CN208844120U - A kind of blast furnace taphole visualization wind oxygen rifle - Google Patents
A kind of blast furnace taphole visualization wind oxygen rifle Download PDFInfo
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- CN208844120U CN208844120U CN201821363225.3U CN201821363225U CN208844120U CN 208844120 U CN208844120 U CN 208844120U CN 201821363225 U CN201821363225 U CN 201821363225U CN 208844120 U CN208844120 U CN 208844120U
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- wind oxygen
- oxygen
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Abstract
A kind of blast furnace taphole visualization wind oxygen rifle, including wind oxygen rifle pipe, the outboard end of wind oxygen rifle pipe sets gradually sight glass and cue ball valve, sight glass is to be detachably connected with wind oxygen rifle pipe, the blast pipe and oxygen feeding tube of connection wind oxygen rifle pipe are successively arranged at outboard end in the pipe shaft of wind oxygen rifle pipe, oxygen feeding tube is equipped with oxygen feeding tube ball valve, and blast pipe is equipped with blast pipe ball valve.Sight glass is arranged in the end of wind oxygen rifle in the utility model, by sight glass it can be observed that the state of cokes in hearth burning, and amount of oxygen is adjusted according to flame color, guarantee required amount of oxygen in the safe handling and cupola well of wind oxygen rifle, avoid because Oxygen control it is improper caused by wind oxygen rifle damage, extend the service life of wind oxygen rifle.When blast furnace opening, sight glass is removed, closes blast pipe, oxygen hose ball valve, opens main valve, flows out the slag iron flowed out from cupola well through cue ball valve along wind oxygen rifle pipe, it is determined that flowing molten iron direction avoids and runs the generation of iron accident, realizes safe and smooth tapping.
Description
Technical field
The utility model relates to a kind of tool that blast furnace uses, especially blast furnace taphole visualization wind oxygen rifles.
Background technique
Blow-on after blast furnace banking is an important engineering, each link of blast furnace opening process require technical staff and
Operator pays much attention to, in strict accordance with guidelines, to guarantee blast furnace opening success.It is mentioned as blast-furnace technique is horizontal
Height, evaluation blast furnace opening whether the standard of success is also improving, except guarantee furnace condition anterograde and can safe and smooth tapping with
And quickly up to except producing, high efficiency and the target that low consumption has become important evaluation index and insider pursues.In recent years
Carry out the national attention dynamics to environmental protection to continue to increase, according to air quality, limited production is required to iron and steel enterprise or is stopped production, is often gone out
Now short-term blast furnace stops production.Iron-smelting generally takes the mode of blast furnace banking, and limited production terminates, and blast furnace carries out the blow-on after stewing furnace.
Guide duct is installed using from iron mouth by blow-on process majority enterprise, allows the interior coal gas generated of furnace to be discharged from iron mouth guide duct, protects
Gas permeability of the air port to iron mouth is demonstrate,proved, the coal gas of blowing is lighted in guide duct front end with open fire.This method will cause a large amount of coal
Blast takes, and also will cause a large amount of dust in cupola well and is discharged from guide duct, pollutes cast house environment；Also some enterprises use
Pre-buried high-pressure air hose in iron mouth pore passage, conveys air into blast furnace crucibe from high-pressure air hose always after blow-on, and which solves
The shortcomings that using guide duct coal gas, flour dust overflow, but take this mode often and will appear the former furnace iron molten iron physics of blow-on
Hot low, poor fluidity；There are individual enterprises to use iron one's intention as revealed in what one says oxygen rifle, but since the defect of wind oxygen rifle structure design can not root recently
Amount of oxygen is adjusted according to coke combustion state in furnace, is operated by rule of thumb entirely, it is easy to wind oxygen rifle caused by due to Oxygen control is improper
Damage.
Utility model content
The purpose of this utility model is that aiming at the disadvantages of the prior art, providing one kind can be observed combustion state in furnace,
And the blast furnace taphole visualization wind oxygen rifle of wind oxygen amount is adjusted in time.
Problem described in the utility model is realized with following technical proposals:
A kind of blast furnace taphole visualization wind oxygen rifle, including wind oxygen rifle pipe, the outboard end of wind oxygen rifle pipe, which is set gradually, to be pried through
Mirror and cue ball valve, sight glass are to be detachably connected with wind oxygen rifle pipe, are successively arranged at outboard end in the pipe shaft of wind oxygen rifle pipe
It is connected to the blast pipe and oxygen feeding tube of wind oxygen rifle pipe, oxygen feeding tube is equipped with oxygen feeding tube ball valve, and blast pipe is equipped with blast pipe ball valve.
Above-mentioned blast furnace taphole visualization wind oxygen rifle, the inner end of the wind oxygen rifle pipe are successively arranged diameter contraction section and small
Diameter segment, wind oxygen rifle pipe are equipped with gas vent close to diameter contraction section, and gas vent distribution number on the outer wall of wind oxygen rifle pipe is arranged, adjacent
The gas vent of row is interspersed.
Above-mentioned blast furnace taphole visualization wind oxygen rifle, wind oxygen rifle pipe front are equipped with principal pressure table, and principal pressure epitope is in air inlet
Between pipe and cue ball valve；Oxygen feeding tube is equipped with oxygen gauge；Blast pipe is equipped with air manometer.
Above-mentioned blast furnace taphole visualization wind oxygen rifle, is equipped with boosting stake in the middle part of wind oxygen rifle pipe, outside boosting stake and wind oxygen rifle pipe
Wall is fixedly connected.
Three rows, 5 gas vents of every row are arranged in above-mentioned blast furnace taphole visualization wind oxygen rifle, the gas vent.
Sight glass is arranged in the end of wind oxygen rifle in the utility model, by sight glass it can be observed that cokes in hearth burns
State, and according to flame color adjust amount of oxygen, guarantee wind oxygen rifle safe handling and cupola well in required amount of oxygen, keep away
Exempted from because Oxygen control it is improper caused by wind oxygen rifle damage, substantially prolong the service life of wind oxygen rifle.When blast furnace opening, remove
Sight glass closes blast pipe ball valve, oxygen port ball valve, opens main valve, passes through the slag iron flowed out from cupola well along wind oxygen rifle pipeline
Cue ball valve outflow, it is determined that flowing molten iron direction avoids and runs the generation of iron accident, realizes safe and smooth tapping.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the utility model；
The A direction view (amplification) of Fig. 2 figure 1 above.
Each list of reference numerals in figure are as follows: 1, wind oxygen rifle pipe, 2, gas vent, 3, boosting stake, 4, oxygen feeding tube, 5, blast pipe, 6, master
Ball valve, 7, sight glass, 8, principal pressure table, 9, air manometer, 10, blast pipe ball valve, 11, oxygen feeding tube ball valve, 12, oxygen pressure
Table.
Specific embodiment
Referring to Fig. 1, Fig. 2, the utility model includes wind oxygen rifle pipe 1, the outboard end (right end) of use state leeward oxygen rifle pipe
Outside furnace body, sight glass 7 and cue ball valve 6 are set gradually in the outboard end of wind oxygen rifle pipe, sight glass and wind oxygen rifle pipe use spiral shell
It tethers and the detachable connection methods such as connects or be clamped, quickly to be dismounted from wind oxygen rifle pipe.It is close in the pipe shaft of wind oxygen rifle pipe
The blast pipe 5 and oxygen feeding tube 4 of connection wind oxygen rifle pipe are successively arranged at outboard end out, blast pipe is equipped with blast pipe ball valve 10 and sky
Atmospheric pressure table 9.Oxygen feeding tube is equipped with oxygen feeding tube ball valve 11 and oxygen gauge 12.Setting blast pipe and oxygen feeding tube can will mix
Compressed air and oxygen be sent into furnace in, reduce oxygen concentration, extend oxygen rifle service life.Use state leeward oxygen rifle pipe
Inner end (left end) be located in furnace body, the inner end of wind oxygen rifle pipe is equipped with diameter contraction section and reduced diameter section, and wind oxygen rifle pipe leans on
Nearly diameter contraction section is equipped with gas vent 2, for convenient for being uniformly vented, gas vent distribution number on the outer wall of wind oxygen rifle pipe is arranged, adjacent
The gas vent of row is interspersed.Three rows, 5 gas vents of every row are arranged in gas vent in illustrated embodiment.For convenient for operation, wind oxygen rifle
Boosting stake 3 is equipped in the middle part of pipe, boosting stake is fixedly connected with wind oxygen rifle pipe outer wall.
The utility model use process is as follows: 24 hours before blast furnace cold stoking puts the furnace in blast, with expansion bit bore iron mouth,
Be drilled into it is motionless, with oxygen burn iron mouth, until iron mouth depth reach cupola well diameter more than half, the front end Tie Kou burns space as far as possible.
The residue being trapped in iron mouth pore passage is dredged with tapping machine within air-supply first 10 hours.The wind oxygen rifle pipe is inserted into iron mouth pore passage,
Red coke is not pushed up as far as possible, making wind oxygen rifle pipe front end, there are gaps.Wind oxygen rifle pipe and iron mouth pore passage are sealed with castable.Using wind
Oxygen rifle is a sticker for method, it may be assumed that and it is smooth with 5mm asbestos cord at its leading portion 2500mm before the insertion of wind oxygen rifle pipe, it is closely wound, it is solid with iron wire
Surely it is spaced 500mm, is equally closely wound asbestos cord, during which wraps wind oxygen rifle with hydrous taphole loam, stemming exterior plastic band is fixed, so
Iron mouth is inserted into wind oxygen rifle pipe front afterwards.After oxygen rifle of keeping watch pipe is embedded at iron mouth, then tamped from the inside to surface with castable.Iron oral pore
Surrounding is obturaged with castable.Then compressed air source is connected into blast pipe, source of oxygen connects oxygen feeding tube；Cue ball valve is opened, is passed through
Variation in sem observation furnace is pried through, according to furnace flame color and each gage pressure adjustment amount of oxygen and air capacity are combined, to protect
There is lasting heat supply in card cupola well, eliminates the slag iron shell inside cupola well, avoid tuyere case scaling loss.Feelings are fluctuated according to pressure gauge
Condition and air supply time determine the tapping outlet time, close cue ball valve before being open, remove sight glass, close blast pipe ball valve and oxygen feeding tube
Then ball valve opens cue ball valve, so that it may realize safely and fast smooth tapping.
Claims (5)
1. a kind of blast furnace taphole visualization wind oxygen rifle, it is characterised in that: including wind oxygen rifle pipe (1), the outboard end of wind oxygen rifle pipe
Sight glass (7) and cue ball valve (6) are set gradually, sight glass is to be detachably connected with wind oxygen rifle pipe, is leaned in the pipe shaft of wind oxygen rifle pipe
The blast pipe (5) and oxygen feeding tube (4) of connection wind oxygen rifle pipe are successively arranged at nearly outboard end, oxygen feeding tube is equipped with oxygen feeding tube ball valve
(11), blast pipe is equipped with blast pipe ball valve (10).
2. blast furnace taphole according to claim 1 visualization wind oxygen rifle, it is characterised in that: the inside of the wind oxygen rifle pipe
End is successively arranged diameter contraction section and reduced diameter section, and wind oxygen rifle pipe is equipped with gas vent (2) close to diameter contraction section, and gas vent is in wind
Distribution number is arranged on the outer wall of oxygen rifle pipe, and the gas vent of adjacent row is interspersed.
3. blast furnace taphole according to claim 2 visualization wind oxygen rifle, it is characterised in that: wind oxygen rifle pipe front is equipped with master
Pressure gauge (8), principal pressure epitope is between blast pipe and cue ball valve；Oxygen feeding tube is equipped with oxygen gauge (12)；On blast pipe
Equipped with air manometer (9).
4. blast furnace taphole according to claim 3 visualization wind oxygen rifle, it is characterised in that: be equipped with and help in the middle part of wind oxygen rifle pipe
Stake (3) are pushed away, boosting stake is fixedly connected with wind oxygen rifle pipe outer wall.
5. blast furnace taphole according to claim 4 visualization wind oxygen rifle, it is characterised in that: the gas vent setting three
Row, 5 gas vents of every row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821363225.3U CN208844120U (en) | 2018-08-23 | 2018-08-23 | A kind of blast furnace taphole visualization wind oxygen rifle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821363225.3U CN208844120U (en) | 2018-08-23 | 2018-08-23 | A kind of blast furnace taphole visualization wind oxygen rifle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208844120U true CN208844120U (en) | 2019-05-10 |
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ID=66357207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821363225.3U Active CN208844120U (en) | 2018-08-23 | 2018-08-23 | A kind of blast furnace taphole visualization wind oxygen rifle |
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| Country | Link |
|---|---|
| CN (1) | CN208844120U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331245A (en) * | 2019-08-05 | 2019-10-15 | 山西新泰钢铁有限公司 | Blast furnace taphole oxygen-enriching device |
| CN111705176A (en) * | 2020-05-21 | 2020-09-25 | 南京钢铁股份有限公司 | Method for discharging slag iron by using oxygen lance during blow-in of blast furnace and oxygen lance thereof |
| CN111809009A (en) * | 2020-06-13 | 2020-10-23 | 安徽长江钢铁股份有限公司 | Furnace condition quick recovery device for long-term unplanned damping down |
| CN111996317A (en) * | 2020-08-27 | 2020-11-27 | 山西太钢不锈钢股份有限公司 | Method for heating furnace hearth during furnace-closing period of blast furnace |
| CN113564290A (en) * | 2021-07-29 | 2021-10-29 | 北京首钢股份有限公司 | Monitoring system and method for blast furnace iron notch oxygen lance |
-
2018
- 2018-08-23 CN CN201821363225.3U patent/CN208844120U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331245A (en) * | 2019-08-05 | 2019-10-15 | 山西新泰钢铁有限公司 | Blast furnace taphole oxygen-enriching device |
| CN110331245B (en) * | 2019-08-05 | 2024-04-16 | 山西新泰钢铁有限公司 | Oxygen-enriching device for blast furnace iron notch |
| CN111705176A (en) * | 2020-05-21 | 2020-09-25 | 南京钢铁股份有限公司 | Method for discharging slag iron by using oxygen lance during blow-in of blast furnace and oxygen lance thereof |
| CN111705176B (en) * | 2020-05-21 | 2022-03-22 | 南京钢铁股份有限公司 | Method for discharging slag iron by using oxygen lance during blow-in of blast furnace and oxygen lance thereof |
| CN111809009A (en) * | 2020-06-13 | 2020-10-23 | 安徽长江钢铁股份有限公司 | Furnace condition quick recovery device for long-term unplanned damping down |
| CN111996317A (en) * | 2020-08-27 | 2020-11-27 | 山西太钢不锈钢股份有限公司 | Method for heating furnace hearth during furnace-closing period of blast furnace |
| CN113564290A (en) * | 2021-07-29 | 2021-10-29 | 北京首钢股份有限公司 | Monitoring system and method for blast furnace iron notch oxygen lance |
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