CN102230749B - Aluminum solution stirring device of air-cooled composite magnetic field - Google Patents
Aluminum solution stirring device of air-cooled composite magnetic field Download PDFInfo
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- CN102230749B CN102230749B CN 201110183284 CN201110183284A CN102230749B CN 102230749 B CN102230749 B CN 102230749B CN 201110183284 CN201110183284 CN 201110183284 CN 201110183284 A CN201110183284 A CN 201110183284A CN 102230749 B CN102230749 B CN 102230749B
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Abstract
The invention discloses an aluminum solution stirring device of an air-cooled composite magnetic field. The aluminum solution stirring device comprises a rotating shaft which is vertically arranged on a frame, wherein the bottom end of the rotating shaft is connected with a power device; a magnetic yoke of which the upper plane inclines outwards is arranged at the upper end of the rotating shaft; at least two grid-type direct-current coils which are annularly distributed uniformly at intervals and are vertical to the upper plane are arranged on the upper plane; an iron core is arranged in each grid-type direct-current coil; the equidirectional ends of every two adjacent iron cores have opposite polarities; a high-temperature-resistant permanent magnet of which the polarity is repellent to that of the upper end of each iron core is arranged between every two grid-type direct-current coils; the outer side of each grid-type direct-current coil is provided with an air cooling device; and a non-magnetic outer cover is arranged above the frame. The stirring device disclosed by the invention has a large acting range on an aluminum solution in an aluminum smelting furnace under the action of a composite magnetic field formed by the coaction between an electromagnetic field and a permanently-magnetic field; the height and the intensity of a magnetic line of force are enhanced; and the aluminum solution stirring device has large permeation depth on the aluminum solution, large magnetic field force, large stirring force, high efficiency for stirring and a wide application range.
Description
Technical field
The present invention relates to the contactless mixing plant technical field in the aluminium melting, specifically, be mounted in the aluminum solutions agitating device of a kind of air-cooled resultant field that uses the aluminium melting furnace bottom.
Background technology
In the aluminium fusion process, after accelerating burn-off rate and adding alloy, make its alloying component even, need the aluminium liquid in the smelting furnace regularly be stirred.The contactless alr mode that is adopted at present has: AC excitation stirs, permanent magnetism stirs and DC excitation stirs.It is to utilize the parallel placement of a plurality of coils that AC excitation stirs; Adopting periodic current phase difference mode to make it form travelling-magnetic-field implements to stir to aluminium liquid; The problem that this alr mode exists is: power consumption is big, and 30 tons of aluminium smelting furnaces are used the AC excitation agitator, per hour wants 250 kilowatts～315 kilowatts of power consumptions; And mechanism is complicated, and fault rate is high.Permanent magnetism stirs owing to adopt a large amount of fire resistant magnetic materials; Though power consumption has only 1/10th to 1/15th of AC excitation stirring, many rare metals are contained in magnetic material inside, belong to the rare earth material of state control exploitation; Cost an arm and a leg; Compare with the AC excitation stirring with tonnage, cost is about more than the twice of AC excitation stirring, has limited its development to a certain extent.The DC excitation agitator; Adopt the form of the parallel discharging of dc coil; The centre does not have the magnetic pole that repels each other, and the magnetic line of force constitutes shortest cycle, though power consumption has only about 1/10th of AC excitation agitator; But magnetic field radiation area, the degree of depth and intensity are all less, and the amount of stirring scope and stirring aluminum solutions is little; And because dc coil adopts solid coiling and cooling naturally, the coil heat radiation is slow, and it is overheated to be prone to, and the magnetic attenuation is big, and exciting power is unfit to do greatly, uses narrow in application range in the time of can only being applicable to small-sized smelting furnace and thin furnace bottom.
Summary of the invention
Technical problem to be solved by this invention is: provide that a kind of sphere of action to aluminum solutions is big, penetration capacity is strong, mixing effect good, the aluminum solutions agitating device of air-cooled resultant field energy-efficient, with low cost.
For solving the problems of the technologies described above; Technical scheme of the present invention is: a kind of aluminum solutions agitating device of air-cooled resultant field; Comprise the chassis, and be installed in the frame on the chassis, turning cylinder vertically is installed on the said frame; The bottom of said turning cylinder connects the power set that drive its rotation, and said power set are controlled by the control system; The upper end of said turning cylinder is equipped with yoke; Said yoke has outward-dipping last plane; Said going up on the plane is equipped with at least two perpendicular grating type dc coils, and said grating type dc coil is equipped with iron core in each grating type dc coil in the form of a ring uniformly at intervals; The polarity of end in the same way of two adjacent iron cores is opposite, and the fire resistant permanent magnet with each iron core upper end polar repulsion is installed between the said grating type dc coil; Said frame top is also installed and is had or not the magnetic outer cover, and described yoke, grating type dc coil, iron core and fire resistant permanent magnet all are arranged in the inner chamber of said no magnetic outer cover; The outside of said grating type dc coil also is provided with the air cooling equipment that is used for its radiating and cooling.
As optimized technical scheme, low " one " font, " ten " font or " rice " font in high outer end in the middle of said yoke is.
As optimized technical scheme, said grating type dc coil is two, four or eight; Said grating type dc coil is stretched out in the upper end of said iron core, and the formation emitter stage stretches out.
As optimized technical scheme, said grating type dc coil is the multilayer circulus, is separated with the high-temperature insulation filler strip between layer and the layer, and said high-temperature insulation filler strip interleaved is spaced.
As optimized technical scheme, the outside of said grating type dc coil also is provided with magnetic conductive board, and said magnetic conductive board is installed in the outer end of said yoke.
As optimized technical scheme, said air cooling equipment comprises blower fan, and said blower fan is arranged in the no magnetic outer cover inner chamber; It is outside perhaps to be arranged on no magnetic outer cover, and dries or air draught to said grating type dc coil through outside airduct.
As optimized technical scheme, at least two conducting slip rings are installed on the said turning cylinder; Said turning cylinder is a quill shaft, is installed with lead in the cavity of said turning cylinder, and an end of said lead is electrically connected with said grating type dc coil and blower fan respectively, and the other end of said lead is electrically connected with said conducting slip ring respectively.
As optimized technical scheme, also be provided with temperature measuring equipment on the said no magnetic outer cover.
As optimized technical scheme, said power set comprise frequency modulation motor, and the reductor that is connected with the output of said frequency modulation motor; The output of said reductor connects the bottom of said turning cylinder.
As optimized technical scheme, said agitating device also is provided with walking mechanism and arrangement for adjusting height.
Owing to adopted technique scheme, the invention has the beneficial effects as follows: when air-cooled resultant field aluminum solutions agitating device of the present invention uses, be installed on the guide rail in the aluminium smelting furnace lower passage and press close to the furnace bottom lower plane.Because agitating device of the present invention vertically is equipped with the turning cylinder that is driven by power set on frame; The upper end of turning cylinder is equipped with the outward-dipping yoke in plane; Said at least two the perpendicular grating type dc coils that are equipped with on the plane in the form of a ring uniformly at intervals of going up; In each grating type dc coil iron core is installed, and the polarity of end in the same way of two adjacent iron cores is opposite; Fire resistant permanent magnet with each iron core upper end polar repulsion is installed between the grating type dc coil of arranging in the form of a ring; The outside of grating type dc coil is provided with air cooling equipment.During work; Pass to direct current to the grating type dc coil and outwards launch magnetic field, constitute magnetic loop between the iron core of grating type dc coil and installation in it, because the last plane of yoke is outward-dipping; Grating type dc coil and iron core all with vertical installation the in last plane of yoke; Therefore, the magnetic loop that is constituted is also outward-dipping, thereby has increased the sphere of action to aluminum solutions in the aluminium smelting furnace.Because the fire resistant permanent magnet with each iron core upper end polar repulsion is installed between the grating type dc coil of arranging in the form of a ring; The permanent magnetic field that fire resistant permanent magnet produced produces a kind of repulsive force to the magnetic loop that constitutes between grating type dc coil and the iron core; On the one hand this magnetic loop is squeezed; Further outwards skew, thus sphere of action further increased to aluminum solutions in the aluminium smelting furnace; Simultaneously; There is mutual repulsive force between the permanent magnetic field that electromagnetic field and fire resistant permanent magnet produced that forms between grating type dc coil and the iron core; This repulsive force is all strengthened the height of the magnetic line of force and intensity, and the magnetic field force of equal height is big more, and its mixing power is also big more; Help penetrating thicker aluminium smelting furnace bottom refractory material, increase penetration depth aluminum solutions.
The magnetic-inductive device of being made up of grating type dc coil, iron core and fire resistant permanent magnet is under the turning cylinder that is driven by power set drives; The motor that is equivalent to the very big use D.C. magnetic field of air gap; Magnetic-inductive device is equivalent to the stator of motor; Aluminum melt is equivalent to the rotor of motor, and being interacted by the aluminum melt in electromagnetic field and formed resultant field of permanent magnetic field and the smelting furnace produces induced potential and induced current, and this induced current produces electromagnetic force with the magnetic field effect again; Thereby promote aluminum melt and do directed moving, play stirring action.
Temperature is low more, and the decay of magnetic field force is more little, can produce a large amount of heat during owing to the dc coil excited work; Influence magnetic field intensity and insulation degree; Adopt the air blast cooling of grating type dc coil, make the coil inside quick heat radiating, in the temperature range of regulation, work to guarantee coil.
Production practices prove: compare with conventional dc excitation agitator; Under the power consumption same case; Air-cooled resultant field aluminum solutions agitating device of the present invention can improve the magnetic field degree of depth more than 30%, and totle drilling cost increases less than 5%, and labor aptitude is strong; Applied range can be suitable for the contactless stirring of medium-sized aluminium smelting furnace.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Fig. 1 is that the structure of the embodiment of the invention is analysed and observe the main sketch map of looking;
Fig. 2 removes the field structure cross-sectional schematic of overlooking behind the molten aluminium stove among Fig. 1;
Fig. 3 is the structural representation of grating type dc coil;
Fig. 4 is the horizontal cross-sectional schematic of grating type dc coil;
Fig. 5 is the schematic top plan view when four grating type dc coils are set;
Be magnetic line of force trend among Fig. 1 and Fig. 5 shown in the arrow; Be the cooling air trend among Fig. 2 and Fig. 4 shown in the arrow;
Among the figure: the 1-roller; The 2-chassis; 3-coil slip ring; The 4-upper bearing (metal); The 5-frame; The 6-turning cylinder; The 7-yoke; The 8-magnetic conductive board; 9-grating type dc coil; The 10-iron core; The 11-temperature measuring equipment; 12-controls system; 13-does not have the magnetic outer cover; The 14-fire resistant permanent magnet; The 15-holder; 16-blower fan slip ring; The 17-frequency modulation motor; The 18-reductor; The 19-lower bearing; 20-moves reductor; The 21-driving-chain; 22-melts the aluminium stove; The 23-blower fan; The 24-wind scooper; 25-high-temperature insulation filler strip.
The specific embodiment
As shown in Figure 1; A kind of aluminum solutions agitating device of air-cooled resultant field; Comprise chassis 2, and be installed in the frame 5 on the chassis 2 that turning cylinder 6 vertically is installed on the frame 5 through upper bearing (metal) 4 and lower bearing 19; The bottom of turning cylinder 6 connects the power set that drive its rotation, and said power set are controlled by control system 12; The upper end of said turning cylinder 6 is equipped with yoke 7; Said yoke 7 has outward-dipping last plane, and said going up on the plane is equipped with at least two perpendicular grating type dc coils 9, and said grating type dc coil 9 in the form of a ring uniformly at intervals; In each grating type dc coil 9 iron core 10 is installed; The polarity of end in the same way of two adjacent iron cores 10 is opposite, and the permanent magnet 14 with each iron core 10 upper end polar repulsions is installed between a plurality of said grating type dc coils 9, and said fire resistant permanent magnet 14 is connected with yoke 7 installations through holder 15; As shown in Figure 2, said fire resistant permanent magnet 14 is made up of the little fire resistant permanent magnet of polylith; Frame 5 tops are also installed and are had or not magnetic outer cover 13, and described yoke 7, grating type dc coil 9, iron core 10 and fire resistant permanent magnet 14 all are arranged in the inner chamber of said no magnetic outer cover 13; The outside of said grating type dc coil 9 also is provided with the air cooling equipment that is used for its radiating and cooling.
As depicted in figs. 1 and 2, in the present embodiment, low " one " font in high outer end in the middle of said yoke 7 is correspondingly, has two grating type dc coils 9, and each arm that is the yoke 7 of " one " font is provided with a grating type dc coil 9.Certainly, according to demand of practical production, said yoke 7 can also be middle high outer end low " ten " font, and is as shown in Figure 4, correspondingly, four grating type dc coils arranged, and each arm that is the yoke 7 of " ten " font is provided with a grating type dc coil 9.Said yoke 7 can also be middle high outer end low " rice " font, correspondingly, eight grating type dc coils is arranged.Perhaps as required, said yoke 7 can be provided with more a plurality of arms.
In the present embodiment, said grating type dc coil 9 is stretched out in the upper end of said iron core 10, and the formation emitter stage that stretches out, and iron core 10 stretches out a part, and emission magnetic field is effective.
Like Fig. 2, Fig. 3 and shown in Figure 4, in the present embodiment, said grating type dc coil 9 is the multilayer circulus, is separated with high-temperature insulation filler strip 25 between layer and the layer, and said high-temperature insulation filler strip 25 interleaved are spaced.Adopt the grating type dc coil 9 of this version, owing to adjacent be separated out the gap by high-temperature insulation filler strip 25 between two-layer, therefore every layer line circle cooling of can both ventilating makes the coil inside quick heat radiating, guarantees that coil works in the temperature range of stipulating; Be the trend of cooling air among Fig. 2 and Fig. 4 shown in the arrow, the spaced high-temperature insulation filler strip 25 of interleaved helps wind-guiding; Avoid intercepting flowing of cold wind; Cold wind gets into grating type dc coil 9 from a side, behind the circuitous high-temperature insulation filler strip 25 of flowing through, flows out from opposite side.
In the present embodiment, the outside of said grating type dc coil 9 also is provided with magnetic conductive board 8, and said magnetic conductive board 8 is installed in the outer end of said yoke 7, also with vertical installation the in last plane of yoke 7, magnetic conductive board 8 is set can reduces leakage field, guarantees enough magnetic field forces and mixing power.
As shown in Figure 2, in the present embodiment, said air cooling equipment comprises blower fan 23, and said blower fan 23 is arranged in no magnetic outer cover 13 inner chambers, and dries or air draughts to grating type dc coil 9 through wind scooper 24, and said blower fan 23 together turns round with turning cylinder 6 with wind scooper 24.Certainly, also can blower fan be arranged on the outside of no magnetic outer cover 13, dry or air draughts to said grating type dc coil 9 through outside airduct.
As shown in Figure 1, in the present embodiment, said turning cylinder 6 is a quill shaft, and the bottom of said turning cylinder 6 is equipped with two conducting slip rings, and one of them is a coil slip ring 3, and another is a blower fan slip ring 16; Be installed with lead in the cavity of said turning cylinder 6, an end of said lead is electrically connected with said grating type dc coil 9 and blower fan 23 respectively, and the other end of said lead is electrically connected with said coil slip ring 3, blower fan slip ring 16 respectively.
As shown in Figure 1, in the present embodiment, also be provided with temperature measuring equipment 11 on the said no magnetic outer cover 13, said temperature measuring equipment 11 is a temperature sensor.The end face of said no magnetic outer cover 13 is a nonmetallic composite; Select rubber asbestos plate in the present embodiment for use; The outer cover upper surface posts nonmetal refractory plate; Internal layer is provided with the skeleton of certain intensity, and said skeleton adopts non-magnetic stainless steel material, also is provided with the no magnetic protection network (figure does not specifically illustrate) that is used for ventilating around the no magnetic outer cover 13.
As shown in Figure 1, in the present embodiment, said power set comprise frequency modulation motor 17, and the reductor 18 that is connected with the output of said frequency modulation motor 17; The output of said reductor 18 connects the bottom of said turning cylinder 6.Said frequency modulation motor 17 is controlled by control system 12, and frequency modulation motor 17 drives turning cylinder 6 and realizes the alternately rotation of positive and negative direction, also can unidirectionally rotate, and through the setting of control system 12, can make the rotating speed adjustable of frequency modulation motor 17 and turning cylinder 6.
As shown in Figure 1; In the present embodiment; Said agitating device also is provided with walking mechanism; Said walking mechanism comprises the roller 1 that is arranged on 2 bottoms, chassis, and said roller 1 is driven through driving-chain 21 by the mobile reductor 20 that is installed on the chassis 2, makes the walking of rolling on the guide rail of a whole set of agitating device in aluminium smelting furnace lower passage.Certainly, also can adopt the mode of people's force urges.Walking mechanism is set, and the equipment that can guarantee can successfully shift out below furnace bottom when off working state.
In the present embodiment, frame 5 is fixed together with chassis 2.Certainly, agitating device of the present invention can also be provided with arrangement for adjusting height, makes frame 5 liftables, to satisfy the requirement of different work height.Up-down mode can adopt mechanical elevating mode or hydraulic lifting mode, and existing a large amount of these type of ripe elevating mechanisms are given unnecessary details at this no longer in detail in the prior art.
During work; This agitating device is installed in the passage of molten aluminium stove 22 bottoms; In grating type dc coil 9 and fire resistant permanent magnet 14 rotations; The blower fan 23 that is installed in grating type dc coil 9 outsides through wind scooper 24 constantly in grating type dc coil 9 blowing it is forced cooling, and with turning cylinder 6 revolutions.No magnetic outer cover 13 sidepieces are equipped with temperature measuring equipment 11, and when actual temperature surpass to be set operating temperature, control system 12 can pass through temperature measuring equipment 11 alarms, guarantee that this agitating device works in the temperature range of safety.
The above is giving an example of best mode for carrying out the invention, and the part of wherein not addressing in detail is those of ordinary skills' common practise.Protection scope of the present invention is as the criterion with the content of claim, and any equivalent transformation that carries out based on teachings of the present invention is also within protection scope of the present invention.
Claims (10)
1. the aluminum solutions agitating device of an air-cooled resultant field; Comprise the chassis, and be installed in the frame on the chassis, it is characterized in that: turning cylinder vertically is installed on the said frame; The bottom of said turning cylinder connects the power set that drive its rotation, and said power set are controlled by the control system; The upper end of said turning cylinder is equipped with yoke; Said yoke has outward-dipping last plane; Said going up on the plane is equipped with at least two perpendicular grating type dc coils, and said grating type dc coil is equipped with iron core in each grating type dc coil in the form of a ring uniformly at intervals; The polarity of end in the same way of two adjacent iron cores is opposite, and the fire resistant permanent magnet with each iron core upper end polar repulsion is installed between the said grating type dc coil; Said frame top is also installed and is had or not the magnetic outer cover, and described yoke, grating type dc coil, iron core and fire resistant permanent magnet all are arranged in the inner chamber of said no magnetic outer cover; The outside of said grating type dc coil also is provided with the air cooling equipment that is used for its radiating and cooling.
2. the aluminum solutions agitating device of a kind of air-cooled resultant field as claimed in claim 1 is characterized in that: low " one " font, " ten " font or " rice " font in high outer end in the middle of said yoke is.
3. the aluminum solutions agitating device of a kind of air-cooled resultant field as claimed in claim 2, it is characterized in that: said grating type dc coil is two, four or eight; Said grating type dc coil is stretched out in the upper end of said iron core, and the formation emitter stage stretches out.
4. the aluminum solutions agitating device of a kind of air-cooled resultant field as claimed in claim 1; It is characterized in that: said grating type dc coil is the multilayer circulus; Be separated with the high-temperature insulation filler strip between layer and the layer, said high-temperature insulation filler strip interleaved is spaced.
5. the aluminum solutions agitating device of a kind of air-cooled resultant field as claimed in claim 1, it is characterized in that: the outside of said grating type dc coil also is provided with magnetic conductive board, and said magnetic conductive board is installed in the outer end of said yoke.
6. the aluminum solutions agitating device of a kind of air-cooled resultant field as claimed in claim 1, it is characterized in that: said air cooling equipment comprises blower fan, said blower fan is arranged in the no magnetic outer cover inner chamber; It is outside perhaps to be arranged on no magnetic outer cover, and dries or air draught to said grating type dc coil through outside airduct.
7. the aluminum solutions agitating device of a kind of air-cooled resultant field as claimed in claim 1 is characterized in that: two conducting slip rings are installed on the said turning cylinder at least; Said turning cylinder is a quill shaft, is installed with lead in the cavity of said turning cylinder, and an end of said lead is electrically connected with said grating type dc coil and blower fan respectively, and the other end of said lead is electrically connected with said conducting slip ring respectively.
8. the aluminum solutions agitating device of a kind of air-cooled resultant field as claimed in claim 1 is characterized in that: also be provided with temperature measuring equipment on the said no magnetic outer cover.
9. the aluminum solutions agitating device of a kind of air-cooled resultant field as claimed in claim 1, it is characterized in that: said power set comprise frequency modulation motor, and the reductor that is connected with the output of said frequency modulation motor; The output of said reductor connects the bottom of said turning cylinder.
10. like the aluminum solutions agitating device of each described a kind of air-cooled resultant field of claim 1 to 9, it is characterized in that: said agitating device also is provided with walking mechanism and arrangement for adjusting height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110183284 CN102230749B (en) | 2011-07-01 | 2011-07-01 | Aluminum solution stirring device of air-cooled composite magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110183284 CN102230749B (en) | 2011-07-01 | 2011-07-01 | Aluminum solution stirring device of air-cooled composite magnetic field |
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| CN102230749A CN102230749A (en) | 2011-11-02 |
| CN102230749B true CN102230749B (en) | 2012-11-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5792652B2 (en) * | 2012-02-07 | 2015-10-14 | 武蔵エンジニアリング株式会社 | Stirring device, discharge device including the same, and discharge method |
| CN102679753A (en) * | 2012-05-29 | 2012-09-19 | 无锡格莱德科技有限公司 | Automatic-stirring smelting furnace |
| CN102809302A (en) * | 2012-09-14 | 2012-12-05 | 岳阳鸿升电磁科技有限公司 | Bottom mounted electric permanent magnetic agitator for smelting furnace |
| CN104677108B (en) * | 2015-03-13 | 2016-08-24 | 苏州圣谱拉新材料科技有限公司 | A kind of soaking aluminium melting furnace |
| CN107843112A (en) * | 2017-11-21 | 2018-03-27 | 广州立中锦山合金有限公司 | Tunnel type aluminium smelting furnace group with illumination monitoring equipment |
| CN111998691A (en) * | 2020-09-04 | 2020-11-27 | 江苏新伊菲科技有限公司 | Automatic stirring alloy mediation stove |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006017348A (en) * | 2004-06-30 | 2006-01-19 | Kenzo Takahashi | Melting furnace with stirring device, and stirring device |
| CN101367029B (en) * | 2007-09-21 | 2010-09-08 | 北京远望高桥磁能技术有限公司 | Nature air swept type permanent magnetism stirrer with eccentric magnetic field structure |
| CN201335610Y (en) * | 2008-11-24 | 2009-10-28 | 李宸 | Air-cooling type aluminum liquid permanent-magnetic pump |
| CN201322549Y (en) * | 2008-12-18 | 2009-10-07 | 山东华特磁电科技股份有限公司 | Furnace bottom electromagnetic stirrer |
| CN202133296U (en) * | 2011-07-01 | 2012-02-01 | 山东华特磁电科技股份有限公司 | Air-cooled molten aluminum stirring device adopting composite magnetic field |
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