Control method for improving ejection efficiency of heating furnace

Abstract

The invention relates to the technical field of steel rolling, in particular to a control method for improving the ejection efficiency of a heating furnace. After the rolling condition is met, a post person gives an instruction; a control system performs automatic control that step 1, a billet discharge roller way in the heating furnace starts to operate, a steel billet is conveyed out of the furnace, and the running speed of the steel billet is V2; step 2, when a tail end of the discharged steel billet passes through a point A, the roller way in the furnace stops running; step 3, when a front end of the steel billet runs to a point B, the running speed of the steel billet is adjusted to be V; step 4, when the front end of the steel billet enters into a roughing mill to start rolling, the roller way in the heating furnace is started to run, the steel billet is conveyed out of the furnace, and the steel billet running speed is V2; and after the steel billet is discharged, the first to fourth steps are repeated for steel billet conveying and rolling control. According to the control method, automatic control of billet discharging can be realized, steel piling accidents can be prevented, billet discharging efficiency and rolled steel yield are improved, and labor intensity of post personnel is reduced.

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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