DE679429C - Process for processing through heavy fluids with magnetically influenceable suspension medium - Google Patents

Process for processing through heavy fluids with magnetically influenceable suspension medium

Info

Publication number
DE679429C
DE679429C DEK150073D DEK0150073D DE679429C DE 679429 C DE679429 C DE 679429C DE K150073 D DEK150073 D DE K150073D DE K0150073 D DEK0150073 D DE K0150073D DE 679429 C DE679429 C DE 679429C
Authority
DE
Germany
Prior art keywords
processing
suspension medium
current field
magnetically influenceable
magnetic material
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
Application number
DEK150073D
Other languages
German (de)
Inventor
Dipl-Ing Dr Walter Vogel
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.)
Fried Krupp Grusonwerk AG
Original Assignee
Fried Krupp Grusonwerk 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 Fried Krupp Grusonwerk AG filed Critical Fried Krupp Grusonwerk AG
Priority to DEK150073D priority Critical patent/DE679429C/en
Application granted granted Critical
Publication of DE679429C publication Critical patent/DE679429C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
    • B03B5/44—Application of particular media therefor
    • B03B5/447—Application of particular media therefor recovery of heavy media
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/32—Magnetic separation acting on the medium containing the substance being separated, e.g. magneto-gravimetric-, magnetohydrostatic-, or magnetohydrodynamic separation

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Paper (AREA)

Description

Verfahren zur Aufbereitung durch Schwerflüssigkeit mit magnetisch beeinflußbarem Schwebemittel Die Erfindung betrifft eine Weiterausbildung des Verfahrens zur. Aufbereitung durch Schwerflüssigkeit mit magnetisch beeinflußbarem Schwebemittel nach Patent 663 151. Bei diesem Verfahren sollen die von dem behandelten Gut und, oder dessen Abrieb durch ein Gleichstromfeld auf magnetischem Wege. abgetrennten, zusammengebällten Schwebemittel der Schwerflüssigkeit daran anschließend' durch ein reines Wechselstromfeld derart entmagnetisiert werden, daß die Zusammenballungen auseinanderfallen, wodurch die Schwebemittel wieder eine Suspension im Wasser bilden. Wie sich indessen bei der praktischen Durchführung des Verfahrens gezeigt hat, läßt sich das Auseinanderfallen der Zusammenballungen und eine gleichmäßige Verteilung der Schwebemittel im Wasser dadurch verbessern, wenn gemäß der Erfindung die Stärke des Wechselstromfeldes in .der Bewegungsrichtung des Gutes allmählich abnimmt. Dies kann man z. B. dadurch erreichen, daß der Ausgangspol des Wechselstrommagneten breiter gehalten wird als der Eingangspol, oder indem man Magnetfelder abnehmender Stärke hintereinanderschaltet. Zweckmäßig wird die zu scheidende Trübe einem das Gleichstromfeld durchlaufenden Band zugeführt, durch das die im Gleichstromfeld aus der Trübe herausgezogenen Schwebemittel dem Wechselstromfeld zugeführt und durch dieses hindurchgeführt werden. Um im Gleichstromfeld eine gute Trennung des.. magnetischen Gutes vom unmagnetischen zu erreichen, empfiehlt es sich, die zu behandelnde Trübe so in das Gleichstromfeld einzuführen, daß sie einem langsam zunehmenden Magnetfeld ausgesetzt wird. Auf diese Weise wird das Scheidegut schon auf der Aufgabeschurre aufgelockert, so daß eine zu plötzliche Zusammenballung des magnetischen Gutes unter Einschluß von untnagnetischem Gut vermieden wird und ein leichtes Herausziehen der magnetischen Teilchen aus der Schwerflüssigkeit möglich ist. Dem von der Scheidetrommel abfallenden. unmagnetischen Gut wird in an sich bekannter Weise zweckmäßig im Sammelbehälter von unten her ein Flüssigkeitsstrom entgegengeführt, um an dem unmagnetischen Gut gegebenenfalls noch anhaftendes magnetisches Gut zu entfernen. Die magnetischen Gutteilchen gelangen unter der Einwirkung des Flüssigkeitsstromes dann wieder an die Scheidetrommel bzw. auf das Förderband und werden durch dieses ausgetragen. Mitemporgehobenes unmagnetisches Gut verläßt über, einen Überlauf den Sammelbehälter, aus dem sich unten sammelndes unmagnetisches Gut besonders ausgetragen wird.Method for processing by heavy liquid with magnetically influenceable suspension means The invention relates to a further development of the method for. Processing by heavy liquid with a magnetically influenceable suspension means according to patent 663 151. In this process, the treated material and / or its abrasion are to be magnetized by a direct current field. separated, agglomerated suspension means of the heavy liquid are then demagnetized by a pure alternating current field in such a way that the agglomerations fall apart, whereby the suspension means form a suspension in the water again. However, as has been shown in the practical implementation of the method, the breakdown of the agglomerations and an even distribution of the suspended matter in the water can be improved if, according to the invention, the strength of the alternating current field gradually decreases in the direction of movement of the goods. This can be done e.g. B. can be achieved by keeping the output pole of the AC magnet wider than the input pole, or by connecting magnetic fields of decreasing strength in series. The pulp to be separated is expediently fed to a belt running through the direct current field, by means of which the suspended means drawn out of the pulp in the direct current field are fed to the alternating current field and passed through it. In order to achieve a good separation of the magnetic material from the non-magnetic material in the direct current field, it is advisable to introduce the pulp to be treated into the direct current field in such a way that it is exposed to a slowly increasing magnetic field. In this way, the material to be cut is loosened up on the feed chute, so that the magnetic material is prevented from clumping together too suddenly, including non-magnetic material, and the magnetic particles can be easily pulled out of the heavy liquid. The one falling off the cutting drum. In a manner known per se, a flow of liquid is expediently directed against non-magnetic material from below in the collecting container in order to remove any magnetic material still adhering to the non-magnetic material. The magnetic material particles then reach the cutting drum or the conveyor belt again under the action of the liquid flow and are discharged by this. Non-magnetic material raised at the same time leaves the collecting container via an overflow, from which non-magnetic material that collects at the bottom is especially discharged.

Die Stärke des Stromfeldes in der Bewegungsrichtung des Gutes allmählich abnehmen zu lassen, ist bei Magnetscheidern bekannt. Neu ist jedoch die Verwendung eines solchen Magnetscheiders bei dem Verfahren nach dem Hauptpatent 663 151. Nur in dieser Verbindung wird Schutz beansprucht.The strength of the current field gradually increases in the direction of movement of the goods to be removed is known with magnetic separators. What is new, however, is the use of such a magnetic separator in the process according to the main patent 663 151. Only protection is claimed in this connection.

Claims (1)

PATENTANSPRUCH: Verfahren zur Aufbereitung durch Schwerflüssigkeit mit magnetisch beeinflußbarem Schwebemittel nach Patent 663 151, dadurch gekennzeichnet, daß die Stärke des Wechselstromfeldes in der Bewegungsrichtung des Gutes allmählich abnimmt.PATENT CLAIM: Process for processing by heavy liquid with magnetically controllable suspension means according to patent 663 151, characterized in that that the strength of the alternating current field gradually increases in the direction of movement of the goods decreases.
DEK150073D 1938-03-27 1938-03-27 Process for processing through heavy fluids with magnetically influenceable suspension medium Expired DE679429C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK150073D DE679429C (en) 1938-03-27 1938-03-27 Process for processing through heavy fluids with magnetically influenceable suspension medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK150073D DE679429C (en) 1938-03-27 1938-03-27 Process for processing through heavy fluids with magnetically influenceable suspension medium

Publications (1)

Publication Number Publication Date
DE679429C true DE679429C (en) 1939-08-05

Family

ID=7252049

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK150073D Expired DE679429C (en) 1938-03-27 1938-03-27 Process for processing through heavy fluids with magnetically influenceable suspension medium

Country Status (1)

Country Link
DE (1) DE679429C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633987A (en) * 1948-12-27 1953-04-07 American Cyanamid Co Viscosity control in heavy media separation
DE907881C (en) * 1951-02-09 1954-03-29 Westfalia Dinnendahl Groeppel Recovery of magnetically influenceable weighting material in the sink-float processing of coal, ore and other minerals
DE927441C (en) * 1951-02-21 1955-05-09 Westfalia Dinnendahl Groeppel Device for the demagnetization of magnetically influenceable weighting material in the swimming and sink processing of coal, ore and other minerals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633987A (en) * 1948-12-27 1953-04-07 American Cyanamid Co Viscosity control in heavy media separation
DE907881C (en) * 1951-02-09 1954-03-29 Westfalia Dinnendahl Groeppel Recovery of magnetically influenceable weighting material in the sink-float processing of coal, ore and other minerals
DE927441C (en) * 1951-02-21 1955-05-09 Westfalia Dinnendahl Groeppel Device for the demagnetization of magnetically influenceable weighting material in the swimming and sink processing of coal, ore and other minerals

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