Automatic Tapping Method of Steel Rolling Heating Furnace

Abstract

The invention discloses an automatic tapping method of a steel rolling heating furnace. The automatic tapping method can achieve process automation and can automatically confirm tapping information to avoid steel mixing. The automatic tapping method includes that a process automation HMI (Human Machine Interface) sends a tapping instruction to basic automation and stores the instruction, basic automation receives the tapping instruction and the stores the instruction, a tapping device is driven to tap, after tapping is finished, basic automation feeds the tapping instruction back to process automation, process automation compares the feedback tapping instruction with the stored tapping instruction, if the two instructions are consistent, process automation sends tapping information to a rolling line, and otherwise, alarming information will be displayed on the HMI. The automatic tapping method can achieve automatic confirmation of tapping information; avoids steel mixing incurred by the traditional method; improves production efficiency, and reduces labor intensity of workers as well as production cost.

Description

technical field [0001] The invention relates to the field of steel billet continuous rolling, in particular to an automatic tapping method for a steel rolling heating furnace. Background technique [0002] It is known that the heating furnaces of major iron and steel enterprises are currently using the automation mode for production management. The steel billets are loaded into the heating furnace in sequence, and the data is automatically recorded and displayed on the HMI human-machine control interface, and then carried out through automation. The slab is heated, and finally the slab that has been heated and meets the requirements is drawn out from the outlet end of the heating furnace according to the principle of first in first out. [0003] During the slab extraction process, the operator clicks the tapping operation button through the process automation interface according to the displayed nearest billet number, and the process automation sends a tapping signal to the ...

AI Technical Summary

Problems solved by technology

If the information in the telegram is inaccurate, it may lead to major accidents such as unqualified rolling specifications or even jammed steel and scrap steel, which will affect the smooth production

[0004] In the actual production process, the process automation sends steel tapping instructions to the basic automation. When the on-site production is too fast or the communication is abnormal, the two-level automation communication in the furnace area is disconnected, and the steel billet is manually drawn out through the basic automation. The process automation When sending the tapping information of the rolling line, although the basic automation manually extracts the actual object, its control program still sends the tapping information to the process automation, and sometimes, the tapping information is stored in the two-level automation communication channel. When the communication between the two levels of automation is connected again, the tapping signal residing in the communication channel is transmitted to the process automation, and the process automation processes the billet data closest to the discharge end of the heating furnace through the background processing invisible to the operator. When the information is sent to the rolling line, one object brings out two data, but the object in the furnace and the information are staggered, and "mixed steel" occurs when the steel type and specification alternate, resulting in quality accidents and seriously affecting the smooth flow of production

[0005] At present, in view of this situation, in the traditional production process, the operator manually confirms the tapping information sent to the rolling line every time the steel type and specification are alternated; therefore, the production efficiency is low and the labor intensity of the workers is high; The method of confirmation cannot completely avoid the phenomenon of "mixed steel", and the effect is poor

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