CN107641677A - A kind of method for preventing skidding of wheels of converter oxygen gun - Google Patents
A kind of method for preventing skidding of wheels of converter oxygen gun Download PDFInfo
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- CN107641677A CN107641677A CN201711089338.9A CN201711089338A CN107641677A CN 107641677 A CN107641677 A CN 107641677A CN 201711089338 A CN201711089338 A CN 201711089338A CN 107641677 A CN107641677 A CN 107641677A
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- oxygen rifle
- oxygen
- deflection angle
- formula
- rifle
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- 239000001301 oxygen Substances 0.000 title claims abstract description 207
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 207
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 206
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 39
- 239000000498 cooling water Substances 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 4
- 238000009628 steelmaking Methods 0.000 description 20
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000002893 slag Substances 0.000 description 6
- 238000007664 blowing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009491 slugging Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The present invention relates to a kind of method for preventing skidding of wheels of converter oxygen gun, one, determine oxygen rifle load force F；2nd, the deflection angle for determining that oxygen rifle occurs under load force effect --- anti-bias hanging position oxygen rifle reserves deflection angle；3rd, deflection angle theta is reserved according to oxygen rifleB, the height difference H of oxygen rifle both sides clamp is determined, fixing chuck plate, makes the clamp of the loaded side of oxygen rifle lower H than the clamp of non-loaded side.The present invention reserves deflection angle theta when production does not start, to hanging oxygen rifleB, suffered cooling water side is offset in production process to load force and the deflection angle that occurs, reaches the accurate centering of oxygen rifle in production process.
Description
Technical field
The present invention relates to field of smelting, more particularly to a kind of method for preventing skidding of wheels of converter oxygen gun.
Background technology
Converter steelmaking process is risen in the 1960s, because it has the spies such as quick, low cost, steel grade strong adaptability
Point, it is widely used in the smelting of steel, the iron and steel output of nowadays pneumatic steelmaking production has accounted for the one of world steel yield
More than half.
Oxygen rifle is the nucleus equipment that pneumatic steelmaking supplies oxygen to bath, and it works under furnace high-temperature, is carried out using recirculated water
Cooling, its performance quality directly influence the main economic and technical indices such as steel-making Yield and quality, original fuel consumption and cost.
Smelt the speed that the requirement for oxygen rifle is oxygen stream stock and want fast, penetration capacity is eager to excel, and to have sufficiently high stirring power to molten bath
Power, slugging effect is good, splash is small, and the erosion to furnace lining is small, can neither damage furnace bottom, can not make furnace bottom rising too fast again,
Wanting caused converting process effect to seek to, quick heating, carbon drop are fast, slugging is fast, the slag getting dry time is short, it is small that furnace lining is damaged.
Oxygen rifle is made up of pipette tips, the body of a gun and gun breech, and gun body has the effect of oxygen supply and cooling concurrently.Body is by three layers of seamless steel pipe
Composition：Inner tube is oxygen channel, is the passage into cooling water between inner tube and middle tube, is between middle tube and outer tube
Exhalant canal.In pneumatic steelmaking production process, oxygen rifle directly affects the safe efficient and molten steel matter of pneumatic steelmaking production
Amount.It is unfavorable such as to there is equipment fault, operating mistake or safety measure, then may explode, have a strong impact on safety in production.Therefore
The control of oxygen rifle is that strict guarantee oxygen rifle centering perpendicularity is wanted in very important production link, particularly operating process, is otherwise held
Safety and production accident easily occurs, because oxygen rifle had both been grown, and again, associated ping is more, ensures that oxygen rifle has accurate centering perpendicularity
It is extremely crucial.
Patents oxygen rifle centering fast adjuster (publication number：CN201512552U), a kind of fast velocity modulation of oxygen rifle centering
Regulating device, including oxygen rifle flange, four adjusting nuts are set respectively on four angles of oxygen rifle flange, by the first adjustment bolt,
Two adjustment bolts, the 3rd adjustment bolt and the 4th adjustment bolt are screwed on four adjusting nuts respectively.The centering of the patent is adjusted
Regulating device structure is relatively simple, it is possible to achieve more quick regulation, but this method is entered in the case where converter does not produce
Row regulation operation, makes oxygen rifle in the case of without side loading, and its axis overlaps with center line, but in the actual steel-making life of converter
During production, the pipeline that oxygen rifle top connects in the same side is because the gas and water that are passed through cause side loading so that oxygen rifle meeting
Deflect, therefore in the steelmaking process of reality, the mode of this regulation oxygen rifle centering does not play guarantee oxygen rifle
The effect of centering, the normal production of converter can be influenceed.
The offline position rapid and accurate centering method (publication number of patent document converter oxygen gun：CN2226604 a kind of turn) is disclosed
The offline position rapid and accurate centering method of furnace oxygen lance, is specifically included：A, by cross traveling trolley and the lifting being attached on cross traveling trolley
Dolly is moved to blowing position by cross moving track, and center line is connected on lift cart；B, lift cart passes through under fluctuating orbit
The position of lift cart when dropping to normal blowing, the bottom of center line is set to stretch into oxygen rifle mouth, adjustment center line and oxygen rifle mouth
Axial line overlaps；C, lift cart is risen by fluctuating orbit, lift cart is attached on cross traveling trolley, will along cross moving track
Cross traveling trolley is moved to lift cart and waits position；D, oxygen rifle is assembled on lift cart, makes the axis and center line weight of oxygen rifle
Close.This method can improve the efficiency that oxygen rifle is fitted into oxygen rifle mouth, but this method is also in the non-STEELMAKING PRODUCTION of converter
In the case of carry out, by its concrete operations, the axis of oxygen rifle is overlapped with center line, but in the actual STEELMAKING PRODUCTION mistake of converter
Cheng Zhong, due to side loading caused by oxygen rifle connecting pipe water flowing etc., oxygen rifle can be caused to deflect, not realize steel-making life
Oxygen rifle centering during production.
A kind of converter oxygen gun stopping means of patent document and method (publication number CN103205528A), the invention provide a kind of
Converter oxygen gun stopping means and method, including cylinder, limited block, gag lever post, limited block base, cylinder block and limit switch；Gas
Cylinder piston rod is connected with limited block, and limited block is movably connected in the slide opening of " L " shape limited block base top, in limited block base
Medial and lateral are respectively equipped with limit switch, and limit switch is connected with PLC.Using working position limit switch and position limit switch is waited,
Preparation and control condition respectively as the slag that blows, splashes, by the spacing control program of oxygen rifle in PLC, control oxygen rifle and machinery
The interoperation of stopping means, realize that low rifle position splashes slag, the blowing operation of high rifle position.This method, which can make to splash slag rifle position, to be even lower,
Slag effect is splashed in raising, and saving is splashed the slag time, is reduced nitrogen consumption, is improved converter utilization rate；And effectively prevent oxygen rifle from falling, reduce
Spare parts consumption and expense expenditure, but this method is not solved due to side loading caused by oxygen rifle connecting pipe water flowing etc.
The problem of bringing it about deflection.
Board-like oxygen rifle Quick replacing device (publication number CN1041952866A) during patent document is adjusted, including the dolly of oxygen rifle are put down
Platform, trolley platform are loaded with the docking facilities of the fixing device of oxygen rifle and oxygen rifle, oxygen rifle, are set between docking facilities and trolley platform
There is the centralising device of oxygen rifle, centralising device has plate and heading in tune, and the upper and lower ball end of heading is put down with plate in tune and dolly respectively
Platform is flexibly connected, and the push pipe in docking facilities by the weight of oxygen rifle with the metal hose that its flange is connected by sharing the plate in tune
On, because in unbalance stress, the spring that plate can be using steel ball as center of circle compressing corner in tune makes itself to produce inclination plate in tune, so
Using oxygen rifle because forcing plate in tune to produce a certain amount of inclination from power of hanging down caused by deadweight, so as to ensure the perpendicularity of oxygen rifle.
The difficulty that centering adjusts in oxygen rifle installation can be greatly reduced in the device, make the mounting and adjusting of oxygen rifle easy, save manpower and work
When.But this method is that operation is adjusted in the case where converter does not produce, now oxygen rifle is not deposited in addition to self gravitation
In side loading power, therefore in the steelmaking process of reality, this oxygen rifle Quick replacing device cannot guarantee that oxygen rifle in life
Centering effect during production.
A kind of converter oxygen gun of patent document changes control method and system (publication number CN105567901A), the side automatically
Method mainly includes：The first oxygen rifle supplemental characteristic is obtained, detects the use state of the first oxygen rifle in real time；When first oxygen rifle occurs
When abnormal, start oxygen rifle more changing device；Judge whether the position of first oxygen rifle is in center position；If it is not, then adjust institute
The position of the first oxygen rifle is stated, first oxygen rifle is in center position；If so, first oxygen rifle is then lifted to default height
Degree；Traversing first oxygen rifle and the second oxygen rifle, second oxygen rifle is moved to center position, lowers second oxygen rifle；
Wherein, first oxygen rifle is the oxygen rifle in use state, and second oxygen rifle is the oxygen rifle in unused state.The hair
The converter oxygen gun of bright offer changes control method and system automatically, realizes the monitoring and replacing of oxygen rifle, reduces work people
The working strength of member, while more accurately the failure of oxygen rifle is judged, and can in time change and use bad oxygen rifle.But
It is that the system is cumbersome, operates more complicated, though centering situation that can be to oxygen rifle is monitored, improves equipment simultaneously
Cost, Reducing Cost in Enterprises is had a certain impact.
A kind of installation method (publication number CN105755204A) of converter oxygen gun equipment of patent document, the invention provides one
The installation method of kind converter oxygen gun equipment, construction procedure include：First, guide rail is installed；2nd, support meanss are set；3rd, oxygen lance
Group pair；4th, oxygen lance lifts.The present invention is the oxygen rifle lifting reserving hole using low-level platform, sets Simple supporting device,
The offline assembling of oxygen lance is carried out under the support of its device, is formed after one and integrally to be mounted directly to setting position with furnace roof driving
Put.This method can reduce construction risk, improve operating efficiency, ensure that the progress of engineering construction.But set for oxygen rifle
Standby group in the case that oxygen rifle is cooled water pipe side loading power in converter production process, does not ensure that oxygen rifle to step
Centering all the time.Therefore this method is not reaching to the requirement that oxygen rifle centering is also ensured in production process.
Patents documents show that in pneumatic steelmaking production process current oxygen rifle centering mode does not consider actual
In STEELMAKING PRODUCTION operating process, be connected to oxygen rifle the same side pipeline be passed through water and gas caused by side loading, cause oxygen rifle
The deflection of generation.Current so-called centering method is in the case where converter does not produce, by its concrete operations, makes oxygen rifle
Axis overlaps with center line, thus in actual steelmaking process, current oxygen rifle centering mode, not guaranteed converter refining
The real centering of oxygen rifle, can influence the normal production of converter when steel produces.Therefore the hanging position of oxygen rifle, it is necessary to consider in converter
Deflection caused by side loading in actual steelmaking process suffered by oxygen rifle.Regulation of the invention based on current oxygen rifle centering
Operating procedure, the present situation of oxygen rifle centering when not guaranteed actual pneumatic steelmaking produces, but propose to consider actual STEELMAKING PRODUCTION
When oxygen rifle side loading, on the premise of STEELMAKING PRODUCTION is not carried out, oxygen rifle hanging position reserve in advance and center line deflection angle
Degree, and then ensure in actual production in oxygen rifle pair, it is ensured that the normal production of pneumatic steelmaking, reduce the generation of accident.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of method for preventing skidding of wheels of converter oxygen gun, avoid because cooling water pipe with
Oxygen rifle is vertical, and when being passed through cooling water, cooling water can produce certain impact in water inlet pipe and oxygen rifle interface to gun body, produce
One side loading power, produce oxygen rifle and deflect by a small margin, deviate centering center line.
To achieve the above object, the present invention is realized using following technical scheme：
A kind of method for preventing skidding of wheels of converter oxygen gun, when production does not start, deflection angle theta is reserved to hanging oxygen rifleB, offset production
During the deflection angle that occurs to load force of suffered cooling water side, reach the accurate centering of oxygen rifle in production process；Including
Following steps：
First, oxygen rifle load force F is determined
Oxygen rifle load force is determined in cooling water intake side, F values by formula (1)：
In formula (1)：
p1For oxygen rifle water inlet intraductal pressure；
V is cooling water flow；
v1For the flow velocity of water in oxygen rifle water inlet pipe；
v2For the flow velocity of water in oxygen rifle return pipe；
ξ is coefficient of partial resistance；
2nd, the deflection angle that oxygen rifle occurs under load force effect is determined --- the anti-bias reserved deflection of hanging position oxygen rifle
Angle；
Oxygen rifle stress in production work meets that beam stress deflects angle formulaCondition, with above-mentioned oxygen rifle institute
By load force opening relationships formula, you can show that oxygen rifle reserves deflection angle thetaB, θBValue is determined by formula (2)：
In formula (2)：
EI is oxygen rifle material stiffness；
Distances of a between oxygen inlet junction flange and water inlet；
B is water inlet and bottom card distance between plates；
L is a and b sums；
3rd, deflection angle theta is reserved according to oxygen rifleB, the height difference H of oxygen rifle both sides clamp is determined, fixing chuck plate, has oxygen rifle negative
The clamp of the side of load is lower H than the clamp of non-loaded side；H values are determined by formula (3)：
H=Dsin θBFormula (3)
D is oxygen rifle outer tube outer diameter in formula (3).
Compared with prior art, the beneficial effects of the invention are as follows：
When a kind of anti-bias hanging production site of converter oxygen gun provided by the invention does not start, by giving oxygen rifle reserved deflection
Angle θB, it is counteracted the deflection angle occurred due to suffered side loading power in production process, reach in production process
Real centering effect.
Brief description of the drawings
Fig. 1 is the structural representation of oxygen rifle.
Fig. 2 is oxygen rifle stress diagram.
Fig. 3 is that oxygen rifle hangs position view.
In figure：Shower nozzle 1, inner tube 2, middle pipe 3, outer tube 4, ring flange 5, water inlet pipe 6, return pipe 7, upper clamp 8, lower card
Plate 9.
Embodiment
The embodiment of the present invention is further illustrated below in conjunction with the accompanying drawings：
Such as Fig. 1, the return pipe that enters of oxygen rifle is connected on the body of a gun, the water inlet pipe 6 of cooling water upper, return pipe 7 under,
Water inlet pipe 6 is connected with oxygen rifle middle tube 3, and return pipe 7 is connected with oxygen rifle outer tube 4, and oxygen lance is connected with oxygen rifle end.Producing
During work, oxygen rifle is passed through oxygen and cooling water, because oxygen lance center line overlaps with oxygen rifle center line, when being passed through oxygen, and nothing
Side loading power will not make oxygen rifle that left and right vibrations occur.But cooling water pipe is vertical with oxygen rifle, when being passed through cooling water, cooling
Water can produce certain impact in water inlet pipe and oxygen rifle interface to gun body, produce a side loading power, produce oxygen rifle small
Amplitude deflects, and deviates centering center line.
A kind of method for preventing skidding of wheels of converter oxygen gun, when production does not start, deflection angle theta is reserved to hanging oxygen rifleB, offset production
During the deflection angle that occurs to load force of suffered cooling water side, reach the accurate centering of oxygen rifle in production process；Including
Following steps：
First, oxygen rifle load force F size is determined
According to law of conservation of energy, have
In above formula：
p1For oxygen rifle water inlet intraductal pressure, different model oxygen rifle, p1Value is different；
p2Enter in oxygen rifle middle tube the pressure for turning to critical point water for cooling water；
v1For the flow velocity of water in oxygen rifle water inlet pipe；
v2For the flow velocity of water in oxygen rifle return pipe；
hwFor energy loss caused by local resistance；
Z1Enter oxygen rifle porch ground height for cooling water；
Z2Enter for cooling water after oxygen rifle entrance to oxygen gun body shock point position ground height, visual z during calculating1≈
z2。
I.e.：
Energy loss caused by local resistance againWherein：ξ obtains for coefficient of partial resistance：
Oxygen rifle load forceWherein：V is cooling water flow；v2For oxygen rifle return pipe water speed；
2nd, the deflection angle that oxygen rifle occurs under load force effect is determined --- the anti-bias reserved deflection of hanging position oxygen rifle
Angle.
Such as Fig. 2, oxygen rifle stress in production work meets that beam stress deflects angle formulaCondition, it is and above-mentioned
Oxygen rifle pressure opening relationships formula, you can show that oxygen rifle reserves deflection angle：
Formula (2)
In formula (2)：EI is oxygen rifle material stiffness, the oxygen rifle of unlike material, and its value is different；
Distances of a between oxygen inlet junction flange and water inlet；
B is water inlet and bottom card distance between plates；
L is a and b sums；
3rd, such as Fig. 3, determine that oxygen rifle reserves deflection angle thetaBAfterwards, when installing oxygen rifle, the two of clamp 8 and lower clamp 9 in change
The welding and assembling height of side clamp, make the clamp of the loaded side of oxygen rifle connecting line lower H than non-loaded side clamp；Realize institute
It is θ that position is hung when the oxygen rifle needed enters stove with the pre- angle partially of center lineB。
H=Dsin θB
In formula：D is oxygen rifle outer tube outer diameter.
Embodiment
By taking 210t converters as an example, the high 9750mm of 210t Converters, the long 19988mm of oxygen rifle, oxygen supply intensity I=is selected
3.41m3/ (tmin), Theoretical Design oxygen pressure p0=0.784MPa, outlet oxygen pressure is p=0.0981MPa, converter nominal tonnage G
=210t, oxygen inlet speed w=45m/s, oxygen rifle selection Q235, cooling water flow V=410t/h, external water inlet pipe diameter d
=200mm, water supply pressure p1=1MPa, go out water speed v2=6.24m/s, oxygen rifle outer tube outer diameter D take 299mm, wherein：A=
1m, b=2m, l=3m.
First, extension tube attached sectional area is obtained
2nd, each data are brought into reserved deflection angle formula
3rd, oxygen rifle clamp welding position is determined, clamp and the clamp ratio of the lower loaded side of clamp are non-loaded in oxygen rifle
The low H of side clamp；
H=DSin θB=0.299 × Sin1.5 ° of ≈ 7.8mm.
Described above is only the general principle of the present invention, and not the present invention is imposed any restrictions, every right according to the present invention
It carries out equivalent variations and modification, within the category of the art of this patent protection scheme.
Claims (1)
1. a kind of method for preventing skidding of wheels of converter oxygen gun, it is characterised in that when production does not start, deflection angle theta is reserved to hanging oxygen rifleB,
Suffered cooling water side is offset in production process to load force and the deflection angle that occurs, it is accurately right to reach oxygen rifle in production process
In；Comprise the following steps：
First, oxygen rifle load force F is determined
Oxygen rifle load force is determined in cooling water intake side, F values by formula (1)：
In formula (1)：
p1For oxygen rifle water inlet intraductal pressure；
V is cooling water flow；
v1For the flow velocity of water in oxygen rifle water inlet pipe；
v2For the flow velocity of water in oxygen rifle return pipe；
ξ is coefficient of partial resistance；
2nd, the deflection angle for determining that oxygen rifle occurs under load force effect --- anti-bias hanging position oxygen rifle reserves deflection angle；
Oxygen rifle stress in production work meets that beam stress deflects angle formulaCondition, with above-mentioned oxygen rifle suffered by bear
Carry power opening relationships formula, you can show that oxygen rifle reserves deflection angle thetaB, θBValue is determined by formula (2)：
In formula (2)：
EI is oxygen rifle material stiffness；
Distances of a between oxygen inlet junction flange and water inlet；
B is water inlet and bottom card distance between plates；
L is a and b sums；
3rd, deflection angle theta is reserved according to oxygen rifleB, the height difference H of oxygen rifle both sides clamp is determined, fixing chuck plate, makes oxygen rifle loaded
The clamp of side is lower H than the clamp of non-loaded side；H values are determined by formula (3)：
H=Dsin θBFormula (3)
D is oxygen rifle outer tube outer diameter in formula (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711089338.9A CN107641677B (en) | 2017-11-08 | 2017-11-08 | A kind of method for preventing skidding of wheels of converter oxygen gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711089338.9A CN107641677B (en) | 2017-11-08 | 2017-11-08 | A kind of method for preventing skidding of wheels of converter oxygen gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107641677A true CN107641677A (en) | 2018-01-30 |
| CN107641677B CN107641677B (en) | 2019-04-05 |
Family
ID=61125529
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711089338.9A Expired - Fee Related CN107641677B (en) | 2017-11-08 | 2017-11-08 | A kind of method for preventing skidding of wheels of converter oxygen gun |
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| Country | Link |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570804A (en) * | 2008-05-04 | 2009-11-04 | 鞍钢股份有限公司 | Quick-change device for converter oxygen lance |
| CN102181599A (en) * | 2011-05-11 | 2011-09-14 | 中国十九冶集团有限公司 | Method for quickly and accurately centering offset oxygen lance of converter |
| CN102220450A (en) * | 2011-07-22 | 2011-10-19 | 武汉钢铁(集团)公司 | Automatic positioning and controlling method for oxygen lance of converter |
| CN103409591A (en) * | 2013-08-23 | 2013-11-27 | 中国二十二冶集团有限公司 | Method for installing and centering oxygen lance as well as vaporized flue and converter mouth |
| CN104152626A (en) * | 2014-07-23 | 2014-11-19 | 王志敏 | Self-aligning rod-type oxygen lance quick replacing device |
| CN204224635U (en) * | 2014-11-14 | 2015-03-25 | 中冶南方工程技术有限公司 | A kind of cross sliding type sublance device |
| CN104551524A (en) * | 2014-12-31 | 2015-04-29 | 中冶东方工程技术有限公司 | Oxygen lance vertically maintaining method and device corresponding to same |
| CN105567901A (en) * | 2016-02-01 | 2016-05-11 | 莱芜钢铁集团电子有限公司 | Automatic replacement control method and system for oxygen lances of converter |
| CN105907918A (en) * | 2016-07-05 | 2016-08-31 | 中冶赛迪电气技术有限公司 | Control system and method for improving operation safety of converter oxygen lance |
| CN106834589A (en) * | 2015-12-04 | 2017-06-13 | 中冶宝钢技术服务有限公司 | Converter Maintenance method |
-
2017
- 2017-11-08 CN CN201711089338.9A patent/CN107641677B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570804A (en) * | 2008-05-04 | 2009-11-04 | 鞍钢股份有限公司 | Quick-change device for converter oxygen lance |
| CN102181599A (en) * | 2011-05-11 | 2011-09-14 | 中国十九冶集团有限公司 | Method for quickly and accurately centering offset oxygen lance of converter |
| CN102220450A (en) * | 2011-07-22 | 2011-10-19 | 武汉钢铁(集团)公司 | Automatic positioning and controlling method for oxygen lance of converter |
| CN103409591A (en) * | 2013-08-23 | 2013-11-27 | 中国二十二冶集团有限公司 | Method for installing and centering oxygen lance as well as vaporized flue and converter mouth |
| CN104152626A (en) * | 2014-07-23 | 2014-11-19 | 王志敏 | Self-aligning rod-type oxygen lance quick replacing device |
| CN204224635U (en) * | 2014-11-14 | 2015-03-25 | 中冶南方工程技术有限公司 | A kind of cross sliding type sublance device |
| CN104551524A (en) * | 2014-12-31 | 2015-04-29 | 中冶东方工程技术有限公司 | Oxygen lance vertically maintaining method and device corresponding to same |
| CN106834589A (en) * | 2015-12-04 | 2017-06-13 | 中冶宝钢技术服务有限公司 | Converter Maintenance method |
| CN105567901A (en) * | 2016-02-01 | 2016-05-11 | 莱芜钢铁集团电子有限公司 | Automatic replacement control method and system for oxygen lances of converter |
| CN105907918A (en) * | 2016-07-05 | 2016-08-31 | 中冶赛迪电气技术有限公司 | Control system and method for improving operation safety of converter oxygen lance |
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| Publication number | Publication date |
|---|---|
| CN107641677B (en) | 2019-04-05 |
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