CN207137612U - A kind of aluminium cell Multi-point smoke gas purification recovery system - Google Patents
A kind of aluminium cell Multi-point smoke gas purification recovery system Download PDFInfo
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- CN207137612U CN207137612U CN201721020249.4U CN201721020249U CN207137612U CN 207137612 U CN207137612 U CN 207137612U CN 201721020249 U CN201721020249 U CN 201721020249U CN 207137612 U CN207137612 U CN 207137612U
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- air inlet
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- absorbing cavity
- pipe
- recovery system
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Abstract
The utility model discloses a kind of aluminium cell Multi-point smoke gas purification recovery system, including diversity tracheae, diversity tracheae is connected with main header, main header is connected with dust cleaning case, dust cleaning case includes casing, and wall box is provided with air inlet, and air inlet is connected with main header, dust-collecting box is provided with below air inlet, dust-blocking cover is provided with above air inlet；Venthole is provided with the top of casing, venthole is connected with the first delivery pipe, bottom of first delivery pipe with a spray column after a heat exchanger communicates, scavenging solution import and flue gas row's mouth are provided with the top of spray column, the bottom of spray column is communicated by drain pipe with liquid pool, with transfer tube is provided with liquid pool, transfer tube is connected with feed tube, and feed tube communicates with scavenging solution import；Flue gas row's mouth is connected with the second delivery pipe, and the second delivery pipe is connected with alumina adsorption tank.The system can be in recovered flue gas heat, ensure treatment effect, be advantageous to energy-conservation and environmental protection.
Description
Technical field
It the utility model is related to flue gas purification system field, and in particular to a kind of aluminium cell Multi-point smoke gas purification recovery
System.
Background technology
In aluminum electrolysis industry, aluminium electrolysis process is using alumina melt as electrolyte, and electricity is carried out by electrode of carbon materials
Solution, the metallic aluminium of liquid is separated out on negative electrode, the anodic gas based on CO2 is produced on anode.Simultaneously can also give out with
Atmosphere pollution based on hydrogen fluoride, fluoride, sulfur dioxide, dust etc., these gases are referred to as being electrolysed cigarette with anodic gas
Gas.
The flue gas purification system of current electrolysis aluminium manufacturer uses pipeline dry cleaning technology, and its principle is to utilize aluminum oxide pair
Gaseous hydrogen fluoride has this characteristic of stronger adsorption capacity, is directly used as absorption by the use of raw materials for production-aluminum oxide of aluminium electroloysis
Agent, the pernicious gas such as hydrogen fluoride in aluminium electrolytic flue is adsorbed, in two abundant contact processes of gas-solid, hydrogen fluoride is oxidized aluminium
Adsorb, the dust brought out in reacted aluminum oxide and electrolytic cell, the combination pocket type of parallel configuration is respectively enterd by smoke pipe
Deduster is isolated by filtration, and the fluoro-containing alumina of recovery, which can return to, continues production and application in electrolytic cell, and flue gas passes through after purification
Smoke exhaust fan is sent into chimney emptying.Due to the heat that containing substantial amounts of heat, this mode can not be in recovered flue gas in flue gas, make
Into heat waste, and the removing such as sulfur dioxide, hydrogen fluoride, dust is not thorough, is unfavorable for environmental protection after emptying.
Utility model content
The purpose of this utility model is to provide a kind of aluminium cell Multi-point smoke gas purification recovery system, and dust removing effects are more
Good, the contaminant removal such as sulfur dioxide, hydrogen fluoride is more thorough, and can recovery section heat, reduce the waste of heat energy.
What the purpose of this utility model was realized in：A kind of aluminium cell Multi-point smoke gas purification recovery system, including
More diversity tracheaes, whole diversity tracheaes are connected with a main header, and the main header is connected with dust cleaning case, the dedusting
Case includes the casing being vertically arranged, and the side wall of the casing is provided with air inlet, and the air inlet is connected with main header, described
The bottom half of the lower section of air inlet is provided with dismountable dust-collecting box, and dust-break is provided with the cabinets cavity above air inlet
Cover, the dust-blocking cover is the prismatic table shape cover body of open at both ends, and its small end is upward, and big end is down；It is provided with out at the top of casing
Stomata, the venthole are connected with the first delivery pipe, bottom of first delivery pipe after a heat exchanger with a spray column
Communicate, scavenging solution import and flue gas row's mouth are provided with the top of the spray column, the bottom of spray column is matched somebody with somebody by drain pipe and one
Liquid pool communicates, and described with transfer tube is provided with liquid pool, the transfer tube is connected with feed tube, and the feed tube enters with scavenging solution
Mouth communicates；The flue gas row mouth is connected with the second delivery pipe, and second delivery pipe is connected with alumina adsorption tank.
Further, the alumina adsorption tank includes tank body, and the inner chamber of the tank body is separated into by vertical dividing plate
First absorbing cavity and the second absorbing cavity, the bottom of first absorbing cavity are provided with the first air inlet pipe, and top is provided with first row
Blank pipe, the first valve is provided with first air inlet pipe and the first evacuated tube；The side wall of first absorbing cavity is provided with
One switch gate, the first absorbing cavity are internally provided with dismountable first alumina packing plate；The bottom of second absorbing cavity
The second air inlet pipe is provided with, top is provided with the second evacuated tube, second is provided with second air inlet pipe and the second evacuated tube
Valve；The side wall of second absorbing cavity is provided with second switch door, and the second absorbing cavity is internally provided with dismountable second
Alumina packing plate.
Further, the madial wall of first absorbing cavity and the second absorbing cavity is each provided with a pair of horizontal supporting tables,
The side of the supporting table offers the locating slot of dove-tail form, the first alumina packing plate and the second alumina packing plate
Edge is provided with the frame of dove-tail form, and the frame is plugged in locating slot.
Further, it is described with being provided with agitator in liquid pool.
Further, the bottom with liquid pool is provided with blow-off pipe, and Pulp pump is provided with the blow-off pipe.
Further, the dust-collecting box is the drawer type box body coordinated with box body-sliding.
The beneficial effects of the utility model are：Every diversity tracheae is connected with the smoke exhaust pipe of an electrolytic cell, by each electrolysis
Main header is delivered to after the fume collection of groove, high-temperature flue gas converges in main header is combined into dust cleaning case, is carried in flue gas
Part dust stopped and be settled down in dust-collecting box by the dust-blocking cover of prismatic table shape, make dust content it is relatively low, in dust-collecting box
Dust main component is aluminum oxide, recoverable.Then, flue gas enters heat exchanger by the first delivery pipe, passes through heat exchange
Mode uses the heating such as other media such as water for factory building, and the temperature of itself reduces, and heat is utilized.It is used for liquid pool
Configuration and storage scavenging solution, scavenging solution enter spray column in the presence of transfer tube by feed tube, and flue gas is from spray column
Bottom enters, and both inversely contact, in the acidic materials such as carbon dioxide, sulfur dioxide, hydrogen fluoride in flue gas and cleaning fluid
Alkali is reacted and removed, while the dust in flue gas is further washed off, and flue gas is purified.Finally, flue gas passes through aluminum oxide
The material such as adsorption tanks, the fluoride of residual is oxidized aluminium absorption, finally empties.The system passes through natural subsidence, washing, absorption etc.
Equipment is repeatedly purified to flue gas, improves clean-up effect, is reduced the pollutant residual in gas, can directly be emptied.Together
When can be in recovered flue gas heat, reduce thermal waste, improve heat utilization efficiency.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the scheme of installation of the first alumina packing plate and the second alumina packing plate.
Reference：1-diversity tracheae；2-main header；3-dust cleaning case；4-dust-collecting box；5-dust-blocking cover；6-the
One delivery pipe；7-heat exchanger；8-spray column；9-feed tube；10-match somebody with somebody liquid pool；11-transfer tube；12-drain pipe；13—
Second delivery pipe；14-alumina adsorption tank；15-dividing plate；16-the first absorbing cavity；17-the second absorbing cavity；18-the first enters
Tracheae；19-the first evacuated tube；20-the first valve；21-first switch door；22-the first alumina packing plate；23-the second
Air inlet pipe；24-the second evacuated tube；25-the second valve；26-second switch door；27-the second alumina packing plate；28-
Support platform；29-frame；30-agitator；31-blow-off pipe；32-Pulp pump.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, a kind of aluminium cell Multi-point smoke gas purification recovery system of the present utility model, including it is more
Root diversity tracheae 1, the material that diversity tracheae 1 is corroded using high temperature resistant, acid resistance, the row of the every electrolytic cell of diversity tracheae 1 and one
Smoke pipe is connected, and for collecting the flue gas in each electrolytic cell, whole diversity tracheaes 1 is connected with a main header 2, for by cigarette
Gas is delivered to main header 2 and focused on.The main header 2 is connected with dust cleaning case 3, and the dust cleaning case 3 includes being vertically arranged
Cuboid stainless steel casing, the side wall of the casing is provided with air inlet, and the air inlet is connected with main header 2, described
The bottom half of the lower section of air inlet is provided with dismountable dust-collecting box 4, and dust-break is provided with the cabinets cavity above air inlet
Cover 5, the dust-blocking cover 5 is the prismatic table shape cover body of open at both ends, and its small end is upward, and big end is down.The part carried in flue gas
Dust is stopped and is settled down in dust-collecting box 4 by the dust-blocking cover 5 of prismatic table shape, makes relatively low, the dust in dust-collecting box 4 of the content of dust
Main component is aluminum oxide, recoverable.Venthole is provided with the top of casing, the venthole is connected with the first delivery pipe
6, bottom of first delivery pipe 6 with a spray column 8 after a heat exchanger 7 is communicated, and cold water is passed through into heat exchanger 7, cold
Water is changed into hot water with high-temperature flue gas heat exchange, is available for other stations of factory building to use, and the temperature of flue gas reduces, and avoids setting subsequent treatment
It is standby to cause high temperature corrosion, and partial heat has been reclaimed, reduce thermal waste.The top of the spray column 8 is provided with scavenging solution
Import and flue gas row's mouth, the bottom of spray column 8 communicated by drain pipe 12 with one with liquid pool 10, it is described match somebody with somebody be provided with liquid pool 10
Transfer tube 11, the transfer tube 11 are connected with feed tube 9, and the feed tube 9 communicates with scavenging solution import.It is used to match somebody with somebody with liquid pool 10
Put and store scavenging solution, scavenging solution uses aqua calcis, during configuration, lime is put into and reacted with liquid pool 10, lime with water
Calcium hydroxide is generated, excessive lime can be disposably added, obtain the aqua calcis of saturation, unnecessary calcium hydroxide precipitation
With the bottom of liquid pool 10, with the consumption of calcium hydroxide in solution, can be supplemented in time.Driving of the scavenging solution in transfer tube 11
Entered by feed tube 9 from the top of spray column 8 down, and flue gas enters from the bottom of spray column 8, both inversely contact, flue gas
In carbon dioxide, sulfur dioxide, the acidic materials such as hydrogen fluoride and the calcium hydroxide reaction in cleaning fluid and remove, generation it is heavy
Starch matter is eventually settled at the bottom of liquid pool 10, while the dust in flue gas is further washed off, and flue gas is purified.It is described
Flue gas row's mouth is connected with the second delivery pipe 13, and second delivery pipe 13 is connected with alumina adsorption tank 14, alumina adsorption tank
14 inside set alumina adsorption layer, for adsorbing the pollutants such as remaining fluoride, gas is further purified, reach row
Put standard.
The limited sorption capacity of aluminum oxide, need to change filler plate at regular intervals, ensure clean-up effect, in order to avoid
Fume treatment is interrupted when changing filler plate, the alumina adsorption tank 14 includes the tank body of stainless steel, the inner chamber of the tank body
First absorbing cavity 16 and the second absorbing cavity 17 are separated into by vertical dividing plate 15, the bottom of first absorbing cavity 16 is provided with
First air inlet pipe 18, top are provided with the first evacuated tube 19, and is provided with the evacuated tube 19 of the first air inlet pipe 18 and first
One valve 20；The side wall of first absorbing cavity 16 is provided with first switch door 21, and the first being internally provided with for absorbing cavity 16 can
First alumina packing plate 22 of dismounting；The bottom of second absorbing cavity 17 is provided with the second air inlet pipe 23, and top is provided with
Second evacuated tube 24, the second valve 25 is provided with the evacuated tube 24 of the second air inlet pipe 23 and second；Second absorbing cavity
17 side wall is provided with second switch door 26, and the second absorbing cavity 17 is internally provided with dismountable second alumina packing plate
27.When changing the first alumina packing plate 22 in the first absorbing cavity 16, the first valve 20 is closed, the second valve 25 keeps opening
Open, gas enters the second absorbing cavity 17, is handled by aluminium dioxide filler plate 27；Change the titanium dioxide in the second absorbing cavity 17
During Al filler plate 27, the first valve 20 is opened, closes the second valve 25, gas enters the first absorbing cavity 16, by the first aluminum oxide
Filler plate 22 is handled, and such alternate treatment can avoid the whole system when one of them goes wrong from all stopping flue gas
Processing, advantageously ensures that treatment effeciency.
In order to facilitate dismounting, the madial wall of the absorbing cavity 17 of the first absorbing cavity 16 and second be each provided with a pair it is horizontal
Supporting table 28, the side of the supporting table 28 offer the locating slot of dove-tail form, the first alumina packing plate 22 and second
The edge of alumina packing plate 27 is provided with the frame 29 of dove-tail form, and the frame 29 is plugged in locating slot.
In order to ensure lime fast reaction and dissolving, ensure the even concentration of scavenging solution, it is described with being provided with liquid pool 10
Agitator 30.
The bottom with liquid pool 10 is provided with blow-off pipe 31, and Pulp pump 32, Mei Geyi is provided with the blow-off pipe 31
Section time, Pulp pump 32 extract the precipitation with the bottom of liquid pool 10 out.
The dust-collecting box 4 is the drawer type box body coordinated with box body-sliding, easy disassembly, is advantageous to remove in dust-collecting box 4
Dust.
The system is repeatedly purified by equipment such as natural subsidence, washing, absorption to flue gas, improves clean-up effect,
Reduce the pollutant residual in gas, can directly empty.Heat that simultaneously can be in recovered flue gas, reduces thermal waste, carries
High heat utilization efficiency.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (6)
- A kind of 1. aluminium cell Multi-point smoke gas purification recovery system, it is characterised in that：Including more diversity tracheaes（1）, all Diversity tracheae（1）With a main header（2）It is connected, the main header（2）It is connected with dust cleaning case（3）, the dust cleaning case（3） Including the casing being vertically arranged, the side wall of the casing is provided with air inlet, the air inlet and main header（2）It is connected, institute The bottom half for stating the lower section of air inlet is provided with dismountable dust-collecting box（4）, it is provided with the cabinets cavity above air inlet Dust-blocking cover（5）, the dust-blocking cover（5）For the prismatic table shape cover body of open at both ends, and its small end is upward, and big end is down；The top of casing Portion is provided with venthole, and the venthole is connected with the first delivery pipe（6）, first delivery pipe（6）By a heat exchanger（7） Afterwards with a spray column（8）Bottom communicate, the spray column（8）Top be provided with scavenging solution import and flue gas row mouth, spray Tower（8）Bottom pass through drain pipe（12）Match somebody with somebody liquid pool with one（10）Communicate, it is described to match somebody with somebody liquid pool（10）Inside it is provided with transfer tube（11）, The transfer tube（11）It is connected with feed tube（9）, the feed tube（9）Communicated with scavenging solution import；The flue gas row mouth connection There is the second delivery pipe（13）, second delivery pipe（13）It is connected with alumina adsorption tank（14）.
- A kind of 2. aluminium cell Multi-point smoke gas purification recovery system according to claim 1, it is characterised in that：The oxygen Change aluminium adsorption tanks（14）Including tank body, the inner chamber of the tank body is by vertical dividing plate（15）It is separated into the first absorbing cavity（16）With Second absorbing cavity（17）, first absorbing cavity（16）Bottom be provided with the first air inlet pipe（18）, top is provided with first row Blank pipe（19）, first air inlet pipe（18）With the first evacuated tube（19）On be provided with the first valve（20）；Described first absorbs Chamber（16）Side wall be provided with first switch door（21）, the first absorbing cavity（16）Be internally provided with dismountable first aluminum oxide Filler plate（22）；Second absorbing cavity（17）Bottom be provided with the second air inlet pipe（23）, top is provided with the second evacuated tube （24）, second air inlet pipe（23）With the second evacuated tube（24）On be provided with the second valve（25）；Second absorbing cavity （17）Side wall be provided with second switch door（26）, the second absorbing cavity（17）Dismountable second aluminum oxide that is internally provided with fill out Flitch（27）.
- A kind of 3. aluminium cell Multi-point smoke gas purification recovery system according to claim 2, it is characterised in that：Described One absorbing cavity（16）With the second absorbing cavity（17）Madial wall be each provided with a pair of horizontal supporting tables（28）, the supporting table （28）Side offer the locating slot of dove-tail form, the first alumina packing plate（22）With the second alumina packing plate（27） Edge be provided with the frame of dove-tail form（29）, the frame（29）It is plugged in locating slot.
- A kind of 4. aluminium cell Multi-point smoke gas purification recovery system according to claim 1, it is characterised in that：It is described to match somebody with somebody Liquid pool（10）Inside it is provided with agitator（30）.
- A kind of 5. aluminium cell Multi-point smoke gas purification recovery system according to claim 1, it is characterised in that：It is described to match somebody with somebody Liquid pool（10）Bottom be provided with blow-off pipe（31）, the blow-off pipe（31）On be provided with Pulp pump（32）.
- A kind of 6. aluminium cell Multi-point smoke gas purification recovery system according to claim 1, it is characterised in that：The collection Dirt box（4）For the drawer type box body coordinated with box body-sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721020249.4U CN207137612U (en) | 2017-08-15 | 2017-08-15 | A kind of aluminium cell Multi-point smoke gas purification recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721020249.4U CN207137612U (en) | 2017-08-15 | 2017-08-15 | A kind of aluminium cell Multi-point smoke gas purification recovery system |
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| CN207137612U true CN207137612U (en) | 2018-03-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787547A (en) * | 2019-12-04 | 2020-02-14 | 上海安居乐环保科技股份有限公司 | Waste lithium battery dismantling waste gas treatment system and method |
| RU2742987C1 (en) * | 2020-09-24 | 2021-02-12 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Method for defluorination and isolation of anhydrous sodium sulphate from working gas cleaning solutions of aluminum electrolysers |
| CN112546821A (en) * | 2020-11-03 | 2021-03-26 | 蒋昊昀 | Continuous converting in-process sulphur recovery unit of copper matte |
-
2017
- 2017-08-15 CN CN201721020249.4U patent/CN207137612U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787547A (en) * | 2019-12-04 | 2020-02-14 | 上海安居乐环保科技股份有限公司 | Waste lithium battery dismantling waste gas treatment system and method |
| RU2742987C1 (en) * | 2020-09-24 | 2021-02-12 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Method for defluorination and isolation of anhydrous sodium sulphate from working gas cleaning solutions of aluminum electrolysers |
| CN112546821A (en) * | 2020-11-03 | 2021-03-26 | 蒋昊昀 | Continuous converting in-process sulphur recovery unit of copper matte |
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