EP0446790A1 - Dispositif de chargement pour le chargement en vrac de matières poussiéreuses - Google Patents

Dispositif de chargement pour le chargement en vrac de matières poussiéreuses Download PDF

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Publication number
EP0446790A1
EP0446790A1 EP91103512A EP91103512A EP0446790A1 EP 0446790 A1 EP0446790 A1 EP 0446790A1 EP 91103512 A EP91103512 A EP 91103512A EP 91103512 A EP91103512 A EP 91103512A EP 0446790 A1 EP0446790 A1 EP 0446790A1
Authority
EP
European Patent Office
Prior art keywords
loading
cone
thrust piston
closure
attachment body
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.)
Granted
Application number
EP91103512A
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German (de)
English (en)
Other versions
EP0446790B1 (fr
Inventor
Udo Leibling
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.)
Agrichema Materialflusstechnik GmbH
Original Assignee
Agrichema Materialflusstechnik GmbH
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 Agrichema Materialflusstechnik GmbH filed Critical Agrichema Materialflusstechnik GmbH
Publication of EP0446790A1 publication Critical patent/EP0446790A1/fr
Application granted granted Critical
Publication of EP0446790B1 publication Critical patent/EP0446790B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/62—Gates or closures having closure members movable out of the plane of the opening
    • B65D90/626—Gates or closures having closure members movable out of the plane of the opening having a linear motion

Definitions

  • the invention relates to a loading device according to the preamble of patent claim 1.
  • Conventional loading devices for the loose loading of dusty, powdery and granular bulk goods have a lowerable and lifting loading nozzle, which is formed either in the form of superimposed outer hose modules with bulk material guide cones for channeling the bulk material flow or telescoping tubes that can be moved into one another.
  • closed loading ie the loading of bulk goods into a container opening, for example a tank truck
  • the loading nozzle is lowered onto the silo train that is driven under the loading nozzle until an attachment cone arranged at the free end of the loading nozzle is placed on the filling opening of the silo train.
  • the loading nozzle is marked with a Seal cone with or without level indicator.
  • these locking cones work mechanically, ie they hang in the pull cables of the motor drive.
  • the closure cone When the loading nozzle moves down, the closure cone is initially in its closed position, in which the closure cone closes the outlet opening of the attachment cone. Only after the attachment cone has been placed on the filler opening of the tank truck underneath does the closure body move downwards through its own weight to a predetermined end stop.
  • an annular gap results between the closure cone and the attachment cone, through which loading can take place.
  • the bulk material then runs into the interior of the silo vehicle via the closure cone. The cone remains open while the bulk goods enter the tanker.
  • the drive motor first pulls the closure cone upward relative to the attachment cone via the drive rope pulleys, as a result of which the outlet opening is closed. As soon as the locking cone reaches its locking position on the attachment cone, the locking cone takes the attachment cone upwards, so that the loading nozzle is now lifted upwards.
  • This method of operation is the same for all loading devices of this type known to date, it being possible for the closure cone to be suspended in the middle of a rope or via a three-rope suspension.
  • a major disadvantage is that when the closure cone is raised into its closed position, bulk material is pressed between the closure cone and the top cone as a result of a material column standing above the cone, which means that the closure cone does not move into its full closed position on the top cone can be. On the one hand, this can overload the drive motor, the ropes and thus the whole Lead construction. In particular, however, this causes environmental pollution in that the loading nozzle can practically still be filled with residual material or the closure cone has not closed absolutely tightly, and thus the material can flow out unhindered after the loading nozzle has been lifted off the tanker truck. This is particularly problematic in the case of dangerous bulk goods, such as toxic bulk goods or aggressive bulk goods. In addition, with a mechanical locking cone, it cannot be guaranteed that the locking cone is always 100% open, since a position indicator can be arranged very poorly or not at all within the dust chamber.
  • the object of the invention is to ensure a reliable opening and closing of a closure cone on a loading trunk. This should be achieved through structurally simple and robust measures. Furthermore, even with combined loading, the loading trunk should be pulled up in adaptation to the increasing fill level while maintaining the open position of the closure cone without additional constructional effort.
  • the closure cone is driven by a motor, that is to say it is decoupled from the lifting and lowering movement of the loading nozzle by means of cable pulls, the closure cone being able to be reliably moved into a defined opening position as a result of the motor drive.
  • the loading nozzle can be raised step by step with the increasing fill level when the closure cone is open. If there is resistance when the locking cone is moved into its locking position due to a material column above it, the drive, which is preferably formed as a thrust piston gear, can be switched off in a simple manner by means of a force-dependent switch, and at the same time an optical or acoustic signal can be triggered. This forces the loading master to ensure that all material from the loading nozzle is shaken off into the silo train or otherwise removed. Only then can the locking cone be closed completely, after which the loading trunk can only be lifted upwards.
  • the protective cover is formed by a protective tube made of appropriately steel, in particular stainless steel, a telescopic inner tube compensating for the stroke movement of the thrust piston transmission results.
  • a protective tube made of appropriately steel, in particular stainless steel
  • a telescopic inner tube compensating for the stroke movement of the thrust piston transmission results.
  • Such a structure has the advantage of extremely high wear resistance. Since the telescopic structure can be sealed in a very simple manner, for example by means of a scraper between the protective tube and the telescopic inner tube, a motorized drive can thereby be implemented even in the case of extremely aggressive media to be loaded.
  • the protective cover is expediently suspended via radial transverse arms, by means of which the protective cover or the protective tube can be anchored to the outer tube or to the attachment body.
  • a star-shaped, three-arm suspension offset by 120 degrees is advisable.
  • the interposition of oscillating buffers results in a damping of the thrust piston gear against shaking movements, which are applied to the loading nozzle by means of a vibrator at the end of the loading process.
  • the inner tube is expediently arranged leaving a narrow annular gap around the outer jacket of the cylinder of the thrust piston transmission, as a result of which a ventilation gap is limited.
  • piston it is also more expedient for the piston to be suspended on the protective tube by means of a sprung joint head, and it is also expedient for the thrust piston mechanism to be articulated at the opposite end with the locking cone.
  • Suitable limit switches are used to open the feed elements when the thrust piston transmission is fully extended so that loading can take place.
  • the thrust piston transmission can be switched off in the event of resistance as a result of a material column built up above the sealing cone and a signal indicating the fault can be given. This prevents the loading nozzle from being lifted off when the locking cone is open and any aggressive material can get into the environment. Only when the locking cone reaches the full locking position, which is signaled by a limit switch, is the cable drive actuated and thus the loading trunk raised.
  • FIG. 1 A preferred embodiment of the invention is described below with reference to the drawing, which in the single figure shows a sectional view through a device for the loose loading of dusty bulk goods, in the left half of the figure the device in the closed position and in the right half the device in the bulk material conveying position.
  • the figure only shows the lower end of a loading trunk designated 1, which can be lowered into the loading position by means of a cable guide 2 and raised again after the loading process has ended.
  • the loading nozzle is constructed telescopically, for example by means of outer hose modules 3 arranged one above the other with bulk material guide cones 4 for channeling the bulk material flow.
  • the loading trunk can also be equipped with telescopic tubes that can be pushed into one another in the design according to DE-OS 37 08 653.
  • the loading trunk 1 has at its lower end an attachment body in the manner of an attachment cone 5, the outlet opening 6 of which can be closed by a closure body in the manner of a closure cone 7, as shown in the figure on the left.
  • the closure cone 7 is moved downwards relative to the attachment cone 5, so that an annular conveying gap is formed between the closure cone 7 which is moved down and the lower end of the attachment cone 5.
  • the closure cone 7 is actuated via a motor drive of a thrust piston transmission 8, which is arranged within the loading nozzle 1 and in the closure cone 7 and fastened, in particular articulated, to the bottom of the closure cone at 10 with the lower end of the cylinder 9.
  • the thrust piston gear is suspended via the upper end of the piston 11 from a protective cover, generally designated 12, with a sprung joint head 13.
  • the protective cover 12 comprises a protective tube, designated 14, advantageously made of steel, in particular stainless steel, which radially extending cross arms 15 is attached to the attachment body 5.
  • oscillating buffers can be arranged and screwed together between the tabs and the attachment arms, which protect the thrust piston drive against vibrations when shaking at the end of the loading by a vibrator.
  • the cables of the cable guide 2 are anchored at 18 in the illustrated embodiment in the area of the attachment. Via the cross arms 15 in connection with the tabs 17, a star-shaped, three-arm suspension which is offset by 120 degrees is expediently accomplished.
  • the protective tube 14 is closed at its upper end by a cone-shaped hood 19 which repels bulk goods and is preferably made of plastic with high impact strength and high chemical resistance.
  • the piston rod is anchored at 20 on a plate welded by the protective tube 14 or an inner ring within the protective tube.
  • the protective tube 14 has a telescopic inner tube 21 which is connected at its lower end to the hollow locking cone, in particular welded. Both in the retracted position of the thrust piston gear 8 and in the extended position, the pistons and cylinders of the thrust piston gear 8 are protected from the outside by the protective cover made of the protective tube 14 and the telescopic inner tube 21, and in the lower region by the closed locking cone 7.
  • a continuous annular gap 23 is provided between the inner tube 21 and the outer jacket 22 of the cylinder 9 of the thrust piston transmission 8 and forms a venting device.
  • the inner tube 21 is guided on the protective tube 14 by two guide rings 24 which are arranged at a distance from one another at the lower end of the protective tube 14 and which are advantageously preceded by a wiper 25. Due to the two guide rings with the stripper in front, the inner tube is optimally guided and cleaned at the same time. This results in optimal dust protection and, with correspondingly careful execution of the seals, also a waterproof shielding of the thrust piston transmission 8.
  • the loading device is suitable for both closed and combined loading, whereby combined loading means that the bulk goods are not fed through a container opening on which the attachment cone can rest, but rather are loaded directly from the loading nozzle onto a platform vehicle, whereby here the loading nozzle is moved up to a specified height above the vehicle floor or bulk material cone.
  • the attachment cone has an additional attached apron for open trucks, in particular platform trucks.
  • the loading nozzle is lowered onto a silo container moved under the loading nozzle until the attachment cone 5 is seated on the filling opening of the silo container.
  • suitable detectors such as a slack rope switch, so that after the attachment cone 5 has been put on, the closure cone is moved downwards by the thrust piston mechanism 8.
  • a limit switch not shown in the drawing, responds and gives contact for the bulk material feed conveying.
  • the locking cone closes in motor mode during normal operation.
  • a limit switch is actuated which actuates or switches the motor for pulling up the loading nozzle by means of the cable guide 2. If, however, resistance occurs when the motor-driven closing cone 7 is closed before the closing cone reaches its closed position, for example due to bulk material present in the loading nozzle, the thrust piston drive is stopped via a force-dependent limit switch and an optical or acoustic interference signal is triggered. The loading master is then forced to first ensure that all material from the loading trunk is shaken off into the silo train or otherwise discharged. Only then can the locking cone close until the corresponding limit switch is reached when the closed position is reached of the plug 7 switches the motor for lifting the loading nozzle by means of a cable guide 2.
  • the loading nozzle moves down to a specified height above the vehicle floor or bulk material cone, the stopping point of the lowering movement being determined by means of a capacitive filling indicator. Then the motorized locking cone is extended by means of the thrust piston mechanism 8, the limit switch releasing the locking contact for the bulk material feed in the end position.
  • the lifting motor of the loading nozzle gradually pulls it up by means of the cable guide, the cone 7 remaining in the open position. Only when the loading process has ended and the supply of the organs has been stopped is the motorized locking cone, as described above, closed.
  • a force-dependent limit switch in turn ensures that in the event of a malfunction as a result of the bulk material within the loading trunk, only a fault signal is given, but the loading trunk does not start up.
  • the loading nozzle can only be raised when the locking cone 7 has moved into its complete locking position on the top cone 5, which only triggers the lifting motor to raise the loading nozzle by the limit switch. This always ensures that the loading nozzle can only be lifted up when it is completely closed by the locking cone. If material is still pressed between the sealing cone and the discharge head, the material build-up must first be removed, but in this state the loading nozzle is prevented from lifting.
  • the electrical connecting cables for the thrust piston mechanism are guided via a flexible hose connection 26 to the sealing cone 7, with corresponding passage openings 27 for the outer tube 5 and the sealing cone 7 Hose connection 26 are provided.
  • the hose connection is expediently guided in a loop between the outer tube and the closure cone in order to be able to compensate for the lifting movement of the extending closure cone 7.
  • the function of the ventilation gap 23 is to connect the interior of the protective tube 14 to the comparatively large-volume cavity of the sealing cone 7, so that air or vacuum which is displaced during a stroke movement of preferably 200 mm is generated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Ship Loading And Unloading (AREA)
  • Crushing And Grinding (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
EP91103512A 1990-03-16 1991-03-07 Dispositif de chargement pour le chargement en vrac de matières poussiéreuses Expired - Lifetime EP0446790B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4008553A DE4008553A1 (de) 1990-03-16 1990-03-16 Verladevorrichtung fuer die lose verladung von staubigen schuettguetern
DE4008553 1990-03-16

Publications (2)

Publication Number Publication Date
EP0446790A1 true EP0446790A1 (fr) 1991-09-18
EP0446790B1 EP0446790B1 (fr) 1994-07-13

Family

ID=6402411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103512A Expired - Lifetime EP0446790B1 (fr) 1990-03-16 1991-03-07 Dispositif de chargement pour le chargement en vrac de matières poussiéreuses

Country Status (3)

Country Link
EP (1) EP0446790B1 (fr)
AT (1) ATE108413T1 (fr)
DE (2) DE4008553A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547861A1 (fr) * 1991-12-16 1993-06-23 Matcon Limited Dispositif et système pour le transfert de matières en vrac d'un conteneur à un autre sans libération de poussières
CN103252039A (zh) * 2013-05-10 2013-08-21 苏州嘉目工程有限公司 新型灭火器冲料装置
CN107096466A (zh) * 2017-07-06 2017-08-29 南京新天兴影像科技有限公司 一种复印机色调剂生产用混料机进料机构
CN111907955A (zh) * 2020-08-25 2020-11-10 江西增鑫科技股份有限公司 一种适用于畜牧业的储料塔

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021001180A1 (de) 2021-03-05 2022-09-08 Volkmann Gesellschaft mit beschränkter Haftung Ventil, Behälter und Dosierverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635377A (en) * 1969-08-19 1972-01-18 Conair Material-transporting device
DE2313779A1 (de) * 1973-03-20 1974-09-26 Aachener Verfahrenstechnik & A Beladevorrichtung oder beladekopf fuer schuettgut
EP0117397A1 (fr) * 1983-01-27 1984-09-05 Rheinische Kalksteinwerke GmbH. Procédé pour remplir un extracteur de cuve
DD239577A1 (de) * 1985-07-23 1986-10-01 Dessau Zementanlagenbau Veb Fuellkopf fuer beladegarnitur
DE3708653A1 (de) * 1987-03-17 1988-09-29 Agrichema Materialflusstechnik Verladevorrichtung fuer lose verladung von staubigen schuettguetern

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE402746B (sv) * 1975-12-17 1978-07-17 Scaniainventor Ab Utlastningsanordning for fast partikelformigt material
DE2622199A1 (de) * 1976-05-19 1977-12-01 Magnus Malmberg Auslaufkopf zu verladearm fuer leicht brennbare mineraloele mit selbsttaetiger zweistufenregelung
DE2657636C3 (de) * 1976-12-20 1981-02-19 Buehler-Miag Gmbh, 3300 Braunschweig Verschlußvorrichtung für öffnungen eines chargenweise mit rieselfähigem Schüttgut, zähflieBenden Aufschwemmungen, Schlämmen o.dgl. beschick- und entleerbaren Behälters
FR2398683A1 (fr) * 1977-07-29 1979-02-23 Expertises Cie Maritime Dispositif pour extraire, sous l'action d'un fluide vehicule, un produit contenu dans un reservoir
DE3425592A1 (de) * 1984-07-11 1986-01-23 Krupp Polysius Ag, 4720 Beckum Siloaustragsvorrichtung
DE3515367A1 (de) * 1985-04-27 1986-10-30 KBI Klöckner-Becorit Industrietechnik GmbH, 4224 Hünxe Verfahren und vorrichtung zur abgabe von schuettgut aus einem behaelter
ES2010672B3 (es) * 1985-10-31 1989-12-01 Alusuisse Dispositivo para cargar recipientes para material a granel y su utilizacion.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635377A (en) * 1969-08-19 1972-01-18 Conair Material-transporting device
DE2313779A1 (de) * 1973-03-20 1974-09-26 Aachener Verfahrenstechnik & A Beladevorrichtung oder beladekopf fuer schuettgut
EP0117397A1 (fr) * 1983-01-27 1984-09-05 Rheinische Kalksteinwerke GmbH. Procédé pour remplir un extracteur de cuve
DD239577A1 (de) * 1985-07-23 1986-10-01 Dessau Zementanlagenbau Veb Fuellkopf fuer beladegarnitur
DE3708653A1 (de) * 1987-03-17 1988-09-29 Agrichema Materialflusstechnik Verladevorrichtung fuer lose verladung von staubigen schuettguetern

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547861A1 (fr) * 1991-12-16 1993-06-23 Matcon Limited Dispositif et système pour le transfert de matières en vrac d'un conteneur à un autre sans libération de poussières
US5351864A (en) * 1991-12-16 1994-10-04 Matcon Limited Apparatus for transferring flowable material to a receptacle and system incorporating the same
CN103252039A (zh) * 2013-05-10 2013-08-21 苏州嘉目工程有限公司 新型灭火器冲料装置
CN107096466A (zh) * 2017-07-06 2017-08-29 南京新天兴影像科技有限公司 一种复印机色调剂生产用混料机进料机构
CN111907955A (zh) * 2020-08-25 2020-11-10 江西增鑫科技股份有限公司 一种适用于畜牧业的储料塔

Also Published As

Publication number Publication date
EP0446790B1 (fr) 1994-07-13
ATE108413T1 (de) 1994-07-15
DE59102137D1 (de) 1994-08-18
DE4008553A1 (de) 1991-09-19

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