WO2011099691A2 - Appareil de déshydratation et de séchage par évaporation destiné au traitement des boues - Google Patents

Appareil de déshydratation et de séchage par évaporation destiné au traitement des boues Download PDF

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Publication number
WO2011099691A2
WO2011099691A2 PCT/KR2010/008726 KR2010008726W WO2011099691A2 WO 2011099691 A2 WO2011099691 A2 WO 2011099691A2 KR 2010008726 W KR2010008726 W KR 2010008726W WO 2011099691 A2 WO2011099691 A2 WO 2011099691A2
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WO
WIPO (PCT)
Prior art keywords
sludge
roller
high temperature
temperature heating
dewatering
Prior art date
Application number
PCT/KR2010/008726
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English (en)
Korean (ko)
Other versions
WO2011099691A3 (fr
Inventor
김미정
Original Assignee
주식회사 에이케이인터내셔널
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Publication of WO2011099691A2 publication Critical patent/WO2011099691A2/fr
Publication of WO2011099691A3 publication Critical patent/WO2011099691A3/fr

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    • 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
    • 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
    • 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
    • B01D33/66—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by gases or by heating
    • B01D33/663—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by gases or by heating by direct contact with a fluid
    • 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
    • B01D33/66—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by gases or by heating
    • B01D33/666—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by gases or by heating by indirect heat-exchange
    • 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
    • C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • 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
    • 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
    • C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
    • 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
    • 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
    • C02F2303/26—Reducing the size of particles, liquid droplets or bubbles, e.g. by crushing, grinding, spraying, creation of microbubbles or nanobubbles
    • 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

Definitions

  • the present invention relates to a dewatering and evaporation drying apparatus for wastewater sludge treatment, and more particularly, to a dewatering and evaporation drying apparatus for wastewater sludge treatment that can discharge the sludge containing water by compression dehydration and evaporation to dryness.
  • the industrial dewatering device is an industrial device for dewatering and draining the water contained in the sludge generated during the treatment of purified water, sewage, wastewater and the like.
  • the first primary dewatering means 100 is a sludge supply unit. It is supplied between the upper and lower filter belts 110 through 140 and depressurized.
  • reference numerals 120 and 130 are "S" -type belt presses that allow the upper and lower filter belts 110 to be installed in a zigzag.
  • the sludge that passed through the first dehydration means 100 is introduced into the second dehydration means 200, which is the next step, the high temperature heat generating roller 220 consisting of a double roller so that the heat medium is introduced therein, reticular
  • the filter belt 210 is to be rotated along the circumferential surface of the high temperature heat roller (220). And the sludge is introduced and discharged between the high temperature heating roller 220 and the filter belt 210 to further remove the water of the sludge.
  • the apparatus for pressurizing the high temperature heat roller 220 and the filter belt 210 is provided with a caterpillar 240, attach chain bracket 241, attach chain 242, attach plate 243 ,
  • the remaining suction device 250, the steam discharge device 260, the hopper 261 is provided to discharge the sludge moisture.
  • FIG 2 shows a detailed view of the conventional high temperature heating roller, the heating unit 230 is connected to the high temperature heating roller 220 consisting of a double roller is drawn and discharged along the heat medium passage 221 is the structure It is possible to heat transfer to the rotating circumferential surface of the high temperature heat roller (220).
  • the industrial dehydrator as in the prior art has a problem in the filter belt is damaged or sludge treatment efficiency due to the slipping phenomenon caused by the filter belt to drive the high temperature heat roller by friction of the filter belt.
  • the filter belt is damaged by the chain-type caterpillar for pressurizing the filter belt to the high temperature heat roller, and the caterpillar is pressurized entirely to the filter belt which is in contact with the high temperature heat roller, so that the sludge due to the type of sludge and the dehydration process If the amount of imbalance occurs, there has also been a problem in that it does not properly press the filter belt.
  • the present invention has been made in order to solve the above problems, to provide a dewatering and evaporation drying apparatus for wastewater sludge treatment that can directly drive the high temperature heat roller at the correct speed ratio to prevent the slip of the high temperature heat roller and the filter belt. Its purpose is to.
  • Another object of the present invention is to provide a dewatering and evaporation drying apparatus for wastewater sludge treatment.
  • the present invention provides a wastewater sludge treatment dewatering and evaporation drying apparatus in which sludge is introduced between a filter belt and a high temperature heating roller to be evaporated to dry and dehydrated.
  • Sludge supply unit is composed of a crushing roller is provided with a sludge crushed finely
  • the drive roller is provided in the vicinity of the sludge supply unit is directly connected to the motor and coupled to the drive gear on one side, driven on one side so as to interlock rotation with the drive gear
  • a high temperature heat generating roller coupled to a gear
  • a driving unit composed of a filter belt for compressing dewatering and evaporation drying of the sludge introduced from the sludge supply unit while surrounding the circumferential surfaces of the driving roller and the high temperature heat generating roller, and pressing the high heat generating roller.
  • Elastically milled to be separated in the longitudinal direction to separate the sludge It characterized in that it comprises a sludge discharge portion consisting of a plurality of attached
  • the high temperature heating roller, the receiving groove is formed in a straight or zigzag direction along the rotational circumferential surface, characterized in that the plurality of receiving grooves are arranged in the longitudinal direction of the high temperature heating roller.
  • the filter belt is characterized in that it is further provided with a pressure roller to partially adjust the pressing force to the high temperature heating roller.
  • the filter belt is further provided with a tension adjustment portion consisting of a pinion coupled to the shaft over the filter belt, a rack for guiding the pinion left and right, the balance weight to move the pinion left and right to adjust the tension of the filter belt It is characterized by.
  • the sludge discharge portion is characterized in that the plurality of screws are further provided to be movable while the sludge separated from the scraper is crushed.
  • the conventional caterpillar having a pressure roller on the circumferential surface of the high temperature heating roller becomes unnecessary, the caterpillar pressurizing the filter belt to the high temperature heating roller becomes unnecessary, thereby preventing damage to the filtering belt due to friction between the caterpillar and the filtering belt. And there is also an effect that can be partially pressurized as necessary to the filter belt in close contact with the high temperature heating roller by the sludge imbalance.
  • FIG. 1 is a block diagram of an industrial dehydration apparatus having a high temperature heating roller according to the prior art.
  • Figure 2 is a detailed view showing the configuration of a conventional high temperature heating roller.
  • Figure 3 is a block diagram of a dewatering and evaporation drying apparatus for wastewater sludge treatment according to a preferred embodiment of the present invention.
  • FIG. 4 is a plan view of the high temperature heating roller and the driving roller of FIG.
  • Figure 5 (a), (b) is an illustration of the receiving groove of the high temperature heating roller of FIG.
  • Figure 6 (a), (b) is a detail and side view of the pressure roller of Figure 3;
  • Figure 7 is a detail view of the tension control of Figure 3.
  • FIG. 8 is a detail view of the scraper of FIG. 3.
  • FIG. 9 is a detailed view of the sludge discharge portion of FIG.
  • Figure 3 shows the overall configuration of the dewatering and evaporation drying apparatus for wastewater sludge treatment according to a preferred embodiment of the present invention.
  • the present invention is largely provided with a sludge supply unit 100 and a driving unit 200. ) And the sludge discharge part 300.
  • the sludge supply unit 100 is a hopper 120 into which sludge is introduced into the dewatering and evaporation drying apparatus for wastewater sludge treatment from the outside, and the sludge supplied from the hopper 120 is provided below the hopper 120. It is composed of a shredding roller 140 to be shredded to a predetermined size to be supplied to the drive unit (200).
  • the drive unit 200 is largely composed of a driving roller 240, a high temperature heating roller 260 and a filtration belt 280 to compress and dewater and evaporate the sludge supplied from the sludge supply unit 100.
  • the driving roller 240 is to drive the high temperature heat roller 260 and the filter belt 280 is located above the inlet of the high temperature heat roller 260.
  • the inlet portion of the high temperature heat roller 260 refers to a position where the filter belt 280 and the high temperature heat roller 260 are compressed, and a sludge is formed between the high temperature heat roller 260 and the filter belt 280. This is where you will be introduced.
  • the high temperature heating roller 260 is rotatable by receiving power from the driving roller 240 and heat-transfers to the sludge accommodated in the inlet of the high temperature heating roller 260 to evaporate to dry.
  • the high temperature heat roller 260 is composed of a double roller for maintaining a high temperature, the heating system through its internal configuration and the heat medium will be omitted as applied in the same manner as described above in the prior art.
  • the filter belt 280 wraps around the circumferential surfaces of the driving roller 240 and the high temperature heating roller 260 and moves the sludge introduced from the sludge supply unit 100 to the high temperature heating roller 260 to compress and dewater. It is for enabling evaporation and drying, which is the same as a conventional filter belt.
  • the filter belt 280 is positioned so that the sludge passed through the sludge supply unit 100 can be introduced in the horizontal direction with the center point of the high temperature heat roller 260, the high temperature heat roller
  • the circumferential surface of 260 is wrapped in a counterclockwise direction, and then, the circumferential surface of the drive roller 240 is sequentially wrapped in a clockwise direction, thereby rotating while forming an endless track.
  • the filter belt 280 is further provided with a pressure roller 400 to partially adjust the compressive force to the high temperature heat roller 260, so that the partial pressure is made according to the sludge characteristics to improve the drying effect. It can be done.
  • the filter belt 280 to the left and right guide pinion 520, the pinion 520 is coupled to the shaft that is located in the lower direction of the sludge supply unit 100 to the filter belt 280 to adjust the tension.
  • Retention 540, the pinion 520 is moved to the left and right, characterized in that the tension control unit 500 is composed of a balance weight 560 capable of adjusting the tension of the filter belt 280.
  • the sludge discharge part 300 is composed of a plurality of scrapers 320 are elastically in close contact detachably in the longitudinal direction so that the sludge pressed on the high temperature heat roller 260 can be peeled off.
  • the sludge discharge part 300 is located below the drive roller 240 to accommodate not only sludge peeling compressed on the high temperature heating roller 260 but also sludge attached to the filter belt 280. It is desirable to.
  • Figure 4 shows a plan view of the high temperature heating roller and the driving roller of Figure 3, first, as shown, the driving roller 240 is a cylindrical roller rotatable directly connected to the motor 220, the driving on one side Gear 242 is to be coupled, where the reducer 222 is coupled between the motor 220 and the drive roller 240 is preferably able to adjust the rotational speed according to the working environment.
  • the high temperature heating roller 260 is disposed in parallel with the drive roller 240, the driven gear 262 is coupled to one side surface to be engaged with the drive gear 242 to receive power.
  • 5 (a), 5 (b) is an illustration of the receiving groove of the high temperature heating roller of Figure 3, as shown, the high temperature heating roller 260 is a straight line along the rotational circumferential surface [5 (a) ] Or the zigzag [5 (b)] in the receiving groove 264 to be formed.
  • the receiving groove 264 is characterized in that a plurality of the high temperature heating roller 260 is arranged in the longitudinal direction, the sludge capacity is increased as much as the water receiving groove 264 and the heat transfer area of the high temperature heating roller 260 It is possible to widen the sludge treatment efficiency per one revolution of the high temperature heat roller (260) can be increased.
  • the spring 440 is elastically pressed according to the sludge shape to adjust the elasticity of the spring 440
  • To adjust the bolt 420 and the filter belt 280 and the pressure roller 400 of the clearance adjustable stopper 460 is composed of.
  • the spring 440 and the adjustment bolt 420 is a means for pressing the filter belt 280 in the direction of the pressure roller 400 in the high temperature heat roller 260
  • the stopper 460 is the pressure roller 400 is a safety means that can be smoothly rotated by ensuring a minimum clearance to the high temperature heating roller 260 and the filter belt 280 is rotated.
  • FIG. 7 is a detailed view of the tension adjusting unit of FIG. 3, the pinion 520 is integrally connected to the chain bracket 580 by the pinion 520 on the upper portion of the rack 540, and the chain bracket 580 is It is connected to the balance weight 560.
  • a guide bar 590 is provided to allow the balance weight 560 to be vertically guided.
  • the pinion 520 may move left and right by adjusting the weight of the balance weight 560 so that the shaft (not shown) coupled with the pinion 520 may adjust the tension of the filter belt (not shown). Will be.
  • FIG. 8 is a detailed view of the scraper of FIG. 3, the scraper shaft 322 is provided side by side in the longitudinal direction of the high temperature heat roller 260, a plurality of scrapers 320 are the scraper Fitted detachably on the shaft 322, the scraper 320 is provided with a spring 324 to support the elasticity to scrape the sludge after pressing dehydration and evaporation drying to the rotating high temperature heating roller 260 Will be.
  • configuring the scraper 320 in a plurality of separable parts may reduce the cost and time since the scraper 320 may be partially replaced when the scraper 320 is burned out due to friction with the high temperature heating roller 260. It becomes possible.
  • An apparatus for moving the sludge separated from the scraper 320 is further provided, which will be described with reference to FIG. 9.
  • FIG. 9 is a view illustrating an example of the sludge discharge unit 300 of FIG. 3, the sludge discharge unit 300 of FIG. 3 is disposed in a plurality of sludge discharged from the scraper 320 to be movable while being crushed.
  • the dewatering and evaporation drying apparatus for wastewater sludge treatment according to the type of sludge and the user's requirements can be configured in multiple stages.
  • the present invention drives the high temperature heating roller by gear engagement, thereby preventing slippage of the high temperature heating roller and the filter belt, minimizing the damage of the filter belt, and efficiently treating the dewatering and sludge treatment of wastewater sludge. It can be seen that providing the drying apparatus is a basic technical idea, and within the scope of the basic idea of the present invention, many other modifications are possible to those skilled in the art.
  • sludge supply part 120 hopper
  • drive gear 260 high temperature heating roller
  • the present invention can be used in the dewatering and evaporation drying apparatus for wastewater sludge treatment, and more specifically, it can be used in the dewatering and evaporation drying apparatus for wastewater sludge treatment that can discharge the sludge containing water by compression dehydration and evaporation to dryness.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Sludge (AREA)

Abstract

L'invention concerne un appareil de déshydratation et de séchage par évaporation destiné au traitement des boues. Plus particulièrement, l'appareil, dans lequel les boues sont introduites entre une bande filtrante et un rouleau calogène haute température, séché par évaporation, et déshydraté, comprenant une unité d'acheminement de boues, une unité de commande et une unité de décharge de boues. L'unité d'acheminement de boues comprend une trémie dans laquelle la boue est injectée, et un rouleau d'écrasement placé sous la trémie pour écraser la boue. L'unité de commande est disposée à proximité de l'unité d'acheminement de boues, et comprend: un rouleau de commande qui est directement relié à un moteur et à un côté duquel une roue motrice est couplée; un rouleau générant de la chaleur de haute température, à un côté duquel une roue menée est couplée de sorte que cette roue se couple à la roue motrice pour tourner avec elle; et une ceinture de filtrage, qui couvre les surfaces circonférentielles du rouleau d'entraînement et du rouleau générant de la chaleur de haute température, de manière à acheminer la boue provenant de l'unité d'acheminement de boues pour qu'elles puissent être déshydratées par compression et séchées par évaporation. L'unité de décharge de boues comprend plusieurs grattoirs en contact élastique et serré entre eux dans le sens de la longueur du rouleau générant de la chaleur de haute température, de sorte que ces grattoirs puissent être séparés les uns des autres et puissent gratter la boue compressée se trouvant sur le rouleau générant de la chaleur de haute température.
PCT/KR2010/008726 2010-02-12 2010-12-08 Appareil de déshydratation et de séchage par évaporation destiné au traitement des boues WO2011099691A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0013187 2010-02-12
KR1020100013187A KR100976243B1 (ko) 2010-02-12 2010-02-12 폐수 슬러지처리용 탈수 및 증발 건조장치

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WO2011099691A2 true WO2011099691A2 (fr) 2011-08-18
WO2011099691A3 WO2011099691A3 (fr) 2011-11-17

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Families Citing this family (13)

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KR101005086B1 (ko) * 2010-08-13 2010-12-30 주식회사 에이케이인터내셔널 폐수슬러지 처리용 탈수 건조장치
KR101034115B1 (ko) 2010-08-27 2011-05-13 홍원표 슬러지 감량 및 소화가스 증량 장치
KR101135641B1 (ko) * 2011-07-15 2012-04-13 김민지 슬러지 건조장치
KR101156498B1 (ko) * 2012-01-27 2012-06-21 주식회사 화인 유동성에 따라 슬러지의 원활한 투입이 가능한 전기영동식 전기 침투 탈수기
KR101516986B1 (ko) 2013-07-04 2015-05-04 싱너지 코퍼레이션 유한회사 탈수 건조장치의 여과벨트용 스크레이퍼장치
KR101311201B1 (ko) 2013-08-08 2013-09-26 정재식 슬러지 탈수장치
KR101521549B1 (ko) * 2014-07-14 2015-05-19 주식회사 동원에너지 히팅가열유로판을 적용한 폐수처리용 탈수건조장치
SG10201502704VA (en) 2015-04-07 2016-11-29 Singnergy Corp Pte Ltd Apparatus and method for improved evaporation drying
KR101566895B1 (ko) * 2015-05-20 2015-11-09 충청환경산업 주식회사 유격조절장치가 구비된 롤 크러셔
KR101781588B1 (ko) * 2015-06-04 2017-09-25 황명회 저온 슬러지 건조기의 협잡물 제거장치
CN107473563A (zh) * 2017-09-13 2017-12-15 宜兴市建华成套环保有限公司 一种带式压滤机
CN110698036A (zh) * 2019-11-11 2020-01-17 临朐凯盛机电科技有限公司 撬装式热泵污泥烘干一体机
KR102639149B1 (ko) 2023-11-02 2024-02-21 주식회사 에이비파트너스 오폐수 슬러지를 친환경 재료로 재활용 하기 위한 탈수 및 건조장치

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KR20020081007A (ko) * 2001-04-18 2002-10-26 김용훈 탈수효율을 높인 고압 탈수기
KR200278866Y1 (ko) * 2002-03-06 2002-06-21 김연철 벨트 프레스
KR100877414B1 (ko) * 2008-06-03 2009-01-07 주식회사 아세코테크 고온발열롤러를 구비한 산업용 탈수장치

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