CN102061488B - Electrolytic flue gas dry purification system - Google Patents
Electrolytic flue gas dry purification system Download PDFInfo
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- CN102061488B CN102061488B CN2009102198251A CN200910219825A CN102061488B CN 102061488 B CN102061488 B CN 102061488B CN 2009102198251 A CN2009102198251 A CN 2009102198251A CN 200910219825 A CN200910219825 A CN 200910219825A CN 102061488 B CN102061488 B CN 102061488B
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- flue gas
- gas dry
- purifying system
- electrolysis flue
- dry purifying
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000003546 flue gas Substances 0.000 title claims abstract description 49
- 238000000746 purification Methods 0.000 title abstract description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 239000010881 fly ash Substances 0.000 claims description 73
- 238000005868 electrolysis reaction Methods 0.000 claims description 49
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 24
- 238000000605 extraction Methods 0.000 claims description 17
- 238000012216 screening Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005243 fluidization Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Treating Waste Gases (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
本发明涉及一种净化系统，尤其涉及一种电解烟气干法净化系统，由下述结构构成：除尘器，设在除尘器顶部的除尘器出口管道，与除尘器连接的反应器，与反应器连接的汇总管道，除尘器的底部与载氟氧化铝贮仓连通，反应器与新鲜氧化铝贮仓连通，除尘器出口管道通过主引风机与烟囱连通。本发明的优点效果：通过改变管道配置形式，降低局部阻力，进而使净化系统整个沿程阻力降低，节省能耗；提高净化效果，具有占地面积小、净化效率高、能耗低、维修量小、控制程度高等优点。
The invention relates to a purification system, in particular to an electrolytic flue gas dry purification system, which consists of the following structure: a dust collector, an outlet pipe of the dust collector installed on the top of the dust collector, a reactor connected to the dust collector, and a reaction The summary pipeline connected to the filter, the bottom of the dust collector is connected with the fluorine-containing alumina storage bin, the reactor is connected with the fresh alumina storage bin, and the outlet pipe of the dust collector is connected with the chimney through the main induced draft fan. The advantages and effects of the present invention: by changing the configuration of the pipeline, local resistance is reduced, thereby reducing the resistance along the entire purification system and saving energy consumption; improving the purification effect, with small footprint, high purification efficiency, low energy consumption, and maintenance. Small size and high degree of control.
Description
Technical field
The present invention relates to a kind of purification system, relate in particular to a kind of electrolysis flue gas dry purifying system, it is mainly used in aluminum electrolysis industry electrolysis flue gas dry cleaning workshop.
Background technology
At aluminum electrolysis industry, aluminium electrolysis process is to be ionogen with the alumina melt, is that electrode carries out electrolysis with the carbon materials, on negative electrode, separates out liquid metallic aluminium, on anode, produces with CO
2It is main anodic gas.Also can give out with hydrogen fluoride, fluorochemical, dust etc. simultaneously is master's atmospheric polluting material, and these gases and anodic gas are referred to as electrolysis flue gas.
Spread in the inner electrolysis flue gas of potroom labor condition is worsened, have a strong impact on the healthy of direct labor.Electrolysis flue gas is diffused into plant area on every side with atmosphere pollution, brings great harm to development and people's lives that husbandry is produced.According to the requirement of national environmental standard GB16297-1996 " discharge standard of air pollutants ", must administer electrolysis flue gas, carry out qualified discharge.Fluorochemical in the electrolysis flue gas also is the important source material of electrolysis production simultaneously, recycles to have great economic worth.Therefore aluminum electrolysis industry all need dispose flue gas purification system.
The electrolysis flue gas purification system requires to have the various configurations form according to field condition and processing condition.The electrolytic series configuration one cover purification system of general 5～60,000 tons/annual capacity of past, purification system is smaller, and collocation form is more single.Along with production-scale expansion, general corresponding 10～130,000 tons/year or more massive Electrolytic Aluminum Series dispose a cover gas cleaning facility now.Mainly contain following two kinds of forms: (1) 20～32 blowback wind fly-ash separator adds 20～32 VRI reactor drums and adds 2～6 main induced draft fans; (2) 28～32 pulse dust collectors add 28～32 pipeline reactors and add 2～6 main induced draft fans.More than two kinds of collocation forms, can both satisfy the regulation of domestic environmental emission standard at present.But above two kinds of systems exist low, the shortcomings such as air-flow is unstable, floor space is big, cost is high, operation and maintenance cost is high, energy consumption height of the mutual subsequent use degree of system, the most important thing is further to improve difficulty of gas cleaning efficiency ratio.
Because improving constantly of national environmental standard requires the requirement that purification system is long-term, stablize, satisfy effectively national environmental standard now, considers necessity that above system also has further improvement to improve in addition from energy-saving and cost-reducing aspect.
Summary of the invention
In order to solve the problems of the technologies described above the present invention a kind of electrolysis flue gas dry purifying system is provided, purpose is to improve purification efficiency, reduction investment, the stability that increases system, minimizing running cost, prolongs the work-ing life of equipment.
Realize through following technical scheme that for reaching above-mentioned purpose the present invention the electrolysis flue gas dry purifying system is characterized in that being made up of following structure: fly-ash separator; Be located at the fly-ash separator outlet conduit of dust remover roof; The reactor drum that is connected with fly-ash separator, what be connected with reactor drum gathers pipeline, and the bottom of fly-ash separator is communicated with the fluorinated alumina bunker; Reactor drum is communicated with the fresh aluminum oxide bunker, and the fly-ash separator outlet conduit is communicated with chimney through main induced draft fan.
Described gathering is provided with the reactor drum preceding pipeline between pipeline and the reactor drum.
Be provided with the reaction early gate between described reactor drum and the reactor drum preceding pipeline.
Described reactor drum is the multipoint mode reactor drum of VRI reactor drum or Venturi reactor drum or centre-all around.
Described fly-ash separator outlet conduit is provided with the fly-ash separator outlet valve.
Described fresh aluminum oxide bunker is communicated with reactor drum through the fresh aluminum oxide chute.
Be provided with vibratory screening apparatus between described fresh aluminum oxide bunker and the fresh aluminum oxide chute.
Be provided with rotometer between described fresh aluminum oxide chute and the vibratory screening apparatus.
The bottom of described fly-ash separator is communicated with through the fluorinated alumina chute with the fluorinated alumina bunker.
Described fly-ash separator is pulse dust collector or blowback wind fly-ash separator.
Described fluorinated alumina chute is provided with penumatic elevator.
Described penumatic elevator is connected with Root's blower with penumatic elevator.
Described main induced draft fan is the 3-6 platform.
The described pipeline that gathers is connected with Root's blower with fluidization.
Described fluorinated alumina bunker and fresh aluminum oxide bunker are individual layer or double-deck bunker.
Described fly-ash separator is connected with pressure-pot.
Described centre-the multipoint mode reactor drum is made up of following structure all around: housing; Being located at the inlet mouth of housing bottom, being located at the air outlet of case top, is the hybrid channel between inlet mouth and the air outlet; Be provided with the material chamber in the outside of the hybrid channel, middle part of housing; Material chamber first feed-pipe outer with being located at housing communicates, and the bottom sides of material chamber is provided with the extraction line that is inserted into the hybrid channel, on housing, is provided with second feed-pipe that is inserted into the hybrid channel.
Below, described material chamber is provided with the reactor drum air chamber, and the reactor drum air chamber is provided with reactor stream wind transmission pipe with housing and communicates.
Be provided with air permeable plate between described material chamber and the reactor drum air chamber.
The quantity of described first feed-pipe and second feed-pipe is 1-10.
The discharge port of described second feed-pipe is located at the center of hybrid channel.
Described second feed-pipe is steel pipe or circular chute pipeline.
The described second feed-pipe feed end is higher than discharge end.
Described second feed-pipe is located at the bottom of top, discharge port of extraction line or concordant with extraction line.
The quantity of described extraction line is at 1～30.
Described extraction line be shaped as circle or rectangular steel tube.
The cross section of the hybrid channel between described inlet mouth and the material chamber is trapezoidal.
Described housing is circular, square or rectangle.
The feed end of described second feed-pipe and feeding inlet.
The top of described material chamber seals.
Said fly-ash separator is the pre-separation pulse bag type dust collector; Constitute by following structure; Comprise upper box body, middle part casing, be located at the fly-ash separator air outlet of upper box body and be located at the fly-ash separator inlet mouth of middle part lower box that in the casing of middle part, be provided with winding-up pipe, nozzle, skeleton and cloth bag, the below of middle part casing is a lower part box; It is characterized in that described fly-ash separator inlet mouth is located at casing top, middle part; Between fly-ash separator inlet mouth and skeleton, be provided with division board, skeleton is provided with cloth bag, and the below of division board is provided with flow deflector.
Described skeleton below is provided with flow deflector.
The height of described skeleton is lower than the height of division board.
Described skeletal fixation is on card.
Described card is provided with the hole, and the hole is that asymmetric arrangement is on card.
The top of described card is provided with winding-up pipe and nozzle, and winding-up pipe and nozzle are located at the bottom of upper box body.
Described nozzle is provided with drainage tube.
Described winding-up pipe is connected with the outer electromagnetic impulse valve of upper box body.
Be provided with gas bag between described winding-up pipe and the electromagnetic impulse valve.
Described electromagnetic impulse valve is located at the top or the sidepiece of upper box body.
Described skeleton merogenesis is provided with, and is the 2-10 joint.
Described upper box body and lower part box are provided with access door.
Described upper box body is provided with vision slit.
The flow deflector of described division board below is one or more levels.
Described lower part box is provided with upflow tube, pulp cutlet and cycle stock mouth.
Described fly-ash separator air outlet is located at the top of upper box body.
Described fly-ash separator air outlet pipeline gathers the laggard blower fan of going into.
Described blower fan is parallelly connected collocation form.
Described fly-ash separator inlet mouth gathers the pipeline that gathers that pipeline is a potroom smoke evacuation arm.
Described reactor drum is parallel connection.
Advantageous effect of the present invention: through changing the duct arrangement form, reduce shock resistance, and then the whole on-way resistance of purification system is reduced, save energy consumption; Through adopting reactor drum, improve the gas-solid mixed effect, and then improve decontamination effect improving; Realize the fly-ash separator Chalk-dust filtering, adsorb hydrofluoric effect through adopting fly-ash separator; Through changing fly-ash separator configured in one piece form, saved the floor space of system; Through optimizing the fly-ash separator outlet conduit, reach the optimization of main induced draft fan pipeline, realize the subsequent use each other of blower fan, and choose rational operating parameter according to different industrial and minerals; Optimization through pipeline before and after the fly-ash separator improves, and realizing influences subsequent use each other between the fly-ash separator to the total system equilibrated when reducing by a fly-ash separator maintenance to greatest extent; Through the optimization of fresh aluminum oxide handling equipment and collocation form, realize that fresh aluminum oxide is even, stable, quantitative feed; Through returning the change of aluminum oxide collocation form, realize the subsequent use each other of penumatic elevator,, penumatic elevator do not influence the steady running of system when keeping in repair; Through optimizing purification system pipeline valve structure formation, regular air flow line makes steady air current at the uniform velocity get into reactor drum, increases the mixed effect of reactor drum, has prolonged work-ing life; Through adopting vibratory screening apparatus, it is smooth and easy continuously to guarantee that the inner raw material of purification system is carried, and guarantees the steady running of system.Have that floor space is little, purification efficiency is high, energy consumption is low, maintenance capacity is little, the control degree advantages of higher.
Description of drawings
Fig. 1 is a planar configuration of the present invention.
Fig. 2 is a sectional view of the present invention.
Fig. 3 is a schema of the present invention.
Fig. 4 is the structural representation of fly-ash separator of the present invention.
Fig. 5 is the side-view of Fig. 4.
Fig. 6 is the structural representation of winding-up pipe, nozzle and drainage tube in the fly-ash separator.
Fig. 7 is the structural representation of reactor drum of the present invention.
Among the figure: 1, fly-ash separator; 2, main induced draft fan; 3, gather pipeline; 4, fly-ash separator outlet conduit; 5, chimney; 6, fly-ash separator outlet valve; 7, reactor drum preceding pipeline; 8, reactor drum; 9, reactor drum early gate; 10, fresh aluminum oxide bunker; 11, fluorinated alumina bunker; 12, fresh aluminum oxide chute; 13, fluorinated alumina chute; 14, penumatic elevator; 15, penumatic elevator is used Root's blower; 16, Root's blower is used in fluidization; 17, centrifugal high pressure fan; 18, rotometer; 19, vibratory screening apparatus; 20, circulation chute; 22, pressure-pot; 23, first feed-pipe; 24, material chamber; 25, reactor drum air chamber; 26, reactor stream wind transmission pipe; 27, air outlet; 28, extraction line; 29, opening for feed; 30, second feed-pipe; 31, inlet mouth; 32, air permeable plate; 33, hybrid channel; 34, housing; 35, fly-ash separator inlet mouth; 36, fly-ash separator air outlet; 37, division board; 38, flow deflector; 39, middle part casing; 40, skeleton; 41, card; 42, winding-up pipe; 43, nozzle; 44, upper box body; 45, electromagnetic impulse valve; 46, lower part box; 47, upflow tube; 48, pulp cutlet; 49, cycle stock mouth; 50, access door; 51, vision slit; 52, drainage tube; 53, gas bag.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
Electrolysis flue gas dry purifying system shown in Fig. 1-3 is made up of following structure: fly-ash separator 1 is located at the fly-ash separator outlet conduit 4 at fly-ash separator 1 top; The reactor drum 8 that is connected with fly-ash separator 1; What be connected with reactor drum 8 gathers pipeline 3, and the bottom of fly-ash separator 1 is communicated with fluorinated alumina bunker 11, and reactor drum 8 is communicated with fresh aluminum oxide bunker 10; Fly-ash separator outlet conduit 4 is communicated with chimney 5 through main induced draft fan 2; Main induced draft fan 2 is the 3-6 platform, gathers between pipeline 3 and the reactor drum 8 to be provided with reactor drum preceding pipeline 7, is provided with reaction early gate 9 between reactor drum 8 and the reactor drum preceding pipeline 7; Fly-ash separator outlet conduit 4 is provided with fly-ash separator outlet valve 6; Fresh aluminum oxide bunker 10 is communicated with reactor drum 8 through fresh aluminum oxide chute 12; Be provided with vibratory screening apparatus 19 between fresh aluminum oxide bunker 10 and the fresh aluminum oxide chute 12; Be provided with rotometer 18 between fresh aluminum oxide chute 12 and the vibratory screening apparatus 19, the bottom of fly-ash separator 1 is communicated with through fluorinated alumina chute 13 with fluorinated alumina bunker 11, and fluorinated alumina chute 13 is provided with penumatic elevator 14; Penumatic elevator 14 is connected with Root's blower 15 with penumatic elevator; Gather pipeline 3 and be connected with Root's blower 16 with fluidization, fluorinated alumina bunker 11 is individual layer or double-deck bunker with fresh aluminum oxide bunker 10, and fly-ash separator 1 is connected with pressure-pot 22.Circulation chute 20 is used to connect the cycle stock mouth 49 and reactor drum preceding pipeline 7 on the fly-ash separator 1, and centrifugal blower 17 provides power for fresh aluminum oxide chute 12, fluorinated alumina chute 13 and circulation chute 20; Fly-ash separator air outlet pipeline gathers the laggard blower fan of going into; Blower fan is parallelly connected collocation form; The fly-ash separator inlet mouth gathers the pipeline that gathers that pipeline is a potroom smoke evacuation arm; Reactor drum is parallel connection.
Reactor drum 8 is VRI reactor drum or Venturi reactor drum 17, or centre as shown in Figure 7-the multipoint mode reactor drum is made up of following structure all around: housing 34 is located at the inlet mouth 31 of housing bottom; Being located at the air outlet 27 of case top, is hybrid channel 33 between inlet mouth 31 and the air outlet 27, is provided with material chamber 24 in the outside of the hybrid channel, middle part 33 of housing 34; Material chamber 24 first feed-pipe 23 outer with being located at housing communicates, and the bottom sides of material chamber 24 is provided with the extraction line 28 that is inserted into hybrid channel 11, on housing 34, is provided with second feed-pipe 30 that is inserted into hybrid channel 11; Material 24 belows, chamber are provided with reactor drum air chamber 25; Reactor drum air chamber 25 is provided with reactor stream wind transmission pipe 26 with housing 34 and communicates, and the quantity that is provided with air permeable plate 32, the first feed-pipes 23 and second feed-pipe 30 between material chamber 24 and the reactor drum air chamber 25 is 1-10; The discharge port of second feed-pipe 30 is located at the center of hybrid channel 11; Second feed-pipe 30 is steel pipe or circular chute pipeline, and second feed-pipe, 30 feed ends are higher than discharge end, and second feed-pipe 30 is located at the bottom of top, extraction line 28 of extraction line 28 or concordant with extraction line 28; The quantity of extraction line 28 is at 1～30; Extraction line 28 be shaped as circle or rectangular steel tube, the cross section of the hybrid channel 11 between inlet mouth 31 and the material chamber 24 is trapezoidal, housing 34 is circular, square or rectangle; The feed end of second feed-pipe 30 communicates with opening for feed 29, and the top of material chamber 24 seals.Every reactor drum guarantees feed error≤10% of every reactor drum fresh aluminum oxide all with the independent feed of chute.
Fly-ash separator 1 is pulse dust collector or blowback wind fly-ash separator.Or the pre-separation pulse bag type dust collector is made up of following structure shown in Fig. 4-6, comprises upper box body 44, middle part casing 39, is located at the fly-ash separator air outlet 36 of upper box body 44 and is located at the fly-ash separator inlet mouth 35 of casing 39 bottoms, middle part, in middle part casing 39, being provided with winding-up pipe 42, nozzle 43, skeleton 40 and cloth bag; The below of middle part casing 39 is a lower part box 46, and fly-ash separator inlet mouth 35 is located at casing 39 tops, middle part, between fly-ash separator inlet mouth 39 and skeleton 40, is provided with division board 37; Skeleton 40 is provided with cloth bag, and the below of division board 37 is provided with flow deflector 38, and skeleton 40 belows are provided with flow deflector 38; The height of skeleton 40 is lower than the height of division board 37, and the skeleton merogenesis is provided with, and is the 2-10 joint; Skeleton 40 is fixed on the card 41, and card 41 is provided with the hole, and the hole is that asymmetric arrangement is on card 41; The top of card 41 is provided with jet pipe 42 and nozzle 43, and winding-up pipe 42 and nozzle 43 are located at the bottom of upper box body 44, and nozzle 43 belows are provided with drainage tube 52; Winding-up pipe 42 is connected with upper box body 44 outer electromagnetic impulse valves 45, is provided with gas bag 53 between winding-up pipe 42 and the electromagnetic impulse valve 45, and electromagnetic impulse valve 45 is located at the top or the sidepiece of upper box body 44; Upper box body 44 is provided with access door 50 with lower part box 46, and upper box body 44 is provided with vision slit 51, and the flow deflector 38 of division board 37 belows is one or more levels; Lower part box 46 is provided with upflow tube 47, pulp cutlet 48 and cycle stock mouth 49, and fly-ash separator air outlet 36 is located at the top of upper box body 44.
Electrolysis flue gas imports the electrolysis flue gas purification system through smoke exhaust pipe road outside gas collecting skirt and the workshop; At first get into and gather pipeline 3; Reactor drum preceding pipeline 7 with gather pipeline 3 and be communicated with, and reactor drum preceding pipeline 7 is parallel connection configurations, can make reactor drum 8 and fly-ash separator 1 subsequent use each other like this.Flue gas through reactor drum preceding pipeline 7 gets into reactor drum early gate 9, and reactor drum early gate 9 plays the effect of regular air flow line.Flue gas through reactor drum early gate 9 gets into reactor drum 8, and flue gas mixes with aluminum oxide from fresh aluminum oxide chute 12 and circulation chute 20 in reactor drum 8 and fly-ash separator preceding pipeline, accomplishes most absorption reaction.Mixed flue gas gets into fly-ash separator 1, accomplishes gas solid separation, and the aluminum oxide that separates gets into the fluorinated alumina bunker through fluorinated alumina chute 13 and penumatic elevator 14, and the electrolysis Workshop Production is used.Gas from fly-ash separator 1 filters out gets into induced draft fan 2 through fly-ash separator outlet valve 6 and fly-ash separator outlet conduit 4, and under the effect of induced draft fan 2, gas up to standard enters atmosphere through chimney 5.Fresh aluminum oxide is discharged through fresh aluminum oxide bunker 10, at first removes impurity wherein through vibratory screening apparatus 19,18 stable through rotometer then, accurately, quantitatively to fresh aluminum oxide chute feed.Penumatic elevator uses Root's blower 15 as penumatic elevator 14 power to be provided; Fluidization roots blower 16 is fly-ash separator or reactor drum, or chute provides fluidized wind; Centrifugal high pressure fan 17 provides fluidized wind for chute or reactor drum; Pressure-pot 22 provides pressurized air for fly-ash separator.
Claims (2)
1. electrolysis flue gas dry purifying system; It is characterized in that being made up of following structure: fly-ash separator is located at the fly-ash separator outlet conduit of dust remover roof, the reactor drum that is connected with fly-ash separator; What be connected with reactor drum gathers pipeline; The bottom of fly-ash separator is communicated with the fluorinated alumina bunker, and reactor drum is communicated with the fresh aluminum oxide bunker, and the fly-ash separator outlet conduit is communicated with chimney through main induced draft fan; Reactor drum is middle-multipoint mode reactor drum all around; Middle-the multipoint mode reactor drum is made up of following structure all around: housing; Being located at the inlet mouth of housing bottom, being located at the air outlet of case top, is the hybrid channel between inlet mouth and the air outlet; Be provided with the material chamber in the outside of the hybrid channel, middle part of housing; Material chamber first feed-pipe outer with being located at housing communicates, and the bottom sides of material chamber is provided with the extraction line that is inserted into the hybrid channel, on housing, is provided with second feed-pipe that is inserted into the hybrid channel.
2. electrolysis flue gas dry purifying system according to claim 1 is characterized in that described gathering is provided with the reactor drum preceding pipeline between pipeline and the reactor drum.
3. electrolysis flue gas dry purifying system according to claim 2 is characterized in that being provided with the reaction early gate between described reactor drum and the reactor drum preceding pipeline.
4. electrolysis flue gas dry purifying system according to claim 1 is characterized in that described fly-ash separator outlet conduit is provided with the fly-ash separator outlet valve.
5. electrolysis flue gas dry purifying system according to claim 1 is characterized in that described fresh aluminum oxide bunker is communicated with reactor drum through the fresh aluminum oxide chute.
6. electrolysis flue gas dry purifying system according to claim 5 is characterized in that being provided with vibratory screening apparatus between described fresh aluminum oxide bunker and the fresh aluminum oxide chute.
7. electrolysis flue gas dry purifying system according to claim 6 is characterized in that being provided with rotometer between described fresh aluminum oxide chute and the vibratory screening apparatus.
8. electrolysis flue gas dry purifying system according to claim 1 is characterized in that the bottom of described fly-ash separator is communicated with through the fluorinated alumina chute with the fluorinated alumina bunker.
9. electrolysis flue gas dry purifying system according to claim 8 is characterized in that described fly-ash separator is pulse dust collector or blowback wind fly-ash separator.
10. electrolysis flue gas dry purifying system according to claim 8 is characterized in that described fluorinated alumina chute is provided with penumatic elevator.
11. electrolysis flue gas dry purifying system according to claim 10 is characterized in that described penumatic elevator is connected with Root's blower with penumatic elevator.
12. electrolysis flue gas dry purifying system according to claim 1 is characterized in that described main induced draft fan is the 3-6 platform.
13. electrolysis flue gas dry purifying system according to claim 1 is characterized in that the described pipeline that gathers is connected with Root's blower with fluidization.
14. electrolysis flue gas dry purifying system according to claim 1 is characterized in that described fluorinated alumina bunker and fresh aluminum oxide bunker are individual layer or double-deck bunker.
15. electrolysis flue gas dry purifying system according to claim 1 is characterized in that described fly-ash separator is connected with pressure-pot.
16. electrolysis flue gas dry purifying system according to claim 1 is characterized in that below, described material chamber is provided with the reactor drum air chamber, the reactor drum air chamber is provided with reactor stream wind transmission pipe with housing and communicates.
17. electrolysis flue gas dry purifying system according to claim 16 is characterized in that being provided with air permeable plate between described material chamber and the reactor drum air chamber.
18. electrolysis flue gas dry purifying system according to claim 1, the quantity that it is characterized in that described first feed-pipe and second feed-pipe are 1-10.
19. electrolysis flue gas dry purifying system according to claim 18 is characterized in that the discharge port of described second feed-pipe is located at the center of hybrid channel.
20. electrolysis flue gas dry purifying system according to claim 19 is characterized in that described second feed-pipe is steel pipe or circular chute pipeline.
21. electrolysis flue gas dry purifying system according to claim 20 is characterized in that the described second feed-pipe feed end is higher than discharge end.
22. electrolysis flue gas dry purifying system according to claim 21 is characterized in that described second feed-pipe is located at the bottom of the top of extraction line, discharge port or concordant with extraction line.
23. electrolysis flue gas dry purifying system according to claim 1, the quantity that it is characterized in that described extraction line is at 1 ~ 30.
24. electrolysis flue gas dry purifying system according to claim 23, what it is characterized in that described extraction line is shaped as circle or rectangular steel tube.
25. electrolysis flue gas dry purifying system according to claim 1 is characterized in that the cross section of the hybrid channel between described inlet mouth and the material chamber is trapezoidal.
26. electrolysis flue gas dry purifying system according to claim 1 is characterized in that described housing is circular, square or rectangle.
27. electrolysis flue gas dry purifying system according to claim 22 is characterized in that the feed end and the feeding inlet of described second feed-pipe.
28. electrolysis flue gas dry purifying system according to claim 1 is characterized in that the top of described material chamber seals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210290974.9A CN102851706B (en) | 2009-11-12 | 2009-11-12 | Electrolysis smoke dry purifying system |
| CN2009102198251A CN102061488B (en) | 2009-11-12 | 2009-11-12 | Electrolytic flue gas dry purification system |
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| CN2009102198251A CN102061488B (en) | 2009-11-12 | 2009-11-12 | Electrolytic flue gas dry purification system |
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| CN201210290974.9A Division CN102851706B (en) | 2009-11-12 | 2009-11-12 | Electrolysis smoke dry purifying system |
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| CN102061488A CN102061488A (en) | 2011-05-18 |
| CN102061488B true CN102061488B (en) | 2012-12-19 |
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| CN2009102198251A Expired - Fee Related CN102061488B (en) | 2009-11-12 | 2009-11-12 | Electrolytic flue gas dry purification system |
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| CN102953090B (en) * | 2011-08-29 | 2015-06-03 | 沈阳铝镁设计研究院有限公司 | Bottom air inlet type purification system |
| CN103657277A (en) * | 2012-09-12 | 2014-03-26 | 张家港市宏兴环保设备有限公司 | Multiple-effect bag type dust removing system for smoke |
| CN104694971B (en) * | 2013-12-10 | 2017-01-18 | 沈阳铝镁设计研究院有限公司 | Unpowered revolving airflow device |
| CN103961948B (en) * | 2014-05-16 | 2017-01-18 | 上海智东实业有限公司 | Energy-saving and environment-friendly dust removal equipment |
| CN105986287A (en) * | 2015-02-09 | 2016-10-05 | 河南科达东大国际工程有限公司 | Flue gas purification device |
| CN105624733B (en) * | 2016-03-09 | 2018-02-13 | 新疆大学 | A kind of outer dispensing feeding device of aluminium electrolysis cell and method |
| CN105803489B (en) * | 2016-05-30 | 2019-03-01 | 贵阳铝镁设计研究院有限公司 | The accurate charging process of cyclic oxidation aluminium |
| CN106868549A (en) * | 2017-03-17 | 2017-06-20 | 中铝国际工程股份有限公司 | Communication type pair smoke pipe used for aluminium electrolysis |
| CN108914163A (en) * | 2018-08-16 | 2018-11-30 | 沈阳铝镁科技有限公司 | A kind of dry method aluminium electrolytic flue adsorption cleaning integrated apparatus |
| CN109722680B (en) * | 2019-03-07 | 2024-04-02 | 东北大学设计研究院（有限公司） | Electrolytic flue gas purification smoke exhaust pipe network and resistance balance adjusting method |
| CN110295376B (en) * | 2019-07-12 | 2024-03-22 | 东方电气集团东方锅炉股份有限公司 | Electrolytic aluminum flue gas purification system and process |
| CN110453249B (en) * | 2019-09-10 | 2024-11-22 | 东北大学设计研究院（有限公司） | A mobile negative pressure dust collection and purification system for aluminum electrolysis multifunctional units |
| CN113235135B (en) * | 2021-04-02 | 2024-09-17 | 沈阳铝镁设计研究院有限公司 | Electrolytic bath upper flue gas collecting pipeline system |
| CN116641104A (en) * | 2023-05-31 | 2023-08-25 | 沈阳铝镁设计研究院有限公司 | Distributed electrolysis flue gas purification system |
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| Publication number | Publication date |
|---|---|
| CN102851706B (en) | 2016-01-13 |
| CN102851706A (en) | 2013-01-02 |
| CN102061488A (en) | 2011-05-18 |
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