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Continuous casting spraying and cooling device

A spray cooling and continuous casting technology, applied in the field of metallurgy, can solve the problems affecting the quality of the slab and the uniformity of transverse heat transfer of the slab, and achieve the effects of uniform heat transfer, improving the quality of the slab, and small lateral temperature gradient.

Pending Publication Date: 2018-08-17
CISDI ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above method solves the problem of the uniformity of water flow density distribution, it also brings another problem, that is, the diameter and pressure of water droplets in the intersection area of ​​the spraying of two nozzles change due to the intersection, which affects the uniformity of lateral heat transfer of the slab. property, thus affecting the quality of the slab

Method used

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Embodiment Construction

[0027] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] see Figure 1 to Figure 7 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the sa...

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Abstract

The invention provides a continuous casting spraying and cooling device for cooling a casting blank. The continuous casting spraying and cooling device comprises a cylindrical roller and nozzle sets.The cylindrical roller is used for conveying the casting blank, the nozzle sets are used for cooling the roller and the casting blank, and the nozzle sets are arranged on the side, away from the casting blank, of the roller. A single nozzle set is internally provided with a plurality of nozzles, and the nozzles are all arranged at a certain angle to the axis of the roller. By rotating the nozzlesin the nozzle sets at a certain angle, the attenuation of water droplet pressure and the change of water droplet diameter are eliminated, so that the heat transfer of the casting blank in all transverse positions is more uniform, the transverse temperature gradient of the casting blank is smaller, and the phenomenon that in an original production process, some high alloy steel grades are prone tooccurring transverse cracks and star cracks is improved, so that the quality of the casting blank is improved.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, in particular to a continuous casting spray cooling device. Background technique [0002] Continuous casting is a casting process in which molten steel continuously passes through a water-cooled crystallizer, condenses into a hard shell, and is continuously pulled out from the outlet below the crystallizer. In the continuous casting process, in order to obtain high-quality slab, it is required that the temperature of the slab should decrease evenly along the casting direction, and the transverse temperature gradient perpendicular to the casting direction should be as small as possible to reduce the impact of thermal stress and mechanical stress on the slab. quality impact. Therefore, spray water cooling becomes a key factor affecting the quality of the slab. [0003] The factors affecting the heat transfer effect of spray water mainly include water flow density, water droplet diameter, and w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/124
CPCB22D11/1246
Inventor 刘强韩志伟孔意文邓比涛
Owner CISDI ENG CO LTD
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