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DE829131C - Process for the operation of electrostatic separators for the separation of two- or multicomponent mixtures - Google Patents

Process for the operation of electrostatic separators for the separation of two- or multicomponent mixtures

Info

Publication number
DE829131C
DE829131C DEM3746A DEM0003746A DE829131C DE 829131 C DE829131 C DE 829131C DE M3746 A DEM3746 A DE M3746A DE M0003746 A DEM0003746 A DE M0003746A DE 829131 C DE829131 C DE 829131C
Authority
DE
Germany
Prior art keywords
separation
electrostatic separators
multicomponent mixtures
voltage
separators
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
DEM3746A
Other languages
German (de)
Inventor
Theodor Bantz
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Priority to DEM3746A priority Critical patent/DE829131C/en
Application granted granted Critical
Publication of DE829131C publication Critical patent/DE829131C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C7/00Separating solids from solids by electrostatic effect

Landscapes

  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Description

Verfahren zum Betriebe von elektrostatischen Scheidern zum Trennen von Zwei- oder Mehrstoffgemengen Beim Betriebe von elektrostatischen Scheidern zum Trennen von Zwei- oder _Mehrstoffgemengen nach Maß-abe ihrer unterschiedlichen Oberflächenleitfähigkeit, insbesondere von solchen Scheidern, die init zwei übereinanderliegenden gegenpoligen. l,'lek-trodezifläclien versehen sind, von denen die obere durchbrochen und an Hochspannung gelegt ist, während die untere als Aufgabefläche für das Scheidegut dient und an Erde liegt, hates sich gezeigt, daß schon geringe Abweichungen von der el el dem je#veiligen Anwendungsfall zweckentsprechenden Spannungshöhe in erheblichem Maße einen ungünstigen Einfluß auf den Trennungsvorgang und damit auf die meligenmäßige Ausbeute an ausgesondertem Gut ausüben können.Method of operating electrostatic separators for separation of two- or multi-substance batches When operating electrostatic separators for Separation of two- or multicomponent mixtures according to their different surface conductivities, especially of those separators that have two opposing polarities lying one above the other. l, 'lek-trodezifläclien are provided, the upper one of which is perforated and connected to high voltage is placed, while the lower one serves as a loading area for the material to be cut and on Earth, it has been shown that even slight deviations from the el el dem depending on the application, the appropriate voltage level to a considerable extent an unfavorable influence on the separation process and thus on the meligenous Ability to exercise the yield of discarded goods.

iNlan hat geglaubt, daß diese Ausbeuteschwankungen auf zufälligen Verschiedenheiten der Oberflächenbeschaffenheit der Gemengeteilchen beruhen, doch machte sich dieser -Mangel auch bei ständig gleichbleibenden Unterschieden in der Oberflächenleitfähigkeit der Teilchen bemerkbar.iNlan believed that these fluctuations in yield were due to chance Differences in the surface properties of the mixture particles are based, however This deficiency made itself felt even with constant differences in the Surface conductivity of the particles noticeable.

Die Erfindung beruht nun auf der Erkenntnis der wahren Ursache der Schwierigkeiten, die darin zu sehen ist, daß im allgemein-en die Spannung des zwischen den gegenpoligen Elektroden unterhaltenen elektrostatischen Feldes gerade nur so hoch gewählt werden darf, daß nicht allen Gemengeteilchen durch Aufladung untereinander oder auf der als Aufgabefläche dienenden Elektrode das u - gleiche Potential ausgedrückt und damit eine Tren nung überhaupt unmöglich gemacht wird.The invention is based on the knowledge of the real cause of the difficulties, which is to be seen in the fact that, in general, the voltage of the electrostatic field maintained between the electrodes of opposite polarity may only be selected so high that not all of the mixture particles are charged with one another or on the electrode serving as the application surface, the u - equal potential is expressed and thus a separation is made impossible at all.

In Verfolg dieser Erkenntnis kommt es bei dem Verfahren nach der Erfindung darauf an, daß die für den jeweiligen Anwendungsfall gewählte Elektrodenspannung durch selbsttätige Regelung auf gleichbleibender Höhe gehalten und von Schwankungen des Stromnetzes oder der sonst vorhandenen Spannungsquellt unabhängig gemacht wird.In pursuit of this knowledge, it comes with the method according to the invention on that the electrode voltage selected for the respective application by automatic regulation kept at a constant level and from fluctuations in the Power grid or the otherwise existing voltage source is made independent.

Diese selbsttätige Konstanthaltung der Elektrodenspannung kann auf verschiedene Art, z. B. durch Kontaktvoltmesser mit über ein Umkehrrelais gesteuertem Hilfsmotor für den in der Hochspannungserzeugungsanlage zumeist vorhandenen Regeltransformator oder durch handelsübliche Schnell-, Tyrill- oder gittergesteuerteRegler, durchgeführt werden. Das Verfahren nach der Erfindung ist in Verbindung sowohl mit mechanischen oder nichtmechanischen Ein- oder Mehrphasengleichrichtern wie auch mit Generatoren als Hochspannungsquelle verwendbar. Bei einem Hochspannungsgenerator wird dessen Feldregelung für die selbsttätige Konstanthaltung der Elektrodenspannung herangezogen.This automatic maintenance of the electrode voltage can be on different kind, e.g. B. by contact voltmeter with controlled via a reversing relay Auxiliary motor for the regulating transformer mostly present in the high-voltage generating plant or by commercially available high-speed, Tyrill or grid-controlled regulators will. The method according to the invention is in connection with both mechanical or non-mechanical single or multi-phase rectifiers as well as with generators can be used as a high voltage source. In the case of a high-voltage generator, its Field control is used to automatically keep the electrode voltage constant.

Claims (1)

PATENTANSPRUCH: Verfahren zum Betriebe von elektrostatischen Scheidern zum Trennen von Zwei- oder Mehrstoffgemengen unter Verwendung von mit Hochspannung gespeisten Elektroden, dadurch gekennzeichnet, daß die Elektrodenspannung nach dem jeweiligen Anwendungsfall angepaßter Einstellung durch selbsttätige Regelung auf gleichbleibender Höhe gehalten wird. Claim: Process for operating electrostatic separators for separating two or multiple substances using high-voltage fed electrodes, characterized in that the electrode voltage is kept at a constant level by automatic control according to the particular application.
DEM3746A 1944-02-15 1944-02-15 Process for the operation of electrostatic separators for the separation of two- or multicomponent mixtures Expired DE829131C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM3746A DE829131C (en) 1944-02-15 1944-02-15 Process for the operation of electrostatic separators for the separation of two- or multicomponent mixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM3746A DE829131C (en) 1944-02-15 1944-02-15 Process for the operation of electrostatic separators for the separation of two- or multicomponent mixtures

Publications (1)

Publication Number Publication Date
DE829131C true DE829131C (en) 1952-01-24

Family

ID=7292325

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM3746A Expired DE829131C (en) 1944-02-15 1944-02-15 Process for the operation of electrostatic separators for the separation of two- or multicomponent mixtures

Country Status (1)

Country Link
DE (1) DE829131C (en)

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