WO1997038904A1 - Process and device for avoiding product dust or product gas emission when decanting with solid or liquid dosage systems - Google Patents
Process and device for avoiding product dust or product gas emission when decanting with solid or liquid dosage systems Download PDFInfo
- 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
Links
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
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59702501T DE59702501D1 (en) | 1996-04-16 | 1997-04-15 | METHOD AND DEVICE FOR AVOIDING PRODUCT DUST OR PRODUCT GAS LEAKING IN FILLING WITH SOLID OR LIQUID DOSING SYSTEMS |
EP97915249A EP0900164B1 (en) | 1996-04-16 | 1997-04-15 | Process and device for avoiding product dust or product gas emission when decanting with solid or liquid dosage systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH96396A CH690573A5 (en) | 1996-04-16 | 1996-04-16 | Method and apparatus for avoiding Produktestaub- or gas outlet products at filling with solid or Flüssigkeitsdosiersystemen. |
CH963/96 | 1996-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997038904A1 true WO1997038904A1 (en) | 1997-10-23 |
Family
ID=4199269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1997/000149 WO1997038904A1 (en) | 1996-04-16 | 1997-04-15 | Process and device for avoiding product dust or product gas emission when decanting with solid or liquid dosage systems |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0900164B1 (en) |
CH (1) | CH690573A5 (en) |
DE (1) | DE59702501D1 (en) |
WO (1) | WO1997038904A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1072509A1 (en) * | 1999-07-26 | 2001-01-31 | Neuhäuser GmbH, Umwelt-, Dosier- und Transporttechnologie | Device for gastight sealing |
FR2798360A1 (en) * | 1999-09-14 | 2001-03-16 | Cogema | DEVICE FOR THE CONTROLLED ADMISSION OF A HARMFUL POWDER INTO A BOX |
WO2002070347A1 (en) * | 2001-03-05 | 2002-09-12 | Windmöller & Hölscher Kg | Device for bagging bulk material |
KR101830115B1 (en) * | 2016-04-22 | 2018-02-22 | 이대엽 | Dual dust collecting device capable of packing the powder bag fill up chute |
CN114506480A (en) * | 2022-04-18 | 2022-05-17 | 杭州崎枳环保科技有限公司 | Powder filling machine of environmental protection |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105691654B (en) * | 2014-11-28 | 2020-05-05 | 重庆七彩虹化工有限公司 | Dust-removing and bagging device for powder coating |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2495102A1 (en) * | 1980-11-28 | 1982-06-04 | Generale Engrais Sa | METHOD AND DEVICE FOR FILLING SOFT PACKAGES SUCH AS BAGS |
US5316056A (en) * | 1991-03-14 | 1994-05-31 | L. E. Stott Limited | Powder dispensing apparatus |
DE4406605A1 (en) * | 1994-03-01 | 1995-09-07 | Bosch Gmbh Robert | Flow pack machine with a device for keeping the inside of a film tube free of dust in its sealing area |
-
1996
- 1996-04-16 CH CH96396A patent/CH690573A5/en not_active IP Right Cessation
-
1997
- 1997-04-15 DE DE59702501T patent/DE59702501D1/en not_active Expired - Lifetime
- 1997-04-15 WO PCT/CH1997/000149 patent/WO1997038904A1/en active IP Right Grant
- 1997-04-15 EP EP97915249A patent/EP0900164B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2495102A1 (en) * | 1980-11-28 | 1982-06-04 | Generale Engrais Sa | METHOD AND DEVICE FOR FILLING SOFT PACKAGES SUCH AS BAGS |
US5316056A (en) * | 1991-03-14 | 1994-05-31 | L. E. Stott Limited | Powder dispensing apparatus |
DE4406605A1 (en) * | 1994-03-01 | 1995-09-07 | Bosch Gmbh Robert | Flow pack machine with a device for keeping the inside of a film tube free of dust in its sealing area |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1072509A1 (en) * | 1999-07-26 | 2001-01-31 | Neuhäuser GmbH, Umwelt-, Dosier- und Transporttechnologie | Device for gastight sealing |
FR2798360A1 (en) * | 1999-09-14 | 2001-03-16 | Cogema | DEVICE FOR THE CONTROLLED ADMISSION OF A HARMFUL POWDER INTO A BOX |
EP1084953A1 (en) * | 1999-09-14 | 2001-03-21 | Compagnie Generale Des Matieres Nucleaires | Device for controlled inlet of a noxious powder in a container |
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 (en) * | 2001-03-05 | 2002-09-12 | Windmöller & Hölscher Kg | Device for bagging bulk material |
US6868876B2 (en) | 2001-03-05 | 2005-03-22 | Windmoeller & Hoelscher Kg | Device for bagging bulk material |
KR101830115B1 (en) * | 2016-04-22 | 2018-02-22 | 이대엽 | Dual dust collecting device capable of packing the powder bag fill up chute |
CN114506480A (en) * | 2022-04-18 | 2022-05-17 | 杭州崎枳环保科技有限公司 | Powder filling machine of environmental protection |
CN114506480B (en) * | 2022-04-18 | 2022-08-16 | 杭州崎枳环保科技有限公司 | Powder filling machine of environmental protection |
Also Published As
Publication number | Publication date |
---|---|
CH690573A5 (en) | 2000-10-31 |
EP0900164B1 (en) | 2000-10-18 |
EP0900164A1 (en) | 1999-03-10 |
DE59702501D1 (en) | 2000-11-23 |
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