CN203546061U - Device for recovering iron from slag produced in HIsmelt smelting reduction process - Google Patents
Device for recovering iron from slag produced in HIsmelt smelting reduction process Download PDFInfo
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- CN203546061U CN203546061U CN201320498061.6U CN201320498061U CN203546061U CN 203546061 U CN203546061 U CN 203546061U CN 201320498061 U CN201320498061 U CN 201320498061U CN 203546061 U CN203546061 U CN 203546061U
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- slag
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- ladle
- hismelt
- smelting reduction
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Abstract
The utility model provides a device for recovering iron from slag produced in a HIsmelt smelting reduction process. The device comprises slag ladles, a slag ladle transport vehicle, a slag ladle overturning device, a special purpose crane, a slag treating unit and a molten iron tank. The device can effectively recover a large amount of cast iron carried in slag produced in a HIsmelt smelting reduction technology, can increase the iron and slag ratio in the HIsmelt process, and recovers a large quantity of wasted cast iron resources. Meanwhile, the procedure cost of the HIsmelt process is reduced greatly, and the competitiveness of the HIsmelt smelting reduction technology developing in the field of iron smelting is raised.
Description
Technical field
The utility model relates to the retrieving arrangement of iron in a kind of metallurgical cinder, and particularly the retrieving arrangement of iron in a kind of HIsmelt smelting reduction process slag, belongs to non-blast furnace ironmaking technical field.
Background technology
HIsmelt smelting reduction process is the iron-smelting process that uses fine ore (or other iron content powder) and coal dust direct production molten iron.This technique is that in the molten iron melt pool that former, fuel are jetted in fusion reducing furnace together with flux, in stove, along with the dissolving of carbon content in coal element, ferric oxide is reduced in molten bath, and the oxygen reaction in carbon element and iron-containing charge generates carbon monoxide; Meanwhile, fugitive constituent cracking and discharge hydrogen and also participate in reduction reaction in coal; And ash content in gangue, coal in ferric charge and flux merge and form slag.It is to carry out in vertical fusion reducing furnace that this technique responds, molten bath liner is refractory materials, in stove, be provided with water wall, crude fuel is done carrier gas with nitrogen and is directly sprayed in reduction furnace by being arranged on water cooled lance on furnace wall sidewall, the carbon monoxide that reaction produces, hydrogen and spraying from molten bath as the nitrogen of carrier gas, form in one " spring ", the melt substance that comprises a large amount of slags is sprayed onto to upper space, up to the hot blasts of 1200 ℃, from stove top, by heater blower gun, be blown into, oxygen in hot blast and carbon monoxide and hydrogen effectively carry out secondary combustion, produce a large amount of heats, these heat major parts are imported in the slag and molten iron in molten bath, continue to maintain and in molten bath, react required energy.
Be different from traditional blast furnace, in HIsmelt fusion reducing furnace, design preposition go out iron furnace, continue to tap a blast furnace, in SRV stove transition zone (Ye Chengzha district), design special slag notch.But because crude fuel reacts gushing of causing in iron bath, make molten bath in zone of transition in ceaselessly disturbance, affected the abundant separation of slag iron, therefore in the process of slagging tap, having a large amount of molten iron is mixed in slag, according to former Australian KWWINANA, produce the production data of field, the iron-holder in slag reaches 10%.Suppose that, according to producing 800000 tons of iron per year, ton scum amount is that 350kg calculates, and will produce every year 280000 tons of slags, wherein can contain the iron of 2.8 ten thousand tons.And in former HIsmelt technological design, to the processing mode of slag, be to put dry slag, so will cause a large amount of pig iron to solidify with slag, can not efficient recovery, cause the waste of a large amount of pig iron resources.
Summary of the invention
The purpose of this utility model, is to provide a kind of HIsmelt smelting reduction process and produces the retrieving arrangement of iron in slag.The soluble problem of this device is:
1, can reclaim HIsmelt smelting reduction technology and produce a large amount of pig iron that carry in slag;
2, the process cost that reclaims the pig iron reduction HIsmelt Technology in slag is HIsmelt smelting reduction technology Promote Competitive in ironmaking field.
The technical solution of the utility model is as follows: the retrieving arrangement of iron in a kind of HIsmelt fusion reducing furnace slag is provided, and this device comprises: slag ladle, slag basin transport vehicle, slag pot tipping device, special purpose crane, slag treatment unit, iron ladle.
Slag ladle is accepted the slag that fusion reducing furnace produces, the slag ladle that slag is accepted in preparation is placed on slag basin transport vehicle, after slag ladle is filled slag, through slag basin transport vehicle, be transported to the station of tumbling of slag ladle, the station of tumbling at slag ladle is unloaded by slag pot tipping device the slag ladle that fills with slag, and on slag pot tipping device parked 20 ~ 40 minutes.
Filling with between slag ladle lag phase of slag, utilize special purpose crane, by empty slag ladle from the position handling of empty slag ladle to slag basin transport vehicle, slag basin transport vehicle is transported to empty slag ladle to be subject to slag station to connect slag next time.
After in filling with slag slag ladle, slag iron fully separates, utilize slag pot tipping device evenly to pour slag in slag ladle into slag treatment unit, treat slag evacuation in slag ladle, slag ladle mouth is shown in after iron, slag pot tipping device stops action, and slag ladle is positioned over to level attitude.Recycling special purpose crane is poured the molten iron precipitating in slag ladle in iron ladle into.Molten iron in iron ladle mixes as the raw material of steel-making or casts ingot iron with the molten iron normally tapping a blast furnace, so reach the object that reclaims the pig iron in slag
Further, for the calorific loss of slag during reducing slag ladle and parking with prevent the erosion breakage of slag to slag ladle liner, advise that described slag ladle liner adopts that the iron of resistance to slag corrodes, refractory castable one-piece casting that thermal conductivity is low.
Further, when described slag ladle is subject to slag station and tumbles station not on same straight line time, cancel described slag basin transport vehicle, directly utilize described lifting machine to complete the transportation of described slag ladle, the fully-factored load when weight-lifting ability of described lifting machine should consider to fill slag in described slag ladle in this situation.
The beneficial effect that the utility model produces is: can reclaim the molten iron entering in a large number in slag, improve the output of the pig iron, reduce ton iron process energy consumption, for HIsmelt smelting reduction process has promoted competitive power in non-high ironmaking field simultaneously.According to producing 800000 tons of iron per year, ton scum amount is that 350kg calculates, and will produce every year 280000 tons of slags, wherein can contain the iron of 2.8 ten thousand tons, when the rate of recovery is 80%, can reclaim 2.24 ten thousand tons/year of iron, so a large amount of pig iron will bring considerable economic benefit to enterprise.
Accompanying drawing explanation
4 pages of the utility model drawings attacheds, totally 4 width.
Fig. 1: the utility model embodiment 1 floor plan schematic diagram.
Fig. 2: the utility model embodiment 1 facade is arranged schematic diagram.
Fig. 3: the utility model embodiment 2 floor plan schematic diagram.
Fig. 4: the utility model embodiment 2 facades are arranged schematic diagram.
In figure: 1-slag ditch; 2-slag ladle; 2 '-slag ladle; 3-special purpose crane; 4-slag basin transport vehicle; 5-slag pot tipping device; 6-slag ditch 2; 7-slag treatment facility; 8-hot-metal ladle transport vehicle; 9-iron ladle.
Embodiment
Embodiment 1: as shown in Figure 1, the utility model is to adopt a kind of off-line slag iron tripping device, idiographic flow is described below: the slag that is mixed with molten iron flows into and is placed in the slag ladle 2 that is subject to slag station through slag ditch 1, while finishing wait slagging tap, start slag basin transport vehicle 4, the slag ladle 2 that fills with slag is transported to slag pot tipping station, utilize slag pot tipping device 5 that slag ladle 2 is unloaded from slag basin transport vehicle 4, stagnate simultaneously and on slag pot tipping device 5, make slag iron fully separate, approximately 20 ~ 40 minutes dead time (can according to production practical adjustments), now utilize special purpose crane 3 by empty slag ladle 2
'handling, to slag basin transport vehicle 4, utilizes slag basin transport vehicle 4 by empty slag ladle 2
,transport to and be subject to the wait of slag station to connect slag next time.After the slag in the slag ladle 2 on being placed in slag pot tipping device is fully precipitated, utilizing slag pot tipping device that the slag in slag ladle 2 is poured into slag ditch 6 slowly enters in slag treatment system and processes, when iron is shown in by 2 mouthfuls of slag ladles, slag pot tipping device 5 stops tumbling, the molten iron that utilizes special purpose crane 3 that slag ladle 2 is sling, precipitated in tank is poured in iron ladle 9, iron hose car 8 is transported to iron ladle 9 to connect ironworker position and continue to connect iron, the slag ladle 2 of having toppled over molten iron is placed into specified location through lifting machine 3, waits for circulation next time.
For the calorific loss of slag during reducing slag ladle 2 and parking with prevent the erosion breakage of slag to resistance to material in slag ladle, the liner of suggestion slag ladle 2 adopts the refractory castable one-piece casting that the iron of resistance to slag corrodes, thermal conductivity is low.
All the other are with embodiment 1.
Claims (3)
1. the retrieving arrangement of iron in a HIsmelt smelting reduction process slag, it is characterized in that: this device comprises: slag ladle, slag basin transport vehicle, slag pot tipping device, special purpose crane, slag treatment unit, iron ladle, slag ladle is accepted the slag flowing out through fusion reducing furnace slag runner, by slag basin transport vehicle, be transported to slag pot tipping station, at slag pot tipping station, slag pot tipping device unloads slag ladle, on slag pot tipping device after parked 20～40 minutes, evenly pour slag in slag ladle into described slag treatment unit, reclaim the molten iron that is deposited in slag ladle bottom.
2. the retrieving arrangement of iron in HIsmelt smelting reduction process slag as claimed in claim 1, is characterized in that: the liner of described slag ladle adopts the refractory castable one-piece casting that the iron of resistance to slag corrodes, thermal conductivity is low.
3. the retrieving arrangement of iron in HIsmelt smelting reduction process slag as claimed in claim 1, it is characterized in that: when described slag ladle be subject to slag station with described in tumble station not on same straight line time, adopt lifting machine that described slag ladle is transported to described slag pot tipping station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320498061.6U CN203546061U (en) | 2013-08-15 | 2013-08-15 | Device for recovering iron from slag produced in HIsmelt smelting reduction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320498061.6U CN203546061U (en) | 2013-08-15 | 2013-08-15 | Device for recovering iron from slag produced in HIsmelt smelting reduction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203546061U true CN203546061U (en) | 2014-04-16 |
Family
ID=50464206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320498061.6U Expired - Lifetime CN203546061U (en) | 2013-08-15 | 2013-08-15 | Device for recovering iron from slag produced in HIsmelt smelting reduction process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203546061U (en) |
-
2013
- 2013-08-15 CN CN201320498061.6U patent/CN203546061U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |