Modification method of billet temperature tracking model for reheating furnace

A technology for tracking models and heating furnaces, applied to furnace types, heat treatment furnaces, furnaces, etc., can solve the problems of reducing model calculation accuracy and complexity, achieve accurate temperature change trends, and solve the effects of low calculation accuracy

Active Publication Date: 2018-12-11
WISDRI WUHAN WIS IND FURNACE
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Problems solved by technology

[0004] The mathematical model of the heating furnace is a theoretical statistical mathematical model established on the basis of thermal engineering theory. Due to the extremely complex heating process and heat transfer mechanism, it is necessary to make necessary simplifications and assumptions when designing the model so that the actual heating process can be abstracted. The mathematical language is described, but it will also reduce the calculation accuracy of the model

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  • Modification method of billet temperature tracking model for reheating furnace
  • Modification method of billet temperature tracking model for reheating furnace
  • Modification method of billet temperature tracking model for reheating furnace

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[0050] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] Such as figure 2 As shown, a heating furnace billet temperature tracking model correction method includes the following steps:

[0052] 1) Use the black box high temperature test technology to track and measure the temperature change trend of the normal temperature billet during the heating process in the heating furnace, and record the data of the billet temperature and furnace gas temperature changing with time during the test;

[0053] 2) Process the test data to form a trend diagram of the temperature of the upper and lower surface of the test billet, the temperature of the core of the billet, the temperature of ...

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Abstract

The invention discloses a modification method of a billet temperature tracking model for a reheating furnace. The method comprises the following steps: tracking measurement and recording the data of billet temperature and furnace temperature variation with time in the testing process; processing the test data to extract reference data for calculating a reference value of the radiation coefficient;in combination with the reference data, iteratively calculating the reference value of radiation coefficient of each furnace zone; in combination with the production history data of steel billet, revising the reference value of radiation coefficient; and classifying and saving a correction result to the correction coefficient table. The method of the invention can improve the calculation precision of the billet temperature tracking model, so that the revised model can accurately simulate the heating process of the billet in the furnace, and the method has important significance for improvingthe temperature control precision of the heating furnace.

Description

technical field [0001] The invention relates to metallurgical automation technology, in particular to a method for correcting a heating furnace billet temperature tracking model. Background technique [0002] The billet temperature tracking model is a thermal mathematical model, which is used to simulate and calculate the change of the temperature field of the billet when it is heated in the heating furnace. Such as figure 1 As shown, the mathematical model technology of the heating furnace is mainly composed of functional models such as billet heating curve optimization, billet temperature tracking calculation, furnace temperature setting value calculation, combustion optimization control, and self-adaptive correction. The billet temperature field data calculated by the temperature tracking model will be transmitted to the furnace temperature setting value calculation model to calculate the furnace temperature setting value, and then the furnace temperature setting value w...

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Application Information

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IPC IPC(8): G06F17/50C21D9/70
CPCC21D9/70G06F2119/08G06F30/20
Inventor 王晓亮周明丁克杨胜李卫杰
Owner WISDRI WUHAN WIS IND FURNACE
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