CN103805732A - Converter smelting slag pressing method - Google Patents
Converter smelting slag pressing method Download PDFInfo
- Publication number
- CN103805732A CN103805732A CN201210440505.0A CN201210440505A CN103805732A CN 103805732 A CN103805732 A CN 103805732A CN 201210440505 A CN201210440505 A CN 201210440505A CN 103805732 A CN103805732 A CN 103805732A
- Authority
- CN
- China
- Prior art keywords
- slag
- converter
- converter smelting
- high pressure
- pressure nitrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
A converter smelting slag pressing method comprises: blowing high pressure nitrogen into a converter by an oxygen lance, and destroying foamed slag by high pressure nitrogen jet to realize the purpose of smooth slag pouring. The method of the invention solves the problem that liquid slag is severe in foaming and cannot be poured out smoothly, needs no feeding of slag materials into the converter for slag pressing, saves the resources, does not increase the smelting cost, and is simple in operation. The method of the invention can be widely used as a steel-making converter smelting slag pressing method.
Description
Technical field:
The present invention relates to the improvement of steel-making converter smelting technology.
Background technology:
In converter steelmaking process, need deslagging operation midway, but liquid steel slag foamed is serious sometimes, can not pour out smoothly slag, need presses slag operation to dropping into slag charge in stove, waste resource, increases smelting cost.Address this problem and become urgent need.
Summary of the invention:
Overcome the deficiencies in the prior art, propose a kind of liquid steel slag foamed and spumescence slag is destroyed, realized when serious the converter smelting of smooth deslagging and press slag method.Converter smelting presses slag method to be: in stove, be blown into high pressure nitrogen with oxygen rifle, utilize high pressure nitrogen jet, by spumescence slag destruction, reach the object of smooth deslagging.The invention solves liquid steel slag foamed and seriously can not pour out smoothly the problem of slag, do not need to drop into slag charge in stove and press slag, saved resource, do not increase smelting cost, simple to operate.
Embodiment:
A most preferred embodiment of the present invention, smelts midway, before deslagging, if judge that slag foamed is serious, in stove, is blown into high pressure nitrogen by oxygen rifle, utilizes high pressure nitrogen jet that spumescence slag is destroyed, and can pour out smoothly slag.
Claims (1)
1. converter smelting is pressed a slag method, it is characterized in that: in stove, be blown into high pressure nitrogen with oxygen rifle, utilize high pressure nitrogen jet, by spumescence slag destruction, reach the object of smooth deslagging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440505.0A CN103805732A (en) | 2012-11-07 | 2012-11-07 | Converter smelting slag pressing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440505.0A CN103805732A (en) | 2012-11-07 | 2012-11-07 | Converter smelting slag pressing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103805732A true CN103805732A (en) | 2014-05-21 |
Family
ID=50703116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210440505.0A Pending CN103805732A (en) | 2012-11-07 | 2012-11-07 | Converter smelting slag pressing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103805732A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480246A (en) * | 2014-12-02 | 2015-04-01 | 天津钢铁集团有限公司 | Slag control method of dephosphorization foaming slag in converter double-slag-process steel making |
| CN111944945A (en) * | 2020-07-31 | 2020-11-17 | 邯郸钢铁集团有限责任公司 | Direct tapping method for converter without turning up converter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202047090U (en) * | 2011-03-28 | 2011-11-23 | 北大方正集团有限公司 | Air pressure breaking slag pressing lance |
| CN102719596A (en) * | 2012-03-29 | 2012-10-10 | 鞍钢股份有限公司 | Method for melting converter bottom by remaining converter slags |
-
2012
- 2012-11-07 CN CN201210440505.0A patent/CN103805732A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202047090U (en) * | 2011-03-28 | 2011-11-23 | 北大方正集团有限公司 | Air pressure breaking slag pressing lance |
| CN102719596A (en) * | 2012-03-29 | 2012-10-10 | 鞍钢股份有限公司 | Method for melting converter bottom by remaining converter slags |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480246A (en) * | 2014-12-02 | 2015-04-01 | 天津钢铁集团有限公司 | Slag control method of dephosphorization foaming slag in converter double-slag-process steel making |
| CN104480246B (en) * | 2014-12-02 | 2016-05-25 | 天津钢铁集团有限公司 | A kind of control slag method of dephosphorization foamed slag in converter double slag process steel-making |
| CN111944945A (en) * | 2020-07-31 | 2020-11-17 | 邯郸钢铁集团有限责任公司 | Direct tapping method for converter without turning up converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103060522A (en) | Slag forming agent for dephosphorization of medium-high-phosphorus semisteel and preparation method of slag forming agent | |
| CN104531949A (en) | Method for preventing KR stirring and desulphurizing slag tank from being adhered | |
| CN103805732A (en) | Converter smelting slag pressing method | |
| TW200738889A (en) | Injection lance and injection lance equipment for refining process, hot metal desiliconization process, and hot metal pretreatment process | |
| CN104099440B (en) | Semi-steel making flue dust control method and Semi-steel making method | |
| CN104531953A (en) | Refining argon blowing method applied to SPHC steel grade | |
| CN104480244A (en) | Method for reducing iron content in converter smelting endpoint slag | |
| CN101391287A (en) | Method for controlling steel-slag performance in continuous-casting pouring basket | |
| CN105506219A (en) | Aluminum-free heat generating agent used for chemical heating outside molten steel furnace and preparation method of aluminum-free heat generating agent | |
| CN204975299U (en) | Steelmaking continuous casting is with middle package pushing off slag wall | |
| CN204550650U (en) | A kind of aluminum calcium ferrum deoxidizer | |
| CN202898458U (en) | Liquid iron desulfuration lime discharging pipe | |
| CN203343426U (en) | Steel ladle edge forsterite carbon brick | |
| CN203390191U (en) | Continuous casting steel ladle fire retarding coating | |
| CN207452175U (en) | A kind of refining furnace microalloy adding apparatus | |
| CN104278131A (en) | Recycling method for refining slags | |
| CN218435831U (en) | Slag stopper for converter tapping | |
| CN109468428B (en) | Method for controlling phosphorus content in high-strength and high-toughness heavy rail steel by converter | |
| CN103276138A (en) | Ladle slag modification method | |
| CN205205169U (en) | Steel scrap is melting arrangement once more | |
| CN204975307U (en) | Steel ladle | |
| CN202808864U (en) | Furnace-rear steel ladle argon blowing device | |
| CN203021604U (en) | Moss-shaped ferro-silicon-aluminum composite deoxidization block for steelmaking | |
| CN202925050U (en) | Connecting nozzle brick | |
| CN204550651U (en) | A kind of aluminum calcium ferrum deoxidizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |