CN101889185A - Furnace and cleaning device for a furnace - Google Patents
Furnace and cleaning device for a furnace Download PDFInfo
- Publication number
- CN101889185A CN101889185A CN2008801192177A CN200880119217A CN101889185A CN 101889185 A CN101889185 A CN 101889185A CN 2008801192177 A CN2008801192177 A CN 2008801192177A CN 200880119217 A CN200880119217 A CN 200880119217A CN 101889185 A CN101889185 A CN 101889185A
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- Prior art keywords
- cleaning device
- passing away
- optics
- checkout gear
- smelting furnace
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- 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; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/19—Arrangements of devices for discharging
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- 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
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- 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
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
- F27D25/001—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag comprising breaking tools, e.g. hammers, drills, scrapers
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Optical Head (AREA)
Abstract
The invention relates to a cleaning device and a furnace (1), particularly an electric arc furnace, having a tapping channel (2) for discharging liquid metal from the furnace (1), a locking device (4) for opening and closing an opening (3) of the tapping channel (2), and a cleaning device (5, 5', 5'') for removing metal deposited on the opening (3) of the tapping channel (2). The capacity of the furnace (1) may be improved by reducing down times and the safety of the operating personnel may be improved in that the cleaning device has an optical detection device (9) for recording an image of the tapping channel (2) and/or of the opening (3) of the tapping channel (2).
Description
Technical field
The present invention relates to a kind of smelting furnace, especially electric arc furnaces, this smelting furnace has and is used for discharging the passing away of liquid metal, the shutoff device of mouth that is used to open and close passing away and the cleaning device that is used to remove the metal on the mouth that is deposited on passing away from smelting furnace.In addition, the present invention relates to a kind of cleaning device that is used for by each described smelting furnace of claim 1 to 10, this cleaning device has the guiding valve that has guiding valve tongue movably and is arranged in scraping on the guiding valve tongue.
Background technology
The present invention is in the metallurgical technical field, in the especially metallurgical smelting furnace technology.In metallurgical smelting furnace, produce and process liquid metal in other words.Especially in electric arc furnaces, for example the scrap iron and/or the pig iron are processed into the molten metal with definite composition together with other additional material, for example lime or charcoal.After forming molten metal, it is discharged from electric arc furnaces.This ejects by so-called bottom usually and carries out.At this, liquid metal is exported from smelting furnace by means of the passing away of furnace bottom.
When from smelting furnace especially electric arc furnaces, discharging liquid metal, on tap, formed the ring that constitutes by the metal that solidifies in other words on the mouth at passing away after liquid metal is discharged between expulsive stage in other words.Before closing the mouth of passing away again, to remove this becket.The becket on removing the passing away mouth, the obstruction that check possible damage of passing away and/or residue targetedly, for example causes by slag.
Becket on not only described mouthful and in passing away possible damage and/or residue all be to influence the passing away mouth parameter of the state of passing away in other words.The supervision of the state of passing away mouth and/or passing away and when needing this passing away be summarised under the notion of the passing away mouth maintenance of passing away in other words in the scope that is created in the application of the desirable state of passing away mouth in other words.
Because the passing away maintenance of passing away mouth is in other words manually carried out by operating personnel at present usually, bring corresponding danger so can provide operating personnel here.Operating personnel are the slags that for example postpones to come out from smelting furnace or are arranged in steel ladle of the liquid metal with discharge below the tap or the like in the source of the danger the during maintenance measure of passing away mouth in other words carrying out passing away.In order to get rid of this danger, after finishing discharge, before implementing maintenance, observed 1 minute at present or the longer stand-by period of length for operating personnel.Yet the long stand-by period can cause the raising of production cost, because reduced the production capacity of smelting furnace thus.
From open file DE 100 34 370 A1 the smelting furnace of manually safeguarding is disclosed for example.
The cleaning device of described type is for example disclosed from open source literature AT 48 186 B.Equally from U.S. Pat 4,875, another kind of cleaning device is disclosed in 663, wherein cleaning device has been configured to metallic brush here.
Summary of the invention
Task of the present invention is to improve safety of operators and improve the especially production capacity of electric arc furnaces of smelting furnace simultaneously.
This task characteristic by claim 1 in the smelting furnace of the described type of beginning is resolved.By providing, no longer need manually to remove becket by smelting furnace of the present invention.Thus, especially can avoid safeguarding passing away long stand-by period during the passing away mouth in other words.Improved safety of persons on the one hand thus, because when carrying out maintenance measure, no longer be exposed under the danger.On the other hand, allow to improve the Cost Status that production capacity is improved in other words by smelting furnace of the present invention, because can one to two part of molten steel of multi-processing every day by the saving of time when safeguarding.This cleaning device can be removed becket aspect mechanical, hot or chemical.Checkout gear by the optics that exists has improved safety of operators because when checking passing away, needn't be exposed to again passing away near.The checkout gear of described optics is preferably worked in visible and/or infrared SPECTRAL REGION.For example can use video camera and/or heat picture camera.By means of the checkout gear detection passing away of optics and/or the image of passing away mouth, described image manually or is automatically analyzed on the smelting furnace limit or in Surveillance center at the scene.Can determine according to described information whether need embodiment, for example get rid of the obstruction partly or completely in the passing away as maintenance measures to passing away.
In favourable design of the present invention, cleaning device comprises the scraping of wedge shape, and this scraping has scrapes the limit.Under special circumstances, this cleaning device can be configured to scraping itself.Scraping for example can be arranged on the shutoff device that has existed of smelting furnace and enlarge its envelop of function thus.This scraping can install additional fairly simplely.
Especially advantageously, described cleaning device comprises shutoff device.Cleaning device and shutoff device can be embodied as common construction unit thus, and compactness and the device that save the space of the form of the cleaning of combination and shutoff device is provided thus.
In another favourable design of the present invention, described cleaning device has adjusting device, and this adjusting device is used for respect to passing away mouth location and directed described cleaning device.Can when safeguarding, after each the discharge, individually consider the state of passing away mouth thus.This adjusting device not only can be used in the independent cleaning device, and can be used in the cleaning and shutoff device of combination.This adjusting device for example can be configured to eccentric wheel suspension arrangement or set screw.
In another favourable embodiment of the present invention, described cleaning device is constructed with the movably guiding valve of guiding valve tongue, and wherein scraping is arranged on the end of guiding valve tongue.This design of cleaning device allows to clean the passing away mouth with technical simple means, although have hostile environment condition, especially high temperature and pollution highly.
Preferably implement in the flexible program at of the present invention another, have the cooling device of the checkout gear be used to cool off cleaning device and/or optics.By the checkout gear of cooling optics or the higher service life that cleaning device has been realized corresponding device thereof.Especially when the checkout gear of optics is configured to cleaning device a part of, cooling device and the cleaning device that is used for the checkout gear of optics can be made up.For example can make water as cooling medium.Yet also can use other suitable cooling medium, for example gases arbitrarily.Especially advantageously, described cleaning device has housing, and this housing can carry out continuous washing away in other words with cooling medium especially water and be full of, and can not influence the function of cleaning device.Can effectively cool off cleaning device thus.
In another favourable design of the present invention, exist be used to produce at least partially in around wash away the device that the air of the checkout gear of optics flows.On the one hand, this air stream can be used in the checkout gear of cooling optics, and on the other hand, this air stream has been realized such function, and the camera lens that is about to the checkout gear of optics keeps not contaminated in the visual field in other words.When the checkout gear of optics " was seen " in passing away, the latter was especially significant.This layout can cause causing the checkout gear form in other words that seriously pollutes optics by the particle that comes out fast from smelting furnace.As a result of, can only supervise passing away or no longer can supervise passing away restrictedly.By be used to produce at least partially in around wash away the device of air stream of the checkout gear of optics, even realized in serious pollution environment, also can realizing reliably supervision to passing away.This realizes by the following method, promptly by air stream stop particle basically, especially contaminant particle is deposited in the light path of checkout gear of optics.Air stream for example can and guide compressed-air actuated guiding device to provide by compressed air.Scheme also can be provided with the gas that is different from air as an alternative.
In particularly advantageous embodiment of the present invention, the checkout gear of described optics is arranged on the guiding valve tongue.Can provide structure compact especially cleaning device thus with monitor function.Described guiding valve tongue preferably moves by means of pneumatic passing cylinder.The operation desired compression air of pneumatic passing cylinder for example also can be used to cool off or clean the camera lens of the checkout gear of optics.In addition advantageously, in this design of cleaning device, can in once unique translational motion of guiding valve tongue, remove becket and supervision passing away.Described guiding valve tongue preferably has framework, and wherein the checkout gear of optics is arranged between the opposed side of framework.
In another favourable design of the present invention, the unit that described cleaning device is configured to independently and moves.Thus, this cleaning device is not for good and all to be arranged on the smelting furnace, but for example moves on in other words on the smelting furnace limit in order to clean and to supervise to take to after liquid metal is discharged.For this reason, this cleaning device for example is bearing on the roller element or is assemblied on the arm that can swing.This mobile cleaning device has stood temperature budget still less than the cleaning device of permanent arrangement on smelting furnace.Temperature budget still less is usually to playing a positive role the service life of mobile cleaning device.Also can reduce in case of necessity and be used to cool off the expense of this cleaning device or can fully phase out this cooling.This cleaning device is positioned at this smelting furnace when can move on smelting furnace in case of necessity.So, especially can form reaction force, be used for removing becket from the passing away mouth.
As long as described cleaning device and shutoff device exist as the device of structurally separate preferred permanent arrangement on smelting furnace, so advantageously, make the longitudinal central axis line of cleaning device and the longitudinal central axis line of shutoff device surround 90 angles of spending basically with both mutual orientations like this.Avoided when liquid metal is discharged problem, the especially shutoff device and/or cleaning device and for example collision of steel ladle of other technologies unit that occur by this layout from smelting furnace, this steel ladle has liquid metal when furnace crucible is swung.
Described task is resolved by the cleaning device of each described smelting furnace of claim 1 to 10 by being used for equally, the checkout gear of optics of image that this cleaning device has the guiding valve that has guiding valve tongue movably, be arranged in the scraping on the guiding valve tongue and be used to take the mouth of passing away and/or passing away.Cleaning that described cleaning device can be configured to make up and shutoff device.Scheme as an alternative, this cleaning device is the extra device that is independent of shutoff device.Especially when the cleaning device that uses shutoff device and structurally exist dividually with it, collision prevention device can be set, thereby avoid the assembly collision of shutoff device and cleaning device.For example can measure with the danger of collision prevention device collision detection based on the running time of the ultrasonic signal between the assembly that potential risk of collision is arranged of especially guiding valve and/or guiding valve tongue, shutoff device and cleaning device.Have the checkout gear of the optics of the image that is used to take passing away and/or passing away mouth by described cleaning device, can realize the supervision of passing away mouth and passing away in simple mode, this has been avoided operating personnel's danger.The checkout gear preferred arrangements of described optics is on guiding valve tongue movably.Thus, the checkout gear of optics can detect the image of passing away when removing becket.Thus, because supervising to small part of the removal of becket and passing away carried out simultaneously,, can further improve the production capacity of smelting furnace thus so can further reduce the mouth time cost of passing away in other words that is used to safeguard passing away.
Described cleaning device preferably includes and is used for locating and the adjusting device of directed scraping with respect to the passing away mouth.Can guarantee thus accurately to locate and/or directed described cleaning device with respect to the passing away mouth.Realize removing becket thus as well as possiblely and supervised passing away in case of necessity as well as possiblely.Described adjusting device especially is configured to a plurality of suspension arrangements that can regulate easily, for example eccentric wheel suspension arrangement or set screw.Thus, for example housing, guiding valve and/or guiding valve tongue can be adjusted position and orientation along three direction in spaces with respect to the passing away mouth independently of each other or jointly.
In addition advantageously, described cleaning device has cooling device.This cooling device is preferably so constructed, thereby can cool off all component of cleaning device as far as possible, however the checkout gear of optics especially.Can realize the assembly of cleaning device and the raising in the service life of whole cleaning device thus thus.
Especially advantageously, described cleaning device has the device of the air stream that is used to produce the checkout gear that washes away optics at least in part around.Thus, can cool off the checkout gear of optics on the one hand, can protect the camera lens of the checkout gear of optics to prevent to pollute in the visual field in other words on the other hand, method is that air stream is derived contaminant particle.
Description of drawings
Other advantage of the present invention obtains from embodiment, and described embodiment is schematically illustrated by means of following accompanying drawing.Wherein:
Fig. 1 be electric arc furnaces together with the profile that is in the cleaning device under the closed condition,
Fig. 2 be electric arc furnaces together with the profile that is in the cleaning device under the state that partially opens,
Fig. 3 is the vertical view that is in the cleaning device under the closed condition,
Fig. 4 is the vertical view that is in the cleaning device under the state that partially opens,
Fig. 5 is the side view that is in the cleaning device under the state that partially opens,
Fig. 6 is the cleaning of combination and the vertical view of shutoff device.
The specific embodiment
Fig. 1 shows the vertical section of the electric arc furnaces 1 that schematically shows.This electric arc furnaces 1 has the passing away 2 that has passing away mouth 3.This passage 2 is formed by hollow brick 3 '.This hollow brick 3 ' is the passing away mouth 3 outstanding bottoms that surpass electric arc furnaces 1 in other words.
Shutoff device 4 can be seen in the back of passing away mouth 3 in other words at passing away 2, passing away mouth 3 can be opened or close by means of this shutoff device.Fig. 1 shows the passing away mouth 3 that is in open mode after discharging liquid metal.
When from smelting furnace, discharging liquid metal, on passing away mouth 3, form metal pollutant usually.This pollutant is the becket M by liquid metal solidification in Fig. 1.Before closing passing away mouth 3 again, to remove this becket M.
For this reason, cleaning device 5 ' is arranged in the bottom of electric arc furnaces 1.The longitudinal axis of the longitudinal axis of cleaning device 5 ' and shutoff device 4 surrounds the right angle basically, thereby the damage of cleaning device 5 ' and/or shutoff device 4 is avoided the time in the furnace crucible swing in discharge process.
Described cleaning device 5 ' has the scraping 5 of wedge shape, and this scraping has scrapes limit 12.Scraping is arranged on the guiding valve tongue 8 of guiding valve 7.This guiding valve tongue 8 can be by means of pneumatic cylinder the vertically moving along cleaning device 5 ' that does not illustrate in Fig. 1.The guiding valve tongue 8 that described guiding valve 7 comprises pneumatic cylinder and has scraping 5.
Described guiding valve 7 is arranged in the inside of housing 17, this housing water cooling.For this reason, be provided with cooling device 10.This cooling device comprises in Fig. 1 and is used for cooling water being imported the housing inlet of housing 17 and being used for the housing that the water of heating is discharged from housing 17 is exported.
The checkout gear of optics is not shown for clear cause, yet this checkout gear is arranged in movably on the guiding valve tongue 8 in Fig. 1 and Fig. 2.
Replace cooling device 10 or as the replenishing of cooling device 10, described housing 17 can comprise the heat-proof device that does not illustrate.This heat-proof device for example can be configured to the mould material of solar heat protection, and this mould material surrounds described housing at least in part.
Described housing 17 is connected with the bottom of electric arc furnaces 1 by adjusting device 6.This adjusting device 6 allow housings 17 and thus guiding valve 7 adjust with respect to passing away mouth 3 along all Spatial Dimensions together with guiding valve tongue 8 and scraping 5.This adjusting device 6 is configured to a plurality of eccentric wheel suspension arrangements in Fig. 1.Yet this adjusting device 6 also can be realized with alternate manner method arbitrarily.
Fig. 2 shows identical with Fig. 1 basically theme.Yet the theme among Fig. 2 and the difference of the theme among Fig. 1 be, the guiding valve tongue 8 of described cleaning device 5 ' is shifted out now and is used to remove becket M on the passing away mouth 3.For this reason, guiding valve tongue 8 moves by the pneumatic passing cylinder that do not illustrate among Fig. 2 direction towards passing away mouth 3, makes scraping 5 on the guiding valve tongue 8 scrape limit 12 by means of it and removes becket M.
By before scraping limit 12 with respect to passing away mouth 3 adjustment, now can be directly at mouth 3 places and evenly remove becket M with hollow brick 3 ' thus.
In addition, described cleaning device 5 ' has the checkout gear of the optics that does not illustrate in Fig. 1 and Fig. 2, and this checkout gear is configured to video camera.Detect the image of passing away 2 and output on the screen with this checkout gear.Operating personnel determine according to image whether needs are taked maintenance measure on passing away 2.Partly in scraping process, realize supervision to passing away 2.Scheme is as an alternative removed beckets and the supervision of the state of passing away 2 is successively carried out from the mouth 3 of passing away 2.
In case safeguard and finish that guiding valve tongue 8 imports in the housing 17 of cooling once more.With shutoff device 4 passing away mouth 3 is closed subsequently.Fill described passing away 2 at least in part, and can again liquid metal be imported in the smelting furnace 1 or the formation liquid metal.
Fig. 3 shows the vertical view that is in the cleaning device 5 ' under the closed condition.This cleaning device 5 ' has housing 17.This housing 17 is preferably configured as double-walled, thereby the cooling medium preferred water can be imported in the intermediate space between two walls, and this cooling medium leaves this intermediate space with can being subjected to supervision.In addition, Fig. 3 shows cooling device 10, by means of this cooling device to housing 17 input or from housing 17, discharge cooling water.This housing 17 surrounds guiding valve 7.
Described guiding valve 7 comprises guiding valve tongue 8 and pneumatic cylinder 14.On guiding valve tongue 8, arranged optics checkout gear 9, be used to cool off and prevent to pollute the device 11 and have the scraping 5 of scraping limit 12 of becoming a mandarin of the checkout gear 9 of optics.
Described guiding valve 7 preferably places under the overvoltage by means of compressed air, and this compressed air for example obtains from the compressed air piping of pneumatic cylinder 14, and this compressed air of scheme is also imported in independent input channel as an alternative.Described overvoltage prevents that guiding valve 7 is contaminated.In addition, realized the piston that is not shown specifically in the accompanying drawings of passing cylinder 14 is cooled off by the air of input.
In addition, for example the device 11 that becomes a mandarin as the boost motor of air stream can use the overvoltage that exists in guiding valve 7, the checkout gear that this air stream cools off the checkout gear 9 of optics and washes away optics on the other hand around on the one hand, thereby basically can be by the shooting of pollutant interfering picture, the shooting of digit preference image.
From cleaning device 5 ', export by means of the data wire 15 of the checkout gear 9 of optics by the data that the checkout gear 9 of optics detects, and after the data processing, data are presented on the screen 18 in case of necessity.In addition, guiding valve tongue 8 has guiding valve tongue framework in Fig. 3, and data wire 15 can partly be laid in the guiding valve tongue framework.The screen 18 that the image of the data that the checkout gear 9 based on optics detected is shown can reproduce on the screen 18 of Surveillance center and/or on the removable screen that carries 18.In case of necessity, the image of the checkout gear 9 of optics can directly reproduce on the screen that can be directly connected on the data wire 15 by data wire 15.
Being used on the cleaning device 5 ' clearly be not shown in Fig. 1 to 6 moves the gas connection of pneumatic passing cylinder 14.
In addition, cleaning device 5 ' comprises adjusting device 6, can adjust cleaning device 5 ', especially adjust and have the scraping 5 of scraping limit 12 with respect to the passing away mouth with this adjusting device.Especially advantageously, described adjusting device 6 has been realized the motion of described cleaning device 5 ' around three separate axis.
Now Fig. 4 shows the cleaning device 5 ' that is in closed condition in Fig. 3 and is in situation in the open mode.This state of cleaning device 5 ' for example is the state that is used to realize to safeguard, is particularly useful for supervising the passing away of smelting furnace.
The checkout gear that for example is configured to the optics of video camera is arranged in housing 17 outside of cleaning device 5 ' and so positions, and makes its visual field comprise passing away passing away mouth in other words.The checkout gear 9 of this optics comprises the protective cover that is not shown specifically in the accompanying drawings.This protective cover is a partially transparent at least for the ray spectrum that can the checkout gear 9 by this optics detects.Described protective cover preferably has form, can see in the passing away by the checkout gear 9 of this form optics.
The device 11 that becomes a mandarin shown in Figure 4 utilizes the guiding valve inner space that is in excessive rolling for air stream is provided.Constituted air stream by the pressure reduction between guiding valve inner space and the atmosphere, device 11 channeling conducts that become a mandarin are crossed in this circulation of air.This air stream is brought to the checkout gear 9 of optics.This air stream is used for cooling on the one hand and is used for the assembly relevant with photographic images that cleaning prevents to pollute cleaning device 5 ' in other words on the other hand.The described device 11 that becomes a mandarin is divided into air stream and is used to prevent second share polluting first share of light path and be used to cool off the checkout gear 9 of optics.
Avoid polluting the protective cover of the checkout gear of optics thus by an air tributary, method is to stop the contaminant particle deposition, be deposited on " form " of protective cover of checkout gear 9 of optics especially enduringly.In addition, blow " form " of protective device continuously.For the checkout gear 9 that cools off optics, directly an air tributary is imported in the protective cover of the checkout gear of wherein having arranged optics.
Fig. 5 shows the side view of the vertical view shown in Figure 4 of cleaning device 5 '.This view only is used for clearly understanding, and does not bring new theme basically with respect to the cleaning device 5 ' shown in Fig. 4.
Fig. 6 shows the cleaning and the shutoff device 5 of combination " vertical view.Thus, do not need the independent shutoff device represented with Reference numeral 4 as in Fig. 1 and Fig. 2.Cleaning and the supervision and the opening and closing of passing away mouth have been realized by means of same device.
The cleaning of the combination among Fig. 6 and shutoff device 5 " be that with the difference of cleaning device 5 ' among Fig. 1 to 5 extra closing element 13 is arranged on the guiding valve tongue 8.
In addition, the cleaning of described combination and shutoff device 5 " have a mechanism that is used at the integrated deviation meter of passing cylinder 14.Guiding valve tongue 8 can be moved to targetedly by this integrated deviation meter and to scrape in position, closed position or the supervision position.
In scraping the position, can clean the passing away mouth.Especially can remove the ring that constitutes by the metal that solidifies from the passing away mouth.In the closed position of cleaning that makes up and shutoff device, close the passing away mouth by closing element 13, and can fill passing away.The supervision position in, can detect passing away the mouth image and/or the image of passing away.
Cleaning and shutoff device that all cleaning devices that illustrate in an embodiment make up in other words for good and all are arranged on the smelting furnace usually.This is practical and the difficult fault that produces.
Yet also can be provided with respect to the movable cleaning device of smelting furnace, for example move by swing arm or conveying device.This cleaning device just can only not long ago take on the smelting furnace limit and so position in other words and lock in discharge, thereby can safeguard passing away passing away mouth in other words by means of this cleaning device that moves.This for example allows to use neatly cleaning device on different smelting furnaces.
Claims (14)
1. smelting furnace (1), especially electric arc furnaces, it has and is used for discharging the passing away (2) of liquid metal, the shutoff device (4) of mouth (3) that is used to open and close passing away (2) and the cleaning device (5,5 ', 5 ") that is used for removing the metal on the mouth (3) that is deposited on passing away (2) from smelting furnace (1); it is characterized in that, described cleaning device has the checkout gear (9) of optics of the image of the mouth (3) that is used to take passing away (2) and/or passing away (2).
2. by the described smelting furnace of claim 1, it is characterized in that described cleaning device (5,5 ', 5 ") comprises the scraping (5) of wedge shape, this scraping has scrapes limit (12).
3. by claim 1 or 2 described smelting furnaces, it is characterized in that described cleaning device (5,5 ', 5 ") comprises shutoff device (4).
4. by claim 1 or 2 described smelting furnaces, it is characterized in that, described cleaning device (5,5 ', 5 ") has adjusting device (6), and this adjusting device is used for respect to mouth (3) location of passing away (2) and directed described cleaning device (5,5 ', 5 ").
5. by the described smelting furnace of claim 4, it is characterized in that described cleaning device (5,5 ', 5 ") comprises and have the movably guiding valve (7) of guiding valve tongue (8) that wherein scraping (5) is arranged on the end of guiding valve tongue (8).
6. by each described smelting furnace in the claim 1 to 5, it is characterized in that the checkout gear of described optics is arranged in movably on the guiding valve tongue (8).
7. by each described smelting furnace in the claim 1 to 6, it is characterized in that, be provided with the cooling device (10) of the checkout gear (9) that is used to cool off cleaning device (5,5 ', 5 ") and/or optics.
8. by each described smelting furnace in the claim 1 to 7, it is characterized in that, be provided with the device (11) of the air stream that is used to produce the checkout gear (9) that washes away optics at least in part around.
9. by each described smelting furnace in the claim 6 to 8, it is characterized in that the checkout gear of described optics (9) is arranged on the guiding valve tongue (8).
10. by each described smelting furnace in the claim 1 to 9, it is characterized in that the unit that described cleaning device (5,5 ') is configured to independently and moves.
11. be used for cleaning device (5,5 ', 5 "); this cleaning device has the guiding valve (7) that has guiding valve tongue (8) movably and is arranged in scraping (5) on the guiding valve tongue (8); it is characterized in that, be provided with the checkout gear (9) of optics of the image of the mouth (3) that is used to take passing away (2) and/or passing away (2) by each described smelting furnace (1) of claim 1 to 10.
12. by the described cleaning device of claim 11, it is characterized in that, be provided with and be used for respect to mouth (3) location of passing away (2) and the adjusting device (6) of directed scraping (5).
13. by claim 11 or 12 described cleaning devices, it is characterized in that, be provided with the cooling device (10,16) of the checkout gear (9) that is particularly useful for cooling off optics.
14. by each described cleaning device in the claim 11 to 13, it is characterized in that, be provided with the device (11) of the air stream that is used to produce the checkout gear (9) that washes away optics at least in part around.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007058446.8 | 2007-12-05 | ||
| DE102007058446A DE102007058446A1 (en) | 2007-12-05 | 2007-12-05 | Oven and cleaning device for a stove |
| PCT/EP2008/064908 WO2009071407A1 (en) | 2007-12-05 | 2008-11-04 | Furnace and cleaning device for a furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101889185A true CN101889185A (en) | 2010-11-17 |
| CN101889185B CN101889185B (en) | 2013-07-24 |
Family
ID=40260788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880119217.7A Expired - Fee Related CN101889185B (en) | 2007-12-05 | 2008-11-04 | Furnace and cleaning device for a furnace |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN101889185B (en) |
| DE (1) | DE102007058446A1 (en) |
| RU (1) | RU2477756C2 (en) |
| WO (1) | WO2009071407A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418398A (en) * | 2021-06-21 | 2021-09-21 | 中国原子能科学研究院 | Discharge valve and melting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2628781C2 (en) * | 1975-07-01 | 1983-10-20 | Centre de Recherches Métallurgiques-Centrum voor Research in de Metallurgie-Association sans but lucratif-Vereniging zonder winstoogmerk, Bruxelles | Device for observing the interior of an enclosed space, in particular a blast furnace |
| IT1071206B (en) * | 1975-07-01 | 1985-04-02 | Centre Rech Metallurgique | DEVICE AND PROCEDURE FOR SOR TO CHOOSE THE INTERIOR OF A ROOM |
| FR2598437B1 (en) * | 1986-05-06 | 1989-05-26 | Vallourec | PROCESS AND DEVICE FOR CLEANING THE CASTING ORIFICE OF A BOTTOM CAST STEEL FURNACE |
| FR2616365B1 (en) * | 1987-06-11 | 1989-10-27 | Clecim Sa | IMPROVED CLOSURE DEVICE WITH CLEANING OF A CASTING HOLE |
| RU1781526C (en) * | 1991-02-11 | 1992-12-15 | Украинский Научно-Исследовательский Институт | Induction furnace with bottom casting |
| FR2704634B1 (en) * | 1993-04-29 | 1995-06-02 | Commissariat Energie Atomique | Device for extracting by melt with adjustable flow rate a molten material in a melting furnace with cold walls. |
| JPH074852A (en) * | 1993-06-18 | 1995-01-10 | Nippon Steel Corp | Automatic regulating device for filling tapping hole of electric furnace with sand |
| US5830407A (en) * | 1996-10-17 | 1998-11-03 | Kvaerner U.S. Inc. | Pressurized port for viewing and measuring properties of a molten metal bath |
| DE10034370A1 (en) | 2000-07-14 | 2002-01-24 | Sms Demag Ag | Method for closing or opening the tap hole of a metallurgical vessel, in particular an electric arc furnace, and associated bottom tapping |
| DE10111273A1 (en) * | 2001-03-09 | 2002-09-12 | Sms Demag Ag | Method and device for replacing a slide assembly on a metallurgical vessel, in particular on an electric melting furnace |
| JP2003302024A (en) * | 2002-04-11 | 2003-10-24 | Ebara Corp | Melting furnace and slag removing method for molten slag discharge portion |
| JP4397039B2 (en) * | 2004-10-19 | 2010-01-13 | 財団法人電力中央研究所 | Molten slag flow monitoring device |
| EP1900458A1 (en) * | 2006-09-15 | 2008-03-19 | Calamari S.p.A. | Casting apparatus for metal materials |
-
2007
- 2007-12-05 DE DE102007058446A patent/DE102007058446A1/en not_active Withdrawn
-
2008
- 2008-11-04 CN CN200880119217.7A patent/CN101889185B/en not_active Expired - Fee Related
- 2008-11-04 WO PCT/EP2008/064908 patent/WO2009071407A1/en active Application Filing
- 2008-11-04 RU RU2010127244/02A patent/RU2477756C2/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418398A (en) * | 2021-06-21 | 2021-09-21 | 中国原子能科学研究院 | Discharge valve and melting system |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2010127244A (en) | 2012-01-10 |
| RU2477756C2 (en) | 2013-03-20 |
| CN101889185B (en) | 2013-07-24 |
| WO2009071407A1 (en) | 2009-06-11 |
| DE102007058446A1 (en) | 2009-06-10 |
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