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Blast furnace distribution process distribution matrix optimization method and system

A technology of material distribution matrix and charge, which is applied in the field of optimization method and system of material distribution matrix in the process of blast furnace material distribution, can solve the problems such as the inability to realize the adjustment of material distribution matrix, and achieve the effect of improving the utilization rate of raw materials and rationally distributing them

Active Publication Date: 2017-06-06
NORTHEASTERN UNIV
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Problems solved by technology

However, this method is still unable to guide the operator to adjust the cloth matrix, so that the shape of the material surface under the adjusted cloth matrix can reach the ideal material surface shape

Method used

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  • Blast furnace distribution process distribution matrix optimization method and system
  • Blast furnace distribution process distribution matrix optimization method and system
  • Blast furnace distribution process distribution matrix optimization method and system

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Embodiment Construction

[0055] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0056] In this embodiment, the method and system of the present invention are implemented for the bell-less blast furnace with tanks in series. The charge goes to the upper tank, the lower tank, the central throat and the rotary chute sequentially through the conveyor belt, and finally the charge is distributed to the inside of the furnace throat. The distribution matrix optimization method of the blast furnace distribution process, such as Figure 8 shown, including:

[0057] Step 1. Set the ideal material surface shape in combination with the feeding information and current furnace conditions;

[0058] The material surface shape of the furnace throat position of the bellless blast furnace in series tanks can ensure good gas flow distribution and raw material utilization rate under the ideal material surface. Usually, the ide...

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Abstract

The invention provides a blast furnace distribution process distribution matrix optimization method and a blast furnace distribution process distribution matrix optimization system. The method comprises the following steps: an ideal burden surface profile is set; by taking minimizing the deviation between a burden surface profile of a furnace burden in the next batch and the ideal burden surface profile as an objective, a distribution matrix is optimized; and the optimal distribution matrix obtained through optimization acts as the distribution matrix of the furnace burden in the next batch. The system comprises a setting unit, an optimization unit and an output unit. A basis is provided for the adjustment of the distribution matrix of a blast furnace, and operating personnel can adjust the distribution matrix in distribution operation of the blast furnace according to the distribution matrix obtained through the optimization by the method and the system. The burden surface profile under the distribution matrix optimized by the method and the system is close to the ideal burden surface profile. A blast furnace gas flow is distributed reasonably, a utilization ratio of a raw material is raised, and the effects of high yield and high efficiency of the blast furnace are achieved.

Description

technical field [0001] The invention belongs to the technical field of automatic control of blast furnace smelting, and in particular relates to a method and system for optimizing a material distribution matrix in a blast furnace material distribution process. Background technique [0002] The material distribution operation is one of the four basic operating systems of blast furnace ironmaking, which determines the shape of the material surface and the layered distribution of the charge inside the blast furnace. It directly affects the gas flow distribution and gas utilization rate in the upper part of the blast furnace. Adjusting the shape of the material surface through the material distribution system can make the gas flow inside the blast furnace reasonably distributed, increase the utilization rate of gas, and achieve the effect of high production and high efficiency, which has far-reaching significance for the stability and smooth operation of the blast furnace. Howe...

Claims

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Application Information

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IPC IPC(8): C21B5/00C21B7/20G06N3/00
CPCC21B5/006C21B7/20C21B2300/04G06N3/006
Inventor 周平刘记平尤磊
Owner NORTHEASTERN UNIV
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