CN104060024A - Forecast method of real-time temperature of converter in the process of vanadium extraction by converter - Google Patents
Forecast method of real-time temperature of converter in the process of vanadium extraction by converter Download PDFInfo
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- CN104060024A CN104060024A CN201310639973.5A CN201310639973A CN104060024A CN 104060024 A CN104060024 A CN 104060024A CN 201310639973 A CN201310639973 A CN 201310639973A CN 104060024 A CN104060024 A CN 104060024A
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Abstract
The invention discloses a forecast method of real-time temperature of a converter in the process of vanadium extraction by the converter, and the forecast method is as follows: establishing the function relationship of linear variation of water inlet and outlet temperature difference of cooling water in a vanadium extraction oxygen gun, converter in-furnace temperature and real-time converter temperature according to the water inlet and outlet temperature difference of the cooling water in the vanadium extraction oxygen gun, converter end-point temperature and converter in-furnace temperature, and then using the function relationship to calculate and forecast the real-time converter temperature according to the water inlet and outlet real-time temperature difference of the cooling water in the vanadium extraction oxygen gun. According to the function relationship, real-time and dynamic quantitative description of converter thermal state can be achieved according to the water inlet and outlet temperature difference of the vanadium extraction oxygen gun, namely converter molten pool temperature can be accurately forecasted, improvement and automatic control of various indicators of vanadium extraction by the converter can be thoroughly implemented.
Description
Technical field
The present invention relates to vanadium extraction by converter blowing technical field, particularly, relate to the forecasting procedure of converter real time temperature in a kind of vanadium extraction by converter blowing process.
Background technology
Vanadium, as the significant by-products of v-bearing titanomagnetite smelting, has rationally utilized ore resource, can allow steel mill obtain the surplus profit except steel products simultaneously.At present domestic enterprise from vanadium titano-magnetite vanadium extraction what substantially adopt is the method for vanadium extraction by converter blowing.Vanadium extraction by converter blowing is the flow process adding between blast furnace ironmaking and converter steelmaking.The high vanadium ferroalloy water obtaining after smelting vanadium-titanium magnetite by blast furnace, delivers in converter extracting vanadium and blows with oxygen, and the oxide compound that the vanadium in molten iron is oxidized to vanadium under suitable smelting condition enters in slag, then reclaims vanadium slag and be further processed.
Vanadium extraction by converter blowing has that speed of response is fast, smelting cycle is short, v slag grade is good, production efficiency advantages of higher, but the very complicated pyrometallurgical process being simultaneously made up of the subprocess such as heating and dissolving, chemical kinetics, mass balance and thermal equilibrium of mass transfer, heat transfer, solid addition material due to this process, the factor that affects terminal composition and temperature is a lot.
The key that carbon is protected in vanadium extracting process vanadium extraction is the control of suitable temp, and Theoretical Calculation and execute-in-place practice are upper, and terminal temperature general control, at 1360-1390 DEG C, just can obtain good vanadium extraction index and half steel quality.
The superfine people of poplar, taking the production data that holds steel converter vanadium extraction as foundation, according to quality, energy conservation and thermodynamic principles, has set up the static process modeling of vanadium extraction by converter blowing.According to input values such as the consumption of each input material, temperature and compositions, can obtain the predicted value of the output parameter such as quantities received, composition of each outputting material.
The vanadium extraction by converter blowing refrigerant forecasting model that the people such as Chen Cai build adopts RBF neural network.
Zhong Zhiqiang has adopted RBF neural network vanadium extraction by converter blowing terminal model, comprises temperature model, end point carbon model, terminal vanadium model.
Yin Xijun uses the method for mathematical statistics and the multiple linear regression analysis method based on method of least squares to be optimized climbing steel converter vanadium extraction processing parameter, by data analysis, has set up and has climbed the static model that steel converter vanadium extraction is produced.
In sum, the vanadium extraction by converter blowing model of setting up at present, has obtained the effect of certain test, but because these a series of vanadium extraction models are static model, cannot meet current actual process demand.Hot metal composition, temperature fluctuation are larger, as V, Si, Mn fluctuation etc. in molten iron, adopt above-mentioned static model vanadium extraction, make the parameters such as refrigerant add-on, oxygen blow duration, terminal composition and temperature, sometimes there is very large deviation, vanadium slag quality and half steel quality are made a big impact, therefore cannot meet the actual needs of production.
Summary of the invention
The object of the invention is to cause too greatly in order to overcome the temperature deviation forecasting in existing static model vanadium extracting process the defect of vanadium slag quality and half steel Quality Down, provide a kind of can accurate forecast vanadium extraction by converter blowing process in the method for converter real time temperature.
To achieve these goals, the invention provides the forecasting procedure of converter real time temperature in a kind of vanadium extraction by converter blowing process, wherein, the method comprises: set up the funtcional relationship of the linear change of temperature head, converter charging temperature and the converter real time temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle according to temperature head, converter terminal temperature and the converter charging temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle, then adopt this funtcional relationship according to the poor calculating of real time temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle and forecast converter real time temperature.
In vanadium extraction by converter blowing process provided by the invention in the forecasting procedure of converter real time temperature, follow the tracks of and data statistic analysis by scene, set up the funtcional relationship of the linear change of temperature head, converter charging temperature and the converter real time temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle, dynamically according to the temperature head of the Inlet and outlet water of vanadium extraction oxygen gun cooling water, the hot state of converter is quantitatively described in real time,, converter real time temperature (being the real time temperature in molten bath in converter) is carried out to accurate forecast, thereby realized the raising to vanadium extraction by converter blowing indices and automatically controlled.
Other features and advantages of the present invention are described in detail the embodiment part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the linear statistical graph of implementing temperature factor K and converter charging temperature in one embodiment of the present invention;
Fig. 2 is the Statistical Comparison figure that implements to forecast in one embodiment of the present invention temperature and actual temperature; And
Fig. 3 is the linear statistical graph between temperature head and the converter terminal temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle in comparative example.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
The invention provides the forecasting procedure of converter real time temperature in a kind of vanadium extraction by converter blowing process, the method comprises: set up the funtcional relationship of the linear change of temperature head, converter charging temperature and the converter real time temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle according to temperature head, converter terminal temperature and the converter charging temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle, then adopt this funtcional relationship according to the poor calculating of real time temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle and forecast converter real time temperature.
In the present invention, in vanadium extraction oxygen rifle, the temperature head of the Inlet and outlet water of water coolant refers to the leaving water temperature(LWT) (T of water coolant in vanadium extraction oxygen rifle
water outlet) with vanadium extraction oxygen rifle in the inflow temperature (T of water coolant
enter water) temperature head; Converter charging temperature (T
0) refer to the initial temperature of molten iron in converter; Converter terminal temperature (T
eventually) refer to and smelt while end the temperature in molten bath in converter.
Preferably, the process of setting up funtcional relationship comprises the following steps:
(1) according to following formula (I) accounting temperature COEFFICIENT K,
K=(T
eventually-T
0) ÷ T
poorformula (I)
Wherein, T
eventuallyfor converter terminal temperature, T
0for converter charging temperature, K is temperature factor;
(2) by the temperature factor K obtaining in step (1) and converter charging temperature T
0between carry out linearity statistics, set up the funtcional relationship Y=a × T of linear change
0+ b, obtains the temperature factor Y revising;
(3) set up as shown in the formula the funtcional relationship shown in (II) according to the temperature factor Y revising,
T=Y × T
poor+ T
0formula (II)
Wherein, T is the converter real time temperature of forecast.
Preferably, in vanadium extraction by converter blowing process, enter stove molten iron and contain C, Si, Mn, Ti and V, taking the gross weight that enters stove molten iron as benchmark, the content of C is 4.1-4.6 % by weight, and the content of Si is 0.05-0.3 % by weight, the content of Mn is 0.1-0.5 % by weight, the content of Ti is 0.1-0.35 % by weight, and the content of V is 0.05-0.35 % by weight, and the content of Fe is 93-95.6 % by weight.
Preferably, converter charging temperature is 1150-1400 DEG C; More preferably, converter charging temperature is 1200-1320 DEG C.
Below in conjunction with embodiment, the present invention is further described.
In embodiment, the vanadium extraction by converter blowing of 116 heats is carried out to real-time follow-up, wherein, in vanadium extraction by converter blowing process, enter stove molten iron and contain C, Si, Mn, Ti, V and Fe, taking the gross weight that enters stove molten iron as benchmark, the content of C is 4.5 % by weight, and the content of Si is 0.1 % by weight, the content of Mn is 0.3 % by weight, the content of Ti is 0.25 % by weight, and the content of V is 0.15 % by weight, and the content of Fe is 94.7 % by weight.
Record and add up the temperature head T of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle
poor, converter terminal temperature T
eventuallywith converter charging temperature T
0, then set up the temperature head T of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle
poor, converter charging temperature T
eventuallywith the funtcional relationship of the linear change of converter real time temperature T, particularly, the process of setting up funtcional relationship is as follows:
(1) a nondimensional temperature factor K of definition, K represents with respect to 1 DEG C of the every variation of temperature head of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle, the temperature that converter raises.According to the temperature factor K that calculates each heat with following formula (I),
K=(T
eventually-T
0) ÷ T
poorformula (I)
Wherein, T
eventuallyfor converter terminal temperature is the tapping temperature of vanadium extraction molten iron, T
0for converter charging temperature is the charging temperature of vanadium extraction molten iron, T
poorfor the temperature head of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle;
(2) by the temperature factor K of 116 heats that obtain in step (1) and converter charging temperature T
0between carry out linearity statistics, set up the funtcional relationship Y=a × T of linear change
0+ b, obtains a=-0.1072, and b=147.44, therefore the temperature factor Y=-0.1072 × T revising
0+ 147.44, the wherein coefficient R of Y
2=0.7978, represent that as can be seen here the goodness of fit of linear regression straight line of above-mentioned funtcional relationship is higher;
(3) set up as shown in the formula the funtcional relationship shown in (II) according to the temperature factor Y revising,
T=Y × T
poor+ T
0formula (II)
Wherein, T is the converter real time temperature of forecast.
Then, adopt the funtcional relationship shown in above-mentioned formula (II) according to the poor T of real time temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle
poorcalculate and forecast converter real time temperature T.Wherein, in the vanadium extraction by converter blowing process of above-mentioned 116 heats, T
enter water, T
water outlet, T
poor, T
0, T
eventually, K, Y and T be as shown in table 1 below respectively.
Table 1
Then, the converter real time temperature T of the forecast that in the vanadium extraction by converter blowing of above-mentioned 116 heats, the method according to this invention obtains is contrasted with corresponding actual temperature, set up comparison diagram as shown in Figure 2, and set up the hit rate of modeling statistics forecast temperature, result is as shown in table 2 below.
Table 2
Can be found out can the forecast with unerring accuracy real time temperature of converter in converter extracting vanadium converting process of the method according to this invention by Fig. 2 and table 2.
Comparative example
In this comparative example, only consider that converter extracting vanadium blowing starts and the temperature head T of the vanadium extraction oxygen rifle Inlet and outlet water of end
poorwith terminal temperature T
eventuallybetween relation, the statistical relationship of foundation is as shown in Figure 3.
The temperature head T of the vanadium extraction oxygen rifle Inlet and outlet water that as seen from Figure 3, starts and finish by converter extracting vanadium blowing
poorwith terminal temperature T
eventuallyobtain the relative coefficient R of linear statistics
2be only 0.0033,0.0033 close to 0, it can be said that the goodness of fit of bright this linear regression straight line is lower, thus can not be by the temperature head T of vanadium extraction oxygen rifle Inlet and outlet water
poorthe real time temperature T of converter forecasts with unerring accuracy.
As can be seen here, in vanadium extraction by converter blowing process according to the present invention the forecasting procedure of converter real time temperature can accurate forecast vanadium extraction by converter blowing process in converter real time temperature T, thereby can realize the raising to vanadium extraction by converter blowing indices and automatically control.
Claims (5)
1. the forecasting procedure of converter real time temperature in a vanadium extraction by converter blowing process, it is characterized in that, the method comprises: set up the funtcional relationship of the linear change of temperature head, converter charging temperature and the converter real time temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle according to temperature head, converter terminal temperature and the converter charging temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle, then adopt this funtcional relationship according to the poor calculating of real time temperature of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle and forecast converter real time temperature.
2. method according to claim 1, wherein, the process of setting up funtcional relationship comprises the following steps:
(1) according to following formula (I) accounting temperature COEFFICIENT K,
K=(T
eventually-T
0) ÷ T
poorformula (I)
Wherein, T
eventuallyfor converter terminal temperature, T
0for converter charging temperature, T
poorfor the temperature head of the Inlet and outlet water of water coolant in vanadium extraction oxygen rifle, K is temperature factor;
(2) by the temperature factor K obtaining in step (1) and converter charging temperature T
0between carry out linearity statistics, set up the funtcional relationship Y=a × T of linear change
0+ b, obtains the temperature factor Y revising;
(3) set up as shown in the formula the funtcional relationship shown in (II) according to the temperature factor Y revising,
T=Y × T
poor+ T
0formula (II)
Wherein, T is the converter real time temperature of forecast.
3. method according to claim 1 and 2, wherein, in vanadium extraction by converter blowing process, enter stove molten iron and contain C, Si, Mn, Ti, V and Fe, taking the gross weight that enters stove molten iron as benchmark, the content of C is 4.1-4.6 % by weight, the content of Si is 0.05-0.3 % by weight, and the content of Mn is 0.1-0.5 % by weight, and the content of Ti is 0.1-0.35 % by weight, the content of V is 0.05-0.35 % by weight, and the content of Fe is 93-95.6 % by weight.
4. method according to claim 1 and 2, wherein, converter charging temperature is 1150-1400 DEG C.
5. method according to claim 4, wherein, converter charging temperature is 1200-1320 DEG C.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048117A (en) * | 2016-08-12 | 2016-10-26 | 新兴铸管股份有限公司 | Method for simply determining furnace temperature of iron making blast furnace |
| CN112159882A (en) * | 2020-09-17 | 2021-01-01 | 德龙钢铁有限公司 | Oxygen lance cooling method capable of avoiding energy waste |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476014A (en) * | 2009-02-06 | 2009-07-08 | 北京北科创新科技发展有限公司 | Whole process dynamic monitoring method for converter steel melting |
| CN102127614A (en) * | 2011-01-01 | 2011-07-20 | 河北钢铁股份有限公司承德分公司 | Control method for vanadium extraction by converter for removing vanadium and holding carbon |
-
2013
- 2013-12-02 CN CN201310639973.5A patent/CN104060024B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476014A (en) * | 2009-02-06 | 2009-07-08 | 北京北科创新科技发展有限公司 | Whole process dynamic monitoring method for converter steel melting |
| CN102127614A (en) * | 2011-01-01 | 2011-07-20 | 河北钢铁股份有限公司承德分公司 | Control method for vanadium extraction by converter for removing vanadium and holding carbon |
Non-Patent Citations (1)
| Title |
|---|
| 朱新华: "基于人工神经网络的转炉冶炼终点控制模型的优化", 《中国优秀硕士学位论文全文数据库（工程科技I辑）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048117A (en) * | 2016-08-12 | 2016-10-26 | 新兴铸管股份有限公司 | Method for simply determining furnace temperature of iron making blast furnace |
| CN112159882A (en) * | 2020-09-17 | 2021-01-01 | 德龙钢铁有限公司 | Oxygen lance cooling method capable of avoiding energy waste |
| 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 |
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