CN201437541U - Iron port blow-burning oxygen lance - Google Patents
Iron port blow-burning oxygen lance Download PDFInfo
- Publication number
- CN201437541U CN201437541U CN2009200455393U CN200920045539U CN201437541U CN 201437541 U CN201437541 U CN 201437541U CN 2009200455393 U CN2009200455393 U CN 2009200455393U CN 200920045539 U CN200920045539 U CN 200920045539U CN 201437541 U CN201437541 U CN 201437541U
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- rifle body
- oxygen
- leading portion
- thermopair
- rifle
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Abstract
The utility model relates to an iron port blow-burning oxygen lance, which belongs to the technical field of blast furnace blow-burning equipment. The iron port blow-burning oxygen lance comprises a single-tube through type lance body, the lance body is divided into a front lance body which is embedded in an iron port and a rear lance body which is exposed out of the iron port and is provided with an oxygen interface, the front lance body is made by coating one section of a liner tube with a refractory material, the middle part of the refractory material is embedded with at least one thermocouple at intervals, the other section of the liner tube forms the rear lance body, the thermocouple is connected with an external temperature display through a wire, and when the front lance body is embedded in the iron port, the thermocouple at the rearmost end is arranged near the inner side of the furnace wall of the iron port. The utility model can realize the accurate online tracking observation, prevent the molten iron from burning the iron port cooling wall, and avoid the major fatal accident.
Description
Technical field
The utility model relates to and a kind ofly is used for the blast furnace banking, repaiies iron mouth after blow-on and the hearth freeze-up and blows and burn the oxygen rifle, belongs to blast furnace and blows the burning equipment technical field.
Background technology
At present, both at home and abroad steel mill the blast furnace banking or in during blow-on after repairing, spray in the cupola well after taking the empty spray method of iron mouth that blast furnace top limited heat is introduced the iron mouth mostly; But when adopting this method, it is limited to introduce thermal source, and the iron mouth is usually easily shut.
Existing minority producer uses a kind of simple and easy blast furnace taphole oxygen rifle, and this oxygen gun body is the single tube through type, and back segment has flange, the side is provided with oxygen and air rapid-acting coupling, be connected with airline with oxygen respectively, peep hole is established at the rear portion, is used for manual observation oxygen rifle working condition.But this oxygen rifle is difficult in the tracing observation stove molten iron position and molten iron to the scaling loss situation of oxygen rifle, therefore blowing when burning, very easily burns out iron mouth cooling stave, and causes great serious accident.In addition, blowing the burning time of the uncontrollable oxygen rifle of this oxygen rifle is difficult to guarantee the operational use time of oxygen rifle in cupola well.
The utility model content
The technical problems to be solved in the utility model is, thereby proposes a kind ofly can effectively observe iron mouth that oxygen rifle scaling loss situation avoids iron mouth cooling stave scaling loss and blow and burn the oxygen rifle.
The technical solution of the utility model is: a kind of iron mouth blows and burns the oxygen rifle, comprises single tube through type rifle body, and described rifle body is divided into the leading portion rifle body of imbedding the iron mouth and reveals iron notch outer and be provided with the back segment rifle body of oxygen interface; Described leading portion rifle body covers refractory materials outward by a section of internal lining pipe to be made, and is embedded with at least one thermopair at interval in its refractory materials; Another section of described internal lining pipe constitutes back segment rifle body, and described thermopair is by lead external temperature indicating meter; When described leading portion rifle body was imbedded the iron mouth, the thermopair of its rearmost end was positioned near the inboard of Tie Kou furnace wall.
Iron mouth of the present utility model blows and burns the oxygen rifle before use, earlier the iron mouth is blown the leading portion rifle body that burns the oxygen rifle and imbeds the iron mouth, connects the oxygen interface of back segment rifle body, and connects thermopair and temperature indicator.In the use, open oxygen interface oxygen blast in cupola well of back segment rifle body, being blown into the interior coke of oxygen and cupola well burns, produce the condensation slag iron in a large amount of heat melts cupola wells and form the high-temperature zone in iron prebuccal area territory, when the high-temperature liquid state molten iron of iron prebuccal area contacted leading portion rifle body gradually, leading portion rifle body began slowly from melting.After the oxygen blast, can by temperature indicating device clearly on-line tracing observe the temperature variation of thermopair and the scaling loss situation of leading portion rifle body, when the electric thermo-couple temperature of observing leading portion rifle body rearmost end sharply rises to no temperature and shows, the interior leading portion rifle body of the cupola well this moment extremely close Tie Kou furnace wall of scaling loss is described, close the oxygen interface of back segment rifle body immediately and pull out iron notch and blow and burn the oxygen rifle, beat mud stifled on the iron mouth.
Like this, iron mouth of the present utility model blows and burns the oxygen rifle and compare existing iron mouth and blow and burn oxygen rifle iron mouth and blow and burn the oxygen rifle, can realize that on-line tracing is observed accurately, thereby prevent that molten iron from burning out iron mouth cooling stave, and avoid causing great serious accident.
Further improvement in the technical proposal is, described leading portion rifle body thermopair and leading portion rifle body distance foremost foremost is the first definite value length, described leading portion rifle body foremost thermopair and the distance of the thermopair of leading portion rifle body rearmost end be the second definite value length, described oxygen interface is connected to control valve and under meter.
So in use, after oxygen blast, pick up counting and count the initial value of down-off meter; When observing leading portion rifle body electric thermo-couple temperature foremost and sharply rise to no temperature and show, stop timing and also count down the numerical value of under meter at this moment, certainly the time of melting of the first definite value length section leading portion rifle body under flow number and the meter is divided by, can obtain the oxygen flow of the first definite value length section leading portion rifle body when melting, the first definite value length and the second definite value length being divided by is multiplied by melting the time certainly of the first definite value length section leading portion rifle body more again, can obtain melting the time certainly of the second definite value length section leading portion rifle body.Then, certainly melt the ratio relation of time according to the oxygen flow and the second definite value length section leading portion rifle body, increase or reduce oxygen flow by adjusting control valve, thereby reduce or increase melting the time certainly of the second definite value length section leading portion rifle body, and then may command iron mouth blows and burns the oxygen operational use time of rifle in cupola well.
Description of drawings
Be described further of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is that the utility model embodiment one iron mouth blows the structural representation that burns the oxygen rifle.
Fig. 2 is that the utility model embodiment two iron mouths blow the structural representation that burns the oxygen rifle.
Illustrate: the 1-stainless steel inner lining tube 2-corundum based refractory materials 3-first thermopair 4-second thermopair 5-ball valve 6-second ball valve 7-oxygen interface 8-second oxygen interface 9-leading portion rifle body 10-back segment rifle body 11-under meter 12-second under meter
Embodiment
Embodiment one
The iron mouth of present embodiment blows and burns the oxygen rifle as shown in Figure 1, comprises single tube through type rifle body, and the rifle body is divided into the leading portion rifle body 9 of imbedding the iron mouth and reveals the outer back segment rifle body 10 of iron notch.Leading portion rifle body 9 adds cast corundum based refractory materials 2 by a section of stainless steel inner lining tube 1 and makes, and another section of stainless steel inner lining tube 1 constitutes back segment rifle body 10; Being embedded with two thermopairs at interval in refractory materials 2, is respectively to be located at leading portion rifle body 9 first thermopair 3 and second thermopair 4 of being located at leading portion rifle body 9 rearmost ends foremost.First thermopair 3 and second thermopair 4 are by lead external temperature indicating meter.First thermopair 3 is the predefined first definite value length with leading portion rifle body 9 distance foremost, and the distance of first thermopair 3 and second thermopair 4 is the predefined second definite value length.The second definite value length designs in advance according to the oxygen blow duration of different hearth freeze-up situations and the expection of different blast furnace.Back segment rifle body 10 is provided with oxygen interface 7, and oxygen interface 7 places are connected to ball valve 5 and under meter 11.When described leading portion rifle body was imbedded the iron mouth, second thermopair 4 was positioned near the inboard of Tie Kou furnace wall.
The service condition that present embodiment iron mouth blows burning oxygen rifle (hereinafter to be referred as the oxygen rifle) is as follows:
One, before the use, earlier the leading portion rifle body 9 of oxygen rifle is imbedded the iron mouth, connect the oxygen interface 7 of back segment rifle body 10, and connect first thermopair 3, second thermopair 4 and the temperature indicator.
Two, in the use, open ball valve 5 oxygen blast in cupola well, being blown into the interior coke of oxygen and cupola well burns, produce the condensation slag iron in a large amount of heat melts cupola wells and form the high-temperature zone in iron prebuccal area territory, when the high-temperature liquid state molten iron of iron prebuccal area contacted the leading portion rifle body 9 of oxygen rifle gradually, 9 beginnings of leading portion rifle body were slowly from melting.After the oxygen blast, can by temperature indicating device clearly on-line tracing observe the temperature variation of thermopair and the scaling loss situation of oxygen rifle.After oxygen blast, pick up counting and count the initial value of down-off meter 11; When observing first thermopair, 3 temperature and sharply rise to no temperature and show, stop timing and also count down the numerical value of under meter 11 at this moment, certainly the time of melting of the first definite value length section leading portion rifle body 9 under flow number and the meter is divided by, can obtain the oxygen flow of the first definite value length section leading portion rifle body 9 when melting, the first definite value length and the second definite value length being divided by is multiplied by melting the time certainly of the first definite value length section leading portion rifle body 9 more again, can obtain melting the time certainly of the second definite value length section leading portion rifle body 9.Then, certainly melt the ratio relation of time according to the oxygen flow and the second definite value length section leading portion rifle body 9, increase or reduce oxygen flow by regulating ball valve 5, thereby reduce or increase melting the time certainly of the second definite value length section leading portion rifle body 9, and then operational use time and first stove the tap a blast furnace time of the leading portion rifle body 9 of may command oxygen rifle in cupola well is complementary.When observing second thermopair, 4 temperature and sharply rise to no temperature and show, the leading portion rifle body 9 that oxygen rifle in the cupola well this moment be described scaling loss is closed ball valve 5 immediately and is extracted the oxygen rifle near the Tie Kou furnace wall, beats mud and blocks up upward iron mouth.Like this, can prevent that molten iron from burning out iron mouth cooling stave, thereby avoid causing great serious accident.
Obviously, present embodiment iron mouth being blown a kind of scheme of burning after the oxygen rifle is simplified is: save first thermopair 3, only keep one second thermopair 4; Ball valve 5 and the under meter 11 of being located at oxygen interface 7 places simultaneously can save, and are controlled by the external oxygen source of the gas from the oxygen flow that oxygen interface 7 feeds.
Embodiment two
The iron mouth of present embodiment blows and burns the oxygen rifle as shown in Figure 2, the iron mouth of itself and embodiment one blows that to burn oxygen rifle structure basic identical, different is: increase by one second oxygen interface 8, one second ball valve 6 of corresponding increase and second under meter 12, oxygen interface 7 is connected with back segment rifle body 10 by threeway 13 with the second oxygen interface 8.Like this, oxygen interface, under meter and ball valve all are two, can regulate oxygen flow more accurately.
Iron mouth of the present utility model blows burning oxygen rifle and is not limited to the various embodiments described above, such as: 1) thermopair also can be three or more; 2) ball valve also can be gate valve or other control valves; 3) corundum based refractory materials 2 also can be substituted by other refractory materialss, and stainless steel inner lining tube can be substituted by the internal lining pipe of other materials; 4) refractory materials also can be to be wrapped in outside the internal lining pipe except being cast in internal lining pipe, and perhaps other modes are overlying on outside the internal lining pipe; Or the like.All employings are equal to replaces the technical scheme that forms, and all drops on the protection domain of the utility model requirement.
Claims (5)
1. an iron mouth blows and burns the oxygen rifle, comprises single tube through type rifle body, and described rifle body is divided into the leading portion rifle body of imbedding the iron mouth and reveals iron notch outer and be provided with the back segment rifle body of oxygen interface; It is characterized in that: described leading portion rifle body covers refractory materials outward by a section of internal lining pipe to be made, and is embedded with at least one thermopair at interval in its refractory materials; Another section of described internal lining pipe constitutes back segment rifle body, and described thermopair is by lead external temperature indicating meter; When described leading portion rifle body was imbedded the iron mouth, the thermopair of its rearmost end was positioned near the inboard of Tie Kou furnace wall.
2. blow according to the described iron mouth of claim 1 and burn the oxygen rifle, it is characterized in that: described leading portion rifle body thermopair and leading portion rifle body distance foremost foremost is the first definite value length, described leading portion rifle body foremost thermopair and the distance of the thermopair of leading portion rifle body rearmost end be the second definite value length, described oxygen interface is connected to control valve and under meter.
3. blow according to the described iron mouth of claim 2 and burn the oxygen rifle, it is characterized in that: described oxygen interface, under meter and control valve all are two.
4. blow according to the described iron mouth of claim 3 and burn the oxygen rifle, it is characterized in that: described thermopair is second thermopair of being located at leading portion rifle body first thermopair foremost and being located at leading portion rifle body rearmost end.
5. the arbitrary described iron mouth according to claim 1-4 blows burning oxygen rifle, and it is characterized in that: described control valve is a ball valve, and described internal lining pipe is a stainless steel inner lining tube, and described refractory materials is to be cast in the outer corundum based refractory materials of internal lining pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200455393U CN201437541U (en) | 2009-05-21 | 2009-05-21 | Iron port blow-burning oxygen lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200455393U CN201437541U (en) | 2009-05-21 | 2009-05-21 | Iron port blow-burning oxygen lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437541U true CN201437541U (en) | 2010-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200455393U Expired - Fee Related CN201437541U (en) | 2009-05-21 | 2009-05-21 | Iron port blow-burning oxygen lance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201437541U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911471B (en) * | 2014-03-31 | 2016-01-20 | 江苏永钢集团有限公司 | Iron mouth oxygen gun apparatus is burnt before a kind of State of Blast Furnace |
| CN105586458A (en) * | 2016-03-03 | 2016-05-18 | 重庆钢铁(集团)有限责任公司 | Iron notch burn-through method for blast furnace to return to work |
| CN105586460A (en) * | 2016-03-03 | 2016-05-18 | 重庆钢铁(集团)有限责任公司 | Burning iron notch section structure for blast furnace iron notch burn-through device |
| CN105586459A (en) * | 2016-03-03 | 2016-05-18 | 重庆钢铁(集团)有限责任公司 | Cooling protection structure for oxygen supply pipe of iron notch burn-through device |
| CN105671230A (en) * | 2016-03-03 | 2016-06-15 | 重庆钢铁(集团)有限责任公司 | Device for communicating air ports with iron notches of iron-smelting blast furnace by burning |
| 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 |
-
2009
- 2009-05-21 CN CN2009200455393U patent/CN201437541U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911471B (en) * | 2014-03-31 | 2016-01-20 | 江苏永钢集团有限公司 | Iron mouth oxygen gun apparatus is burnt before a kind of State of Blast Furnace |
| CN105586458A (en) * | 2016-03-03 | 2016-05-18 | 重庆钢铁(集团)有限责任公司 | Iron notch burn-through method for blast furnace to return to work |
| CN105586460A (en) * | 2016-03-03 | 2016-05-18 | 重庆钢铁(集团)有限责任公司 | Burning iron notch section structure for blast furnace iron notch burn-through device |
| CN105586459A (en) * | 2016-03-03 | 2016-05-18 | 重庆钢铁(集团)有限责任公司 | Cooling protection structure for oxygen supply pipe of iron notch burn-through device |
| CN105671230A (en) * | 2016-03-03 | 2016-06-15 | 重庆钢铁(集团)有限责任公司 | Device for communicating air ports with iron notches of iron-smelting blast furnace by burning |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20180521 |