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Automatic control system for precise tapping of heating furnace and control method

An automatic control system and heating furnace technology, which is applied in the direction of furnace control devices, lighting and heating equipment, furnaces, etc., can solve the problems of unstable billet supply rhythm, ineffective production capacity, and high labor intensity of personnel to achieve stable tapping Rhythm, reduce labor intensity, increase the effect of output

Inactive Publication Date: 2020-09-25
SHANDONG LAIGANG YONGFENG STEEL & IRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of unstable billet supply rhythm, high labor intensity of personnel, and ineffective production capacity, the purpose of the present invention is to provide an automatic control system and control method for precise steel tapping of a heating furnace

Method used

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  • Automatic control system for precise tapping of heating furnace and control method

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Embodiment Construction

[0020] The following are specific examples of the present invention, further describing the technical solutions of the present invention, but the protection scope of the present invention is not limited to these examples. All changes or equivalent substitutions that do not depart from the concept of the present invention are included in the protection scope of the present invention.

[0021] Such as figure 1 As shown, the automatic control system for precise tapping of heating furnace includes:

[0022] Speed ​​feedback unit, including the main motor encoder and Siemens FM450 high-speed counting module, used to convert and collect the speed of No. 1 main motor;

[0023] The heating furnace PLC control unit is used to calculate the variables and data involved in precise tapping, and output the calculation results for equipment action signals;

[0024] The on-site signal feedback unit, including the hot metal detector installed on the roller table, is used to detect the time p...

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Abstract

The invention relates to an automatic control system for precise tapping of a heating furnace and a control method. The system comprises a speed feedback unit, a heating furnace PLC control unit, an on-site signal feedback unit, a tapping roller way control unit and an HMI operation unit. Through the process of controlling billets to move from the heating furnace to a main rolling mill, the automatic control system of the heating furnace and the main rolling mill speed of a rolling line form a closed-loop control, so that the billets are automatically, continuously and accurately fed into themain rolling mill, the material supply rhythm is stabilized between 4.5 seconds and 5.3 seconds, the interval time between two successive billets is kept within one second, the fluctuation range is stabilized within one second currently compared with the original 3 seconds, labor intensity of operators is reduced, the stable tapping rhythm of unmanned operation in a tapping area of the heating furnace is achieved, and the production is improved.

Description

technical field [0001] The invention belongs to the technical field of automation control, and in particular relates to an automatic control system and control method for precise steel tapping of a heating furnace. Background technique [0002] In the high-speed bar production line of the automatic continuous rolling production line in the metallurgical field, the billet is heated by the heating furnace, and then the billet is sent to the main rolling mill through the operation of the walking beam in the heating furnace, the cantilever roller table in the discharge furnace and the discharge roller table. Start rolling, calculate the rolling time of this billet according to the signal generated when the billet bites into the rolling mill, the speed of the roller table passing through and out of the furnace, and the rolling speed, and then determine when the next billet will be passed by the roller table from the heating furnace Once the conditions are met, the walking beam of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B9/20F27B9/40F27D19/00
CPCF27B9/202F27B9/40F27D19/00F27D2019/0059
Inventor 邹淑峰赵晓曹立棋位震黄友堂张长军王辉张亮亮马岩刘延亮刘振凯
Owner SHANDONG LAIGANG YONGFENG STEEL & IRON