WO2015161995A1 - Bestimmung der masse einer metallischen schmelze - Google Patents
Bestimmung der masse einer metallischen schmelze Download PDFInfo
- Publication number
- WO2015161995A1 WO2015161995A1 PCT/EP2015/057177 EP2015057177W WO2015161995A1 WO 2015161995 A1 WO2015161995 A1 WO 2015161995A1 EP 2015057177 W EP2015057177 W EP 2015057177W WO 2015161995 A1 WO2015161995 A1 WO 2015161995A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transport vehicle
- metallurgical vessel
- mass
- metallic melt
- determined
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
- G01G19/086—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles wherein the vehicle mass is dynamically estimated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/12—Travelling ladles or similar containers; Cars for ladles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/04—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles
- G01G19/045—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles for weighing railway vehicles in motion
Definitions
- the invention relates to a method for determining the mass of a metallic melt in a vessel for receiving the
- Slag buckets, scrap baskets or iron pans used.
- force sensors so-called load cells, installed in the transport vehicle.
- loads are detected by means of bending of the load cells, usually via resistance changes of strain gauges.
- load cells are expensive to buy.
- load cells are very sensitive measuring instruments, which are destroyed again and again by use in the hot areas.
- maintenance of load cells is expensive because load cells must be cyclically recalibrated. Calibration is only possible during standstill of the system.
- test weights must be kept available whose masses are typically between 10 t and 100 t and which are calibrated successively on test bars
- Weighing devices mean, for example, that award ⁇ materials are not dosed in the right amount. This leads to after-treatment z. As in the secondary metallurgy, which must be planned in the short term and thereby lead to significant additional costs and lower productivity. Furthermore, erroneously measuring weighing devices can lead to overfilling of vessels and as a result to a spillover of liquid metal melt from the vessels. This poses a significant security risk for persons in the
- US 4878551 A discloses a trolley for transporting a metallurgical vessel for a metallic melt and a weighing system with at least one weighing cell sensor for weighing the metallurgical vessel and its contents.
- US 2013/0238298 A1 discloses a device and a
- Speed of the train as well as acceleration and traction of each rail vehicle is determined and estimated the masses of rail vehicles on the basis of a dynamic model of the train.
- the invention is based on the object, an improved method for determining the mass of a metallic
- Metallic melt suitable metallurgical vessel parameters of a loaded with the unfilled metallurgical vessel transport vehicle during acceleration of the transport vehicle are determined, the parameters at least one speed of the transport vehicle, an acceleration of the transport vehicle and a
- Transport vehicle determined.
- the determined parameters are transferred to a process model and the mass of the metallic melt is determined by means of the process model and an equation of motion of the transport vehicle, the metallurgical vessel and the metallic melt
- Design data of the transport vehicle determined.
- acceleration is used here and throughout the document in its physical definition
- Speed change is used, and thus includes both speed changes, the amount of a
- the invention makes use of the fact that the mass of the transport vehicle can be determined from the speed and the acceleration of the movement of the transport vehicle and a motor drive torque generating this movement by means of an equation of motion for this movement and design data of the transport vehicle entering the motion equation, since the equation of motion contains them Sizes (mass, speed, acceleration, motor drive torque) and relates to each other.
- the speeds, accelerations and motor drive torques are in each case during the transport of the unfilled and filled with metallic melt metallurgical vessel determined.
- Transport vehicle and the laden with the filled metallurgical vessel transport vehicle determined. From the
- the invention thus makes it possible to determine the mass of a metallic melt in a metallurgical vessel solely from kinematic data of transports of the metallurgical vessel and motor drive torques required for these transports as well as design data of the transport vehicle.
- no costly and expensive load cells and test weights or an exposed hot areas adapted expensive sensors are needed particularly advantageous. This eliminates cooling air blower to limit a
- the inventive method also allows Kali ⁇ bration by empty runs during production, which do not require manual intervention or production stoppages. Overall, the method allows a
- Transport vehicle measured or read from frequency converter data of the transport vehicle.
- This embodiment of the invention takes advantage of the fact that a motor drive torque from the motor current and / or the motor voltage and the engine speed or a Drive power can be determined and that the motor current and the motor speed can be found in the frequency converter data of a frequency inverter feeding the motor.
- a further embodiment of the invention provides that the parameters are determined several times during the acceleration of the transport vehicle.
- the transport of the metallurgical vessel filled with the metallic melt can already be adapted to the filling.
- the accelerations of the metallurgical vessel can be adapted to the filling so that spilling over of metallic melt is avoided.
- a further embodiment of the invention provides that the mass of the metallic melt is determined by means of the process model and the equation of motion using a least squares method or a recursive least squares method.
- a further embodiment of the invention provides that the mass of the unfilled metallurgical vessel is determined and / or the mass of the unloaded transport vehicle is determined.
- a repeated determination of the mass of the unfilled metallurgical vessel advantageously makes it possible to draw conclusions about the degree of wear, in particular the bricking state of the metallurgical vessel.
- an identification system is used by means of which a metallurgical vessel is assigned a mass determined for the unfilled metallurgical vessel. This advantageously enables a systematic monitoring of the degrees of wear, in particular of the lining conditions of all metallurgical vessels.
- a wear of the metallurgical vessel is preferably monitored by means of the identification system.
- Walling state allows advantageous to adjust the filling of a metallurgical vessel its fillable volume, since the wear changes the fillable volume of the metallurgical vessel.
- a further embodiment of the invention provides that a filling level of the metallic melt in the metallurgical vessel is determined on the basis of geometric data of the metallurgical vessel and properties of the metallic content and the determined mass of the metallic melt.
- the determination of the level height advantageously makes it possible to adapt the transport of the metallurgical vessel to the filling level, in order to prevent spilling over of the metallic melt from the metallurgical vessel during transport.
- the metallurgical vessel is formed as a steel pan, and / or that the metallic melt is an iron or
- Molten steel is, and / or that the transport vehicle as a rail vehicle, in particular as a Ladle Transfer Car or as a slag transport vehicle (a so-called Slagpot Transfer Car) is formed.
- the transport vehicle as a rail vehicle, in particular as a Ladle Transfer Car or as a slag transport vehicle (a so-called Slagpot Transfer Car) is formed.
- the invention further provides a computer program for
- FIG. 1 is a schematic side view of a transport vehicle loaded with a metallurgical vessel shown in section
- Figure 1 shows a side view of a with a
- the metallurgical vessel 1 laden transport vehicle 3.
- the metallurgical vessel 1 is formed as a steel pan and shown in a sectional view.
- Transport vehicle 3 is designed as a rail vehicle, a so-called Ladle Transfer Car, and has a
- Drive system comprising at least one motor 5, at least one gear 7 and drive wheels 9. Furthermore, the transport vehicle 3 on the drive side, a roof 11 and optionally a wheel 13 for guiding a cable trailing cable.
- the transport vehicle 3 furthermore
- Vessel identification system 15 and the metallurgical vessel 1 has a legible by the vessel identification system 15 identification element 17.
- Transport vehicle 3 is in each case by means of a
- Equation of motion of the loaded with the unfilled or filled metallurgical vessel 1 transport vehicle. 3 determined.
- Transport vehicle 3 with positive speed for example, the following simplified equation of motion is used:
- Unfilled metallurgical vessel 1 loaded transport vehicle 3 m had the mass of the metallic melt in the filled metallurgical vessel 1, R the radius of each of the drive wheels 9, x the speed of the transport vehicle 3, x the acceleration of the transport vehicle 3, d v in with the speed incoming friction torque, d c an independent of the speed incoming friction torque, M mot motor drive torque of a motor 5, i a
- the mass of the material loaded with the metallurgical vessel 1 becomes Transport vehicle 3 each determined in the unfilled and in the filled state of the metallurgical vessel 1.
- Transport vehicle 3 each determined in the unfilled and in the filled state of the metallurgical vessel 1.
- t i respectively a speed measurement x t for the speed x, an acceleration measurement x i for the acceleration x and a drive torque measured value M mot i for one
- Equation [3] is considered to be a system of equations overruled by the plurality n of measurement times t i
- unfilled metallurgical vessel 1 a value for the mass m 0 and in the case of transport of the filled metallurgical vessel 1, a value for the mass m 0 + m load determined.
- FIG. 2 shows a result value course m (t) of a
- Measured values also increase the numbers of entries of the matrix S and the column vector y, whereby the result value m quickly approaches the actual mass loaJ .
- FIG. 3 shows a block diagram of a determination of the
- Motor drive torque of a motor 5 of the transport vehicle 3 can be determined, a process model 21 supplied, which contains the parameters used for the calculation of the result value m, in particular the speed measurement values,
- Transport vehicle 3 eg, the mass moments of inertia and radii of the wheels and the number of motors 5.
- the determined result value m is expressed as an output value 25
- Result value m is determined and output as a change value 29.
- the change value 29 is determined by first a result value difference 31 between a
- the transport vehicle 3 then receives, for example via a higher-level control system, a move command to a
- the drive data 19 and measured values are from existing systems such.
- Drive data 19 at least one motor current and an engine speed and / or a total recorded power of the drive system is detected in order to determine motor drive torques.
- a vehicle control calculates from the recorded measurement data and vehicle-specific
- the vehicle control After completion of the filling of the metallurgical vessel, the vehicle control receives the command, the recording location leave and go to the place of delivery.
- a value for the mass m 0 + loaJ analogous to the determination of the value for the mass m 0 of the laden with the unfilled metallurgical vessel 1
- the algorithms for calculating the unknown mass can be implemented either in the vehicle control or in a higher-level automation system.
- Vehicle control can be arranged in the transport vehicle 3 or outside the transport vehicle 3.
- the vessel identification system 15 is used to identify and distinguish metallurgical vessels 1.
- each metallurgical vessel 1 is provided with a clearly identifying marking element 17, which of the
- Vessel identification system 15 is readable.
- Automation or data processing system transmitted and evaluated by this By knowing or determining the mass of the unloaded transport vehicle 3 can be at each use of a metallurgical vessel 1 whose
- Curb weight determined and thus advantageously continuously a bricking state of this metallurgical vessel 1 are tracked and monitored. Based on the geometric data of the metallurgical vessel 1 and the properties of the metallic content and the determined result value m for the mass loaJ
- Metallic melt in the metallurgical vessel 1 can also be determined a level height of the metallic melt in the metallurgical vessel 1.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016561383A JP6526709B2 (ja) | 2014-04-07 | 2015-04-01 | 溶融金属の質量の決定 |
| CN201580017951.2A CN106457367B (zh) | 2014-04-07 | 2015-04-01 | 确定金属熔体的质量 |
| KR1020167030932A KR102398475B1 (ko) | 2014-04-07 | 2015-04-01 | 금속 용융물의 질량 판정 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14163705.8 | 2014-04-07 | ||
| EP14163705.8A EP2930478A1 (de) | 2014-04-07 | 2014-04-07 | Bestimmung der Masse einer metallischen Schmelze |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015161995A1 true WO2015161995A1 (de) | 2015-10-29 |
Family
ID=50479031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2015/057177 Ceased WO2015161995A1 (de) | 2014-04-07 | 2015-04-01 | Bestimmung der masse einer metallischen schmelze |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2930478A1 (de) |
| JP (1) | JP6526709B2 (de) |
| KR (1) | KR102398475B1 (de) |
| CN (1) | CN106457367B (de) |
| WO (1) | WO2015161995A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340040B (zh) * | 2017-07-10 | 2019-06-18 | 浙江大学 | 一种基于分布参数模型的感应电炉铁水在线称重方法 |
| CN109307547B (zh) * | 2017-07-28 | 2023-06-27 | 通用电气公司 | 医疗检测系统及其移动床板的负重测量方法 |
| CN107830922A (zh) | 2017-10-12 | 2018-03-23 | 灵动科技(北京)有限公司 | 用于智能移动行李箱的自称重方法 |
| DE102018200784A1 (de) * | 2018-01-18 | 2019-07-18 | Robert Bosch Gmbh | Transportvorrichtung, insbesondere Kinderwagen mit Masseschätzung |
| CN109719288A (zh) * | 2018-12-28 | 2019-05-07 | 合肥工大高科信息科技股份有限公司 | 铁水运输控制方法、后端及前端 |
| EP3992310A1 (de) * | 2020-11-03 | 2022-05-04 | Primetals Technologies Austria GmbH | Verfahren und vorrichtung zum abgiessen von metallschmelze aus einem metallurgischen gefäss |
| KR102545197B1 (ko) | 2022-10-25 | 2023-06-21 | 주식회사 장원엔지니어링 | 토페도카의 계량장치 |
| CN118699299B (zh) * | 2023-03-27 | 2025-11-04 | 上海梅山钢铁股份有限公司 | 一种倒罐翻铁过程中铁包中铁水量测量方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878551A (en) * | 1988-11-18 | 1989-11-07 | Steel Equipment Specialists, Inc. | Ladle transfer car with weighing system |
| US20130238298A1 (en) * | 2012-03-12 | 2013-09-12 | Lsis Co., Ltd. | Apparatus and method for estimating railway vehicle masses |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4876211A (de) * | 1972-01-14 | 1973-10-13 | ||
| JPH03199909A (ja) * | 1989-12-27 | 1991-08-30 | Sumitomo Metal Ind Ltd | 熱間でのスラグ厚さ測定方法 |
| JPH0741404B2 (ja) * | 1993-04-02 | 1995-05-10 | イントカスト・ゲーエムベーハー・フォイヤーフェストプロドゥクテ・ウント・ギースヒルフスミッテル | 取鍋の耐火性ライニングの製造法 |
| JPH09182958A (ja) * | 1995-12-28 | 1997-07-15 | Kusano Sangyo Kk | 溶湯取鍋の自動搬送装置 |
| JP2000062913A (ja) * | 1998-08-20 | 2000-02-29 | Murata Mach Ltd | 自走台車システム |
| JP2002081989A (ja) * | 2000-09-06 | 2002-03-22 | Aisin Seiki Co Ltd | 車両重量推定装置 |
| JP3821001B2 (ja) * | 2002-02-06 | 2006-09-13 | アイシン精機株式会社 | 車両重量推定装置 |
| DE102006012246A1 (de) * | 2005-03-17 | 2007-03-15 | Continental Teves Ag & Co. Ohg | Verfahren und Regelsystem zum Stabilisieren eines Fahrzeugs |
| JP5026302B2 (ja) * | 2008-02-19 | 2012-09-12 | 新日本製鐵株式会社 | 秤量機付き取鍋台車 |
| JP5612967B2 (ja) * | 2010-08-27 | 2014-10-22 | ダイハツ工業株式会社 | 出湯量及び配湯量管理システム |
-
2014
- 2014-04-07 EP EP14163705.8A patent/EP2930478A1/de not_active Withdrawn
-
2015
- 2015-04-01 JP JP2016561383A patent/JP6526709B2/ja active Active
- 2015-04-01 KR KR1020167030932A patent/KR102398475B1/ko active Active
- 2015-04-01 WO PCT/EP2015/057177 patent/WO2015161995A1/de not_active Ceased
- 2015-04-01 CN CN201580017951.2A patent/CN106457367B/zh active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878551A (en) * | 1988-11-18 | 1989-11-07 | Steel Equipment Specialists, Inc. | Ladle transfer car with weighing system |
| US20130238298A1 (en) * | 2012-03-12 | 2013-09-12 | Lsis Co., Ltd. | Apparatus and method for estimating railway vehicle masses |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106457367A (zh) | 2017-02-22 |
| JP2017510808A (ja) | 2017-04-13 |
| CN106457367B (zh) | 2019-05-31 |
| KR20160142374A (ko) | 2016-12-12 |
| EP2930478A1 (de) | 2015-10-14 |
| KR102398475B1 (ko) | 2022-05-13 |
| JP6526709B2 (ja) | 2019-06-05 |
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