CN112011663A - Composite molten iron desulphurization stirring head with blade cooling function - Google Patents
Composite molten iron desulphurization stirring head with blade cooling function Download PDFInfo
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- CN112011663A CN112011663A CN202010895226.8A CN202010895226A CN112011663A CN 112011663 A CN112011663 A CN 112011663A CN 202010895226 A CN202010895226 A CN 202010895226A CN 112011663 A CN112011663 A CN 112011663A
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- upright post
- stirring blade
- stirring
- wall
- molten iron
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- 238000003756 stirring Methods 0.000 title claims abstract description 106
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000001816 cooling Methods 0.000 title claims abstract description 58
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 40
- 239000002131 composite material Substances 0.000 title claims abstract description 7
- 239000011819 refractory material Substances 0.000 claims abstract description 19
- 238000009826 distribution Methods 0.000 claims abstract description 15
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 14
- 230000023556 desulfurization Effects 0.000 claims abstract description 14
- 238000007664 blowing Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010907 mechanical stirring Methods 0.000 description 11
- 239000002826 coolant Substances 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000003009 desulfurizing effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/402—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/45—Mixing in metallurgical processes of ferrous or non-ferrous materials
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention relates to a composite method molten iron desulphurization stirring head with a blade cooling function, which comprises a tubular upright post (6) and a stirring blade core plate (10), wherein the stirring blade core plate (10) is hollow, the upper end of the stirring blade core plate is provided with a flow guide hole (18), a jetting pipe (7) and a cooling pipe (8) penetrate through the upright post (6), the upper port of the cooling pipe (8) is provided with a supporting block (17), the lower port of the upright post (6) is provided with a desulfurizer distribution block (11), the lower side wall of the cooling pipe (8) is provided with a through hole (13), and the lower inner wall of the upright post (6) is provided with a check block (15) and; the outer walls of the upright posts (6) and the stirring blade core plates (10) are provided with refractory materials (9), and the interior of the refractory materials (9) is provided with blowing holes (12). And cooling media are introduced into the cooling pipe (8) to cool the upright post (6) and the stirring blade core plate (10), so that the service life of the device is prolonged. Solves the problems of large pollution and high and easily damaged working temperature of the existing desulfurization equipment.
Description
Technical Field
The invention relates to a composite molten iron desulphurization stirring head with a blade cooling function, and belongs to the technical field of desulphurization devices in the metallurgical industry.
Background
At present, the mechanical stirring method commonly used in the metallurgical industry is to directly insert a mechanical stirring head into molten iron, and the desulfurizing agent and the molten iron are uniformly mixed and reacted through the mechanical rotation of a blade of the stirring head in the molten iron. Because the temperature of molten iron is very high, generally about 1300 ℃, and the maximum service temperature of steel for the mechanical stirring head is generally 500-600 ℃, in order to realize mechanical stirring, the industry practice is to lay refractory materials on the outer surfaces of the core plate of the steel blade and the upright post, and to introduce a cooling medium into the upright post of the stirring head to cool the stirring head.
For molten iron desulphurization by a medium and small ladle mechanical stirring method, the cooling mode has the advantage that the effect is good because the stirring blades of the stirring head are small; however, for large ladle molten iron desulphurization, because the stirring blade is large, the distance between the outer diameter of the stirring blade and the cooling hole in the upright post is up to half a meter or even one meter, the steel core of the stirring blade is long, cooling is realized by introducing a cooling medium into the upright post, the cooling effect on the stirring blade is not ideal, and the use temperature of the steel core of the stirring blade is ensured by thickening the refractory material on the surface of the steel core of the blade (enhancing the heat insulation effect); the following problems are: because the impact strength and the toughness of the refractory material are lower, the thicker the refractory material is laid, the lower the molten iron impact capacity which can be borne by the stirring blade is, and the more easily the surface of the blade of the stirring head is damaged, the longer the service life of the stirring head is, and the replacement frequency is higher.
The traditional mechanical stirring method for desulfurization used at present has the defects and shortcomings of the traditional mechanical stirring method, and needs to be improved urgently: (1) the desulfurizer is added from the surface of molten iron, and part of added desulfurizer can be diffused and floated by high-temperature gas on the surface of the molten iron during the addition, so that a large amount of dust is generated in a desulfurization workshop, the working environment is severe, and the service life of equipment is influenced; (2) in order to quickly screw the desulfurizer into molten iron, mix and react with the molten iron in the steel ladle, a high-power high-speed stirring device is required, the equipment cost is high, the equipment is complex, and the energy consumption is increased; (3) the desulfurizer is frequently agglomerated by a mode of screwing the desulfurizer into the molten iron through the mechanical stirring blades, so that the desulfurizer cannot be fully mixed with the molten iron, and the using amount of the desulfurizer is increased.
Disclosure of Invention
The invention aims to solve the technical problems that the existing desulfurization equipment has large pollution, the working environment of a stirring head is severe and is easy to damage, and a desulfurizing agent is unevenly dispersed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the composite molten iron desulphurization stirring head with the blade cooling function comprises a tubular stand column and a plurality of stirring blade core plates, wherein the stirring blade core plates are arranged at intervals along the circumferential direction of one end part of the stand column and are connected with the stand column, the stirring blade core plates are of hollow structures, the upper ends of the stirring blade core plates are provided with flow guide holes communicated with the inside of the stand column, a cavity inside the stand column is sequentially provided with a jetting tube and a cooling tube at intervals from inside to outside, the upper end opening of the cooling tube is provided with a supporting block, the upper end of the jetting tube extends out of the supporting block, the lower end opening of the stand column is provided with a desulfurizer distribution block communicated with the jetting tube, the side wall of the lower end of the cooling tube is provided with a plurality of through holes, the inner wall of the stand column close to the end part is provided with a stop block; the air inlet is communicated with a cavity between the outer wall of the blowing pipe and the inner wall of the cooling pipe, the air outlet is communicated with the outer wall of the cooling pipe and the inner wall of the upright post, and the air inlet and the air outlet are both arranged at one end far away from the through hole; and the outer side walls of the vertical columns and the core plates of the stirring blades are provided with refractory materials, and the interior of the refractory material at the lower end is provided with a blowing hole communicated with the desulfurizer distribution block.
Wherein, in the device, the outer side wall of the core plate of the stirring blade is provided with a refractory material to form the stirring blade, the transition position between the upright post and the stirring blade is in conical transition, the transition angle is 10-30 degrees and/or the included angle between the upper surface of the stirring blade and the horizontal plane is 0-30 degrees.
Furthermore, the iron facing surface of the stirring blade in the device inclines forwards by 3-20 degrees from bottom to top and/or the back iron surface inclines forwards by 0-10 degrees from bottom to top and/or the side surface inclines outwards by 2-4 degrees from bottom to top.
Wherein, a plurality of V-shaped reinforcing steel bars are arranged on the outer surfaces of the upright post and the core plate of the stirring blade in the device.
Wherein, the number of the stirring blade core plates in the device is at least 3, and the stirring blade core plates are uniformly arranged at intervals.
The device is characterized in that a connecting flange is arranged at the upper end of the middle upright column, an annular partition plate parallel to the connecting flange is arranged on the inner tube of the upright column close to the connecting flange, a plurality of reinforcing rib plates uniformly distributed along the circumference are vertically arranged between the connecting flange and the partition plate, and the air outlet is formed in the partition plate.
Further, the air inlet holes in the device are arranged on the supporting block.
Wherein, a plurality of guide plates are arranged at intervals in the inner cavity of the core plate of the stirring blade in the device.
The inner wall of the lower end of the upright post in the device is of a counter bore structure, the inlet of the exhaust hole is arranged on the inner wall of the large end of the counter bore, and the stop block is arranged on the step surface of the counter bore.
The invention has the beneficial effects that: the vertical column of the device is communicated with the inner part of the core plate of the stirring blade, so that a cooling medium enters along the cooling pipe and is discharged along the inner cavity of the core plate of the stirring blade and the gap between the cooling pipe and the vertical column, and the stirring head of the whole device is cooled; meanwhile, the desulfurizer is sprayed into the molten iron through a spraying pipe in the mechanical stirring head, the dynamic condition of fully mixing the desulfurizer and the molten iron is provided through the mechanical rotation of the stirring blades, the air pressure and air quantity of the sprayed desulfurizer are reduced, large bubbles are avoided, splashing on the shallow surface of the molten iron is avoided, the utilization rate of the desulfurizer is improved, and the working environment of desulfurization is improved; and finally, the desulfurizing agent is sprayed into the molten iron through a spraying and blowing pipe in the mechanical stirring head, and the mechanical stirring blades only play a role in improving the dynamic conditions of the desulfurizing agent, so that the rotating speed and the stirring power of the stirring blades can be reduced, and the high-efficiency energy-saving effect is realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the structure at I in FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of FIG. 2 at point II;
FIG. 5 is a schematic bottom view of the present invention.
Labeled as: the device comprises a connecting flange 1, a stirring shaft 2, stirring blades 3, reinforcing rib plates 4, partition plates 5, a stand column 6, a blowing pipe 7, a cooling pipe 8, a refractory material 9, a stirring blade core plate 10, a desulfurizer distribution block 11, a desulfurizer output pipe 111, a blowing hole 12, a through hole 13, a guide plate 14, a stop block 15, an exhaust hole 16, a support block 17 and a guide hole 18.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the composite molten iron desulphurization stirring head with blade cooling function of the present invention comprises a tubular column 6 and a plurality of stirring blade core plates 10, wherein the stirring blade core plates 10 are circumferentially arranged along one end of the column 6 at intervals and connected with the column 6, the stirring blade core plates 10 are of a hollow structure, the upper ends of the stirring blade core plates are provided with flow guide holes 18 communicated with the inside of the column 6, the cavity inside the column 6 is sequentially penetrated with an injection tube 7 and a cooling tube 8 from inside to outside at intervals, the upper end opening of the cooling tube 8 is provided with a support block 17, the upper end of the injection tube 7 extends out of the support block 17, the lower end opening of the column 6 is provided with a desulfurizer distribution block 11 communicated with the injection tube 7, the side wall of the lower end of the cooling tube 8 is provided with a plurality of through holes 13, the inner wall of the column 6 near the end is provided with a stop block, a plurality of exhaust holes 16 communicated with the inner cavity of the stirring blade core plate 10 are radially arranged on the side wall of the upright post 6 at the through hole 13; the air inlet is communicated with a cavity between the outer wall of the blowing pipe 7 and the inner wall of the cooling pipe 8, the air outlet is communicated with the outer wall of the cooling pipe 8 and the inner wall of the upright post 6, and the air inlet and the air outlet are both arranged at one end position far away from the through hole 13; the outer side walls of the upright post 6 and the stirring blade core plate 10 are provided with refractory materials 9, and the interior of the refractory material 9 at the lower end is provided with a blowing hole 12 communicated with a desulfurizer distribution block 11. As can be understood by those skilled in the art, the stirring blade core plate 10 of the device is arranged along one end part of the upright post 6 at intervals in the circumferential direction and connected with the upright post 6, the stirring blade core plate 10 is of a hollow structure, the upper end of the stirring blade core plate is provided with a flow guide hole 18 communicated with the inside of the upright post 6, the upright post 6 is of a tubular structure, a cooling pipe 8 and an injection pipe 7 with large and small diameters penetrate through the inner cavity of the upright post, the lower end of the upright post 6 is blocked by a desulfurizer distribution block 11, meanwhile, a stop block 15 is preferably arranged on the inner wall of the upright post 6 close to the end part, the stop block 15 seals the inner wall of the upright post 6 and the lower end of the cavity of the outer wall of the cooling pipe 8, a plurality of exhaust holes 16 communicated with the inner cavity of the stirring blade core plate 10 are radially arranged on the side wall of the upright post 6 at the through hole 13, and the structure enables a cooling medium to enter from an air inlet And discharging the air outlet, and cooling the upright post 6 and the stirring blade core plate 10 simultaneously. The inlet of the desulfurizer distribution block 11 of the device is communicated with the blowing pipe 7, and the desulfurizer distribution block 11 is an existing product and is structurally characterized in that a blind hole-shaped inlet is arranged at the upper end, and an outlet obliquely extends into the desulfurizer distribution block along the other end and is communicated with the inlet. In practical use, the desulfurizer can enter the desulfurizer distribution block 11 along the blowing pipe 7 and is output along the desulfurizer output pipe 111 arranged along the circumferential direction of the desulfurizer distribution block, and because the refractory material 9 is actually required to be arranged outside the upright column 6 and the stirring blade core plate 10 in order to prevent the abrasion of the upright column 6 and the stirring blade core plate 10, the inner part of the refractory material 9 at the preferable lower end of the device is provided with the blowing hole 12 communicated with the outlet of the desulfurizer distribution block 11, namely the desulfurizer output pipe 111 in the figure. Meanwhile, the cooling pipe 8 is mainly connected with an external cooling medium to cool the whole device, so that a supporting block 17 is preferably arranged at the upper port of the cooling pipe 8, the supporting block 17 can block a gap between the upper end of the cooling pipe 8 and the injection pipe 7, the supporting block 17 extends out of the upper end of the injection pipe 7, a plurality of through holes 13 are formed in the side wall of the lower end of the cooling pipe 8, meanwhile, an air inlet is communicated with a cavity between the outer wall of the injection pipe 7 and the inner wall of the cooling pipe 8, an air outlet is communicated with the outer wall of the cooling pipe 8 and the inner wall of the upright post 6, the cooling medium enters the cavity formed by the inner wall of the cooling pipe 8 and the outer wall of the injection pipe 7 along the air inlet at the upper end, enters the cavity formed by the outer wall of the cooling pipe 8 and the inner wall. Simultaneously in order to increase the heat transfer time, this device still preferably will and air inlet and gas outlet all set up the one end position of keeping away from through-hole 13. Smooth transition between each stirring vane 3 of stirring head, transition department can be circular arc smooth transition, also can be other modes such as hyperbola transition, avoids the hookup location between the stirring vane 3 to produce stress concentration, improves stirring vane 3's torsional strength, improves its life.
Preferably, in the device, the outer side wall of the core plate 10 of the stirring blade is provided with the refractory material 9 to form the stirring blade 3, the transition position between the upright post 6 and the stirring blade 3 is in conical transition, and the transition angle is 10-30 degrees and/or the included angle between the upper surface of the stirring blade 3 and the horizontal plane is 0-30 degrees. The technical personnel in the field can understand that, form (mixing) shaft 2 after stand 6 outside sets up refractory material 9, this device is for avoiding wearing and tearing, this device should preferably be with (mixing) shaft 2 and stirring vane 3 between the transition department for the toper transition, further preferred transition angle (for the convenience understanding this device has been marked with sigma to the transition angle in the figure) is 10 ~ 30, stirring vane 3 upper surface and horizontal plane contained angle (for the convenience understanding this device has been marked with eta to above-mentioned contained angle in the figure) become 0 ~ 30 simultaneously, this kind of structural setting is mainly for reducing the stirring head and hangs the sediment, further improves stirring device life.
Preferably, the iron facing surface of the stirring blade 3 in the device inclines forwards by 3-20 degrees from bottom to top and/or the back iron surface inclines forwards by 0-10 degrees from bottom to top and/or the side surface inclines outwards by 2-4 degrees from bottom to top. As can be understood by those skilled in the art, in order to further reduce slag adhering of the stirring head and cause great abrasion and reduce the service life, the stirring device preferably inclines 3-20 degrees from bottom to top on the iron facing surface of the stirring blade 3 and/or 0-10 degrees from bottom to top on the back iron surface and/or 2-4 degrees from bottom to top on the side surface. For ease of understanding the present device, the angles are also identified in the drawings by β, α, γ, respectively.
Preferably, in the device, a plurality of V-shaped steel bars are arranged on the outer surfaces of the upright post 6 and the stirring blade core plate 10. As will be appreciated by those skilled in the art, in order to facilitate the tight connection of the refractory 9 to the vertical column 6 and the stirring blade core 10, the present device is preferably provided with a plurality of V-shaped reinforcing bars on the outer surfaces of the vertical column 6 and the stirring blade core 10. In practice, the V-shaped steel bars can be welded on the outer surfaces of the upright post 6 and the core plate 10 of the stirring blade at even intervals by adopting a welding mode.
Preferably, the number of the stirring blade core plates 10 in the device is at least 3, and the stirring blade core plates are uniformly arranged at intervals. As can be understood by those skilled in the art, since the blowing holes 12 are provided at the lower end of the stirring vane 3, in order to ensure uniform distribution of the desulfurizing agent, it is preferable that the stirring vane core plates 10 are at least 3 in number and are uniformly spaced. In practice, it is preferable that the number of the stirring blade core plates 10 is 4, and the stirring blade core plates are uniformly spaced.
Preferably, a connecting flange 1 is arranged at the upper end of an upright post 6 in the device, an annular partition plate 5 parallel to the connecting flange 1 is arranged on an inner pipe of the upright post 6 close to the connecting flange 1, a plurality of reinforcing rib plates 4 uniformly distributed along the circumference are vertically arranged between the connecting flange 1 and the partition plate 5, and the air outlet is formed in the partition plate 5. As can be understood by those skilled in the art, in order to facilitate the connection of the device with the rotating shaft, the device is preferably provided with the connecting flange 1 at the upper end of the upright post 6, and in order to increase the strength of the upper end, the device is further preferably provided with an annular partition plate 5 which is parallel to the connecting flange 1 on the inner pipe of the upright post 6 close to the connecting flange 1, and a plurality of reinforcing rib plates 4 which are uniformly distributed along the circumference are vertically arranged between the connecting flange 1 and the partition plate 5. And meanwhile, the air outlet is preferably arranged on the partition plate 5, so that the partition plate 5 can seal a cavity between the inner wall of the upright post 6 and the outer wall of the cooling pipe 8, the cooling medium can be discharged in time after heat exchange, and the partition plate 5 can be respectively connected with the end surface of the upright post 6 and the end surface of the cooling pipe 8 in a sealing manner by adopting a welding mode.
Preferably, the above-mentioned device is such that the air intake holes are provided in the support block 17. It will be appreciated by those skilled in the art that in order to make the device more compact, the device preferably has the air inlets provided on the support blocks 17, and since the support blocks 17 seal the upper cavity between the cooling pipe 8 and the injection pipe 7, and the lower end is sealed by the desulfurizing agent distributing block 11, the input of the cooling medium can be accomplished by providing the air inlets on the support blocks 17.
Preferably, in the above device, a plurality of baffles 14 are arranged at intervals in the inner cavity of the stirring blade core plate 10. It can be understood by those skilled in the art that, in order to prolong the flowing time of the cooling medium in the internal cavity of the stirring blade core plate 10 and increase the heat exchange effect, the present device is preferably provided with a plurality of baffles 14 at intervals in the internal cavity of the stirring blade core plate 10, which can be determined by the actual condition of the cavity.
Preferably, in the device, the inner wall of the lower end of the upright post 6 is in a counter bore structure, the inlet of the exhaust hole 16 is arranged on the inner wall of the large end of the counter bore, and the stop block 15 is arranged on the step surface of the counter bore. Those skilled in the art can understand that, because the clearance between the outer wall of the cooling tube 8 and the inner wall of the upright post 6 is limited in order to prevent the pressure from being held back and buffered, the inner wall of the lower end of the upright post 6 is preferably of a counter bore structure, the inlet of the exhaust hole 16 is arranged on the inner wall of the large end of the counter bore and radially extends to the inner cavity of the stirring blade core plate 10 along the upright post 6, and meanwhile, the stop block 15 is further arranged on the step surface of the counter bore, so that the stop block 15 can seal the cavity between the inner wall of the upright post 6 and the outer wall of the cooling tube 8, and actually, the fixing.
Claims (9)
1. Take blade cooling function's complex method molten iron desulfurization stirring head, its characterized in that: the stirring blade core plates (10) are arranged at intervals along the circumferential direction of one end part of the upright post (6) and are connected with the upright post (6), the stirring blade core plates (10) are of a hollow structure, the upper ends of the stirring blade core plates are provided with flow guide holes (18) communicated with the inside of the upright post (6), the inner cavity of the upright post (6) is sequentially penetrated with injection pipes (7) and cooling pipes (8) at intervals from inside to outside, the upper end opening of each cooling pipe (8) is provided with a supporting block (17), the upper end of each injection pipe (7) extends out of the supporting block (17), the lower end opening of the upright post (6) is provided with a desulfurizer distribution block (11) communicated with the injection pipes (7), the side wall of the lower end of each cooling pipe (8) is provided with a plurality of through holes (13), the inner wall of the end part of the upright post (6) close to the end part is provided with a stop block (15), and the stop, a plurality of exhaust holes (16) communicated with the inner cavity of the stirring blade core plate (10) are radially arranged on the side wall of the upright post (6) at the through hole (13); the air inlet is communicated with a cavity between the outer wall of the injection pipe (7) and the inner wall of the cooling pipe (8), the air outlet is communicated with the outer wall of the cooling pipe (8) and the inner wall of the upright post (6), and the air inlet and the air outlet are both arranged at one end position far away from the through hole (13); the outer side walls of the upright columns (6) and the stirring blade core plates (10) are provided with refractory materials (9), and the interior of the refractory material (9) at the lower end is provided with a blowing hole (12) communicated with a desulfurizer distribution block (11).
2. The mixing head with blade cooling function for molten iron desulfurization according to claim 1, characterized in that: stirring vane (3) is formed after stirring vane core (10) lateral wall is provided with refractory material (9), and the transition department is the toper transition between stand (6) and stirring vane (3), and the transition angle is 10 ~ 30 and/or stirring vane (3) upper surface and horizontal plane contained angle become 0 ~ 30.
3. The mixing head with blade cooling function for molten iron desulfurization according to claim 2, characterized in that: the iron facing surface of the stirring blade (3) inclines forwards by 3-20 degrees from bottom to top and/or the back iron surface inclines forwards by 0-10 degrees from bottom to top and/or the side surface inclines outwards by 2-4 degrees from bottom to top.
4. The mixing head with blade cooling function for molten iron desulfurization according to claim 1, characterized in that: and a plurality of V-shaped steel bars are arranged on the outer surfaces of the upright post (6) and the stirring blade core plate (10).
5. The mixer head according to claim 1 for desulfurization of molten iron by composite process with blade cooling function, wherein: the number of the stirring blade core plates (10) is at least 3, and the stirring blade core plates are uniformly arranged at intervals.
6. The mixing head with blade cooling function for molten iron desulfurization according to claim 1, characterized in that: the upper end of the upright post (6) is provided with a connecting flange (1), an annular partition plate (5) parallel to the connecting flange (1) is arranged on an inner tube of the upright post (6) close to the connecting flange (1), a plurality of reinforcing rib plates (4) which are uniformly distributed along the circumference are vertically arranged between the connecting flange (1) and the partition plate (5), and the gas outlet is formed in the partition plate (5).
7. The mixing head with blade cooling function for molten iron desulfurization according to claim 6, characterized in that: the air inlet holes are arranged on the supporting block (17).
8. The mixing head with blade cooling function for molten iron desulfurization according to claim 1, characterized in that: a plurality of guide plates (14) are arranged in the inner cavity of the stirring blade core plate (10) at intervals.
9. The mixing head with blade cooling function for molten iron desulfurization according to claim 1, characterized in that: the inner wall of the lower end of the upright post (6) is of a counter bore structure, the inlet of the exhaust hole (16) is arranged on the inner wall of the large end of the counter bore, and the stop block (15) is arranged on the step surface of the counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895226.8A CN112011663A (en) | 2020-08-31 | 2020-08-31 | Composite molten iron desulphurization stirring head with blade cooling function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895226.8A CN112011663A (en) | 2020-08-31 | 2020-08-31 | Composite molten iron desulphurization stirring head with blade cooling function |
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| CN112011663A true CN112011663A (en) | 2020-12-01 |
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| CN202010895226.8A Pending CN112011663A (en) | 2020-08-31 | 2020-08-31 | Composite molten iron desulphurization stirring head with blade cooling function |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037714A (en) * | 2007-04-26 | 2007-09-19 | 武汉钢铁(集团)公司 | Molten iron desulfurization stir head |
| KR20110065965A (en) * | 2009-12-10 | 2011-06-16 | 주식회사 포스코 | Impeller for kanvara reactor |
| CN102766720A (en) * | 2012-06-28 | 2012-11-07 | 攀钢集团研究院有限公司 | Desulphurization spray gun and desulphurization method thereof |
| CN102978323A (en) * | 2012-12-18 | 2013-03-20 | 营口东邦冶金设备耐材有限公司 | Multi-blade molten iron desulphurization stirring device |
| CN110699508A (en) * | 2019-10-31 | 2020-01-17 | 武汉科技大学 | Blowing type spiral stirrer for molten iron desulphurization |
-
2020
- 2020-08-31 CN CN202010895226.8A patent/CN112011663A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037714A (en) * | 2007-04-26 | 2007-09-19 | 武汉钢铁(集团)公司 | Molten iron desulfurization stir head |
| KR20110065965A (en) * | 2009-12-10 | 2011-06-16 | 주식회사 포스코 | Impeller for kanvara reactor |
| CN102766720A (en) * | 2012-06-28 | 2012-11-07 | 攀钢集团研究院有限公司 | Desulphurization spray gun and desulphurization method thereof |
| CN102978323A (en) * | 2012-12-18 | 2013-03-20 | 营口东邦冶金设备耐材有限公司 | Multi-blade molten iron desulphurization stirring device |
| CN110699508A (en) * | 2019-10-31 | 2020-01-17 | 武汉科技大学 | Blowing type spiral stirrer for molten iron desulphurization |
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