CN205341914U - Steel ladle that can blow in turn in bottom - Google Patents
Steel ladle that can blow in turn in bottom Download PDFInfo
- Publication number
- CN205341914U CN205341914U CN201620036810.7U CN201620036810U CN205341914U CN 205341914 U CN205341914 U CN 205341914U CN 201620036810 U CN201620036810 U CN 201620036810U CN 205341914 U CN205341914 U CN 205341914U
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- ladle
- blow pipe
- reversal valve
- gas blow
- steel ladle
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Abstract
The utility model provides a ladle that can blow in turn in the bottom, includes and ladle, slide gate nozzle is provided with the air brick in the bottom of ladle, still include gas blow pipe a, gas blow pipe b, the house steward that blows, switching -over valve, motor dynamic transmission, steel ladle bottom's an air brick is connected to gas blow pipe a's one end, and the switching -over valve is connected to the other end, gas blow pipe b's one end connect steel ladle bottom another locate the air brick, the switching -over valve is connected to the other end, the house steward that blows also connects the switching -over valve, motor dynamic transmission's power output shaft and the inside case axle fixed connection of switching -over valve. The beneficial effects of the utility model are that: at the refined in -process of ladle bottom blowing argon gas, two positions can following steel ladle bottom replace the air input of blowing and controlling the argon gas to change chance, quick mixing molten steel composition and the temperature of growing up in the mobile circulation orientation of the concise in -process molten steel of ladle bottom blowing argon, the collision of increase inclusion in turn, improve the quality and the production efficiency of refinement molten steel effectively.
Description
Technical field
This utility model relates to the process for making in a kind of ferrous metallurgical industry, particularly relates to a kind of bottom and can replace the ladle of blowing argon gas.
Background technology
Ladle, as the intermediate receptacle between steel making working procedure and cast operation, is indispensable equipment in the production of steel making working procedure.It is not only the container of transport and pour steel, is also the refining furnace of external refining simultaneously.
In Ferrous Metallurgy technique, air blowing process usually builds one or a few blocks air brick at cast ladle or brick ladle bottom, is blown into gas by air brick and makes the molten steel in molten bath move, thus playing the effect of non-uniform components and equilibrium temperature after tapping.Additionally, due to adding molten steel kinetic energy, the dynamic conditions in molten bath is made to become excellent, various reaction can being occurred fully, and the power that various impurity can have abundance can be allowed to enable to be eliminated, this method achieves good effect.Because technological progress makes argon increasingly be readily obtained, cost declines and makes Argon stirring become more and more feasible.Argon is a kind of noble gas, is blown into the argon in molten steel and had both been not involved in chemical reaction, does not also within it dissolve.Argon enters molten steel by air brick, forms substantial amounts of minute bubbles, promotes molten steel to move up and down, stir molten steel, promote molten steel component and homogeneous temperature in Argon Bubble floating-upward process.Tiny scattered Argon Bubble surface has an opportunity to contact with the non-metallic inclusion in molten steel, field trash is adsorbed by Argon Bubble and carries emersion molten steel face and get rid of, and when Argon Bubble drives molten steel flow, field trash in molten steel can with molten steel flow, being refined slag absorb at steel, slag interface, this is also the major way of inclusion removal in steel ladle bottom argon blowing refine.
Therefore, for improving quality of molten steel, optimizing steel ladle bottom argon blowing refining effect, it is its basis that bottom argon blowing technology is optimized.Current most domestic ladle adopts single hole Argon or diplopore Argon, but still suffers from some shortcomings, and this patent is exactly put forward under this background.
Patent publication No.: CN105112610A, the present invention relates to the argon blowing method at bottom of a kind of Quick uniform molten steel.The present invention adopts the mode of the weak BOTTOM ARGON BLOWING of diplopore the last one one, and when adding after alloy in ladle, ladle bottom is blown, and wherein a hole weak is blown, a hole is blown by force.The position of Argon diplopore is positioned at 0.64-0.7R place, and R is ladle bottom surface internal diameter, and angle is 120-180 °.This method can make molten steel ladle circulate, it is possible to ratio traditional diplopore same traffic blowing method more uniform molten steel temperature and composition, reduces dead space volume in ladle.But this invention is in ladle bottom blowing argon process, and holes air-blowing quantity is fixing, a hole is fixed and is blown by force, and weak blowing is fixed in a hole, it is impossible to changing molten steel flow loop direction, stirring capacity is poor, and non-uniform components temperature effect is poor, and inclusion removal rate is low.
Patent publication No.: CN104073600A, stifled air supply system and method are blown in a kind of ladle bottom blowing air brick supercharging.This system includes pneumatic press, cooler, high pressure tank, bottom blowing gas holder, high-pressure air feed pipeline, bottom blowing gas pipeline, gas automatic circuit closing device, check-valves, bottom-blown air brick, steam line, cuts valve soon.This system has two-way steam line, normally blows in a road, and a road prevents air brick from blowing stifled supply air line.The advantage of this device is can effectively to improve ladle bottom blowing to blow out rate, thus improving the service life of air brick.But, first this system one road pipeline is fixing normal blows, and a road pipeline is fixing prevents pipeline blockage, therefore can be only formed fixing molten steel flow loop direction inside ladle, and stirring capacity is weak so this device time of needing blowing argon gas is longer.Secondly, this system structure is more complicated, easy break-down.
Patent publication No.: CN203235962U, the utility model discloses the rotary ladle in a kind of bottom blowing position, this ladle includes: air brick, fixing device, tumbler ring, ladle bottom body of heater, gear, rotation axle, tapping hole, motor, disk and screw thread, tumbler ring.This utility model drives annulus to rotate the change realizing blow-out position by motor, meets the demand that refine different times blow-out position changes.But, first this utility model molten steel is one-way circulation, mixing time ability, and the chance that field trash collision is grown up is few, and gassing time is longer.Secondly this utility model is higher to equipment requirements, and structure is complicated, and later maintenance cost is high.
No matter existing steel ladle bottom argon blowing device, be that single hole is blown or diplopore is blown, in steel ladle bottom argon blowing refining process, all can not change molten steel flow loop direction.Stirring capacity is more weak, and non-uniform components and temperature effect are poor, and field trash collides weak effect of growing up.
Summary of the invention
The purpose of this utility model is to provide the steel ladle can alternately blown in a kind of bottom, in the process of ladle bottom blowing argon refine, air blowing can be replaced from the two of ladle bottom positions, control the air inflow of argon simultaneously, and then improve quality and the production efficiency of refining liquid steel.
For achieving the above object, this utility model realizes by the following technical solutions:
The steel ladle can alternately blown in a kind of bottom, including ladle, slide gate nozzle, is provided with air brick in the bottom of ladle；Also including gas blow pipe a, gas blow pipe b, air blowing house steward, reversal valve, motor power transmission device, one end of described gas blow pipe a connects place's air brick of ladle bottom, and the other end connects reversal valve；One end of described gas blow pipe b connects another place's air brick of ladle bottom, and the other end connects reversal valve；Described air blowing house steward also connects reversal valve；The power output shaft of described motor power transmission device is fixing with the poppet shaft within reversal valve to be connected.
Described reversal valve is provided with three pores, is connected with gas blow pipe a, gas blow pipe b, air blowing house steward respectively；It is internally provided with the spool being connected by axle with reversal valve shell at reversal valve.
Described spool is provided with steam vent.
Described motor power transmission device includes motor, reductor, universal driving shaft, and motor is connected with reductor by universal driving shaft, and reductor is connected with the poppet shaft within reversal valve by universal driving shaft.
Compared with prior art, the beneficial effects of the utility model are:
The steel ladle can alternately blown in a kind of bottom, in the process of ladle bottom blowing argon refine, the air inflow blowing and controlling argon can be replaced from the two of ladle bottom positions, thus alternately changing molten steel flow loop direction, increase field trash in steel ladle bottom argon blowing refining process to collide the chance grown up, quick mixing molten steel component and temperature, it is effectively improved quality and the production efficiency of refining liquid steel.
Accompanying drawing explanation
Fig. 1 is the structural representation of the steel ladle can alternately blown in a kind of bottom of this utility model；
Fig. 2 is the generalized section of reversal valve in this utility model；
Fig. 3 is the connection diagram of reversal valve and motor power transmission device in this utility model；
In figure: streamline 17-ladle when streamline 16-pipe b blows when 1-molten steel 2-slag 3-gas blow pipe a4-air brick 5-air blowing house steward 6-reversal valve 7-gas blow pipe b8-air brick 9-slide gate nozzle 10-steam vent 11-spool 12-reductor 13-universal driving shaft 14-motor 15-pipe a blows
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described in detail, it should be noted that enforcement of the present utility model is not limited to following embodiment.
As shown in Figure 1-Figure 3, the steel ladle can alternately blown in a kind of bottom, including ladle 17, slide gate nozzle 9, slide gate nozzle 9 is arranged in the containment wall of ladle 17, and the bottom of ladle 17 is provided with air brick 4；Also including gas blow pipe a3, gas blow pipe b7, air blowing house steward 5, reversal valve 6, motor power transmission device, one end of described gas blow pipe a3 connects place's air brick 4 of ladle bottom, and the other end connects reversal valve 6；One end of described gas blow pipe b7 connects another place's air brick 8 of ladle bottom, and the other end connects reversal valve 6；Described air blowing house steward 5 also connects reversal valve 6；The power output shaft of described motor power transmission device is fixing with the poppet shaft within reversal valve to be connected.
As in figure 2 it is shown, be provided with three pores on described reversal valve 6, it is connected with gas blow pipe a3, gas blow pipe b7, air blowing house steward 5 respectively；It is internally provided with the spool 11 being connected by axle with reversal valve shell at reversal valve 6.
Spool 11 is fixing with poppet shaft to be connected, and poppet shaft is connected with reversal valve shell by sliding bearing.Poppet shaft stretches out that one end of reversal valve 6 is fixing with universal driving shaft 13 to be connected.
Slipper seal measure is taked, to prevent gas side from leaking between spool 11 and reversal valve inwall.For preventing spool 11 moment in the process rotated from blocking the pore on reversal valve 6, the end cross-sectional of spool 11 is less than pore.
Described spool 11 is provided with steam vent 10.Steam vent 10 diameter is the 1/10～1/5 of gas blow pipe diameter.When the air brick of a side air blowing tube Lu Suotong blocks, it is possible to play and lead the effect letting out intraductal atmospheric pressure, it is prevented that because intraductal atmospheric pressure is excessive and accidents caused.Owing to steam vent 10 diameter is only small relative to gas blow pipe diameter, so when gas circuit is unimpeded, the partial gas flowed away from steam vent 10 can't affect the overall trend of gas.
As shown in Figure 3, described motor power transmission device includes motor 14, reductor 12, universal driving shaft 13, and motor 14 is connected with reductor 12 by universal driving shaft 13, and reductor 12 is connected with the poppet shaft within reversal valve 6 by universal driving shaft 13.
Operation principle of the present utility model is as follows:
Seeing Fig. 2, in ladle bottom blowing argon refining process, be blown into, to air blowing house steward 5, the argon that tolerance is 200L/min～500L/min, when spool 11 is horizontal, gas can be blown into argon from gas blow pipe a3 and gas blow pipe b7 simultaneously in ladle 17.When spool 11 turn 90 degrees to the process of vertical position from horizontal level dextrorotation, gas is mainly carried argon by gas blow pipe a3 in ladle 17, and a small amount of gas is carried argon by gas blow pipe b7 by steam vent 10 in ladle 17.
It turn 90 degrees in the process of horizontal level when spool 11 is continued dextrorotation by vertical position, gas carries gas mainly through gas blow pipe b7 in ladle 17, a small amount of gas is carried argon by gas blow pipe a3 by steam vent 10 in molten steel 1, in this process, molten steel 1 forms reverse circulating, and increases stirring intensity (see Fig. 1).
When spool 11 is rotated to vertical position by horizontal level successively, when being rotated to horizontal level by vertical position again, in ladle 17, molten steel 1 flow circuit direction alternately there occurs transformation, it is alternatively formed reverse molten steel to circulate, what make that molten steel 1 stirs is more thorough, shorten molten steel 1 mixing time, refine can be quickly finished.Spool 11 from horizontal level rotate a circle namely 360 degree time, molten steel 1 varying cyclically biquadratic to, motor 14 rotating speed is every 1～4 minute cycle, namely every 1/4～1 minute, changes a molten steel flow loop direction.
Claims (4)
1. the steel ladle that can alternately blow in bottom, including steel ladle, slide gate nozzle, is provided with air brick in the bottom of steel ladle；It is characterized in that, also include gas blow pipe a, gas blow pipe b, air blowing house steward, reversal valve, motor power transmission device, one end of described gas blow pipe a connects the place's air brick bottom steel ladle, and the other end connects reversal valve；One end of described gas blow pipe b connects another place's air brick bottom steel ladle, and the other end connects reversal valve；Described air blowing house steward also connects reversal valve；The power output shaft of described motor power transmission device is fixing with the poppet shaft within reversal valve to be connected.
2. the steel ladle that can alternately blow in a kind of bottom according to claim 1, it is characterised in that be provided with three pores on described reversal valve, is connected with gas blow pipe a, gas blow pipe b, air blowing house steward respectively；It is internally provided with the spool being connected by axle with reversal valve shell at reversal valve.
3. the steel ladle that can alternately blow in a kind of bottom according to claim 2, it is characterised in that be provided with steam vent on described spool.
4. the steel ladle that can alternately blow in a kind of bottom according to claim 1, it is characterized in that, described motor power transmission device includes motor, reductor, universal driving shaft, and motor is connected with reductor by universal driving shaft, and reductor is connected with the poppet shaft within reversal valve by universal driving shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620036810.7U CN205341914U (en) | 2016-01-15 | 2016-01-15 | Steel ladle that can blow in turn in bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620036810.7U CN205341914U (en) | 2016-01-15 | 2016-01-15 | Steel ladle that can blow in turn in bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205341914U true CN205341914U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620036810.7U Expired - Fee Related CN205341914U (en) | 2016-01-15 | 2016-01-15 | Steel ladle that can blow in turn in bottom |
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| CN (1) | CN205341914U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018188684A (en) * | 2017-04-28 | 2018-11-29 | 新日鐵住金株式会社 | Ladle refining method of molten steel |
| CN109652613A (en) * | 2019-01-17 | 2019-04-19 | 武汉科技大学 | Four holes for quickly mixing molten steel recycle argon blowing method at bottom |
| CN113512626A (en) * | 2021-04-23 | 2021-10-19 | 东北大学 | Ladle multipoint pulsation type bottom blowing intelligent refining device and method |
| CN114260421A (en) * | 2021-12-27 | 2022-04-01 | 北京科技大学 | Take mould device of mixing function |
-
2016
- 2016-01-15 CN CN201620036810.7U patent/CN205341914U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018188684A (en) * | 2017-04-28 | 2018-11-29 | 新日鐵住金株式会社 | Ladle refining method of molten steel |
| CN109652613A (en) * | 2019-01-17 | 2019-04-19 | 武汉科技大学 | Four holes for quickly mixing molten steel recycle argon blowing method at bottom |
| CN113512626A (en) * | 2021-04-23 | 2021-10-19 | 东北大学 | Ladle multipoint pulsation type bottom blowing intelligent refining device and method |
| CN114260421A (en) * | 2021-12-27 | 2022-04-01 | 北京科技大学 | Take mould device of mixing function |
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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: 20160629 Termination date: 20170115 |