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EP1243339B1 - Procédé pour la séparation sélective des particules d'une suspension - Google Patents

Procédé pour la séparation sélective des particules d'une suspension Download PDF

Info

Publication number
EP1243339B1
EP1243339B1 EP02004850A EP02004850A EP1243339B1 EP 1243339 B1 EP1243339 B1 EP 1243339B1 EP 02004850 A EP02004850 A EP 02004850A EP 02004850 A EP02004850 A EP 02004850A EP 1243339 B1 EP1243339 B1 EP 1243339B1
Authority
EP
European Patent Office
Prior art keywords
fragmentation
fragmented
process liquid
basket
shock wave
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.)
Expired - Lifetime
Application number
EP02004850A
Other languages
German (de)
English (en)
Other versions
EP1243339A3 (fr
EP1243339A2 (fr
Inventor
Wolfram Edinger
Volker Neubert
Christoph Dr. Schultheiss
Ralf Strässner
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.)
Karlsruher Institut fuer Technologie KIT
Original Assignee
Forschungszentrum Karlsruhe 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 Forschungszentrum Karlsruhe GmbH filed Critical Forschungszentrum Karlsruhe GmbH
Publication of EP1243339A2 publication Critical patent/EP1243339A2/fr
Publication of EP1243339A3 publication Critical patent/EP1243339A3/fr
Application granted granted Critical
Publication of EP1243339B1 publication Critical patent/EP1243339B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
    • B02C2019/183—Crushing by discharge of high electrical energy

Definitions

  • the invention relates to a shock wave generating fragmenting device with a suction device. Particles with at most The target grain size will be selectively from a suspension separated.
  • a method and a device is known known, mineral particles in a liquid in suspension to keep.
  • the latter ends in a centrifuge separator, in which a first rough separation takes place, wherein the coarse fractions are returned to the shredder and the fines a subsequent, second centrifugal separator be supplied.
  • the coarse shares from there are also fed back to the crusher, the fines one Container for collecting the same, the final product. It will the colloid fed to an evaporator and from there finally Dried into a silo.
  • the shredding will carried out with purely grind-like process
  • the filled in the reaction vessel, in the process fluid sinking Fragmentiergut is in the reaction space between the tip of the high voltage electrode and the bottom of the vessel the electrical discharges of a capacitive energy memory exposed and smashed. From a certain grain size are fractional parts by the discharge or the Shock wave in a row in the process fluid whirled up and distributed in it. It creates a kind of suspension. Not aspirated Fractions on the other hand, decline again and become again exposed to the discharge and thus the further fragmentation.
  • the basket at the end of the suction device, which is in the process fluid protrudes, and the mesh surrounding the basket are made of a tough, shockwave resistant material.
  • the Mesh size of the fabric determines up to which grain size be sucked in the process liquid floating particles. Particles with overlying grain size, oversize, become held in the process fluid and through the basket incoming shockwave and its dissolving effect again in forced back the fragmentation volume to the subsequent smashing operation to be suspended again.
  • the mesh fabric on the one hand from an electrically conductive Fabric such as stainless steel (claim 2), which, as required on the mechanical stress is also chemically resistant to the Process liquid and the substances dissolved therein, or from a Dielectric fabrics such as high-strength plastics with even such mechanically and chemically resistant properties.
  • an electrically conductive Fabric such as stainless steel (claim 2), which, as required on the mechanical stress is also chemically resistant to the Process liquid and the substances dissolved therein, or from a Dielectric fabrics such as high-strength plastics with even such mechanically and chemically resistant properties.
  • a Fragmentierstrom is outlined, whose Smashing device according to the principle of electrical Discharge of a capacitive energy storage, the FRANKA principle for example, works.
  • the drawing shows in her figure 1 the electrodynamic fragmentation in principle and in Figure 2 shows the reaction vessel during the process.
  • the reaction vessel ( Figure 2) is partially with process fluid filled, which here is water, because e.g. such substances as Ceramics, glass and minerals should be fragmented.
  • process fluid here is water, because e.g. such substances as Ceramics, glass and minerals should be fragmented.
  • the high voltage electrode is with an insulation sheathed so that only from the area of their tip the discharges take place towards the bottom of the reaction vessel.
  • the soil is here curved, approximately spherical, so that the Process material accumulates there and exposed to discharge safely is.
  • the suction device at its beginning is caused by the unloading Shock wave in the process liquid shaken and from the on freed its network fragments, which then in the discharge volume sink back to the next discharge again to be exposed to fragmentation.
  • the Absaugkorb sits at the end of the suction device (claim 2), in which the aspirated from the process liquid suspension is transported to the inlet into the sediment tray. The Particles settle there on the ground, and those of suspended matter liberated process liquid is finally returned to the reaction vessel fed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Disintegrating Or Milling (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Claims (3)

  1. Dispositif de fragmentation produisant des ondes de choc, muni d'un équipement d'aspiration pourévacuerdu matériau fragmenté (5), constitué en:
    un réacteur (2) rempli d'un fluide de production (3) jusqu'à un niveau donné, dans lequel le matériau à fragmenter (4) est introduit, où il est exposé du moins une fois à un processus de fragmentation par impulsions, pour en être extrait comme matériau fragmenté (5), soulevé en tourbillons dans le fluide de production (3), à travers un équipement d'aspiration (1),
    caractérisé en ce que
    l'équipement d'aspiration (1) se trouvant dans le réacteur (2) est entouré à sa zone d'extrémité d'une cage d'aspiration enveloppée d'un tissu dont l'ouverture de maille correspond à la grosseur de grain maximale à aspirer, les déclassés trop petits, la cage et le tissu étant en en matériau tenace, résistant aux ondes de choc qui empêche le passage des fragments de grains plus gros, les déclassés supérieurs, ce qui fait qu'en raison de l'action de l'onde de choc incidente, ceux-ci retombent dans le volume de fragmentation, étant ainsi exposés à nouveau au processus de fragmentation suivant.
  2. Dispositif de fragmentation selon la revendication 1, caractérisé en ce que
    le tissu est en un matériau électriquement conducteur et chimiquement inerte par rapport eu fluide de production.
  3. Dispositif de fragmentation selon la revendication 1, caractérisé en ce que le tissu est en un matériau diélectrique et chimiquement inerte par rapport au fluide de production (3).
EP02004850A 2001-03-24 2002-03-04 Procédé pour la séparation sélective des particules d'une suspension Expired - Lifetime EP1243339B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10114550 2001-03-24
DE10114550 2001-03-24

Publications (3)

Publication Number Publication Date
EP1243339A2 EP1243339A2 (fr) 2002-09-25
EP1243339A3 EP1243339A3 (fr) 2003-11-26
EP1243339B1 true EP1243339B1 (fr) 2005-12-07

Family

ID=7678897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02004850A Expired - Lifetime EP1243339B1 (fr) 2001-03-24 2002-03-04 Procédé pour la séparation sélective des particules d'une suspension

Country Status (3)

Country Link
EP (1) EP1243339B1 (fr)
AT (1) ATE311939T1 (fr)
DE (1) DE50205148D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10144486C1 (de) 2001-09-10 2003-04-24 Karlsruhe Forschzent Verfahren zum kontinuierlichen nichtthermischen Aufschluß und Pasteurisieren industrieller Mengen organischen Prozessguts durch Elektroporation und Reaktor zum Durchführen des Verfahrens
CA2850980C (fr) * 2011-10-10 2018-05-01 Selfrag Ag Procede de fragmentation ou d'affaiblissement de materiau au moyen d'impulsions a haute tension
CA2928107A1 (fr) * 2013-10-25 2015-04-30 Selfrag Ag Procede de fragmentation et/ou de pre-fragilisation de materiau a l'aide de decharges a haute tension
WO2015058311A1 (fr) * 2013-10-25 2015-04-30 Selfrag Ag Procédé de fragmentation et/ou d'affaiblissement d'un matériau à l'aide de décharges à haute tension

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1169141A (fr) * 1957-03-07 1958-12-23 Solution colloïdale, procédé et appareillage de fabrication
GB864178A (en) * 1959-01-09 1961-03-29 Malcolm Stewart Burgess Treatment of mineral substances and product obtained thereby
PL84385B1 (fr) * 1973-01-11 1976-03-31 Polotechnika Wroclawska Breslau (Polen)
DE2847747C2 (de) * 1978-11-03 1986-04-30 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Vorrichtung zum Sammeln von radioaktiven, staub- oder pulverförmigen Stoffen
GB2092885A (en) * 1982-01-14 1982-08-25 Gen Electric Underwater suction device for irradiated materials
EP0268019A1 (fr) * 1986-11-13 1988-05-25 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Dispositif pour la fragmentation d'un corps solide suspendu dans un fluide
DE19534232C2 (de) 1995-09-15 1998-01-29 Karlsruhe Forschzent Verfahren zur Zerkleinerung und Zertrümmerung von aus nichtmetallischen oder teilweise metallischen Bestandteilen konglomerierten Festkörpern und zur Zerkleinerung homogener nichtmetallischer Festkörper

Also Published As

Publication number Publication date
ATE311939T1 (de) 2005-12-15
EP1243339A3 (fr) 2003-11-26
EP1243339A2 (fr) 2002-09-25
DE50205148D1 (de) 2006-01-12

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