DE426096C - Combustion chamber with external cooling ducts for pulverized coal firing - Google Patents

Combustion chamber with external cooling ducts for pulverized coal firing

Info

Publication number
DE426096C
DE426096C DED46355D DED0046355D DE426096C DE 426096 C DE426096 C DE 426096C DE D46355 D DED46355 D DE D46355D DE D0046355 D DED0046355 D DE D0046355D DE 426096 C DE426096 C DE 426096C
Authority
DE
Germany
Prior art keywords
combustion chamber
pulverized coal
external cooling
coal firing
channels
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
DED46355D
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.)
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 DED46355D priority Critical patent/DE426096C/en
Application granted granted Critical
Publication of DE426096C publication Critical patent/DE426096C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, 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
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls

Landscapes

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

Description

Brennkammer mit äußeren Kühlkanälen für Kohlenstaubfeuerungen. Die Erfindung betrifft eine Brennkammer für Kohlenstaubfeuerungen, bei der gemäß der Erfindung die in bekannter Weise außen vorgesehenen Kühlkanäle als Trockenkanäle zum Vortrocknen des Brennmaterials ausgebildet sind. Zu diesem Zwecke werden die Kühlkanäle zweckmäßig geneigt angeordnet und enthalten eine Fördereinrichtung zur Förderung des Brennstoffes vom Eintritts- nach dem Austrittsende hin. In der Zeichnung ist die Erfindung in einem Ausführungsbeispiel dargestellt, und zwar zeigt Abb. F einen Schnitt gemäß Linie a-a der Abb. 2 durch die Kanäle einer Seitenwand, .Abb. 2 einen Querschnitt in kleinerem Maßstabe.Combustion chamber with external cooling channels for pulverized coal combustion. the The invention relates to a combustion chamber for pulverized coal combustion, in which according to the Invention the cooling channels provided outside in a known manner as drying channels are designed to pre-dry the fuel. For this purpose, the Cooling channels arranged appropriately inclined and contain a conveyor for Conveying the fuel from the inlet to the outlet end. In the drawing shows the invention in one embodiment, namely Fig. F shows a section along line a-a of Fig. 2 through the channels of a side wall, Fig. 2 shows a cross-section on a smaller scale.

In einer oder mehreren seitlichen Begrenzungswänden der Bremskammer sind schräg ansteigende Kanäle i vorgesehen, in denen eine oder mehrere Schüttelrutschen 2, die durch einen Antrieb 3 bewegt werden, untergebracht sind. Diese einzelnen Schüttelrutschen 2 können voneinander durch Wände q. getrennt sein, die gleichzeitig als Wärmeübertragungsmittel dienen. Den Schüttelrutschen wird das Material durch Zuteilschnecken 5 zugeführt. Das Austrittsende der Schüttelrutschen kann direkt über einem Brennstofftrichter 6 liegen, von dem es in die Mühle gelangt. Über und unter den Kanälen i sind in der üblichen Weise Kühlkanäle 7 vor,esehen, deren oberer Sammelkanal 8 an einem Saugstutzen eines Zusatzgebläses o. dgl. angeschlossen ist. Die Wirkungsweise ist ohne weiteres erklärlich. Das Material gelangt am oberen Ende auf die Schüttelrutschen 2 und wird durch diese allmählich nach unten bewegt, um am unteren Ende der Schüttelrutschen in den Trichter 6 zu fallen. Das Austrittsende wird zweckmäßig durch ein Gehäuse g eingek#tpselt, um den Durchzug von Luft zu verhindern, der Staubteile mit fortreißen könnte. Die Schwaden selbst können infolge der Schräglage der Kanäle ohne weiteres oben und durch einen Schornstein io über das Dach entweichen.In one or more lateral boundary walls of the brake chamber inclined channels i are provided in which one or more shaking chutes 2, which are moved by a drive 3, are accommodated. This individual Shaking chutes 2 can be separated from each other by walls q. be separated that at the same time serve as a heat transfer medium. The material gets through the shaking chutes Feeding screws 5 supplied. The exit end of the vibrating chutes can be direct lie above a fuel hopper 6 from which it enters the mill. About and under the channels i there are cooling channels 7 in the usual way, the upper one Collective channel 8 is connected to a suction port of an additional fan or the like. The way it works is easily explained. The material arrives at the top on the vibrating chutes 2 and is gradually moved downwards by these to fall into the funnel 6 at the lower end of the shaking chutes. The exit end is expediently encapsulated in a housing to prevent the passage of air, which could carry away dust particles. The swaths themselves can be due to the inclination of the canals easily escape above and through a chimney over the roof.

Claims (1)

PATENT-ANsPRÜcI3E: i. Brennkammer mit äußeren Kühlkanälen für Kohlenstaubfeuerungen, dadurch gekennzeichnet, daß ein Teil der die Brennkammer außen umgebenden Kühlkanäle als Trockenkanäle zum Vortrocknen des Brennmaterials ausgebildet ist. z. Brennkammer nach Anspruch i, dadurch gekennzeichnet, daß die Kanäle für die Brennstofftrocknung zweckmäßig geneigt angeordnet sind und eine Fördereinrichtung (z. B. Schüttelrutsche) zur Förderung des Brennstoffes enthalten. 3. Brennkammer nach Anspruch i und 2, dadurch gekennzeichnet, daß das Antriebsende der Trockenkanäle gegen Lufteintritt geschützt ist. PATENT CLAIMS: i. Combustion chamber with external cooling channels for pulverized coal firing, characterized in that some of the cooling channels surrounding the combustion chamber on the outside are designed as drying channels for pre-drying the fuel. z. Combustion chamber according to Claim i, characterized in that the channels for the fuel drying are expediently arranged inclined and contain a conveying device (e.g. shaking chute) for conveying the fuel. 3. Combustion chamber according to claim i and 2, characterized in that the drive end of the drying ducts is protected against the ingress of air.
DED46355D 1924-10-17 1924-10-17 Combustion chamber with external cooling ducts for pulverized coal firing Expired DE426096C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED46355D DE426096C (en) 1924-10-17 1924-10-17 Combustion chamber with external cooling ducts for pulverized coal firing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED46355D DE426096C (en) 1924-10-17 1924-10-17 Combustion chamber with external cooling ducts for pulverized coal firing

Publications (1)

Publication Number Publication Date
DE426096C true DE426096C (en) 1926-03-01

Family

ID=7049660

Family Applications (1)

Application Number Title Priority Date Filing Date
DED46355D Expired DE426096C (en) 1924-10-17 1924-10-17 Combustion chamber with external cooling ducts for pulverized coal firing

Country Status (1)

Country Link
DE (1) DE426096C (en)

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