DE493817C - Firing process with preheating of the combustion air using flue gases, in particular for heating wet fuels on stair grates or mechanical grates - Google Patents

Firing process with preheating of the combustion air using flue gases, in particular for heating wet fuels on stair grates or mechanical grates

Info

Publication number
DE493817C
DE493817C DEA49328D DEA0049328D DE493817C DE 493817 C DE493817 C DE 493817C DE A49328 D DEA49328 D DE A49328D DE A0049328 D DEA0049328 D DE A0049328D DE 493817 C DE493817 C DE 493817C
Authority
DE
Germany
Prior art keywords
grates
grate
combustion air
preheating
stair
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
DEA49328D
Other languages
German (de)
Inventor
Iwan Arbatsky
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.)
STOCKHOLMS PRIVAT AB
Original Assignee
STOCKHOLMS PRIVAT AB
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 STOCKHOLMS PRIVAT AB filed Critical STOCKHOLMS PRIVAT AB
Priority to DEA49328D priority Critical patent/DE493817C/en
Application granted granted Critical
Publication of DE493817C publication Critical patent/DE493817C/en
Expired 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
    • 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
    • F23B90/06Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere

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)
  • Incineration Of Waste (AREA)
  • Air Supply (AREA)

Description

Feuerungsverfahren mit Vorwärmung der Verbrennungsluft durch Feuergase, insbesondere zur Verheizung nasser Brennstoffe auf Treppenrosten oder mechanischen Rosten Bei der Verbrennung von Brennstoffen gemäß dem Hauptpatent werden über dem Rost Heizgase, und zwar vorzugsweise die einen hohen Luftüberschuß. enthaltenden Gase des Rostendes, abgesaugt und der durch den Treppenrost oder mechanisch bewegten Rost streichenden Verbrennungslift zugemischt, während die wasserdampfhaltigen ---Gase des Rostanfanges gesondert abgeführt werden.Firing process with preheating of the combustion air by means of flue gases, especially for heating wet fuels on stepped gratings or mechanical ones Rusting When burning fuels according to the main patent, above Grate heating gases, preferably with a high excess of air. containing Gases from the end of the grate, sucked off and those moved through the step grate or mechanically Rust-brushing incineration lift mixed in, while the steam-containing gases the start of the grate must be removed separately.

Gemäß der Erfindung soll dieses Verfahren dadurch verbessert werden, daß die am hinteren Rostende abgesaugten lufthaltigen Heizgase, nötigenfalls mit Luftzumischung, nur dein vorderen Rostteil als Verbrennungsluft zugeführt werden, während der übrige Feuerungsteil nicht oder niedriger vorerwärmte Verbrennungsluft erhält. Der Vorteil dieses Verfahrens besteht darin, daß auch mit feuchtem Brennstoff hohe Feuerungstemperaturen erreicht werden können, ohne daß an irgendeiner Stelle der Rost übermäßig erhitzt wird. Außerdem wird eine besonders kräftige Vortrocknung des auf den Rost gelangenden Brennstoffes erreicht, weil die vom hinteren Rostende abgesaugten heißen Gase zum überwiegenden Teil aus heißer Luft mit nur geringem Rauchgasgehalt bestehen und auf den Vortrocknungsteil des Rostes konzentriert werden, so daß sie besonders stark trocknend wirken, ohne irgendwelche schädliche -Nebenwirkungen zu ergeben.According to the invention, this method is to be improved by that the air-containing hot gases sucked off at the rear end of the grate, if necessary Air admixture, only the front grate part is supplied as combustion air, while the remaining part of the furnace is not or less preheated combustion air receives. The advantage of this method is that even with moist fuel high furnace temperatures can be reached without at any point the grate is excessively heated. In addition, there is a particularly vigorous pre-drying of the fuel reaching the grate, because that from the rear end of the grate extracted hot gases for the most part from hot air with only a small amount Smoke gas content and be concentrated on the pre-drying part of the grate, so that they have a particularly strong drying effect, without any harmful side effects to surrender.

Die Zeichnung veranschaulicht die Erfindung am Ausführungsbeispiele einer Wanderrost-Kesselfeuerung, und zwar im Längsschnitt.The drawing illustrates the invention using exemplary embodiments a traveling grate boiler, in a longitudinal section.

Unter dem üblichen feuerfesten Gewölbe 2, 3 der Feuerung ist ein Wanderrost 4 auf Rollen 5 leicht herausrollbar gelagert, (lern durch einen Fülltrichter 6 der Brennstoff zugeführt wird. Durch ein Gebläse io wird der durch eine Ouerwand von dem übrigen Rost abgeteilten vorderen Rostkaminer mittels der Leitung i i ein Luftgemisch zugeführt, das aus Heizgasen besteht, die in der üblichen Weise durch den Kanal 1:2, 13 vorn Rostende abgesaugt werden, und aus Luft, die durch die Leitung 14 angesaugt wird. Eine Klappe 15 an der Verbindungsstelle des Kanals 13 und der Leitung rd. dient in bekannter Art zur Regelung des Gemisches. Die dampfhaltigen, aus dem Brennstoff entweichenden Gase am Rostanfang werden durch einen Abführungskanal 16 abgeführt und können somit nicht an die Kesselheizflächen gelangen, so daß Kondensation der Wasserdämpfe an diesen Flächen und unerwünschte Abkühlung der Heizgase vermieden ist. Der Kanal 16 kann entweder unmittelbar oder unter Hindurchleitung durch irgendwelche Wärmeaustauscher an den Schornstein angeschlossen werden. Ein Kanal 17 leitet die Verbrennungsluft dem Übrigen Rostteil zu. Dieser Kanal kann mit Vorrichtungen zum Anwärmen der Verbrennungsluft ausgerüstet sein, so daß die Luft mit einer gewünschten Temperatur zugeführt werden kann.A traveling grate 4 is easily rolled out on rollers 5 under the usual refractory vaults 2, 3 of the furnace, (learn the fuel is fed through a filling funnel 6 Line ii is supplied with an air mixture consisting of heating gases that are sucked off in the usual way through duct 1: 2, 13 at the end of the grate, and of air that is sucked in through line 14. A flap 15 at the junction of duct 13 The steam-containing gases escaping from the fuel at the start of the grate are discharged through a discharge channel 16 and thus cannot reach the boiler heating surfaces, so that condensation of the water vapors on these surfaces and undesired cooling The channel 16 can either directly or by passing through any The heat exchanger can be connected to the chimney. A duct 17 guides the combustion air to the rest of the grate part. This duct can be equipped with devices for heating the combustion air so that the air can be supplied at a desired temperature.

Ist die Feuerung im Betriebe, so wird die mittlere Feuerungstemperatur einerseits durch die getrennte Abführung der Wasserdämpfe mittels des Kanals 16 und anderseits durch das Absaugen der Luftüberschußgase aus der hinteren Rostzone mittels des Kanals I2 gesteigert. Dabei kommen die Luftüberschußgase mit voller Ausnutzung ihres Wärmegehalts durch die Kanäle i 3 und r i dem vordersten Rostteil als Vortrocknungsluft und vorgewärmte Verbrennungsluft wieder zugute.If the furnace is in operation, the mean furnace temperature is on the one hand by the separate removal of the water vapors by means of the channel 16 and on the other hand by sucking off the excess air gases from the rear grate zone increased by means of channel I2. The excess air gases come with full Utilization of their heat content through the channels i 3 and r i the foremost grate part as pre-drying air and preheated combustion air.

Claims (1)

PATENTANSPRUCH: Feuerungsverfahren mit Vorwärmung der Verbrennungsluft durch Feuergase, insbesondere zur Verheizung nasser Brennstoffe auf Treppenrosten oder mechanischen Rosten, nach Patent 418 710, dadurch gekennzeichnet, daß die von dem Rostende abgesaugten, einen Luftüberschuß enthaltenden Heizgase zusammen mit der in ihnen enthaltenen oder ihnen beigemischten Luft nur der vorderen Kammer eines mehrzonigen Rostes zugeführt werden, während die hintere Rostkammer mit wenig oder nicht erwärmter Verbrennungsluft gespeist wird.PATENT CLAIM: Firing process with preheating of the combustion air by fire gases, especially for heating wet fuels on stair gratings or mechanical grids, according to patent 418 710, characterized in that the from the end of the grate sucked off, containing an excess of air together with the air contained in them or admixed with them only the anterior chamber of one multi-zone grate, while the rear grate chamber with little or unheated combustion air is fed.
DEA49328D 1926-11-20 1926-11-20 Firing process with preheating of the combustion air using flue gases, in particular for heating wet fuels on stair grates or mechanical grates Expired DE493817C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA49328D DE493817C (en) 1926-11-20 1926-11-20 Firing process with preheating of the combustion air using flue gases, in particular for heating wet fuels on stair grates or mechanical grates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA49328D DE493817C (en) 1926-11-20 1926-11-20 Firing process with preheating of the combustion air using flue gases, in particular for heating wet fuels on stair grates or mechanical grates

Publications (1)

Publication Number Publication Date
DE493817C true DE493817C (en) 1930-03-14

Family

ID=6936809

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA49328D Expired DE493817C (en) 1926-11-20 1926-11-20 Firing process with preheating of the combustion air using flue gases, in particular for heating wet fuels on stair grates or mechanical grates

Country Status (1)

Country Link
DE (1) DE493817C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006117579A1 (en) * 2005-05-02 2006-11-09 FOCK, József Method and apparatus for gasifying and burning pellets made from herbaceous plants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006117579A1 (en) * 2005-05-02 2006-11-09 FOCK, József Method and apparatus for gasifying and burning pellets made from herbaceous plants

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