CN104307863B - Serious pollution soil restoring device - Google Patents

Serious pollution soil restoring device Download PDF

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CN104307863B
CN104307863B CN201410563874.8A CN201410563874A CN104307863B CN 104307863 B CN104307863 B CN 104307863B CN 201410563874 A CN201410563874 A CN 201410563874A CN 104307863 B CN104307863 B CN 104307863B
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soil
volatilization
storage tank
aqua storage
gas
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CN104307863A (en
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万玉山
陈艳秋
黄利
李定龙
杨彦
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Changzhou University
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Changzhou University
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Abstract

A kind of serious pollution soil restoring device, comprises soil interpolation and exhaust system, soil heating and stirring system, volatilization waste gas cleaning system; Soil adds and exhaust system comprises that soil discharge tipping bucket, soil cylinder, soil add mouth; Soil heating and stirring system comprise air inlet pipe, air heating system, stirring motor, stirring power transmission shaft and stirring vane; Volatilization waste gas cleaning system is upwards followed successively by volatilization off-gas oxidizing uptake zone, volatilization waste gas alkalization uptake zone, demister, the gas acidized uptake zone of volatilization, activated carbon adsorption layer and exhaust fan from bottom; Or volatilization waste gas cleaning system is upwards followed successively by volatilization off-gas oxidizing uptake zone, the gas acidized uptake zone that volatilizees, demister, the alkalization of volatilization waste gas uptake zone, activated carbon adsorption layer and exhaust fan from bottom.

Description

Serious pollution soil restoring device
Technical field
The present invention relates to contaminated soil repairing and treating technical field, especially a kind of serious pollution soil remediation dressPut.
Background technology
Modern petroleum exploration, exploitation, processing enterprise, and the production process of the enterprise such as chemical industry, pharmacy is frequentCan cause severe contamination to soil, the volatilization such as diesel oil, benzene, toluene, carbon tetrachloride in these heavily contaminated placesProperty content of material is very high, and these pollutants belong to hydrophobic organic compound mostly, and the solubility in waterLittle, can be trapped in for a long time in soil environment, both destroy soil texture and function, to the physics and chemistry of soilCharacter produces and has a strong impact on, and becomes again the long-time pollution source of surface water and groundwater. At present to severe volatilityThe improvement of contaminated soil adopts the processing such as burn in strange land, landfill, hydrodynamic cleaning that soil is scooped away more, butExist processing cost higher, easily produce secondary pollution problems.
Chinese patent " volatility and semi-volatile organic matter contaminated soil are administered technique and device outside the venue " (patentNumber: 200410056888.7) a kind of volatility is disclosed and semi-volatile organic matter contaminated soil is administered outside the venueTechnique and device, this device has advantages of simple structure and simple; But there is following defect in this Patent equipment: volatilizationProperty and semi-volatile organic matter, only by the absorption of active carbon, are difficult to meet the discharge standard of atmosphere.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the technical problem of above-mentioned patent, a kind of severe dirt is providedDye soil restoring device, can effectively process various volatility serious pollution soil, simple in structure, operation sideJust, can carry out on the spot at pollution scene soil remediation improvement.
The technical solution adopted for the present invention to solve the technical problems is: a kind of serious pollution soil restoring device,Comprise soil interpolation and exhaust system, soil heating and stirring system, volatilization waste gas cleaning system; Soil addsAdd the bottom that is positioned at whole serious pollution soil restoring device with exhaust system, soil heating and stirring system,Volatilization waste gas cleaning system is positioned at the middle and upper part of whole serious pollution soil restoring device.
Described soil adds and exhaust system comprises that soil discharge tipping bucket, soil cylinder, soil add mouth.
Described soil discharge tipping bucket is positioned at the lowest part of soil interpolation and exhaust system, and soil discharges the upper of tipping bucketPortion is conical structure, a side of the oblique whole serious pollution soil restoring device of lower outlet.
Described soil cylinder bottom is connected with soil discharge the suitable for reading of tipping bucket, in the middle of soil cylinder and soil discharge tipping bucketWith separating by extraction baffle plate. Described soil interpolation mouth is positioned under soil cylinder top, soil discharge tipping bucket and exports phaseAn anti-side, soil adds mouth and is provided with the sliding door that circular arc is opened up and down.
Described soil heating and stirring system comprise that air inlet pipe, air heating system, stirring motor, stirring passMoving axis and stirring vane. Described air heating system is positioned at the top that soil can extraction baffle plate, adopts electrical heatingDevice, is fixed on by cross frame on the inwall of soil cylinder. Described stirring power transmission shaft and stirring vane are hollowStructure, stirring vane is provided with hot air outlet.
Described volatilization waste gas cleaning system is upwards followed successively by volatilization off-gas oxidizing uptake zone from bottom, volatilization is uselessGas alkalization uptake zone, demister, the gas acidized uptake zone of volatilization, activated carbon adsorption layer and exhaust fan or described inVolatilization waste gas cleaning system be upwards followed successively by volatilization off-gas oxidizing uptake zone, the gas acidized suction of volatilizing from bottomReceive district, demister, volatilization waste gas alkalization uptake zone, activated carbon adsorption layer.
Described volatilization off-gas oxidizing uptake zone is positioned at the top of soil cylinder; Described volatilization off-gas oxidizing absorbsIn district, be provided with volatilization off-gas oxidizing absorbent assembly, described volatilization off-gas oxidizing absorbent assembly comprises and is positioned at volatilizationThe ozone oxidation water spray system on off-gas oxidizing assembly top, be positioned at volatilization off-gas oxidizing absorbent assembly bottomOzone oxidation water aqua storage tank and the ozonation aerated dish that is placed in ozone oxidation water aqua storage tank, described is ozonation aeratedDish is communicated with ozone generator by aeration tube, also has the ozone oxidation water pump in ozone oxidation water aqua storage tankEnter the ozone oxidation water-circulating pump of ozone oxidation water spray system.
Described volatilization waste gas alkalization uptake zone is provided with volatilization waste gas alkalization absorbent assembly, described volatilization waste gasAlkalization absorbent assembly comprise be positioned at volatilization waste gas alkalization assembly top alkaline solution spray equipment, be positioned at volatilizationThe alkaline solution aqua storage tank of waste gas alkalization absorbent assembly bottom and by the alkaline solution pump in alkaline solution aqua storage tankEnter the alkaline solution circulating pump of alkaline solution spray equipment.
The gas acidized uptake zone of described volatilization is provided with the gas acidized absorbent assembly of volatilization, described volatilization waste gasAcidifying absorbent assembly comprise be positioned at volatilization off-gas oxidizing assembly top acid solution spray equipment, be positioned at volatilizationThe acid solution aqua storage tank of gas acidized absorbent assembly bottom and by the acid solution pump in acid solution aqua storage tankEnter the acid solution circulating pump of acid solution spray equipment.
Between described volatilization waste gas alkalization absorbent assembly and the gas acidized absorbent assembly of volatilization, be provided with demister,Demister is that the large drop in gas is collected, and makes it to return, and reduces the moisture content in gas, its workBe that gas enters demister as principle, through a series of bends, discharge from top, and water droplet be due to its qualityWith the effect of kinetic energy, when through bend part, straight line falls, and collides the surface of demister, and to heavyUnder power effect, rebound.
The gas acidized absorbent assembly of described volatilization top is provided with activated carbon adsorption layer, described charcoal absorptionIn layer, active carbon is set, active carbon requires to have hole prosperity, specific area is large, adsorption rate is fast, anti-frictionThe advantages such as wiping, resistance to flushing, as through the operation of long period, find that active carbon becomes sticky, when gas prompt drop is low justNeed to change in time active carbon.
Concrete, in the middle of described serious pollution soil restoring device, be that cylindrical, upper and lower two ends are for conicalTank body, offers observation port and maintenance replacement port on described tank body, the large I of tank body volume is according to pending soilThe number of earth amount and determining, adopts vertical vertical placement.
Discharge the circle of described serious pollution soil restoring device topmost for ease of the clean gas of handlingTaper tank body place is provided with exhaust fan.
Further and cylindrical tank container matches, described ozone oxidation water aqua storage tank, alkaline solutionAqua storage tank and acid solution aqua storage tank are circle basin shape, ozone oxidation water aqua storage tank, alkaline solution aqua storage tank and acidProperty solution aqua storage tank top be equipped with shower water aggregation apparatus, the lower end diameter of described shower water aggregation apparatusBe less than the diameter of ozone oxidation water aqua storage tank, alkaline solution aqua storage tank and acid solution aqua storage tank. Shower water is poly-Acquisition means can make shower water assemble and be back to ozone oxidation water aqua storage tank, alkaline solution aqua storage tank and acid solutionAqua storage tank.
Further, for supplementing in time absorbent solution, described volatilization waste gas alkalization absorbent assembly is also furnished with and addsAlkali device, described adder-subtractor comprises alkali liquid tank and agitating device, alkali liquid tank is communicated with by pipeline and valveAlkaline solution circulating pump; The gas acidized assembly that volatilizees is also furnished with acid adding device, and described acid adding device comprises acidFlow container and agitating device, acid solution tank is communicated with acid solution circulating pump by pipeline and valve. Joining of absorbent solutionSpecific concentration decides according to the volatilization exhausted air quantity of processing and volatilization exhaust gas concentration.
Further, described ozone oxidation water spray system, alkaline solution spray equipment and acid solution sprayShower device is helical form spray equipment; The water ejecting presents vaporific, and mixing together between water smoke, does not stayDead angle, is conducive to expand the contact area of volatilization waste gas and solution, raising absorptivity and assimilation effect.
The alkaline solution that described volatilization waste gas alkalization absorbent assembly adopts is sodium hydroxide solution or limewash,The acid solution that the gas acidized absorbent assembly of described volatilization adopts is sulfuric acid or hydrochloric acid.
Further preferred equipment, described ozone generator is intermediate-frequency ozone generator, power consumption is few, takes up an areaArea is little, can realize automatically and controlling.
Further preferred equipment, demister is deflection plate demister or overflowing board demister.
Further preferred equipment, the bottommost of package unit is provided with three supporting legs.
Further, be to save space and attractive in appearance, described ozone generator, ozone oxidation water-circulating pump,Alkaline solution circulating pump and acid solution circulating pump are laid between three supporting legs of bottom, and described is integratedDevice tank body be provided with groove, in groove, be provided with tube connector, tube connector aqua storage tank, spray equipment, followRing pump couples together.
The invention has the beneficial effects as follows, first open soil and add mouth, contaminated soil is packed in soil cylinder,Air heating system is to heating from the fresh air outside system, under the pump drainage effect of exhaust fan, and heatAir enters soil, soil by the hot air outlet on stirring power transmission shaft and stirring vane and the stirring vane of hollowEarth is taken volatile materials out of under the effect of heating and stirring, and volatilization waste gas rises in oxidation uptake zone, smellyOxygen oxidize water, from uniform ozone oxidation water spray system ejection, forms countless fine mist, with volatilization waste gasAfter fully mixing contact, chemical reaction occurs, the harmful substance in volatilization waste gas is oxidized to and is easy to absorb and inhaleAttached small-molecule substance, a part is absorbed in ozone oxidation water; Volatilization waste gas continues to rise molten with alkalescenceThe alkaline solution contact of liquid spray equipment ejection, it is anti-to there is chemistry in volatilization waste gas middle acid substance and alkaline matterShould, reaction product flows in the alkaline solution aqua storage tank of bottom with alkaline solution, then enters demister, wavesThe drop of sending out in waste gas is here blocked; Volatilization waste gas continues to rise and the spray of acid solution spray equipmentThe acid solution contact going out, there is chemical reaction with acid in the alkaline matter in volatilization waste gas, reaction product withAcid solution flows in the acid solution aqua storage tank of bottom, then enters activated carbon adsorption layer, institute in volatilization waste gasThe material and the drop that are mingled with are here blocked and absorb, and the waste gas that so far volatilizees is processed into clean gas,Realize qualified discharge; Extraction baffle plate after reparation completes in the middle of extraction soil cylinder and soil discharge tipping bucket, soilDischarged backfill original position by soil discharge tipping bucket; Serious pollution soil restoring device of the present invention is simple in structure,Be easy to manufacture the effectively various serious pollution soil of repair process.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is embodiments of the invention 1 structural representations;
In figure: 1. soil discharge tipping bucket, 2. soil cylinder, 3. soil adds mouthful, 4. can extraction baffle plate,5. air inlet pipe, 6. air heating system, 7. stirring motor, 8. stirs power transmission shaft, and 9. stirring vane is 10. smellyOxygen oxidize water spray equipment, 11. ozone oxidation water aqua storage tanks, 12. ozonation aerated dishes, 13. ozone generators,14. ozone oxidation water-circulating pumps, 15. alkaline solution spray equipments, 16. alkaline solution aqua storage tanks, 17. alkalescenceSolution circulation pump, 18. acid solution spray equipments, 19. acid solution aqua storage tanks, 20. acid solution circulating pumps,21. demisters, 22. activated carbon adsorption layers, 23. exhaust fans, 24. shower water aggregation apparatus, 25. supporting legs.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation. These accompanying drawings are the signal of simplificationFigure, only illustrates basic structure of the present invention in a schematic way, and therefore it only shows the structure relevant with the present inventionBecome.
Embodiment 1
Of the present invention a kind of serious pollution soil restoring device as shown in Figure 1, comprises that soil adds and dischargeSystem, soil heating and stirring system, volatilization waste gas cleaning system; Soil interpolation and exhaust system, soilHeating and stirring system are positioned at the bottom of whole serious pollution soil restoring device, volatilization waste gas cleaning system positionIn the middle and upper part of whole serious pollution soil restoring device.
Described soil adds and exhaust system comprises that soil discharge tipping bucket 1, soil cylinder 2, soil add mouth 3.
Described soil discharge tipping bucket 1 is positioned at the lowest part of soil interpolation and exhaust system, soil discharge tipping bucket 1Top be conical structure, a side of the oblique whole serious pollution soil restoring device of lower outlet.
Described soil cylinder 2 bottoms are connected with soil discharge the suitable for reading of tipping bucket 1, and soil cylinder 2 is oblique with soil dischargeBucket 1 is middle with separating by extraction baffle plate 4; Described soil interpolation mouth 3 is positioned at the top of soil cylinder 2, at soil1 time contrary side of outlet of earth discharge tipping bucket, soil adds mouth 3 and is provided with the sliding door that circular arc is opened up and down.
Described soil heating and stirring system comprise air inlet pipe 5, air heating system 6, stirring motor 7, stirMix power transmission shaft 8 and stirring vane 9; Described air heating system 6 is positioned at the top that soil can extraction baffle plate 4,Adopt electric heater unit, be fixed on by cross frame on the inwall of soil cylinder 2; Described stirring motor 7 is positioned atThe top of soil cylinder 2, is fixed on by cross frame on the inwall of soil cylinder 2, described stirring power transmission shaft 8 andStirring vane 9 is hollow structure, and stirring vane 9 is provided with hot air outlet.
Described volatilization waste gas cleaning system is upwards followed successively by volatilization off-gas oxidizing uptake zone from bottom, volatilization is uselessGas alkalization uptake zone, demister, the gas acidized uptake zone of volatilization, activated carbon adsorption layer.
Described volatilization off-gas oxidizing uptake zone is positioned at the top of soil cylinder 2; Described volatilization off-gas oxidizing is inhaledReceive in district and be provided with volatilization off-gas oxidizing absorbent assembly, described volatilization off-gas oxidizing absorbent assembly comprises being positioned to be wavedSend out off-gas oxidizing assembly top ozone oxidation water spray system 10, be positioned under volatilization off-gas oxidizing absorbent assemblyThe ozone oxidation water aqua storage tank 11 of portion and the ozonation aerated dish 12 that is placed in ozone oxidation water aqua storage tank, describedOzonation aerated dish is communicated with ozone generator 13 by aeration tube, also has smelly by ozone oxidation water aqua storage tankOxygen oxidize water pumps into the ozone oxidation water-circulating pump 14 of ozone oxidation water spray system.
Described volatilization waste gas alkalization uptake zone is provided with volatilization waste gas alkalization absorbent assembly, described volatilization waste gasAlkalization absorbent assembly comprise be positioned at volatilization waste gas alkalization assembly top alkaline solution spray equipment 15, be positioned at and waveSend out the alkaline solution aqua storage tank 16 of waste gas alkalization absorbent assembly bottom and by molten the alkalescence in alkaline solution aqua storage tankLiquid pump enters the alkaline solution circulating pump 17 of alkaline solution spray equipment.
The gas acidized uptake zone of described volatilization is provided with the gas acidized absorbent assembly of volatilization, described volatilization waste gasAcidifying absorbent assembly comprise be positioned at volatilization off-gas oxidizing assembly top acid solution spray equipment 18, be positioned at and waveSend out the acid solution aqua storage tank 19 of absorbent assembly bottom gas acidized and by molten the acidity in acid solution aqua storage tankLiquid pump enters the acid solution circulating pump 20 of acid solution spray equipment.
Between described volatilization waste gas alkalization absorbent assembly and the gas acidized absorbent assembly of volatilization, be provided with demister21, demister 21 is that the large drop in gas is collected, and makes it to return, and reduces the moisture content in gas,Its operation principle is that gas enters demister, through a series of bends, discharge, and water droplet is due to it from topThe effect of quality and kinetic energy, when through bend part, straight line falls, and collides the surface of demister, andUnder Action of Gravity Field, rebound.
The gas acidized absorbent assembly of described volatilization top is provided with activated carbon adsorption layer 22, and described active carbon is inhaledIn attached layer 22, active carbon is set, active carbon requires to have hole prosperity, specific area is large, adsorption rate is fast,The advantage such as friction resistant, resistance to flushing, as the operation through the long period, finds that active carbon becomes sticky, and gas prompt drop is lowTime just need to change in time active carbon.
Concrete, in the middle of described serious pollution soil restoring device, be that cylindrical, upper and lower two ends are for conicalTank body, offers observation port and maintenance replacement port on described tank body, the large I of tank body volume is according to pending soilThe number of earth amount and determining, adopts vertical vertical placement.
Discharge the circle of described serious pollution soil restoring device topmost for ease of the clean gas of handlingTaper tank body place is provided with exhaust fan 23.
Further and cylindrical tank container matches, and described ozone oxidation water aqua storage tank 11, alkalescence are moltenLiquid aqua storage tank 16 and acid solution aqua storage tank 19 are circle basin shape, ozone oxidation water aqua storage tank 11, alkaline solutionAqua storage tank 16 and acid solution aqua storage tank 19 tops are equipped with shower water aggregation apparatus 24, described shower waterThe lower end diameter of aggregation apparatus 24 is less than ozone oxidation water aqua storage tank 11, alkaline solution aqua storage tank 16 and acidityThe diameter of solution aqua storage tank 19; Shower water aggregation apparatus 24 can make shower water assemble and be back to ozone oxidation waterIn aqua storage tank 11, alkaline solution aqua storage tank 16 and acid solution aqua storage tank 19.
Further, for supplementing in time absorbent solution, described volatilization waste gas alkalization absorbent assembly is also furnished with and addsAlkali device, described adder-subtractor comprises alkali liquid tank and agitating device, alkali liquid tank is communicated with by pipeline and valveAlkaline solution circulating pump 17; The gas acidized assembly that volatilizees is also furnished with acid adding device, and described acid adding device comprisesAcid solution tank and agitating device, acid solution tank is communicated with acid solution circulating pump 20 by pipeline and valve; Absorbent solutionMatched proportion density according to process volatilization exhausted air quantity and volatilization exhaust gas concentration decide.
Further, described ozone oxidation water spray system 10, alkaline solution spray equipment 15 and acid moltenLiquid spray equipment 18 is helical form spray equipment; The water ejecting presents vaporific, and mixing together between water smoke,Do not stay dead angle, be conducive to expand the contact area of volatilization waste gas and solution, improve absorptivity and assimilation effect.
Particularly, the alkaline solution that described volatilization waste gas alkalization absorbent assembly adopts be sodium hydroxide solution orLimewash, the acid solution that the gas acidized absorbent assembly of described volatilization adopts is sulfuric acid or hydrochloric acid.
Further preferred equipment, described ozone generator 13 adopts intermediate-frequency ozone generator, and power consumption is few,Floor space is little, can realize automatically and controlling.
Further preferred equipment, demister 21 is deflection plate demister or overflowing board demister.
Further preferred equipment, the bottommost of package unit is provided with three supporting legs 25.
Further, for saving space and attractive in appearance, described ozone generator 13, ozone oxidation water-circulating pump14, alkaline solution circulating pump 17 and acid solution circulating pump 20 are laid between three supporting legs 25 of bottom,The tank body of described integrated apparatus is provided with groove, is provided with tube connector in groove, tube connector aqua storage tank,Spray equipment, circulating pump couple together.
First open soil and add mouthfuls 3, contaminated soil is packed in soil cylinder 2, air heating system to fromFresh air outside system heats, and hot-air is by the stirring power transmission shaft 8 of hollow and stirring vane 9 and stirThe hot air outlet of mixing on blade 9 enters soil, under the pump drainage effect of exhaust fan 23, takes volatile materials out of,Volatilization waste gas rises in oxidation uptake zone, and ozone oxidation water sprays from uniform ozone oxidation water spray system 10Go out, form countless fine mist, fully mix and contact the rear chemical reaction that occurs, volatilization waste gas with volatilization waste gasIn harmful substance be oxidized to be easy to absorb and absorption small-molecule substance, a part is absorbed in ozone oxygenChange in water; The alkaline solution that volatilization waste gas continuation rising sprays with alkaline solution spray equipment 15 contacts, volatilizationWaste gas middle acid substance and alkaline matter generation chemical reaction, reaction product flows into bottom alkali with alkaline solutionProperty solution aqua storage tank 16 in, then enter demister 21, the drop in volatilization waste gas is here blocked;The acid solution that volatilization waste gas continuation rising sprays with acid solution spray equipment 18 contacts, in volatilization waste gasThere is chemical reaction with acid in alkaline matter, reaction product flows into bottom acid solution aqua storage tank with acid solutionIn 19, then enter activated carbon adsorption layer 22, the pollutant that volatilization is mingled with in waste gas and drop here byInterception absorbs, and the waste gas that so far volatilizees is processed into clean gas, realizes qualified discharge; Reparation completesIn the middle of rear extraction soil cylinder 2 and soil discharge tipping bucket 1 can extraction baffle plate 4, soil is by soil discharge tipping bucket 1Discharge backfill original position.
Embodiment 2
The difference of the 2nd embodiment of the present invention and the 1st embodiment is: the volatile materials in soilMeta-alkalescence, the waste gas that do not volatilize in serious pollution soil restoring device alkalization uptake zone, described serious pollution soilEarth prosthetic device comprises that soil interpolation and exhaust system, soil heating and stirring system, volatilization off-gas oxidizing inhaleReceive district, the gas acidized uptake zone that volatilizees, demister 21, activated carbon adsorption layer 22 and exhaust fan 23.
Embodiment 3
The difference of the 3rd embodiment of the present invention and the 1st embodiment is: the volatile materials in soilSlant acidity, the gas acidized uptake zone that do not volatilize in serious pollution soil restoring device, described serious pollution soilEarth prosthetic device comprises that soil interpolation and exhaust system, soil heating and stirring system, volatilization off-gas oxidizing inhaleReceive district, volatilization waste gas alkalization uptake zone, demister 21, activated carbon adsorption layer 22 and exhaust fan 23.
Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, related workPersonnel can, not departing from the scope of this invention technological thought, carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must be according to claim scopeDetermine its technical scope.

Claims (2)

1. a serious pollution soil restoring device, is characterized in that: described device comprises that soil adds and rowPlace system, soil heating and stirring system, volatilization waste gas cleaning system; Soil interpolation and exhaust system, soilEarth heating and stirring system are positioned at the bottom of whole serious pollution soil restoring device, volatilization waste gas cleaning systemBe positioned at the middle and upper part of whole serious pollution soil restoring device;
Described soil adds and exhaust system comprises that soil discharge tipping bucket (1), soil cylinder (2), soil addMouth (3);
Described soil discharge tipping bucket (1) is positioned at the lowest part of soil interpolation and exhaust system, soil discharge tipping bucket(1) top is conical structure, a side of the oblique whole serious pollution soil restoring device of lower outlet;
The suitable for reading connection that tipping bucket (1) is discharged with soil in described soil cylinder (2) bottom, soil cylinder (2) and soilEarth discharge tipping bucket (1) is middle with separating by extraction baffle plate (4); Described soil adds mouthful (3) and is positioned at soilThe top of cylinder (2), in the contrary side of the lower outlet of soil discharge tipping bucket (1), soil adds mouthful (3) and establishesThe sliding door that has circular arc to open up and down;
Described soil heating and stirring system comprise air inlet pipe (5), air heating system (6), stirring motor(7), stir power transmission shaft (8) and stirring vane (9); Described air heating system (6) is positioned at can extractionThe top of baffle plate (4), adopts electric heater unit, is fixed on the inwall of soil cylinder (2) by cross frame;Described stirring motor (7) is positioned at the top of soil cylinder (2), is fixed on soil cylinder (2) by cross frameOn inwall, described stirring power transmission shaft (8) and stirring vane (9) are hollow structure, on stirring vane (9)Be provided with hot air outlet;
Described volatilization waste gas cleaning system is upwards followed successively by volatilization off-gas oxidizing uptake zone from bottom, volatilization is uselessGas alkalization uptake zone, demister, the gas acidized uptake zone of volatilization, activated carbon adsorption layer and exhaust fan;
Described volatilization off-gas oxidizing uptake zone is positioned at the top of soil cylinder (2); Described volatilization off-gas oxidizingIn uptake zone, be provided with volatilization off-gas oxidizing absorbent assembly, described volatilization off-gas oxidizing absorbent assembly comprises and being positioned atThe ozone oxidation water spray system (10) on volatilization off-gas oxidizing assembly top, be positioned at volatilization off-gas oxidizing absorption groupThe ozone oxidation water aqua storage tank (11) of part bottom and be placed in the ozonation aerated dish of ozone oxidation water aqua storage tank(12), described ozonation aerated dish is communicated with ozone generator (13) by aeration tube, also has ozone oxidationOzone oxidation water in water aqua storage tank pumps into the ozone oxidation water-circulating pump (14) of ozone oxidation water spray system;
Described volatilization waste gas alkalization uptake zone is provided with volatilization waste gas alkalization absorbent assembly, described volatilization waste gasAlkalization absorbent assembly comprise be positioned at volatilization waste gas alkalization assembly top alkaline solution spray equipment (15), be positioned atThe alkaline solution aqua storage tank (16) of volatilization waste gas alkalization absorbent assembly bottom and by the alkali in alkaline solution aqua storage tankProperty solution pumps into the alkaline solution circulating pump (17) of alkaline solution spray equipment;
The gas acidized uptake zone of described volatilization is provided with the gas acidized absorbent assembly of volatilization, described volatilization waste gasAcidifying absorbent assembly comprise be positioned at volatilization off-gas oxidizing assembly top acid solution spray equipment (18), be positioned atThe acid solution aqua storage tank (19) of gas acidized absorbent assembly bottom and by the acid in acid solution aqua storage tank volatilizeesProperty solution pumps into the acid solution circulating pump (20) of acid solution spray equipment; Described volatilization waste gas alkalization is inhaledReceive between assembly and the gas acidized absorbent assembly of volatilization and be provided with demister (21); The gas acidized suction of described volatilizationReceive assembly top and be provided with activated carbon adsorption layer (22), in described activated carbon adsorption layer (22), active carbon is set;
In the middle of described serious pollution soil restoring device, for cylindrical, upper and lower two ends are conical tank body, adoptWith vertical vertical placement; The conical tank body place of described serious pollution soil restoring device topmost is provided withExhaust fan (23); Described ozone oxidation water aqua storage tank (11), alkaline solution aqua storage tank (16) and acid solutionAqua storage tank (19) is circle basin shape, ozone oxidation water aqua storage tank (11), alkaline solution aqua storage tank (16) and acid moltenLiquid aqua storage tank (19) top is equipped with shower water aggregation apparatus (24), described shower water aggregation apparatus (24)Lower end diameter is less than ozone oxidation water aqua storage tank (11), alkaline solution aqua storage tank (16) and acid solution aqua storage tank(19) diameter; Shower water aggregation apparatus (24) can make shower water assemble and be back to ozone oxidation water aqua storage tank(11), in alkaline solution aqua storage tank (16) and acid solution aqua storage tank (19);
Described volatilization waste gas alkalization absorbent assembly is also furnished with adder-subtractor, and described adder-subtractor comprises alkali lyeTank and agitating device, alkali liquid tank is communicated with alkaline solution circulating pump (17) by pipeline and valve; The acid of volatilization waste gasChange assembly and be also furnished with acid adding device, described acid adding device comprises acid solution tank and agitating device, and acid solution tank passes throughPipeline and valve are communicated with acid solution circulating pump (20); The bottommost of package unit is provided with three supporting legs (25).
2. serious pollution soil restoring device according to claim 1, is characterized in that: described is smellyOxygen Generator (13), ozone oxidation water-circulating pump (14), alkaline solution circulating pump (17) and acid solution circulationPump (20) is laid between three supporting legs (25) of bottom, the tank body of described serious pollution soil restoring deviceBe provided with groove, be provided with tube connector in groove, tube connector connects aqua storage tank, spray equipment, circulating pumpCome.
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