Simulation method used for predicting heat condition parameter of high-temperature waste gas circulation sintering process

A simulation method and technology of state parameters, which are applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as low accuracy, low efficiency, and long simulation time.

Active Publication Date: 2016-04-06
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology

It is used to solve the problems of low accuracy of existing simulation methods, long simulation time and low efficiency

Method used

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  • Simulation method used for predicting heat condition parameter of high-temperature waste gas circulation sintering process
  • Simulation method used for predicting heat condition parameter of high-temperature waste gas circulation sintering process
  • Simulation method used for predicting heat condition parameter of high-temperature waste gas circulation sintering process

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Embodiment Construction

[0097] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0098] The present invention first establishes the physical model of flow / heat transfer / combustion and chemical reaction process in the sintering machine, and establishes the "mathematical model of flow / heat transfer / combustion and chemical reaction process in the sintering machine" on the basis of necessary simplified assumptions. Finally, the established mathematical model is verified and adjusted by actually measuring the temperature of each layer in the sintering cake, and the control parameters and process parameters in the actual sintering process are comprehensively analyzed and optimized.

[0099] In the past, the sintered material layer model was established as a macroscopic mathematical model, and the treatment of the heat of reaction in the model was too rough, so the calculation accuracy was slightly insufficient. To solve this pro...

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Abstract

The invention relates to a simulation method used for predicting the heat condition parameter of a high-temperature waste gas circulation sintering process. The simulation method adopts the following technical scheme that a microscopic single-particle micro-unit mechanism model is established, a macroscopic material layer mathematic model of the high-temperature waste gas circulation sintering process is established on the basis of the microscopic single-particle micro-unit mechanism model, heat effects, including water migration, limestone decomposition, coke powder burning and the like, which obviously affect a sintering process are solved through the microscopic mechanism model, a calculation result is weighted as the mass resource item and the heat source item of the macroscopic model so as to more approach to a practical sintering process on an aspect of the mechanism, and therefore, simulation precision is improved. The simulation method is used for solving the problems of low accuracy, long simulation time and low efficiency of a traditional simulation way.

Description

technical field [0001] The invention relates to a sintering process, in particular to a numerical simulation method for predicting thermal state parameters of a high-temperature waste gas circulation sintering process. Background technique [0002] Sintering is one of the main production methods of artificial rich iron ore. At present, more than 90% of the man-made iron-rich ores in the world are obtained through sintering. The basic process is: the prepared mixture is ignited on the sintering machine, and the fixed carbon in the mixture is burned through the action of draft, so that High temperature is generated, the mixture partially softens or melts, a series of chemical reactions occur, and a certain amount of liquid phase is generated. Subsequently, due to the temperature drop, the liquid phase cools and solidifies into blocks, and after crushing and cooling, sintered ore is obtained. [0003] The quality of sinter ore directly affects the quality of blast furnace pro...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06F19/00C22B1/16
Inventor 李咸伟崔健赵晓岩吕立华石磊王如意
Owner BAOSHAN IRON & STEEL CO LTD
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