EP0148360B1 - Procédé pour compacter et/ou remplir des matières pulvérulentes - Google Patents

Procédé pour compacter et/ou remplir des matières pulvérulentes Download PDF

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Publication number
EP0148360B1
EP0148360B1 EP84113391A EP84113391A EP0148360B1 EP 0148360 B1 EP0148360 B1 EP 0148360B1 EP 84113391 A EP84113391 A EP 84113391A EP 84113391 A EP84113391 A EP 84113391A EP 0148360 B1 EP0148360 B1 EP 0148360B1
Authority
EP
European Patent Office
Prior art keywords
container
filling
tube
separator
separating device
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
Application number
EP84113391A
Other languages
German (de)
English (en)
Other versions
EP0148360A3 (en
EP0148360A2 (fr
Inventor
Herbert Ginter
Gerhard Dr. Düsing
Wolfgang Eckert
Reinhard Dr. Manner
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.)
Evonik Operations GmbH
Original Assignee
Degussa 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 Degussa GmbH filed Critical Degussa GmbH
Publication of EP0148360A2 publication Critical patent/EP0148360A2/fr
Publication of EP0148360A3 publication Critical patent/EP0148360A3/de
Application granted granted Critical
Publication of EP0148360B1 publication Critical patent/EP0148360B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/04—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers having air-escape, or air-withdrawal, passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/20—Reducing volume of filled material

Definitions

  • the invention relates to a method for compacting and / or filling powdery substances in rigid or flexible containers, wherein the powdery substance is filled into the container by means of at least one tube, which can carry out a filling movement relative to the container within the container, and the powdery substance by means of a separating device (2) from the fluidizing medium which may be present or retained in the container, while the fluidizing medium which may be present is allowed to escape from the container through the gas-permeable surface of the separating device by means of a suitable pressure gradient.
  • Powdery materials are placed in flexible or rigid containers, such as. B. drums or sacks.
  • Some powdery substances in particular pyrogenic oxides or mixed oxides of metals and / or metalloids, such as. B. pyrogenic silicon dioxide, have a low bulk density and / or are heavily permeated with air. These properties require large containers for filling and transport, which inevitably result in high packaging and transport costs.
  • Filling systems which allow the pulverulent substances to be vented (compressed) at the same time during filling. Due to the increased bulk density of the filled powdered substance, smaller containers are required or larger quantities of powdered substance can be introduced into existing containers. Storage space is saved and transportation costs are reduced.
  • US-A-2 352 663 describes a device for packaging flour, feed or bran in containers or bags according to the preamble of claim 1.
  • This device basically consists of a tube, in which a screw rotates at high speed (approx. 2000 revolutions per minute) at the lower end.
  • the flour or the like should be compacted at high speed. Since the filling tube is screwed up from the bottom of the container by means of the screw, it stands on the compacted material after filling. The problem of air discharge from the compacted flour or the like is solved as follows:.
  • This method is not suitable for the packaging of synthetic silicas and in particular for the packaging of pyrogenic silica, because fluidized pyrogenic silica behaves like a thin liquid (analogous to water).
  • Another major disadvantage of the known method is that the air that is released during compression is returned to the bulk material and flows in countercurrent to the bulk material via the telescopic tube. This can cause traffic jams in the conveyor system.
  • Another disadvantage is that the flour is mechanically stressed by the high speed of rotation of the screw.
  • the known filling method by means of a flow compressor has the disadvantage that the powdery material is loosened again on the way into the container after the compression. If a specific density is to be achieved in the container, this can only be achieved by over-compressing the pulverulent substance in the compacting device. There is a risk that the application properties of the powdery substance, such as. B. the dispersibility, could be changed in an undesirable manner.
  • the object of the invention when filling powdery substances is to achieve a homogeneous consistency in the entire container volume range and an increase in the mean consistency in the Containers without undesirable changes in the application properties, e.g. B. dispersibility and thickening effect.
  • the invention relates to a method for compacting and / or filling powdery substances in rigid or flexible containers, whereby the powdery substance is formed by means of at least one tube (1) which performs a filling movement relative to the container (6) within the container (6) can be filled into the container (6) and the pulverulent substance separated from the possibly present fluidizing medium by means of a separating device or retained in the container (6), while the possibly existing fluidizing medium is removed through the gas-permeable surface of the separating device (2) allows the container (6) to escape by means of a suitable pressure gradient, which is characterized in that the separating device surrounds the pipe (1), is optionally arranged flush at the open end of the pipe (1) and a gas-solids separator which is suitable and which Container cross-section has an essentially dust-proof adapted surface, and that the filling level and thus optionally determines the degree of compaction of the powdery substance in the container by means of the respective position of the separating device (2).
  • the pulverulent substance for filling can be removed from a storage container by means of a fluidizing medium, in particular fluidiser air, and optionally also conveyed in a line to the filling device by means of a transport device.
  • a fluidizing medium in particular fluidiser air
  • the pipe with the separating device can first be led to the bottom or near the bottom of the container and then moved to the opening of the container in the form of a filling movement.
  • the filling movement can be brought about by the pressure of the pulverulent substance or gas / solid mixture in the container, wherein a counterforce, which is less than or equal to the compressive force of the pulverulent in the container, is optionally exerted on the pipe and thus also on the separating device Substance, or gas / solid mixture.
  • the filling movement can also be driven mechanically, pneumatically or hydraulically.
  • the pipe can be oscillated in the direction of its longitudinal axis with the separating device. which overlays the actual filling movement.
  • the oscillating movement can take place periodically or non-periodically with different strokes.
  • the amount of pulverulent substance can be metered volumetrically, the variable volume of the space remaining between the tank bottom, the tank walls and the separating device or gravimetrically using a scale.
  • any commercially usable gaseous substance such as air, nitrogen or carbon dioxide, can be used as the fluidizing medium.
  • Air is preferably used as the fluidizing medium.
  • a device suitable for conveying gas / solids such as a diaphragm pump, a gear pump or an eccentric screw pump, can be used as the transport device.
  • Another transport device for conveying the gas / solid mixture can be a pressure vessel.
  • a suitable operating pressure is applied to this pressure vessel.
  • Fluidizing air can be applied to the bottom of the pressure vessel during emptying.
  • the filling of the powdery substance can also be carried out simultaneously with several, for example two or three pipes. It is essential that these tubes are connected at their open end, possibly flush with the same separating device.
  • the pressure drop on the surface of the separating device that is unified for gas / solid separation can be generated by means of excess pressure in the fluidizing medium and / or by negative pressure at the container opening or the separating device.
  • an overpressure by the transport device for. B. generated by means of a diaphragm pump or an overpressure container.
  • the pressure drop can be constant over time or intermittent.
  • the area suitable for gas / solid separation can, for. B. made of sintered metal or more porous Ceramics exist.
  • the surface of the separating device can consist of a gas-permeable fabric or felt made of wire or natural or synthetic organic or inorganic fibers, which are arranged on stable, gas-permeable supports.
  • a perforated plate can be used as a stable support.
  • the surface suitable for gas / solid separation can be flat or curved. If the surface is curved, the tube or the tubes with the open end can be arranged on the concave side or on the convex side of the hollow body formed by the curved surface.
  • the surface suitable for gas / solid separation should be largely dust-tightly adapted to the container wall.
  • the interior of the rigid or flexible container should have a constant congruent cross-sectional area perpendicular to the longitudinal axis of the container, which is identical to the axis of the filling movement, along its longitudinal axis. This provides an adequate seal between the container wall and the separating device over the entire fill level.
  • the completion of the filling can take place in such a way that the gas / solid mixture conveyance and the relative movement from container to tube with separating device are ended at the same time, or that the relative movement from container to pipe with separating device is terminated before the gas / solid mixture conveyance has ended completed.
  • the container preferably with flexible containers, such as. B. sacks, are enclosed by a support structure that can absorb the mechanical stress that occurs during filling.
  • An advantage of the process according to the invention is that a higher average and more uniform density of the pulverulent substance in the container is obtained, the good application properties being retained. It allows greater flexibility in adjusting the average density of the powder in the container. Simpler and therefore cheaper containers can be used. A particular advantage is that largely gas or moisture-tight containers can be used. This means greater freedom in the choice of the material of the container.
  • the inventive method is suitable for filling carbon black, color pigments and / or silicas, such as. B. precipitated or pyrogenic silicas.
  • the method according to the invention is preferably suitable for filling pyrogenically produced oxides or mixed oxides of metals and / or metalloids, in particular of pyrogenically produced silicon dioxide.
  • the tube 1 is arranged on the separating device 2 on the convex side, the opening of which is flush with the concave side of the surface.
  • This consists of the perforated plate 3 on which the separating surface 4 for the separation of the gas / solid mixture is arranged.
  • the separating device 2 is surrounded by the ring 5 made of elastic material, whereby a largely dust-tight seal between the separating device 2 and the flexible wall of the container 6 is given.
  • the flexible wall of the container 6 is fastened in the frame 7 by means of the bracket 8.
  • the pulverulent substance mixed with air is conveyed through the pipe 1 into the space 9 between the separating device 2 and the flexible wall of the container 6.
  • the pulverulent substance is retained in this space 9 by the separating device 2, while the air escapes through the opening 10 of the separating device 2.
  • the separation device 2 is flat.
  • the pipe 1 ' is arranged flush on the separating device 2.
  • the wall of the container 6 is made of rigid material, so that a support structure is not required. To increase the stability, the container 6 is placed on the platform 11.
  • the separating device 2 is curved, the tube 1 projecting beyond the separating device 2 into the space 9.
  • the tube 1 is arranged on the concave side of the separating device 2. Furthermore, the same arrangement as in FIG. 1 is used.
  • the method according to the invention can be carried out as follows:
  • the tube 1, to which the separating device 2 is attached, is inserted into the container down to the bottom of the container. Then the gas / solid mixture, a pyrogenic silicon dioxide fluidized with air and transported by means of a pressure vessel and fluidizing air, is allowed to flow into the closed space 9 formed between the vessel bottom, vessel walls and separating device via the tube. The pulverulent substance remains in this space 9, while the fluidiser air escapes from the container 6 through the gas-permeable surface of the separating device 2.
  • the pipe 1 with the separating device 2 moves in a guided relative movement due to the force relationships on the separating device 2 from those to be filled Container 6 out.
  • a cross-bottom bag with the dimensions 550 x 220 x 1300 mm is attached to the bracket 8 and then slid over the separating device 2 by raising the frame 7 with the bracket 8 until the separating device 2, which has a needle felt surface, on the bag bottom or in whose proximity has reached.
  • the fluidized, pyrogenically produced silicon dioxide with a specific surface area of approx. 200 m 2 / g and a tamped density according to DIN 53 194 of 35 g / I is pumped through a tube 1 through the pipe 1 into the room 9, the filling pressure being approx 0.5 bar.
  • the frame 7 with the bag 6 is lowered at a lifting speed of approximately 0.6 m / min until the separating device reaches the filling end position.
  • the gas / solid mixture delivery is stopped by switching off the pump and the separating device is moved out of the cross-bottom bag by further lowering the frame 7.
  • the cross bottom sack is filled to a height of approx. 1100 mm with 10 kg of pyrogenic silicon dioxide.
  • the average density of this product is 75 g / I with a density fluctuation of + 5 / -10 g / I.
  • the separation device 2 at the lower end of the tube 1, consists of a perforated plate on which a filter fabric LAINYL M9 / S5 / HCa .. is attached as a separation surface 4.
  • the separating pre-seal is sealed against the container 6 by means of an O-ring 5.
  • the fluidized, pyrogenically produced silicon dioxide with a surface of approx. 200 m 2 / g and a tamped density according to DIN 53 194 of approx. 35 g / I is pumped through a tube 1 through the pipe 1 into the room 9, the filling pressure being approx 0.5 bar.
  • the container 6 is lowered at a stroke speed of approximately 0.6 m / min until the separating device reaches the filling end position.
  • the gas / solid mixture delivery is stopped by switching off the pump and the separating device is moved out of the container 6 by further lowering the frame 7.
  • the container is filled to a height of approx. 250 mm with pyrogenic silicon dioxide.
  • the silicon dioxide has an average density of approx. 67 g / I with a fluctuation range of the average density in the individual ring elements of the container of + 3 / - 5 g / I.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Claims (4)

1. Procédé de compactage et/ou de remplissage de matières pulvérulentes dans des reservoirs rigides ou flexibles dans lequel on introduit la matière pulvérulente au moyen d'au moins un tube (1) lequel peut effectuer à l'intérieur du récipient (6) un mouvement de remplissage relativement au réservoir (6) et sépare la matière pulvérulente du milieu fluidisant éventuellement présent au moyen d'un dispositif de séparation qu'on maintient dans le réservoir (6) pendant qu'on laisse échapper le milieu de fluidisation éventuellement présent à travers les faces perméables aux gaz du dispositif de séparation (2), en dehors du réservoir (6) au moyen d'une hauteur de pressions appropriée, caractérisé en ce que le dispositif de séparation (2) entoure le tube (1), est disposé à l'extrémité ouverte du tube (1), éventuellement à fleur et possède des faces adaptées à une séparation Gaz/substance solide d'une manière appropriée et à la section transversale du réservoir essentiellement étanche à la poussière, et que l'on détermine la hauteur de remplissage et ainsi éventuellement le degré de compactage de la matière pulvérulente dans le réservoir au moyen de la position correspondante du dispositif de séparation (2).
2. Procédé selon la revendication 1, caractérisé en ce que l'on retire la matière pulvérulente à déverser, d'un réservoir d'approvisionnement au moyen d'un milieu de fluidisation, en particulier de l'air à fluidiser et le cas échéant, en outre on la transporte au moyen d'un dispositif de transport dans une conduite, au dispositif de remplissage.
3. Procédé selon les revendications 1 ou 2, caractérisé en ce que l'on conduit avant l'introduction de la matière pulvérulente dans le récipient, le tube avec le dispositif de séparation en premier lieu sur le fond ou au voisinage du fond du réservoir et ensuite le fait se déplacer vers l'ouverture du réservoir sous la forme d'un mouvement de remplissage.
4. Procédé selon la revendication 3, caractérisé en ce que l'on fait exécuter au tube dans le sens de son axe longitudinal avec le dispositif de séparation, un mouvement oscillant qui se superpose au mouvement propre de remplissage.
EP84113391A 1984-01-07 1984-11-07 Procédé pour compacter et/ou remplir des matières pulvérulentes Expired EP0148360B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3400415 1984-01-07
DE19843400415 DE3400415A1 (de) 1984-01-07 1984-01-07 Verfahren zum verdichten und/oder befuellen von pulverfoermigen stoffen

Publications (3)

Publication Number Publication Date
EP0148360A2 EP0148360A2 (fr) 1985-07-17
EP0148360A3 EP0148360A3 (en) 1986-10-01
EP0148360B1 true EP0148360B1 (fr) 1988-10-12

Family

ID=6224491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113391A Expired EP0148360B1 (fr) 1984-01-07 1984-11-07 Procédé pour compacter et/ou remplir des matières pulvérulentes

Country Status (5)

Country Link
US (1) US4770214A (fr)
EP (1) EP0148360B1 (fr)
JP (1) JPS60158001A (fr)
BR (1) BR8500026A (fr)
DE (2) DE3400415A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985143A (en) * 1988-06-06 1991-01-15 The University Of Maryland Method for packing chromatographic beds
DE4009369A1 (de) * 1990-03-23 1991-09-26 Celcommerz High Chem Produkte Sackfoermiges verpackungsmittel
US6193795B1 (en) 1993-08-02 2001-02-27 Degussa Corporation Low structure pyrogenic hydrophilic and hydrophobic metallic oxides, production and use
US5479968A (en) * 1993-08-16 1996-01-02 Xerox Corporation Ink filling apparatus and method for filling ink cartridges
JP5070120B2 (ja) * 2008-05-08 2012-11-07 紀伊産業株式会社 粉体充填装置および粉体充填方法
KR200452742Y1 (ko) 2009-05-08 2011-03-17 (주)아모레퍼시픽 개선된 구조를 갖는 건식 파우더 화장품의 에어제거용 성형치구
DE102011103876B3 (de) * 2011-06-10 2012-03-15 Leibinger Smb Technik Gmbh Vorrichtung zum Befüllen eines Behältnisses mit einer insbesondere zum Verzehr bestimmten Flüssigkeit
CA2853964A1 (fr) * 2011-11-01 2013-05-10 Altria Client Services Inc. Appareil et procede permettant d'emballer un produit en vrac
PL3184971T3 (pl) * 2015-12-21 2019-04-30 Fydec Holding Sa Urządzenie do dozowania najmniejszych ilości, w szczególności do zastosowań farmaceutycznych, a także sposób dozowania najmniejszych ilości proszku
JP6834249B2 (ja) * 2016-02-18 2021-02-24 大同特殊鋼株式会社 粉末充填装置及び焼結磁石製造装置
JP6848544B2 (ja) * 2017-03-09 2021-03-24 大同特殊鋼株式会社 粉末充填装置、焼結磁石製造装置及び焼結磁石製造方法
CN110871271B (zh) * 2018-08-29 2022-02-25 大同特殊钢株式会社 粉末填充装置、烧结磁体制造装置以及烧结磁体制造方法
US10960995B2 (en) * 2019-07-24 2021-03-30 Ford Global Technologies, Llc Methods and apparatuses for filling adsorbent powder in a hydrogen or natural gas tank
CN113134990A (zh) * 2021-04-26 2021-07-20 洛阳景瑞工业科技有限公司 一种细粉容器的细粉装填方法

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DE176156C (fr) *
US367857A (en) * 1887-08-09 Flour-packer
US494979A (en) * 1893-04-04 Lead-packer
US2350438A (en) * 1940-10-02 1944-06-06 Crown Can Company Plunger pad for container closing machines
US2352663A (en) * 1941-02-07 1944-07-04 Sowden Alfred Packing machine for containers and the like
US3181575A (en) * 1961-11-09 1965-05-04 Paktronic Machine Corp Filling machines
US3716081A (en) * 1971-03-29 1973-02-13 Dow Chemical Co Apparatus and method for tamping particulate materials into a container
GB1535757A (en) * 1976-11-15 1978-12-13 Vita Int Ltd Bag filling nozzle
FR2377937A1 (fr) * 1977-01-20 1978-08-18 Alfa Laval Ag Procede et dispositif pour la desaeration des poudres, telles que poudres de lait

Also Published As

Publication number Publication date
EP0148360A3 (en) 1986-10-01
JPS60158001A (ja) 1985-08-19
DE3400415A1 (de) 1985-07-18
BR8500026A (pt) 1985-08-13
US4770214A (en) 1988-09-13
DE3474535D1 (en) 1988-11-17
EP0148360A2 (fr) 1985-07-17

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