CN202757460U - Novel oxygen lance nozzle - Google Patents
Novel oxygen lance nozzle Download PDFInfo
- Publication number
- CN202757460U CN202757460U CN 201220369255 CN201220369255U CN202757460U CN 202757460 U CN202757460 U CN 202757460U CN 201220369255 CN201220369255 CN 201220369255 CN 201220369255 U CN201220369255 U CN 201220369255U CN 202757460 U CN202757460 U CN 202757460U
- Authority
- CN
- China
- Prior art keywords
- oxygen
- oxygen lance
- lance nozzle
- novel
- shower nozzle
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model discloses a novel oxygen lance nozzle which comprises a main oxygen way and multiple spraying ducts communicated with the main oxygen way. The center line of the spraying ducts inclines outwards relative to that of the main oxygen way, and a nickel-chrome alloy layer covers on a lower end face of the oxygen lance nozzle. When the novel oxygen lance nozzle is in use, oxygen passes through the main oxygen way and the spraying ducts into smelt molten steel, a bigger oxygen blowing area is provided, tangential energy is generated, stirring between furnace slag and molten steel is improved, occurrence of splashing is reduced, efficiency of iron and steel smelting and decarbonization is improved, and time for slugging and pure oxygen blowing can be shortened. The nickel-chrome alloy layer is arranged on the lower end face of the oxygen lance nozzle, so that the lower end face of the oxygen lance nozzle can be protected well due to high intensity and high corrosion resistance of nickel-chrome alloy, and the service life of the oxygen lance nozzle is further prolonged.
Description
Technical field
The utility model relates to the Novel top oxygen-blowing gun shower nozzle in a kind of smelting iron and steel, belongs to the accessory technical field of smelting with stove.
Background technology
Swirl flow nozzle of refining furnace is the key position of refining furnace eddy flow top rifle, and refining furnace eddy flow top rifle is the important step of vacuum cycle rectification systems, and this refining furnace eddy flow top rifle has the several functions such as heating by ignition, oxygen decarburization.Since the vacuum cycle refining equipment almost can refining the steel grade of white silk in distress, comprise ultrapure steel, ultrapure ultra-low-carbon steel, ultrapure low carbon stainless steel etc., provide molten steel by electric furnace or converter, but after refining, provide composition and the well behaved high-quality molten steel of the satisfactory continuous casting of temperature for continuous casting, it is the important step of optimizing the process for making flow process, therefore, the good improvement and design for swirl flow nozzle of refining furnace is most important.
The top blow oxygen lance shower nozzle of converter current steel-making is in course of injection, the lower surface environment of shower nozzle is abominable, environment temperature is high, and since iron and steel in decarbonizing process, fusant produces and splashes, make the shower nozzle lower surface easily produce erosion, the shower nozzle lower surface is damaged after using, affect flow angle, the precision of spray orifice, smelting, the decarburization time of iron and steel are affected, not only frequent needs replacing shower nozzle, and the smelting of iron and steel, decarburization efficient all are greatly affected, and this is extremely uneconomic for steel-making enterprise.
Renewal along with technology, the tradition oxygen gun sprayer has become porous by the single hole in past, be modified into monoblock cast or Combined nozzle by forging shower nozzle, but because the air-flow that basically is perpendicular to liquid steel level that common molten iron pneumatic steelmaking provides with oxygen gun sprayer, conversion zone is little when changing slag, return during slow with regard to existenceizations slag speed when smelting, smelting dried, splash is serious, dephosphorization effect is poor, oxygen consumes the problems such as larger, has limited further optimization and the development of semi-steel making converter technical-economic index.
Summary of the invention
For above-mentioned weak point of the prior art, the utility model aims to provide a kind of long service life, the high oxygen gun sprayer of steel-making efficient.
In order to achieve the above object, the technical solution of the utility model: a kind of Novel oxygen lance shower nozzle, a plurality of injections duct that this oxygen gun sprayer comprises total oxygen path and is connected with this total oxygen path, wherein, the center line in described injection duct is outward-dipping with respect to the center line of described total oxygen path; Be coated with a nichrome layer on the lower surface of described oxygen gun sprayer.
The beneficial effects of the utility model: oxygen is through described total oxygen path, respectively spray the duct to smelting molten steel, wider oxygen blast zone is provided, and the tangential minute energy of generation, improve the stirring between slag and the molten steel, reduce simultaneously the generation of splash phenomenon, improve smelting iron and steel, decarburization efficient, can shortening slag time and the time that blows pure oxygen.The nichrome layer that arranges in the oxygen gun sprayer lower surface, high strength and the corrosion resistance of dependence nichrome make the oxygen gun sprayer lower surface be subject to good protection, further improve the service life of oxygen gun sprayer.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the end spout difference schematic diagram of oxygen gun sprayer among Fig. 1.
The specific embodiment
Further describe the utility model below in conjunction with specific embodiment and accompanying drawing.
A kind of Novel oxygen lance shower nozzle as depicted in figs. 1 and 2 comprises total oxygen path 10 and a plurality of injections duct 34 that is connected with this total oxygen path 10, and wherein, the center line in described injection duct 34 is outward-dipping with respect to the center line of described total oxygen path 10; Be coated with a nichrome layer 50 on the lower surface of described oxygen gun sprayer.
For so that each sprays duct 34 is evenly arranged, each is sprayed duct 34 settings even circle distribution centered by the center line of described total oxygen path 10 become radial arrangement, specifically have angle 8 °～18 ° with the axis in described injection duct 34 and the axis of total oxygen path 10, the axis in preferred this injection duct 34 of this example becomes 15 ° of angles with the axis of total oxygen path 10, thereby can guarantee not interfere between the injection duct 34 and keep suitable spray regime and injection intensity.
Nichrome layer 50 thickness that oxygen gun sprayer lower surface in the utility model covers are 1.2～1.8mm.Utilize high strength and the corrosion resistance of nichrome, make the oxygen gun sprayer lower surface be subject to good protection, improve the service life of shower nozzle.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, all will change on the specific embodiment and range of application, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. Novel oxygen lance shower nozzle, a plurality of injections duct that this oxygen gun sprayer comprises total oxygen path and is connected with this total oxygen path is characterized in that: the center line in described injection duct is outward-dipping with respect to the center line of described total oxygen path; Be coated with a nichrome layer on the lower surface of described oxygen gun sprayer.
2. Novel oxygen lance shower nozzle according to claim 1, it is characterized in that: the thickness of described nichrome layer is 1.2～1.8mm.
3. Novel oxygen lance shower nozzle according to claim 1 is characterized in that: described injection duct centered by the center line of described total oxygen path evenly circle distribution become radial arrangement.
4. according to claim 1 or 3 described Novel oxygen lance shower nozzles, it is characterized in that: the axis in described injection duct and the axis of total oxygen path have angle 8 °～18 °.
5. Novel oxygen lance shower nozzle according to claim 4, it is characterized in that: the angle between the axis in described injection duct and the axis of described total oxygen path is 15 °.
6. Novel oxygen lance shower nozzle according to claim 1, it is characterized in that: described injection duct comprises aditus laryngis section and expansion segment, described aditus laryngis section is straight hole, these aditus laryngis section two ends connect respectively described total oxygen path, expansion segment, and the aperture of described expansion segment increases towards the outlet of described expansion segment gradually from described aditus laryngis section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369255 CN202757460U (en) | 2012-07-28 | 2012-07-28 | Novel oxygen lance nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369255 CN202757460U (en) | 2012-07-28 | 2012-07-28 | Novel oxygen lance nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202757460U true CN202757460U (en) | 2013-02-27 |
Family
ID=47736634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220369255 Expired - Fee Related CN202757460U (en) | 2012-07-28 | 2012-07-28 | Novel oxygen lance nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202757460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232838A (en) * | 2014-09-19 | 2014-12-24 | 姜利祥 | Red copper oxygen lance sprayer |
-
2012
- 2012-07-28 CN CN 201220369255 patent/CN202757460U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232838A (en) * | 2014-09-19 | 2014-12-24 | 姜利祥 | Red copper oxygen lance sprayer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102220453B (en) | Dephosphorization method of semi-steel | |
| CN108642234A (en) | A kind of single channel double structure oxygen lance nozzle and converting process | |
| CN104263877B (en) | In process the converter of high phosphorus hot metal dust, air blowing composite spray gun and using method | |
| CN102191352A (en) | Coherent jet lance | |
| CN201660655U (en) | High-efficiency oxygen lance nozzle of converter | |
| CN202757460U (en) | Novel oxygen lance nozzle | |
| CN212357291U (en) | Oxygen lance nozzle with efficient dephosphorization | |
| CN111763794B (en) | Method for smelting stainless steel by mixed blowing of chromium ore powder and carbon powder in TSR converter | |
| CN106282481A (en) | A kind of double fluid stock oxygen rifle and using method thereof | |
| CN202755018U (en) | Electric arc furnace top oxygen spraying gun device | |
| CN113234884A (en) | Method for solving interference between positions of top-blown gas and bottom-blown lance of converter | |
| CN105486091A (en) | Oxygen lance for smelting of molten pool | |
| CN2245064Y (en) | Oxygen-gas spray gun for producing iron and steel | |
| CN201534861U (en) | Converter dephosphorization oxygen lance nozzle | |
| CN201476584U (en) | Carbon-oxygen spray gun for electric furnace steel making | |
| CN110885933B (en) | Method for strengthening smelting effect of bottom-blowing smelting furnace and improving melt splashing | |
| CN210163472U (en) | Molten iron dephosphorization device | |
| CN202576473U (en) | Supersonic flat oxygen lance for electric furnace | |
| CN105969937A (en) | Electric arc furnace steelmaking beam concentration oxygen supply method using heat-value-variable fuel gas | |
| CN208517453U (en) | A kind of single channel double structure oxygen lance nozzle | |
| CN111850232A (en) | Oxygen lance nozzle for efficient dephosphorization and blowing process | |
| CN101929801A (en) | Oxygen lance nozzle | |
| CN201634712U (en) | Beam concentration jet-flow gun | |
| CN205205168U (en) | A low temperature hangs down ferrosilicon water oxygen rifle shower nozzle for 90 tons of converters are smelted | |
| CN215250989U (en) | Layout structure of bottom blowing brick cup for oxygen supply and powder injection at bottom of converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20180728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |