EP3645173B1 - Kühlvorrichtung für verzinkten draht - Google Patents

Kühlvorrichtung für verzinkten draht Download PDF

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Publication number
EP3645173B1
EP3645173B1 EP18732813.3A EP18732813A EP3645173B1 EP 3645173 B1 EP3645173 B1 EP 3645173B1 EP 18732813 A EP18732813 A EP 18732813A EP 3645173 B1 EP3645173 B1 EP 3645173B1
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EP
European Patent Office
Prior art keywords
fluid
purge
cooling system
spray
projection
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Active
Application number
EP18732813.3A
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English (en)
French (fr)
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EP3645173A1 (de
Inventor
Loïc RICHE
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ArcelorMittal Bissen and Bettembourg SA
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ArcelorMittal Bissen and Bettembourg SA
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Publication of EP3645173A1 publication Critical patent/EP3645173A1/de
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
    • 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
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C23C2/29—Cooling or quenching
    • 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
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/38—Wires; Tubes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00—Process control or regulation for heat treatments
    • C21D11/005—Process control or regulation for heat treatments for cooling

Definitions

  • the invention relates to the field of wire coating, more particularly to the dip coating of moving wires, such as for example the galvanizing of metal wires. More particularly still, the invention relates to a device for cooling coated wires, in particular coated metal wires emerging from a continuous hot-dip galvanizing bath, or more generally from an anti-corrosion bath.
  • Continuous hot-dip galvanizing of metal wire generally consists of immersing a metal wire in a bath of molten metal (zinc-based alloy); to control the load of the metal coating on the moving wire by means of a gas projection wiping system at the outlet of the galvanizing bath; and finally to cool the wire to an acceptable temperature before contact between the galvanizing coating and the driving parts of the moving wire. It is well known to those skilled in the art to cool a moving metal wire by spraying water, gas, or a water / gas mixture. In a continuous galvanizing line of metal wires, several wires move in parallel with respect to each other; and it is known for post-galvanizing cooling to use cooling devices forming a water jet oriented on each of the wires to be cooled.
  • Each water jet is conventionally formed by a nozzle oriented towards a running wire and connected to a water supply pipe.
  • the nozzle is generally directed towards the wire in a direction forming a substantially acute angle with the direction of travel of the wire so that the water jet, at the level of the apex of its path, contacts the wire before falling back into a tray behind the wire.
  • the object of the invention is to overcome the disadvantages of the state of the art, in particular of the aforementioned state of the art. More particularly, the object of the invention is to provide a cooling system the implementation of which is simple, and which allows rapid stopping of the projection of water towards the wires for better operator safety.
  • the purge means is therefore provided to cause a loss of pressure, preferably almost instantaneous, in the internal fluid passage of the projection head, by evacuation of the fluid.
  • This purge means which will act downstream of the service valve, allows the cooling fluid to be evacuated to a position closer to the projection orifices, which results in an immediate stopping of the water projection.
  • the effects are immediate and in this sense innovative compared to the state of the art: more risk of water being splashed on the surface of the molten galvanizing bath.
  • the major risks consist in trapping a drop of liquid, in particular water, in the molten metal bath (most often between 400 and 750 ° C depending on the metal coatings or between 50 and 300 ° C for organic coatings. or polymers).
  • the vaporization energy of the drop of water is accompanied by a strong volumetric expansion, and projects the liquid metal several meters away generating very high risk of burns which can even be fatal for a nearby operator.
  • the activation (triggering) of the purge means in the system of the invention therefore makes it possible to suddenly stop the spraying of water and to prevent such droplets from falling into the bath of molten metal.
  • the purge means of the present system is particularly advantageous for instantaneous shutdown of the cooling system, and will also be called emergency purge means. But as will be seen, the purging means can also be used for a planned maintenance shutdown or for any current operation.
  • the purge means is of the vacuum type, which allows forced evacuation of the cooling fluid out of the internal passage of the projection head.
  • the emergency purge means advantageously comprises a cooling fluid suction means.
  • the emergency purge means comprises for each head a purge line connecting the control head (in particular a purge orifice), via a purge solenoid valve, to the suction means (for example the vacuum chamber ).
  • the activation of the emergency purge means is advantageously coupled with the closing of the service valve. That is, the cooling system control module is designed so that when an emergency stop of a given spray head is desired, activation of the emergency purge means ( opening of the purge solenoid valve) is carried out substantially simultaneously with the closing of the service valve.
  • the figure 1 presents a cooling system 10 for an installation for galvanizing metal wires.
  • the installation is not shown, however we can see a series of wires 11 arranged one beside the other and extending vertically.
  • the cooling system 10 is placed above the galvanizing bath, and the wires 11 coming out of the bath run vertically, side by side.
  • the wires coated with a layer of anti-corrosion coating, partially solidified are first wiped with a gas jet (most often in air or an air-neutral gas mixture), then are cooled. by water jets as mentioned in connection with the description of the prior art.
  • the present cooling system 10 will therefore be advantageously used to produce such jets of water.
  • the cooling system 10 includes a power supply 12 with an internal chamber 14 for a cooling fluid; the power supply 12 is also called a collector.
  • the power supply 12 has the shape of an elongated tube, e.g. cylindrical - here of square section (but can also be circular or other), closed at one end and includes an inlet 15 at an opposite end for connecting the block to a power source (not shown).
  • the power source can typically be the production line water network. It is advantageously a closed circuit network, thus forming a recirculation loop.
  • the inlet passage 15 is surrounded by a connection flange 15.1.
  • the power supply unit 12 has on a side face of the fluid outlets 16. The side face is located between the two ends of the unit.
  • the power supply unit 12 therefore forms a water supply distributor or collector unit.
  • the cooling system 10 comprises projection heads, generally indicated 18, each of them being connected to one of the fluid outlets 16, preferably in a removable manner.
  • the wires 11 come out of a bath of anticorrosion metal alloy and travel vertically for their drying and their cooling.
  • the power supply unit 12 typically extends perpendicular to the direction of travel of the metal wires so that the projection heads 18 are located in the axis of the moving metal wires 11.
  • Each of the spray heads 18 comprises one or more orifices 20 for spraying cooling fluid (here three orifices 20 - Fig. 2 ). The fluid leaving each of the heads 18 via the projection orifices 20 is projected onto the corresponding wire 11.
  • the figure 1 presents a power supply unit 12 with more than twenty fluid outlets 16, to each of which is connected a projection head 18 respective.
  • the power supply unit 12 can comprise more than thirty, even up to more than one hundred outlets in very large galvanizing installations.
  • the fluid projected onto the wires is not represented on the Figure 1 , however the power supply 12 is in practice disposed horizontally opposite the son 11 which scroll vertically.
  • the projection heads 18, the configuration of which is described in detail with reference to figure 2 are made so that the fluid is projected upwards, in the direction of travel of the son, the jet of fluid leaving the orifices 20 forming an appropriate angle, for example between 10 and 80 °, preferably between 30 and 60 ° with the horizontal.
  • the fluid jets are shown schematically in figure 2 .
  • the speed of the fluid leaving the orifices 20 is predetermined so that the fluid, when it reaches its maximum altitude, comes into contact with the wire to cool it homogeneously over its entire circumference / periphery with the maximum thermal efficiency. .
  • the shape of the jet is advantageously controlled by the flow rates and preferably by diaphragm valves (denoted 74), thus allowing control of the thermal rendering at the periphery and in the longitudinal direction of the wire.
  • the fluid then falls back at the end of the stroke into a recovery tank (symbolically represented 27 in Fig. 1A ), usually located between the anticorrosive coating bath and the cooling system.
  • the cooling fluid can be water or else another type of medium such as a water / air, water / gas mixture, a heat-insulated fluid, an alcoholic fluid, or a liquid gas.
  • the projection head 18 will be able to design the projection head 18 so as to obtain the desired jet parameters.
  • it is designed so that the vertices of the water jets (at the tangent) impact the wire to respect the principles of fluid mechanics according to which, it is possible at this tangent, that the water jet dissociates perfectly and completely "surrounds" the wire in its circumference, which generates a very good cooling around the section of the wire.
  • the turbulence of the jets is almost zero, and consequently the transfers The temperature between the wire and the fluid is optimum, which allows perfect control of the cooling rate.
  • the cooling system 10 comprises, for each of the spray heads 18, a service valve 22 so as to open or close the supply of fluid to said spray head 18; and this selectively depending on whether the head is to be put into service or not.
  • the service valve 22 can be closed in order to stop the water supply to the head 18.
  • the projection head 18 In the event of a fault in the system. the projection head 18, the latter can be dismantled and replaced, or repaired.
  • the service valve also makes it possible to simply cut off the power supply to the head 18 if it is desired to intervene at the level of the rest of the installation, or if there is no wire in front of the head.
  • the cooling system 10 includes a purge means 30 which is associated with each of the spray heads 18. This is preferably a vacuum purge means.
  • the purge means 30 is designed so that its triggering allows the evacuation of fluid out of the projection head 18, with a view to stopping the projection of fluid at the level of the projection orifices 20. It is preferably designed to empty the nozzle. the entire volume of fluid contained in the head.
  • the system 10 is designed such that the triggering of the purge means 30 of a spray head 18 is coupled with the closing of the service valve 22 of the spray head 18 in question.
  • the purge means 30 allow immediate stopping of the water projection, if necessary. It is thus also called emergency purge means.
  • the fluid supply pressure to the projection head 18 is generally between 1 and 2 bar (absolute), for example of the order of 1.2 bar for use in gravity mode.
  • pressurized mode for example for the projection of fine water droplets, onto an air bed, of the fine mist type, could lead to pressures of up to approximately 10 bar.
  • a compressor (not shown) is preferably associated with manifold 12. This compressor also forms part of the water supply circuit of the production line.
  • the triggering of the purge means 30 of a projection head 18 generates a sudden drop in the pressure of the fluid in the projection head 18 so that the fluid ejection pressure at the corresponding ejection holes also drops suddenly.
  • the immediate effect is that of stopping the projection of fluid on the wire; it is also that of not generating any drops of fluid during this emergency stop.
  • the purge means 30 allow the instantaneous stopping of the flow of cooling fluid leaving the spray heads 18.
  • the establishment of the vacuum by the purge means is preferably carried out substantially simultaneously with the closing of the control valve. service 22.
  • the purge means 30 is preferably of the vacuum (or suction) type, that is to say it allows forced suction of cooling fluid out of the spray head.
  • the purge means 30 comprises a vacuum chamber 32, purge valves and a network of purge pipes, cooperating with a purge orifice 60 communicating with the internal fluid passage of the head 18.
  • Each of the Conduits of the network of conduits connects the vacuum chamber 32 to a respective spray head 18, via a dedicated purge valve.
  • the purge pipe network and the purge valves are not shown in detail on the Fig. 1 .
  • the figure 2 is a sectional view of the cooling system 10, at the level of one of the projection heads 18.
  • the power supply 12 the vacuum chamber 32, one of the purge lines 34 connecting the vacuum chamber 32 to the projection head 18 via one of the purge valves 36 (solenoid valve).
  • the purge valves 36 solenoid valve.
  • FIG. 2 To the right of the figure 2 , there is shown a metal wire 11 coated with a layer of alloy against corrosion (not shown) and a vertical arrow pointing upwards indicating the direction of travel of the wire 11.
  • the reference sign 40 designates a connecting piece associated with the projection head 18; the connection piece 40 comprises a body 40.1 with a first mechanical coupling 42 to the power supply unit 12.
  • a second mechanical coupling 52 is provided to allow mounting of the projection head 18 on the body 40.1.
  • the projection head 18 includes an internal passage 54 for the cooling fluid, which circulates from the manifold 12 through the fitting part 40.
  • the internal passage 54 extends from the second coupling 52 through the projection head 50 to terminate at the projection ports 20.
  • the first mechanical coupling 42 of the connecting piece 40 is made at the level of the fluid outlet 16 of the power supply unit 12 which allows a hydraulic connection between the chamber 14 of the power supply unit 12 and an internal passage 40.2 in the body. 40.1.
  • the fluid outlet 16 has for example the form of a connector which is designed to cooperate with the first mechanical coupling 42, so as to ensure both the attachment of the head 18 to the power supply unit 12 and the transfer of fluid.
  • the internal passage 40.2 opens out at the level of the second mechanical coupling 52, to supply the internal passage 54 of the projection head.
  • the first and second mechanical couplings 42 and 52 are fluid-tight couplings; these couplings can be of any suitable type, for example a conventional quick coupling, or even, if working under pressure, a clip-on and / or bolting connection (double fixing if necessary). Those skilled in the art will be able to envisage various embodiments for these sealed couplings.
  • the hydraulic connection between chamber 14 of the block supply and the internal passage 54, via the connection piece 40, is therefore a sealed hydraulic connection.
  • the service valve 22 associated with the projection head is produced as a pneumatic shutter 22 mounted on the body 40.1.
  • the pneumatic shutter 22 comprises an actuator mounted with a movable piston 23 terminating in a shutter member which, in the retracted position shown, leaves the internal passage 40.2 open for the fluid in the body 40.1; that is to say that the cooling fluid can flow from the manifold 12 to the projection head 18.
  • the closure member bears on a sealing seat 25 surrounding the internal passage 40.2 in the body 40.1, and thus closes the internal passage 40.2. In the closed configuration, water does not flow from the power supply 12 to the projection head 18.
  • the internal passage 54 of the projection head 18 comprises a supply prechamber 56 and projection conduits 58, 58 'and 58 ".
  • the supply prechamber 56 is not visible because it is in a plane behind that of the figure.
  • the supply prechamber 56 comprises a purge port 60 (in dotted lines) to which the purge means 30 is connected.
  • the inlets 62, 62 'and 62 "of each of the projection lines 58, 58' and 58" start from the outlet. feed prechamber 56.
  • the blast lines 58, 58 'and 58 terminateate at a blast port 20.
  • the internal passage 54 of the projection head 18 defines a casing 64 forming the lower part of the supply prechamber 56 and the purge orifice 60 is made at the level of this casing 64.
  • Each of the purge lines 34 and the purge solenoid valves 36 are dedicated to a respective projection head 18.
  • the purge line 34 starting from the vacuum chamber 32, is connected to the purge orifice 60 made at the level of the casing 64 located in the lower part of the supply prechamber 56.
  • the triggering of the emergency purge means 30 can be carried out for one or more cooling heads 18, depending on the planned intervention.
  • the purge means In the context of an incident, it may occur at the level of a single wire and then the purge means is triggered for a single projection head 18. As part of a maintenance operation, the initiation of the purge can be operated on for several purge heads.
  • the system advantageously comprises a control module 80 which is designed to control the actuation (opening / closing) of the service valves 22 and of the purge valves 36, as well as preferably the diaphragms 74 for regulating the flow rate at the outlet. level of tubes 58.
  • Control module 80 also monitors the pressure in chamber 14 of power supply 12, and vacuum in vacuum chamber 32, which is preferably on during operation of cooling system 10.
  • the control of the service valves 22 is done independently; each of the service valves can be controlled individually.
  • the purge valves 36 can also be controlled individually, so as to be able to intervene on a given head.
  • a purge valve 36 i.e. its opening
  • the control module is therefore advantageously configured so that an emergency purge instruction triggers, in a substantially concomitant manner, the opening of the purge valve and the closing of the service valve associated with the projection head 18.
  • the emergency purge instruction can be given automatically following the detection of an event by a sensor, or by intervention of an operator on a console or an emergency button.
  • the triggering of the purge means 30 therefore involves the opening of the purge solenoid valve 36 which allows the evacuation of fluid out of the internal passage 54 of the projection head 18.
  • the triggering of the purge means puts the chamber in hydraulic connection. vacuum 32 with the supply prechamber 56.
  • the pressure in the vacuum chamber 32 is at a value lower than atmospheric pressure, which generates a suction of fluid. outside the internal passage 54.
  • the pressure in the vacuum chamber can be set to a value between 0.5 bar and 0.2 bar.
  • the supply prechamber 56 from which the spray pipes 58, 58 'and 58 "leave is primarily emptied of fluid when the purge means 30 are triggered.
  • the spray pipes 58, 58' and 58" are favorably of identical section.
  • the corresponding inlets 62, 62 'and 62 are preferably grouped together at the level of the supply prechamber 56 with a view to sucking at the same time the fluid located in the projection ducts.
  • the internal passage 54 of the projection head 18 further comprises a reserve chamber 70 at the level of the projection head 50.
  • the supply prechamber 56 is hydraulically connected to the reserve chamber 70; the hydraulic connection is made by a passage with restricted section 72. Seen in the direction of movement of the fluid in the projection head 50, the supply prechamber 56 is located downstream of the reserve chamber 70. The section of the chamber reserve 70 is reduced with the approach of the restricted passage to the supply prechamber 56.
  • the system is designed so as to guarantee a controlled fluid pressure, in consideration of pressure losses; in particular, if we denote by Q1 the flow rate in the manifold 12, Q2 the flow rate in the reserve chamber 70 and Q3 the flow rate in the supply prechamber 56, we have Q1> Q2> Q3.
  • diaphragm valves shown diagrammatically 74, mounted on each projection pipe.
  • the projection conduits may be integral with the body of the projection head 18 or the attached parts.
  • the diaphragm valves can be designed to mount the spray pipes on the spray head.
  • the diaphragm valves can be motorized, which allows their adjustment remotely (via control 80) or alternatively, manual.
  • the figures 3 and 4 relate to two variants in which two identical power supply systems with their projection heads are used and positioned in opposition to the wires.
  • the systems are similar to the one presented above and designated 10.1 and 10.2.
  • the projection on both sides of the wire 11 will make it possible to improve the homogeneity of the cooling.
  • the two cooling systems are positioned at the same height, so that the same pipes produce jets of water 8 arriving at the same height on the wire.
  • the cooling system 10 'placed on the right in the figure is lower than that on the left. It is for example shifted by a distance corresponding to the half-distance between two jets 8 of the left-hand system10.1.
  • Another advantage of the present invention is its very small size.
  • the present cooling system can easily be fitted into existing installations, the free space of which is very limited, without the need to modify them.
  • the present system has been described in the context of continuous hot-dip galvanizing (Zn-based bath, Galfan® type, Zinc-Magnesium, or any other anti-corrosion metal alloy), for rolling steel wires and dip-coated. .
  • This app is just an illustration. It is clear to those skilled in the art that the present cooling system can be used for the projection of cooling fluid on wires, metallic or polymers, coated with various coatings, anticorrosion or for other purposes, metallic, organic, mineral, or chemical.

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  • Metallurgy (AREA)
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Claims (12)

  1. Kühlsystem für eine Drahtbeschichtungsanlage, wobei das System gekennzeichnet ist durch:
    eine Versorgungseinheit (12) mit einer Kammer (14) für ein Kühlfluid und eine Mehrzahl an Fluidausgängen (16);
    eine Mehrzahl an Spritzköpfen (18), die jeweils mit einer oder mehreren Öffnungen (20) zum Aufspritzen des Kühlfluids in Richtung auf einen zu kühlenden Draht (11) versehen sind, wobei jeder Spritzkopf mit einem entsprechenden Fluidausgang (16) verbunden ist, sodass ein sich bis zu der oder den Spritzöffnung/en hin erstreckender Innenkanal (54) des Spritzkopfs (18) mit Fluid versorgt wird;
    ein jedem Spritzkopf (18) zugeordnetes Betriebsventil (22), das geeignet ist, die Versorgung des Innenkanals (54) des Spritzkopfs mit Fluid selektiv zu steuern;
    eine jedem Spritzkopf (18) zugeordnete Ablassvorrichtung (30), die geeignet ist, bei ihrem Auslösen den Ablass des Fluids aus dem Innenkanal (54) zu ermöglichen, um das Aufspritzen von Fluid durch die Spritzöffnung/en (20) zu stoppen.
  2. Kühlsystem nach Anspruch 1, dadurch gekennzeichnet, dass die Ablassvorrichtung eine Ansaugvorrichtung (30) für Kühlfluid umfasst, um ein Zwangsansaugen von Kühlfluid aus dem Innenkanal (54) hinaus zu bewirken.
  3. Kühlsystem nach Anspruch 2, dadurch gekennzeichnet, dass die Ablassvorrichtung (30) für jeden Spritzkopf (18) eine Ablassleitung (34.1) umfasst, die den Spritzkopf über ein Ablassmagnetventil (36) mit der Ansaugvorrichtung, insbesondere einer Unterdruckkammer (32), verbindet.
  4. Kühlsystem nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass der Innenkanal (54) der Spritzköpfe eine Vor-Versorgungskammer (56) umfasst, die mit einer Ablassöffnung (60) verbunden ist, die mit der Ablassvorrichtung (30) zusammenwirkt, sowie Spritzleitungen (58, 58', 58"), die in den Spritzöffnungen (20) münden, wobei die Eingänge dieser Spritzleitungen von dieser Vor-Versorgungskammer ausgehen.
  5. Kühlsystem nach Anspruch 4, dadurch gekennzeichnet, dass die Spritzleitung oder die Spritzleitungen zwischen ihrem Eingang und Ausgang einen kontinuierlichen Querschnitt aufweist/aufweisen.
  6. Kühlsystem nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass ein Ventil (74), vorzugsweise nach Art einer Membran, zur individuellen Einstellung des Durchsatzes jeder Spritzleitung vorgesehen ist.
  7. Kühlsystem nach den Ansprüchen 4, 5 oder 6, dadurch gekennzeichnet, dass der Innenkanal (54) der Kühlköpfe einen Kasten bildet, der den unteren Teil der Vor-Versorgungskammer bildet, wobei die Ablassöffnung in Höhe dieses Kastens ausgeführt ist.
  8. Kühlsystem nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass der Innenkanal der Kühlköpfe ferner eine Fluidreservekammer umfasst, auf die ein verengter Abschnitt dieser Kammer nachgeschaltet folgt, auf welchen verengten Abschnitt die Vor-Versorgungskammer folgt.
  9. Kühlsystem nach Anspruch 8, dadurch gekennzeichnet, dass der Querschnitt der Reservekammer sich mit zunehmender Annäherung des verengten Abschnitts zur Vor-Versorgungskammer reduziert.
  10. Kühlsystem nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Aktivierung der Ablassvorrichtung an das Schließen des Betriebsventils gekoppelt ist.
  11. Kühlsystem nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass jeder Spritzkopf (18) abnehmbar an die Versorgungseinheit (12) montiert ist, vorzugsweise über ein Verbindungsstück (40), das mittels einer ersten dichten mechanischen Kupplung (42) an der Einheit (12) und mittels einer zweiten dichten mechanischen Kupplung (52) am Spritzkopf (18) befestigt ist, wobei das Verbindungsstück (40) einen Innenkanal (40.2) umfasst, der das Fluid vom Ausgang (16) zum Innenkanal (54) des Spritzkopfs hin (18) fördert.
  12. Kühlsystem nach Anspruch 11, dadurch gekennzeichnet, dass das jedem Spritzkopf (22) zugeordnete Betriebsventil (22) an das Verbindungsstück (40) montiert ist und ein Sperren oder Freigeben des Stroms durch den Innenkanal (40.2) hindurch ermöglicht.
EP18732813.3A 2017-06-28 2018-06-27 Kühlvorrichtung für verzinkten draht Active EP3645173B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU100329A LU100329B1 (fr) 2017-06-28 2017-06-28 Dispositif de refroidissement de fils galvanisés
PCT/EP2018/067323 WO2019002408A1 (fr) 2017-06-28 2018-06-27 Dispositif de refroidissement de fils galvanisés

Publications (2)

Publication Number Publication Date
EP3645173A1 EP3645173A1 (de) 2020-05-06
EP3645173B1 true EP3645173B1 (de) 2021-08-25

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EP18732813.3A Active EP3645173B1 (de) 2017-06-28 2018-06-27 Kühlvorrichtung für verzinkten draht

Country Status (6)

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EP (1) EP3645173B1 (de)
IL (1) IL271647A (de)
LU (1) LU100329B1 (de)
RU (1) RU2019142668A (de)
WO (1) WO2019002408A1 (de)
ZA (1) ZA202000311B (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853306A (en) * 1971-12-28 1974-12-10 Bethlehem Steel Corp Apparatus for quenching molten coatings
US3743535A (en) 1971-12-28 1973-07-03 Bethlehem Steel Corp Method of continuously quenching molten metal coatings
CH660755A5 (en) * 1984-02-22 1987-06-15 Daiichi Denko Kk Device for cooling a metal wire coated with a layer of molten metal
BE1014869A3 (fr) * 2002-06-06 2004-05-04 Four Industriel Belge Dispositif de refroidissement et/ou de rincage de fils et/ou
FR2940978B1 (fr) * 2009-01-09 2011-11-11 Fives Stein Procede et section de refroidissement d'une bande metallique en defilement par projection d'un liquide

Also Published As

Publication number Publication date
WO2019002408A1 (fr) 2019-01-03
LU100329B1 (fr) 2019-01-08
IL271647A (en) 2020-02-27
RU2019142668A3 (de) 2021-08-10
RU2019142668A (ru) 2021-07-28
EP3645173A1 (de) 2020-05-06
ZA202000311B (en) 2021-08-25

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