CN207362281U - A kind of converter oxygen gun takes off slag device - Google Patents
A kind of converter oxygen gun takes off slag device Download PDFInfo
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- CN207362281U CN207362281U CN201721355686.1U CN201721355686U CN207362281U CN 207362281 U CN207362281 U CN 207362281U CN 201721355686 U CN201721355686 U CN 201721355686U CN 207362281 U CN207362281 U CN 207362281U
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- slag
- oxygen rifle
- nitrogen
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- converter
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Abstract
The utility model discloses a kind of converter oxygen gun to take off slag device, including when being installed on oxygen rifle lower end and being used for oxygen rifle and depart from converter, clamps, scrapes the slag scraper of slag oxygen rifle；The nitrogen seal coordinated with nitrogen envelope seat insertion is equipped with oxygen rifle；Nitrogen seal is tapered；Cylindrical along nitrogen seal offers one in a ring, and first groove to form closed annulus is bonded with the second groove on nitrogen envelope seat；Tilted along the inner wall of nitrogen seal and offer some skewed slots, one end of the three-way pipe with nozzle is passed through in each skewed slot.Automatic spraying and slag scraper are effectively combined by the utility model, after the completion of coating spraying, slag scraper implements oxygen rifle to scrape slag operation again, solve the problems, such as that iron oxide and oxygen rifle fusion cause oxidizing slag not come off, the efficiency of steel-making is accelerated, oxygen rifle and the service life of slag scraper is extended, reduces production cost, security risk when safeguarding oxygen rifle is avoided, there is very strong generalization and practicality.
Description
Technical field
The utility model belongs to the technical field of pneumatic steelmaking, and in particular to a kind of converter oxygen gun takes off slag device.
Background technology
With the fast development of China's economy, social is continuous progressive, and crude steel yield has arranged the first in the world, in the smelting of steel
The overwhelming majority all use oxygen top blown converter steel making during refining, be hyperbaric oxygen is blown into stove with oxygen rifle at the top of the converter so that
Strengthen steelmaking process, the slag splashes during oxygen gun blowing, due to splashing slag flowing particularly when slag splashing
Property it is poor, in splash to oxygen rifle after it is not easily to fall off, cause viscous rifle, smelt the diameter after 2-3 stoves after oxygen rifle dry slag and be more than oxygen rifle mouth
Diameter, cause oxygen rifle can not propose oxygen rifle mouth, oxygen lance lifting system overtension is serious lifting wire rope to be caused to break
Split, cause serious production accident and security risk.
It is existing to solve the problems, such as oxygen rifle dry slag there are following several situations：
1st, slag is scraped using slag scraper by most of steel mills, since oxygen rifle shell is steel, there is part oxygen in converting process
Change iron to be splashed in oxygen rifle, fusion phenomenon occurs with oxygen rifle shell in the event of high temperatures for iron oxide, extremely strong with reference to power, scrapes sometimes
Slag device also can not hanging fascia, at this moment need manually to be cut off oxygen rifle in oxygen rifle mouth with hand burning torch, continue to produce using spare rifle, it is time-consuming
Arduously seriously affect production efficiency.
2nd, the steel mill having uses oxygen lance with conical, and so-called oxygen lance with conical is exactly up big and down small, is also due to iron oxide and oxygen rifle
The fusion phenomenon of shell causes oxidizing slag not come off, and sees that centrum oxygen rifle equally exists dry slag problem out of steel-making industry.
3rd, the enterprise having is applied using release coating and manually smeared in oxygen rifle, since steel-making is one stove of half an hour of working continuously
Steel, the coating service life only once, per stove manually smear not only heavy workload and and security incident takes place frequently, the enterprise also having is improved to
Automatic spraying, but effect is undesirable, maintenance load is big, when nozzle 3-4 is small after just block, the reason is that close to oxygen rifle, work as oxygen rifle
Complete blowing work and propose that oxygen rifle mouth rear surface has a partial oxidation slag, temperature is up to 700-800 degree, nozzle high temperature and has clout water
Divide flash evapn, clout accumulation is internal, causes internal diameter to diminish, furthermore oxygen rifle needs repeatedly to blow in single stove steelmaking process, not
Open slag scraper in the case of repeatedly lifting oxygen rifle, when oxygen rifle propose oxygen rifle mouth rear surface there is partial oxidation slag to come off naturally, take off
The oxidizing slag fallen is directly pounded to causing on nozzle nozzle to block, it is necessary to manually go to safeguard nozzle and need to stop converter when safeguarding
Work is smelted, reduces production efficiency.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, there is provided a kind of converter oxygen gun takes off slag device, with solution
The problem of certainly existing oxygen rifle scrapes slag, and iron oxide and oxygen rifle fusion cause oxidizing slag to be difficult to come off.
To reach above-mentioned purpose, the technical scheme adopted by the utility model is that：
A kind of converter oxygen gun is provided and takes off slag device, when it includes being installed on oxygen rifle lower end for oxygen rifle disengaging converter, folder
Hold, scrape the slag scraper of slag oxygen rifle；The nitrogen seal coordinated with nitrogen envelope seat insertion is equipped with oxygen rifle；
Nitrogen seal is tapered；Cylindrical along nitrogen seal offers one in a ring, and shape is bonded with the second groove on nitrogen envelope seat
Into the first groove of closed annulus；Tilted along the inner wall of nitrogen seal and offer some skewed slots, be passed through in each skewed slot with nozzle
Three-way pipe one end.
Preferably, nozzle is Fan spray head, and Fan spray head is located along the same line with nitrogen seal inner wall.
Preferably, the radius of Fan spray head is 2-5cm, and fan angle is 30 ° -60 °.
Preferably, skewed slot is set diagonally downward, and angle of inclination is 30 ° -60 °.
Preferably, the another both ends of three-way pipe, which are each led into, deposits in gas pond and coating case.
Preferably, the three-way pipe mouth of pipe in coating case is connected with slush pump.
Preferably, slag scraper is connected by support arm with piston cylinder.
Preferably, nitrogen envelope seat is arranged at the lower section of the slag scraper, and seals and coordinate with flue opening.
Preferably, seat is cylindrical is arranged with nitrogen inlet for nitrogen envelope, and nitrogen inlet is connected with cache slot, and cache slot passes through some
Through hole is connected with closed annulus.
Preferably, through hole is uniformly distributed on closed annulus.
Converter oxygen gun provided by the utility model takes off slag device, has the advantages that：
The utility model is equipped with multiple inclination nozzles directed downwardly on the upper edge of nitrogen seal, and nozzle inclines high temperature resistant adhesive
Tiltedly, be uniformly injected in oxygen rifle it is cylindrical on, during oxygen rifle is lifted, it is cylindrical that slag scraper shares oxygen rifle, due to oxygen rifle outside
Circle is coated with high temperature resistant adhesive, slag scraper complete to oxygen rifle scrape slag after, the surface of oxygen rifle is smooth clean, solves oxygen
Change iron and oxygen rifle is merged the problem of causing oxidizing slag to be difficult to come off.
The inert gas deposited in gas pond is passed through nozzle in the interval sprayed by nozzle by three-way pipe, avoid nozzle because
Clout accumulation is internal, causes internal diameter to diminish and even blocks the situation of nozzle.
Except this, nitrogen seal is moved down with oxygen rifle, is formed closed annulus in embedded nitrogen envelope seat, is constantly passed through in nitrogen closed
When in annulus, a high pressure annulus is formed in closed annulus, the toxic gas of channelling is made in the high pressure of high pressure annulus upwards in flue
Under, return to flue and discharged through processing, avoid toxic gas from scurrying into environment, endanger environmental and human health impacts.
Automatic spraying and slag scraper are effectively combined by the utility model, and after the completion of coating spraying, slag scraper is again to oxygen
Rifle is implemented to scrape slag operation, solves the problems, such as that iron oxide and oxygen rifle fusion cause oxidizing slag not come off, accelerates the smelting of steel-making
Efficiency is refined, oxygen rifle and the service life of slag scraper is extended, reduces production cost, the safety avoided when safeguarding oxygen rifle is hidden
Suffer from, there is very strong generalization and practicality.
Brief description of the drawings
Fig. 1 is the structure chart that converter oxygen gun takes off slag device.
Fig. 2 is the nitrogen seal structure chart that converter oxygen gun takes off slag device.
Fig. 3 is the structure chart for the nitrogen seal insertion nitrogen envelope seat action that converter oxygen gun takes off slag device.
Fig. 4 is that converter oxygen gun takes off the structure chart that slag device oxygen rifle seals seat through nitrogen.
Fig. 5 is the top view for the slag scraper that converter oxygen gun takes off slag device.
Fig. 6 takes off slag device slag scraper for converter oxygen gun and scrapes slag structure chart.
Fig. 7 is the structure chart that converter oxygen gun takes off slag device nozzle.
Wherein, 1, oxygen rifle；2nd, nitrogen seal；3rd, slag scraper；4th, nitrogen envelope seat；5th, lifting motor；6th, supporting block；7th, support arm；8、
Piston cylinder；9th, flue；10th, converter；21st, the time relay；22nd, gas pond is deposited；23rd, three-way pipe；24th, nozzle；25th, skewed slot；26、
Slush pump；27th, coating case；28th, the first groove；41st, nitrogen inlet；42nd, the second groove；43rd, cache slot；44th, closed annulus；
45th, through hole.
Embodiment
Specific embodiment of the present utility model is described below, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the scope of embodiment, to the common skill of the art
For art personnel, if various change appended claim limit and the spirit and scope of definite the utility model in,
These changes are it will be apparent that all are created in the row of protection using the utility model of the utility model design.
According to one embodiment of the application, as shown in figs. 1-7, the converter oxygen gun 1 of this programme takes off the device of slag, including peace
When being used for the disengaging converter 10 of oxygen rifle 1 loaded on 1 lower end of oxygen rifle, for clamping, scraping the slag scraper 3 of slag oxygen rifle 1.
With reference to figure 1, the upper end of oxygen rifle 1 is connected by steel cable with lifting motor 5, realizes the lifting of oxygen rifle 1.
With reference to figure 2, nitrogen seal 2 is located in oxygen rifle 1, and nitrogen seal 2 is tapered, nitrogen seal 2 it is cylindrical on offer one
The first groove 28 in a ring, along the upper edge of nitrogen seal 2,45° angle is arranged with four, six, eight ... skewed slots diagonally downward
25, one end that three-way pipe 23 carries nozzle 24 is passed through in each inclined skewed slot 25, is spray paint at 23 port of three-way pipe
Nozzle 24, the another both ends of three-way pipe 23 are deposited gas pond 22 and are connected with coating case 27 respectively.Deposit 22 memory of gas pond and be placed with the lazy of high pressure
Property gas, the three-way pipe 23 connected with depositing gas pond 22 is equipped with the time relay 21, between the completion of 24 spray paint of nozzle
Have a rest, the time relay 21 acts, and inert gas is sprayed into nozzle 24, avoids nozzle 24 from blocking.
With reference to figure 7, nozzle 24 is Fan spray head 24, and Fan spray head 24 is located on same vertical line with 2 inner wall of nitrogen seal, fans
The radius of shape nozzle 24 is 5cm, and fan angle is 60 °, and skewed slot 25 is obliquely installed along 30 ° -60 ° of the inner wall of nitrogen envelope seat 4.
Some heat-resisting materials are filled with coating case 27, heat-resisting material is by bauxite (accounting example 40%), Gao Chunshi
Ink powder (accounting example 10%), water (accounting example 40%) and chemical binder (accounting example 10%) mixing composition, coating is uniform
It is injected in outside oxygen rifle 1 and places, makes to adhere to one layer of uniform high-temperature material in oxygen rifle 1, its high temperature resistant reaches more than 1700 degree, effectively
Iron oxide, oxidizing slag is prevented to be merged with 1 rifle wall of oxygen rifle, the high purity graphite powder containing lubricating action, allows in this spray paint
Slag scraper 3 easily can strike off dry slag.The tension force of 5 steel cable of lifting motor is up to 10T newton during non-sprayable refractory, spraying
Afterwards to be down to average 6T newton, eliminating the work of 1 lifting motor of oxygen rifle, 5 high load capacity causes the security risk of wire cable rupture, subtracts
The light service life scraped slag intensity, extend slag scraper 3 of slag scraper 3.
With reference to figure 5, slag scraper 3 is connected by support arm 7 with piston cylinder 8, when the completion oxygen blowing of oxygen rifle 1, leaves converter
When 10, piston cylinder 8 drives support arm 7 to move, and the closure of slag scraper 3 is encased oxygen rifle 1, and will attach to the slag in oxygen rifle 1 and hang.
With reference to figure 6, when the lower end of oxygen rifle 1 is equipped with the disengaging converter 10 of oxygen rifle 1, for clamping, scraping the slag scraper of slag oxygen rifle 1
3；Closely sealed equipped with being open with flue 9 in the lower section of slag scraper 3, the nitrogen for sealing oxygen rifle 1 seals seat 4；Away from 5 one end of lifting motor
Oxygen rifle 1 be equipped with nitrogen envelope seat 4 insertion coordinate nitrogen seal 2.
With reference to figure 3 and Fig. 4, nitrogen envelope seat 4 it is concave, arranged on 9 opening of flue, and with the closely sealed connection of 9 opening of flue, nitrogen
Seat 4 is cylindrical is arranged with nitrogen inlet 41 for envelope, its inner circle offers the second groove 42 coordinated with the first groove 28, the first groove
28 and second groove 42 cooperatively form confined space, nitrogen inlet 41 is connected with cache slot 43, and cache slot 43 passes through some through holes
45 connect with closed annulus 44；Through hole 45 is uniformly distributed on closed annulus 44.
The workflow for the device for taking off slag to the converter oxygen gun 1 of this programme below is done as described below：
Molten iron, alloy and steel scrap are added in converter 10, lifting motor 5, which is opened, begins to decline oxygen rifle 1 from upper limit zero-bit,
(1 lower end port of oxygen rifle is located in same horizontal line with edge on nitrogen solar or lunar halo at this time), which opens, when dropping to 1 meter of position automatically sprays hopper
Two slush pumps 26 (model 4KW) in 27, its rated voltage are 220 volts of voltages, and it is right by 4 nozzles 24 to start slush pump 26
Oxygen rifle 1 is uniformly sprayed, and spray paint itself contains toughness, and nozzle 24, into 45 degree of injections, avoids coating four with 1 wall of oxygen rifle
Place splashes, and final spray paint uniformly bonds one layer on 1 surface of oxygen rifle, its average thickness is 2mm-5mm.
Meanwhile nitrogen seal 2 is moved down with oxygen rifle 1, closed annulus is formed in embedded nitrogen envelope seat 4, nitrogen is constantly passed through
In closed annulus, a high pressure annulus is formed in closed annulus, the flue gas backspace flue 9 of upward channelling is forced, avoids flue gas from letting out
Leakage, endangers environmental and human health impacts.
When oxygen rifle 1 is dropped at 8 meters, stopping slush pump 26 is powered, while opening time relay 21, makes to deposit in gas pond 22
High-pressure inert gas run through three-way pipe 23 and nozzle 24, by nozzle 24 clout blow out, avoid nozzle 24 because of clout
Accumulation is internal, causes internal diameter to diminish and even blocks the situation of nozzle 24.The time relay 21 is arranged to 5 seconds, is closed after 5 seconds lazy
Property gas pipeline on battery valve, oxygen rifle 1 continues to drop to lower limit and carries out oxygen blowing work.
After 23 nitrogen flushing slag splashing of 1 oxygen blast smelting of oxygen rifle and three-way pipe, indicate that this stove steel smelting is completed, and at this time
Oxygen rifle 1 surface adhesion, one layer of slag, thickness differed for 5mm-30mm, and oxygen rifle 1 is lifted since lower limit, and piston cylinder 8 drives
Support arm 7 moves, and then two closures of slag scraper 3 is encased oxygen rifle 1, under the cooperation of lifting motor 5 and slag scraper 3, by oxygen rifle 1
The slag of surface adhesion strikes off, and due to there is the protection of spray paint, 1 surface of oxygen rifle is smooth clean, is ready to smelt next stove,
The slag struck off is fallen into stove for 1 mouthful by oxygen rifle, and surrounding environment will not be impacted.
Automatic spraying and slag scraper 3 are effectively combined by the utility model, and after the completion of coating spraying, slag scraper 3 is right again
Oxygen rifle 1 is implemented to scrape slag operation, solves the problems, such as that iron oxide and the fusion of oxygen rifle 1 cause oxidizing slag not come off, accelerates steel-making
Efficiency, extend oxygen rifle 1 and the service life of slag scraper 3, reduce production cost, avoid peace when safeguarding oxygen rifle
Full hidden danger, has very strong generalization and practicality.
Although being described in detail with reference to attached drawing to the embodiment of utility model, should not be construed as to this
The restriction of the protection domain of patent.In the described scope of claims, those skilled in the art are without creative work
The various modifications and deformation that can make still belong to the protection domain of this patent.
Claims (10)
1. a kind of converter oxygen gun takes off slag device, it is characterised in that：When being used for oxygen rifle disengaging converter including being installed on oxygen rifle lower end,
Clamp, scrape the slag scraper of slag oxygen rifle；The nitrogen seal coordinated with nitrogen envelope seat insertion is equipped with the oxygen rifle；
The nitrogen seal is tapered；Cylindrical along nitrogen seal offers one in a ring, and shape is bonded with the second groove on nitrogen envelope seat
Into the first groove of closed annulus；Tilted along the inner wall of the nitrogen seal and offer some skewed slots, be passed through and carry in each skewed slot
One end of the three-way pipe of nozzle.
2. converter oxygen gun according to claim 1 takes off slag device, it is characterised in that：The nozzle is Fan spray head, fan-shaped
Nozzle is located along the same line with nitrogen seal inner wall.
3. converter oxygen gun according to claim 2 takes off slag device, it is characterised in that：The radius of the Fan spray head is 2-
5cm, fan angle are 30 ° -60 °.
4. converter oxygen gun according to claim 1 takes off slag device, it is characterised in that：The skewed slot is set diagonally downward, and
Angle of inclination is 30 ° -60 °.
5. converter oxygen gun according to claim 1 takes off slag device, it is characterised in that：The another both ends of the three-way pipe lead to respectively
Enter to deposit in gas pond and coating case.
6. converter oxygen gun according to claim 5 takes off slag device, it is characterised in that：The three-way pipe mouth of pipe in the coating case
Connected with slush pump.
7. converter oxygen gun according to claim 1 takes off slag device, it is characterised in that：The slag scraper passes through support arm and piston
Cylinder connects.
8. converter oxygen gun according to claim 1 takes off slag device, it is characterised in that：The nitrogen envelope seat scrapes slag described in being arranged at
The lower section of device, and seal and coordinate with flue opening.
9. converter oxygen gun according to claim 8 takes off slag device, it is characterised in that：Seat is cylindrical is arranged with nitrogen for nitrogen envelope
Gas import, the nitrogen inlet are connected with cache slot, and the cache slot is connected by some through holes with closed annulus.
10. converter oxygen gun according to claim 9 takes off slag device, it is characterised in that：The through hole is uniformly distributed in closed
On annulus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355686.1U CN207362281U (en) | 2017-10-19 | 2017-10-19 | A kind of converter oxygen gun takes off slag device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721355686.1U CN207362281U (en) | 2017-10-19 | 2017-10-19 | A kind of converter oxygen gun takes off slag device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604125A (en) * | 2017-10-19 | 2018-01-19 | 四川企拓新材料有限公司 | A kind of converter oxygen gun takes off slag device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604125A (en) * | 2017-10-19 | 2018-01-19 | 四川企拓新材料有限公司 | A kind of converter oxygen gun takes off slag device |
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