WO2006045296A2 - Procede et dispositif de vidage complet d'un contenant - Google Patents

Procede et dispositif de vidage complet d'un contenant Download PDF

Info

Publication number
WO2006045296A2
WO2006045296A2 PCT/DE2005/001933 DE2005001933W WO2006045296A2 WO 2006045296 A2 WO2006045296 A2 WO 2006045296A2 DE 2005001933 W DE2005001933 W DE 2005001933W WO 2006045296 A2 WO2006045296 A2 WO 2006045296A2
Authority
WO
WIPO (PCT)
Prior art keywords
container
gas
emptying
fine
tight
Prior art date
Application number
PCT/DE2005/001933
Other languages
German (de)
English (en)
Other versions
WO2006045296A3 (fr
Inventor
Ralf Kretzschmar
Original Assignee
Glatt Systemtechnik 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 Glatt Systemtechnik Gmbh filed Critical Glatt Systemtechnik Gmbh
Publication of WO2006045296A2 publication Critical patent/WO2006045296A2/fr
Publication of WO2006045296A3 publication Critical patent/WO2006045296A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/08—Devices for emptying storage spaces as completely as possible
    • 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
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
    • B65D88/66—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices
    • B65D88/665—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices using a resonator, e.g. supersonic generator

Definitions

  • the invention relates to a method and a device for emptying the residue of a container according to the preamble of claim 1 or claim 4.
  • the invention serves, in particular, for emptying the container for dry fine-grained solids as completely as possible sensitive or toxic granulated or powdery solid particles in the chemical or pharmaceutical industry.
  • the container may be subjected to a separate mechanical cleaning or wet cleaning.
  • DD 4345 indicates an arrangement of a vibrator on bunkers or silos in which the vibrator is detachably mounted in the discharge funnel wall.
  • DT 23 26 176 describes a pneumatic sound activator with a pneumatic sound transmitter for blowing air modulated with a sound frequency into a container for fine-grained, granulated or heavy-liquid material through an air-permeable wall section.
  • the device is used to facilitate the emptying of the material in silos or other Vorrats ⁇ containers by remplissigmachung the material.
  • the invention is based on the object, a method and a device for the effective and low-noise emptying of a container for dry fine-grained
  • the task for the device is to be solved in a technically simple manner, wherein the device can be arranged at least temporarily for emptying the container.
  • the container for emptying the emptying is closed gas-tight after the coarse emptying and the gas in the container by means of periodic mechanical change of the gas volume in a pressure oscillation. Based on the specific container and the specific solid particles, a specific pressure difference with a specific frequency is generated. The pressure oscillation is maintained at least until the adhering to the wall of the container fine-grained solids are placed in a resonance vibration to the pressure oscillation in the container and fall under the action of gravity from the wall of the container.
  • the solid particles regularly adhere loosely and elastically, in particular due to adhesion forces on the container wall. It has been found that the dry fine-grained (granular or pulverulent) solid particles can be caused to oscillate by pressure oscillations of the gas in the container in such a way that they make a strong relative movement relative to the relatively rigid container wall. ⁇ When creating a pressure wave, the solid particles are pressed into resonance to the pressure oscillation to the vessel wall and as a result, the solid particles is pressed away by the inherent elasticity and gases between the vessel wall and the single solid particles from the vessel wall as the pressure wave. In this case, the adhesion forces between the individual solid particles and the container wall are overcome by the gravity acting on the solid particles, ie the fine-grained solids fall downwards.
  • the method can also be varied in such a way that the periodic pressure oscillation is interrupted after a predetermined period of time and the fine-grained solids fallen down to this point are removed from the container before the same or modified periodic parameters Pressure oscillation is repeated.
  • the device according to the invention for emptying a container for fine-grained solids has a device for generating a periodic axial movement, which acts axially on a gas-tight axial-elastic element, which is designed such that it flanged gas-tight to a sealing surface can be.
  • the sealing surface is provided directly or indirectly at an opening of the container.
  • the gas-tight, axially elastic element thus directly adjoins the gas volume in the container.
  • the container is sealed gas-tight, the total volume in the interior of the container can be varied by periodic axial movement of the axially elastic element and a pressure oscillation with specific Frequency and pressure difference can be formed.
  • the gas-tight axial-elastic member may be a diaphragm, a bellows or a similar known member.
  • the device according to the invention can be used in various ways. It can be permanently arranged on the container, the opening on the container being a specific opening for the device according to the invention.
  • the device can also be integrated in the lid of the container or as a separate device only temporarily placed on the filling opening of the container.
  • the device can furthermore according to claim 7 have a vibration device, which is arranged on the container such that at least parts of the surfaces of the container, to which preferably fine-grained solids can adhere, can be set in vibration.
  • This vibration device operates independently of the device for generating the pressure oscillation in the container.
  • the device according to the invention consists of a cylindrical housing, on which a gas-tight metal bellows is arranged.
  • the housing and the metal bellows have a maximum diameter, so that they can be easily inserted into the upper opening of the container and connected to this gas-tight.
  • the metal bellows are connected to a mechanical-pneumatic vibrator capable of applying a frequency of between 10 and 200 Vs to the metal bellows with an amplitude adjustable between 1 and 500 mm.
  • the device according to the invention is introduced into the upper opening of the container and connected to this gas-tight.
  • the outlet opening and other openings on the container are sealed gas-tight.
  • the metal bellows is vibrated via the vibration generator, whereby the entire volume of gas in the container is set in vibration.
  • the surprising effect of the method according to the invention is based on the fact that the individual pulverulent solid particles adhering to the wall of the container are set into a resonance oscillation to the oscillation of the gas volume in the container. This leads to a relative movement of the solid particles relative to the wall of the container, which leads to the temporary abolition of the adhesion forces, whereby the gravity of the solid particles comes into effect and the solid particle is moved downwards in the direction of the outlet opening.
  • the container is emptied substantially completely in a surprising manner so that it can be refilled immediately or, in the case of a required wet cleaning, it is made much easier.

Abstract

Après vidage grossier, le contenant est fermé de manière étanche aux gaz pour le vidage complet, et le gaz contenu dans le contenant est mis en oscillation de pression par variation mécanique périodique du volume de gaz, la production des vibrations de pression étant maintenue jusqu'à ce que les fines particules solides adhérant à la paroi du contenant soient mises en résonance et se détachent sous l'effet de la gravité. La fréquence des vibrations de pression est de 10 à 200 l/s et est accordée avec l'amplitude de telle manière que la différence de pression moyenne régnant dans le contenant est de 10 à 2000 mbar. Le dispositif selon l'invention comporte un système de production d'un mouvement axial périodique affectant axialement un élément étanche aux gaz, axialement élastique, par ex. une membrane ou un soufflet, pouvant être disposé de façon étanche aux gaz sur une ouverture du contenant.
PCT/DE2005/001933 2004-10-25 2005-10-24 Procede et dispositif de vidage complet d'un contenant WO2006045296A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004051947 2004-10-25
DE102004051947.1 2004-10-25

Publications (2)

Publication Number Publication Date
WO2006045296A2 true WO2006045296A2 (fr) 2006-05-04
WO2006045296A3 WO2006045296A3 (fr) 2006-06-22

Family

ID=36097222

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/001933 WO2006045296A2 (fr) 2004-10-25 2005-10-24 Procede et dispositif de vidage complet d'un contenant

Country Status (1)

Country Link
WO (1) WO2006045296A2 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535107A1 (de) * 1975-08-06 1977-03-03 Mathieu Ernst Ulrich Verfahren und vorrichtung zum abreinigen, auflockern und verbessern der fliesseigenschaft von kornfoermigem oder stueckigem gut
DE2627387A1 (de) * 1976-06-18 1977-12-29 Otto Albrecht Pneumatische impuls-ruetteleinrichtung
US6450754B1 (en) * 2000-06-21 2002-09-17 Cp Motion Products, Inc. Bulk bag discharger for dry flowable materials
WO2004002394A2 (fr) * 2002-06-27 2004-01-08 Oriel Therapeutics, Inc. Systemes de remplissage de dose de poudre seche, et procedes connexes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535107A1 (de) * 1975-08-06 1977-03-03 Mathieu Ernst Ulrich Verfahren und vorrichtung zum abreinigen, auflockern und verbessern der fliesseigenschaft von kornfoermigem oder stueckigem gut
DE2627387A1 (de) * 1976-06-18 1977-12-29 Otto Albrecht Pneumatische impuls-ruetteleinrichtung
US6450754B1 (en) * 2000-06-21 2002-09-17 Cp Motion Products, Inc. Bulk bag discharger for dry flowable materials
WO2004002394A2 (fr) * 2002-06-27 2004-01-08 Oriel Therapeutics, Inc. Systemes de remplissage de dose de poudre seche, et procedes connexes

Also Published As

Publication number Publication date
WO2006045296A3 (fr) 2006-06-22

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