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Iron making ingredient and blast-furnace process parameter integrated optimization method

A technology of process parameters and optimization methods, applied in steel manufacturing process, blast furnace, blast furnace details, etc., can solve problems such as no batching and integrated optimization of blast furnace process parameters

Inactive Publication Date: 2020-04-10
BAISE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Integral optimization of batching and blast furnace process parameters to obtain maximum benefits

Method used

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  • Iron making ingredient and blast-furnace process parameter integrated optimization method
  • Iron making ingredient and blast-furnace process parameter integrated optimization method
  • Iron making ingredient and blast-furnace process parameter integrated optimization method

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0005] The object of the present invention is to realize through following specific implementation mode:

[0006] (1) The original ironmaking constraints

[0007] (2) Blast furnace process parameters affect ironmaking fuel ratio and production process experience

[0008] Considering blast furnace process parameters include: molten iron containing Si, gas CO 2 Content, wind temperature, blast humidity, oxygen enrichment rate, wind shutdown rate, top pressure, furnace top temperature factors.

[0009] (3) Integrated optimization of ingredients, seeking to maximize ironmaking benefits

[0010] According to the process experience, the fuel ratio and output of ironmaking are corrected, and they are added to the low-cost optimization ingredients of ironmaking, and the ingredients are optimized in an integrated way to maximize the benefits of ironmaking.

[0011] Specific implementation cases

Embodiment 1

[0013] (1) The original ironmaking constraints

[0014] The data and constraints such as the chemical composition of the sintering batching are shown in Table 1, and the chemical composition of the pellet batching is shown in Table 2

[0015] Table 1 Data and constraint conditions such as chemical composition of sintering ingredients

[0016]

[0017] Table 2 Chemical Composition of Pellet Ingredients

[0018]

[0019] The data and constraints such as the chemical composition of ironmaking ingredients are shown in Table 3.

[0020] Table 3 Chemical composition and other data and constraints of ironmaking ingredients

[0021]

[0022]

[0023] (2) Blast furnace process parameterization affects ironmaking fuel ratio and production process experience

[0024] The process experience of blast furnace process parameters affecting ironmaking fuel ratio and output is shown in Table 4.

[0025] Table 4 Factors affecting ironmaking fuel ratio and output

[0026]

[0...

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Abstract

The invention discloses an iron making ingredient and blast-furnace process parameter integrated optimization method, and belongs to the field of ingredients for ferrous metallurgical before-iron-making systems. The problems that blast-furnace process parameters including molten iron containing Si, a gas CO2 content, an air temperature, blast air humidity, an oxygen enrichment rate, a damping-downrate, top pressure and a furnace-top temperature change influence an iron making fuel ratio, a yield and a benefit are not considered in original ingredients. According to the method, the details that the blast-furnace process parameters including the molten iron containing Si, the gas CO2 content, the air temperature, the blast air humidity, the oxygen enrichment rate, the damping-down rate, thetop pressure and the furnace-top temperature change influence the fuel ratio and the yield are considered; the iron making fuel ratio and the yield are corrected according to process experience, andare added to iron making low-cost optimized ingredients; the ingredients are optimized in an integrated manner; and the iron making benefit maximization is sought.

Description

technical field [0001] The invention belongs to the field of iron and steel metallurgy pre-iron system batching. Background technique [0002] The pre-iron system of iron and steel metallurgy includes sintering and ironmaking. When optimizing the batching of iron and steel metallurgy and ironmaking, the chemical composition of the constraints, the range of raw material ratios, and the low cost of raw material inventory are considered to optimize the batching. Basically, the fuel ratio and output of ironmaking are given, but only The cost of ironmaking after batching is considered, and the impact of changes in blast furnace process parameters on ironmaking fuel ratio, output, and benefits is not considered. [0003] CN104593532A The invention of "a furnace charge optimization method for an ironmaking system" relates to a furnace charge optimization method, in particular to a comprehensive ratio optimization method for sinter and blast furnace charge. A six-in-one furnace cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B5/00G06Q10/04G06Q10/06G06Q50/04
CPCC21B5/008C21B2300/04G06Q10/04G06Q10/06313G06Q50/04Y02P90/30
Inventor 经文波燕云程
Owner BAISE UNIV