EP3274641A1 - Vorrichtung zum kontrollierten verfüllen einer abstichöffnung - Google Patents
Vorrichtung zum kontrollierten verfüllen einer abstichöffnungInfo
- Publication number
- EP3274641A1 EP3274641A1 EP16711562.5A EP16711562A EP3274641A1 EP 3274641 A1 EP3274641 A1 EP 3274641A1 EP 16711562 A EP16711562 A EP 16711562A EP 3274641 A1 EP3274641 A1 EP 3274641A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- opening
- filling
- telescopic tube
- controlled filling
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
- F27B3/19—Arrangements of devices for discharging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
-
- 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
- F27D19/00—Arrangements of controlling 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
- 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
Definitions
- the invention relates to a device for the controlled filling of a tapping opening provided in a metallurgical furnace with a refractory mass comprising a filling pipe with a lower opening and an upper opening, a container for the filling compound and a Closing device, wherein the upper opening is connected to the container with the interposition of the closure device so that the connection through the closure device under the control of a control device is obvious and closable, so that by opening the closure device filling compound falls through the filling pipe.
- Metallurgical furnaces such.
- electric arc furnaces are known in the art for a long time.
- Such an electric arc furnace has a furnace vessel with a disgust. Electrodes held by electrode holding arms and retractable and extendable into the oven vessel by opening in the lid are energized to form an arc. Using the arc, feedstock such as scrap is melted to form a bath of molten steel.
- the tapping opening is mounted in the bottom of the furnace vessel in such a way that, after the furnace vessel has fallen back into the starting position, the remaining sump is no longer above the tapping opening, so that it can be closed with a refractory filling compound before the next melting process.
- a trickling capable of mass size and density similar to fine gravel. This is poured loose into the tap hole.
- the tapping opening widens with the number of tapping operations, so that the amount of filler mass has to be continuously increased. At the latest, if the wall of the taphole is too thin, the wall of the taphole must be replaced. The correct filling of the tap opening must be visually checked and confirmed by the operator.
- the object of the invention is to provide a device for filling a tap opening, which solves the above problems.
- a device for the controlled filling of a tapping opening which is provided in a metallurgical furnace, with a refractory mass comprising a filling pipe having a lower opening and an upper opening, a container for the filling compound and a closure device, wherein the upper opening is connected to the container with the interposition of the closure device so that the connection through the closure device under the control of a control device is openable and closable, so that by opening the closure device filling compound falls through the filling pipe, and wherein the filling pipe is formed as a telescopic tube is.
- the backfilling can be started manually.
- the telescopic tube descends to above the tap hole in a working Position. After filling the telescopic tube is in a
- the telescopic tube is not protected in the parking position of the hot gases through the tap hole and the associated chimney effect. This increases the service life of the filling pipe. Due to the intermediate circuit can flow through the upper opening, if necessary, free-flowing refractory filling compound under the action of gravity through the telescopic tube. The filling of the tap hole takes less time by the invention to complete. In addition, the invention provides a compact design for filling.
- the telescopic tube is not limited to a round cross-section.
- a further advantage is that, if there is a risk of overfilling the tapping opening, the telescopic tube can be retracted quickly so that the filling compound does not fall out of the tapping opening and thus can not accumulate in the tapping opening and overfill it.
- the telescopic tube can be retracted quickly so that the filling compound does not fall out of the tapping opening and thus can not accumulate in the tapping opening and overfill it.
- the telescopic tube preferably comprises at least a first partial section and at least one second telescopic partial section.
- the telescopic tube preferably comprises at least a first partial section and at least one second telescopic partial section.
- several, preferably coaxially in each case lying subsections may be possible.
- Each of the inner subsections can be pulled out of the next largest, which immediately envelops it.
- the subsections are preferably designed as partial tubes.
- the first section comprises the upper opening and the second section comprises the lower opening, wherein the upper opening is connected to the container with the interposition of the closure device.
- the second section covers the first sectionab section at least partially.
- the second section can completely encase the first section.
- the telescopic tube comprises a detection system He, in particular an optical camera. But others, in particular visual detection systems, are also unimaginable.
- the telescopic tube comprises at least a first section with the upper opening and at least a second section with the lower opening, wherein the detection system is arranged in the region of the lower opening of the second section.
- the detection system can be mounted directly next to the lower opening to a cultivation.
- the detection system can also be arranged on a pivoting device. With the detection system overfilling the tapping with filling compound can be easily avoided by a very simple visual control is performed. On the basis of the result, if there is too little filling, additional filling compound can be introduced.
- a goal-oriented filling can be accomplished.
- the visual control e.g. whether sufficient filling mass has been used and the tapping opening is sufficiently dense to be accomplished.
- a large amount of filling compound can be introduced into the tapping opening.
- After subsequent detection of the already done backfilling it may then be necessary for a small nere amount of backfill to be backfilled. Of course, this can be repeated any number of times.
- the telescopic tube is at least partially disposed on a manipulator.
- the telescopic tube may include at least a first portion with the upper opening and at least a second portion with the lower opening, wherein the manipulator is at least partially disposed on the second portion.
- the manipulator is designed as a transport carriage. This allows the telescopic tube to be easily pulled out and retracted.
- the transport carriage on a chain drive and an electric motor, such as a geared motor or a hydraulic motor. The movement takes place via chain drive and electric motor, eg a geared motor or a hydraulic motor. The transport carriage is therefore moved by means of a chain drive from the parking position to the working position.
- the telescopic tube moves up on a transport slide to make the connection, from the opening in the lid of the arc furnace above the tap opening to the container above the lid.
- the chain drive may be a worm drive.
- the telescopic tube is tilted relative to the vertical.
- the telescopic tube can be tilted by a tilting device relative to the vertical.
- the telescopic tube can not travel vertically upwards but at an angle relative to the vertical, obliquely upward, in order to protect both the telescopic tube and the detection system.
- the telescopic tube and the detection system is protected from heat radiation and exiting exhaust gases.
- an exhaust pipe is provided on the telescopic tube to prevent the influx of exhaust gas into the container.
- the telescopic tube comprises at least a first section with the upper opening and at least one second section with the lower opening tion, wherein the exhaust pipe is provided in the region of the lower opening to prevent the inflow of exhaust gas into the container.
- the filling material in the container is protected from hot exhaust gases.
- the telescopic tube in the direction of the tapping opening on a heat shield. This is in particular provided between the tapping opening or the metallurgical furnace bottom and the optical camera in order to protect the optical camera against hot gases or heat as well as exhaust fumes when filling the tapping opening.
- a manual start of the backfilling is initially provided, it being possible for the telescopic tube to be moved into a working position via the tapping opening and the tapping opening being filled with filling compound, and the filling mass being optically controllable in the region of the tapping opening with a detection system is and wherein the telescopic tube is then retractable into a parking position.
- FIG. 1 shows a first side view of a filling tube according to the invention
- Fig. 1 shows a configured as a telescopic tube filling pipe. for the controlled filling of a tapping opening (not shown) provided in a metallurgical furnace (not shown) with a refractory mass from a container (not shown) for the filling mass.
- the telescopic tube comprises a first section 1 with an upper opening 10 and a second section 2 with a lower opening 11.
- the second section 2 is extendable.
- the upper opening 10 is connected to the container with the interposition of a closure device (not shown) so that the connection through the closure device is obvious and closable under the control of a control device (not shown) so that filling material can be released through the closure device Telescope tube falls.
- the closure device may comprise a hydraulic, pneumatic, electrical or piezoelectric slider for opening and closing the connection between telescopic tube and container. This slider is controlled by the controller.
- the container is open at the top so that it is easily refillable.
- FIG. 2 shows a second side view of the filling pipe according to the invention.
- an optical camera 7 is arranged in the region of the lower opening 11 (FIG. 1) of the second subsection 2.
- a heat shield 4 is arranged between the optical camera 7 and the tap opening.
- the sections 1.2 are formed as refractory clad pipes.
- the second section 2 is held by a manipulator which is designed as a transport slide 5.
- a ma- nipulator enables a physical interaction with the environment.
- the movement takes place via a drive chain 9 with chain drive and an electric motor 6, e.g. a gear motor or a hydraulic motor.
- the sand filling can be started manually.
- the transport carriage 5 is moved by means of the chain drive from a parking position to a working position on the tap hole.
- the second section 2 is pulled out.
- the connection is made from the opening in the lid of the arc furnace over the tap hole to the container above the lid.
- the lower opening 11 (FIG. 1) is therefore in a position in which the filling compound, which falls through the telescopic tube, falls into the tapping opening.
- the closure device (not shown) to the container for the filling compound can be opened (optionally this is already open and in the container filling material is poured for filling) and the sand filling for the taphole can begin.
- the optical camera 7 can now be used to check the correct filling of the tapping opening. After correct filling, the telescopic tube is raised to a parking position.
- the camera 7 may be provided on a pivotable pivoting device (not shown).
- the telescopic tube is tilted relative to a vertical 12 (FIG. 1) by an angle ⁇ (FIG. 1).
- the telescopic tube In order to protect the telescopic tube and the camera 7, the telescopic tube therefore does not travel vertically upwards, but obliquely at an angle ⁇ (FIG. 1); Thus, the telescopic tube and the camera 7 are protected from heat radiation and exiting exhaust gases.
- an exhaust pipe 3 is provided to prevent an influx of exhaust gas into the container.
- the invention enables a simple and controlled filling of the tap opening. Overfilling he can be avoided according to the invention. In addition, the invention increases the life of the filling pipe according to the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Charging Or Discharging (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202015002221.9U DE202015002221U1 (de) | 2015-03-25 | 2015-03-25 | Vorrichtung zum kontrollierten Verfüllen einer Abstichöffnung |
| PCT/EP2016/055559 WO2016150765A1 (de) | 2015-03-25 | 2016-03-15 | Vorrichtung zum kontrollierten verfüllen einer abstichöffnung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3274641A1 true EP3274641A1 (de) | 2018-01-31 |
| EP3274641B1 EP3274641B1 (de) | 2019-02-20 |
Family
ID=53045893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16711562.5A Active EP3274641B1 (de) | 2015-03-25 | 2016-03-15 | Vorrichtung zum kontrollierten verfüllen einer abstichöffnung |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP3274641B1 (de) |
| CN (1) | CN208042794U (de) |
| DE (1) | DE202015002221U1 (de) |
| RU (1) | RU183114U1 (de) |
| TR (1) | TR201904145T4 (de) |
| WO (1) | WO2016150765A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU569600A1 (ru) * | 1975-12-04 | 1977-08-25 | Предприятие П/Я А-3244 | Устройство дл закрыти летки конвертера |
| SU812831A1 (ru) * | 1979-03-19 | 1981-03-15 | Липецкое Отделение Государственногоордена Трудового Красного Знаменисоюзного Института По Проектированиюагрегатов Сталеплавильного Ипрокатного Производства Длячерной Металлургии | Устройство дл предотвращени пОпАдАНи шлАКА из KOHBEPTOPAB СТАлЕРАзлиВОчНый КОВш |
| GB0002895D0 (en) * | 2000-02-08 | 2000-03-29 | Goricon Metallurg Services | Improvements relating to plug members for steel furnaces |
| WO2011009579A1 (de) * | 2009-07-20 | 2011-01-27 | Fuchs Technology Holding Ag | Abdicht- und verfüllvorrichtung für einen metallurgischen ofen, metallurgischer ofen und verfahren zum abstechen eines metallurgischen ofens |
| RU2415950C1 (ru) * | 2009-11-02 | 2011-04-10 | Общество с ограниченной ответственностью ПКФ "Металлургкомплектснаб" (ООО ПКФ "Металлургкомплектснаб") | Стопор для отсечки первичного конвертерного шлака, аппликатор для посадки стопора в летку конвертера, система отсечки первичного конвертерного шлака, способ отсечки первичного конвертерного шлака |
| CN202155494U (zh) * | 2011-07-18 | 2012-03-07 | 永兴特种不锈钢股份有限公司 | 灌引流砂装置 |
| CN202576460U (zh) * | 2012-02-13 | 2012-12-05 | 北京科技大学 | 一种高炉出铁和堵塞铁口用的高炉辅助装置 |
-
2015
- 2015-03-25 DE DE202015002221.9U patent/DE202015002221U1/de not_active Expired - Lifetime
-
2016
- 2016-03-15 CN CN201690000616.1U patent/CN208042794U/zh not_active Expired - Lifetime
- 2016-03-15 EP EP16711562.5A patent/EP3274641B1/de active Active
- 2016-03-15 WO PCT/EP2016/055559 patent/WO2016150765A1/de not_active Ceased
- 2016-03-15 RU RU2017133110U patent/RU183114U1/ru active
- 2016-03-15 TR TR2019/04145T patent/TR201904145T4/tr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016150765A1 (de) | 2016-09-29 |
| DE202015002221U1 (de) | 2015-04-22 |
| RU183114U1 (ru) | 2018-09-11 |
| TR201904145T4 (tr) | 2019-05-21 |
| CN208042794U (zh) | 2018-11-02 |
| EP3274641B1 (de) | 2019-02-20 |
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