Model Control Method of Heating Furnace Temperature

A technology of model control and heating furnace, applied in the direction of temperature control, adaptive control, general control system, etc., can solve the problems of energy waste, abnormal heating quality of products, abnormal measurement accuracy of furnace temperature, etc.

Active Publication Date: 2016-04-27
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a model control method for the temperature of the heating furnace. The control method combines the temperature information in the furnace with the gas flow information, and can effectively alleviate the abnormal measurement accuracy of the furnace temperature caused by the change of the thermal load of the heating furnace. , Abnormal product heating quality, energy waste, etc.

Method used

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  • Model Control Method of Heating Furnace Temperature
  • Model Control Method of Heating Furnace Temperature
  • Model Control Method of Heating Furnace Temperature

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Experimental program
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Effect test

Embodiment 1

[0040] A kind of model control method of heating furnace temperature, comprises the following steps:

[0041] Step 1. First, based on the actual production performance data, establish a gas statistical sample for each single product in the heating furnace under a stable production rhythm, and match the product index with the gas statistical sample one by one to represent the best furnace condition in the actual production process; content as follows:

[0042]

[0043] Stable production rhythm for a single product: The steel grades and specifications of the products heated in the heating furnace are exactly the same, the product index is i, and the steel pumping rhythm of the heating furnace is stable, and the unique index corresponding to the specific steel grade and specific specification;

[0044] The actual temperature of the single product with index i at the end of the jth control section under the stable production state, which is obtained by tracking the temperatur...

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Abstract

The invention relates to the field of metallurgical production, in particular to a method for controlling the temperature of a heating furnace. A model control method for heating furnace temperature. Firstly, based on the actual production data, a statistical sample of gas under the stable production rhythm of each single product in the heating furnace is established; then a linear distribution curve of furnace temperature and a product temperature tracking model are established and combined parameters and product types in the furnace to obtain the initial set value of the furnace temperature in a certain control section; then calculate the gas flow standard value and gas flow calculation value of the control section, and compare it with the gas flow measured value of the control section to obtain the control The temperature correction adjustment factor of the section, and finally the final set value of the furnace temperature of the control section is calculated by using the temperature correction adjustment factor. The invention can effectively alleviate problems such as abnormal furnace temperature measurement accuracy, abnormal product heating quality, and energy waste caused by changes in the heat load of the heating furnace, and is a concrete embodiment of refined control of industrial production and environmental management.

Description

technical field [0001] The invention relates to the field of metallurgical production, in particular to a method for controlling the temperature of a heating furnace. Background technique [0002] The combustion control of the heating furnace is ultimately to realize the reasonable distribution of gas flow in each control section, and to determine that the heat load of each control section meets the requirements of product heating quality. In the process control of the heating furnace, which is increasingly automated, the automatic adjustment of the gas flow is generally achieved by controlling the furnace temperature. With the expansion of product specifications, the market's requirements for product quality are increasing, and higher requirements are put forward for the fine control of the production process of the heating furnace. Due to the influence of heating furnace equipment characteristics, combustion control methods and other factors, when there are many product s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D23/00G05B13/04
Inventor 邓龙吕立华
Owner BAOSHAN IRON & STEEL CO LTD
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