CN103074459B - Slagless tapping system - Google Patents
Slagless tapping system Download PDFInfo
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- CN103074459B CN103074459B CN201310044959.0A CN201310044959A CN103074459B CN 103074459 B CN103074459 B CN 103074459B CN 201310044959 A CN201310044959 A CN 201310044959A CN 103074459 B CN103074459 B CN 103074459B
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- tap
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention provides a slagless tapping system, which comprises a tapping channel arranged below a taphole of a blast furnace, a skimmer arranged on the tapping channel and used for preliminarily separating slag in molten iron, and a slag channel arranged at the upstream part of the skimmer and used for discharging the slag, and also comprises an eccentric bottom tapping furnace arranged at the tail end of the tapping channel and used for further separating the slag in the molten iron separated by the skimmer, wherein the eccentric bottom tapping furnace comprises a furnace body and a tilting mechanism capable of allowing the furnace body to tilt. According to the slagless tapping system, the quality of molten iron can be improved, the amount of the slag entrapped into a molten iron tank is reduced, the erosion of a refractory material near an iron falling point is reduced, the cleanliness of the molten iron is improved, and the low-slag or even slagless tapping is realized.
Description
Technical field
The present invention relates to and a kind of to tap a blast furnace system without slag, genus ironmaking technology field.
Background technology
Along with the fast development of Chinese national economy, smelting iron and steel level improve constantly the utilization with a large amount of modern technique, the construction of iron-smelting blast furnace and production have had very fast development, but compared to other operations, blast furnace casting technique does not for many years have too large improvement, this constrains the raising of steel products quality greatly, traditional mode of tapping a blast furnace brings a large amount of blast furnace slags into iron ladle in the process of tapping a blast furnace, become the obstacle realizing (without slag) less-slag melting in hot metal pretreatment and process for making, steel making working procedure is smelted to the Clean Steels such as ultralow phosphorus, low-sulfur and cause difficulty.
At present; industrial large and medium-sized blast furnace iron runner generally adopts the refractory materials of cast-in-site to form working lining; owing to not protecting facility; near the iron spot that falls, molten iron is quite serious to the erosion of refractory materials; a large amount of refractory materialss is involved in molten iron and becomes impurity, improves produce very adverse influence to subsequent handling and quality product.
In addition, in the process of tapping a blast furnace, existing go out iron process only have together simple slag sluicing system device and skimmer, the effect of skimming can not adapt to the quality control requirement of increasingly stringent, be mixed in molten iron by the blast furnace slag of skimmer and flow directly into iron ladle, also become the impurity of subsequent handling.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of and to tap a blast furnace system without slag, this system of tapping a blast furnace can improve molten steel quality, reduce the quantity of slag being involved in iron ladle, reduce the erosion of refractory materials near the iron spot that falls, improve molten iron cleanliness factor, realize few slag and even tap a blast furnace without slag.
To achieve these goals, provided by the inventionly to tap a blast furnace system without slag, comprise and be arranged at casting house below blast furnace iron notch, be arranged on casting house for the skimmer of slag in initial gross separation molten iron and be located at described skimmer upstream for draining the slag runner of slag, also comprise: eccentric-bottom goes out iron furnace, be arranged at described casting house end, for being separated the slag in the molten iron of skimmer further, described eccentric-bottom goes out the tilting mechanism that iron furnace comprises body of heater and described body of heater is fascinated.
As a kind of preferred implementation, described body of heater comprises antetheca, rear wall, diapire, the first side wall and the second sidewall; Also comprise: iron notch, be arranged at described diapire and near described the first side wall, in described iron notch, filled up filler, can in described body of heater molten iron static pressure effect under automatically fall, tap a blast furnace to realize automatic casting; Iron notch baffle plate, is arranged at described bottom wall outer, for blocking iron notch; And slag door, be arranged at the top of described second sidewall, for controlling the discharge of slag; Described second sidewall is to body of heater outer inclination, and the top of described second sidewall and the angle α of horizontal direction are greater than other parts of described second sidewall and the angle β of horizontal direction; The vertical height of described second sidewall is less than the vertical height of described the first side wall.
As a kind of preferred implementation, described tilting mechanism comprises: reel cage, is positioned at the below of described body of heater, for supporting and fixing described body of heater and provide pivot for fascinating of described body of heater; And the cylinder that fascinates, its one end is arranged on the outside of described second sidewall, for making tilting furnace.
As a kind of preferred implementation, described skimmer is vertical with molten iron flow direction, and embeds casting house, described skimmer bottom lower than bottom described slag runner but higher than bottom casting house.
As a kind of preferred implementation, this also comprises without slag system of tapping a blast furnace: water cooling plant, be arranged at below blast furnace iron notch to the groove both sides of tapping a blast furnace fallen between iron spot, tap a blast furnace between the outer wall of groove and the refractory materials working lining of building described in being embedded in, control by the flow controlling cold water the cooling intensity that described casting house falls near iron spot.Preferably, described water cooling plant is multiple connected U-tube roads, is provided with cold water inlet and cooling water outlet, and described cold water inlet is arranged at described casting house front end, a sidewall of the groove that taps a blast furnace described in cooling water outlet is arranged at.Preferably, the length of described water cooling plant is less than 6 meters.
As a kind of preferred implementation, two skimmers that described skimmer is a skimmer or arranges continuously.
Beneficial effect of the present invention:
(1) the present invention can make the molten iron Yin Wendu of close working lining lower than zero pour in refractory materials working lining surface solidification by arranging refrigerating unit at casting house place, thus near main iron hook falls iron spot one section form ladle heel layer protective layer, the molten iron gone out from blast furnace iron notch effectively can be stoped to form serious erosion to main iron hook refractory materials working lining, effectively extend trough liner work-ing life; The multiple skimmers of the present invention by going out cleek and arranging continuously, slag sluicing system is carried out in classification, and slows down molten iron flow rates, reduces slag amount, makes the slag of more than 95% at this stage and molten iron separately, can reduce the slagging-off pressure of subsequent handling.
(2) eccentric-bottom used in the present invention goes out the function that iron furnace has storage molten iron concurrently, impels slag floating and realization to tap a blast furnace without slag;
(3) of the present inventionly go out iron process without slag system of tapping a blast furnace compared to what adopting at present, working efficiency is improved, and quality product gets a promotion, labour intensity declines to a great extent, and can reduce costs, improve effects, make blast furnace casting technique more controlled, quality product is more stable.
In a word, this system of tapping a blast furnace can improve molten steel quality, reduces the quantity of slag being involved in iron ladle, reduces the erosion of refractory materials near the iron spot that falls, improves molten iron cleanliness factor, realizes few slag and even taps a blast furnace without slag.
Accompanying drawing explanation
Fig. 1 is the total system structural representation of the preferred embodiment for the present invention;
Fig. 2 is that the casting house of the preferred embodiment for the present invention falls circulating water cooling device structural representation near iron spot;
Fig. 3 is the casting house refrigerating unit schematic diagram of the preferred embodiment for the present invention;
Fig. 4 is the skimmer sectional view of the preferred embodiment for the present invention;
Fig. 5 is the structural representation that the eccentric-bottom of the preferred embodiment for the present invention goes out iron furnace;
Fig. 6 is the vertical view that the eccentric-bottom of the preferred embodiment for the present invention goes out iron furnace.
Wherein, description of reference numerals is as follows: 100, casting house; 200, eccentric-bottom goes out iron furnace; 1, blast furnace iron notch; 2, water cooling plant; 3, slag runner; 4, skimmer; 41, body; 411, the upper surface of body forebody; 412, the upper surface that body is latter half of; 42, lintel; 43, slag iron entrance; 44, molten iron outlet; 45, molten iron passage; 5, tap a blast furnace groove outer wall; The refractory materials working lining of 6, building; 7 slag doors; 8, fascinate cylinder; 9, cement support pier; 10, body of heater; 11, iron notch baffle plate; 12, iron notch; 13, reel cage.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described, but the present invention is not limited to this.
Provided by the inventionly to tap a blast furnace system without slag, comprise be arranged at casting house 100 below blast furnace iron notch 1, the skimmer 4 that is arranged at slag in initial gross separation molten iron on casting house 100 and be located at described skimmer 4 upstream and refer to the upstream on molten iron flow direction for the so-called upstream of slag runner 3(of draining slag), also comprise: being arranged at described casting house 100 end, going out iron furnace 200 for being separated the eccentric-bottom of slag in the molten iron of skimmer 4 further, molten iron is flowed into iron ladle by its mode of being tapped a blast furnace by eccentric-bottom; Described eccentric-bottom goes out the tilting mechanism that iron furnace 200 comprises body of heater 10 and described body of heater is fascinated.Body of heater can be tilted at certain angle, thus realize eccentric-bottom and to tap a blast furnace function without slag.Tilting mechanism of the present invention can be tiling arrangement conventional in Iron and Steel Production, the hydraulic tilting device that the tiling arrangement that such as converter uses, slag ladle use.
As a kind of preferred implementation, the front view shape approximation of described body of heater 10 is inverted trapezoidal, see Fig. 1, Fig. 5, its vertical view, see Fig. 6, comprises antetheca, rear wall, diapire, the first side wall (away from casting house 100) and the second sidewall (near casting house 100), also comprise: iron notch 12, be arranged at described diapire and close described the first side wall, be filled with filler in it, automatically can fall under ferrostatic pressure effect, tap a blast furnace to realize automatic casting, described filler can be general acidic refractory materials, iron notch baffle plate 11, is arranged at described bottom wall outer, for blocking iron notch, and slag door 7, be arranged at the top of described second sidewall, for controlling the discharge of slag, slag door 7 can arrange 2 or more continuously, has been set up in parallel two ballast aggregate door 7, first ballast aggregate doors and is directly erected on the second side wall surface of body of heater in Fig. 1, second ballast aggregate door be arranged on the first ballast aggregate door below and keep certain distance with the first ballast aggregate door, and second ballast aggregate door bottom and the second side wall surface of body of heater between leave certain space, the two ballast aggregate doors 7 arranged so better can control the discharge of slag, described second sidewall is to body of heater 10 outer inclination, and the top of described second sidewall and the angle α of horizontal direction are greater than other parts of described second sidewall and the angle β of horizontal direction, the structure that angle α is preferably close to 180o(second sidewall also can briefly become as follows: described second sidewall comprises the first part and second section that mutually connect continuously, wherein first part is connected with described diapire, it is to body of heater 10 outer inclination, also the angle being horizontal direction with diapire is β, second section is positioned at the top of first part, it continues to body of heater 10 outer inclination, also the angle being horizontal direction with diapire is α, but α > β, in addition, the top of second section is provided with slag door 7), the vertical height of described second sidewall is less than the vertical height of described the first side wall, is preferably the vertical height a little less than described the first side wall, so that slag goes out from slag door row.Body of heater 10 adopts general acidic refractory materials such as clay brick to be built into.
As a kind of preferred implementation, see Fig. 1 and Fig. 5, described tilting mechanism comprises: reel cage 13, be approximately Y type, be positioned at the below of described body of heater 10, for supporting and fixing described body of heater 10 and provide pivot for described fascinating of body of heater 10, the base of described reel cage 13 is placed on cement support pier 9; And the cylinder 8 that fascinates, its one end is arranged on the outside of described second sidewall, and the other end is placed in the U-shaped groove of cement support pier, described in the cylinder 8 that fascinates tilt for making body of heater 10, described in the cylinder 8 that fascinates can be that hydraulic pressure fascinates cylinder.
As a kind of preferred implementation, see Fig. 1, described skimmer 4 can realize the dynamic quantity of slag and control, be positioned at directly over casting house 100, vertical with molten iron flow direction, and embed casting house 100 certain depth, it is bottom lower than bottom slag runner 3, but bottom casting house 100, the molten iron flowed out from blast furnace is through the physical sepn of skimmer 4, major part slag flows into slag runner, has the passage that taps a blast furnace between below skimmer 4 and at the bottom of casting house, and the slag that molten iron fails to be separated with part is flowed out by this passage.More preferably, adopt above-mentioned method to set up that multiple skimmer 4 is set continuously directly over casting house 100, two skimmers are most preferably set continuously, thus realize the separation of multistage slag by multiple skimmer.Multiple skimmer can share slag runner 3, and each skimmer converges at shared slag runner 3 i.e. main slag runner 3 by respective Zhigou.
The skimmer 4 used in the present invention can be conventional skimmer used in the art, than skimmer as described in Figure 4, the lintel 42 comprising body 41 and be positioned on body 41, treat that slag iron mixture enters skimmer from slag iron entrance 43, molten iron after slag sluicing system flows through molten iron passage 45 and flows out skimmer from molten iron outlet 44, wherein the gradient of the upper surface 411 of body forebody is more slow, object be allow slag iron mixture inflow velocity more slowly, and the gradient of the latter half of upper surface 412 of body compared with the upper surface 411 of body forebody the gradient more suddenly, object allows the molten iron through slag sluicing system flow away fast, the slag runner head when the flow that taps a blast furnace is large is avoided to cross iron.Body 41 can be in any position on casting house 100 horizontal (i.e. width), the preferably middle part of casting house transverse direction.
As a kind of preferred implementation, see Fig. 1, Fig. 2 and Fig. 3, of the present inventionly also comprise water cooling plant 2 without slag system of tapping a blast furnace, be arranged at below blast furnace iron notch 1 to the groove both sides of tapping a blast furnace fallen between iron spot, tap a blast furnace between groove outer wall 5 and the refractory materials working lining 6 of building described in being embedded in, described water cooling plant can be water cooling plant as shown in Figure 2, multiple connected U-tube roads, pipe material is plain metal pipe, one is bilateral symmetry between U-tube and the U-tube be adjacent, and also can be water cooling plant as shown in Figure 3; It is provided with cold water inlet and cooling water outlet, and described cold water inlet is arranged at described casting house front end, a sidewall of the groove that taps a blast furnace described in cooling water outlet is arranged at, and controls by controlling the flow of cold water the cooling intensity that described casting house falls near iron spot.The length of described water cooling plant is preferably less than 6 meters.
Above preferred implementation can independent assortment.
The method of work of above-mentioned system of tapping a blast furnace without slag provided by the invention, comprises the steps:
Step one, the molten iron through blast-furnace smelting enters casting house 100 after blast furnace iron notch 1 flows out;
Step 2, the skimmer 3 of the molten iron in described casting house 100 through being arranged on casting house, thus the slag in initial gross separation molten iron, and slag is drained by slag runner 3;
Step 3, the eccentric-bottom being located at casting house 100 end by described casting house 100 inflow through the molten iron of described skimmer 3 goes out iron furnace 200, along with the continuous inflow of molten iron, the molten iron of new inflow forms stirring action to the molten iron in stove, in the process, inclusion floating in molten iron, discharges along slag door 7 such as more than slag during slag door height automatically when the quantity of slag is enough large, until molten iron described eccentric-bottom go out in iron furnace to gather described eccentric-bottom tap a blast furnace furnace volume more than 50% time, open the iron notch baffle plate 11 that eccentric-bottom goes out iron furnace, filler in iron notch 12 automatically falls under ferrostatic pressure effect, molten iron flows into the iron ladle below iron notch, realize automatic casting to tap a blast furnace, treat that volume that the complete and eccentric-bottom of this blast furnace casting goes out in iron furnace to remain molten iron is that eccentric-bottom taps a blast furnace the 10%-20%(such as 1000 kilograms of furnace volume, it to tap a blast furnace 15% of furnace volume for eccentric-bottom) time, being continued to tap a blast furnace to iron notch side in the mode of fascinating by body of heater 10 by the cylinder 8 that fascinates, (reason now adopting the mode of fascinating to tap is: due to molten iron depth shallower, if do not fascinate tapping, slag in stove will flow out together with iron, the eccentric-bottom that now fascinates taps a blast furnace furnace body, can ensure there are enough molten iron degree of depth in iron notch position), turning angle is preferably about 3 °, when the volume that eccentric-bottom goes out in iron furnace to remain molten iron be automatic casting tap a blast furnace stop time eccentric-bottom go out in iron furnace to remain the 3%-7%(such as 50 kilograms of molten iron volume) time returns rapidly to incline and body of heater replied enter iron ladle for level to prevent slag, return process of inclining also have a small amount of about 5% residue molten iron and a little slag flow in iron ladle, then iron notch is closed, wait for blast furnace casting next time.
As a kind of preferred implementation, open water device for cooling while blast furnace casting, closes described water cooling plant after forming one deck ladle heel layer near the iron spot that falls.The ladle heel layer formed near the iron spot that falls can protect the erosion of the refractory materials of casting house internal layer effectively, thus decreases the impurity entered in molten iron.
If adopt water cooling plant 2 of the present invention without slag system of tapping a blast furnace, skimmer 3 and eccentric-bottom go out iron furnace 200, and in molten iron, the removal effect of slag is best simultaneously.
Should be appreciated that the purposes of these embodiments is only not intended to for illustration of the present invention limit the scope of the invention.In addition; also should understand; after having read technology contents of the present invention, those skilled in the art can make various change, amendment and/or modification to the present invention, and these all equivalent form of values fall within the protection domain that the application's appended claims limits equally.
Claims (7)
1. to tap a blast furnace a system without slag, comprise and be arranged at casting house below blast furnace iron notch, be arranged on casting house for the skimmer of slag in initial gross separation molten iron and be located at described skimmer upstream for draining the slag runner of slag, it is characterized in that, also comprise:
Eccentric-bottom goes out iron furnace, is arranged at described casting house end, and for being separated the slag in the molten iron of skimmer further, described eccentric-bottom goes out the tilting mechanism that iron furnace comprises body of heater and described body of heater is fascinated;
Described body of heater comprises antetheca, rear wall, diapire, the first side wall and the second sidewall; Also comprise:
Iron notch, is arranged at described diapire and near described the first side wall, has filled up filler in described iron notch, can in described body of heater molten iron static pressure effect under automatically fall, tap a blast furnace to realize automatic casting;
Iron notch baffle plate, is arranged at described bottom wall outer, for blocking iron notch; And
Slag door, is arranged at the top of described second sidewall, for controlling the discharge of slag;
Described second sidewall is to body of heater outer inclination, and the top of described second sidewall and the angle α of horizontal direction are greater than other parts of described second sidewall and the angle β of horizontal direction; The vertical height of described second sidewall is less than the vertical height of described the first side wall.
2. according to claim 1ly to tap a blast furnace system without slag, it is characterized in that,
Described tilting mechanism comprises:
Reel cage, is positioned at the below of described body of heater, for supporting and fixing described body of heater and provide pivot for fascinating of described body of heater; And
Fascinate cylinder, and its one end is arranged on the outside of described second sidewall, for making tilting furnace.
3. according to claim 1ly to tap a blast furnace system without slag, it is characterized in that,
Described skimmer is vertical with molten iron flow direction, and embeds casting house, described skimmer bottom lower than bottom described slag runner but higher than bottom casting house.
4. according to claim 1ly to tap a blast furnace system without slag, it is characterized in that, also comprise:
Water cooling plant, be arranged at below blast furnace iron notch to the groove both sides of tapping a blast furnace fallen between iron spot, tap a blast furnace between the outer wall of groove and the refractory materials working lining of building described in being embedded in, control by the flow controlling cold water the cooling intensity that described casting house falls near iron spot.
5. according to claim 4ly to tap a blast furnace system without slag, it is characterized in that,
Described water cooling plant is multiple connected U-tube roads, is provided with cold water inlet and cooling water outlet, and described cold water inlet is arranged at described casting house front end, a sidewall of the groove that taps a blast furnace described in cooling water outlet is arranged at.
6. according to claim 4ly to tap a blast furnace system without slag, it is characterized in that,
The length of described water cooling plant is less than 6 meters.
7. according to claim 1ly to tap a blast furnace system without slag, it is characterized in that,
Two skimmers that described skimmer is a skimmer or arranges continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044959.0A CN103074459B (en) | 2013-02-04 | 2013-02-04 | Slagless tapping system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044959.0A CN103074459B (en) | 2013-02-04 | 2013-02-04 | Slagless tapping system |
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| CN103074459B true CN103074459B (en) | 2015-01-21 |
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| CN108941481B (en) * | 2018-08-06 | 2020-12-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Method and device for reducing temperature drop of molten iron |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4105438A (en) * | 1977-04-19 | 1978-08-08 | Sherwood William L | Continuous metal melting, withdrawal and discharge from rotary furnaces |
| JPS586909A (en) * | 1981-07-02 | 1983-01-14 | Kawasaki Steel Corp | Molten iron receiving installation for blast furnace hearth |
| JPH0225510A (en) * | 1988-07-15 | 1990-01-29 | Kawasaki Steel Corp | Method for separated-removing pre-treated molten slag from molten iron on casting floor in blast furnace |
| CN1044608A (en) * | 1989-02-06 | 1990-08-15 | 克吕克讷钢有限公司 | When carrying, casting pot avoids producing the method for flue gas from metallurgical tank and with the equipment of liquid metals from metallurgical furnace input casting pot at metallurgical process and liquid metals |
| JPH04354811A (en) * | 1991-05-31 | 1992-12-09 | Kawasaki Steel Corp | Hot metal tapping trough having flexicibility in running lifting and tilting |
| JPH11229013A (en) * | 1998-02-13 | 1999-08-24 | Kawasaki Steel Corp | Method for restraining weir of runner refractory and device therefor |
| CN2579904Y (en) * | 2002-11-29 | 2003-10-15 | 南京钢铁集团有限公司 | Blast furnace molten iron slag-iron separation device |
| CN201106055Y (en) * | 2007-10-29 | 2008-08-27 | 巩义市顺祥耐材有限公司 | Tapping groove of blast furnace |
| CN102634624A (en) * | 2012-05-07 | 2012-08-15 | 郭平 | Method for tapping and pouring hot metal at bottom from hot metal ladle |
| CN203096099U (en) * | 2013-02-04 | 2013-07-31 | 莱芜钢铁集团有限公司 | Slag-free tapping system |
-
2013
- 2013-02-04 CN CN201310044959.0A patent/CN103074459B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4105438A (en) * | 1977-04-19 | 1978-08-08 | Sherwood William L | Continuous metal melting, withdrawal and discharge from rotary furnaces |
| JPS586909A (en) * | 1981-07-02 | 1983-01-14 | Kawasaki Steel Corp | Molten iron receiving installation for blast furnace hearth |
| JPH0225510A (en) * | 1988-07-15 | 1990-01-29 | Kawasaki Steel Corp | Method for separated-removing pre-treated molten slag from molten iron on casting floor in blast furnace |
| CN1044608A (en) * | 1989-02-06 | 1990-08-15 | 克吕克讷钢有限公司 | When carrying, casting pot avoids producing the method for flue gas from metallurgical tank and with the equipment of liquid metals from metallurgical furnace input casting pot at metallurgical process and liquid metals |
| JPH04354811A (en) * | 1991-05-31 | 1992-12-09 | Kawasaki Steel Corp | Hot metal tapping trough having flexicibility in running lifting and tilting |
| JPH11229013A (en) * | 1998-02-13 | 1999-08-24 | Kawasaki Steel Corp | Method for restraining weir of runner refractory and device therefor |
| CN2579904Y (en) * | 2002-11-29 | 2003-10-15 | 南京钢铁集团有限公司 | Blast furnace molten iron slag-iron separation device |
| CN201106055Y (en) * | 2007-10-29 | 2008-08-27 | 巩义市顺祥耐材有限公司 | Tapping groove of blast furnace |
| CN102634624A (en) * | 2012-05-07 | 2012-08-15 | 郭平 | Method for tapping and pouring hot metal at bottom from hot metal ladle |
| CN203096099U (en) * | 2013-02-04 | 2013-07-31 | 莱芜钢铁集团有限公司 | Slag-free tapping system |
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