KR20020055835A - A high efficiency settling tank - Google Patents
A high efficiency settling tank Download PDFInfo
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- KR20020055835A KR20020055835A KR1020000085070A KR20000085070A KR20020055835A KR 20020055835 A KR20020055835 A KR 20020055835A KR 1020000085070 A KR1020000085070 A KR 1020000085070A KR 20000085070 A KR20000085070 A KR 20000085070A KR 20020055835 A KR20020055835 A KR 20020055835A
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- tank
- raw water
- storage tank
- center
- settling tank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
- B01D21/06—Settling tanks with single outlets for the separated liquid with moving scrapers with rotating scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0042—Baffles or guide plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0048—Plurality of plates inclined in alternating directions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/18—Construction of the scrapers or the driving mechanisms for settling tanks
- B01D21/20—Driving mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
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- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
Abstract
Description
본 발명은 고효율 침전조에 관한 것으로서, 좀더 구체적으로는 침전조의 내부에 장착되어 원수가 유입되는 중앙 저류조의 상측에 침전조에서 분리된 상등수를 유입시켜 원수와 상등수의 밀도차에의해 와류가 일어나게 함에 따라 중앙저류조에서부터 슬러지의 응축이 일어나게 함으로서 슬러지의 침전 효율을 극대화시키는 고효율 침전조에 관한 것이다.The present invention relates to a high-efficiency sedimentation tank, and more specifically, it is installed inside the sedimentation tank to introduce the supernatant separated from the sedimentation tank on the upper side of the central storage tank into which raw water is introduced, thereby causing the vortex due to the density difference between the raw water and the supernatant. The present invention relates to a high efficiency sedimentation tank that maximizes the sedimentation efficiency of the sludge by causing the condensation of the sludge from the storage tank.
통상적으로 침전 처리설비라 함은 도 4에 도시된 바와 같이 최초에 원수가 채워지는 저장조(100)와, 저장조 채워진 원수를 공급받아 화학적으로 정수처리를 하는 화학처리조(101), 및 화학처리조(101)로부터 배출되어 유입되는 유입수에서 정수와 슬러지를 분리하는 침전조(200)로 이루어진 것으로서, 본 발명은 상기 침전조를 개량한 것으로 먼저 일반적으로 사용되고 있는 침전조의 구성을 설명하면 다음과 같다.In general, a precipitation treatment facility is a storage tank 100 initially filled with raw water, a chemical treatment tank 101 for receiving chemically purified water by receiving raw water filled with a storage tank, and a chemical treatment tank as shown in FIG. 4. As consisting of the settling tank 200 for separating the purified water and sludge from the inflow water discharged from the inlet 101, the present invention is an improvement of the settling tank first described the configuration of the settling tank as follows.
도 3은 종래의 침전조를 나타낸 것으로서, 상단의 내측 둘레에는 상등수 만을 취출하기 위한 상등수 취합부(202)가 형성되어 있으며 하부에는 침전되는 슬러지를 취출하기 위한 경사면(203)과 침전조(201)의 경사면(203)에 밀착되어 모터(209)에 의해 회전되는 회전축(208)을 포함하는 스크레이퍼(207)와 슬러지 취합부(204)가 형성되어 있는 침전조(201), 및 침전조(201)의 상부 중앙에 장착되어 원수가 유입되어 하부로 배출되며 원수 유입관(206)이 장착되어 있는 중앙 저류조(205)로 구성됨을 특징으로 한다.Figure 3 shows a conventional sedimentation tank, the upper circumference of the upper side is formed with a supernatant water collecting portion 202 for extracting only the supernatant water and the inclined surface 203 and the inclined surface of the sedimentation tank 201 for taking out the sludge settled in the lower portion A settling tank 201 in which a scraper 207 including a rotating shaft 208 rotated by a motor 209 and a sludge collection unit 204 are formed in close contact with the 203, and an upper center of the settling tank 201. It is characterized in that consisting of the central storage tank 205 is equipped with the raw water is introduced and discharged to the bottom and the raw water inlet pipe 206 is mounted.
따라서 상기 중앙 저류조(205)의 하부는 개방되어 있음으로서, 중앙 저류조(205)로 유입된 원수가 침전조(201)로 유입된 후 슬러지는 하부로 침강되고 상등수는 상부로 분리되어 상기 상등수 취합부(202)에 취합되어 외부로 배출되는 것이다.Therefore, since the lower portion of the central storage tank 205 is open, the raw water introduced into the central storage tank 205 is introduced into the settling tank 201, and then the sludge is settled to the lower portion and the supernatant water is separated into the upper portion of the supernatant collector ( It is collected in 202 and is discharged to the outside.
그러나, 상기와 같은 침전조는 단순히 공급된 원수가 중앙에 형성되어 있는 중앙 저류조에 저류 되었다가 중력을 통해 배출구를 통해 침전조로 유입됨으로서, 슬러지 덩어리의 형성(응축)이 잘 되지 않음에 따라 슬러지의 침전 효율이 저하되는 문제점을 가지고 있었다.However, the sedimentation tank as described above is simply stored in the central reservoir formed in the center of the supplied raw water is introduced into the sedimentation tank through the outlet through gravity, sedimentation of the sludge as the formation (condensation) of the sludge is not well There was a problem that the efficiency is lowered.
또한 중앙 저류조에서 배출되는 원수가 침전조의 중앙으로 편중되게 하강됨으로서, 침전조의 전체부피에 비해 상대적으로 침강효율이 저하되는 문제점도 가지도 있었다.In addition, since the raw water discharged from the central storage tank is lowered to the center of the sedimentation tank, there is also a problem that the sedimentation efficiency is lowered relative to the total volume of the sedimentation tank.
이에 본 발명은 상기한 문제점을 해소하기 위하여 발명된 것으로, 중앙 저류조의 상부에는 침전조로부터 상등수가 유입되게 하고 그 하부로는 원수 유입관을통해 원수가 유입되게 하여 상등수와 원수의 밀도차이가 생기게 함으로서, 중앙 저류조의 내부에서 원수의 흐름과 밀도차에 의하여 원수에 와류를 발생되게 함에 따라 저류조에서 슬러지가 최초로 응집되도록 하여 슬러지의 침전시간을 최소화할 수 있는 고효율 침전조를 제공함에 목적을 가지는 것이다.Accordingly, the present invention was invented to solve the above problems, by allowing the supernatant to flow from the sedimentation tank to the upper portion of the central storage tank and the raw water to flow through the raw water inlet pipe to the lower portion thereof, thereby causing a density difference between the supernatant and the raw water. The purpose of the present invention is to provide a high efficiency sedimentation tank which minimizes the sludge settling time by allowing the sludge to aggregate for the first time due to the vortices generated in the raw water by the flow and density difference of the raw water in the central storage tank.
또한 중앙 저류조의 하부에 저속으로 회전되는 회전 분배판을 장착하여 중앙 저류조에 유입된 원수를 침전조의 중간에서 확산시켜 중간 확산층을 형성시킴으로서, 침전된 슬러지의 재 부상을 방지하게 하는 목적도 있는 것이다.In addition, by installing a rotary distribution plate rotated at a low speed in the lower portion of the central storage tank to spread the raw water introduced into the central storage tank in the middle of the settling tank to form an intermediate diffusion layer, there is also an object to prevent re-injury of the precipitated sludge.
또 상기 회전 분배판을 통해 원수를 침전조의 측벽까지 확장되게 하여 침전조의 내측면이 이루는 내경면적의 전체에서 침강이 이루어지게 함으로서, 침강효율을 극대화하는 목적도 가지는 것이다.In addition, by allowing the raw water to extend to the side wall of the settling tank through the rotary distribution plate to be settled in the entire inner diameter area of the inner surface of the settling tank, it is also intended to maximize the settling efficiency.
상기와 같은 목적을 달성하기 위한 본 발명은, 상단의 내측 둘레에는 상등수 만을 취출하기 위한 웨어를 포함하는 상등수 취합부가 형성되어 있으며 하부에는 슬러지를 취출하기 위한 경사면과 침전조의 경사면에 밀착되어 모터에 의해 회전되는 회전축이 포함되는 스크레이퍼와 슬러지 취합부가 형성되어 있는 침전조와; 침전조의 상부 중앙에 장착되어 원수가 유입되어 하부로 배출되며 측벽에는 원수 유입관이 장착되어 있는 중앙 저류조로 이루어진 통상의 침천조에 있어서, 상기 중앙 저류조의 측벽 상부에는 침전조로부터 상등수 만이 유입되는 다수의 개방홀이 형성되며 이 개방홀의 내측에는 하단이 측벽과 일체로 연결되어 상단이 상기 상등수 취합부의 격벽 상단과 동일한 높이를 가지는 웨어가 장착되고, 상기 중앙 저류조의 하면에는 중앙이 함몰되는 경사면이 형성되어 이 경사면의 중앙에는 원수가 배출되는 개방부가 형성되며, 상기 개방부의 하측에는 외 주연부가 하부로 경사지며 중앙이 상기 회전축에 고정되어 연동 회전되는 회전 분배판이 장착됨을 특징으로 하는 것이다.The present invention for achieving the above object, the upper circumference of the upper end is formed with a supernatant water collecting portion including a wear for taking out only the supernatant water and the lower side is in close contact with the inclined surface and the inclined surface of the settling tank by the motor A settling tank including a scraper and a sludge collection unit including a rotating shaft to be rotated; In the conventional sink tank consisting of a central storage tank is installed in the upper center of the settling tank is discharged into the lower portion and the raw water inlet pipe is mounted on the side wall, a plurality of upper water flows only from the settling tank in the upper sidewall of the central storage tank An opening is formed, and inside the opening, a lower end is integrally connected with the side wall, and a top is mounted with a wear having the same height as the upper end of the partition wall of the upper water collecting portion, and an inclined surface is formed at the bottom of the central storage tank. An open part through which raw water is discharged is formed in the center of the inclined surface, and an outer peripheral part is inclined downward in the lower part of the inclined surface, and a rotation distribution plate in which the center is fixed to the rotating shaft is mounted.
도 1은 본 발명의 침전조를 나타낸 전체 구성 단면도.1 is a cross-sectional view showing the overall configuration of the sedimentation tank of the present invention.
도 2는 본 발명의 중앙 저류조를 확대도시한 일부절개 사시도.Figure 2 is a partially cutaway perspective view showing a central storage tank of the present invention.
도 3은 종래의 침전조를 나타낸 전체 구성 단면도.Figure 3 is an overall configuration cross-sectional view showing a conventional sedimentation tank.
도 4는 통상적인 침전 처리 설비를 나타낸 블럭도.4 is a block diagram showing a conventional sedimentation treatment facility.
도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings
1 : 침전조1: settling tank
11 : 상등수 취합조11: High water collection tank
2 : 중앙 저류조2: central reservoir
21 : 측벽21: sidewall
22 : 원수 유입관22: raw water inlet pipe
23 : 경사면23: slope
3 : 스크레이퍼3: scraper
31 : 회전축31: rotating shaft
32 : 모터32: motor
4 : 개방홀4: opening hole
41 : 경사웨어41: warp wear
5 : 개방부5: opening
51 : 측벽51: sidewall
52 : 원형 경사면52: circular slope
6 : 회전 분배판6: rotating distribution plate
61 : 원호형 돌출익61: arc-shaped protrusion
이하 본 발명을 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명의 침전 농축조를 나타낸 것으로서, 먼저 그 구성을 설명하면 다음과 같다.1 shows a precipitation thickening tank of the present invention. First, its configuration will be described.
상단의 내측 둘레에는 상등수 만을 취출하기 위한 격벽(111)을 포함하는 상등수 취합부(11)가 형성되어 있으며 하부에는 슬러지를 취출하기 위한 경사면(12)과 침전조(1)의 경사면(12)에 밀착되어 모터(32)에 의해 회전되는 회전축(31)이 포함되는 스크레이퍼(3)와 슬러지 취합부(13)가 형성되어 있는 침전조(1), 및 침전조(1)의 상부 중앙에 장착되어 원수가 유입되어 하부로 배출되며 측벽(21)에는 원수 유입관(22)이 장착되어 있는 중앙 저류조(2)로 이루어진 통상의 침전 농축조에 있어서,The upper circumference of the upper end is formed with a supernatant water collecting part 11 including a partition wall 111 for discharging only the supernatant, and the lower part is in close contact with the inclined surface 12 for discharging the sludge and the inclined surface 12 of the precipitation tank 1 And a settling tank (1) having a scraper (3) and a sludge collection unit (13) including a rotating shaft (31) rotated by a motor (32), and mounted in the upper center of the settling tank (1), where raw water flows in. In the conventional sedimentation concentration tank consisting of a central storage tank (2) equipped with a raw water inlet pipe (22) on the side wall (21)
상기 중앙 저류조(2)의 측벽(21) 상부에는 침전조(1)로부터 상등수 만이 유입될 수 있도록 다수의 개방홀(4)이 형성되어 이 개방홀(4)의 내측에는 경사웨어(41)가 장착되고, 상기 중앙 저류조(2)의 하면에는 중앙이 함몰되는 경사면(23)이 형성되어 이 경사면(23)의 중앙에는 원수가 배출되는 개방부(5)가 형성되며, 이 개방부(5)의 하측에는 회전축(31)에 고정되어 연동 회전되는 회전 분배판(6)이 장착됨을 특징으로 하는 것이다.A plurality of openings 4 are formed in the upper sidewall 21 of the central storage tank 2 so that only the supernatant can flow from the settling tank 1, and the inclined wear 41 is mounted inside the opening 4. The inclined surface 23 in which the center is recessed is formed in the lower surface of the central storage tank 2, and an opening 5 through which raw water is discharged is formed in the center of the inclined surface 23. The lower side is characterized in that the rotary distribution plate 6 is fixed to the rotating shaft 31 is mounted in rotation.
특히 상기 경사웨어(41)의 하단은 측벽(21)과 일체로 연결되어 상단이 상기 상등수 취합부(11)의 웨어(111) 상단과 동일한 높이을 가짐으로서, 침전조(1)로부터 상등수 만이 중앙 저류조(2)의 상부로 유입되는 것이다.In particular, the lower end of the inclined wear 41 is integrally connected with the side wall 21 so that the upper end has the same height as the upper end of the weir 111 of the upper water collecting portion 11, so that only the supernatant from the settling tank 1 is stored in the central storage tank ( It is introduced to the top of 2).
또한 상기 회전 분배판(6)은 외 주연부가 하부로 경사져 형성됨으로서 중앙 저류조(2)로부터 배출되는 원수를 침수조(1)의 중간층으로 확산시킬 수 있는 것이다.In addition, the rotary distribution plate 6 is formed by inclining the outer periphery is to be able to diffuse the raw water discharged from the central storage tank (2) to the middle layer of the submersion tank (1).
도 2는 본 발명의 중앙 저류조를 확대도시한 일부절개 사시도로서, 상기 개방부(5)는, 원통형의 측벽(51)과 이 측벽의 하단에서 연장되어 외 주연부가 하부로 경사진 원형 경사판(52)으로 형성되어 있는 것이다.Fig. 2 is a partially cutaway perspective view showing an enlarged central storage tank of the present invention, wherein the opening portion 5 extends from a cylindrical side wall 51 and a lower end of the side wall so that the outer periphery is inclined downward. It is formed by).
또한 상기 회전 분배판(6)의 상면에는 다수의 원호형 돌출익(61)이 등간격으로 장착됨으로서, 상기 중앙 저류조(2)로부터 배출되는 원수의 저속 교반을 가능하게 하는 것이다.In addition, a plurality of arc-shaped protruding blades 61 are mounted on the upper surface of the rotary distribution plate 6 at equal intervals to enable low-speed stirring of the raw water discharged from the central storage tank 2.
이하, 본 발명에 따른 침전 농축조의 작용관계를 설명하면 다음과 같다.Hereinafter, the functional relationship of the precipitation concentrate tank according to the present invention will be described.
도 1 및 도 2에 도시된 바와 같이, 먼저 중앙 저류조(2)의 상부에 형성된 웨어(21)의 상부에 형성되어 있는 개방홀(4)을 통해 침전조(1)의 상부에 분리된 상등수가 중앙 저류조(2)의 상부로 유입된 상태를 유지한다. 다음 중앙 저류조(2)의 일측에 형성되어 있는 원수 유입관(22)을 통해 원수가 중앙 저류조(2)의 내부로 유입되게 하여 상등수와 원수의 밀도차이가 생기게 함으로서 밀도가 큰 원수는 하부층을 이루게 하고 상대적으로 밀도가 작은 상등수는 원수층의 상부에 층이 형성되게 하는 것이다.As shown in FIGS. 1 and 2, first, the supernatant separated in the upper portion of the settling tank 1 through the opening hole 4 formed in the upper portion of the weir 21 formed in the upper portion of the central storage tank 2. It maintains the state which flowed into the upper part of the storage tank (2). Next, the raw water flows into the central storage tank 2 through the raw water inflow pipe 22 formed at one side of the central storage tank 2, so that the density difference between the supernatant water and the raw water is made to form a lower layer. The relatively dense supernatant allows the layer to form on top of the raw water layer.
따라서 중앙 저류조(2)의 내부에서는 원수의 흐름이 일어남과 동시에 밀도차로 인하여 원수는 와류를 발생하게 됨으로서, 중앙 저류조에서부터 슬러지가 최초로 응집되도록 하여 슬러지의 침전 효율을 증대시키는 것이다.Therefore, in the inside of the central storage tank (2), the raw water flows and the vortices are generated due to the density difference, so that the sludge is first aggregated from the central storage tank to increase the sedimentation efficiency of the sludge.
그후 상기 중앙 저류조(2)의 하부에 형성되어 있는 개방부(5)를 통해 배출된 원수는 중앙 저류조(2)의 하부에서 저속으로 회전되는 회전 분배판(6)의 상부로 유입된 다음 침전조(1)의 중간으로 확산되어 중간 확산층을 형성함으로서, 침전된 슬러지의 재 부상을 방지할 수 있는 것이다.Thereafter, the raw water discharged through the opening 5 formed in the lower portion of the central storage tank 2 flows into the upper portion of the rotary distribution plate 6 which is rotated at a low speed in the lower portion of the central storage tank 2 and then settling tank ( By spreading to the middle of 1) to form an intermediate diffusion layer, it is possible to prevent resuspension of precipitated sludge.
또한 상기 회전 분배판(6)을 통해 원수를 침전조(1)의 측벽까지 확산됨으로서,침전조의 내경면적의 전체에서 슬러지의 침전이 이루어지게 하여 침전조(1)의 부피와 상응되는 침전효율을 얻을 수 있는 것이다.In addition, by spreading the raw water to the side wall of the settling tank 1 through the rotary distribution plate 6, the sludge is precipitated in the entire inner diameter of the settling tank to obtain the settling efficiency corresponding to the volume of the settling tank 1. It is.
상술한 바와 같은 본 발명은, 침전조의 내부에 장착되어 있는 중앙 저류조의 내부에서부터 유입되는 원수가 와류되게 하여 슬러지가 최초로 응집되도록 함으로서, 슬러지의 침전시간을 최소화 할 수 있는 효과를 가지는 것이다.The present invention as described above has the effect of minimizing the sludge settling time by allowing the sludge to be aggregated for the first time by allowing the raw water introduced from the inside of the central storage tank mounted inside the settling tank to vortex.
또한 중앙 저류조의 하부에 저속으로 회전되는 회전 분배판을 장착하여 침전조의 중간에서 확산시켜 중간 확산층을 형성시킴으로서 침전된 슬러지의 재 부상을 방지하여 부상되어 있던 상등수의 오염을 방지 할 수 있는 효과도 가지는 것이다.In addition, by installing a rotary distribution plate rotating at a low speed in the lower portion of the central storage tank to diffuse in the middle of the sedimentation tank to form an intermediate diffusion layer to prevent re-injury of the precipitated sludge, it also has the effect of preventing contamination of the injured supernatant water will be.
또 상기 회전 분배판을 통해 원수를 침전조의 측벽까지 확장되게 하여 침전조의 내측면이 이루는 내경면적의 전체에서 침강이 이루어지게 함으로서 침강효율을 극대화하는 효과도 가지는 것이다.In addition, the raw water is extended to the side wall of the settling tank through the rotary distribution plate to have the effect of maximizing the settling efficiency by the sedimentation is made in the entire inner diameter area of the inner surface of the settling tank.
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