EP3245465B1 - Reaktorsystem mit untergetauchtem lanzetteninjektor und messvorrichtung zur bestimmung eines betriebszustands in einem schmelzbad - Google Patents

Reaktorsystem mit untergetauchtem lanzetteninjektor und messvorrichtung zur bestimmung eines betriebszustands in einem schmelzbad Download PDF

Info

Publication number
EP3245465B1
EP3245465B1 EP15831159.7A EP15831159A EP3245465B1 EP 3245465 B1 EP3245465 B1 EP 3245465B1 EP 15831159 A EP15831159 A EP 15831159A EP 3245465 B1 EP3245465 B1 EP 3245465B1
Authority
EP
European Patent Office
Prior art keywords
lance
molten bath
submerged
reactor system
sensing device
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.)
Active
Application number
EP15831159.7A
Other languages
English (en)
French (fr)
Other versions
EP3245465A1 (de
Inventor
Robert Walter Matusewicz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Outotec Finland Oy
Original Assignee
Outotec Finland Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from AU2014905265A external-priority patent/AU2014905265A0/en
Application filed by Outotec Finland Oy filed Critical Outotec Finland Oy
Priority to PL15831159T priority Critical patent/PL3245465T3/pl
Publication of EP3245465A1 publication Critical patent/EP3245465A1/de
Application granted granted Critical
Publication of EP3245465B1 publication Critical patent/EP3245465B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing through the bath
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4673—Measuring and sampling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0028—Devices for monitoring the level of the melt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/4613—Refractory coated lances; Immersion lances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/168—Introducing a fluid jet or current into the charge through a lance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D2099/0036—Heating elements or systems using burners immersed in the charge

Definitions

  • Molten bath smelting or other pyrometallurgical operations which require interaction between the bath and a source of oxygen-containing gas utlilize several different arrangements for the supply of the gas.
  • these operations involve direct injection into the molten matte/metal. This maybe by bottom blowing tuyeres as in a Bessemer type furnace or side blowing tuyeres as in a Peirce-Smith type converter.
  • the injection of gas may be by means of a lance to provide either top blowing or submerged injection. Examples of top blowing lance injection are the KALDO and BOP steel making plants in which pure oxygen is blown from above the bath to produce steel from molten iron.
  • top blowing lance injection is the Mitsubishi copper process, in which lances cause jets of oxygen-containing gas such as an oxygen-enriched air, to impinge on and penetrate the top surface of the bath, respectively to produce and to convert copper matte.
  • oxygen-containing gas such as an oxygen-enriched air
  • submerged lance injection the lower end of the lance is submerged so that injection occurs within rather than from above the slag layer of the bath, to provide top submerged lancing (TSL) injection.
  • TSL top submerged lancing
  • the top blowing in the Mitsubishi copper process uses a number of relatively small steel lances which have an inner pipe of about 50 mm diameter and an outer pipe of about 100 mm diameter.
  • the inner pipe terminates at about the level of the furnace roof, well above the reaction zone.
  • the outer pipe which is rotatable to prevent it sticking to a water-cooled collar at the furnace roof, extends down into the gas space of the furnace to position its lower end about 500-800 mm above the upper surface of the molten bath. Particulate feed entrained in air is blown through the inner pipe, while oxygen enriched air is blown through the annulus between the pipes.
  • the outer pipe burns back by about 400 mm per day.
  • the outer pipe therefore is slowly lowered and, when required, new sections are attached to the top of the outer, consumable pipe.
  • TSL lances employed for TSL injection are much larger than those for top blowing, such as in the Mitsubishi process described above.
  • a TSL lance usually has at least an inner and an outer pipe, as assumed in the following, but may have at least one other pipe concentric with the inner and outer pipes.
  • Typical large scale TSL lances have an outer pipe diameter of 200 to 500 mm, or larger.
  • the lance is much longer and extends down through the roof of a TSL reactor, which may be about 10 to 15 m tall, so that the lower end of the outer pipe is immersed to a depth of about 300 mm or more in a molten slag phase of the bath, but is protected by a coating of solidified slag formed and maintained on the outer surface of the outer pipe by the cooling action of the injected gas flow within.
  • the inner pipe may terminate at about the same level as the outer pipe, or at a higher level of up to about 1000 mm above the lower end of the outer pipe. Thus, it can be the case that the lower end of only the outer pipe is submerged.
  • the inner pipe of a TSL lance may be used to supply feed materials, such as concentrate, fluxes and reductant to be injected into a slag layer of the bath, or it may be used for fuel.
  • An oxygen containing gas such as air or oxygen enriched air, is supplied through the annulus between the pipes.
  • This bath movement, together with injection of gases or other materials via the lance results in movement of the lance due to induced forces.
  • the range of motion to which a top submerged lance is subjected has the potential to provide important information regarding process operations occurring in the molten bath.
  • the lance is controlled by an operator who decides at what level the lance tip should be positioned and controls this by way of raising or lowering the lance relative to the bath by means of a lifting apparatus attached to the lance.
  • a lifting apparatus attached to the lance.
  • Such an arrangement may include a support or guide for the lance, called a lance trolley, the lance trolley being connected by a cable to a hoist whereby a motor control system allows positioning of the lance tip relative to the molten bath within the vessel.
  • a lance height indicator which may be controlled from a slide wire transmitter driven from the lance drum, is employed to provide an indication of the position of the lower end of the lance within the reactor.
  • Operators are instructed to make manual observations regarding lance movement and in time, learn to intuitively recognise which range of motion of the lance is indicative of optimal or sub-optimal conditions in the molten bath. For example, an operator can position the lance in the molten bath by monitoring the movement of the lance by eye. The extent of movement of the lance can be used by an operator with some experience, to approximate the depth to which the tip of the lance is submerged in the molten bath.
  • Publication WO 2011/106023 presents a system for furnace sloping prediction and lance optimization.
  • Publication WO 2014/167532 presents an apparatus for temperature measurements of a molten bath in a top submerged injection lance installation.
  • a top-submerged lancing injector reactor system including: a molten bath; a lance being moveable between a submerged and an unsubmerged position, the lance having a lower end and an upper end, the lower end configured to be lowered into the molten bath in the submerged position; and a sensing device mounted on the lance and being configured to sense one or more movements of or forces applied to the lance in the submerged position, wherein the sensed movements or forces are indicative of an operating condition in the molten bath.
  • suitable sensing devices include orientation sensors generally, and more specifically one or more of an accelerometer, a gyroscope and/or a magnetometer.
  • An accelerometer for instance, can be used to sense the orientation of the lance by detecting the magnitude and direction of movements of the lance, acceleration of the lance in various directions and/or the g-forces to which the lance is subject.
  • orientation sensors may be used alone or in combination to provide the requisite functionality to the sensing device.
  • an assessment of the operating conditions in the molten bath can be based on lance movement patterns. For example, lance movement is impacted by variable conditions including lance position within the reactor including lance proximity to the molten bath; slag levels, variations in slag viscosity, molten bath temperature and the like. Where a lance movement pattern indicates an undesirable operating condition, such that the lance is submerged too deep in the molten bath, or not submerged at all, or that the slag is too viscous, this determination may be used to make adjustments to the operating conditions within the reactor system with the ultimate aim of improving the efficiency of the operation.
  • the sensing device is mounted distal to the lower end of the lance. This configuration protects the sensing device from the conditions in the molten bath by positioning the sensing device as far away from the molten bath as practical, i.e. by mounting the sensing device towards the end of the lance that might be mounted on a lifting apparatus such as a lance trolley and hoist, rather than the lower end of the lance which will be submerged in the molten bath during operation.
  • the sensing device may be wirelessly coupled or hard wired to a receiver to which a plurality of sensed signals are transmitted.
  • the receiver may include processing means configured to analyse the sensed signals to determine at least the magnitude and direction of lance movement. Alternatively, part or all of the processing functionality may be included in a remotely located base station.
  • the processing means may generate output to visually indicate to an operator of the top-submerged lancing injector reactor system, the operating conditions in the molten bath as a function of the sensed signals.
  • the output is in the form of one or more graphical plots that provide a visual indicator of any displacement of the lance in at least two dimensions.
  • displacement of the lance is indicated in three dimensions, i.e. in the X, Y and Z planes.
  • the graphical plot may take the form of a movement map or could take the form of a bar chart or similar.
  • the visual indicator takes the form of a numerical or colour display which an operator recognises as indicating desirable, undesirable or neutral conditions in the bath, for example.
  • the lance is mounted on a lifting apparatus operable to position the lance between the submerged position and the unsubmerged position.
  • the lance is preferably mounted on the lifting apparatus at a point that is intermediate to the lower end of the lance and an upper end of the lance.
  • the sensing device is preferably mounted proximal to the upper end of the lance to protect the sensing device from exposure to the conditions in the molten bath.
  • Suitable sensing devices include orientation sensors generally, and more specifically one or more of an accelerometer, a gyroscope and/or a magnetometer.
  • the sensory device is an inertial measurement unit (IMU).
  • IMU inertial measurement unit
  • the top-submerged lancing injector reactor system may further include a receiver configured to receive a plurality of sensed signals transmitted by the sensing device.
  • the receiver may include processing means configured to analyse the sensed signals or alternatively, this functionality may be included in a remote device such as a base station.
  • the processing means may generate output to visually indicate the operating conditions of the molten bath as a function of the sensed signals.
  • the output generated by the processing means may comprise one or more graphical plots to provide a visual indicator of displacement of the lance in at least two dimensions. Preferably, displacement of the lance is plotted with respect to three dimensions.
  • a method for determining an operating condition in a molten bath of a top-submerged lancing injector reactor system including the following steps: providing a sensing device mounted on a lance; lowering at least a lower end of a lance into the molten bath towards a submerged position; generating one or more sensed signals in response to movements of and/or forces applied to the lance; and transmitting the sensed signals to a receiver; processing the sensed signals to determine at least the magnitude and direction of lance movement or a force applied thereto; wherein movement of or the force applied to the lance is indicative of an operating condition in the molten bath.
  • the receiver includes processing means which derives data regarding the operating condition of the molten bath as a function of the sensed signals.
  • the receiver is communicatively coupled to a base station having processing means which derives data regarding the operating conditions of the molten bath as a function of the sensed signals.
  • the step of sensing one or more movements of the lance preferably includes determining a displacement of the lance in the X, Y and Z axes.
  • the step of sensing one or more movements of or forces applied to the lance may include one or more of measuring an acceleration of the lance; measuring a rotational movement of the lance; and/or measuring vibration and/or strain.
  • FIG. 1 there is shown an exemplary top-submerged lancing injector reactor system 100.
  • the reactor 102 has a cylindrical shell 104 closed at its top end by an inclined roof 106 from which an off-take flue 108 projects upwardly to an off-gas boiler/heat exchanger 110.
  • a section of the shell 104 has been removed to enable the interior of the reactor 102 to be viewed, although the shell 104 is circumferentially continuous at all levels in its height, apart from tap holes.
  • the roof 106 has an inlet 112 down through which a top submerged injecting lance 114 extends so that a lower end portion of the lance 115 is submerged in the molten bath 116.
  • the reactor 102 also has a feed port 118 opening through roof 106 to enable raw materials for a required pyro-metallurgical operation to be charged into bath 116, and a burner port 120 for enabling insertion of a burner 122 if required for heating the reactor.
  • Lance 114 has connectors 124 that enable connection of lance 114 to separate sources of fuel/reductant and oxygen-containing gas, to enable the separate passage of these materials down through lance 114 and to mix at the lower, outlet end of lance to feed a combusting mixture.
  • the combustion of the fuel and oxygen mixture generates a combustion zone in the molten bath 116 at the lower, outlet end of lance 115, as well as strong turbulence in the molten bath 116 that causes the raw materials charged through port 118 to be dispersed in the molten bath to give rise to the required pyro-metallurgical reactions therein.
  • the lance 114 is a schematic illustration of the lower end of one exemplary form of top submerged injecting lance 114 to be fitted with the sensing device of the present invention.
  • the lance 114 comprises an outer pipe 202, an inner pipe 204 and, between pipes 202 and 204, an intermediate pipe 206.
  • the pipes 202, 204 and 206 are substantially circular in cross-section and substantially concentrically arranged.
  • An annular passage 208 defined between pipes 202 and 206 enables the supply of air, while a passage 210 defined between pipes 204 and 206 enables the supply of oxygen.
  • the bore 212 defined by pipe 204 enables the supply of fuel/reductant.
  • pipes 204 and 206 terminate a short distance, relative to the overall length of lance 114, above the lower end of pipe 202 to provide a mixing chamber 214 in which the fuel/reductant, air and oxygen mix to facilitate efficient combustion of the fuel at the lower end of pipe 202.
  • the lance 114 may have a length of up to about 25 meters and an outside diameter of up to about 0.5 meters for commercial operation.
  • a pilot plant version of lance 114 may be only about 4 meters long and about 0.075 meters external diameter.
  • FIG. 3 an exemplary form of the sensing device for determining the operating conditions in a molten bath is shown in combination with the lance of Figure 2 .
  • the sensing device 302 is shown enlarged relative to the diameter of lance 114.
  • the sensing device 302 is mounted on the lance 114 and senses movement of the lance and/or forces applied to the lance, such as an acceleration of g-force, in three dimensions, substantially in the horizontal plane (X axis 312 and Y axis 314), and substantially in the vertical plane (Z axis 316).
  • the sensing occurs continuously throughout operation of the lancing injector reactor system 100 (see Figure 1 ), although it is envisaged that sensing could be programmed to occur at predetermined intervals to provide a check or point of comparison for future sensed signals.
  • the movements sensed by the sensing device 302 are indicative of the operating condition in the molten bath 116 (see Figure 1 ) as will be detailed in the following paragraphs.
  • the sensing device 302 is mounted distal to the lower end 304 of the lance 114.
  • This configuration distances the sensing device 302 from exposure to the conditions in the molten bath 116 (see Figure 1 ). Any movement occurring at the lance tip 310, i.e. the extremity of the lower end of the lance 304, is substantially translated to the upper end of the lance 306. Accordingly, the sensing device 302 can be mounted distal to the lower end 304 of the lance 114 to be submerged in the molten bath, and still provide a useful indication as to the operating conditions in the molten bath.
  • the lance 114 is mounted on, or fixed to a lifting apparatus (not shown) at a point 308 on the lance which is intermediate to the lower end 304 and the upper end 306 of the lance. Since the positon of the lance 114 is only fixed at this intermediate point 308, any movement induced by forces acting on the lance tip 310 will be translated through the entire length of the lance. Whilst mounting the lance 114 on a lifting apparatus in itself provides a source of physical restraint which could be additionally provided by means of an separate physical constraint elsewhere connected to the lance 114, translation of a movement or force applied to the lance tip 310 will occur in any event due to the significant forces to which a top-submerged lance 114 is subject during operation.
  • the range of movements and/or forces that can be measured by the sensing device 302 include at least: displacement in up to three dimensions, i.e. the X, Y and Z planes; acceleration forces; rotational movement; and vibration or strain.
  • Measuring displacement of the lance in at least two dimensions, e.g. X and Y plane displacement is reliable indicator of displacement due to bath slopping.
  • Measuring displacement in a third dimension, e.g. Z plane movement caused by injection under a normal fluid slag is a further indicator of operating conditions.
  • sensing device which include one or more of a variety of independent sensors such as an orientation sensor, an accelerometer, a gyroscope or a magnetometer.
  • IMU Inertial Measurement Unit
  • the sensing device is coupled to a receiver configured to receive a plurality of sensed signals transmitted from the sensing device. If the receiver includes processing means, the sensed signals are analysed by the receiver to determine at least the magnitude and direction of lance movement. Alternatively, if the receiver does not include processing means, this functionality may be included at a remotely located base station. In any case, the processing means analyses the sensed signals and generates output to visually indicate the operating conditions of the molten bath.
  • the output is in a form which can be readily interpreted by a top-submerged lancing injection reactor operator. For example, the output can be provided in the form of one or more graphical plots which provide a visual indicator of the displacement of the lance in at least two dimensions. Examples of such graphical plots are described below with reference to Figures 4B , 5B , 6B and 7B .
  • the receiver may be wirelessly coupled to the base station via a wireless network such as Bluetooth, WiFi, Zig-Bee or wireless LAN, or wireless WAN such as 3G or 4G networks or other wireless networks which may be available from time to time.
  • a wireless network such as Bluetooth, WiFi, Zig-Bee or wireless LAN, or wireless WAN such as 3G or 4G networks or other wireless networks which may be available from time to time.
  • the receiver may be hard wired to the receiver or remote base station.
  • the data transmitted to the receiver is processed in real-time, although it is contemplated that data could be obtained from the receiver in batches and subsequently processed off-line. Real-time processing of sensed data supports real-time monitoring and adaptation of operating procedures to suit the present operating conditions.
  • FIGS 4A and 4B there is shown a first example of an operating condition that can be sensed using the sensing device of the present invention.
  • the lance is "out of bath", that is, the lance tip 310 is not submerged in the molten bath 116 and accordingly will have no forces exerted there upon by slopping or bath movement.
  • the corresponding output or graphical plot 400 shown in Figure 4B shows no displacement of the lance in the X, Y or Z axes.
  • An "out of bath” condition is clearly undesirable, not only because gases or other materials injected via the lance 114 are not injected directly into the molten bath 116, but also because this can cause additional wear on the lance tip 310 which will not be protected by a coating of solidified slag which forms on the lance tip during normal operating conditions.
  • FIG. 5A there is schematically shown a "top jetting" condition, where the lance 114 position is just short of being submerged in the molten bath 116.
  • the lance tip 310 is positioned just above the molten bath 116 surface.
  • This condition is undesirable for similar reasons to the "out of bath” condition, i.e. gases or other materials are not injected directly into the molten bath 116 and the lance tip 310 is caused to be prematurely worn.
  • a “top jetting” condition is indicated by a graphical plot 500 as shown for example in Figure 5B .
  • This graphical plot 500 shows relatively homogenous movement of the lance in the X, Y and Z planes with similar ranges of movement of similar magnitude in three dimensions. This pattern of movement results from limited impact of slopping or bath movement on the lance.
  • FIG. 6A there is shown a normal or desirable operating condition wherein the lance 114 is submerged in the molten bath 116 at the optimal depth and the slag in the molten bath is fluid.
  • the pattern of movement of the lance 114 will typically show some irregularities with respect to displacement of the lance in the X, Y and Z planes as evidenced by the graphical plot 600 shown in Figure 6B .
  • This irregular pattern of lance displacements of similar magnitudes is caused by regular bath slopping facilitated by a fluid slag with the lance tip submerged at an optimal depth.
  • FIG. 7A and 7B there is shown an example of an abnormal operating condition, wherein the lance 114 is submerged too deep in the molten bath 116.
  • the resulting graphical plot 700 shown in Figure 7B indicates erratic displacement of the lance in the X, Y and Z planes.
  • the magnitude of the displacements is random in nature.
  • Other factors that can result in similar graphical plots include where the slag is too viscous resulting in unpredictable bath slopping which may additionally be indicative of a bath temperature that is too low.
  • Normal acceleration forces can also be measured which will arise from interactions with the molten bath due to phenomenon such as induced wave motion or bath slopping.
  • the device may be configured to generate a visible, audible or tactile alert if undesirable operating conditions are detected.
  • a visible alert may take the form of a graphical plot as described with reference to the Figures.
  • the rings on the graphical plots could be colour coded to more clearly indicate to an operator that when the lance movement in a direction enters a "red zone" for example, that this indicates an undesirable condition within the bath and that restorative action should be taken.
  • the visible alert may be simplified into a numeric or colour coded display, for example a single green, yellow or red light to indicate desirable, neutral or undesirable conditions within the bath. Whichever form the alert takes, it is intended to alert the operator to undesirable conditions in the reactor in real-time allowing corrective action to be taken in a timely manner.
  • FIG. 8 there is shown a flowchart illustrating the method 800 for determining an operating condition in a molten bath of a top-submerged lancing injector reactor system as hereinbefore described.
  • the method includes at step 810 providing a sensing device mounted on a lance. At least a lower end of the lance is positioned or lowered into the molten bath towards a submerged position at step 820.
  • Sensed signals are generated in response to movement of the lance at step 830 and transmitted to a receiver at step 840.
  • the sensed signals are processed to determine at least the magnitude and direction of lance movement.
  • the magnitude and direction of lance movement is indicative of one or more operating conditions in the molten bath at step 860.
  • the method is iterative such that the sensed signals are either generated continuously, or at regular, or even random intervals to provide ongoing monitoring of the operating conditions in the molten bath.
  • the sensing device of the present invention confers various advantages and benefits to the operation of top-submerged lancing injector reactors.
  • the operation of the lance itself acts as a sensor to indicate the conditions in the molten bath by means of the sensing device.
  • By measuring lance motion various reactor operating characteristics are obtained and can be measured, recorded and compared with desirable or optimal plant operating conditions to enable corrective action to be taken in a timely manner responsive to sensed conditions which are sub optimal. Therefore the efficiency of the reactor can be optimised.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture Of Iron (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Incineration Of Waste (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Claims (14)

  1. Reaktorsystem mit von oben eingetauchter Einspritzlanze (100), umfassend:
    ein Schmelzbad (116);
    eine Lanze (114), die zwischen einer eingetauchten und nicht-eingetauchten Position beweglich ist, wobei die Lanze (114) ein unteres Ende (304) und ein oberes Ende (306) aufweist, wobei das untere Ende (304) so ausgelegt ist, dass es in der eingetauchten Position in das Schmelzbad (116) abgesenkt wird; und
    eine Erfassungsvorrichtung (302), die an der Lanze (114) montiert und so ausgelegt ist, dass sie eine oder mehrere Bewegungen der Lanze (114) oder an die Lanze angelegte Kräfte in der eingetauchten Position erfasst, wobei die erfassten Bewegungen oder Kräfte einen Betriebszustand im Schmelzbad (116) anzeigen.
  2. Reaktorsystem mit von oben eingetauchter Einspritzlanze (100) nach Anspruch 1, wobei die Lanze (114) an einer Hubvorrichtung montiert ist, die so betreibbar ist, dass sie die Lanze (114) zwischen der eingetauchten Position und der nicht-eingetauchten Position positioniert, wobei die Lanze (114) an einem zwischen dem unteren Ende (304) der Lanze (114) und einem oberen Ende (306) der Lanze (114) gelegenen Punkt an der Hubvorrichtung montiert ist, wobei die Erfassungsvorrichtung (302) in der Nähe des oberen Endes (306) der Lanze (114) montiert ist.
  3. Reaktorsystem mit von oben eingetauchter Einspritzlanze (100) nach Anspruch 1 oder 2, wobei die Erfassungsvorrichtung (302) ein Orientierungssensor ist.
  4. Reaktorsystem mit von oben eingetauchter Einspritzlanze (100) nach Anspruch 1 oder 2, wobei die Erfassungsvorrichtung (302) eines oder mehrere der Elemente Beschleunigungsmesser, Gyroskop und Magnetometer umfasst.
  5. Reaktorsystem mit von oben eingetauchter Einspritzlanze (100) nach einem der Ansprüche 1 bis 4, das ferner einen Empfänger umfasst, der dazu ausgelegt ist, eine Mehrzahl von erfassten Signalen zu empfangen.
  6. Reaktorsystem mit von oben eingetauchter Einspritzlanze (100) nach Anspruch 5, wobei der Empfänger ein Verarbeitungsmittel umfasst, das dazu ausgelegt ist, die erfassten Signale zu analysieren, um mindestens die Größenordnung und die Richtung der Lanzenbewegung zu bestimmen.
  7. Reaktorsystem mit von oben eingetauchter Einspritzlanze (100) nach Anspruch 5, wobei der Empfänger kommunikationstechnisch mit einer entfernt positionierten Basisstation verbunden ist, die ein Verarbeitungsmittel aufweist, das dazu ausgelegt ist, Signale zu analysieren, um mindestens die Größenordnung und die Richtung der Lanzenbewegung zu bestimmen.
  8. Reaktorsystem mit von oben eingetauchter Einspritzlanze (100) nach Anspruch 6 oder 7, wobei das Verarbeitungsmittel eine Ausgabe erzeugt, die den Betriebszustand des Schmelzbads (116) in Abhängigkeit von den erfassten Signalen visuell anzeigt.
  9. Reaktorsystem mit von oben eingetauchter Einspritzlanze (100) nach Anspruch 8, wobei die Ausgabe in Form von einer oder mehreren grafischen Darstellungen erfolgt, um eine visuelle Anzeige der Verschiebung der Lanze (114) in mindestens zwei Dimensionen bereitzustellen.
  10. Verfahren zum Bestimmen eines Betriebszustands in einem Schmelzbad (116) eines Reaktorsystems mit von oben eingetauchter Einspritzlanze (100), wobei das Verfahren die folgenden Schritte umfasst:
    Bereitstellen einer Erfassungsvorrichtung (302), die an einer Lanze (114) montiert ist;
    Absenken mindestens eines unteren Endes (304) einer Lanze (114) in das Schmelzbad (116) zu einer eingetauchten Position;
    Erzeugen von einem oder mehreren erfassten Signalen in Reaktion auf Bewegungen der Lanze (114) und/oder an sie angelegte Kräfte in der eingetauchten Position; und
    Senden der erfassten Signale zu einem Empfänger;
    Verarbeiten der erfassten Signale, um mindestens die Größenordnung und die Richtung der Lanzenbewegung oder eine an die Lanze angelegte Kraft zu bestimmen;
    wobei die Größenordnung und die Richtung der Lanzenbewegung oder die an die Lanze (114) angelegte Kraft einen Betriebszustand im Schmelzbad (116) anzeigen.
  11. Verfahren zum Bestimmen eines Betriebszustands in einem Schmelzbad (116) nach Anspruch 10, wobei der Schritt des Verarbeitens der erfassten Signale zur Bestimmung von mindestens der Größenordnung und der Richtung der Lanzenbewegung umfasst: Bestimmen einer Verschiebung der Lanze (114) in der X-, Y- und Z-Achse.
  12. Verfahren zum Bestimmen eines Betriebszustands in einem Schmelzbad (116) nach Anspruch 10 oder 11, wobei das Verarbeiten der erfassten Signale zur Bestimmung von mindestens der Größenordnung und der Richtung der Lanzenbewegung umfasst: Bestimmen einer Beschleunigung der Lanze (114).
  13. Verfahren zum Bestimmen eines Betriebszustands in einem Schmelzbad (116) nach Anspruch 10 oder 11, wobei das Verarbeiten der erfassten Signale zur Bestimmung von mindestens der Größenordnung und der Richtung der Lanzenbewegung umfasst: Bestimmen einer Drehbewegung der Lanze (114).
  14. Verfahren zum Bestimmen eines Betriebszustands in einem Schmelzbad (116) nach Anspruch 10 oder 11, wobei das Verarbeiten der erfassten Signale zur Bestimmung von mindestens der Größenordnung und der Richtung der Lanzenbewegung umfasst: Bestimmen der Schwingung und/oder Formänderung.
EP15831159.7A 2014-12-24 2015-12-23 Reaktorsystem mit untergetauchtem lanzetteninjektor und messvorrichtung zur bestimmung eines betriebszustands in einem schmelzbad Active EP3245465B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15831159T PL3245465T3 (pl) 2014-12-24 2015-12-23 System reaktora z wdmuchiwaczem lancowym do przedmuchiwania od góry mający urządzenie wykrywające do określania warunków roboczych w roztopionej kąpieli

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2014905265A AU2014905265A0 (en) 2014-12-24 A sensing device for determining an operational condition in a molten bath of a top-submerged lancing injector reactor system
PCT/IB2015/059904 WO2016103195A1 (en) 2014-12-24 2015-12-23 A sensing device for determining an operational condition in a molten bath of a top-submerged lancing injector reactor system

Publications (2)

Publication Number Publication Date
EP3245465A1 EP3245465A1 (de) 2017-11-22
EP3245465B1 true EP3245465B1 (de) 2019-04-17

Family

ID=55299684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15831159.7A Active EP3245465B1 (de) 2014-12-24 2015-12-23 Reaktorsystem mit untergetauchtem lanzetteninjektor und messvorrichtung zur bestimmung eines betriebszustands in einem schmelzbad

Country Status (11)

Country Link
EP (1) EP3245465B1 (de)
JP (1) JP6499293B2 (de)
KR (1) KR102022170B1 (de)
CN (1) CN107110604B (de)
AU (1) AU2015370482B2 (de)
EA (1) EA032999B1 (de)
ES (1) ES2732225T3 (de)
PE (1) PE20171020A1 (de)
PL (1) PL3245465T3 (de)
TR (1) TR201909377T4 (de)
WO (1) WO2016103195A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6973339B2 (ja) * 2018-09-19 2021-11-24 Ｊｆｅスチール株式会社 精錬用ランス設備
JP2022519386A (ja) * 2018-10-23 2022-03-23 ナカノ，ジンイチロウ 炉ランスの位置を制御する方法
JP7325196B2 (ja) * 2019-03-11 2023-08-14 株式会社東芝 金属溶融及び溶解状態確認システム
CN113249677A (zh) * 2021-06-22 2021-08-13 天龙科技炉业(无锡)有限公司 可控气氛井式渗氮炉

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1137758A (en) * 1978-12-05 1982-12-21 Kanji Emoto Methods for controlling blowing, controlling the slag formation and predicting slopping in the blowing of molten pig in ld converter
JPS5843441B2 (ja) * 1979-03-20 1983-09-27 川崎製鉄株式会社 転炉における造滓制御方法
ZA835649B (en) * 1982-08-25 1984-04-25 British Steel Corp Lancing in electric arc steelmaking
JPS6393811A (ja) * 1986-10-06 1988-04-25 Kawasaki Steel Corp 溶銑の予備処理方法
JPH06235012A (ja) * 1993-02-09 1994-08-23 Kawasaki Steel Corp 気体吹精方法およびその装置
JPH0771885A (ja) * 1993-08-31 1995-03-17 Kawasaki Steel Corp ランスの浸漬深さ検出方法およびその装置
US5557631A (en) * 1994-05-06 1996-09-17 Dynex Engineering Inc. Sonic furnace monitoring apparatus
JPH1068010A (ja) * 1996-08-28 1998-03-10 Kobe Steel Ltd 溶銑予備処理方法
JPH11140528A (ja) * 1997-11-04 1999-05-25 Kobe Steel Ltd 溶融鉄処理炉におけるスロッピングの予知方法
JP3994701B2 (ja) * 2001-08-15 2007-10-24 Ｊｆｅスチール株式会社 浸漬ランスの吹込み異常検出方法
US6923843B1 (en) * 2001-11-13 2005-08-02 Nupro Corporation Method for oxygen injection in metallurgical process requiring variable oxygen feed rate
GB0128878D0 (en) * 2001-12-03 2002-01-23 Boc Group Plc Metallurgical lance and apparatus
KR20120137351A (ko) * 2010-02-26 2012-12-20 테노바 굿펠로우 인코퍼레이티드 노 슬로핑 예측 및 랜스 최적화를 위한 시스템
MX2013014912A (es) * 2011-06-30 2014-02-19 Outotec Oyj Lanzas de inyeccion sumergida por la parte superior.
DE102011086324A1 (de) * 2011-11-15 2013-05-16 Sms Siemag Ag Blaslanze für einen BOF-Konverter
UA113614C2 (xx) * 2013-02-14 2017-02-27 Спосіб експлуатації кисневої продувальної фурми в металургійній ємності і вимірювальна система для визначення використовуваних при цьому сигналів вимірювань
AU2013204818B2 (en) * 2013-04-12 2015-02-19 Metso Metals Oy Molten bath temperature measurement for a top submerged lance injection installation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN107110604A (zh) 2017-08-29
EP3245465A1 (de) 2017-11-22
JP6499293B2 (ja) 2019-04-10
ES2732225T3 (es) 2019-11-21
CN107110604B (zh) 2020-01-21
KR20170094417A (ko) 2017-08-17
AU2015370482A1 (en) 2017-08-03
KR102022170B1 (ko) 2019-09-17
WO2016103195A1 (en) 2016-06-30
EA032999B1 (ru) 2019-08-30
TR201909377T4 (tr) 2019-07-22
PL3245465T3 (pl) 2019-09-30
JP2018508730A (ja) 2018-03-29
EA201791303A1 (ru) 2017-12-29
AU2015370482B2 (en) 2019-04-18
PE20171020A1 (es) 2017-07-17

Similar Documents

Publication Publication Date Title
EP3245465B1 (de) Reaktorsystem mit untergetauchtem lanzetteninjektor und messvorrichtung zur bestimmung eines betriebszustands in einem schmelzbad
KR101742901B1 (ko) 상부 침지식 란스 주입 설치물에서 용융욕 온도 측정을 위한 장치
EP3237823B1 (de) System und verfahren zur sammlung und analyse von daten im zusammenhang mit einem betriebszustand in einem reaktorsystem mit untergetauchtem lanzetteninjektor
KR101616393B1 (ko) 금속 용융 용기 내에서 산소 취입 랜스의 작동 방법, 및 이 작동 중 이용되는 측정 신호를 검출하기 위한 측정 시스템
BR112013033631B1 (pt) lanças de injeção submergida de topo
US8808421B2 (en) System for furnace slopping prediction and lance optimization
CA2844098A1 (en) Lances for top submerged injection
WO2013069334A1 (ja) 自焼成電極上端検出装置及び自焼成電極上端管理方法
EP3687666B1 (de) Verfahren und vorrichtung zur steuerung des betriebs und der position einer lanzen- und düsenanordnung in einem metallschmelzbad in einem gefäss
KR101175407B1 (ko) 열방출 지수를 이용한 고로 상부의 가스류 검지 방법
KR20110072934A (ko) 압력 센서를 이용한 용탕 레벨 측정장치
CA2907867A1 (en) Lance and method for the determination of reaction data of a reaction sequence
JP2021038447A (ja) バーナーコーン内の精鉱分布推定方法および自熔製錬炉の操業方法
JP2008156717A (ja) 転炉出鋼口の補修時期判定方法

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170619

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: C21C 5/34 20060101ALI20180924BHEP

Ipc: C21C 5/46 20060101ALI20180924BHEP

Ipc: F27D 99/00 20100101ALI20180924BHEP

Ipc: F27D 3/16 20060101AFI20180924BHEP

Ipc: F27D 21/00 20060101ALI20180924BHEP

INTG Intention to grant announced

Effective date: 20181026

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAL Information related to payment of fee for publishing/printing deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

GRAR Information related to intention to grant a patent recorded

Free format text: ORIGINAL CODE: EPIDOSNIGR71

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

INTC Intention to grant announced (deleted)
INTG Intention to grant announced

Effective date: 20190227

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015028629

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1122012

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190515

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190417

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190717

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190817

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2732225

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20191121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190718

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1122012

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190817

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015028629

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

26N No opposition filed

Effective date: 20200120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20191223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191231

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191223

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191223

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191231

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20201222

Year of fee payment: 6

Ref country code: ES

Payment date: 20210223

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20151223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602015028629

Country of ref document: DE

Owner name: METSO OUTOTEC FINLAND OY, FI

Free format text: FORMER OWNER: OUTOTEC (FINLAND) OY, ESPOO, FI

Ref country code: DE

Ref legal event code: R081

Ref document number: 602015028629

Country of ref document: DE

Owner name: METSO METALS OY, FI

Free format text: FORMER OWNER: OUTOTEC (FINLAND) OY, ESPOO, FI

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20230224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211224

REG Reference to a national code

Ref country code: BE

Ref legal event code: PD

Owner name: METSO MINERALS OY; FI

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), MERGE; FORMER OWNER NAME: OUTOTEC (FINLAND) OY

Effective date: 20230131

Ref country code: BE

Ref legal event code: HC

Owner name: METSO OUTOTEC FINLAND OY; FI

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF OWNER(S) NAME; FORMER OWNER NAME: METSO MINERALS OY

Effective date: 20230131

REG Reference to a national code

Ref country code: BE

Ref legal event code: PD

Owner name: METSO OUTOTEC METALS OY; FI

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), OTHER; FORMER OWNER NAME: OUTOTEC (FINLAND) OY

Effective date: 20231013

Ref country code: BE

Ref legal event code: HC

Owner name: METSO METALS OY; FI

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF OWNER(S) NAME; FORMER OWNER NAME: METSO OUTOTEC METALS OY

Effective date: 20231013

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20231220

Year of fee payment: 9

Ref country code: FI

Payment date: 20231221

Year of fee payment: 9

Ref country code: DE

Payment date: 20231214

Year of fee payment: 9

Ref country code: BG

Payment date: 20231221

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20231220

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20231218

Year of fee payment: 9

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602015028629

Country of ref document: DE

Owner name: METSO METALS OY, FI

Free format text: FORMER OWNER: METSO OUTOTEC FINLAND OY, HELSINKI, FI