WO1997038904A1 - Procede et dispositif pour eviter l'emission de poussiere ou de gaz lors du transvasement avec des systemes doseurs de solides ou de liquides - Google Patents

Procede et dispositif pour eviter l'emission de poussiere ou de gaz lors du transvasement avec des systemes doseurs de solides ou de liquides Download PDF

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Publication number
WO1997038904A1
WO1997038904A1 PCT/CH1997/000149 CH9700149W WO9738904A1 WO 1997038904 A1 WO1997038904 A1 WO 1997038904A1 CH 9700149 W CH9700149 W CH 9700149W WO 9738904 A1 WO9738904 A1 WO 9738904A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
gas
filling
product
suction
Prior art date
Application number
PCT/CH1997/000149
Other languages
German (de)
English (en)
Inventor
Lorenz Bohler
Original Assignee
Lorenz Bohler
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 Lorenz Bohler filed Critical Lorenz Bohler
Priority to DE59702501T priority Critical patent/DE59702501D1/de
Priority to EP97915249A priority patent/EP0900164B1/fr
Publication of WO1997038904A1 publication Critical patent/WO1997038904A1/fr

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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
    • 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
    • B65B1/28—Controlling escape of air or dust from containers or receptacles during filling

Definitions

  • the invention relates to a method and a device for avoiding product dust or product gas leakage when filling with solid or liquid metering systems according to the preamble of claims 1 and 6, respectively.
  • Powdery and liquid substances produced by the industry have to be dosed for transport and sale and filled into containers.
  • Special solids or liquid metering devices have been developed so that metering and filling can be carried out as quickly and efficiently as possible.
  • Dosing devices of this type usually comprise a product storage silo which tapers from top to bottom and at the lower end of which a vertically extending filling tube emerges. The passage through the filling tube can be opened and closed with the aid of a slide. The filling pipe goes up to the upper part of the container, which is to hold a certain amount of the product to be filled.
  • the container is fixed in a suitable position during metering and filling.
  • closed systems that cause lower emissions.
  • Such closed systems are known to be achieved by creating a tight connection between the container and the filling tube.
  • devices are required which remove or extract the air which is displaced from the container when a product is filled.
  • the suction device In known metering devices for filling e.g. sack-shaped containers, the suction device consists, for example, of a funnel-shaped sack spout, the top end of which is closed with a bowl-like cover.
  • the filler tube penetrates the cover in the middle. An upper portion of the fill tube protrudes from the top of the cover. A lower section protrudes into the bag neck.
  • the sack nozzle and the cover are gas-tight.
  • a suction or aspiration tube opens into the cover. This aspiration tube is connected to the cover hood in a gas-tight manner on its lower end face.
  • An annular, inflatable inflation hose can be used, for example, to attach a sack-shaped container, which is attached to the outside of the sack nozzle.
  • the outer diameter of the inflation hose is smaller than the inner diameter of the bag-shaped container, so that the upper end section of the container can be slipped over the lower end section of the bag connector and over the inflation hose. If the inflation hose is inflated with the container placed over it, then its outer diameter increases and the wall of the inflation hose is pressed against the container wall. The container is thereby fixed and, at the same time, a tight connection is achieved between the sack nozzle and the container.
  • the suction device consists, for example, of a conical connecting piece, the upper end of which is closed gas-tight with a cover.
  • a plate-shaped cover is attached to the lower end of the connecting piece.
  • the container can be closed gas-tight with this lid.
  • the suction or aspiration tube also opens into the cover.
  • a lifting platform can be used for the correct positioning of a barrel-shaped or kessiform container under the filling tube.
  • the lid closes the container when it has been lifted into its uppermost end position with the lifting platform. If air is sucked out of the container through the aspiration tube, then a negative pressure builds up in the container and in the connecting piece. During the filling of a liquid product, the resulting gas is not sucked off due to this negative pressure. Rather, an existing gas column forms in the container above the ready-filled product and above the container.
  • the container was pressure or highly aspirated dosing device detached from the sack nozzle or from the lid.
  • ambient air was sucked in through this gap.
  • the inflowing ambient air allowed the suction of that part of the dust or gas which was above the container.
  • that part of the dust or gas that was in the container could not be removed. If the container was handled after filling, then the dust remaining in the container or the gas remaining in the container escaped into the ambient air or into the atmosphere. This was particularly the case when a sack-shaped container was compressed after filling.
  • the present invention therefore has the task of creating a method and a device with which the emergence of product dust or gas when filling powdery or liquid products with the aid of solid or liquid dose systems can be reliably avoided .
  • the object is achieved with the aid of the features of patent claims 1 and 6 according to the invention.
  • Advantageous developments of the invention are the subject of the dependent claims.
  • the proposed method consists in that gas, in particular air, is blown into the container as far as possible in the center of the container before the container is released from a metering device of known type equipped with a suction device.
  • the blowing direction is preferably perpendicular.
  • Air blown in in a defined manner is extracted together with the product dust or the product gas through the suction or aspiration pipe of the suction device.
  • the product dust or product gas is thus flushed away with the aid of the gas blown in.
  • a flushing pipe is used which penetrates the cover of the suction device and extends along the filling pipe to the bottom of the filling pipe.
  • FIG. 1 a shows a longitudinal section through the lower part of a metering device which is equipped with the proposed device
  • Fig. Lb shows a cross section A-A through the lower part of a metering device according to Fig. La and
  • FIG. 2 shows a side view of a metering device which is equipped with the proposed device.
  • the drawings show a device for avoiding product dust or product gas leakage, which e.g. is installed in a conventional metering device 1 for filling sack-like containers 5.
  • the metering device 1 is equipped with a suction device of a known type, which consists of a bag spout 2 with inflation hose 6, a cover 3 and an aspiration or suction pipe 4.
  • the embodiment of the proposed device has a first flushing pipe 7, which penetrates the cover 3 and extends below the cover 3 along the fill pipe 8 to the lower end of the fill pipe 8 (see FIGS. 1 a, 1b and 2). .
  • the lower end face of the flushing pipe 7 is with the lower end of the filler tube 8 flush.
  • the passage of the flushing tube 7 in the cover 3 is gastight.
  • the proposed device has a second flushing pipe 15, which also extends outside the cover 3 parallel to the filling pipe 8 and penetrates the inflation hose 6 from top to bottom. The two passages on the inflation hose 6 are gas-tight.
  • a flat, hollow deflection ring 13 is arranged below the inflation hose 6.
  • the lower end of the second flushing pipe 15 opens into this deflection ring 13.
  • the deflection ring 13 has a plurality of nozzles 14 which open laterally outwards.
  • the nozzles 14 are arranged at regular intervals along the circumference of the deflection ring 13. When gas is blown into the flushing pipe 15, this gas enters the deflection ring 13 and flows out through the side nozzles 14.
  • a filling process proceeds as follows:
  • an empty container 5 is attached to the sack nozzle 2 with the aid of the inflation hose 6.
  • the deflection ring 13 has the upper inner wall section of the container 5 from the inflation hose 6.
  • a vacuum is then generated with the help of the aspiration or suction tube 4 in the room, which is delimited by the cover 3, the sack nozzle 2, the inflation hose 6, the container 5 and the closed slide 9 of the filling tube 8.
  • a certain amount of the product 10 falls down into the container 5.
  • the air displaced by the filled product 10 is sucked off through the aspiration or suction tube 4.
  • a standing dust cloud 11 remains above the filled product 10.
  • gas in particular air, is blown into the second flushing pipe 15. The gas emerges laterally through the nozzles 14 from the deflection ring 13 and thus prevents the inflation hose 6 from being contaminated Product dust.
  • gas in particular air
  • the gas flow 12 is diverted upward through the surface of the filled product 10. Due to the suction of the aspiration or suction tube 4, it flows upwards through the intermediate space between the sack nozzle wall and the filling tube wall, thereby tearing the dust particles with it.
  • the gas permeated with dust is finally sucked into the aspiration or suction tube 4.
  • the dust particles are separated from the gas with the aid of a filter (not shown). The gas can then be returned to the purge pipe 7.
  • a closed circuit can therefore be implemented for the flushing gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Abstract

Le procédé décrit consiste à insuffler du gaz, notamment de l'air, aussi près que possible du centre du fût (5), avant de séparer ce dernier d'un dispositif doseur (1) à système d'aspiration. Le sens préféré d'injection est vertical. Le gaz injecté est aspiré, conjointement avec la poussière ou le gaz des produits, par le tuyau d'aspiration (4) du système d'aspiration. Le gaz injecté permet également, pour ainsi dire, d'éliminer par balayage la poussière ou le gaz des produits. Pour mettre en oeuvre ce procédé, on utilise un tuyau de balayage (7) qui pénètre dans le capot (3) du système d'aspiration et s'étend le long du bord inférieur du tuyau de remplissage (8) du dispositif doseur (1).
PCT/CH1997/000149 1996-04-16 1997-04-15 Procede et dispositif pour eviter l'emission de poussiere ou de gaz lors du transvasement avec des systemes doseurs de solides ou de liquides WO1997038904A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59702501T DE59702501D1 (de) 1996-04-16 1997-04-15 Verfahren und vorrichtung zur vermeidung von produktestaub- oder produktegasaustritt bei abfüllung mit feststoff- oder flüssigkeitsdosiersystemen
EP97915249A EP0900164B1 (fr) 1996-04-16 1997-04-15 Procede et dispositif pour eviter l'emission de poussiere ou de gaz lors du transvasement avec des systemes doseurs de solides ou de liquides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH963/96 1996-04-16
CH96396A CH690573A5 (de) 1996-04-16 1996-04-16 Verfahren und Vorrichtung zur Vermeidung von Produktestaub- oder Produktegasaustritt bei Abfüllung mit Feststoff- oder Flüssigkeitsdosiersystemen.

Publications (1)

Publication Number Publication Date
WO1997038904A1 true WO1997038904A1 (fr) 1997-10-23

Family

ID=4199269

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1997/000149 WO1997038904A1 (fr) 1996-04-16 1997-04-15 Procede et dispositif pour eviter l'emission de poussiere ou de gaz lors du transvasement avec des systemes doseurs de solides ou de liquides

Country Status (4)

Country Link
EP (1) EP0900164B1 (fr)
CH (1) CH690573A5 (fr)
DE (1) DE59702501D1 (fr)
WO (1) WO1997038904A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072509A1 (fr) * 1999-07-26 2001-01-31 Neuhäuser GmbH, Umwelt-, Dosier- und Transporttechnologie Dispositif pour l'étanchéification aux gaz
FR2798360A1 (fr) * 1999-09-14 2001-03-16 Cogema Dispositif pour l'admission controlee d'une poudre nocive dans une boite
WO2002070347A1 (fr) * 2001-03-05 2002-09-12 Windmöller & Hölscher Kg Dispositif pour ensacher de la marchandise en vrac
KR101830115B1 (ko) * 2016-04-22 2018-02-22 이대엽 분체포장장치의 2중 분진포집이 가능한 백필업 슈트
CN114506480A (zh) * 2022-04-18 2022-05-17 杭州崎枳环保科技有限公司 一种环保的灌粉机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105691654B (zh) * 2014-11-28 2020-05-05 重庆七彩虹化工有限公司 粉末涂料消尘装袋装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495102A1 (fr) * 1980-11-28 1982-06-04 Generale Engrais Sa Procede et dispositif permettant de remplir des emballages souples tels que des sacs
US5316056A (en) * 1991-03-14 1994-05-31 L. E. Stott Limited Powder dispensing apparatus
DE4406605A1 (de) * 1994-03-01 1995-09-07 Bosch Gmbh Robert Schlauchbeutelmaschine mit einer Einrichtung zum Staubfreihalten der Innenseite eines Folienschlauches in dessen Siegelbereich

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495102A1 (fr) * 1980-11-28 1982-06-04 Generale Engrais Sa Procede et dispositif permettant de remplir des emballages souples tels que des sacs
US5316056A (en) * 1991-03-14 1994-05-31 L. E. Stott Limited Powder dispensing apparatus
DE4406605A1 (de) * 1994-03-01 1995-09-07 Bosch Gmbh Robert Schlauchbeutelmaschine mit einer Einrichtung zum Staubfreihalten der Innenseite eines Folienschlauches in dessen Siegelbereich

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072509A1 (fr) * 1999-07-26 2001-01-31 Neuhäuser GmbH, Umwelt-, Dosier- und Transporttechnologie Dispositif pour l'étanchéification aux gaz
FR2798360A1 (fr) * 1999-09-14 2001-03-16 Cogema Dispositif pour l'admission controlee d'une poudre nocive dans une boite
EP1084953A1 (fr) * 1999-09-14 2001-03-21 Compagnie Generale Des Matieres Nucleaires Dispositif pour l'admission contrôlée d'une poudre nocive dans une bôite
US6550228B1 (en) 1999-09-14 2003-04-22 Compagnie Generale Des Matieres Nucleaires Device for the controlled admission of a noxious powder into a box
WO2002070347A1 (fr) * 2001-03-05 2002-09-12 Windmöller & Hölscher Kg Dispositif pour ensacher de la marchandise en vrac
US6868876B2 (en) 2001-03-05 2005-03-22 Windmoeller & Hoelscher Kg Device for bagging bulk material
KR101830115B1 (ko) * 2016-04-22 2018-02-22 이대엽 분체포장장치의 2중 분진포집이 가능한 백필업 슈트
CN114506480A (zh) * 2022-04-18 2022-05-17 杭州崎枳环保科技有限公司 一种环保的灌粉机
CN114506480B (zh) * 2022-04-18 2022-08-16 杭州崎枳环保科技有限公司 一种环保的灌粉机

Also Published As

Publication number Publication date
DE59702501D1 (de) 2000-11-23
EP0900164B1 (fr) 2000-10-18
CH690573A5 (de) 2000-10-31
EP0900164A1 (fr) 1999-03-10

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