[go: up one dir, main page]

EP0956368B1 - Dispositif pour le controle direct du processus de chargement a l'interieur d'un four a cuve - Google Patents

Dispositif pour le controle direct du processus de chargement a l'interieur d'un four a cuve Download PDF

Info

Publication number
EP0956368B1
EP0956368B1 EP97954943A EP97954943A EP0956368B1 EP 0956368 B1 EP0956368 B1 EP 0956368B1 EP 97954943 A EP97954943 A EP 97954943A EP 97954943 A EP97954943 A EP 97954943A EP 0956368 B1 EP0956368 B1 EP 0956368B1
Authority
EP
European Patent Office
Prior art keywords
measuring
lance
measuring lance
chamber
shaft furnace
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.)
Expired - Lifetime
Application number
EP97954943A
Other languages
German (de)
English (en)
Other versions
EP0956368A1 (fr
Inventor
Gilbert Bernard
Emile Breden
Emile Lonardi
Guy Thillen
Pol Lemmer
Aldo Bologna
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.)
Paul Wurth SA
Original Assignee
Paul Wurth SA
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
Application filed by Paul Wurth SA filed Critical Paul Wurth SA
Publication of EP0956368A1 publication Critical patent/EP0956368A1/fr
Application granted granted Critical
Publication of EP0956368B1 publication Critical patent/EP0956368B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/24—Test rods or other checking devices

Definitions

  • the present invention relates to a device for direct observation the loading process inside a shaft furnace during this Operating, especially a blast furnace.
  • measuring lances which by a lateral opening in the shaft furnace wall above the loading column, are radially retractable into the blast furnace and at least one profile probe for mechanical or contactless scanning of the Möller surface.
  • a measuring lance is known from US-A-4,326,337 which is known as Profile probe has a plumb bob that is attached to a wire rope, which runs over a rotary drum. The unrolled wire rope length is measured when the plumb bob hits the Möller surface.
  • JP-A-62 192511 proposed a direct observation of the loading process allowed.
  • This probe comprises an elongated element which is above the Möllers is carried out across the furnace.
  • Using a transit time measurement then the point of impact of the batch cargo on the elongated one Element determined.
  • JP-A-56 003606 Another device for direct observation of the loading process is described in JP-A-56 003606. It is a lance with several piezo elements distributed in the axial direction, which between the Charging bell and the Möller protrudes into the blast furnace. When it hits of charge on one of the piezo elements generates this electrical signal based on which the location of the cargo can be determined on the lance.
  • the disadvantage here is that the actual sensors, i.e. the piezo elements the incoming material are directly exposed which increases their lifespan reduced.
  • JP-A-61 177304 describes an apparatus for directly observing the Feeding process in which a measuring lance can be inserted into the blast furnace has several gas lines inside, each on their front opening forms an opening on the top of the measuring probe. If a gas is applied to the gas lines, this flows through the Measuring lance and exits at the respective openings in the measuring lance. Meets Charge goods on one of the openings, at least for a short time partially closed and there is a change in pressure inside the Gas line. This pressure change is caused by one of the gas pipes assigned pressure measuring device is detected and thus the impact of a charge item at the position of the measuring probe corresponding to the respective opening registered.
  • the disadvantage of this device is that the openings in the lateral surface the measuring lance often due to impinging particles clog. The pressure in the blocked gas line rises permanently and the Measurement results are falsified.
  • the present invention is therefore based on the object of a device for direct observation of the loading process inside a To create a shaft furnace, the function of which is not impaired by feed material hitting the measuring probe directly.
  • the device comprises a measuring lance, which is located above the charging column is arranged in the shaft furnace that they during the loading process the load falling out of a loading device exposed, and sensor means which determine the position of the falling Detect bulk goods relative to the measuring probe.
  • the measuring probe can be fixed in the Shaft furnace be arranged.
  • the measuring probe is however, as known measuring lances for the blast furnace, by a side Sealing device in the shaft furnace wall above the loading column radially retractable into the shaft furnace, with the measuring probe in the retracted position Condition during the loading process from a loading device falling load is exposed.
  • the sensor means comprise several in the longitudinal direction of the Measuring lance chambers arranged one behind the other, each chamber one has at least partially elastic wall during the observation process is directly exposed to the load and itself deformed when hitting a part to be loaded. It should be noted here that the partially elastic wall in one piece in the lateral surface of the Measuring probe can be integrated.
  • Each chamber can be acted upon with a fluid, for example, and hers can be a detector for detecting the deformation caused by the elastic Wall-induced change in the fluid pressure in the respective chamber be assigned.
  • hers can be a detector for detecting the deformation caused by the elastic Wall-induced change in the fluid pressure in the respective chamber be assigned.
  • the loading part briefly deforms this wall in the direction of the Chamber, which results in a reduction in the chamber volume.
  • This Reducing the chamber volume leaves the fluid pressure in the Chamber rise briefly and the resulting pressure surge is from the Detector detected and converted into an electrical signal, for example becomes.
  • the electrical signals generated by the various detectors are then evaluated for the distribution of the material parts that hit it to be calculated on the measuring probe. Immediately after the impact takes the partially elastic wall under the influence of its original shape the elastic restoring force again.
  • each of the chambers there is one in each of the chambers arranged radially displaceable piston, the piston in the event of deformation the elastic wall due to an impacting load part is shifted substantially radially.
  • the piston is preferred by means of an elastic means against the partially elastic wall biased.
  • the loading device can thus be during the furnace operation immediately. This can cause these changes in the tables and / or mathematical models on the basis of which the Feeder is controlled, are taken into account. tables and / or mathematical models for loading goods with new parameters can be easily created during furnace operation. This contributes significantly to the optimization of the loading of a blast furnace. Furthermore, determined changes in the loading characteristics Conclusions on wear (e.g. due to erosion of the sliding surfaces) in the Loading device itself.
  • the proposed device can Example can be used to determine when the turning chute in one bellless gout closure must be replaced. Here are the maintenance costs reduced for the loading device and the maintenance-related Downtimes of the furnace can be reduced if necessary.
  • the design of the sensor means as chambers with at least partially elastic wall has the advantage that the size the partially active wall essentially to any desired local Resolving power can be adjusted. This allows the active Adjust the area of the sensor means to the respective circumstances.
  • none in the outer surface of the measuring probe Block the opening formed by the load.
  • the chamber can also have at least one outlet opening for the fluid in this way have the fluid from a fluid supply through the chamber to the Exhaust opening flows and thereby a flow channel is formed the partially elastic wall when hitting a part of the load reduced the cross section of the flow channel.
  • This increases the Flow resistance of the flow channel comes on briefly and it comes to an increase in the static pressure in the fluid supply.
  • the pressure chamber is preferably designed such that it is very small Height. This achieves a very high level of responsiveness Sensor means, and the observed pressure rise is significantly higher and clear longer than the pressure surge with a closed pressure chamber.
  • the outlet opening for the fluid is preferably inside the measuring lance arranged. In this way, the opening can not be through material parts clog.
  • the outflowing fluid is then, for example, via a Return channel promoted to the rear end of the probe and can here be reused. It should be noted that the fluid, if any can also be used as a coolant for the fluid cell.
  • a radial (with respect to the Measuring lance i.e. displaceable in the direction of the impact of the feed material parts) Piston arranged, the flow channel on which the partially elastic wall facing side limited.
  • the piston "floats" in the Operation on the flowing fluid and is at an impact of a feed part through the partially elastic wall in the direction of the flow channel accelerated to narrow it.
  • the piston can be operated by an elastic means, e.g. a coil spring is slightly biased against the partially elastic wall.
  • the elastic means can for example between the bottom of the pressure chamber and the piston may be arranged and so prevent the flow channel is narrowed due to vibrations of the measuring probe.
  • a particularly good response behavior of the fluid cell can be achieved if the outlet opening (s) of the pressure chamber are positioned and dimensioned in this way is that they are complete when moving the piston through it be closed.
  • the outlet opening (s) of the pressure chamber are positioned and dimensioned in this way is that they are complete when moving the piston through it be closed.
  • the detector can detect the change a change in pressure in the fluid supply of the fluid pressure in the respective fluid cell to capture. It is therefore possible to place the detector outside the measuring probe arrange and face the high temperatures inside the shaft furnace to protect.
  • the device according to the invention advantageously has a protective sleeve on, which surrounds the measuring probe over a certain length and which by means of a Drive in the longitudinal direction of the measuring probe between a protective position and a working position is displaceable, the protective sleeve, the sensor means covered in the protective position and released in the working position.
  • the measuring probe can also be used at least one measuring element for scanning the bulk profile in the blast furnace wear and / or additionally designed as a gas probe and / or temperature probe his.
  • FIG 1 and 2 show a section through the loading area of a Blast furnace 2, i.e. the area between the feed column 4 and the Feeding device, of which only the angle-adjustable rotary chute 6 is shown.
  • the feed material 8 passes through a not shown Bunker on the rotating chute 6 and is from this over the loading surface 10 distributed.
  • the rotary chute 6 rotates around the vertical Axis 0 of the blast furnace 2, the angle ⁇ between the rotary chute 6 and the vertical axis 0 can be varied such that an optimal distribution takes place over the entire loading surface 10.
  • the loading characteristics i.e. the falling curves
  • the loading device for the respective load depending on the setting angle ⁇
  • the rotary chute 6 To record this loading characteristic is a measuring lance 12 above the Möllers laterally in the blast furnace 2 arranged that during the loading process from the rotary chute 6 falling out feed material 8 is exposed. This measuring lance 12th is consequently at every revolution of the rotating chute 6 from the falling Paint jet 8 swept over.
  • the measuring lance 12 In their area exposed to the falling feed material 8 the measuring lance 12 has an impact sensor 14 which is used when sweeping over it of the feed material 8 the position of the impact of the impinging Parts of the feed material determined on the measuring lance 12. Based on the determined Impact positions can be made with knowledge of the exact position of the measuring probe 12 inside the blast furnace 2, the drop curve for the respective angle setting the rotary chute 6 can be calculated, e.g. the position of the largest Density (center of gravity) of the material beam 8 is calculated. So you get Knowledge of which area of the loading surface 10 at a certain setting angle ⁇ is loaded.
  • the measuring probe 12 is firmly attached to the rear end Blast furnace wall can be mounted, with only supply lines for the impact sensor 14 and a cooling device provided through the furnace wall are brought out.
  • the Measuring lance 12 can advantageously be inserted radially into blast furnace 2 from the outside, the rear end of the measuring lance 12 protruding from the blast furnace 2.
  • the measuring probe 12 is e.g. at its rear end on a carriage 16 mounted on one outside of the blast furnace 2 on its supporting frame mounted rail 18 runs. It is carried out through the furnace wall thereby by a sealing device 20, e.g. a stuffing box known per se.
  • This embodiment allows the measuring probe 12 to be pulled out of the blast furnace 2 and thus enables easy access to the impact sensor 14, e.g. to replace it if damaged.
  • its longitudinal extent is only insignificantly larger than the extension of the material jet 8
  • a fixed measuring probe 12 must be the active area of the impact sensor 14 extend essentially over the entire radius of the blast furnace 2 around the falling chute 6 at different setting angles ⁇ Feed material 8 to be exposed.
  • a sliding one Measuring lance 12 can ⁇ different for different setting angles Take positions in the blast furnace 2 so that the active area of the Impact sensor 14 is exposed to the feed material 8.
  • At least one second measuring function in is expedient the measuring probe 12 housed.
  • the measuring probe 12 is a radar probe 22 for scanning the loading surface 10, which is integrated in the lance tip 23.
  • Embodiments can also be a temperature sensor and / or a gas probe be integrated into the measuring probe 12.
  • Fig. 3.a. shows a laterally insertable into the blast furnace 2 measuring lance 12 at Perform through the furnace wall and an advantageous embodiment of the Measuring probe 12 for this purpose (b and c).
  • the impact sensor 14 is shown in the Measuring lance 12 in a flattened area 24 on the top of lance 12 assembled. So that there is no loading material 8 on the impact sensor 14 accumulates, the flattened area 24 of the measuring lance 12 is not arranged horizontally, but has an inclination of e.g. 45 ° with respect to Horizontal on (see cross section of measuring probe 12 in c).
  • the impact sensor Despite this tendency, 14 is the one falling out of the rotary chute 6 Feed material 8 exposed, but this can no longer accumulate the sensor.
  • the sealing sleeve 26 is by means of a drive 28, e.g. one attached between carriage 18 and sealing sleeve 26 Hydraulic cylinder, displaceable in the longitudinal direction of the measuring lance 12, the sealing sleeve 26 in a first end position the flattened Area 24 with the impact sensor 14 mounted therein covers such that the Measuring probe 12 has a constant cross section in the longitudinal direction.
  • the Lance tip 23 preferably points up to the flattened area 24 an outer cross-section with the outer cross-section of the sealing sleeve 26 is identical, while the remaining part of the measuring probe 12 is one Cross-section which, apart from the flattening in the area 24 in corresponds approximately to the inner cross section of the sealing sleeve 26.
  • the sealing sleeve 26 At the transition between the lance tip 23 and the central part of the lance Lance consequently on a radial shoulder 30, on which the sealing sleeve 26 in their first end position rests in such a way that the measuring probe 12 has a constant one Has cross section. While performing the measuring probe 12 by the gland 16 adapted to this outer cross section This ensures tightness of the device. It should be noted that the Length of the sealing sleeve 26 is selected such that it also in the end position the measuring lance 12 inside the blast furnace 2, the tightness between the Stuffing box 16 and the measuring probe 12 maintained.
  • the Sealing sleeve 26 After insertion of the measuring probe 12 through the stuffing box 16, the Sealing sleeve 26 by the drive 28 from its first end position in one second end position shifted in the flattened area 24 of the measuring probe 12 is released (see Fig. 4). The impact sensor 14 is consequently off the rotating chute 6 exposed falling material 8 and the fall curves can be determined. It should be mentioned that the Sealing sleeve 26 can also be used as a protective sleeve for the impact sensor 14. If the fall curves are not to be recorded for a certain time, the sealing sleeve 26 can be moved into its first end position, so that the impact sensor 14 in front of the falling feed material 8 is protected.
  • the impact sensor 14 is preferably a spatially resolving one Sensor with several separate active areas 30 (FIG. 5) along the Measuring range of the measuring probe 12
  • FIG. 5 schematically shows a control for a loading device a measuring probe 12 according to the invention.
  • the individual active Areas 30 of the impact sensor 14 are via signal adjustment electronics 32 connected to a computer 34.
  • the impact point activated and thereby generate an electrical signal.
  • This electrical signals are forwarded to the computer 34, in which the The measured values are evaluated.
  • the computer 34 calculates from the signals the activated sensor areas 30 and the position of the measuring probe 12 (position signal by position transmitter) the fall curve of the feed material 8, by, for example, the position of the greatest density (center of gravity) of the Material beam 8 calculated, and compares this with a stored Setpoint for the current setting angle ⁇ .
  • the measuring lance 12 comprises a plurality of gas lines 52 which extend through the measuring lance 12 and each have an opening 54 in the first end thereof Sheath surface 56 of the measuring probe 12 forms and at its second end 58 a gas supply (not shown) is connected. In operation, the Gas lines 52 continuously pressurized with gas, so that at the respective openings 54, a gas stream emerges from the measuring lance 12.
  • the detector includes For example, a pressure gauge that 12 in at the rear end of the measuring probe the respective gas line 50 is arranged around the static at this point Measure pressure in the respective gas supply.
  • each fluid cell has a pressure chamber 60 an at least partially elastic wall 62.
  • the partially elastic Wall 62 faces the outer surface of the measuring lance 12 in this way or integrated in one piece in the outer surface of the measuring lance 12 that they during of the observation process is directly exposed to the load.
  • a gas supply 63 with gas pump 64 the pressure chamber 60 with a Gas applied
  • a part of the load impinging on the partially elastic wall 62 (shown schematically by the wedge 65) briefly deforms the wall 62 towards the pressure chamber 60, which results in a reduction in the chamber volume results.
  • This reduction in chamber volume in turn leaves the gas pressure in chamber 60 increases briefly and the resulting one Pressure surge is detected by detector 66.
  • the partially elastic wall 62 takes its original shape under the Influence of the elastic restoring force again.
  • the pressure chamber is a flow channel 68 educated.
  • it has at least one outlet opening 70 for the gas so that the gas from the gas supply 63 through the flow channel 68 to the outlet opening 70 flows.
  • the partially elastic wall 62 is reduced in this embodiment the cross section of the flow channel 68. This increases the flow resistance of the flow channel 68 briefly and there is an increase the static pressure in the gas supply 63.
  • the outlet openings 70 for the gas are preferably inside the measuring lance 12 arranged. In this way, the opening can not be through material parts clog.
  • the outflowing gas is then, for example, via a Return channel (not shown) to the rear end of the measuring lance 12 promoted and can be reused here.
  • Fluid can optionally also be used as a coolant for the fluid cell 50 can.
  • the Flow channel 68 on the partially elastic wall 62 facing Side limited (see Fig. 9).
  • the piston 72 "floats" in operation on the Gas flow through the flow channel 68 and becomes one at an impact Loading part 66 through the partially elastic wall in the direction of Flow channel 68 accelerates to narrow it.
  • the piston 72 can be adjusted by an elastic means, e.g. a Coil spring 74 slightly biased against the partially elastic wall 62 becomes.
  • an elastic means e.g. a Coil spring 74 slightly biased against the partially elastic wall 62 becomes.
  • a Coil spring 74 slightly biased against the partially elastic wall 62 becomes.
  • a particularly good response behavior of the fluid cell 50 can be achieved with the Achieve the configuration of Fig.11.
  • the outlet openings are 70 positioned in the upper area of the pressure chamber 60 (see also Fig.12) that they complete when moving the piston 72 by this be closed.
  • a material part 65 strikes the corresponding one Fluid cell 50 will allow gas to flow out of pressure chamber 60 this completely prevents the measured pressure rise maximum.
  • FIG. 11 shows a possible method of manufacturing the pressure chamber or the flow channel can be seen. Doing so inside one of the Measuring lance 12 extending in the radial direction to just below the lateral surface Recess 76 an insert 78 mounted, the pressure chamber 60 and the Flow channel 68 limited radially inwards.
  • the radial position of the Insert 78 is preferably adjustable so that the volume of the Pressure chamber or the cross section of the flow channel to the required Value is adjustable.
  • the insert 78 is also preferably designed such that the outside of the Insert 78 gas guide channels 80 are formed, via which the Outlet openings 70 gas flowing into the interior of the measuring lance to the Return channel, not shown, are routed.
  • detector 66 and gas pump 64 generally outside of Measuring lance are arranged, with their respective gas supply line 63 extends through the measuring lance 12 to its rear end.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Blast Furnaces (AREA)
  • Coke Industry (AREA)

Claims (13)

  1. Dispositif d'observation directe du processus de chargement à l'intérieur d'un four à cuve (2) en service, en particulier un haut fourneau, avec une sonde de mesure disposée de telle manière au-dessus de la colonne de chargement (4) dans le four à cuve (2), que ladite sonde est exposée au matériau de charge (8) tombant d'un dispositif de chargement (6) pendant le processus de chargement et avec des moyens de détection (14) pour surveiller la position du matériau de charge (8) tombant par rapport à la sonde de mesure (12), caractérisé en ce que
    les moyens de détection (14) comprennent plusieurs chambres disposées l'une derrière l'autre le long de la sonde de mesure (12), chaque chambre comprenant une paroi (62) au moins partiellement élastique qui pendant le processus d'observation est directement exposée au matériau de charge (8) et qui se déforme sous l'impact d'une pièce du matériau de charge.
  2. Dispositif selon la revendication 1, caractérisé en ce que la paroi partiellement élastique est intégrée d'une seule pièce dans la surface extérieure de la sonde de mesure.
  3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que chaque chambre peut être remplie d'un liquide et qu'à chaque chambre un capteur (66) permettant de détecter une modification de la pression du fluide provoquée par la déformation de la paroi élastique à l'intérieur de la chambre correspondante (50) est associé.
  4. Dispositif selon la revendication 3, caractérisé en ce que la chambre (60) comprend au moins une ouverture de refoulement (70) pour le fluide, de sorte que le fluide peut s'écouler de la conduite d'arrivée (63, 64) à travers la chambre (60) pour atteindre l'ouverture de refoulement (70), un canal d'écoulement (75) étant ainsi formé et la déformation de la paroi partiellement élastique (62) sous l'impact d'une pièce de matériau de charge (65) réduisant la section du canal d'écoulement (78).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé par un piston (72) mobile dans l'axe radial, aménagé dans la chambre (70), ledit piston se déplaçant principalement dans l'axe radial à la suite d'une déformation de la paroi flexible sous l'impact d'une pièce de matériau de charge.
  6. Dispositif selon la revendication 5, caractérisé en ce que le piston est précontraint au moyen d'un organe élastique contre la paroi partiellement élastique.
  7. Dispositif selon l'une des revendications 5 ou 6, caractérisé en ce que le piston délimite un canal d'écoulement (78) de telle manière que la section du canal d'écoulement est réduite à chaque fois que le piston se déplace sous l'impact d'une pièce de matériau de charge.
  8. Dispositif selon l'une des revendications précédentes, caractérisé par une douille de protection (26) entourant la tige de mesure (12) sur une longueur donnée et qui se déplace grâce à un système d'entraínement (28) le long de la tige de mesure (12) entre une position de protection et une position de travail, la douille de protection (26) recouvrant le moyen de détection (14) en position de protection et libérant le moyen de détection en position de travail.
  9. Dispositif selon revendication 8, caractérisé en ce que la douille de protection (26) sert de douille d'étanchéité, la section externe de la douille d'étanchéité étant adaptée au dispositif d'étanchéité (16) et un élément d'étanchéité (27) étant arrangé entre la douille d'étanchéité (26) et la sonde de mesure (12).
  10. Dispositif selon l'un des revendications précédentes, caractérisé en ce que la sonde de mesure (12) est en outre configurée en tant que sonde de gaz.
  11. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la sonde de mesure (12) est en outre configurée en tant que sonde de température.
  12. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la sonde de mesure (12) comprend en outre au moins un élément de mesure (22) pour déterminer le profil de déversement (10) dans le four à cuve (2).
  13. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la sonde de mesure (12) peut être introduite dans le four à cuve à travers un dispositif d'étanchéité latéral (16) dans la paroi du four à cuve (2).
EP97954943A 1997-01-29 1997-12-22 Dispositif pour le controle direct du processus de chargement a l'interieur d'un four a cuve Expired - Lifetime EP0956368B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU90013A LU90013B1 (de) 1997-01-29 1997-01-29 Vorrichtung zum direkten Beobachten des Beschickungsvorgangs im Innern eines Schachtofens
LU90013 1997-01-29
PCT/EP1997/007249 WO1998032882A1 (fr) 1997-01-29 1997-12-22 Dispositif pour le controle direct du processus de chargement a l'interieur d'un four a cuve

Publications (2)

Publication Number Publication Date
EP0956368A1 EP0956368A1 (fr) 1999-11-17
EP0956368B1 true EP0956368B1 (fr) 2002-07-17

Family

ID=19731655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97954943A Expired - Lifetime EP0956368B1 (fr) 1997-01-29 1997-12-22 Dispositif pour le controle direct du processus de chargement a l'interieur d'un four a cuve

Country Status (9)

Country Link
US (1) US6261513B1 (fr)
EP (1) EP0956368B1 (fr)
AU (1) AU6091298A (fr)
BR (1) BR9714214A (fr)
CA (1) CA2278703C (fr)
DE (1) DE59707750D1 (fr)
ES (1) ES2180078T3 (fr)
LU (1) LU90013B1 (fr)
WO (1) WO1998032882A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1012905A3 (fr) * 1999-09-17 2001-05-08 Centre Rech Metallurgique Procede de determination de la trajectoire des matieres lors du chargement d'un four a cuve.
DE10334417A1 (de) * 2003-06-20 2005-01-05 Z & J Technologies Gmbh Ofenkopf bzw. Gichtverschluß
AT508369B1 (de) 2009-06-17 2011-01-15 Vatron Gmbh Verfahren und vorrichtung zur berechnung einer oberfläche eines füllguts eines behälters
KR101778329B1 (ko) * 2010-04-26 2017-09-26 해치 리미티드 야금로 내의 차지 뱅크 레벨 측정
JP5561228B2 (ja) * 2011-03-31 2014-07-30 新日鐵住金株式会社 高炉装入物の落下軌跡測定方法および測定棒
JP7571778B2 (ja) * 2022-02-22 2024-10-23 Ｊｆｅスチール株式会社 装入装置及び高炉用原料製造方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5537850Y2 (fr) * 1975-11-11 1980-09-04
JPS537505A (en) * 1976-07-09 1978-01-24 Nippon Steel Corp Operating process of blast furnace
JPS6040484B2 (ja) * 1979-06-21 1985-09-11 株式会社神戸製鋼所 高炉原料の装入落下状況把握方法
JPS5633412A (en) * 1979-08-23 1981-04-03 Kawasaki Steel Corp Dropping locus measuring method of charging material flow of blast furnace
US4326337A (en) 1980-05-01 1982-04-27 Kawasaki Seitetsu Kabushiki Kaisha Measuring instrument for the profile of piled charge of a blast furnace
JPS58197207A (ja) * 1982-05-14 1983-11-16 Kawasaki Steel Corp 高炉装入装置の垂直シユ−ト部における装入物の偏流検出法
DE3233986A1 (de) 1982-09-14 1984-03-15 Dango & Dienenthal Maschinenbau GmbH, 5900 Siegen Vorrichtung zum bestimmen des moellerprofils in einem schachtofen
JPS59162211A (ja) * 1983-03-04 1984-09-13 Sumitomo Metal Ind Ltd 高炉操業方法
JPS59177310A (ja) * 1983-03-28 1984-10-08 Sumitomo Metal Ind Ltd 高炉炉内状況測定装置
JPS60145306A (ja) * 1984-01-07 1985-07-31 Nippon Steel Corp 堅型高炉における装入状況検出方法
JPS61177304A (ja) * 1985-01-31 1986-08-09 Nippon Steel Corp 高炉装入物の落下軌跡測定装置
JPS62192511A (ja) * 1986-02-17 1987-08-24 Kobe Steel Ltd 回転シユ−ト式高炉の装入原料落下位置推定方法
BR8704362A (pt) * 1986-08-26 1988-04-19 Kawasaki Steel Co Processo e sistema para realizacao de operacao de fusao redutora
DE3715762A1 (de) 1987-05-12 1988-11-24 Dango & Dienenthal Maschbau Vorrichtung zum bestimmen des schuettprofils in einem schachtofen
JPH09235605A (ja) * 1996-02-27 1997-09-09 Kobe Steel Ltd 高炉における装入物の落下位置推定装置

Also Published As

Publication number Publication date
WO1998032882A1 (fr) 1998-07-30
US6261513B1 (en) 2001-07-17
LU90013B1 (de) 1998-07-30
ES2180078T3 (es) 2003-02-01
CA2278703A1 (fr) 1998-07-30
AU6091298A (en) 1998-08-18
BR9714214A (pt) 2000-02-29
DE59707750D1 (de) 2002-08-22
EP0956368A1 (fr) 1999-11-17
CA2278703C (fr) 2007-08-21

Similar Documents

Publication Publication Date Title
EP2215191B1 (fr) Dispositif de nivellement et procédé de remplissage d'une chambre de four d'une batterie de fours à coke
EP1528356A2 (fr) Dispositif pour la surveillance de grands paliers à roulement
DE3912791A1 (de) Schrotstrahlsystem und verfahren zum schrotstrahlen
EP0956368B1 (fr) Dispositif pour le controle direct du processus de chargement a l'interieur d'un four a cuve
EP2581313A1 (fr) Dispositif de contrôle de tablettes mobiles
EP3892947A1 (fr) Dispositif d'entretien du trou de coulée d'un four à arc électrique
EP2203710B1 (fr) Machine d'écoulement, système de mesure d'interstice et procédé de détermination de l'interstice d'un rotor
EP1259762A1 (fr) Soufflerie de lance a eau avec dispositif de surveillance pour la qualite du jet d'eau et procede permettant de l'actionner
DE102014102345A1 (de) Vorrichtung zur messung der dichte und/oder des durchsatzes von schüttgut, sowie verfahren dafür
DE60224561T2 (de) Verfahren zur berechnung der füllrate einer rotierenden kugelrohrmühle und vorrichtung dafür
EP3369864B1 (fr) Procédé de détection d'obstacles lors du fonctionnement d'un vibrateur de battage
EP3144070A1 (fr) Procede de fonctionnement d'un broyeur tubulaire, agencement destine a determiner des donnees caracteristiques d'un broyeur tubulaire et broyeur tubulaire
EP4168651B1 (fr) Système et procédé pour entraîner un tunnel
DE29919505U1 (de) Tunnelbohrmaschine
DE2655297A1 (de) Betriebssystem zum erfassen des verhaltens von rohstoffen in einem hochofen oder dergleichen
WO2009077018A1 (fr) Procédé pour déterminer la taille et/ou l'état d'une ouverture de buse
EP3385495B1 (fr) Machine de travail permettant d'effectuer des travaux de forage
DE102019134955B4 (de) Einspritzvorrichtung einer Spritzgießmaschine
DE102014117553B3 (de) Zerstörungsfreie Prüfung einer Komponente eines Wälzlagers
EP1108094A1 (fr) Mouton diesel
DE102019101837B4 (de) Linearantrieb
DE102008009805B4 (de) Verfahren und Vorrichtung zur zerstörungsfreien Prüfung eines rotationssymmetrischen Bauteils
DE3233986A1 (de) Vorrichtung zum bestimmen des moellerprofils in einem schachtofen
DE102008052983A1 (de) Wirbelstromsensor und Verfahren zum Ermitteln von aufgrund thermischer Einflüsse veränderter Werkstoffeigenschaften in einem zu untersuchenden Bauteil mit Hilfe desselben
EP4575385A1 (fr) Procédé et dispositif de détection de connexion de canal

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 19990708

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE ES FR GB IT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010110

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59707750

Country of ref document: DE

Date of ref document: 20020822

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020808

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2180078

Country of ref document: ES

Kind code of ref document: T3

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

26N No opposition filed

Effective date: 20030422

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

Ref country code: IT

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

Effective date: 20051222

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20091201

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

Ref country code: BE

Payment date: 20131015

Year of fee payment: 17

Ref country code: DE

Payment date: 20131015

Year of fee payment: 17

Ref country code: FR

Payment date: 20131015

Year of fee payment: 17

Ref country code: GB

Payment date: 20131015

Year of fee payment: 17

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

Ref country code: IT

Payment date: 20131218

Year of fee payment: 17

Ref country code: ES

Payment date: 20131018

Year of fee payment: 17

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

Ref country code: BE

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

Effective date: 20141231

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59707750

Country of ref document: DE

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

Effective date: 20141222

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150831

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

Ref country code: GB

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

Effective date: 20141222

Ref country code: DE

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

Effective date: 20150701

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: 20141231

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

Ref country code: IT

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

Effective date: 20141222

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20160127

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: 20141223