DE744805C - Process for the electrostatic separation of batches - Google Patents

Process for the electrostatic separation of batches

Info

Publication number
DE744805C
DE744805C DEM150534D DEM0150534D DE744805C DE 744805 C DE744805 C DE 744805C DE M150534 D DEM150534 D DE M150534D DE M0150534 D DEM0150534 D DE M0150534D DE 744805 C DE744805 C DE 744805C
Authority
DE
Germany
Prior art keywords
batches
separation
electrostatic separation
wetted
electrostatic
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
DEM150534D
Other languages
German (de)
Inventor
Dr-Ing Richard Heinrich
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 DEM150534D priority Critical patent/DE744805C/en
Application granted granted Critical
Publication of DE744805C publication Critical patent/DE744805C/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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C7/00—Separating solids from solids by electrostatic effect

Landscapes

  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Description

Verfahren zur elektrostatischen Scheidung von Gemengen Die Erfindung betrifft ein Verfahren zur elektrostatischen Scheidung von Gemengen, insbesondere Kohle- und Erzgemengen, und bezieht sich im besonderen auf solche Verfahren, bei denen das elektrostatische Scheidegut vor der Trennung mit öligen Benetzungsmitteln vorbehandelt wird. Diese bekannte Vorbehandlung hat den Zweck, durch Erhöhung des Oberflächenwiderstandes mindestens eines der- Gemengeanteile die Trennschärfe im elektrostatischen Feld zu steigern.Process for the electrostatic separation of batches The invention relates to a method for the electrostatic separation of batches, in particular Coal and ore batches, and relates in particular to such processes the electrostatic material to be separated with oily wetting agents before separation is pretreated. The purpose of this known pretreatment is to increase the Surface resistance of at least one of the mixture proportions the selectivity in to increase electrostatic field.

Bei der Erfindung kommt es nun darauf an, daß nicht nur das Scheidegut vor der Trennung, sondern auch die mit dem vorbehandelten Gut beschickten Elektroden des Scheiders mit einem Öl benetzt werden. Man erreicht dadurch, daß die mit Öl benetzten Gemengeanteile an der benetzten Elektrode besser haften, als dies bei einer unbenetzten Elektrode der Fall ist. Andererseits bleiben die während der Vorbehandlung unbenetzt gebliebenen Gemengeanteile nicht an der benetzten Elektrode hängen, werden vielmehr von ihr unter der Wirkung des elektrostatischen Feldes abgewiesen.In the case of the invention, it is important that not only the material to be cut before the separation, but also the electrodes charged with the pretreated material of the separator must be moistened with an oil. One achieves that with oil wetted batches adhere better to the wetted electrode than at an unwetted electrode is the case. On the other hand, they remain during the pretreatment Mixtures that have not been wetted will not stick to the wetted electrode rather, rejected by it under the action of the electrostatic field.

Es hat sich gezeigt, daß es zweckmäßig ist, für die mit Öl benetzten Elektroden Halbleiter, z. B. Marmor, Schiefer, Beton o. dgl., zu verwenden oder die Elektroden mit einem Halbleiter zu betreiben. Solche Halbleiterelektroden sind bei elektrostatischen Scheidern bekannt und eignen sich besser als metallische Flächen für die Benetzung und das Benetzthalten mit einem Öl.It has been shown to be useful for those wetted with oil Electrodes semiconductors, e.g. B. marble, slate, concrete o. The like. To use or to operate the electrodes with a semiconductor. Such semiconductor electrodes are known for electrostatic separators and are better suited than metallic surfaces for wetting and keeping wetting with an oil.

Claims (1)

PATENTANSPRUCH: Verfahren zur elektrostatischen Scheidung von Gemengen, insbesondere Kohle-und Erzgemengen, nach Vorbehandlung des Scheidegutes mit öligen. Benetzungsmitteln vor der Trennung. dadurch gekennzeichnet, da13 -die mit dem vorbehandeltem Cut _.beechickten, vorzugsweise aus einem Halbleiter bestehenden oder mit einem solchen bekleideten Elektroden des Scheiders mit einem 01 benetzt werden. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden. deutsche Patentschriften ...... r. 278 596, 283 02i. PATENT CLAIM: Process for the electrostatic separation of batches, in particular coal and ore batches, after pretreatment of the material to be separated with oily. Wetting agents prior to separation. characterized in that the electrodes of the separator, which are coated with the pretreated cut and preferably made of a semiconductor or covered with such a cut, are wetted with an 01. To distinguish the subject of the application from the state of the art, the following publications were taken into account in the granting procedure. German patents ...... r. 278 596, 283 02i.
DEM150534D 1941-04-10 1941-04-10 Process for the electrostatic separation of batches Expired DE744805C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM150534D DE744805C (en) 1941-04-10 1941-04-10 Process for the electrostatic separation of batches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM150534D DE744805C (en) 1941-04-10 1941-04-10 Process for the electrostatic separation of batches

Publications (1)

Publication Number Publication Date
DE744805C true DE744805C (en) 1944-01-26

Family

ID=7336865

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM150534D Expired DE744805C (en) 1941-04-10 1941-04-10 Process for the electrostatic separation of batches

Country Status (1)

Country Link
DE (1) DE744805C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1159362B (en) * 1959-09-11 1963-12-19 Foster Fraas Electrostatic separator
US3941685A (en) * 1974-08-15 1976-03-02 Kali Und Salz Aktiengesellschaft Process for electrostatic separation of pyrite from crude coal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE278596C (en) *
DE283021C (en) *

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE278596C (en) *
DE283021C (en) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1159362B (en) * 1959-09-11 1963-12-19 Foster Fraas Electrostatic separator
US3941685A (en) * 1974-08-15 1976-03-02 Kali Und Salz Aktiengesellschaft Process for electrostatic separation of pyrite from crude coal

Similar Documents

Publication Publication Date Title
DE744805C (en) Process for the electrostatic separation of batches
DE1793254A1 (en) Process for the recovery of cyclopentene, isoprene and a diolefin stream from C? -Cracked gasoline
DE893065C (en) Isolator attachment
DE747746C (en) Process for bonding rubber or rubber substitutes to metal
DE910244C (en) Mixing machine, especially for oil sand
DE821086C (en) Dry rectifier
DE897074C (en) Method for the treatment of clay suspensions
DE746197C (en) Sheet metal brush holder for electrical machines
DE752222C (en) Process for the pretreatment of electrostatic material to be separated with oily wetting agents before separation
DE2839082C2 (en) Process for the production of a composite body
DE829020C (en) Process for the production of carrier electrodes for dry rectifiers
DE753800C (en) Ceramic dielectric capacitor
DE352234C (en) Process for the separation of pyrotechnic mixtures which consist of metals on the one hand and salts and oxides on the other
DE742630C (en) Process for the production of protective coatings from bitumen or coal tar pitch
DE645153C (en) Waterproofing for engineering structures, especially for railway bridges
DE1470946C (en) Mixture of bitumen, a polymer and machine oil for use as underbody protection for motor vehicles
DE504868C (en) Painting method
DE830868C (en) Process for resealing of porous metal surfaces or of porous protective layers on metals consisting of metal salts, oxides or hydroxides
DE892573C (en) Process for the production of cleaning devices, in particular cleaning rollers for spinning machines
DE477911C (en) Electric relay
DE744673C (en) Method and device for electrostatic separation
DE476211C (en) Process for repelling boiling liquids, especially soaps
DE915092C (en) Method for producing a road surface, in particular for bridges
DE850597C (en) Method for comparing the distribution and composition of the electrode precipitate from the electrical cleaning of gases
DE718155C (en) Device for applying metallic coatings to metallic workpieces