CN109226137A - A kind of aluminum oxide decomposer scabs cleaning plant and method - Google Patents
A kind of aluminum oxide decomposer scabs cleaning plant and method Download PDFInfo
- Publication number
- CN109226137A CN109226137A CN201811200496.1A CN201811200496A CN109226137A CN 109226137 A CN109226137 A CN 109226137A CN 201811200496 A CN201811200496 A CN 201811200496A CN 109226137 A CN109226137 A CN 109226137A
- Authority
- CN
- China
- Prior art keywords
- hanging ring
- aluminum oxide
- scabs
- decomposer
- traction rope
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention discloses a kind of aluminum oxide decomposer and scabs cleaning plant and method, the aluminum oxide decomposer scabs cleaning plant, including hanging ring, lifting device, and the hanging ring is horizontally disposed, the lifting device is connect with hanging ring, and driving hanging ring is gone up and down along the vertical direction；It uniformly arranges on the excircle of the hanging ring circle flexible blades device；The internal diameter of the hanging ring is greater than the outer diameter of agitating device in aluminum oxide decomposer；The aluminum oxide decomposer method for cleaning that scabs applies the aluminum oxide decomposer and scabs cleaning plant.The present invention can add part process and equipment in the case where not changing existing decomposition technique process, may be implemented quickly to remove decomposer inner wall and scab, extension decomposer service life.
Description
Technical field
The present invention relates to technical field of alumina production, specially a kind of aluminum oxide decomposer scabs cleaning plant and side
Method.
Background technique
The country is using in the enterprise of alumina producing Bayer process, and major part is using large arch dam, high concentration complete mixing flow machine
Tool stirring-type one-stage process or two-phase method decomposition of crystal seed production technology, decomposer are the key equipments in decomposition of crystal seed production, are undertaken
Sodium aluminate solution crystal seed decompose task.More and more decomposer stirrings micro-disturbance less using stirrer paddle in recent years
Flat-pushing Flow Technique, the power that aluminum hydroxide slime disturbs in decomposer is small, and the crystallization for decomposing the aluminium hydroxide of precipitation can adhere to
It scabs in cell wall, striker plate, extraction pipe, chute, stirrer paddle etc. formation, cell wall scabs thickness averagely about 3cm, local knot
Scar is deposited on bottom formation bottom part of decomposer knot in stirring dead angle partial aluminum hydroxide up to 20cm, since groove body bottom exists
Scar, slot bottom scab about 1~2.5 meter of height, therefore all decomposers are substantially planned once to scab by exiting within 1 year cleaning.
The generation that decomposer scabs be it is inevitable, with increasing for the organic matter in production process, the speed of growth that scabs
Also accelerate, the presence to scab due to decomposing groove groove wall is very big to the normal Influence of production of decomposition, has often and collapses because cell wall scabs
It collapses and kills stirring decomposer is caused to be forced to move back slot and cleared up, cause very big influence to production.
Decomposition groove groove wall scabs, and there are two types of method for cleaning: first is that after slurry in decomposer is moved back sky, feed liquor alkali 300~
400m3Being deployed into total liquid measure with mother liquor in decomposer is 1200~1800m3Circulation clear liquid, with 13~20 ton/hours
Low pressure initial steam heats temperature raising to 110 DEG C or so by double-tube heat exchanger, is divided high temperature clear liquid from groove top inner wall spray with pump
It scabs in solution slot to dissolution and falls off, it is 1 day or so time-consuming；Another method is exactly manual cleaning, is hung in decomposer groove top use
Basket goes up and down worker to the place that scabs in decomposer, carries out manual cleaning to scabbing with tools such as spade, pneumatic picks.Chemical cleaning method disappears
Steam is consumed, the change clear liquid of generation is very big to subsequent affect, generates damage to slot inner wall during manual cleaning, working efficiency is not
Height, and high altitude operation is dangerous.
Summary of the invention
The present invention provides a kind of aluminum oxide decomposer and scabs cleaning plant and method, can not change existing decomposition work
In the case where skill process, by addition part process and equipment, it may be implemented quickly to remove decomposer inner wall and scab, extension decomposition
Slot service life.
Technical scheme is as follows:
Aluminum oxide decomposer of the invention scabs cleaning plant, including hanging ring, lifting device, and the hanging ring is horizontally disposed, institute
The lifting device stated is connect with hanging ring, and driving hanging ring is gone up and down along the vertical direction；Uniformly arrange one on the excircle of the hanging ring
Enclose flexible blades device；The internal diameter of the hanging ring is greater than the outer diameter of agitating device in aluminum oxide decomposer.
Further, the lifting device includes elevator, traction rope I, fixed pulley, total traction rope, the elevator
Above hanging ring, on the central axis of hanging ring；The fixed pulley is equipped with 3 groups or more, in regular polygon branch in hanging
Above ring, the center of regular polygon is located on the central axis of hanging ring；The elevator is connected with total traction rope, total traction rope
As the rotation of elevator carries out folding and unfolding；The traction rope I is arranged according to fixed pulley, the lower end of each traction rope I respectively with
Hanging ring connection, each tie point form regular polygon connection structure, the upper end of each traction rope I after fixed pulley respectively and always
Traction rope connection.
Further, the elevator is hoist engine, and the traction rope I, total traction rope are wirerope.
Further, the hanging ring is circular ring structure, opens up jagged, described notch according in decomposer on the outside of annulus
The setting of the position of extraction pipe and compressed air hose, hanging ring avoid these components in lifting just.The indentation, there can basis
Actual setting flexible blades device.
Further, the flexible blades device includes upper scraping blade, lower scraping blade, connector, the upper scraping blade, lower scraping blade
It is fabricated from a flexible material, is respectively arranged on the edge of the upper and lower surfaces of hanging ring, upper scraping blade, lower scraping blade are correspondingly arranged；The company
Fitting runs through upper scraping blade, hanging ring, lower scraping blade, be respectively equipped with fastener on the both ends of connector, the upper scraping blade, lower scraping blade
Outer end is along the radially outwardly extending of hanging ring；Upper scraping blade, lower scraping blade edge contacted respectively with the inner wall of aluminum oxide decomposer.
Further, the connector is bolt, and the fastener is nut.
Further, multiple groups are arranged in the hanging ring along the vertical direction, pass through leading in gengon distribution between each group hanging ring
Messenger II connection, the hanging ring positioned at top are connect with lifting device.
Further, the traction rope II is wirerope.
It scabs method for cleaning the present invention also provides a kind of aluminum oxide decomposer, applies the aluminum oxide decomposer and scab
Cleaning plant, comprising the following steps: in the state of keeping production to continue, hanging ring is dropped to by oxidation by lifting device
Aluminium bottom part of decomposer is then lifted out device and is slowly promoted to hanging ring, in lifting process, every group of flexible blades device respectively with
The inner wall of aluminum oxide decomposer contacts, while clearing up scabbing on aluminum oxide decomposer inner wall；When the hanging ring of bottom
After being lifted beyond the liquid level of aluminum oxide decomposer, lifting device stops, and completes primary cleaning；This cleaning process is repeated, until
The cleaning of aluminum oxide decomposer bear building-up scar is complete.
Further, the lifting device slowly promotes hanging ring, and the speed of promotion is 0.5-1 ms/min.
The invention has the benefit that
Technical process of the invention is simple and easy, and device structure design rationally, securely and reliably, is set in the current production of no change
Under the premise of standby, original technological deficiency is overcome, decomposer inner wall can be cleared up and scabbed, reduced in decomposer operational process and sink
The risk of slot extends the decomposer cycle of operation, remarkable in economical benefits.
Detailed description of the invention
Fig. 1 is working state schematic representation of the invention；
Fig. 2 is the integral installation schematic diagram of cleaning plant of the present invention；
Fig. 3 is the schematic view of the front view of cleaning plant of the present invention；
Fig. 4 is the overlooking structure diagram of cleaning plant of the present invention；
Each serial number and title in figure are as follows:
1- hanging ring；2- elevator；3- traction rope；4- fixed pulley；5- notch；The upper scraping blade of 6-；Scraping blade under 7-；8- connector；9- is total
Traction rope；10- traction rope II.
Specific embodiment
By specific embodiment, the present invention is described in detail with reference to the accompanying drawing.
Embodiment 1
The cleaning plant as shown in Figure 1-3, aluminum oxide decomposer of the invention scabs, including hanging ring 1, lifting device, described hangs
Ring 1 is horizontally disposed, and the lifting device is connect with hanging ring 1, and driving hanging ring 1 is gone up and down along the vertical direction；Outside the hanging ring 1
It uniformly arranges on circumference a circle flexible blades device；The internal diameter of the hanging ring 1 is greater than agitating device in aluminum oxide decomposer
Outer diameter.
The lifting device includes elevator 2, traction rope I3, fixed pulley 4, total traction rope 9, and the elevator 2 is set
Above hanging ring 1, on the central axis of hanging ring 1；The fixed pulley 4 is equipped with 3 groups or more, in regular polygon branch in hanging
1 top of ring, the center of regular polygon is located on the central axis of hanging ring 1；The elevator 2 is connected with total traction rope 9, always leads
Messenger 9 carries out folding and unfolding with the rotation of elevator 2；The traction rope I3 is arranged according to fixed pulley, the traction rope I3's
Lower end is connect with hanging ring 1 respectively, and each tie point forms regular polygon connection structure, and the upper end of each traction rope I3 is by fixed sliding
It is connect respectively with total traction rope 9 after wheel 4.
The elevator 2 is hoist engine, and the traction rope I3, total traction rope 9 are wirerope.
The hanging ring 1 is circular ring structure, opens up jagged 5 on the outside of annulus, and the notch 5 is according to mentioning material in decomposer
The position of pipe and compressed air hose is arranged, and hanging ring 1 avoids these components in lifting just.
The flexible blades device includes upper scraping blade 6, lower scraping blade 7, connector 8, and the upper scraping blade 6, lower scraping blade 7 divide
Not She Yu hanging ring 1 upper and lower surfaces edge on, upper scraping blade 6, lower scraping blade 7 are correspondingly arranged；The connector 8, which runs through, above to be scraped
Piece 6, hanging ring 1, lower scraping blade 7 are respectively equipped with fastener, the outer end edge of the upper scraping blade 6, lower scraping blade 7 on the both ends of connector 8
Hanging ring 1 it is radially outwardly extending；Upper scraping blade 6, lower scraping blade 7 edge contacted respectively with the inner wall of aluminum oxide decomposer.
The connector 8 is bolt, and the fastener is nut.
Multiple groups are arranged in the hanging ring 1 along the vertical direction, pass through the traction rope in gengon distribution between each group hanging ring 1
II10 connection, the hanging ring 1 positioned at top are connect with lifting device.
The traction rope II10 is wirerope.
Aluminum oxide decomposer of the invention scabs method for cleaning, applies above-mentioned aluminum oxide decomposer and scabs cleaning plant,
The following steps are included: hanging ring 1 is dropped to aluminum oxide decomposer by lifting device in the state of keeping production to continue
Bottom is then lifted out device and is slowly promoted to hanging ring 1, in lifting process, every group of flexible blades device respectively with aluminium oxide
The inner wall of decomposer contacts, while clearing up scabbing on aluminum oxide decomposer inner wall；Surpass when the hanging ring 1 of bottom is promoted
After the liquid level of peroxidating aluminium decomposer, lifting device stops, and completes primary cleaning；This cleaning process is repeated, until aluminium oxide
The cleaning of decomposer bear building-up scar is complete.
The lifting device slowly promotes hanging ring 1, and the speed of promotion is 0.5 m/min.
Using method of the invention, while reproduction, carry out within 3-10 days cleaning it is primary, it is ensured that aluminum oxide decomposer
In scab and be substantially at the state of nothing, and do not need to shut down in the process, it is without human intervention, clear without practical high temperature
Liquid is cleaned, and artificial and cost, the trouble of also avoiding clear liquid subsequent processing have both been saved, while being also avoided artificial clear
Damage, the problems such as working efficiency is not high, and high altitude operation is dangerous, are generated to slot inner wall during reason.
Claims (10)
- The cleaning plant 1. a kind of aluminum oxide decomposer scabs, including hanging ring (1), lifting device, it is characterised in that:The hanging ring (1) is horizontally disposed, and the lifting device is connect with hanging ring (1), and driving hanging ring (1) rises along the vertical direction Drop；It uniformly arranges on the excircle of the hanging ring (1) a circle flexible blades device；The internal diameter of the hanging ring (1) is greater than oxygen Change the outer diameter of agitating device in aluminium decomposer.
- The cleaning plant 2. aluminum oxide decomposer according to claim 1 scabs, it is characterised in that: the lifting device packet Include elevator (2), traction rope I(3), fixed pulley (4), total traction rope (9), the elevator (2) be set to hanging ring (1) above, On the central axis of hanging ring (1)；The fixed pulley (4) is equipped with 3 groups or more, in regular polygon branch on hanging ring (1) Side, the center of regular polygon is located on the central axis of hanging ring (1)；The elevator (2) is connected with total traction rope (9), always Traction rope (9) carries out folding and unfolding with the rotation of elevator (2)；The traction rope I(3) it is arranged according to fixed pulley, each item traction Rope I(3) lower end connect respectively with hanging ring (1), each tie point formation regular polygon connection structure, each traction rope I(3) Upper end is connect with total traction rope (9) respectively after fixed pulley (4).
- The cleaning plant 3. aluminum oxide decomposer according to claim 2 scabs, it is characterised in that: the elevator (2) It is wirerope for hoist engine, the traction rope I(3), total traction rope (9).
- The cleaning plant 4. aluminum oxide decomposer according to claim 1 scabs, it is characterised in that: the hanging ring (1) is Circular ring structure opens up jagged (5) on the outside of annulus, and the notch (5) is according to extraction pipe in decomposer and compressed air hose Position setting, hanging ring (1) avoid these components in lifting just.
- The cleaning plant 5. aluminum oxide decomposer according to claim 1 scabs, it is characterised in that: the flexible blades dress It sets including upper scraping blade (6), lower scraping blade (7), connector (8), the upper scraping blade (6), lower scraping blade (7) are respectively arranged on hanging ring (1) Upper and lower surfaces edge on, upper scraping blade (6), lower scraping blade (7) are correspondingly arranged；The connector (8) through upper scraping blade (6), Hanging ring (1), lower scraping blade (7), be respectively equipped with fastener on the both ends of connector (8), the upper scraping blade (6), lower scraping blade (7) Outer end is radially outwardly extending along hanging ring (1)；Upper scraping blade (6), lower scraping blade (7) edge connect respectively with the inner wall of aluminum oxide decomposer Touching.
- The cleaning plant 6. aluminum oxide decomposer according to claim 4 scabs, it is characterised in that: the connector (8) For bolt, the fastener is nut.
- The cleaning plant 7. aluminum oxide decomposer according to claim 1-6 scabs, it is characterised in that: described hangs Multiple groups are arranged in ring (1) along the vertical direction, pass through the traction rope II(10 in gengon distribution between each group hanging ring (1)) connection, position It is connect in the hanging ring (1) of top with lifting device.
- The cleaning plant 8. aluminum oxide decomposer according to claim 7 scabs, it is characterised in that: the traction rope II It (10) is wirerope.
- The method for cleaning 9. a kind of aluminum oxide decomposer scabs is applied such as the described in any item alumina decompositions of claim 1-8 Slot scabs cleaning plant, which comprises the following steps: in the state of keeping production to continue, passes through and promotes dress It sets and hanging ring (1) is dropped into alumina decomposition trench bottom, be then lifted out device and hanging ring (1) is slowly promoted, lifting process In, every group of flexible blades device is contacted with the inner wall of aluminum oxide decomposer respectively, while to the knot on aluminum oxide decomposer inner wall Scar is cleared up；After the hanging ring (1) of bottom is lifted beyond the liquid level of aluminum oxide decomposer, lifting device stops, and completes one Secondary cleaning；This cleaning process is repeated, until the cleaning of aluminum oxide decomposer bear building-up scar is complete.
- The method for cleaning 10. aluminum oxide decomposer according to claim 9 scabs, it is characterised in that: the lifting device Hanging ring (1) is slowly promoted, the speed of promotion is 0.5-1 ms/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811200496.1A CN109226137B (en) | 2018-10-16 | 2018-10-16 | Device and method for cleaning scab of alumina decomposer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811200496.1A CN109226137B (en) | 2018-10-16 | 2018-10-16 | Device and method for cleaning scab of alumina decomposer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109226137A true CN109226137A (en) | 2019-01-18 |
| CN109226137B CN109226137B (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811200496.1A Active CN109226137B (en) | 2018-10-16 | 2018-10-16 | Device and method for cleaning scab of alumina decomposer |
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| Country | Link |
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| CN (1) | CN109226137B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142400A (en) * | 2019-06-06 | 2019-08-20 | 日轻商菱铝业（昆山）有限公司 | The automatic package clearing machine of aluminium slag |
| CN112546946A (en) * | 2020-12-08 | 2021-03-26 | 山东瑞尚机械有限公司 | Aluminum oxide seed precipitation decomposer |
| CN113083827A (en) * | 2021-04-15 | 2021-07-09 | 山东铝城建筑安装工程有限公司 | Mechanical cleaning system and mechanical cleaning method for settling tank for aluminum oxide production |
| CN113714230A (en) * | 2021-09-08 | 2021-11-30 | 中国石油大学(华东) | Rotary ultra-high pressure water cleaning device for scabs of aluminum oxide production tank |
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|---|---|
| CN109226137B (en) | 2023-09-19 |
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