Device and method for quickly removing occluded foreign substances in molten steel

A technology for inclusions and molten steel, which is used in the rapid removal device for inclusions in molten steel and in the field of high-quality steel production.
CN103555889AInactive Publication Date: 2014-02-05CENT IRON & STEEL RES INST
4 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CENT IRON & STEEL RES INST
Publication Date
2014-02-05
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a device and a method for quickly removing occluded foreign substances in molten steel, and relates to the field of production of a high-quality steel product. The basic principle is that high-purity argon is blown at the bottom of a molten steel container; a certain amount of specific ventilating elements are arranged according to the demands; a lot of tiny bubble areas are generated in the molten steel which is primarily melted or refined; the molten steel is subjected to purification treatment; the occluded foreign substances in the molten steel are efficiently and quickly promoted to enter inside top residue to be removed in catching and rising manners. The device is composed of a container (steel ladle or tundish) (1) of containing the molten steel, a plurality of specific conical bottom blowing elements (2), a guard brick (6), a bottom blowing gas adjusting system (7) and the like. The device has the advantages of being large in dispersed bubble coverage area of bottom air supply in the molten steel, fast in removal rate of the occluded foreign substances, and high in gas utilization rate; a specific air supply element has the convertibility and the like; the refining requirements of high-quality steel can be met.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention belongs to the technical field of steelmaking equipment, and in particular relates to a device and method for quickly removing inclusions in molten steel, and a refining device and method for quickly removing inclusions in molten steel. The device and method quickly remove inclusions in molten steel. Efficient and suitable for high-quality steel production. Background technique

[0002] The size, quantity, distribution and type of inclusions in molten steel have a great influence on the quality of steel. Minimizing the number of various inclusions in molten steel has become one of the important directions for improving the quality of molten steel. At present, the methods and devices of molten steel refining at home and abroad mainly include ordinary ladle bottom argon blowing, CAS / CAS-OB refining furnace, LF ladle refining furnace, RH vacuum circulation refining furnace, VD / VOD vacuum refining furnace, etc. These traditional refining furnaces ...

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