DE3400979A1 - Fuel for a fluidised-bed furnace - Google Patents

Fuel for a fluidised-bed furnace

Info

Publication number
DE3400979A1
DE3400979A1 DE19843400979 DE3400979A DE3400979A1 DE 3400979 A1 DE3400979 A1 DE 3400979A1 DE 19843400979 DE19843400979 DE 19843400979 DE 3400979 A DE3400979 A DE 3400979A DE 3400979 A1 DE3400979 A1 DE 3400979A1
Authority
DE
Germany
Prior art keywords
fluidised
lignite
fuel
coal
bituminous coal
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.)
Withdrawn
Application number
DE19843400979
Other languages
German (de)
Inventor
Heribert Dipl.-Ing. 4390 Gladbeck Dewert
Heinrich Ing.(grad.) 4600 Dortmund Gresch
Heinz Dipl.-Ing. Hölter
Heinrich Dipl.-Ing. 4390 Gladbeck Igelbüscher
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19843400979 priority Critical patent/DE3400979A1/en
Publication of DE3400979A1 publication Critical patent/DE3400979A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/002—Fluidised bed combustion apparatus for pulverulent solid fuel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

In order to be able to use a very cheap and nevertheless highly suitable high-performance fuel for the operation of fluidised-bed technologies, it is proposed according to the invention to mix bituminous coal with lignite in order to produce a suitable fuel material in this way without ballast materials such as sand or additional ash. The mixing of lignite and bituminous coal such as, for example, bituminous coal having a net calorific value of 7500 thermal units and lignite having a calorific value of, for example, 2000 thermal units, is very suitable for operating optimised fluidised-bed furnaces from economic viewpoints.

Description

Beschreibung und Erläuterung zur PatentanmeldungDescription and explanation of the patent application

"Brennstoff für Wirbelbettfeuerung" Es ist bekannt, daß Wirbelbettfeuerungen in Asche-oder Sandbetten zweckdienlichst betrieben werden."Fuel for fluidized bed combustion" It is known that fluidized bed combustion be operated most expediently in beds of ash or sand.

Ballastkohle garantiert die Voraussetzung eines genügend hohen Ballastgehaltes, um das Wirbelbett mit größtmöglichem Ausbrand und somit Wirkungsgrad zu ermöglichen.Ballast coal guarantees the requirement of a sufficiently high ballast content, to enable the fluidized bed with the greatest possible burnout and thus efficiency.

In größeren Entfernungen vom Kohleproduzenten, d.h.At greater distances from the coal producer, i.e.

dort, wo der Transport der Ballastkohle aufgrund des niedrigen Heizwertes der Ballastkohle den Einsatz dieser Kohle nicht mehr wirtschaftlich ermöglicht, muß für das Betreiben einer umweltfreundlichen Wirbelbett-Technologie hochwertige Kohle mit Sand- oder Aschebettvorlage verwandt werden.where the ballast coal is transported due to its low calorific value the ballast coal no longer enables this coal to be used economically, must be of high quality in order to operate environmentally friendly fluidized bed technology Coal can be used with a sand or ash bed template.

Um einen sehr preiswerten und dennoch gut geeigneten Hochleistungsbrennstoff für das Betreiben von Wirbelbett-Technologien nutzen zu können, wird erfindungsgemäß vorgeschlagen, Steinkohle mit Braunkohle zu vermischen, um dadurch ohne Ballaststoffe, wie Sand oder zusätzliche Asche, ein geeignetes Brennmaterial herzustellen. Das Mischen von Braun- und Steinkohle mit z.B. Steinkohle mit einem HU-Wert von 7500 WE und Braunkohle mit einem Heizwert von z.B. 2000 WE ist bestens geeignet, um optimale Wirbelbettfeuerungen unter wirtschaftlichen Gesichtspunkten zu betreiben.A very inexpensive, yet well suited, high-performance fuel To be able to use for operating fluidized bed technologies is according to the invention proposed to mix hard coal with lignite in order to avoid fiber, such as sand or additional ash to produce a suitable fuel. That Mixing lignite and hard coal with e.g. hard coal with an HU value of 7500 WE and lignite with a calorific value of e.g. 2000 WE is ideally suited to optimal To operate fluidized bed firing from an economic point of view.

Hinzukommt, daß die Braunkohle durch das Zumischen von Steinkohle aufgrund der hohen Zündwilligkeit der Steinkohle im Wirbelbett-Schlummerzustand die Gewähr gibt, daß beim Zeitintervall "Anfahren" das Wirbelbett bedarfsgerecht zündwillig zur Verfügung steht.In addition, the brown coal is produced by adding hard coal due to the high ignitability of hard coal in the fluid bed slumber state this ensures that the fluidized bed is as required during the "start-up" time interval is readily available.

Patentanpruch: Patent claim:

Claims (1)

Patentanspruch: Brennstoff für Wirbelbettfeuerungstechnologien dadurch gekennzeichnet, daß Steinkohle Anwendung findet, die mit Braunkohle als Ballaststoff versetzt ist.Claim: fuel for fluidized bed combustion technologies thereby characterized in that hard coal is used with brown coal as dietary fiber is offset.
DE19843400979 1984-01-13 1984-01-13 Fuel for a fluidised-bed furnace Withdrawn DE3400979A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843400979 DE3400979A1 (en) 1984-01-13 1984-01-13 Fuel for a fluidised-bed furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843400979 DE3400979A1 (en) 1984-01-13 1984-01-13 Fuel for a fluidised-bed furnace

Publications (1)

Publication Number Publication Date
DE3400979A1 true DE3400979A1 (en) 1985-07-18

Family

ID=6224871

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843400979 Withdrawn DE3400979A1 (en) 1984-01-13 1984-01-13 Fuel for a fluidised-bed furnace

Country Status (1)

Country Link
DE (1) DE3400979A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19538711A1 (en) * 1995-10-18 1997-04-30 Sicowa Verfahrenstech Ash-utilisation system in coal-fired power station

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2700170B2 (en) * 1977-01-04 1980-10-02 Fritz Dr.-Ing. 8026 Ebenhausen Schoppe Process to improve the storage safety of pulverized lignite
DE3026008A1 (en) * 1980-07-09 1982-01-21 Fritz Dr.-Ing. 8026 Ebenhausen Schoppe Heavy duty boiler firing system - uses mixture of three quarters brown coal dust and one quarter anthracite dust

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2700170B2 (en) * 1977-01-04 1980-10-02 Fritz Dr.-Ing. 8026 Ebenhausen Schoppe Process to improve the storage safety of pulverized lignite
DE3026008A1 (en) * 1980-07-09 1982-01-21 Fritz Dr.-Ing. 8026 Ebenhausen Schoppe Heavy duty boiler firing system - uses mixture of three quarters brown coal dust and one quarter anthracite dust

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DE-Buch: Verlag TÜV Rheinland: Wirbelschicht- feuerung, Köln 1983, S.75-79 *
DE-Z: Chem.-Ing.-Techn. 55, 1983, 3, S.185-187 *
DE-Z: Sonderdruck aus BWK 35, 1983, H.11, Steinmüller Information S.453-458 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19538711A1 (en) * 1995-10-18 1997-04-30 Sicowa Verfahrenstech Ash-utilisation system in coal-fired power station
US5782363A (en) * 1995-10-18 1998-07-21 Sicowa Verfahrenstechnik Fur . . . Co. Kg Method of conducting fluidized-bed firing with open-pass ash obtained from a coal-firing plant or the like

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