Device and method for shortening continuous tapping time interval of rolled steel production line

Abstract

The invention discloses a device and a method for shortening a continuous tapping time interval of a rolled steel production line, belongs to the technical field of rolled steel production line equipment and processes, and is used for shortening the continuous tapping time interval of the rolled steel production line. A heat metal detector is placed in front of a first rolling mill from the center line of a roller of the first rolling mill by a length of a whole section of steel blank; and steel tail signals monitored by the heat metal detector are used for replacing steel containing signals when engaging in the rolling mill. When the head part of the latter steel blank is rightly engaged in the first rolling mill, an alternating-current main motor of the first rolling mill starts to decelerate. The reasonable steel separation distance is guaranteed by dint of the continuously quickened rolling speed of a downstream frame, the low-speed continuous time and the low-speed rate setting. The safe steel separation is realized by using the first rolling mill as a steel separation point, so that the normal operation of subsequent key equipment is guaranteed, and the effects of shortening the steel blank rolling interval time, improving the production efficiency and largely reducing the energy consumption are achieved under the precondition of not influencing the production process.

Description

technical field [0001] The invention relates to a device and method for shortening the continuous tapping time interval of a steel rolling production line, and belongs to the technical field of steel rolling production line equipment and technology. Background technique [0002] "Steel rolling" is the last link in steel production. The steel billets of different specifications preheated by the heating furnace are rolled into different specifications through a continuous rolling mill with dozens or dozens of racks placed on a straight line and driven by AC and DC excitation motors. Finished steel. This production process belongs to metal pressure processing. From the beginning of the first rolling mill to the end of the last rolling mill, each time the billet in continuous rolling passes through a rolling mill, the billet will be compressed to a certain size by the two sets of rolls of the rolling mill. And each time after passing through a rolling mill, according to the p...

AI Technical Summary

Problems solved by technology

Now because the steel billets are connected end to end, the rolling mill is always in the state of biting steel, and the steel signal of the rolling mill will continue uninterrupted, so it is impossible to normally identify whether the front steel is biting or the rear steel is biting

[0005] At present, it is impossible to place a signal sensor at the first rolling mill in the case of the mode transition from current analog to digital, because the center line of the roll is a very precise position. Due to the large volume of the rolling mill roll, it is impossible to place a sensor on this space. Digital signal sensor

After reviewing relevant information, it is found that even if there is a case where the signal sensor is successfully placed at the centerline of the roll, it will not reach a certain accuracy, which will affect the subsequent related steps

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