CN105714014A - Converter oxygen gun/charging/temperature institution comprehensive simplified model system and operation method - Google Patents
Converter oxygen gun/charging/temperature institution comprehensive simplified model system and operation method Download PDFInfo
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- CN105714014A CN105714014A CN201610195959.4A CN201610195959A CN105714014A CN 105714014 A CN105714014 A CN 105714014A CN 201610195959 A CN201610195959 A CN 201610195959A CN 105714014 A CN105714014 A CN 105714014A
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention relates to a converter oxygen gun/charging/temperature institution comprehensive simplified model system and an operation method. The operation method comprises the following steps: according to each chemical element, a temperature and a molten iron quantity of molten iron conditions, a waste steel number and influence of each external condition on the temperature, a target oxygen and tapping temperature is set according to a steel type terminal point, and various material quantities are predicted, calculated and added; when the predicted temperature is badly insufficient to influence the tapping temperature safety, the blowing flow and the waste steel are reduced for making up according to a difference between the predicted terminal temperature and a theoretic tapping temperature; and gun positions of oxygen guns are respectively calculated according to different slagging modes. The operation method is developed according to actual parameters of a converter technological process, is suitable for scene demands, is higher in practicability, is high in intelligent comprehensive degree, relieves the working burden of operators, and reduces quality accidents caused by manual calculation errors.
Description
Technical field
The present invention relates to a kind of steel mill converter operating technology, specifically a kind of converter oxygen gun/reinforced/comprehensive simplified model system of temperature schedule and operational approach.
Background technology
Steelmaker's experiential operating is generally depended in traditional pneumatic steelmaking unduly, operation in composition, temperature, the working of a furnace etc. controls all not standardize, feeding quantity artificially calculates, make operation management hold and be in uncontrolled shape, state aim carbon, temperature hit rate are relatively low, the fluctuation such as composition, temperature is relatively big, and abnormal heat is many, thus causing the working of a furnace to lose；Reinforced, carburetting, alloying etc. add and remain as artificial experience and perform, and efficiency is low, accident risk is high, labor strength is big, and system enforceability is poor.
Summary of the invention
, carburetting reinforced for steel mill's converter in prior art, alloying etc. add and remain as artificial experience and perform, there is labor strength big, system enforceability is poor waits deficiency, and the technical problem to be solved in the present invention is to provide a kind of on-the-spot converter oxygen gun/reinforced/comprehensive simplified model of temperature schedule needing, reducing artificial counting loss and operational approach of fitting.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
One converter oxygen gun of the present invention/reinforced/comprehensive simplified model system of temperature schedule, comprises the following steps:
According to each chemistry essence of molten iron condition, temperature and iron water amount, steel scrap quantity and the impact on temperature of the Each External condition, predict according to steel grade terminal target setting oxygen and tapping temperature and calculate the various inventories of addition；
When predicted temperature wretched insufficiency affect tapping temperature safe time, according to the gap between prediction outlet temperature and theoretical tapping temperature, reduce blowing flow, reduce steel scrap and make up；
Oxygen lance position then calculates respectively according to slag making pattern difference.
Further comprising the steps of: considering that the material containing MgO changes, made dynamic select button, when using magnesite, select button makes dolomite be converted to magnesite, and doses calculates automatically according to magnesite；Or utilize when cooling material is without material and select control to realize selecting without cooling material.
When predicted temperature wretched insufficiency affect tapping temperature safe time, if by reducing blowing flow, reduce steel scrap and cannot make up, then calculate according to temperature spread and in required stove, use temperature raising agent.
Introducing time control is to realize rifle position Dynamic Announce directly perceived, and rifle position standard dynamically changes according to duration of blast step.
During to the requirement difference of material variety, using and select control to realize various combination condition, algorithm sets the computing formula used under different condition according to different condition, respectively correspondence.
If the inventory of cost optimization can not satisfied temperature requirement, then first protect outlet temperature meet considers further that Material Cost optimization.
One converter oxygen gun of the present invention/reinforced/comprehensive simplified model system operation methods of temperature schedule, step is as follows:
Main operation interface enters converter oxygen gun/reinforced/comprehensive simplified model interface of temperature schedule；
At converter oxygen gun/reinforced/temperature schedule comprehensive simplified model, interface carries out following operation according to actual steel grade:
Select smelting pattern；
Input terminal goal setting oxygen；
Input molten iron C, molten iron Si and ferrum temperature critical external condition；
Input molten iron carbon, molten iron silicon and ferrum temperature external condition；
Select stove seat, flow, class not, steel grade classification and special circumstances pattern；
When above-mentioned various selections carry out, model recalculates each material base amount and additional amount and predicted temperature, disposal suggestion and timesharing rifle position automatically；
Starting start button and start blowing, run rifle bitmap spectrum, rifle place value progress in time highlights.
Further comprising the steps of:
If predicted temperature is lower than setting, changing the setting of terminal oxygen amount, flow parameter, adjuvant addition is adapted to suitable target temperature accordingly automatically.
Further comprising the steps of:
If conditions present has been arranged to the limit still cannot meet tapping theoretical end point lower limit temperature, click temperature and adjust recommendation button, pop-up interface occurs, add ferrosilicon according to the ferrosilicon suggestion amount tissue of corresponding predicted temperature, and point out the cost of increase.
Further comprising the steps of:
If dolomite lacks material, select magnesite；Or without limestone, switch to without limestone；
Or, when sinter return fine or steel slag particles are without material, select " without cooling material " or individually select " without steel slag particles ".
The invention have the advantages that and advantage:
1. the present invention is directed to the exploitation of converter process flow process actual parameter, laminating scene needs, and practicality is extremely strong, and intelligent comprehensive degree is high, alleviates the work load of operative employee, reduces the quality accident that artificial counting loss causes.
2. the present invention is according to producing practical situation, accomplish fully to integrate and specification three big process systems, operative employee is operated according to model, specification operation behavior, improve the stability of procedure parameter, benign cycle is formed in composition, temperature, the working of a furnace etc., and balk cargo is managed by the raising of standardization level, process system management all has bigger help, makes every management easily be in slave mode.
Accompanying drawing explanation
Fig. 1 is converter oxygen gun of the present invention/reinforced/comprehensive simplified model surface chart of temperature schedule；
Fig. 2 automatically generates each material base amount and additional amount and predicted temperature, disposal suggestion dialog box sectional drawing in the present invention；
Fig. 3 is that converter in the present invention, oxygen rifle be reinforced and temperature schedule simplified model sectional drawing；
Fig. 4 be in figure 3 operation eject add ferrosilicon pop-up interface sectional drawing；
Fig. 5 A is one of window enlarged drawing of ejecting of the present invention；
Fig. 5 B is the two of the window enlarged drawing that the present invention ejects；
Fig. 6 is oxygen lance position operation sectional drawing in the present invention；
Fig. 7 is the operation sectional drawing when dolomite uses magnesite to replace without material；
Fig. 8 is the operation sectional drawing when sinter return fine or steel slag particles are without material.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is further elaborated.
One converter oxygen gun of the present invention/reinforced/comprehensive simplified model system of temperature schedule, comprises the following steps:
According to each chemistry essence of molten iron condition, temperature and iron water amount, steel scrap quantity and the impact on temperature of the Each External condition, predict according to steel grade terminal target setting oxygen and tapping temperature and calculate the various inventories of addition；
When predicted temperature wretched insufficiency affect tapping temperature safe time, according to the gap between prediction outlet temperature and theoretical tapping temperature, reduce blowing flow, reduce steel scrap and make up；
Oxygen lance position then calculates respectively according to slag making pattern difference.
One converter oxygen gun of the present invention/reinforced/comprehensive simplified model system operation methods of temperature schedule, step is as follows:
Main operation interface enters converter oxygen gun/reinforced/comprehensive simplified model interface of temperature schedule；
At converter oxygen gun/reinforced/temperature schedule comprehensive simplified model, interface carries out following operation according to actual steel grade:
Select smelting pattern；
Input terminal goal setting oxygen；
Input molten iron C, molten iron Si and ferrum temperature critical external condition；
Input molten iron carbon, molten iron silicon and ferrum temperature external condition；
Select stove seat, flow, class not, steel grade classification and special circumstances pattern；
When above-mentioned various selections carry out, model recalculates each material base amount and additional amount and predicted temperature, disposal suggestion and timesharing rifle position automatically；
Starting start button and start blowing, run rifle bitmap spectrum, rifle place value progress in time highlights.
If predicted temperature is lower than setting, changing the setting of terminal oxygen amount, flow parameter, adjuvant addition is adapted to suitable target temperature accordingly automatically.
As it is shown in figure 1, be converter oxygen gun of the present invention/reinforced/temperature schedule comprehensive simplified model interface diagram.
Model of the present invention is contained slag material under existing 4 kinds of slag making modes and is added the additional amount under basic crack, various abnormal conditions, rifle position moving model under all slag making modes and temperature prediction, specific as follows:
1) smelting pattern (divide single slag process, pure double slag process, few slag method, stay 4 kinds of patterns such as slag method) is selected.
2) input terminal goal setting oxygen (namely requiring corresponding target endpoint oxygen according to steel grade carbon content).
3) the input critical external condition such as molten iron C, molten iron Si, ferrum temperature (foundation slag charge, add the key parameter of slag material calculating and temperature prediction).
4) select stove seat, flow, class not, steel grade classification, special circumstances isotype (according to information above correspondence predicted temperature and add slag material, option is given tacit consent to constant after arranging).
5) if the scarce material such as dolomite, there is magnesite optional；Or without limestone, switch to without limestone；If the optional sinter return fine of iron content cooling material or steel slag particles.
6) when various selections carry out, model recalculates each material base amount and additional amount and predicted temperature, disposal suggestion and timesharing rifle position automatically.
7) on the low side if operating this model prediction temperature before converter starts to smelt, can suitably change the parameters such as the setting of terminal oxygen amount, flow, adjuvant addition can be adapted to suitable target temperature accordingly automatically, if conditions present is to " extremely " arranging and still cannot meet tapping theoretical end point lower limit temperature, " temperature adjustment suggestion " button (as shown in Figure 2) can be clicked, there will be pop-up interface, teams and groups add ferrosilicon according to the ferrosilicon suggestion amount tissue of corresponding predicted temperature, and point out the cost of increase, as shown in Figure 3,4.
Add ferrosilicon prompting interface such as shown in Fig. 5 A, 5B.
8) blowing starts to start left side start button, runs rifle bitmap spectrum, and rifle place value progress in time highlights, and operation is as shown in Figure 6.
9) when dolomite uses magnesite to replace without material, the select button clicking " dolomite " lower section carries out selecting replacement to become " magnesite ", and operation is as shown in Figure 7.
10) when sinter return fine or steel slag particles are without material, it is possible to selecting " without cooling material " or individually select " without steel slag particles ", operation is as shown in Figure 8.
Model of the present invention uses Excel function formula and VBA programming language to form.
It is first according to each chemistry essence of molten iron condition, temperature and iron water amount, steel scrap quantity and the impact on temperature of the Each External condition, predict to calculate according to steel grade terminal target setting oxygen and tapping temperature and add various inventories, if the inventory of cost optimization can not satisfied temperature requirement, then first guarantor's outlet temperature is satisfied considers further that Material Cost optimization, and this part is formula and writes.
Owing to converter is more, class other, steel grade structure is different, the particular/special requirement of material variety is different, use more selection control to realize various combination condition, then algorithm sets the computing formula used under different condition, difference correspondence according to different condition.
When predicted temperature wretched insufficiency affect tapping temperature safe time, model considers according to the gap between prediction outlet temperature and theoretical tapping temperature, first advise that reducing the outside selection such as blowing flow, minimizing steel scrap makes up, but calculate use temperature raising agent in required stove according to temperature spread when cannot make up.
Rifle position then calculates respectively according to slag making pattern difference, in addition for realizing rifle position Dynamic Announce directly perceived, introduces time control, and rifle position standard dynamically changes according to duration of blast step.
And owing to the material containing MgO is likely to change, having made dynamic select button, when using magnesite, select button makes dolomite be converted to magnesite, and doses calculates automatically according to magnesite；Or utilize when cooling material is without material and select control to realize selecting without cooling material.
Claims (10)
1. converter oxygen gun/reinforced/comprehensive simplified model system of temperature schedule, it is characterised in that comprise the following steps:
According to each chemistry essence of molten iron condition, temperature and iron water amount, steel scrap quantity and the impact on temperature of the Each External condition, predict according to steel grade terminal target setting oxygen and tapping temperature and calculate the various inventories of addition；
When predicted temperature wretched insufficiency affect tapping temperature safe time, according to the gap between prediction outlet temperature and theoretical tapping temperature, reduce blowing flow, reduce steel scrap and make up；
Oxygen lance position then calculates respectively according to slag making pattern difference.
2. by the converter oxygen gun described in claim 1/reinforced/comprehensive simplified model system of temperature schedule, characterized by further comprising following steps: consider that the material containing MgO changes, make dynamic select button, when using magnesite, select button makes dolomite be converted to magnesite, and doses calculates automatically according to magnesite；Or utilize when cooling material is without material and select control to realize selecting without cooling material.
3. by the converter oxygen gun described in claim 1/reinforced/comprehensive simplified model system of temperature schedule, it is characterized in that: when predicted temperature wretched insufficiency affect tapping temperature safe time, if by reducing blowing flow, reduce steel scrap and cannot make up, then calculate according to temperature spread and in required stove, use temperature raising agent.
4. by the converter oxygen gun described in claim 1/reinforced/comprehensive simplified model system of temperature schedule, it is characterised in that: introducing time control to realize rifle position Dynamic Announce directly perceived, rifle position standard dynamically changes according to duration of blast step.
5. by the converter oxygen gun described in claim 1/reinforced/comprehensive simplified model system of temperature schedule, characterized by further comprising following steps: during to the requirement difference of material variety, use and select control to realize various combination condition, algorithm sets the computing formula used under different condition according to different condition, respectively correspondence.
6. by the converter oxygen gun described in claim 1/reinforced/comprehensive simplified model system of temperature schedule, characterized by further comprising following steps: if the inventory of cost optimization can not satisfied temperature requirement, then first protect outlet temperature meet considers further that Material Cost optimization.
7. converter oxygen gun/reinforced/comprehensive simplified model system operation methods of temperature schedule, it is characterised in that:
Main operation interface enters converter oxygen gun/reinforced/comprehensive simplified model interface of temperature schedule；
At converter oxygen gun/reinforced/temperature schedule comprehensive simplified model, interface carries out following operation according to actual steel grade:
Select smelting pattern；
Input terminal goal setting oxygen；
Input molten iron C, molten iron Si and ferrum temperature critical external condition；
Input molten iron carbon, molten iron silicon and ferrum temperature external condition；
Select stove seat, flow, class not, steel grade classification and special circumstances pattern；
When above-mentioned various selections carry out, model recalculates each material base amount and additional amount and predicted temperature, disposal suggestion and timesharing rifle position automatically；
Starting start button and start blowing, run rifle bitmap spectrum, rifle place value progress in time highlights.
8. by the converter oxygen gun described in claim 7/reinforced/comprehensive simplified model system operation methods of temperature schedule, it is characterised in that further comprising the steps of:
If predicted temperature is lower than setting, changing the setting of terminal oxygen amount, flow parameter, adjuvant addition is adapted to suitable target temperature accordingly automatically.
9. by the converter oxygen gun described in claim 7/reinforced/comprehensive simplified model system operation methods of temperature schedule, it is characterised in that further comprising the steps of:
If conditions present has been arranged to the limit still cannot meet tapping theoretical end point lower limit temperature, click temperature and adjust recommendation button, pop-up interface occurs, add ferrosilicon according to the ferrosilicon suggestion amount tissue of corresponding predicted temperature, and point out the cost of increase.
10. by the converter oxygen gun described in claim 8/reinforced/comprehensive simplified model system operation methods of temperature schedule, it is characterised in that further comprising the steps of:
If dolomite lacks material, select magnesite；Or without limestone, switch to without limestone；
Or, when sinter return fine or steel slag particles are without material, select " without cooling material " or individually select " without steel slag particles ".
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| CN201610195959.4A CN105714014A (en) | 2016-03-30 | 2016-03-30 | Converter oxygen gun/charging/temperature institution comprehensive simplified model system and operation method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676227A (en) * | 2017-02-08 | 2017-05-17 | 辽宁鸿盛冶金科技有限公司 | Comprehensive intelligent model of converter main operation system |
| CN107916315A (en) * | 2016-10-09 | 2018-04-17 | 上海梅山钢铁股份有限公司 | A kind of double slags of remained converter slag make steel control method automatically |
| CN108265156A (en) * | 2018-04-18 | 2018-07-10 | 辽宁鸿盛冶金科技有限公司 | Converter anthropomorphic arm charging system |
| CN109425439A (en) * | 2017-08-25 | 2019-03-05 | 宝山钢铁股份有限公司 | A kind of steel casting interface temperature drop on-line prediction system and its prediction technique |
| CN109517937A (en) * | 2019-01-10 | 2019-03-26 | 山东莱钢永锋钢铁有限公司 | A kind of converter smelting heat balance method |
| 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 |
| CN113454413A (en) * | 2019-02-19 | 2021-09-28 | 杰富意钢铁株式会社 | Operation result prediction method, learning method for learning model, operation result prediction device, and learning device for learning model |
| CN113462851A (en) * | 2021-07-19 | 2021-10-01 | 新疆八一钢铁股份有限公司 | Operation method for determining end point temperature by converter oxygen lance water temperature difference |
| CN115074479A (en) * | 2022-05-09 | 2022-09-20 | 包头钢铁（集团）有限责任公司 | Method for calculating temperature and weight of molten steel tank and scrap steel |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916315A (en) * | 2016-10-09 | 2018-04-17 | 上海梅山钢铁股份有限公司 | A kind of double slags of remained converter slag make steel control method automatically |
| CN106676227A (en) * | 2017-02-08 | 2017-05-17 | 辽宁鸿盛冶金科技有限公司 | Comprehensive intelligent model of converter main operation system |
| CN109425439B (en) * | 2017-08-25 | 2020-11-17 | 宝山钢铁股份有限公司 | Steel casting interface molten steel temperature drop online prediction system and prediction method thereof |
| CN109425439A (en) * | 2017-08-25 | 2019-03-05 | 宝山钢铁股份有限公司 | A kind of steel casting interface temperature drop on-line prediction system and its prediction technique |
| CN108265156A (en) * | 2018-04-18 | 2018-07-10 | 辽宁鸿盛冶金科技有限公司 | Converter anthropomorphic arm charging system |
| CN109517937A (en) * | 2019-01-10 | 2019-03-26 | 山东莱钢永锋钢铁有限公司 | A kind of converter smelting heat balance method |
| CN113454413A (en) * | 2019-02-19 | 2021-09-28 | 杰富意钢铁株式会社 | Operation result prediction method, learning method for learning model, operation result prediction device, and learning device for learning model |
| CN113454413B (en) * | 2019-02-19 | 2023-06-27 | 杰富意钢铁株式会社 | Operation result prediction method, learning method of learning model, operation result prediction device, and learning device of learning model |
| 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 |
| 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 |
| CN113462851A (en) * | 2021-07-19 | 2021-10-01 | 新疆八一钢铁股份有限公司 | Operation method for determining end point temperature by converter oxygen lance water temperature difference |
| CN115074479A (en) * | 2022-05-09 | 2022-09-20 | 包头钢铁（集团）有限责任公司 | Method for calculating temperature and weight of molten steel tank and scrap steel |
| CN115074479B (en) * | 2022-05-09 | 2023-12-12 | 包头钢铁（集团）有限责任公司 | Temperature weight calculation method for adding scrap steel into molten steel tank |
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