CN207646241U - Molten iron desulphurization stirring device - Google Patents
Molten iron desulphurization stirring device Download PDFInfo
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- CN207646241U CN207646241U CN201721519550.XU CN201721519550U CN207646241U CN 207646241 U CN207646241 U CN 207646241U CN 201721519550 U CN201721519550 U CN 201721519550U CN 207646241 U CN207646241 U CN 207646241U
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- molten iron
- stirring
- stirring blade
- conservancy diversion
- hole
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 238000003756 stirring Methods 0.000 title claims abstract description 112
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000002893 slag Substances 0.000 claims description 25
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 241001416181 Axis axis Species 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 abstract description 24
- 230000023556 desulfurization Effects 0.000 abstract description 15
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 230000003009 desulfurizing effect Effects 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- 238000013019 agitation Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003818 cinder Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000282994 Cervidae Species 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- NPEWZDADCAZMNF-UHFFFAOYSA-N gold iron Chemical compound [Fe].[Au] NPEWZDADCAZMNF-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model discloses a kind of molten iron desulphurization stirring devices, including rotary shaft and stirring blade, wherein stirring blade is three pieces or four and is circumferentially uniformly distributed around rotary shaft, open up water conservancy diversion through-hole on the stirring blade, the number of water conservancy diversion through-hole is 3 12 on single stirring blade.The utility model proposes molten iron desulphurization stirring device, desulfurization kinetics condition is excellent, service life is long and stirring low energy consumption.
Description
Technical field
The utility model is related to agitator structure technical field more particularly to a kind of molten iron desulphurization stirring devices.
Background technology
KR（Kambara Reactor）Stirring desulphurization method is that nippon began one's study in 1963, nineteen sixty-five application
In a kind of industrial External Desulfurization Technique From Melten Iron, this sulfur method is with the cross leaf of an outer lining refractories
Structure blender, which immerses, carries out rotational agitation molten iron in hot-metal bottle, so that molten iron is generated vortex, the desulfurizing agent by weighing is by being fed
Device is added to molten iron surface, and is involved in molten iron by vortex, mixes, reacts with high temperature liquid iron, achievees the purpose that desulfurization.The desulfurization
Method inhales cycle mixing by floating on the volume of desulfurizing agent on molten iron level, realizes the circulating contact desulfurization smelting of desulfurizing agent and molten iron
Gold reaction, thus, the desulfurization agent reaction time is abundant, has desulfuration efficiency high, and sorbent consumption is few, and the activity duration is short, gold
Belong to and consume low advantage, is the mechanical agitation metallurgical technology being uniquely widely applied both at home and abroad at present.
Report that KR stirring desulphurization flow regimes are divided into stirring according to limited KR stirring desulphurizations flow regime research both at home and abroad
Free vortex flow area other than center forced vortex area and the area, forced vortex area is due to the opposite fortune between not having liquid infinitesimal
It is dynamic, it is poor mixing area；And free vortex flow area causes the relative motion between liquid infinitesimal due to shuttling movement, plays mixed
Close the effect of dispersion.At the high stirring Re of actual production, the ratio between forced vortex area radius and agitator paddle radius are approximately
0.7, the effective mixing area of paddle is only 30%, thus, molten iron KR stirring desulphurizations transmission kinetic mechanism is local volume persorption
It closes, radial shear dispersion.Simultaneously as the presence in forced vortex area, is involved in the desulfurizing agent of molten iron（Slag）At blender center
Leaf angle is built up, and routine KR stirring blade angles（90°）It is smaller, cause the blender region refractory material working lining surface
Dry slag not only influences blender weight, stirring resistance, but also the stirring for influencing desulfurizing agent volume is inhaled and circulates state, dislikes
Change stirring desulphurization dynamic conditions, stirring power consumption and desulfurization technical-economic index, simultaneously as quaterfoil angle space is narrow
Small, scarfing cinder operating difficulties, often scarfing cinder is not thorough, and leaf angle portion dry slag is caused constantly to deposit, refractory material working lining scarfing cinder
Mechanical damage is aggravated, and the technical-economic index of molten iron stirring desulphurization is further degrading.It can be seen that how to extend stirring freely
Vortex, the scale for reducing forced vortex area, be it is further improve stirring desulphurization dynamic conditions, reduce stirring blade dry slag,
Improve the effective way of blender service life.
How KR stirring desulphurization dynamic conditions is effectively improved, and domestic and foreign scholars have carried out series in terms of agitator structure
Research work, such as：Document " improvement (translating selected passages) of Desulphurization of Pig Iron, Taiyuan Iron and Steel Co. translation, 1994, (1), and 20-25. " reports, Japan
Sumitomo Metal Industries deer island iron takes the lead in having studied the nineties in last century agitator paddle diameter and stirring blade shape to desulfurization
The influence of dynamic conditions, it is proposed that the expanding dynamics corrective measure with the outer convex mixing surface of blade of agitator paddle,
In, special-shaped stirring blade is popularization and application due to shape remains difficult in actual use, and agitator paddle is expanding at home and abroad
Some iron and steel enterprises are applied, but because molten iron level lifting height, stirring intensity are big with vibration, affect the molten iron of hot-metal bottle
Efficient loading amount, blender service life, and crisis is kept the safety in production due to mixing plant vibration is big.In terms of agitator structure,
Chinese patent " a kind of stirrer for desulphurization of molten iron "（Publication number CN101603111A）Number of patent application 200910060770.4 is public
It is the three leaf blenders on inclined-plane of leaning forward with back iron face to have opened a kind of paddle and met untouchable, is leaned forward structure by three blades, enhancing
Stirring volume with volume inhales circular flow between being emptied, and reaching improves desulfurization kinetics condition purpose, and the angle between blade is made to increase
To 120 °, dry slag speed between blade is reduced, not only facilitates the cleaning of dry slag, while reducing dry slag to blade stirring blade
The influence of effective active area improves the stability of stirring intensity.Chinese patent " molten iron desulphurization stirring device "（Publication number
CN201406443Y）It for the convex-shaped arc surface that leans forward, back iron face is vertical plane or rake, axial direction to disclose a kind of paddle and meet untouchable
Vertical cross-section is three leaf blenders of the trapezoidal faces radially inside contracted, is designed, is further increased by the polymorphic structure of paddle
Angle between paddle enhances the improvement of the shearing dispersibility and stirring desulphurization dynamic conditions of blender.
It can be seen that the improvement of above-mentioned agitator structure, the mixing that free vortex flow area is mainly stirred by reinforcing disperses,
Achieve the effect that improve molten iron mechanical agitation desulfuration dynamic conditions, but above-mentioned corrective measure cannot contain mixing center forced vortex
The formation for flowing area, can not reduce the volume size in forced vortex area, constrain molten iron mechanical agitation desulfuration dynamic conditions
Significantly improve effect.For this purpose, patent " mechanical agitation desulfuration method for hot metal "（Publication number CN101492753A）Disclose a kind of iron
Water pot bias stirring desulphurization method deviates the stirring at hot-metal bottle center by blender, causes to stir swirl center deviation stirring
Axle center, the formation in mixing center forced vortex area when having contained conventional KR stirring desulphurizations make the desulfurizing agent deviation that whirlpool sucks stir
It mixes axle center asymmetry and is involved in cycle, and the desulfurizing agent the being involved in mixing in molten iron point is realized by the impact of stirring blade
It dissipates, to effectively improve molten iron mechanical agitation desulfuration dynamic conditions, although achieving good work in actual production
Industry test effect, but larger eccentric thrust is stirred due to eccentric, the abrasion of hot-metal ladle and carriage brake system is promoted, is increased
The maintenance workers quality of hot-metal ladle and carriage brings difficulty to practical popularization and application.Patent " jet-propelled stirring used for molten iron mechanical stirring desulfuration
Device "（Publication number CN102154533A）A kind of jet-propelled blender used for molten iron mechanical stirring desulfuration is disclosed, by paddle
Between jet channel is set, cooling gas is injected to mixing center whirlpool from jet spout during blender use, promote
Make the relative motion between desulfurizing agent and molten iron in mixing center forced vortex area, realizes desulfurization in mixing center forced vortex area
Mixing dispersion of the agent in molten iron, improves the region desulphurization kinetics condition.It is also possible between containing adjacent paddle
The delay of desulfurization slag bonds, and mitigates blender dry slag cleaning and maintenance amount.But since agitator structure is complex, processing and fabricating is difficult
Spend it is larger, have not seen at present commercial Application report.
Utility model content
That the main purpose of the utility model is to provide a kind of desulfurization kinetics conditions is excellent, service life is long and stirring
The molten iron desulphurization stirring device that low energy consumption.
To achieve the above object, the utility model provides a kind of molten iron desulphurization stirring device, including rotary shaft and stirring blade,
Wherein,
The stirring blade is three pieces or four and is circumferentially uniformly distributed around rotary shaft, and water conservancy diversion is opened up on the stirring blade
Through-hole, the number of water conservancy diversion through-hole is 3-12 on single stirring blade.
Preferably, the madial wall of the water conservancy diversion through-hole is equipped with water base coating against binding slags layer.
Preferably, the lateral surface of the stirring blade is that from bottom to top diameter leans outward the inclined-plane at the angles γ, and γ is 0~8 °.
Preferably, the molten iron face of meeting of the stirring blade is the inclined-plane at the angles α of from bottom to top leaning forward clockwise, paddle
The back iron water surface of piece is the inclined-plane at the angles β of from bottom to top leaning forward clockwise, and α is 0~8 °, β >=α.
Preferably, the diameter of the water conservancy diversion through-hole or maximal side are a, when the average diameter of stirring blade is b, then a and b
Meet：0.05b≤a≤0.1b.
Preferably, the geometric center of the water conservancy diversion through-hole to rotating shaft axis vertical range d >=0.25b.
Preferably, the water conservancy diversion through-hole is round, ellipse or rectangular configuration.
The utility model proposes molten iron desulphurization stirring device, suitably led by opening up size and number on stirring blade
Recirculation hole, molten iron forms high-speed jet in whipping process along water conservancy diversion flow therethrough, and at stirring blade back between promoting blade,
Velocity gradient increases jet stream will make fluid to the shear action of molten iron around, and forms numerous vortex, interferes mixing center
The rigid rotation movement in forced vortex area, the formation and expansion in limitation mixing center forced vortex area, to reduce mixing center
Forced vortex area forms volume, the violent free vortex flow area volume of extension fluid infinitesimal relative motion, and containment mixing center is forced
Adverse effect of the vortex to molten iron stirring desulphurization dynamic conditions；In addition, reduction and the fluid in mixing center forced vortex area
The enhancing of the relative motion of infinitesimal can limit the delay bonding of desulfurization slag between adjacent paddle, improve the effective of stirring blade
Active area, the blender mechanical damage for alleviating blender dry slag cleaning and maintenance amount and thus bringing.Simultaneously as opening up
Water conservancy diversion through-hole enhances the less turbulence of molten bath fluid, accelerates between molten bath liquid and liquid and between liquid and desulfurizing agent
Relative motion, also will further improve and be stirred dispersion and reaction effect.Molten iron face and back iron are met by stirring blade
The water surface is the ramp structure at from bottom to top lean forward the respectively clockwise angles α and the angles β, improves the stirring volume suction of stirring blade by force
Degree further promotes desulfurizing agent to be rolled up along baffle and inhales downlink, improves reacting dynamics condition.By in water conservancy diversion through-hole inner homogeneous
Water base coating against binding slags are brushed, dry slag and area change of the water conservancy diversion through-hole during stirring use is prevented, ensures above-mentioned use
Effect.By the comprehensive function of above-mentioned measure, reach the dynamic conditions for significantly improving molten iron mechanical agitation desulfuration, stirring blade
Between few, the simple in structure and easy to make purpose of dry slag.
Description of the drawings
Fig. 1 is the main structure diagram of the utility model molten iron desulphurization stirring device；
Fig. 2 is the overlooking structure diagram of the utility model molten iron desulphurization stirring device.
In figure, 1- rotary shafts, 2- stirring blades, 3- water conservancy diversion through-holes.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific implementation mode
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and is not instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the utility model.In addition, term " first ", " second " etc. are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.
Referring to Figures 1 and 2, a kind of molten iron desulphurization stirring device, including rotary shaft 1 and stirring blade 2, wherein
Stirring blade 2 is three pieces or four and is uniformly distributed around rotary shaft 1 is circumferential, and water conservancy diversion through-hole is opened up on stirring blade 2
3, the number of water conservancy diversion through-hole 3 is 3-12 on single stirring blade 2.
Further, the madial wall of water conservancy diversion through-hole 3 is equipped with water base coating against binding slags layer.By inside water conservancy diversion through-hole 3
Water base coating against binding slags are uniformly brushed, prevent dry slag and area change of the water conservancy diversion through-hole 3 during stirring use, ensure that makes
Use effect.
Specifically, the lateral surface of stirring blade 2 is that from bottom to top diameter leans outward the inclined-plane at the angles γ, and γ is 0~8 °.Paddle
Piece 2 meets molten iron face as the inclined-plane at the angles α of from bottom to top leaning forward clockwise, and the back iron water surface of stirring blade 2 is square clockwise
To the inclined-plane at the angles β of from bottom to top leaning forward, and α is 0~8 °, β >=α.The diameter or maximal side of water conservancy diversion through-hole 3 are a, stirring blade
When 2 average diameter is b, then a and b meets：0.05b≤a≤0.1b.The geometric center of water conservancy diversion through-hole 3 is to 1 axis of rotary shaft
Vertical range d >=0.25b.
Water conservancy diversion through-hole 3 is that round, ellipse or rectangular configuration, the utility model are not construed as limiting this.Multiple water conservancy diversion through-holes 3
Uniformly it is opened on stirring blade 2.
In order to ensure the implementation of abovementioned technology, the composition and anchoring piece arrangement of blender rotary shaft are with reference to China
Patent " a kind of molten iron desulphurization stirring device "（ZL200910060770.4）.
The utility model provides three specific embodiments herein.
Embodiment 1：
Molten iron desulphurization stirring device is made of rotary shaft 1, stirring blade 2 and water conservancy diversion through-hole 3.Wherein, stirring blade 2 is three
Piece is circumferentially uniformly distributed around rotary shaft 1；Water conservancy diversion through-hole 3 is uniformly opened up on stirring blade 2.2 lateral surface of stirring blade be by lower and
Upper diameter leans outward the inclined-plane at the angles γ, and γ is 6 °.The molten iron face of meeting of stirring blade 2 is the angles α of from bottom to top leaning forward clockwise
Inclined-plane, the back iron water surface is the inclined-plane at the angles β of from bottom to top leaning forward clockwise, and α is 6 °, and β is 8 °.Water conservancy diversion through-hole 3 is circle
Structure is uniformly opened on stirring blade 2.3 a diameter of a of water conservancy diversion through-hole, stirring blade average diameter are b, a=0.1b.Individually stir
The number for mixing water conservancy diversion through-hole 3 on blade 2 is 6.Close to 3 center of circle of rotary shaft 1 water conservancy diversion through-hole to 1 axis vertical range d of rotary shaft=
0.25b, close to 3 center of circle of blade tip water conservancy diversion through-hole to 1 axis vertical range d=0.75b of rotary shaft.On blade height direction,
Water conservancy diversion through-hole 3 is evenly arranged according to the interval principle of correspondence.Water conservancy diversion through-hole 3 inner homogeneous brushing, one layer of water base coating against binding slags.
Embodiment 2：
Embodiment 2 is four difference lies in stirring blade 2 with embodiment 1, and 3 numbers of water conservancy diversion through-hole are 9.
Embodiment 3：
Embodiment 3 is ellipse difference lies in 3 shape of water conservancy diversion through-hole with embodiment 1.
The utility model proposes molten iron desulphurization stirring device, it is suitable by opening up size and number on stirring blade 2
Water conservancy diversion through-hole 3, molten iron flows in whipping process along water conservancy diversion through-hole 3 between promoting blade, and forms high speed at stirring blade back
Jet stream, velocity gradient increases jet stream will make fluid to the shear action of molten iron around, and forms numerous vortex, interference stirring
The rigid rotation movement in center forced vortex area, the formation and expansion in limitation mixing center forced vortex area, to reduce stirring
Center forced vortex area forms volume, and the violent free vortex flow area volume of extension fluid infinitesimal relative motion contains mixing center
Adverse effect of the forced vortex area to molten iron stirring desulphurization dynamic conditions；In addition, the reduction in mixing center forced vortex area and
The enhancing of the relative motion of fluid infinitesimal can limit the delay bonding of desulfurization slag between adjacent paddle, improve stirring blade
Effective active area, the blender mechanical damage for alleviating blender dry slag cleaning and maintenance amount and thus bringing.Simultaneously as
The less turbulence that water conservancy diversion through-hole 3 enhances molten bath fluid is opened up, is accelerated between molten bath liquid and liquid and liquid and desulfurization
Relative motion between agent also will further improve and be stirred dispersion and reaction effect.Molten iron face is met by stirring blade 2
It is the ramp structure at from bottom to top lean forward the respectively clockwise angles α and the angles β with the back iron water surface, improves stirring for stirring blade 2
It mixes volume and inhales intensity, further promote desulfurizing agent to be rolled up along baffle and inhale downlink, improve reacting dynamics condition.By in water conservancy diversion through-hole
The 3 water base coating against binding slags of inner homogeneous brushing prevent dry slag and area change of the water conservancy diversion through-hole 3 during stirring use, protect
Demonstrate,prove above-mentioned using effect.By the comprehensive function of above-mentioned measure, reach the dynamics item for significantly improving molten iron mechanical agitation desulfuration
Few, the simple in structure and easy to make purpose of 2 part, stirring blade dry slags.
It these are only the preferred embodiment of the utility model, it does not limit the scope of the patent of the present invention, every
Equivalent structure transformation made based on the specification and figures of the utility model, it is relevant to be applied directly or indirectly in other
Technical field is equally included in the patent within the scope of the utility model.
Claims (7)
1. a kind of molten iron desulphurization stirring device, which is characterized in that including rotary shaft and stirring blade, wherein
The stirring blade is three pieces or four and is circumferentially uniformly distributed around rotary shaft, and it is logical that water conservancy diversion is opened up on the stirring blade
Hole, the number of water conservancy diversion through-hole is 3-12 on single stirring blade.
2. molten iron desulphurization stirring device as described in claim 1, which is characterized in that the madial wall of the water conservancy diversion through-hole is equipped with water
Base coating against binding slags layer.
3. molten iron desulphurization stirring device as described in claim 1, which is characterized in that the lateral surface of the stirring blade be by lower and
Upper diameter leans outward the inclined-plane at the angles γ, and γ is 0~8 °.
4. molten iron desulphurization stirring device as described in claim 1, which is characterized in that the molten iron face of meeting of the stirring blade is up time
From bottom to top lean forward the inclined-plane at the angles α in needle direction, and the back iron water surface of stirring blade is the oblique of the angles β that from bottom to top lean forward clockwise
Face, and α is 0~8 °, β >=α.
5. molten iron desulphurization stirring device as described in claim 1, which is characterized in that the diameter or maximal side of the water conservancy diversion through-hole
For a, when the average diameter of stirring blade is b, then a and b meets：0.05b≤a≤0.1b.
6. molten iron desulphurization stirring device as claimed in claim 5, which is characterized in that the geometric center of the water conservancy diversion through-hole to rotation
Vertical range d >=0.25b of axis axis.
7. the molten iron desulphurization stirring device as described in any one of claim 1 to 6, which is characterized in that the water conservancy diversion through-hole is
Round, ellipse or rectangular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721519550.XU CN207646241U (en) | 2017-11-15 | 2017-11-15 | Molten iron desulphurization stirring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721519550.XU CN207646241U (en) | 2017-11-15 | 2017-11-15 | Molten iron desulphurization stirring device |
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| CN207646241U true CN207646241U (en) | 2018-07-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114058765A (en) * | 2021-11-18 | 2022-02-18 | 马鞍山钢铁股份有限公司 | Stirrer for KR mechanical stirring desulfurization of molten iron before converter steelmaking |
-
2017
- 2017-11-15 CN CN201721519550.XU patent/CN207646241U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114058765A (en) * | 2021-11-18 | 2022-02-18 | 马鞍山钢铁股份有限公司 | Stirrer for KR mechanical stirring desulfurization of molten iron before converter steelmaking |
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