KR100359436B1 - sludge dehydrator - Google Patents
sludge dehydrator Download PDFInfo
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- KR100359436B1 KR100359436B1 KR1020000008771A KR20000008771A KR100359436B1 KR 100359436 B1 KR100359436 B1 KR 100359436B1 KR 1020000008771 A KR1020000008771 A KR 1020000008771A KR 20000008771 A KR20000008771 A KR 20000008771A KR 100359436 B1 KR100359436 B1 KR 100359436B1
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- sludge
- dewatering
- opening
- dehydration
- reservoir
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/063—Underpressure, vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
Abstract
본 발명은 탈수효율을 높여, 짧은 시간에 많은 양의 슬러지를 탈수 할 수 있도록 된 새로운 구조의 슬러지탈수장치에 관한 것이다.The present invention relates to a sludge dewatering device of a new structure that can increase the dewatering efficiency, so that a large amount of sludge can be dewatered in a short time.
본 발명에 따르면, 개구부(2)와 배수구(4)가 형성되어 상기 개구부(2)를 통해 내부에 슬러지를 투입할 수 있도록 된 탈수통(6)과, 이 탈수통(6)의 내부에 장착되어 탈수통(6) 내부공간을 상기 개구부(2) 쪽의 탈수부(8)와 상기 배수구(4) 쪽의 저수부(10)로 구획하는 필터(12)와, 상기 탈수통(6)의 저수부(10)에 연결된 진공펌프(14)를 포함하여 구성되며, 상기 진공펌프(14)로 저수부(10)의 공기를 배출하면, 상기 탈수부(8)에 투입된 슬러지가 기압에 의해 가압되어, 슬러지에 포함된 수분이 상기 저수부(10)로 수집되어 배수구(4)로 배출되는 것을 특징으로 하는 슬러지탈수장치가 제공된다.According to the present invention, an opening 2 and a drain 4 are formed so that sludge can be introduced into the interior through the opening 2, and mounted in the inside of the dehydrating tank 6; Filter 12 for dividing the internal space of the dehydration container 6 into the dehydration part 8 of the opening part 2 side and the reservoir part 10 of the drain port 4 side, It comprises a vacuum pump 14 connected to the reservoir 10, and when the air of the reservoir 10 is discharged to the vacuum pump 14, the sludge introduced into the dewatering portion 8 is pressurized by air pressure The sludge dewatering device is provided, characterized in that the water contained in the sludge is collected by the reservoir 10 and discharged to the drain port (4).
Description
본 발명은 슬러지탈수장치에 관한 것으로서, 보다 상세하게는 탈수효율을 높여, 짧은 시간에 많은 양의 슬러지를 탈수 할 수 있도록 된 새로운 구조의 슬러지탈수장치에 관한 것이다.The present invention relates to a sludge dewatering apparatus, and more particularly, to a sludge dewatering apparatus having a new structure that can increase the dewatering efficiency and dewater a large amount of sludge in a short time.
일반적으로, 슬러지탈수장치는 다량의 수분이 함유된 슬러지를 압축기로 가압하여, 수분을 제거하므로써, 슬러지의 부피를 줄이고, 슬러지처리에 따른 환경오염을 줄이고, 처리비용을 절감할 수 있도록 한 것으로, 일측에 배수구가 형성된 탈수통의 내부에 슬러지를 투입하고, 상기 탈수통의 내부에 장착된 압축기를 이용하여 슬러지를 배수구쪽으로 압축하도록 구성된다. 이때, 상기 배수구에는 슬러지의 입자를 걸러내는 필터가 설치되어, 압축기에 의해 가압된 슬러지에서 수분만이 배수구를 통해 배출되도록 구성되며, 상기 탈수통의 일측에는 수분이 제거된 슬러지를 배출할 수 있도록 별도의 배출구가 형성된다.In general, the sludge dewatering device is to press the sludge containing a large amount of water by the compressor, to remove the water, thereby reducing the volume of the sludge, to reduce the environmental pollution of the sludge treatment, and to reduce the treatment cost, Injecting sludge into the inside of the dehydration tank formed with a drain port on one side, it is configured to compress the sludge to the drain using a compressor mounted inside the dehydration tank. In this case, a filter for filtering particles of sludge is installed in the drain port, so that only water from the sludge pressurized by the compressor is discharged through the drain port, so that one side of the dewatering container can discharge the sludge from which the water is removed. A separate outlet is formed.
그러나, 이러한 압착방식을 이용하는 슬러지탈수장치는 압축기를 이용하여, 슬러지를 배수구쪽으로 압착하므로, 탈수통의 배수구 쪽에 몰려있는 슬러지에 의해 배수구가 막혀 수분이 원활히 배출되지 않고, 탈수효율이 떨어지는 문제점이 있었다. 특히, 수분을 배출하기 위해, 슬러지를 가압하는 압력을 높이면, 슬러지 입자가 필터를 통과하여 수분과 함께 배출되어 환경오염을 유발시키는 문제점이 있었다. 또한, 상기 탈수통 내부의 슬러지를 배출하기 위해서는, 탈수통에 형성된 배출구로 슬러지를 배출하여야 하므로, 사용이 불편한 문제점이 있었다.However, since the sludge dewatering apparatus using the compression method uses a compressor, the sludge is compressed to the drain port, so that the drain port is blocked by the sludge accumulated in the drain port side of the dehydration container, so that the water is not discharged smoothly and the dewatering efficiency is inferior. . In particular, in order to discharge the water, when the pressure for pressurizing the sludge is increased, the sludge particles are discharged together with the water passing through the filter to cause environmental pollution. In addition, in order to discharge the sludge inside the dewatering container, the sludge should be discharged to the discharge port formed in the dewatering container, there is a problem inconvenient use.
본 발명은 상기의 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 탈수효율을 높여, 짧은 시간에 많은 양의 슬러지를 탈수 할 수 있도록 된 새로운 구조의 슬러지탈수장치를 제공하는 것이다.The present invention is to solve the above problems, an object of the present invention to improve the dewatering efficiency, to provide a sludge dewatering device of a new structure that can dewater a large amount of sludge in a short time.
도 1은 본 발명에 따른 슬러지탈수장치를 도시한 단면도1 is a cross-sectional view showing a sludge dewatering apparatus according to the present invention.
도 2는 상기 슬러지탈수장치의 작동상태를 도시한 참고도Figure 2 is a reference diagram showing the operating state of the sludge dewatering apparatus
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
2. 개구부 4. 배수구2. Opening 4. Drain
6. 탈수통 8. 탈수부6. Dehydrator 8. Dehydrator
10. 저수부 12. 필터10. Reservoir 12. Filter
14. 진공펌프14. Vacuum pump
본 발명에 따르면, 개구부(2)와 배수구(4)가 형성되어 상기 개구부(2)를 통해 내부에 슬러지를 투입할 수 있도록 된 탈수통(6)과, 이 탈수통(6)의 내부에 장착되어 탈수통(6) 내부공간을 상기 개구부(2) 쪽의 탈수부(8)와 상기 배수구(4) 쪽의 저수부(10)로 구획하는 필터(12)와, 상기 탈수통(6)의 저수부(10)에 연결된 진공펌프(14)를 포함하여 구성되며, 상기 진공펌프(14)로 저수부(10)의 공기를 배출하면, 상기 탈수부(8)에 투입된 슬러지가 기압에 의해 가압되어, 슬러지에 포함된 수분이 상기 저수부(10)로 수집되어 배수구(4)로 배출되는 것을 특징으로 하는 슬러지탈수장치가 제공된다.According to the present invention, an opening 2 and a drain 4 are formed so that sludge can be introduced into the interior through the opening 2, and mounted in the inside of the dehydrating tank 6; Filter 12 for dividing the internal space of the dehydration container 6 into the dehydration part 8 of the opening part 2 side and the reservoir part 10 of the drain port 4 side, It comprises a vacuum pump 14 connected to the reservoir 10, and when the air of the reservoir 10 is discharged to the vacuum pump 14, the sludge introduced into the dewatering portion 8 is pressurized by air pressure The sludge dewatering device is provided, characterized in that the water contained in the sludge is collected by the reservoir 10 and discharged to the drain port (4).
이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
도 1 및 도 2는 본 발명에 따른 슬러지탈수장치를 도시한 것으로, 이 슬러지탈수장치는 그 양단에 개구부(2)와 배수구(4)가 형성된 탈수통(6)과, 이 탈수통(6)의 내부에 장착되어 탈수통(6)의 내부공간을 상기 개구부(2) 쪽의 탈수부(8)와, 상기 배수구(4) 쪽의 저수부(10)로 구획하는 필터(12)와, 상기 탈수통(6)의 저수부(10)에 연결된 진공펌프(14)로 구성된다.1 and 2 illustrate a sludge dewatering device according to the present invention, which is a dewatering container 6 having openings 2 and drains 4 formed at both ends thereof, and the dewatering container 6. A filter (12) mounted inside the filter compartment for partitioning the internal space of the dewatering container (6) into the dewatering part (8) on the side of the opening (2) and the reservoir part (10) on the side of the drain port (4); It consists of a vacuum pump 14 connected to the reservoir 10 of the dehydration tank (6).
상기 탈수통(6)은 지면 또는 차량에 설치된 지지대(16)에 회전가능하게 장착된 것으로, 그 일측에 연결된 유압모터(18)를 이용하여 저속으로 정역회전시킬 수 있도록 구성된다. 이때, 상기 탈수통(6)은 상기 개구부(2)가 배수구(4)보다 상측에 위치되도록 경사지게 배치되어, 상기 개구부(2)를 통해 상기 탈수부(8)로 슬러지를 투입할 수 있도록 구성된다. 또한, 상기 개구부(2)에는 그 외측면에서 상향으로 연장된 호퍼(14)가 구비되며, 상기 탈수통(6)의 탈수부(8) 내주면에는 나선방향의 이송블레이드(22)가 내향돌출된다. 상기 호퍼(14)는 상기 탈수통(6)과 별체로 구성되며, 도시안된 지지대에 장착되어 상기 탈수통(6)의 회전과 무관하게 위치고정된다. 상기 이송블레이드(22)는 탈수통(6)에 일체로 구성되어, 탈수통(6)과 함께 정역회전되는 것으로, 탈수부(8) 내부의 슬러지는 이송블레이드(22)에 안내되어, 상기 탈수통(6) 및 이송블레이드(22)의 회전방향에 따라 필터(12)쪽으로 전진되거나, 개구부(2)쪽으로 후진되어 개구부(2)로 배출된다.The dehydration container (6) is rotatably mounted on the support (16) installed on the ground or the vehicle, and is configured to be able to rotate forward and backward at a low speed by using a hydraulic motor (18) connected to one side thereof. In this case, the dehydration container 6 is disposed to be inclined so that the opening 2 is located above the drain 4, and is configured to inject sludge into the dewatering part 8 through the opening 2. . In addition, the opening 2 is provided with a hopper 14 extending upward from the outer surface, the spiral feed blade 22 is projected inward on the inner peripheral surface of the dewatering portion 8 of the dehydration container (6). . The hopper 14 is formed separately from the dehydration container 6, and is mounted on a support (not shown) and is fixed regardless of the rotation of the dehydration container 6. The conveying blade 22 is integrally formed in the dehydrating container 6, and is rotated forward and backward together with the dehydrating container 6, and sludge inside the dewatering part 8 is guided to the conveying blade 22, so that the dewatering According to the rotation direction of the cylinder 6 and the transfer blade 22, it is advanced toward the filter 12, or backward toward the opening 2 is discharged to the opening (2).
상기 필터(12)는 금속재질로 구성된 한쌍의 타공망(24) 사이에 필터부재(26)를 설치하여 구성된 것으로, 상기 탈수부(8)에 투입된 슬러지에 포함된 수분은 상기 타공망(24)과 필터부재(26)를 통과하여 상기 저수부(10)로 배출된다. 이때, 이필터(12)는 상기 탈수통(6)의 중심축선과 경사지게 배치되어, 도 2에 도시한 바와 같이, 탈수통(6)의 회전에 따라 수직방향과 수평방향으로 연속적으로 위치가 변하도록 구성된다. 상기 진공펌프(14)는 상기 탈수통(6)의 배수구(4)에 연결되어 저수부(10) 내부의 공기를 배출하는 것으로, 이 진공펌프(14)로 저수부(10) 내부의 공기를 배출하면, 기압에 의해 탈수통(6) 내부의 슬러지가 가압되어, 슬러지에 포함된 수분이 필터(12)를 통해 상기 저수조(28)에 수집된 후, 배수구(4)를 통해 배출된다. 이때, 상기 배수구(4)와 진공펌프(14)의 사이에는 별도의 저수조(28)와 습기제거용 필터(30)가 설치되어, 상기 배수구(4)로 배출된 수분은 상기 저수조(28)에 수집되며, 저수조(28)의 수분이 진공펌프(14)로 유입되는 것을 방지한다.The filter 12 is formed by installing the filter member 26 between a pair of perforated network 24 made of a metal material, the water contained in the sludge introduced into the dewatering unit 8 is the perforated network 24 and the filter Passed through the member 26 is discharged to the reservoir (10). At this time, the filter 12 is disposed to be inclined with the central axis of the dehydration container 6, as shown in Figure 2, the position is continuously changed in the vertical direction and the horizontal direction in accordance with the rotation of the dehydration container (6). It is configured to. The vacuum pump 14 is connected to the drain port 4 of the dehydration tank 6 to discharge the air inside the reservoir 10, and the vacuum pump 14 supplies air inside the reservoir 10. When discharged, the sludge inside the dehydration tank 6 is pressurized by air pressure, and the water contained in the sludge is collected in the water storage tank 28 through the filter 12 and then discharged through the drain port 4. At this time, a separate reservoir 28 and a moisture removing filter 30 are installed between the drain 4 and the vacuum pump 14, and the water discharged to the drain 4 is stored in the reservoir 28. Is collected and prevents water from the reservoir 28 from entering the vacuum pump 14.
그리고, 상기 탈수통(6)의 탈수부(8)에는 상기 필터(12)에 달라붙은 슬러지를 제거하는 스크래퍼(34,38)가 장착된다. 이 스크래퍼(34,38)는 필터(12)의 표면에 밀착되는 블레이드(34)와, 상기 탈수통(6)의 외주면에 장착되며 그 구동축(36)이 상기 블레이드(34)에 연결되어 블레이드(34)를 연속적을 회전시키는 구동모터(38)로 구성된 것으로, 상기 블레이드(34)를 회전시켜 필터(12)에 달라붙은 슬러지를 제거하므로써, 슬러지에 의해 필터(12)가 막히는 것을 방지할 수 있다.The dewatering part 8 of the dewatering container 6 is equipped with scrapers 34 and 38 for removing sludge adhering to the filter 12. The scrapers 34 and 38 are mounted on the blade 34 in close contact with the surface of the filter 12 and on the outer circumferential surface of the dehydration container 6, and the drive shaft 36 is connected to the blade 34 so that the blade ( 34 is composed of a drive motor 38 which rotates continuously. By rotating the blade 34 to remove the sludge adhering to the filter 12, it is possible to prevent the filter 12 from being blocked by the sludge. .
도면번호 40은 상기 개구부(2)로 배출되는 슬러지를 유도하는 가이드를 도시한 것이며, 도면번호 42는 상기 탈수통(6)의 저수부(10)에 형성된 별도의 배수구를 도시한 것으로, 이 배수구(42)에는 별도의 개폐밸브(44)가 장착되어, 탈수통(6)의 정지시 저수부(10) 내부의 물을 배출할 수 있도록 구성된다. 또한, 도면번호 46는상기 탈수통(6)을 회전가능하게 지지하는 지지로울러를 도시한 것이다.Reference numeral 40 shows a guide for inducing sludge discharged into the opening 2, and reference numeral 42 shows a separate drain hole formed in the water storage part 10 of the dewatering container 6. 42 is provided with a separate opening and closing valve 44, it is configured to discharge the water in the reservoir 10 when the dehydration tank (6). In addition, reference numeral 46 shows a support roller for rotatably supporting the dehydration container (6).
따라서, 상기 탈수통(6)을 정회전시면서 상기 호퍼(14)를 통해 탈수부(8)에 슬러지를 투입하면, 슬러지는 상기 이송블레이드(22)를 따라 필터(12)쪽으로 이송된다. 그리고, 상기 진공펌프(14)에 의해 저수부(10)의 기압이 낮아지면 대기압에 의해 상기 슬러지가 가압되어 슬러지에 포함된 수분이 저수부(10)로 배출된 후, 상기 배수구(4)를 통해 상기 저수조(28)에 수집된다. 이때, 상기 탈수통(6)이 회전됨에 따라, 상기 필터(12)는 수평방향과 수직방향으로 연속적으로 위치이동되어 그 표면에 달라붙은 슬러지가 떨어져 나가게 되며, 필터(12)에서 떨어져 나가지 않은 슬러지는 상기 스크래퍼(34,38)에 의해 강제로 탈락된다.Therefore, when the sludge is introduced into the dehydration unit 8 through the hopper 14 while the spinneret 6 is rotated forward, the sludge is transferred toward the filter 12 along the transfer blade 22. When the atmospheric pressure of the reservoir 10 is lowered by the vacuum pump 14, the sludge is pressurized by atmospheric pressure, and the water contained in the sludge is discharged to the reservoir 10. Collected in the reservoir 28 through. At this time, as the dehydration container 6 is rotated, the filter 12 is continuously moved in the horizontal direction and the vertical direction so that the sludge stuck to the surface of the filter 12 is removed, and the sludge not separated from the filter 12. Is forcibly dropped by the scrapers 34 and 38.
그리고, 슬러지가 완전히 탈수되면, 상기 탈수통(6)을 역회전시키면, 탈수통(6) 내부의 슬러지는 상기 이송블레이드(22)를 따라 후진하여 상기 개구부(2)로 배출된다. 그리고, 탈수통(6) 내부의 슬러지가 완전히 배출되면, 수분이 포함된 새로운 슬러지를 탈수통(6)에 투입하여 다시 탈수시킬 수 있다.When the sludge is completely dehydrated, when the dewatering container 6 is rotated in reverse, the sludge inside the dewatering container 6 is retracted along the transfer blade 22 and discharged to the opening 2. Then, when the sludge in the dehydration container 6 is completely discharged, new sludge containing water may be introduced into the dehydration container 6 and dewatered again.
이와같이 구성된 슬러지탈수장치는 압출스크류와 같은 압축기를 이용하여 슬러지를 압착하는 종래의 슬러지탈수장치와는 달리, 진공압을 이용하여 슬러지를 가압하므로, 슬러지가 탈수통(6) 내부에서 유동적으로 움직일 수 있다. 따라서, 슬러지가 필터(12)와 배수구(4)를 막아 수분이 배출되지 않게 되는 것을 방지할 수 있으며, 슬러지에 포함된 수분을 원활히 배출되어 탈수효과를 높일 수 있는 장점이 있다. 또한, 상기 탈수통(6)을 역회전시켜 탈수통(6) 내부의 슬러지를 배출시킬 수 있으므로, 탈수통(6)에 별도의 배출구를 형성하여 이 배출구를 통해 슬러지를 배출하여야 하는 종래의 탈수장치에 비해 사용이 편리한 장점이 있다.Unlike the conventional sludge dewatering apparatus which presses the sludge by using a compressor such as an extrusion screw, the sludge dewatering apparatus configured as described above presses the sludge using vacuum pressure, so that the sludge can be moved in the dehydration container 6 fluidly. have. Therefore, the sludge can prevent the water from being discharged by blocking the filter 12 and the drain port 4, there is an advantage that can smoothly discharge the water contained in the sludge to increase the dehydration effect. In addition, since the sludge inside the dewatering container 6 can be discharged by rotating the dewatering container 6 in reverse, the conventional dewatering to discharge the sludge through the outlet by forming a separate outlet. It has the advantage of being easier to use than the device.
이상에서와 같이 본 발명에 의하면, 탈수통내부의 공기를 진공펌프를 이용하여 배출하여, 이때 발생되는 진공압을 이용하여 슬러지에 포함된 수분을 제거할 수 있도록 하므로써, 탈수효율을 높여, 짧은 시간에 많은 양의 슬러지를 탈수 할 수 있도록 된 새로운 구조의 슬러지탈수장치를 제공할 수 있다.As described above, according to the present invention, the air in the dehydration tank is discharged by using a vacuum pump, so that the water contained in the sludge can be removed by using the vacuum pressure generated at this time, thereby improving the dehydration efficiency and short time. It is possible to provide a sludge dewatering device with a new structure that can dewater a large amount of sludge.
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| KR1020000008771A KR100359436B1 (en) | 2000-02-23 | 2000-02-23 | sludge dehydrator |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01228516A (en) * | 1988-03-07 | 1989-09-12 | Hitachi Ltd | Treatment of sludge and apparatus therefor |
| JPH0771052A (en) * | 1993-06-25 | 1995-03-14 | Toyo Constr Co Ltd | Dehydration type screw conveyer |
| KR950005818A (en) * | 1993-08-26 | 1995-03-20 | 오재덕 | High Purity Purification of 2-t-Butylimino-3-isopropyl-5-phenyl-tetrahydro-1,3,5-thiadiazin-4-one |
| KR19990046620A (en) * | 1999-04-07 | 1999-07-05 | 김두만 | Drum-type vacuum dryer for sludge |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01228516A (en) * | 1988-03-07 | 1989-09-12 | Hitachi Ltd | Treatment of sludge and apparatus therefor |
| JPH0771052A (en) * | 1993-06-25 | 1995-03-14 | Toyo Constr Co Ltd | Dehydration type screw conveyer |
| KR950005818A (en) * | 1993-08-26 | 1995-03-20 | 오재덕 | High Purity Purification of 2-t-Butylimino-3-isopropyl-5-phenyl-tetrahydro-1,3,5-thiadiazin-4-one |
| KR19990046620A (en) * | 1999-04-07 | 1999-07-05 | 김두만 | Drum-type vacuum dryer for sludge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100863540B1 (en) | 2008-03-31 | 2008-10-15 | 금용섭 | Dehydration apparatus |
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