CN2184700Y - Multi-hole oxygen gun jet for casting - Google Patents
Multi-hole oxygen gun jet for casting Download PDFInfo
- Publication number
- CN2184700Y CN2184700Y CN 94225275 CN94225275U CN2184700Y CN 2184700 Y CN2184700 Y CN 2184700Y CN 94225275 CN94225275 CN 94225275 CN 94225275 U CN94225275 U CN 94225275U CN 2184700 Y CN2184700 Y CN 2184700Y
- Authority
- CN
- China
- Prior art keywords
- oxygen
- hole
- utility
- casting
- jet
- 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
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Nozzles (AREA)
Abstract
The utility model relates to a multi-hole oxygen gun jet for casting, particularly the improvement of an oxygen gun jet of steel facilities. The oxygen hole is arranged in the concentric circles of the same or different diameters along the circumferential direction. The amount of the oxygen hole is from five to twelve, the shape is standard laval-shaped, and the hole wall is in a curve shape. The utility model decreases the interference among oxygen streams and enhances agitation power. The percussion area of the oxygen jet stream is obviously enlarged. The utility model has the advantages of improving slugging condition, favourably improving oxygen delivery capacity, enlarging intensity of the oxygen supply, increasing slugging, reducing splashing, stabilizing operation, making smelting smooth and prolonging the service life of the nozzle.
Description
The utility model casting Multi-pore oxygen lance nozzle relates to the improvement to oxygen steelmaking equipment oxygen lance blow head.
The above casting in 5 holes that oxygen steelmaking is used oxygen lance blow head, be arranged at present has porous shape around the hole in the middle of the shower nozzle more.This decoration form, the phase mutual interference between each Oxygen Flow thigh is bigger, makes the velocity attenuation of oxygen jet very fast, has reduced the impact agitation energy; Simultaneously, impact area is less, and the influenceization slag when high oxygen supply intensity blows, causes splash easily, influences metallurgical effect, and the shower nozzle life-span also decreases.Make the superiority of porous nozzle not to be not fully exerted.And the shape of oxygen spray orifice all is simple and easy " Lavalle " type, and expansion segment is a cone, and hole wall is a linear pattern, and the power loss of supersonic airstream in spray orifice is bigger, the poor quality of spray orifice outlet oxygen jet, and the rate of decay is fast, is difficult to reach design requirements.
The purpose of the utility model casting Multi-pore oxygen lance nozzle is for oxygen steelmaking provides a kind of Multi-pore oxygen lance nozzle, to overcome the defective that original technology exists, improves metallurgical effect.
The utility model casting Multi-pore oxygen lance nozzle is by oxygen pipe, oxygen post, water eliminator, outer tube, oxygen hole and end, adopt industrial pure copper to form through monoblock casting, it is characterized in that: casting Multi-pore oxygen lance nozzle oxygen hole along the circumferential direction is arranged on the concentric(al) circles of identical or different diameter, the oxygen number of perforations is 5-12, the angle of the axis in each oxygen hole and shower nozzle medullary ray angle is identical or different, the oxygen hole shape is standard " Lavalle " type, and hole wall is a shaped form.
The oxygen hole that the utility model casting Multi-pore oxygen lance nozzle is along the circumferential direction arranged has reduced the interference between each Oxygen Flow thigh, has given full play to the effect of porous nozzle; The hole wall that the utility model casting Multi-pore oxygen lance nozzle has is a shaped form, standard " Lavalle " oxygen spray orifice, guaranteed that supersonic airstream is to go on the direction that the loss of minimum is transferred with the spray orifice axis parallels, obtain uniformly smooth supersonic airstream in the spray orifice exit, can reach design requirements well.Thereby reduced power loss, under same pressure, accelerated the speed that oxygen jet impacts metal pool, strengthened whipping force; Under same high rifle position, the impact area of oxygen jet obviously strengthens, and has significantly improved change slag condition, helps when strengthening oxygen supply intensity, changing slag improving oxygen delivery capacity in advance, reduces splash, and stable operation is carried out smelting smoothly; Improved the work-ing life of shower nozzle simultaneously.
Fig. 1 is 5 hole oxygen lance blow head sectional views.Fig. 2 is 6 hole oxygen lance blow head oxygen pore distribution figure.Fig. 3 is a curved wall oxygen hole sectional view.Among the figure: (1) oxygen pipe, (2) oxygen post, (3) water eliminator, (4) outer tube, (5) oxygen hole, (6) end.
Embodiment 1:
The utility model casting Multi-pore oxygen lance nozzle can be made into the oxygen lance blow head of 5-12 hole periphery.5 hole shower nozzles with Fig. 1 are example, 5 oxygen holes (5) are 72 degree and are evenly distributed on the concentric(al) circles of same diameter, the angle of oxygen axially bored line and shower nozzle medullary ray all is 12 degree, oxygen jet equals speed directive metal pool from standard " Lavalle " spray orifice of curved wall of 2.05 with Mach number, finish main steel-making chemical reaction.Compare with original technology under the equal conditions, the interference reduction between each stream thigh, 60 meter per second line of equal velocity are separated fully, and power loss is little, helps giving full play to the impact stirring action of oxygen jet; Under normal blowing pressure, the velocity attenuation curve is approaching, and the fluctuation of pressure is less to the influence of jet fluidised form, helps stable operation; Under same rifle position, impact area increases, and the impact area during high rifle bit manipulation can increase 30%, has obviously improved change slag condition, helps reducing splash when increasing oxygen supply intensity improving oxygen pressure; The shower nozzle life-span also obviously improves.
Embodiment 2:
See Fig. 2.Cast 6 hole periphery oxygen lance blow heads, the standard of 6 curved wall " Lavalle " type oxygen hole is divided into two groups, be arranged on two concentric(al) circless of different diameter, made full use of the finite space on the shower nozzle, the angle of the axis in two groups of oxygen holes and shower nozzle medullary ray respectively is respectively 15 degree and 11 degree, make effective impact area obviously increase, the exit diameter in two groups of oxygen holes is respectively 27 millimeters and 19 millimeters, and oxygen-supplying amount has nothing in common with each other.All the other are with embodiment 1.
Claims (1)
1, the utility model casting Multi-pore oxygen lance nozzle is by oxygen pipe, oxygen post, water eliminator, outer tube, oxygen hole and end, adopt industrial pure copper to form through monoblock casting, it is characterized in that: casting Multi-pore oxygen lance nozzle oxygen hole along the circumferential direction is arranged on the concentric(al) circles of identical or different diameter, the oxygen number of perforations is 5-12, the angle of the axis in each oxygen hole and shower nozzle medullary ray angle is identical or different, the oxygen hole shape is standard " Lavalle " type, and hole wall is a shaped form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94225275 CN2184700Y (en) | 1994-02-04 | 1994-02-04 | Multi-hole oxygen gun jet for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94225275 CN2184700Y (en) | 1994-02-04 | 1994-02-04 | Multi-hole oxygen gun jet for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2184700Y true CN2184700Y (en) | 1994-12-07 |
Family
ID=33838507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94225275 Expired - Fee Related CN2184700Y (en) | 1994-02-04 | 1994-02-04 | Multi-hole oxygen gun jet for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2184700Y (en) |
-
1994
- 1994-02-04 CN CN 94225275 patent/CN2184700Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5129583A (en) | Low pressure loss/reduced deposition atomizer | |
| CN110578032B (en) | Large converter blowing process method | |
| EP0802262B1 (en) | Converter top-blow refining method having excellent decarburization characteristics and top-blow lance for converter | |
| CN2184700Y (en) | Multi-hole oxygen gun jet for casting | |
| CA2397551C (en) | Converter oxygen blowing method and upward blowing lance for converter oxygen blowing | |
| CN201006882Y (en) | Oxygen spray pistol of revolving furnace structure | |
| JP3496522B2 (en) | Top blowing lance for refining molten metal | |
| CA1338688C (en) | Oxygen injection lance | |
| CN105441624A (en) | Lance head structure and method for double-oxygen-flow adjustment of top blowing oxygen flow rate of converter | |
| CN2366420Y (en) | Nozzle of oxygen lance for large scale converter | |
| CN215713117U (en) | Phi 245 large-flow oxygen lance nozzle | |
| CN2603809Y (en) | Oxygen spray pistol of revolving furnace | |
| CN215481039U (en) | Reducing oxygen lance head of converter | |
| CN2171599Y (en) | Split-flow oxygen gun sprinkler head for covertering steel | |
| CN205313599U (en) | Rifle head structure of converter top blowing oxygen flow is adjusted to double - circuit oxygen flow | |
| CN200955058Y (en) | Spiral oxygen-gun nozzle | |
| CN210367764U (en) | Converter oxygen lance nozzle capable of reducing oxygen consumption | |
| CN2603810Y (en) | Oxygen spray pistol of revolving furnace | |
| CN215250980U (en) | Converter oxygen lance nozzle | |
| CN2127939Y (en) | Multi-function oxygen lance head for small oxygen top-blown rotary converter | |
| JPH08269530A (en) | Top blowing lance | |
| US6033621A (en) | Oxygen lance head for treating molten masses | |
| SU956571A1 (en) | Multinozzle tuyere for metal blasting | |
| KR20230098865A (en) | Treatment methods for treatment of molten metal and/or slag in metallurgical tanks and metallurgical installations for treatment of molten metal | |
| JPS5970709A (en) | Spiral conduit for gas blowing tuyere for refining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |