EP1129782A2 - Vertikale Fest-Flüssigtrennvorrichtung - Google Patents

Vertikale Fest-Flüssigtrennvorrichtung Download PDF

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Publication number
EP1129782A2
EP1129782A2 EP00121286A EP00121286A EP1129782A2 EP 1129782 A2 EP1129782 A2 EP 1129782A2 EP 00121286 A EP00121286 A EP 00121286A EP 00121286 A EP00121286 A EP 00121286A EP 1129782 A2 EP1129782 A2 EP 1129782A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
inner cylinder
separating apparatus
outer cylinder
set forth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00121286A
Other languages
English (en)
French (fr)
Other versions
EP1129782A3 (de
Inventor
Hiroshi Kitada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1129782A2 publication Critical patent/EP1129782A2/de
Publication of EP1129782A3 publication Critical patent/EP1129782A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B15/00—Other accessories for centrifuges
    • B04B15/06—Other accessories for centrifuges for cleaning bowls, filters, sieves, inserts, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/205—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with special construction of screw thread, e.g. segments, height

Definitions

  • the present invention relates to a vertical type solid-liquid separating apparatus for separating solid from liquid, in various kinds of sewage or other materials, and collecting each of them.
  • the present invention relates to a vertical type solid-liquid separating apparatus comprising a vertical outer rotary cylinder supported for rotation and an inner rotary cylinder supported for rotation within the interior of the outer rotary cylinder to define an annular separating chamber between both cylinders which are rotated in such a manner that a slight difference in the rotational speed is generated between them by using a differential type speed changer.
  • solid-liquid separation is a basic technology and a method for treating and disposing of contaminants or sewage sludge is important in sewage treatment.
  • a specific feature of sewage sludge is its high content of organic components and water, and therefore, the removal of water by the solid-liquid separation is important for the purpose of attaining "weight reduction and stability" which is a basic principle for obtaining a waste product.
  • the sludge is inevitably generated by the sewage treatment, the need for place for the purpose of reclaimed land will be infinite if the final disposal relies only on use for reclaimed land and it will soon encounter the difficulty in availability thereof. In fact, securing of land to be used for the final disposal has become difficult from year to year.
  • sewage sludge Because resources of the earth are finite, the effective use of sewage sludge is a socially important problem.
  • the sewage itself can be a source of valuable organic matter if contaminants are removed therefrom.
  • inorganic matter can be used as raw material, for suitable applications, and water separated from the solid matter is usable again after being subjected to a chemical treatment.
  • An object of the present invention is to improve the above-mentioned prior art solid-liquid separating apparatus by providing a solid-liquid separating apparatus comprising an outer rotary cylinder and an inner rotary cylinder which rotate in the same direction where the outer rotary cylinder rotates faster than the inner rotary cylinder with a slight difference in rotational speed between the cylinders, in a predetermined range, and wherein the separating apparatus is capable of accurately adjusting the slight rotational speed difference between the outer and inner rotary cylinders.
  • a vertical type solid-liquid separating apparatus comprising: a frame; an outer cylinder supported on the frame rotatably about a vertical axis; an inner cylinder coaxially and rotatably disposed within the outer cylinder to define an annular separating chamber between an inner wall of the outer cylinder and an outer circumference of the inner cylinder; a screw blade fixedly attached to the outer circumference of the inner cylinder so that a small gap remains between the screw blade and the inner wall of the outer cylinder; means for supplying an original liquid into the separating chamber; means for discharging a separated, cleaned liquid from an upper part of the separating chamber; means for discharging a sludge from a lower part of the separating chamber; and driving means comprising a first motor for driving one of the outer and inner cylinders, a planetary means connected to both the outer cylinder and the inner cylinder, and a second motor for setting a speed difference of the planetary means, so that the driving means rotate the outer and inner cylinder
  • the outer cylinder comprises a vertically cylindrical upper half having a substantially constant inner diameter and a tapered lower half having an inner diameter which is gradually reduced in the downward direction
  • the inner cylinder comprises a vertically cylindrical upper half having a substantially constant outer diameter and a tapered lower half having an outer diameter which is gradually reduced in the downward direction.
  • the original liquid supplying means comprises a pipe extending in the inner cylinder along a vertical axis about which the inner cylinder rotates.
  • the inner cylinder is provided with an annular chamber between the upper half and the lower half thereof, the lower end of the pipe is opened to the annular chamber, and the annular chamber is provided with a plurality of radially arranged distributor plates between which a plurality of radial passages are defined, so that the original liquid is supplied from the pipe, through the annular chamber and the radial passages to the annular separating chamber defined between the outer cylinder and the inner cylinder.
  • Each of the separating plates has a such a shape that the vertical dimension thereof is increased at the radially outward end.
  • the screw blade has a substantially constant pitch on the upper half of the inner cylinder and, on the other hand, the pitch is gradually reduced on the tapered, lower half of the inner cylinder.
  • the screw blade has a double spiral shape.
  • the planetary means comprises an internal sun gear, a planetary gear engaged with the internal sun gear, an external sun gear engaged with the planetary gear and coaxially arranged with the internal sun gear, and a carrier for rotatably supporting the planetary gear.
  • the first motor is connected to the internal sun gear and to the outer cylinder, the second motor is connected to the external sun gear, and the carrier is connected to the inner cylinder.
  • the planetary means comprises a plurality of planetary gear pieces which are arranged equi-angularly around and respectively engaged with the external sun gear.
  • a speed reduction ratio of the planetary means is 1/200 so that the rotational speed ratio between the outer cylinder and the inner cylinder is 3000:2999, if the first motor rotates at 3000 rpm and the second motor rotates at 2800 rpm.
  • the planetary means comprises: a wave-generator comprising an elliptic cam and a circumferential bearing for the elliptic cam; a flex-spline made of elastic metal and having an inner circumference in contact with the wave-generator by means of the bearing and an outer circumference provided with gear teeth; and a circular spline having an inner circumference with gear teeth arranged at same pitch as the gear teeth of the flex-spline.
  • the first motor is connected to the circular-spline and to the outer cylinder, the second motor is connected to the wave-generator, and the flex-spline carrier is connected to the inner cylinder.
  • the number of gear teeth of the circular-spline is two more than the number of gear teeth of the flex-spline carrier.
  • a vertical type solid-liquid separating apparatus comprising: a frame; an outer cylinder supported on the frame rotatably about a vertical axis; an inner cylinder coaxially and rotatably disposed within the outer cylinder to define an annular separating chamber between an inner wall of the outer cylinder and an outer circumference of the inner cylinder; a screw blade fixedly attached to the outer circumference of the inner cylinder so that a small gap remains between the screw blade and the inner wall of the outer cylinder; means for supplying an original liquid into the separating chamber; means for discharging a separated, cleaned liquid from an upper part of the separating chamber; means for discharging a sludge from a lower part of the separating chamber; means for driving the outer and inner cylinders so that the outer and inner cylinders are rotated in a same rotational direction and a rotational speed of the outer cylinder is slightly larger than that of the inner cylinder and a difference in rotational speed is set within a certain limited
  • the cleaning means comprises a conduit provided in the inner cylinder for supplying cleaning water or air and a plurality of nozzles connected to the conduit for injecting the cleaning water or air from the outer circumference of the inner cylinder toward the inner wall of the outer cylinder.
  • the nozzles are inclined so that the cleaning water or air is injected at an acute angle with respect to the inner wall of the outer cylinder.
  • a vertical type solid-liquid separating apparatus 1 includes an outer rotary cylinder 2, screw blades 5, an annular separating chamber, an inner rotary cylinder 3 to which distributor plates 4 are attached, an original liquid supply pipe 6, cleaned liquid exits 7, a sludge exit 8 and a drive 9 for the outer and inner rotary cylinders.
  • the outer rotary cylinder 2 is rotatably supported by the apparatus frame and constituted by a vertical cylindrical upper half 2a whose inner diameter is substantially constant and a tapered cylindrical lower half 2b whose inner diameter becomes smaller downward, both the halves being continuously formed integral with each other.
  • the inner rotary cylinder 3 is coaxially and rotatably supported in the interior of the outer rotary cylinder 2, and has an upper half 3a corresponding to the vertical cylindrical upper half 2a of the upper rotary cylinder 2, a lower half 3b corresponding to the tapered lower half 3b of the outer rotary cylinder and four distributor plates 4a, 4b, 4c and 4d radially disposed for connecting both the halves and transporting a liquid flow received therein while distributing the same in the vertical direction.
  • a slope of a predetermined angle is formed at each opposed end surface of the upper half 3a and the lower half 3b of the inner rotary cylinder 3, and four grooves 3c are radially formed for fixing the distributor plates on both the slopes in correspondence to the latter.
  • Each of the four distributor plates 4 is of a shape diverging outward so that upper and lower edges thereof are fixedly fitted to the above-mentioned grooves 3c. As shown in Figs. 3(a) and 3(b), these distributor plates 4 are arranged equi-angularly at 90°. Also, a vertical dimension of each distributor plate 4 is increased radially outward.
  • annular separating apparatus chamber having a generally constant width in the diametrical direction is formed between the inner circumference of the outer rotary cylinder 2 and the outer circumference of the inner rotary cylinder 3.
  • the annular separating apparatus chamber is of a shape wherein the upper half thereof is substantially cylindrical and the lower half is gradually converged downward in correspondence to the outer rotary cylinder 2 and the inner rotary cylinder 3.
  • the screw blades 5 are fixedly secured to the outer circumference of the inner rotary cylinder 3 to define a small gap between the outer peripheral edge thereof and the inner circumference of the outer rotary cylinder 2.
  • the screw blades 5 are of a double-spiral structure wherein two spiral blades are arranged at an angular distance of 180 degrees. That is, if the inner rotary cylinder 3 rotates once, the spiral advances by two pitches. Also, the screw blades 5 are arranged at a constant pitch in the upper half 3a of the inner rotary cylinder, and the pitch becomes smaller downward in the tapered lower half 3b, as shown in Fig. 2.
  • the original liquid supply pipe 6 extends downward from above the inner rotary cylinder 3 along a center line thereof and has an opening at the lower end of the upper half 3a of the inner rotary cylinder 3.
  • Water and air are used for rinsing and drying the interior of the apparatus 1, improving the cleaning degree of removed cleaned liquid or facilitating the reduction of a water content in solid matter, and are supplied via a pipe 13 extending upward from beneath the lower end of the inner rotary cylinder 3 along a center line thereof and injected from tip nozzles 14 obliquely provided in the inner rotary cylinder 3 toward the inner wall of the outer rotary cylinder 2.
  • the tip nozzles 14 are provided at positions between the adjacent screw blades 5 while directed to the outer rotary cylinder 2 at an angle as acute as possible so that water or air impinges thereon in the upward/downward direction. If an improvement in the cleaning degree is desired, water is injected, while if the reduction of water content in solid matter is desired, air is ejected. Upon the completion of solid-liquid separation, the interior of the apparatus 1 is first rinsed with water and, then, air is supplied to dry the interior of the apparatus 1.
  • a plurality of cleaned liquid exits 7 having a structure capable of adjusting the degree of opening are provided in a top plate of the outer rotary cylinder 2 along the upper peripheral edge of the upper half 2a of the outer rotary cylinder 2.
  • the sludge exit 8 is formed at the lower end of the outer rotary cylinder 2 for discharging sludge which is a solid component resulted from the solid-liquid separation and discharged out from the lower end of the outer rotary cylinder 2.
  • the outer rotary cylinder 2 and the inner rotary cylinder 3 are made to rotate in the same direction so that the outer rotary cylinder 2 move slightly faster than the inner rotary cylinder 3 while maintaining a speed difference in a predetermined range.
  • a planetary mechanism 20 and two motors 21, 22 are used.
  • a planetary gear mechanism 20 includes a sun internal gear 23, a plurality of (three in the illustrated embodiment) planet gears 24 arranged at an equal angular pitch to be intermeshed with the sun internal gear 23, a sun external gear 25 arranged coaxially with the sun internal gear 23 to be intermeshed with the planet gears 24, and a carrier 26 for supporting the planet gears 24 in a rotatable manner.
  • the main motor (first motor) 21 is directly coupled to the sun internal gear 23 of the planetary gear mechanism 20 and is also connected to the outer rotary cylinder 2 via a gear or a pulley.
  • the differential speed motor (second motor) 22 is directly coupled to the sun external gear 25 of the planetary gear mechanism 20.
  • the carrier 26 of the planetary gear mechanism 20 is coupled to the inner rotary cylinder 3 via a gear or a pulley.
  • the difference in rotational speed between the outer and inner rotary cylinders 2 and 3 is preset to be an extremely small value. For example, if a reduction ratio is 1/200, the rotational speed of the outer rotary cylinder 2 is 3,000 rpm and that of the inner rotary cylinder 3 is 2,999 rpm, wherein the main motor 21 rotates at 3,000 rpm and the differential speed motor 22 rotates at 2,800 rpm.
  • Figs. 6(a) and 6(b) illustrate another embodiment of a planetary mechanism.
  • the planetary mechanism 30 includes a wave generator 31, a flex-spline (elastic gear) 34 and a circular spline (internal gear) 36.
  • the wave generator 31 includes an elliptic cam 32 and a circumferential bearing 33.
  • the flex-spline 34 is formed of a thin-walled cup-like elastic metal brought into contact with the wave generator 31 via the bearing 33 by the inner circumference thereof and provided with gear teeth 35 of an involute type on the outer circumference thereof.
  • the circular spline 36 is a rigid ring provided with gear teeth 37 on the inner circumference thereof at the same pitch as that of the gear teeth 35 of the flex-spline 34.
  • the number of gear teeth 37 of the circular spline 36 is two more than that of the gear teeth 35 of the flex-spline 34.
  • the main motor (first motor) 21 is coupled to the outer rotary cylinder 2 via a gear or a pulley and also to the circular spline 36 of this planetary mechanism 30.
  • the differential speed motor (second motor) 22 is mounted to the upper part of the apparatus and directly coupled to the wave generator 31 of this planetary mechanism 30, unlike the preceding embodiment.
  • This planetary mechanism 30 is directly coupled to the inner rotary cylinder 3.
  • the outer and inner rotary cylinders 2 and 3 are made to rotate in the same direction while maintaining an accurate difference in rotational speed between both the cylinders so that the outer rotary cylinder 2 is only slightly faster than the inner rotary cylinder 3.
  • the original liquid, containing solid substances, supplied from the original liquid pipe 6 reaches the lower end of the upper half 3a of the inner rotary cylinder 3 and is equally distributed by the four distributor plates 4 arranged at the same pitch in the circumferential direction. At this time, the solid matter in the original liquid is finely cut due to the high speed rotation, which facilitates the performance for solid-liquid separation to a great extent and improve the cleaning degree of discharged liquid.
  • Liquid and solid in the original liquid smoothly supplied to the screw blades 5 are separated from each other upward and downward, respectively, during the rotation of the screw blades 5, and the cleaned liquid 11 is discharged outside the apparatus from the upper cleaned liquid exits 7, while the sludge 12 is discharged outside the apparatus from the lower sludge exit 8.
  • the planetary gear mechanism 20 and the two motors 21, 22 are used for setting the accurate slight difference in rotational speed between the outer and inner rotary cylinders 2 and 3.
  • the difference in rotational speed between both the cylinders 2, 3 is extremely accurately maintained to always separate sludge as a solid component from cleaned liquid at a desired ratio.
  • vibration is low to result in a safe operation and the repair thereof becomes easy.

Landscapes

  • Centrifugal Separators (AREA)
  • Treatment Of Sludge (AREA)
EP00121286A 2000-03-03 2000-10-06 Vertikale Fest-Flüssigtrennvorrichtung Withdrawn EP1129782A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000063343 2000-03-03
JP2000063343A JP2001246291A (ja) 2000-03-03 2000-03-03 差速を利用した立型固液分離装置

Publications (2)

Publication Number Publication Date
EP1129782A2 true EP1129782A2 (de) 2001-09-05
EP1129782A3 EP1129782A3 (de) 2002-08-14

Family

ID=18583224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121286A Withdrawn EP1129782A3 (de) 2000-03-03 2000-10-06 Vertikale Fest-Flüssigtrennvorrichtung

Country Status (4)

Country Link
EP (1) EP1129782A3 (de)
JP (1) JP2001246291A (de)
HK (1) HK1040499A1 (de)
TW (1) TW495365B (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2862633A1 (fr) * 2003-11-21 2005-05-27 Promaiga Dispositif permettant d'evacuer les boues presentes dans un circuit, notamment de chauffage
US20110287920A1 (en) * 2010-05-20 2011-11-24 Kayden Industries Inc. Vertical axis centrifugal separator
US8808154B2 (en) * 2010-09-13 2014-08-19 Hiller Gmbh Drive apparatus in a scroll centrifuge having a gearbox with a housing nonrotatably connected to a drive shaft
CN107008577A (zh) * 2017-06-09 2017-08-04 大连隆田科技有限公司 一种具有自动清洗功能的立式螺旋液固离心机
CN107824343A (zh) * 2017-12-11 2018-03-23 陈永强 一种具有自洁功能的行星离心固液分离器
CN108119075A (zh) * 2018-02-05 2018-06-05 西南石油大学 一种适用于海洋油气开发含油钻屑处理的立式布置结构
CN109046797A (zh) * 2018-10-18 2018-12-21 张家港市蓝鸟机械有限公司 一种立式高速小型卧螺离心机
CN112604820A (zh) * 2020-12-04 2021-04-06 成都高分离心机有限公司 一种卧螺离心机及分离洗涤工艺
CN113787750A (zh) * 2021-08-26 2021-12-14 农业农村部南京农业机械化研究所 一种畜禽粪污交变载荷压榨脱水设备及其脱水方法
CN116943295A (zh) * 2022-04-15 2023-10-27 安徽国蚨环境工程技术有限公司 一种污水处理用清污装置
CN117899550A (zh) * 2024-03-20 2024-04-19 哈尔滨商业大学 一种用于谷物发酵的固液分离机构及固液分离方法
CN118807323A (zh) * 2024-09-14 2024-10-22 河南浩迪农业科技有限公司 一种用于悬浮种衣剂生产过程中的过滤装置

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JP2003326195A (ja) * 2002-05-13 2003-11-18 Kanzaki Kokyukoki Mfg Co Ltd 縦型遠心分離装置
JP4704145B2 (ja) * 2005-08-01 2011-06-15 株式会社シーエムエス 固液分離装置
KR101111490B1 (ko) 2010-03-10 2012-02-22 송윤화 내장형 감속유닛을 갖는 원심분리기
KR101152176B1 (ko) 2010-11-01 2012-06-15 송윤화 내장형 감속유닛을 갖는 원심분리기
CN104998442B (zh) * 2015-08-05 2016-06-08 安吉捷达贸易有限公司 1,3-环己二酮固液精确分离的沉淀罐
JP2017189752A (ja) * 2016-04-15 2017-10-19 日本フローサーブ株式会社 立型固液分離装置
WO2020054881A1 (ko) * 2018-09-10 2020-03-19 주식회사 로얄정공 에너지 절감형 데칸터형 원심분리 탈수기
CN112250263B (zh) * 2020-09-24 2022-07-29 徐州格雷安环保设备有限公司 一种离心式泥浆固化设备
CN119285082B (zh) * 2024-12-13 2025-03-25 潍坊晨铭环保设备有限公司 一种用于污水处理的臭氧氧化处理装置

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Publication number Priority date Publication date Assignee Title
DE2849547A1 (de) * 1978-11-15 1980-05-22 Kloeckner Humboldt Deutz Ag Schneckenzentrifuge
GB2099334B (en) * 1981-05-28 1985-10-02 Westfalia Separator Ag Drive for screw centrifuge
DK47592A (da) * 1992-04-08 1993-10-09 Alfa Laval Separation As Centrifuge
FR2746675B1 (fr) * 1996-03-29 1998-05-07 Guinard Centrifugation Decanteuse centrifuge a module redex
JP3654544B2 (ja) * 1996-07-16 2005-06-02 月島機械株式会社 スクリーン・ボウルデカンタ遠心分離機

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2862633A1 (fr) * 2003-11-21 2005-05-27 Promaiga Dispositif permettant d'evacuer les boues presentes dans un circuit, notamment de chauffage
US20110287920A1 (en) * 2010-05-20 2011-11-24 Kayden Industries Inc. Vertical axis centrifugal separator
US9216422B2 (en) * 2010-05-20 2015-12-22 Kayden Industries Limited Partnership Vertical axis centrifugal separator
US8808154B2 (en) * 2010-09-13 2014-08-19 Hiller Gmbh Drive apparatus in a scroll centrifuge having a gearbox with a housing nonrotatably connected to a drive shaft
CN107008577A (zh) * 2017-06-09 2017-08-04 大连隆田科技有限公司 一种具有自动清洗功能的立式螺旋液固离心机
CN107824343B (zh) * 2017-12-11 2023-09-29 陈永强 一种具有自洁功能的行星离心固液分离器
CN107824343A (zh) * 2017-12-11 2018-03-23 陈永强 一种具有自洁功能的行星离心固液分离器
CN108119075A (zh) * 2018-02-05 2018-06-05 西南石油大学 一种适用于海洋油气开发含油钻屑处理的立式布置结构
CN109046797A (zh) * 2018-10-18 2018-12-21 张家港市蓝鸟机械有限公司 一种立式高速小型卧螺离心机
CN112604820A (zh) * 2020-12-04 2021-04-06 成都高分离心机有限公司 一种卧螺离心机及分离洗涤工艺
CN113787750A (zh) * 2021-08-26 2021-12-14 农业农村部南京农业机械化研究所 一种畜禽粪污交变载荷压榨脱水设备及其脱水方法
CN116943295A (zh) * 2022-04-15 2023-10-27 安徽国蚨环境工程技术有限公司 一种污水处理用清污装置
CN117899550A (zh) * 2024-03-20 2024-04-19 哈尔滨商业大学 一种用于谷物发酵的固液分离机构及固液分离方法
CN117899550B (zh) * 2024-03-20 2024-05-24 哈尔滨商业大学 一种用于谷物发酵的固液分离机构及固液分离方法
CN118807323A (zh) * 2024-09-14 2024-10-22 河南浩迪农业科技有限公司 一种用于悬浮种衣剂生产过程中的过滤装置

Also Published As

Publication number Publication date
HK1040499A1 (en) 2002-06-14
JP2001246291A (ja) 2001-09-11
TW495365B (en) 2002-07-21
EP1129782A3 (de) 2002-08-14

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