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Insert tube of vacuum circulating degasification apparatus

A vacuum cycle degassing and tube insertion technology, which is applied in the direction of improving process efficiency, can solve the problems of small circulation flow rate and inability to expand the inner diameter, and achieve the effect of increasing steel output

Inactive Publication Date: 2007-07-11
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the distance between the connecting pipes used by the vacuum circulation degassing equipment to set the insertion pipes, the distance between the outer diameters of the two insertion pipes is too small to expand the inner diameter, and the circulation flow rate is small, which restricts the improvement of steel production. A factor

Method used

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  • Insert tube of vacuum circulating degasification apparatus
  • Insert tube of vacuum circulating degasification apparatus
  • Insert tube of vacuum circulating degasification apparatus

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Embodiment Construction

[0023] The specific implementation of the insertion tube for vacuum circulation degassing equipment of the present invention will be described in detail below in conjunction with the examples and accompanying drawings, but the specific implementation of the insertion tube for vacuum circulation degassing equipment of the present invention is not limited to the following examples.

[0024] The insertion tube for vacuum circulation degassing equipment described in Figure 1, Figure 2 and Figure 3 includes a connecting flange, a steel cylinder, a refractory brick layer and a refractory cement sleeve. The flange openings are welded together, the refractory cement sleeve is wrapped outside the steel cylinder, and the refractory brick layer is arranged inside the steel cylinder. The inner side of the refractory brick layer is a through hole, which leads downward to the outside of the refractory cement sleeve. It is characterized by : said connecting flange is a double-orifice flange 3...

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Abstract

Disclosed is an insert tube of vacuum circulating degasification apparatus which comprises a coupling flange, a steel cylinder, a refractory brick layer and a fire proof cement sheath, wherein the coupling flange is provided with two apertures, the distance between the centers of the two apertures corresponds or is equal to the centers of the two coupling ports below the vacuum chamber of the vacuum recycled degasification equipment, each of the two apertures is connected with a steel cylinder through soldering, one of the steel cylinders is provided with 6-12 non-corrodible steel vent pipes around the through-holes of the refractory brick layer for letting in argon gas.

Description

technical field [0001] The invention relates to an insertion tube for vacuum cycle degassing equipment. Background technique [0002] The vacuum cycle degassing equipment was jointly designed and successfully tested by Lule and Hailaer in Germany in 1957. It is used for the dehydrogenation of molten steel. After more than 40 years of development, the vacuum cycle degassing equipment has the functions of dehydrogenation, carbon, oxygen, Sulfur, alloying, temperature control and many other functions. Now some iron and steel enterprises in the world have been widely used. This circulation degassing equipment has a vacuum chamber, and there are two insertion pipes below the vacuum chamber, one is an ascending pipe and the other is a descending pipe. Insert the insertion tube into the molten steel, vacuumize the vacuum chamber, and the molten steel is siphoned into the vacuum chamber from the ascending pipe, and then inert argon gas is introduced into the ascending pipe, so the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/10
CPCY02P10/20
Inventor 张春亮
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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