KR100756820B1 - Bottom collecting device which can be backwashed by water and air - Google Patents

Bottom collecting device which can be backwashed by water and air Download PDF

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Publication number
KR100756820B1
KR100756820B1 KR1020070006749A KR20070006749A KR100756820B1 KR 100756820 B1 KR100756820 B1 KR 100756820B1 KR 1020070006749 A KR1020070006749 A KR 1020070006749A KR 20070006749 A KR20070006749 A KR 20070006749A KR 100756820 B1 KR100756820 B1 KR 100756820B1
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South Korea
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air
block
filtration block
filtration
water
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KR1020070006749A
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Korean (ko)
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김원기
곽영숙
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김원기
(주)제일씨피씨
정문헌
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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
    • B01D24/14—Downward filtration, the container having distribution or collection headers or pervious conduits
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters

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  • 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 여과블럭의 경사면 상부에 가늘고 긴 통기공이 형성되도록 하고, 상기 여과블럭의 안쪽 상부에는 에어챔버가 여과블럭의 길이방향으로 고정되어 설치되도록 하되, 상기 에어챔버의 상단에는 공기주입관이 연결되도록 하고, 상기 공기주입관은 공기공급관에 연결되도록 함으로써 각 여과블럭 내부에 공기를 공급하고 통기공을 통해 공기가 배출되면서 머드볼의 파쇄가 이루어질 수 있도록 구성되어진 물과 공기의 역세척이 가능한 하부집수장치를 제공하기 위한 것으로, 본 발명은 여과블럭 내의 상부에 통기공과 에어챔버를 형성하고, 상기 공기공급관에 의해 공급되는 공기가 역세척을 위한 물과 함께 분사되면서 여과사의 세척이 이루어지도록 함으로써 세척 효율을 향상시키고 공기의 공급으로 인해 물(역세척)의 소비량을 감소시키는 효과를 갖는다.According to the present invention, a thin and long vent is formed in the upper part of the inclined surface of the filtration block, and the air chamber is installed in the upper part of the filtration block in the longitudinal direction of the filtration block. The air inlet pipe is connected to the air supply pipe to supply air to each filter block, and the air is discharged through the air vents so that the mud ball can be crushed to be backwashed. In order to provide a lower collecting device, the present invention forms a vent and an air chamber in the upper portion of the filtration block, by allowing the air supplied by the air supply pipe is sprayed with water for backwashing to wash the filter yarn Improve cleaning efficiency and reduce water consumption due to air supply And it has a.

또한 본 발명은 V-블럭을 사용하는 여과지의 하부집수장치를 그대로 활용할 수 있는 구조를 갖는 것이어서 국가적으로도 매우 큰 이익을 얻을 수 있는 매우 유용한 발명인 것이다.In addition, the present invention is to have a structure that can utilize the lower collecting device of the filter paper using the V-block as it is a very useful invention that can obtain a very large national benefits.

Description

물과 공기에 의해 역세척이 가능한 하부집수장치{Water catchment equipment capable of backwashing by water and air}Water catchment equipment capable of backwashing by water and air}

도 1 - 종래의 하부집수장치를 도시한 단면도.1-a cross-sectional view showing a conventional lower collecting device.

도 2 - 본 발명 하부집수장치의 사시도.2-a perspective view of the present invention the lower collecting device.

도 3 - 본 발명 하부집수장치의 일부분을 확대해서 도시한 참고도.3 is an enlarged reference view of a part of the present invention the lower collecting device.

도 4 - 본 발명의 작용상태를 보이기 위한 단면도.4-a cross-sectional view for showing an operating state of the present invention.

도 5 - 도 4에 있어서 여과블럭부분을 확대도시한 참고도.5 to 4 are enlarged reference views showing the filtration block portion.

도 6 - 본 발명 하부집수장치의 다른 실시예를 도시한 사시도.6 is a perspective view showing another embodiment of the present invention the lower collecting device.

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

1: 여과지 2: 여과층1: filter paper 2: filter layer

3: 여과블럭 3a: 통수공3: filtration block 3a: water hole

10: 공기공급관 11: 공기주입관10: air supply pipe 11: air injection pipe

20: 에어챔버 21: 공기배출구멍20: air chamber 21: air discharge hole

22: 고정대 100: 여과블럭22: holder 100: filtration block

101: 경사면 102: 바닥면101: slope 102: bottom

103: 통수공(通水孔) 104: 스트레이너103: water hole 104: strainer

110: 통기공(通氣孔) 120: 평활면110: ventilation hole 120: smooth surface

121: 공기주입공 A: 여과층121: air injection hole A: filtration layer

본 발명은 여과지에서 역세척시 물과 공기의 균등배분이 이루어지게 하는 여과지 하부집수장치에 관한 것으로, 더욱 상세하게는 통기공을 구비하는 여과블럭의 안쪽 상부에 에어챔버를 고정하고, 상기 에어챔버에는 공기공급관과 공기주입관을 통해 공기공급장치로 부터 공급된 공기가 유입되도록 하여 역세척시 공기도 함께 배출되도록 함으로써 여과지의 역세척 효율을 증대시킬 수 있도록 한 여과지 하부집수장치에 관한 것이다.The present invention relates to a filter paper lower collecting device for equally distributing water and air during backwashing in a filter paper, and more particularly, to fix an air chamber to an inner upper portion of a filter block including a vent hole, and to maintain the air chamber. The present invention relates to a filter paper lower collecting device for increasing the backwashing efficiency of the filter paper by allowing the air supplied from the air supply device to flow through the air supply pipe and the air injection pipe so that the air is also discharged during the backwashing.

일반적으로 정수장은 착수정, 응집지, 침전지, 여과지 순으로 이루어지며, 여과지는 침전지에서 침전되지 않은 이물질들을 제거하기 위한 정수장 시설의 최후 보루이기도 하다. 상기 여과지(1)의 구성은 도 1에 도시된 바와 같이 대개 위에서부터 가는모래, 굵은모래, 가는자갈, 굵은자갈 순으로 적층되어 여과층(2)이 형성되며, 상기 굵은자갈 아래에는 정수된 물이 흐를수 있도록 통로 역활을 하는 여과 블럭(3)이 형성되어 진다.In general, the water treatment plant consists of a water well, a flocculation basin, a sedimentation basin, and a filter basin, and the filter basin is also the last bulwark of the water purification plant to remove foreign matter that has not settled in the sedimentation basin. As shown in FIG. 1, the filter paper 1 is generally stacked in the order of fine sand, coarse sand, fine gravel, and coarse gravel from the top to form a filtration layer 2, and purified water under the coarse gravel. A filtration block 3 is formed to act as a passage so that it can flow.

상기와 같은 여과블럭(3)에 의해 형성되는 여과지 하부집수장치는 그루우브(groove) 형태의 집수실에 의해 각각의 여과블럭의 일측 입구와 연통(連通)되어져 정수된 물이 각 가정으로 전해질 수 있도록 한다.The filter paper lower collecting device formed by the filter block 3 as described above is in communication with one inlet of each filter block by a groove-type collecting chamber so that purified water can be transferred to each household. Make sure

그러나 여과지는 오랫동안 정수를 하다 보면 여과층(2)에 이물질이 끼게되어 여과저항이 증가하게 되는데, 이는 정수효율을 떨어드리는 요인이 되므로 종래 물을 역으로 분사해서 여과층(2)을 세척할 수 있도록 하고 있다. 이를 역세척이라고 하는데, 상기 역세척 방법은 원수의 유입을 차단하고 상기 집수실에 연결된 역세척 펌핑장치에 의해 고압의 물을 분사함으로써 여과블록(3)의 통수공(3a)를 통해 세척수가 역으로 분출되면서 여과층(2) 사이를 뚫고 올라가게 되며, 이처럼 역류하는 과정 중에 여과층(2)의 틈새에 끼어있는 이물질들이 부유하면서 제거되어지는 것이다.However, when the filter paper is purified for a long time, foreign matter is caught in the filter layer 2, which increases the filter resistance, which causes a decrease in water purification efficiency, so that the filter layer 2 can be washed by spraying water backwards. To make it work. This is called backwashing. The backwashing method blocks the inflow of raw water and injects the high pressure water by the backwashing pumping device connected to the collection chamber to reverse the washing water through the water hole 3a of the filtration block 3. As it is ejected into the filtration layer (2) to go up, and the like, the foreign matter stuck in the gap of the filtration layer (2) during the reverse flow process is removed while floating.

그러나 상기한 바와 같이 물에 의해서만 역세척할 경우 그 효율이 현저하게 떨어지는 단점을 갖는 것이어서 최근에는 물과 함께 공기를 분사할 수 있도록 하는 역세척 방법이 널리 활용되고 있으나, 상기한 공기와 물 혼합분사식 역세척방법은 유공블럭형, 유공관형, 다공판형 등에만 활용되고 있을 뿐, 여과블럭(V블럭)의 경우에는 공기를 분사할 수 있는 구조는 지금까지 안출된 바 없는 실정이며, 종래 V-블록타입의 여과지 하부 구조를 그대로 활용하면서도 물과 공기를 동시에 사용하는 역세척을 가능하게 함으로써 여과층의 세척 효율을 향상시킬 수 있는 여과지 하부집수장치의 개발이 매우 시급한 실정이다.However, as described above, when backwashing only by water, the efficiency is remarkably deteriorated. In recent years, a backwashing method for injecting air together with water has been widely used, but the above-described air and water mixing spray method The backwashing method is used only for the hole block type, the hole tube type, and the porous plate type. In the case of the filtration block (V block), the structure capable of injecting air has not been devised until now. It is very urgent to develop a filter paper bottom collecting device that can improve the washing efficiency of the filter layer by enabling backwashing using water and air at the same time while utilizing the type of filter paper bottom structure as it is.

이처럼 본 발명은 종래의 V-블록 타입의 하부집수장치를 개선하기 위해 창안된 것으로, 여과블럭의 경사면 상부에는 가늘고 긴 통기공이 형성되도록 하고, 상기 여과블럭의 안쪽 상부에는 에어챔버가 여과블럭의 길이방향으로 고정되어 형성되도록 하되, 상기 에어챔버의 상단에는 공기주입관이 연결되도록 하고, 상기 공기주입관은 공기발생장치와 연결되는 공기공급관에 연결되도록 함으로써 각 여과블럭 내부에 공기를 공급할 수 있도록 하고 이로인해 물과 공기의 역세척이 가능한 하부집수장치를 제공하는 데 그 목적이 있다.As such, the present invention was devised to improve a conventional V-block type lower collecting device, and a thin and long vent is formed on the inclined surface of the filtration block. It is fixed in the longitudinal direction, the upper end of the air chamber is connected to the air injection pipe, the air injection pipe is connected to the air supply pipe connected to the air generating device to supply air to each filter block The purpose is to provide a bottom collecting device capable of backwashing water and air.

이하 첨부된 도면에 의해 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 여과블럭(100)의 경사면(101) 상부에 가늘고 긴 통기공(110)이 형성되도록 하고, 상기 여과블럭(100)의 안쪽 상부에는 에어챔버(20)가 여과블럭의 길이방향으로 고정되어 형성되도록 하되, 상기 에어챔버(20)의 상단에는 공기주입관(11)이 연결되도록 하고, 상기 공기주입관(11)은 공기공급관(10)에 연결되도록 함으로써 각 여과블럭(100) 내부에 공기를 공급할 수 있게 된다.According to the present invention, an elongated vent hole 110 is formed on the inclined surface 101 of the filtration block 100, and the air chamber 20 is fixed in the longitudinal direction of the filtration block in the upper portion of the filtration block 100. To be formed, but the upper end of the air chamber 20 is connected to the air injection pipe 11, the air injection pipe 11 is connected to the air supply pipe 10 by each filter block 100 inside It can supply air.

상기 공기공급관(10)은 미도시된 공기발생장치와 연결되어지는데, 여과지 벽체에서 여과층을 거쳐 공기주입관(11)에 연결된다. 이때 상기 공기발생장치는 일반적으로 사용되는 송풍장치나 컴프레셔 등이 사용될 수도 있다.The air supply pipe 10 is connected to the air generator not shown, and is connected to the air injection pipe 11 through the filter layer on the filter paper wall. In this case, a blower or a compressor, which is generally used, may be used as the air generator.

이때 상기 공기공급관(10)은 여과블럭(100) 위에 적층되는 여과층을 지나도록 하여 별도의 지지장치 없이도 고정설치가 가능하게 된다.In this case, the air supply pipe 10 passes through the filtration layer stacked on the filtration block 100 so that it can be fixedly installed without a separate support device.

또 상기 공기공급관(10)은 다수개의 공기주입관(11)이 연결되어지는데, 상기 공기주입관(11)은 여과블럭(100)의 안쪽 상부에 형성된 에어챔버(20)에 다시 연결된 구조를 갖는다.In addition, the air supply pipe 10 is connected to a plurality of air injection pipe 11, the air injection pipe 11 has a structure connected back to the air chamber 20 formed on the inner upper portion of the filter block 100. .

상기 여과블럭(100)은 양측으로 대칭되도록 경사진 한 쌍의 경사면(101)과, 상기 경사면(101)에 일정간격으로 천공된 다수개의 통수공(103)을 구비하고, 상기 통수공(103)의 상부에는 가늘고 긴 통기공(110)이 여과블럭의 길이방향으로 형성된 구조를 갖는다.The filtration block 100 includes a pair of inclined surfaces 101 which are inclined to be symmetrical to both sides, and a plurality of through holes 103 perforated at predetermined intervals on the inclined surface 101, and the through holes 103 At the top of the elongated vent hole 110 has a structure formed in the longitudinal direction of the filtration block.

이때 통수공(103)의 상부에 통기공(110)을 형성하는 이유는 공기는 물위에 뜨는 현상을 이용하여 물과 공기의 압력을 균등하게 조절되도록 할 뿐만 아니라 물과 공기의 배출을 모두 용이하게 하기 위한 것이다.At this time, the reason for forming the vent hole 110 in the upper portion of the air hole 103 is that the air floats on the water to not only equally regulate the pressure of water and air, but also to easily discharge both water and air It is to.

또한 본 발명에 있어 통기공(110)을 여과블럭의 길이방향으로 가늘고 길게 형성하는 이유는 공기의 배출이 균일하게 이루어지고, 서서히 배출될 수 있도록 하기 위한 것이다.In addition, in the present invention, the reason for forming the vent hole 110 thin and long in the longitudinal direction of the filtration block is to allow the air to be discharged uniformly and to be discharged gradually.

이때 상기 여과블럭(100)은 내식성이 양호하고 충격에 강한 금속판을 절곡 또는 용접하여 형성하되 단면의 형상은 한 쌍의 경사면(101)과 바닥면(102)에 의해 거의 삼각형상을 이루며 상기 경사면(101)에 일정간격 천공된 통수공(103)에 각 스트레이너(104)가 결합되어 형성된 여과블럭(100)을 사용함이 바람직하다.At this time, the filtration block 100 is formed by bending or welding a metal plate having good corrosion resistance and strong impact, and has a cross-sectional shape substantially triangular by a pair of inclined surfaces 101 and a bottom surface 102. It is preferable to use a filtration block 100 formed by coupling the respective strainers 104 to the through-holes 103 drilled at a predetermined interval.

또 상기 여과블럭(100)의 상부는 공기주입관(11)의 체결이 용이하도록 하기 위해서 그 상부는 평평하게 형성된 평활면(120)을 구성할 수도 있으며, 이때 상기 평활면(120)의 끝단부에는 상기 공기주입관(11)이 통과하도록 구성되어진다.In addition, the upper portion of the filtration block 100 may be configured to form a smooth surface 120 is formed in the upper portion in order to facilitate the fastening of the air injection pipe 11, the end of the smooth surface 120 at this time The air injection pipe 11 is configured to pass through.

상기 공기주입관(11)은 여과블럭(100) 내부 상부에 형성된 에어챔버(20)에 연결되어 지는데, 상기 에어챔버(20)는 여과블럭(100)의 안쪽 상부에 길이방향으로 고정되어지는데, 이때 에어챔버(20)를 여과블럭(100)에 직접 용접에 의해 고정시킬 수도 있고, 에어챔버(20)를 고정대(22)에 의해 설치될 수도 있다.The air injection pipe 11 is connected to the air chamber 20 formed in the upper portion of the filtration block 100, the air chamber 20 is fixed in the longitudinal direction on the inner upper portion of the filtration block 100, In this case, the air chamber 20 may be fixed to the filtration block 100 by welding, or the air chamber 20 may be installed by the fixing table 22.

본 발명에서 에어챔버(20)라 함은 공기분배를 균일하게 할 수있는 파이프를 의미하며, 이는 여과블럭(100)을 따라 길이방향으로 길게 형성되는 것이어서 다수개의 공기배출구멍(21)을 통해 균일한 공기가 배출되도록 하는데 필요한 구성이다.In the present invention, the air chamber 20 refers to a pipe capable of uniformly distributing air, which is formed in the longitudinal direction along the filtration block 100 to be uniform through a plurality of air discharge holes 21. It is the configuration required to allow one air to be released.

이처럼 상기 공기배출구멍(21)을 통해서 분사되는 공기는 여과블럭(100)의 상부에 머물렀다가 어느정도 공기의 압력이 차게되면 통기공(110)을 통해 외부로 배출되어지며, 이때 여과층의 여과재들 사이를 통과하면서 머드볼를 깨는 효과를 발휘하게 되어 물로 인한 역세척의 효과를 더욱 크게 할 수 있는 것이다.As such, the air injected through the air discharge hole 21 stays on the upper part of the filtration block 100 and is discharged to the outside through the vent hole 110 when the air pressure is somewhat filled, and the filter media of the filtration layer The effect of breaking the mudball as it passes through can increase the effect of backwashing with water.

이때 통기공(110)의 위치는 에어챔버(20)의 공기배출구멍(21)보다 아래에 형성되도록 함이 바람직하며, 이는 공기공급관(10)에 의해 공급된 공기가 여과블럭(100) 내에 어느 정도 충진되었다가 통기공(110)의 위치에 이를 경우 공기가 배출되도록 하기 위한 것이다.At this time, the location of the vent hole 110 is preferably to be formed below the air discharge hole 21 of the air chamber 20, which is the air supplied by the air supply pipe (10) in the filter block 100 It is to ensure that the air is discharged when the degree is filled to reach the position of the vent (110).

따라서 역세척시 공기압과 수압을 적당량 균일하게 조절할 필요가 있다. 왜냐하면 공기압이 너무 클 경우 역세척을 위한 물의 배출이 용이하지 못하게 되며, 또한 수압이 너무 클 경우에는 오히려 공기배출구멍(21)을 통해 에어챔버(20)에 물 이 충진될 수도 있기 때문이다.Therefore, it is necessary to uniformly adjust the appropriate amount of air pressure and water pressure during backwashing. This is because if the air pressure is too large, it is not easy to discharge water for backwashing, and if the water pressure is too large, water may be filled in the air chamber 20 through the air discharge hole 21.

상기와 같이 구성된 본 발명 여과지 하부집수장치 구조의 작용상태를 상세히 설명하면 다음과 같다.Referring to the operation state of the filter paper lower collecting device structure configured as described above in detail as follows.

여과지는 오랫동안 정수를 하다 보면 여과층(A)에 이물질, 즉 머드볼(Mud Ball)이 형성되기 마련이고, 이로 인해 여과저항이 증가하게 되는데, 이는 물과 공기를 함께 역으로 품는 역세척 방법에 의해 제거되어 진다.If the filter paper is purified for a long time, foreign matter, that is, mud ball, is formed in the filter layer (A), thereby increasing the filtration resistance, which is a reverse washing method in which water and air are inversely held together. To be removed.

이때 여과지의 하부에 위치한 여과블럭(100)의 통수공(103)을 통해서 역세척이 여과층으로 분사되고, 이와 함께 여과지의 송풍장치나 공기급공장치에 연결된 공기공급관(10,10a)을 통해서 여과블럭(100) 내의 상부에 위치한 에어챔버(20)를 통해서 공기를 분사하게 되고, 그 공기는 여과블럭(100)의 통기공(110)을 통해서 여과층에 공급되어 진다.At this time, the back washing is injected into the filtration layer through the through hole 103 of the filter block 100 located at the lower part of the filter paper, and together with the air supply pipes 10 and 10a connected to the blower or the air supply device of the filter paper. Air is injected through the air chamber 20 located in the upper portion of the block 100, the air is supplied to the filtration layer through the vent hole 110 of the filtration block 100.

따라서 상기 여과블럭(100) 내에는 역세척에 의해 생성되는 수압과, 에어챔버(20)의 공기배출구멍(21)을 통해서 분사되는 공기에 의해 여과층(A)의 머드볼가 깨지면서 여과사의 세척이 이루어지게 되는 것이다.Therefore, in the filtration block 100, the mud ball of the filtration layer A is broken by the water pressure generated by backwashing and the air injected through the air discharge hole 21 of the air chamber 20, thereby washing the filter yarn. Will be done.

이처럼 본 발명은 여과블럭 내의 상부에 통기공과 에어챔버를 형성하고, 상기 공기공급관에 의해 공급되는 공기가 역세척을 위한 물과 함께 분사되면서 여과사의 세척이 이루어지도록 함으로써 세척 효율을 향상시키고 공기의 공급으로 인해 물(역세척)의 소비량을 감소시키는 효과를 갖는다.As described above, the present invention forms an air vent and an air chamber in the upper part of the filtration block, and improves the washing efficiency by supplying the air supplied by the air supply pipe with the water for backwashing, thereby washing the filtration yarn and supplying air. This has the effect of reducing the consumption of water (backwashing).

또한 본 발명은 V-블럭을 사용하는 여과지의 하부구조를 그대로 활용할 수 있는 구조를 갖는 것이어서 국가적으로도 매우 큰 이익을 얻을 수 있는 매우 유용한 발명인 것이다.In addition, the present invention is to have a structure that can utilize the substructure of the filter paper using the V-block as it is a very useful invention that can obtain a very large national benefits.

Claims (1)

여과블럭의 경사면 상부에 가늘고 길게 형성된 통기공과, 상기 여과블럭의 안쪽에 설치되는 에어챔버와, 상기 에어챔버에 연결되는 공기주입관과, 상기 공기주입관에 연결되는 공기공급관으로 구성되어 각 여과블럭 내부에 공기를 공급할 수 있도록 하고 여과블럭의 통기공을 통해 공기가 배출되면서 머드볼의 파쇄가 이루어질 수 있도록 하는 역세척이 가능한 하부집수장치에 있어서,Each filtration block is composed of a ventilation hole formed in the upper part of the inclined surface of the filtration block, an air chamber installed inside the filtration block, an air injection pipe connected to the air chamber, and an air supply pipe connected to the air injection pipe. In the lower collecting device that can be backwashed to allow the air to be supplied and the mud ball crushing as the air is discharged through the vent of the filter block, 상기 공기공급관은 여과블럭 상부에 설치되도록 하고, 다수개의 공기배출구멍이 일정간격 이격되어 형성된 에어챔버는 여과블럭 상부에 한 쌍의 고정대에 의해 길이방향으로 고정설치되어 공기주입관을 통해 공기공급관과 연결되도록 하되, 상기 공기주입관은 여과블럭의 상단 평활면에 형성된 공기주입공을 관통하여 에어챔버의 상단에 연결되도록 하고, 상기 에어챔버의 공기배출구멍은 여과블럭의 경사면에 형성된 통기공보다 상부에 위치하도록 형성함을 특징으로 하는 물과 공기의 역세척이 가능한 하부집수장치.The air supply pipe is installed on the upper part of the filtration block, and the air chamber formed with a plurality of air discharge holes spaced at a predetermined interval is fixedly installed in the longitudinal direction by a pair of fixing rods on the upper part of the filtration block. The air injection pipe is connected to the upper end of the air chamber through the air injection hole formed on the top smooth surface of the filtration block, and the air discharge hole of the air chamber is higher than the vent hole formed on the inclined surface of the filtration block. Lower collecting device capable of backwashing water and air, characterized in that formed to be located on.
KR1020070006749A 2007-01-22 2007-01-22 Bottom collecting device which can be backwashed by water and air KR100756820B1 (en)

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KR101200625B1 (en) * 2009-12-08 2012-11-12 영남대학교 산학협력단 Bio-filtering apparatus
CN105688475A (en) * 2016-01-29 2016-06-22 株式会社智承开发 Lower segment water-collecting device with equidistantly arranged filter caps
KR101720236B1 (en) 2015-11-12 2017-04-03 주식회사 지승개발 Lower catchment equipped with strainers buried at even distance
KR20200137498A (en) * 2019-05-30 2020-12-09 주식회사 지승개발 Underdrain system for wastewater treatment

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KR200253322Y1 (en) 2001-07-26 2001-11-23 주식회사 한힘테크놀러지 Water collecting device of the lower part

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US4196079A (en) 1978-12-29 1980-04-01 Harsco Corporation Pleated filter underdrain, method and apparatus
JPH10174805A (en) 1996-12-17 1998-06-30 Shinko Pantec Co Ltd Air dispersion tube for air washing type filtration device
KR200253322Y1 (en) 2001-07-26 2001-11-23 주식회사 한힘테크놀러지 Water collecting device of the lower part

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KR101200625B1 (en) * 2009-12-08 2012-11-12 영남대학교 산학협력단 Bio-filtering apparatus
KR101720236B1 (en) 2015-11-12 2017-04-03 주식회사 지승개발 Lower catchment equipped with strainers buried at even distance
CN105688475A (en) * 2016-01-29 2016-06-22 株式会社智承开发 Lower segment water-collecting device with equidistantly arranged filter caps
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KR20200137498A (en) * 2019-05-30 2020-12-09 주식회사 지승개발 Underdrain system for wastewater treatment
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