CN207294200U - A kind of aluminum oxide decomposer stirring system - Google Patents
A kind of aluminum oxide decomposer stirring system Download PDFInfo
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- CN207294200U CN207294200U CN201721272062.3U CN201721272062U CN207294200U CN 207294200 U CN207294200 U CN 207294200U CN 201721272062 U CN201721272062 U CN 201721272062U CN 207294200 U CN207294200 U CN 207294200U
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- motor
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- agitating paddle
- groove body
- blade
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Abstract
The utility model discloses a kind of aluminum oxide decomposer stirring system, belongs to power stirring technique field, including groove body and wind stirring device；The wind stirring device includes ventilation axle of motor, agitating paddle and two bearings；The two bearings are separately positioned at the top of the groove body and bottom, are used to support ventilation axle of motor and rotate about the axis thereof；The ventilation axle of motor is one end open, and the pipe fitting of another port closing, its side connects the agitating paddle；The agitating paddle includes blade and ventilation duct, and the blade is flat cavity structure, and surface thereof offers the hole of connection cavity, and the another side of opposition is used to stir the slurry stirred in the groove body；The ventilation duct is used to be fixedly connected with the blade and ventilation axle of motor, and ventilation axle of motor pore is connected with the blade cavity.The power source that the stirring system uses is compressed air, can reach and realize the different stirring emergency degree of different slurry aspects according to technological requirement, equipment manufacturing costs are low, and operating cost is low, good in economic efficiency.
Description
【Technical field】
It the utility model is related to power stirring technique field, and in particular to stir applied to the power in aluminum oxide decomposer body
Mix system.
【Background technology】
Alumina producing Bayer process has the characteristics that flow is simple, operation is convenient, product quality is high.Oxygen is produced in Bayer process
During changing aluminium, it is one of important process that supersaturated sodium aluminate solution addition crystal seed, which carries out decomposition reaction, commonly referred to as " brilliant
Kind of decomposition process ", is that substantial amounts of aluminium hydroxide is added in supersaturated sodium aluminate solution as crystal seed referred to as " kind operation break-down ",
Carry out the induction crystallization of aluminum hydroxide crystals and grow up, decompose supersaturated sodium aluminate solution, after decomposition reaction continues 35~75h
Obtained aluminium hydroxide slurry, carries out solid-liquor separation and is classified by granular size, the coarse granule hydroxide of gained after decomposition
Aluminium is washed, dehydration, and roasting obtains alumina product；Fine grain aluminium hydroxide, which returns to decomposition process, to be continued to be used as crystal seed.
Therefore, decomposition of crystal seed is one of critical process for controlling alumina product technical-economic index.Supersaturated sodium aluminate solution crystal seed
Equipment employed in decomposition process is known as " decomposition of crystal seed groove ", referred to as " seed precipitation tank or decomposer ", production process be typically by
Several to more than ten seed precipitation tank is cascaded progress.
For a long time, in sodium aluminate solution crystal seed decomposition process, integrally stirred using in each seed precipitation tank always
The decomposition technique method of dynamic slurries, i.e. complete mixing flow.At present, it is a kind of common agitating mode that the full puddling of machinery, which mixes isolation,.
It is to erect to set a mechanical stirring device with multilayer special designing blade uninterrupted in decomposer that mechanical full puddling, which is mixed,
Ground is stirred.At present, churned mechanically driving force derives from motor.Since groove body is huge, 14 meters of diameter, high 35 meters
Decomposer just needs the stirring motor and gearbox of one 75 kilowatts of configuration, and cost costly, not only needs to consume a large amount of electric energy,
And maintenance and repair is costly.In addition, common stirring decomposition technique method can cause mutually to mix between upper and lower layer liquid
(being commonly called as " short circuit "), reduces the sodium aluminate solution degree of supersaturation being just transported in decomposer, declines reaction efficiency, while by force
Strong complete mixing flow agitation also result in the product particle degree that crystallization separates out and decline.
The decomposer of maximization, diameter reach 14 meters, up to 35 meters, and top diameter of stirring paddle is 8.4 meters, bottom agitating paddle
A diameter of 10 meters, operation moment of torsion is very big, to torsion output equipment and severe to the fulcrum requirement condition of connection blade and shaft
Carve, complex process, cost of manufacture is high.
【Utility model content】
There are technical problem, the utility model for more than to provide a kind of aluminum oxide decomposer stirring system, the aluminium oxide
The power source that decomposer stirring system uses is compressed air so that equipment manufacturing costs are low, and maintenance maintenance cost is low, operation
Expense is low；In addition, the stirring system can realize different stirring emergency degree in different slurry aspects according to technological requirement,
Realize efficiently production.
The technical solution that the utility model is taken is：
A kind of aluminum oxide decomposer stirring system, including groove body and wind stirring device；The wind stirring device includes
Ventilation axle of motor, agitating paddle and two bearings；The two bearings are separately positioned at the top of the groove body and bottom, be used to support ventilation axle of motor around
Its axis rotates；The ventilation axle of motor is one end open, and the pipe fitting of another port closing, its side connects the agitating paddle；It is described
Agitating paddle includes blade and ventilation duct, and the blade is flat cavity structure, and surface thereof offers the hole of connection cavity, right
Vertical another surface is used to stir the slurry stirred in the groove body；The ventilation duct is used to be fixedly connected with the blade and ventilation
Axis, and ventilation axle of motor pore is connected with the blade cavity.
Further, groove body is cylindrical structural, and groove body axis is overlapped with the ventilation axle of motor axis.
Further, the agitating paddle is set along one or more vertical planes of ventilation axle of motor, and agitating paddle is with ventilation axle of motor
Axis is set for shaft along same direction of rotation.
Further, it is uniformly arranged in conplane agitating paddle as one or more.
In order to further obtain more preferably mixing effect, one or more wind stirring devices are provided with groove body.
The outlet interface end of ventilation axle of motor openend and air compression station connects, and air-flow enters from ventilation axle of motor openend, flows through ventilation
Pipe, blade cavity, finally sprays from hole and flows out.Propulsive thrust is formed from the air-flow of hole outflow, propulsive thrust acts on blade, makes
Obtain ventilation axle of motor to rotate about the axis thereof, blade is stirred slurry and is stirred.In addition, the air-flow of injection produces slurry in bubble, it is local
Pulp density is lower, and local slurry flowing, air-flow futher stirs slurry.
Using technical solutions of the utility model, have the advantages that：
1. the aluminum oxide decomposer stirring system of the utility model drives the wind-force to stir using compressed air as power resources
Mix device and carry out slurry stirring, equipment is succinct, and manufacture cost is low, and maintenance maintenance expense is low, avoids setting using the large-scale of high energy consumption
Standby, operating cost is low, good in economic efficiency.
2. slurry is locally purged from the compressed air stream that the blade sprays so that local pulp density is low, in slurry
Airflow stirring is partially formed, mixing effect is stronger, more preferable.
3. according to process requirements, the agitating paddle is added in different slurry aspects, realizes that different slurry aspect differences are stirred
Mix the technique effect of emergency.
4. traditional shaft drives the drive manner of agitating paddle easily to cause to damage to agitating paddle fulcrum, fracture, this practicality
The wind stirring device of new use, acts directly on blade, agitating paddle fulcrum is subject to the effect of power to imitate using the propulsive thrust of wind
Fruit is small, and production is safer, more energy efficient.
【Brief description of the drawings】
Fig. 1 is the structure diagram of one embodiment of the utility model；
Fig. 2 is the connection schematic perspective view of the ventilation axle of motor and agitating paddle shown in Fig. 1；
Wherein：1- groove bodies, 11- feed pipes, 12- extraction pipes, 2- ventilation axle of motor, 3- agitating paddles, 31- ventilation ducts,
32- blades, 321- through holes, 4 bearings, 5- air-pressure tubes.
【Embodiment】
Make further details of explanation to the utility model below in conjunction with Figure of description and specific embodiment, be worth noting
, specific examples below is merely to illustrate the technical solution of the utility model, and non-limiting, in the utility model technical side
Modify under the spirit enlightenment of case to the technical solution of the utility model or equivalent substitution belongs to the protection model that this patent is weighed
Enclose.
Such as Fig. 1-2, a kind of aluminum oxide decomposer stirring system, including groove body 1 and wind stirring device；The groove body 1 is
Cylindrical structural, the wind stirring device is stirring the slurry inside groove body 1；1 side of groove body offers feed pipe 11,
For slurry to be sent into 1 intracavitary of groove body；An extraction pipe 12 is stretched into from 1 upper side of groove body to go directly 1 bottom of groove body, the extraction pipe 12
One air-pressure tube 5 of contained inside；Air-pressure tube 5 is passed through compressed air stream, causes the slurry in extraction pipe 12 to produce air bubble, and density becomes
Low, slurry is extruded up from extraction pipe 12, and is flowed out from 12 mouth of pipe of extraction pipe.
Fig. 1 is refer to, the wind stirring device includes ventilation axle of motor 2, agitating paddle 3 and two bearings 4；The two bearings 4 are divided
The center of the top of groove body 1 and bottom is not arranged on, is used to support ventilation axle of motor 2 and is rotated about the axis thereof；On the ventilation axle of motor 2 is
End opening, the pipe fitting of lower end closed, the agitating paddle 3 is connected in its side；The agitating paddle 3 includes blade 32 and ventilation duct
31, the blade 32 is flat cavity structure, and surface thereof offers the hole 321 of connection cavity, and hole 321 can offer one
A or multiple, another surface of opposition is used to stir, stir slurry；The ventilation duct 31 be used for be fixedly connected the blade 32 and
Ventilation axle of motor 2, and 2 pore of ventilation axle of motor is connected with 32 cavity of blade.
Agitating paddle 3 is set along one or more vertical planes of ventilation axle of motor 2, and agitating paddle 3 is using 2 axis of ventilation axle of motor as shaft
Set along same direction of rotation, agitating paddle 3 in the same plane is uniformly arranged as one or more.Referring to Fig. 2, in this implementation
In example, 2 three different vertical planes of ventilation axle of motor are provided with agitating paddle 3, from top to bottom, 4 are provided with first plane
Agitating paddle 3, second, third plane is both provided with 2 agitating paddles 3, and agitating paddle 3 in the same plane is with side clockwise
Method is uniformly arranged.
The outlet interface end of 2 openend of ventilation axle of motor and air compression station connects, and jet-stream wind enters from 2 openend of ventilation axle of motor, stream
Through ventilation duct 31, blade cavity, finally sprays from hole 321 and flows out.The air-flow flowed out from hole 321 forms propulsive thrust, counter to push away
Power acts on blade 32 so that ventilation axle of motor 2 rotates about the axis thereof, and blade 32 is stirred slurry and is stirred.In addition, injection outflow
Air-flow produces bubble to slurry, and local pulp density is lower, and local slurry flowing, air-flow futher stirs slurry.
Preferably, in order to reach more preferably mixing effect, the institute of one or more can be provided with decomposer tank 1
State wind stirring device.
Claims (5)
1. a kind of aluminum oxide decomposer stirring system, it is characterised in that including groove body and wind stirring device；The wind stirring
Device includes ventilation axle of motor, agitating paddle and two bearings；The two bearings are separately positioned at the top of the groove body and bottom, are used to support
Ventilation axle of motor rotates about the axis thereof；The ventilation axle of motor is one end open, and the pipe fitting of another port closing, its side connects the stirring
Paddle；The agitating paddle includes blade and ventilation duct, and the blade is flat cavity structure, and surface thereof offers connection cavity
Hole, another surface of opposition are used to stir the slurry stirred in the groove body；The ventilation duct is used to be fixedly connected with the paddle
Leaf and ventilation axle of motor, and ventilation axle of motor pore is connected with the blade cavity.
2. a kind of aluminum oxide decomposer stirring system as claimed in claim 1, it is characterised in that the agitating paddle is along ventilation axle of motor
One or more vertical planes set, and agitating paddle is set using ventilation axle of motor axis as shaft along same direction of rotation.
3. a kind of aluminum oxide decomposer stirring system as claimed in claim 2, it is characterised in that in conplane agitating paddle
It is uniformly arranged as one or more.
A kind of 4. aluminum oxide decomposer stirring system as claimed in claim 1, it is characterised in that the groove body is cylinder,
And its axis is overlapped with ventilation axle of motor axis.
A kind of 5. aluminum oxide decomposer stirring system as claimed in claim 1, it is characterised in that be provided with groove body one or
Multiple wind stirring devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272062.3U CN207294200U (en) | 2017-09-29 | 2017-09-29 | A kind of aluminum oxide decomposer stirring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272062.3U CN207294200U (en) | 2017-09-29 | 2017-09-29 | A kind of aluminum oxide decomposer stirring system |
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| Publication Number | Publication Date |
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| CN207294200U true CN207294200U (en) | 2018-05-01 |
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| CN201721272062.3U Active CN207294200U (en) | 2017-09-29 | 2017-09-29 | A kind of aluminum oxide decomposer stirring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555456A (en) * | 2017-09-29 | 2018-01-09 | 广西信发铝电有限公司 | A kind of aluminum oxide decomposer stirring system |
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2017
- 2017-09-29 CN CN201721272062.3U patent/CN207294200U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555456A (en) * | 2017-09-29 | 2018-01-09 | 广西信发铝电有限公司 | A kind of aluminum oxide decomposer stirring system |
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