A method for establishing a comprehensive focal ratio prediction model and predicting the comprehensive focal ratio
A technology for predicting models and focal ratios, applied in instrumentation, design optimization/simulation, calculation, etc., can solve problems such as nonlinearity, complex mechanism, strong coupling, etc., and achieve the effect of ensuring accuracy and rationality, overcoming coupling problems, and wide application
Active Publication Date: 2019-12-10
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology
In addition, in the sintering production process, coke powder is the main energy source of the sintering process, and it is impossible to improve the utilization rate of coke powder on the premise of ensuring the quality and output of sintering ore. Moreover, the sintering process involves batching, granulation, distribution, sintering ignition and Sintering end point and other processes, and the process has the characteristics of nonlinear, strong coupling, complex mechanism and long process flow
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[0061] Please refer to the attached image 3 , This embodiment includes the following steps:
[0062] (1) The comprehensive coke ratio is the amount of coke converted into the fuel consumed per ton of molten iron. Improving the utilization rate of coke is the prerequisite for ensuring the output and quality of sintering. Therefore, the comprehensive coke ratio is selected as an indicator to measure the carbon efficiency of the sintering process. , And calculate the comprehensive focal ratio, the calculation formula of the comprehensive focal ratio is as follows:
[0063]
[0064]
[0065] In the formula: η represents the comprehensive coke ratio (Kg / t), w c Represents the coke powder ratio (%), p represents the yield (%), q represents the burnout rate (%), Q D Represents the sintering large-scale mineralization output (Kg / h), Q X Indicates the small sintered mineralization output (Kg / h), Q F Indicates the amount of sintered return ore (Kg / h), Q P Indicates the amount of sintered pri...
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The invention discloses a method for building a comprehensive coke ratio predicting model and predicting a comprehensive coke ratio. The method includes: selecting the comprehensive coke ratio to serve as the index for measuring the carbon efficiency of a sintering process; determining sintering parameters affecting the comprehensive coke ratio through the mechanism analysis of the sintering process, using a main component analysis method to perform data dimension reduction and recombination on the sintering parameters to obtain a main component variable, building the comprehensive coke ratio predicting model on the basis of the main component variable, analyzing the sintering parameters of to-be-sintered ore, converting the sintering parameters into the a main component variable, and inputting the main component variable of the to-be-sintered ore into the comprehensive coke ratio predicting model to obtain an output variable, namely the comprehensive coke ratio. The method has the advantages that the coupling problems among the sintering parameters can be solved, a foundation is laid for the carbon efficiency optimization of the sintering process, the comprehensive coke ratio of the sintering process can be precisely predicted, and the production requirements of an actual sintering process are satisfied.
Description
Technical field [0001] The invention relates to the field of energy saving and consumption reduction in the production of steel sintering process, in particular to a method for establishing a comprehensive coke ratio prediction model and predicting the comprehensive coke ratio. Background technique [0002] The steel industry is one of the pillar industries of the national economy, and the development of the steel industry will also determine the development of my country's national economy. With the rapid development of the steel industry, the energy consumption and environmental problems it brings have become increasingly prominent. The sintering process is also an important part of the ironmaking process. The sintered ore produced in the process is the main raw material for blast furnace ironmaking. The sintering process is also the largest energy-consuming process in the steel production process except for the blast furnace ironmaking process. Its energy consumption accounts ...
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IPC IPC(8): G06F17/50C22B1/16
CPCC22B1/16G06F30/20
Inventor 吴敏陈鑫曹卫华胡杰杜胜周凯龙
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)