DE378070C - Methods for preventing explosions - Google Patents

Methods for preventing explosions

Info

Publication number
DE378070C
DE378070C DEJ22625D DEJ0022625D DE378070C DE 378070 C DE378070 C DE 378070C DE J22625 D DEJ22625 D DE J22625D DE J0022625 D DEJ0022625 D DE J0022625D DE 378070 C DE378070 C DE 378070C
Authority
DE
Germany
Prior art keywords
explosions
wires
methods
preventing explosions
furnace
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
DEJ22625D
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.)
ELEKTROTHERMISCHE METALLGESELL
FRANZ JURETZKA DIPL ING
Original Assignee
ELEKTROTHERMISCHE METALLGESELL
FRANZ JURETZKA DIPL ING
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 ELEKTROTHERMISCHE METALLGESELL, FRANZ JURETZKA DIPL ING filed Critical ELEKTROTHERMISCHE METALLGESELL
Priority to DEJ22625D priority Critical patent/DE378070C/en
Application granted granted Critical
Publication of DE378070C publication Critical patent/DE378070C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/02—Working-up flue dust
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Description

Verfahren zum Verhüten von Explosionen. Bei jenen metallurgischen Öfen, bei deren Betrieb Kohlenoxydmetalldampfgemische oder andere Gase erzeugt werden, die mit Sauerstoff explosible Gasgemische bilden können, besteht die Gefahr, daß insbesondere bei Ofenstillständen oder bei unregelmäßigem Ofengange durch Zutritt oxydierender Gase, in erster Linie natürlich Luft, sei es aus dein Prozeß selbst, oder infolge undichter Stellen cler Ofenapparatur u. dgl. Explosionen entstehen.Methods for preventing explosions. With those metallurgical ones Furnaces that produce mixtures of carbon monoxide and metal vapor or other gases when they are in operation, which can form explosive gas mixtures with oxygen, there is a risk that especially in the event of furnace shutdowns or irregular furnace cycles due to access oxidizing gases, primarily air, of course, be it from your process itself, or explosions occur as a result of leaks in the furnace equipment and the like.

Die Bildung solcher explosibler Gasgemische erfolgt gewöhnlich folgendermaßen.The formation of such explosive gas mixtures usually takes place as follows.

Der Ofen geht irrregelmäßig, die Ofenapparatur wird kälter, die Abgase gelangen 1<iilil in die Kondensationsvorrichtung, Wasch-oder andere Türme; an Stelle des sonst in diesen Apparaten herrschenden schwachen Llrberdrucks oder Atmosphärendrucks tritt ein Unterdruck auf, so daß diese Gase zunächst stagnieren und dann atmosphärische Luft nachsangen. Sobald dann die Explosionsgrenze der 'Mischung mit Luft erreicht ist, bedarf es nur eines Funkens der wieder regelmäßig arbeitenden Ofenapparatur, um die Explosion auszulösen.The furnace runs irregularly, the furnace equipment gets colder, the exhaust gases 1 <iilil get into the condensation device, washing or other towers; at Place of the weak pressure or atmospheric pressure that otherwise prevails in these apparatuses a negative pressure occurs, so that these gases first stagnate and then atmospheric Sang in the air. As soon as the explosive limit of the mixture with air is reached all that is needed is a spark from the furnace apparatus, which is regularly working again, to cause the explosion.

Die Erfindung ist bestimmt, diesen L'belstand zu beseitigen. Zu diesem Zwecke werrien an verschiedenen Stellen der Ofenapparatur Drähte angeordnet, die glühend erhalten «-erden, und sich bildende explosible Gemische ofort heim Entstehen entzünden und somit ungefährlich machen.The invention is intended to eliminate this situation. To this For this purpose, wires are arranged at various points on the furnace apparatus Maintained glowing earth, and explosive mixtures are formed immediately when they arise ignite and thus make it harmless.

An Stelle von Drähten, zu deren in Gluterhalten in erster Linie elektrische Widerstandsbeheizung dient, können auch andere, ähnlich wirkende Vorrichtungen, z. B.. Funkenstrekken, Verwendung finden.Instead of wires, which are mainly used in embers Resistance heating is used, other, similarly acting devices, z. B. Spark gaps, find use.

Die Drähte bestehen z. B. aus Nickelin oder Chroninlclcel oder aus Eisendraht oder anderem geeigneten Material je nach der Zündungstemperatur der betreffenden Gase.The wires consist e.g. B. from nickel or Chroninlclcel or from Iron wire or other suitable material depending on the ignition temperature of the relevant Gases.

Die Einbettung erfolgt zweckmäßigerweise in den Ofenwänden in Asbest bzw. als Asbestkabel usw.; die Isolierglocken werden aus Hartäsbest oder anderem geeigneten Material hergestellt. Zum Schutz gegen Anhäufung von Fremdkörpern auf den Drähten empfiehlt sich die Anbringung von dachähnlichen Kappen oberhalb der Drähte.The embedding is expediently carried out in the furnace walls in asbestos or as an asbestos cable, etc .; the insulating bells are made of hard asbestos or something else suitable material. To protect against the accumulation of foreign objects For the wires, it is advisable to attach roof-like caps above the Wires.

Die Drähte werden von Zeit zu Zeit durch Abklopfen der äußeren Teile oder auf andere geeignete Weise gereinigt.The wires are tapped from time to time by tapping the outer parts or cleaned in some other suitable manner.

Es ist bekannt, explosible Gasgemenge dadurch unschädlich zu machen, daß man sie vorzeitig zur Anzündung bringt, und zwar sind zu diesem Zwecke brennende Zündflaminen und feuerfeste Gitter vorgeschlagen worden.It is known that explosive gas mixtures can be rendered harmless by that they are kindled prematurely, and for this purpose they are burning Ignition flames and refractory grids have been proposed.

Solche Anordnungen sind jedoch bei dem Betriebe metallurgischer Ofen, und zwar insbesondere solcher, bei denen Flugaschen und Stäube gebildet «-erden, unverwendbar, weil sich solche Gitter hierdurch sehr bald abnutzen und verschmutzen und dadurch ihre Wirksninkeit verlieren.Such arrangements are, however, in the operations of metallurgical furnaces, and in particular those in which fly ash and dust are formed unusable because such grids wear out and get dirty very quickly and thereby lose their effectiveness.

Claims (2)

PATENTANSPRÜCHE: 1. Verfahren zum Verhüten von Explosionen, insbesondere beim Betriebe metallurgischer Ofen, dadurch gekennzeichnet, (1a13 an den Stellen der ',Apparatur, hei denen die @liigliclikeit der Bildung explo- siver Gasgeiüische'vörhänaen ist, ein über die l#.ntziiiidun,teitiperattir dieser Gase erhitzter Draht, Vunkenstrecke oder ähn- lich wirkende Vorrichtung angeordnet ist, wodurch die (rase gleich beim Entstehen
zur Verbrennung gebracht und unschädlich gemacht «-erden. PATENT CLAIMS: 1. A method for preventing explosions, in particular when operating metallurgical furnaces, characterized in that, (1a13 at the places of the 'apparatus, he to whom the @liigliclikeity of education siver Gasgeiüische'vörhänaen is, one over the l # .ntziiiidun, teitiperattir of these gases heated wire, spark gap or similar Lich acting device is arranged, whereby the (rush as soon as it arises
brought to incineration and rendered harmless «- earth. 2. Verfahren zum Verhüten von Explosionen, insbesondere beine Betriebe metallurgischer Üfen, dadurch gekennzeichnet, dali die Drähte durch dachähnliche Kappen vor Verschmutzung geschützt «erden.2. Method of contraception of explosions, especially in the case of metallurgical plants, characterized in that, so that the wires are protected from contamination by roof-like caps.
DEJ22625D 1922-04-28 1922-04-28 Methods for preventing explosions Expired DE378070C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEJ22625D DE378070C (en) 1922-04-28 1922-04-28 Methods for preventing explosions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ22625D DE378070C (en) 1922-04-28 1922-04-28 Methods for preventing explosions

Publications (1)

Publication Number Publication Date
DE378070C true DE378070C (en) 1923-07-06

Family

ID=7201062

Family Applications (1)

Application Number Title Priority Date Filing Date
DEJ22625D Expired DE378070C (en) 1922-04-28 1922-04-28 Methods for preventing explosions

Country Status (1)

Country Link
DE (1) DE378070C (en)

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