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A simulation device and method for the heating process of molten steel in the nozzle channel

A heating device and simulation method technology, applied in the direction of material thermal development, material resistance, etc., to achieve the effects of small heat loss, easy and accurate control, and high heat conduction efficiency

Active Publication Date: 2020-02-07
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology is still in the stage of proposing a new concept, and there are no corresponding laboratory simulations and engineering application cases. Corresponding basic research is urgently needed to obtain the best heating process parameters to support the future implementation of this technology

Method used

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  • A simulation device and method for the heating process of molten steel in the nozzle channel

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Embodiment 1

[0031] A simulation device for the heating process of molten steel in a nozzle channel, comprising a ladle model, a tundish model, an aluminum shroud, a heating device, a conductivity monitoring device, a temperature monitoring device, and a tracer adding device. The ladle model is Above the tundish model, the aluminum shroud is installed at the bottom of the ladle model according to the actual positional relationship between the ladle and the shroud, the heating device is installed at the aluminum shroud, the ladle model, the aluminum shroud and the middle The dimensions of the ladle model are all scaled down with reference to the actual ladle, shroud and tundish sizes according to similar principles. The tracer adding device is set above the aluminum shroud, and the tundish model has a water outlet. The conductivity monitoring device is located at the outlet.

[0032] A method for simulating the heating process of molten steel in a nozzle channel, using the aforementioned simul...

Embodiment 2

[0040] A simulation device for the heating process of molten steel in a nozzle channel, including a ladle model, a tundish model, a copper shroud, a heating device, a conductivity monitoring device, a temperature monitoring device, and a tracer adding device. The ladle model is Above the tundish model, the copper shroud is installed at the bottom of the ladle model according to the actual positional relationship between the ladle and the shroud, the heating device is installed at the copper shroud, the ladle model, the copper shroud and the middle The size of the ladle model is all scaled down with reference to the actual ladle, shroud and tundish sizes according to similar principles. The tracer adding device is set above the copper shroud, and the tundish model has a water outlet. The conductivity monitoring device is located at the outlet, and the heating device includes a heat-conducting water tank, a constant-temperature water tank, and a water pump, and the heat-conducting...

Embodiment 3

[0049] A simulation device for the heating process of molten steel in a nozzle channel, comprising a ladle model, a tundish model, an aluminum shroud, a heating device, a conductivity monitoring device, a temperature monitoring device, and a adding device, the ladle model is in the middle Above the ladle model, the aluminum shroud is installed at the bottom of the ladle model according to the actual positional relationship between the ladle and the shroud, the heating device is installed at the aluminum shroud, the size of the ladle model, the aluminum shroud and the tundish model The dimensions of the ladle, shroud and tundish are all reduced in proportion to the actual ladle, shroud and tundish according to similar principles. The tracer adding device is arranged above the aluminum shroud. The tundish model has three outlets. The conductivity The monitoring device is located at the outlet, and the heating device includes a heat-conducting water tank, a constant-temperature wat...

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Abstract

The invention provides a device for simulating a heating process of molten steel in a water gap channel. The device is characterized in that the device comprises a ladle model, a tundish model, a metal long nozzle, a heating device, a conductivity monitoring device, a temperature monitoring device and a tracer adding device, the ladle model is arranged above the tundish model, the metal long nozzle is arranged at the bottom of the ladle model according to the position relation between the actual ladle and the long nozzle, the heating device is arranged at the metal long water port, the traceradding device is positioned above the metal long nozzle, the tundish model comprises at least one water outlet, and the conductivity monitoring device is located at the outlet. The device for simulating the heating process of molten steel in the water gap channel can truly simulate the law of influence of the heating process of the long nozzle on the temperature and flowing uniform mixing of the molten steel in the tundish; and the method takes the heating effect and the uniform mixing effect of the tundish fluid as evaluation indexes, and can obtain the optimal heating time and the optimal heating rate required by the long nozzle heating process in actual continuous casting production by designing different heating parameters.

Description

Technical field [0001] The invention relates to a device and method for a heating process of molten metal, in particular to a device and method for simulating the heating process of molten steel in a nozzle channel. Background technique [0002] In the continuous casting process, the pouring temperature is a key factor that affects the continuous casting and the quality of the slab. How to achieve "constant temperature and low superheat" pouring is one of the important goals pursued by tundish metallurgy and continuous casting technology. However, the sidewall, bottom and top cover of the tundish will continue to dissipate heat to the outside during the pouring process. The document "Numerical Simulation of the Magnetic / Heat / Flow Coupled Field of Induction Heating Tundish" reports that the molten steel temperature of a pouring furnace The temperature drop can reach 10-20℃; especially in the process of replacing the ladle, the temperature in the tundish fluctuates greatly, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/20G01N27/10
CPCG01N25/20G01N27/10
Inventor 张江山刘青杨树峰李京社
Owner UNIV OF SCI & TECH BEIJING
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