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Stepped tundish and casting control method thereof

A tundish and step-type technology, applied in the field of iron and steel metallurgy, can solve the problems of high requirements, difficult casting control in the process of stopping pouring, large amount of residual steel, etc., and achieve the effect of preventing slag entrainment

Pending Publication Date: 2021-06-04
INST OF RES OF IRON & STEEL JIANGSU PROVINCE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can reduce the amount of remaining steel in the tundish to a certain extent, in order to ensure that no vortex is generated during the stopping of pouring, and to reduce the situation of slag rolling and lowering, there will still be cold steel on the boss, and there will still be residual steel Difficult casting control and high requirements in the process of large or stop pouring

Method used

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  • Stepped tundish and casting control method thereof
  • Stepped tundish and casting control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Combine figure 1 As shown, a dual flow step-in-band, including: Body 1, long water port 2, suppressor 3, upper retaining wall 4, damper 5, plunger 6 and upper water mouth bowl 8, long water port 2 and plug The rod 6 is fixed to the encapsulation body 1, and the suppressor 3 is mounted below the long water port 2, and the upper retaining wall 4 and the damper are located between the plug rod 6 and the long water port 2, and the upper retaining wall is located near the long water port 2 side, The bottom portion is located between the plug rod 6 and the baffle 5, and the body 1 is inclined toward the step portion 7 side to the step portion 7 side, and the inclination angle is 2-3 °. The upper retaining wall 4 includes two upper retaining walls mounted on both sides of the long water port 2; the damper 5 includes two dams disposed between the upper retaining wall 4 and the plunger 6 side sides of the long water port. 5; the damper 5 and the horizontal plane are vertically mount...

Embodiment 2

[0040] Combine figure 2 As shown, a single-flow step-in-one intermediate package, including: Body 1, long water port 2, suppressor 3, upper retaining wall 4, dam, plunger 6 and upper water mouth bowl 8, long water port 2 and plug The rod 6 is fixed to the encapsulation body 1, and the suppressor 3 is mounted below the long water port 2, and the upper retaining wall 4 and the first damper 501, the second damper 502 is located between the plug rod 6 and the long water port 2, and the upper retaining wall 4 is located adjacent to the long water port 2 side, and the cover body 1 is located between the plug rod 6 and the second bars 502, and the body 1 is in the bottom side of the inhibitor 3 to the step portion 7 side The lower inclinement is 2-3 °. The distance from the lower end distance of the upper retaining wall 4 is 150-300 mm. The preferred distance from the lower end distance of the upper retaining wall 4 is 200-250 mm. The upper retaining wall 4 and the plug rod 6 are provide...

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Abstract

The invention discloses a stepped tundish and a casting control method thereof. The tundish comprises a tundish body, a long nozzle, a turbulence inhibitor, an upper retaining wall, a retaining dam and a stopper rod. The long nozzle and the stopper rod are fixed to the tundish body, the turbulence inhibitor is installed below the long nozzle, the upper retaining wall and the retaining dam are located between the stopper rod and the long nozzle, the upper retaining wall is located on the side close to the long nozzle, a step part is arranged at the position, between the stopper and the retaining dam, of the bottom of the ladle body, the ladle bottom of the ladle body inclines downwards from one side of the turbulence inhibitor to one side of the step part, and the inclination angle ranges from 2 degrees to 3 degrees. The inclination angle of 2-3 degrees is set at the bottom of the tundish, flow guide holes are formed in the middle section of the retaining dam, and meanwhile the pulling speed is controlled when pouring is stopped, so that the remaining steel amount in the tundish is reduced to the maximum extent.

Description

Technical field [0001] The present application relates to the field of steel metallurgy, in particular to a step intermediate package and a casting control method thereof. Background technique [0002] The intermediate package is a metallurgical equipment between the connecting steel bag and the crystallizer, playing an increasingly important role in the continuous casting process. The intermediate package is reduced by reducing the level of moisture and stabilizing the water, stabilizing the injection; uses the controlling device to promote the upper floating, removal, purifying the steel water; on the multi-stream casting machine, the steel water is distributed into each crystallizer; In the process of multi-furnace, the steel water stored by the intermediate package is used to ensure that the multi-furnace is continuously poured, and the operating rate is improved. There is also a function of uniform temperature, ingredient, and heating, and constant temperature casting. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/00B22D11/18
CPCB22D41/00B22D11/18
Inventor 冯孔方马建超李强张康晖邹长东詹侃
Owner INST OF RES OF IRON & STEEL JIANGSU PROVINCE
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