를 거치게 하여 세척 및 여과 효율이 상승되게 하고, 오염물질이 세정된 여과사는 다시 여과조 내로 투입되어 여과사로 반복 사용할 수 있게 함으로써,Filtrate trapped with contaminants in the filtration process is sent to the filter sand washing tank with compressed air, after the contaminant is separated through the labyrinth, the filtered filter flows down the filter cone distribution tank of the cut cone cut off with the filtered water Through the washing process, the washing and filtration efficiency is increased, and the contaminant-washed filtrate is fed back into the filter tank so that it can be repeatedly used as the filtrate.
여과사를 이용한 원수 여과시, 원수의 여과 과정과, 오염된 여과사의 세정 과정이 하나의 여과장치 내에서 연속적으로 순환되면서 원수를 지속적으로 여과 처리할 수 있도록 한 것을 특징으로 한다.When filtering the raw water using the filter sand, the filtration process of the raw water and the cleaning process of the contaminated filter yarn is continuously circulated in one filtration device, characterized in that the raw water can be continuously filtered.
특히 본 발명은 상기 여과사의 세정과정에 있어서, 세정조의 바닥으로 부터 상승된 여과수로 여과사를 보다 깨끗하게 세척하기 위하여 여러개의 경사면을 교차시켜 오염된 여과사와 여과수가 충분히 접촉될 수 있는 구조와 함께, 역세척의 효율을 충분히 하기 위하여 여러개의 경사면이 교차되어진 라비린스를 장착하여 하향하는 모래와 상향류의 여과수가 서로 교차 접촉되도록 하고, 세정된 여과사가 하향류할 때, 여과수와 차단된 절단 원추형의 여과사 분배조를 거치게 하여 세척 및 여과 효율이 크게 상승되도록 한 데에 그 특징이 있다.In particular, the present invention in the cleaning process of the filtrate, with a structure that can be in contact with the contaminated filtrate and the filtrate sufficiently by crossing a plurality of slopes in order to clean the filtrate more cleanly with the filtered water raised from the bottom of the washing tank, To ensure efficient backwashing, the labyrinth with multiple inclined planes is fitted so that the downward sand and upstream filtrate cross contact each other. It is characterized in that the washing and filtration efficiency is greatly increased by passing through the four distribution tanks.
도 1 은 본 발명의 바람직한 일실시예의 내부 구조를 나타낸 측면도,1 is a side view showing the internal structure of a preferred embodiment of the present invention,
도 2 는 동 평면도,2 is a plan view of the same,
도 3 은 본 발명의 원수 분기관의 부분 발췌 평면도 및 정면도.Figure 3 is a partial plan view and front view of the raw water branching pipe of the present invention.
이하 본 발명을 첨부 도면을 참조하여 구체적으로 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1 은 본 발명의 바람직한 일실시예의 내부 구조를 나타낸 측면도이고, 도 2 는 동 평면도, 도 3 은 본 발명의 원수 분기관의 부분 발췌 평면 및 정면도로서, 본체(1)의 상측 중심부로 정수나 하수, 폐수 등의 원수가 인입되는 중앙 유입관(2)이 설치되어 있고, 그 하단부에는 수개의 원수 분기관(3)이 방사상으로 장착되어 있으며, 다시 그 저면에 원뿔형의 여과사 유도판(4)이 장착된 호퍼(5)가 연결되어 있다.Figure 1 is a side view showing the internal structure of a preferred embodiment of the present invention, Figure 2 is a plan view of the same, Figure 3 is a partial extraction plan and front view of the raw water branch pipe of the present invention, the upper center of the main body (1) The central inlet pipe 2 into which raw water, such as sewage and wastewater, is introduced is provided, and at its lower end, several raw water branch pipes 3 are radially mounted, and at the bottom thereof, a conical filter sand guide plate 4 Hopper (5) is connected.
그리고 이 호퍼(5)의 바닥 중심부에는 일측에 압축공기관(6)이 연결 장착된 여과사 배출관(7)이 연결되어 본체(1)의 상단 내측벽에 설치된 여과사 배출노즐(8)과 연결되어 상기 압축공기관(6)에서 공급된 압축공기와 함께, 오염된 여과사(9)를 여과사 세정조(10)로 분사되게 되어 있다.And the bottom center of the hopper (5) is connected to the filter yarn discharge pipe (7) having a compression air pipe (6) attached to one side connected to the filter yarn discharge nozzle (8) installed on the upper inner wall of the main body (1) Together with the compressed air supplied from the compressed air engine 6, the contaminated filtered sand 9 is sprayed into the filtered sand cleaning tank 10.
그리고 이 여과사 세정조(10)는 하측부에 여러개의 경사면(11)이 교차되어 이루어진 라비린스(12)가 장착되어 내부에 가이드판(13)이 설치된 상하대칭의 절단원추형의 여과사 분배조(14)와 연결되어 그 하측의 여과층(15)과 연결되고, 좌측부에는 오니, 세척수 배출관(16)이 연결되어 외부로 인출되게 되어 있다.The filter yarn cleaning tank 10 is equipped with a labyrinth 12 having a plurality of inclined surfaces 11 intersected at a lower side thereof, and a vertically symmetrical cut cone-shaped filter yarn distribution tank having a guide plate 13 installed therein ( 14) is connected to the lower filtration layer 15, the sludge on the left side, the washing water discharge pipe 16 is connected to be drawn out.
한편, 상기 본체(1)의 상단 우측에는 여과수 토출관(17)이 형성되어 오염물질이 분리된 여과수를 외부로 토출시키게 되어 있다.On the other hand, the upper right side of the main body 1 is formed with a filtered water discharge pipe 17 to discharge the filtered water from which contaminants are separated.
도면 중, 미설명 부호 20은 여과사를 교체시킬 때 사용되는 드레인 밸브이고, 21은 오버 플로우관이며, 22는 차압 체크를 위한 레벨 게이지이다.In the figure, reference numeral 20 denotes a drain valve used to replace the filter sand, 21 an overflow pipe, and 22 a level gauge for checking the differential pressure.
이와 같이 구성된 본 발명의 여과사를 이용한 원수 여과장치는 정수나 하수, 폐수 등의 원수 여과시, 먼저, 원수가 중앙유입관(2)을 통하여 본체(1)내로 유입되어 원수 분기관(3)에 이르면, 원수가 방사상으로 분기된 원수분기관(3)을 통하여 본체(1)의 내주연부로 균등하게 분기되어 인입된다.In the raw water filtration device using the filter sand of the present invention configured as described above, when filtration of raw water such as purified water, sewage, and waste water is performed, first, raw water is introduced into the main body 1 through the central inlet pipe 2 so that the raw water branch pipe 3 is provided. When the raw water reaches, the raw water is evenly branched into the inner circumferential edge of the main body 1 through the radially branched raw water distributor 3.
인입된 원수는 여과사(9)가 적층된 여과층(15)을 상향류로 통과하면서 원수내에 포함된 오염 물질이 여과사(9)에 의하여 포착되게 되고, 이렇게 오염 물질이 분리 제거된 깨끗한 여과수는 계속 상승하여 여과수 토출관(17)을 통하여 외부로 방출된다.The incoming raw water passes upward through the filtration layer 15 on which the filtrate sand 9 is stacked, and contaminants contained in the raw water are captured by the filtrate sand 9. Continues to rise and is discharged to the outside through the filtered water discharge pipe (17).
한편, 상기 여과층(15) 내의 여과사(9)는 상기 원수 여과 과정에서 오염 물질이 포착된 상태에서 여과사 유도판(4)과 호퍼(5)를 타고 하강하여 하단부에 형성된 여과사 배출관(7)을 통해 상승하여 본체(1)의 상단 내측벽에 설치된 여과사 배출 노즐(8)을 거쳐 여과사 세정조(10)로 보내지게 되는데, 상기 여과사 배출관(7)에는 압축공기가 공급되어 오염된 여과사(9)가 여과사 배출 노즐(8)에서 공기와 함께 고압 분사되도록 되어 있다.On the other hand, the filter yarn (9) in the filtration layer (15) is lowered through the filter yarn guide plate (4) and the hopper (5) in the state of contaminants trapped in the raw water filtration process (filter filter discharge pipe formed in the lower end ( 7) through the filter sand discharge nozzle (8) installed in the upper inner wall of the upper body 1 is sent to the filter sand cleaning tank 10, the compressed air discharge pipe 7 is supplied with compressed air The contaminated filtered yarn 9 is adapted to be injected at high pressure with air at the filtered yarn discharge nozzle 8.
이와 같이 여과사 세정조(10)로 분사된 오염된 여과사(9)는 상기 라비린스(12)를 거쳐 여과사 세정조(10)로 유입되는 세척수에 의하여 여과사(9)에서 오염물질인 부유 고형물이 분리되어지고, 분리된 부유 고형물은 세척수에 섞여 오니, 세척수 배출관(16)을 통하여 외부로 배출되고, 오염물질이 1차 분리된 여과사(9)는 하강하여 역세척의 효율을 높이기 위해 여러개의 경사면이 교차되어 이루어진 라비린스(12)에서 상승 유입되는 세척수와 서로 충분히 교차 접촉되면서 2차세척이 연속적으로 이루어진 뒤, 다시 절단 원추형의 여과사 분배조(14)의 가이드판(13)에 의하여 감속되어 느린 유속으로 하강하면서 상향류의 세척수에 의해 잔존하는 오염물질이 3차 헹굼 세척을 거치며 제거됨으로써, 완전히 깨끗한 여과사(9)로 탈바꿈되어 본체(1) 내의 여과층(15)으로 재투여되어 여과사(9)로 반복 사용되게 된다.As such, the contaminated filtered sand 9 injected into the filtered sand cleaning tank 10 is suspended in the filtered sand 9 by washing water flowing through the labyrinth 12 into the filtered sand cleaning tank 10. The solids are separated, and the suspended solids are mixed with the washing water, and discharged to the outside through the washing water discharge pipe 16, and the filter sand 9, in which the pollutants are separated first, is lowered to increase the efficiency of backwashing. In the labyrinth 12 formed by the crossing of several inclined surfaces, the secondary washing is continuously performed while being sufficiently cross-contacted with the rising inflow water, and then again by the guide plate 13 of the filter cone distribution tank 14 of the cutting cone. The contaminants remaining by the upstream washing water while being decelerated and slowed down are removed by the third rinse washing, and are thus converted into completely clean filter sand 9 to the filtration layer 15 in the main body 1. It is re-administered and used repeatedly by the filtration yarn 9.
따라서 이와 같은 본 발명의 여과장치에 의하면, 종래 원수의 여과 과정과 여과사의 세정과정이 이원화되어 비효율적으로 이루어지던 하수처리 방식에서 탈피하여, 원수에서 오염물질을 분리하여 깨끗한 물을 수득하는 원수의 여과 과정과, 오염된 여과사에서 다시 오염물질을 분리시켜 깨끗한 여과사를 수득하는 여과사의 세정과정이 하나의 여과장치 내에서 연속적으로 순환되면서 원수를 지속적으로 여과 처리할 수 있게 됨으로써, 보다 적은 시설과 운용비용으로 보다 많은 용량의 원수를 효과적으로 여과 처리할 수 있는 장점과 함께,Therefore, according to the filtration device of the present invention, the filtration process of the raw water to remove the pollutants from the raw water to obtain clean water by separating the contaminants from the raw water filtration process of the raw water and the filtration process of the filtration company was dualized inefficient. The process of filtration of the filtrate, which separates contaminants from the contaminated filtrate again to obtain a clean filtrate, can be continuously circulated in one filter unit, allowing continuous filtration of raw water, Along with the advantages of running water more efficiently, the cost of running
여과사가 내장된 여과조의 하측으로 중앙 유입관을 통해 인입된 원수를 분기관을 통해 여러 갈래로 분기시켜 균등하게 인입시킨 뒤, 상향류로 여과사층을 통과시켜 오염물질이 분리된 깨끗한 여과수를 외부로 방출시키는 한편,The raw water introduced through the central inlet pipe into the lower part of the filter tank with the built-in filter sand is branched into several branches through the branch pipe and drawn in evenly, and then passed through the filter sand layer in the upstream to remove the clean filtered water from which contaminants are separated. While releasing
상기 여과 과정에서 오염물질이 포착된 여과사는 압축공기와 함께 여과사 세정조로 보내져, 라비린스를 거치며 오염물질이 분리된 뒤, 세정된 여과사가 하향류하면서 여과수와 차단된 절단 원추형의 여과사 분배조를 거치게 하여 세척 및 여과효율을 크게 높힐 수 있는 효과가 있다.Filtrate trapped with contaminants in the filtration process is sent to the filter sand washing tank with compressed air, after the contaminant is separated through the labyrinth, the filtered filter flows down the filter cone distribution tank of the cut cone cut off with the filtered water By going through the effect can greatly increase the washing and filtration efficiency.
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| KR1020010025360A KR20020085698A (en) | 2001-05-09 | 2001-05-09 | Raw water filtration device using filter sand |
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| KR2020010013721U Division KR200242171Y1 (en) | 2001-05-10 | 2001-05-10 | Raw water filtration device using filter sand |
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| KR100917661B1 (en) * | 2008-02-26 | 2009-09-18 | (주) 코리아 인바이텍 | Water filtration device with filtration screen |
| CN102772929A (en) * | 2011-05-13 | 2012-11-14 | 青岛国电蓝德环境工程有限公司 | Upward flow stationary bed filter unit and method for producing same |
| KR101516726B1 (en) * | 2013-11-22 | 2015-05-04 | 이전웅 | Up-flow gravity continuous filter |
| CN111167192A (en) * | 2018-11-12 | 2020-05-19 | 帕克环保技术(上海)有限公司 | Sand filtering device |
| CN111659165A (en) * | 2020-06-19 | 2020-09-15 | 广东石油化工学院 | Low-energy-consumption treatment device and treatment method for mariculture sewage |
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| KR100917661B1 (en) * | 2008-02-26 | 2009-09-18 | (주) 코리아 인바이텍 | Water filtration device with filtration screen |
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| CN111659165A (en) * | 2020-06-19 | 2020-09-15 | 广东石油化工学院 | Low-energy-consumption treatment device and treatment method for mariculture sewage |
| CN111659165B (en) * | 2020-06-19 | 2023-04-25 | 广东石油化工学院 | Low energy consumption treatment device and treatment method for mariculture sewage |
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