EP3244151A1 - Dispositif et procede de remplissage d'un trou de coulee - Google Patents

Dispositif et procede de remplissage d'un trou de coulee Download PDF

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Publication number
EP3244151A1
EP3244151A1 EP16169493.0A EP16169493A EP3244151A1 EP 3244151 A1 EP3244151 A1 EP 3244151A1 EP 16169493 A EP16169493 A EP 16169493A EP 3244151 A1 EP3244151 A1 EP 3244151A1
Authority
EP
European Patent Office
Prior art keywords
support arm
transport container
filling
drive
filling material
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.)
Withdrawn
Application number
EP16169493.0A
Other languages
German (de)
English (en)
Inventor
Alexander Müller
Michael Schmid
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.)
Primetals Technologies Germany GmbH
Original Assignee
Primetals Technologies Germany GmbH
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 Primetals Technologies Germany GmbH filed Critical Primetals Technologies Germany GmbH
Priority to EP16169493.0A priority Critical patent/EP3244151A1/fr
Publication of EP3244151A1 publication Critical patent/EP3244151A1/fr
Withdrawn legal-status Critical Current

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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
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/12—Opening or sealing the tap holes
    • 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
    • C21C5/4653—Tapholes; Opening or plugging thereof
    • 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
    • F27D21/02—Observation or illuminating devices

Definitions

  • the invention relates to a device and a method for filling a taphole of a metallurgical furnace with filling material.
  • Metallurgical furnaces are well known in the art. Usually, metallurgical furnaces, in particular furnaces, are equipped with a tap hole. Via a taphole of a metallurgical furnace, a material processed in the furnace, such as e.g. liquid steel, taken out of the oven ("tapped").
  • the tapping opening is filled with filling material beforehand.
  • backfilling material is introduced into the tapping opening in order to close it.
  • Preference is given to using a free-flowing, refractory mass, in particular sand, as backfilling material.
  • the kiln is typically tilted over a cradle and the tapping opening is pierced by means of a pneumatic drill bit and / or an oxygen lance.
  • the tapping opening is closed again with filling material.
  • An object of the invention is to enable a low-cost filling a tapping opening.
  • the device according to the invention for filling a tapping opening of a metallurgical furnace with filling material has a displaceably mounted support arm, a transport container for the filling material, which is fastened to the support arm, and a drive unit for driving the support arm.
  • a transport container which is fastened to a displaceably mounted support arm, is filled with the filling material and the transport container is brought to the tapping opening of the metallurgical furnace by the support arm a drive unit is moved.
  • the device for filling the tapping opening is also referred to as a filling device for the sake of simplicity.
  • the components which are mentioned in connection with the method are expediently components of the filling device.
  • the process is conveniently carried out by means of the filling device.
  • the invention is based on the consideration that the filling of a taphole is often performed manually. Manually filling a taphole is time consuming, labor intensive, and inconvenient to the operator performing, especially as it is exposed to heat radiation from the furnace when filling the taphole.
  • the transport container can accommodate the backfilling, with which the taphole is to be filled.
  • By moving the support arm by means of the drive unit it is possible to quickly and easily move the transport container from a position at which the transport container can be filled with the filling material (charging position) to a position from which the filling material can be introduced into the tapping opening , (Unloading position) and to bring back.
  • the filling material can in particular be introduced directly from the transport container into the tapping opening.
  • the support arm is linearly displaceable, in particular displaceable along its longitudinal direction, stored.
  • the support arm is expediently used as a carrier for the transport container. When moving the support arm of the transport container is conveniently moved or offset by the same distance as the support arm.
  • the filling device may for example be mounted on a furnace platform. Furthermore, it is preferred if the support arm is aligned horizontally. In this way it can be achieved that the support arm and the transport container can be moved along a horizontal direction.
  • the transport container is arranged or mounted such that its relative position with respect to the support arm is adjustable, in particular in the longitudinal direction of the support arm and / or transversely to the longitudinal direction of the support arm.
  • the unloading position of the transport container can be adapted to a changed position of the tapping opening (between two filling processes) as required.
  • the transport container is prepared to accommodate at least such a large amount of backfill that is sufficient to completely fill the previously completely empty tap opening with the backfill.
  • the transport container expediently has a cavity for receiving the filling material whose volume is at least as large as a volume of a cavity of the tapping opening.
  • the drive unit comprises a motor.
  • the motor in turn expediently comprises a drive shaft.
  • the drive unit preferably comprises a traction mechanism drive, in particular a positive traction mechanism drive.
  • the traction mechanism is advantageously connected to the drive shaft of the engine. In this way, the traction mechanism can be driven by the motor.
  • the drive unit comprises an output shaft.
  • the output shaft is expediently driven by means of the motor, in particular via the traction mechanism drive.
  • the support arm is expediently driven.
  • the aforementioned traction drive is a chain drive.
  • a chain drive enables a transmission of large forces and is therefore particularly suitable for driving the support arm. Furthermore, can be achieved by the use of a chain drive high accelerations of the support arm.
  • the traction mechanism drive comprises a drive chain, in particular a roller chain. It is also expedient if the traction mechanism drive has a drive and a driven wheel. For example, a further wheel, in particular for driving a traction means mounted on the support arm, may be fastened to the abovementioned output shaft.
  • the traction drive e.g. to act a toothed belt drive. That is, the traction mechanism can have a Antriebsriehmen.
  • a different type of transmission may in principle also be provided in the drive unit.
  • the aforementioned motor is an electric motor. Because electric motors are generally low cost and precise controllable / controllable. Consequently, the use of an electric motor allows the position of the transport container to be adjusted in a cost-effective and precise manner.
  • the support arm is expediently a support beam.
  • the support arm is designed as a profile carrier.
  • the support arm is designed as an I-profile support, also called double T-beam. In principle, it is also possible that the support arm has a different profile.
  • the filling device comprises at least one roller unit.
  • the support arm can be displaceably mounted, in particular linearly displaceable. In this way, a smooth and structurally simple storage of the support arm can be realized.
  • the roller unit comprises at least two, preferably four, upper rollers. It is also expedient if the roller unit comprises at least one lower roller.
  • the upper rollers may for example have a different diameter, in particular a smaller diameter, than the lower roller.
  • the support arm is designed as an I-profile support. This allows a simple and stable positioning of the reel unit on the support arm.
  • the support arm expediently has an upper flange, a lower flange and a web connecting the two flanges.
  • the support arm is mounted with its lower flange on the reel unit.
  • the roller unit has at least one roller on both sides of the support arm, in particular on both sides of the web. As a result, tilting of the support arm can be prevented.
  • the filling device may have a rail, which is attached to the support arm, in particular on its underside.
  • the rail can serve as a guide element when moving the support arm.
  • the lower roller may have a recess for receiving the rail.
  • the recess is a recess extending around the circumference of the lower roller.
  • the upper rollers of the reel unit rest on top of the lower flange. That is, the upper surface of the lower flange preferably forms a bearing surface for the upper rollers.
  • the lower roller is conveniently in contact with the aforementioned rail and / or the lower surface of the lower flange.
  • the drive unit is a traction means, such. a chain, in particular a roller chain comprises.
  • the traction means is expediently attached to the support arm, in particular on its upper side.
  • a power transmission from the engine to the support arm can be achieved.
  • the traction means is advantageously at least indirectly, in particular via the output shaft or a wheel attached to the output shaft and / or via the traction mechanism, connected to the motor.
  • the traction means extends over at least 70%, in particular at least 90%, of the length of the support arm. This allows a long travel distance of the support arm.
  • the filling device has two anchoring units.
  • the anchoring units can serve to connect the traction means with the support arm.
  • the anchoring units are attached to the support arm, in particular on its upper side. It is particularly preferred that the anchoring units are each positioned at one end or at an end region of the support arm.
  • the traction means is clamped between the anchoring units.
  • the filling device has at least one stop element.
  • the stop element may e.g. used to stop a movement of the support arm.
  • the stop element is arranged under the support arm.
  • the stop element may in particular be attached to the underside of the support arm or to the aforementioned rail.
  • the stop element has a mechanically actuated switch.
  • the switch is preferably designed to generate a switching signal, in particular an electrical switching signal, when it is actuated.
  • the stopper member may have a rounded surface which is e.g. can serve as a contact surface for a roll of the reel unit.
  • the switch can preferably be actuated by a roller of the roller unit, in particular by abutment of the roller with the switch. Depending on a switching signal which the switch generates, a state of the motor can be controlled. When a switching signal is generated by the switch, the motor may be switched e.g. be stopped and then operated if necessary in the reverse direction.
  • the position of the stop means in the longitudinal direction of the support arm is variable. In this way, an adjustability of the travel distance of the support arm can be achieved.
  • the filling device has at least two such stop elements. These can in particular be positioned in each case at one end or an end region of the support arm.
  • the filling device has at least two roller units of the type described above, in particular in order to achieve a more stable mounting of the support arm can.
  • the transport container expediently has an outlet opening, via which the transport container can be unloaded.
  • the transport container also has a closure device for closing and releasing the outlet opening. In this way, the unloading of the transport container can be automated, so that can be dispensed with a manual unloading of the transport container.
  • the closure means of the transport container may e.g. a flap, in particular a pivotally mounted flap, have.
  • the closure device may have a drive means for driving the flap.
  • the drive means may be e.g. to act a working cylinder, in particular a hydraulic, pneumatic or Elektrohubzylinder.
  • the closure device may comprise, for example, a slider and / or a stopper, wherein the slider and / or the stopper may be drivable by the aforementioned drive means or another drive means.
  • the transport container has a receiving opening, via which the transport container can be filled or charged with the filling material.
  • the receiving opening and the outlet opening are preferably arranged opposite one another.
  • the backfill device is equipped with a monitoring system for monitoring a backfill level of the taphole.
  • a monitoring system for monitoring a backfill level of the taphole.
  • an automated monitoring of the fill level can be realized.
  • An elaborate and error-prone visual inspection of the fill level by a worker can be dispensed with.
  • filling level of the tapping opening in the present case, a fill level of the filling material can be understood within the tapping opening.
  • the monitoring system may e.g. have a camera for optical detection of Ver hypollgut spallstands.
  • the monitoring system can have another detection device, for example a radar and / or ultrasound-based detection device, for detecting the fill level.
  • the camera and / or any other detection device of the monitoring system are / is arranged on the transport container.
  • the camera and / or any other detection device of the monitoring system can be arranged on the metallurgical furnace, in particular on its tap hole.
  • the monitoring system has an evaluation unit, for example in the form of a computer, which is set up for the purpose of evaluating data generated by the camera and / or any other detection device and / or for determining the filling level on the basis of these data is.
  • an evaluation unit for example in the form of a computer, which is set up for the purpose of evaluating data generated by the camera and / or any other detection device and / or for determining the filling level on the basis of these data is.
  • the filling device has a reservoir for the filling material.
  • the support arm is movable so that the transport container can be positioned under the reservoir. It can thereby be achieved that the transport container can be filled from the reservoir with the filling material.
  • the storage container has a discharge device, in particular on its underside.
  • the discharge device can be used, for example, to control a mass flow of the filling material leaving the storage container through its outlet opening, in particular to control it automatically.
  • the filling device may have a control device, for example in the form of a computer.
  • the control device may e.g. be arranged for controlling the motor of the drive unit, the drive means of the closure device and / or the discharge device of the reservoir.
  • the control device can be set up for evaluating data generated by the camera and / or any other detection device of the monitoring system, and / or for processing a switching signal of a switch.
  • the support arm is moved by a power transmission from the motor of the drive unit to the attached to the support arm traction means, which may be in particular a chain.
  • the traction means is displaced by the same distance when moving the support arm as the support arm.
  • the transport container is moved from a position below the storage container (charging position) to a position above the tapping opening (unloading position).
  • the transport container is expediently filled from the storage container with the filling material. Further, it is expedient if the transport container is moved to the unloading position after filling.
  • the transport container Before the transport container is moved from the loading position to the unloading position, it can first be moved or moved to another position (waiting position), where the transport container, for example, for a predetermined Can linger for a period of time.
  • the waiting position may be in front of or behind the charging position, viewed from the charging position towards the unloading position.
  • the transport container In the unloading position, the transport container is advantageously at least partially unloaded.
  • the filling material located in the transport container is expediently introduced into the tapping opening.
  • a filling level of the tapping opening is monitored, in particular optically monitored, during unloading of the transport container. After unloading the transport container is preferably moved back to the charging position.
  • the drive unit has a rack drive.
  • the rack drive may be provided in particular instead of the aforementioned traction mechanism.
  • the rack drive can also be provided in addition to the traction mechanism drive.
  • the rack and pinion drive comprises a rack, which is attached to the support arm, in particular on its upper side. Further, it is expedient if the drive unit has a drive gear, which engages with its teeth in the rack.
  • the rack may extend over part of the length of the support arm or over the entire length of the support arm. Preferably, the rack extends over at least 70%, in particular at least 90%, of the length of the support arm. This allows a long travel distance of the support arm.
  • Said drive gear may, for example, be indirectly or directly connected to the drive shaft of the motor.
  • FIG. 1 shows a filling device 2 for filling a tap hole of a (not figuratively not shown) metallurgical furnace, in particular a melting furnace, with backfill.
  • the filling device 2 comprises a horizontally oriented support arm 4, which is designed as an I-profile support.
  • the filling device 2 comprises a transport container 6 for backfilling, which is attached to one end of the support arm 4.
  • the filling device 2 comprises a drive unit 8 for driving the support arm 4.
  • the filling device 2 has two roller units 10, by means of which the support arm 4 is linearly displaceable, more precisely along its longitudinal direction 12 slidably mounted. Both roller units 10 are in turn mounted stationarily on a support frame 14 of the filling device 2.
  • the drive unit 8 comprises an electric motor 16 with a drive shaft 18 (see FIG. 2 ).
  • the drive unit 8 comprises a traction mechanism drive 20 connected to the drive shaft 18.
  • the traction mechanism drive 20 is a chain drive which has a circulating roller chain 22.
  • the drive unit 8 comprises an output shaft 24 (see FIG. 2 ), which is driven via the traction mechanism drive 20.
  • the filling device 2 has a housing 26, in which the aforementioned elements of the drive unit 8 are arranged.
  • the housing 26 is shown transparent, so that the elements arranged therein of the drive unit 8 are visible.
  • the drive unit 8 comprises a traction means 28 which is attached to the upper side of the support arm 4 and extends over approximately 95% of the length of the support arm 4.
  • This traction means 28 is formed as a roller chain.
  • the filling device 2 also has two anchoring elements 30, which are each positioned at an end region of the support arm 4 and between which the traction means 28 is clamped. Further, the traction means 28 is connected to the aforementioned output shaft 24 of the drive unit 8. In addition, the traction means 28 is arranged in sections in said housing 26.
  • the filling device 2 further comprises a positioned above the support arm 4 reservoir 32, in which free-flowing, refractory filling material is located.
  • the backfill is sand.
  • the reservoir 32 On its underside, the reservoir 32 has a discharge device 34.
  • a rail 36 which extends substantially over the entire length of the support arm 4, is fastened to the underside of the support arm 4.
  • two stop elements 38 are attached to the rail 36, which are each positioned at an end region of the support arm 4.
  • FIG. 2 shows the filling device 2 from FIG. 1 in a top view.
  • the filling device 2 has a working platform 40 which has access to the drive unit 8 and to the reservoir 32 allows, for example, for maintenance purposes.
  • the transport container 6 has a cavity 42 for receiving the filling material, wherein the cavity 42 has a narrowing cross-section.
  • FIG. 3 shows an isometric view of the filling device 2 of Figures 1 and 2.
  • a drive wheel 46 and a driven gear 48 of the traction mechanism drive 20 can be seen, which are connected to each other via the roller chain 22 of the traction mechanism drive 20.
  • the drive wheel 46 is fixed to the drive shaft 18 of the electric motor 16, whereas the output gear 48 is fixed to the output shaft 24. Further, the two wheels 46, 48 are formed as gears.
  • FIG. 4 shows a section of the filling device 2, in which, among other details of the drive unit 8 and the two roller units 10 are shown.
  • the support arm 4 has an upper flange 50, a lower flange 52 and a web 54 connecting the two flanges 50, 52, wherein the web 54 is aligned perpendicular to the two flanges 50, 52.
  • roller units 10 each have four upper rollers 56 and one lower roller 58, with each of the roller units 10 having two of its upper rollers 56 on one side of the web 54 and the other two upper rollers 56 on the other side of the Bridge 54 arranged are. Consequently, in the illustration are off FIG. 4 only two of their upper rollers 56 can be seen from both roller units 10.
  • the lower rollers 58 of both roller units 10 each have a larger diameter than the upper rollers 56.
  • the lower rollers 58 of both roller units 10 each have on their circumference a recess for receiving the rail 36th
  • the upper side of the lower flange 52 forms a support surface for the upper rollers 56. Furthermore, the support arm 4 rests with the underside of its lower flange 52 on the lower rollers 58 of the two roller units 10.
  • the drive unit 8 comprises a further wheel 60, which is fastened to the output shaft 24 and to which the traction means 28 fastened to the upper side of the support arm 4 is connected.
  • this further wheel 60 which is designed as a gear, said traction means 28 is driven.
  • the drive unit 8 includes two additional wheels 62 for guiding the traction means 28, both of which are also formed as gears and are connected to the traction means 28.
  • FIG. 5 shows a section of the filling device 2, in which, inter alia, details of the transport container 6 are shown.
  • the transport container 6 At its top, the transport container 6 has a receiving opening 64, via which the cavity 42 (see FIG. 2 ) can be filled with the filling material.
  • the transport container 6 On its underside, the transport container 6 has an outlet opening 66, via which the transport container 6 can be unloaded, that is, the filling material located in the transport container 6 can be let out of the transport container 6.
  • the inner cross section of the transport container 6 narrows from the receiving opening 64 to the outlet opening 66.
  • the transport container 6 has a closure device 68 for closing and releasing the outlet opening 66.
  • the closure device 68 comprises a pivotable flap 70 with two mutually parallel planar walls, of which in FIG. 5 only one is visible, as well as a curved wall which connects the two flat walls together.
  • the closure device 68 comprises a drive means 72 connected to the pivotable flap 70 for driving the flap 70.
  • the drive means 72 is an electric lift cylinder.
  • the filling device 2 comprises a monitoring system 74 for monitoring a filling level of the tapping opening.
  • the monitoring system 74 has a camera 76 for optical detection of the fill level, which is attached to the transport container 6.
  • the aforementioned stop elements 38 have a rounded contact surface. In the area of this surface, the stop elements 38 have a mechanically actuable switch 78, which is adapted to generate an electrical switching signal when actuated. In FIG. 5 one of the two stop elements 38 is visible.
  • the filling device 2 has a (not figuratively shown) control device which is communicatively connected to the drive means 72 of the closure device 68, the camera 76, the electric motor 16, the switches 78 of the stop elements 38 and the discharge device 34 of the reservoir 32.
  • the control device is configured to control the drive means 72, the motor 16 and the discharge device 34 as well as to evaluate the signals generated by the camera 76 and the switches 78.
  • the transport container 6 In order to fill the transport container 6 with filling material, the transport container 6 is brought into a charging position. That is, the transport container 6 is positioned below the reservoir 32. By means of the discharge device 34 of the storage container 32, a portion of the filling material located in the storage container 32 is introduced via the receiving opening 64 of the transport container 6 into the transport container 6. The outlet opening 66 of the transport container 6 is closed in this case.
  • the reservoir 32 For monitoring the filling level of the transport container 6, the reservoir 32 has a (figuratively not shown) optical monitoring system that generates signals dependent on Verhellguthellstand 6 of the transport container and sends them for evaluation to the aforementioned control device.
  • the filling level of the transport container 6 could be monitored by a worker by visual inspection.
  • the discharge device 34 of the storage container 32 could be e.g. Manually controlled by the worker.
  • the transport container 6 After filling the transport container 6 with the filling material, the transport container 6 is brought into an unloading position. That is, the transport container 6 is positioned over the Abtichö réelle. This is realized in that the support arm 4 is moved by means of the drive unit 8 along its longitudinal direction 12.
  • the electric motor 16 via the traction drive 20, via the output shaft 24 and via the attached to the output shaft 24 further wheel 60 drives the attached to the top of the support arm 4 traction means 28 at. As a result, ultimately, the support arm 4 is driven.
  • the transport container 6 has reached the unloading position when that stop element 38, which is further removed from the transport container 6, abuts against the lower roller 58 of that roller unit 10, which is further removed from the transport container 6.
  • the switch When triggered, the switch generates 78 of this stopper member 38, a switching signal and using this switching signal, the electric motor 16 is stopped.
  • the outlet opening 66 of the transport container 6 is released by the closure device 68 being opened.
  • the transport container 6 is at least partially unloaded. This means that at least part of the filling material located in the transport container 6 is introduced from the transport container 6 into the tapping opening.
  • the fill level of the tapping opening is monitored, in particular to ensure that the filling level of the tapping opening is sufficiently large, since in the case of too low a level, if appropriate, leakage of the material to be processed in the metallurgical furnace can not be prevented.
  • the outlet opening 66 of the transport container 6 is closed again by means of the closure device 68. Subsequently, the transport container 6 is again brought into the charging position by the support arm 4 is moved in the opposite direction. Here, the electric motor 16 is operated in the reverse direction of rotation.
  • the transport container 6 has reached the charging position when that stop element 38, which is arranged closer to the transport container 6, abuts against the lower roller 58 of that roller unit 10, which is arranged closer to the transport container 6.
  • the switch 78 of this stop member 38 now generates a switching signal, and using this switching signal, the electric motor 16 is stopped again.
  • the transport container 6 can be filled again with the filling material.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
EP16169493.0A 2016-05-13 2016-05-13 Dispositif et procede de remplissage d'un trou de coulee Withdrawn EP3244151A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16169493.0A EP3244151A1 (fr) 2016-05-13 2016-05-13 Dispositif et procede de remplissage d'un trou de coulee

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16169493.0A EP3244151A1 (fr) 2016-05-13 2016-05-13 Dispositif et procede de remplissage d'un trou de coulee

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EP3244151A1 true EP3244151A1 (fr) 2017-11-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110285680A (zh) * 2019-07-04 2019-09-27 晋中市榆次海洋液压有限公司 一种工业硅炉使用的堵炉眼装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009033934B3 (de) * 2009-07-20 2011-02-03 Fuchs Technology Holding Ag Abdicht- und Verfüllvorrichtung für einen metallurgischen Ofen, metallurgischer Ofen und Verfahren zum Abstechen eines metallurgischen Ofens
US20160123668A1 (en) * 2014-10-31 2016-05-05 Aldo Longo Sand dispensing system and method of dispensing sand into a metal making furnace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009033934B3 (de) * 2009-07-20 2011-02-03 Fuchs Technology Holding Ag Abdicht- und Verfüllvorrichtung für einen metallurgischen Ofen, metallurgischer Ofen und Verfahren zum Abstechen eines metallurgischen Ofens
US20160123668A1 (en) * 2014-10-31 2016-05-05 Aldo Longo Sand dispensing system and method of dispensing sand into a metal making furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110285680A (zh) * 2019-07-04 2019-09-27 晋中市榆次海洋液压有限公司 一种工业硅炉使用的堵炉眼装置
CN110285680B (zh) * 2019-07-04 2020-09-01 晋中市榆次海洋液压有限公司 一种工业硅炉使用的堵炉眼装置

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