Slag stopper for tapping steel from converter
A technology of slag stopper and converter, which is applied in the manufacture of converters, etc., which can solve the problems of affecting the quality of tapping and the large amount of slag in tapping
Inactive Publication Date: 2017-11-28
铜山县利国钢铁有限公司
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] In modern converter steelmaking plants, the problem of slag entanglement at the end of tapping of the converter has always been a problem to be overcome. When the vortex of steel flow and slag flow is formed at the end of tapping, a negative pressure of certain pressure will be generated on the floating steel slag at the upper part of the molten steel. Pressure, the steel slag will be sucked into the tap hole under the action of negative pressure, resulting in too much slag under tapping, which will affect the quality of tapping
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0010] The present invention will be further described below in conjunction with the drawings.
[0011] Such as figure 1 As shown, a slag stopper for converter tapping includes a slag stopper body 1, an upper guide rod 2 and a lower guide rod 3. The upper half of the slag stopper body 1 has a convex cone shape. The cross section of the lower half of the body 1 is a hemispherical surface. The center of the upper half of the slag stopper body 1 is reserved with a hole connected to the upper space thereof. The top of the upper guide rod 2 is a solid structure, and the top is below It is a hollow tubular structure, and the top of the hollow section of the upper guide rod 2 is radially penetrated with a through hole 4 communicating with the outside; the lower end of the upper guide rod 2 is fixedly assembled in the hole and is sealed with the inner side wall of the hole The upper end of the lower guide rod 3 is fixedly welded to the center of the bottom of the lower half of the slag ...
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
Login to View More Abstract
The invention discloses a slag stopper for tapping steel from a converter. The slag stopper comprises a slag stopper body, an upper guide rod and a lower guide rod, the cross section of the upper half part of the slag stopper body takes the shape of a convex cone shape, the cross section of the lower half part of the slag stopper body takes the shape of a hemisphere, a pore passage communicated to a space at the upper part of the slag stopper body is reserved in the center of the upper half part of the slag stopper body, the top part of the upper guide rod is in a solid structure, the part below the top part of the upper guide rod is in a hollow tube structure, a through hole communicated with the outer part radially penetrates through the top part of a hollow section of the upper guide rod, the lower end of the upper guide rod is fixedly assembled in the pore passage and is sealed with the inner side wall of the pore passage, the upper end of the lower guide rod is fixedly welded in the center of the bottom part of the lower half part of the slag stopper body, a plurality of vent holes are evenly formed in the lower half part, near to a circular area of the lower guide rod, of the slag stopper body, and the vent holes slantly penetrate into an inner cavity at the lower end of the upper guide rod. The slag stopper effectively reduces the content of the steel slag in the tapping process, and the tapping quality is improved.
Description
Technical field [0001] The invention belongs to the technical field of smelting, in particular to a slag stopper for tapping steel in a converter. Background technique [0002] In modern converter steelmaking plants, the problem of tapping slag at the end of converter tapping has always been a problem to be overcome. At the end of tapping, when the steel flow and slag flow vortex are formed, a certain pressure is generated on the slag floating above the molten steel. Under the negative pressure, the steel slag will be sucked into the tapping port under the action of negative pressure, which will cause too much slag under tapping, which will affect the quality of tapping. Summary of the invention [0003] In view of the above-mentioned problems in the prior art, the present invention provides a slag stopper for converter tapping, which can effectively reduce the amount of steel slag contained in the tapping process and improve the quality of tapping. [0004] In order to achieve the...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/46
CPCC21C5/46
Inventor 齐正银郑庆海杨斌么高永
Owner 铜山县利国钢铁有限公司