DE3608293A1 - Tuyère bottom for fluidised-bed furnace beds - Google Patents

Tuyère bottom for fluidised-bed furnace beds

Info

Publication number
DE3608293A1
DE3608293A1 DE19863608293 DE3608293A DE3608293A1 DE 3608293 A1 DE3608293 A1 DE 3608293A1 DE 19863608293 DE19863608293 DE 19863608293 DE 3608293 A DE3608293 A DE 3608293A DE 3608293 A1 DE3608293 A1 DE 3608293A1
Authority
DE
Germany
Prior art keywords
ash
fluidised
tuyère
cones
bed 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.)
Granted
Application number
DE19863608293
Other languages
German (de)
Other versions
DE3608293C2 (en
Inventor
Heinz Dipl Ing Hoelter
Heribert Dipl Ing Dewert
Reinhold Dipl Ing Strohdeicher
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 DE19863608293 priority Critical patent/DE3608293A1/en
Publication of DE3608293A1 publication Critical patent/DE3608293A1/en
Application granted granted Critical
Publication of DE3608293C2 publication Critical patent/DE3608293C2/de
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/44—Fluidisation grids
    • 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
    • F23C10/18—Details; Accessories
    • F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms

Landscapes

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

Abstract

It is known that tuyère bottoms for fluidised-bed furnace installations wear rapidly and moreover are very expensive. In order to avoid these disadvantages, it is proposed according to the invention that the tuyère bottom consists of two plates (1, 2) made of high-temperature-resistant material which are held at a desired and necessary spacing by distance bolts (3), in which the upper holes (4) are offset in relation to the lower holes (5) in such a manner that the formation of debris cones (7) by the ash (9) is guaranteed, and the air (8) flowing past swirls the ash (6) in the ash and over the debris cones in a low-wear manner. <IMAGE>

Description

Es ist bekannt, daß Düsenböden für Wirbelschichtfeuerungsanlagen relativ schnell verschleißen und sehr teuer sind.It is known that nozzle heads for fluidized bed combustion plants wear out relatively quickly and are very expensive.

Um eine sehr einfache Düsenbodenfläche zu gestalten und diese auch hochverschleißfest auszubilden, wird erfindungsgemäß vorgeschlagen, eine Düsenboden- Anordnung entsprechend der Ausbildungsform zu erstellen.To make a very simple nozzle bottom surface and to make them highly wear-resistant proposed according to the invention, a nozzle bottom Arrangement according to the type of training to create.

In der Zeichnung ist dargestellt:The drawing shows:

Abb. A
mit (1) ein Oberbodenblech;
mit (2) ein Unterbodenblech;
mit (3) Distanzbolzen zwischen Ober- und Unterblech;
mit (4) die oberen Löcher im Oberblech;
mit (5) die versetzt angeordneten Löcher im Unterblech. Fig.A
with ( 1 ) an upper floor panel;
with ( 2 ) an underbody sheet;
with ( 3 ) spacer bolts between top and bottom plate;
with ( 4 ) the upper holes in the top plate;
with ( 5 ) the staggered holes in the bottom plate.

Abb. B
Hier sind mit (4) ebenfalls die Oberlöcher als geschlossene Kreise und mit (5) die erfindungsgemäß versetzt angeordneten Unterlöcher in gestrichelter Form dargestellt. Fig. B
Here ( 4 ) also shows the top holes as closed circles and ( 5 ) shows the bottom holes arranged according to the invention in dashed lines.

In der Abb. C ist mit (1) das Oberblech dargestellt und mit (2) das Unterblech, das gleichzeitig durch die Lochanordnung wie versetzt im Unterblech gegenüber dem Oberblech wirkt, und durch Distanzhaltung des Distanzbolzens (3) durch die Asche (6) bildet sich ein Schüttkegel (7) aus, der durch die vorbeistreichende Luft (8) gehalten wird.In Fig. C, the top plate is shown with ( 1 ) and with ( 2 ) the bottom plate, which acts at the same time as offset in the bottom plate compared to the top plate due to the hole arrangement, and by keeping the spacer bolt ( 3 ) through the ash ( 6 ) a cone ( 7 ), which is held by the passing air ( 8 ).

Erfindungsgemäß ist durch die Anordnung von Oberblech zum Unterblech und durch die versetzte Lochausführung ein natürlicher Schüttkegel gegeben, wobei die Unterlöcher gegenüber den Oberlöchern so versetzt sein müssen, daß sich zwangsläufig der Schüttkegel bilden kann, damit eine natürliche verschleißfeste Schicht durch die vorbeistreichende Luft gegeben ist, und über die Distanzbolzen (Verbindung 3) ein leichtes Auswechseln der Blechplatten möglich ist.According to the invention, a natural pouring cone is provided by the arrangement of the top plate to the bottom plate and by the staggered hole design, the bottom holes having to be offset relative to the top holes in such a way that the pouring cone can inevitably form, so that a natural wear-resistant layer is provided by the air flowing past, and easy replacement of the sheet metal plates is possible using the spacer bolts (connection 3 ).

Durch die Lochanordnung in den Blechplatten ist auch die Ausdehnung innerhalb der Düsenbodenplatten durch Wärmeeinwirkung ohne nennenswerte Spannung im Gesamtsystem gewährleistet.Due to the hole arrangement in the sheet metal plates also the expansion within the nozzle base plates due to the effect of heat without any significant tension in the Overall system guaranteed.

Claims (1)

Düsenboden für Wirbelschichtfeuerungsanlagen, dadurch gekennzeichnet, daß er aus zwei hochtemperaturfesten Materialplatten (1) und (2) besteht, die durch Distanzboden (3) auf gewünschtem und erforderlichem Abstand gehalten werden, in denen die Oberlöcher (4) gegenüber den Unterlöchern (5) so versetzt sind, daß die Bildung von Schüttkegeln (7) durch die Asche (9) gewährleistet ist, und die vorbeistreichende Luft (8) in der Asche und über den Schüttkegeln verschleißarm die Asche (6) verwirbelt.Nozzle base for fluidized bed combustion systems, characterized in that it consists of two high-temperature-resistant material plates ( 1 ) and ( 2 ) which are kept at the desired and required distance by means of a spacer base ( 3 ), in which the upper holes ( 4 ) are opposite the lower holes ( 5 ) are offset so that the formation of cones ( 7 ) is ensured by the ashes ( 9 ), and the air ( 8 ) passing in the ashes and above the cones of swirls swirls the ashes ( 6 ) with little wear.
DE19863608293 1986-03-13 1986-03-13 Tuyère bottom for fluidised-bed furnace beds Granted DE3608293A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863608293 DE3608293A1 (en) 1986-03-13 1986-03-13 Tuyère bottom for fluidised-bed furnace beds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863608293 DE3608293A1 (en) 1986-03-13 1986-03-13 Tuyère bottom for fluidised-bed furnace beds

Publications (2)

Publication Number Publication Date
DE3608293A1 true DE3608293A1 (en) 1987-09-17
DE3608293C2 DE3608293C2 (en) 1993-01-14

Family

ID=6296195

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863608293 Granted DE3608293A1 (en) 1986-03-13 1986-03-13 Tuyère bottom for fluidised-bed furnace beds

Country Status (1)

Country Link
DE (1) DE3608293A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1190287A (en) * 1968-05-11 1970-04-29 Okawara Mfg Fluidized Bed Particle Drying Apparatus
US4235171A (en) * 1978-12-21 1980-11-25 Chevron Research Company Natural draft combustion zone optimizing method and apparatus
DE3232794A1 (en) * 1982-08-26 1984-03-01 Gebrüder Sulzer AG, 8401 Winterthur Combustion chamber floor for a fluidised bed furnace
DE3027303C2 (en) * 1979-08-01 1984-06-20 Curtiss-Wright Corp., Wood-Ridge, N.J. Fluidized bed incinerator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1190287A (en) * 1968-05-11 1970-04-29 Okawara Mfg Fluidized Bed Particle Drying Apparatus
US4235171A (en) * 1978-12-21 1980-11-25 Chevron Research Company Natural draft combustion zone optimizing method and apparatus
DE3027303C2 (en) * 1979-08-01 1984-06-20 Curtiss-Wright Corp., Wood-Ridge, N.J. Fluidized bed incinerator
DE3232794A1 (en) * 1982-08-26 1984-03-01 Gebrüder Sulzer AG, 8401 Winterthur Combustion chamber floor for a fluidised bed furnace

Also Published As

Publication number Publication date
DE3608293C2 (en) 1993-01-14

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee