CN208959532U - A kind of Multifunctional asphalt flue gas purification system - Google Patents

Abstract

The utility model discloses a kind of Multifunctional asphalt flue gas purification systems, its key points of the technical solution are that: including spray column, gas gathering mask, asphalt storage, the first exhaust-gas treatment unit, the second exhaust-gas treatment unit, high pressure blower and chimney；Spray column lower end is provided with and communicated with main air hose, and gas gathering mask passes through the first branch pipe and the second branch pipe respectively with asphalt storage and is connected to setting far from one end of spray column with main air hose；First exhaust-gas treatment unit is connected to setting with spray column top, and the second exhaust-gas treatment unit is connected to setting with spray tower side wall；It is able to meet the purified treatment of a pitch exhaust gas and secondary pitch by the first waste gas purification unit and the second exhaust gas unit, spray dust's work of a pitch exhaust gas and secondary pitch can be met simultaneously by the matching relationship between spray column and the first waste gas purification unit and the second waste gas purification unit, the discharge that the purification gas of a pitch exhaust gas and secondary pitch can be met simultaneously by chimney, substantially reduces equipment cost.

Description

A kind of Multifunctional asphalt flue gas purification system

Technical field

The utility model relates to pitch technical field of waste gas treatment, more specifically, it relates to a kind of Multifunctional asphalt cigarette Gas purification system.

Background technique

Pitch is mainly used for as basic building materials, raw material and fuel, for generally passing through drip in highway construction Green mixing plant is handled, and the environment protection emission index of asphalt mixing plant is two aspects at present.First is that Pollutant emission concentration, The other is pollutant emission blackness.By national Specification, the smoke dust discharge concentration of asphalt mixing plant is≤100mg/ Nm3, flue gas emission blackness are no more than I grades of lingemann blackness.

The flue gas and particle dust of pitch can enter human body by respiratory tract and skin, human body excess intake, can cause Poison occurs symptoms, Long Term Contact pitch and the bitumen flue gas such as dermatitis, eye-blurred, eye conjunctivitis, uncomfortable in chest, headache and easily induces cancer Disease；And flue gas is mainly made of gas and liquid two phases, and liquid phase part is very subtle volatilization condensate, and partial size is different, and gas phase is The mixture of gas with various, pitch smog that is not high for this concentration and extremely dispersing, is able to the organic exhaust gas applied at present There are four types of processing methods: combustion method, and the influence factor of combustion method mainly has two o'clock, and the asphalt smoke concentration the high more is conducive to burning Carry out, second is that burning temperature and with the time control；Electric fishing method catches the more demanding dry type electric fishing collection of smoke temperature to gaseous component Collect efficiency and is no better than zero；The advantages of absorption method is simple process, and purification efficiency is high, the disadvantage is that system resistance is too big, be can reach The advantages of 2000Pa takes up a large area, absorption process is that equipment is simple, easy to maintenance, system resistance is small, and low energy consumption, operating cost It is few, the disadvantage is that there are secondary pollution, purification it is inefficient.

Authorization Notice No. discloses one kind for the Chinese patent of CN205699977U and is used to handle asphalt smoke purifying device, Including gas gathering mask, spray column, Electrostatic purifying box, active carbon case, blower, chimney；The gas gathering mask passes through pipeline and spray Tower is connected, and the spray column includes exhanst gas outlet, packing layer, smoke inlet, valve, liquid outlet, spray head, medicine-chest, the spray It drenches tower side and is equipped with smoke inlet, the spray tower bottom is equipped with liquid outlet, and the liquid outlet top is equipped with valve, described It is equipped with packing layer inside spray column, several spray heads are equipped with above described filler layer, the spray column top is equipped with exhanst gas outlet, institute Spray column bottom side is stated equipped with medicine-chest；The medicine-chest includes elevator pump medical fluid entrance, clear water entrance, is equipped with inside the medicine-chest Elevator pump, the elevator pump are connected by pipeline with spray head, and the medicine-chest top is equipped with medical fluid entrance, clear water entrance；The spray It drenches tower side and is equipped with Electrostatic purifying box, Electrostatic purifying box side is equipped with active carbon case, and the Electrostatic is net Change case and active carbon case in the same pot body；The Electrostatic purifying box include exhaust gas entrance, bracket, first class purification layer, Secondary purification layer, support, Electrostatic purifying box side are equipped with exhaust gas entrance, are equipped with inside the Electrostatic purifying box Bracket, the exhaust gas entrance side are equipped with first class purification layer, and first class purification layer side is equipped with secondary purification layer, the electrostatic It traps and is equipped with support on the downside of purifying box；The active carbon case includes active carbon, the outlet of net gas, if being equipped with inside the active carbon case Dried layer active carbon, active carbon case side are exported equipped with net gas, and the net gas outlet is connected by pipeline with blower, the wind Machine is connected by pipeline with chimney.

Exhaust gas is collected by gas gathering mask and is sent into spray column, the flue gas after preliminary treatment by pipeline into Enter Electrostatic purifying box, finally by processed gas by passing through chimney by blower after active carbon case Adsorption peculiar smell It is discharged；But according to specification and Figure of description it is found that the set purification device is to be merely able to drip by gas gathering mask The bitumen flue gas generated when green just production is collected evolution, but in actual asphalt production industry, the storage of pitch It is also a part of effect, pitch is generally stored in asphalt storage, reheats when in use, and when pitch reheats Secondary bitumen flue gas can be generated, therefore generally requires the upper two pieces of outfit in asphalt production factory and is respectively used to bitumen flue gas of processing With the cleaning equipment of secondary bitumen flue gas, higher cost.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of Multifunctional asphalt gas cleanings System has the effect of reducing cost.

To achieve the above object, the utility model provides following technical solution:

A kind of Multifunctional asphalt flue gas purification system, including spray column, gas gathering mask, asphalt storage, the first exhaust gas processor Group, the second exhaust-gas treatment unit, high pressure blower and chimney；Six layers of packing layer are provided with inside the spray column from the bottom to top, respectively It is provided with activated carbon adsorption layer above layer packing layer, the spray for spraying medical fluid is provided with above each layer activated carbon adsorption layer Drench mechanism；The spray column lower end is provided with and communicated with main air hose, the gas gathering mask and asphalt storage pass through respectively the first branch pipe and Second branch pipe is connected to setting far from one end of spray column with main air hose；The first exhaust-gas treatment unit is connected to spray column top Setting, the second exhaust-gas treatment unit are connected to setting with spray tower side wall, wherein the second exhaust-gas treatment unit and spray The connector of tower is located between third layer packing layer and the 4th layer of packing layer；The first exhaust-gas treatment unit includes 1 group and spray The mechanical filter fume purifying unit and 4 groups of plasma purifier groups in series with each other of tower connection setting are drenched, The second exhaust-gas treatment unit includes that 1 group of mechanical filter fume purifying unit that setting is connected to spray column and 5 groups are mutual Be cascaded plasma purifier group, and Y-piece, the Y-piece are provided with and communicated on the air inlet of the high pressure blower Both ends far from high pressure blower are respectively with the first exhaust-gas treatment unit and the second exhaust-gas treatment unit farthest away from one of spray column The connection setting of plasma purifier group, the air outlet of the high pressure blower are connected to setting with chimney lower end.

So set, the bitumen flue gas point that can be collected gas gathering mask and asphalt storage by the first branch pipe and the second branch pipe It opens and collects and be delivered in scrubbing tower by main air hose, when handling a bitumen flue gas, close the second exhaust-gas treatment unit, make Obtaining a bitumen flue gas can only be discharged from spray column top, can be included a bitumen flue gas by 6 spray washings work Some a large amount of dust are settled, and can be incited somebody to action by 1 group of mechanical filter fume purifying unit and 4 groups of plasma purifier groups A bitumen flue gas after spray washing works is filtered, decomposes and taste removal, is discharged finally by chimney；When processing two When secondary bitumen flue gas, the first exhaust-gas treatment unit is closed, so that secondary bitumen flue gas can only pass through 3 from spray tower side wall discharge Secondary spray washing work can settle a small amount of dust contained in secondary bitumen flue gas, pass through mechanical filter fume purifying Secondary bitumen flue gas after spray washing works can be filtered by unit and plasma purifier group, decompose and Taste removal, and because secondary bitumen flue gas can generate more volatile harmful gases when heating again, by 5 groups etc. from Sub- purifier group can increase processing time and the processing intensity of secondary bitumen flue gas, so that the secondary drip after processed Green flue gas meets discharge standard, is discharged finally by chimney, reaches and a pitch can be completed by a cleaning treatment system The work of the purified treatment of flue gas and secondary bitumen flue gas, greatly reduces equipment purchase cost.

Further setting: electronic air quantity regulating butterfly valve is provided on first branch pipe and the second branch pipe.

So set, can control the ventilation quantity of the first branch pipe and the second branch pipe by electronic air quantity regulating butterfly valve, so that It is capable of the actual production adjustment air volume of bitumen flue gas to meet the collection work of bitumen flue gas.

Further setting: more inclined legs are communicated on the main air hose, each inclined legs are connected to main air hose One end of setting is provided with spiral nozzle, and the one end of each inclined legs far from main air hose is connected to setting with external source.

So set, shower water spiral nozzle effect under in generating high-speed flow in main air hose so that water is abundant with gas Stirring is mixed, particulate solid that can adequately in washing absorption flue gas, and can wash away main air hose and prevent from blocking can be with Effectively prevent the generation of fire.

Further setting: being provided with windowpane on the position on the spray column outer wall above each layer of packing layer, The climbing ladder outside windowpane is fixed on the spray column outer wall.

So set, observing the bitumen flue gas treatment situation of each layer packing layer convenient for staff by windowpane, pass through Climbing ladder is climbed up spray system tower convenient for staff and is observed.

Further setting: the spray column side is provided with water pump, and the spray column tower bottom is provided with return tank, the water The water inlet of pump is connected to setting with return tank, be provided on the water outlet of the water pump one be vertically arranged and with each spraying mechanism It is connected to the outlet pipe of setting.

So set, spray liquid is delivered to each spraying mechanism along outlet pipe after water pump is pressurized in tower bottom, so that Spray liquid can be sprayed above each layer packing layer and under, be finally back to tower bottom recycling.

Further setting: the drainpipe that setting is connected to outside spray column and with outlet pipe is stretched out in each described equal one end of spraying mechanism And more than one piece drainpipe is in the spray head of the connection setting of one end in spray column, each drainpipe stretches out one end outside spray column It is provided with the first solenoid valve.

So set, can open 6 the first solenoid valves simultaneously when handling a bitumen flue gas and make in 6 sprays Spray head in leaching mechanism is able to carry out spray work, so that a bitumen flue gas can be sprayed on each layer packing layer Washing；The spray head on 3 spraying mechanisms of bottom can be opened simultaneously when handling secondary bitumen flue gas, because of water pump pressure Power is certain, so that the spraying effect for the spray head respectively opened is more preferable, so that the secondary bitumen flue gas for spraying work by 3 layers is It can carry out sufficient spray washing.

Further setting: being additionally provided with automatic medicament feeding machine outside the spray column, the medicine outlet of the automatic medicament feeding machine with return Flow case connection setting.

So set, medical fluid can be automatically replenished to return tank by automatic medicament feeding machine, so that the medical fluid in spray liquid is protected Hold a certain concentration.

Further setting: the Y-piece is provided with second solenoid valve far from the both ends of high pressure blower.

So set, can control the direction of ventilation of Y-piece by second solenoid valve, enable high pressure blower individual Work is on the first exhaust-gas treatment unit or the second exhaust-gas treatment unit.

By using above-mentioned technical proposal, the utility model is compared compared with the prior art: passing through the first waste gas purification unit It is able to meet the purified treatment of a pitch exhaust gas and secondary pitch with the second exhaust gas unit, it is useless by spray column and first Matching relationship between gas purification unit and the second waste gas purification unit can meet a pitch exhaust gas and secondary pitch simultaneously Spray dust work, the discharge of the purification gas of a pitch exhaust gas and secondary pitch can be met simultaneously by chimney, greatly It is big to reduce equipment cost.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of Multifunctional asphalt flue gas purification system；

Fig. 2 is the A partial enlargement diagram of Fig. 1；

Fig. 3 is the structural schematic diagram of the inclined legs of Multifunctional asphalt flue gas purification system；

Fig. 4 is the diagrammatic cross-section of the inclined legs of Multifunctional asphalt flue gas purification system；

Fig. 5 is the structural schematic diagram of the Y-piece of Multifunctional asphalt flue gas purification system；

Fig. 6 is the structural schematic diagram of the spray column of Multifunctional asphalt flue gas purification system；

Fig. 7 is the diagrammatic cross-section of the spray column of Multifunctional asphalt flue gas purification system；

Fig. 8 is the processing flow schematic diagram of a bitumen flue gas；

Fig. 9 is the processing flow schematic diagram of secondary bitumen flue gas.

In figure: 1, spray column；11, main air hose；12, inclined legs；121, common water pipe；122, spiral nozzle；13, it climbs Ladder；14, windowpane；15, return tank；16, packing layer；17, activated carbon adsorption layer；2, asphalt storage；21, the second branch pipe；211, Electronic air quantity regulating butterfly valve；3, gas gathering mask；31, the first branch pipe；4, the first exhaust-gas treatment unit；41, mechanical filter fume purifying Unit；42, plasma purifier group；5, the second exhaust-gas treatment unit；6, high pressure blower；61, Y-piece；611, the second electricity Magnet valve；7, chimney；8, automatic medicament feeding machine；9, water pump；91, outlet pipe；92, the first solenoid valve；10, spraying mechanism；101, it drains Pipe；102, spray head.

Specific embodiment

Multifunctional asphalt flue gas purification system is described further referring to figs. 1 to Fig. 9.

A kind of Multifunctional asphalt flue gas purification system, as shown in Figure 1, including spray column 1, gas gathering mask 3, asphalt storage 2, the One exhaust-gas treatment unit 4, the second exhaust-gas treatment unit 5, high pressure blower 6 and chimney 7；Wherein, 1 lower end of spray column is provided with and communicated with For the main air hose 11 of air inlet, gas gathering mask 3 and asphalt storage 2 pass through the first branch pipe 31 and the second branch pipe 21 and main air hose 11 respectively One end far from spray column 1 is connected to setting, and the first exhaust-gas treatment unit 4 is connected to setting, the second exhaust-gas treatment with 1 top of spray column Unit 5 and 1 sidewall treatment unit of spray column, the first exhaust-gas treatment unit 4 and the second exhaust-gas treatment unit 5 are far from spray column 1 One end passes through a Y-piece 61 and is connected to setting, the air outlet of high pressure blower 6 and 7 bottom end of chimney with the air inlet of high pressure blower 6 Connection setting.

It advanced optimizes, the first exhaust-gas treatment unit 4 includes that 1 group of mechanical filter oil smoke that setting is connected to spray column 1 is net Change unit 41 and 4 groups of plasma purifier groups 42 in series with each other；Second exhaust-gas treatment unit 5 include 1 group with The mechanical filter fume purifying unit 41 and 5 groups of plasma purifiers in series with each other of the connection setting of spray column 1 Group 42.

After existing asphalt production, pitch hardening by cooling in order to prevent, pitch can be generally stored in asphalt storage 2 into Row heat preservation, need using when directly heated, then taken out using local extraction device；When pitch is just produced, Temperature is higher, general to require at 185 DEG C, and when the taking-up of the pitch through storing, 160 DEG C of ability should be heated in asphalt storage 2 Enough to take out, pitch can generate a bitumen flue gas in production, adulterate a large amount of dust and part inside a bitumen flue gas The pernicious gas generated when asphalt production, pitch is again heated to 160 DEG C in asphalt storage 2 to have the part inside pitch Evil gas continues to evaporate, and because of mechanism reaction inside pitch, leads to volatilize inside pitch some being insoluble in water Pernicious gas, the two mixing will form secondary bitumen flue gas；It can be respectively by collection by the first branch pipe 31 and the second branch pipe 21 The exhaust gas that gas hood 3 and asphalt storage 2 are collected is separately delivered to spray column 1, when what is handled in spray column 1 is a bitumen flue gas When, the second exhaust-gas treatment unit 5 is closed, a pitch exhaust gas is discharged from 1 top of spray column, so that primary drip Green flue gas is worked by the spray washing of spray column 1, and the dust that can effectively contain inside is discharged, by the one of dust discharge Secondary bitumen flue gas can successively pass through 1 group of mechanical filter fume purifying unit 41 and 4 groups of plasma purifier groups 42, because The a large amount of dust contained inside bitumen flue gas has been removed, therefore remaining exhaust gas need to only pass through filtering, decomposition and taste removal It can be completed purification work, and the exhaust gas contained in a bitumen flue gas is mainly by generating pernicious gas when raw material Hybrid Heating, Its particle mainly exists in the form of the tar mist grain of 0.1~1.0um, can by 4 groups of plasma purifier groups 42 To complete basic disintegration, gas after processing can be directly discharged by high pressure blower 6 and chimney 7；When in spray column 1 When what is handled is secondary bitumen flue gas, the first exhaust-gas treatment unit 4 is closed, secondary pitch exhaust gas is sprayed by part Work is washed, and is discharged from 1 side wall of spray column, because dust accounting amount is less inside secondary bitumen flue gas, only needs to carry out Dust remaining in secondary bitumen flue gas can be discharged for simple spray washing work, the secondary bitumen flue gas that dust is discharged 1 group of mechanical filter fume purifying unit 41 and 5 groups of plasma purifier groups 42 can successively be passed through, because of secondary glance coal It is generated based on pernicious gas when the exhaust gas contained in gas is mainly heated by pitch again, passes through 5 groups of plasma purifier groups 42 may insure the disintegration of pernicious gas, and gas after processing can be directly discharged by high pressure blower 6 and chimney 7.

Referring to figs. 1 and 2, it is provided with electronic air quantity regulating butterfly valve 211 on the first branch pipe 31 and the second branch pipe 21, The gas sampling efficiency that asphalt production place and asphalt storage 2 can be controlled by electronic air quantity regulating butterfly valve 211, works as glance coal Gas can reduce the working efficiency of electronic air quantity regulating butterfly valve 211 when less, avoid raising excessive dust on work-yard, work as drip Green flue gas can increase the working efficiency of electronic air quantity regulating butterfly valve 211 when more, it is ensured that the collecting effect of bitumen flue gas.

In conjunction with shown in Fig. 3 and Fig. 4, more inclined legs 12, each inclined legs 12 and main wind are communicated on main air hose 11 One end of the connection setting of pipe 11 is provided with spiral nozzle 122, and the one end of each inclined legs 12 far from main air hose 11 passes through common Water pipe 121 is connected to setting with external source, and external source can endlessly convey in clear water to inclined legs 12, and pass through spiral shell Clear water is sprayed in main air hose 11 by whirl spraying mouth 122 in the form of water mist, so that water and gas sufficiently mix stirring, it can be sufficient Particulate solid in washing absorption flue gas, and main air hose 11 can be washed away prevent from blocking, it can also effectively prevent fire Occur, meanwhile, aqueous vapor can mix with bitumen flue gas to be used into spray column 1 as supplement water.

Referring to figure 1 and figure 5, Y-piece 61 is connected to the two of setting with the first purification unit and the second purification unit respectively End is provided with second solenoid valve 611, can control 61 one-way conduction of Y-piece by second solenoid valve 611, so that high pressure blower 6 can be independently operated on the first exhaust-gas treatment unit and the second exhaust-gas treatment unit 5.

It is provided with six layers of packing layer 16, each 16 top of layer packing layer from the bottom to top in conjunction with shown in Fig. 6 and Fig. 7, in spray column 1 It is provided with activated carbon adsorption layer 17, the spraying mechanism for spraying medical fluid is provided with above each layer activated carbon adsorption layer 17 10, the interior lower end of spray column 1 is additionally provided with the return tank 15 for collecting spray liquid；In each layer on the outer wall of spray column 1 It is provided with windowpane 14 on the position of 16 top of packing layer, is further fixed on climbing outside windowpane 14 on 1 outer wall of spray column Ascending stair 13；It is provided with water pump 9 and automatic medicament feeding machine 8 outside spray column 1, the medicine outlet of automatic medicament feeding machine 8 is connected to return tank 15 to be set It sets, the water inlet of water pump 9 is connected to setting with return tank 15.

Wherein, an outlet pipe 91 along the setting of 1 short transverse of spray column is provided on the water outlet of water pump 9, it is each to spray Mechanism 10 includes that the drainpipe 101 that setting is connected to outside spray column 1 and with outlet pipe 91 and more than one piece and drainpipe are stretched out in one end The spray head 102 of 101 one end connection setting in spray column 1, one end that each drainpipe 101 stretches out outside spray column 1 is all provided with It is equipped with the first solenoid valve 92.

Spray liquid is delivered to each spraying mechanism 10 along outlet pipe 91 after the pressurization of water pump 9 in tower bottom, so that spray Liquid can be sprayed above each layer packing layer 16 and under, be finally back in return tank 15 and be recycled, pass through automatic medicament feeding machine 8 Medical fluid can be automatically replenished to return tank 15, so that the medical fluid in spray liquid keeps a certain concentration, pass through 92 energy of the first solenoid valve It is enough to determine how many spraying mechanisms 10 of starting according to the actual conditions of bitumen flue gas.

Working principle: as shown in figure 8, when purifying a bitumen flue gas, the second exhaust gas unit of connection and Y type are first shut off Then the second solenoid valve 611 of pipe 61 is gathered up generate in asphalt production process bitumen flue gas using gas gathering mask 3 Come, be then delivered in spray column 1 by main air hose 11, when a bitumen flue gas passes through main air hose 11, can use spiral Nozzle 122 sprays aqueous vapor, and a bitumen flue gas and gas-vapor mix enter in spray column 1, so that a bitumen flue gas is by 6 layers of spray Work is washed in elution, is finally entered the second exhaust-gas treatment unit 5 and is discharged from chimney 7.

As shown in figure 9, when purification secondary bitumen flue gas, it is first shut off the of the first exhaust gas unit of connection and Y-piece 61 Then two solenoid valves 611 collect the secondary bitumen flue gas generated in asphalt storage 2, then conveyed by main air hose 11 To spray column 1, when secondary bitumen flue gas passes through main air hose 11, it can use spiral nozzle 122 and spray aqueous vapor, secondary pitch Flue gas and gas-vapor mix enter in spray column 1, so that secondary bitumen flue gas finally enters second by 3 layers of spray washing work Exhaust-gas treatment unit 5 is simultaneously discharged from chimney 7.

It should be noted that when, the main component of gas is different according to a bitumen flue gas and in secondary bitumen flue gas, composition the The mechanical filter fume purifying unit 41 and plasma purifier group of one waste gas purification unit and the second waste gas purification unit There is certain difference in 42 specification, this is also using two groups of waste gas purification unit reasons.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (8)

1. a kind of Multifunctional asphalt flue gas purification system, it is characterised in that: including spray column (1), gas gathering mask (3), asphalt storage (2), the first exhaust-gas treatment unit (4), the second exhaust-gas treatment unit (5), high pressure blower (6) and chimney (7)；The spray column (1) internal to be provided with six layers of packing layer (16) from the bottom to top, activated carbon adsorption layer is provided with above each layer packing layer (16) (17), the spraying mechanism (10) for spraying medical fluid is provided with above each layer activated carbon adsorption layer (17)；The spray column (1) Lower end is provided with and communicated with main air hose (11), and the gas gathering mask (3) and asphalt storage (2) pass through the first branch pipe (31) and second respectively Branch pipe (21) is connected to setting far from the one end of spray column (1) with main air hose (11)；The first exhaust-gas treatment unit (4) and spray The connection setting of tower (1) top, the second exhaust-gas treatment unit (5) is connected to setting with spray column (1) side wall, wherein described the The connector of two exhaust-gas treatment units (5) and spray column (1) be located at third layer packing layer (16) and the 4th layer of packing layer (16) it Between；The first exhaust-gas treatment unit (4) includes 1 group of mechanical filter fume purifying unit that setting is connected to spray column (1) (41) and 4 groups of plasma purifier groups (42) in series with each other, the second exhaust-gas treatment unit (5) include 1 group is connected to the mechanical filter fume purifying unit (41) and 5 groups of plasmas in series with each other being arranged with spray column (1) Purifier group (42) is provided with and communicated with Y-piece (61) on the air inlet of the high pressure blower (6), and the Y-piece (61) is remote Both ends from high pressure blower (6) are respectively with the first exhaust-gas treatment unit (4) and the second exhaust-gas treatment unit (5) farthest away from spray column (1) a plasma purifier group (42) is connected to setting, the air outlet of the high pressure blower (6) and chimney (7) lower end Connection setting.

2. a kind of Multifunctional asphalt flue gas purification system according to claim 1, it is characterised in that: first branch pipe (31) and on the second branch pipe (21) it is provided with electronic air quantity regulating butterfly valve (211).

3. a kind of Multifunctional asphalt flue gas purification system according to claim 1, it is characterised in that: the main air hose (11) On be communicated with more inclined legs (12), one end that each inclined legs (12) are connected to setting with main air hose (11) is provided with spiral shell Whirl spraying mouth (122), each inclined legs (12) are connected to setting with external source far from the one end of main air hose (11).

4. a kind of Multifunctional asphalt flue gas purification system according to claim 1, it is characterised in that: the spray column (1) It is provided with windowpane (14) on position on outer wall above each layer of packing layer (16), it is solid on spray column (1) outer wall Surely there is the climbing ladder (13) outside positioned at windowpane (14).

5. a kind of Multifunctional asphalt flue gas purification system according to claim 1, it is characterised in that: the spray column (1) Side is provided with water pump (9), and spray column (1) tower bottom is provided with return tank (15), the water inlet of the water pump (9) and reflux Case (15) connection is arranged, and is provided with one on the water outlet of the water pump (9) and is vertically arranged and is connected to each spraying mechanism (10) The outlet pipe (91) of setting.

6. a kind of Multifunctional asphalt flue gas purification system according to claim 5, it is characterised in that: each spraying mechanism (10) drainpipe (101) and more than one piece drainpipe that spray column (1) is connected to setting outside and with outlet pipe (91) are stretched out in one end (101) spray head (102) of one end connection setting in spray column (1), each drainpipe (101) stretch out spray column (1) Outer one end is provided with the first solenoid valve (92).

7. a kind of Multifunctional asphalt flue gas purification system according to claim 5, it is characterised in that: the spray column (1) It is additionally provided with automatic medicament feeding machine (8) outside, the medicine outlet of the automatic medicament feeding machine (8) is connected to setting with return tank (15).

8. a kind of Multifunctional asphalt flue gas purification system according to claim 1, it is characterised in that: the Y-piece (61) Both ends far from high pressure blower (6) are provided with second solenoid valve (611).