CN218895664U - Air nozzle of oxygen-enriched side-blown converter - Google Patents
Air nozzle of oxygen-enriched side-blown converter Download PDFInfo
- Publication number
- CN218895664U CN218895664U CN202223429110.9U CN202223429110U CN218895664U CN 218895664 U CN218895664 U CN 218895664U CN 202223429110 U CN202223429110 U CN 202223429110U CN 218895664 U CN218895664 U CN 218895664U
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- China
- Prior art keywords
- tuyere
- piston rod
- oxygen
- enriched side
- piston
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 29
- 239000001301 oxygen Substances 0.000 title claims abstract description 29
- 239000002893 slag Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 7
- 238000009423 ventilation Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 240000007643 Phytolacca americana Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses an oxygen-enriched side-blown furnace tuyere, which comprises a tuyere body, wherein the tuyere body comprises a layer tuyere water jacket, a tuyere head connected to the layer tuyere water jacket, and a tuyere tee joint arranged at one end of the tuyere head, wherein a slag removing device is arranged at the end part of the tuyere tee joint, and comprises a cylinder body, end covers arranged at two ends of the cylinder body, and piston rods penetrating through the two end covers; the piston rod is sleeved with a piston in the cylinder body, the piston drives the piston rod to axially move, the end cover is connected with the tuyere tee joint, and the piston rod can penetrate through the tuyere body and extend out from one end of the tuyere water jacket. The utility model can intelligently identify the slag hanging condition of the tuyere and remotely and automatically control slag removal, thereby remarkably improving the production efficiency and the safety coefficient and saving the manpower.
Description
Technical Field
The utility model belongs to the technical field of molten pool smelting, and particularly relates to an oxygen-enriched side-blown furnace tuyere.
Background
The tuyere is used as core equipment for air intake of the side-blowing furnace and is arranged in the reducing pipe of the spray furnace shell. In the daily production process, in order to protect the tuyere from being burnt out, the tuyere is provided with a water jacket structure, and the tuyere is cooled by circulating water, and meanwhile, the top end of the tuyere is welded by a high-temperature resistant alloy material. In the production process, the tuyere is easy to hang slag due to the fact that a furnace body of the side-blown furnace forms a furnace knot to cause coke shortage in a tuyere zone, and slag can be caused to hang slag in the tuyere due to the fact that the side-blown furnace is out of pressure or has large pressure fluctuation, slag discharge is not timely and the like. In order to ensure the continuity, stability and high efficiency of production, the tuyere slag hanging needs to be thoroughly cleared in time when the tuyere is cleaned during blowing-down, the slag hanging is usually manually cleared by a straight six-edge steel drill rod at present, and the problems that the slag cannot be thoroughly cleared, the slag cannot be easily slid up and down, the labor is consumed and the like exist. For example, chinese patent No. CN206872909U discloses a tool for cleaning tuyere of lead-zinc closed blast furnace, which is composed of inclined plane drill angle, angle-folded drill body, reinforcing tie bar, damping handle and drill bit, and can raise slag-cleaning efficiency, but still requires manual operation, and is time-consuming and laborious.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the tuyere of the oxygen-enriched side-blown furnace, which can remotely control automatic slag removal and realize the intellectualization and remote operation of the slag removal of the tuyere.
In order to achieve the above purpose, the specific technical scheme of the utility model is as follows:
the tuyere comprises a tuyere body, wherein the tuyere body comprises a layer tuyere water jacket, a tuyere head connected to the layer tuyere water jacket, and a tuyere tee joint arranged at one end of the tuyere head, wherein a slag removing device is arranged at the end part of the tuyere tee joint, and comprises a cylinder body, end covers arranged at two ends of the cylinder body, and piston rods penetrating through the two end covers; the piston rod is sleeved with a piston in the cylinder body, the piston drives the piston rod to axially move, the end cover is connected with the tuyere tee joint, and the piston rod can penetrate through the tuyere body and extend out from one end of the tuyere water jacket.
Therefore, the utility model uses the piston rod to remove slag, and the remote automatic control of slag removal can be realized by driving the piston rod to axially move, so that the production efficiency and the safety coefficient are obviously improved, and the labor is saved.
Further, the cylinder body sets up on the base, be equipped with a pair of spacing subassembly on the base, two the distance between the spacing subassembly can be adjusted, the tip of piston rod is equipped with a gag lever post, the gag lever post is movable between spacing subassembly, through gag lever post and spacing subassembly cooperation steerable piston rod's movable range.
Further, a water cooling channel is arranged in the piston rod, and a water outlet and a water inlet are respectively arranged at one end of the piston rod.
Still further, the inner chamber of gag lever post with the water-cooling passageway intercommunication, the delivery port sets up the gag lever post is kept away from the one end of piston rod.
Still further, the shape of the end cover is matched with the connecting end of the tuyere of the oxygen-enriched side-blown furnace.
Still further, still be equipped with the joint between end cover and the wind gap tee bend.
Still further, be equipped with the sensor on the three-way air intake of wind gap, the sensor is connected with the treater electricity, whether has the string sediment jam condition through treater intelligent identification air outlet to upper computer remote automatic control drill rod comes timely or regularly to clear away wind gap string sediment
In addition, the sensors are a wind pressure sensor and a flow sensor, the wind pressure, the flow and other data of the air inlet can be observed in the control room, whether the air nozzle is blocked or not is judged through the change of the wind pressure and the flow, when the blocking is found, the piston rod can be controlled to poke slag in the control room, the ventilation smoothness of the air nozzle is ensured, and the air inlet efficiency and the combustion efficiency in the furnace are ensured.
The slag removing device can be in three states in operation, namely a normal ventilation state, a slag hole closing state and a slag hole poking state. When the air is in a normal ventilation state, the front end of the piston rod is required to be retracted to the joint of the air inlet and the horizontal cavity so as to enable oxygen to smoothly enter the oxygen-enriched side-blowing furnace; when the slag hole is in a closed state, the front end of the piston rod is flush with the front end of the tuyere, so that the blocking effect is achieved, and when the slag hole is in a poking state, the front end of the piston rod is poked into the oxygen-enriched side-blowing furnace.
Therefore, the distance from the front end of the air nozzle to the joint of the air inlet and the horizontal cavity is required to be larger than or equal to the piston stroke in the air cylinder, and the maximum adjustable distance between the limit switches is required to be larger than or equal to the distance in the same way.
Therefore, the diameter of the front end of the piston rod is equal to the aperture of the front end of the air nozzle.
The diameter of the front end of the piston rod is slightly smaller than the aperture of the front end of the tuyere, so that the front end of the piston rod can be poked into an oxygen-enriched side-blowing furnace while slag blocking is ensured.
And the maximum stroke of the piston in the cylinder is more than or equal to the distance from the maximum depth of the front end of the tuyere, which can be poked into the furnace, to the joint of the air inlet and the horizontal cavity.
The utility model has the following advantages:
1) The utility model can intelligently identify the slag hanging condition of the tuyere and remotely and automatically control slag removal, thereby remarkably improving the production efficiency and the safety coefficient and saving the manpower.
2) The utility model has simple structure, can be well connected with the tuyere and is convenient for maintenance.
3) The piston rod of the utility model adopts heat-resistant stainless steel and is internally provided with the water jacket for cooling, so that the device can be protected, and the service life of the steel drill rod can be prolonged.
4) The limit switch capable of flexibly adjusting the distance is arranged, the movable stroke of the piston rod can be adjusted according to different requirements, and the adaptability is good.
Drawings
FIG. 1 is a schematic diagram of a tuyere slag removing device of an oxygen-enriched side-blown furnace;
FIG. 2 is a schematic view of the slag notch of the present utility model in a closed state;
fig. 3 is a schematic view of the normal ventilation state structure of the present utility model.
The figure indicates: 1. a layer tuyere water jacket; 2. a tuyere head; 3. an air port tee joint; 4. a joint; 5. an end cap; 6. a piston rod; 7. a cylinder; 8. a base; 9. a limit component; 10. an air outlet; 11. an air inlet; 12. a piston; 13. a water outlet; 14. a water inlet; 15. a limit rod; 16. a tuyere body; 17. and a slag removing device.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings for a better understanding of the objects, structures and functions of the present utility model.
As shown in fig. 1, an oxygen-enriched side-blown furnace tuyere of this embodiment includes a tuyere body 16, the tuyere body 16 includes a layer tuyere water jacket 1, a tuyere head 2 connected to the layer tuyere water jacket 1, and a tuyere tee 3 disposed at one end of the tuyere head 2, a sensor is disposed on an air inlet 11 of the tuyere tee 3, and the sensor is electrically connected with a processor, specifically, the sensor is a wind pressure sensor and a flow sensor.
As shown in fig. 1 and 3, a slag removing device 17 is mounted at the end of the tuyere tee 3, and the slag removing device 17 includes a cylinder 7, end caps 5 disposed at both ends of the cylinder 7, and a piston rod 6 penetrating both the end caps 5. The piston rod 6 is made of heat-resistant stainless steel. The shape of the end cover 5 is matched with the connecting end of the tuyere of the oxygen-enriched side-blown furnace, the end cover 5 and the tuyere tee joint 3 are fixed through a joint 4 by adopting spot welding, and screw thread sealant is smeared at the connecting position. The piston rod 6 is sleeved with a piston 12 in the cylinder 7, the piston 12 drives the piston rod 6 to axially move through the power provided by compressed air, and the piston rod 6 can penetrate through the tuyere body 16 and extend out of the air outlet 10 of the tuyere water jacket 1. Specifically, the distance from the air outlet 10 to the joint of the air inlet 11 and the air outlet tee joint horizontal cavity is L1, the maximum stroke of the piston 12 is L2,
as shown in fig. 1 and 3, the cylinder 7 is disposed on the base 8, a pair of limiting assemblies 9 are disposed on the base 8, the distance between the two limiting assemblies 9 can be adjusted, a limiting rod 15 is disposed at the end of the piston rod 6, and the limiting rod 15 moves between the limiting assemblies 9. Specifically, the two limiting assemblies 9 are spaced apart by a distance L3.
As shown in fig. 1, a water cooling channel is further provided inside the piston rod 6, an inner cavity of the limit rod 15 is communicated with the water cooling channel, a water inlet 14 is provided at one end of the piston rod 6, and a water outlet 13 is provided at one end of the limit rod 15 away from the piston rod 6.
When the utility model is in a slag poking state, as shown in fig. 1 and 3, the front end of the piston rod 6 is poked into the oxygen-enriched side-blown furnace, the hanging slag of the air outlet 10 is removed, and the cylinder 7 is set to be 10 mm-30 mm beyond the front end of the air outlet 10. In order to ensure that the piston rod 6 can be poked into the oxygen-enriched side-blown furnace by 10 mm-30 mm, L3 is more than or equal to L2 is more than or equal to L1+30mm. The air pressure, flow rate and other sensors arranged at the air inlet 11 can observe the air pressure, flow rate and other data of the air inlet 11 on a processor of the control room, whether the air outlet 10 has slag blocking conditions or not can be judged through the change of the air pressure and the flow rate, when the slag blocking conditions are found, compressed air can be controlled to enter the cylinder 7 in the control room, the compressed air pushes the piston 12 to move, and the piston 12 drives the piston rod 6 to move.
As shown in fig. 2, when the slag hole is in a closed state, the front end of the piston rod 6 is required to be flush with the air outlet 10, so as to play a role in blocking slag. When oxygen is required to be introduced again, the oxygen enters from the air inlet 11, and when the oxygen is filled in the air inlet three-way cavity, the slag in the oxygen-enriched side-blown furnace is ensured not to flow into the air inlet three-way 3, and a control person remotely controls the piston rod 6 to move backwards to the position shown in fig. 3. In order to ensure slag blocking and simultaneously to poke the front end of the piston rod 6 into the oxygen-enriched side-blown furnace, the diameter of the front end of the piston rod is slightly smaller than the inner diameter of the air outlet 10.
As shown in fig. 3, when in a normal ventilation state, the front end of the piston rod 6 is positioned at the junction of the three-way horizontal cavity of the tuyere, so that the wind path is not blocked. When the piston rod 6 needs to be cooled, cooling water enters the piston rod 6 from the water inlet 14, fills the inside of the piston rod 6 and is discharged from the cooling water outlet 13.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. The utility model provides an oxygen boosting side-blown furnace tuyere, includes tuyere body (16), tuyere body (16) include layer tuyere water jacket (1), connect tuyere head (2) on layer tuyere water jacket (1) to and set up tuyere tee bend (3) in tuyere head (2) one end, characterized in that, slag removal device (17) are installed to the tip of tuyere tee bend (3), slag removal device (17) include cylinder body (7), set up end cover (5) at cylinder body (7) both ends, and run through piston rod (6) of two end cover (5); the piston rod (6) is sleeved with a piston (12) in the cylinder body (7), the piston (12) drives the piston rod (6) to axially move, the end cover (5) is connected with the tuyere tee joint (3), and the piston rod (6) can penetrate through the tuyere body (16) and extend out from one end of the tuyere water jacket (1).
2. The oxygen-enriched side-blown furnace tuyere according to claim 1, characterized in that the cylinder body (7) is arranged on the base (8), a pair of limiting assemblies (9) are arranged on the base (8), the distance between the two limiting assemblies (9) can be adjusted, a limiting rod (15) is arranged at the end part of the piston rod (6), and the limiting rod (15) moves between the two limiting assemblies (9).
3. The oxygen-enriched side-blown furnace tuyere according to claim 2, characterized in that the inside of the piston rod (6) is provided with a water cooling channel, and one end of the piston rod (6) is provided with a water outlet (13) and a water inlet (14), respectively.
4. A tuyere of an oxygen-enriched side-blown furnace according to claim 3, characterized in that the inner cavity of the limit rod (15) is communicated with the water cooling channel, and the water outlet (13) is arranged at one end of the limit rod (15) far away from the piston rod (6).
5. Oxygen-enriched side-blown furnace tuyere according to claim 1, characterized in that the shape of the end cap (5) is matched to the connecting end of the oxygen-enriched side-blown furnace tuyere.
6. The oxygen-enriched side-blown furnace tuyere according to claim 1, characterized in that a joint (4) is also arranged between the end cap (5) and the tuyere tee (3).
7. The oxygen-enriched side-blown furnace tuyere according to claim 1, characterized in that a sensor is arranged on the air inlet (11) of the tuyere tee (3), and the sensor is electrically connected with a processor.
8. The oxygen-enriched side-blown furnace tuyere of claim 7, wherein the sensor is a wind pressure sensor and a flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223429110.9U CN218895664U (en) | 2022-12-21 | 2022-12-21 | Air nozzle of oxygen-enriched side-blown converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223429110.9U CN218895664U (en) | 2022-12-21 | 2022-12-21 | Air nozzle of oxygen-enriched side-blown converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218895664U true CN218895664U (en) | 2023-04-21 |
Family
ID=85999032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223429110.9U Active CN218895664U (en) | 2022-12-21 | 2022-12-21 | Air nozzle of oxygen-enriched side-blown converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218895664U (en) |
-
2022
- 2022-12-21 CN CN202223429110.9U patent/CN218895664U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Liaoning Teli Environmental Protection Technology Co.,Ltd. Assignor: HUNAN RUIYI ZIHUAN TECHNOLOGY CO.,LTD. Contract record no.: X2023980045182 Denomination of utility model: A type of oxygen rich side blowing furnace nozzle Granted publication date: 20230421 License type: Exclusive License Record date: 20231031 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A type of oxygen enriched side blowing furnace nozzle Granted publication date: 20230421 Pledgee: Hunan Caixin Commercial Factoring Co.,Ltd. Pledgor: HUNAN RUIYI ZIHUAN TECHNOLOGY CO.,LTD. Registration number: Y2024980016281 |