CN209210845U - A kind of blast furnace taphole oxygen rifle - Google Patents
A kind of blast furnace taphole oxygen rifle Download PDFInfo
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- CN209210845U CN209210845U CN201821812864.3U CN201821812864U CN209210845U CN 209210845 U CN209210845 U CN 209210845U CN 201821812864 U CN201821812864 U CN 201821812864U CN 209210845 U CN209210845 U CN 209210845U
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- oxygen
- gun barrel
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- hose
- blast furnace
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Abstract
The utility model provides a kind of blast furnace taphole oxygen rifle, gun barrel is using the variable diameter seamless steel pipe that front is thin, rear portion is thick, the inclination of gun barrel front end is connected with oxygen blast mouth, refractory ceramics spray paint is coated on the gun barrel inner wall of oxygen blast oral area position, casing is cased with outside gun barrel, high temperature resistant castable is perfused between casing and gun barrel, gun barrel rear portion and rear end are respectively welded oxygen hose and air hose, it is connected separately with shut-off valve, flowmeter, pressure gauge and shutter on oxygen hose and air hose, is embedded with thermometric galvanic couple in the high temperature resistant castable of sleeve portion.The utility model can shorten the processing time, improve operating efficiency, oxygen rifle is avoided to burn out the serious accident of cupola well and iron mouth region domain cooling wall, reduce causality loss quickly by blast furnace crucibe iron mouth burn through.
Description
Technical field
The utility model belongs to ironmaking machinery equipment field more particularly to a kind of blast furnace taphole oxygen rifle.
Background technique
Blast fumance is ever-changing, stokehold before annual overhaul, blow-in in the intermediate repair and processing cupola well freezing accident top priority, just
It is in the shortest time burn through between the iron mouth of cupola well and air port, it is therefore an objective to the liquid slag iron energy of air port zone melting after air-supply
Iron mouth region domain is smoothly flowed into, is finally flowed out from Tie Kou.In repair, the place of the recovery time of annual overhaul, gobbed up and gobbed up
Reason length of time, loss size depend entirely on the time of burn through between iron mouth and air port.At present solve annual overhaul, blow-in in the intermediate repair and
The best way for handling gobbed up is exactly that iron mouth buries oxygen rifle method.But oxygen rifle used at present is found in use, existing
There are design defect in structure for some oxygen rifles.It is that the design of oxygen rifle front end oxygen blast hole is unreasonable first.The oxygen blast hole of oxygen rifle is in oxygen
The front of rifle, in addition iron mouth pore passage design angle is downward 10 ° of angle, when the normal oxygen blast of oxygen rifle, really to cupola well
Lower part and the oxygen blast of cupola well center, cause the effect of oxygen gun blowing to be substantially reduced, extend the processing of furnace condition recovery, gobbed up
Time.Secondly oxygen rifle does not have flow, pressure-display device.During using oxygen gun blowing, oxygen blown effect is sentenced by rule of thumb entirely
It is disconnected.It is finally that oxygen rifle front end does not have temperature monitoring equipment.During oxygen gun blowing, if operator operation it is lack of standardization or when
Between, oxygen content control it is improper, will cause the ceramic cup in cupola well iron mouth region domain, the damage of carbon brick, it is serious also to burn out iron mouth region domain
Cooling wall, cause furnace skin the accidents such as to burn, even directly contribute blast furnace stopping overhaul when serious.Also it once celebrated the New Year or the Spring Festival in ironworks
Iron mouth buries the improper serious accident for causing iron mouth region domain cooling wall to burn out of oxygen lance operation when repairing blow-on.
Summary of the invention
The utility model be intended to provide it is a kind of can accurately control oxygen amount and pressure, quickly by blast furnace crucibe iron mouth burn through, contracting
Weakness manages the time, improves operating efficiency, avoids the blast furnace taphole oxygen rifle of equipment breakdown.
For this purpose, the technical solution that the utility model is taken are as follows:
A kind of blast furnace taphole oxygen rifle, including gun barrel, casing, thermometric galvanic couple, oxygen hose, compressed air hose, shut-off valve, stream
Scale, pressure gauge and shutter；Using the variable diameter seamless steel pipe that front is thin, rear portion is thick, the inclination of gun barrel front end is connected with blows gun barrel
Oxygen mouth is coated with refractory ceramics spray paint on the gun barrel inner wall of oxygen blast oral area position, is cased with casing outside gun barrel, casing with
High temperature resistant castable is perfused between gun barrel, gun barrel rear portion and rear end are respectively welded oxygen hose and air hose, oxygen hose and sky
It is respectively connected with shut-off valve, flowmeter, pressure gauge and shutter on tracheae, is embedded with survey in the high temperature resistant castable of sleeve portion
Warm galvanic couple.
The position of the thermometric galvanic couple is located at away from 480~550 ㎜ of gun barrel front end oxygen blast mouth.
Angle between the oxygen blast mouth and gun barrel is 45 °~90 °.
The utility model has the following beneficial effects:
The utility model can accurately control oxygen amount and pressure, quickly by blast furnace crucibe iron mouth burn through, shorten the processing time, mention
High operating efficiency is practical newer than without using this using the utility model oxygen rifle annual overhaul, blow-in in the intermediate repair recovery time at 1 day or so
Type shortens 1~2 day time, creates advantage to shift to an earlier date blow-on.Meanwhile the utility model can effectively avoid iron mouth oxygen rifle and make
With the serious accident for burning out cupola well and iron mouth region domain cooling wall in the process, causality loss is reduced.
Detailed description of the invention
Fig. 1 is blast furnace taphole oxygen rifle structural schematic diagram.
In figure: thermometric galvanic couple 1, oxygen blast mouth 2, refractory ceramics spray paint 3, casing 4, gun barrel 5, high temperature resistant castable 6, oxygen
Tracheae 7, air hose 8, oxygen stop valve 9, oxygen flowmete 10, oxygen gauge 11, oxygen shutter 12, air cutoff valve
13, airflow meter 14, air manometer 15, air shutter 16.
Specific embodiment
The utility model blast furnace taphole oxygen rifle is by thermometric galvanic couple 1, oxygen blast mouth 2, casing 4, gun barrel 5, oxygen hose 7, sky
Tracheae 8, oxygen stop valve 9, oxygen flowmete 10, oxygen gauge 11, oxygen shutter 12, air cutoff valve 13, air stream
Scale 14, air manometer 15, air shutter 16 are formed.Gun barrel 5 uses the variable diameter seamless steel pipe that front is thin, rear portion is thick,
Front uses diameter 26mm seamless steel pipe, and rear portion uses diameter 33mm seamless steel pipe.5 front end of gun barrel is vertically connected with oxygen blast mouth 2,
Angle i.e. between oxygen blast mouth 2 and gun barrel 5 is 90 °；Refractory ceramics is coated on 5 inner wall of gun barrel at 2 position of oxygen blast mouth
Spray paint 3 is cased with casing 4 outside gun barrel 5, and high temperature resistant castable 6, the welding of 5 rear portion of gun barrel are perfused between casing 4 and gun barrel 5
There is oxygen hose 7, rear end is welded with air hose 8, is connected with oxygen stop valve 9, oxygen flowmete 10, oxygen on oxygen hose 7 in turn
Pressure gauge 11, oxygen shutter 12；It is connected with air cutoff valve 13, airflow meter 14, air manometer on air hose 8 in turn
15 and air shutter 16.In addition, thermometric galvanic couple 1 is embedded in the high temperature resistant castable 6 of 4 part of casing, thermometric galvanic couple 1
Position is located at away from 52 distance of front end oxygen blast mouth of gun barrel, 500 ㎜.
In oxygen gun blowing operation, the oxygen rifle head temperature that can be constantly transmitted according to front end thermometric galvanic couple 1 changes to judge
The working condition and cupola well slag iron of oxygen rifle melt situation.Illustrate have fusing when 1 temperature of thermometric galvanic couple reaches certain temperature
Slag iron；When 1 temperature of thermometric galvanic couple disappears, it was demonstrated that oxygen rifle starts to melt herein；It must stop oxygen gun blowing operation immediately.Because thus
Place is the cup face of cupola well iron mouth region domain ceramic cup, such as stops oxygen blast operation not in time, it will to the ceramic cup in cupola well iron mouth region domain
It is damaged with carbon brick.
Oxygen rifle front end oxygen blast mouth 2 is designed as vertically upward.Its effect is the oxygen amount and Tuyere Raceway that oxygen blast mouth 2 is blown into
Communication effectiveness is more preferable, shortens the processing time.
It is coated with refractory ceramics spray paint 3 on 5 inner wall of gun barrel, high temperature resistant castable is perfused between casing 4 and gun barrel 5
6, effect is to extend oxygen rifle activity duration and service life, improves oxygen rifle security performance.
Oxygen shutter 12, air shutter 16 are installed in oxygen rifle rear end oxygen hose 7,8 inlet of air hose, can prevent from closing
The slag iron that cupola well melts when oxygen stop valve 9 and air cutoff valve 13 is flow backwards along oxygen rifle occurs oxygen back-fire trouble.Work as oxygen rifle
When stopping operation, first oxygen shutter 12, air shutter 16 are closed, are then shut off oxygen stop valve 9 and air cutoff valve
13, finally oxygen rifle is extracted with casthouse equipment.
Claims (3)
1. a kind of blast furnace taphole oxygen rifle, which is characterized in that including gun barrel, casing, thermometric galvanic couple, oxygen hose, compressed air hose,
Shut-off valve, flowmeter, pressure gauge and shutter；Gun barrel is using the variable diameter seamless steel pipe that front is thin, rear portion is thick, the inclination of gun barrel front end
It is connected with oxygen blast mouth, refractory ceramics spray paint is coated on the gun barrel inner wall of oxygen blast oral area position, is cased with outside gun barrel
Pipe, is perfused with high temperature resistant castable, gun barrel rear portion and rear end are respectively welded oxygen hose and air hose, oxygen between casing and gun barrel
Shut-off valve, flowmeter, pressure gauge and shutter are respectively connected on tracheae and air hose, in the high temperature resistant castable of sleeve portion
It is embedded with thermometric galvanic couple.
2. blast furnace taphole oxygen rifle according to claim 1, which is characterized in that the position of the thermometric galvanic couple is located at away from rifle
At 480~550 ㎜ of pipe front end oxygen blast mouth.
3. blast furnace taphole oxygen rifle according to claim 1, which is characterized in that the angle between the oxygen blast mouth and gun barrel
It is 45 °~90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821812864.3U CN209210845U (en) | 2018-11-06 | 2018-11-06 | A kind of blast furnace taphole oxygen rifle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821812864.3U CN209210845U (en) | 2018-11-06 | 2018-11-06 | A kind of blast furnace taphole oxygen rifle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209210845U true CN209210845U (en) | 2019-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821812864.3U Active CN209210845U (en) | 2018-11-06 | 2018-11-06 | A kind of blast furnace taphole oxygen rifle |
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| CN (1) | CN209210845U (en) |
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 |
| CN114438268A (en) * | 2022-02-11 | 2022-05-06 | 山东钢铁集团永锋临港有限公司 | Boiling device and method for processing blast furnace hearth freezing |
-
2018
- 2018-11-06 CN CN201821812864.3U patent/CN209210845U/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 |
| CN114438268A (en) * | 2022-02-11 | 2022-05-06 | 山东钢铁集团永锋临港有限公司 | Boiling device and method for processing blast furnace hearth freezing |
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