EP3993917A1 - KÜHLSTRECKE MIT VENTILEN UND DRUCKGEFÄßEN ZUR VERMEIDUNG VON DRUCKSCHLÄGEN - Google Patents
KÜHLSTRECKE MIT VENTILEN UND DRUCKGEFÄßEN ZUR VERMEIDUNG VON DRUCKSCHLÄGENInfo
- Publication number
- EP3993917A1 EP3993917A1 EP20733964.9A EP20733964A EP3993917A1 EP 3993917 A1 EP3993917 A1 EP 3993917A1 EP 20733964 A EP20733964 A EP 20733964A EP 3993917 A1 EP3993917 A1 EP 3993917A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- cooling devices
- cooling
- pressure vessel
- valves
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
-
- 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
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
Definitions
- Cooling section with valves and pressure vessels to avoid pressure surges
- the present invention is based on a device for cooling a metallic rolling good rolled in a rolling train,
- the device has several cooling devices to which water is supplied via a respective branch line and by means of which the water is brought onto the rolling stock,
- the valves are each assigned a drive via which the respective valve is controlled.
- Such a device is known, for example, from WO 2018/080 669 A2.
- this device is the
- Branch lines a single bypass line arranged in parallel.
- the bypass line is intended to avoid pressure surges that could otherwise occur in the event of a rapid interruption of the volume flow flowing through the branch lines.
- the bypass line must be actively opened and closed.
- a cooling section for a flat rolling stock is known, the cooling section having a plurality of spray bars, each of which is preceded by a valve.
- a device for cooling a metallic roll rolled in a rolling train is also known from WO 2013/143 902 A1.
- the cooling nozzles of the local cooling section are connected to a water reservoir via a line.
- the water supply to the cooling nozzles is controlled by a valve or several valves.
- There is a pressure vessel which is arranged upstream of the valve or valves as seen in the direction of flow of the water.
- the pressure vessel is partly filled with water and partly with air. In this embodiment, pressure surges, which can otherwise occur in the event of a rapid interruption of the volume flow flowing through the branch lines, can be avoided or at least reduced in strength due to the buffer effect of the pressure vessel.
- the rolling stock is cooled.
- Exact temperature control in the cooling section is customary in order to set the desired material properties and keep them as constant as possible.
- Several cooling devices are installed along the transport direction of the rolling stock, by means of which water is applied to at least one side of the rolling stock.
- the cooling devices can be designed as cooling bars, for example.
- the amounts of water applied via the cooling devices are adjusted via valves arranged upstream of the cooling devices. It is particularly problematic when the valves are closed quickly. Because if the valves are closed too quickly, pressure surges often occur, also known as pressure surges in specialist circles. In order to avoid excessive loads, the switch-off time is therefore usually limited to 1 second. This is true even if the valves could be closed more quickly.
- pneumatic valves are generally used. These can usually not be faster than 1 Switch second. In individual cases, however, shorter switching times of 0.6 seconds can also be achieved.
- WO 2013/143 902 A1 From WO 2013/143 902 A1 it is known to connect a pressure vessel in the feed line to the cooling section.
- This pressure vessel is mainly used to keep the pressure in the supply of the cooling section constant, but also causes a reduction in pressure surges to a certain extent.
- the pressure vessel there is designed for a volume of several cubic meters. Specifically mentioned in WO 2013/143 902 A1 is a typical volume between 10 and 20 cubic meters.
- the object of the present invention is to provide a device for cooling a metallic rolling stock which is rolled in a rolling train and which has superior operating properties.
- a device for cooling a metallic rolling stock that is rolled in a rolling train having the features of claim 1.
- Advantageous configurations of the device are the subject of dependent claims 2 to 6.
- a device for cooling a metallic rolling stock of the type mentioned above that is rolled in a rolling train is configured by
- cooling devices form several groups, each of which has its own proprietary pressure vessel assigned,
- Connection point is connected to a respective feed line, via which the water is fed to the stub lines of the cooling devices of the corresponding group, so that the respective Connection point is upstream of the valves of the respective group of cooling devices.
- the device can be designed as a cooling section which is arranged downstream of the rolling train.
- the device can be designed as a group of inter-stand cooling systems, one of the inter-stand cooling systems being arranged between each two roll stands of the rolling train.
- the device can also be arranged upstream of the rolling train, for example if the device is angeord net between (at least) one roughing stand and a multi-stand finishing train. Mixed forms are also possible.
- the rolling stock often consists of steel.
- it can be a flat rolled product, i.e. a strip or heavy plate.
- the cooling devices can alternatively apply water to the flat rolling stock only on the upper side, only on the lower side or both on the upper side and on the lower side.
- the amount of water they apply to the rolling stock can be individually adjusted via their valves. It is possible for the groups of cooling devices to be "real" groups of cooling devices, each comprising more than one cooling device. In many cases, however, at least some of the groups of cooling devices each comprise only a single cooling device. In particular, it is It is possible for all groups to each comprise only a single cooling device, in which case the groups of cooling devices are degenerate.
- the drives assigned to the valves can be designed as required.
- they can be designed as electrical drives, for example as stepper motors.
- the pressure vessel that is proprietarily assigned to a respective group of cooling devices has a vessel volume.
- the vessel volume is preferably between nx 20 1 and nx 200 1 where n is the number of cooling devices in the respective group.
- the vessel volume is particularly preferably between nx 50 1 and nx 125 1.
- a respective volume flow flows in the respective supply line, provided that the valves of the cooling devices of the respective group are all fully open.
- the respective flow resistance is preferably dimensioned such that the respective volume flow, if it flows over the respective flow resistance, causes a pressure drop that is at least 25% and a maximum of 75% of the respective line pressure, in particular about half the respective line pressure .
- minor deviations are acceptable.
- a rolling stock 1 is rolled in a rolling train. Only the last roll stand 2 of a multi-stand rolling train is shown in FIG.
- the rolling stock 1 is often a fla ches rolling stock, so a strip or a heavy plate.
- the rolling stock 1 can, however, also have a different format. For example, it can be a profile or a rod-shaped rolling stock 1.
- the rolling stock 1 often consists of steel, sometimes of aluminum and in rare cases of another metal or a corresponding alloy.
- a cooling section 3 is arranged downstream of the rolling train.
- the rolling stock 1 is cooled in the cooling section 3.
- the cooling section 3 is thus a device for cooling the rolled metal rolled in the rolling train 1.
- the term "cooling section” is therefore used in the sense of the device mentioned.
- the present invention can also be implemented if the device is arranged within the rolling train, that is, between the rolling stands 2 of the multi-stand rolling train. Furthermore, it can also be implemented then bar when the device is upstream of the rolling train.
- the cooling section 3 has a plurality of cooling devices 4.
- Water 5 is applied to the rolling stock 1 by means of the cooling devices 4.
- the cooling devices 4 are generally designed as spray bars which apply the water 5 over the entire width of the rolling stock 1 onto the rolling stock 1.
- the water 5 in its entirety is fed to the cooling section 3 via a supply line 6.
- the water 5 is distributed until it enters stub lines 7 through which the water 5 is supplied to the respective cooling device 4.
- a (1) valve 8 is arranged, by means of which the amount of water 5 that the respective cooling device 4 per time unit is fed, can be adjusted.
- the amount of water 5 that is supplied to the respective cooling device 4 per unit of time represents a respective water flow.
- FIG. 1 a total of eight cooling devices 4 are shown, wherein in the illustration of Figure 1, a part of thedeein devices 4 brings the water 5 from above onto the rolling stock 1 and another part of the cooling devices 4 what water 5 from below on the rolling stock 1 applies. Furthermore, the cooling devices 4 are arranged in a staggered manner one behind the other as seen in the transport direction x of the rolling stock 1.
- these facts are purely exemplary. More or fewer than eight cooling devices 4 can easily be present.
- the water 5 to be applied to the rolling stock 1 exclusively from above or exclusively from below by means of the cooling devices 4. If the rolled product 1 is a flat rolled product, it is furthermore possible, as shown in the illustration in FIG.
- the valves 8 is assigned to a drive 9 as an actuator.
- the drives 9 are designed as electric drives according to the Dar position in FIG.
- the respective valve 8 is controlled via the respective drive 9. This situation is also the case with the valves 8 in FIG. However, this is not shown in FIG. 1 in order not to overload FIG. Due to the design of the actuating devices as electrical drives, switching times can be implemented for the valves 8 that are well below 1 second, for example 0.2 seconds or less. Furthermore, electric drives can be set very quickly and precisely. This makes both a quick one as well as a precise setting of each valve position is possible.
- the electric drives can be designed as stepping motors, for example. Stepper motors can be easily adjusted by 90 ° in less than 0.2 seconds. This angle also corresponds to the angle of rotation of a conventional valve 8 between the completely closed and the completely open position. Thus, in a time of 0.2 seconds and less, the respective valve 8 can be transferred from the fully closed position to the fully open position and vice versa. Furthermore, the adjustment in a stepper motor usually takes place in angular steps that are well below 1 ° (mechanically), for example at 0.1 ° (or a similarly small angle). In this case, the respective valve 8 can be adjusted between the fully closed and fully open positions in steps of 0.1 ° (or a similarly small angle). Furthermore, the control electronics of an electric drive are sufficiently simple and inexpensive. Wear and failure risk are many times smaller than with a pneumatic drive. The required encapsulation to protect against splash water and the like (for example in protection class IP 65) can be easily implemented. This applies both to the respective electric drive itself and to its control electronics.
- the cooling devices 4 continue to form several groups as shown in FIG. A separate pressure vessel 10 is assigned to each group in a proprietary manner.
- the term "proprietary assigned” is intended to mean that the respective pressure vessel 10 interacts with the cooling devices 4 of the respective group and only interacts with these cooling devices 4.
- the respective pressure vessel 10 is connected to a respective connection point 11 to a respective supply line 12. Via the respective supply line 12, the water 5 is fed to the branch lines 7 of the cooling l devices 4 supplied to the corresponding group. Seen in the direction of flow of the water 5, the respective connection point 11 is thus arranged upstream of the valves 8 of the respective group of cooling devices 4.
- the water 5 is not fed to the stub lines 7 from other cooling devices 4 via the respective supply line 12. Seen in the flow direction of the water 5, the respective connection point 11 is therefore not upstream of the valves 8 of other groups of cooling devices 4.
- the respective pressure vessel 10 thus defines the respective group of cooling devices 4: All cooling devices 4, the water 5 of which flows via the respective connection point 11, form one (1) group of cooling devices 4. All other cooling devices 4 do not belong to this group.
- the respective connection point 11 for the respective pressure vessel 10 should be arranged as close to the valves 8 of the respective group as possible. If - see on the left in FIG. 3 - the respective group of cooling devices 4 comprises only a single cooling device 4, the respective connection point 11 should thus be arranged as close as possible to the valve 8 of this cooling device 4. If - see in Figure 3 right - the respective group of cooling devices 4 comprises several cooling devices 4, the respective connection point 11 should be arranged as close as possible to a distribution point 13 at which the supply line 12 to thedeein directions 4 of the respective Group branched out for the first time.
- some of the groups of cooling devices 4 each include only a single cooling device 4. In the illustration of FIG. 3, this is specifically the case with the two cooling devices 4 shown on the left. In these cases, the respective feed line 12 is identical to the respective stub line 7.
- the groups of cooling devices 4 each comprise a plurality of cooling devices 4. In the illustration of FIG. 3, this is specifically the case with the two cooling devices 4 shown on the right. In these cases the respective lige supply line 12 vorgeord the respective stub lines 7 net.
- the decisive criterion for the arrangement of the pressure vessels 10 is the amount of water 5 that is between the respective connection point 11 and the respective valves 8 or - in the case of a single downstream valve 8 - the respective valve 8 - is located. This is because this amount of water cannot be diverted into the corresponding pressure vessel 10. This amount must therefore be braked directly and quickly with a rapid closing of the respective valves 8 in front of the respective valves 8. As a rule, this is not critical if the distances between the respective valves 8 and the respective pressure vessel 10 are small enough, for example 10 m or less, in particular less than 5 m. This should be illustrated using an example for a single valve 8.
- a 10 m long water column does not have to be braked with 1.0 times the acceleration due to gravity, but a 5 m long water column with the 1.5 times the acceleration of the earth.
- this water column generates a pressure of 0.75 bar in 0.2 seconds when braking from 3.0 m / s to 0 m / s.
- pressure vessels 10 are used to equalize the water budget. They should therefore be able to take up water 5 from the supply line 12 to which they are connected, on the one hand, and be able to feed water 5 back into the supply line 12 in the event of a sudden increase in the water demand, on the one hand. So that the pressure vessels 10 can take this water 5 and feed it back, the pressure vessels 10 are respectively partially filled with water 5 and partially with air 14 in accordance with the illustration in FIG. As a rule, a degree of filling F of water 5 (see FIG. 4) of about 50% should be aimed for. However, certain deviations - for example between 40% and 60% - are quite possible. The pressure vessel 10 are therefore intended to be partially filled with water 5 and partially with air 14 during operation.
- the pressure vessels 10 can have a respective air valve 15, for example. Via the respective air valve 15, air 14 can be supplied to the respective pressure vessel 10 or air 14 can be discharged from the respective pressure vessel 10.
- the respective air valve 15 is a manually operated check valve (such as the valve of a bicycle or other road vehicle with air-filled tires).
- the respective pressure vessel 10 preferably has a level indicator and / or a pressure indicator.
- the level indicator can, for example, be a simple sight glass, the pressure indicator a common manometer.
- the respective air valve 15 of a control device (not shown) of the cooling section 3 can be controlled.
- the respective air valve 15 is preferably divided into two valve paths, one of the two valve paths for refilling air 14 in the respective pressure vessel 10 being connected to a compressed air supply and the other of the two valve paths for releasing air 14 from the respective pressure vessel 10 has an outlet to the environment. Furthermore, in this case the respective degree of filling F and / or the pressure prevailing in the respective pressure vessel 10 are preferably detected by measurement and transmitted to the named control device.
- the respective pressure vessel 10 Through the respective pressure vessel 10, the amount of water moving in the respective supply line 12 is thus gently braked Stand. Due to the fact that the groups of cooling devices 4 are generally relatively small - usually not more than six to ten cooling devices 4 - the pressure vessels 10 can still be made relatively small. This is explained below in connection with FIGS. 4 to 6 for an embodiment in which the respective group of cooling devices 4 comprises only a single cooling device 4. However, the corresponding explanations can also be applied if the respective group of cooling devices 4 comprises several cooling devices 4. In this case, the following statements must be modified to the effect that uniform control of the valves 8 of the respective group is assumed.
- the respective pressure vessel 10 were not present, a high pressure surge would occur with the closing of the respective valve 8, since the respective volume flow V flowing in the respective supply line 12 would have to be abruptly reduced to zero. Due to the respective pressure vessel 10, the respective volume flow V can, however, be deflected in the respective pressure vessel 10. As a result, the respective pressure vessel 10 is filled further beyond its previous filling level F. However, by filling the respective pressure vessel 10, the air 14 located in the respective pressure vessel is compressed, so that the air pressure there increases. The increased air pressure opposes an increasing resistance to the further supply of water 5 into the respective pressure vessel. The respective degree of filling F therefore initially increases from the point in time t0, but then reaches a maximum and then decreases again.
- the entire previously flowing respective volume flow V must be recorded as shown in FIG. If the respective volume flow V were retained unchanged, the respective pressure vessel would be corresponding to the illustration in FIG 10, calculated from time t0, for example completely filled after 0.5 seconds. In 0.5 seconds, 50% of the volume of the respective pressure vessel 10 would flow into the respective pressure vessel 10. Accordingly, 100% of the volume of the respective pressure vessel 10 would flow into the respective pressure vessel 10 in 1 second. According to the illustration in FIG. 4, a quotient of the respective vessel volume (unit: liter or cubic meter) and the respective volume flow V (unit: liter / second or cubic meter / second) is 1 second. Certain deviations from this value (1 second) are possible.
- the quotient mentioned should preferably be in the range between 0.2 seconds and 2.0 seconds. In practice, this corresponds to a volume between 20 1 and 200 1 for an individual cooling device 4, mostly in the range between 50 1 and 125 1 , in particular about 100 1. If the group comprises several cooling devices 4, the volume values mentioned must be scaled accordingly.
- the volume flow V through the supply line 12, measured at the respective connection point 11 and shown in FIG. 5, causes a pressure drop dr at a respective flow resistance 16 on its way from the respective connection point 11 to the respective pressure vessel 10, which occurs between the respective connection point 11 and the respective pressure vessel 10 is arranged.
- the pressure drop dr is preferably approximately half as great as the respective line pressure pO.
- the respective line pressure p must rise abruptly to a value which corresponds approximately to 1.4 times to 1.6 times the value pO, i.e. approximately 1.5 times.
- the pressure drop dr is in practice mostly of the order of magnitude of 1 bar. The respective line pressure p then falls again.
- the respective flow resistance 16 can be adjusted as a result by appropriate dimensioning of the respective connection line between the respective connection point 11 and the respective pressure vessel 10, in particular by dimensioning the cross section of the entire respective connection line or the cross section of a section of the respective connection line. Suitable dimensioning of the flow resistance 16 is in particular one
- the present invention has many advantages.
- pressure surges can be avoided, although the valves 8 are switched very quickly (with switching times well below 1 s).
- the influence of the pressure vessels 10 on the amounts of water actually supplied to the cooling devices 4 can be taken into account with a corresponding model of the cooling section 3 or simply compensated for using basic automation of the cooling section 3.
- the pressure vessels 10 further reduce pressure oscillations within the fluid power system (consisting of the supply line 6, the supply lines 12 and the stub lines 7).
- the regulation of pumps that deliver the water 5 is simplified. This is especially true when pressure measurements are used to control the pumps.
- Druckein breaks when switching on valves 8 are reduced, since in this case water 5 from the pressure vessels 10 into the corresponding supply lines 12 is fed.
- the design of the drives 9 as electrical drives enables simple Way a reliable and fast control of the valves
- connection points 12 supply lines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19184168.3A EP3760326A1 (de) | 2019-07-03 | 2019-07-03 | Kühlstrecke mit ventilen und druckgefässen zur vermeidung von druckschlägen |
| PCT/EP2020/066970 WO2021001162A1 (de) | 2019-07-03 | 2020-06-18 | KÜHLSTRECKE MIT VENTILEN UND DRUCKGEFÄßEN ZUR VERMEIDUNG VON DRUCKSCHLÄGEN |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3993917A1 true EP3993917A1 (de) | 2022-05-11 |
| EP3993917C0 EP3993917C0 (de) | 2023-08-09 |
| EP3993917B1 EP3993917B1 (de) | 2023-08-09 |
Family
ID=67145724
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19184168.3A Withdrawn EP3760326A1 (de) | 2019-07-03 | 2019-07-03 | Kühlstrecke mit ventilen und druckgefässen zur vermeidung von druckschlägen |
| EP20733964.9A Active EP3993917B1 (de) | 2019-07-03 | 2020-06-18 | Kuehlstrecke mit ventilen und druckgefaessen zur vermeidung von druckschlaegen |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19184168.3A Withdrawn EP3760326A1 (de) | 2019-07-03 | 2019-07-03 | Kühlstrecke mit ventilen und druckgefässen zur vermeidung von druckschlägen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US12409483B2 (de) |
| EP (2) | EP3760326A1 (de) |
| JP (1) | JP7318023B2 (de) |
| KR (1) | KR102714836B1 (de) |
| CN (1) | CN114040821A (de) |
| MX (1) | MX2021015940A (de) |
| WO (1) | WO2021001162A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1107922A1 (ru) | 1982-12-24 | 1984-08-15 | Донецкий Ордена Трудового Красного Знамени Политехнический Институт | Устройство дл охлаждени проката |
| SU1411070A1 (ru) | 1987-07-25 | 1988-07-23 | Московский институт стали и сплавов | Устройство дл охлаждени проката |
| JPH064170B2 (ja) * | 1988-01-22 | 1994-01-19 | 石川島播磨重工業株式会社 | 金属板冷却用ノズル |
| US4949656A (en) * | 1988-02-01 | 1990-08-21 | The Texas A&M University System | Distribution manifold for mobile span-and-tower irrigation systems |
| EP2644718A1 (de) * | 2012-03-27 | 2013-10-02 | Siemens Aktiengesellschaft | Verfahren zur Druckstabilisierung |
| DE102012215599A1 (de) * | 2012-09-03 | 2014-03-06 | Sms Siemag Ag | Verfahren und Vorrichtung zur dynamischen Versorgung einer Kühleinrichtung zum Kühlen von Metallband oder sonstigem Walzgut mit Kühlmittel |
| US9468940B2 (en) * | 2012-11-13 | 2016-10-18 | Cnh Industrial Canada, Ltd. | Adjustable orifice valve and calibration method for ammonia applicator system |
| EP2767353A1 (de) * | 2013-02-15 | 2014-08-20 | Siemens VAI Metals Technologies GmbH | Kühlstrecke mit Power Cooling und Laminarkühlung |
| CN204503780U (zh) | 2015-01-30 | 2015-07-29 | 中冶南方工程技术有限公司 | 一种热轧棒材水冷却装置供水系统 |
| US10240099B2 (en) | 2016-10-27 | 2019-03-26 | Uop Llc | Processes for producing a fuel from a renewable feedstock |
-
2019
- 2019-07-03 EP EP19184168.3A patent/EP3760326A1/de not_active Withdrawn
-
2020
- 2020-06-18 JP JP2021577112A patent/JP7318023B2/ja active Active
- 2020-06-18 CN CN202080048919.1A patent/CN114040821A/zh active Pending
- 2020-06-18 US US17/623,923 patent/US12409483B2/en active Active
- 2020-06-18 EP EP20733964.9A patent/EP3993917B1/de active Active
- 2020-06-18 KR KR1020217043390A patent/KR102714836B1/ko active Active
- 2020-06-18 WO PCT/EP2020/066970 patent/WO2021001162A1/de not_active Ceased
- 2020-06-18 MX MX2021015940A patent/MX2021015940A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022538856A (ja) | 2022-09-06 |
| KR102714836B1 (ko) | 2024-10-07 |
| KR20220029599A (ko) | 2022-03-08 |
| JP7318023B2 (ja) | 2023-07-31 |
| CN114040821A (zh) | 2022-02-11 |
| US12409483B2 (en) | 2025-09-09 |
| US20220362823A1 (en) | 2022-11-17 |
| EP3993917C0 (de) | 2023-08-09 |
| EP3760326A1 (de) | 2021-01-06 |
| EP3993917B1 (de) | 2023-08-09 |
| WO2021001162A1 (de) | 2021-01-07 |
| MX2021015940A (es) | 2022-02-03 |
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