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Heating furnace energy-saving control method based on strip steel mechanical property forecasting model

A forecasting model and energy-saving control technology, applied in heat treatment process control, heat treatment furnaces, furnaces, etc., can solve problems such as large gas consumption, and achieve the effect of reducing the furnace temperature, covering a wide range of steel types, and reducing energy consumption per unit product

Active Publication Date: 2012-07-11
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As we all know, the heating furnace is a high-energy-consuming equipment, and the heating process will consume a lot of gas

Method used

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  • Heating furnace energy-saving control method based on strip steel mechanical property forecasting model
  • Heating furnace energy-saving control method based on strip steel mechanical property forecasting model
  • Heating furnace energy-saving control method based on strip steel mechanical property forecasting model

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Experimental program
Comparison scheme
Effect test

Embodiment

[0164] In order to illustrate the specific application of the technical invention, the specific implementation steps of the present invention will be introduced below by taking the hot rolling production line of a certain steel plant as an example.

[0165] According to the form of the mechanical performance prediction model given above, based on the actual production data, the model coefficients are determined by the method of statistical regression, and the composition range of the strip steel is as follows:

[0166] serial number

ingredient name

Content upper limit (%)

1.

the carbon

0.22

2.

Manganese

2

3.

phosphorus

0.053

4.

nitrogen

0.01

5.

silicon

0.42

6.

sulfur

0.03

7.

titanium

0.12

8.

alum

0.002

9.

niobium

0.002

[0167] Table 2 Range of chemical compositions in the data used for m...

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PUM

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Abstract

A heating furnace energy-saving control method based on a strip steel mechanical property forecasting model belongs to the field of process control and comprises the following steps: controlling the furnace temperature of a heating furnace on the basis of a process control computer, and establishing an industrial forecasting model for mechanical properties of a hot-rolled strip steel; before an ingot blank enters the heating furnace, forecasting the mechanical properties of the rolled strip steel according to chemical components and preset technical parameters; if the forecasted values of the mechanical properties are greater than the target values of the mechanical properties, optimizing the strip steel discharging technical temperature; and on the premise of ensuring the mechanical properties of the strip steel and not going against other necessary constraints, reducing the fuel gas consumption of the heating furnace by reducing the discharging temperature, so that the strip steel discharging technical temperature is optimized and controlled, and the fuel gas consumption of the heating furnace or the energy consumption of a unit product is reduced. The control method has a wide steel variety adapting range and can be widely applied to the field of temperature control of heating furnaces in slab blank hot rolling production lines.

Description

technical field [0001] The invention belongs to the field of process control, in particular to a temperature control method for a heating furnace of a slab hot rolling production line. Background technique [0002] For conventional hot rolling production, heating the slab with a heating furnace is a necessary condition to meet the rolling process requirements and product performance. [0003] The process control of the heating furnace is to adjust the thermal history curve of each section in the heating furnace so that the billet reaches the target temperature specified by the process when it is released from the furnace. [0004] The furnace temperature not only directly affects the rough rolling temperature, but also has a direct impact on the mechanical properties of the product. [0005] Usually, the furnace temperature is given by the craftsman, and the set value is stored in the database of the control computer. In the actual hot rolling production, the control syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D11/00C21D9/54C21D8/02C21D1/34
Inventor 张群亮郭朝晖
Owner BAOSHAN IRON & STEEL CO LTD
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