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Efficient converter protection method for predicting converter final slag viscosity model

A final slag and converter technology, which is applied in the field of efficient furnace protection for predicting the final slag viscosity model of the converter, can solve the problems of multiple auxiliary equipment, high investment cost, and serious dependence on equipment precision, so as to avoid the interference of human factors and shorten the splashing time. Slag time, the effect of reducing blindness

Pending Publication Date: 2020-04-10
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this system requires more and more complicated auxiliary equipment, the investment cost is relatively large, and it is heavily dependent on the precision of the equipment; and it cannot stably control the viscosity of the slag at the end of the converter
[0006] To sum up, the above two methods are not suitable for the purpose of high-efficiency slag splashing and improving converter operation rate under the current fast-paced production mode

Method used

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  • Efficient converter protection method for predicting converter final slag viscosity model
  • Efficient converter protection method for predicting converter final slag viscosity model
  • Efficient converter protection method for predicting converter final slag viscosity model

Examples

Experimental program
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Effect test

Embodiment 1

[0049] like Figure 1-Figure 3 As shown, a high-efficiency furnace protection method for predicting the final slag viscosity model of the converter in this embodiment is carried out according to the following steps. The data acquisition module 11 of the prediction model collects the data information of the steel plant feeding system in real time and transmits it to the calculation processing module 21. The information processed by the calculation processing module 21 is classified and processed by the judgment processing module 31 to obtain different output results, and is output by the output module 41 to obtain a slag splashing scheme.

[0050] The data acquisition module 11 of this embodiment is used to exchange information and data with the secondary feeding system of the steel plant. The collected information includes the composition and temperature of molten iron, the amount of metal loaded and the amount of slagging auxiliary materials added. The auxiliary materials used...

Embodiment 2

[0085] Using the above-mentioned high-efficiency furnace protection method for predicting the final slag viscosity model of the converter, a successful test was carried out in the Maanshan Iron and Steel Co.

[0086] S1, first exchange data through the data acquisition module 11 and the secondary system of the steel plant, and collect information including molten iron composition, temperature, metal loading and slag making auxiliary material addition, as shown in Table 3 below, and transmit the data in signal form to next level processing;

[0087] Table 3 Data collected by the secondary system

[0088]

[0089] S2. The calculation processing module 21 receives the upper-level transmission data, performs processing, selects and searches in the database module 220 by establishing a mathematical model, obtains the final slag viscosity of the converter, and classifies and processes it through the judgment processing module 31 to give the furnace Whether it is necessary to upgra...

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Abstract

The invention discloses an efficient converter protection method for predicting a converter final slag viscosity model, and belongs to the field of converter steelmaking. The method comprises the following steps: data of a secondary charging system of a steel mill is collected in real time through a data acquisition module and the data is transmitted to a calculation processing module; the data processed by the calculation processing module is classified by the judgment processing module to obtain different output results; and finally, an output module is used for controlling a secondary system, human interference is reduced, the smelting time is shortened, and automatic and efficient furnace protection is achieved. According to a system, the final slag viscosity of the converter can be calculated through the prediction model, whether the characteristics of the final slag meet the requirements of slag splashing furnace protection or not can be obtained in real time, the variety and addition amount of a modifier and a matched slag splashing scheme are given through processing and calculation, and blindness and randomness of modification are reduced. According to the efficient converter protection method, the slag splashing time can be shortened, the slag splashing furnace protection effect is improved, and the converter operation rate is increased.

Description

technical field [0001] The invention relates to the technical field of converter steelmaking, in particular to a high-efficiency furnace protection method for predicting the final slag viscosity model of the converter. Background technique [0002] Slag plays an important role in the iron and steel smelting process, such as smelting medium, slag splashing and furnace protection raw materials, etc. The viscosity of liquid slag has a direct impact on the smelting process and slag splashing effect. In the steelmaking production process, the stability of the converter process currently has the most and most complicated problems, which leads to the uncontrollability of the converter furnace age and furnace type maintenance. It is precisely these two issues that are of great concern to the majority of steelmakers. question. Viscosity is one of the important properties of slag, and slag with different viscosity will directly affect the effect of slag splashing. The viscosity of t...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/04C21C5/28
CPCG06Q10/04G06Q50/04C21C5/28C21C2300/06Y02P90/30Y02P10/25
Inventor 吴婷范鼎东陶素芬蒲雪峰邓爱军
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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