CN217536052U - Blast furnace iron notch oxygen lance - Google Patents
Blast furnace iron notch oxygen lance Download PDFInfo
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- CN217536052U CN217536052U CN202221224268.XU CN202221224268U CN217536052U CN 217536052 U CN217536052 U CN 217536052U CN 202221224268 U CN202221224268 U CN 202221224268U CN 217536052 U CN217536052 U CN 217536052U
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- oxygen
- thermocouple
- guide pipe
- pipe
- lance
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Abstract
The utility model relates to the technical field of fine steel preparation, in particular to a blast furnace iron notch oxygen lance, which comprises an oxygen guide pipe, an air guide pipe, a first thermocouple, a second thermocouple, an oxygen lance pipe and an oxygen lance nozzle; the oxygen guide pipe is of a tungsten steel pipeline structure, the oxygen guide pipe is connected with an air guide pipe in a penetrating way, and a first thermocouple and a second thermocouple are respectively arranged in the oxygen guide pipe through a support; one side of the second thermocouple is positioned at the peripheral end of the oxygen guide pipe and is externally sleeved with an oxygen gun pipe, the other end of the oxygen gun pipe is connected with an oxygen gun nozzle, and the oxygen gun nozzle is of a cone structure with an oxygen guide channel; thereby solving the problem that the burning condition of the oxygen lance can not be known in time and the replacement of the oxygen lance can not affect the recovery of the blast furnace.
Description
Technical Field
The utility model relates to a fine steel preparation technical field, in particular to a blast furnace iron notch oxygen lance.
Background
The blast furnace iron notch oxygen lance is used for rapidly heating a furnace hearth to enable slag iron to have fluidity and enable a tuyere to penetrate through an iron notch, so that the slag iron continuously generated in a blast furnace is discharged from the iron notch, and the blast furnace can be assisted to rapidly recover the furnace condition. Generally, the oxygen lance is always in flame combustion in the using process, and because the contact area between the oxygen lance tube and the oxygen lance nozzle which form the oxygen lance and the flame is large, the oxygen lance tube and the oxygen lance nozzle are extremely easy to damage, so that the whole oxygen lance cannot be used. Therefore, the existing oxygen lance needs to be improved, so that the problem that the burning condition of the oxygen lance cannot be known in time and the condition of the blast furnace recovery is influenced by timely replacement is solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a blast furnace iron notch oxygen lance, which solves the problem that the burning loss condition of the oxygen lance cannot be known in time and the furnace recovery condition of the blast furnace is influenced by replacing the oxygen lance in time.
The utility model adopts the following technical proposal:
a blast furnace iron notch oxygen lance comprises an oxygen guide pipe, an air guide pipe, a first thermocouple, a second thermocouple, an oxygen lance pipe and an oxygen lance nozzle; the oxygen guide pipe is of a tungsten steel pipeline structure, the oxygen guide pipe is connected with an air guide pipe in a penetrating way, and a first thermocouple and a second thermocouple are respectively arranged in the oxygen guide pipe through a support; one side of the second thermocouple is positioned at the periphery end of the oxygen guide pipe and is sleeved with an oxygen gun pipe, the other end of the oxygen gun pipe is connected with an oxygen gun nozzle, and the oxygen gun nozzle is of a cone structure with an oxygen guide channel.
Further, the first thermocouple probe is closer to the oxygen lance nozzle than the second thermocouple probe, and the first thermocouple probe is positioned below the second thermocouple probe.
Furthermore, the support is provided with a support rod and a fixing ring, a first thermocouple and a second thermocouple are inserted into the fixing ring respectively, and the other ends of the first thermocouple and the second thermocouple penetrate through the wall of the oxygen guide tube and are respectively connected with a first digital display and a second digital display.
Further, oxygen pipe, oxygen gun pipe and oxygen guide channel all communicate, and the oxygen gun pipe sets up to the open pipeline structure in both ends, and the material of oxygen gun pipe and oxygen gun nozzle sets up to the corundum material.
Further, the outer wall of the oxygen guide pipe is coated with an anti-rust layer, and the inner wall of the oxygen guide pipeline is coated with an anti-corrosion layer.
Further, be provided with velocity of flow table A and manometer A on the oxygen guide pipe, and the first pipe connection of oxygen guide pipe other end has industrial oxygenerator, is provided with velocity of flow control valve A on the first pipeline.
Further, a flow rate meter B and a pressure gauge B are arranged on the air guide pipe, the other end of the air guide pipe is connected with an air compressor through a second pipeline, and a flow rate control valve B is arranged on the second pipeline.
Compared with the prior art, the utility model discloses one of following beneficial effect has at least:
1. the utility model has the advantages that the oxygen guide pipe is made of tungsten steel, so that when the oxygen guide pipe is in a high-temperature environment, the service life of the oxygen guide pipe is prolonged due to the high-temperature resistance of the oxygen guide pipe made of tungsten steel; meanwhile, the first thermocouple and the second thermocouple (the first thermocouple and the second thermocouple are temperature sensors) are respectively arranged in the oxygen guide pipe through the support, when the oxygen lance supplies oxygen to the blast furnace, the arrangement of the first thermocouple and the second thermocouple can facilitate a blast furnace worker to know the burning loss condition of the oxygen lance nozzle and the oxygen lance pipe in use through the temperature of the first thermocouple and the second thermocouple rising suddenly, and accordingly the oxygen lance can be replaced in time according to the burning loss condition of the oxygen lance.
2. The utility model arranges the probe of the first thermocouple closer to the nozzle of the oxygen lance than the probe of the second thermocouple; when the oxygen lance is used, the burning degree of the oxygen lance can be judged through the temperature change of the first thermocouple and the second thermocouple so as to replace the oxygen lance in time; for example, if the temperature of the first thermocouple rises steeply (the steeply rising temperature is higher than the melting temperature of the oxygen lance nozzle and the oxygen lance pipe), the oxygen lance nozzle and part of the oxygen lance pipe are burnt; if the temperature of the second thermocouple rises steeply (the steeply rising temperature is greater than the degree of melting of the lance nozzle and lance tube), it is indicated that most of the lance tube has been burnt.
3. The utility model can lead the gas in the oxygen guide tube into the blast furnace through the oxygen guide tube and the oxygen guide channel by communicating the oxygen guide tube, the oxygen gun tube and the oxygen guide channel, so that the gas can be conveniently led in; meanwhile, the material of the oxygen lance tube and the oxygen lance nozzle is arranged into corundum material, so that when gas is in a high-temperature environment for a long time through the oxygen lance tube and the oxygen lance nozzle, the material of the oxygen lance tube and the oxygen lance nozzle is arranged into corundum material, the service time of the oxygen lance tube and the oxygen lance nozzle can be prolonged, and the service life of the oxygen lance is integrally prolonged.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a schematic diagram of the external structure of the present invention.
Fig. 3 is a schematic view of the oxygen conduit component in the structure of the present invention.
In the figure, 1-an oxygen guide pipe, 2-an air guide pipe, 3-a first thermocouple, 4-a second thermocouple, 5-an oxygen gun pipe, 6-an oxygen gun nozzle, 7-a support, 8-an oxygen guide channel, 9-a support rod, 10-a fixing ring, 11-a first digital display, 12-a second digital display, 13-an antirust layer, 14-an anti-corrosion layer, 15-a flow meter A, 16-a pressure meter A, 17-a first pipeline, 18-a flow control valve A, 19-a flow meter B, 20-a pressure meter B, 21-a second pipeline and 22-a flow control valve B.
Detailed Description
As shown in fig. 1 to 3, in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A blast furnace iron notch oxygen lance comprises an oxygen guide pipe 1, an air guide pipe 2, a first thermocouple 3, a second thermocouple 4, an oxygen lance pipe 5 and an oxygen lance nozzle 6; the oxygen guide pipe 1 is of a tungsten steel pipeline structure, the oxygen guide pipe 1 is connected with the gas guide pipe 2 in a penetrating mode, and a first thermocouple 3 and a second thermocouple 4 are arranged inside the oxygen guide pipe 1 through a support 7 respectively; one side of the second thermocouple 4 is positioned at the peripheral end of the oxygen guide pipe 1 and is sleeved with an oxygen gun pipe 5, the other end of the oxygen gun pipe 5 is connected with an oxygen gun nozzle 6, and the oxygen gun nozzle 6 is of a cone structure with an oxygen guide channel 8.
By arranging the oxygen guide tube 1 to be made of tungsten steel, when the oxygen guide tube 1 is in a high-temperature environment, the service life of the oxygen guide tube 1 can be prolonged due to the high-temperature resistance of the oxygen guide tube 1 made of tungsten steel; meanwhile, the first thermocouple 3 and the second thermocouple 4 (the first thermocouple 3 and the second thermocouple 4 are temperature sensors) are respectively arranged in the oxygen guide pipe 1 through the support 7, when the oxygen lance supplies oxygen to the blast furnace, the arrangement of the first thermocouple 3 and the second thermocouple 4 can facilitate a blast furnace worker to know the burning loss condition of the oxygen lance nozzle 6 and the oxygen lance pipe 5 in use through the temperature of the first thermocouple 3 and the second thermocouple 4 which rises suddenly, and therefore the oxygen lance can be replaced in time according to the burning loss condition of the oxygen lance.
Example 2
Based on example 1, the first thermocouple 3 probe is closer to lance nozzle 6 than the second thermocouple 4 probe, and the first thermocouple 3 probe is located below the second thermocouple 4 probe.
By arranging the probe of the first thermocouple 3 closer to the oxygen lance nozzle 6 than the probe of the second thermocouple 4; when the oxygen lance is used, the burning degree of the oxygen lance can be judged through the temperature change of the first thermocouple 3 and the second thermocouple 4, so that the oxygen lance can be replaced in time; for example, if the temperature of the first thermocouple 3 is suddenly increased (the suddenly increased temperature is higher than the temperature of the oxygen lance nozzle and the oxygen lance pipe when melting), the oxygen lance nozzle 6 and part of the oxygen lance pipe 5 are burnt; if the temperature of the second thermocouple 4 rises steeply (the steeply rising temperature is higher than the temperature of the lance nozzle and the lance tube when they melt), it indicates that most of the oxygen lance tube 5 has been burnt.
Example 3
In example 1, the support 7 has a structure with a support rod 9 and a fixing ring 10, the fixing ring 10 is inserted with a first thermocouple 3 and a second thermocouple 4, and the other ends of the first thermocouple 3 and the second thermocouple 4 penetrate through the wall of the oxygen conduit 1 and are connected with a first digital display 11 and a second digital display 12. Wherein, 9 one ends of bracing piece link to each other with oxygen guide pipe 1 inner wall, and the bracing piece 9 other end is connected in solid fixed ring 10's peripheral end, and solid fixed ring sets up to the ring structure.
The other ends of the first thermocouple 3 and the second thermocouple 4 are respectively and electrically connected with the first digital display 11 and the second digital display 12, so that when the temperature of the first thermocouple 3 and the temperature of the second thermocouple 4 need to be known, the temperatures monitored by the first thermocouple 3 and the second thermocouple 4 can be known in time by observing the readings of the first digital display 11 and the second digital display 12, and the using condition of the oxygen lance nozzle can be known in time by comparing the first thermocouple 3 with the second thermocouple 4.
Example 4
On the basis of embodiment 1, the oxygen guide pipe 1, the oxygen lance pipe 5 and the oxygen guide channel 8 are communicated with each other, the oxygen lance pipe 5 is of a pipeline structure with two open ends, and the oxygen lance pipe 5 and the oxygen lance nozzle 6 are made of corundum materials.
By communicating the oxygen guide pipe 1, the oxygen gun pipe 5 and the oxygen guide channel 8, when the gas in the oxygen guide pipe 1 is introduced into the blast furnace through the oxygen gun pipe 5 and the oxygen guide channel 8, the oxygen guide pipe 1, the oxygen gun pipe 5 and the oxygen guide channel 8 are communicated, so that the introduction of the gas can be facilitated; simultaneously, set up to the corundum material through the material with oxygen barrel 5 and oxygen lance nozzle 6, can be when gaseous through oxygen barrel 5 and oxygen lance nozzle 6 be in high temperature environment for a long time, the material of oxygen barrel 5 and oxygen lance nozzle 6 sets up to the corundum material can prolong the live time of oxygen barrel 5 and oxygen lance nozzle 6 to the whole life who improves the oxygen rifle.
Example 5
On the basis of the embodiment 1, the outer wall of the oxygen guide pipe 1 is coated with an anti-corrosion layer 13, and the inner wall of the oxygen guide pipe 1 is coated with an anti-corrosion layer 14.
The outer wall of the oxygen guide pipe 1 is coated with the anti-rust layer 13, so that when the oxygen guide pipe 1 is affected with damp in cold and hot alternation (cold and hot alternation: working and non-working states), the outer wall of the oxygen guide pipe 1 is coated with the anti-rust layer 13, and the service life of the oxygen guide pipe 1 can be prevented from being influenced by corrosion of the outer wall of the oxygen guide pipe; meanwhile, the inner wall of the oxygen guide pipe 1 is coated with the anti-corrosion layer 14, so that the inner wall of the oxygen guide pipe 1 can be prevented from being corroded.
Example 6
On the basis of the embodiment 1, a flow rate meter A15 and a pressure meter A16 are arranged on the oxygen guide pipe 1, a first pipeline 17 at the other end of the oxygen guide pipe 1 is connected with an industrial oxygen generator, and a flow rate control valve A18 is arranged on the first pipeline 17; wherein, the industrial oxygen generator is a pressure swing adsorption large-scale industrial plateau oxygen generator.
By arranging the pressure gauge A16 and the flow rate control valve A18 on the oxygen guide pipe 1, when the industrial oxygen generator guides gas into the oxygen guide pipe 1 through the first pipeline 17, the pressure difference between the pressure gauge A16 and the pressure gauge B20 can be observed, and the gear of the flow rate control valve A18 can be adjusted timely to mix the oxygen guided into the oxygen guide pipe with the gas; meanwhile, the oxygen flow rate meter A15 is arranged on the oxygen guide pipe 1, so that the oxygen flow rate in the oxygen guide pipe 1 can be known in time by observing the flow rate meter A15.
Example 7
On the basis of the embodiment 1, the air guide pipe 2 is provided with a flow rate meter B19 and a pressure meter B20, the other end of the air guide pipe 2 is connected with an air compressor through a second pipeline 21, and the second pipeline 21 is provided with a flow rate control valve B22; wherein, the air compressor is an industrial grade high-pressure inflator pump permanent magnet frequency conversion screw air compressor.
By arranging the pressure gauge B20 and the flow rate control valve B22 on the gas guide tube 2, when the air compressor guides gas into the oxygen guide tube 1 through the second pipeline 21, the pressure difference between the pressure gauge A16 and the pressure gauge B20 can be observed, and the gear of the flow rate control valve B22 can be adjusted timely to mix the gas guided into the oxygen guide tube with oxygen; meanwhile, the flow velocity meter B19 is arranged on the air duct 2, so that the flow velocity of the gas in the air duct 2 can be known in time by observing the flow velocity meter B19.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (7)
1. A blast furnace iron notch oxygen rifle which characterized in that: comprises an oxygen guide pipe (1), an air guide pipe (2), a first thermocouple (3), a second thermocouple (4), an oxygen lance pipe (5) and an oxygen lance nozzle (6); the oxygen guide pipe (1) is of a tungsten steel pipeline structure, the oxygen guide pipe (1) is connected with the gas guide pipe (2) in a penetrating mode, and a first thermocouple (3) and a second thermocouple (4) are arranged inside the oxygen guide pipe (1) through a support (7) respectively; one side of the second thermocouple (4) is positioned at the peripheral end of the oxygen guide pipe (1) and is externally sleeved with an oxygen gun pipe (5), the other end of the oxygen gun pipe (5) is connected with an oxygen gun nozzle (6), and the oxygen gun nozzle (6) is arranged into a cone structure with an oxygen guide channel (8).
2. The blast furnace taphole oxygen lance according to claim 1, characterized in that: the probe of the first thermocouple (3) is closer to the oxygen lance nozzle (6) than the probe of the second thermocouple (4), and the probe of the first thermocouple (3) is positioned below the probe of the second thermocouple (4).
3. The blast furnace taphole oxygen lance of claim 1, wherein: the support (7) is of a structure with a support rod (9) and a fixing ring (10), a first thermocouple (3) and a second thermocouple (4) are inserted into the fixing ring (10) in a penetrating mode respectively, and the other ends of the first thermocouple (3) and the second thermocouple (4) penetrate through the wall of the oxygen guide tube (1) and are connected with a first digital display (11) and a second digital display (12) respectively.
4. The blast furnace taphole oxygen lance of claim 1, wherein: oxygen guide pipe (1), oxygen lance pipe (5) and oxygen guide way (8) all communicate with each other, and oxygen lance pipe (5) sets up the open pipeline structure in both ends, and the material of oxygen lance pipe (5) and oxygen lance nozzle (6) sets up to the corundum material.
5. The blast furnace taphole oxygen lance according to claim 1, characterized in that: the outer wall of the oxygen guide pipe (1) is coated with an anti-corrosion layer (13), and the inner wall of the oxygen guide pipe (1) is coated with an anti-corrosion layer (14).
6. The blast furnace taphole oxygen lance of claim 1, wherein: the oxygen guide pipe (1) is provided with a flow rate meter A (15) and a pressure meter A (16), a first pipeline (17) at the other end of the oxygen guide pipe (1) is connected with an industrial oxygenerator, and a flow rate control valve A (18) is arranged on the first pipeline (17).
7. The blast furnace taphole oxygen lance of claim 1, wherein: the air guide pipe (2) is provided with a flow rate meter B (19) and a pressure meter B (20), the other end of the air guide pipe (2) is connected with an air compressor through a second pipeline (21), and a flow rate control valve B (22) is arranged on the second pipeline (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221224268.XU CN217536052U (en) | 2022-05-19 | 2022-05-19 | Blast furnace iron notch oxygen lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221224268.XU CN217536052U (en) | 2022-05-19 | 2022-05-19 | Blast furnace iron notch oxygen lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217536052U true CN217536052U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221224268.XU Active CN217536052U (en) | 2022-05-19 | 2022-05-19 | Blast furnace iron notch oxygen lance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217536052U (en) |
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- 2022-05-19 CN CN202221224268.XU patent/CN217536052U/en active Active
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