Descaling and positioning device for hot continuous rolling processing of wide-band steel

Abstract

The invention discloses a descaling guide device for hot continuous rolling machining applicable to wide strip steel. The device is arranged in a roughing mill; the roughing mill comprises a pair of working rolls which comprise an upper working roll and a lower working roll opposite to each other; the descaling guide device for the hot continuous rolling machining applicable to the wide strip steel comprises descaling baffle plates which extend towards the middle positions of the two working rolls from the front and rear ends of the working rolls respectively; the descaling baffle plates are provided with descaling agent tubes which are communicated with a descaling agent groove in the roughing mill; the end parts, away from certain sides of the working rolls, of the descaling baffle plates are fixedly connected with a guide control cylinder; a displacement sensor is arranged in the guide control cylinder. By using the descaling guide device for the hot continuous rolling machining applicable to the wide strip steel in the technical scheme, good stability of the descaling device can be kept during working through structural arrangement of the descaling guide device, so that the descaling device can be prevented from falling so as not to cause collision with the strip steel.

Description

technical field [0001] The invention relates to a metal surface treatment device in the metal processing process, in particular to a descaling guide device for hot continuous rolling processing of wide-band steel. Background technique [0002] With the rapid improvement of the hot rolling process equipment level and the increasingly mature production and operation management, the effective operation rate index of the rolling line has been greatly improved, and whether the rolling line equipment can run stably has become an extremely important indicator of the production plant, reducing Equipment accidents are the primary goal of hot rolling mill management today. [0003] In the rough rolling process of strip hot rolling, in order to eliminate the scale layer on the surface of the strip steel, it is necessary to carry out the descaling process to ensure that the scale layer will not be hot rolled with the strip steel to damage the quality of the formed strip steel. The desc...

AI Technical Summary

Problems solved by technology

In the actual hot rolling process, especially in large-scale hot rolling roughing mills, accidents of the descaling and guiding equipment being knocked down by the rolling stock often occur. Once the descaling and guiding equipment is damaged, it cannot be produced, and the accident occurs. The post-processing time generally takes 2 to 4 hours in hot continuous rolling with a width of 1450mm; once the accident occurs in a hot continuous rolling mill with a width of about 2000mm, the processing time may be 8 to 24 hours; For mid-rolling plate, due to the heavy weight of the descaling and guiding equipment, and the small installation space of the hydraulic cylinder, the accident rate is higher. Once an equipment failure occurs and the rolled piece is knocked down, it takes more than 24 hours to resume production, which directly affects the entire production line. indirect incalculable losses

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