CN110042201A - The agitating device of compound desulfurizing iron is stirred in a kind of coolable blowing - Google Patents
The agitating device of compound desulfurizing iron is stirred in a kind of coolable blowing Download PDFInfo
- Publication number
- CN110042201A CN110042201A CN201910402226.7A CN201910402226A CN110042201A CN 110042201 A CN110042201 A CN 110042201A CN 201910402226 A CN201910402226 A CN 201910402226A CN 110042201 A CN110042201 A CN 110042201A
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- Prior art keywords
- powder
- transmission shaft
- tracheae
- pipe
- stirring
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 44
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 40
- 238000007664 blowing Methods 0.000 title claims abstract description 21
- 150000001875 compounds Chemical class 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 150
- 230000005540 biological transmission Effects 0.000 claims abstract description 72
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 72
- 239000010959 steel Substances 0.000 claims description 72
- 108091006146 Channels Proteins 0.000 claims description 63
- 238000001816 cooling Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 8
- 239000011819 refractory material Substances 0.000 claims description 8
- 238000005538 encapsulation Methods 0.000 claims description 7
- 102000003691 T-Type Calcium Channels Human genes 0.000 claims description 4
- 108090000030 T-Type Calcium Channels Proteins 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 abstract description 16
- 239000002184 metal Substances 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000007667 floating Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 44
- 238000007789 sealing Methods 0.000 description 28
- 230000023556 desulfurization Effects 0.000 description 9
- 238000013019 agitation Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses the agitating devices that compound desulfurizing iron is stirred in a kind of coolable blowing, including lifting frame, rotary drive system, transmission shaft, stirring-head, powder tracheae and refrigerator pipe, lifting frame is driven by lift drive system, can be gone up and down and be locked in vertical direction;Rotary drive system is installed on lifting frame, and can be gone up and down jointly with lifting frame;The driving end of rotary drive system is connected with the upper end of transmission shaft;The lower end of transmission shaft is connected with stirring-head, and stirring-head can be driven to rotate under the driving of rotary drive system;Transmission shaft and stirring-head are hollow structure inside, and powder tracheae is coaxially arranged and the inside of refrigerator pipe, and the two is from transmission shaft inner shaft to the interior bottom for extending to stirring-head.The invention has the benefit that desulfurizing agent is transported to hot metal interior by the inner cavity of stirring-head by the present invention, extend floating path and residence time of the desulfurizing agent in molten iron, to improve the utilization rate of desulfurizing agent, reduce iron loss, further improves desulfuration efficiency.
Description
Technical field
The invention belongs to technical field of hot metal pretreatment, and in particular to a kind of compound desulfurizing iron of coolable blowing stirring
Agitating device.
Background technique
With social development, continuous improvement to steel quality requirements, it is essential that desulfurizing iron has become steel production
One of link.Mechanical agitation desulfuration and blowing desulfurization are two kinds of main methods of current desulfurizing iron: mechanical agitation desulfuration method
It is that the stirring-head of an outer lining refractories is immersed in hot-metal bottle, its rotation is driven by driving device, so that molten iron is stirred,
Promote molten iron and desulfurizing agent that desulphurization reaction occurs, achievees the purpose that desulfurizing iron;This doctor treatment desulfurization effect is good, production cost
Low, short processing time, but hot metal temperature drop is big, iron loss amount is big.Blowing desulfurization method is using high pressure gas as carrier by desulfurization
Agent is sprayed into molten iron by spray gun, and carrier gas is played the role of stirring molten iron simultaneously, is mixed desulfurizing agent and molten iron and is carried out desulfurization;Blowing
Doctor treatment equipment investment expense is low, and hot metal temperature drop is small, and iron loss amount is small, but dynamic conditions is poor, and desulfurizing agent cannot be filled with molten iron
Divide reaction, sorbent utilization is low, and desulfurizing agent unit consumption is at high cost.Therefore, in order to meet the needs of modern production, it is necessary to iron
The method of water desulfurization is further studied.
Summary of the invention
It is an object of the present invention in view of the deficiencies of the prior art, provide a kind of coolable blowing stirring compound molten iron
The agitating device of desulfurization.
The technical solution adopted by the present invention are as follows: the agitating device of compound desulfurizing iron, packet are stirred in a kind of coolable blowing
Lifting frame, rotary drive system, transmission shaft, stirring-head, powder tracheae and refrigerator pipe are included, the lifting frame is by lifting driving system
System driving, can go up and down and lock in vertical direction;The rotary drive system is installed on lifting frame, and can be with lifting frame
Frame is gone up and down jointly;The driving end of the rotary drive system is connected with the upper end of transmission shaft;The transmission shaft is arranged vertically, transmission
The lower end of axis is connected with stirring-head, and stirring-head can be driven to rotate under the driving of rotary drive system;It the transmission shaft and stirs
Mixing head is hollow structure inside, the powder tracheae be coaxially arranged with the inside of refrigerator pipe, and the two from transmission shaft inner shaft to
Extend to the interior bottom of stirring-head;The entrance of the powder tracheae is connected to the desulfurizing agent powder gas supply line of peripheral hardware, powder tracheae
Outlet is in communication with the outside;Gap between powder tracheae outer wall and cold air inside pipe wall forms inlet channel, cold air pipe outer wall and transmission
Gap between axis or stirring-head inner wall forms outlet passageway, and the bottom of inlet channel is connected to outlet passageway, and outlet passageway
Upper outlet be in communication with the outside.
According to the above scheme, the stirring-head includes blender steel core;The flange of blender steel core upper end is by partly connecing
Hand is connected with the lower end of transmission shaft, and the powder tracheae and refrigerator pipe are penetrated from the upper end of transmission shaft, and the two is coextensive to stirring
The lower end of device steel core and powder tracheae is stretched out from the lower end of blender;The lower part of blender steel core and powder tracheae stretch out blender steel core
Part it is external be coated with refractory material, powder gas exit passageway be connected to powder tracheae is set in refractory material, the outlet of powder gas leads to
The one end in road is connected to powder tracheae, and the other end of powder gas exit passageway is in communication with the outside;The lower end of the refrigerator pipe offers company
The side opening of logical inlet channel and outlet passageway.
According to the above scheme, powder gas exit passageway there are two being arranged symmetrically in the lower vertical of lower part powder tracheae, two powder gas
Exit passageway and lower part powder tracheae form T-type channel, and desulfurizing agent powder gas is sprayed by the two powder gas exit passageways.
According to the above scheme, refrigerator pipe includes top refrigerator pipe and lower ones pipe interconnected, middle and upper part refrigerator pipe
In transmission shaft, lower ones pipe is set in blender steel core;The bottom of lower ones pipe be provided with connection inlet channel and
The side opening of outlet passageway;The junction encapsulation process of refrigerator pipe and lower ones pipe on top.
According to the above scheme, powder tracheae includes connected top powder tracheae and lower part powder tracheae, and middle and upper part powder tracheae is set to
In the refrigerator pipe of top, lower part powder air pipe sleeve is in lower ones pipe;On top, the junction of powder tracheae and lower part powder tracheae is sealed
Processing.
According to the above scheme, the lifting frame is steel structure frame, is driven by lift drive system, can be according to desulfurizing iron
Technique requirement, is freely lifted and locks in vertical direction, which is the prior art, does not repeat here.On lifting frame
Upper layer steel platform, middle layer steel platform and lower layer's steel platform are set along short transverse interval;The rotary drive system includes being installed on
Rotary drive motor in the steel platform of upper layer, and the rotation driving speed reducer being installed in the steel platform of middle layer, rotation driving electricity
The motor shaft of machine, the motor shaft of rotation driving speed reducer and transmission shaft are sequentially connected.
According to the above scheme, the transmission shaft is hollow long-shaft type structure, is arranged vertically;Transmission shaft and it is respectively arranged on axis
The bearing adapter in seat and in step is held, and is supported by the two;Wherein, top chock is installed in lower layer's steel platform, under
Bearing block is set in supporting steel pipe, and supporting steel pipe is fixed on the bottom of lower layer's steel platform.
According to the above scheme, the top of transmission shaft is configured with slip ring, and the lower part of slip ring is connected with top chock;Under transmission shaft
End cap is set to half and takes over interior and be keyed with half catcher;The lower part of half catcher is connected by bolt with the upper end of blender steel core.
According to the above scheme, the slip ring is hollow cylinder type structure, and the inner sidewall of slip ring is spaced in the axial direction to be opened up certainly
Circular passage one, circular passage two and circular passage three under above, circular passage one, circular passage two and circular passage three are divided
It is not correspondingly provided with powder gas entrance, cooling air intake, cooling air outlet;Corresponding the vertical of a connection in each circular passage is led to
Road namely three respectively correspond vertical channel one, vertical channel two and vertical channel three, and each vertical channel is along short transverse interval
It is opened on transmission shaft;Powder gas entrance, circular passage one, vertical channel one, powder tracheae are sequentially communicated, and cooling air enters
Mouth, circular passage two, vertical channel two, inlet channel are sequentially communicated, outlet passageway, vertical channel three, circular passage three,
Cooling air outlet is sequentially communicated.
According to the above scheme, encapsulation process between each vertical channel on transmission shaft and the circular passage on slip ring.
The invention has the benefit that the present invention based on mechanical agitation desulfuration, remains mechanical agitation desulfuration device
Main functionality and structure, be built into powder gas channel in its refrigerator pipe, desulfurization effect is good, production cost is low, while by desulfurizing agent
By way of gas conveying, desulfurizing agent is transported to by hot metal interior by the inner cavity of stirring-head, extends desulfurizing agent in molten iron
Floating path and the residence time, thus improve the utilization rate of desulfurizing agent, reduce iron loss, further improve desulfuration efficiency;This
Invention sets refrigerator pipe in transmission shaft and blender steel core, and logical cold air is cooling when work, protects stirring-head steel core, extends its use
Service life;Structure of the invention design rationally, optimizes the structure and sealing performance in each channel, feasibility is good, high reliablity;The present invention is set
Standby input cost is relative to mechanical agitation desulfuration agitating device without being significantly increased, and investment return significantly improves, and is particularly suitable for
Large-tonnage Desulphuring Process of Molten Iron, remarkable in economical benefits.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a specific embodiment of the invention.
Fig. 2 is enlarged drawing at the A in the present embodiment.
Fig. 3 is enlarged drawing at the B in the present embodiment.
Fig. 4 is enlarged drawing at the C in the present embodiment.
Fig. 5 is enlarged drawing at the D in the present embodiment.
Description of symbols in figure: 1- lifting frame, 2- rotary drive motor, 3- shaft coupling one, 4- rotation driving speed reducer, 5-
Shaft coupling two, 6- transmission shaft, 7- slip ring, 8- upper bearing seat, the top 9- refrigerator pipe, the top 10- powder tracheae, 11- lower bearing
Seat, 12- key, 13- half take over, 14- stirring-head steel core, 15- lower ones pipe, the lower part 16- powder tracheae, 17- powder gas exit passageway,
The resistance to material of 18- stirring-head, 19- powder gas entrance, 20- cooling air intake, 21- cooling air outlet, the circular passage 22- one, 23- hang down
Straight channel one, the circular passage 24- two, 25- vertical channel two, the circular passage 26- three, 27- vertical channel three, 28- sealing ring one,
29- powder tracheae seal head, 30- sealing ring two, 31- refrigerator pipe seal head, 32- sealing ring three, 33- bearing, 34- sealing ring four,
35- snap-gauge, 36- wing plate one, 37- nut, 38- sealing plate one, 39- cover board, 40- refrigerator pipe seal groove, 41- sealing ring five, 42-
Wing plate two, 43- sealing plate two, 44- sealing ring six, 45- powder tracheae seal groove, 46- refrigerator pipe side opening, 47- plug one, 48- are stifled
First two, 49- supporting steel pipe, 50- connection bolt.
Specific embodiment
For a better understanding of the present invention, the present invention is further described in the following with reference to the drawings and specific embodiments.
A kind of agitating device of the cooling compound desulfurizing iron of blowing stirring of band as shown in Figure 1, including lifting frame 1,
Rotary drive system, transmission shaft 6, stirring-head, powder tracheae and refrigerator pipe, the lifting frame 1 are driven by lift drive system, can
It goes up and down and locks in vertical direction;The rotary drive system is installed on lifting frame 1, and can be common with lifting frame 1
Lifting;The driving end of the rotary drive system is connected with the upper end of transmission shaft 6;The transmission shaft 6 is arranged vertically, transmission shaft 6
Lower end be connected with stirring-head, and can be driven under the driving of rotary drive system stirring-head rotate;The transmission shaft 6 and stirring
Head is hollow structure inside, and the powder tracheae is coaxially arranged and the inside of refrigerator pipe, and the two is prolonged from 6 inside of transmission shaft is axial
Extend to the interior bottom of stirring-head;The entrance of the powder tracheae is connected to the desulfurizing agent powder gas supply line of peripheral hardware, and powder tracheae goes out
Mouth is in communication with the outside;Gap between powder tracheae outer wall and cold air inside pipe wall forms inlet channel, cold air pipe outer wall and transmission shaft 6
Or the gap between stirring-head inner wall forms outlet passageway, the bottom of inlet channel is connected to outlet passageway, and outlet passageway
Upper outlet is in communication with the outside.In the present embodiment, refrigerator pipe includes top refrigerator pipe 9 and lower ones pipe 15 interconnected,
Its middle and upper part refrigerator pipe 9 is set in transmission shaft 6, and lower ones pipe 15 is set to blender steel core 14;Powder tracheae includes top powder gas
Pipe 10 and lower part powder tracheae 16, middle and upper part powder tracheae 10 are set in top refrigerator pipe 9, and 16 sets of lower part powder tracheae is in lower ones
In pipe 15.
In the present invention, the lifting frame 1 is steel structure frame, is driven by lift drive system, can be according to desulfurizing iron
Technique requirement, is freely lifted and locks in vertical direction, which is the prior art, does not repeat here.On lifting frame 1
Upper layer steel platform, middle layer steel platform and lower layer's steel platform are set along short transverse interval;The rotary drive system includes being installed on
Rotary drive motor 2 in the steel platform of upper layer, and the rotation driving speed reducer 4 being installed in the steel platform of middle layer, rotation driving
The motor shaft of motor 2 is connected by shaft coupling 1 with the motor shaft of rotation driving speed reducer 4, the motor of rotation driving speed reducer 4
Axis is connected by shaft coupling 25 with the upper end of transmission shaft 6.
In the present invention, the transmission shaft 6 is hollow long-shaft type structure, is arranged vertically;Transmission shaft 6 and it is respectively arranged on axis
It holds the bearing 33 in 33 and in lower bearing 33 to be adapted to, and is supported by the two;Wherein, upper bearing (metal) 33 to be installed on lower layer's steel flat
On platform, lower bearing 33 are set in supporting steel pipe 49, and supporting steel pipe 49 is fixed on the bottom of lower layer's steel platform, and transmission shaft 6 is certainly
It is connected after being pierced by supporting steel pipe 49 with blender steel core 14;Dust enters bearing 33 in order to prevent, and the two of lower bearing seat 11
Sealing ring 3 32 is respectively set in end.In the present embodiment, upper bearing seat 6 and lower bearing seat 11 pass through supporting steel pipe 49 and are linked to be one
Body is fixed on jointly in lower layer's steel platform of lifting frame 1, realizes the support to transmission shaft 6.The top of transmission shaft 6 is configured with
The lower part of slip ring 7, slip ring 7 is connected by bolt with upper bearing (metal) 33.The lower end of transmission shaft 6 be arranged in half catcher 13 and with half
The connection of 13 keys 12 (setting of key 12 is between transmission shaft 6 and half catcher 13 for transmitting torque) is taken over, the lower end of key 12 is equipped with lid
Plate 39;The lower part of half catcher 13 is connected by bolt with the upper end of blender steel core 14.
In the present invention, the slip ring 7 is hollow cylinder type structure, and bottom and the upper bearing seat 6 of slip ring 7 are bolted;
The inner sidewall of slip ring 7 is spaced in the axial direction opens up top-down circular passage 1, circular passage 2 24 and circular passage
3 26, circular passage 1, circular passage 2 24 and circular passage 3 26 are respectively corresponded to be entered equipped with powder gas entrance 19, cooling air
Mouth 20, cooling air outlet 21;The vertical channel of the corresponding connection in each circular passage namely above-mentioned three respectively correspond vertical
Straight channel 1, vertical channel 2 25 and vertical channel 3 27, each vertical channel are spaced apart along short transverse and are set to transmission shaft 6
On;Powder gas entrance 19, circular passage 1, vertical channel 1, powder tracheae are sequentially communicated, cooling air intake 20, ring
Shape channel 2 24, vertical channel 2 25, inlet channel are sequentially communicated, outlet passageway, vertical channel 3 27, circular passage three
26, cooling air outlet 21 4 is sequentially communicated.It is close between circular passage on each vertical channel on transmission shaft 6 and slip ring 7
Envelope processing is to prevent to leak, and specifically, between each circular passage and upper and lower ends set sealing ring 1 respectively, altogether
Provided with eight sealing rings 1;On top, the top of powder tracheae 10 is equipped with powder tracheae seal head 29, in powder tracheae seal head 29
Sealing ring 2 30 there are two being set on outer wall, for preventing the leakage between vertical channel 1 and vertical channel 2 25;On top
The top of refrigerator pipe 9 is equipped with refrigerator pipe seal head 31, is set on 31 outer wall of refrigerator pipe seal head there are two sealing ring 3 32, is used for
Prevent the leakage (as shown in Figure 2) between vertical channel 2 25 and vertical channel 3 27.
In the present invention, the stirring-head includes blender steel core 14;The flange of 14 upper end of blender steel core passes through half
Catcher 13 is connected with the lower end of transmission shaft 6, and the upper end of the powder tracheae and refrigerator pipe from transmission shaft 6 penetrates, and the two is coextensive
To blender steel core 14 lower end and powder tracheae stretch out from the lower end of blender;The lower part of blender steel core 14 and powder tracheae stretch out
The part of blender steel core 14 is external to be coated with refractory material 18, and the powder gas outlet being connected to powder tracheae is set in refractory material 18
The one end in channel 17, powder gas exit passageway 17 is connected to powder tracheae, and the other end of powder gas exit passageway 17 is in communication with the outside;It is described
The lower end of refrigerator pipe offers the side opening of connection inlet channel and outlet passageway.In the present embodiment, under lower part powder tracheae 16
There are two powder gas to export for portion's vertical symmetry arrangement, and two powder gas exit passageways 17 and lower part powder tracheae 16 form T-type channel, desulfurization
Agent powder gas is sprayed by the two powder gas exit passageways 17;The bottom welding plug 2 48 of lower part powder tracheae 16.In the present embodiment, stir
It is logical to mix 14 flange of device steel core part below, the part of the lower exposing blender steel core 14 of lower part powder tracheae 16 and the outlet of powder gas
Road 17 is coated by refractory material 18, and refractory material 18 gradually thickeies from top to bottom, resists the erosion of molten iron in whipping process,
Meet the service life demand of stirring-head.
In the present invention, refrigerator pipe includes top refrigerator pipe 9 and lower ones pipe 15 interconnected, middle and upper part refrigerator pipe
9 are set in transmission shaft 6, and lower ones pipe 15 is set in blender steel core 14;On top, 3~5 pieces of wings are arranged in the lower part of refrigerator pipe 9
Plate 1, the outside of its uniform welding and top refrigerator pipe 9.Snap-gauge 35 is disc-shaped structure, and the position of corresponding wing plate 1 has
Groove, wing plate 1 are stuck in corresponding recesses, and are fixed on transmission shaft 6 by connecting bolt 50, to realize and transmission shaft 6
It rotates synchronously.Nut 37 is special outer diameter nut, twists on transmission shaft 6, is used to support wing plate 1 and top refrigerator pipe 9 (such as
Shown in Fig. 4).The bottom of lower ones pipe 15 be provided with 2~3 refrigerator pipe side openings 46 (namely above-mentioned connection inlet channel and
The side opening of outlet passageway), it is discharged after returning to outlet passageway from inlet channel for cooling air, to play cooling and stirring head steel
The effect (as shown in Figure 5) of core 14.The junction encapsulation process of refrigerator pipe 9 and lower ones pipe 15 on top: lower ones pipe
Refrigerator pipe seal groove 40 is arranged in 15 top, two layers of sealing ring 5 41 is disposed in seal groove, for sealing top refrigerator pipe 9
With the junction of lower ones pipe 15.6~8 wing plates 2 42 are equipped on the lateral wall of lower ones pipe 15, with stirring-head steel
The groove of 14 corresponding position of core cooperates, and effect is to ensure that lower ones pipe 15 and stirring-head steel core 14 rotate synchronously (such as Fig. 4 institute
Show).
In the present invention, powder tracheae includes top powder tracheae 10 and lower part powder tracheae 16, and middle and upper part powder tracheae 10 is set to upper
In portion's refrigerator pipe 9,16 sets of lower part powder tracheae is in lower ones pipe 15.In lower part, the lower end vertical symmetry of powder tracheae 16 is disposed with
The opposite powder gas exit passageway 17 of both direction, and in 17 bottom welding plug of powder gas exit passageway, two powder gas exit passageways
17 form T-type channel with lower part powder tracheae 16, and desulfurizing agent powder gas is entered by desulfurizing agent powder gas supply line, successively by top powder
After tracheae 10 and lower part powder tracheae 16, sprayed from two powder gas exit passageways 17.Powder tracheae 10 and lower part powder tracheae 16 on top
Junction encapsulation process: powder tracheae seal groove 45 is arranged in the top of lower part powder tracheae 16, is arranged in seal groove medial surface and seals
6 44 are enclosed for sealing the junction of top powder tracheae 10 Yu lower part powder tracheae 16, while being set at the top of powder tracheae seal groove 45
Sealing plate 2 43 is set, the connection of top powder tracheae 10 Yu lower part powder tracheae 16 is further sealed while supporting top powder tracheae 10
Locate (as shown in Figure 4).Plug 1 is welded between 16 lateral wall of lower part powder tracheae and the hollow inner side wall of stirring-head steel core 14,
Play the role of sealing cooling duct.
Invention has implemented required various functions on blowing process and the compound rear agitating device of paddling process, such as blender
The rotation driving and input of desulfurizing agent powder gas, the setting in powder gas channel, cooling duct are set in blender rotary course
Set and the dynamic sealing of each junction design etc..The operation principle of the present invention is that:
1, agitating device integral installation is required according to sulfur removal technology, when agitating device does not need work, lifting frame 1
It rises to a high position and locks;When agitating device needs work, lifting frame 1 drops to low level and locks, and then could start
Rotary drive motor 2.
2, rotary drive motor 2 drives rotation driving speed reducer 4 by shaft coupling 1, and rotation driving speed reducer 4 is planet
Gear reduction unit, small volume, and there is biggish reduction ratio, revolving speed required for stirring and turning moment can be reached.
3, stirring-head steel core 14, lower part powder tracheae 16, the outlet of powder gas are the entirety that is fixed together, by stirring outside them
Resistance to material cladding, collectively forms stirring-head, is connected by transmission shaft 6, shaft coupling 25 with rotation driving speed reducer 4, is rotating drive
It is rotated under the driving of dynamic motor 22, achievees the purpose that mechanical stirring molten iron.
4, in mechanical agitation process, transmission shaft 6 is rotated synchronously, and slip ring 7 is fixed on upper bearing seat 6 flat with lower layer's steel
Platform is remain stationary, and desulfurizing agent powder gas is entered in circular passage 1 by the powder gas entrance 19 on slip ring 7, and circular passage 1 is begun
It communicates with the holding of vertical channel 1 on transmission shaft 6, and is sealed junction eventually by sealing ring 1;Desulfurizing agent powder gas passes through
Vertical channel 1 enters inside top powder tracheae 10, and by powder tracheae seal head 29 and sealing ring 2 30 by top powder tracheae
10 seal at 6 hollow wall of transmission shaft, prevent powder gas from entering other channels;Desulfurizing agent powder gas is entered by top powder tracheae 10
Inside lower part powder tracheae 16, finally sprayed by two powder gas exit passageways 17 of 16 bottom of lower part powder tracheae, into molten iron.When
When stirring-head rotates, lower part powder tracheae 16 is rotated together with stirring-head, and top powder tracheae 10 then keeps opposing stationary, lower part powder gas
Pipe 16 is sealed with 10 junction of top powder tracheae by sealing ring 6 44 and sealing plate 2 43.
5, in mechanical agitation process, other than desulfurizing agent powder gas to be sprayed into, in order to protect stirring-head steel core 14, extend it
Service life generally requires and is passed through cooling air and is cooled down.Cooling air is entered by the cooling air intake 20 on slip ring 7
In circular passage 2 24, circular passage 2 24 is communicated with the holding of vertical channel 2 25 on transmission shaft 6 always, and by sealing ring one
28 seal junction;Cooling air is entered inside top refrigerator pipe 9 by vertical channel 2 25, and by refrigerator pipe seal head
31 and sealing ring 3 32 will be sealed at top refrigerator pipe 9 and 6 hollow wall of transmission shaft, prevent cooling gas from entering other channels;
Cooling air is entered in lower ones pipe 15 by top refrigerator pipe 9, then passes through the refrigerator pipe side of 15 bottom of lower ones pipe
Hole 46 enters in outlet passageway, in another road direction, by vertical channel 3 27, circular passage 3 26, is finally gone out by cooling air
Mouth 21 is discharged.Lower ones pipe 15 is rotated synchronously by the way that wing plate 2 42 and 14 card slot of stirring-head steel core are fixed, and top refrigerator pipe 9 is logical
The fixed synchronous rotation of wing plate 1, snap-gauge 35 and transmission shaft 6 is crossed, passes through sealing between lower ones pipe 15 and top refrigerator pipe 9
Enclose 5 41 progress static seals.On cooling gas outlet channel, the seam between transmission shaft 6 and key 12 is sealed up by sealing plate 1
Gap.
Finally it should be noted that these are only the preferred embodiment of the present invention, it is not intended to restrict the invention, although
Referring to embodiment, invention is explained in detail, for those skilled in the art, still can be to aforementioned
Technical solution documented by each embodiment is modified or equivalent replacement of some of the technical features, but it is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (10)
1. the agitating device that compound desulfurizing iron is stirred in a kind of coolable blowing, which is characterized in that including lifting frame, rotation
Drive system, transmission shaft, stirring-head, powder tracheae and refrigerator pipe, the lifting frame are driven by lift drive system, can be vertical
It goes up and down and locks on direction;The rotary drive system is installed on lifting frame, and can be gone up and down jointly with lifting frame;It is described
The driving end of rotary drive system is connected with the upper end of transmission shaft;The transmission shaft is arranged vertically, the lower end of transmission shaft and stirring
Head is connected, and stirring-head can be driven to rotate under the driving of rotary drive system;The transmission shaft and stirring-head are in inside
Hollow structure, the powder tracheae be coaxially arranged with the inside of refrigerator pipe, and the two is from transmission shaft inner shaft to extending to stirring-head
Interior bottom;The entrance of the powder tracheae is connected to the desulfurizing agent powder gas supply line of peripheral hardware, and the outlet of powder tracheae is in communication with the outside;
Gap between powder tracheae outer wall and cold air inside pipe wall formed inlet channel, cold air pipe outer wall and transmission shaft or stirring-head inner wall it
Between gap form outlet passageway, the bottom of inlet channel be connected to outlet passageway, and the upper outlet of outlet passageway and the external world
Connection.
2. the agitating device that compound desulfurizing iron is stirred in coolable blowing as described in claim 1, which is characterized in that described
Stirring-head includes blender steel core;The flange of blender steel core upper end is connected by half catcher with the lower end of transmission shaft, institute
It states powder tracheae and refrigerator pipe to penetrate from the upper end of transmission shaft, the coextensive lower end to blender steel core of the two and powder tracheae are from stirring
The lower end for mixing device is stretched out;The part outside that the lower part of blender steel core and powder tracheae stretch out blender steel core is coated with fire proofed wood
Expect, sets the powder gas exit passageway being connected to powder tracheae in refractory material, one end of powder gas exit passageway is connected to powder tracheae, powder gas
The other end of exit passageway is in communication with the outside;The lower end of the refrigerator pipe offers the side of connection inlet channel and outlet passageway
Hole.
3. the agitating device that compound desulfurizing iron is stirred in coolable blowing as claimed in claim 2, which is characterized in that under
The lower vertical of portion's powder tracheae is arranged symmetrically there are two powder gas exit passageway, and two powder gas exit passageways are formed with lower part powder tracheae
T-type channel, desulfurizing agent powder gas are sprayed by the two powder gas exit passageways.
4. the agitating device that compound desulfurizing iron is stirred in coolable blowing as claimed in claim 2, which is characterized in that cold air
Pipe includes top refrigerator pipe interconnected and lower ones pipe, and middle and upper part refrigerator pipe is set in transmission shaft, lower ones pipe
In blender steel core;The side opening of connection inlet channel and outlet passageway is provided in the bottom of lower ones pipe;It is cold on top
The junction encapsulation process of tracheae and lower ones pipe.
5. the agitating device that compound desulfurizing iron is stirred in coolable blowing as claimed in claim 4, which is characterized in that powder gas
Pipe includes connected top powder tracheae and lower part powder tracheae, and middle and upper part powder tracheae is set in the refrigerator pipe of top, lower part powder tracheae
It covers in lower ones pipe;The junction encapsulation process of powder tracheae and lower part powder tracheae on top.
6. the agitating device that compound desulfurizing iron is stirred in coolable blowing as claimed in claim 2, which is characterized in that described
Lifting frame is steel structure frame, is driven by lift drive system, can be required according to Desulphuring Process of Molten Iron, in vertical direction freedom
It goes up and down and locks, which is the prior art, is not repeated here.Upper layer steel is set along short transverse interval on lifting frame to put down
Platform, middle layer steel platform and lower layer's steel platform;The rotary drive system includes the rotation driving electricity being installed in the steel platform of upper layer
Machine, and the rotation driving speed reducer being installed in the steel platform of middle layer, motor shaft, the rotation driving speed reducer of rotary drive motor
Motor shaft and transmission shaft be sequentially connected.
7. the agitating device that compound desulfurizing iron is stirred in coolable blowing as claimed in claim 6, which is characterized in that described
Transmission shaft is hollow long-shaft type structure, is arranged vertically;Transmission shaft and the axis being respectively arranged in top chock and in step
Adaptation is held, and is supported by the two;Wherein, top chock is installed in lower layer's steel platform, and step is set in supporting steel pipe, branch
Support steel pipe is fixed on the bottom of lower layer's steel platform.
8. the agitating device that compound desulfurizing iron is stirred in coolable blowing as claimed in claim 7, which is characterized in that transmission
The top of axis is configured with slip ring, and the lower part of slip ring is connected with top chock;The lower end of transmission shaft is sheathed in half catcher and with half
Catcher key connection;The lower part of half catcher is connected by bolt with the upper end of blender steel core.
9. the agitating device that compound desulfurizing iron is stirred in coolable blowing as claimed in claim 8, which is characterized in that described
Slip ring is hollow cylinder type structure, and the inner sidewall of slip ring is spaced in the axial direction opens up top-down circular passage one, annular
Channel two and circular passage three, circular passage one, circular passage two and circular passage three are respectively corresponded equipped with powder gas entrance, cooling
Air intake, cooling air outlet;The vertical channel of the corresponding connection in each circular passage namely three respectively correspond vertically
Channel one, vertical channel two and vertical channel three, each vertical channel are spaced apart along short transverse and are set on transmission shaft;Powder gas enters
Mouth, circular passage one, vertical channel one, powder tracheae are sequentially communicated, cooling air intake, circular passage two, vertical channel
Two, inlet channel is sequentially communicated, and outlet passageway, vertical channel three, circular passage three, cooling air outlet successively connect
It is logical.
10. the agitating device that compound desulfurizing iron is stirred in coolable blowing as claimed in claim 9, which is characterized in that pass
Encapsulation process between each vertical channel on moving axis and the circular passage on slip ring.
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CN112029960A (en) * | 2020-08-31 | 2020-12-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Molten iron blowing stirring head and composite blowing method |
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CN108374070A (en) * | 2018-05-04 | 2018-08-07 | 北京京科名创工程技术有限公司 | It is blown injecting agitating device |
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