KR200155335Y1 - Filtration and dehydration apparatus having belt press with plastic fibers for treating sludge - Google Patents
Filtration and dehydration apparatus having belt press with plastic fibers for treating sludge Download PDFInfo
- Publication number
- KR200155335Y1 KR200155335Y1 KR2019970018821U KR19970018821U KR200155335Y1 KR 200155335 Y1 KR200155335 Y1 KR 200155335Y1 KR 2019970018821 U KR2019970018821 U KR 2019970018821U KR 19970018821 U KR19970018821 U KR 19970018821U KR 200155335 Y1 KR200155335 Y1 KR 200155335Y1
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- South Korea
- Prior art keywords
- dewatering
- roller
- belt
- sludge
- filtration
- Prior art date
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 27
- 238000001914 filtration Methods 0.000 title claims abstract description 26
- 230000018044 dehydration Effects 0.000 title claims description 11
- 238000006297 dehydration reaction Methods 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 title 1
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 7
- 239000000057 synthetic resin Substances 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 210000003746 feather Anatomy 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
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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
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/461—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
- B01D33/646—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- 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
-
- 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
- C02F2303/14—Maintenance of water treatment installations
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
본 고안은 내약품성의 합성수지 세사 즉 미세한 깃털상의 실로 단위 브러쉬편을 형성하여 두터운 다공판으로된 고무밴드상에 일정간격으로 부착시켜 두터운 여과층으로된 탈수여과밸트를 형성하여 재치틀 상에 설치된 여러개의 안내로울러와 장력조절 로울러에 걸어 설치하고 전방에는 상, 하로 프래스 로울러를 설치하여 후방에 설치된 공급구 로부터 탈수 여과밸트 상에 공급된 스러지가 깃털상의 단위 브러쉬편들로 구성된 두터운 여과층으로 구성된 탈수 여과밸트에서 직접 흡수 탈수시킨 다음 전방에 상, 하로 설치한 프래스 로울러에 의하여 강력하게 압착탈수 할수 있게 구성한 것이다.The present invention forms a unit brush piece with chemical-resistant synthetic resin yarn, or fine feather-shaped thread, and attaches it on a rubber band made of a thick porous plate at regular intervals to form a dewatering filter belt made of a thick filtration layer. It is installed on the guide roller and the tension control roller of the roller, and the roller roller is installed up and down in the front, and the sludge supplied on the dewatering filter belt from the supply port installed in the rear is composed of a thick filter layer composed of feather-shaped unit brush pieces. Absorbed directly from the dewatering filter belt, it is configured to be strongly compressed and dehydrated by the front and bottom glass rollers installed up and down.
Description
본 고안은 각종 산업체에서 발생하는 난탈수성 스러지를 보다 효과적으로 처리할 수 있게 하기 위하여 구성한 내약품성의 합성수지 세사(細絲) 즉 깃털상의 미세한 실을 이용한 밸트프레스 오니 탈수 여과장치에 관한 것이다. 종래의 각종의 산업체에서 배출되는 폐수 처리장에서 스러지 탈수 여과장치의 일종으로 사용되고 있는 밸트프레스 탈수 여과장치는 2조의 여과포나 여과망을 재치틀에 상, 하로 걸어 설치하여 상, 하 여과포나 망 사이에 스러지액을 투입하여 여러개의 로울러들을 감싸고 회전이동하게 하여 2조의 밸트의 장력에 의하여 탈수되도록 한 것이나 이는 탈수 여과 과정에서 상, 하 여과포나 망은 스러지의 미립자에 의하여 심하게 오염되어 여과포나 망의 세척장치에서 다량의 고압세척수로 연속적인 세척을 하여야 하고 장력 조절장치에서 강력하게 잡아당겨 주어야 하므로 잡아당기는 힘과 회전려에 의하여 여과포나 망이 쉽게 마모되어 그 수명이 짧으며, 여과포나 망의 궤도 이탈 방지장치가 절대적으로 필요하나 이장치의 잦은 작동 고장으로 인하여 예기치 않은 여과포나 망의 파손사고가 자주 발생하여 항상 불안감을 면할 수 없으며 구동장치, 장력조절장치, 세척장치, 궤도 이탈 방지장치의 시설이 복잡하여 관리하기가 어려울 뿐 아니라 스러지 케익의 함수율을 낮추기 위하여 탈수 로울러로 직접 맞물려 가압하거나 흡인장치로 흡인하게 되면 스러지의 대부분이 여과포나 망으로 빠져 나가는 동시에 여과포나 망은 짧은 시간에 스러지로 오염되어 기능을 상실하고 만다.The present invention relates to a belt press sludge dewatering filtration apparatus using fine chemical-resistant synthetic resin filaments, ie, feather-like fine yarns, which are configured to more effectively treat the hardly dehydrated sludge produced in various industries. The belt press dewatering filtration system, which is used as a kind of sludge dewatering filtration device in the wastewater treatment plant discharged from various industries in the past, is provided with two sets of filter cloths or filtration nets mounted up and down on a mounting frame, The sludge solution was introduced to wrap and rotate several rollers so that they could be dehydrated by the tension of two sets of belts. In the dehydration filtration process, the upper and lower filter cloths or nets were severely contaminated by the sludge particles, and the filter cloth or net was washed. Continuous washing with a large amount of high-pressure washing water in the device and a strong pull in the tension control device, so the filter cloth or net is easily worn out by the pulling force and the rotating rope, and its life is shortened. Protection is absolutely necessary, but due to frequent operating Unstable filter cloth or net breakage accidents frequently occur to avoid anxiety, and it is difficult to manage due to the complicated facilities of driving device, tension adjusting device, washing device, and derailment prevention device, as well as lowering water content of sludge cake. In order to directly engage the dehydration roller to pressurize or aspirate with a suction device, most of the sludge escapes into the filter cloth or net, and at the same time, the filter cloth or net is contaminated with sludge in a short time and loses its function.
그러므로 모든 밸트프레스는 상, 하 여과포나 망의 장력만으로 서서히 진행시켜 여과 탈수하는 이유로 스러지의 처리량이 적고 스러지 케익의 함수율이 낮아질수 없을 뿐 아니라 장치가 복잡하여 항상 운전자의 점검조절이 필요하여 장치를 완전히 밀폐시키지 못하여 탈수실내에 악취가 극히 심하고 불결한 문제점이 있었다.Therefore, all the belt presses are processed slowly with only the upper and lower filter cloth or the net tension, and the filtration and dehydration are not sufficient for the low throughput of sludge and the water content of the sludge cake. There was a problem that the odor was extremely severe and dirty in the dehydration chamber because it was not completely sealed.
본 고안은 위와 같은 문제점을 해결하기 위하여 내 약품성(내 산성, 내 알카리성)의 합성수지 세사 즉 미세한 깃털상의 실로 단위 브러쉬편을 형성하여 두터운 다공판으로된 고무밴드상에 일정간격으로 부착시켜 탈수 여과밸트를 형성하여 재치틀 상에 설치된 여러개의 안내 로울러와 장력 조절로울러에 걸어 설치하고 전방에 상하로 프레스 로울러를 설치하여 후방에 설치된 공급구로 부터 탈수 여과밸트 상에 공급된 스러지가 깃털 상의 단위 브러쉬편들로 구성된 탈수 여과밸트 에서 직접 흡수 탈수시킨 다음 전방에 상하로 설치한 프레스 로울러에 의하여 가력하게 압착 탈수되도록 하기 위한 것이다.In order to solve the above problems, the present invention forms a unit brush piece with synthetic resin yarn of chemical resistance (acid resistance, alkali resistance), that is, a fine feather, and attaches it on a rubber band made of a thick porous plate at regular intervals to dehydrate the filtration belt. And installed on the guide rollers and tension adjusting rollers installed on the mounting frame, and the press rollers are installed up and down in front of the sludge, and the sludge supplied on the dewatering filter belt from the supply port installed at the rear is the unit brush pieces on the feather. Absorbed directly from the dewatering filter belt consisting of dehydration and then by pressing rollers installed up and down in front of the press force to dehydrate.
도1 은 본 고안의 횡단면도,1 is a cross-sectional view of the present invention,
도2 는 본 고안의 요부 발취 사시도,Figure 2 is a perspective view of the main portion of the present invention,
도3 은 본 고안의 A-A선 단면도.3 is a cross-sectional view taken along line A-A of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 깃털상의 실 2 : 협지편 3 : 브러쉬 4 : 고무밴드DESCRIPTION OF SYMBOLS 1 Feather-like thread 2 Narrow strips 3 Brush 4 Rubber band
4a : 유연성봉 5 : 탈수 여과밸트 6 : 재치틀 7 : 안내 로울러4a: flexible rod 5: dewatering filtration belt 6: mounting frame 7: guide roller
8 : 장력조절 로울러 7a,8a : 요입홈 9,9a : 프레스 로울러8: tension control roller 7a, 8a: recessed groove 9,9a: press roller
10 : 스크래퍼 11 : 흡수장치 12 : 세척브러쉬 13 : 세척장치DESCRIPTION OF SYMBOLS 10 Scraper 11 Absorber 12 Cleaning brush 13 Cleaning device
내 약품성(내 산성, 내 알카리성)의 합성수지 세사 즉 미세한 깃털상의 실(1)을 스테인래스 협지편(2)에 일정한 두께와 폭으로 협지시켜 단위 브러쉬편(3)을 형성하여 두터운 다공판으로된 고무밴드(4) 상에 일정간격으로 부착시켜 두터운 여과층을 갖은 탈수 여과밸트(5)를 형성하고 고무밴드(4)의 저면에 수개의 유연성봉(4a)을 종으로 부착시켜 재치틀(6) 상에 설치된 여러개의 안내 로울러(7)와 장력 조절로울러(8)에 형성한 수개의 요입홈(7a)(8a)에 맞물리게 걸어 설치하고 전방에서 탈수 여과밸트(5)의 상, 하에 프레스 로울러(9)(9a)를 설치하여 상부 프레스 로울러(9)의 후방 상부와 탈수여과밸트(5)의 하부에 스크레퍼(10a)를 설치하며, 전방 안내로울러(7)의 후방 탈수 여과밸트(5)의 저면에는 흡수장치(11)를 설치하고 하부 안내 로울러(7)들에 걸려있는 부분의 탈수 여과밸트(5)에는 오물 세척브러쉬(12)와 세척장치(13)를 설치한다. 이와 같이 구성된 본 고안의 장치를 공급구(14)를 갖은 덮개(15)로 완전 밀폐되게 덮는다.Synthetic resin yarn of chemical resistance (acid resistance, alkali resistance), that is, fine feather-like thread (1) is sandwiched on the stainless glass sandwiching piece (2) with a certain thickness and width to form a unit brush piece (3) to form a thick porous plate. The dewatering filtration belt 5 having a thick filtration layer was attached to the rubber band 4 at regular intervals, and several flexible rods 4a were vertically attached to the bottom of the rubber band 4 so that the mounting frame 6 Press rollers are installed on the guide roller (7) and the tension control roller (8) installed on a plurality of engaging grooves (7a) (8a) formed in engagement with the upper and lower of the dewatering filtration belt (5) from the front (9) and (9a) to install the scraper (10a) in the upper rear of the upper press roller (9) and the lower part of the dewatering filter (5), the rear dewatering filtration belt (5) of the front guide roller (7) Install the absorber (11) at the bottom of the lower part of the guide roller (7) The dewatering filtration belt (5) is provided with a dirt washing brush (12) and a washing device (13). The apparatus of the present invention configured as described above is completely covered with a lid 15 having a supply port 14.
위에서와 같이 구성된 탈수 여과밸트(5) 상에 공급구(14)로 부터 공급된 스러지가 깃털상의 가는실로 형성된 단위 브러쉬편(3)들로 구성된 탈수 여과밸트(5)의 모세관 현상에 의하여 직접 흡수 탈수시킨 다음 전방 안내 로울러(7)의 후방에 설치된 흡수장치(11)에 의하여 흡입탈수시킨 스러지가 탈수 여과밸트(5)를 타고 상, 하로 설치한 프레스 로울러(9)(9a)에 들어가 강력하게 압착 탈수되도록 한다.The sludge supplied from the supply port 14 on the dewatering filtration belt 5 configured as described above is absorbed directly by the capillary phenomenon of the dewatering filtration belt 5 composed of the unit brush pieces 3 formed of a fine thread of feathers. After dehydration, the sludge sucked and dehydrated by the absorber 11 installed at the rear of the front guide roller 7 enters the press rollers 9 and 9a installed up and down on the dewatering filter belt 5, and is strongly Allow for compression dehydration.
이때 위에서와 같이 탈수된 스러지 케익은 표면장력이 강한 상부 프레스 로울러(9)에 많은 스러지가 부착되어 상승하게 되면 스크레퍼(10)에 의하여 간편하게 분리 처리되며, 탈수여과밸트(5)에 일부 부착된 스러지를 스크레펴(10a)에 의하여 분리처리 한 후 탈수여과밸트(5)는 세척 브러쉬(1)와 세척장치(13)에 의하여 깨끗하게 세척된다.At this time, the dewatered sludge cake is easily separated and treated by the scraper 10 when a lot of sludge is attached to the upper press roller 9 having a strong surface tension and is partially attached to the dewatering filter 5. After the sludge is separated by the scraper 10a, the dewatering belt 5 is cleaned by the cleaning brush 1 and the cleaning device 13.
미설명 부호 16은 모우터 이다.Reference numeral 16 is a motor.
본 고안은 모우터(16)에 의하여 구동되는 탈수 여과밸트(5) 상에 공급구(14)로 부터 공급된 스러지가 내 약품성(내 산성, 내 알카리성)의 합성수지 세사 즉 미세한 깃털상의 실(1)을 스테인래스 협지편(2)에 일정한 두께와 폭으로 협지시켜 단위 브러쉬편(3)을 형성하여 두터운 다공판으로된 고무밴드(4)상에 일정간격으로 부착시켜 두터운 여과층으로 형성된 탈수 여과밸트(5)에서 모세관 현상에 의하여 직접 흡수 탈수시키게 되고 그 다음에는 전방 안내 로울러(7)의 후방에 설치된 흡수장치(11)에 의하여 함수율이 더욱 낮아지게 흡입 탈수 시킨다. 이와같이 탈수 여과된 스러지가 탈수 여과밸트(5)를 타고 상, 하로 설치한 프레스 로울러(9)(9a)에 들어가 강력하게 압착 탈수되도록하였기 때문에 스러지 케익은 함수율이 극히 낮아진다.The subject innovation is that the sludge supplied from the supply port 14 on the dewatering filtration belt 5 driven by the motor 16 is synthetic resin yarn of chemical resistance (acid resistance, alkali resistance), that is, fine feather-like yarns (1). Dehydration filtration formed of a thick filtration layer by sandwiching the sheet) into the stainless steel clamping piece (2) with a certain thickness and width to form a unit brush piece (3) and attaching it to the rubber band (4) made of a thick porous plate at regular intervals. The belt 5 is directly absorbed and dehydrated by capillary action, and then sucked and dewatered to further lower the moisture content by the absorber 11 installed at the rear of the front guide roller 7. The sludge cake has a very low moisture content because the dewatered and filtered sludge enters the press rollers 9 and 9a installed up and down on the dewatering filter belt 5 and is strongly compressed and dehydrated.
이때 위에서와 같이 탈수된 스러지 케익은 표면장력이 강한 상부 프레스 로울러(9)에 부착되어 상승하게 되므로 스크레퍼(10)에 의하여 분리 처리할 수 있으며, 탈수여과밸트(5)에 일부 부착된 스러지를 스크레퍼(10a)에 의하여 분리처리 시킨 후 탈수 여과밸트(5)는 세척 브러쉬(1)와 세척장치(13)에 의하여 깨끗하게 세척되므로 세척수나 고압 샤워장치를 필요로하지 않으므로 스러지의 처리량이 감소되거나 함수율이 높아지는 일이 거의 없다.At this time, since the dewatered sludge cake is attached to the upper press roller 9 having a strong surface tension, the sludge cake may be separated and processed by the scraper 10, and the sludge partially attached to the dewatering filter belt 5 may be removed. After the separation process by the scraper (10a), the dewatering filtration belt (5) is cleaned by the cleaning brush (1) and the cleaning device (13), so it does not require the washing water or high-pressure shower, so the throughput of sludge is reduced or water content This rarely happens.
그리고 고무밴드(4)의 저면에 수개의 유연성봉(4a)을 종으로 부착시켜 안내 로울러(7)와 장력 조절로울러(8)에 형성된 수개의 요입홈(7a)(8a)에 맞물려 설치되어 있어 탈수 여과밸트(5)가 궤도를 이탈하는 일이 거의 없어서 궤도 이탈 방지장치를 설치하지 않으므로 구조가 간단하여 고장율이 극히 적기 때문에 덮개(15)를 덮어 밀폐 시킬 수 있어 악취가 극히 적어 청결한 환경에서 스러지 탈수 여과처리를 할수 있는 이점이 있는 것이다.In addition, several flexible rods 4a are vertically attached to the bottom of the rubber band 4 so as to be engaged with several recessed grooves 7a and 8a formed in the guide roller 7 and the tension adjusting roller 8. Since the dewatering filtration belt (5) rarely leaves the track and no track departure prevention device is installed, the structure is simple and the failure rate is extremely small. There is an advantage that can be treated with geodehydration.
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| Application Number | Priority Date | Filing Date | Title |
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| KR2019970018821U KR200155335Y1 (en) | 1997-07-16 | 1997-07-16 | Filtration and dehydration apparatus having belt press with plastic fibers for treating sludge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100865679B1 (en) | 2008-06-11 | 2008-10-29 | (주)동일캔바스엔지니어링 | Filter cloth washing device of belt press |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100805377B1 (en) * | 2006-12-04 | 2008-02-22 | (주)케이비시스템 | Separator between solid material and liquid of food waste leachate |
| KR100811599B1 (en) * | 2007-10-22 | 2008-03-11 | 지유 주식회사 | Sludge scrapping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100865679B1 (en) | 2008-06-11 | 2008-10-29 | (주)동일캔바스엔지니어링 | Filter cloth washing device of belt press |
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