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Online temperature measuring device and method for VD refining furnace

A temperature measuring device, technology of refining furnace

Active Publication Date: 2015-11-18
TONGYU HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of stirring, it is inevitable that the surface of the molten steel will be exposed, resulting in secondary oxidation of the molten steel, which will affect the quality of the molten steel;

Method used

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  • Online temperature measuring device and method for VD refining furnace
  • Online temperature measuring device and method for VD refining furnace

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 and 2 As shown, an online temperature measuring device for a VD refining furnace includes a bracket. It is characterized in that the bracket includes a fixed bracket 11 and a movable bracket 12 movably connected thereto. One side of the fixed bracket 11 is provided with a guide sleeve 2. The upper end of the guide sleeve 2 is provided with a sealing device, and the lower end of the guide sleeve is provided with a water cooling device;

[0026] One side of the movable support 12 is provided with a telescopic rod 4 , which can be inserted into the guide sleeve 2 , and one end of the telescopic rod 4 is provided with a temperature measuring gun 5 connected to a temperature instrument 6 .

[0027] Wherein, the sealing device includes a sealing sleeve 31 at the upper end of the guide sleeve 2 , a number of O-rings 33 are ev...

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Abstract

An online temperature measuring device for a VD refining furnace comprises a support. The online temperature measuring device is characterized in that the support comprises a fixed support and a movable support movably connected with the fixed support, wherein a guide sleeve is arranged on one side of the fixed support, a sealing device is arranged at the upper end of the guide sleeve, and a water cooling device is arranged at the lower end of the guide sleeve; a telescopic rod is arranged on one side of the movable support and is exactly inserted in the guide sleeve, a temperature measuring gun is arranged at one end of the telescopic rod, and the temperature measuring gun is connected with a temperature instrument. The temperature of molten steel can be measured in real time in a vacuum state.

Description

technical field [0001] The invention relates to a temperature measuring device for a VD refining furnace. The invention also relates to a temperature measuring method for a VD refining furnace. Background technique [0002] At present, most of the special steel enterprises in China that are degassed by VD refining furnaces measure the temperature after the molten steel is degassed by VD. If the degassing is over and the temperature is too high, there are two ways to lower the temperature. One is to use argon gas stirring at the bottom of the ladle to lower the temperature after the VD is broken. However, in the process of stirring, it is inevitable that the surface of the molten steel is exposed, causing secondary oxidation of the molten steel, which affects the quality of the molten steel; the second is to carry out the degassing and re-extraction process again after the molten steel is broken, which inevitably causes waste of steam and increases consumption. Contents of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/10F27D21/00
Inventor 司兴奎刘殿山胡明春焦连亮
Owner TONGYU HEAVY IND
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