DE554642C - Process for separating particles from gases using alternating magnetic fields - Google Patents

Process for separating particles from gases using alternating magnetic fields

Info

Publication number
DE554642C
DE554642C DES92887D DES0092887D DE554642C DE 554642 C DE554642 C DE 554642C DE S92887 D DES92887 D DE S92887D DE S0092887 D DES0092887 D DE S0092887D DE 554642 C DE554642 C DE 554642C
Authority
DE
Germany
Prior art keywords
gases
alternating
fields
magnetic fields
alternating magnetic
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
DES92887D
Other languages
German (de)
Inventor
Dr-Ing Carl Theodor Buff
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens 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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DES92887D priority Critical patent/DE554642C/en
Application granted granted Critical
Publication of DE554642C publication Critical patent/DE554642C/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
    • B03C1/00Magnetic separation
    • B03C1/02Magnetic separation acting directly on the substance being separated
    • B03C1/23Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp

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  • Physical Or Chemical Processes And Apparatus (AREA)

Description

Verfahren zum Abscheiden von Teilchen aus Gasen mittels magnetischer Wechselfelder Es ist ein Verfahren bekannt, mittels dessen in Gasen enthaltene Schwebeteilchen durch magnetische, von Elektromagneten erzeugte Wechselfelder abgeschieden werden. Um dieses Verfahren auch zum Niederschlagen von nichtmagnetischen Teilchen anwenden zu können, ist der Vorschlag gemacht worden, die schwebekörperhaltigen Gase vor ihrem Eintritt in das magnetische Wechselfeld zunächst durch ein elektrisches Feld streichen zu lassen, in dem sie vorionisiert werden. Um die Abscheidung nicht-oder schlechtleitender Teilchen aus Gasen mittels magnetischer Wechselfelder durchführen zu können, hat man vorgeschlagen, magnetische Wechselfelder anzuwenden, die eine sehr hohe Frequenz (etwa 30 Millionen Schwingungen in der Sekunde) besitzen. Zur Erzeugung von Wechselfeldern mit so hoher Frequenz ist eine besondere, immerhin kostspielige Apparatur erforderlich. Im folgenden wird nun gezeigt, wie man nicht- oder schlechtleitende Teilchen aus Gasen mittels magnetischer Wechselfelder von gewöhnlicher Frequenz zur Abscheidung bringen kann.Method for separating particles from gases by means of alternating magnetic fields A method is known by means of which suspended particles contained in gases are separated out by means of magnetic alternating fields generated by electromagnets. In order to be able to use this method for the deposition of non-magnetic particles, the proposal has been made that the gases containing the float should first be swept through an electric field before they enter the alternating magnetic field, in which they are pre-ionized. In order to be able to separate non-conductive or poorly conductive particles from gases by means of alternating magnetic fields, it has been proposed to use alternating magnetic fields which have a very high frequency (about 30 million oscillations per second). In order to generate alternating fields with such a high frequency, special, at least expensive, apparatus is required. In the following it will be shown how non-conductive or poorly conductive particles from gases can be separated by means of alternating magnetic fields of normal frequency.

Erfindungsgemäß werden die zu reinigenden Gase zunächst in an sich bekannter Weise, z. B. durch Wasser in flüssigem oder dampfförmigem Zustand, so befeuchtet, daß die Schwebeteilchen leitfähig werden, und dann erst durch die magnetischen Wechselfelder hindurchgeleitet, in denen die Schwebeteilchen abgeschieden werden. Die Befeuchtung der Schwebeteilchen kann vorteilhaft auch dadurch erreicht werden, daß die Gase vor ihrem Eintritt in die Wechselstromfelder in an sich bekannter Weise indirekt gekühlt werden. Durch diese Vorbehandlung der zu reinigenden Gase wird hauptsächlich der Vorteil erreicht, daß man ohne weiteres auch solche Gase mittels magnetischer Wechselfelder reinigen kann, die schlecht- oder nichtleitende Teilchen besitzen, und ohne daß eine Vorionisierung der Gase notwendig ist. Dies bedeutet auch eine Verbilligung des Verfahrens zur Reinigung von Gasen, bei dem magnetische Felder zur Niederschlagung verwendet werden.According to the invention, the gases to be cleaned are initially per se known manner, e.g. B. by water in liquid or vapor state, so moistened so that the suspended particles become conductive, and only then by the magnetic ones Alternating fields passed through, in which the suspended particles are deposited. The moistening of the suspended particles can advantageously also be achieved by that the gases before their entry into the alternating current fields in a manner known per se be cooled indirectly. This pretreatment of the gases to be cleaned is mainly achieved the advantage that you can easily use such gases alternating magnetic fields can clean the poorly conductive or non-conductive particles own, and without a pre-ionization of the gases is necessary. this means also a cheaper process for cleaning gases, with the magnetic Fields are used for crackdown.

Eine weitere Vervollkommnung des Verfahrens kann dadurch erreicht werden, daß die Gase in an sich bekannter Weise durch mehrere aufeinanderfolgende Systeme von magnetischen Wechselfeldern verschiedener Stärke geführt werden. Dadurch ist es möglich, die Schwebeteilchen nach Größe oder Art gesondert aus den Gasen abzuscheiden. Diese Behandlung kann noch durch verschiedene Einstellung der Strömungsgeschwindigkeiten der Gase in den einzelnen Wechselstromfeldern verstärkt werden.A further improvement of the method can thereby be achieved be that the gases in a known manner by several successive Systems of alternating magnetic fields of different strengths are guided. Through this it is possible to separate the suspended particles according to size or type from the gases to be deposited. This treatment can still be achieved by setting the flow velocities in various ways the gases in the individual alternating current fields are amplified.

In manchen Fällen kann es ferner vorteilhaft sein, den Gasstrom in an sich bekannter Weise in mehrere Teilströme aufzuteilen und diese dann durch die magnetischen Wechselfelder hindurchzuführen. Man kann die Geschwindigkeiten der Teilströme beim Passieren durch das oder die elektromagnetischen Wechselfelder z. B. mittels Leit- oder Drosselvorrichtungen besser beherrschen:In some cases, it can also be advantageous to the gas flow in to divide in a known manner into several substreams and then through the magnetic alternating fields. You can see the speeds the Partial currents when passing through the electromagnetic alternating field or fields z. B. better mastered by means of control or throttling devices:

Claims (3)

PATENTANSPRÜCHE: i. Verfahren zum Abscheiden von nicht-oder schlechtleitenden Teilchen aus Gasen mittels magnetischer, durch Elektromagnete erzeugter Wechselfelder, dadurch gekennzeichnet, daß die zu reinigenden Gase zunächst in an sich bekannter Weise, z. B. durch Wasser in flüssigem oder dampfförmigem Zustand, so befeuchtet werden, daß die Schwebeteilchen leitfähig werden und dann erst durch die magnetischen Wechselfelder hindurchgeleitet werden. PATENT CLAIMS: i. Process for the deposition of non-conductive or poorly conductive Particles from gases by means of magnetic alternating fields generated by electromagnets, characterized in that the gases to be cleaned are initially known per se Way, e.g. B. by water in a liquid or vapor state, so moistened be that the suspended particles become conductive and only then through the magnetic ones Alternating fields are passed through. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die Gase vor dem Eintritt in die Wechselstromfelder zwecks Erzielung der gewünschten Feuchtigkeit in an.z sich bekannter Weise indirekt gekühlt werden. 2. The method according to claim i, characterized in that that the gases before entering the alternating current fields in order to achieve the desired Moisture can be indirectly cooled in a known manner. 3. Verfahren nach Anspruch i und 2, dadurch gekennzeichnet, daß die Gase in an sich bekannter Weise durch mehrere aufeinanderfolgende Systeme von magnetischen Wechselfeldern verschiedener Stärke geführt werden. q.. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß der Gasstrom in an sich bekannter Weise in mehrere Teilströme aufgeteilt wird und diese dann durch die magnetischen Wechselfelder hindurchgeführt werden.3. Procedure according to claim i and 2, characterized in that the gases are known per se Way through several successive systems of alternating magnetic fields of different strengths. q .. The method according to claim i, characterized in that that the gas stream is divided into several substreams in a manner known per se and these are then passed through the alternating magnetic fields.
DES92887D 1929-07-20 1929-07-20 Process for separating particles from gases using alternating magnetic fields Expired DE554642C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES92887D DE554642C (en) 1929-07-20 1929-07-20 Process for separating particles from gases using alternating magnetic fields

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES92887D DE554642C (en) 1929-07-20 1929-07-20 Process for separating particles from gases using alternating magnetic fields

Publications (1)

Publication Number Publication Date
DE554642C true DE554642C (en) 1933-01-25

Family

ID=7517541

Family Applications (1)

Application Number Title Priority Date Filing Date
DES92887D Expired DE554642C (en) 1929-07-20 1929-07-20 Process for separating particles from gases using alternating magnetic fields

Country Status (1)

Country Link
DE (1) DE554642C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940110C (en) * 1951-08-04 1956-03-08 Metallgesellschaft Ag Process for the electrical separation of highly insulating dust from gases

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940110C (en) * 1951-08-04 1956-03-08 Metallgesellschaft Ag Process for the electrical separation of highly insulating dust from gases

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