DE393345C - Device for mixing fuel and primary air in pulverized coal firing - Google Patents

Device for mixing fuel and primary air in pulverized coal firing

Info

Publication number
DE393345C
DE393345C DEV16539D DEV0016539D DE393345C DE 393345 C DE393345 C DE 393345C DE V16539 D DEV16539 D DE V16539D DE V0016539 D DEV0016539 D DE V0016539D DE 393345 C DE393345 C DE 393345C
Authority
DE
Germany
Prior art keywords
fuel
pulverized coal
primary air
coal firing
mixing fuel
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
DEV16539D
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.)
Arcelor Luxembourg SA
Original Assignee
Arbed SA
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 Arbed SA filed Critical Arbed SA
Priority to DEV16539D priority Critical patent/DE393345C/en
Application granted granted Critical
Publication of DE393345C publication Critical patent/DE393345C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2203/00Feeding arrangements
    • F23K2203/008Feeding devices for pulverulent fuel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Description

Vorrichtung zum mischen von Brennstoff und Primärluft bei Kohlenstaubfeuerungen. Es ist eine Kohlenstaubfeuerung vorgeschlagen worden, bei welcher ein vollkommenes Gemisch von Kohlenstaub und Luft verwendet und die Luft so stark erhitzt wird, daß der Brennstoff schon vor der Düse teilweise entgast wird. Die Durchführung dieses Verfahrens erfordert eine sehr vollkommene Vorrichtung zum Mischen des Brennstoffes mit der Primärluft, und eine solche Vorrichtung bildet den Gegenstand der vorliegenden Erfindung. Die Vorrichtung ist beispielsweise in der. Zeichnung veranschaulicht, von der Abb. i einen senkrechten Schnitt und Abb. a einen Querschnitt durch die Linie A-A der Abb. i darstellt.Device for mixing fuel and primary air in pulverized coal firing. A pulverized coal furnace has been proposed in which a perfect Mixture of coal dust and air is used and the air is heated so much that the fuel is partially degassed before the nozzle. Carrying out this The process requires a very sophisticated device for mixing the fuel with the primary air, and such a device forms the subject of the present invention Invention. The device is for example in the. Drawing illustrates from Fig. i a vertical section and Fig. a a cross section through the Line A-A of Figure i represents.

a ist ein Fülltrichter zur Aufnahme des gepulverten Brennstoffes. An diesen schließt sich ein geräumiger, in der Abbildung im wesentlichen - kegelförmiger Rotationskörper b an, der den Mischraum bildet. Die Öffnung zwischen dem Mischrauim und dem Fülltrichter ist bis auf einen engen, regelbaren Schlitz durch einen langsam drehbaren, geriffelten Kegel o. dgl. c abgeschlossen. Der Brennstoffstaub wird daher in Form einer dünnwandigen Röhre in den Mischraum gestreut.a is a filling funnel for receiving the powdered fuel. This is followed by a spacious one, which in the picture is essentially conical Rotary body b, which forms the mixing space. The opening between the mixed room and the hopper is except for a narrow, adjustable slot completed by a slowly rotating, fluted cone or the like. c. The fuel dust is therefore scattered into the mixing space in the form of a thin-walled tube.

Der Mischraum ist von einem zweiten Mantel d, dl umgeben; in den Zwischenraum e wird erhitzte Luft geleitet, die durch ein Drosselventil f in den Mantelraum e1 und von da durch schief gestellte Schlitze g in den Mischraum b gelangt. In diesem erzeugt die schief zum Umfange eintretende Luft eine gleichmäßige Wolke des Brennstoffstaubes, die dann durch eine Doppeldüse i nach der Verbrennungsstelle geführt wird. Die zur Speisung der Düse dienende Druckluft tritt durch die Leitung hin den Mantelraum e und wird durch ein Drosselventil Z geregelt. m, m sind Explosionsventile.The mixing space is surrounded by a second jacket d, dl; Heated air is passed into the space e, which passes through a throttle valve f into the shell space e1 and from there through slits g placed at an angle into the mixing space b. The air entering at an angle creates a uniform cloud of fuel dust, which is then guided through a double nozzle i to the combustion point. The compressed air used to feed the nozzle enters the jacket space e through the line and is regulated by a throttle valve Z. m, m are explosion valves.

Kohle und Luft werden ununterbrochen zugeführt. Der Mischraum b ist als Autoklau gestaltet, so daß im. Innern ein Überdruck bestehen kann, ohne daß dadurch die zwangläufige Beschickung mit Kohlenstaub gestört wird. .Coal and air are supplied continuously. The mixing space b is designed as a car theft, so that im. Inside an overpressure can exist without thereby the inevitable charging with coal dust is disturbed. .

Claims (1)

PATENT-AN SPRUCfi: Vorrichtung zum Mischen von Brennstoff und Primärluft bei Kohlenstaubfeuerungen, dadurch gekennzeichnet, daß der durch einen ringförmigen Schlitz als Staubröhre in der Achsrichtung eines geräumigen Rotationskörpers eingeführte Brennstoff durch die tangential einstreichende Luft in eine gleichmäßige Staubwolke verteilt wird, welches Gemisch durch die Saugdüse der Verbrennungsstelle zugeführt wird, wobei der Rotationskörper mit einem Mantel versehen ist, der die Erhitzung bis zur beginnenden Vergasung des Brennstoffes gestattet. PATENT-AN SPRUCfi: Device for mixing fuel and primary air in pulverized coal firing systems, characterized in that the fuel introduced through an annular slot as a dust tube in the axial direction of a spacious rotating body is distributed into a uniform dust cloud by the tangentially sweeping air, which mixture is distributed through the Suction nozzle is fed to the combustion point, the rotating body being provided with a jacket that allows heating until the fuel begins to gasify.
DEV16539D 1921-05-27 1921-05-27 Device for mixing fuel and primary air in pulverized coal firing Expired DE393345C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV16539D DE393345C (en) 1921-05-27 1921-05-27 Device for mixing fuel and primary air in pulverized coal firing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV16539D DE393345C (en) 1921-05-27 1921-05-27 Device for mixing fuel and primary air in pulverized coal firing

Publications (1)

Publication Number Publication Date
DE393345C true DE393345C (en) 1924-04-08

Family

ID=7575727

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV16539D Expired DE393345C (en) 1921-05-27 1921-05-27 Device for mixing fuel and primary air in pulverized coal firing

Country Status (1)

Country Link
DE (1) DE393345C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107876B (en) * 1954-12-23 1961-05-31 Steinmueller Gmbh L & C Process for the economical combustion of difficult to burn, dust-like fuels
DE1225334B (en) * 1959-11-20 1966-09-22 Steinmueller Gmbh L & C Method and device for operating furnaces with baking coal dust
DE2945064A1 (en) * 1979-11-08 1981-05-14 Ruhrkohle Ag, 4300 Essen Burner pulverised fuel inlet - has immersion pipe protruding into fluidised bed and acting as metering device
EP0063629A1 (en) * 1981-04-29 1982-11-03 Ruhrkohle-Carborat GmbH Coal dust supply
EP0130316A1 (en) * 1983-05-13 1985-01-09 Ruhrkohle-Carborat GmbH Pneumatic coal dust-feeding device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107876B (en) * 1954-12-23 1961-05-31 Steinmueller Gmbh L & C Process for the economical combustion of difficult to burn, dust-like fuels
DE1225334B (en) * 1959-11-20 1966-09-22 Steinmueller Gmbh L & C Method and device for operating furnaces with baking coal dust
DE2945064A1 (en) * 1979-11-08 1981-05-14 Ruhrkohle Ag, 4300 Essen Burner pulverised fuel inlet - has immersion pipe protruding into fluidised bed and acting as metering device
EP0063629A1 (en) * 1981-04-29 1982-11-03 Ruhrkohle-Carborat GmbH Coal dust supply
EP0130316A1 (en) * 1983-05-13 1985-01-09 Ruhrkohle-Carborat GmbH Pneumatic coal dust-feeding device

Similar Documents

Publication Publication Date Title
DE393345C (en) Device for mixing fuel and primary air in pulverized coal firing
EP0201671B1 (en) Nozzle for the pneumatic introduction of solids
DE974850C (en) Burner for a soot oven
DE508648C (en) Process and device for coking dust-shaped baking coal
DE407246C (en) Method and device for mixing pulverized fuels with air and introducing the same into the melting zone of blast furnaces
DE1146215B (en) Soot furnace
DE452460C (en) Heavy-duty engine with mixing and ignition chamber
DE335867C (en) Rotary drum
DE735810C (en) Method and device for burning cement and similar goods in suspension
DE403495C (en) Burners for gaseous or liquid fuel
DE765384C (en) Feeding device for pneumatic dryer
DE299991C (en)
DE417182C (en) Burners for dusty fuels
DE525077C (en) Process for the production of a uniform mixture in powder form, for example substances suitable for cement preparation
DE919732C (en) Ignition burner for pulverized coal firing
DE679049C (en) Loading and distribution device for shaft ovens, in particular gas generators
DE338432C (en) Device for evenly distributing ore u. Like. From bunkers in Moellergefaesse
DE551152C (en) Method and device for producing foam for fire-extinguishing purposes
DE374380C (en) Firing for liquid fuels with conical air supply housing
DE616012C (en) Device for the production of a pulverulent, hydraulic binder containing bituminous constituents
DE481758C (en) Device for swirling and for separating and re-evaporation of non-gasified parts of fuel-air mixtures, in particular charge mixtures from gasification machines
DE363298C (en) Method and device for the combustion of dust-like fuels
DE419765C (en) Device for mixing gas with dusty or powdery substances
AT77010B (en) Briquetting method.
DE878476C (en) Device for distributing the fuel in shaft furnaces