DE919732C - Ignition burner for pulverized coal firing - Google Patents

Ignition burner for pulverized coal firing

Info

Publication number
DE919732C
DE919732C DED430D DED0000430D DE919732C DE 919732 C DE919732 C DE 919732C DE D430 D DED430 D DE D430D DE D0000430 D DED0000430 D DE D0000430D DE 919732 C DE919732 C DE 919732C
Authority
DE
Germany
Prior art keywords
pulverized coal
coal firing
ignition burner
ignition
muffle
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
DED430D
Other languages
German (de)
Inventor
Carl Schoeter
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.)
Deutsche Babcock and Wilcox Dampfkesselwerke AG
Original Assignee
Deutsche Babcock and Wilcox Dampfkesselwerke 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 Deutsche Babcock and Wilcox Dampfkesselwerke AG filed Critical Deutsche Babcock and Wilcox Dampfkesselwerke AG
Priority to DED430D priority Critical patent/DE919732C/en
Application granted granted Critical
Publication of DE919732C publication Critical patent/DE919732C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
    • F23C2700/06—Combustion apparatus using pulverized fuel
    • F23C2700/063—Arrangements for igniting, flame-guiding, air supply in

Landscapes

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

Description

Die Erfindung betrifft einen Zündbrenner für Kohlenstaubfeuerungen nach Patent 881 715 und besteht darin, daß im Austrittsende der Staubdüse ein Prallring eingesetzt isst.The invention relates to a pilot burner for pulverized coal combustion according to patent 881 715 and consists in that a baffle ring is inserted into the outlet end of the dust nozzle.

Bei der Zündfeuerung gemäß dem Hauptpatent soll die Staubluft nur durch das axiale Düsenrohr in die Zündmuffel geblasen werden, während tangential nur Luft zugeführt wird. Um die Zündung zu erleichtern, wird vorgeschlagen, in die Staubdüse einen Prallring einzusetzen. Dieser bewirkt eine Kreiswirbelung des austretenden Staubluftstromes um kreisförmige Achsen, deren Ebenen senkrecht zur Muffelachse liegen, und bewirkt dadurch eine Vermischung mit der Tangentialluft, welche die Zündung erleichtert.With the ignition according to the main patent, the dust air should only be blown through the axial nozzle tube into the ignition muffle, while tangentially only air is supplied. To facilitate ignition, it is suggested to go into the Dust nozzle to use a baffle ring. This causes a circular vortex of the exiting Dust air flow around circular axes, the planes of which are perpendicular to the muffle axis lying, and thereby causes a mixing with the tangential air, which the Ignition facilitated.

Ein gemäß der Erfindung ausgebildeter Brenner ist in Abb. i im Querschnitt, von der Feuerseite gesehen, in A11. 2 im axialen Längsschnitt dargestellt.A burner designed according to the invention is shown in Fig. I in cross section, seen from the fire side, in A11. 2 shown in axial longitudinal section.

In die Seitenwand des. Brennraumes i, welche aus einer feuerfesten Schicht 2 und einer Schicht roten Mauerwerkes 3 besteht und mit einem Blechmantel q. umgeben ist, ist die Zündmuffel eingesetzt. Siebesteht aus dem kreiszylindrischen Blechmantel 5, der mittels des Flansches 6 an der Blechverkleidung 4 befestigt ist. Er ist mit einer ringförmigen feuerfesten Ausmauerung 7 versehen und nach außen durch einen Deckel 8 abgeschlossen, der an dem Flansch g befestigt ist. Auch der Deckel 8 ist mit feuerfester Masse io verkleidet.In the side wall of the combustion chamber i, which consists of a refractory Layer 2 and a layer of red brickwork 3 and with a sheet metal jacket q. is surrounded, the ignition muffle is used. It consists of the circular cylindrical Sheet metal jacket 5, which is fastened to sheet metal cladding 4 by means of flange 6. It is provided with an annular refractory lining 7 and to the outside closed by a cover 8 which is attached to the flange g. Also the Cover 8 is covered with refractory mass io.

In die Muffel münden nahe dem Deckel zwei reget- und absperrbare Luftzuführungen i i tangential ein. Das Brennstaub-Luft-Gemisch wird durch ein Rohr 12 reget- und absperrbar dem Umlenkstück 13 zugeführt, dessen Stutzen 14 den Muffeldeckel io axial durchdringt. In diesem Stutzen befindet sich das mittels einer Zugstange 15 axial verschiebbare Düsenrohr 16, in das zur Durchwirbelungdes Staub-Luft-Gemisches eineschraubenförmige Leitfläche 17 eingesetzt ist. Der Deckel wird noch durchbrochen von der mit Stopfen i8 verschließbaren Schau- und Zündöffnung ig. Auf der Austrittsseite ist die Muffel durch einen Ring 20 verengt. In das Düsenrohr 16 ist an dessen Austritt ein Prallring 21 eingesetzt.Two adjustable and lockable air inlets open into the muffle near the cover i i tangentially. The fuel dust-air mixture is regulated through a pipe 12 and lockable fed to the deflection piece 13, the nozzle 14 of which the muffle cover io axially penetrates. In this connection piece is located axially by means of a pull rod 15 displaceable nozzle tube 16, into which a screw-shaped nozzle pipe 16 is inserted for swirling through the dust-air mixture Guide surface 17 is used. The lid is broken through by the one with the stopper i8 lockable inspection and ignition opening ig. The muffle is on the exit side narrowed by a ring 20. In the nozzle tube 16 is a baffle ring at its outlet 21 used.

Claims (1)

PATENTANSPRUCH: Zündbrenner für Kohlenstaubfeuerungen nach Patent 88i 715, dadurch gekennzeichnet, daß im Austrittsende der Staubdüse (16) ein Prallring (21) eingesetzt ist. Angezogene Druckschriften: Deutsche Patentschriften Nr. 562 322, 571 o51.PATENT CLAIM: Pilot burner for pulverized coal firing according to patent 88i 715, characterized in that a baffle ring in the outlet end of the dust nozzle (16) (21) is inserted. Referred publications: German Patent Specifications No. 562 322, 571 o51.
DED430D 1941-02-15 1941-02-15 Ignition burner for pulverized coal firing Expired DE919732C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED430D DE919732C (en) 1941-02-15 1941-02-15 Ignition burner for pulverized coal firing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED430D DE919732C (en) 1941-02-15 1941-02-15 Ignition burner for pulverized coal firing

Publications (1)

Publication Number Publication Date
DE919732C true DE919732C (en) 1954-11-02

Family

ID=7028714

Family Applications (1)

Application Number Title Priority Date Filing Date
DED430D Expired DE919732C (en) 1941-02-15 1941-02-15 Ignition burner for pulverized coal firing

Country Status (1)

Country Link
DE (1) DE919732C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081948B (en) * 1957-08-30 1960-05-19 Allis Chalmers Mfg Co Electric circuit breaker
EP0028861A1 (en) * 1979-11-12 1981-05-20 Technisch Advies-en Handelsbureau Toverco B.V. A burner for burning pulverized fuel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562322C (en) * 1930-02-12 1932-11-04 Arthur Docking Burner for powdered fuel
DE571051C (en) * 1929-11-12 1933-02-25 Chapman & Co Ltd Burners for dusty fuels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE571051C (en) * 1929-11-12 1933-02-25 Chapman & Co Ltd Burners for dusty fuels
DE562322C (en) * 1930-02-12 1932-11-04 Arthur Docking Burner for powdered fuel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081948B (en) * 1957-08-30 1960-05-19 Allis Chalmers Mfg Co Electric circuit breaker
EP0028861A1 (en) * 1979-11-12 1981-05-20 Technisch Advies-en Handelsbureau Toverco B.V. A burner for burning pulverized fuel

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