WO2002020121A2 - Sedimentationsfilteranlage - Google Patents
Sedimentationsfilteranlage Download PDFInfo
- Publication number
- WO2002020121A2 WO2002020121A2 PCT/DE2001/003486 DE0103486W WO0220121A2 WO 2002020121 A2 WO2002020121 A2 WO 2002020121A2 DE 0103486 W DE0103486 W DE 0103486W WO 0220121 A2 WO0220121 A2 WO 0220121A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sedimentation
- filter
- container
- process liquid
- filter system
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0006—Settling tanks provided with means for cleaning and maintenance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0045—Plurality of essentially parallel plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0057—Settling tanks provided with contact surfaces, e.g. baffles, particles with counter-current flow direction of liquid and solid particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0069—Making of contact surfaces, structural details, materials therefor
- B01D21/0072—Means for adjusting, moving or controlling the position or inclination of the contact surfaces, e.g. for optimising the particle-liquid separation, for removing the settled particles, for preventing fouling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/009—Heating or cooling mechanisms specially adapted for settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2444—Discharge mechanisms for the classified liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
- B01D21/2455—Conveyor belts
Definitions
- the invention relates to a continuously operating sedimentation filter system for cleaning contaminated process liquid such as coolant, hydroforming water, drilling, rolling, grinding and rotating emulsions, washing water and the like, consisting of a sedimentation container with a plurality of plate-like, arranged inclined at a distance from one another in parallel running filter plates forming a filter body, a discharge device for the deposited sediment, a feed opening into the sedimentation tank for introducing contaminated process liquid and a clean tank connected to an overflow of the sedimentation tank for holding the cleaned process liquid.
- contaminated process liquid such as coolant, hydroforming water, drilling, rolling, grinding and rotating emulsions, washing water and the like
- Sedimentation filter systems are used to clean process liquids that are contaminated by particles during a production or processing process, the specific weight of which is higher than that of the actual process liquid. These particles settle in a container due to the force of gravity acting on them and form a so-called sediment, which must be removed from the settling container by means of suitable devices.
- plate-like filter lamellae are arranged at an incline inside the sedimentation container and are spaced apart from one another by spacers.
- the described arrangement of the filter lamellae drastically reduces the settling path for the individual particles and amounts to approximately 5 to 15 mm in known systems.
- the sediment deposited on the filter lamellae is removed by blowing pipes located below the filter body, whereby in larger systems the filter lamellae can be brought into a vertical position by suitable adjusting devices for blowing off the sediment.
- the thickened particle cake then sinks from the filter lamella to the bottom of the settling container, from where it is removed with scraper belts or similar discharge devices.
- the process liquid to be cleaned is fed in by means of a pipeline next to the filter body, so that the process liquid mainly flows laterally into the filter body.
- the supply lines have adequately dimensioned ventilation lines. Since a lower liquid level is advantageous when cleaning the filter lamellae using compressed air, this can be set using pumps.
- the cleaned process liquid passes through an overflow in the sedimentation tank into a clean tank, from where it can be fed back to the corresponding processing or production process.
- the process liquid to be cleaned is passed to the side next to the bwz. pipeline opening in front of the filter body with a comparatively small flow cross-section.
- the free space formed underneath the filter body is relatively low in existing systems, since the aim was to achieve a low overall height for the overall system.
- the filter systems described have a low throughput and are susceptible to faults when the process liquid is loaded with dirt.
- the invention is therefore based on the object of creating a reliably working sedimentation filter system with increased throughput.
- This object is achieved according to the invention in that, for supplying the process liquid into the sedimentation container, at least two connecting pieces opening on opposite sides of the container next to or in front of the filter lamellae are provided that between the underside of the A sedimentation chamber filled with liquid is provided in the filter body and the bottom of the sedimentation container, the vertical height of which is at least one fifth of the vertical height of the filter body, and a flow guide plate is provided between the filter body and the connecting piece, which forcibly directs the supplied process liquid into the settling space.
- the flow velocity of the medium flowing into the settling tank is at least halved with the same pipeline diameters, this effect being able to be increased by enlarged pipe cross sections.
- the direction of flow in front of the sedimentation space is opposite, so that only locally limited flow vortices occur which only insignificantly reduce the sedimentation rate of the dirt particles.
- this measure prevents sediment which has already settled from being whirled up again in the region of the filter body.
- the flow baffle provided between the filter body and the connection piece first separates the inflowing process liquid from the filter body and leads it into the settling space below the filter fins, from where the filter body flows through from bottom to top. By reducing the flow velocity, larger dirt particles have already settled. Increasing the height of the settling space also helps to calm the turbulent flow so that less sediment is whirled up.
- the connecting pieces opening laterally next to or in front of the filter body can be widened in a box-like manner to further reduce the inflow speed, the connecting pieces preferably being inclined into the sedimentation chamber in order to avoid pre-sedimentation in the connecting pieces. Due to the inclined position of the connecting piece, sediment that settles out slips into the settling tank and can be removed there with the help of the scratch tape mentioned. This measure is particularly important when the process liquid is very dirty.
- a pneumatic drive or. Swiveling device is used, which swivels the individual filter lamellae from the inclined working position into the vertical position.
- the filter plates consist, for example, of steel plates which are seated in a sawtooth-like receptacle and can be pivoted by means of the drive device mentioned, which engages at the upper end of the filter plates.
- the receptacle for the filter lamellae is preferably arranged approximately centrally on both sides of the filter body. As a result, the slats are pivoted about a central pivot point when vertical, so that the necessary adjustment forces are minimized.
- driver plates can be provided in front of, behind and between the lamellae, which bear against the lamellae or their spacers and are articulatedly connected to the pivoting device with their upper ends.
- the slats are tilted at the same time by synchronously pivoting these driver plates around their pivot point.
- a further embodiment of the invention provides for a plurality of blowpipes to be arranged below the filter body and to be controlled via individual valves.
- the blowing pressure is about three to six bar.
- the blowpipes can preferably be pressurized at both ends with compressed air. This also improves the cleaning effect on the filter lamellae.
- an unbalance shaker can also be provided which acts on the filter lamellae or the driver plates.
- the discharge device for removing the settled sediment from the bottom of the settling space is preferably designed as a so-called scraper belt.
- This scraper belt consists of several discharge bars arranged parallel to each other, which are carried by two chain guides and pulled over the floor of the settling area.
- spacing guides running transversely to the discharge webs can be provided, between which a permanent sediment layer, which also minimizes wear, is deposited.
- the scraper belt is preferably guided and deflected in the settling container with the aid of cylindrical rollers, the rollers having grooves in which the drive chains engage in a form-fitting manner.
- the chains are driven synchronously by means of corresponding pinions, the deflection of the scraper belt from its horizontal running area in the bottom of the container in the obliquely upward discharge direction using two rollers or pinions which are arranged offset in height from one another. In this way, the deflection angle is increased, which has a considerable advantage with regard to the smooth running of the chain and reduces the overall wear of the scraper belt.
- scraper devices are preferably provided at the upper deflection point of the scraper belt, which, for example, consist of pendulum-mounted scrapers that automatically lay on the discharge ridges and relative to the discharge ridges as the conveyor continues Move the chain so that the sediment deposited or extracted there is stripped off and can fall into a collecting container set up below the scraper belt.
- a suction pump e.g. a suction pump, a skimmer or an oil discharge belt with rib-shaped scrapers arranged at a distance from one another can be provided. So that the floating foreign oil can be wiped off as completely as possible, web-like oil barriers can be provided on both sides of the oil discharge belt, which rise in the direction of the overflow weir for the foreign oil. This prevents the oil from floating away to the side and achieves almost complete removal.
- the filter system for maintaining the physical-chemical influencing variables can have additional units such as coolers, heaters, metering pumps and the like, which are optionally provided in an additional tank.
- spacers for the filter lamellae are spacer strips running parallel to one another, so that preferred sedimentation in the longitudinal direction of the filter lamellae is avoided.
- the cleaning of the filter body can be simplified by an additional tank arranged between the sedimentation container and the clean tank.
- the additional tank has e.g. V-shaped slope and one or more pumps that pump out the sludge that settles at the deepest point and e.g. can convey to the inlet area of the sedimentation container.
- the additional tank can have vertically arranged flow baffles that divide it into several chambers. They are used to absorb process liquid from the sedimentation tank when its liquid level is to be lowered to clean the filter lamellae.
- FIG. 1 shows a schematic longitudinal section through a sedimentation filter system according to the invention
- FIG.l in the sedimentation tank in a first embodiment
- 3 shows a cross section through the filter system according to FIG. 1 in the area of the sedimentation container in a second embodiment
- FIG 9 shows a top view and a section through a filter lamella with parallel spacers.
- the sedimentation filter system shown schematically in the drawing figure 1 essentially consists of a sedimentation container 1 with a filter body 2, which is formed from a multiplicity of filter lamellae 3 running parallel to one another and spaced apart. The spacing of the individual filter lamellae 3 from one another is determined via spacer strips 4 which run parallel to one another and which are welded onto the filter lamellae 3 (cf. FIG. 9).
- the process liquid to be cleaned is introduced into the sedimentation tank 1 via a feed line 5 opening on both sides in front of or next to the filter body 2 in the sedimentation tank 1 (cf. FIGS.
- the filter body 2 being passed through an angled separating plate 6 the side walls of the sedimentation container 1 are welded on, separated from the incoming process liquid in such a way that it first flows into the settling chamber 7, which is formed below the filter body 2. From there, the contaminated process liquid rises through the filter body 2 and runs via lateral flow channels 8, 9 (see FIG. 5) via the weir 10 first into an interposed cooler tank 11 with a cooling unit 12 and from there over the weir 13 into the clean tank 14, from where it is again made available to the process circuit with the aid of the supply pumps 15.
- a scraper belt 16 runs in the settling chamber 7 below the filter body 2, the discharge webs 17 (cf. FIG. 6) of which are drawn over the bottom 18 of the sedimentation container 1 in the longitudinal direction of the filter system, take the sediment deposited there and discharge it from the sedimentation container 1 upwards.
- the scraper belt 16 is driven or deflected at the end by pinions 19, 20 and guided by profile rollers 21, 22, which are arranged offset in height from one another, so that the deflection angle between the horizontal running area and the obliquely upward conveying area becomes flatter.
- the roller 23 serves as a tensioning element.
- the supply lines 5 have adequately dimensioned ventilation pipes 25 through which entrained air blows sen, which could lead to foam formation and a disturbance of the sedimentation process within the sedimentation container 1, are effectively removed.
- two lateral oil barriers 26 are provided, through which floating foreign oil is pressed into an oil chamber 27 (see FIG. 5).
- the foreign oil accumulated in the oil chamber 27 can be removed via the oil suction pump 28.
- a dirt pump 29 feeds process liquid and sediment back into the sedimentation tank 1 below the foreign oil.
- Another pump 30 serves as a circulation pump and ensures a constant circulation of the liquid in the sedimentation tank 1 when the system is at a standstill.
- oil can be replenished if emulsions are cleaned in which a prescribed oil / water ratio has to be observed.
- Filter body 2 opens into the sedimentation tank 1, the
- Feed pipes 32, 33 slope into the sedimentation container 1 and have a comparatively large cross section.
- the sedimentation space 7 formed below the filter body 2 has a height that is greater than one fifth of the vertical filter height and in which the scraper belt 16 guided on chains 34, 35 runs.
- the feed pipes 36, 37 are widened like a box, so that the inlet cross section of the process liquid in the sedimentation ons container 1 is again enlarged compared to the embodiment according to Figure 2.
- an adjustment linkage 38 which serves to pivot the filter plates 3.
- the filter plates 3 are combined into individual plate packs 39, 40, between which driver plates 41, 42, 43, 44 are arranged.
- the driver plates and the plate packs are pivotally mounted in an approximately central receptacle 45, the driver plates being connected in an articulated manner to the adjusting linkage 38 at their upper ends.
- an adjusting cylinder 46 By extending an adjusting cylinder 46, the individual driver plates can be pivoted from the inclined operating position into a vertical cleaning position, which is illustrated by the plate pack 40.
- a vibrator (not shown) can engage the linkage 38.
- FIG. 5 shows the position of the oil chamber 27.
- An overflow line 48 which opens below the liquid level, feeds process liquid back into the sedimentation container 1, while an oil cup 49 is used to suck off the foreign oil discharged with the help of the oil suction pump 28 (cf. FIG. 1).
- the scratch tape is there from T-shaped discharge webs 17, which are laterally attached to driver claws 50, which in turn are attached to opposite chain links 51, 52.
- the scraper belt 16 runs in the longitudinal direction of the filter system according to Fig.l to the left over the profile rollers 21, 22, the cross legs 53 of the discharge webs 17 pushing the sediment in front of them or conveying them obliquely upwards to the ripening device 24.
- Such a stripping device 24 is shown in FIG. 7. It essentially consists of a plate 54 bent at the front end, which is arranged between the pinions 19, 20 and is pivotably attached to a holder 56 by means of a joint 55. In a lower position, the bent end 57 of the plate 54 lies on the surface of the transverse leg 53 and, due to the relative movement as the scraper belt 16 continues to run, scrapes sediment 58 deposited there to the left, so that it can fall into a container arranged below the stripping device 24 ,
- the plate 54 then assumes an approximately horizontal, upper position, from which it falls again when it disengages from the upper transverse leg 53, so that the stripping process can be repeated.
- the flap 59 is pivotally mounted on a joint 60 and can be pivoted in a circular manner with the aid of the adjusting cylinder 61 and the angled claw 62 welded to the flap 59, the angled claw 62 being connected in an articulated manner to the adjusting cylinder 61.
- the adjusting cylinder 61 itself is pivotally connected to the joint 63 and can be adjusted with the help of the electric motor 64, so that depending on the position of the Flap 59 gives the desired liquid level in the sedimentation container.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT01980162T ATE262366T1 (de) | 2000-09-11 | 2001-09-11 | Sedimentationsfilteranlage |
DE50101802T DE50101802D1 (de) | 2000-09-11 | 2001-09-11 | Sedimentationsfilteranlage |
CA002421728A CA2421728C (en) | 2000-09-11 | 2001-09-11 | Sedimentation filtration installation |
EP01980162A EP1324812B1 (de) | 2000-09-11 | 2001-09-11 | Sedimentationsfilteranlage |
US10/249,010 US6868974B2 (en) | 2000-09-11 | 2003-03-10 | Sedimentation filtration installation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10044817.8 | 2000-09-11 | ||
DE10044817 | 2000-09-11 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/249,010 Continuation US6868974B2 (en) | 2000-09-11 | 2003-03-10 | Sedimentation filtration installation |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002020121A2 true WO2002020121A2 (de) | 2002-03-14 |
WO2002020121A3 WO2002020121A3 (de) | 2003-02-13 |
Family
ID=7655763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/003486 WO2002020121A2 (de) | 2000-09-11 | 2001-09-11 | Sedimentationsfilteranlage |
Country Status (7)
Country | Link |
---|---|
US (1) | US6868974B2 (de) |
EP (1) | EP1324812B1 (de) |
AT (1) | ATE262366T1 (de) |
CA (1) | CA2421728C (de) |
DE (1) | DE50101802D1 (de) |
ES (1) | ES2218460T3 (de) |
WO (1) | WO2002020121A2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1752254A1 (de) * | 2005-06-29 | 2007-02-14 | Peter Müller | Hochdruckanlage für Kühlschmierstoffe |
US7785474B2 (en) | 2004-12-15 | 2010-08-31 | Orica Australia Pty Ltd | Method for contacting liquid with ion exchange resin |
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DE60032636T2 (de) * | 2000-04-06 | 2007-10-04 | Lisopharm Ag | Verfahren und vorrichtung zur trennung einer mischung von nicht miteinander mischbaren flüssigkeiten |
US7166214B2 (en) | 2004-09-29 | 2007-01-23 | 3Ma Solutions Incorporated | Dental amalgam separator |
US7223298B2 (en) * | 2005-03-17 | 2007-05-29 | Pgr Filters, L.L.C. | Filter assembly for pipelines |
KR100761457B1 (ko) | 2006-03-28 | 2007-10-04 | (주)한맥기술 | 침전장치 |
CA2670911A1 (en) * | 2006-11-28 | 2008-06-05 | Rubicon Research Pty Ltd | Ultrasonic level detection device with flared section for reduced distortion |
US20140151306A1 (en) * | 2012-11-20 | 2014-06-05 | Newterrs Ltd. | Water Treatment Apparatus and Method of Use |
CN103331043A (zh) * | 2013-07-09 | 2013-10-02 | 南京大学连云港高新技术研究院 | 可旋转式斜板沉淀装置的驱动装置 |
CN113577842B (zh) * | 2021-07-05 | 2022-06-24 | 张国军 | 一种煤制乙二醇高盐废水的预处理装置 |
CN114849342B (zh) * | 2022-03-31 | 2023-11-03 | 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 | 一种高效除杂工业水处理装置 |
CN115822484B (zh) * | 2023-02-06 | 2023-05-02 | 山东省煤田地质规划勘察研究院 | 一种水文地质工程地下河流钻探用泥浆池 |
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-
2001
- 2001-09-11 DE DE50101802T patent/DE50101802D1/de not_active Expired - Lifetime
- 2001-09-11 ES ES01980162T patent/ES2218460T3/es not_active Expired - Lifetime
- 2001-09-11 AT AT01980162T patent/ATE262366T1/de active IP Right Revival
- 2001-09-11 CA CA002421728A patent/CA2421728C/en not_active Expired - Fee Related
- 2001-09-11 WO PCT/DE2001/003486 patent/WO2002020121A2/de active IP Right Grant
- 2001-09-11 EP EP01980162A patent/EP1324812B1/de not_active Expired - Lifetime
-
2003
- 2003-03-10 US US10/249,010 patent/US6868974B2/en not_active Expired - Fee Related
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US2254176A (en) * | 1937-12-15 | 1941-08-26 | Dorr Co Inc | Liquid clarification apparatus |
GB925993A (en) * | 1959-01-19 | 1963-05-15 | Kloeckner Humboldt Deutz Ag | A clarifying apparatus for liquids which contain finely divided solids |
US2973866A (en) * | 1959-05-14 | 1961-03-07 | Albert L Genter | Settling tank |
US3194399A (en) * | 1961-05-17 | 1965-07-13 | Henry Mfg Co Inc | Suction filter apparatus |
FR2124494A1 (en) * | 1971-02-05 | 1972-09-22 | Leipzig Chemieanlagen | Effluent treatment tank - for removing light and heavy impurities |
US4238333A (en) * | 1978-10-06 | 1980-12-09 | Tidwell Construction Company | Waste water-oil separator |
US4351733A (en) * | 1980-11-15 | 1982-09-28 | Robert Bosch Gmbh | Process and apparatus for purification of industrial waste water |
EP0198334A2 (de) * | 1985-04-11 | 1986-10-22 | The Budd Company | Klärungsanlage für Wasser und Behandlungsanlage für Abwasser |
US4701260A (en) * | 1985-09-06 | 1987-10-20 | Lee Hyosong M | Device for continuous separation of solid particles from a liquid suspension |
US4957628A (en) * | 1989-05-19 | 1990-09-18 | Schulz Christopher R | Apparatus for gravity separation of particles from liquid |
US5378378A (en) * | 1993-08-23 | 1995-01-03 | Meurer; Charles L. | Method of and apparatus for helical inlet flow |
EP0677315A2 (de) * | 1994-04-11 | 1995-10-18 | Graver Water Company | Automatisches Rückkopplungsregelungssystem und Verfahren für eine Vorrichtung zur Wasserbehandlung |
US5536409A (en) * | 1994-10-25 | 1996-07-16 | Citec International Incorporated | Water treatment system |
US5605636A (en) * | 1995-04-20 | 1997-02-25 | Mcnish Corporation | Liquid clarification device and method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7785474B2 (en) | 2004-12-15 | 2010-08-31 | Orica Australia Pty Ltd | Method for contacting liquid with ion exchange resin |
EP1752254A1 (de) * | 2005-06-29 | 2007-02-14 | Peter Müller | Hochdruckanlage für Kühlschmierstoffe |
Also Published As
Publication number | Publication date |
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EP1324812B1 (de) | 2004-03-24 |
ATE262366T1 (de) | 2004-04-15 |
CA2421728C (en) | 2009-11-10 |
WO2002020121A3 (de) | 2003-02-13 |
US6868974B2 (en) | 2005-03-22 |
DE50101802D1 (de) | 2004-04-29 |
EP1324812A2 (de) | 2003-07-09 |
ES2218460T3 (es) | 2004-11-16 |
CA2421728A1 (en) | 2003-03-10 |
US20030116500A1 (en) | 2003-06-26 |
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