EP0673859A2 - Dispositif de dosage - Google Patents

Dispositif de dosage Download PDF

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Publication number
EP0673859A2
EP0673859A2 EP95104381A EP95104381A EP0673859A2 EP 0673859 A2 EP0673859 A2 EP 0673859A2 EP 95104381 A EP95104381 A EP 95104381A EP 95104381 A EP95104381 A EP 95104381A EP 0673859 A2 EP0673859 A2 EP 0673859A2
Authority
EP
European Patent Office
Prior art keywords
container
outlet
dosing
metering
cone
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.)
Withdrawn
Application number
EP95104381A
Other languages
German (de)
English (en)
Other versions
EP0673859A3 (fr
Inventor
Frank Kolodziej
Mathias Stegner
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.)
SCHUETTGUTTECHNIK FREITAL GMBH
Original Assignee
Kbi Klockner-Becorit Industrietechnik 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 Kbi Klockner-Becorit Industrietechnik GmbH filed Critical Kbi Klockner-Becorit Industrietechnik GmbH
Publication of EP0673859A2 publication Critical patent/EP0673859A2/fr
Publication of EP0673859A3 publication Critical patent/EP0673859A3/fr
Withdrawn legal-status Critical Current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 dosing device for bulk material discharge from a container, with a vertically movable dosing body arranged in a container outlet, which is connected via a lifting rod to a stroke drive which can be controlled in terms of its stroke frequency and / or lifting height, whereby between the circumference of the dosing body and the inner wall of the an annular gap, which changes during the metering stroke, is formed at the bottom of the container outlet.
  • Dosing devices of this type are used to discharge bulk material in a metered quantity from a container, for example for loading a pneumatic conveyor system.
  • the stroke control of the dosing body is preferably carried out as a function of the pressure in the delivery line, as a result of which the pneumatic delivery system is optimally fed to the respective delivery conditions. It is important here that the actually occurring flow of conveyed goods depends reliably on the control variables, namely the stroke frequency and / or the stroke height of the periodically moving dosing body.
  • a cone is arranged with the tip upwards in the container.
  • the bottom of the container is provided with several openings, to which filling channels connect.
  • the metering body In known metering devices of the type mentioned at the beginning (DE-PS 25 33 070, EP 0 201 777 A2), the metering body is designed as a closed, truncated cone-shaped body.
  • the bulk material flows only through the annular outlet gap formed between the circumference of the dosing body and the inner edge of the container outlet, the width of which is continuously changed during the stroke movement of the dosing body.
  • the dosing accuracy that can be achieved depends on the flow rate of the bulk material in the outlet gap. However, this flow rate can only be partially influenced by controlling the stroke movement of the metering body.
  • the object of the invention is therefore to design a metering device of the type mentioned in such a way that there is a greater dependence of the flow rate of the bulk material on the control variables of the metering body stroke, so that there is an increased direct influence of the controlled metering body movements on the flow rate and thus on the metered quantity .
  • the dosing body in its surface facing the interior of the container has at least one inlet opening, which is connected via a channel to a central outlet opening on the underside of the dosing body, and that under the outlet opening an upwardly tapering cone is mounted centrally in the container outlet.
  • in the surface of the dosing body facing the interior of the container there are three inlet openings which are evenly distributed over the circumference and which are connected to the common outlet opening via merging channels.
  • This arrangement of the inlet openings ensures that the bulk material is withdrawn evenly from a relatively large cross-sectional area of the container, so that there is no risk of bridging even with difficult bulk material and small dosing quantities and thus low lifting heights of the dosing body.
  • the metering device shown in FIG. 1 is arranged in the lower region of a closed container 1, only partially shown, which holds the bulk material to be metered.
  • the bulk material emerging from the container outlet 2 enters a pipeline 3 and is conveyed away, for example, by a pneumatic delivery line (not shown).
  • a vertically movable metering body 4 is arranged in the container outlet 2.
  • the dosing body 4 is connected via a lifting rod 5 to a lifting drive 6 on the top of the container 1, for example a pneumatically driven cylinder controlled by a control device 7.
  • the stroke drive 6 drives the metering body 4 to continuous stroke movements, the stroke frequency and / or stroke height of which are controlled by the volume flow of the from the container Dosing 1 emerging bulk goods.
  • the stroke frequency and / or stroke height can be controlled, for example, as a function of the pressure measured in the connected pneumatic delivery line.
  • annular outlet gap 10 is formed, the width of which continuously changes with each metering body stroke. As indicated by arrows 11, a flow of the conveyed material flows through this outlet gap 10.
  • the metering body 4 In its surface 13 facing the interior 12 of the container 1, which in the exemplary embodiment shown is a truncated cone surface tapering upwards, the metering body 4 has three approximately oval inlet openings 14 which are evenly distributed over the circumference. It can be seen from FIG. 2 that these inlet openings 14 extend approximately over 60-80% of the circumference.
  • the three inlet openings 14 are connected via merging channels 15 to a common, central outlet opening 16 on the underside 17 of the metering body 4.
  • an upwardly tapering counter cone 18 is attached in the container outlet 2.
  • the counter cone 18 is connected via a threaded pin 19 to a cross bar 20 which is fastened at both ends in the container outlet 2.
  • the counter cone 18 can be adjusted in height by means of the threaded pin 19.
  • the counter cone 19 can be adjusted in the axial direction in such a way that it completely closes the outlet opening 16 on the metering body 4 when the metering body 4 also has the circumference 8 of the inner wall 9 of the metering body 4 Touches container outlet 2, so that a complete closure of the container is ensured in this position.
  • a second, also circular outlet gap 22 is formed, through which a flow of bulk material indicated by arrows 23 flows.
  • the cone angle of the truncated cone surface 13 of the dosing body 4 is approximately the same size as the cone angle of the adjacent inner walls 9 of the container, i.e. both cone angles have approximately the same size, but opposite signs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
EP95104381A 1994-03-26 1995-03-24 Dispositif de dosage. Withdrawn EP0673859A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4410568 1994-03-26
DE19944410568 DE4410568C1 (de) 1994-03-26 1994-03-26 Dosiervorrichtung

Publications (2)

Publication Number Publication Date
EP0673859A2 true EP0673859A2 (fr) 1995-09-27
EP0673859A3 EP0673859A3 (fr) 1997-02-12

Family

ID=6513949

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95104381A Withdrawn EP0673859A3 (fr) 1994-03-26 1995-03-24 Dispositif de dosage.

Country Status (2)

Country Link
EP (1) EP0673859A3 (fr)
DE (1) DE4410568C1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6131774A (en) * 1998-04-08 2000-10-17 Ecolab Inc. Flowable material dispenser with automatic shutoff and vessel for receiving flowable material
DE19817693C2 (de) * 1998-04-21 2002-03-14 Schuettguttechnik Freital Gmbh Verschluß und Dosiervorrichtung für den Schüttgutaustrag aus einem Druckbehälter
CN103318571A (zh) * 2013-07-17 2013-09-25 佳施加德士(苏州)塑料有限公司 一种粉体下料漏斗

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH441093A (de) * 1966-07-14 1967-07-31 Meynadier & Cie Ag Vorrichtung zum dosierten Austragen von schüttfähigem Gut
DE2913758A1 (de) * 1979-04-05 1980-10-16 Lonza Werke Gmbh Verfahren und vorrichtung zum auflockern von schuettgut waehrend dessen entnahme aus behaeltern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE900795C (de) * 1949-10-25 1954-01-04 Jagenberg Werke Ag Abfuellmaschine fuer pulverfoermiges oder koerniges Gut
DE7437248U (de) * 1974-11-08 1977-08-04 Haver & Boecker, 4740 Oelde Foerderrinnen mit angebauten schwingantrieben
DE2533070C3 (de) * 1975-07-24 1980-04-30 Sietam Gesellschaft Fuer Foerdertechnik Und Apparatebau Mbh, 6806 Viernheim Verfahren zur dosierten Abgabe von Schüttgut
DE3515379A1 (de) * 1985-04-27 1986-11-06 KBI Klöckner-Becorit Industrietechnik GmbH, 4224 Hünxe Vorrichtung zum schuettgutaustrag aus einem behaelter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH441093A (de) * 1966-07-14 1967-07-31 Meynadier & Cie Ag Vorrichtung zum dosierten Austragen von schüttfähigem Gut
DE2913758A1 (de) * 1979-04-05 1980-10-16 Lonza Werke Gmbh Verfahren und vorrichtung zum auflockern von schuettgut waehrend dessen entnahme aus behaeltern

Also Published As

Publication number Publication date
DE4410568C1 (de) 1995-08-03
EP0673859A3 (fr) 1997-02-12

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