EP4219033A1 - Vorrichtung zum aufbrechen und/oder zum entfernen von verunreinigungen, insbesondere von schlämmen in tanks - Google Patents

Vorrichtung zum aufbrechen und/oder zum entfernen von verunreinigungen, insbesondere von schlämmen in tanks Download PDF

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Publication number
EP4219033A1
EP4219033A1 EP23153504.8A EP23153504A EP4219033A1 EP 4219033 A1 EP4219033 A1 EP 4219033A1 EP 23153504 A EP23153504 A EP 23153504A EP 4219033 A1 EP4219033 A1 EP 4219033A1
Authority
EP
European Patent Office
Prior art keywords
screw
rotor
impurities
sludges
tanks
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.)
Pending
Application number
EP23153504.8A
Other languages
English (en)
French (fr)
Inventor
Tomás Nádaský
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.)
KOKS Robotics sro
Original Assignee
KOKS Robotics sro
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 KOKS Robotics sro filed Critical KOKS Robotics sro
Publication of EP4219033A1 publication Critical patent/EP4219033A1/de
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/188—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with the axis being horizontal and transverse to the direction of travel
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/241—Digging wheels; Digging elements of wheels; Drives for wheels digging wheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/205—Remotely operated machines, e.g. unmanned vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
    • B08B9/0933—Removing sludge or the like from tank bottoms

Definitions

  • the invention concerns the device which breaks up (disrupts) and/or and moves impurities to the sucking opening during the cleaning of the industrial devices, mainly during the removals of sludges in tanks in explosive environment.
  • the device is designed for transfer through the dimensionally limited openings in the tanks and it subsequently allows to effectively clean the surface with a sweep that is broader than the width of the device during its transport into the operation zone.
  • a remote controlled trolleys are used, which break up (disrupt) the impurities and sludges on the bottom of the tanks by jets or mechanical means. Subsequently these impurities and sludges are sucked and transported outside the cleaned space.
  • the openings in the tanks which are used for insertion of the remote controlled trolley are relatively small and approach the limit of transversal dimensions, mainly width and height of the remote controlled trolley with accessories. This limits the effective width of the cleaning and requires that the remote controlled trolley moves around the surface more, which decreases the efficiency of the process.
  • a solution is desired and not known which will allow for broaden the operational sweep (scope) of the device for breaking up, after the device passes the limiting opening in the tank.
  • scope operational sweep
  • the mowing bars and screw conveyors are used, which alter their effective scope in such a way that to the fixed central zone the lateral parts are attached after the transportation by public roads, which requires, however, manual tending which in case of tanks in explosive environment is not available.
  • the device for breaking up (disruption) and/or removal of impurities, mainly sludges in tanks which includes framework, hydraulic engine with the rotational output, screw (helix), where the screw has vane segments radially placed along the circumference of the rotor, where the output of the hydraulic engine is connected with the screw and the screw is rotationally placed on both its ends in the framework in the basically horizontal plane, and where the hydraulic engine is connected with the framework in the axis of the screw, whereby the framework is designed for (adjusted for) the attachment to the self-moving trolley according to this invention, which essence lies in the fact, that the screw is consists of at least two parts which are rotationally coupled, the rotors of the first and second part of the screw are mutually slidably place in the axis of the screw, the first part of the screw has a rotor with the cavity and both parts of the screw are designed for partially insertion of the second rotor into the first rot
  • the vane segments of the first part of the screw are in the longitudinal axial place of the screw distanced from the vane segments of the second part of the screw at least at distance corresponding to the length of the insertion of the second rotor to the first rotor. That means that in the individual planes parallel with the axis of the screw the mutual position of the vane segments allows for their approximation and thereby allows to insert the second rotor into the first rotor without the interference of the vane segments.
  • the sufficient distance of the vane segments of the first part of the screw and the oppositely placed vane segments of the second part of the screw in the longitudinal axial plane of the screw ensures that the vane segments do not collied during the insertion to the rotor.
  • the vane segments are arranged, as if, for stacking during the telescopic insertion of the rotors into the screw.
  • the longitudinal axial plane of the screw is any plane in which the axis of the screw lies.
  • the condition of the mutual distance of the points of the opposite vane segments holds for all longitudinal axial planes.
  • the geometry of the vane segments will thus be such that in all longitudinal axial planes the intersection of the surface of the vane segments with the longitudinal axial plane will be sufficiently distanced from the intersection of the surface of the opposite vane segment on the second part of the screw.
  • An important feature of the proposed invention is the collapsible (folding) or extendable, respectively, arrangement of the rotor of the screw which has at least two parts which are designed for telescopic ejection and insertion of one into the other.
  • the insertion of the first rotor to the second rotor and vice versa is partial, whereby the vane segments are distributed and connected to the rotors in such a way that there is not mutual collision of the vane segments during the ejection and insertion of the rotors.
  • screw (or helix, or auger) must be interpreted as any rotationally placed element which has vane segments distributed on the rotor, whereby these need not to be arranged into a consistent line of the screw groove, that is, into the line of the geometrically regular screw.
  • the term “screw” in this text is therefore to be understood broadly; it includes an element whose vane segments are only simply askew placed elements such as plates, too, where the rotation of the rotor moves the material captured by the plates.
  • the rotor can have varying cross-section, preferably circular or polygonal cross-section, which can ensure the rotational coupling of the rotors by its shape. The rotational coupling of all rotors of the screw is important so that the output from the hydraulic engine is transferred to the whole screw, preferably without slip, so that the angular position of the vane segments is always ensured.
  • the vane segments break the adhesion forces in the matter which have been maintained continuously during the storage of various petrochemical products.
  • the broken matter is more easily sucked and moved outside the cleaned tank.
  • the breaking is ensured by repeated submersion and rotation of the vane segments into the material with impurities.
  • the framework allows for lifting, and the height (level) of the screw can be positioned, too. Thanks to the askew orientation, the vane segments also move the material in the direction of the screw's axis.
  • impurities expressly includes mud, variously viscous sediments, mud dregs and sludges, too.
  • the first rotor has a cavity with internal diameter which - with the necessary gap - corresponds to the respective diameter of the second rotor or to the diameter of the part of the second rotor which is inserted into the cavity of the first rotor, respectively.
  • This diametric relationship holds at least for parts which are mutually inserted into each other so that the telescopic structure is created.
  • the cavity is equipped by the inner grooves and, on the other hand, the insertion part of the second rotor is produced by the grooved shaft, which produces rotational connection (coupling) of the first and second rotor.
  • first and “second” in this text refer to the part of the screw and the respective rotor, without the distinguishing being related to their order or importance; they are interchangeable in this text.
  • the terms “first” and “second” are therefore used solely for differentiation.
  • the hydraulic engine is power supplied from the hydraulic aggregate which drives the self-moving trolley, too.
  • a free branch of the pressure pipeline can be used for propulsion of the hydraulic engine, whereby this branch would with use of classic arm with the suction nozzle been used for the lateral movement of the arm, that is, only movement in the horizontal plane.
  • the hydraulic engine can be connected to the hydraulic aggregate by means of relatively thin hoses, for example DN10, whereby the hydraulic aggregate can be relatively far from the place of cleaning; the possible hose connection can be more than 100 m long.
  • the technical solution with the grooved shaft and the inner grooving of the cavity of the first rotor can be supplied also by the sheathing which is fixedly connected with the second rotor, whereby the sheathing adjoins to the outer circumference of the first rotor.
  • the usage of sealing between the sheathing and the outer surface of the first rotor achieves the sealing of the whole group, and the impurities from the outside do not enter into the contact with the components inside.
  • the vane segments of the first part of the screw and the second part of the screw are in the mutually opposite position with the same angle from the longitudinal axial plane of the screw.
  • the vane segments are distributed in such a way that there is no collision during the insertion, which would limit the scope of insertion.
  • the avoidance of collision is important also to decrease the risk of sparks.
  • the vane segment in the direction of the screw's axis protrudes the front of the respective rotor, whereby the vane segment has a gap produced by the rotor which allows for sliding on of the sheath of the hollow rotor during the withdrawing of the screw, where the end of the vane segment is already in the zone of the hollow rotor.
  • a preferable arrangement is also a subject matter of the invention, where the vane segments are connected to the single rotor not directly on the cylindrical circumference, but by means of drive disc (carrying disc).
  • the drive disc is fixedly connected with the rotor and the vane segments are connected to the front of the drive disc, whereby they are oriented in such a way that they as if run out of the circumference of the rotor, but between the outer sheath of the rotor and the vane segments there is a gap onto which the sheath of the neighboring rotor can be slid.
  • the drive disc allows to carry the vane segments basically from the side, thanks to which the vane segments do not enter into the contact with the circumference of the rotor in the "sliding-on" surface.
  • the vane segments of the individual rotors are in the withdrawn position as if stacked side by side, that is, they are arranged with similar shape and under the same angle. After the expansion the vane segments are present alongside the whole length of the screw. In order to ensure the continuous movement of the material in the direction of the screw's axis, the vane segments in the expanded state should reach the outer circumference alongside the whole length of the expanded screw. If there were gaps between the edges of the sweeping neighboring vane segments in the expanded position, a cumulation of the material would take place and in this zone the material would have been moved only indirectly, that is, by the pressure of the material entering the zone where the edges of the vane segments directly reach. It is thus necessary to maintain regular distribution of the vane segments in the expanded operational position.
  • the screw 1 in this example is produced from the first rotor 21 and from the second rotor 22 , whereby inside the second rotor 22 there is a hydraulic engine 5 (not depicted on the figure 1 ).
  • the device uses only one hydraulic engine 5 and only one pair of telescopically expanding rotors 21 , 22 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Screw Conveyors (AREA)
  • Cleaning In General (AREA)
EP23153504.8A 2022-01-27 2023-01-26 Vorrichtung zum aufbrechen und/oder zum entfernen von verunreinigungen, insbesondere von schlämmen in tanks Pending EP4219033A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SK50003-2022A SK500032022A3 (sk) 2022-01-27 2022-01-27 Zariadenie na rozrušovanie a/alebo presun nečistôt, najmä kalov v nádržiach

Publications (1)

Publication Number Publication Date
EP4219033A1 true EP4219033A1 (de) 2023-08-02

Family

ID=85704784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23153504.8A Pending EP4219033A1 (de) 2022-01-27 2023-01-26 Vorrichtung zum aufbrechen und/oder zum entfernen von verunreinigungen, insbesondere von schlämmen in tanks

Country Status (2)

Country Link
EP (1) EP4219033A1 (de)
SK (1) SK500032022A3 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1275492A (en) 1969-06-02 1972-05-24 Clayson Nv Improvements in or relating to harvesting machines
DE19706150A1 (de) * 1997-02-18 1998-08-20 Reinhard Dipl Ing Schiweck Vorrichtung zum Reinigen des Innenraums eines Tankcontainers
JP2002325510A (ja) 2001-05-01 2002-11-12 Iseki & Co Ltd 穀物排出装置
WO2010048695A1 (en) 2008-10-31 2010-05-06 Rodono Industries Ltd. Retractable transfer conveyor
WO2014104897A1 (en) * 2012-12-24 2014-07-03 Sludge Pumping (Nz) Limited Sludge removal pump
WO2017201232A1 (en) * 2016-05-18 2017-11-23 Worleyparsons Services Pty Ltd Device for removing catalyst and other material form refinery and petrochemical reactors and other vessels

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1275492A (en) 1969-06-02 1972-05-24 Clayson Nv Improvements in or relating to harvesting machines
DE19706150A1 (de) * 1997-02-18 1998-08-20 Reinhard Dipl Ing Schiweck Vorrichtung zum Reinigen des Innenraums eines Tankcontainers
JP2002325510A (ja) 2001-05-01 2002-11-12 Iseki & Co Ltd 穀物排出装置
WO2010048695A1 (en) 2008-10-31 2010-05-06 Rodono Industries Ltd. Retractable transfer conveyor
WO2014104897A1 (en) * 2012-12-24 2014-07-03 Sludge Pumping (Nz) Limited Sludge removal pump
WO2017201232A1 (en) * 2016-05-18 2017-11-23 Worleyparsons Services Pty Ltd Device for removing catalyst and other material form refinery and petrochemical reactors and other vessels

Also Published As

Publication number Publication date
SK500032022A3 (sk) 2023-08-23

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