CN103343632A - Compact hot metal conveying system - Google Patents
Compact hot metal conveying system Download PDFInfo
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- CN103343632A CN103343632A CN2013103006240A CN201310300624A CN103343632A CN 103343632 A CN103343632 A CN 103343632A CN 2013103006240 A CN2013103006240 A CN 2013103006240A CN 201310300624 A CN201310300624 A CN 201310300624A CN 103343632 A CN103343632 A CN 103343632A
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Abstract
The invention discloses a compact hot metal conveying system. The system comprises a blast furnace area (100), a steelmaking workshop (200) and a transition bay (300), wherein a blast furnace (1) is arranged in the blast furnace area (100), an iron outlet of the blast furnace (1) is provided with a hot metal conveying line (5), the steelmaking workshop (200) is provided with a converter (7) and a feeding bay (11), the hot metal conveying line (5) in the blast furnace area (100) extends into the feeding bay (11), and the transition bay (300) is located between the blast furnace area (100) and the steelmaking workshop (200) and is used for hot metal buffering during accidents in the steelmaking workshop (200). The blast furnace area (100), the steelmaking workshop (200) and the transition bay (300) are arranged in parallel and connected through the hot metal conveying line (5), and the hot metal conveying line (5) is arranged vertical to the blast furnace area (100), the steelmaking workshop (200) and the transition bay (300). The compact hot metal conveying system is smooth in process, compact in general drawing, low in investment and operation cost, and suitable for newly-built integrated iron and steel enterprises.
Description
Technical field
The present invention relates to a kind of molten iron transportation system that belongs to the metallurgical technology technical field, relate in particular to a kind of close-coupled molten iron transportation system that comprises ironmaking-steel-making layout, molten iron transportation, interface guarantee and tank body maintenance etc.
Background technology
As linking buffering and the transition between blast furnace and the converter, molten iron transportation system not only comprises linking, coupling, the coordination and stable of basic parameters such as material stream, energy stream, temperature, time, also comprises many-sided contents such as operation, device, capacity, conveying equipment, transit route, management and running.
In the modern steel production procedure, the accepting of molten iron, transport, storage etc. is by " being subjected to iron flask+mixed iron blast " transition and the evolution to torpedo jar or hot-metal bottle (a jar on earth), embodied the progress (comprising indexs such as production efficiency, energy consumption, environmental protection) of technology.But deficiencies such as the torpedo jar still exists, and investment is big, contaminated environment, tank switching temperature losses of the process are big, and be not suitable for the molten iron preliminary treatment and operation such as skim.
" one jar on earth " molten iron transportation resources, be to be subjected to blast furnace iron flask and steel-making to convert iron flask to unite two into one, finish with same hot-metal bottle blast-melted accept, transportation, buffer storage, preliminary treatment, converter convert overall processes such as iron, container turnover and hot-metal insulating technology, cancelled torpedo jar or the mixed iron blast in the traditional mode of production, reduced molten iron secondary tank switching, saved the molten iron haulage time, reduced hot metal temperature drop, reduced the environment pollution that causes because of tank switching, being conducive to realize cleaner production, is the developing direction at iron steel interface.
Be several " one jar is on earth " pattern of moving at present below:
(1) " locomotive " pattern
The iron steel interface of most of " one jar is on earth " transportation is by the legacy system transformation, still based on locomotive, such as: Handan Iron and Steel Co, Sha Gang, Ling Gang, Anshan iron and steel plant etc.This mode relies on railway transportation, depends on the relative stability of blast furnace operating and converter, although cancelled mixed iron blast or torpedo jar, but shortcoming is obvious: 1) blast furnace still adopts traditional peninsula formula to arrange, total figure takes up an area of bigger, and need establish between proprietary locomotive repair and between cast iron etc., invest bigger; 2) distance via railway is far away, and hot-metal bottle still need be organized into groups transportation, and the stand-by period is longer, does not fundamentally solve to tap a blast furnace and the big shortcoming of molten iron transportation temperature drop.
(2) " straddle carrier+reinforced inter-bank car " pattern
In this pattern, the part that is subjected to the iron flask travel line of blast furnace places in the working range of reinforced inter-bank car covering, is delivered to reinforced striding by straddle carrier behind the Sheng iron under the ironmaking cast house.If establish the corresponding steelshop of two blast furnaces, then the molten iron supply line of blast furnace interconnects, and reinforced amphi-position between two blast furnaces.The shortcoming of this pattern: 1) stride perpendicular to reinforced because of the molten iron supply line, and reinforced amphi-position between blast furnace, so blast furnace quantity can not be above two; 2) reinforcedly stride other length of striding much larger than steelshop, once investment is bigger; 3) if converter capacity is less, required hot-metal bottle increases, then the reinforced crane serious interference of striding.4) blast furnace is positioned at the converter sidepiece, and the total distance of molten iron transportation (converting distance between the iron from blast furnace casting to converter) is still very long, and total figure floor space is still bigger.
(3) " hot-metal ladle and carriage+ladle carne+ferry bus " pattern
Behind the blast furnace casting, hot-metal ladle and carriage moves to transition and strides, and the crane of striding by transition is transported to the ferry-boat line with hot-metal bottle, and ferry bus moves to that steelshop is reinforced strides.The shortcoming of this pattern: 1) because every jar of hot-metal bottle all needs to transport in transition is striden, so need the crane of greater number, once investment is bigger; 2) to have bad luck number of times more for hot-metal bottle, and running cost is higher; 3) prolonged molten iron haulage time and slack tank time of return, temperature drop is bigger.
(4) " hot-metal ladle and carriage " pattern
Blast furnace is parallel to the reinforced layout of striding of converter, taps a blast furnace by the mode that is similar to the locomotive marshalling, after tapping a blast furnace, directly hot-metal bottle is transported to that steelshop is reinforced strides, and this pattern has reduced hot-metal bottle has bad luck, a limited investment, and running cost reduces.But, 1) and this pattern will feed in raw material and stride as the hot-metal bottle directorial area, become the weak link in the whole flow process; 2) the hot-metal bottle time of return is shorter, and iron steel interface is rigidity too, the buffer capacity deficiency.3) when blast furnace iron notch number 〉=3, reinforced span of striding can't enter 6 molten iron supply lines (6 supply line needs at least 50 meters distance), so the blast furnace heat size of the pattern of kind only limits to＜2500m
3
Summary of the invention
The object of the present invention is to provide a kind of operational defect that can effectively remedy existing molten iron means of transportation, optimize the technological process at iron steel interface, simplify the intermediate link at iron steel interface, shorten flow process, thereby reach smooth and easy, the total figure compactness of technology, reduce investment and running cost, be applicable to the close-coupled molten iron transportation system of newly-built integrated iron and steel works.
For achieving the above object, the concrete technical scheme of a kind of close-coupled molten iron of the present invention transportation system is:
A kind of close-coupled molten iron transportation system comprises: the blast furnace zone, be provided with blast furnace, and the tapping hole place of blast furnace is provided with the molten iron supply line; Steelshop is provided with converter and reinforced striding, and the molten iron supply line in the blast furnace zone extends into reinforced striding; Transition is striden, between blast furnace zone and steelshop, and the molten iron buffering when accident occurring for steelshop; Blast furnace zone, steelshop and transition are striden and are be arranged in parallel, and link to each other by the molten iron supply line, and the molten iron supply line is striden vertical setting with blast furnace zone, steelshop and transition.
Compare with traditional " one jar is on earth " technology, close-coupled molten iron of the present invention transportation system has following advantage:
(1) the present invention with material stream rationally and the time flow compactness and serve as theme, take all factors into consideration from economy and technology equal angles, the total figure that has overturned original iron steel interface arranges, realize the series connection of " iron-steel-roll " straight line, distance between the main body that furthered and the public auxilliary equipment, save total figure greatly and taken up an area of, reduced once investment;
(2) by vertically entering the reinforced molten iron supply line of striding of steelshop, hot-metal bottle is directly transported reinforced striding, and has bad luck without any centre, and only arrange the molten iron preliminary treatment between the converter, it is distance travelled to have reduced crane, and the transportation range of hot-metal bottle is the shortest, has reduced once investment and running cost.Simplified the molten iron means of transportation, greatly shortened transportation range, accelerated the turnaround speed of hot-metal bottle, improved the molten iron charging temperature, energy-saving effect is obvious; Improve serialization degree to 69.5%;
(3) stride the molten iron intercommunication that realizes between many blast furnaces and a plurality of converter smeltings zone by transition, the molten iron allotment is more flexible, and for cast iron provides a channels in series, is aided with standby tank body, and safe changeable interface safeguard is provided;
(4) shortened haul distance and handling number of times that tank body keeps in repair, and transportation range is the shortest, the molten steel jar can be transported into transhipment and step into capable cold repair, makes that the tank body maintenance is concentrated more and reasonable, reduced hot-metal bottle quantity, meets energy-saving and cost-reducing general orientation.
Description of drawings
Fig. 1 is the layout plan of close-coupled molten iron of the present invention transportation system;
Fig. 2 is the layout plan of another embodiment of close-coupled molten iron of the present invention transportation system.
The specific embodiment
In order better to understand purpose of the present invention, structure and function, below in conjunction with accompanying drawing, further detailed description is done by a kind of close-coupled molten iron of the present invention transportation system.
As shown in Figure 1, it shows the layout plan of close-coupled molten iron of the present invention transportation system.In the present embodiment, close-coupled molten iron transportation system comprises blast furnace zone 100, steelshop 200, and the transition between blast furnace zone 100 and steelshop 200 strides 300, blast furnace zone 100, steelshop 200 and transition are striden 300 and are be arranged in parallel, and link to each other by molten iron supply line 5, and molten iron supply line 5 is striden 300 vertical with blast furnace zone 100, steelshop 200 and transition respectively.It should be noted that present embodiment is the corresponding steelshops of two blast furnaces in the blast furnace zone.
Wherein, be provided with blast furnace 1 and ancillary facility thereof in the blast furnace zone 100, as shown in Figure 1, be provided with two blast furnaces 1 in the blast furnace zone 100 of present embodiment, each blast furnace 1 is provided with two tapping hole (not shown), and two tapping holes all are positioned at the same side of blast furnace 1, and each tapping hole place respectively correspondence be provided with an oscillating chute 2, oscillating chute 2 places arrange hot-metal bottle 4, to accept the molten iron in the blast furnace 1.In addition, the both sides of oscillating chute 2 are provided with molten iron supply line 5, molten iron supply line 5 extends into steelshop 200 and transition strides 300, and the hot-metal ladle and carriage 3 that transports hot-metal bottle 4 is seated on the molten iron supply line 5, is used for the molten iron of blast furnace 1 is transported to steelshop 200.
Referring to Fig. 1, be provided with converter 7 in the steelshop 200 and stride 11 with reinforced, the molten iron supply line 5 in the blast furnace zone 100 vertically enters reinforced striding in 11, and directly transporting feeds in raw material strides 11 for the molten iron of hot-metal bottle 4 is had bad luck without any centre.It should be noted, in the present embodiment reinforced stride 11 length preferably with the equal in length of steelshop 200, to make things convenient for transportation and other associative operation of hot-metal bottle 4 in steelshop 200.The molten iron supply line vertically enters reinforced striding in the present embodiment, has made things convenient between blast furnace zone 100 and steelshop 200 transition to be set and to stride 300, reduced that total figure takes up an area of and reinforced striding in the handling distance of hot-metal bottle.
Further, be provided with molten iron preprocessing station 6 in the steelshop 200, molten iron preprocessing station 6 is in converter 7 and extend between the reinforced molten iron supply line 5 of striding in 11, and the molten iron that is used for molten iron supply line 5 is transported carries out preliminary treatment.In addition, also can be provided with heavy jar of position 8 of molten iron and the sticking iron clearing zone 12 of dry slag in the steelshop 200, wherein, have bad luck or accident buffering 8 centres that are mainly used in half jar of molten iron, heavy jar of position of molten iron; The sticking iron clearing zone 12 of dry slag then is used for the sticking iron dry slag on the hot-metal bottle 4 is handled.
Still referring to Fig. 1, transition between blast furnace zone 100 and steelshop 200 is striden and is provided with pig machine 9 and heavy jar of position 8 of molten iron in 300, and pig machine 9 and heavy jar of position 8 of molten iron that transition is striden in 300 mainly are the effects of playing the molten iron buffering when accident appears in steelshop 200.In addition, transition is striden in 300 also can be provided with tank body maintenance area 13, in order to stride in 300 in transition the empty hot-metal bottle 4 that returns blast furnace 1 is concentrated repairing, and the molten iron supply line 5 that is positioned at steelshop 200 in the present embodiment may extend to converter 7 places, keeps in repair in order to the molten steel jar (not shown) at converter 7 places also is transported to the tank body maintenance area 13 that transition strides in 300 by molten iron supply line 5.Certainly, it should be understood that the sticking iron clearing zone 12 of the dry slag that is arranged in the steelshop 200 also can be arranged on transition and stride in 300, in order to hot-metal bottle 4 is focused on.
Below with reference to Fig. 1, the operating procedure of the close-coupled molten iron transportation system of present embodiment is briefly explained:
When steelshop 200 ordinary production.At first, the tapping hole of the blast furnace 1 of molten iron from blast furnace zone 100 outputs in the hot-metal bottle 4 of oscillating chute 2, and the hot-metal bottle 4 of filling molten iron directly is transported to the reinforced of steelshop 200 by molten iron supply line 5 and strides in 11, and have bad luck without any the centre;
Secondly, the reinforced hot-metal bottle 4 of striding in 11 that is transported to steelshop 200 carries out preliminary treatment by the handling of crane (not shown) to molten iron preprocessing station 6, molten iron is after 6 preliminary treatment of molten iron preprocessing station, be blended in the converter 7 by crane, if and molten iron does not need preliminary treatment, then can directly be blended in the converter 7 by crane;
At last, carry out the sticking iron cleaning of dry slag in the sticking iron clearing zone 12 of the empty dry slag of hot-metal bottle 4 in steelshop 200, the hot-metal bottle 4 that cleans out by the crane handling to molten iron supply line 5, and return the tapping hole position of the blast furnace 1 in the blast furnace zone 100 with hot-metal ladle and carriage 3, aligning the back wait taps a blast furnace next time, and if need to keep in repair hot-metal bottle 4, then can return in the way in 300 tank body maintenance area 13 is striden in transition at hot-metal bottle 4 hot-metal bottle 4 is carried out centralized maintenance.
And production accident appears in steelshop 200, in the time of temporarily can not handling molten iron, can the transition that molten iron is delivered between blast furnace zone 100 and steelshop 200 be striden in 300 by molten iron supply line 5, and stride pig machine 9 in 300 by transition and carry out that molten iron is handled or temporarily cushion at 8 places, heavy jar of position of molten iron, the transportation that hot-metal bottle 4 is striden in 300 in transition can realize by crane 10.
It should be noted, each blast furnace 1 place is provided with 3 molten iron supply lines in the present embodiment, two tapping holes that also are blast furnace 1 tap a blast furnace in the hot-metal bottle 4 on 3 molten iron supply lines 5 respectively, as can be known from Fig. 1, article 3, molten iron supply line 5 be arranged in parallel, molten iron supply line 5 difference of both sides are the tapping hole of a corresponding blast furnace separately, and middle molten iron supply line 5 then is that two tapping holes share.In the present embodiment, every the molten iron supply line is provided with two hot-metal ladle and carriages 3, be placed with a hot-metal bottle 4 on every hot-metal ladle and carriage 3, each tapping hole of blast furnace 1 can tap a blast furnace 12 times every day, tap a blast furnace four jars at every turn, share the mode of tapping a blast furnace of molten iron supply line by adopting above-mentioned tapping hole, can effectively reduce the molten iron supply line quantity that enters steelshop, reduce floor space, be conducive to realize that the molten iron supply line vertically enters reinforced striding.
Certainly, the quantity of the tapping hole of the blast furnace 1 in the present embodiment is not limited to two, and corresponding to different tapping hole quantity, near the quantity of the molten iron supply line 5 that arranges the blast furnace 1 in the present embodiment also can arrange flexibly, and is specific as follows:
(1) blast furnace iron notch quantity is 1, joins 2 molten iron supply lines;
(2) blast furnace iron notch quantity is 2, joins 3 molten iron supply lines;
(3) blast furnace iron notch quantity is joined 3 molten iron supply lines and ferry-boat line greater than 2.
The ferry-boat line can be arranged on the next door of molten iron supply line, so that the hot-metal bottle handling that can not directly transport by the molten iron supply line is to the line of ferrying, and being transported to steelshop by the ferry-boat line, the form that specifically arranges of ferry-boat line can be referring to the pattern of ferry-boat line commonly used in the prior art.
In addition, the hot-metal ladle and carriage 3 in the present embodiment is every and drives separately that type of drive can be diesel engine unit and drives, and also weighing system can be set on the hot-metal ladle and carriage 3, with the weight of every jar of molten iron of strictness control.Thus, close-coupled molten iron of the present invention transportation system can be by the strict control of the weighing system on the hot-metal ladle and carriage 3 amount of tapping a blast furnace when tapping a blast furnace, and makes precision control in ± 1t, for steel-making provides stable molten iron.
Close-coupled molten iron of the present invention transportation system has saved total figure takes up an area of, has shortened transportation range, has improved the turnover frequency of hot-metal bottle, has reduced molten iron and has had bad luck number of times, has improved the molten iron charging temperature, and energy-saving effect is obvious; And reduced once investment and running cost, and safe interface safeguard is provided, reduced the tank body maintenance cost.
Fig. 2 shows the layout plan of another embodiment of close-coupled molten iron of the present invention transportation system.In the present embodiment, corresponding two steelshops of two blast furnaces in the blast furnace zone.Specifically, close-coupled molten iron transportation system in the present embodiment also comprises blast furnace zone 100, steelshop 200, and the transition between blast furnace zone 100 and steelshop 200 strides 300, blast furnace zone 100, steelshop 200 and transition are striden 300 and are be arranged in parallel, and continuous by molten iron supply line 5, and molten iron supply line 5 is striden 300 vertical settings with blast furnace zone 100, steelshop 200 and transition respectively.
As shown in Figure 2, two steelshops 200 are set up in parallel in the present embodiment, and two blast furnaces 1 in the blast furnace zone 100 are corresponding one by one with two steelshops 200 respectively.Specifically, be provided with two tapping hole (not shown) on each blast furnace 1 in the blast furnace zone 100, two tapping holes are positioned at the same side of blast furnace 1, and each tapping hole place correspondence respectively is provided with an oscillating chute 2, oscillating chute 2 places arrange hot-metal bottle 4, to accept the molten iron in the blast furnace 1.The both sides of oscillating chute 2 are provided with molten iron supply line 5, molten iron supply line 5 extend into transition stride 300 with the steelshop 200 corresponding with this blast furnace 1, the hot-metal ladle and carriage 3 that transports hot-metal bottle 4 is seated on the molten iron supply line 5, is used for the molten iron of blast furnace 1 is transported to corresponding steelshop 200.
Steelshop 200 and the transition of present embodiment striden among arrangement form and first embodiment in 300 similar.All include converter 7 in two steelshops 200 and reinforcedly stride 11 with identical with steelshop 200 length, molten iron supply line 5 vertically enters the reinforced of steelshop 200 and strides in 11, in converter 7 and extend between the reinforced molten iron supply line 5 of striding in 11 and be provided with molten iron preprocessing station 6, according to actual conditions, also can be provided with heavy jar of position 8 of molten iron and the sticking iron clearing zone 12 of dry slag in the steelshop 200.
And the transition of present embodiment is striden and also is provided with the heavy jar position 8 of molten iron in 300 accordingly, pig machine 9 and tank body maintenance area 13, but with different among first embodiment be, in the present embodiment, owing to be that a plurality of blast furnaces 1 are for a plurality of steelshops 200, and the every pair of blast furnace 1 strides 300 with molten iron supply line 5 between the steelshop 200 is all vertical through same transition, so the every pair of blast furnace 1 in the present embodiment is striden 300 with steelshop 200 by transition and can be realized being interconnected, also be, molten iron in the different blast furnaces 1 is striden 300 by transition and can be transported to each steelshop 200, thereby realized that a plurality of blast furnaces and a plurality of steelshop are connected as a single entity, for the unbalanced bigger buffering that provides is provided at iron steel interface, it should be noted that the transhipment that hot-metal bottle 4 is striden in 300 in transition can realize by crane 10.
Certainly, though only show the situation of corresponding two steelshops of two blast furnaces in the present embodiment, but be not limited to this, because between a plurality of blast furnaces and a plurality of steelshop same transition being set strides, so the blast furnace among the present invention can be set according to actual conditions flexibly with the concrete corresponding situation of steelshop, as corresponding three steelshops of three blast furnaces, four corresponding three steelshops of blast furnace etc.
Close-coupled molten iron of the present invention transportation system provides a kind of molten iron safeguard when producing imbalance, stride by transition, many blast furnaces and a plurality of steelshop are connected as a single entity, when a steelshop does not need molten iron because of the converter maintenance or because of accident, utilize the crane of transition in striding with the molten iron handling to the another one steelshop, perhaps carry out cast iron to solve unnecessary molten iron by slack tank and pig machine, in striding, transition arranges heavy jar of position and roaster etc., and can share pig machine and hot-metal bottle etc. in this system, concentrate the tank body maintenance, reduced the quantity of pig machine and hot-metal bottle.And the molten iron supply line among the present invention vertically enters reinforced striding, and solved horizontal transportation and can't laterally enter reinforced problem of striding because supply line is many.
More than by specific embodiment the present invention is further described; but it should be understood that; here concrete description; should not be construed as the restriction to the spirit and scope of the invention; the various modifications that the one of ordinary skilled in the art makes above-described embodiment after reading this manual all belong to the scope that the present invention protects.
Claims (10)
1. a close-coupled molten iron transportation system is characterized in that, comprising:
Blast furnace zone (100) is provided with blast furnace (1), and the tapping hole place of blast furnace (1) is provided with molten iron supply line (5);
Steelshop (200) is provided with converter (7) and reinforced stride (11), and the molten iron supply line (5) in blast furnace zone (100) extends into reinforced stride (11);
(300) are striden in transition, are positioned between blast furnace zone (100) and the steelshop (200), are used for the molten iron buffering of steelshop (200) when accident occurring;
Blast furnace zone (100), steelshop (200) and transition are striden (300) and are be arranged in parallel, and link to each other by molten iron supply line (5), and molten iron supply line (5) is striden (300) vertical setting with blast furnace zone (100), steelshop (200) with transition.
2. close-coupled molten iron according to claim 1 transportation system, it is characterized in that, be provided with a plurality of blast furnaces (1) in the blast furnace zone (100), a plurality of blast furnaces (1) are connected with a plurality of steelshops (200) by molten iron supply line (5), transition is striden and is provided with the molten iron transporter in (300), and the molten iron transporter that the molten iron in the blast furnace (1) can be striden by transition in (300) is delivered to arbitrary steelshop (200).
3. close-coupled molten iron according to claim 1 and 2 transportation system is characterized in that, pig machine (9) and heavy jar of the molten iron (8) that is provided with in (300) for the molten iron buffering striden in transition.
4. close-coupled molten iron according to claim 1 transportation system is characterized in that, the reinforced length of (11) and the equal in length of steelshop (200) of striding, and molten iron supply line (5) vertically enters to feed in raw material and strides in (11).
5. close-coupled molten iron according to claim 4 transportation system, it is characterized in that, be provided with molten iron preprocessing station (6) in the steelshop (200), molten iron preprocessing station (6) is arranged in converter (7) and enters reinforced striding between the molten iron supply line (5) of (11) with vertical.
6. close-coupled molten iron according to claim 5 transportation system is characterized in that, is provided with the heavy jar of position (8) of molten iron for the molten iron buffering in the steelshop (200).
7. close-coupled molten iron according to claim 1 transportation system, it is characterized in that, the tapping hole place of blast furnace (1) is provided with oscillating chute (2), oscillating chute (2) locates to arrange hot-metal bottle (4), the both sides of oscillating chute (2) are provided with molten iron supply line (5), and the hot-metal ladle and carriage (3) that transports hot-metal bottle (4) is seated on the molten iron supply line (5).
8. close-coupled molten iron according to claim 7 transportation system is characterized in that, the tank body maintenance area (13) that is provided with in (300) for to hot-metal bottle (4) maintenance is striden in transition.
9. close-coupled molten iron according to claim 8 transportation system, it is characterized in that, molten iron supply line (5) in the steelshop (200) extends and is set to converter (7) and locates, and is used for molten steel jar that converter (7) is located and is transported to transition by molten iron supply line (5) and strides the tank body maintenance area (13) of (300) and locate to keep in repair.
10. close-coupled molten iron according to claim 9 transportation system is characterized in that, the sticking iron clearing zone (12) of the dry slag that is provided with cleaning hot-metal bottle (4) in (300) is striden in steelshop (200) or transition.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105238891A (en) * | 2015-10-20 | 2016-01-13 | 北京首钢国际工程技术有限公司 | Direct connection type process for iron making and steel making interface |
| CN112059163A (en) * | 2020-09-19 | 2020-12-11 | 北京首钢国际工程技术有限公司 | Molten iron transportation system of iron-making-steel interface |
| CN114934141A (en) * | 2022-05-09 | 2022-08-23 | 北京首钢国际工程技术有限公司 | Smelting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105170965B (en) * | 2015-11-02 | 2017-05-24 | 中冶东方工程技术有限公司 | Molten iron transport system |
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| CN101249558A (en) * | 2008-03-28 | 2008-08-27 | 重庆钢铁(集团)有限责任公司 | One tank to end technique for iron-smelting to steel-smelting |
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| CN101249558A (en) * | 2008-03-28 | 2008-08-27 | 重庆钢铁(集团)有限责任公司 | One tank to end technique for iron-smelting to steel-smelting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105238891A (en) * | 2015-10-20 | 2016-01-13 | 北京首钢国际工程技术有限公司 | Direct connection type process for iron making and steel making interface |
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| CN114934141A (en) * | 2022-05-09 | 2022-08-23 | 北京首钢国际工程技术有限公司 | Smelting system |
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| CN103343632B (en) | 2015-09-23 |
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