DE1249897B - - Google Patents
Info
- Publication number
- DE1249897B DE1249897B DENDAT1249897D DE1249897DA DE1249897B DE 1249897 B DE1249897 B DE 1249897B DE NDAT1249897 D DENDAT1249897 D DE NDAT1249897D DE 1249897D A DE1249897D A DE 1249897DA DE 1249897 B DE1249897 B DE 1249897B
- Authority
- DE
- Germany
- Prior art keywords
- head
- tube
- gas
- fuel
- cylindrical
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000006199 nebulizer Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 2
- 230000005855 radiation Effects 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 claims 1
- 239000000295 fuel oil Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/18—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material
- H05K3/181—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating
- H05K3/182—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating characterised by the patterning method
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/002—Inhomogeneous material in general
- H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/26—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/18—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material
- H05K3/181—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0236—Plating catalyst as filler in insulating material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/11—Treatments characterised by their effect, e.g. heating, cooling, roughening
- H05K2203/1157—Using means for chemical reduction
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/12—Using specific substances
- H05K2203/125—Inorganic compounds, e.g. silver salt
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/105—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by conversion of non-conductive material on or in the support into conductive material, e.g. by using an energy beam
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
Description
BUNDESREPUBLIK DEUTSCHLAND DEUTSCHES Jlllli PATENTAMT Int. Cl.:FEDERAL REPUBLIC OF GERMANY GERMAN Jlllli PATENT OFFICE Int. Cl .:
Nummer:Number:
C21bC21b
1249 897
J20929VIa/18a
30. November 1961
14. September 1967
28. März 19681249 897
J20929VIa / 18a
November 30, 1961
September 14, 1967
March 28, 1968
Die Erfindung betrifft eine Düse zum Einspritzen von Kohlenwasserstoffen in Hochöfen, bestehend aus drei konzentrischen Rohren, nämlich einem feuerfesten äußeren Rohr für die Wärmeisolierung, einein für die Zuführung des Zerstäubergases dienenden mittleren Rohr, das in einem zylindrischkonischen Kopf endet, der mit-einer axialen Auslaßöffnung versehen ist, und einem für die Zuführung des Brennstoffes dienenden inneren Rohr, das in einem zylindrischen Kopf endet, der für den Durchgang des Brennstoffes mit einem zentralen Kanal versehen ist, dessen Auslaßöffnung in einem bestimmten Abstand von der Auslaßöffnung der ■ Düse liegt, sowie mit Umfangskanälen für den Durchgang des Zerstäubergases.The invention relates to a nozzle for injecting hydrocarbons into blast furnaces, consisting of of three concentric tubes, namely a refractory outer tube for thermal insulation, a central tube serving for the supply of the atomizer gas, which is in a cylindrically conical Head ends, which is provided with-an axial outlet opening, and one for the supply of the fuel serving inner tube, which ends in a cylindrical head, which for the Passage of the fuel is provided with a central channel, the outlet opening in one a certain distance from the outlet opening of the nozzle, as well as with circumferential channels for the Passage of the nebulizer gas.
Bei einer solchen Düse ist es bereits bekannt, daß die Länge der axialen AuslaBftfmung des zylindrischkonischen Kopfes im wesentlichen dessen Durchmesser entspricht.In such a nozzle it is already known that the length of the axial outlet of the cylindrically-conical Head essentially corresponds to its diameter.
Ferner wurde vorgeschlagen, den zylindrischen ao Kopf des inneren Rohres .in einem Abstand vom Ende der Düse anzuordnen, welcher etwa das Zweibis Achtfache des Durchmessers der Auslaßöffnung . des zylindrisch-konischen Kopfes beträgt.It was also proposed that the cylindrical ao head of the inner tube. At a distance from To be arranged at the end of the nozzle, which is about two to eight times the diameter of the outlet opening . of the cylindrical-conical head is.
Schließlich 15t "ös auch bekannt, die Umfangskanäle für" ilen1 Durchgang des Zerstäuberkanals in Form von sqnrdübenlmienförmigen Nuten auszubilden. Finally, 15t "ös also known the peripheral channels for" 1 ilen passage of Zerstäuberkanals in the form of grooves sqnrdübenlmienförmigen form.
Alle bekannten Düsen weisen in verschiedenem Maße den Nachteil auf, daß sie nach einer bestimmten Betriebsdauer'durch kohlenstoffhaltige AbIage-. magen verstopft werden, die von der allgemein als Kracken bezeichneten Zersetzung der Kohlenwasserstoffe herrühren.All known nozzles have to various degrees the disadvantage that they are after a certain Operating time through carbon-containing storage. stomachs are clogged by the commonly called Decomposition of the hydrocarbons referred to as cracking.
Außerdem befindet sich das innere Rohr, das durch den Durchgang des flüssigen Brennstoffes gekühlt wird, stets auf einer Temperatur, die niedriger ist als jene des mittleren Rohres, durch welches das '^erstäubergas in verhältnismäßig geringer Menge zugeführt wird. Da die ganze Einspritzdüse häufig ine Länge von mehr als 2 m aufweist, können die \usdehmragen beträchtliche Relatiwerschiebungen • ■es Endes des inneren Rohres .'gegenüber der Münsing der Düse bewirken, so daß die Zerstäubung er- .dblich gestört wird. .. 'In addition, there is the inner tube, which is cooled by the passage of the liquid fuel is always at a temperature lower than that of the central pipe through which the A relatively small amount of fuel is supplied. Because the whole injector often If the length is more than 2 m, the protrusions can cause considerable relative displacements • ■ cause the end of the inner tube opposite the Münsing of the nozzle, so that atomization is inherent is disturbed. .. '
Der Erfindung liegt die Aufgabe zugrunde, die ' Einspritzdüse derart auszubilden, daß eine vollkomi^ene Zerstäubung des Brennstoffes bewirkt wird.The invention is based on the object of designing the injection nozzle in such a way that it is fully functional Atomization of the fuel is effected.
Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß der im zylindrisch-konischen Kopf verschiebbare zylindrische Kopf des inneren Rohres für die Brennstoffzufuhr sich unter Einwirkung einerThis object is achieved according to the invention in that the displaceable in the cylindrical-conical head cylindrical head of the inner tube for the fuel supply itself under the action of a
Düse zum Einspritzen von Kohlenwasserstoffen in HochöfenNozzle for injecting hydrocarbons into blast furnaces
Patentiert für:
Institut de Recherches
de la Siderurgie Francaise,
Saint-Germain-en-Laye, Seine-et-Oise
(Frankreich)Patented for:
Institut de Recherches
de la Siderurgie Francaise,
Saint-Germain-en-Laye, Seine-et-Oise
(France)
Vertreter:Representative:
Dr.-Ing. A. v. Kreisler, Dr.-Ing. K. Schönwald
und Dr.-Ing. Th. Meyer, Patentanwälte,
Köln 1, DeichmannhausDr.-Ing. A. v. Kreisler, Dr.-Ing. K. Schönwald
and Dr.-Ing. Th. Meyer, patent attorneys,
Cologne 1, Deichmannhaus
Beanspruchte Priorität:
Frankreich vom 2. Dezember 1960 (845 735),
vom 12.0ktober 1961 (875751)Claimed priority:
France of December 2, 1960 (845 735),
from October 12, 1961 (875751)
Feder gegen den zylindrisch-konischen Kopf des mittleren Rohres für die Zufuhr des Zerstäubergases abstützt.Spring against the cylindrical-conical head of the central tube for the supply of the atomizer gas supports.
Bei dieser Ausbildung tragen die diese Einspritzdüse tragenden Teile dazu bei, daß die Bildung irgendeiner kohlenstoffhaltigen Ablagerung durch eine nahezu vollständige Mitnahme der Tropfen vermieden wird, die sich an der Mündung des inneren Rohres der Düse ansetzen könnten, sowie durch Aufrechterhaltung einer verhältnismäßig niedrigen Temperatur in dem Bereich, in. welchem die Zerstäubung vor sich geht.In this configuration, the parts supporting this injector contribute to the formation of any carbon-containing deposits avoided by almost completely entraining the drops that could attach to the mouth of the inner tube of the nozzle, as well as through Maintaining a relatively low temperature in the area in which the atomization going on.
In der Zeichnung ist eine beispielsweise Ausführungsfonn der Düse gemäß der Erfindung im axialen Längsschnitt dargestellt.In the drawing, an example embodiment of the nozzle according to the invention is in the axial Longitudinal section shown.
In der Zeichnung sind die beiden Enden der Einspritzdüse dargestellt, die übereinander angeordnet sind, wobei aber selbstverständlich das eine Ende in der Verlängerung des anderen Endes verläuft. Der untere TeiM ist das Einspritzende, welches in die Ausnehmung des Hochofens eintritt, während der obere Teil B das hintere Ende der Einspritzdüse darstellt, durch welches die Zuführung, der Medien erfolgt. Die Gesamtlänge einer Einspritzdüse kann je nach den Abmessungen des betreffenden Hochofens 2 bis 3 m betragen, und in der Zeichnung ist daher der mittlere Teil weggelassen, der nur aus konzentrischen Rohren besteht.In the drawing, the two ends of the injection nozzle are shown, which are arranged one above the other, but of course one end extends in the extension of the other end. The lower part is the injection end, which enters the recess of the blast furnace, while the upper part B represents the rear end of the injection nozzle, through which the media is fed. The total length of an injection nozzle can be 2 to 3 m, depending on the dimensions of the blast furnace in question, and the central part, which consists only of concentric tubes, has therefore been omitted in the drawing.
Die Einspritzdüse umfaßt ein mittleres Rohr 1 aus feuerfestem Stahl, das in einem zylindrisch-konischenThe injection nozzle comprises a central tube 1 made of refractory steel, which is in a cylindrical-conical
»»531/33»» 531/33
Claims (1)
Deutsche Patentschriften Nr. 462207, 543003,
718 849;Considered publications:
German patent specifications No. 462207, 543003,
718 849;
schweizerische Patentschrift Nr. 132037.French Patent No. 341997;
Swiss patent specification No. 132037.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1282186T | 1960-12-02 | ||
| FR80810T | 1961-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1249897B true DE1249897B (en) |
Family
ID=32044406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1249897D Pending DE1249897B (en) | 1960-12-02 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE611055A (en) |
| DE (1) | DE1249897B (en) |
| FR (1) | FR80810E (en) |
| GB (1) | GB948978A (en) |
-
0
- BE BE611055D patent/BE611055A/xx unknown
- DE DENDAT1249897D patent/DE1249897B/de active Pending
-
1961
- 1961-10-12 FR FR875751A patent/FR80810E/en not_active Expired
- 1961-11-27 GB GB4227761A patent/GB948978A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR80810E (en) | 1963-06-21 |
| BE611055A (en) | |
| GB948978A (en) | 1964-02-05 |
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