DE547032C - Method and device for the return of gas dust in blast furnaces - Google Patents

Method and device for the return of gas dust in blast furnaces

Info

Publication number
DE547032C
DE547032C DEG78387D DEG0078387D DE547032C DE 547032 C DE547032 C DE 547032C DE G78387 D DEG78387 D DE G78387D DE G0078387 D DEG0078387 D DE G0078387D DE 547032 C DE547032 C DE 547032C
Authority
DE
Germany
Prior art keywords
return
dust
blast furnaces
furnace shaft
gas dust
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
DEG78387D
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.)
Gutehoffnungshuette AG
Original Assignee
Gutehoffnungshuette AG
Publication date
Priority to DEG78387D priority Critical patent/DE547032C/en
Application granted granted Critical
Publication of DE547032C publication Critical patent/DE547032C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/002—Evacuating and treating of exhaust gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Blast Furnaces (AREA)

Description

Verfahren und Vorrichtung zur Rückführung von Gichtstaub in Hochöfen Die Erfindung bezieht sich auf die Rückführung des mit den Hochofengasen an der Gicht entweichenden und daraus abgeschiedenen Gichtstaubes in den Ofenschacht. Es ist hierfür eine Vorrichtung bekannt, um den aus besonderen Abscheidern rückfallenden Staub oberhalb des Gichtverschlusses in dem Beschickungstrichter anzusammeln undjeweils zusammen mit der Gicht in den Ofenschacht aufzugeben. Hierbei fällt der Gichtstaub bei seinem Eintritt in den Ofenschacht an den Gasaustrittsöffnungen für das Gichtgas vorbei und wird von den abströmenden Ofengasen zum großen Teil wieder in den Gasabzug mitgerissen.Method and device for recycling gas dust in blast furnaces The invention relates to the return of the blast furnace gases to the Gout escaping and thus separated gout dust into the furnace shaft. It a device is known for this purpose to prevent the falling back from special separators To collect dust above the top of the top in the feed hopper and each time together with the gout to give up in the furnace shaft. This is where the gout dust falls when it enters the furnace shaft at the gas outlet openings for the furnace gas passes and is largely returned to the gas exhaust by the outflowing furnace gases carried away.

Dieser Nachteil wird beim Gegenstand der Erfindung vermieden, indem die Rückführungsrohre für den Gichtstaub unterhalb der Gichtabzugsrohre unmittelbar in den Hochofenschacht eingeführt sind, so daß der in den Abscheidern niedergeschlagene Lichtstaub selbsttätig in das Ofenschachtinnere abfließt und ohne Verluste durch die absinkende Beschickungssäule mit nach unten genommen wird.This disadvantage is avoided in the subject matter of the invention by the return pipes for the flue dust immediately below the flue outlet pipes are introduced into the blast furnace shaft, so that the precipitated in the separators Light dust flows automatically into the inside of the furnace shaft and passes through without losses the descending feed column is taken down with it.

Eine beispielsweise für die Ausübung des Verfahrens gezeichnete Vorrichtung ist in Abb. I im senkrechten Schnitt und in Abb. 2 im Schnitt nach A-B in Abb. I dargestellt. An der Gicht des nur mit seinem oberen Teil veranschaulichten Ofenschachtes a sind die Gasabzugsrohre b angebracht und mit den zum Niederschlagen des im Gichtgas enthaltenen Staubes dienenden Gasreinigern c verbunden. Letztere haben einen trichterartigen oder schrägen Boden d, der durch eine Leitung e mit dem Innern des Ofenschachtes Verbindung hat.A device drawn, for example, for carrying out the method is in Fig. I in vertical section and in Fig. 2 in section A-B in Fig. I. shown. On the gout of the furnace shaft, which is only shown with its upper part a, the gas exhaust pipes b are attached and with the to precipitate the in the furnace gas contained dust serving gas purifiers c connected. The latter have a funnel-like shape or sloping floor d, which is connected to the interior of the furnace shaft by a line e Connection has.

Zum Abschluß der Leitungen e gegen ein unmittelbares Eindringen der Gase vom Ofenschacht aus in die Reiniger dienen Klappen f o. dgl., solange sich nicht Gichtstaub in solcher Menge angesammelt hat, daß dieser den 4bschluß herbeiführt.At the end of the lines e against direct penetration of the Gases from the furnace shaft into the cleaner are used for flaps f or the like, as long as there is has not collected gout dust in such an amount that it brings about the conclusion.

Claims (2)

PATENTANSPRÜCI3E: t. Verfahren zur Rückführung von Gichtstaub in Hochöfen, dadurch gekennzeichnet, daß der niedergeschlagene Lichtstaub unterhalb der Gasabzugsrohre unmittelbar selbsttätig in das Ofenschachtinnere abfließt. PATENT CLAIMS: t. Process for recirculating flue dust in blast furnaces, characterized in that the precipitated light dust is below the gas exhaust pipes flows automatically and directly into the inside of the furnace shaft. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch I, dadurch gekennzeichnet, daß in der Verbindungsleitung zwischen dem Gasreiniger und dem Ofenschacht eine Sperrvorrichtung, z. B. eine Rückschlagklappe, angeordnet ist.2. Device for implementation of the method according to claim I, characterized in that in the connecting line between the gas cleaner and the furnace shaft a locking device, for. B. a non-return valve, is arranged.
DEG78387D Method and device for the return of gas dust in blast furnaces Expired DE547032C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG78387D DE547032C (en) Method and device for the return of gas dust in blast furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG78387D DE547032C (en) Method and device for the return of gas dust in blast furnaces

Publications (1)

Publication Number Publication Date
DE547032C true DE547032C (en) 1932-04-02

Family

ID=7136653

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG78387D Expired DE547032C (en) Method and device for the return of gas dust in blast furnaces

Country Status (1)

Country Link
DE (1) DE547032C (en)

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