CN86207587U - Multi-jet gun with three channels for steel-smelting device - Google Patents
Multi-jet gun with three channels for steel-smelting device Download PDFInfo
- Publication number
- CN86207587U CN86207587U CN 86207587 CN86207587U CN86207587U CN 86207587 U CN86207587 U CN 86207587U CN 86207587 CN86207587 CN 86207587 CN 86207587 U CN86207587 U CN 86207587U CN 86207587 U CN86207587 U CN 86207587U
- Authority
- CN
- China
- Prior art keywords
- oxygen
- steel
- spraying
- road
- main
- 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.)
- Withdrawn
Links
Images
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model discloses a porous oxygen and powder spraying device with three flowing channels, which can improve the adding waste steel quantity of the oxygen top-blow rotating furnace (including the composite converting furnace), comprising a main oxygen path, an assistant oxygen path, a powder (granule) spraying path, a spraying head and a fast top joint. The device of spraying gun series is suitable for the turning furnace of nominal 6 to 400 tons and can also be served as other powder (granule) spraying devices. The porous spraying gun of three flowing channels of the utility model has two structural forms of step type and single flat surface type with the advantages of simple structure, easy manufacture, good cooling effect and long service life of the spraying head.
Description
The utility model is a kind of employed spray oxygen spray powder equipment of top-blown oxygen converter (comprising top-bottom blowing conver) steel-making that is used for, and also can be used as other powder spraying apparatus.
The porous oxygen lance that converter steelmaking is now used has two kinds of forms, i.e. the porous oxygen lance of single channel and double flow duct.The double flow duct oxygen lance is Duoed one pair of oxygen road than the single channel oxygen lance, plays in the burning furnace gas a part of carbon monoxide (CO) (being called secondary combustion) and shortens the heat to increase the adding amount of scrap steel of converter.But, use the operation of single channel spray gun or double flow duct spray gun, the converter adding amount of scrap steel generally all is no more than 400 kilograms of/ton steel, particularly for semi-steel making, use the operation of single channel spray gun, almost can not add steel scrap in converter, both use the operation of double flow duct spray gun, the converter adding amount of scrap steel also is no more than 100 kilograms of/ton steel.
Multihole lance of the present utility model is provided with three runners, promptly main, pair the oxygen road and (grain) road that dusts.The molten steel metallurgical chemistry is reacted required oxygen by the road supply of main oxygen, and the required oxygen of furnace gas secondary combustion is by paying the supply of oxygen road, and (grain) road that dusts replenishes external heat source---carbon dust (grain) to molten steel.Carbon dust (grain) makes carbon dust (grain) puncture slag blanket and arrives molten steel surface or inner, in the molten steel surface combustion by swiftly flowing carrier gases---nitrogen, heat takes place, there is the slag blanket insulation outside, can heat molten steel effectively, and reaching increases the purpose that the steel scrap Intake Quantity is shortened the heat.So use three runner multihole lances of the present utility model, can bring up to 500 kilograms/ton more than the steel to the adding amount of scrap steel that uses common molten iron-steelmaking operation, can bring up to 250 kilograms/ton more than the steel to the adding amount of scrap steel of semi-steel making operation.
When three runner multihole lances of the present utility model use as other powder spraying apparatus, can spray powdery yellow soda ash, sodium sulfate, lime, fluorite etc.
Two kinds of structure formations of three runner multihole lances of the present utility model are shown in accompanying drawing 1,2.
Fig. 1 is step type three runner multihole lance structure iron of the present utility model, comprising A-A, B-B, three sectional views of C-C.
The characteristics of this structure are: carbon dust (grain) nozzle and main oxygen road nozzle exit are paid oxygen road jet exit on another plane basically at grade, form two steps.
High-pressure inert gas---nitrogen is delivering pulvis and is entering spray gun from the conduit 1 that dusts through rapid-acting coupling 2, by convergent-divergent channel nozzle 8, spurts into the molten bath with ultrasonic speed.Circular channel between main oxygen road outer catheter 4 and the main oxygen road inner catheter 5 is main oxygen road, and main oxygen road nozzle 9 is convergent-divergent channel (LavaL).The rapid-acting coupling of main oxygen flow stock-traders' know-how, main oxygen road are to nozzle, and velocity of discharge is a supersonic speed.Pay the oxygen flow stock-traders' know-how and pay oxygen conduit 6 and pay oxygen nozzle (common nozzle) 7, spray to weld pool surface with subsonic speed.Water coolant enters shower nozzle through the circular channel that rapid-acting coupling enters between conduit 1 and the conduit 5, comes out to flow out through the circular channel between conduit 4 and the rifle body case 3 from shower nozzle, flows out the rifle body through rapid-acting coupling again.
Pressure, flow and speed main, that pay the oxygen road all can be regulated separately.
Fig. 2 is monoplane of the present utility model formula three runner spray gun structure figure, and its centre comprises A-A, B-B, four sectional views of C-C, D-D.
The characteristics of this structure are: the exit of main oxygen nozzle, pair oxygen nozzle and carbon dust (grain) nozzle basically at grade.
High-pressure inert gas--nitrogen is delivering pulvis and is entering spray gun from the conduit 1 that dusts through rapid-acting coupling 2, by convergent-divergent channel nozzle 8, spurts into the molten bath with ultrasonic speed.Oxygen enters shower nozzle from the circular channel between main oxygen road outer catheter 4 and the main oxygen road inner catheter 5, in shower nozzle punishment main oxygen nozzle 6(convergent-divergent channel LavaL is arranged) and pay the common convergent divergent channel of oxygen nozzle 7(), oxygen is injected the molten bath with supersonic speed and subsonic speed respectively.Water coolant enters the circular channel of dusting between conduit 9 and the main oxygen road inner catheter 5 through rapid-acting coupling and enters shower nozzle, comes out to flow out through the circular channel between main oxygen road outer catheter 4 and the rifle body case 3 from shower nozzle, flows out the rifle body through rapid-acting coupling again.
Main, as to pay oxygen road nozzle oxygen outlet pressure, flow and speed is determined during by design.
The shower nozzle material of three runner multihole lances of two kinds of structural shapes adopts red copper or high temperature steel (stainless steel) through forging or casting and make.Conduit main, that pay the oxygen road and (grain) road that dusts all adopts the normal carbon steel pipe.The spray gun of step type, its pair oxygen channel showerhead material adopts red copper or high temperature steel (stainless steel).
Advantages such as three runner multihole lances of two kinds of forms of the present utility model all have simple in structure, are easy to processing and manufacturing, and good cooling results and shower nozzle life-span are long, its serial equipment is applicable to 6 tons to 400 tons converters of nominal tonnage.
Claims (2)
1, a kind of by shower nozzle, top rapid-acting coupling 2 with pay oxygen nozzle 7 and conduit forms, be used for the porous oxygen lance that top-blown oxygen converter (comprising top-bottom blowing conver) steel-making is used, it is characterized in that having three runners makes carbon dust (grain) stream thigh, main oxygen flow thigh, a pair oxygen flow thigh spray in same spray gun, and step type and two kinds of structure formations of monoplane formula are arranged.
2, three runner multihole lances according to claim 1 is characterized in that the shower nozzle material adopts red copper or high temperature steel (stainless steel) through forging or casting and make, conduit main, that pay the oxygen road and (grain) road that dusts all adopts the normal carbon steel pipe, the spray gun of step type, its pair oxygen channel showerhead material are also with red copper or high temperature steel (stainless steel).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86207587 CN86207587U (en) | 1986-10-29 | 1986-10-29 | Multi-jet gun with three channels for steel-smelting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86207587 CN86207587U (en) | 1986-10-29 | 1986-10-29 | Multi-jet gun with three channels for steel-smelting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86207587U true CN86207587U (en) | 1988-02-10 |
Family
ID=4809980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86207587 Withdrawn CN86207587U (en) | 1986-10-29 | 1986-10-29 | Multi-jet gun with three channels for steel-smelting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86207587U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320129C (en) * | 2002-04-24 | 2007-06-06 | 英国氧气集团有限公司 | Lance for injecting particulate material into liquid metal |
| CN106086289A (en) * | 2016-08-01 | 2016-11-09 | 朱荣 | A kind of top blow oxygen lance is used to dust the method for making steel of smelting stainless steel mother liquid and device |
-
1986
- 1986-10-29 CN CN 86207587 patent/CN86207587U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320129C (en) * | 2002-04-24 | 2007-06-06 | 英国氧气集团有限公司 | Lance for injecting particulate material into liquid metal |
| CN106086289A (en) * | 2016-08-01 | 2016-11-09 | 朱荣 | A kind of top blow oxygen lance is used to dust the method for making steel of smelting stainless steel mother liquid and device |
| CN106086289B (en) * | 2016-08-01 | 2018-05-29 | 朱荣 | A kind of method for making steel and device of the smelting stainless steel mother liquid that dusted using top blow oxygen lance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1873287B (en) | Arousing vortex in airflow | |
| JP5644355B2 (en) | Hot metal refining method | |
| US6565800B2 (en) | Apparatus for injecting solid particulate material into a vessel | |
| JPS58185707A (en) | Refining method of steel | |
| CN2853808Y (en) | High-efficient oxygen-blown lance spray of converter | |
| CN212357291U (en) | Oxygen lance nozzle with efficient dephosphorization | |
| CN86207587U (en) | Multi-jet gun with three channels for steel-smelting device | |
| CN1772927A (en) | Multihole oxygen gun sprayer for converter | |
| CN105441624B (en) | Gun head structure and method for regulating converter top blown oxygen flow by double-path oxygen flow | |
| CN108977620B (en) | Single-channel secondary combustion oxygen lance for improving steel scrap ratio of converter and use method thereof | |
| JPS58193309A (en) | Method for refining steel | |
| CN209602610U (en) | Copper making continuous-blowing furnace oxygen lance nozzle | |
| CN105219909B (en) | Molten iron desulfuring spray gun is directly blown for magnesium desulfurizer | |
| CN210163472U (en) | Molten iron dephosphorization device | |
| CN2095201U (en) | Premixing type coal oxygen mine fusion agent spray gun | |
| CN111850232A (en) | Oxygen lance nozzle for efficient dephosphorization and blowing process | |
| RU2083682C1 (en) | Lance for metal blowing | |
| CN109628754A (en) | Copper making continuous-blowing furnace oxygen lance nozzle | |
| CN206828560U (en) | A kind of coherent oxygen lance | |
| CN215103369U (en) | Long-life air-cooled molten iron desulfurization spray gun | |
| CN2127939Y (en) | Multi-function oxygen lance head for small oxygen top-blown rotary converter | |
| CN2237644Y (en) | Water-cooled oxygen gun for arc furnace | |
| CN2096570U (en) | Double-decker shunt oxygen lance for converting steel | |
| CN216427324U (en) | Converter porous oxygen lance with central pipe | |
| CN2145793Y (en) | Three-layered split-flow oxygen lance for steelmaking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |