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A cooling control device and control method for a single-point unbalanced casting special-shaped billet crystallizer

A crystallizer and unbalanced technology, which is applied in the field of continuous casting, can solve the problems of uneven cooling of the mold and uneven cooling of the mold for single-point unbalanced casting of shaped billets, so as to avoid production accidents and facilitate asymmetric and balanced heat transfer , to ensure the effect of relative accuracy

Active Publication Date: 2021-04-13
LAIWU STEEL YINSHAN SECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In view of the fact that the existing crystallizer cooling control device and control method cannot solve the problem of uneven cooling of the single-point unbalanced casting special-shaped billet mold, the purpose of the present invention is to provide a single-point unbalanced casting special-shaped billet crystallizer cooling control device, which It can effectively solve the problem of uneven cooling of the single-point unbalanced casting special-shaped billet mold, which is beneficial to the uniform temperature of the special-shaped billet mold. The device is not prone to leaking, and the defects of longitudinal cracks on the surface of the billet at the web and rounded corners are improved

Method used

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  • A cooling control device and control method for a single-point unbalanced casting special-shaped billet crystallizer
  • A cooling control device and control method for a single-point unbalanced casting special-shaped billet crystallizer
  • A cooling control device and control method for a single-point unbalanced casting special-shaped billet crystallizer

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Effect test

Embodiment 1

[0070] Such as figure 1 and image 3 As shown, a cooling control device for a single-point unbalanced casting shaped billet crystallizer of the present invention includes an off-line cooling water calculation system, an online real-time control system, a main water inlet pipe 5-1 and a water main pipe 5-2.

[0071] The off-line cooling water volume calculation system is used to calculate the initial cooling water volume in the offline state, guide the real-time cooling water volume, and the online real-time control system provides real-time feedback to the off-line cooling water volume calculation system, adjusts relevant continuous casting process parameters, and ensures the off-line calculation of cooling water volume relative accuracy.

[0072] The online real-time control system includes the crystallizer cooling water circulation module and the cooling water temperature difference calculation and water volume calculation unit. The online real-time control system is electr...

Embodiment 2

[0097] The control device and control method of this embodiment are the same as those of Embodiment 1, the difference is that the present invention is further explained and supported.

[0098] Such as Figure 4 and Figure 5 Shown is the flow field of molten steel during casting in the mold of single-point unbalanced casting by water simulation, and the flow field of molten steel after diffusion after a short period of time. The water simulation results show that in the single-point unbalanced casting During casting, the distribution of the flow field of the profiled billet mold is extremely uneven. Due to the inhomogeneity of the flow field, the temperature field of the molten steel in the profiled billet mold is not uniform, and the cooling conditions of each surface of the mold vary greatly.

[0099] Such as figure 2 As shown, it is a schematic diagram of the mold for the special-shaped billet used by the control device and the control method of the present invention. Th...

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Abstract

The invention discloses a cooling control device and a control method for a single-point non-balanced casting special-shaped billet crystallizer, and belongs to the technical field of continuous casting. It includes off-line cooling water volume calculation system, online real-time control system, water inlet main pipe and outlet water main pipe; online real-time control system is electrically connected with off-line cooling water volume calculation system; online real-time control system includes crystallizer cooling water circulation module and cooling water temperature difference calculation and the water volume calculation unit, the two ends of the crystallizer cooling water circulation module are respectively connected with the main water inlet pipe and the main water outlet pipe. The invention is beneficial to the temperature uniformity of the special-shaped billet crystallizer, the solidification and growth of the billet, and the defects of longitudinal cracks on the surface of the billet at the web and fillet, and has the advantages of simple structure, reasonable design and easy implementation.

Description

technical field [0001] The invention belongs to the technical field of continuous casting, and more specifically relates to a cooling control device and a control method for a single-point unbalanced casting profile billet crystallizer. Background technique [0002] In the 1950s, the United States developed a new technology called continuous casting technology. This technology is characterized by direct casting of molten steel. Compared with traditional casting methods, this technology has good slab quality, higher metal output and lower High resource utilization. The production process is: first pour the molten steel into the ladle, and then the molten steel flows out along the ladle into the tundish. It is more pure, then the molten steel will flow into the mold, and the mold will cool it through the cooling water. The molten steel will gradually cool and solidify in the mold, and then enter the arc-shaped guide section, where it will be sprayed by the nozzles in the seco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/055B22D11/22
CPCB22D11/009B22D11/055B22D11/22
Inventor 李四军王中学何飞彭永香杜金科韩蕾蕾郭达周俐张闯常立忠王海军
Owner LAIWU STEEL YINSHAN SECTION CO LTD
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