CN215250984U - Converter bottom blowing spray gun alarm device - Google Patents
Converter bottom blowing spray gun alarm device Download PDFInfo
- Publication number
- CN215250984U CN215250984U CN202120848676.1U CN202120848676U CN215250984U CN 215250984 U CN215250984 U CN 215250984U CN 202120848676 U CN202120848676 U CN 202120848676U CN 215250984 U CN215250984 U CN 215250984U
- Authority
- CN
- China
- Prior art keywords
- bottom blowing
- spray gun
- pipe
- alarm
- 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
Abstract
The utility model provides a converter bottom blowing spray gun alarm device, including the bottom blowing spray gun, the inside of bottom blowing spray gun is equipped with one-level warning pipe and second grade warning pipe, the one-level warning pipe is the annular and distributes, the second grade warning pipe is the same with the distribution form of one-level warning pipe, the one-level warning pipe all has certain distance with rifle head, the second grade warning pipe of bottom blowing spray gun. The utility model discloses can control bottom blowing technology high-efficiently safely, the bottom of accurate control converter corrodes speed, ensures the security of bottom blowing spray gun, and furthest exerts the bottom blowing life-span and the furnace age is synchronous.
Description
Technical Field
The utility model belongs to the technical field of mining industry is smelted, a converter bottom blowing spray gun alarm device is related to.
Background
The rising of the oxygen supply and powder injection process at the bottom of the converter can greatly strengthen the stirring effect of a converter molten pool, promote the balance of slag and steel, reduce the carbon-oxygen deposit of molten steel at the end point and improve the dephosphorization and desulfurization efficiency of the converter, thereby reducing the consumption of steel materials, slagging materials and deoxidation alloy in the converter steelmaking process.
The bottom blowing spray gun bears a series of powder spraying and oxygen supplying operations, is a key element of the oxygen supplying and powder spraying process at the bottom of the converter, determines the service life of the bottom blowing spray gun to be smoothly carried out, determines the furnace life of the converter, efficiently and safely carries out the bottom blowing process, accurately monitors the corrosion rate of the bottom of the converter, ensures the safety of the bottom blowing spray gun, and furthest plays the service life of the bottom blowing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a converter bottom blowing spray gun alarm device to the problem that prior art exists to satisfy converter bottom blowing powder injection steelmaking technology safe operation's needs.
Therefore, the utility model adopts the following technical proposal:
the converter bottom blowing spray gun alarm device comprises a bottom blowing spray gun, wherein a first-stage alarm pipe and a second-stage alarm pipe are arranged inside the bottom blowing spray gun, the first-stage alarm pipe is distributed annularly, the second-stage alarm pipe is the same as the first-stage alarm pipe in distribution form, and the first-stage alarm pipe and a gun head of the bottom blowing spray gun and the second-stage alarm pipe are both at a certain distance.
Furthermore, a blowing pipe is arranged in the bottom blowing spray gun, a bottom blowing brick cup is arranged outside the bottom blowing spray gun, a furnace bottom magnesia carbon brick is arranged outside the bottom blowing brick cup, and a furnace bottom slag layer is arranged at the upper part of the bottom blowing brick cup.
Furthermore, the distance between the first-stage alarm pipe and the gun head of the bottom blowing spray gun is 200mm, and the distance between the first-stage alarm pipe and the second-stage alarm pipe is 250 mm.
Furthermore, the first-level alarm pipe and the second-level alarm pipe are both stainless steel pipes with the diameter of 4mm, the wall thickness of 1mm and the center hole of 2 mm.
Further, the furnace bottom slag layer comprises lime, limestone, light-burned dolomite, raw dolomite, coal powder, ferric oxide powder and the like.
The beneficial effects of the utility model reside in that:
the utility model discloses can realize the control and the accurate forecast to spray gun erosion rate, and then realize the safe operation of converter condition, in addition, the spray gun can realize once or change many times through online control, solves bottom blowing spray gun and converter age synchronous implementation technology and breaks through.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-bottom blowing spray gun, 1 a-blowing pipe, 2-first level alarm pipe, 3-second level alarm pipe, 4-bottom blowing brick cup, 5-furnace bottom magnesia carbon brick and 6-furnace bottom slag layer.
Detailed Description
The technical solution of the present invention will be described below with reference to the accompanying drawings and implementation methods.
As shown in fig. 1, a converter bottom blowing spray gun alarm device comprises a bottom blowing spray gun 1, wherein a first-stage alarm pipe 2 and a second-stage alarm pipe 3 are arranged inside the bottom blowing spray gun 1, the first-stage alarm pipe 2 and the second-stage alarm pipe 3 are distributed annularly, and both the first-stage alarm pipe 2 and the second-stage alarm pipe are stainless steel pipes with the diameter of 4mm, the wall thickness of 1mm and the center hole of 2 mm; in addition, the distance between the first-stage alarm pipe 2 and the gun head of the bottom blowing spray gun 1 is 200mm, and the distance between the first-stage alarm pipe 2 and the second-stage alarm pipe 3 is 250 mm.
The inside of bottom-blowing spray gun 1 is equipped with jetting pipe 1a, and the outside is equipped with bottom-blowing brick cup 4, and the outside of bottom-blowing brick cup 4 is equipped with stove bottom magnesia carbon brick 5, and the upper portion is equipped with stove bottom slag blanket 6, and further, stove bottom slag blanket 6 includes lime, lime stone, light burned dolomite, raw dolomite, buggy, iron oxide powder etc..
The utility model discloses as follows at the use step:
a. before the bottom blowing process of the converter is implemented, the bottom blowing seat bricks are built in advance according to the design arrangement in the converter building process, the 100-200 furnaces are smelted after the furnace is opened, after a carbon skeleton is formed on the surface of the magnesia carbon brick, the holes are drilled on the bottom blowing seat bricks, the bottom blowing spray gun is replaced, and the bottom blowing spray gun is installed in place;
b. the pressure of an external connecting pipe is adjusted to 10Mpa, the converter carries out bottom blowing powder spraying operation, the sprayed gas can be (oxygen, nitrogen, argon, carbon dioxide or mixed gas according to a certain proportion) or slag-making materials for metallurgy (lime, limestone, light-burned dolomite, raw dolomite, coal powder, FeO powder or mixed slag according to a certain proportion), and good metallurgical effect is realized;
c. when the erosion amount of the spray gun reaches a certain numerical value, the annular or point-distributed alarm pipe arranged in the spray gun is damaged by melting, nitrogen in the first-stage alarm pipe 2 is discharged under the action of pressure to generate a certain flow, the flow is detected by a flow meter arranged on a pipeline, and an alarm prompt is realized on a computer monitoring picture, so that engineering technicians can take measures to adjust the flow conveniently;
d. when the continuous erosion of the spray gun reaches a certain value, the nitrogen in the secondary alarm pipe 3 is discharged under the action of pressure, a certain flow is generated and detected by a flow meter arranged on a pipeline, the alarm prompt is realized on a computer monitoring picture, and an engineer decides the time for blowing out and replacing the spray gun according to the erosion rate.
Claims (5)
1. The converter bottom blowing spray gun alarm device is characterized by comprising a bottom blowing spray gun, wherein a first-stage alarm pipe and a second-stage alarm pipe are arranged inside the bottom blowing spray gun, the first-stage alarm pipe is distributed annularly, the second-stage alarm pipe and the first-stage alarm pipe are distributed in the same mode, and the first-stage alarm pipe and a gun head of the bottom blowing spray gun and the second-stage alarm pipe have certain distances.
2. The warning device for the bottom blowing lance of the converter according to claim 1, wherein the bottom blowing lance is internally provided with a blowing tube and externally provided with a bottom blowing brick cup, the bottom blowing brick cup is externally provided with a bottom magnesia carbon brick and the upper part of the bottom blowing brick cup is provided with a bottom slag layer.
3. The lance alarm device of claim 1, wherein the distance between the primary alarm tube and the lance head of the lance is 200mm, and the distance between the primary alarm tube and the secondary alarm tube is 250 mm.
4. The lance alarm device of claim 1, wherein the first level alarm pipe and the second level alarm pipe are both stainless steel pipes with a diameter of 4mm, a wall thickness of 1mm and a central hole of 2 mm.
5. The warning device of the converter bottom-blowing lance of claim 2, wherein the furnace bottom slag layer comprises lime, limestone, light burned dolomite, raw dolomite, pulverized coal, iron oxide powder and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120848676.1U CN215250984U (en) | 2021-04-23 | 2021-04-23 | Converter bottom blowing spray gun alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120848676.1U CN215250984U (en) | 2021-04-23 | 2021-04-23 | Converter bottom blowing spray gun alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215250984U true CN215250984U (en) | 2021-12-21 |
Family
ID=79510620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120848676.1U Active CN215250984U (en) | 2021-04-23 | 2021-04-23 | Converter bottom blowing spray gun alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215250984U (en) |
-
2021
- 2021-04-23 CN CN202120848676.1U patent/CN215250984U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107419051B (en) | Promote the smelting process of converter scrap melting using gasification dephosphorized slag | |
| CN108060288B (en) | Pre-deoxidation method and device for blowing carbon powder into converter steel tapping hole | |
| CN105803155A (en) | Dephosphorization method for electric-arc furnace steelmaking | |
| CN100595284C (en) | Maintaining method for blast furnace | |
| CN215250984U (en) | Converter bottom blowing spray gun alarm device | |
| CN100507016C (en) | Air curtain skimming device for steel-making converter | |
| CN102344984B (en) | Semisteel smelting and slag remaining method under dry dedusting conduction | |
| CN102191352A (en) | Coherent jet lance | |
| CN102312044B (en) | Method for smelting with electric furnace | |
| CN105441624B (en) | Gun head structure and method for regulating converter top blown oxygen flow by double-path oxygen flow | |
| CN104131134B (en) | The technique of making foamed slag in a kind of electric arc furnace molten bath | |
| CN102146493A (en) | Method for smelting clean steel in electromagnetic induction furnace by blowing CO2 | |
| CN208829713U (en) | A kind of single channel Oxygen Lance With Secondary Combustion improving converter scrap ratio | |
| CN102628094B (en) | Buried oxygen blowing and decarburization process for electric-arc furnace steelmaking and control method | |
| CN115927784A (en) | Based on CO 2 Dynamic mixed blowing converter steelmaking end point control method | |
| CN114196798B (en) | Single-channel secondary combustion oxygen lance and use method thereof | |
| CN203754751U (en) | Oxygen bottom blown converter for steelmaking | |
| CN108977620A (en) | A kind of single channel Oxygen Lance With Secondary Combustion and its application method improving converter scrap ratio | |
| CN105039639A (en) | Converter combined-blowing air brick unblocking recovering system and method | |
| CN201463594U (en) | Combined spray gun used for iron making by smelting reduction | |
| CN210163472U (en) | Molten iron dephosphorization device | |
| CN207581848U (en) | It is suitble to the Oxygen Lance Nozzle for Converter of semisteel smelting | |
| CN210163475U (en) | Bottom lance structure of converter | |
| CN202576472U (en) | Air hole type anti-sticking oxygen lance | |
| CN103026161B (en) | Remove the method and system that in smelting furnace, furnace accretion is piled up |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |