DE523186C - Process and device to prevent dust ignition and explosions during electrical cleaning of gases with flammable dust - Google Patents

Process and device to prevent dust ignition and explosions during electrical cleaning of gases with flammable dust

Info

Publication number
DE523186C
DE523186C DE1930523186D DE523186DD DE523186C DE 523186 C DE523186 C DE 523186C DE 1930523186 D DE1930523186 D DE 1930523186D DE 523186D D DE523186D D DE 523186DD DE 523186 C DE523186 C DE 523186C
Authority
DE
Germany
Prior art keywords
dust
gases
ignition
flammable
electrical
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
DE1930523186D
Other languages
German (de)
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
Application granted granted Critical
Publication of DE523186C publication Critical patent/DE523186C/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
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/72—Emergency control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electrostatic Separation (AREA)

Description

Verfahren und Einrichtung zur Verhütung von Staubzündungen und Explosionen bei der elektrischen Reinigung von Gasen mit entzündlichem Staub Das Hauptpatent betrifft ein Verfahren und eine Einrichtung zur Verhütung von Staubzündungen und Explosionen bei der :elektrischen Reinigung von Gasen mit entzündlichem Staub, insbesondere der Staubluft aus der Innenentstaubung von Braunkohlenbrikettfabriken. Nach dem Hauptpatent werden dem zu reinigenden Gas bei oder vor seinem Eintritt in das elektrische Niederschlagsfeld Flugstaub und Kohlensäure aus Feuerungsa13gasen, z. E. eines Dampfkessels, beigemischt. Die Feuerungsabgase können dabei zur äußeren Beheizung des elektrischen Niederschlagsraumes benutzt werden, zu welchem Zweck das Elektrofilter gemäß dem Hauptpatent mit einer Ummantelung versehen ist, in welche die Kesselabgase einströmen, ehe sie in das elektrische Feld gelangen.Process and device for the prevention of dust ignition and explosions in the electrical cleaning of gases with flammable dust. The main patent relates to a method and a device for preventing dust ignition and Explosions during: electrical cleaning of gases with flammable dust, in particular the dust air from the internal dedusting of lignite briquette factories. After this The main patent is given to the gas to be cleaned at or before its entry into the electrical Precipitation field, fly ash and carbon dioxide from combustion gases, e.g. E. a steam boiler, mixed in. The combustion exhaust gases can be used for external heating of the electrical Precipitation area are used for what purpose the electrostatic precipitator according to the Main patent is provided with a jacket into which the boiler exhaust gases flow, before they get into the electric field.

Der Staubgehalt cfer Feuerungsabgase ist naturgemäß gewissen Schwankungen unterworfen und kann unter Umständen so erheblich sein, daß es unerwünscht ist, diese Staubmengen dem zu reinigenden Gas beizumischen und der Einwirkung des elektrischen Feldes auszusetzen. Aus diesem Grunde wird gemäß der vorliegenden Erfindung der Staubgehalt der Feuerungsabgase dosiert, und zwar dadurch, daß die Abgase vor ihrem Eintritt in das Elektrofilter über einen Staubabscheider geleitet werden. Auf diese Weise ergibt sich die Möglichkeit, den Staubgehalt der Abgase so weitgehend zu vermindern, daß eine unnötige Belastung des Elektrofilters vermieden und doch die durch das Hauptpatent erstrebte Wirkung erreicht wird. In erster Linie ist für die Wirkung das Vorhandensein der in den Abgasen enthaltenen Kohlensäure maßgebend, die durch den dem Elektrofilter vorgeschalteten Staubabscheider nicht beeinflußt wird. Unter Umständen kann die Staubabscheidung aus den Abgasen so weit getrieben werden, daß die Abgase praktisch staubfrei in das zu reinigende Gas bzw. in das elektrische Feld gelangen.The dust content of combustion exhaust gases is naturally certain fluctuations subject and may be so significant that it is undesirable to mix these amounts of dust with the gas to be cleaned and the effect of the electrical Expose the field. For this reason, according to the present invention, the The dust content of the furnace exhaust gases is metered by the fact that the exhaust gases are in front of their Entry into the electrostatic precipitator via a dust collector. To this In this way, there is the possibility of reducing the dust content of the exhaust gases to such an extent that that unnecessary loading of the electrostatic precipitator is avoided and yet the Main patent desired effect is achieved. First and foremost is for the effect the presence of the carbonic acid contained in the exhaust gases is decisive, which is caused by the dust separator upstream of the electrostatic precipitator is not affected. Under Under certain circumstances, the dust separation from the exhaust gases can be driven so far that the exhaust gases are practically dust-free in the gas to be cleaned or in the electrical one Field.

Die nach dem Hauptpatent vorgesehene Ummantelung des elektrischen Niederschlagsraumes gibt die Möglichkeit, den Staubabscheider für die Feu.erungsgase in dieser Ummantelung unterzubringen. Der Staubabscheider kann mechanisch oder elektrisch betrieben werden.The sheathing of the electrical system provided for in the main patent Precipitation area gives the possibility of the dust separator for the Feu.erungsgase to accommodate in this sheathing. The dust collector can be mechanical or electrical operate.

Claims (1)

PATE NTANSPRtcr-ir: i. Verfahren zur Verhütung von Staubzündungen und Explosionen bei der elektrischen Reinigung von Gasen mit entzündlichem Staub, insbesondere der Staubluft aus der Innenentstaubung von BraunkohlenbrIkettfabrIken, nach Patent 488 346, dadurch gekennzeichnet, daß der Staubgehalt der Feuerungsabgase, die dem zu reinigenden Gas beigemischt werden, dosiert wird dadurch, daß die Feuerungsabgase vor ihrem Eintritt in das elektrische Feld des Reinigers über einen Staubabscheider geleitet werden. z. Einrichtung für das Verfahren nach Anspruch i, dadurch gekennzeichnet, daß der Staubabscheider für die Feuerungsabgase in der den elektrischen Niederschlagsraum umgebenden Ummantelung untergebracht ist.PATE NTANSPRtcr-ir: i. Procedure for preventing dust ignition and explosions in electrical cleaning of gases with flammable Dust, in particular the dust air from the internal dedusting of lignite brick factories, according to patent 488 346, characterized in that the dust content of the furnace exhaust gases, which are mixed with the gas to be cleaned, is dosed by the fact that the furnace exhaust gases before entering the electrical field of the cleaner via a dust collector be directed. z. Device for the method according to claim i, characterized in that that the dust collector for the combustion gases in the electrical precipitation chamber surrounding sheath is housed.
DE1930523186D 1930-05-03 1930-05-03 Process and device to prevent dust ignition and explosions during electrical cleaning of gases with flammable dust Expired DE523186C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE523186T 1930-05-03

Publications (1)

Publication Number Publication Date
DE523186C true DE523186C (en) 1931-04-22

Family

ID=6551888

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930523186D Expired DE523186C (en) 1930-05-03 1930-05-03 Process and device to prevent dust ignition and explosions during electrical cleaning of gases with flammable dust

Country Status (1)

Country Link
DE (1) DE523186C (en)

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