DE8504117U1 - Dosing and atomizing nozzle for solid-liquid mixtures, preferably for coal dust-water or coal dust-oil mixtures, for metering and fine atomization of the mixtures and admixing the mixed air required for the combustion of the mixtures - Google Patents
Dosing and atomizing nozzle for solid-liquid mixtures, preferably for coal dust-water or coal dust-oil mixtures, for metering and fine atomization of the mixtures and admixing the mixed air required for the combustion of the mixturesInfo
- Publication number
- DE8504117U1 DE8504117U1 DE19858504117 DE8504117U DE8504117U1 DE 8504117 U1 DE8504117 U1 DE 8504117U1 DE 19858504117 DE19858504117 DE 19858504117 DE 8504117 U DE8504117 U DE 8504117U DE 8504117 U1 DE8504117 U1 DE 8504117U1
- Authority
- DE
- Germany
- Prior art keywords
- mixtures
- coal dust
- nozzle
- nozzle needle
- dosing
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
- F23D1/005—Burners for combustion of pulverulent fuel burning a mixture of pulverulent fuel delivered as a slurry, i.e. comprising a carrying liquid
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Description
Betr.: GebrauchsmusteranmeldungRe: utility model registration
Dosier und Zerstäuberdüese für Feststoff -Fl üssi e'-'.eits-Gemische vorzugsweise für Kohlestaub-Wasser oder Kohlestaub-Oel -Genri sehe, zur Dosierung und Feinstzerstäubung der Gemische und Beimischung,der für die Verbrennung der Gemische erforderlichen Mischluft. Dosing and atomizing nozzle for solid-liquid '-'. Eits mixtures preferably for coal dust-water or coal dust-oil -Genri see, for dosing and fine atomization the mixtures and admixture, the mixed air required for the combustion of the mixtures.
Die Dosierung der Gemische erfolgt durch axiale Verschiebung der Düsennadel 1 wodurch der Düsentiadelkopf 3 geöffnet wird und ein bestimmbarer ringförmiger Durchlaßspaltspalt entsteht,das Gemisch wird unter bestimmtem Druck aus dem Gemischraum in Relation zum Gesamt-Gemisch durch den Durchlaßspalt gedruckt.The mixture is metered by axially displacing the nozzle needle 1, thereby removing the nozzle needle head 3 is opened and a definable annular passage gap is created, the mixture is under A certain pressure from the mixture space in relation to the total mixture is printed through the passage gap.
Nach Passierung des Durchlaßspaltes bildet das Gemisch einen rohrförmigen Film in der Stärke des Duechlaßspaltes. After passing the passage gap, the mixture forms a tubular film in the thickness of the inlet gap.
Die durch das Düsennadel ende 3,eingeleitete erhitzte Druckluft oder Druckgas,tritt aus der Zerstäuber-Hülse 5a unmittelbar nach de»· Bildung des rohrförmigen Gemisch-Films aus,wodurch eine Verdampfung des Flüssigkeits Anteils des Gemisches erfolgt.The heated through the nozzle needle end 3, introduced Compressed air, or pressurized gas, emerges from the atomizer sleeve 5a immediately after the formation of the tubular mixture film, causing evaporation of the liquid Portion of the mixture takes place.
Die erziehlte Expansion der verdampften Flüssigkeit bewirkt eine sehr feine Verteilung des Kohle Anteils in der Expansionszone.The expansion achieved in the vaporized liquid results in a very fine distribution of the carbon content in the expansion zone.
Die durch den E-Jektor-Ringspalt 11 eingebrachte Verbrennungsluft ergibt das für die Primär-Verbrennung optimale Kohle-Gas-Gemisch dsa durch die Zündung wird und danach durch die Drallnuten in der Düsennadelspitze 6 und im Zerstäuberroh" 15 in Rotation versetzt wi "d.The one introduced through the E-Jector annular gap 11 Combustion air provides that for the primary combustion optimal coal-gas mixture as a result of the ignition is and then set in rotation by the swirl grooves in the nozzle needle tip 6 and in the atomizer tube "15 wi "d.
Durch die Rotation wird ein besserer und kürzerer Ausbrand erreicht.The rotation achieves a better and shorter burnout.
Die Dosierung Kohle-Luft-Gas-Gemisch für den Ausbrand ist automatisch regelbar bei Veränderungen der Durchsatz Menge in dem der Druck erhöht wird und der Spalt des E-Jektor sich verändert in Verbindung mit der axialen Verschiebung der Düsennadel 1.Dosing coal-air-gas mixture for the burnout can be adjusted automatically when the throughput changes, by increasing the pressure and increasing the gap of the e-jector changes in connection with the axial displacement of the nozzle needle 1.
Die Veränderung der Zersteuber-Hülse in ihrer Länge und Stellung ist durch die unterschiedlichen Kohle·Qualität bedingt,The change in the length of the Zersteuber sleeve and position is due to the different coal quality,
Es ist bekanntjdaß Dosier und Mischdüsen mit Voll-Strahl eingesetz wurden.It is known that dosing and mixing nozzles with full jet were used.
Diese Systeme haben den Nachteiljdaß in den vollen Mischluftstrehil das Gemisch eingepresst wurde bzw.,daß durch ein Vacuum der volle Gemischstrahl angesaugt wurde. Da das Gemisch kein homogenes Gebilde ist findet im Voll-Strahl eine Entmischung statt darüber hinaus ergeben sich im Voll-Strahl Entmischungen durch die unterschiedlichen Strömungsgeschwindigkeiten ferner neigt das Gemisch zur Knoten und Klumpen Bildung die nicht mehr zerstört werden Können,das Ergebnis ist eine ungleichmäsige Flamme nach der Zündung und einen schlechten Ausbrand. BESCHREIBUNG DER ERFINDUNG These systems have the disadvantage that the mixture was pressed into the full mixed air section or that the full mixture jet was sucked in by a vacuum. Since the mixture is not a homogeneous structure, segregation takes place in the full jet, in addition, in the full jet there is segregation due to the different flow speeds after ignition and a bad burnout. DESCRIPTION OF THE INVENTION
Durch die Erfindung werden dies Nachteile dadurch vermieden, daß die Dosierung durch die Öffnung der Düsennadel 1 erfogt und das Gemisch zu einem rohrförmigen Film gebildet wird der nach verlassen der Ringförmigen Öffnung durch die am Düsennadelende 3 eingepresste erhitzte Druckluft beim Austritt aus der Zerstäuber-Hülse 5a die im Gemisch vorhandene Flüssigkeit verdampft und durch die Verdampfung im Expansions Raum 16,wodurch eine Feinzerstäubung des vorhandenen Kohlestaubs erziehlt wird.The invention avoids these disadvantages in that the metering takes place through the opening of the nozzle needle 1 and the mixture is formed into a tubular film which after leaving the annular opening through the am At the end of the nozzle needle end 3, heated compressed air is pressed in when it emerges from the atomizer sleeve 5a, the liquid present in the mixture is evaporated and due to the evaporation in the expansion room 16, whereby a fine atomization of the existing coal dust is achieved.
Die Abstimmung Temperatur und Luftdruck richtet sich nach der Wanddicke des rohrförmigen Filmes bzw.dünnwandigen-Rohres.The coordination of temperature and air pressure depends on the wall thickness of the tubular film or thin-walled pipe.
Die Veränderung der Zerstäuber-Hülse 5a in Ihrer Länge und Stellung,zum E-Jektor Ringspalt Π ist erforderlich bei Verwendung unterschiedlicher Kohle-Qualität.The change in length of the atomizer sleeve 5a and position, to the E-Jector Annular gap Π is required when using different carbon qualities.
Anlagenbau Berberich GrribH !. * *· * Blatt -4- Plant construction Berberich GrribH !. * * * * Sheet -4-
Zeichnungsbeschreibung :Drawing description:
Fi£. 1 zeigt einen Schnitt durch die schematisch dargestellte Dosier-und-Zerstä'uber-Düse. (In geschlossenem Zustand)Fi £. 1 shows a section through the schematically illustrated Dosing-and-atomizing nozzle. (When closed)
1 Düsennadel1 nozzle needle
2 Bohrung2 hole
3 Düsennadel ende3 nozzle needle end
4 Düsennadel kopf4 nozzle needle head
5 Vertei1erberei ch 5a Zerstäuberhülse5 Distribution ch 5a atomizer sleeve
6 Düsennadelspitze6 nozzle needle tip
7 Düsennadelführung7 nozzle needle guide
8 Düsennadel dichtung8 nozzle needle seal
9 Düsennadelsteuerung9 Jet needle control
Druck-Luft-Gas-Anschluß E.^Jektor-Ringspalt E.-Jektor-Druckgas-Anschluß Gemisch-Raum Leitungsanschluß für den Gemisch-Raum Zerstäuber - Rohr Expansions-RaumPressure-air-gas connection E. ^ Jektor annular gap E. jector compressed gas connection, mixture space Line connection for the mixture space Atomizer - tube expansion space
κ (tee ei ι «e Uf ο tiiκ (tea egg ι «E Uf ο tii
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19858504117 DE8504117U1 (en) | 1985-02-14 | 1985-02-14 | Dosing and atomizing nozzle for solid-liquid mixtures, preferably for coal dust-water or coal dust-oil mixtures, for metering and fine atomization of the mixtures and admixing the mixed air required for the combustion of the mixtures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19858504117 DE8504117U1 (en) | 1985-02-14 | 1985-02-14 | Dosing and atomizing nozzle for solid-liquid mixtures, preferably for coal dust-water or coal dust-oil mixtures, for metering and fine atomization of the mixtures and admixing the mixed air required for the combustion of the mixtures |
Publications (1)
Publication Number | Publication Date |
---|---|
DE8504117U1 true DE8504117U1 (en) | 1985-05-09 |
Family
ID=6777431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19858504117 Expired DE8504117U1 (en) | 1985-02-14 | 1985-02-14 | Dosing and atomizing nozzle for solid-liquid mixtures, preferably for coal dust-water or coal dust-oil mixtures, for metering and fine atomization of the mixtures and admixing the mixed air required for the combustion of the mixtures |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE8504117U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007005256A1 (en) * | 2007-02-02 | 2008-08-07 | Messer Austria Gmbh | Burner for e.g. hearth-type furnace for heating and melting of glass, has nozzle equipped with supply for primary oxidizing agent and another supply for secondary oxidizing agent equipped with unit for changing passage area of both supplies |
-
1985
- 1985-02-14 DE DE19858504117 patent/DE8504117U1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007005256A1 (en) * | 2007-02-02 | 2008-08-07 | Messer Austria Gmbh | Burner for e.g. hearth-type furnace for heating and melting of glass, has nozzle equipped with supply for primary oxidizing agent and another supply for secondary oxidizing agent equipped with unit for changing passage area of both supplies |
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