CN108374070A - It is blown injecting agitating device - Google Patents
It is blown injecting agitating device Download PDFInfo
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- CN108374070A CN108374070A CN201810421503.4A CN201810421503A CN108374070A CN 108374070 A CN108374070 A CN 108374070A CN 201810421503 A CN201810421503 A CN 201810421503A CN 108374070 A CN108374070 A CN 108374070A
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- China
- Prior art keywords
- agitating
- injection
- injecting
- shaft
- agitating shaft
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- 238000002347 injection Methods 0.000 claims abstract description 77
- 239000007924 injection Substances 0.000 claims abstract description 77
- 239000002516 radical scavenger Substances 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- 239000011819 refractory material Substances 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 86
- 229910052742 iron Inorganic materials 0.000 abstract description 43
- 238000003756 stirring Methods 0.000 abstract description 23
- 238000005516 engineering process Methods 0.000 abstract description 16
- 239000007921 spray Substances 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 25
- 239000002826 coolant Substances 0.000 description 20
- 238000006477 desulfuration reaction Methods 0.000 description 20
- 230000023556 desulfurization Effects 0.000 description 16
- 230000003009 desulfurizing effect Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000013019 agitation Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical compound [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 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
- C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
-
- 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
- C21C1/025—Agents used for dephosphorising or desulfurising
-
- 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
- C21C7/0645—Agents used for dephosphorising or desulfurising
Landscapes
- Chemical & Material Sciences (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 embodiment of the present invention discloses a kind of injection injecting agitating device, it includes agitating shaft, driving mechanism and the injection injecting agitating paddle for being connected to agitating shaft lower end, has the multiple medium channels being arranged successively from inside to outside in an axial direction on the shaft of agitating shaft and the agitating paddle being connect with its lower end；Medium channel on agitating shaft is identical as the medium channel quantity on agitating paddle, and corresponds connection, and centrally located medium channel forms injection mouth in the end of agitating paddle, for making scavenger be sprayed through the medium channel and injection mouth.The spray gun of injection technology is implanted into agitating shaft and agitating paddle by the present invention in the form of channels, eliminate the descending operation and lifting device of the spray gun in injection technology, allow injection with stirring two kinds of technology seamless combinations, have complementary advantages and simple to operation, vibration when can reduce stirring dynamics, reduce stirring, reduces waste residue amount, reduces environmental pollution, reduces the technical advantages such as production cost the loss for reducing molten iron temperature loss, reducing scavenger.
Description
Technical field
The present invention relates to one kind to pre-process for molten iron, completes the desulfurization of molten iron list or desulfurization, desiliconization and dephosphorization technology
A kind of agitating device, and in particular to injection injecting agitating device.Belong to metallurgy industry, metal smelt, external refining field.
Background technology
In steel plant in order to improve the quality of steel, need to remove the impurity such as sulphur, silicon, phosphorus in steel (iron) water.According to refining
The different flows and product of steel technique require the difference of ingredient, before molten iron enters the smelting of converter, carry out molten iron pretreatment.
Single desulfurization or desulfurization, desiliconization, the pretreatment of dephosphorization are carried out in pretreatment stage.Then sulphur phosphorus is further decreased in next process
Content.Molten iron pretreatment has become the essential processing step of smelting low-sulfur, low-phosphorous steel grade.Only by taking desulfurization as an example：
KR methods --- the two kinds of techniques of mechanical agitation desulfuration method and blowing desulfurization method having in country's STEELMAKING PRODUCTION flow at present.
Desulfurization by injecting method is that spray gun is inserted into molten iron, and desulfurizing agent, which is injected molten iron, by the spout on spray gun carries out desulfurization.
Since this method is short of power, in order to complete desulfurization degree within the limited time, and the quantity of slag is controlled, often uses magnesium metal (magnesium powder
Or magnesium grain) desulfurizing agent is made, Mg storages, transport need to be explosion-proof, and of high cost and safety is poor.
Using pulverized limestone as desulfurizing agent, pulverized limestone is added on molten iron surface mechanical mixing method by when desulfurization, is generated by stirring
Desulfurizing agent is involved in inside molten iron by vortex carries out desulphurization reaction.This design principle makes desulfuration efficiency depend on stirring intensity,
Speed of agitator is thus improved to reinforce stirring intensity just into the only resource for improving desulfuration efficiency in production.Mechanical mixing method
Important function is to improve the dynamic conditions of sweetening process, makes it with respect to desulfuration efficiency is improved for blowing process, substantially in fact
The target for reaching high-efficiency desulfurization with the cheap desulfurizing agent of relative price is showed.Thus used by more and more users.
It is exactly that temperature drop is bigger that mechanical mixing method, which compares a critical weakness with blowing process, and scavenger utilization rate is relatively
It is low.Temperature drop degree in mechanical agitation process is closely related with mixing speed, and mixing speed is faster, and molten iron heat dissipation is also faster.
Desulfurizing agent is sprinkled into molten iron level from elephant trunk, and in dropping process, a part of fines are taken away by dust pelletizing system so that desulfurizing agent
Dust pelletizing system needs to reduce air quantity to reduce the quantity that desulfurizing agent fine grained is pumped during charging, this just affects dedusting effect
Fruit；Desulfurizing agent is sprinkling upon molten iron level, always has desulfurizing agent to cannot be introduced into molten iron and participates in reaction.It is pumped, do not enter the desulfurization of molten iron
Agent is the main reason for sorbent utilization is relatively low.
In conclusion be blown has respective scarce limit and deficiency with stirring both of which.Seek a kind of new molten iron in advance to locate
Science and engineering skill is always what industry was made great efforts to reach high efficiency, low consumption and energy-saving and environment-friendly desulfurization, desiliconization and dephosphorization purpose
Target.
Invention content
In view of the above-mentioned problems in the prior art, technical problem to be solved by the invention is to provide a kind of removing effects
The high and low energy consumption of rate and the injection injecting agitating device of environmental protection.
In order to solve the above-mentioned technical problem, present invention employs following technical solutions：
It is blown injecting agitating device, including agitating shaft, the driving mechanism for driving the agitating shaft rotation and connection
Agitating paddle in the agitating shaft lower end, it is characterised in that：
The agitating shaft is axially formed the multiple medium channels being arranged successively from inside to outside along it；
The shaft upper edge of the agitating paddle its be axially formed be arranged successively from inside to outside multiple and stir medium channel；
Wherein, the medium channel on the agitating shaft is identical as the medium channel quantity on the agitating paddle and corresponds
Connection, and centrally located medium channel forms injection mouth in the end of the agitating paddle, for making scavenger by through being located at
It is sprayed through the injection mouth after the medium channel at center.
Preferably, the medium channel on the agitating shaft is three and is arranged concentrically.
Preferably, the medium channel on the agitating paddle is three and is arranged concentrically.
Preferably, the driving mechanism includes motor and retarder, and the motor is passed by retarder and the agitating shaft
Dynamic connection；The retarder is the parallel shaft (speed) reducer that output shaft is hollow shaft, so that the output shaft of the motor is stirred with described
Mix that axis is parallel and decentraction；And ensure that the shaft end of agitating shaft can be connect by rotary joint with injecting pipe.
Preferably, it is enclosed with refractory material outside the agitating paddle.
Preferably, the injection injecting agitating device further includes elevator car and the four columns guide rail in matrix arrangements,
The elevator car is set in four column guide rails and can be moved up and down along the column guide rail；The driving mechanism and
Agitating shaft is assembled on the elevator car, and can be moved up and down under the drive of the elevator car.
Preferably, the injection injecting agitating device further includes rotary joint, the output end of the rotary joint have with
The one-to-one medium road of medium channel on the input terminal of the agitating shaft.
Preferably, the injection injecting agitating device further includes the injecting hose being connected on the rotary joint, described
Injecting hose is connected to the medium channel at the center of the rotary joint, with by the rotary joint into the agitating shaft
Scavenger is injected in the medium channel of the heart.
Preferably, the injecting hose is provided at both ends with the wear-resistant elbow of anti-attrition.
Compared with prior art, the advantageous effect of injection injecting agitating device of the invention is：
1, two kinds of routine techniques of mechanical agitation and injection of present invention fusion molten iron pretreatment now generally use, will be blown
The spray gun of technology is implanted into the agitating shaft and agitating paddle of mechanical stirring device in the form of channels, eliminates the spray in injection technology
The descending operation and lifting device of rifle, allow injection and stirring two kinds of technology seamless combinations, have complementary advantages and it is simple to operation, formed one
The molten iron pretreatment mode that the completely new injection of kind is combined with stirring.
2, the advantages of injection injecting agitating device of the invention has given full play to traditional injection and mechanical agitation methods, overcomes
The respective deficiency of conventional method.To solve, existing desiliconization of hot metal dephosphorization technology long processing period, pollution and hot metal temperature drop are big to ask
Topic, provides feasible, advantageous technical support.
3, since the present invention can be transformed on tradition machinery agitating device, it can be real with smaller investment
Now to the transformation of existing molten iron preprocessing unit.That is the present invention has extensive industrial utilization.
Description of the drawings
Fig. 1 is the structural schematic diagram of the injection injecting agitating device of the embodiment of the present invention.
Fig. 2 is the enlarged drawing of part A in Fig. 1.
Fig. 3 is the enlarged drawing of part B in Fig. 1.
Fig. 4 is that the injection injecting agitating device of the embodiment of the present invention is used for the schematic diagram of single desulphurization system.
Fig. 5 is that the injection injecting agitating device of the embodiment of the present invention takes off the signal of system for desulfurization, desiliconization, dephosphorization three
Figure.
Reference sign
1- agitating shafts；2- agitating paddles；3- is blown injecting channel；4- coolants enter channel；5- coolant passing aways；6-
It is blown mouth；7- motors；8- hollow output shafts；9- retarders；10- refractory materials；11- elevator cars；12- column guide rails；13- revolves
Adapter；14- coolant inlet ports；15- coolant outlets；16- injecting hoses；The wear-resistant elbow of 17- anti-attritions；18- hot-metal bottles；
19- injection tanks；20- scavengers storehouse.
Specific implementation mode
Present invention is further described in detail in the following with reference to the drawings and specific embodiments, but not as the limit to the present invention
It is fixed.
A kind of injection injecting agitating device disclosed by the embodiments of the present invention can be applied to molten iron and pre-process, such as molten iron
The pretreatments such as desulfurization, desiliconization, dephosphorization, the following examples will be illustrated for being applied to molten iron pretreatment.
As shown in Figure 1 to Figure 3, the injection injecting agitating device of the embodiment of the present invention comprising agitating shaft 1, for driving
The driving mechanism of the rotation of agitating shaft 1 and the agitating paddle 2 for being connected to 1 lower end of agitating shaft, agitating shaft 1 have been axially formed along it from interior
To the multiple medium channels being arranged successively outside；The shaft upper edge of agitating paddle 2 its be axially formed be arranged successively from inside to outside it is more
A medium channel；Wherein, the medium channel on agitating shaft 1 is identical as the medium channel quantity on agitating paddle 2 and the company of one-to-one correspondence
It is logical, and centrally located medium channel forms injection mouth 6 in the end of agitating paddle 2, for make scavenger (such as desulfurizing agent,
Desiliconization agent and/or Dephosphorising agent) it is sprayed by two centrally located medium channels and through being blown mouth 6.
The injection injecting agitating device of the embodiment of the present invention is multiple logical by being implanted into respectively in agitating shaft 1 and agitating paddle 2
Road, that is, injection technique is implanted into the center of the core component agitating shaft 1 of stirring technique, stirring and material feeding are imparted to agitating paddle 2
Dual function maintains the simple and reliable and simple operation of apparatus structure to greatest extent.To realize injection injecting and machinery
Stirring is combined to be formed for the pretreated new process of molten iron.Injection technique is introduced agitating device by the embodiment of the present invention, makes to stir
Mix the loss that scavenger is greatly lowered in device；Scavenger is directly injected into 18 bottom of hot-metal bottle and is stirred using agitating paddle 2, removing
Agent is contacted with molten iron to be increased with exchange time, the sufficiently effective removal efficiency for improving scavenger, when shortening molten iron pretreatment
Between, reduce molten iron temperature loss.
In one embodiment, as depicted in figs. 1 and 2, three medium channel entrances are arranged in 1 upper surface of agitating shaft altogether, and
Three medium channels are arranged concentrically, and are followed successively by injection injecting channel 3 from inside to outside, cooling medium enters channel 4 and cooling Jie
Matter passing away 5, cooling medium can be selected according to actual needs, and the cooling medium in the present embodiment uses compressed air, cold
But medium enters channel 4 and cooling medium passing away 5 and may be respectively referred to as that cooling air enters channel and cooling air discharge is logical
Road.
In one embodiment, three medium channels also are provided on agitating paddle 2, and three medium channels are in set with one heart
It sets, is followed successively by injection injecting channel 3 from inside to outside, cooling medium enters channel 4 and cooling medium passing away 5.
Above-mentioned cooling medium enters channel 4 and is used to be passed through cooling medium, to be cooled down to agitating shaft 1 and agitating paddle 2,
Cooling medium after cooling is discharged from cooling medium passing away 5.In the present embodiment, combines to simplify, to be conveniently operated, stir
Three on axis 1 medium channels are mixed to be arranged in a one-to-one correspondence and be connected to respectively from inside to outside with three medium channels on agitating paddle 2.
At this time, it is only necessary to one cooling medium inlet port 14 of setting and a cooling medium outlet 15 jointly.
In one embodiment, as shown in figures 1 and 3, driving mechanism includes motor 7 and retarder 9, and motor 7 is by subtracting
Fast device 9 is sequentially connected with agitating shaft 1；The retarder 9 of the present embodiment is parallel shaft (speed) reducer 9, that is, the hollow output of retarder 9
Axis 8 is parallel with input shaft, so that motor 7 is parallel with agitating shaft 1 and decentraction, referring to Fig. 3, to make motor 7 deviate agitating shaft
1, the space of 1 top of agitating shaft is conceded, it is convenient that scavenger is injected into injection injecting channel 3 from the upper end of agitating shaft 1, so that removing
Agent can smoothly flow through injection injecting channel 3 and be sprayed into molten iron through being blown mouth 6, that is, be blown the upper end perforation in injecting channel 3
To the upper end of agitating shaft 1.
In order to improve the service life of agitating paddle 2, prevent high temperature liquid iron from being damaged to agitating paddle 2, the present embodiment stirs
The outside for mixing paddle 2 is enclosed with refractory material 10.It is protected simultaneously with refractory material 10 by mouth 6 is blown in the end (bottom) of agitating paddle 2
Shield is got up, to prevent injection mouth 6 by high temperature corrode.
In one embodiment of the invention, as shown in Figure 1, injection injecting agitating device further includes elevator car 11 and is in
The four columns guide rail 12 of matrix arrangements, elevator car 11 are set in four columns guide rail 12 and can be along about 12 column guide rails
It is mobile；Driving mechanism and agitating shaft 1 are assembled on elevator car 11, and can under the drive of elevator car 11 on move down
It is dynamic, so that agitating shaft 1 can drive agitating paddle 2 to move up and down, and it is inserted into molten iron, and proposed from molten iron.
In one embodiment of the invention, as shown in figures 1 and 3, injection injecting agitating device further includes rotary joint
13, have in rotary joint 13 to be arranged and correspond with three medium channels on agitating shaft 1 successively from inside to outside and is connected to
Three medium channels.Centrally located medium channel is through type channel, for being passed through scavenger, is located at two media in outside
Channel is using radially by the way of, one of them is for being passed through cooling medium, another is used to that cooling medium to be discharged, and in diameter
It is respectively formed cooling medium inlet port 14 and cooling medium outlet 15 upwards.
It should be noted that：Three medium channels on agitating shaft 1 can enter axially into agitating shaft 1 all from shaft end；
Can two medium channels enter axially into agitating shaft 1 from shaft end, another medium channel is near shaft end, radially into stirring
Mix axis 1；Agitating shaft 1 can be entered axially into from shaft end with the centrally located medium channel of only one, and other two medium is (cold
But) channel near shaft end radially into agitating shaft.Above-mentioned each medium channel runs through the lower end of agitating shaft.Three of the above feelings
The medium channel of disengaging cooling air on the agitating shaft of condition is obstructed, needs to cool back by agitating paddle (connection) formation
Road.
In addition, rotary joint 13 is in addition to that can have, there are three except in the case of medium channel, can also only have, there are one media
Channel or two medium channels；When three medium channels of agitating shaft all enter axially into agitating shaft 1 from shaft end, can select
There are three the rotary joints 13 of medium channel for tool；When two medium channels of agitating shaft 1 enter axially into agitating shaft 1 from shaft end,
And another medium channel near shaft end radially into agitating shaft 1 when, the rotation with two medium channels can be selected
Adapter 13；When a medium channel of agitating shaft 1 enters axially into agitating shaft 1 from shaft end, and other two medium channel from
When near shaft end radially into agitating shaft 1, can selecting tool, there are one the rotary joints 13 of medium channel.
Continuing with Fig. 1, in one embodiment, injection injecting agitating device further includes being connected on rotary joint 13
Injecting hose 16, injecting hose 16 are connected to the centrally located medium channel of rotary joint 13, with by rotary joint 13 to
It is passed through scavenger in injection injecting channel 3.In order to facilitate hose conversion direction as needed, 16 both ends of injecting hose and injection
19 output end of tank to 13 each corner of injecting entrance material delivery pipe of rotary joint is both provided with the wear-resistant elbow of anti-attrition 17.
The spray gun of injection technology is implanted into agitating shaft 1 by the injection injecting agitating device of the embodiment of the present invention in the form of channels
In agitating paddle 2, eliminate the descending operation and lifting device of the spray gun in injection technology, allow injection and stirring two kinds of technologies without
Seam combines, and has complementary advantages and simple to operation, forms a kind of molten iron pretreatment mode that completely new injection is combined with stirring.Its profit
The direct spray of scavenger is entered in molten iron with injection technology, there is whole No leakage, the few advantage of environmental pollution；Mechanical agitation
Technology can be that good dynamic conditions is created in molten iron pretreatment, and cheap scavenger can be used, realize ideal removing
Effect.Therefore, there is the stirring dynamics that can reduce, vibration when reducing stirring, reduce molten iron temperature loss, reduce scavenger
Loss reduces waste residue amount, reduces numerous technical advantages such as production cost.
In addition, the injection injecting agitating device of the embodiment of the present invention has annotated the promotion to traditional hot metal pretreatment technology
With it is perfect.To solve the problems, such as that existing desiliconization of hot metal, dephosphorization technology long processing period, pollution and hot metal temperature drop are big, providing can
Capable, necessary technical support.
The injection injecting agitating device of the embodiment of the present invention both can be applied to single de- system, i.e., only removes a kind of impurity,
It can also be applied to mostly de- system, you can simultaneously or separately remove plurality of impurities (such as separately or concurrently removing sulphur, silicon or phosphorus).
As shown in figure 4, the case where being used for single desulphurization system it illustrates the injection injecting agitating device of the embodiment of the present invention,
Further include scavenger feeding system other than the injection injecting agitating device including the embodiment of the present invention in this singly de- system,
Scavenger feeding system includes that an injection tank 19 and a scavenger storehouse 20, injection tank 19 connect with injecting hose 16, be used for
The conveying high-pressure scavenger into injecting hose 16, scavenger storehouse 20 are connect with injection tank 19 for providing removing for injection tank 19
Agent.
As shown in figure 5, it illustrates the injection injecting agitating devices of the embodiment of the present invention for desulfurization, desiliconization, dephosphorization three
The case where de- system, shows three injection tanks 19 and connects one to one with three injection tanks 19 in the three de- system
Three scavenger storehouses 20, to provide three kinds of different scavengers, three injection tanks 19 into three different injection tanks 19 respectively
It is connect respectively with injecting hose 16, three kinds of scavengers in three injection tanks 19 can be delivered to injecting hose 16 simultaneously, and
It is brought together by injecting hose 16 and is injected in molten iron through being blown injecting channel 3 again, to realize that three removings of molten iron pre-process.
It is of course also possible to as needed, the valve of wherein one or two injection tank 19 is selectively turned on, it is defeated into injecting hose 16
One or two kinds of scavengers are sent, and realize that molten iron list is de- or double de- pretreatments.
The embodiment of the present invention is when carrying out removing operation, referring to Fig. 1, Fig. 4 and Fig. 5, first declines elevator car 11, lifting
Car 11 drives agitating shaft 1 and agitating paddle 2 to decline together, stirring slurry is inserted into the molten iron of hot-metal bottle 18, and agitating paddle 2 enters iron
Start to be blown before water, agitating paddle 2 starts injecting and stirring after entering molten iron.After agitating paddle 2 is inserted into designated depth, sedan-chair is lifted
Compartment 11 stops declining.Stopping is stirred after the completion of injection injecting, elevator car 11 rises to be blown after the proposition molten iron of agitating paddle 2 and stop
Only, that is, the removing pretreatment of a molten iron is completed.
The representative embodiment of the present invention has obtained detailed description.These detailed descriptions are not used in the model to the present invention
It encloses and is limited.Those skilled in the art can make various modifications to the present invention within the spirit and scope of the present invention
Or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.Therefore, it is retouched in detail aforementioned
The combination for the feature stated is not necessary for implementing the present invention in most broad range, and alternatively only to this hair
The bright representative embodiment being especially described in detail provides introduction.In addition, in order to obtain the additional useful embodiment of the present invention,
A variety of different features of introduction are provided in specification to be combined in several ways, however these modes are not particularly by example
It enumerates and.
Claims (9)
1. be blown injecting agitating device, including agitating shaft (1), for drive the agitating shaft (1) rotate driving mechanism and
It is connected to the agitating paddle (2) of the agitating shaft (1) lower end, it is characterised in that：
The agitating shaft (1) is axially formed the multiple medium channels being arranged successively from inside to outside along it；
The shaft upper edge of the agitating paddle (2) its be axially formed the multiple medium channels being arranged successively from inside to outside；
Wherein, the medium channel on the agitating shaft (1) is identical as the medium channel quantity on the agitating paddle (2), and one by one
Corresponding connection, and centrally located medium channel forms injection mouth (6) in the end of the agitating paddle (2), for making removing
Agent through the injection mouth (6) by after centrally located medium channel, spraying.
2. injection injecting agitating device according to claim 1, which is characterized in that the medium on the agitating shaft (1) is logical
Road is three, and is arranged concentrically.
3. injection injecting agitating device according to claim 2, which is characterized in that the medium on the agitating paddle (2) is logical
Road is three, and is arranged concentrically.
4. injection injecting agitating device according to any one of claim 1 to 3, which is characterized in that the driving mechanism
Including motor (7) and retarder (9), the motor (7) is sequentially connected by retarder (9) and the agitating shaft (1)；It is described to subtract
Fast device (9) is parallel shaft (speed) reducer (9), so that the motor (7) is parallel with the agitating shaft (1) and decentraction.
5. injection injecting agitating device according to any one of claim 1 to 3, which is characterized in that the agitating paddle (2)
Outside be enclosed with refractory material (10).
6. injection injecting agitating device according to any one of claim 1 to 3, which is characterized in that the injection injecting
Agitating device further includes elevator car (11) and the four columns guide rail (12) in matrix arrangements, elevator car (11) setting
It can move up and down in column guide rail described in Yu Sigen (12) and along the column guide rail (12)；The driving mechanism and agitating shaft
(1) it is assembled on the elevator car (11), and can be moved up and down under the drive of the elevator car (11).
7. injection injecting agitating device according to claim 3, which is characterized in that the injection injecting agitating device also wraps
Rotary joint (13) is included, the output end of the rotary joint (13) has to be led to the medium on the input terminal of the agitating shaft (1)
The corresponding medium channel in road.
8. injection injecting agitating device according to claim 7, which is characterized in that the injection injecting agitating device also wraps
Include the injecting hose (16) being connected on the rotary joint (13), the injecting hose (16) on the rotary joint (13)
Center the medium channel connection, with centrally located Jie by the rotary joint (13) to the agitating shaft (1)
Matter is passed through scavenger in channel.
9. injection injecting agitating device according to claim 8, which is characterized in that injecting hose (16) the both ends setting
There is the wear-resistant elbow of anti-attrition (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810421503.4A CN108374070A (en) | 2018-05-04 | 2018-05-04 | It is blown injecting agitating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810421503.4A CN108374070A (en) | 2018-05-04 | 2018-05-04 | It is blown injecting agitating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108374070A true CN108374070A (en) | 2018-08-07 |
Family
ID=63033292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810421503.4A Pending CN108374070A (en) | 2018-05-04 | 2018-05-04 | It is blown injecting agitating device |
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| Country | Link |
|---|---|
| CN (1) | CN108374070A (en) |
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| CN110042201A (en) * | 2019-05-15 | 2019-07-23 | 中冶南方工程技术有限公司 | The agitating device of compound desulfurizing iron is stirred in a kind of coolable blowing |
| CN110055368A (en) * | 2019-05-15 | 2019-07-26 | 中冶南方工程技术有限公司 | The agitating device of compound desulfurizing iron is stirred in a kind of blowing |
| CN110643776A (en) * | 2019-09-29 | 2020-01-03 | 武汉钢铁有限公司 | Sealed follow-up powder conveying device |
| CN110665711A (en) * | 2019-11-20 | 2020-01-10 | 广州百海工程机械有限公司 | High efficiency spraying device |
| WO2024108878A1 (en) * | 2022-11-23 | 2024-05-30 | 华北理工大学 | Moveable hot metal desiliconization and dephosphorization process |
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