CN108611460A - A kind of method that scrap steel preheating method, semisteel smelting increase hot metal output - Google Patents
A kind of method that scrap steel preheating method, semisteel smelting increase hot metal output Download PDFInfo
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- CN108611460A CN108611460A CN201810577348.5A CN201810577348A CN108611460A CN 108611460 A CN108611460 A CN 108611460A CN 201810577348 A CN201810577348 A CN 201810577348A CN 108611460 A CN108611460 A CN 108611460A
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- scrap
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C2200/00—Recycling of waste material
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- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The present invention provides a kind of scrap steel preheating method, semisteel smelting increases the method for hot metal output, is related to smelting steel scrap technical field, including：Mixing vanadium-titanium-iron-water, which enters, is directly blended into converter extracting vanadium vanadium extraction after steel mill, after iron making, the steel scrap is added into empty hot-metal bottle, heated by gas station of the hot-metal bottle on its transit route is preheated, the last hot-metal bottle returns to blast furnace and receives high temperature vanadium-titanium-iron-water and melt steel scrap to obtain mixing vanadium-titanium-iron-water, mixing vanadium-titanium-iron-water is transported to steel mill converter extracting vanadium iron making again, is so recycled.By the way that steel scrap is added into hot-metal bottle, using hot-metal bottle waste heat and hot-metal bottle transportational process gas toast station by scrap steel preheating, the hot-metal bottle equipped with preheating scrap is then transported into reception high temperature vanadium-titanium-iron-water under blast furnace, to achieve the purpose that increase molten iron production capacity.
Description
Technical field
The present invention relates to steel scrap technical field is smelted, increase in particular to a kind of scrap steel preheating method, semisteel smelting
The method of hot metal output.
Background technology
It climbs steel to be smelted using vanadium titano-magnetite, pneumatic steelmaking main material is using half after special vanadium extraction by converter blowing
Steel, carbon mass percentage is 3.4% ￣ 3.8%, half steel temperature fluctuation in the half steel that vanadium-bearing hot metal obtains after desulfurization vanadium extraction
It is average less than 1300 DEG C between 1250-1320 DEG C, and silicon, manganese fever slagging constituent content are trace in half steel, therefore
Semisteel smelting heat source wretched insufficiency, little by converter increase steel scrap consumption heat space, it is limited that steel scrap consumes incrementss.
Smelt iron production capacity limited production, steel scrap is on the low side and steel market it is preferable in the case of, increase steel scrap consumption from Iron-smelting, in turn
It is to increase production the preferred approach of extra earning to increase molten iron production capacity in the case where not increasing blast furnace.
In existing technology, it has been improved the patent literature for improving the consumption of converter steel scrap.Such as application number：
A kind of 201710597259.2 methods for heating steel scrap and improving smelting scrap ratio, this approach includes the following steps：Step 1, lead to
It crosses charge door and steel scrap is added into heating furnace body；Step 2, feeder by one of heat-accumulating burner to heating furnace body
It is interior to spray the mixed gas mixed according to a certain percentage by air and combustion gas, mixed gas is lighted, while fume extractor is logical
Another heat-accumulating burner is crossed to draw the intrinsic exhaust gas of heating furnace and discharge it heating furnace body；Step 3, when heating one section
Between after, pass through adjustable change valve, convert two heat-accumulating burners function；Step 4, above-mentioned steps are executed repeatedly 3N times, until will
Scrap heating stops heating to preset temperature.The heating means of the present invention are come using being preheated to steel scrap in scrap heating stove
Improve steel scrap the initial temperature into converter, accelerate converter heating speed, improve converter smelting efficiency and smelting in give up
Steel in the feed where ratio, reduce smelting cost.Application number：201710727285.2 promoting converter using gasification dephosphorized slag
The smelting process of scrap melting, specific method are：Carbon containing dose of dosage is 50~100kg/t when splashing slag in converter gasification dephosphorization
Slag, grate is blended into steel scrap 10t~25t after splashing slag, rocks back and forth converter for several times so that then steel scrap and clinker elementary mixing are shaken
Oxygen gun blowing drops in positive furnace body, and oxygen blow duration is 1~2 minute, and control oxygen lance position is blown firmly in 0.5~0.7m, is made in oxygen and slag
Carbon containing dose of fast reaction heat release rises oxygen rifle to normal position after the raising of steel scrap temperature, and grate is simultaneously blended into molten iron, carries out normal
Advise converter smelting；It smelts rear converter scrap ratio and reaches 15%~19%, carbon containing dose of utilization rate is more than or equal to 80%.The present invention plays
The exothermic heat of reaction effect of excess carbon, accelerates the Flashmelt to steel scrap after molten iron in gasification dephosphorized slag.Improve converter steel scrap
Than；It reduces vessel slag to discharge to outside stove, clinker iron loss is reduced, and recovery rate of iron improves.Application number：201710876831.9 a kind of
The smelting process of steel scrap stove external heat reuse.The invention discloses a kind of smelting processes of steel scrap stove external heat reuse, including 1.
First solid steel scrap is loaded into iron packet, then coal gas is passed through into the Ladle-casting apparatus being arranged outside iron packet, using coal gas in iron packet
Solid steel scrap preheated, temperature >=900 DEG C of solid scrap steel preheating, time of preheating is 70~100min；2. being to utilize
Transfer tool transports the iron packet equipped with solid steel scrap after preheating out of Ladle-casting apparatus, then utilizes overhead traveling crane by the height in ladle
Warm vanadium-titanium-iron-water is blended into the iron packet equipped with solid steel scrap, and the solid steel scrap in iron packet is made all to melt, finally will be in iron packet
Molten iron after all melting, which pours into converter, to be smelted.
Application number：A kind of devices and user using converter slag waste heat preheating scrap and alloy of 201610729634.X
Method, discloses a kind of device and application method using converter slag waste heat preheating scrap and alloy, device mainly by steel scrap with
Alloy is added the room rooms 1# and the rooms high temperature furnace slag storage chamber 2# and constitutes.Heat-preserving cover plate is stamped at the top of the rooms 1#, lower part is pair of lamina knot
Driving hydraulic pressure lift chain is dug in the top of baking vessel's bottom plate of structure, bottom plate top margin equipped with bottom plate, and two side is equipped with and is pressed from both sides at α with bottom plate
Guide rail is dug at angle, and rear wall, which is equipped with, releases door.Slag ladle trolley track is equipped in the rooms 2#, top is the bottom plate of the rooms 1#.It used
Steel scrap or alloy are put on bottom plate, cover heat-preserving cover plate, later lead to high temperature slag ladle by Cheng Zhong, the top blind flange for opening the rooms 1#
It crosses slag ladle trolley and is transported to the rooms 2#, complete the Baking out to steel scrap or alloy.By the use of the device, converter height can be made
Warm afterheat of slags is recycled utilization, while playing the role of improving converter scrap ratio, reaches cost efficiency.But the prior art
In method there is semisteel smelting heat source insufficiency, the problem of molten steel low output.
Invention content
One of the objects of the present invention is to provide a kind of scrap steel preheating methods, so that the preheating of half cylinder of steel and ladle baking position
It sets and is fully used.
The second object of the present invention is to provide a kind of method of semisteel smelting increase hot metal output, so that one and half
Increase hot metal output in steel smelting technological process cycle.
In order to realize that the above-mentioned purpose of the present invention, spy use following technical scheme：
A kind of scrap steel preheating method, including：Steel scrap, coal of the hot-metal bottle on its transit route is added into empty hot-metal bottle
Gas heating station is preheated obtained preheating scrap.
Further, the weight of steel scrap is the 1/100-10/100 of molten iron tankage size.
Further, the weight of steel scrap is the 2/100-8/100 of molten iron tankage size.Such as the weight of steel scrap is hot-metal bottle
Capacity could be provided as 2/100,3/100,4/100,5/100,6/100,7/100,8/100.
Further, a length of 0.5-2.5h when scrap steel preheating.
Further, a length of 0.5-2.0h when scrap steel preheating.Such as scrap steel preheating duration could be provided as 0.5h, 1.0h,
1.5h、2.0h。
Further, steel scrap monolithic weight is 50-100kg.Such as steel scrap monolithic weight could be provided as 50kg, 60kg,
70kg、80kg、90kg、100kg。
A kind of method that semisteel smelting increases hot metal output, including：High temperature liquid iron is by the scrap steel preheating side of any of the above-described
Mixing vanadium-titanium-iron-water is made in preheating scrap melting made from method, and mixing vanadium-titanium-iron-water is pre-processed again after converter extracting vanadium vanadium extraction
Desulfurization, the half steel after desulfurization are blended into steelmaking converter steel-making again.
Further, high temperature vanadium-titanium-iron-water is provided by blast furnace.
Further, mixing vanadium-titanium-iron-water carries out pretreatment desulfurizing again after converter extracting vanadium vanadium extraction, and the half steel after desulfurization is again
It is blended into steelmaking converter steel-making.
Further, high temperature vanadium-titanium-iron-water temperature is 1400-1500 DEG C.Such as high temperature vanadium-titanium-iron-water temperature can be arranged
It is 1400 DEG C, 1420 DEG C, 1440 DEG C, 1460 DEG C, 1480 DEG C, 1500 DEG C.
The dosage of each component is the optimum feed stock ratio for participating in reacting in above-mentioned technical proposal, but those skilled in the art
Can introduction according to the present invention carry out equivalent variation.Such as：Because of Parameters variation caused by the error of industrial production itself
It is equal with technical scheme of the present invention, other auxiliary agents is compounded on the basis of inventive formulation also with technical scheme of the present invention etc.
Together.
Compared with the prior art, the present invention has the advantages that：
The method that a kind of semisteel smelting newly developed of the embodiment of the present invention increases hot metal output, this method is by hot-metal bottle
Then middle addition steel scrap will be equipped with preheating using hot-metal bottle waste heat and hot-metal bottle transportational process gas toast station by scrap steel preheating
The hot-metal bottle of steel scrap transports reception high temperature vanadium-titanium-iron-water under blast furnace, to achieve the purpose that increase molten iron production capacity.
Specific implementation mode
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
According to the first aspect of the invention, a kind of scrap steel preheating method is provided, including：It is added into empty hot-metal bottle
Steel scrap, heated by gas station of the hot-metal bottle on its transit route are preheated obtained preheating scrap.
Further, the weight of steel scrap is the 1/100-10/100 of molten iron tankage size.
Further, the weight of steel scrap is the 2/100-8/100 of molten iron tankage size.Such as some embodiments of the present invention
The weight of middle steel scrap is that molten iron tankage size could be provided as 2/100,3/100,4/100,5/100,6/100,7/100,8/100.
Further, a length of 0.5-2.5h when scrap steel preheating.
Further, a length of 0.5-2.0h when scrap steel preheating.Such as scrap steel preheating duration in some embodiments of the present invention
It could be provided as 0.5h, 1.0h, 1.5h, 2.0h.
Further, steel scrap monolithic weight is 50-100kg.Such as steel scrap monolithic weight in some embodiments of the present invention
It could be provided as 50kg, 60kg, 70kg, 80kg, 90kg, 100kg.
The present invention also provides a kind of methods that semisteel smelting increases hot metal output, including：High temperature liquid iron will be any of the above-described
Mixing vanadium-titanium-iron-water is made in preheating scrap melting made from the scrap steel preheating method of item, and mixing vanadium-titanium-iron-water is through converter extracting vanadium vanadium extraction
Carry out pretreatment desulfurizing again afterwards, the half steel after desulfurization is blended into steelmaking converter steel-making again.
Further, high temperature vanadium-titanium-iron-water is provided by blast furnace.
Further, mixing vanadium-titanium-iron-water carries out pretreatment desulfurizing again after converter extracting vanadium vanadium extraction, and the half steel after desulfurization is again
It is blended into steelmaking converter steel-making.
Further, high temperature vanadium-titanium-iron-water temperature is 1400-1500 DEG C.Such as some embodiments of the present invention high temperature
Vanadium-titanium-iron-water temperature could be provided as 1400 DEG C, 1420 DEG C, 1440 DEG C, 1460 DEG C, 1480 DEG C, 1500 DEG C.
Using this patent method, this method is transported by the way that steel scrap is added into hot-metal bottle using hot-metal bottle waste heat and hot-metal bottle
Defeated process gas toast station then the hot-metal bottle equipped with preheating scrap is transported into reception high temperature vanadium titanium under blast furnace by scrap steel preheating
Molten iron, to achieve the purpose that increase molten iron production capacity.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
Certain factory's molten iron tankage size is 240t.Mixing vanadium-titanium-iron-water, which enters, is directly blended into converter extracting vanadium vanadium extraction after steel mill, convert
After iron, steel scrap 4.8t is added into empty hot-metal bottle, monolithic steel scrap weight is 100kg, and the hot-metal bottle equipped with steel scrap is capped
The heated by gas station on hot-metal bottle transit route is to the scrap steel preheating 2h in hot-metal bottle afterwards, finally by the iron equipped with preheating scrap
The high temperature vanadium-titanium-iron-water that water pot returns to 1500 DEG C of blast furnace reception makes the scrap iron in hot-metal bottle melt, and mixing vanadium-titanium-iron-water is made,
Mixing vanadium-titanium-iron-water is transported to steel mill converter extracting vanadium iron making again.Iron making use will mix vanadium-titanium-iron-water and be transferred to converter extracting vanadium
Vanadium extraction obtains half steel, then by half steel pretreatment desulfurizing, and semisteel converter steelmaking technological process is made steel, and so recycles.By adopting
With this method, hot metal output about 4.79t can be increased per circulation primary.
Embodiment 2
Certain factory's molten iron tankage size is 240t.Mixing vanadium-titanium-iron-water, which enters, is directly blended into converter extracting vanadium vanadium extraction after steel mill, convert
After iron, steel scrap 7.2t is added into empty hot-metal bottle, monolithic steel scrap weight is 90kg, after the hot-metal bottle capping equipped with steel scrap
Heated by gas station on hot-metal bottle transit route is to the scrap steel preheating 1.7h in hot-metal bottle, finally by the iron equipped with preheating scrap
The high temperature vanadium-titanium-iron-water that water pot returns to 1480 DEG C of blast furnace reception makes the scrap iron in hot-metal bottle melt, and mixing vanadium-titanium-iron-water is made,
Mixing vanadium-titanium-iron-water is transported to steel mill converter extracting vanadium iron making again, being transferred to converter extracting vanadium vanadium extraction using mixing vanadium-titanium-iron-water obtains
To half steel, then by half steel pretreatment desulfurizing, semisteel converter steelmaking technological process is made steel, and is so recycled.By using the party
Method can increase hot metal output about 7.17t per circulation primary.
Embodiment 3
Certain factory's molten iron tankage size is 240t.Mixing vanadium-titanium-iron-water, which enters, is directly blended into converter extracting vanadium vanadium extraction after steel mill, convert
After iron, steel scrap 9.6t is added into empty hot-metal bottle, monolithic steel scrap weight is 80kg, after the hot-metal bottle capping equipped with steel scrap
Heated by gas station on hot-metal bottle transit route is to the scrap steel preheating 1.4h in hot-metal bottle, finally by the iron equipped with preheating scrap
The high temperature vanadium-titanium-iron-water that water pot returns to 1480 DEG C of blast furnace reception makes the scrap iron in hot-metal bottle melt, and mixing vanadium-titanium-iron-water is made,
Mixing vanadium-titanium-iron-water is transported to steel mill converter extracting vanadium iron making again, being transferred to converter extracting vanadium vanadium extraction using mixing vanadium-titanium-iron-water obtains
To half steel, then by half steel pretreatment desulfurizing, semisteel converter steelmaking technological process is made steel, and is so recycled.By using the party
Method can increase hot metal output about 9.57t per circulation primary.
Embodiment 4
Certain factory's molten iron tankage size is 240t.Mixing vanadium-titanium-iron-water, which enters, is directly blended into converter extracting vanadium vanadium extraction after steel mill, convert
After iron, steel scrap 12.0t is added into empty hot-metal bottle, monolithic steel scrap weight is 70kg, and the hot-metal bottle equipped with steel scrap is capped
The heated by gas station on hot-metal bottle transit route, finally will be equipped with preheating scrap to the scrap steel preheating 1.1h in hot-metal bottle afterwards
The high temperature vanadium-titanium-iron-water that hot-metal bottle returns to 1460 DEG C of blast furnace reception makes the scrap iron in hot-metal bottle melt, and mixing vanadium ferrotianium is made
Water, then mixing vanadium-titanium-iron-water is transported to steel mill converter extracting vanadium iron making, being transferred to converter extracting vanadium using mixing vanadium-titanium-iron-water carries
Vanadium obtains half steel, then by half steel pretreatment desulfurizing, and semisteel converter steelmaking technological process is made steel, and so recycles.By using
This method can increase hot metal output about 11.94t per circulation primary.
Embodiment 5
Certain factory's molten iron tankage size is 240t.Mixing vanadium-titanium-iron-water, which enters, is directly blended into converter extracting vanadium vanadium extraction after steel mill, convert
After iron, steel scrap 14.4t is added into empty hot-metal bottle, monolithic steel scrap weight is 60kg, and the hot-metal bottle equipped with steel scrap is capped
The heated by gas station on hot-metal bottle transit route, finally will be equipped with preheating scrap to the scrap steel preheating 0.8h in hot-metal bottle afterwards
The high temperature vanadium-titanium-iron-water that hot-metal bottle returns to 1440 DEG C of blast furnace reception makes the scrap iron in hot-metal bottle melt, and mixing vanadium ferrotianium is made
Water, then mixing vanadium-titanium-iron-water is transported to steel mill converter extracting vanadium iron making, being transferred to converter extracting vanadium using mixing vanadium-titanium-iron-water carries
Vanadium obtains half steel, then by half steel pretreatment desulfurizing, and semisteel converter steelmaking technological process is made steel, and so recycles.By using
This method can increase hot metal output about 14.36t per circulation primary.
Embodiment 6
Certain factory's molten iron tankage size is 240t.Mixing vanadium-titanium-iron-water, which enters, is directly blended into converter extracting vanadium vanadium extraction after steel mill, convert
After iron, steel scrap 16.8t is added into empty hot-metal bottle, monolithic steel scrap weight is 50kg, and the hot-metal bottle equipped with steel scrap is capped
The heated by gas station on hot-metal bottle transit route, finally will be equipped with preheating scrap to the scrap steel preheating 0.5h in hot-metal bottle afterwards
The high temperature vanadium-titanium-iron-water that hot-metal bottle returns to 1420 DEG C of blast furnace reception makes the scrap iron in hot-metal bottle melt, and mixing vanadium ferrotianium is made
Water, then mixing vanadium-titanium-iron-water is transported to steel mill converter extracting vanadium iron making, being transferred to converter extracting vanadium using mixing vanadium-titanium-iron-water carries
Vanadium obtains half steel, then by half steel pretreatment desulfurizing, and semisteel converter steelmaking technological process is made steel, and so recycles.By using
This method can increase hot metal output about 16.75t per circulation primary.
Embodiment 7
Certain factory's molten iron tankage size is 240t.Mixing vanadium-titanium-iron-water, which enters, is directly blended into converter extracting vanadium vanadium extraction after steel mill, convert
After iron, steel scrap 19.2t is added into empty hot-metal bottle, monolithic steel scrap weight is 60kg, and the hot-metal bottle equipped with steel scrap is capped
The heated by gas station on hot-metal bottle transit route, finally will be equipped with preheating scrap to the scrap steel preheating 0.8h in hot-metal bottle afterwards
The high temperature vanadium-titanium-iron-water that hot-metal bottle returns to 1400 DEG C of blast furnace reception makes the scrap iron in hot-metal bottle melt, and mixing vanadium ferrotianium is made
Water, then mixing vanadium-titanium-iron-water is transported to steel mill converter extracting vanadium iron making, being transferred to converter extracting vanadium using mixing vanadium-titanium-iron-water carries
Vanadium obtains half steel, then by half steel pretreatment desulfurizing, and semisteel converter steelmaking technological process is made steel, and so recycles.By using
This method can increase hot metal output about 19.15t per circulation primary.
The method that a kind of present invention semisteel smelting newly developed increases hot metal output, this method into hot-metal bottle by being added
Steel scrap then will be equipped with preheating scrap using hot-metal bottle waste heat and hot-metal bottle transportational process gas toast station by scrap steel preheating
Hot-metal bottle transports reception high temperature vanadium-titanium-iron-water under blast furnace, to achieve the purpose that increase molten iron production capacity.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from the present invention's
Many other change and modification can be made in the case of spirit and scope.It is, therefore, intended that wrapping in the following claims
Include all such changes and modifications belonged in the scope of the invention.
Claims (10)
1. a kind of scrap steel preheating method, which is characterized in that including：Steel scrap is added into empty hot-metal bottle, the hot-metal bottle is at it
Heated by gas station on transit route is preheated obtained preheating scrap.
2. a kind of scrap steel preheating method described in accordance with the claim 1, which is characterized in that the weight of the steel scrap is the molten iron
The 1/100-10/100 of tankage size.
3. a kind of scrap steel preheating method according to claim 2, which is characterized in that the weight of the steel scrap is the molten iron
The 2/100-8/100 of tankage size.
4. a kind of scrap steel preheating method described in accordance with the claim 1, which is characterized in that a length of 0.5- when the scrap steel preheating
2.5h。
5. a kind of scrap steel preheating method according to claim 4, which is characterized in that a length of 0.5- when the scrap steel preheating
2.0h。
6. a kind of scrap steel preheating method described in accordance with the claim 1, which is characterized in that the steel scrap monolithic weight is 50-
100kg。
7. a kind of method that semisteel smelting increases hot metal output, which is characterized in that including：High temperature vanadium-titanium-iron-water is by claim
Mixing vanadium-titanium-iron-water, the mixing vanadium ferrotianium is made in preheating scrap melting made from 1-6 any one of them scrap steel preheating methods
Water carries out pretreatment desulfurizing again after converter extracting vanadium vanadium extraction, and the half steel after desulfurization is blended into steelmaking converter steel-making again.
8. a kind of semisteel smelting increases the method for hot metal output according to claim 7, which is characterized in that the high temperature vanadium
Ferrotianium water is provided by blast furnace.
9. a kind of scrap steel preheating method according to claim 7, which is characterized in that the mixing vanadium-titanium-iron-water turns through vanadium extraction
Pretreatment desulfurizing is carried out after stove vanadium extraction again, the half steel after desulfurization is blended into steelmaking converter steel-making again.
10. a kind of scrap steel preheating method according to claim 7, which is characterized in that the high temperature vanadium-titanium-iron-water temperature is
1400-1500 DEG C.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109652607A (en) * | 2019-01-23 | 2019-04-19 | 河钢股份有限公司承德分公司 | Steel-making increases the control method of scrap ratio under a kind of duplex technique |
| CN111235339A (en) * | 2020-02-14 | 2020-06-05 | 中冶赛迪工程技术股份有限公司 | Process capable of adjusting furnace burden collocation of converter |
| CN113061682A (en) * | 2021-03-24 | 2021-07-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for increasing consumption of semisteel smelting steel scrap |
| CN113278873A (en) * | 2021-05-20 | 2021-08-20 | 攀钢集团研究院有限公司 | Method for increasing semisteel yield in vanadium-titanium molten iron smelting |
| CN113430332A (en) * | 2021-06-29 | 2021-09-24 | 广东韶钢松山股份有限公司 | Method for recarburizing molten iron of blast furnace |
| CN113462843A (en) * | 2020-03-30 | 2021-10-01 | 上海梅山钢铁股份有限公司 | Method for adding scrap steel into torpedo tank |
| CN114934140A (en) * | 2022-05-09 | 2022-08-23 | 河北新金轧材有限公司 | Organization process for reducing temperature drop of molten iron |
| CN115161429A (en) * | 2022-07-27 | 2022-10-11 | 包头钢铁（集团）有限责任公司 | Method for calculating temperature and weight of hot-metal bottle added with scrap steel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107663561A (en) * | 2017-09-25 | 2018-02-06 | 云南曲靖呈钢钢铁（集团）有限公司 | A kind of smelting process of steel scrap stove external heat reuse |
| CN108004369A (en) * | 2017-12-23 | 2018-05-08 | 新兴铸管股份有限公司 | It is a kind of improve steel scrap enter stove than method for making steel |
-
2018
- 2018-06-06 CN CN201810577348.5A patent/CN108611460A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107663561A (en) * | 2017-09-25 | 2018-02-06 | 云南曲靖呈钢钢铁（集团）有限公司 | A kind of smelting process of steel scrap stove external heat reuse |
| CN108004369A (en) * | 2017-12-23 | 2018-05-08 | 新兴铸管股份有限公司 | It is a kind of improve steel scrap enter stove than method for making steel |
Non-Patent Citations (1)
| Title |
|---|
| 胡继孟: "关于攀钢废钢预热问题的商榷", 《钢铁钒钛》 * |
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| CN109652607A (en) * | 2019-01-23 | 2019-04-19 | 河钢股份有限公司承德分公司 | Steel-making increases the control method of scrap ratio under a kind of duplex technique |
| CN111235339A (en) * | 2020-02-14 | 2020-06-05 | 中冶赛迪工程技术股份有限公司 | Process capable of adjusting furnace burden collocation of converter |
| CN113462843A (en) * | 2020-03-30 | 2021-10-01 | 上海梅山钢铁股份有限公司 | Method for adding scrap steel into torpedo tank |
| CN113061682A (en) * | 2021-03-24 | 2021-07-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for increasing consumption of semisteel smelting steel scrap |
| CN113278873A (en) * | 2021-05-20 | 2021-08-20 | 攀钢集团研究院有限公司 | Method for increasing semisteel yield in vanadium-titanium molten iron smelting |
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| CN113430332B (en) * | 2021-06-29 | 2022-06-10 | 广东韶钢松山股份有限公司 | Method for recarburizing molten iron of blast furnace |
| CN114934140A (en) * | 2022-05-09 | 2022-08-23 | 河北新金轧材有限公司 | Organization process for reducing temperature drop of molten iron |
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| CN115161429A (en) * | 2022-07-27 | 2022-10-11 | 包头钢铁（集团）有限责任公司 | Method for calculating temperature and weight of hot-metal bottle added with scrap steel |
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