CN213172421U - Oxygen lance for blast furnace opening - Google Patents
Oxygen lance for blast furnace opening Download PDFInfo
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- CN213172421U CN213172421U CN202021110110.0U CN202021110110U CN213172421U CN 213172421 U CN213172421 U CN 213172421U CN 202021110110 U CN202021110110 U CN 202021110110U CN 213172421 U CN213172421 U CN 213172421U
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- oxygen
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Abstract
An oxygen lance for opening a blast furnace comprises a lance body and an oxygen tube; one end of the gun body is provided with a gun head, and the other end of the gun body is provided with a tail connecting sleeve; an oxygen tube through hole and a nitrogen interface are formed in the tube wall of the gun body, one end of the oxygen tube penetrates through the oxygen tube through hole and the gun body and then is arranged in the gun head, and a thermocouple monitoring device is arranged on the outer side of the oxygen tube and in the gun body. The utility model discloses when using, push the rifle head in the furnace hearth along the indisputable mouthful passageway, the outside oxygen hose of body of a gun inserts oxygen, and nitrogen gas interface on the body of a gun inserts cooling nitrogen gas, and the oxygen blowing behavior is judged to the thermocouple temperature data of reunion, can safe effectual oxygen blowing melt furnace hearth slag iron, reaches the rapid heating furnace hearth purpose.
Description
Technical Field
The utility model relates to an oxygen lance for blast furnace opening.
Background
In the blast furnace iron-making production, after the blast furnace is shut down for a long time for maintenance, the temperature of the slag iron in the hearth is greatly reduced, and how to heat the hearth as soon as possible in the early stage of air supply and production recovery is a crucial link. In order to heat the slag iron in the hearth as early as possible, melt and discharge the slag iron, the melting of the slag iron in the hearth is promoted by adopting an oxygen blowing mode from an iron notch, the hearth is heated quickly, and the process of recovering the furnace condition is accelerated.
The existing old oxygen lance has only a single oxygen channel, so that the operation condition of oxygen blowing cannot be judged, the lance head at the front end is gradually oxidized after oxygen introduction, and the problems of easily damaging a mud bag, a combined brick and even a cooling wall in an iron notch area and forming great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an oxygen lance for blast furnace blow-in, which solves the problem that the prior old oxygen lance easily destroys the mud bag, the combined brick or even the cooling wall in the iron notch area, and forms great potential safety hazard, and has the characteristics of safe use and high efficiency.
The technical proposal adopted for realizing the purpose is that the oxygen lance for the blast furnace to open the furnace comprises a lance body and an oxygen pipe; one end of the gun body is provided with a gun head, and the other end of the gun body is provided with a tail connecting sleeve; an oxygen tube through hole and a nitrogen interface are formed in the tube wall of the gun body, one end of the oxygen tube penetrates through the oxygen tube through hole and the gun body and then is arranged in the gun head, and a thermocouple monitoring device is arranged on the outer side of the oxygen tube and in the gun body.
Advantageous effects
Compared with the prior art, the utility model has the following advantages.
The utility model has the advantages that, this oxygen rifle sets up the oxygen hose in the body of a gun, and the oxygen hose outside has increased nitrogen gas pipe cooling and thermocouple monitoring, has solved current old-fashioned oxygen rifle and has had the loam bag, the cooling wall even of combination brick that destroy the iron notch region easily, forms the problem of great potential safety hazard, can combine the temperature data of thermocouple monitoring to judge the behavior of oxygen blowing, and safe effectual oxygen blowing melts the slag iron of furnace hearth, reaches rapid heating furnace hearth purpose.
Drawings
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention;
shown in the figure: 1. the device comprises a gun head, 2, a gun body, 3, a tail connecting sleeve, 4, an oxygen pipe through hole, 5, an oxygen pipe, 6, a nitrogen interface, 7 and a thermocouple monitoring device.
Detailed Description
The present invention will be further described with reference to the following embodiments and the accompanying drawings.
An oxygen lance for opening a blast furnace comprises a lance body 2 and an oxygen pipe 5; as shown in fig. 1, a gun head 1 is arranged at one end of a gun body 2, and a tail connecting sleeve 3 is arranged at the other end of the gun body 2; an oxygen tube through hole 4 and a nitrogen interface 6 are formed in the tube wall of the gun body 2, one end of the oxygen tube 5 penetrates through the oxygen tube through hole 4 and the gun body 2 and then is arranged in the gun head 1, and a thermocouple monitoring device 7 is arranged on the outer side of the oxygen tube 5 and in the gun body 2.
The wall of the oxygen tube 5 and the oxygen tube through hole 4 are hermetically arranged.
The gun body 2 is made of seamless steel pipes.
A groove is formed in one end of the gun head 1, and a groove is formed in one end of the oxygen pipe 5.
The utility model is used for clear up the regional iron slag of iron notch before opening the furnace, when specifically using, drill through the iron notch with the stokehold tapping machine, again with 1 edge tapping machines for the iron notch passageway of rifle head of oxygen rifle in pushing into the furnace hearth, let in oxygen with 2 outside oxygen pipes 5 of body of a gun, nitrogen gas interface 6 inserts cooling nitrogen gas, the temperature data who reunites thermocouple monitoring devices 7 monitoring judges the oxygen blowing behavior, can safe effectual oxygen blowing melting furnace hearth iron slag, reach the rapid heating furnace hearth purpose.
Claims (3)
1. An oxygen lance for opening a blast furnace comprises a lance body (2) and an oxygen pipe (5); the multifunctional gun is characterized in that one end of the gun body (2) is provided with a gun head (1), and the other end of the gun body (2) is provided with a tail connecting sleeve (3); an oxygen tube through hole (4) and a nitrogen interface (6) are formed in the tube wall of the gun body (2), one end of the oxygen tube (5) penetrates through the oxygen tube through hole (4) and the gun body (2) and then is arranged in the gun head (1), and a thermocouple monitoring device (7) is arranged in the gun body (2) and located on the outer side of the oxygen tube (5).
2. The oxygen lance for the blast furnace opening according to claim 1, wherein the wall of the oxygen tube (5) is hermetically mounted with the oxygen tube through hole (4).
3. The oxygen lance for the blast furnace opening according to claim 1, wherein the lance body (2) is made of seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021110110.0U CN213172421U (en) | 2020-06-16 | 2020-06-16 | Oxygen lance for blast furnace opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021110110.0U CN213172421U (en) | 2020-06-16 | 2020-06-16 | Oxygen lance for blast furnace opening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213172421U true CN213172421U (en) | 2021-05-11 |
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ID=75788162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021110110.0U Active CN213172421U (en) | 2020-06-16 | 2020-06-16 | Oxygen lance for blast furnace opening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213172421U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113528735A (en) * | 2021-08-30 | 2021-10-22 | 新疆八一钢铁股份有限公司 | Iron mouth oxygen lance for Ou smelting furnace |
| CN113584248A (en) * | 2021-08-25 | 2021-11-02 | 新疆八一钢铁股份有限公司 | Iron notch oxygen lance system for Europe smelting furnace |
-
2020
- 2020-06-16 CN CN202021110110.0U patent/CN213172421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584248A (en) * | 2021-08-25 | 2021-11-02 | 新疆八一钢铁股份有限公司 | Iron notch oxygen lance system for Europe smelting furnace |
| CN113528735A (en) * | 2021-08-30 | 2021-10-22 | 新疆八一钢铁股份有限公司 | Iron mouth oxygen lance for Ou smelting furnace |
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