CN106834593A - A kind of method that RH refining furnace decarbonization process data are determined with reference heats method - Google Patents
A kind of method that RH refining furnace decarbonization process data are determined with reference heats method Download PDFInfo
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- CN106834593A CN106834593A CN201710077704.2A CN201710077704A CN106834593A CN 106834593 A CN106834593 A CN 106834593A CN 201710077704 A CN201710077704 A CN 201710077704A CN 106834593 A CN106834593 A CN 106834593A
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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
- C21C5/30—Regulating or controlling the blowing
- C21C5/32—Blowing from above
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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
- C21C5/30—Regulating or controlling the blowing
- C21C5/34—Blowing through the bath
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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
- 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
- C21C7/068—Decarburising
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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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
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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
- Y02P10/25—Process efficiency
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention belongs to technical field of ferrous metallurgy, in particular it relates to a kind of method that RH refining furnace decarbonization process data are determined with reference heats method.The present invention determines RH refining furnace decarbonization process data by reference to heat method, by acquisition operations data, set up database, with computer processing data quick and precisely, the completely alternative mode for determining decarburization and temperature increasing schedule with artificial experience at present, the unstability for solve artificial operation, judging, so as to realize accurately controlling the carbon and temperature of RH smelting endpoint molten steels, Promoting Standardized operation.The present invention does not need complicated calculating and accurate model parameter, only need to go to learn the refinery practice data for having refined heat, and decarbonization process data migration is good.
Description
Technical field
The invention belongs to technical field of ferrous metallurgy, in particular it relates to one kind establishes RH essences with reference heats method
The method of furnace decarbonization process data.
Background technology
Now with the raising of steel mill's variety steel ratio, particularly mild steel, a large amount of productions of ultra-low-carbon steel (such as IF steel),
Requirement to RH vacuum decarburization controlled levels also more and more higher.
RH vacuum refining process occurs in closed vacuum chamber, and its high-temperature metallurgical reaction process belongs to half black box, and this makes
People are difficult to its understanding, and reaction mechanism, the reflex action of refining process can only all be judged by analyzing and estimating.Judge
The whether accurate experience for being heavily dependent on operator, have very big accidental rate in operation, due to operator's level
It is uneven, frequently appear in carbon and temperature exceeding standard in RH smelting endpoint molten steels situation occur, how to improve the steady of operation
Qualitative, this important task depends on computer model to complete.
But current RH decarburization models are divided by RH equipment for vacuum refining and produced on-site ultra-low-carbon steel technique
Analysis, then establishes RH vacuum decarburization mechanism, and then develop suitable for this enterprise using vacuum decarburization thermodynamics and dynamics theory
The decarburization model of the RH equipment for vacuum refining of industry, such decarburization model computational methods are complicated, the accuracy heavy dependence meter of calculating
Calculate the adaptability of model parameter in formula.Its model parameter changes with production technology, need to could be reached by long-felt
To production accuracy requirement, and Ge Jia steel mills equipment and technological parameter it is different so that Model suitability is poor, model
It is required to grope model parameter for a long time after transplanting.
The content of the invention
To solve problem above, the present invention provides a kind of simple and practical and wide adaptability RH refining furnaces decarbonization process parameter
Determine method.
When RH is refined, the primary condition of RH refining furnace molten steel is influenceed to be mainly：Enter carbon in RH refining furnace molten steel, oxygen content,
The addition of temperature and slag modification agent.
In the present invention, the refinery practice of RH refining furnaces is：Refining furnace recyclegas flow system, vacuum chamber pressure drop system,
Blowing oxygen quantity, oxygen blast opportunity, decarburization time, decarburization initial stage are the aluminum amount added that heats up.
After refining, the target temperature of molten steel and the smelting result that target carbon content is the stove.
If the primary condition of the stove molten steel is identical, refinery practice is identical, the smelting result of the stove is identical.
Concrete technical scheme of the invention is as follows：
The method that RH refining furnace decarbonization process parameters are determined with reference heats method of the invention, comprises the following steps：
(1) data below is gathered, database is set up using computer：
a:The steel grade number of smelting；
b:Heat (batch) number；
c:Metal Weight, unit ton；It is designated as C；
d:Dissolved oxygen content in converter smelting endpoint molten steel, unit ppm；It is designated as D；
e:Carbon content in converter smelting endpoint molten steel, unit ppm；It is designated as E；
f:The temperature of converter smelting endpoint molten steel, unit DEG C；It is designated as F；
g:The addition of modification agent in converter tapping process, unit K g；It is designated as G；
h:Addition containing manganese alloy, unit K g in converter tapping process；It is designated as H；Wherein, in the converter tapping process
The addition of manganese, unit K g；It is designated as H1, H1It is the manganese content sum of the manganese alloy of addition, computing formula is：H1=Σ H* manganese is closed
The mass percent of the manganese in gold；
i:RH refining furnaces enter the station steel content of oxygen dissolved in water, unit ppm；It is designated as I；
j:RH refining furnaces enter the station the temperature of molten steel, unit DEG C；It is designated as J；
k:RH refining furnace recyclegas flow systems；
l:The vacuum chamber pressure drop system of RH refining furnaces；
m:RH refining furnace blowing oxygen quantities, unit m3；It is designated as M；
n:RH refining furnace oxygen blast opportunitys；
o:The RH refining furnace decarburization initial stages are the heat up aluminum amount added, units/kg；It is designated as O；
p:RH refining furnace decarburization times, unit min；It is designated as P；
q:The target temperature of the stove molten steel, unit DEG C；It is designated as Q；
r:The target carbon content of the stove molten steel, unit ppm；It is designated as R；
s:RH refining furnace decarburizations add aluminum amount, units/kg to be designated as S after terminating；
(2) be accumulate to when the gathered data of lane database certain steel grade >=400 heat when, the database is used to determining described
The RH refining furnace decarbonization process data of steel grade；
(3) after converter smelting terminates, database is opened, in simultaneously meeting converter smelting endpoint molten steel in search database
Carbon content, oxygen content, converter tapping process in the addition of slag modification agent, RH enter the station after dissolved oxygen content in molten steel
With the target carbon content of molten steel with the data deviation of the converter molten steel 10%~15%, meanwhile, meet steel grade number identical
And RH enters the station the heat of the target temperature with the data deviation of the converter molten steel at 3~5 DEG C of temperature and the molten steel of molten steel；
(4) blowing oxygen quantity (m in all heats of above-mentioned condition will be met3), decarburization time (min), the decarburization initial stage for rise
The aluminum amount (kg) of temperature addition adds aluminum amount (kg) to take blowing oxygen quantity (m of the arithmetic average as this heat after terminating with decarburization3), it is de-
Carbon time (min), decarburization initial stage are to heat up after the aluminum amount (kg) added terminates with decarburization to add aluminum amount (kg)；Searched from step (3)
Rope to all heats in select with this heat converter smelting endpoint molten steel in the immediate heat of carbon content, and should
The RH refining furnace recyclegas flows system of the heat selected, vacuum chamber pressure drop system, oxygen blast opportunity as this heat RH
Refining furnace recyclegas flow system, vacuum chamber pressure drop system, oxygen blast opportunity；
(5) after the refining of this heat terminates, if the carbon content of molten steel and temperature are in target zone, by this heat
Refinery practice data are stored in database.
According to method of the present invention, wherein, after step (3) described converter smelting terminates, detected using revolving furnace sublance
The C of converter smelting endpoint molten steel, [O] content and temperature, control the quantity of slag under converter in converter tapping process, record converter tapping
Process detects [O] content and temperature of the molten steel that enters the station after adding slag modification dosage and alloy amount, RH to enter the station, and is input into the stove molten steel
Target temperature and target carbon content.
According to method of the present invention, wherein, the carbon content target zone of step (5) described molten steel is the mesh with molten steel
10%~15%, the temperature objectives scope of the molten steel is the aim carbon content deviation with molten steel 3~5 to mark carbon content deviation
℃。
According to method of the present invention, the present invention can use Excel forms, Structured Query Language
The usual manners such as software set up database.
Beneficial effects of the present invention：
1st, the present invention determines RH refining furnace decarbonization process data by reference to heat method, by acquisition operations data, sets up
Database, it is, completely alternative to determine decarburization and temperature increasing schedule with artificial experience at present with computer processing data quick and precisely
Mode, the unstability for solve artificial operation, judging, so as to realize accurately controlling the carbon and temperature of RH smelting endpoint molten steels, push away
Enter standardized work.
2nd, the present invention determines RH refining furnace decarbonization process data by reference to heat method, and process data adaptability is good, this hair
Bright referenced heat is to cause to refine the carbon content and the qualified stove of temperature in endpoint molten steel by rational refinery practice
It is secondary, its rational refinery practice be by practice test, it is determined that process data accurately and reliably.
3rd, the present invention determines RH refining furnace decarbonization process data by reference to heat method, it is not necessary to complicated calculating and accurate
Model parameter, only need to go to learn the refinery practice data for having refined heat, decarbonization process data migration is good.
Specific embodiment
Below with DDQ grades of deep-draw level steel, as a example by steel grade number determines and applies for the RH refining furnace decarbonization process data of LHG2,
The present invention is further described.
The method that utilization reference heats method of the invention determines RH refining furnace decarbonization process data, including converter smelting knot
Beam, using the C of revolving furnace sublance detection converter smelting endpoint molten steel, [O] content and temperature, in converter tapping process under control converter
The quantity of slag, and converter tapping process plus slag modification dosage and alloy amount are recorded, RH detects [O] content for the molten steel that enters the station after entering the station
And temperature.
Step is as follows：
(1) data below is gathered, database is set up using computer：
a:The steel grade number of smelting；
b:Heat (batch) number；
c:Metal Weight, unit ton；It is designated as C；
d:Dissolved oxygen content in converter smelting endpoint molten steel, unit ppm；It is designated as D；
e:Carbon content in converter smelting endpoint molten steel, unit ppm；It is designated as E；
f:The temperature of converter smelting endpoint molten steel, unit DEG C；It is designated as F；
g:The addition of modification agent in converter tapping process, unit K g；It is designated as G；
h:Addition containing manganese alloy, unit K g in converter tapping process；It is designated as H；Wherein, in the converter tapping process
The addition of manganese, unit K g；It is designated as H1, H1It is the manganese content sum of the manganese alloy of addition, computing formula is：H1=Σ H* manganese is closed
The mass percent of the manganese in gold；
i:RH refining furnaces enter the station steel content of oxygen dissolved in water, unit ppm；It is designated as I；
j:RH refining furnaces enter the station the temperature of molten steel, unit DEG C；It is designated as J；
k:RH refining furnace recyclegas flow systems；
l:The vacuum chamber pressure drop system of RH refining furnaces；
m:RH refining furnace blowing oxygen quantities, unit m3；It is designated as M；
n:RH refining furnace oxygen blast opportunitys；
o:The RH refining furnace decarburization initial stages are the heat up aluminum amount added, units/kg；It is designated as O；
p:RH refining furnace decarburization times, unit min；It is designated as P；
q:The target temperature of the stove molten steel, unit DEG C；It is designated as Q；
r:The target carbon content of the stove molten steel, unit ppm；It is designated as R；
s:RH refining furnace decarburizations add aluminum amount, units/kg to be designated as S after terminating；
(2) be accumulate to when the gathered data of lane database certain steel grade >=400 heat when, the database is used to determining described
The RH refining furnace decarbonization process data of steel grade；
(3) after converter smelting terminates, using the C of revolving furnace sublance detection converter smelting endpoint molten steel, [O] content and temperature,
The quantity of slag under converter is controlled in converter tapping process, converter tapping process plus slag modification dosage and alloy amount is recorded, RH enters the station
[O] content and temperature of the molten steel that enters the station are detected afterwards, and are input into the target temperature and target carbon content of the stove molten steel；
Database is opened, the carbon content in converter smelting endpoint molten steel, oxygen content can be simultaneously met in search database, is turned
The addition of the slag modification agent in stove tapping process, RH enter the station after dissolved oxygen content in molten steel and molten steel target carbon content
With the data deviation of the converter molten steel 10%~15%, meanwhile, the temperature of the molten steel that meets that steel grade number is identical and RH enters the station
The heat of degree and the target temperature of molten steel with the data deviation of the converter molten steel at 3~5 DEG C；
(4) blowing oxygen quantity (m in all heats of above-mentioned condition will be met3), decarburization time (min), the decarburization initial stage for rise
The aluminum amount (kg) of temperature addition adds aluminum amount (kg) to take blowing oxygen quantity (m of the arithmetic average as this heat after terminating with decarburization3), it is de-
Carbon time (min), decarburization initial stage are to heat up after the aluminum amount (kg) added terminates with decarburization to add aluminum amount (kg)；Searched from step (3)
Rope to all heats in select with this heat converter smelting endpoint molten steel in the immediate heat of carbon content, and should
The RH refining furnace recyclegas flows system of heat, vacuum chamber pressure drop system, oxygen blast opportunity are followed as the RH refining furnaces of this heat
Ring gas flow system, vacuum chamber pressure drop system, oxygen blast opportunity；
(5) after stove refining terminates, if the carbon content of molten steel and temperature are in target zone, by the refining of the stove
Process data is stored in database.
Embodiment 1
After heat (batch) number 4-3134 ladles are transported into RH refining furnaces, gathered data：Steel grade number is in LHG2, converter smelting endpoint molten steel
Dissolved oxygen be 842 (ppm), carbon be that 0.041%, molten steel weighs the addition of modification agent in 133.6 (tons), converter tapping process
300 (kg), middle manganese addition is 120 (kg).
It is 1612 DEG C using determine oxygen constant temperature probe to survey enter the station dissolved oxygen content 368 (ppm) in molten steel, liquid steel temperatures of RH,
After calling database, the suitable molten steel of 2 stoves of heat (batch) number 4-2223 and heat (batch) number 4-2564, the converter smelting endpoint of this two stove steel are searched out
The addition of the slag modification agent in carbon content, oxygen content, converter tapping process in molten steel, RH enter the station after dissolving in molten steel
The data deviation of oxygen content, the target carbon content of molten steel and heat (batch) number 4-3134 molten steel is within ± 10%, steel grade number is identical and
The temperature deviation of the temperature of molten steel, the target temperature of molten steel and heat (batch) number 4-3134 molten steel of entering the station within ± 3 DEG C, to this two stoves steel
Blowing oxygen quantity (m in RH refining process3), decarburization time (min), decarburization initial stage be heat up aluminum amount (kg), the decarburization of addition
After end plus aluminum amount (kg) takes arithmetic average and is：RH refining furnace blowing oxygen quantities 80m3, it is RH refining furnaces decarburization time 21 (min), de-
The carbon initial stage is the aluminum amount 120 (kg) added that heats up, and decarburization adds aluminum amount 115 (kg) after terminating.
Carbon content in this two stoves steel in 4-2223 and 4-3134 converter smelting endpoint molten steels is closest, by the stove of 4-2223
Secondary RH refining furnace recyclegas flows system, vacuum chamber pressure drop system, oxygen blast opportunity as 4-3134 heats RH refining furnaces
Recyclegas flow system, vacuum chamber pressure drop system, oxygen blast opportunity.
The molten steel of heat (batch) number 4-3134 RH refining furnaces blowing oxygen quantity 80m in RH refining process3, RH refining furnaces decarburization time 21
(min), the decarburization initial stage be heat up addition aluminum amount 120 (kg), using with heat (batch) number 4-2223 identical RH refining furnace recyclegas
The refinery practices such as flow system, vacuum chamber pressure drop system, oxygen blast opportunity, after the completion of refining, steel quality is qualified, by heat (batch) number 4-
3134 refinery practice data are stored in database.
Related heat process data see the table below 1.
The heat process data of 1 embodiment of table 1
Embodiment 2
After heat (batch) number 4-3369 ladles are transported into RH refining furnaces, gathered data：Steel grade number is in LHG2, converter smelting endpoint molten steel
Dissolved oxygen be 795 (ppm), carbon be that 0.040%, molten steel weighs the addition 300 of modification agent in 132 (tons), converter tapping process
(kg), middle manganese addition is 120 (kg).
It is 1608 DEG C using determine oxygen constant temperature probe to survey enter the station dissolved oxygen content 342 (ppm) in molten steel, liquid steel temperatures of RH,
After calling database, the suitable molten steel of 3 stoves of heat (batch) number 4-2223,4-2638 and heat (batch) number 4-3134, the converter smelting of this 3 stove steel are searched out
The addition of slag modification agent in carbon content, oxygen content, converter tapping process in refining endpoint molten steel, RH enter the station after in molten steel
Dissolved oxygen content, the target carbon content of molten steel and heat (batch) number 4-3369 molten steel data deviation within ± 15%, steel grade phase
The temperature deviation of same and the temperature of the molten steel that enters the station, the target temperature of molten steel and heat (batch) number 4-3369 molten steel is right within ± 5 DEG C
Blowing oxygen quantity (m of this two stoves steel in RH refining process3), decarburization time (min), decarburization initial stage be the aluminum amount of addition of heating up
(kg) after, decarburization terminates plus aluminum amount (kg) takes arithmetic average and is：RH refining furnace blowing oxygen quantities 79m3, RH refining furnaces decarburization time 20
(min), the decarburization initial stage is the aluminum amount 115 (kg) added that heats up, and decarburization adds aluminum amount 119 (kg) after terminating.
Carbon content in this two stoves steel in 4-2638 and 4-3369 converter smelting endpoint molten steels is closest, by the stove of 4-2638
Secondary RH refining furnace recyclegas flows system, vacuum chamber pressure drop system, oxygen blast opportunity as 4-3369 heats RH refining furnaces
Recyclegas flow system, vacuum chamber pressure drop system, oxygen blast opportunity.
The molten steel of heat (batch) number 4-3369 RH refining furnaces blowing oxygen quantity 80m in RH refining process3, RH refining furnaces decarburization time 20
(min), the decarburization initial stage be heat up addition aluminum amount 115 (kg), decarburization terminate after plus aluminum amount 119 (kg), using with heat (batch) number 4-
The refinery practices such as 2638 identical RH refining furnace recyclegas flows systems, vacuum chamber pressure drop system, oxygen blast opportunity, refining is completed
Afterwards, steel quality is qualified, and the refinery practice data of heat (batch) number 4-3369 are stored in into database.
Related heat process data see the table below 2.
The heat process data of 2 embodiment of table 2
Non-elaborated part of the present invention belongs to techniques well known.
Certainly, the present invention can also have various embodiments, in the case of without departing substantially from spirit of the invention and its essence, be familiar with
Those skilled in the art can disclosure of the invention make various corresponding changes and deformation, but these it is corresponding change and
Deformation should all belong to scope of the claims of the invention.
Claims (3)
1. a kind of method that RH refining furnace decarbonization process data are established with reference heats method, comprises the following steps：
(1) data below is gathered, database is set up using computer：
a:The steel grade number of smelting；
b:Heat (batch) number；
c:Metal Weight, unit ton；It is designated as C；
d:Dissolved oxygen content in converter smelting endpoint molten steel, unit ppm；It is designated as D；
e:Carbon content in converter smelting endpoint molten steel, unit ppm；It is designated as E；
f:The temperature of converter smelting endpoint molten steel, unit DEG C；It is designated as F；
g:The addition of modification agent in converter tapping process, unit K g；It is designated as G；
h:Addition containing manganese alloy, unit K g in converter tapping process；It is designated as H；Wherein, manganese in the converter tapping process
Addition, unit K g；It is designated as H1, H1It is the manganese content sum of the manganese alloy of addition, computing formula is：H1In=Σ H* manganese alloys
Manganese mass percent；
i:RH refining furnaces enter the station steel content of oxygen dissolved in water, unit ppm；It is designated as I；
j:RH refining furnaces enter the station the temperature of molten steel, unit DEG C；It is designated as J；
k:RH refining furnace recyclegas flow systems；
l:The vacuum chamber pressure drop system of RH refining furnaces；
m:RH refining furnace blowing oxygen quantities, unit m3；It is designated as M；
n:RH refining furnace oxygen blast opportunitys；
o:The RH refining furnace decarburization initial stages are the heat up aluminum amount added, units/kg；It is designated as O；
p:RH refining furnace decarburization times, unit min；It is designated as P；
q:The target temperature of the stove molten steel, unit DEG C；It is designated as Q；
r:The target carbon content of the stove molten steel, unit ppm；It is designated as R；
s:RH refining furnace decarburizations add aluminum amount, units/kg to be designated as S after terminating；
(2) be accumulate to when the gathered data of lane database certain steel grade >=400 heat when, the database is used to determine the steel grade
RH refining furnace decarbonization process data；
(3) after converter smelting terminates, database is opened, the carbon in converter smelting endpoint molten steel can be simultaneously met in search database
The addition of the slag modification agent in content, oxygen content, converter tapping process, RH enter the station after dissolved oxygen content and steel in molten steel
The target carbon content of water with the data deviation of the converter molten steel 10%~15%, meanwhile, meet steel grade number it is identical and
RH enter the station molten steel temperature and molten steel heat of the target temperature with the data deviation of the converter molten steel at 3~5 DEG C；
(4) will meet the blowing oxygen quantity in all heats of above-mentioned condition, decarburization time, decarburization initial stage is the aluminum amount of addition of heating up
Aluminum amount is added to take arithmetic average as the blowing oxygen quantity, decarburization time, decarburization initial stage of this heat for intensification adds after terminating with decarburization
Plus aluminum amount and decarburization terminate after plus aluminum amount；The converter with this heat is selected in all heats searched from step (3)
The immediate heat of carbon content in smelting endpoint molten steel, and by the RH refining furnace recyclegas flow systems of the heat selected
Degree, vacuum chamber pressure drop system, oxygen blast opportunity as this heat RH refining furnace recyclegas flows system, vacuum chamber pressure drop system
Degree, oxygen blast opportunity；
(5) after the refining of this heat terminates, if the carbon content of molten steel and temperature are in target zone, by the refining of this heat
Process data is stored in database.
2. method according to claim 1, it is characterised in that after step (3) described converter smelting terminates, using converter pair
Rifle detects C, [O] content and the temperature of converter smelting endpoint molten steel, and the quantity of slag under converter is controlled in converter tapping process, records and turns
Stove tapping process detects [O] content and temperature of the molten steel that enters the station after adding slag modification dosage and alloy amount, RH to enter the station, and input should
The target temperature and target carbon content of stove molten steel.
3. method according to claim 1, it is characterised in that the carbon content target zone of step (5) described molten steel be with
10%~15%, the temperature objectives scope of the molten steel is inclined with the target carbon content of molten steel to the aim carbon content deviation of molten steel
Difference is at 3~5 DEG C.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342540A (en) * | 2018-04-18 | 2018-07-31 | 武汉科技大学 | A kind of steel mill RH refining equipment automatic control systems |
| CN109777923A (en) * | 2019-02-28 | 2019-05-21 | 北京首钢股份有限公司 | A kind of RH refined alloy addition control method |
| CN111334636A (en) * | 2020-03-27 | 2020-06-26 | 宝钢湛江钢铁有限公司 | Converter end point dynamic control method and system based on sublance detection |
| CN111581190A (en) * | 2020-04-01 | 2020-08-25 | 本钢板材股份有限公司 | Converter smelting process guidance and accident early warning method based on historical data |
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| CN113930573A (en) * | 2021-09-08 | 2022-01-14 | 山东钢铁股份有限公司 | Bottom blowing instantaneous flow dynamic control method of top-bottom combined blown converter |
| CN115096105A (en) * | 2022-07-29 | 2022-09-23 | 中国重型机械研究院股份公司 | Circulating gas control method based on RH refining process |
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| CN108342540A (en) * | 2018-04-18 | 2018-07-31 | 武汉科技大学 | A kind of steel mill RH refining equipment automatic control systems |
| CN108342540B (en) * | 2018-04-18 | 2019-12-03 | 武汉科技大学 | A kind of steel mill RH refining equipment automatic control system |
| CN109777923A (en) * | 2019-02-28 | 2019-05-21 | 北京首钢股份有限公司 | A kind of RH refined alloy addition control method |
| CN112863609A (en) * | 2019-11-12 | 2021-05-28 | 宝信软件(武汉)有限公司 | Method and device for calculating oxygen blowing amount and coolant amount in converter steelmaking |
| CN111334636A (en) * | 2020-03-27 | 2020-06-26 | 宝钢湛江钢铁有限公司 | Converter end point dynamic control method and system based on sublance detection |
| CN111334636B (en) * | 2020-03-27 | 2022-04-08 | 宝钢湛江钢铁有限公司 | Converter end point dynamic control method and system based on sublance detection |
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| CN111581190B (en) * | 2020-04-01 | 2024-01-26 | 本钢板材股份有限公司 | Converter smelting process guidance and accident early warning method based on historical data |
| CN113430333A (en) * | 2021-07-13 | 2021-09-24 | 北京科技大学 | Intelligent stable smelting control method for ladle refining furnace |
| CN113430333B (en) * | 2021-07-13 | 2022-04-12 | 北京科技大学 | Intelligent stable smelting control method for ladle refining furnace |
| CN113930573A (en) * | 2021-09-08 | 2022-01-14 | 山东钢铁股份有限公司 | Bottom blowing instantaneous flow dynamic control method of top-bottom combined blown converter |
| CN115096105A (en) * | 2022-07-29 | 2022-09-23 | 中国重型机械研究院股份公司 | Circulating gas control method based on RH refining process |
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