Functions of Reheating Furnace Control System of Rolling Mill

Reheating Furnace Control System

Functions of Reheating Furnace Control System of Rolling Mill

In order to make the statistical processing and high efficiency for quality operation management, a special database is compiled. The combustion control is carried out according to the secondary temperature distribution heat transfer model of the slab section. In rough and finish rolling, it is calculated based on the rolling quantity of each pass, The automatic rolling line is controlled by the rolling mill, the plane shape is controlled, and the accelerated cooling is determined according to the heating rolling temperature and processing history, but the dynamic cooling conditions are controlled. 

The functions of the heating furnace control system are as follows:

(l) Calculate the slab temperature in the furnace. Measure the slab temperature at the inlet of the heating furnace, and calculate the slab surface and internal temperature with the heat transfer model according to the corresponding heating history.

(2) Combustion control. According to the estimated value of the above model, the allowable temperature of the national standard tapping temperature ice printing part is maintained, so as to determine the set temperature of each section of the furnace. Lower combustion DDC control adopts setting: Overview of control technology of thick plate rolling mill point control.

(3) Control. The measured slab temperature after tapping is compared with the slab temperature set by the computer, so as to modify the temperature calculation model in the furnace and improve the calculation accuracy. In addition, the charging and tapping operations of the heating furnace are automated, and the extracted slab is automatically transported to the rolling mill.

Relevant Control of Rolling Mill

The purpose of rolling control is to minimize the deviation of steel plate processing dimension f (plate thickness, plate width, and plate length) and ensure good flatness, convexity, and plane shape. Among them, plate thickness control has a long history. From the initial introduction of the process control system to the rolling specification calculation and rolling mill adjustment control based on the rolling theory, good plate thickness accuracy is realized. In order to suppress the change of plate thickness, hydraulic AGC and new strain pressure sensors are used to greatly improve the control accuracy. The width gauge installed near the rolling mill is used to control the total reduction of wide rolling to control the plate width. During forming rolling, the change of plate width is controlled by full reduction quantification and feedforward control of plate thickness. In particular, before and after widespread rolling, the rolling amount of edge rolling is automatically set according to the rolling conditions such as widespread ratio and plate thickness. It is very effective to improve the shape of the plate.

Flatness is based on the principle of a certain convexity ratio during finish rolling. The wide and thick plate can be effectively controlled by using the unique method of determining the rolling specification. In addition, a mathematical model for the online calculation of plate crown is developed. Using this model to make the reduction curve during finish rolling can reduce the crown of the finished plate.

Rapid cooling control has completed the rapid cooling method called DAC dynamic, which produces thick steel plates for shipbuilding and Haiyuan structural parts. In order to effectively use the processing heat treatment process of controlled rolling and DAC, its control technology is indispensable. Therefore, while developing DAC equipment, its control technology is also developed. This plays an important role in stabilizing product quality and rationalizing cost.


Please contact stella@hanrm.com for a quotation.
And free send inquiry to us.
Email: stella@hanrm.com   stellarollingmill@gmail.com
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reheating furnace


We are the manufacturer of Steel Rolling mills, Wire Rod Mills, TMT Rebar Mills, Electric Arc Furnaces, Flying shears, Continuous Casting machines, and spare parts. we can supply designing, manufacturing, installation and commissioning of the equipment with "turn-key" service. We can also design, manufacture and revamp other non-standard equipment according to the requirements of users. Free mail to Stella@hanrm.com for your rolling mill plant Solution  Whatsapp/Wechat:+8615877652925 https://www.hanrm.com/ https://www.electricarcfurnaces.com/ https://www.hanmetallurgy.com/ https://www.rollingmillmachine.com/

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