Method for drawing metallurgical performance evolution graphs of fuel in COREX gasification furnaces

A technology of gasifier and internal fuel, which is applied in the direction of instruments, electrical digital data processing, special data processing applications, etc., to achieve the effect of optimizing utilization and solving comparison problems

Active Publication Date: 2018-01-30
WUHAN UNIV OF SCI & TECH
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Problems solved by technology

[0003] The invention provides a method for drawing the metallurgical performance evolution diagram of the fuel in the COREX gasifier aiming at analyzing the consumption process of different block fuels in the gasifier and optimizing their use

Method used

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  • Method for drawing metallurgical performance evolution graphs of fuel in COREX gasification furnaces
  • Method for drawing metallurgical performance evolution graphs of fuel in COREX gasification furnaces
  • Method for drawing metallurgical performance evolution graphs of fuel in COREX gasification furnaces

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Embodiment approach

[0033] Drawing of metallurgical properties evolution map of bulk fuel in COREX gasifier

[0034]Step 1. Based on the design parameters of the COREX gasifier, the basic performance of the raw fuel and the operating parameters of the gasifier, CFD simulation software is used for modeling and numerical simulation to generate the change curve of the temperature of the fuel material column in the gasifier with the height of the fuel material column, Generate the change curve of the content of each component in the atmosphere in the gasifier with the height of the fuel material column, generate the pressure change curve of the cross-section of the fuel material column at different heights in the gasifier with the height of the fuel material column, and obtain the fuel material column Correspondence between the height value and the CFD simulated temperature value of the fuel column at the corresponding height, the CFD simulated content value of each component in the gasifier atmospher...

Embodiment

[0048] The technical route of this embodiment is as follows: figure 1 shown. First, determine the working environment of the block fuel, then perform multi-region block fuel performance testing, and finally draw the block fuel height displacement-performance evolution diagram.

[0049] Based on the design parameters of the COREX gasifier, the basic performance of the raw material and the operating parameters of the gasifier, CFD simulation software was used for modeling and numerical simulation, and the temperature change curve of the charge inside the gasifier and the distribution of the atmosphere in the gasifier were obtained as follows: figure 2 with image 3 shown.

[0050] A multifunctional high-temperature furnace was used to simulate the temperature, atmosphere, and pressure changes of the block fuel in the process of descending in the gasifier, and samples were taken to analyze the metallurgical performance results (thermal stability, mechanical strength, and react...

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Abstract

The invention belongs to the technical field of non-blast furnace iron making, and particularly relates to a method for drawing metallurgical performance evolution graphs of fuel in COREX gasificationfurnaces. The method includes steps of 1), establishing height-temperature relations of fuel columns by means of CFD (computational fluid dynamics) simulation software modeling and numerical value emulation on the basis of design parameters of the COREX gasification furnaces, basic performance of crude fuel and operating parameters of gasification furnaces; 2), establishing corresponding relations between temperature values of simulation lumped fuel under the conditions of height values and metallurgical performance numerical values of the lumped fuel and further drawing temperature-performance relation curves of the lumped fuel; 3), carrying out mapping association on height-temperature relation curves of the fuel columns and the temperature-performance relation curves of the lumped fueland acquiring height displacement-performance evolution graphs of the lumped fuel by the aid of data processing software and drawing software which are combined with each other. The method has the advantages that performance evolution of different types of lumped fuel in the gasification furnaces can be pertinently systematically analyzed by the aid of the method, the method is beneficial to scientifically recommending adding proportions and utilization modes for the lumped fuel, blast furnaces can assuredly stably smoothly run, and different types of fuel can be optimally utilized.

Description

technical field [0001] The invention belongs to the technical field of non-blast furnace ironmaking, and in particular relates to a drawing method of a fuel metallurgical performance evolution diagram in a COREX gasification furnace. Background technique [0002] The blast furnace ironmaking process has become increasingly mature after hundreds of years of development, but from the perspective of the entire iron and steel process flow, the ironmaking process is still the link with the highest energy consumption and the largest emissions, especially the coking process and sintering process in the system. main source of environmental pollution. In order to get rid of the reliance on metallurgical coke in the ironmaking process, replacing the coking process and sintering process with the highest pollution and energy consumption is the fundamental driving force for the development of non-blast furnace ironmaking. After years of exploration and practice, the COREX ironmaking pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B13/00G06F17/50
Inventor 徐润生王炜薛正良
Owner WUHAN UNIV OF SCI & TECH
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