DE429213C - Coal dust firing with several coal dust burners - Google Patents

Coal dust firing with several coal dust burners

Info

Publication number
DE429213C
DE429213C DEA42447D DEA0042447D DE429213C DE 429213 C DE429213 C DE 429213C DE A42447 D DEA42447 D DE A42447D DE A0042447 D DEA0042447 D DE A0042447D DE 429213 C DE429213 C DE 429213C
Authority
DE
Germany
Prior art keywords
coal dust
burners
several
firing
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
DEA42447D
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Priority to DEA42447D priority Critical patent/DE429213C/en
Application granted granted Critical
Publication of DE429213C publication Critical patent/DE429213C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D1/00Burners for combustion of pulverulent fuel

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

Description

Kohlenstaubfeuerung mit mehreren Kohlenstaubbrennern. Bei Feuerungen, besonders bei Kohl:enstaubfeuerungsanlagen, ist es erforderlich, daß der ganze Feuerraum gleichmäßig von den Feuergasen bestrichen wird. Man ordnet daher häufig mehrere K ohlenstaubbrenner nebeneinander an und versieht diese auch noch mit mehreren Zuführungsrohren zwischen dem Brenner und dem eigentlichen Feuerraum. Bei stark schwankendem Dampfverbrauch ist es nun nicht immer erforderlich, mehrere Brenner gleichzeitig in Betrieb zu haben, vielmehr wird häufig bei schwächerer Dampfentnahme die Aufrechterhaltung des Betriebes mit einem Brenner ausreichen. Um nun auch unter diesen Umständen eine möglichst gleichmäßige Verteilung der Feuergase im Feuerraum zu erreichen, sind nach der Erfindung die Zuführungsrohre zwischen zwei benachbarten Brennern und dem Feuerraum derart kreuzartig übereinandergelegt, daß die benachbarten Brennerdüsen fortlaufend abwechselnd den verschiedenen Brennein angehören. Eine solche Anordnung ist im besonderen dann, von Vorteil, wenn die Koblenstaubfeuerung als Zusatzfeuerung zu einer vorhandenen Rostfeuerung oder zu einer Gichtgasfeuerung verwendet werden soll. In diesen Fällen kommtsehr leicht ein recht großer Mengenunterschied zwischen der normalen und der höchsten Brennerleistung vor. Sollen aber normale Brenner beibehalten werden, so darf bei kleinster Staubmenge nur ein Brenner im Betriebe sein. Die Anordnung nach der Erfindung ermöglicht für diese Fälle die Verwendung normaler Brenner bei genügend gleichmäßiger Verteilung der 'Feuergase.Coal dust firing with several coal dust burners. In the case of furnaces, especially in the case of cabbage: dedusting systems, it is necessary that the entire combustion chamber is evenly smeared by the fire gases. Therefore, one often arranges several Coal dust burners next to each other and also provides them with several supply pipes between the burner and the actual combustion chamber. With strongly fluctuating steam consumption it is not always necessary to have several burners in operation at the same time have, rather, the maintenance is often with weaker steam extraction operation with one burner is sufficient. To now even under these circumstances a as even as possible distribution of the fire gases in the combustion chamber are to be achieved according to the invention, the supply pipes between two adjacent burners and the Combustion chamber placed one on top of the other in a crisscross manner that the adjacent burner nozzles continuously and alternately belong to the different Brennein. Such an arrangement is particularly advantageous if the cobblestone combustion is used as an additional combustion can be used with an existing grate furnace or with a furnace gas furnace target. In these cases, it is very easy to get quite a large difference in quantity the normal and the highest burner output. But should keep normal burners only one burner may be in operation with the smallest amount of dust. The order according to the invention enables the use of normal burners in these cases Sufficiently even distribution of the 'fire gases.

In der Zeichnung sind zwei Ausführungsbeispiele der Erfindung schematisch dargestellt. Der Feuerraum a (Abb. i) wird durch die beiden Brenner b und c beheizt. Zwischen den Brennern b und c und dem Feuerraum sind je zwei Zuführungsrohre cl und e bzw. f und g vorgesehen. Die Zuführungsrohre e .und f liegen kreuzweise übereinander, so daß der Kohlenstaub, auch wenn nur der Brenner c in Betrieb ist, durch die Zuführungsrohre f und g ziemlich gleichmäßig über den Feuerraum a verteilt wird. In Abb. a sind zur Beheizung des Feuerraumes ä wiederum zwei Brenner b und c vorgesehen. Jeder dieser Brenner b und c besitzt drei Zuführungsrohre d, e, h bzw. f, g, i zwischen dem Brenner und Feuerraum. Auch hier kreuzen sich die Zuführungsrohre e und h mit den Zuführungsrohren t und g, so daß auch hier der Vorteil einett gleichmäßigen Kohlenstaubverteilung in dem Feuerraum a gewährleistet wird.Two exemplary embodiments of the invention are shown schematically in the drawing. The combustion chamber a (Fig. I) is heated by the two burners b and c. Between the burners b and c and the combustion chamber, two feed pipes c1 and e or f and g are provided. The feed pipes e. And f are crossed one above the other, so that the coal dust, even when only the burner c is in operation, is distributed fairly evenly over the combustion chamber a through the feed pipes f and g. In Fig. A, two burners b and c are again provided for heating the combustion chamber. Each of these burners b and c has three supply pipes d, e, h and f, g, i between the burner and the combustion chamber. Here, too, the feed pipes e and h intersect with the feed pipes t and g, so that here too the advantage of a uniform distribution of coal dust in the furnace a is guaranteed.

Claims (1)

PATENT-ANSPRUCH: Kohlenstaubfeuerung mit mehreren Kohlenstaubbrennern, von denen jeder mehrere Brennerdüsen besitzt, dadurch gekennzeichnet, daß die Zuführungsrohre zu den Brennerdüsen sich derart kreuzen, daß die benachbarten Brennerdüsen fortlaufend abwechselnd den verschiedenen Brennern angehören. PATENT CLAIM: pulverized coal combustion with several pulverized coal burners, each of which has several burner nozzles, characterized in that the feed pipes to the burner nozzles intersect in such a way that the adjacent burner nozzles continuously alternate with the different burners.
DEA42447D Coal dust firing with several coal dust burners Expired DE429213C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA42447D DE429213C (en) Coal dust firing with several coal dust burners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA42447D DE429213C (en) Coal dust firing with several coal dust burners

Publications (1)

Publication Number Publication Date
DE429213C true DE429213C (en) 1926-05-19

Family

ID=6933093

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA42447D Expired DE429213C (en) Coal dust firing with several coal dust burners

Country Status (1)

Country Link
DE (1) DE429213C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941194C (en) * 1951-09-18 1956-04-05 Ver Kesselwerke Ag Switching of superheater pipes
DE1198832B (en) * 1956-05-12 1965-08-19 Siemens Ag Boiler tube assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941194C (en) * 1951-09-18 1956-04-05 Ver Kesselwerke Ag Switching of superheater pipes
DE1198832B (en) * 1956-05-12 1965-08-19 Siemens Ag Boiler tube assembly

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