Hot rolling controlled cooling spray header device and cooling method thereof

Abstract

The invention provides a hot-rolling and cooling-controlled spray header device and a cooling method thereof, comprising: a spray header, a slow-flow balancing device, a throttle plate, a plurality of flow splitting caps, a plurality of fine-tuning spray parts and a plurality of U The slow-flow balancing device is installed in parallel with the inner cavity of the spray header, the throttle plate is installed on the upper part of the spray header, and a plurality of the diverting caps are arranged in a staggered manner, according to the Two rows are evenly embedded in the throttle plate, each of the diverting caps is correspondingly connected to one end of the U-shaped pipe, and each U-shaped pipe is in the inner part of one end away from the throttle plate. Correspondingly set a fine-tuning spray part. The invention effectively improves the cooling comprehensive controllability and target matching adaptability of the spray pipe, realizes the corresponding control ability that is consistent with the demand and target of the spray device, and achieves the purpose of uniform cooling control for plate and strip production.

Description

technical field [0001] The invention belongs to the technical field of controlled cooling of hot-rolled steel strips or medium-thick plates, and in particular relates to controlled cooling of hot-rolled steel strips after rolling and heat treatment of strips after rolling. The cooling spray header meets the uniformity requirements of strip cooling control through the structural transformation of the header cavity. At the same time, it can realize the device and cooling method of width water crown control according to the different characteristics of strip width cooling. Background technique [0002] The production of hot-rolled high-quality steel strip or hot-rolled strip is an important field in the steel industry at present, and plays a very important role in subsequent production and application. In particular, there is more demand for hot-rolled strip high-strength steel production, and higher product quality requirements. Substituting water for gold to improve the overa...

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a hot-rolled controlled cooling spray header device and a cooling method thereof, which are used to solve the problems in the prior art between the spray header device and the strip steel to be cooled. The uncoordinated coordination between the hot-rolled strips caused problems such as uneven cooling, large deformation after cooling, and poor plate shape during the production process of laminar cooling of hot-rolled strip steel.

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