CN219824255U - Oxygen gun device for blast furnace - Google Patents
Oxygen gun device for blast furnace Download PDFInfo
- Publication number
- CN219824255U CN219824255U CN202320771216.2U CN202320771216U CN219824255U CN 219824255 U CN219824255 U CN 219824255U CN 202320771216 U CN202320771216 U CN 202320771216U CN 219824255 U CN219824255 U CN 219824255U
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- CN
- China
- Prior art keywords
- oxygen
- main pipe
- air
- pipe
- branch pipe
- 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.)
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000001301 oxygen Substances 0.000 title claims abstract description 111
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 111
- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 244000144985 peep Species 0.000 claims abstract description 7
- 208000008918 voyeurism Diseases 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 229910001882 dioxygen Inorganic materials 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000571 coke Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- Blast Furnaces (AREA)
Abstract
The utility model relates to a blast furnace oxygen lance device, and belongs to the technical field of blast furnace smelting. The structure comprises an air main pipe (2) and an oxygen main pipe (1), wherein one end of the oxygen main pipe (1) is penetrated in the air main pipe (2) in a penetrating way, the oxygen main pipe (1) and the air main pipe (2) are arranged at intervals, the penetrating end of the air main pipe (2) is sealed, and a ball valve (7) and a peep sight (8) are sequentially arranged at the other end of the oxygen main pipe (1); the oxygen-enriched air furnace further comprises an air branch pipe (4) and an oxygen branch pipe (3), wherein the air branch pipe (4) and the oxygen branch pipe (3) are obliquely arranged and are respectively communicated with the side walls of the air main pipe (2) and the oxygen main pipe (1). The structure is obliquely communicated with the air main pipe (2) and the oxygen main pipe (1) through the air branch pipe (4) and the oxygen branch pipe (3), so that the site installation is convenient. Meanwhile, the peeping mirror (8) can observe the condition of the oxygen main pipe (2), so that the flow of oxygen and air can be conveniently regulated.
Description
Technical Field
The utility model relates to a blast furnace oxygen lance device, and belongs to the technical field of blast furnaces.
Background
In recent years, the national emphasis on environmental protection is continuously increased, and according to the air quality, the steel enterprises are required to limit or stop production, and short-term production stopping of the blast furnace, namely furnace stewing, and furnace opening after the furnace stewing is carried out by the blast furnace, is frequently caused. And simultaneously, the operation of recovering the furnace is also carried out when the blast furnace is newly built or overhauled and put into iron-making production. The standard of whether the furnace is fully and successfully opened is also improved, and besides ensuring that the furnace condition is smooth and the tapping can be safely and smoothly carried out and the production can be quickly achieved, the high efficiency and low consumption have become important evaluation indexes which relate to whether the blast furnace can smoothly achieve the rated economic and technical indexes and the service life of the first-generation furnace in a specified time.
The existing working temperature is close to 1000 ℃, the raw materials are vanadium titano-magnetite and coke, and the vanadium titano-magnetite has high viscosity, so that the coke needs to be fully combusted during the furnace opening, the heat of the furnace hearth is rapidly and effectively supplied, and a high-temperature area is formed at the bottom of the furnace hearth to finish the furnace opening. In the partial oxygen lance device in the prior art, no observation hole exists, the pressure and the flow cannot be adjusted in time, the physical heat of primary slag iron formed by a hearth during the furnace opening is insufficient, the fluidity of the slag iron is poor, and even a taphole cannot be opened normally.
Disclosure of Invention
The technical problem to be solved by the utility model is that the oxygen lance in the prior art cannot observe combustion conditions in time, so that insufficient coke combustion is caused, and the slag iron with uneven heat has poor fluidity.
The technical scheme adopted for solving the technical problems is as follows: the blast furnace oxygen lance device comprises an air main pipe and an oxygen main pipe, wherein one end of the oxygen main pipe is penetrated in the air main pipe, so that the oxygen main pipe and the air main pipe are arranged at intervals, the penetrating end of the air main pipe is sealed, and the other end of the oxygen main pipe is sequentially provided with a ball valve and a peep sight; still include air branch pipe and oxygen branch pipe, air branch pipe and oxygen branch pipe slope set up and are responsible for the lateral wall intercommunication setting with air respectively with air, and air branch pipe's link is located the end of sealing that the air was responsible for, and oxygen branch pipe's link is located the oxygen and is responsible for and stretch out on the lateral wall that the air was responsible for.
The air branch pipes in the structure tangentially enter along the periphery of the air main pipe and are communicated with the inside of the air main pipe.
Wherein, in the above-mentioned structure the air branch pipe and the oxygen branch pipe correspond to the contained angle that the end axis penetrated with the air main pipe and the oxygen main pipe is 125 to 135.
Wherein, in above-mentioned structure oxygen is responsible for and is provided with the sight glass tip and is provided with temperature probe, and is located between ball valve and the sight glass.
Wherein, in above-mentioned structure air branch pipe and oxygen branch pipe keep away from air main pipe and oxygen main pipe end and are connected with the hose respectively, and are provided with the manometer on the hose.
Wherein, in the above-mentioned structure air branch pipe and oxygen branch pipe parallel arrangement, and the interval is 200 to 230mm.
Further, in the above structure, a fixing bracket is connected between the air branch pipe and the oxygen branch pipe.
Wherein, in the structure, the air main pipe is a stainless steel pipe with phi 57x3.5mm and the length is 3088mm; the oxygen main pipe 1 is a stainless steel pipe with phi 34x3mm, and the length of the oxygen main pipe extending out of the air main pipe is 900mm; the air and oxygen manifolds were sized phi 22x4mm and were 4650mm long.
The beneficial effects of the utility model are as follows: this structure is responsible for and is responsible for the intercommunication with the air through air branch pipe and oxygen branch pipe slope and air, and the convenient on-the-spot installation makes oxygen and air homogeneous mixing guarantee that the oxygen of burning is sufficient simultaneously for coke burns completely and produces sufficient heat. Meanwhile, the peeping mirror can observe the condition of the oxygen main pipe, so that the flow of oxygen and air can be conveniently regulated, and the heat is ensured to be continuous.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic elevational view of the scope of the present utility model.
Marked in the figure as: the oxygen main pipe 1, the air main pipe 2, the oxygen branch pipe 3, the air branch pipe 4, the fixed bracket 5, the hose 6, the ball valve 7, the peep sight glass 8, the temperature measuring probe 9 and the pressure gauge 10.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the blast furnace oxygen lance device comprises an air main pipe 2 and an oxygen main pipe 1, wherein one end of the oxygen main pipe 1 is penetrated in the air main pipe 2, so that the oxygen main pipe 1 and the air main pipe 2 are arranged at intervals, the penetrating end of the air main pipe 2 is sealed, and a ball valve 7 and a peep sight 8 are sequentially arranged at the other end of the oxygen main pipe 1; still include air branch pipe 4 and oxygen branch pipe 3, air branch pipe 4 and oxygen branch pipe 3 slope set up and are responsible for 1 lateral wall intercommunication setting with air respectively with air and are responsible for 2, and the link of air branch pipe 4 is located the end of sealing of air and is responsible for 2, and the link of oxygen branch pipe 3 is located the oxygen and is responsible for 1 and stretch out on the lateral wall of air and be responsible for 2. It can be understood by those skilled in the art that the structure preferably mainly comprises an air main pipe 2 and an oxygen main pipe 1, and one end of the oxygen main pipe 1 is penetrated in the air main pipe 2, so that the oxygen main pipe 1 and the air main pipe 2 are arranged at intervals, and the air main pipe 2 and the oxygen main pipe 1 are longer in length, so that the positioning ring can be practically used for ensuring the interval arrangement of the air main pipe 2 and the oxygen main pipe 1, and the inner wall channel of the air main pipe 2 is ensured to be communicated with the air in the blast furnace. The penetrating end of the air main pipe 2 is further sealed, namely, the oxygen main pipe 1 penetrates into the air main pipe 2 to be sealed. The ball valve 7 and the peep mirror 8 are sequentially arranged at the other end of the oxygen main pipe 1, namely the end far away from the air main pipe 2, so that the condition of the oxygen main pipe 1 can be conveniently observed, and meanwhile, the peep mirror 8 can be detached for tapping. The structure further comprises an air branch pipe 4 and an oxygen branch pipe 3, wherein the air branch pipe 4 and the oxygen branch pipe 3 are obliquely arranged in practice and are respectively communicated with the side walls of the air main pipe 2 and the oxygen main pipe 1, so that the air intake of oxygen and air is ensured, the connecting end of the air branch pipe 4 is preferably positioned at the sealing end of the air main pipe 2, and the connecting end of the oxygen branch pipe 3 is positioned on the side wall of the oxygen main pipe 1 extending out of the air main pipe 2.
Preferably, the air branch pipe 4 in the above structure enters tangentially along the outer circumference of the air main pipe 2 and communicates with the inside of the air main pipe 2. As can be appreciated by those skilled in the art, the present structure further defines the connection position of the air branch pipe 4 and the air main pipe 2, so that the air branch pipe 4 enters along the tangential direction of the air main pipe 2 and is connected with the air main pipe, and the air in the air branch pipe 4 enters in a spiral shape, so that the air is prevented from directly striking the oxygen main pipe 1, and the oxygen main pipe 1 is prevented from being worn and damaged at high temperature, and meanwhile, the impact can be prevented from generating vibration, and the stability of the device is also prevented from being affected.
Preferably, the included angle between the air branch pipe 4 and the oxygen branch pipe 3 in the structure and the axis of the penetrating end of the air main pipe 2 and the oxygen main pipe 1 is 125-135 degrees. It will be appreciated by those skilled in the art that in order to facilitate the on-site installation of the structure, the structure is preferably combined with on-site installation conditions, and the angles between the air branch pipe 4 and the oxygen branch pipe 3 and the axes of the penetrating ends of the air main pipe 2 and the oxygen main pipe 1 are preferably 125 to 135 degrees, where the penetrating ends are the ends of the whole structure penetrating into the blast furnace body. The actual preferred angle is 132.
Preferably, in the above structure, the end portion of the oxygen main pipe 1 provided with the scope 8 is provided with a temperature measuring probe 9, and is located between the ball valve 7 and the scope 8. It will be appreciated by those skilled in the art that for convenience in detecting the operating temperature of the structure, it is preferable that the oxygen main tube 1 is provided with a temperature probe 9 at the end of the scope 8 and between the ball valve 7 and the scope 8.
Preferably, in the above structure, the ends of the air branch pipe 4 and the oxygen branch pipe 3 far from the air main pipe 2 and the oxygen main pipe 1 are respectively connected with a hose 6, and a pressure gauge 10 is arranged on the hose 6. It will be appreciated by those skilled in the art that in order to ensure the stability and connection convenience of the supplied air, the air branch pipe 4 and the oxygen branch pipe 3 are preferably connected with hoses 6 at the ends far away from the air main pipe 2 and the oxygen main pipe 1, respectively, and a pressure gauge 10 is arranged on the hoses 6 for controlling the gas pressure.
Preferably, the air branch pipe 4 and the oxygen branch pipe 3 are arranged in parallel in the above structure, and the interval is 200 to 230mm. It will be appreciated by those skilled in the art that for ease of installation while reducing the footprint of the overall structure, the present structure preferably has the air manifold 4 and the oxygen manifold 3 arranged in parallel with a spacing of 200 to 230mm, and in practice preferably the air manifold 4 and the oxygen manifold 3 have a spacing of 220mm.
Preferably, a fixing bracket 5 is connected between the air branch pipe 4 and the oxygen branch pipe 3 in the above structure. It will be appreciated by those skilled in the art that for structural stability, a fixing bracket 5 is preferably connected between the air manifold 4 and the oxygen manifold 3.
Preferably, in the above structure, the air main pipe 2 is a stainless steel pipe with a diameter of phi 57x3.5mm and a length of 3088mm; the oxygen main pipe 1 is a stainless steel pipe with phi 34x3mm, and the length of the oxygen main pipe 1 extending out of the air main pipe 2 is 900mm; the air branch pipe 4 and the oxygen branch pipe 3 have a dimension of phi 22x4mm and a length of 4650mm. As will be appreciated by those skilled in the art, the present structure is preferably selected from the materials, specifications and lengths of the air main 2, the oxygen main 1, the air branch 4 and the oxygen branch 3 according to practical needs. Specifically, the air main pipe 2 is a stainless steel pipe with phi 57x3.5mm and the length is 3088mm; the oxygen main pipe 1 is a stainless steel pipe with phi 34x3mm, and the length of the oxygen main pipe 1 extending out of the air main pipe 2 is 900mm; the air branch pipe 4 and the oxygen branch pipe 3 have a dimension of phi 22x4mm and a length of 4650mm.
Claims (7)
1. Blast furnace oxygen rifle device, its characterized in that: the oxygen gas injection device comprises an air main pipe (2) and an oxygen main pipe (1), wherein one end of the oxygen main pipe (1) is penetrated in the air main pipe (2) so that the oxygen main pipe (1) and the air main pipe (2) are arranged at intervals, the penetrating end of the air main pipe (2) is sealed, and a ball valve (7) and a peep hole (8) are sequentially arranged at the other end of the oxygen main pipe (1); the air branch pipe (4) and the oxygen branch pipe (3) are obliquely arranged and are respectively communicated with the side walls of the air main pipe (2) and the oxygen main pipe (1), the connecting end of the air branch pipe (4) is positioned at the sealing end of the air main pipe (2), and the connecting end of the oxygen branch pipe (3) is positioned on the side wall of the oxygen main pipe (1) extending out of the air main pipe (2); the air branch pipe (4) tangentially enters along the periphery of the air main pipe (2) and is communicated with the inside of the air main pipe (2).
2. The blast furnace lance device of claim 1 wherein: the included angle between the air branch pipe (4) and the oxygen branch pipe (3) and the axis of the penetrating end of the air main pipe (2) and the axis of the penetrating end of the oxygen main pipe (1) are 125-135 degrees.
3. The blast furnace lance device of claim 1 wherein: the oxygen main pipe (1) is provided with a temperature measuring probe (9) at the end part of the peeping mirror (8), and is positioned between the ball valve (7) and the peeping mirror (8).
4. The blast furnace lance device of claim 1 wherein: the air branch pipe (4) and the oxygen branch pipe (3) are respectively connected with a hose (6) at the ends far away from the air main pipe (2) and the oxygen main pipe (1), and a pressure gauge (10) is arranged on the hose (6).
5. The blast furnace lance device of claim 1 wherein: the air branch pipe (4) and the oxygen branch pipe (3) are arranged in parallel, and the distance is 200-230 mm.
6. The blast furnace lance apparatus of claim 5 wherein: a fixed bracket (5) is connected between the air branch pipe (4) and the oxygen branch pipe (3).
7. The blast furnace lance device of claim 1 wherein: the air main pipe (2) is a stainless steel pipe with phi 57x3.5mm and the length is 3088mm; the oxygen main pipe (1) is a stainless steel pipe with phi 34x3mm, and the length of the oxygen main pipe (1) extending out of the air main pipe (2) is 900mm; the air branch pipe (4) and the oxygen branch pipe (3) are of a size phi 22x4mm and a length 4650mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320771216.2U CN219824255U (en) | 2023-04-10 | 2023-04-10 | Oxygen gun device for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320771216.2U CN219824255U (en) | 2023-04-10 | 2023-04-10 | Oxygen gun device for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219824255U true CN219824255U (en) | 2023-10-13 |
Family
ID=88275857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320771216.2U Active CN219824255U (en) | 2023-04-10 | 2023-04-10 | Oxygen gun device for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219824255U (en) |
-
2023
- 2023-04-10 CN CN202320771216.2U patent/CN219824255U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |