Method for controlling cooling water flow of double-roll strip casting rolls

A technology of cooling water flow rate and double-roll thin strip, applied in the field of thin strip continuous casting technology, to achieve the effect of reliable means, simple and reliable water supply system, and rapid adjustment method

Active Publication Date: 2016-01-06
BAOSHAN IRON & STEEL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method also uses the water temperature difference and water volume to calculate the heat taken away by the cooling water, it is used to reverse the roller surface temperature.

Method used

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  • Method for controlling cooling water flow of double-roll strip casting rolls
  • Method for controlling cooling water flow of double-roll strip casting rolls
  • Method for controlling cooling water flow of double-roll strip casting rolls

Examples

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Embodiment Construction

[0037] The twin-roll thin strip continuous casting process such as figure 1 As shown, the molten steel in the tundish 5 is evenly distributed through the nozzle 6 and the distributor 7 in the space surrounded by the two casting rolls 1a, 1b with cooling water inside and the ceramic plates 2a, 2b As the casting rolls rotate in opposite directions, the molten steel solidifies on the surface of the casting rolls and then forms a thin cast strip 3 at the smallest gap between the two casting rolls.

[0038] The structure of the cooling water channel inside the roll will be described in detail below in conjunction with the casting roll 1a.

[0039] Such as figure 2 , image 3 As shown, the casting roll includes a roll core 18 and a roll sleeve 16. Holes are processed on the roll core and the roll sleeve for cooling water to enter and exit, thereby forming two separate cooling water passages 1 and 2 inside.

[0040]Among them, the cooling water passage 1 includes a water inlet 14...

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PUM

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Abstract

The invention discloses a method for controlling cooling water flow of double-roll strip casting rolls. Each casting roll is provided with one or more water inlets and corresponding water outlets. Correspondingly, one or more independent cooling water channels are formed in each casting roll. A water outlet of each cooling water channel is provided with a flow adjusting valve which can adjust the flow of cooling water passing through the cooling water channel. A water pump which can adjust the flow is used for providing cooling water for the two casting rolls. Meanwhile, a flow controller monitors the flow qn of cooling water in each cooling water channel of each casting roll and adjusts the corresponding flow adjusting valve to change the flow of cooling water in the corresponding cooling water channel according to the deviation of the flow qn and the cooling water flow average value in the cooling water channels, finally, the flow in all the cooling water channels in each casting roll is consistent, and therefore the cooling strength in the casting rolls can be even. The method has the beneficial effects that the cooling water flow control precision is high, and the responding speed is high.

Description

technical field [0001] The invention relates to thin strip continuous casting technology, in particular to a method for controlling the cooling water flow of twin-roll thin strip continuous casting rolls. Background technique [0002] The typical production process of twin-roll thin strip continuous casting technology is: the molten steel is evenly distributed in the space surrounded by two counter-rotating, water-cooled casting rolls and ceramic material baffles to form a molten pool, and the molten steel is on the rollers. The surface solidifies and forms a thin strip between two casting rolls. [0003] As described in the typical process, the casting roll generally has a water inlet and a water outlet for cooling water. The cooling water passes into the roll through the water inlet and enters a number of penetrating rolls that are generally located below the roll surface and evenly arranged along the circumference of the roll surface. The cooling water flows through the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/22B22D11/06
Inventor 叶长宏张健于艳张青周坚刚
Owner BAOSHAN IRON & STEEL CO LTD
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