DE571914C - Steam boiler for coal dust u. like. Firings - Google Patents

Steam boiler for coal dust u. like. Firings

Info

Publication number
DE571914C
DE571914C DEK110700D DEK0110700D DE571914C DE 571914 C DE571914 C DE 571914C DE K110700 D DEK110700 D DE K110700D DE K0110700 D DEK0110700 D DE K0110700D DE 571914 C DE571914 C DE 571914C
Authority
DE
Germany
Prior art keywords
steam boiler
fuel
air
bands
combustion chamber
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
DEK110700D
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.)
Fried Krupp Germaniawerft AG
Original Assignee
Fried Krupp Germaniawerft AG
Publication date
Priority to DEK110700D priority Critical patent/DE571914C/en
Application granted granted Critical
Publication of DE571914C publication Critical patent/DE571914C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23MCASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00Casings; Linings; Walls
    • F23M5/08Cooling thereof; Tube walls

Landscapes

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

Description

Dampfkessel für Kohlenstaub- u. dgl. Feuerungen Das Hauptpatent betrifft eine Kohlenstaubfeuerung für Dampfkessel mit absteigender Flamme und einem mit wasserberührten Flächen versehenen Brennraum, in dem Brennstoff und Luft unmittelbar nach ihrem Eintritt verwirbelt werden, wobei die Einführung von Brennstoff und Luft in den oberen Teil des Brennraumes derart erfolgt, daß sich an dieser Stelle ein um eine waagerechte Achse drehender Wirbel bildet. Die vorliegende Erfindung hat eine zweckmäßige Weiterausbildung einer solchen Kohlenstaubfeuerung zum Gegenstand. Der Brennstoff und die Verbrennungsluft werden in abwechselnd übereinanderliegenden flachen gleichgerichteten Bändern in den Brennraum eingeführt und gleichsam aufeinander aufgewickelt. Zur Unterstützung der guten Durchmischung können diese abwechselnd übereinanderliegenden Bänder durch gegen die Fläche der äußeren Bänder gerichtete Luftstrahlen ineinandergedrückt werden.Steam boilers for pulverized coal and similar furnaces one pulverized coal furnace for steam boilers with a descending flame and one with water-contact Flats provided combustion chamber, in which fuel and air immediately after their Swirled inlet, with the introduction of fuel and air into the upper part of the combustion chamber takes place in such a way that at this point there is a horizontal axis rotating vortex forms. The present invention has a useful one Further training of such a pulverized coal furnace is the subject. The fuel and the combustion air are rectified in alternately superimposed flat Ribbons introduced into the combustion chamber and wound up on top of one another, as it were. To the These can be placed alternately on top of each other to support good mixing Bands are pressed into one another by jets of air directed against the surface of the outer bands will.

Auf der Zeichnung ist der Erfindungsgegenstand in den Abb. i und 2 in einem Ausführungsbeispiel dargestellt.The subject of the invention is shown in Figs. 1 and 2 of the drawing shown in one embodiment.

Einem Steilrohrkessel A ist ein Brennraum B vorgelagert, der beispielsweise in zwei Teilbrennräume bx und b2 unterteilt ist. Im oberen Teil der Brennräume br und b2 wird durch die Kanäle C der Brennstoff, z. B. Brennstaub nebst Förderluft, in Form flacher Bänder D etwas schräg aufwärts gerichtet eingeführt. Zwischen den Kanälen C .befinden sich Kanäle F, durch welche mindestens ein Teil der Verbrennungsluft durch Ansaugung oder mittels eines Gebläses ebenfalls in. Form flacher Bänder F in die Brennräume eingeführt wird. Die übereinanderliegenden flachen Bänder D und F werden dann zur Abwärtsbewegung durch die Brennräume bi und b' nach unten umgelenkt, wodurch ihre Vermischung herbeigeführt wird. Durch die in der Decke G des Brennraumes befindlichen Kanäle H werden Luftstrahlen gegen die Fläche der Bänder D und F gerichtet, die die Bänder schon im Beginn der Umlenkung ineinanderdrücken und dadurch die Vermischung unterstützen.A steep-tube boiler A is preceded by a combustion chamber B, which for example is divided into two partial combustion chambers bx and b2. In the upper part of the combustion chambers br and b2 is through the channels C the fuel, z. B. fuel dust plus conveying air, introduced in the form of flat bands D directed slightly obliquely upwards. Between Channels C. There are channels F, through which at least part of the combustion air by suction or by means of a fan also in the form of flat bands F is introduced into the combustion chambers. The superimposed flat bands D and F are then deflected downwards through the combustion chambers bi and b 'for downward movement, whereby their mixing is brought about. Through the one in the ceiling G of the combustion chamber located channels H, air jets are directed against the surface of the bands D and F, which press the bands into one another at the beginning of the deflection and thereby the mixing support.

Da die Ausführung der Kanäle C mit langgestreckt rechteckigem Querschnitt für die Herstellung ungünstig und die gleichmäßige Verteilung des Brennstaubes in solchen Kanälen ungewiß ist, werden die Bachen Bänder von Brennstoff und Luft zweckmäßig aus Einzelstrahlen gebildet, die aus in einer Reihe nebeneinandexliegendenöffnungenci austreten, denen das Gemisch aus Brennstoff und Förderluft von einer Verteilungsvorrichtung aus durch Rohrleitungen I( zugeführt wird.Because the execution of the channels C with an elongated rectangular cross-section unfavorable for the production and the even distribution of the fuel dust in such channels are uncertain, the streams become bands of fuel and air expedient formed from individual beams, which from in a row juxtaposed openings ci exit, which the mixture of fuel and conveying air from a distribution device is supplied from through pipes I (.

Die dargestellten Wege für Brennstoff und Verbrennungsluft können auch miteinander vertauscht werden, also das Ineinanderdrükken der flachen Bänder auch durch Brennstoffstrahlen bewirkt werden:The paths shown for fuel and combustion air can can also be interchanged, i.e. the pressing of the flat bands into one another can also be caused by fuel jets:

Claims (3)

PATENTANSPRÜCHE: i. Dampfkessel für Kohlenstaub- u. dgl. Feuerungen nach Patent 556 647 mit einem senkrecht abwärts geführten schachtförmigen Verbrennungsraum, bei welchem Brennstoff und Luft in eine Vorkammer eingeführt und darin um eine waagerechte Achse verwirbelt werden, dadurch gekennzeichnet, daß der Brennstoff und die Verbrennungsluftin abwechselnd übereinanderliegenden flachen gleichgerichteten Bändern in den Brennraum eingeführt und gleichsam aufeinander aufgewickelt werden. PATENT CLAIMS: i. Steam boiler for pulverized coal and similar furnaces according to Patent 556 647 with a vertically downwardly guided shaft-shaped combustion chamber, in which fuel and air are introduced into an antechamber and swirled around a horizontal axis therein, characterized in that the fuel and the combustion air alternately lie one above the other flat, rectified strips are introduced into the combustion chamber and wound onto one another, as it were. 2. Dampfkessel nach Anspruch i, dadurch gekennzeichnet, daß die abwechselnd übereinanderliegenden Bänder durch gegen die Fläche der äußeren Bänder gerichtete Luftstrahlen ineinandergedrückt werden. 2. Steam boiler according to claim i, characterized in that the alternately superimposed bands through air jets directed against the surface of the outer bands are forced into one another. 3. Dampfkessel nach Anspruch i und 2, dadurch gekennzeichnet, daß die flachen Bänder durch Einzelstrahlen gebildet werden, die aus in einer Reihe nebeneinanderliegenden Öffnungen austreten.3. Steam boiler according to claim i and 2, characterized in that the flat strips are formed by individual beams, which are made up of juxtaposed in a row Exit openings.
DEK110700D Steam boiler for coal dust u. like. Firings Expired DE571914C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK110700D DE571914C (en) Steam boiler for coal dust u. like. Firings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK110700D DE571914C (en) Steam boiler for coal dust u. like. Firings

Publications (1)

Publication Number Publication Date
DE571914C true DE571914C (en) 1933-03-07

Family

ID=7242035

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK110700D Expired DE571914C (en) Steam boiler for coal dust u. like. Firings

Country Status (1)

Country Link
DE (1) DE571914C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755083C (en) * 1938-06-16 1952-01-31 Kohlenscheidungsgesellschaft M Radiant steam boiler fired with coal dust with discharge of slag in a liquid state
DE902770C (en) * 1949-10-28 1954-01-28 Babcock & Wilcox Dampfkessel W Dust firing for melting chamber boiler
DE1147000B (en) * 1961-12-15 1963-04-11 Babcock & Wilcox Dampfkessel Burner firing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755083C (en) * 1938-06-16 1952-01-31 Kohlenscheidungsgesellschaft M Radiant steam boiler fired with coal dust with discharge of slag in a liquid state
DE902770C (en) * 1949-10-28 1954-01-28 Babcock & Wilcox Dampfkessel W Dust firing for melting chamber boiler
DE1147000B (en) * 1961-12-15 1963-04-11 Babcock & Wilcox Dampfkessel Burner firing

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