WO1995019212A1 - Dispositif de nettoyage de solides contenus dans des eaux residuaires - Google Patents

Dispositif de nettoyage de solides contenus dans des eaux residuaires Download PDF

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Publication number
WO1995019212A1
WO1995019212A1 PCT/EP1995/000112 EP9500112W WO9519212A1 WO 1995019212 A1 WO1995019212 A1 WO 1995019212A1 EP 9500112 W EP9500112 W EP 9500112W WO 9519212 A1 WO9519212 A1 WO 9519212A1
Authority
WO
WIPO (PCT)
Prior art keywords
solids
water jet
discharge screw
jet nozzle
water
Prior art date
Application number
PCT/EP1995/000112
Other languages
German (de)
English (en)
Inventor
Carsten Raudonus
Werner Speckhaus
Original Assignee
Noggerath Holding Gmbh & Co. Kg
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 Noggerath Holding Gmbh & Co. Kg filed Critical Noggerath Holding Gmbh & Co. Kg
Publication of WO1995019212A1 publication Critical patent/WO1995019212A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/128—Vertical or inclined screw presses
    • 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
    • B01D21/0018—Separation of suspended solid particles from liquids by sedimentation provided with a pump mounted in or on a settling tank
    • 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
    • B01D21/2461—Positive-displacement pumps; Screw feeders; Trough conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
    • B03B5/52—Spiral classifiers

Definitions

  • the invention relates to a device for cleaning solids contained in wastewater with a treatment room in which a swirling device for swirling the wastewater is arranged and a discharge device, in particular a discharge screw, for the cleaned solids from the treatment room.
  • WO 93/0100 it is known to feed such solids with organic substances to a container which has a swirling device with the aid of which the organic substances adhering to the solids are to be dissolved and removed with a liquid.
  • the swirling device is formed here by a high-speed vortex wheel arranged on the bottom of the container, which is intended to enable the solids to be washed on the principle of a corrugated wheel washing machine.
  • a discharge screw engages in the container and is intended to lead the washed and whirled up solids out of the container.
  • this known device however, it is disadvantageous that the swirling with a swirl wheel in front of the discharge screw often results in large, interlocked bales of computation material which wind around the swirl wheel and thus block it.
  • the formation of the clogged screenings bale is connected with a blockage of the first spiral passages of a transport spiral of the discharge screw.
  • the invention is therefore based on the object of creating a device of the generic type which is of simple construction and with which continuous operation with improved throughput is possible.
  • the swirling device is formed by a water jet nozzle which has at least one nozzle arm and which generates a vertical roller in a treatment room.
  • the formation of such a vertical roller advantageously makes it possible to optimally wash the material to be cleaned, which is introduced into the treatment space designed as a treatment container, by swirling, that is to say to detach the organic constituents adhering to the surfaces of the solids and feed the cleaned solids directly and continuously to the discharge screw. Due to the continuous swirling of the water and thus the solids contained therein, an additional agglomeration and clogging of the solids is avoided.
  • the water jet nozzle has at least three nozzle arms, of which at least the two outer nozzle arms are arranged at an angle to an axial running through the water jet nozzle.
  • the nozzle arms can also be angled to a horizontal running through the water jet nozzle.
  • the treatment container can be made much wider than the diameter of the discharge screw, since - as already mentioned - even those filled in the edge region of the collecting container and / or by the vertical Rolls of solids are repeatedly conveyed in the direction of the axial of the discharge screw.
  • the throughput of the entire device can be increased, since a much larger volume is available for the treatment of the solids.
  • the nozzle arms of the water jet nozzle protrude into the treatment container over a certain length. It is hereby very advantageously achieved that by choosing this length the nozzle arms can be matched very precisely to the treatment container.
  • the water jets emanating from the individual nozzle arms can be aligned very precisely, so that the targeted axial flow can be achieved even with the most varied of treatment containers.
  • At least one baffle which is preferably formed by unevennesses arranged on an inner wall of the treatment container, is arranged in the treatment container, in the region of a spray region emanating from the water jet nozzles.
  • a transport spiral of the discharge screw is encompassed by a sieve basket forming a sieve region, and below the sieve region the support spiral is encompassed by a support insert.
  • the support insert advantageously extends over a length of approximately one spiral passage of the transport spiral. In this way it is very advantageously achieved that the solids located in the vertical roller in the area of the support insert can be grasped by the discharge screw, so that a better absorption and a blockage-free further transport of the solids is ensured.
  • the support insert carries the transport spiral and thus relieves the strainer basket of the contact pressure of the transport spiral.
  • Both the screen area and the support insert advantageously have an opening on their upper side, which is preferably 30% of the total circumferential area, so that the solids through the vertical roller, in particular through the targeted axial flow of the vertical roller, directly into the receiving area the discharge screw can be rinsed.
  • the discharge screw at an angle of 25 ° to 35 °, in particular 29 °, to an approximately a central axis of the vertical roller running through the treatment container intersecting horizontal is arranged.
  • FIG. 1 shows a longitudinal section through a first embodiment of a device for cleaning solids contained in waste water
  • FIG. 2 shows a top view of a water jet nozzle
  • FIG. 3 shows a longitudinal section through a second exemplary embodiment of a device for cleaning solids contained in waste water
  • Figure 4 shows a cross section through the embodiment shown in Figure 3.
  • Figure 5 is a development of the embodiment shown in Figure 4.
  • Figure 1 shows a device 10 for cleaning solids contained in waste water.
  • the device 10 has a treatment container 12 which is provided with a filling opening 14.
  • the filling opening 14 is here, for example, funnel-shaped and arranged on an upper end of the treatment container 12.
  • the filling opening 14 can, however, just as well be arranged on an end wall or a side wall of the treatment container 12 according to another embodiment, not shown.
  • the arrangement of several filling openings 14 on different sides, for example on an end wall and a side wall of the treatment container 12, is possible.
  • the treatment container 12 has a reaction area 16 and a discharge area 18.
  • the reaction area 16 merges into the discharge area 18 via a step formed by a wall 20 which runs essentially vertically.
  • a water jet nozzle 28 is arranged in the wall 20 and has three nozzle arms 30 directed into the reaction area.
  • the nozzle arms 30 protrude beyond the wall 20 by a selectable length.
  • An inner wall 22 opposite wall 20 is formed in an arc shape within reaction area 16.
  • Baffles 24, which are formed from half-shell-shaped sheets 26, are arranged on the inner wall 22.
  • the sheets 26 each have an impact surface 27.
  • the treatment container 12 also has a discharge screw 32 which passes through the discharge area 18 and opens into the reaction area 16.
  • the discharge screw 32 has a transport spiral 34 which is mounted on a drive shaft 36.
  • the drive shaft 36 partially passes through a pressing device 38 and can be driven by a geared motor 40.
  • the transport spiral 34 is enclosed by a strainer basket 42 on a lateral surface described by the transport spiral 34.
  • the sieve basket 42 is designed in such a way that it only encloses the transport spiral 34 to about 70% and is open in the upper jacket region.
  • the strainer basket 42 is sealed against the container wall 45 of the treatment container in the discharge area 18 by a lateral seal 43, for example by means of rubber strips. This prevents solids to be introduced later from passing the screen basket laterally.
  • the transport spiral 34 is provided on its outer circumference 44 with brushes which grind along the sieve basket 42 when the transport spiral 34 rotates.
  • a watertight support insert 48 is arranged in a transition area 46 between the discharge area 18 and the reaction area 16, which has a length of approximately one spiral passage.
  • the support insert 48 is also open at the top and consists, for example, of a stainless steel jacket with a plastic shell, within which the transport spiral 34 can move freely.
  • a perforation 50 of the strainer basket 42 is open in the direction of the discharge area 18.
  • the discharge area 18 forms an area 52 which has a water drain 54.
  • the water drain 54 can on a not shown Drain line connected, for example leading to a sewage treatment plant.
  • the water jet nozzle 28 can be supplied with washing water via a connection (not shown here). This can be taken, for example, with the interposition of a pump, as mechanically pre-cleaned wastewater from a wastewater channel in the sewage treatment plant directly behind a rake.
  • the coarse impurities (screenings) are separated from the waste water beforehand by the rake. It is also possible to remove the washing water from a secondary clarification stage in the sewage treatment plant.
  • mechanically pre-cleaned and / or pre-clarified wastewater there is no additional water consumption for the screenings washing. There are therefore no ecological disadvantages for the environment, no economic disadvantages for the operator of the device 10 and no additional hydraulic stress for the sewage treatment plant.
  • the transport spiral 34 tapers in the direction of the pressing device 38 and ends at a cavity 56 which begins inside the pressing device 38.
  • the cavity 56 has a smaller cross-sectional area than the cross-sectional area of the transport spiral 34 inside the pressing device 38.
  • the cavity 56 opens into an ejection opening 58, which is arranged over a container (not shown here), for example a container.
  • An outlet opening 60 continues from the cavity 56 and opens into the discharge region 18.
  • the cavity 56 is covered by an outer jacket 62 and the Drive shaft 36 formed.
  • the pressing device 38 is pivotably articulated on the treatment container 12 via a hinge 66.
  • the treatment container 12 is designed to be transportable and can be set up at a selectable location by means of feet 68.
  • the discharge screw 32 is arranged with its longitudinal axis 69 at an angle a to a horizontal which runs through an imaginary central axis 70 of a vertical roller 72 to be explained.
  • FIG. 2 shows a plan view of the treatment container 12 along the section line AA in FIG. 1.
  • the water jet nozzle 28 has three, preferably, but not necessarily, nozzle arms 30 lying on one plane, the outer nozzle arms 30 run at an angle ⁇ to an axial 74 running through the middle nozzle arm 30.
  • the water jet nozzle 28 is arranged such that the axial 74 coincides with the longitudinal axis 69 of the discharge screw 32.
  • the angle ⁇ is selected according to the geometry of the treatment container 12, in particular the reaction area 16, and is designed such that a water jet emerging from the outer nozzle arms 30 also covers the reaction area 16 at its widest point.
  • the jet angle 28 of the outer nozzle arms 30 can also be selected differently.
  • the nozzle arms 30 can also be connected to one another, so that a so-called wide jet nozzle is obtained which has a frustoconical nozzle opening.
  • the device shown in FIGS. 1 and 2 has the following function:
  • the solids 76 to be cleaned are introduced into the treatment container 12 via the filling opening 14.
  • a liquid preferably water, in particular the washing water already mentioned, which is filled up to a water level 78.
  • the water jet nozzle 28 is subjected to a water pressure, so that water jets emanating from the nozzle arms 30 reach the reaction area 16 under a certain pressure.
  • the pump connected to the water jet nozzle 28 can be operated at a pressure of approximately 1 bar.
  • the water jets are directed in the direction of the inner wall 22, the entire width of the wall 22 being acted upon by the water jets due to the angular arrangement of the outer nozzle arms 30.
  • the water jets are deflected by the inner wall 22, so that flow conditions occur within the reaction region 16, which lead to the formation of the vertical roller 72. Due to the water jets emanating from the nozzle arms 30 arranged at an angle ⁇ , the upper part of the tical roller 72 to intersecting flow portions that lead to a targeted axial flow in the direction of the discharge screw 32. In the area of the discharge screw 32, the individual flow portions emanating from the three nozzle arms 30 are quasi brought together, so that the solids moving in the flow of the vertical roller 72 reach the receiving area of the discharge screw 32. The introduced solids 76 are entrained by the flow prevailing in the reaction area 16 and moved within the vertical roller 72. This constant movement of the solids 76 results in good cleaning of the surface of the solids 76 from adhering organic constituents.
  • the solids 76 With the flow, the solids 76, if they are located in an outer region of the vertical roller 72, are thrown against the baffle surfaces 27 provided on the inner wall 22, so that even fixed adherences can be removed by this impact.
  • a baffle surface 27 located further down, that is closer to the water jet nozzle 28, can be used to remove adhesions from smaller solids 76, and a baffle surface 27 further away can be used to remove adhesions from larger solids 76.
  • the solids 76 are entrained against one of the baffles 27 due to their inertia.
  • the baffles 24 simultaneously lead to a better swirling of the mixture of water and solids 76, as a result of which the cleaning of the solids 76 is substantially improved.
  • the orbit of the solids 76 around the central axis 70 is essentially determined in that the amount of wash water supplied by the pump via the water jet nozzle 28 into the reaction area 16 corresponds to the run-off amount of the wash water. This results in a ground water flow from the water jet nozzle 28 through the reaction area 16, the transport spiral 34 and the sieve basket 42 to the water outlet 54.
  • the washed solids 76 are carried along in this flow and deposited within the sieve basket 42. Since the vertical roller 72 is flowed tangentially through the water jet nozzle 28, a suction effect occurs above the water jet nozzle 28, which pulls some of the solids 76 downward and introduces it into the vertical roller 72.
  • the part of the solids 76 which is not captured by the suction effect is flushed into the strainer basket 42 with the ground water flow.
  • the solids 76 can thus optionally make several revolutions with the vertical roller 72. These then enter an orbit around the imaginary central axis 70 of the vertical roller 72, in which the groundwater flow is greater than the suction effect, as a result of which the solids 76 reach the area of action of the discharge screw 32.
  • the solids 76 in the transition area 46 are gripped by the transport spiral 34 and discharged by their rotary movement in the direction of the pressing device 38.
  • the speed of rotation of the transport spiral 34 can be selected by the geared motor 40 and is adjustable depending on the consistency of the introduced solids 76.
  • the solids 76 are caught by the support insert 48 arranged in the transition region 46, so that they can be gripped by the rotating transport spiral 34 without any problems.
  • the support insert 48 has the upper opening, so that the solids 76 can be flushed into this transition region 46 by the vertical roller 72. After the cleaned solids 76 have been captured with the water that did not flow back into the reaction area 16 due to the suction effect, they are moved through the sieve basket 42.
  • the device 10 can achieve good results in the treatment of the solids 76.
  • the solids 76 are predominantly accumulated, which can largely be dissolved in the water bath of the vertical roller 72.
  • the amount of washing water can be regulated according to a further exemplary embodiment.
  • a throttle valve can be arranged in front of the water jet nozzle 28, so that there is always a certain ratio can be produced between supplied solids and wash water exchange in the reaction space 16.
  • the support insert 48 arranged in the transition region 46 ensures, in addition to the improved absorption of the solids 76, further blockage-free transport through the transport spiral 34.
  • the support insert 48 arranged in the transition region 46 ensures, in addition to the improved absorption of the solids 76, further blockage-free transport through the transport spiral 34.
  • the cleaned solids 76 are fed to the pressing device 38, where they are pressed into the cavity 56.
  • a plug-like compression of the solids 76 takes place, so that any residual water that is still present is squeezed out and fed to the discharge area 18 via the outlet opening 60.
  • the device 10 cleans itself during operation.
  • the reaction space 16 is cleaned by the washing water, while the screen basket 42 is cleaned by the brushes arranged on the transport spiral 34.
  • the discharge screw 32 can be pivoted out of the treatment container 12 via the hinge 66. In this way, for example, the general operating state can be checked and / or wearing parts can be replaced.
  • the device 10 can be installed directly on the computing system, so that there is no intermediate transport of the goods accumulated there. Also Installation of the device 10 at a distance from the computer system with mechanical feeding of the solids is possible.
  • the device 10 can also be designed to be mobile and mobile. Via the water jet nozzle 28, water which has been withdrawn behind the computing system can simultaneously be used for cleaning the organic substances. Since this is removed behind the computing system, practically no more solids are contained here.
  • the wash water emerging via the water outlet 54 is returned directly to the sewage treatment plant.
  • the device 10 can be used to remove solids removed from the wastewater very reliably and thoroughly from organic constituents.
  • the organic constituents washed off from the solids 76 are fed to the sewage treatment plant and, for example, are degraded as intended in a biological process.
  • the amount and weight of the discharged solids 76 are considerably reduced by the low-pressure intensive wash. This saves landfill space and relieves waste incineration plants.
  • the throughput of the device 10 can be increased considerably by the continuous operation of the device 10.
  • the configuration of the vertical roller 72 with the intersecting flow components, on the basis of which the reaction region 16 of the treatment container 12 can be made larger also contributes to this.
  • a larger amount of solids 76 can simultaneously can be cleaned without causing problems with the removal of the cleaned solids 76.
  • the treatment container 12 can have a width of 800 mm, for example, while the diameter of the discharge screw 32 is 400 mm, for example.
  • the invention is not limited to the exemplary embodiment shown in FIGS. 1 and 2, but can of course be used for cleaning any good.
  • the low-pressure intensive washing practiced here can be used to remove sand, gravel or the like from surface impurities by means of the irradiated water.
  • the only decisive factor would be to adapt the perforation 50 of the sieve 42 to the material to be cleaned.
  • the solids 76 are poured into the treatment container in batches, then washed intensively and freed from the organic buildup.
  • an adjustable number of back-heating cycles of the transport spiral 34 is provided, with which washed solids 76 already stored in the strainer basket 42 are first conveyed back into the reaction area 16 when a new batch of solids 76 to be cleaned is in the loading area action container 12 is introduced. Only after the preselected backward clocks have elapsed are the washed solids 76 are discharged from the treatment container 12.
  • FIG. 3 shows a further exemplary embodiment of a device for cleaning solids contained in waste water, as has already been described in general with reference to FIG. 1, a vertical roller in turn being produced in the treatment room.
  • the axis of rotation of the vertical roller lies essentially transversely to the direction of injection of the water or the cross-sectional plane of the vertical roller is oriented vertically, that is to say perpendicularly on an imaginary base area of the treatment room.
  • a further description of the features identified by the same reference numerals is therefore omitted.
  • the exemplary embodiment according to FIG. 3 has a half-shell 101 which forms the bottom of the container 12 or the treatment room.
  • This half-shell-shaped bottom 101 which can also be part of a channel, is open toward the filling opening 14 and extends in the longitudinal direction of the container from its end face to the discharge screw 32.
  • the bottom 103 of the half-shell 101 is towards the discharge screw 32 inclined, preferably by an angle of 3 ° with respect to the horizontal, the lower end of the bottom 103 preferably lying in a plane with the lowest point 105 of the discharge screw 32.
  • a water pipe 107 which extends over the entire length of the half-shell 101, is preferably arranged along the half-shell 101 above the opening. In this water line 107 there are several water jet nozzles 109 which are arranged at a distance from one another and correspond to the water jet nozzles 28 described above.
  • the water jet nozzles 109 are oriented such that they preferably introduce water tangentially to a side wall 111 of the half-shell 101.
  • the tangential introduction also creates a vertical roller in the half-shell 101, the longitudinal axis of which, however, in contrast to the previous exemplary embodiment, is directed toward the discharge screw 32.
  • the function of this vertical roller corresponds to that of the vertical roller already described in connection with FIGS. 1 and 2.
  • the water line 107 is preferably continued in the area of the discharge screw 32. Also in this water line section, water jet nozzles 113 can be provided, which introduce water into the transport spiral 34, for example to further improve the washing out.
  • FIG. 4 uses a cross section to show the half-shell 101 just described with the water jet nozzle 109. It can clearly be seen that the water jet nozzle 109 is oriented tangentially to the side wall 111 and injects water into the half-shell from above.
  • FIG. 1 A further arrangement variant of the water jet nozzle 109 is shown in FIG.
  • the water jet nozzle 109 is oriented tangentially to the bottom 105 of the half-shell 101.
  • an opening is provided in the bottom or in the side wall of the half-shell.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Un dispositif de nettoyage de matières, notamment de matières solides contenues dans des eaux résiduaires, comprend une chambre de traitement qui contient un dispositif qui fait tourbillonner les eaux résiduaires et un dispositif de décharge, notamment une vis convoyeuse, pour enlever les matières solides nettoyées de la chambre de traitement. Le dispositif de tourbillonnement est constitué d'un ajutage (28) pourvu d'au moins un bras (3)qui génère un jet d'eau et qui fait tourbillonner verticalement (72) l'eau dans la chambre de traitement avec une composante d'écoulement orientée vers la vis convoyeuse.
PCT/EP1995/000112 1994-01-13 1995-01-12 Dispositif de nettoyage de solides contenus dans des eaux residuaires WO1995019212A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4401181A DE4401181A1 (de) 1994-01-13 1994-01-13 Vorrichtung zur Reinigung von in Abwassern enthaltenen Feststoffen
DEP4401181.4 1994-01-13

Publications (1)

Publication Number Publication Date
WO1995019212A1 true WO1995019212A1 (fr) 1995-07-20

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Application Number Title Priority Date Filing Date
PCT/EP1995/000112 WO1995019212A1 (fr) 1994-01-13 1995-01-12 Dispositif de nettoyage de solides contenus dans des eaux residuaires

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DE (1) DE4401181A1 (fr)
WO (1) WO1995019212A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998015335A1 (fr) * 1996-10-07 1998-04-16 Spirac Engineering Ab Dispositif de separation
WO1998015336A1 (fr) * 1996-10-07 1998-04-16 Spirac Engineering Ab Appareil de criblage
WO1998015334A1 (fr) * 1996-10-07 1998-04-16 Spirac Engineering Ab Dispositif de separation comportant un equipement pour commande de sortie
EP1025907A1 (fr) * 1999-02-05 2000-08-09 Werkstoff + Funktion Grimmel Wassertechnik GmbH Laveur pour la séparation de matières fines de gros composants au moyen d'un liquide

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19536319A1 (de) * 1995-09-29 1997-04-03 Passavant Werke Verfahren und Einrichtung zum Waschen von organisch verunreinigtem Rechengut aus Kläranlageneinläufen
DE10054222C1 (de) * 2000-11-01 2002-06-06 Strate Technologie Fuer Abwass Verfahren zum Auswaschen von Rechengut und Vorrichtung hierzu
DE10361786A1 (de) * 2003-12-31 2005-02-17 Kuhn, Jürgen Vorrichtung zum Trennen von mit organischem Material verschmutzten anorganischem Material aus einer Schmutzflüssigkeit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1953726A1 (de) * 1968-11-20 1970-06-04 Oesterr Amerikan Magnesit Mechanischer Klassierer
DE2924306A1 (de) * 1979-06-15 1980-12-18 Manfred Braeuer Verfahren und vorrichtung zur aussortierung von schwermetallen, insbesondere von gold aus sand- und kieshaltigen lagerstaetten
DE4222128A1 (de) * 1991-07-05 1993-01-14 Bischof Rudolf Gmbh Verfahren und vorrichtung zur verbesserung der aufbereitung von abwasser-feststoffen, sand, muell o. dgl.
EP0565898A1 (fr) * 1992-04-07 1993-10-20 Hans Georg Huber Dispositif pour séparer des produits solides d'un liquide avec une surface de séparation cylindrique, perméable à ces liquides et pour l'enlèvement des produits solides

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1953726A1 (de) * 1968-11-20 1970-06-04 Oesterr Amerikan Magnesit Mechanischer Klassierer
DE2924306A1 (de) * 1979-06-15 1980-12-18 Manfred Braeuer Verfahren und vorrichtung zur aussortierung von schwermetallen, insbesondere von gold aus sand- und kieshaltigen lagerstaetten
DE4222128A1 (de) * 1991-07-05 1993-01-14 Bischof Rudolf Gmbh Verfahren und vorrichtung zur verbesserung der aufbereitung von abwasser-feststoffen, sand, muell o. dgl.
EP0565898A1 (fr) * 1992-04-07 1993-10-20 Hans Georg Huber Dispositif pour séparer des produits solides d'un liquide avec une surface de séparation cylindrique, perméable à ces liquides et pour l'enlèvement des produits solides

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998015335A1 (fr) * 1996-10-07 1998-04-16 Spirac Engineering Ab Dispositif de separation
WO1998015336A1 (fr) * 1996-10-07 1998-04-16 Spirac Engineering Ab Appareil de criblage
WO1998015334A1 (fr) * 1996-10-07 1998-04-16 Spirac Engineering Ab Dispositif de separation comportant un equipement pour commande de sortie
US6096201A (en) * 1996-10-07 2000-08-01 Spirac Engineering Ab Apparatus for separation
US6187180B1 (en) 1996-10-07 2001-02-13 Spirac Engineering Ab Apparatus for screening
EP1025907A1 (fr) * 1999-02-05 2000-08-09 Werkstoff + Funktion Grimmel Wassertechnik GmbH Laveur pour la séparation de matières fines de gros composants au moyen d'un liquide

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Publication number Publication date
DE4401181A1 (de) 1995-07-20

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