DE254428C - - Google Patents

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Publication number
DE254428C
DE254428C DENDAT254428D DE254428DA DE254428C DE 254428 C DE254428 C DE 254428C DE NDAT254428 D DENDAT254428 D DE NDAT254428D DE 254428D A DE254428D A DE 254428DA DE 254428 C DE254428 C DE 254428C
Authority
DE
Germany
Prior art keywords
grate
air
channels
combustion
lower grate
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.)
Active
Application number
DENDAT254428D
Other languages
German (de)
Publication of DE254428C publication Critical patent/DE254428C/de
Active legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B50/00Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/02Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom
    • F23B50/06Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom the flue gases being removed downwards through one or more openings in the fuel-supporting surface
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B90/00Combustion methods not related to a particular type of apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B90/00Combustion methods not related to a particular type of apparatus
    • F23B90/04Combustion methods not related to a particular type of apparatus including secondary combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B2700/00Combustion apparatus for solid fuel
    • F23B2700/011Combustion apparatus for solid fuel with fuel shaft for steam boilers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die Erfindung bezieht sich auf Unterzugfeuerungen, bei welchen unter einem Hauptrost ein zweiter Rost angeordnet ist,. welcher die durch den ersten Rost hindurchfallenden Brennstoffstücke zur vollständigen Verbrennung bringt.The invention relates to girders, in which under a main grate a second grate is arranged. which those falling through the first grate Brings pieces of fuel to complete combustion.

Zwischen beiden Rosten liegt ein Feuerzug zur Ableitung der Heizgase in die Heizkanäle. Der untere Rost, der die durch den oberenA fire flue is located between the two grates to divert the hot gases into the heating ducts. The lower grate, the one through the upper one

ίο Rost hindurchfallenden Stücke zur Verbrennung bringen soll, erhält seine Luft nun aber nicht von unten durch die Roststäbe hindurch, sondern durch besondere Kanäle, die von oben her durchgeführt sind und an oder über der oberen Rostfläche beginnen. Es wird also ein Teil der zum oberen Rost gelangenden Verbrennungsluft durch diese Kanäle zum unteren Rost geleitet, und diese Luft wird durch den in Glut befindlichen Brennstoff des oberen Rostes und durch die heißen Kanalwandungen stark erhitzt, so daß trotz des Mangels einer unmittelbaren Luftzuführung (durch die Roststäbe hindurch) an dem unteren Rost eine vollständige Verbrennung erfolgt. Die Einrichtung ermöglicht auch bei engen Spalten des unteren· Roststabes eine weitgehende Verbrennung minderwertigen Brennstoffes, z. B. von Braunkohlen und Briketts. Dabei wird, die durch die besonderen Kanäle zugeführte erhitzte Verbrennungsluft dem unteren Rost nicht gefährlich, weil dieser von der Luft nicht unmittelbar getroffen und durch die auf ihm lagernde Ascheschicht noch besonders geschützt wird.ίο pieces of rust falling through to burn should bring, but does not get its air from below through the grate bars, but through special channels that are passed through from above and begin at or above the upper grate surface. It So part of the combustion air reaching the upper grate will pass through these channels to the lower grate, and this air is carried through the embers of the upper grate and the hot duct walls are strongly heated, so that despite the lack of an immediate air supply A complete combustion (through the grate bars) on the lower grate he follows. The device also enables the lower grate bar to have narrow gaps extensive combustion of inferior fuel, e.g. B. of lignite and briquettes. The heated combustion air supplied through the special channels is used the lower grate is not dangerous because it is not directly hit by the air and is particularly protected by the layer of ash lying on it.

Auf der Zeichnung ist in einem Schnitt ein Ausführungsbeispiel der neuen Feuerung dargestellt, welche für die Heizung von Braunkohlen und Briketts für Gliederkessel bestimmt ist.In the drawing, an embodiment of the new furnace is shown in a section, which is intended for heating lignite and briquettes for articulated boilers.

Aus einem Füllschacht α gelangt die Kohle allmählich nachsinkend auf den oberen Rost b, welcher, um eine Verschlackung zu verhüten, verhältnismäßig große Spaltöffnungen besitzt.The coal gradually descends from a hopper α and reaches the upper grate b, which, in order to prevent slagging, has relatively large stomata.

Die bei c eintretende Verbrennungsluft durchströmt die Kohlenschicht und den Rost und gelangt durch den Raum d in die Züge e. The combustion air entering at c flows through the coal layer and the grate and passes through space d into trains e.

Der Raum d wird unten von dem zweiten Rost f begrenzt, dessen Spaltöffnungen zweckmäßig derart eng ausgebildet werden, daß eine schützende Ascheschicht auf den Roststäben zurückgehalten wird.The space d is delimited at the bottom by the second grate f , the gap openings of which are expediently made so narrow that a protective layer of ash is retained on the grate bars.

In den zusammenzufügenden Gliedern des Kessels sind bei g Kanäle gebildet, welche in der Feuerfläche des oberen Rostes beginnen und erhitzte Sekundärluft über den unteren Rost f leiten.In the sections of the boiler to be joined, channels are formed at g , which begin in the fire surface of the upper grate and direct heated secondary air over the lower grate f.

Die durch die Spaltöffnungen des oberen Rostes b hindurchfallenden un verbrannt en Kohlenteile gelangen auf den Rost f und verbrennen auf diesem vollständig.The unburned coal particles falling through the gap openings in the upper grate b reach the grate f and burn completely on it.

Claims (1)

Patent-Anspruch:Patent claim: Unterzugfeuerung mit zwei übereinander liegenden Rosten und einem Feuerzug dazwischen, gekennzeichnet durch Kanäle (g) für die Zuführung der Verbrennungsluft aus dem oberen Feuerraum zum unteren Rost (f). Under-beam firing with two grids lying on top of one another and a flue between them, characterized by channels (g) for the supply of combustion air from the upper combustion chamber to the lower grate (f). Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT254428D Active DE254428C (en)

Publications (1)

Publication Number Publication Date
DE254428C true DE254428C (en)

Family

ID=512615

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT254428D Active DE254428C (en)

Country Status (1)

Country Link
DE (1) DE254428C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3125163A1 (en) * 1981-06-26 1983-01-13 Edgar 6412 Gersfeld Paul Furnace installation for combustion of solid fuels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3125163A1 (en) * 1981-06-26 1983-01-13 Edgar 6412 Gersfeld Paul Furnace installation for combustion of solid fuels
DE3125163C2 (en) * 1981-06-26 1991-01-24 Edgar 6412 Gersfeld De Paul

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