EP0294607B1 - Zweikammer-Entsorgungsbehälter - Google Patents

Zweikammer-Entsorgungsbehälter Download PDF

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Publication number
EP0294607B1
EP0294607B1 EP88107544A EP88107544A EP0294607B1 EP 0294607 B1 EP0294607 B1 EP 0294607B1 EP 88107544 A EP88107544 A EP 88107544A EP 88107544 A EP88107544 A EP 88107544A EP 0294607 B1 EP0294607 B1 EP 0294607B1
Authority
EP
European Patent Office
Prior art keywords
chamber
container
pressure
waste disposal
valve
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.)
Expired - Lifetime
Application number
EP88107544A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0294607A1 (de
Inventor
Udo Th. Thüner
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.)
Utef - Mabo Utef Umwelt-Technik Entsorgungs-Fahrzeuge Ges fur Entw Konstruktionen und Patentverwertung Mbh & Co Mabo KG
Original Assignee
Utef - Mabo Utef Umwelt-Technik Entsorgungs-Fahrzeuge Ges fur Entw Konstruktionen und Patentverwertung Mbh & Co Mabo 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 Utef - Mabo Utef Umwelt-Technik Entsorgungs-Fahrzeuge Ges fur Entw Konstruktionen und Patentverwertung Mbh & Co Mabo KG filed Critical Utef - Mabo Utef Umwelt-Technik Entsorgungs-Fahrzeuge Ges fur Entw Konstruktionen und Patentverwertung Mbh & Co Mabo KG
Priority to AT88107544T priority Critical patent/ATE70581T1/de
Publication of EP0294607A1 publication Critical patent/EP0294607A1/de
Application granted granted Critical
Publication of EP0294607B1 publication Critical patent/EP0294607B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools
    • E03F7/103—Wheeled apparatus for emptying sewers or cesspools with a tank featuring one or more partition walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/58—Large containers characterised by means facilitating filling or emptying by displacement of walls
    • B65D88/60—Large containers characterised by means facilitating filling or emptying by displacement of walls of internal walls
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools

Definitions

  • the invention relates to a two-chamber disposal container, in particular for disposal vehicles with an axially displaceable discharge piston, which separates the first chamber, which is designed as a suction chamber and is provided with an openable cover, from the second chamber, which is designed as a pressure chamber, and the discharge piston is formed by one of the walls the container with clearance-fitting tubular sleeve, the lumen of which is shut off with a plate and provided with at least two sealing profiles designed as guide profiles on the end of the ejection piston associated with the pressure chamber and at the ends of the ejection chamber associated with the suction chamber, wherein a further sealing profile ring with a seal that can be inflated by means of a pressure fluid is arranged next to preferably the sealing ring assigned to the suction chamber, and wherein the inside of the wall of the container is provided with means for stopping the moving discharge piston in the form of inwardly directed stops or with at least one pressure relief opening.
  • a disposal container filled with absorbed material For emptying a disposal container filled with absorbed material, it is often tipped with a tilting device for emptying, it is assumed that the medium taken up is free-flowing or flowable.
  • ejection pistons are also used, which divide the disposal container into two chambers, namely into a front pressure chamber and a rear suction chamber, the latter pointing towards the discharge opening.
  • This suction chamber serves as a collecting container for the media to be accommodated
  • the front chamber is used as a pressure chamber for moving the ejection piston
  • an overpressure means a movement towards the rear end of the container and thus an ejection of the medium
  • a vacuum means a retraction of the ejection piston into its normal position.
  • Both chambers are connected by separate suction and compressed air lines to a vacuum or compressed air pump, which are switched via corresponding changeover valves so that the suction chamber is under vacuum during suction operation and no overpressure is built up in the pressure chamber that the pressure chamber is pressurized when ejected and that finally after the ejection of the piston is withdrawn by negative pressure in the pressure chamber.
  • a separate shut-off valve is provided in each of the lines; these shut-off valves make it possible to control the pressure in each of the two chambers.
  • the discharge piston In the practice of actuating and moving the discharge piston, the discharge piston receives an excessive movement (sliding) impulse due to the overloading of its pressure surfaces due to the excess pressure in the pressure chamber, and overruns or tears off the intended end stops at the discharge opening of the disposal container , thus "shoots" through the opening of the container into the open and represents a considerable risk to people and material in the area. Such incidents are also caused by operating errors and - as has been shown in practice - the previously known safety measures are not sufficient to bring the sliding movement of the ejection piston under control.
  • DE-AS 23 03 125 describes a sludge suction vehicle with a two-chamber disposal container for receiving the sucked-in sludge, which is equipped with an ejection piston.
  • the ejection piston consists of a tube sleeve which fits the inside of the wall of the container, the lumen of which is closed with a plate, and which is provided with two sealing profiles, which are arranged between the outside of the tube piece and the inside of the wall of the container and are designed as guide profiles which are each located at the end of the discharge piston assigned to the pressure chamber and the end assigned to the suction chamber.
  • the ejection piston is set in motion by the excess pressure of a pressure medium generated in the pressure chamber of the container to squeeze out the absorbed sludge and is stopped when it reaches its permissible end position. This stopping is carried out by releasing the excess pressure acting as the driving force or by means that act in a form-fitting manner and limit the path length, such as a tie rod or inward stops on the inside of the wall of the container.
  • DE-PS 923 716 relates to a device for emptying two-chamber disposal containers for sludge-like masses by means of an axially movable ejection piston with a partition, the ejection piston having a circumferential ring seal which in turn inflates by means of an air, gas or liquid filling and thus against one coarse rolled container wall can be reliably sealed.
  • one or more projections projecting into the interior of the container can be provided as stops for the ejection piston;
  • DE-PS 27 46 199 teaches for a two-chamber disposal container with an axially displaceable discharge piston separating the first chamber, which is designed as a suction chamber and is provided with an openable cover, from the second chamber, which is designed as a pressure chamber to reliably fix this by means of a seal inflatable with a pressure fluid and a spreading ring which interacts with this seal and which is pressed non-positively against the inner wall of the container.
  • a seal inflatable with a pressure fluid and a spreading ring which interacts with this seal and which is pressed non-positively against the inner wall of the container.
  • a secure fixation by a frictional connection cannot be achieved, since the indefinable friction conditions do not permit such a defined frictional engagement.
  • the principle of sealing is also known from the CH-PS 446 211 relating to a pivotable flap with an annular seal.
  • the known piston stops are used, whereby the kinetic energy of the discharge piston, which these piston stops cannot withstand, is at least partially converted into deformation work by the compressible attachment as a "crumple zone" and is thus substantially reduced. It is thereby achieved that the kinetic energy of the massive ejection piston converted when stopping is not only overloaded and even overloaded, but that they only have to absorb a residual kinetic energy. Only this residual energy - insofar as it is not absorbed by the stops - is transferred to the container wall; Peak loads occurring when the ejection piston stops can therefore have only an insignificant effect on the wall of the container. It is advantageous to provide the compressible attachment with predetermined breaking points so that tongues occur which, as a result of the pre-deformation, interact with the container wall as brake tongues in an outward direction.
  • outflow flaps can also be provided which can be opened when the trigger is activated. Such discharge flaps can also be formed by tearing open the plate that closes the lumen of the guide ring of the ejection piston or by means of rupture disks, whereby the release can take place mechanically (via chain or other tension links) or electromechanically (via electrically ignited explosive charges or the like).
  • the rupture disks are designed so that they just do not respond to a load at the pressure in the pressure chamber, which is required for a slow sliding movement of the ejection piston, but tear open when this pressure is exceeded. It is also advantageous to vent the pressure chamber an outflow channel which is released by the discharge piston when the discharge piston has reached its maximum position. When moving into this maximum position, the cross section of the outflow channel can also be successively released in that the cross section becomes larger the further the piston is extended.
  • a triangular-shaped channel is advantageous because it is easy to manufacture.
  • a pressure measuring device with limit contact transmitter is arranged in the line supplying the compressed air to the pressure chamber of the two-chamber disposal container, automatic monitoring is of course also possible.
  • the limit contacts are used for both pressure and vacuum, each for the required or desired minimum and maximum value. By monitoring the pressure in the pressure chamber of the disposal container, the displacement of the discharge piston can be regulated and monitored.
  • valves can be closed or opened via the limit contacts when the maximum is reached, so that the compressed air line to the pressure chamber of the disposal container is interrupted by the closed valve and vented again by the opened valve. When the ejection piston is "sucked back", the resulting vacuum can be broken by the same valve if the maximum contact vacuum responds.
  • emergency stops or signal generators for optical and acoustic signals can also be triggered via the maximum limit contacts.
  • Another advantageous application for the limit contacts of the pressure measuring device is to open the valve in the line through which a pressurized fluid, usually compressed air, is fed to the inflatable seal of the ejection piston, so that the seal is inflated and the ejection piston is inflated by the inflated one Seal is braked to a standstill.
  • a pressurized fluid usually compressed air
  • safety lock stops are provided at the end of the container, which, when the ejection piston opens, cause further deformations or canting of the ejection piston in addition to the deformations already caused by the limit stops and thus cause the ejection piston to slide on prevent.
  • the arrangement of these safety locking stops at a gap to the limit stops has the consequence that the deformations caused by the limit stops have weakened the stiffness of the compressible attachment and thus enable a more effective action on the crumple zone of the compressible attachment.
  • the drive takes place either via a separate drive source or from the drive of the main vacuum / pressure unit, with a countershaft for speed adjustment and clutches expediently being provided with which either both units can be operated simultaneously or each individually.
  • a silent circulation promotion can be carried out via a bypass from the suction port to the pressure port, or a valve lift ensures that the delivered and unnecessary compressed air is blown off.
  • the described automatic functions eliminate operating errors when operating the two-chamber disposal container, in particular when ejecting with the ejection piston, and ensure the safety of people and materials in the area. All security systems can be used next to each other, especially all security systems with the additional compressed air pump.
  • the main vacuum pressure unit 5 is arranged, the suction connection of which is connected to the suction chamber 3.1 (FIG. 2) via a line (not shown).
  • the pressure port is fed to a four-way valve 8 via a line 5.1.
  • An outlet of the four-way valve establishes the connection 5.2 to the pressure chamber 3.1 (FIG. 2) of the disposal container.
  • the pressure measuring device 9 is arranged with - not shown - limit contacts.
  • FIG. 2 shows a section through the location of the container 3 at which the ejection piston 10 is located, which separates the suction chamber 3.1 from the pressure chamber 3.2.
  • the suction piston 10 is guided by the guide ring 11, the lumen of which is closed by an inclined plate 12.
  • the all-round sealing profile rings 13 which - set relatively hard - essentially serve to guide the ejection piston.
  • two sealing profile rings 13 are provided, between which an inflatable seal 14 is arranged.
  • the lumen of the inflatable seal 14 can be connected via a line 16 to a supply for a pressure fluid.
  • the front end of the ejection piston is provided with a compressible attachment 11.1, which is deformable when driven against the ejection piston stops 21 (FIG.
  • the disc 12 is provided with parallel or annular grooves 15, which represent tearable predetermined breaking points, it is further connected via a chain 17, attached to the eye 16, to a fixed part of the container (not shown in detail). If the chain is stretched when it is stretched by the chain length, the predetermined breaking points tear open, the torn points of the plate 12 form outflow openings through which the pressure can escape from the pressure chamber 3.2 of the container 3.
  • the chain 17 acts as a trigger for the valve 23 inserted into the line 16, which in the end position - with the chain 17 tightened (as shown) flips the shift lever 23.1 of the valve 23 and thus the line 16 with the connects a compressed air source leading spiral line 16.1.
  • a pressurized fluid is fed into the annular chamber of the inflatable seal 14 and expanded, which - depending on the pressure applied - acts as a brake or stop member.
  • this chain 17 can also be connected to a trigger which switches off the compressed air supply to the pressure chamber 3.2, opens a vent valve for the pressure chamber 3.2, releases rupture disks or the like.
  • the container wall 3 shows a section of the container end with the piston stop 21 and with an outflow channel 19.1, which opens into an outflow pipe 18, which is closed with a pendulum-mounted flap 20 which is tightly fitting in suction mode.
  • the container wall 3 is raised in a wedge shape in the region of the container apex approximately twice the width of the seals 13, 14, 13 and approximately over such a length and opens into an outflow line 18, which is then closed with the pendulum flap 20.
  • the ejection piston stops 21 are located approximately half the distance from the end flange 9.1 and are - FIG. 4 - placed at a distance of 90 ° from U-iron pieces which are adapted to the curvature of the container wall 3.
  • safety stop stops 22 are provided in the area of the upper part of the container, which are set against the limit stops 21.
  • the sliding surfaces of the safety stop stops can also be designed as an inclined plane.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Refuse Collection And Transfer (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Refuse Receptacles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Sealing Devices (AREA)
EP88107544A 1987-05-17 1988-05-11 Zweikammer-Entsorgungsbehälter Expired - Lifetime EP0294607B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107544T ATE70581T1 (de) 1987-05-17 1988-05-11 Zweikammer-entsorgungsbehaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8707096U 1987-05-17
DE8707096U DE8707096U1 (de) 1987-05-17 1987-05-17 Zweikammer-Entsorgungsbehälter

Publications (2)

Publication Number Publication Date
EP0294607A1 EP0294607A1 (de) 1988-12-14
EP0294607B1 true EP0294607B1 (de) 1991-12-18

Family

ID=6808168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107544A Expired - Lifetime EP0294607B1 (de) 1987-05-17 1988-05-11 Zweikammer-Entsorgungsbehälter

Country Status (3)

Country Link
EP (1) EP0294607B1 (xx)
AT (1) ATE70581T1 (xx)
DE (2) DE8707096U1 (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4112146C2 (de) * 1991-04-13 1994-05-26 Kroll Fahrzeugbau Gmbh Verwendung von Transportbehältern zur Entsorgung von hochviskosen oder pastösen Gefahrgutstoffen und Transportbehälter hierfür
DE4131677A1 (de) * 1991-09-24 1993-04-01 Kroll Fahrzeugbau Gmbh Tank fuer saug-druck-betrieb mit einer sicherungseinrichtung fuer einen im tank verschiebbaren kolben
DE4138169C2 (de) * 1991-11-21 1994-08-18 Kroll Fahrzeugbau Gmbh Tank mit einer Sicherungseinrichtung für einen im Tank verschiebbaren Kolben
DE4226334A1 (de) * 1992-08-08 1994-02-17 Utef Umwelt Tech Entsorgung Zweikammer-Entsorgungsbehälter mit Ausstoßkolben
DE4226333A1 (de) * 1992-08-08 1994-02-10 Utef Umwelt Tech Entsorgung Zweikammer-Entsorgungsbehälter mit Ausstoßkolben
DE102008049375B3 (de) 2008-09-27 2010-04-15 Kroll Fahrzeugbau-Umwelttechnik Gmbh Vorrichtung und Verfahren zum Aufnehmen, Transportieren und Entladen von fliessfähigen Medien
US10101751B2 (en) * 2015-06-26 2018-10-16 Ray Sonnenburg System and method of air pollution control for liquid vacuum trucks
DE102018111096A1 (de) * 2018-05-09 2019-11-14 FFG Umwelttechnik GmbH & Co. KG Saug-/Spülfahrzeug
CN109335291A (zh) * 2018-09-28 2019-02-15 江门市新会区十月果柑制品有限公司 一种生活用陈皮罐

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE923716C (de) * 1953-10-20 1955-02-21 Herm I Hellmers G M B H Fahrze Vorrichtung zum Entleeren von Aufnahme- oder Transportbehaeltern fuer schlammartige Massen mittels einer im Aufnahmebehaelter axial beweglichen Trennwand
AT257481B (de) * 1966-02-02 1967-10-10 Josef Kaiser Fahrzeugwerk Behältnis zur Aufnahme von unter Druck stehenden Flüssigkeiten und/oder Gasen
DE2303125C3 (de) * 1973-01-23 1975-07-03 Keller & Knappich Augsburg, Zweigniederlassung Der Industrie-Werke Karlsruhe Augsburg Ag, 8900 Augsburg Schlammsaugewagen
US3828988A (en) * 1973-04-04 1974-08-13 Bervy Inc Tank for bulk transport and storage of semisolid materials
SE401650B (sv) * 1976-09-02 1978-05-22 Rickardsson Ab Brdr Transport- eller forvaringsbehallare for flyt- eller fluidiserbart gods
DE2746199C2 (de) * 1977-10-14 1986-09-04 Fa. Friedrich Küller, 5600 Wuppertal Behälter zur Aufnahme von Schlamm o.dgl.

Also Published As

Publication number Publication date
EP0294607A1 (de) 1988-12-14
DE8707096U1 (de) 1988-06-23
ATE70581T1 (de) 1992-01-15
DE3866957D1 (de) 1992-01-30

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