DE3615565C1 - Method for the joint preparation of coal and organic refuse for subsequent combustion in a fluidized bed - Google Patents

Method for the joint preparation of coal and organic refuse for subsequent combustion in a fluidized bed

Info

Publication number
DE3615565C1
DE3615565C1 DE19863615565 DE3615565A DE3615565C1 DE 3615565 C1 DE3615565 C1 DE 3615565C1 DE 19863615565 DE19863615565 DE 19863615565 DE 3615565 A DE3615565 A DE 3615565A DE 3615565 C1 DE3615565 C1 DE 3615565C1
Authority
DE
Germany
Prior art keywords
fluidized bed
coal
fluidised bed
organic refuse
furnace
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
DE19863615565
Other languages
German (de)
Inventor
Peter Voelskow
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.)
BERLIN CONSULT GmbH
Original Assignee
BERLIN CONSULT GmbH
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 BERLIN CONSULT GmbH filed Critical BERLIN CONSULT GmbH
Priority to DE19863615565 priority Critical patent/DE3615565C1/en
Application granted granted Critical
Publication of DE3615565C1 publication Critical patent/DE3615565C1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/50—Blending
    • F23K2201/501—Blending with other fuels or combustible waste

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

The invention relates to a method for the joint preparation and subsequent combustion of coal and organic refuse in a fluidised bed, the coal and the organic refuse being jointly comminuted, homogenised and mixed at any desired mixing ratio in a ball mill and subsequently charged into a fluidised bed. Preference is given to a so called "rotating fluidised bed" having an obliquely inclined tuyère bottom and guide lugs in the fluidised bed furnace or an essentially cylindrical fluidised bed furnace in which the fuel is charged centrally from above, via a conical tuyère bottom, into the fluidised bed beneath the free space with additional air at excess pressure with respect to the fluidised bed.

Description

Die Erfindung betrifft ein Verfahren zur gemeinsamen Aufbereitung von Kohle und organischen Abfällen für die nachfolgende Verbrennung in einer Wirbelschicht. Als organische Abfälle können Hausmüll, hausmüllähnlicher Gewerbemüll, Sperrmüll, Klärschlamm, Baumrinde oder dergleichen eingesetzt werden.The invention relates to a method for joint preparation of coal and organic waste for subsequent incineration in a fluidized bed. Household waste, commercial waste similar to household waste, bulky waste, sewage sludge, Tree bark or the like can be used.

Kohle hat eine ganz andere Struktur als Müll oder ähnliche organische Abfälle. Am vorteilhaftesten wird Kohle relativ fein zerkleinert in einer zirkulierenden Wirbelschichtfeuerung verbrannt. Bei stationären Wirbelschichtfeuerungen wird Kohle im allgemeinen durch Wurfbeschickung in den Freiraum über dem Wirbelbett gleichmäßig verteilt. In jedem Falle ist eine aufwendige Mahlanlage für die Kohle erforderlich.Coal has a completely different structure than garbage or the like organic waste. Coal is most advantageously relative finely crushed in a circulating fluidized bed combustion burned. In the case of stationary fluidized bed furnaces Coal in general by throwing it into the free space evenly distributed over the fluidized bed. In any case a complex grinding plant for the coal is required.

Wenn beide Brennstoffarten von so unterschiedlicher Struktur, Feuchte und Heizwert gemeinsam in einer Wirbelschichtfeuerung verbrannt werden sollen, ist es ein beträchtlicher Aufwand, zweierlei Dosier- und Beschickungsvorrichtungen für diese beiden Brennstoffarten vorzusehen und zwei unterschiedliche Mahlanlagen zur Zerkleinerung derselben.If both types of fuel have such a different structure, Moisture and calorific value together in a fluidized bed furnace to be burned, it is a considerable effort two types of dosing and feeding devices for these two Provide fuel types and two different ones Grinding plants for crushing the same.

Aufgabe der Erfindung ist es, eine Lösung zu finden, um beide Brennstoffe gemeinsam mit einer einzigen Mahlanlage zu zerkleinern und das gemischte Zerkleinerungsgut mit einer Beschickungsvorrichtung in eine Wirbelschichtfeuerung einzutragen.The object of the invention is to find a solution to both Shred fuels together with a single grinding system and the mixed comminution material with a loading device into a fluidized bed furnace.

Die Erfindung löst die Aufgabe nach den Patentansprüchen 1 bis 3.The invention solves the problem according to the claims 1 to 3.

Die Vorteile der Erfindung liegen in der Lösung der gestellten Aufgabe. Insbesondere wird eine aufwendige Kohlemahlanlage eingespart, die bisher für nahezu alle gebräuchlichen Kohlefeuerungen mit Ausnahme der Rostfeuerung erforderlich ist. Eine Zerkleinerung und Homogenisierung des Gemisches verschiedener organischer Abfälle, wie beispielsweise Hausmüll, hausmüllähnlicher Gewerbemüll, Sperrmüll und gegebenenfalls Klärschlamm, ist in jedem Falle erforderlich. Besonders bewährt hat sich für diese Zerkleinerung und Homogenisierung eines Abfallgemisches aus organischen Abfällen eine modifizierte Kugelmühle. Ein besonderer Vorteil der Erfindung ist es, diese Kugelmühle zusätzlich zur Vermahlung der Kohle bei gleichzeitiger Homogenisierung und Durchmischung mit den organischen Abfällen einzusetzen. Das völlig homogene Gemisch aus organischen Abfällen und Kohle kann dann gemeinsam in eine Wirbelschichtfeuerung eingetragen werden.The advantages of the invention lie in the solution of the posed Task. In particular, a complex coal grinding plant saved so far for almost all common coal firing systems with the exception of the grate firing is required. A crushing and homogenization of the mixture of different organic waste, such as household waste, more similar to household waste Commercial waste, bulky waste and, if necessary, sewage sludge, is required in any case. Tried and tested has become one for this crushing and homogenization Waste mixture from organic waste a modified Ball mill. A particular advantage of the invention is this Ball mill in addition to grinding the coal at the same time Homogenization and mixing with the organic Use waste. The completely homogeneous mixture of organic Waste and coal can then go together in a fluidized bed furnace be entered.

Claims (3)

1. Verfahren zur gemeinsamen Aufbereitung von Kohle und organischen Abfällen für die nachfolgende Verbrennung in einer Wirbelschicht, dadurch gekennzeichnet, daß Kohle und die organischen Abfälle in einem beliebigen Mischungsverhältnis gemeinsam in einer Kugelmühle zerkleinert und homogenisiert/gemischt werden und daß anschließend dieses Gemisch in die Wirbelschicht eingetragen wird.1. A process for the joint processing of coal and organic waste for the subsequent combustion in a fluidized bed, characterized in that coal and the organic waste are comminuted and homogenized / mixed together in a ball mill in any mixing ratio and then this mixture in the fluidized bed is entered. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zur Verbrennung eine sogenannte "rotierende Wirbelschicht" eingesetzt wird, bei der durch Schrägstellung des Düsenbodens und entsprechende Leitnasen im Wirbelschichtofen eine langsame Rotation des gesamten Wirbelbettmaterials um eine horizontale Achse bewirkt wird.2. The method according to claim 1, characterized in that a so-called "rotating fluidized bed" for combustion is used in which by tilting the nozzle base and corresponding lugs in the fluidized bed furnace a slow rotation of the entire fluidized bed material around a horizontal axis. 3. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß als Wirbelschichtofen ein im wesentlichen zylindrischer Ofen verwendet wird, bei dem der Brennstoff zentral von oben über einem kegelförmigen Düsenboden in die Wirbelschicht unterhalb des Freiraumes eingetragen wird.3. The method according to claims 1 and 2, characterized in that as a fluidized bed furnace essentially cylindrical furnace is used in which the fuel centrally from above over a conical nozzle bottom in the fluidized bed entered below the free space becomes.
DE19863615565 1986-05-09 1986-05-09 Method for the joint preparation of coal and organic refuse for subsequent combustion in a fluidized bed Expired DE3615565C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863615565 DE3615565C1 (en) 1986-05-09 1986-05-09 Method for the joint preparation of coal and organic refuse for subsequent combustion in a fluidized bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863615565 DE3615565C1 (en) 1986-05-09 1986-05-09 Method for the joint preparation of coal and organic refuse for subsequent combustion in a fluidized bed

Publications (1)

Publication Number Publication Date
DE3615565C1 true DE3615565C1 (en) 1987-10-29

Family

ID=6300409

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863615565 Expired DE3615565C1 (en) 1986-05-09 1986-05-09 Method for the joint preparation of coal and organic refuse for subsequent combustion in a fluidized bed

Country Status (1)

Country Link
DE (1) DE3615565C1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994024486A1 (en) * 1993-04-16 1994-10-27 Veag Vereinigte Energiewerke Ag Process and installation for burning organic materials and coal dust
DE4432154A1 (en) * 1994-09-09 1996-03-14 Evv Vermoegensverwaltungs Gmbh Method and device for the continuous digestion of organic components of a flowable material to be treated
WO1997027429A1 (en) * 1996-01-24 1997-07-31 Basf Lacke + Farben Ag Industrial waste combustion process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS-ERMITTELT *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994024486A1 (en) * 1993-04-16 1994-10-27 Veag Vereinigte Energiewerke Ag Process and installation for burning organic materials and coal dust
DE4432154A1 (en) * 1994-09-09 1996-03-14 Evv Vermoegensverwaltungs Gmbh Method and device for the continuous digestion of organic components of a flowable material to be treated
WO1997027429A1 (en) * 1996-01-24 1997-07-31 Basf Lacke + Farben Ag Industrial waste combustion process
US6125774A (en) * 1996-01-24 2000-10-03 Basf Coatings Ag Industrial waste combustion process

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D1 Grant (no unexamined application published) patent law 81
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