CN201263970Y - Bubbling bed device for aluminium electrolysis flue gas purification system - Google Patents
Bubbling bed device for aluminium electrolysis flue gas purification system Download PDFInfo
- Publication number
- CN201263970Y CN201263970Y CNU2008201631788U CN200820163178U CN201263970Y CN 201263970 Y CN201263970 Y CN 201263970Y CN U2008201631788 U CNU2008201631788 U CN U2008201631788U CN 200820163178 U CN200820163178 U CN 200820163178U CN 201263970 Y CN201263970 Y CN 201263970Y
- Authority
- CN
- China
- Prior art keywords
- ebullated bed
- flue gas
- gas purification
- purification system
- aluminum electrolysis
- Prior art date
- 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.)
- Expired - Fee Related
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 23
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims description 18
- 239000003546 flue gas Substances 0.000 title claims description 18
- 238000000746 purification Methods 0.000 title claims description 17
- 239000004411 aluminium Substances 0.000 title description 9
- 230000005587 bubbling Effects 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000005243 fluidization Methods 0.000 claims description 10
- 238000009827 uniform distribution Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000000843 powder Substances 0.000 abstract description 30
- 238000009835 boiling Methods 0.000 abstract description 11
- 239000000428 dust Substances 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 7
- 239000000779 smoke Substances 0.000 abstract description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 40
- 230000000694 effects Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 230000000391 smoking effect Effects 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005453 pelletization Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 235000013409 condiments Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model provides a boiling bed device used for an aluminum electrolysis smoke gas cleaning system, which comprises an ash hopper of a pocket type dust remover, a boiling bed and a fluidized box at a discharge end. The boiling bed is connected with the bottom of the ash hopper and communicated with the ash hopper. The boiling bed is divided into an upper part and a lower part by a porous ventilation layer, the upper half part is a blanking cavity, and the lower half part is an air cavity on which a pressure air inlet is arranged. The discharge end of the boiling bed is connected with the fluidized box. The utility model provides the boiling bed device used for an aluminum electrolysis smoke gas cleaning system. Because of the large boiling area of the boiling bed device, the boiling bed device can clean electrolyzed fluoridebearing smoke gas which enters the pocket type dust remover in a dry method again, and the problem that a reactor in front of a dust removing system can not thoroughly clean the electrolyzed fluoridebearing smoke gas is primarily solved. Because storing and blowdown are centralized together, making use of the principle of aluminum oxide wind conveying, the boiling bed device solves the problem that an aluminum electrolysis smoke gas governing system can not normally run under the especial circumstance that the supply of aluminum oxide powder is insufficient.
Description
Technical field
The utility model relates to a kind of device of aluminium electrolytic flue dry purifying system, especially a kind of ebullated bed device that is used for aluminum electrolysis flue gas purification system.
Background technology
In the aluminium electrolytic flue dry purifying system, the storing of aluminium oxide and discharge are important link.Flue gas purification system in the past is often owing to existing aluminium oxide under-supply sometimes and even inadequately, so that influenced the clean-up effect of flue gas purification system.Therefore in the aluminium electrolytic flue dry purifying system, whether the abundance that aluminium oxide stores and the uniformity of discharge will directly have influence on the normal operation of whole flue gas purification system.In the aluminium electrolytic flue dry purifying system, at present the VIR reactor before the dust pelletizing system also exists alumina powder and mixes inhomogeneously with the electrolysis smoking gas containing fluorine, and incorporation time is long, and shortcoming such as energy waste is big in the mixed process, therefore, its result of use is desirable not enough.
The utility model content
The utility model purpose is, designs a kind of simple in structurely, and it is better that the aluminium oxide discharge evenly reaches the gas cleaning effect, and the device that energy resource consumption is lower is to overcome the deficiencies in the prior art, to improve the efficient of flue gas purification system.
A kind of ebullated bed device that is used for aluminum electrolysis flue gas purification system comprises the ash bucket of sack cleaner, the fluidisation case of ebullated bed and discharge end thereof.Ash bucket is provided with two adapters, airflow uniform distribution device, access door and bell mouths, ebullated bed is provided with discharge end, overfall and pressure-air inlet port, ebullated bed is connected in the bottom of ash bucket, and communicate with ash bucket, the porous breathable layer is divided into two parts up and down with ebullated bed, and the first half is the blanking chamber, and the latter half is an air cavity, air cavity is provided with the pressure-air inlet port, and the discharge end of ebullated bed connects the fluidisation case.Feed pressure-air in the wherein said air cavity, pressure-air enters from two air inlets of air cavity end.Because the principle that the utility model utilizes Pneumatic type to carry, after feeding pressure-air, owing to penetrate under the effect at powerful gas stream, make air-flow pass hole on the porous breathable layer, enter the blanking chamber on top, evenly mix with the alumina powder in the blanking chamber, just formed the alumina powder fluid, entering electrolysis smoking gas containing fluorine in the dust pelletizing system ash bucket has simultaneously carried out full and uniform mixing with the powder fluid and has contacted, fully adsorb the fluoride in the flue gas by alumina powder, reached the purpose that improves the clean-up effect of cleaning system, improved raw material recovery utilization rates such as fluoride, reduced raw-material consumption, and easy to implement.The simultaneous oxidation aluminium powder is crossed discharge end by air communication and is entered the fluidisation case, help the even of alumina powder discharge like this, and its destroying infection to the physical property of alumina powder is little.Simultaneously the overfall of powder fluid by side, blanking chamber through the adjusting of condiment device quantitative in the reactor of cleaning system, add alumina powder.
The ash bucket of described sack cleaner and ebullated bed are the rectangle cylindrical shell and constitute, and not only generally are applicable in the powder-processed, and can make appearance looks elegant, generous.
Also be provided with airflow uniform distribution device in the grey bucket body of described sack cleaner, the ash headwall is provided with two adapters, an access door, and the ash bucket lower end is provided with bell mouth, wherein said airflow uniform distribution device adopts band steel and steel plate to be welded, and is arranged vertically in grey bucket body.
The length of described ebullated bed is 2500～4500mm, the wide 800～1600mm of being, it is uncovered that its upper end is provided with the rectangle that matches with bell mouth.
The four sides side plate in described blanking chamber is provided with the reinforcement gusset, and the one side skirt walls is provided with a discharging, end, and the one side skirt walls is provided with an overfall.
The steel rack that has been arranged in parallel in the described air cavity, steel rack adopt angle steel and U-steel to be welded.
The utility model ebullated bed device has the electrolysis smoking gas containing fluorine that will enter sack cleaner and carries out the effect of dry cleaning because the boiling area is big; The storing and the discharge of alumina powder can be concentrated on one, have the storage space of certain aluminium oxide, guarantee at aluminium oxide in particular cases under-supplyly, the aluminium electrolytic flue governing system can normally move; The principle of utilizing the alumina powder Pneumatic type to carry guarantees that the interior oxidation aluminium powder can have good flowability, does not pile up the dead angle, reduces the damaged degree to alumina powder; Used pressure-air consumption is very little, has reduced the cost of investment of whole smoke gas treatment system purification equipment; The function that has quantitative oxygenation aluminium powder in the reactor of cleaning system simultaneously.
Description of drawings
Fig. 1 is a front view of the present utility model
Fig. 2 is a left view of the present utility model
Fig. 3 is the structural representation of the utility model sack cleaner ash bucket
Fig. 4 is the structural representation of the utility model fluidisation case
Fig. 5 is the structural representation of the utility model ebullated bed
Fig. 6 is the front view of air cavity in the utility model ebullated bed
Fig. 7 is the vertical view of air cavity in the utility model ebullated bed
Fig. 8 is an operation principle flow chart of the present utility model
In the accompanying drawing: 1, ash bucket 1.1, airflow uniform distribution device 1.2, access door 1.3, bell mouth 1.4, take over 2, bolt 3, fluidisation case 3.1, discharging opening 4, ebullated bed 4.1, uncovered 4.2, discharge end 4.3, porous breathable layer 4.4, overfall 4.5, blanking chamber 4.6, air cavity 4.6.1, pressure-air inlet port 4.6.2, steel rack
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, structure of the present utility model is further described:
One, structure of the present utility model is formed
Referring to Fig. 1～Fig. 7, a kind of ebullated bed device that is used for aluminum electrolysis flue gas purification system mainly is the ash bucket 1 by sack cleaner, and the fluidisation case 3 of ebullated bed 4 and discharge end 4.2 thereof is formed.Wherein ash bucket 1, ebullated bed 4 is the rectangle cylindrical shell and constitutes, be provided with airflow uniform distribution device 1.1 in the ash bucket 1, ash bucket 1 wall is provided with two and takes over 1.4, an access door 1.2, ash bucket 1 lower end is provided with bell mouth 1.3, and wherein said airflow uniform distribution device 1.1 adopts band steel and steel plate to be welded, and is arranged vertically in ash bucket 1 body.Ebullated bed 4 length are 2500～4500mm, the wide 800～1600mm of being, its upper end is provided with the rectangle that matches with bell mouth uncovered 4.1, porous breathable layer 4.3 is divided into two parts up and down with ebullated bed 4, the first half is blanking chamber 4.5, the latter half is an air cavity 4.6, an end plate wall in blanking chamber 4.5 is provided with a discharge end 4.2, the one side skirt walls is provided with an overfall 4.4, be provided with the reinforcement gusset above, be provided with steel rack 4.6.2 in the air cavity 4.6, an end face of air cavity 4.6 is provided with two pressure-air inlet port 4.6.1.
Two, annexation of the present utility model and effect
Referring to Fig. 1～Fig. 7, the ash bucket 1 of sack cleaner and ebullated bed 4 are the central module of this ebullated bed device, constitute by the rectangle cylindrical shell.The ash bucket 1 inner airflow uniform distribution device 1.1 that adopts band steel and steel plate to be welded into to reduce the direct impact of air-flow to filter bag of dust collector, helps aluminum oxide dust to drop in the ash bucket 1 simultaneously.Ebullated bed 4 is divided into two parts up and down by one deck porous breathable layer 4.3, and top is blanking chamber 4.5, and the bottom is an air cavity 4.6.The four sides side plate in blanking chamber 4.5 is provided with the reinforcement gusset, an end plate wall is provided with a discharge end 4.2, the one side skirt walls is provided with an overfall 4.4, be provided with the reinforcement gusset above, be provided with steel rack 4.6.2 in the air cavity 4.6, one end face of air cavity 4.6 is provided with two pressure-air inlet port 4.6.1, two pressure-air inlet port 4.6.1 face the direction of the discharge end 4.2 in blanking chamber 4.5, when reduce feeding pressure-air to the frontal impact of porous breathable layer 4.3, play cushioning effect, help the vertically evenly dispersion of pressure-air simultaneously along air cavity 4.6, help alumina powder and enter into fluidisation case 3 by the discharge end 4.2 in blanking chamber 4.5 smoothly, help to improve the uniformity of alumina powder and the stability of physical property simultaneously.Whole ebullated bed 4 is combined together by the rectangle uncovered 4.1 of its upper end and the bell mouth 1.3 of ash bucket 1 lower end, re-uses bolt 2 and crosses its mating surface, by nut and pad ash bucket 1 and ebullated bed 4 is firmly linked together.
Three, operation principle of the present utility model
Referring to Fig. 1～Fig. 8, Fig. 8 is the operation principle flow chart of the utility model preferred embodiment, when not having external pressure in the air cavity 4.6, gas is normal pressure, alumina powder is inactive state, when when pressure-air inlet port 4.6.1 feeds suitable pressure-air toward air cavity 4.6, pressure-air just along vertically evenly the disperseing of air cavity 4.6, just enters the blanking chamber 4.5 of ebullated bed 4 the first half then by porous breathable layer 4.3.Before this, in ash bucket 1, stored a certain amount of alumina powder, alumina powder directly drops in the blanking chamber 4.5 of ebullated bed 4 the first half by the bell mouth 1.3 of ash bucket 1 lower end, at this moment the pressure-air of Tong Ruing meets in blanking chamber 4.5 and alumina powder, in blanking chamber 4.5, fill the space each other, when the air-flow of pressure-air reaches certain speed, original balance is broken between the alumina powder particle, its volume increases simultaneously, apparent specific gravity (gd) reduces, internal friction angle between the particle and angle of wall friction are all near zero, make the alumina powder in the blanking chamber 4.5 be in fluidized state, alumina powder has just become the powder fluid like this, entering electrolysis smoking gas containing fluorine in the dust pelletizing system ash bucket 1 has simultaneously carried out full and uniform mixing with the powder fluid of fluidized state and has contacted, fully adsorb the fluoride in the flue gas by alumina powder, reached the purpose that improves the clean-up effect of cleaning system.Alumina powder flowing thereupon with fluid, continuously, flow to overfall 4.4 uniformly and the discharge end 4.2 by blanking chamber 4.5 flows to fluidisation case 3, thereby reach the purpose of continuous, uniform discharge, last alumina powder enters the chute of prior art setting from overfall 4.4 and discharging opening 3.1 respectively, is transported to the relevant position through Pneumatic type.
Claims (7)
1, a kind of ebullated bed device that is used for aluminum electrolysis flue gas purification system, the ash bucket that comprises sack cleaner, ebullated bed and fluidisation case, it is characterized in that: ebullated bed is connected in the bottom of ash bucket, and communicates with ash bucket, and the porous breathable layer is divided into two parts up and down with ebullated bed, the first half is the blanking chamber, the latter half is an air cavity, and air cavity is provided with the pressure-air inlet port, and the discharge end of ebullated bed connects the fluidisation case.
2, a kind of ebullated bed device that is used for aluminum electrolysis flue gas purification system according to claim 1, it is characterized in that: described ash bucket and ebullated bed are the rectangle tube structure.
3, a kind of ebullated bed device that is used for aluminum electrolysis flue gas purification system according to claim 1, it is characterized in that: described ash bucket is provided with airflow uniform distribution device, the ash headwall is provided with two adapters, an access door, and the lower end of ash bucket is provided with the rectangle bell mouth.
4, a kind of ebullated bed device that is used for aluminum electrolysis flue gas purification system according to claim 3 is characterized in that: described airflow uniform distribution device adopts band steel and steel plate to be welded, and is arranged vertically in grey bucket body.
5, according to claim 1 or 3 described a kind of ebullated bed devices that are used for aluminum electrolysis flue gas purification system, it is characterized in that: the length of described ebullated bed is 2500～4500mm, the wide 800～1600mm of being, it is uncovered that its upper end is provided with the rectangle that matches with bell mouth.
6, a kind of ebullated bed device that is used for aluminum electrolysis flue gas purification system according to claim 1, it is characterized in that: the four sides side plate in described blanking chamber is provided with the reinforcement gusset, the one side skirt walls is provided with a discharge end, and the one side skirt walls is provided with an overfall.
7, a kind of ebullated bed device that is used for aluminum electrolysis flue gas purification system according to claim 1 is characterized in that: the steel rack that has been arranged in parallel in the described air cavity, steel rack adopt angle steel and U-steel to be welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201631788U CN201263970Y (en) | 2008-08-25 | 2008-08-25 | Bubbling bed device for aluminium electrolysis flue gas purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201631788U CN201263970Y (en) | 2008-08-25 | 2008-08-25 | Bubbling bed device for aluminium electrolysis flue gas purification system |
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| Publication Number | Publication Date |
|---|---|
| CN201263970Y true CN201263970Y (en) | 2009-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201631788U Expired - Fee Related CN201263970Y (en) | 2008-08-25 | 2008-08-25 | Bubbling bed device for aluminium electrolysis flue gas purification system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141155A (en) * | 2014-07-10 | 2014-11-12 | 湖州织里荣华铝业有限公司 | Electrolytic aluminum exhaust gas treatment device |
| CN104514016A (en) * | 2013-09-26 | 2015-04-15 | 沈阳铝镁设计研究院有限公司 | Reactor capable of enhancing wind-powder mixing effect |
| CN109402676A (en) * | 2018-12-28 | 2019-03-01 | 河南神火煤电股份有限公司 | A kind of automatic floatation system of aluminium oxide |
| CN110252084A (en) * | 2014-06-09 | 2019-09-20 | 贝克特尔矿业金属股份有限公司 | Integrated gas processing |
-
2008
- 2008-08-25 CN CNU2008201631788U patent/CN201263970Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514016A (en) * | 2013-09-26 | 2015-04-15 | 沈阳铝镁设计研究院有限公司 | Reactor capable of enhancing wind-powder mixing effect |
| CN110252084A (en) * | 2014-06-09 | 2019-09-20 | 贝克特尔矿业金属股份有限公司 | Integrated gas processing |
| CN104141155A (en) * | 2014-07-10 | 2014-11-12 | 湖州织里荣华铝业有限公司 | Electrolytic aluminum exhaust gas treatment device |
| CN109402676A (en) * | 2018-12-28 | 2019-03-01 | 河南神火煤电股份有限公司 | A kind of automatic floatation system of aluminium oxide |
| CN109402676B (en) * | 2018-12-28 | 2024-03-29 | 河南神火煤电股份有限公司 | Automatic flotation system of aluminium oxide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG JIEYU ENVIRONMENTAL PROTECTION EQUIPMENT Free format text: FORMER OWNER: HAINING JIEYU ENVIRONMENT PROTECTION EQUIPMENT CO., LTD. Effective date: 20130524 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 314400 JIAXING, ZHEJIANG PROVINCE TO: 314405 JIAXING, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130524 Address after: 314405 No. five, No. 8, salt official Industrial Park, Zhejiang, Haining Patentee after: ZHEJIANG JIEYU ENVIRONMENTAL PROTECTION EQUIPMENT TECHNOLOGY CO., LTD. Address before: The official town Haining City, Zhejiang province 314400 high salt Zhulu No. 12 Patentee before: Haining Jieyu Environment Protection Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20140825 |
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| EXPY | Termination of patent right or utility model |