DE476026C - Shut-off device for the coal supply in dished grate firing - Google Patents

Shut-off device for the coal supply in dished grate firing

Info

Publication number
DE476026C
DE476026C DEE37254D DEE0037254D DE476026C DE 476026 C DE476026 C DE 476026C DE E37254 D DEE37254 D DE E37254D DE E0037254 D DEE0037254 D DE E0037254D DE 476026 C DE476026 C DE 476026C
Authority
DE
Germany
Prior art keywords
shut
coal supply
dished
grate
grate firing
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
DEE37254D
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.)
ENZINGER UNION GES fur WAERME
Original Assignee
ENZINGER UNION GES fur WAERME
Publication date
Priority to DEE37254D priority Critical patent/DE476026C/en
Application granted granted Critical
Publication of DE476026C publication Critical patent/DE476026C/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
    • F23K2203/002Feeding devices for steam boilers, e.g. in locomotives

Landscapes

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

Description

Absperrvorrichtung für die Kohlenzufuhr bei muldenrostfeuerungen Gegenstand der Erfindung ist eine Absperrvorrichtung für die Kohlenzufuhr von Muldenrostfeuerungen, bei der in die zum Rost führenden Kanäle Absperrvorrichtungen eingebaut sind.Shut-off device for the coal supply for trough grate firing object the invention is a shut-off device for the supply of coal to troughed grate furnaces, in which shut-off devices are installed in the ducts leading to the grate.

Bei Muldenrostfeuerungen muß man bei längeren Betriebsstillständen entweder den Bunker leer fahren oder aber den Rauchschieber ein wenig offen stehen lassen. In beiden Fällen entstehen erhebliche Wärmeverluste. Es ist nun bereits vorgeschlagen worden, in die Zuführungsschächte Absperrmittel einzubauen, die der Wärmestrahlung aus dem Feuerraum weniger ausgesetzt sind. Diese werden jedoch immer noch so stark erwärmt, daß die Kohle oberhalb derselben zu schwelen anfängt und die Schwelgase in das Kesselhaus gelangen, wenn nicht der Rauchschieber ein wenig geöffnet wird, um den Feuerraum zu kühlen und etwaige Schwelgase abzusaugen.In the case of hollow grate firing, you have to do this for longer periods of standstill either empty the bunker or keep the smoke valve a little open permit. In both cases there is considerable heat loss. It is now already have been proposed to build shut-off means in the feed shafts, which the Are less exposed to thermal radiation from the combustion chamber. However, these always will still heated so much that the coal above it begins to smolder and the smoldering gases get into the boiler house, if not the smoke slide a little is opened to cool the combustion chamber and to suck out any carbonization gases.

Gemäß der Erfindung werden die Kohlenabsperrmittel. als hohle, luftgekühlte Schieber ausgebildet, die auf der der Kohle zugekehrten Seite mit Öffnungen versehen sind, um die Schwelgase abzusaugen.According to the invention, the coal shut-off means. as hollow, air-cooled Formed slide, which is provided on the side facing the coal with openings are to suck off the carbonization gases.

In der Zeichnung ist eine Ausführungsform der Erfindung dargestellt, und zwar zeigt Abb. i einen O_uerschnitt durch eine Muldenrostfeuerung, Abb. 2 einen Längsschnitt durch ein Absperrmittel.In the drawing, an embodiment of the invention is shown, namely Fig. i shows a cross section through a troughed grate furnace, Fig. 2 shows a Longitudinal section through a barrier.

Die Muldenrostfeuerung besteht aus den beiden Brennkammern i und 2, unter denen die Roste 3 liegen. Die Brennstoffzufuhr erfolgt durch die Kanäle q., 5 und 6 aus dem Bunkerraum 7. In die Kanäle q., 5 und 6 sind Absperrmittel 8 in Gestalt von Rundschiebern eingebaut, die so hoch in den Kanälen q., 5 und 6 liegen, daß die strahlende Wärme aus den Brennkammern i und a nur noch in geringem Maße zur Wirkung kommen kann. Sind bei Stillsetzung des Kessels die Kanäle 4, 5 und 6 leer gefahren und ist der Rauchschieber vollkommen geschlossen, so wirkt die Wärme allmählich doch auf die Absperrmittel 8 ein, diese können sich so weit erwärmen, daß die über denselben liegende Kohle allmählich zu schwelen anfängt.The troughed grate consists of the two combustion chambers i and 2, under which the grids 3 are located. The fuel is supplied through channels q., 5 and 6 from the bunker room 7. In the channels q., 5 and 6 shut-off means 8 in Built in the shape of round slides, which are so high in the channels q., 5 and 6, that the radiant heat from the combustion chambers i and a is only minimal can come into effect. Are channels 4, 5 and 6 run empty and the smoke damper is completely closed, this is how the heat works gradually on the shut-off means 8, they can heat up to the point where that the coal lying over them gradually begins to smolder.

Um dies zu vermeiden, werden die Absperrmittel als gekühlte Schieber ausgebildet (Abb.2). Die Absperrmittel sind hohle Segmente 9, die an jedem Ende eine Scheibe io tragen, mittels deren sie in Gehäusen i i drehbar gelagert sind. Um ein Verdrehen der Schieber bei sehr großen Baulängen zu vermeiden, besitzt jede Scheibe io einen Zahnkranz 12, in welchen Ritzel 13 eingreifen, die auf einer bis ins Freie sich erstreckenden Welle 1.4 sitzen. Das nach außen liegende Gehäuse i i besitzt einen einstellbaren Einlaß 16, während das hintere Gehäuse an einen Kanal 17 angeschlossen ist, der mit dem Kamin hinter dem Absperrschieber in Verbindung steht, so daß bei stillgesetztem Kessel stets Luft durch die Schiebersegmente streicht und dieselben kühlt. Um etwa entstehende Gase abzusaugen, werden die der überlagernden Kohle zugekehrten Seiten der Segmentschieber mit Öffnungen versehen.In order to avoid this, the shut-off means are used as a cooled slide trained (Fig.2). The shut-off means are hollow segments 9 at each end wear a disk io, by means of which they are rotatably mounted in housings i i. In order to prevent the slide from twisting in the case of very large overall lengths, each has Washer io a ring gear 12, in which pinion 13 engage, which on one to sitting in the open extending shaft 1.4. The exterior housing i i has an adjustable inlet 16, while the rear housing adjoins a channel 17 is connected, which is connected to the chimney behind the gate valve so that when the boiler is shut down, air is always drawn through the slide segments and cools them. In order to suck off any gases that may arise, those of the superimposed The sides of the segment slide facing the coal are provided with openings.

Claims (1)

PATENTANSPRUCH: Absperrvorrichtung für die Kohlenzufuhr bei Muldenrostfeuerungen mit in den Zuführungskanälen zum Rost angeordneten Absperrmitteln, dadurch gekennzeichnet, daß die Absperrmittel (9) hohl ausgebildet und an ihrer in der Schließlage dem Brennstoff zugekehrten Seite mit Öffnungen versehen sind, so daß ein durch die Absperrmittel geführter Luft= strom gleichzeitig die Kühlung derselben und das Absaugen etwaiger Schwelgase aus dem Bunker bewirkt. PATENT CLAIM: Shut-off device for the coal supply in hollow grate firing systems with shut-off means arranged in the feed channels to the grate, characterized in that the shut-off means (9) are hollow and are provided with openings on their side facing the fuel in the closed position, so that a through the shut-off means Air = stream simultaneously causes the cooling of the same and the suction of any carbonization gases from the bunker.
DEE37254D Shut-off device for the coal supply in dished grate firing Expired DE476026C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE37254D DE476026C (en) Shut-off device for the coal supply in dished grate firing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE37254D DE476026C (en) Shut-off device for the coal supply in dished grate firing

Publications (1)

Publication Number Publication Date
DE476026C true DE476026C (en) 1929-05-10

Family

ID=7078051

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE37254D Expired DE476026C (en) Shut-off device for the coal supply in dished grate firing

Country Status (1)

Country Link
DE (1) DE476026C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063313B (en) * 1954-07-09 1959-08-13 Wilhelm Mueller Chute firing with lower combustion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063313B (en) * 1954-07-09 1959-08-13 Wilhelm Mueller Chute firing with lower combustion

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