CN218842236U - Safe and efficient converter oxygen lance structure - Google Patents
Safe and efficient converter oxygen lance structure Download PDFInfo
- Publication number
- CN218842236U CN218842236U CN202223059853.1U CN202223059853U CN218842236U CN 218842236 U CN218842236 U CN 218842236U CN 202223059853 U CN202223059853 U CN 202223059853U CN 218842236 U CN218842236 U CN 218842236U
- Authority
- CN
- China
- Prior art keywords
- oxygen
- oxygen lance
- cooling water
- sprinkler body
- lance
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model discloses a safe efficient converter oxygen rifle structure, including the oxygen rifle sprinkler body, be equipped with the oxygen spraying hole in the oxygen rifle sprinkler body, the outside of oxygen rifle sprinkler body is equipped with the cooling water inner tube, and the cooling water inner tube outside is equipped with the cooling water outer tube, and the one end and the oxygen rifle sprinkler body of cooling water outer tube are connected, the oxygen rifle sprinkler body is located the oxygen import one end of spraying the oxygen hole and is connected with stainless steel's oxygen spraying pipe, oxygen spraying pipe inboard is equipped with the fire prevention insulating layer, and the oxygen spraying pipe outside is equipped with the sealing member. The utility model discloses set up the fire prevention insulating layer on stainless steel's oxygen lance inner wall, utilize its thermal-insulated fire-retardant characteristic, improve the heat resistance of oxygen lance, avoid the tempering to burn through the inner tube or damage the sealing member to reduce the harm that the oxygen lance shower nozzle tempering produced.
Description
Technical Field
The utility model relates to a safe and efficient converter oxygen lance structure.
Background
The oxygen lance is one of important equipment for converter steelmaking, and supersonic oxygen jet flow is sprayed into the converter through the oxygen lance for converter steelmaking so as to create the dynamic and thermodynamic conditions required by the converter steelmaking and achieve the metallurgical effect required by the converter steelmaking. The converter oxygen lance has extremely severe working environment, is easy to damage under the repeated action of high-temperature metal and slag heat flow in the converter, and can cause equipment and process safety accidents. In the production practice process of a steel plant, in order to improve the safety of the converter oxygen lance equipment body, some measures are taken for improvement, and a better effect is obtained.
During the production period of the converter, the oxygen lance blowing oxygen flow designed according to the 120 ton tapping amount is 24000 Nm3/h, but the actual average converter tapping amount reaches 137.5 tons, the process oxygen lance blowing oxygen flow is 26000 Nm3/h, the actual use parameters deviate from the design parameters, so that the process oxygen pressure is too high, the operation process is unstable, the oxygen lance is easy to splash and damage and the gun barrel of the oxygen lance is stuck with steel, the risk of oxygen tempering during oxygen supply can be caused, a large amount of high-pressure cooling water enters the converter from an oxygen channel after the oxygen lance is instantaneously burnt through, if the treatment is improper, explosion accidents are easily caused, and the safety of personnel and equipment is greatly threatened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a safe and efficient converter oxygen lance structure to solve the problems in the prior art.
The technical scheme adopted for achieving the purpose is that the converter oxygen lance structure with safety and high efficiency comprises an oxygen lance nozzle body, wherein an oxygen spraying hole is formed in the oxygen lance nozzle body, a cooling water inner pipe is arranged on the outer side of the oxygen lance nozzle body, a cooling water outer pipe is arranged on the outer side of the cooling water inner pipe, one end of the cooling water outer pipe is connected with the oxygen lance nozzle body, one end of the oxygen lance nozzle body, located at an oxygen inlet of the oxygen spraying hole, is connected with an oxygen spraying pipe made of stainless steel materials, a fireproof heat insulation layer is arranged on the inner side of the oxygen spraying pipe, and a sealing piece is arranged on the outer side of the oxygen spraying pipe.
Furthermore, one end of the cooling water outer pipe is welded and fixed with the oxygen lance spray head body.
Furthermore, the oxygen spraying pipe is made of 1Cr18Ni9TI stainless steel material, and one end of the oxygen spraying pipe is welded and fixed with the oxygen lance nozzle body.
Advantageous effects
Compared with the prior art, the utility model has the following advantages.
The utility model discloses a set up the fire prevention insulating layer on stainless steel's oxygen spraying pipe inner wall, utilize its thermal-insulated fire-retardant characteristic, improve the heat resistance of oxygen spraying pipe, avoid the tempering to burn through the inner tube or damage the sealing member and lead to high pressure cooling water to get into the stove by oxygen passageway to reduce the harm that the tempering of oxygen lance shower nozzle produced, have simple structure, safe effectual characteristics.
Drawings
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following embodiments and the accompanying drawings.
As shown in fig. 1, a safe and efficient converter oxygen lance structure comprises an oxygen lance nozzle body 1, an oxygen spraying hole 5 is arranged in the oxygen lance nozzle body 1, a cooling water inner pipe 3 is arranged on the outer side of the oxygen lance nozzle body 1, a cooling water outer pipe 2 is arranged on the outer side of the cooling water inner pipe 3, one end of the cooling water outer pipe 2 is connected with the oxygen lance nozzle body 1, one end of the oxygen lance nozzle body 1, which is located at an oxygen inlet of the oxygen spraying hole 5, is connected with an oxygen spraying pipe 4 made of stainless steel, a fireproof heat insulation layer 6 is arranged on the inner side of the oxygen spraying pipe 4, and a sealing piece 7 is arranged on the outer side of the oxygen spraying pipe 4.
And one end of the cooling water outer pipe 2 is welded and fixed with the oxygen lance spray head body 1.
The oxygen spraying pipe 4 is made of 1Cr18Ni9TI stainless steel materials, and one end of the oxygen spraying pipe 4 is welded and fixed with the oxygen lance spray head body 1.
The utility model provides a safe efficient converter oxygen rifle structure for the solution appears operating unstablely at converter smelting process, takes place the splash and burns the oxygen rifle and cause the oxygen rifle barrel to glue the steel, because ordinary carbon steel high temperature resistance is poor, the red hot slag of adhesion on the oxygen rifle after the splash, oxygen backfire burns oxygen lance 4 or the sealed position of high temperature damage when possibly causing for oxygen, causes the high-pressure cooling water entering in cooling water inner tube 3 and the cooling water outer tube 2 to get into by oxygen passageway entering stove. The oxygen lance is manufactured by processing a 1Cr18Ni9TI stainless steel pipe, and the fireproof heat-insulating layer is arranged on the inner wall of the oxygen lance, so that the heat resistance of the oxygen lance is improved by utilizing the heat-insulating and flame-retardant characteristics of the fireproof heat-insulating layer, the inner pipe is prevented from being burnt through by tempering, and the damage caused by tempering of a nozzle of the oxygen lance is reduced.
Claims (3)
1. The utility model provides a safe efficient converter oxygen rifle structure, includes oxygen lance sprinkler body (1), its characterized in that, be equipped with in oxygen lance sprinkler body (1) and spout oxygen hole (5), the outside of oxygen lance sprinkler body (1) is equipped with cooling water inner tube (3), and cooling water inner tube (3) outside is equipped with cooling water outer tube (2), and the one end and the oxygen lance sprinkler body (1) of cooling water outer tube (2) are connected, oxygen lance sprinkler body (1) is located the oxygen inlet one end of spouting oxygen hole (5) and is connected with stainless steel's oxygen spraying pipe (4), oxygen spraying pipe (4) inboard is equipped with fire prevention insulating layer (6), and oxygen spraying pipe (4) outside is equipped with sealing member (7).
2. The structure of the converter oxygen lance of claim 1, wherein one end of the cooling water outer pipe (2) is welded and fixed with the oxygen lance nozzle body (1).
3. The structure of the oxygen lance of the converter furnace as claimed in claim 1, wherein the oxygen lance tube (4) is made of 1Cr18Ni9TI stainless steel material, and one end of the oxygen lance tube (4) is welded and fixed with the oxygen lance nozzle body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223059853.1U CN218842236U (en) | 2022-11-18 | 2022-11-18 | Safe and efficient converter oxygen lance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223059853.1U CN218842236U (en) | 2022-11-18 | 2022-11-18 | Safe and efficient converter oxygen lance structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218842236U true CN218842236U (en) | 2023-04-11 |
Family
ID=87298793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223059853.1U Active CN218842236U (en) | 2022-11-18 | 2022-11-18 | Safe and efficient converter oxygen lance structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218842236U (en) |
-
2022
- 2022-11-18 CN CN202223059853.1U patent/CN218842236U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109628689A (en) | High hot metal ratio electric furnace method for supplying oxygen | |
| CN111748673A (en) | Multifunctional oxyhydrogen burner for electric arc furnace steelmaking and energy supply control method | |
| CN218842236U (en) | Safe and efficient converter oxygen lance structure | |
| CN112941265A (en) | Slag splashing furnace protection for converter steelmaking and converter mouth oxygen lance | |
| CN208898932U (en) | A kind of auto stove-door water cooled oxygen lance | |
| CN216404443U (en) | Metallurgical equipment desulfurization system spray gun dust removal sealing device | |
| CN109680118A (en) | Coaxial double supersonic flows of oxygen coherent oxygen lances | |
| CN210624521U (en) | Refining furnace oxygen combustion gun with functions of backfire prevention and explosion prevention | |
| CN213557784U (en) | High temperature resistant, high-efficient denitration spray gun of stand wear and tear many nozzles | |
| CN216473310U (en) | High-temperature-resistant, corrosion-resistant and long-life oxygen lance nozzle | |
| CN209508311U (en) | A kind of single channel Oxygen Lance With Secondary Combustion pipette tips | |
| CN205368275U (en) | Novel blast orifice oxygen nozzle | |
| CN208901391U (en) | A kind of water cooled oxygen lance furnace gas after burner | |
| CN209706577U (en) | A kind of oxygen lance nozzle of adjustable the amount of injection | |
| CN206828559U (en) | A kind of electric furnace carbon oxygen lance | |
| CN201525857U (en) | Oxygen lance injection head for cleaning furnace mouth | |
| CN212388058U (en) | Durable multi-hole oxygen lance nozzle not easy to stick slag | |
| CN102828003B (en) | Molten steel vacuum refining top rifle | |
| CN218321471U (en) | Spray cooling structure for quickly cooling converter lining | |
| CN217103957U (en) | Oxygen lance for rapidly treating inner opening of converter | |
| CN219083160U (en) | Arrangement structure for preventing SNCR (selective non-catalytic reduction) drip from corroding boiler water-cooled wall | |
| CN208898935U (en) | A kind of high-efficiency water cooling coherent oxygen lance | |
| CN218210789U (en) | Self-heating smelting furnace gas nozzle assembly device | |
| CN220152738U (en) | Novel karduo furnace smelting gun | |
| CN213327684U (en) | Novel RH furnace roof gun structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |