DE2118252B2 - NOZZLE KNIFE FOR STRIP COATING PLANTS - Google Patents
NOZZLE KNIFE FOR STRIP COATING PLANTSInfo
- Publication number
- DE2118252B2 DE2118252B2 DE19712118252 DE2118252A DE2118252B2 DE 2118252 B2 DE2118252 B2 DE 2118252B2 DE 19712118252 DE19712118252 DE 19712118252 DE 2118252 A DE2118252 A DE 2118252A DE 2118252 B2 DE2118252 B2 DE 2118252B2
- Authority
- DE
- Germany
- Prior art keywords
- nozzle
- fan
- pressure
- compressed air
- speed
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
- C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
- C23C2/18—Removing excess of molten coatings from elongated material
- C23C2/20—Strips; Plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
- F01C1/126—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with elements extending radially from the rotor body not necessarily cooperating with corresponding recesses in the other rotor, e.g. lobes, Roots type
Description
30 Die Zeichnung zeigt ein Ausführungsbeispiel der30 The drawing shows an embodiment of the
Erfindung. Es bedeutetInvention. It means
F i g. 1 einen Schnitt durch die mit einem Rootesgebläse kombinierte Düse,F i g. 1 a section through the nozzle combined with a Rootes blower,
Die Erfindung betrifft em Düsenmesser zur Beauf- F i g. 2 einen Schnitt durch die mit einem Turboge-The invention relates to a nozzle knife for loading F i g. 2 a section through the with a turbo-
schlagung von beschichteten Bändern bei Bandbe- 35 blase kombinierte Düse,whipping of coated strips with strip blowing 35 combined nozzle,
Schichtungsanlagen, vorzugsweise Feuerverzinkungs- F i g. 3 einen Schnitt durch den Erfindungsgegenanlagen mit Druckluft, bestehend aus einer quer zum stand, wobei dem Verdichter ein Schieber vorgebewegten Band angeordneten Düse mit spaltförmi- schaltet ist; ger, gegen das beschichtete Band gerichteter Aus- Fig. 4 ist ein Vorderansicht;Layering systems, preferably hot-dip galvanizing F i g. 3 shows a section through the counter-systems of the invention with compressed air, consisting of a transverse to the stand, with the compressor a slide moved forward Band arranged nozzle with gap-shaped switched; FIG. 4 is a front view; FIG. 4 is a front view;
trittsöffnung. 40 F i g. 5 ist eine Draufsicht.opening. 40 Fig. 5 is a plan view.
Derartige Düsenmesser zur Beaufschlagung von In F i g. 1 ist die Düse mit 1 bezeichnet, an die sichSuch nozzle knives for the application of In F i g. 1, the nozzle is denoted by 1, to which
beschichteten Bändern erfordern große Luftmengen. ein Rootesgebläse 2 anschließt mit dem Ansaugstut-Zudem ist es notwendig, daß der von der Düse gelie- zen 3. In F i g. 2 ist an Stelle des Rootesgebläse ein ferte Druckluftstrahl bzw. das Druckluftband über Turboverdichter4 angeordnet. In Fig. 3 ist dem Andie ganze Breite der Düse gleich stark ist, damit der 45 saugstutzen 3 noch ein Schieber 5 vorgeschaltet. In Überzug an jeder Stelle des Bandes gleich dick wird. Fig. 4 sind die Gebläse2 bzw. 4 in einem Gestell 6 Bei dem bekannten Stand der Technik erfolgt die höhenverstellbar angeordnet. Der Antrieb ist mit 7 Luftversorgung von einer zentralen Kompressoran- bezeichnet. Dieser kann aus einem drehzahlregelba-Iage über lange Verteilerrohre und Lmlenkungen. ren Motor oder einem nicht regelbaren Motor mit Zur Überwindung des Leitungswiderstandes war bei 5° einem zwischengeschalteten stufenlosen Getriebe beden großen erforderlichen Luftmengen eine relativ stehen.coated belts require large amounts of air. a Rootes blower 2 connects to the suction tube it is necessary that the 3. In F i g. 2 is on in place of the Rootes blower ferte compressed air jet or the compressed air belt arranged over turbo compressors4. In Fig. 3 is the Andie the entire width of the nozzle is equally strong, so that the suction nozzle 3 is also preceded by a slide 5. In Coating is the same thickness at every point on the tape. 4 are the fans 2 and 4 in a frame 6 In the known prior art, the height-adjustable arrangement takes place. The drive is with 7 Air supply from a central compressor called. This can be made from a speed control system via long distribution pipes and steering guides. ren motor or a non-controllable motor To overcome the line resistance, an interposed continuously variable transmission was required at 5 ° large amounts of air required are a relative stand.
sehr hohe Antriebsleistung für die Kompressoren Wirkungsweisevery high drive power for the compressor mode of operation
notwendig. Außerdem war es schwierig, an jedernecessary. Also, it was difficult on everyone
Stelle des Düsenmessers den gleichen Druck auf- Die im Gestelle angeordneten Gebläse2 bzw.4Put the same pressure on the nozzle knife - The fans 2 or 4 arranged in the frame
rechtzuerhalten, da die Luft über Rohre von be- 55 werden in der Höhenlage sowie durch Verschwenken grenztem Durchmesser zugeführt wurde und hinge- so eingestellt, daß der Luftdruck aus der Düsel in gen die Düse wesentlich breiter als der Rohrdurch- dem günstigsten Auftreffwinkel auf dem nicht dargemesser war. Nach den Seiten des Düsenmessers fiel stellten Band auftrifft. Nunmehr wird der Antrieb 7 der Druck daher ab. Man versuchte zwar du:ch Zu- angelassen, und das Düsenmesser beginnt zu arbeiführung von Luft an zwei oder mehr Stellen der Düse 60 ten. Durch Veränderung der Drehzahl des Antriediesen Übelstand zu mildern, doch blieben immer bes7 kann die Stärke des Luftstromes reguliert wernoch fühlbare Druckschwankungen bestehen. den. Bei nicht drehzahlregelbarem Antrieb 7 wirdRight, as the air can be lifted via pipes from the altitude and by pivoting limited diameter and adjusted so that the air pressure from the nozzle in The nozzle is considerably wider than the pipe diameter, the most favorable angle of incidence on the non-dargemesser was. After the sides of the nozzle knife fell, tape hits. Now the drive 7 the pressure therefore decreases. They tried you: ch - let on, and the nozzle knife begins to work of air at two or more points of the nozzle 60 th. By changing the speed of the drive To alleviate the problem, but the strength of the air flow can still be regulated there are palpable pressure fluctuations. the. If the drive 7 is not adjustable in speed
Der Erfindung liegt die Aufgabe zugrunde, eine durch den Schieber5 die angesaugte Luftmenge ab-Auordnung zu schaffen, die bei wesentlich geringerer gedrosselt.The invention is based on the object of arranging the amount of air sucked in by the slide 5 to create that throttled at much lower.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (4)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712118252 DE2118252C3 (en) | 1971-04-15 | 1971-04-15 | Nozzle knife for coil coating systems |
GB783472A GB1380169A (en) | 1971-04-15 | 1972-02-21 | Device for subjecting a coated strip to a blast of air |
FR7208052A FR2136001A5 (en) | 1971-04-15 | 1972-03-08 | |
IT2312072A IT951393B (en) | 1971-04-15 | 1972-04-13 | NOZZLE BLADE WITH SINGLE-THROAT BLOWER IN PARTICULAR FOR INVESTMENTS IN TAPE COATING PLANTS PREFERABLY FOR HOT GALVANIZING PLANTS OF METAL TAPES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712118252 DE2118252C3 (en) | 1971-04-15 | 1971-04-15 | Nozzle knife for coil coating systems |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2118252A1 DE2118252A1 (en) | 1972-10-26 |
DE2118252B2 true DE2118252B2 (en) | 1973-05-10 |
DE2118252C3 DE2118252C3 (en) | 1973-12-13 |
Family
ID=5804779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19712118252 Expired DE2118252C3 (en) | 1971-04-15 | 1971-04-15 | Nozzle knife for coil coating systems |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2118252C3 (en) |
FR (1) | FR2136001A5 (en) |
GB (1) | GB1380169A (en) |
IT (1) | IT951393B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU90421B1 (en) | 1999-07-23 | 2001-01-24 | Trefil Arbed Bissen S A | Gas wiping nozzle for a wire coating apparatus |
CN111387002B (en) * | 2020-04-27 | 2022-01-11 | 孔锋 | Sapling root starching equipment |
-
1971
- 1971-04-15 DE DE19712118252 patent/DE2118252C3/en not_active Expired
-
1972
- 1972-02-21 GB GB783472A patent/GB1380169A/en not_active Expired
- 1972-03-08 FR FR7208052A patent/FR2136001A5/fr not_active Expired
- 1972-04-13 IT IT2312072A patent/IT951393B/en active
Also Published As
Publication number | Publication date |
---|---|
DE2118252C3 (en) | 1973-12-13 |
FR2136001A5 (en) | 1972-12-22 |
GB1380169A (en) | 1975-01-08 |
DE2118252A1 (en) | 1972-10-26 |
IT951393B (en) | 1973-06-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8339 | Ceased/non-payment of the annual fee |