A control method for improving the billet discharge efficiency of the heating furnace

Abstract

The present invention relates to the technical field of steel rolling, in particular to a control method for improving the billet discharge efficiency of a heating furnace. Running, conveying the billet out of the furnace, the running speed of the billet is V2; the second step, when the tail end of the discharged billet passes point A, the roller table in the furnace stops running; the third step, when the front end of the billet runs to point B, the billet running speed is adjusted to V ; In the fourth step, when the front end of the billet enters the roughing mill to start rolling, the roller table in the heating furnace starts to run, and the billet is conveyed out of the furnace at a speed of V2; after the billet is released from the furnace, repeat the first step to the fourth step to carry out the billet conveying and rolling control. The control method provided by the invention can realize the automatic control of billets out of the furnace, can prevent stacking accidents, improve the efficiency of billets out of the furnace and the steel rolling output, and reduce the labor intensity of the post personnel.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a control method for improving billet discharge efficiency of a heating furnace. Background technique [0002] In the steel rolling process, the billet is heated in a heating furnace and then supplied to a rolling mill for rolling. Billets are rolled one by one, and the interval between rolling of adjacent billets needs to be controlled within a reasonable range. If the interval is too short, steel stacking accidents will easily occur, and if the interval is too long, it will affect the operation efficiency and output. Therefore, precise control is required. Billet out of the furnace time. [0003] In the prior art, the billet out of the heating furnace is manually controlled, and the operator observes the rolling progress of the billet with the naked eye, and manually controls the billet out of the furnace. The rolling time of each billet with a length of 12m is less tha...

AI Technical Summary

Problems solved by technology

[0004] (1) The operator manually controls the billet out of the furnace, and the control deviation of the rolling interval between adjacent billets is large, which affects the operation efficiency and output, and is also prone to steel stacking accidents;

[0005] ⑵Because of the fast rolling speed, the operator frequently operates the billet discharge control switch continuously, which requires a high degree of concentration and eyesight, which is labor intensive and easy to fatigue

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