EP0476249A1 - Dispositif et procédé pour transporter et mélanger du matériau en vrac - Google Patents

Dispositif et procédé pour transporter et mélanger du matériau en vrac Download PDF

Info

Publication number
EP0476249A1
EP0476249A1 EP91111230A EP91111230A EP0476249A1 EP 0476249 A1 EP0476249 A1 EP 0476249A1 EP 91111230 A EP91111230 A EP 91111230A EP 91111230 A EP91111230 A EP 91111230A EP 0476249 A1 EP0476249 A1 EP 0476249A1
Authority
EP
European Patent Office
Prior art keywords
container
conveying
bulk material
valve
bulk
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.)
Granted
Application number
EP91111230A
Other languages
German (de)
English (en)
Other versions
EP0476249B1 (fr
Inventor
Otto Brandauer
Klaus Grassl
Alfred Kosnopfl
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.)
Mann and Hummel GmbH
Original Assignee
Filterwerk Mann and Hummel 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 Filterwerk Mann and Hummel GmbH filed Critical Filterwerk Mann and Hummel GmbH
Publication of EP0476249A1 publication Critical patent/EP0476249A1/fr
Application granted granted Critical
Publication of EP0476249B1 publication Critical patent/EP0476249B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/405—Mixers using gas or liquid agitation, e.g. with air supply tubes in receptacles having guiding conduits therein, e.g. for feeding the gas to the bottom of the receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/718—Feed mechanisms characterised by the means for feeding the components to the mixer using vacuum, under pressure in a closed receptacle or circuit system

Definitions

  • the invention relates to a method and a device for conveying and mixing bulk material, in particular plastic granulate.
  • a mixer for bulk material which has a silo-like container with a funnel-shaped bottom and at least one riser is provided within the container, via which the bulk material can be conveyed pneumatically from the bottom area back into the upper part of the container is.
  • a cellular wheel sluice is also provided at the outlet of the container, which conveys the bulk material to the lower opening of the riser pipe.
  • this mixer requires a high level of mechanical components; in particular the rotary valve which rotates in the bulk material is complex and also subject to wear. In addition, the material must be discharged via the rotary valve, which means that the mixer cannot be emptied quickly.
  • the invention has for its object to avoid the disadvantages mentioned and to provide a method and a device for conveying and mixing bulk material, which is characterized by a simple structure and which at the same time ensures reliable mixing of the bulk material.
  • the basic idea and thus an essential advantage of the invention is the combination of the promotion of the bulk material in the salaries with the simultaneous mixing of the bulk material conveyed into the container. Due to this simultaneous mixing, several types of bulk material can be fed to the container in succession via the conveyor pipe system.
  • the mixing of the bulk material is achieved in that the material introduction nozzle is designed in such a way that its end extends into the immediate vicinity of the bottom of the container.
  • the suction conveyor fan causes the material to deflect as soon as it has left this material inlet nozzle and rises in the container.
  • the newly entering material mixes very intensively with the material already present in the container, without the need for additional structural elements in the container, such as guide vanes or mixer devices.
  • this metering can take place via a time control of the delivery valves.
  • Such a time control works very reliably without great effort and is suitable for conveying materials which have approximately the same physical properties.
  • Another possibility of dosing is that the container is arranged on a load cell.
  • the gravimetric detection of the conveyed material takes place via this load cell, so that there is the possibility of making a very precise determination of the conveyed material weight.
  • the facility for carrying out the procedure rens is particularly simple.
  • the container is equipped with an automatically closing bottom flap, which is controlled by the negative pressure in the container.
  • a filter element in the manner of a pocket filter is arranged inside the container and can be cleaned if necessary.
  • the conveyor pipe system is directly connected to all of the conveyor pipes at the material inlet connection, the end of which is positioned in the container in the manner according to the invention.
  • this device provides that a two-way valve is provided at the outlet of the container. Using this two-way valve, the bulk material can either be fed directly into the machine hopper or fed into a collecting container. This collection container is used to remove residual material from the container and to separate a mixture that does not meet the specified tolerance range.
  • a metal detector can be connected upstream of the two-way valve. This has the advantage that any metal particles present in the bulk material are recognized and these metal particles also get into the collecting container by controlling the two-way valve.
  • the conveying and mixing device consists of a container 10 which tapers conically downwards and has a bottom closure flap 11 at its lower end, which opens automatically when the conveying air is switched off.
  • a filter element 12 is arranged inside the container and filters the conveying air sucked upwards out of the container.
  • the conveying air of the suction conveyor is generated by a suction conveyor fan 13, which is provided with a motor 14.
  • the conveying air is controlled via a valve 15 which is arranged in the conveying air line 16.
  • a material introduction nozzle 17 is inserted, the outlet end 18 of which extends right up to the vicinity of the bottom closure flap 11.
  • An additional air valve 24 is also connected to the delivery pipe system via a pipe 23. Ambient air can be sucked into the conveyor pipe system via this additional air valve.
  • a conveying and mixing process is as follows.
  • the suction conveying fan 13 is switched on, the valve 15 is opened. This creates a negative pressure in the container 10.
  • the bottom closure flap 11 remains closed.
  • the bulk material 25 flowing in via the material inlet connection 17 flows upward and fills the container.
  • the corresponding delivery valve is closed, the auxiliary air valve 24 is opened in the meantime, and then the delivery valve for the second type of bulk material is opened.
  • this material flows into the container via the material inlet connection, rises there and mixes with the first material.
  • the material located particularly in the area of the container wall moves downward, but is again introduced into this upward flow there, so that a good mixing of the two materials is ensured.
  • the corresponding delivery valve is switched off and the additional air valve is opened.
  • the additional air now flowing in has the effect that all the pipes downstream of the delivery valves 21, 22 are sucked empty. In addition, this additional air causes a further mixing of the materials 25 in the container 10.
  • FIG. 2 shows a conveying and mixing device in which the container 10 is arranged on a load cell 26.
  • This weighing cell 26 enables gravimetric detection of the bulk materials flowing into the container, so that an exact determination of the mixing ratio of the bulk materials can thus be carried out.
  • a machine hopper 27 is shown, which is arranged directly on an injection molding machine when using the conveying and mixing device in the plastics processing industry, so that the material mixed in the container 10 (plastic granulate) can be fed directly to the machine. If the addition of very small amounts of material is required, for example se the addition of color pigments, it is advisable to connect an additional metering device (28) to the conveying and mixing device to maintain the exact mixing ratio.
  • Such an additional metering device 28 consists of a container 29, which has a screw dosing device or the like at its outlet, the metered amount being fed to a downstream weighing container 30, which is also attached to a weighing cell 31.
  • the material provided by this metering device reaches the common conveying system via the conveying line 32 and the conveying valve 33.
  • a two-way valve 34 can be arranged below the container 10.
  • This two-way valve has the task of separating out material which flows out of the container 10 and is not intended to get into the machine funnel 27.
  • This material is fed via line 35 to a collecting container 36.
  • the valve can be operated via a suitable control device.
  • the valve is also actuated by means of a metal detector 37. This is arranged above the valve and, when a metal particle is sensed within the bulk material flow, switches this valve over, so that the part of the bulk material flow in which the metal particle is located also the collecting container 36 is fed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
  • Processing Of Solid Wastes (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
EP91111230A 1990-09-21 1991-07-05 Dispositif et procédé pour transporter et mélanger du matériau en vrac Expired - Lifetime EP0476249B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4029902A DE4029902C2 (de) 1990-09-21 1990-09-21 Verfahren zum Fördern und Mischen von Schüttgut
DE4029902 1990-09-21

Publications (2)

Publication Number Publication Date
EP0476249A1 true EP0476249A1 (fr) 1992-03-25
EP0476249B1 EP0476249B1 (fr) 1994-10-12

Family

ID=6414677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111230A Expired - Lifetime EP0476249B1 (fr) 1990-09-21 1991-07-05 Dispositif et procédé pour transporter et mélanger du matériau en vrac

Country Status (3)

Country Link
EP (1) EP0476249B1 (fr)
AT (1) ATE112699T1 (fr)
DE (2) DE4029902C2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997184A1 (fr) * 1998-10-02 2000-05-03 Mann + Hummel ProTec GmbH Dispositif pour transporter et mélanger du matériau en vrac
US7846399B2 (en) * 2004-03-23 2010-12-07 W.R. Grace & Co.-Conn. System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit
US8926907B2 (en) 2004-03-23 2015-01-06 W. R. Grace & Co.-Conn System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit
US9504975B2 (en) 2004-03-23 2016-11-29 W. R. Grace & Co.-Conn. System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit
US9637325B2 (en) 2011-10-18 2017-05-02 W. R. Grace & Co.-Conn. Systems for injecting catalysts and/or additives into a fluidized catalytic cracking unit and methods of making and using the same
CN111013468A (zh) * 2020-03-02 2020-04-17 河北工业大学 一种沸腾式混料机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19639856C2 (de) * 1996-09-27 2001-03-15 Gert Streicher Verfahren und Vorrichtung zum Fördern von Feinstoffen als Zuschlag in körnigen Produkten
DE102007046622A1 (de) 2007-09-27 2009-04-02 Mann + Hummel Protec Gmbh Einrichtung zum Fördern und Mischen von Schüttgut
DE102009015271B4 (de) 2009-04-01 2014-04-03 Protec Polymer Processing Gmbh Bearbeitungseinrichtung für Schüttgut
DE102012208717A1 (de) * 2012-05-24 2013-11-28 Coperion Gmbh Behandlungsvorrichtung sowie Behandlungsanlage für Schüttgut
CN108993287A (zh) * 2018-07-20 2018-12-14 成都恩承科技股份有限公司 气动溶药装置及溶药方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1368649A (fr) * 1962-11-06 1964-07-31 Procédé de mélange et dispositif pour sa mise en oeuvre
FR1460098A (fr) * 1965-10-14 1966-11-25 Appareil perfectionné de brassage pneumatique
GB1249827A (en) * 1969-08-21 1971-10-13 Simon Ltd Henry Improvements in or relating to mixing solids with liquids
US3707829A (en) * 1970-10-21 1973-01-02 Eastman Kodak Co Apparatus for injecting dry solid particles into a liquid including noise muffling means
US3819157A (en) * 1973-02-01 1974-06-25 Universal Oil Prod Co Mixing apparatus
EP0103894A1 (fr) * 1982-09-21 1984-03-28 Herbert Hüttlin Dispositif à lit fluidifié

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1506960A1 (de) * 1967-04-20 1969-07-10 Miag Muehlenbau & Ind Gmbh Abscheide- und Entnahmegefaess fuer pneumatisch gefoerdertes Schuettgut
DE2026337A1 (en) * 1970-05-29 1971-12-09 Fa Franz Josef Waschle, 7980 Ra vensburg Pneumatic mixing appts. - placed above helical screw feed of plastics extruder
DE2422963B1 (de) * 1974-05-11 1975-06-12 Dietrich Reimelt Kg, 6074 Urberach Pneumatische Misch- und Abförderanlage für (ließfähige Schüttgüter
DE2544441A1 (de) * 1975-10-04 1977-04-14 Motan Gmbh Vorrichtung zum mischen von granulatund/oder pulverfoermigen stoffen
DE2544716A1 (de) * 1975-10-07 1977-04-21 Zimmermann Azo Maschf Saugfoerderanlage
DE2618541B2 (de) * 1976-04-28 1980-08-14 Azo-Maschinenfabrik Adolf Zimmermann Gmbh, 6960 Osterburken Filterabscheider für eine pneumatische Schüttgut-Förderanlage
US4441822A (en) * 1980-09-03 1984-04-10 Foster Wheeler Energy Corporation Apparatus for mixing and distributing solid particulate material
JPS57171429A (en) * 1981-04-13 1982-10-22 Glatt Gmbh Rotary disk type granulator
DE3620749A1 (de) * 1986-06-20 1987-12-23 Waeschle Maschf Gmbh Umwaelzmischer fuer schuettgut

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1368649A (fr) * 1962-11-06 1964-07-31 Procédé de mélange et dispositif pour sa mise en oeuvre
FR1460098A (fr) * 1965-10-14 1966-11-25 Appareil perfectionné de brassage pneumatique
GB1249827A (en) * 1969-08-21 1971-10-13 Simon Ltd Henry Improvements in or relating to mixing solids with liquids
US3707829A (en) * 1970-10-21 1973-01-02 Eastman Kodak Co Apparatus for injecting dry solid particles into a liquid including noise muffling means
US3819157A (en) * 1973-02-01 1974-06-25 Universal Oil Prod Co Mixing apparatus
EP0103894A1 (fr) * 1982-09-21 1984-03-28 Herbert Hüttlin Dispositif à lit fluidifié

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 301 (C-316)(2024) 28. November 1985 & JP-A-60 139 327 ( HOURAI ) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997184A1 (fr) * 1998-10-02 2000-05-03 Mann + Hummel ProTec GmbH Dispositif pour transporter et mélanger du matériau en vrac
US7846399B2 (en) * 2004-03-23 2010-12-07 W.R. Grace & Co.-Conn. System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit
US8012422B2 (en) 2004-03-23 2011-09-06 W. R. Grace & Co.-Conn. System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit
US8926907B2 (en) 2004-03-23 2015-01-06 W. R. Grace & Co.-Conn System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit
US8967919B2 (en) 2004-03-23 2015-03-03 W. R. Grace & Co.-Conn. System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit
US9315738B2 (en) 2004-03-23 2016-04-19 W. R. Grace & Co.-Conn. System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit
US9504975B2 (en) 2004-03-23 2016-11-29 W. R. Grace & Co.-Conn. System and process for injecting catalyst and/or additives into a fluidized catalytic cracking unit
US9637325B2 (en) 2011-10-18 2017-05-02 W. R. Grace & Co.-Conn. Systems for injecting catalysts and/or additives into a fluidized catalytic cracking unit and methods of making and using the same
CN111013468A (zh) * 2020-03-02 2020-04-17 河北工业大学 一种沸腾式混料机

Also Published As

Publication number Publication date
EP0476249B1 (fr) 1994-10-12
DE59103219D1 (de) 1994-11-17
DE4029902A1 (de) 1992-03-26
ATE112699T1 (de) 1994-10-15
DE4029902C2 (de) 1996-10-17

Similar Documents

Publication Publication Date Title
DE3837608C2 (fr)
DE3344456C2 (de) Verfahren und Vorrichtung zum Erstellen eines Korngemischs
EP1036750B1 (fr) Dispositif de transport des granulés en matière plastique
DE3720456A1 (de) Vorrichtung zum foerdern von teilchenfoermigem material
EP0476249B1 (fr) Dispositif et procédé pour transporter et mélanger du matériau en vrac
DE3924566C2 (fr)
EP0468399B1 (fr) Dispositif pour le dosage et/ou le mélange continu, pneumatique gravimetrique de marchandises en vrac
EP0899079B1 (fr) Procédé pour l'alimentation de granules plastiques dans l'orifice d'entrée d'une extrudeuse et dispositif correspondant
DE3834191C2 (fr)
DE2907011C2 (de) Vorrichtung zum Befüllen eines Sackes
EP3156140A1 (fr) Dispositif et procédé de dosage déstiné a recevoir et distribuer des produits en vrac
EP0997184A1 (fr) Dispositif pour transporter et mélanger du matériau en vrac
DE2819726A1 (de) Schwerkraftmischer fuer pulverfoermiges bis koerniges gut
DE2136328B2 (de) Vorrichtung zum Beschicken mehrerer Abnahmestellen mit aus Vorratsbehältern pneumatisch gefördertem Schüttgut
DE19528636A1 (de) Einrichtung zum Fördern und Dosieren von Schüttgut
DE19743481B4 (de) Vorrichtung zum Fördern und Mischen von Schüttgut sowie Anwendung der Vorrichtung
EP1646494A2 (fr) Procede et installation pour recevoir et traiter automatiquement des grappes
DE3123904A1 (de) "fuetteranlage"
EP1080864B1 (fr) Dispositif pour l'alimentation de matière en vrac
EP0519114B1 (fr) Procédé et dispositif de préparation et de distribution à des auges d'aliment semi-liquide pour animaux
EP0599047B1 (fr) Procédé pour déterminer le débit de matière retirée par une extrudeuse d'une trémie d'alimentation
DE1782327C3 (fr)
DE4319014A1 (de) Zyklonabscheider
DE3327461A1 (de) Abscheider fuer pneumatisch gefoerdertes schuettgut
DE2849261C2 (de) Verfahren und Einrichtung zum Sprühbeschichten von Gegenständen mit Pulver

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19920804

17Q First examination report despatched

Effective date: 19931115

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19941012

Ref country code: NL

Effective date: 19941012

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19941012

Ref country code: GB

Effective date: 19941012

Ref country code: BE

Effective date: 19941012

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19941012

Ref country code: DK

Effective date: 19941012

Ref country code: FR

Effective date: 19941012

REF Corresponds to:

Ref document number: 112699

Country of ref document: AT

Date of ref document: 19941015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59103219

Country of ref document: DE

Date of ref document: 19941117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950112

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19941012

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19950705

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19950731

Ref country code: CH

Effective date: 19950731

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960402