Steel rolling water-penetrating system water tank control method and device

Abstract

The invention discloses a steel rolling water-penetrating system water tank control method and device. The method includes: detecting real-time current signals of a finishing mill; judging whether the finishing mill is in a steel biting state or a tail shedding state or not according to the real-time current signals; if yes, controlling water valves of water tanks to be sequentially opened or closed according to a preset water tank sequence. By applying the steel rolling water-penetrating system water tank control method and device, signals controlling the water tanks are changed from original hot metal detector signals to real-time current information of the finishing mill, the problem of steel heaping caused by impact on rolled pieces due to the fact that water penetrating valves are frequently opened and closed or not closed because of unstable signals originally is avoided, and the water tanks can be controlled to be accurately closed; memory temperature control is performed on heads and tails of the rolled pieces, so that the problem that the heads and the tails of the rolled pieces are unqualified in physical performance is avoided, production cost is lowered, and rolling yield is increased.

Description

technical field [0001] The invention relates to the technical field of steel rolling production control, and more particularly, to a water tank control method and device of a steel rolling water penetration system. Background technique [0002] Fine-grained steel is a steel in which the metal material is refined by some heat treatment methods to make its intrinsic grain size reach grade 5 to 8, thereby improving its mechanical properties. In the trial production process of the development of fine-grained steel, on the one hand, the water penetration system often causes an impact on the rolling stock in the guide groove at the moment of boiling water, which causes the rolling stock to bend in the guide groove or reduce the sizing in the finishing mill and sizing. On the other hand, due to the unstable signal of the hot metal detector in the water penetration system, the water penetration valve frequently switches on and off the water or does not close, which causes the impact...

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Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a method and device for controlling the water tank of the water-piercing system of rolling steel, so as to solve the problem that the water-piercing valve frequently switches the water or does not close it, which causes the impact on the rolled piece and causes the pile of steel

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