Continuous casting cooling spray device

Abstract

The invention discloses a continuous casting cooling spray device. The continuous casting cooling spray device comprises an inner arc spray assembly, an outer arc spray assembly and a left spray assembly and a right spray assembly, wherein the inner arc spray assembly is arranged below an outlet of a crystallizer and is located on one side of an inner arc of a casting blank, the outer arc spray assembly is located on one side of an outer arc of the casting blank, and the left spray assembly and the right spray assembly are separately located on two sides of a plane where the casting blank curves in an arc shape; the inner arc spray assembly, the outer arc spray assembly and the left spray assembly and the right spray assembly are provided with a plurality of layers of nozzles in a spaced manner along the length direction of the casting blank, separately, the distances from the nozzles in each layer to the surface of the casting blank are equal, and the distances from the nozzles in different layers to the surface of the casting blank are equal, too. According to the continuous casting cooling spray device, the spray assemblies are separately arranged around the casting blank to guarantee that the casting blank is sprayed and cooled uniformly, so that the cooling effect is improved, the quality of a steel billet is guaranteed, and severe quality problems, such as center cracks,collapse, bulges and curved billets, of the steel billet are avoided. The surrounding spray assemblies which are relatively independent are convenient to maintain and replace, good in universality, suitable for casting blanks of different cross-section dimensions and long in service life.

Description

technical field [0001] The invention relates to the technical field of steelmaking and continuous casting equipment, in particular to a continuous casting cooling spray device. Background technique [0002] In continuous casting production, the slab forms a slab shell in the crystallizer, and then the slab needs to be further cooled in the secondary cooling section by pure water spray or air-water spray, which is called secondary cooling. In the secondary cooling section of square and round slab continuous casting machines, in order to ensure that the slab is cooled evenly in the entire circumferential direction, it is necessary to install a series of nozzles in the circumferential direction to spray water mist on the surface of the slab, and in the secondary cooling section along the conveying direction Spray racks are arranged in sections to connect the air-water passage, support and position the nozzles. The nozzles are usually sprayed in a direction perpendicular to the ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved and the technical task proposed by the present invention are to improve the existing technology and provide a continuous casting cooling spray device to

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