EP0486933A2 - Dispositif pour la dissolution de matières solides en vrac dans un liquide - Google Patents

Dispositif pour la dissolution de matières solides en vrac dans un liquide Download PDF

Info

Publication number
EP0486933A2
EP0486933A2 EP91119336A EP91119336A EP0486933A2 EP 0486933 A2 EP0486933 A2 EP 0486933A2 EP 91119336 A EP91119336 A EP 91119336A EP 91119336 A EP91119336 A EP 91119336A EP 0486933 A2 EP0486933 A2 EP 0486933A2
Authority
EP
European Patent Office
Prior art keywords
liquid
line
container
sugar
circulating
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
EP91119336A
Other languages
German (de)
English (en)
Other versions
EP0486933A3 (fr
EP0486933B1 (fr
Inventor
Angelo Cadeo
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.)
Tetra Pak Processing Equipment AG
Original Assignee
Miteco AG
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 Miteco AG filed Critical Miteco AG
Publication of EP0486933A2 publication Critical patent/EP0486933A2/fr
Publication of EP0486933A3 publication Critical patent/EP0486933A3/fr
Application granted granted Critical
Publication of EP0486933B1 publication Critical patent/EP0486933B1/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
    • B01F21/00—Dissolving
    • B01F21/20—Dissolving using flow mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/25—Mixing by jets impinging against collision plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
    • 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
    • B01F33/404—Mixers using gas or liquid agitation, e.g. with air supply tubes for mixing material moving continuously therethrough, e.g. using impinging jets

Definitions

  • the invention relates to a device for dissolving bulk solids in a liquid, a liquid in a container circulating, with a first supply line for the bulk solids, a second supply line for the liquid and with a circulating line for the circulating liquid, wherein these lines open into the container, with an outlet nozzle located in the container, to which a baffle plate faces.
  • the device is particularly intended for large-area solvents (large-scale mixers) in which the bulk solids are present, for example, as sugar, which is to be dissolved, for example, in water.
  • large-volume solver the container is charged in batches, water being placed in the container up to about a third of the height, whereupon the sugar is blown in with air during a specific loading time.
  • the loading time can extend, for example, over an hour, with large amounts of conveying air of, for example, 480 Nm3 / h to 800 Nm3 / h being introduced into the container. This conveying air must of course be routed away from the container.
  • the aim is to create a device in which no cyclone separator and no downstream filter is necessary and the conveying air can nevertheless be released into the atmosphere without dust.
  • the device according to the invention is characterized in that the first feed line and the circulation line are brought together to form an outlet section which carries the outlet nozzle, so that the flows from the first feed line and the circulation line emerge at the outlet nozzle and hit the baffle plate.
  • the large-volume solvent shown in FIG. 1 has a container 1, a first feed line 2 for the bulk solids and a second feed line 3 for a liquid supply.
  • the two supply lines 2 and 3 open into the container 1.
  • the device also has a circulation line 6 for the circulating liquid.
  • This circulation line 6 comprises a suction section 6 'and a pressure section 6 ⁇ .
  • the exhaust air line 8 is located at the top of the container. The dust-free conveying air should flow out of this, without the need for a cyclone separator and a filter.
  • the circulation line 6 has an L-shaped elbow 9 in the interior of the container 1 and the first feed line 2 opens into the circulation line 6 in the region of the elbow 9.
  • the first feed line 2 has an enlarged nozzle 10 at its mouth.
  • the line section between the expanded nozzle 10 and the outlet nozzle 4 designed as a compression nozzle is to be referred to as the outlet section 11 of the circulation line 6.
  • the circulation line 6 with its pressure section 6 ⁇ , the manifold 9 and the outlet section 11 forms together with the first feed line 2 and its nozzle 10 a jet pump, which is designed in the present case as a liquid jet solid suction device. If sugar is to be dissolved in water, then this jet pump is a water jet sugar sucker. A small negative pressure then occurs at the nozzle 10 due to the circulating liquid.
  • the outlet nozzle 4 the currents emerge from the first feed line 2 and the circulation line 6 and hit the baffle plate 5.
  • the circulation line 6 has the outlet section 11 and the first feed line 2 opens into the circulation line 6.
  • the first feed line 2 it would also be possible for the first feed line 2 to have the outlet section and the circulation line into the first feed line 2 flows into.
  • the interior of the container 1 is provided with a marking 12 for a minimum liquid level 13.
  • the outlet point (nozzle 10) of the first feed line 2 into the circulation line 6 is lower than the marking 12, so that the sugar conveyed by means of an air stream is always introduced into the liquid.
  • the container 1 is charged with the liquid (water) and the bulk solids (Sugar) loaded.
  • the valve 14 is closed.
  • the system is a so-called large-scale solver.
  • the structure of the system shown in FIG. 1 could also be part of a continuously operating system, so that the container 1 would then usually be referred to as a suspension container, and in addition to this container 1 there would also be a release chamber (not shown).
  • the water and sugar are then no longer fed in batches, but the sugar and water are continuously fed to the system and the end product is also continuously removed from the system.
  • the device according to the invention is primarily of interest for the large-area solvent mentioned, since the sugar is conveyed into the interior of the container 1 with large amounts of air.
  • baffle plate 5 by means of a rod 16 over a e.g. three-pointed, star-shaped holder 17 is held in the outlet section 11.
  • a pump 18 and a shut-off valve 19 are located in the circulation line 6.
  • a line 20 leads away from the circulation line 6, via which the finished sugar solution is led away from the container 1.
  • a shut-off valve 21 is located in line 20.
  • baffle plate 5 which is known per se.
  • the jet emerging from the nozzle 4 strikes the baffle plate 5 essentially at right angles, so that the aforementioned jet (axial jet) is then deflected into a star-shaped radial jet.
  • this baffle plate is already used to generate the radial jet, with the circulating liquid again and again hits this baffle plate 5.
  • This baffle plate creates a particularly strong turbulent flow in the circulating medium.
  • the pump 18 the circulating medium (liquid with solids dissolved therein) is sucked in via the suction section 6 'and guided back to the baffle plate 5 via the pressure section 6'.
  • the sugar supply line 2 (with the valve 14 open) is now introduced into the circulation line 6.
  • the nozzle 10 of the line 2 together with the outlet section 11, forms a jet pump, a large turbulent flow occurring in the outlet section 11 and the circulating liquid being very strongly mixed with the sugar supplied via the line 2.
  • the solid due to the great turbulence, the solid (sugar and sugar dust) is bound intensively and thus quickly by the liquid.
  • This flow medium (liquid + solids + sugar solution + air) passes through the compression nozzle 4, in which its speed increases is on the baffle plate 5.
  • the aforementioned thorough mixing and intensive binding of the solid to the liquid occurs, but in addition a very special advantageous effect now occurs.
  • the aforementioned large amount of air is divided into many small air bubbles by the baffle plate 5. These many small air bubbles slowly come to the liquid surface 13 due to their lower buoyancy. These many small air bubbles can only contain insignificant sugar dust, which can easily be bound to the liquid when rising in the liquid, so that the total amount of air is distributed through the smallest air bubbles sugar-free enters the gas space 22 and therefore a sugar-free conveying air can also be discharged via the line 8.
  • the advantage lies in the division of the large amount of air into innumerable smallest air bubbles, which can only contain insignificant sugar dust, as well as in the increased contact time achieved by the smallest bubbles when the smallest air bubbles rise slowly, so that these two effects result in a sugar-free removal the conveying air from the container 1 is reached.
  • the procedure for working with the device according to the invention is as follows. First, with the valve 15 open, a batch of a certain amount of water is fed to the container 1 via the line 3 (for example 1/3 of the height of the container). Then the valve 15 is closed. The valve 21 was already closed before the filling process. Now a certain amount of sugar is fed in batches, for example from a truck with the valve 14 open, via line 2 to the container 1, the aforementioned large amount of air at a speed, for example in the range of 15-20 m / s, for example the sugar into the liquid for one hour introduces.
  • the pump 18 is switched on and when the valve 19 is open, the liquid 23, which has the minimum level 13, for example, is shown in FIG Circulated (circulated) way over the circulation line 6.
  • a negative pressure is generated at the mouth end of the line 2, so that the circulating liquid is prevented from entering the line 2, so that no liquid is conveyed to the truck from which the sugar is removed.
  • the many small air bubbles are generated in the manner described by the baffle plate 5, so that the entire amount of air comes into contact with the liquid through a substantially increased contact area and during a considerably longer contact time.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Paper (AREA)
EP91119336A 1990-11-19 1991-11-13 Dispositif pour la dissolution de matières solides en vrac dans un liquide Expired - Lifetime EP0486933B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3666/90 1990-11-19
CH3666/90A CH682460A5 (de) 1990-11-19 1990-11-19 Vorrichtung zum Lösen von Feststoff-Schüttgut in einer Flüssigkeit.

Publications (3)

Publication Number Publication Date
EP0486933A2 true EP0486933A2 (fr) 1992-05-27
EP0486933A3 EP0486933A3 (fr) 1992-06-03
EP0486933B1 EP0486933B1 (fr) 1995-03-15

Family

ID=4260899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91119336A Expired - Lifetime EP0486933B1 (fr) 1990-11-19 1991-11-13 Dispositif pour la dissolution de matières solides en vrac dans un liquide

Country Status (4)

Country Link
EP (1) EP0486933B1 (fr)
AT (1) ATE119804T1 (fr)
CH (1) CH682460A5 (fr)
DE (1) DE59104957D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0799573A1 (fr) * 1996-04-01 1997-10-08 Societe Des Produits Nestle S.A. Procédé et dispositif de dissolution d'une poudre dans un liquide
EP2594331A1 (fr) * 2008-03-05 2013-05-22 United Waters International AG Procédé et dispositif d'introduction de gaz dans des liquides
US10654008B2 (en) 2015-09-24 2020-05-19 Tetra Laval Holdings & Finance S.A. Baffle pipe segment, injector device and dissolving installation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR555142A (fr) * 1922-08-16 1923-06-25 Appareil pour assurer le contact intime entre un liquide dissolvant et un solide pulvérisé
GB2055050A (en) * 1979-06-22 1981-02-25 Burgert H Loop reactor
DE3341992A1 (de) * 1983-11-22 1985-05-30 Georg Dipl.-Ing. 5000 Köln Schreiber Mehrstufenkolonne
SU1368012A1 (ru) * 1986-07-02 1988-01-23 Предприятие П/Я А-3852 Устройство дл растворени порошкообразных материалов в жидкости
GB2195094A (en) * 1986-07-18 1988-03-30 Healplan Ltd Dry powder dosing
EP0408360A2 (fr) * 1989-07-12 1991-01-16 McDermott, Matthew Appareil pour la dissolution de matières solides particulaires en liquides

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR555142A (fr) * 1922-08-16 1923-06-25 Appareil pour assurer le contact intime entre un liquide dissolvant et un solide pulvérisé
GB2055050A (en) * 1979-06-22 1981-02-25 Burgert H Loop reactor
DE3341992A1 (de) * 1983-11-22 1985-05-30 Georg Dipl.-Ing. 5000 Köln Schreiber Mehrstufenkolonne
SU1368012A1 (ru) * 1986-07-02 1988-01-23 Предприятие П/Я А-3852 Устройство дл растворени порошкообразных материалов в жидкости
GB2195094A (en) * 1986-07-18 1988-03-30 Healplan Ltd Dry powder dosing
EP0408360A2 (fr) * 1989-07-12 1991-01-16 McDermott, Matthew Appareil pour la dissolution de matières solides particulaires en liquides

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET PATENTS ABSTRACTS Section Ch, Week 8831, 7. Juli 1988 Derwent Publications Ltd., London, GB; Class J, AN 88-219317/31 & SU-A-1 368 012 (PODDUBNYI BN) 23. Januar 1988 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0799573A1 (fr) * 1996-04-01 1997-10-08 Societe Des Produits Nestle S.A. Procédé et dispositif de dissolution d'une poudre dans un liquide
EP2594331A1 (fr) * 2008-03-05 2013-05-22 United Waters International AG Procédé et dispositif d'introduction de gaz dans des liquides
US8876363B2 (en) 2008-03-05 2014-11-04 United Waters International Ag Device for gassing liquids
US10654008B2 (en) 2015-09-24 2020-05-19 Tetra Laval Holdings & Finance S.A. Baffle pipe segment, injector device and dissolving installation

Also Published As

Publication number Publication date
CH682460A5 (de) 1993-09-30
EP0486933A3 (fr) 1992-06-03
ATE119804T1 (de) 1995-04-15
EP0486933B1 (fr) 1995-03-15
DE59104957D1 (de) 1995-04-20

Similar Documents

Publication Publication Date Title
DE1269071B (de) Vakuum-Flotationsverfahren und -vorrichtung
DE2818127C2 (de) Verfahren und Vorrichtung zur Ultrafiltration von Flüssigkeitsgemischen
DE2313626B2 (de) Vorrichtung zum kontinuierlichen Auflösen eines pulverförmigen Stoffes in einer Flüssigkeit
DE1022189B (de) Verfahren und Vorrichtung zur Schaumzerstoerung
DE4116916C2 (de) Flotationseinrichtung zur Störstoff- insbesondere Druckfarbenentfernung aus Altpapiersuspensionen
EP3956045A2 (fr) Procédé et dispositif de fabrication industrielle d'un extrait par extraction solide-liquide
DE102016101626A1 (de) Verfahren und Vorrichtung zur Extraktion von Aromastoffen
DE3035168A1 (de) Vorrichtung zur behandlung von pulvern
EP0486933B1 (fr) Dispositif pour la dissolution de matières solides en vrac dans un liquide
DE2417580A1 (de) Verfahren und vorrichtung zum richten eines feste abriebpartikel enhaltenden fluessigkeitsstrahls auf die oberflaeche eines werkstuecks
DE2901529C2 (de) Verfahren und Vorrichtung zur kontinuierlichen Entfernung von unerwünschten Bestandteilen aus Feststoffpartikeln mit einem Lösungsmittel im Gegenstrom
DE2603798C2 (de) Vorrichtung zur Begasung von Flüssigkeiten und/oder Flüssig-Feststoffgemischen
DE102004012024B4 (de) Verfahren und Vorrichtung zur Aufbereitung von Wasser/Feststoffgemischen
EP0426143B1 (fr) Procédé et dispositif d'extraction de métaux de pierres et de sédiments
EP0625382A1 (fr) Procédé et dispositif pour séparer l'huile de mélanges d'huile avec des matières solides
DE1144875B (de) Verfahren zur Zurueckgewinnung von Acrylnitrilpolymeren in Krumenform aus Abfallspinnloesung
EP0498024B1 (fr) Procédé et dispositif d'extraction de métaux de pierres et de sédiment
DE2523471C2 (de) Behandlungsanlage für Schüttgüter
DE535604C (de) Verfahren und Einrichtung zum Loeschen von Kalk oder aehnlichen, Staub entwickelnden Stoffen
DE857489C (de) Verfahren und Vorrichtung zur Extraktion von Schwefel aus schwefelhaltigen Massen, insbesondere Gasreinigungsmassen, mittels eines Loesungsmittels
EP1050342A1 (fr) Procédé pour éliminer des impuretés d'une suspension aqueuse de fibres à papier
DE1517701B2 (de) Vorrichtung zur reinigung von abwaessern
DE102022131061A1 (de) Vorrichtung zum Behandeln, Spülvorrichtung zum Spülen und Trocknungsvorrichtung zum Trocknen von partikelförmigen Feststoffen sowie Verfahren zum Behandeln, Spülen und/oder Trocknen von derartigen Feststoffen
DE680781C (de) Verfahren zur Verbesserung der Margarine durch Kneten
DE1167313B (de) Vorrichtung zur kontinuierlichen Herstellung von gesaettigten, sinkstofffreien Loesungen

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

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

AK Designated contracting states

Kind code of ref document: A3

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

17P Request for examination filed

Effective date: 19921127

17Q First examination report despatched

Effective date: 19940315

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

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

Ref country code: ES

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

Effective date: 19950315

Ref country code: DK

Effective date: 19950315

Ref country code: GB

Effective date: 19950315

REF Corresponds to:

Ref document number: 119804

Country of ref document: AT

Date of ref document: 19950415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59104957

Country of ref document: DE

Date of ref document: 19950420

ITF It: translation for a ep patent filed

Owner name: FUMERO BREVETTI S.N.C.

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

Ref country code: SE

Effective date: 19950615

ET Fr: translation filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19950315

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

Ref country code: AT

Effective date: 19951113

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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20101130

Year of fee payment: 20

Ref country code: NL

Payment date: 20101111

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20101119

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20101117

Year of fee payment: 20

Ref country code: IT

Payment date: 20101122

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59104957

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59104957

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: V4

Effective date: 20111113

BE20 Be: patent expired

Owner name: *CADEO ANGELO

Effective date: 20111113

Owner name: *MITECO A.G.

Effective date: 20111113

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20111113

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20111114