DE560351C - Process for reducing the risk of explosion in the electrical dedusting of flammable or combustible dust particles containing gases of low intrinsic temperature - Google Patents

Process for reducing the risk of explosion in the electrical dedusting of flammable or combustible dust particles containing gases of low intrinsic temperature

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Publication number
DE560351C
DE560351C DEK106404D DEK0106404D DE560351C DE 560351 C DE560351 C DE 560351C DE K106404 D DEK106404 D DE K106404D DE K0106404 D DEK0106404 D DE K0106404D DE 560351 C DE560351 C DE 560351C
Authority
DE
Germany
Prior art keywords
explosion
risk
flammable
reducing
dust particles
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
DEK106404D
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.)
TELEX APPBAU GmbH
Original Assignee
TELEX APPBAU GmbH
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 TELEX APPBAU GmbH filed Critical TELEX APPBAU GmbH
Priority to DEK106404D priority Critical patent/DE560351C/en
Application granted granted Critical
Publication of DE560351C publication Critical patent/DE560351C/en
Expired legal-status Critical Current

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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
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B03C3/014—Addition of water; Heat exchange, e.g. by condensation

Landscapes

  • Electrostatic Separation (AREA)

Description

Verfahren zur Verminderung der Explosionsgefahr bei der elektrischen Entstaubung von entzündliche oder brennbare Staubteilchen enthaltenden Gasen niedriger Eigentemperatur Die Erfindung betrifft eine weitere Ausbildung des Verfahrens nach Patent 542 611 zur Verminderung der Explosionsgefahr bei der elektrischen Entstaubung von Gasen niedriger Eigentemperatur, die, wie z. B. die aus allen Fördereinrichtungen von Braunkohlenbrikettfabriken kommende Staubluft, entzündliche oder brennbare Staubteilchen enthalten. Das Wesen des Hauptpatentes besteht darin, daß die elektrisch zu reinigenden Gase, die für die planmäßige Aufnahme von zusätzlicher Feuchtigkeit zu trocken sind, schon vor ihrem Einleiten in die Elektrofilterkammer erwärmt und mit Feuchtigkeit angereichert werden, wobei die Anfeuchtung in Abhängigkeit von der Entzündbarkeit des Staubes in einem solchen Ausmaß erfolgen soll, daß eine Sättigung des Gases nicht erreicht wird.Process to reduce the risk of explosion in electrical Dust removal from gases containing flammable or combustible dust particles is lower Intrinsic temperature The invention relates to a further development of the method according to Patent 542 611 to reduce the risk of explosion in electrical dedusting of gases of low intrinsic temperature, such as B. those from all funding agencies Dusty air coming from lignite briquette factories, flammable or combustible dust particles contain. The essence of the main patent is that the electrically cleaned Gases that are too dry to absorb additional moisture as planned, heated and with moisture even before they are introduced into the electrostatic precipitator chamber can be enriched, the moistening depending on the flammability of the dust to such an extent that a saturation of the gas is not achieved.

Bei dem im Hauptpatent beschriebenen Ausführungsbeispiel wird das Staubluftgemisch vor seinem Einlassen in die Elektrofilterkammer beispielsweise über einen Heizkörper geleitet und dadurch vorgewärmt und darauf angefeuchtet. Statt nun Vorwärmung und Anfeuchtung des Gases nacheinander erfolgen zu lassen, wird gemäß der vorliegenden Erfindung Anwärmung und Befeuchtung des Gases gleichzeitig vorgenommen. Zu diesem Zweck werden dem elektrisch zu reinigenden Gas vor oder bei seinem Eintritt in das elektrische Feld heiße, mit Feuchtigkeit beladene Abgase aus Feuerstätten, z. B. aus Dampfkesselfeuerungen, zugeführt. Die Befeuchtung der heißen Abgase kann durch Einleitung von Dampf oder Wasser erreicht werden. Der Grad der erforderlichen Erwärmung und Befeuchtung des Gases läßt sich ohne weiteres leicht abstimmen.In the embodiment described in the main patent Dust mixture before it is let into the electrostatic precipitator chamber, for example passed over a radiator and thereby preheated and then moistened. Instead of to let preheating and moistening of the gas take place one after the other, according to the present invention made heating and humidification of the gas simultaneously. For this purpose, the gas to be cleaned electrically before or at its entry hot, moisture-laden exhaust gases from fireplaces in the electrical field, z. B. from steam boiler furnaces supplied. The humidification of the hot exhaust gases can can be achieved by introducing steam or water. The degree of required The heating and humidification of the gas can be easily adjusted without further ado.

Bei der Durchführung des Verfahrens nach der Erfindung erspart man eine besondere Wärmequelle für die Vorwärmung des Gases und erreicht außerdem noch den Vorteil, daß die in den Kesselabgasen vßrhandene Kohlensäure den Sauerstoffgehalt des Gesamtgemisches und damit seine Explosionsfähigkeit herabmindert.When carrying out the method according to the invention one saves a special heat source for preheating the gas and also achieved the advantage that the carbon dioxide present in the boiler exhaust gases reduces the oxygen content of the overall mixture and thus its explosive properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Verminderung der Explosionsgefahr bei der elektrischen Entstaubung von entzündliche oder brennbare Staubteilchen enthaltenden Gasen niedriger Eigentemperatur, im besonderen von aus allen Fördereinrichtungen von Braunkohlenbrikettfabrikeri kommender Staubluft nach Patent 542 611, dahin abgeändert, daß das Gas vor oder bei seinem Eintritt in das elektrische Feld durch Einführung von heißen, mit Feuchtigkeit beladenen Abgasen aus Feuerstätten, z. B. Dampfkesselfeuerungen, angewärmt und gleichzeitig angefeuchtet wird. PATENT CLAIM: Process for reducing the risk of explosion in the electrical dedusting of flammable or combustible dust particles containing gases of low intrinsic temperature, in particular of dust air coming from all conveyors of lignite briquette factories according to patent 542 611, so that the gas before or during its entry into the electrical Field by introducing hot, moisture-laden flue gases from fireplaces, e.g. B. Steam boiler, is heated and humidified at the same time.
DEK106404D 1926-05-11 1926-05-11 Process for reducing the risk of explosion in the electrical dedusting of flammable or combustible dust particles containing gases of low intrinsic temperature Expired DE560351C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK106404D DE560351C (en) 1926-05-11 1926-05-11 Process for reducing the risk of explosion in the electrical dedusting of flammable or combustible dust particles containing gases of low intrinsic temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK106404D DE560351C (en) 1926-05-11 1926-05-11 Process for reducing the risk of explosion in the electrical dedusting of flammable or combustible dust particles containing gases of low intrinsic temperature

Publications (1)

Publication Number Publication Date
DE560351C true DE560351C (en) 1932-10-01

Family

ID=7240914

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK106404D Expired DE560351C (en) 1926-05-11 1926-05-11 Process for reducing the risk of explosion in the electrical dedusting of flammable or combustible dust particles containing gases of low intrinsic temperature

Country Status (1)

Country Link
DE (1) DE560351C (en)

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