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Cooling and protecting mechanism of sealing ring

A technology of cooling protection and sealing ring, applied in the maintenance of heating chamber, lighting and heating equipment, furnace, etc., can solve the problems of affecting the sealing effect, large nitrogen consumption, burning out of the sealing ring, etc., to improve the cooling effect and ensure effect, ensure the effect of sealing requirements

Inactive Publication Date: 2013-09-18
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production pace of the steel plant is relatively fast, the nitrogen consumption is very large, the pressure is difficult to stabilize, the cooling effect is good and bad, and the sealing ring is often burned out
If the replacement is not found in time, it will affect the sealing effect

Method used

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  • Cooling and protecting mechanism of sealing ring

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Embodiment Construction

[0015] The invention relates to the field of metallurgy, in particular to providing a new type of cooling protection for the sealing ring between the upper flange of a vacuum tank and the flange of a hot bend pipe in an RH external refining system.

[0016] see figure 1 , the specific structure of a sealing ring cooling protection mechanism involved in the present invention is:

[0017] Including industrial water inlet pipe 1, overflow return pipe 2, cooling water tank 3 and return water main pipe 7; among them,

[0018] The cooling water tank 3 is arranged around the flange 4 of the upper tank in the RH external refining system, the water inlet end of the cooling water tank 3 is connected with the industrial water inlet pipe 1, the water outlet end of the cooling water tank 3 is connected with the overflow return pipe 2, and the overflow return pipe 2. It is connected to the hot well pool discharged to the vacuum system through the return water main pipe 7;

[0019] The ele...

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Abstract

The invention relates to a cooling and protecting mechanism of a sealing ring. The cooling and protecting mechanism is characterized by comprising an industrial water inlet pipe, overflowing water return pipes, a cooling water groove and a water-return main pipe, wherein the cooling water groove is arranged at the periphery of an upper-part groove flange in a refining system outside an RH furnace; the water inlet end of the cooling water groove is connected with the industrial water inlet pipe, and the water outlet end of the cooling water groove is connected with the overflowing water return pipe which is connected with a hot well pond of a vacuum system by the water-return main pipe; the level of an upper opening of the overflowing water return pipe is higher than the top part of a sealing ring on a dovetail groove of the upper-part groove flange, and is lower than the level of the top part of a steel plate of an upper-part groove body. The cooling and protecting mechanism has the advantages that dynamic balance and cyclic utilization of industrial water are realized, the cooling effect is improved, high-temperature waste gas is prevented from overflowing outwards to burn the sealing ring when a hot bending pipe rises, the sealing requirement of the whole system is guaranteed and the vacuum smelting effect is ensured; and simultaneously, the service life of the sealing ring is prolonged and the risk of workers for replacing the sealing ring under the high-temperature environment is reduced.

Description

technical field [0001] The invention relates to a cooling protection mechanism for a sealing ring. Background technique [0002] The function of refining outside the vacuum furnace is to carry out vacuum circulation degassing on molten steel. The vacuum tank is just the key container for vacuum circulation degassing of molten steel. Then, under the influence of gravity, it falls from the downcomer of the vacuum tank and forms a large circulation with the molten steel in the ladle to achieve the function of degassing and removing impurities, and produce high-quality, high-value-added products. However, due to the influence of the operation rules of the steel mill and the erosion of molten steel, the vacuum tank needs to be moved back and forth between several stations and the refractory material is sprayed, and it needs to be disconnected from the hot elbow connecting the vacuum tank and the vacuum pump. The temperature in the tank can reach more than 1000°C. During the proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/10F27D7/06
Inventor 周友军任彤王海滨曹海玲张明张钰
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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