Vacuum deaeration refining process and equipment

A vacuum degassing and equipment technology, applied in the field of RH vacuum cycle degassing and refining, can solve the problems of difficult realization, inconvenient operation and maintenance, large investment, etc., and achieve the effect of increasing processing capacity and not being easy to splash

Inactive Publication Date: 2003-03-19
BAOSHAN IRON & STEEL CO LTD +1
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One is that it is necessary to make major changes to the existing equipment, which is not easy to realize; the other is that the system is complicated, the investment is large and the operation and maintenance are inconvenient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vacuum deaeration refining process and equipment
  • Vacuum deaeration refining process and equipment
  • Vacuum deaeration refining process and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Such as Figure 4 As shown, the magnetic field generator is composed of an iron core 7 and a coil winding 8 , and the outside of the generator is wrapped by a casing 9 . The iron core 7 and the coil winding 8 can be made of planar ferromagnetic materials. The iron core 7 is made of silicon steel sheets and is divided into upper and lower layers. There are two D-shaped tubes 10 on both sides, forming four parallel water branches for cooling by water. Winding 8 is made of flat copper strip and is directly cooled by water. The housing 9 is made of double-layer non-magnetic stainless steel with water cooling in the middle. The inner cavity of the shell is filled with dry nitrogen with a pressure slightly higher than the atmospheric pressure to prevent water vapor from infiltrating and ensure the insulation of the copper tube winding.

[0024] exist Figure 5 , 6 In and 7, the RH cycle degassing refining equipment consists of a vacuum chamber 1, a ladle 2, an argon chan...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention provides one kind of vacuum deaeration refining process and equipment. Soaking pipes in the bottom of the vacuum chamber are inserted into molten steel inside the molten steel container, driving gas is introduced into the ascending soaking pipe and the molten steel flows from the molten steel container, through the ascending soaking pipe, the vacuum chamber and the descending soaking pipe before returning to the molten steel container circular. The present invention features that there is magnetic field generator installed outside at least one soaking pipe to produce electromagnetic force in the same direction to that of the circular molten steel and this results in increased circulating molten steel amount and high refining efficiency.

Description

technical field [0001] The invention relates to a vacuum degassing method and equipment, in particular to a method and equipment which can be used for RH vacuum cycle degassing and refining. Background technique [0002] For the traditional converter continuous casting process, refining determines the added value and quality of the final product, which requires a lot of molten steel to go through RH (RH is the abbreviation of vacuum cycle degassing, which is the Rheinstahl-Heraeus company who invented this method. abbreviation) processing. As the market has greatly improved product quality requirements, the composition, size, shape, quantity and distribution of inclusions in steel must be strictly controlled during refining. The RH vacuum degassing device is the most critical equipment to achieve these goals, so that the demand for RH treatment is gradually increasing, and it has gradually become the bottleneck of the converter continuous casting process. In the RH unit, t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/10
Inventor 张永杰冯长宝赫冀成
Owner BAOSHAN IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap