CN103894413B - A kind of soil remediation upgrading device - Google Patents
A kind of soil remediation upgrading device Download PDFInfo
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- CN103894413B CN103894413B CN201410116607.6A CN201410116607A CN103894413B CN 103894413 B CN103894413 B CN 103894413B CN 201410116607 A CN201410116607 A CN 201410116607A CN 103894413 B CN103894413 B CN 103894413B
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Abstract
The invention discloses a kind of soil remediation upgrading device, comprise thermal analysis apparatus, cyclone is separated material-returning device, pyrolysis installation, gasification installation, pyrolysis gas burner, incinerator and oil-water-gas EGR.Apparatus of the present invention by Soil Thermal is resolved repair process and biomass straw pyrolysis, gasification, pyrolysis gassing burns and pyrolysis gas combustion process is coupled, fully demonstrate the function i ntegration of overall equipment, achieve the mutual coupling in each process between product and energy supply and demand, make package unit not only economize energy, emissions reduction, and key equipment structural compactness achieve product in soil remediation grading process recycle the cascade utilization with energy, there is the advantages such as economize energy, pollution-free, compact equipment.
Description
Technical field
The invention belongs to remediation contaminated soil technical field, relate to a kind of soil remediation upgrading device particularly.
Background technology
Soil is the organic component of ecological environment equipment, the comprehensive natural resources that to be human survival most important and the most basic with development.But, along with the industrialized fast development of China, the unreasonable exploitation of mineral resources and smelt discharge, for a long time to the reason such as to use of the atmospheric sedimentation that soil carries out sewage irrigation and mud is used, human activity causes, chemical fertilizer and agricultural chemicals, cause soil pollution serious.At present, China is one of country that soil pollution is the most serious in the world.According to the data display that Chinese Ministry of Environmental Protection announces for 2006, about 1.5 hundred million mu, the contaminated arable land of China, accounts for 8.3% of 1,800,000,000 mu of arable lands.How to protect China soil, rehabilitating soil pollutes, and sets up eucyclic ecological equipment, realizes the harmony of economy, environment, social benefit, become current major issue urgently to be resolved hurrily.
Soil remediation refers to and utilizes the transfer of physics, chemistry and biological method, absorbs, degrades and transform the pollutant in soil, makes its concentration be reduced to acceptable level, or is harmless material by poisonous and hazardous contamination transform.Conventional soil restoring technology has thermodynamics reparation, Thermal desorption reparation, burning method reparation, land fill reparation, the reparation of chemical leaching method, composting process reparation, phytoremediation, permeable reactive wall reparation, biological prosthetic etc.Wherein, Thermal desorption recovery technique refers to and adopts direct or indirect heat exchange mode, organic pollution is heated to sufficiently high temperature, it is made to evaporate and the process separated from contaminated medium, have technological principle simple, process the advantages such as rapid, be widely used in the soil and the plot that process volatility and half volatile organic contaminant.
But, the Soil Thermal of current employing is resolved recovery technique and is remained in weak point, as patent of invention CN101712042A discloses a kind of directly pyrolysis device, this equipment is by once heating and post bake separate row relax of going forward side by side organic matter from contaminated soil, obviously, this invention needs once providing special fuel with post bake part in specific implementation process, especially at the post bake afterburner producing hot environment, this raising for equipment economy is very disadvantageous, and the pollutant of transfer is not purified process completely.Patent of invention CN 101947543A provides a kind of device utilizing power plant to clean vent gas treatment volatile organic pollution soil, this device adopts the nontoxic steam of power plant after the cleaning such as desulphurization and denitration and dedusting as air supply source, utilize the volatile organic contaminant in its high temperature, high humidity feature reinforces Thermal desorption soil, but volatile organic contaminant resolve after with fume emission to air, can cause secondary pollution, this loses more than gain for remediation contaminated soil.Patent CN 102527705A has invented a kind of soil remediation method, soil to be repaired is delivered in rotary kiln and is added Thermal desorption by the method, use after the soil of roasting is by crusher in crushing, waste gas is by draining into air after demercuration, burning and dedusting, although the method has carried out Environmental capacity process to tail gas, but need in processing procedure to consume additional energy, and the kiln temperature of 450 ~ 800 DEG C also greatly destroys the fertility of soil.
In sum, the Soil Thermal adopted at present resolve restorative procedure ubiquity need to consume amount of heat, repair after soil fertility decline, have secondary pollution problems, in the urgent need to developing the soil remediation method of a kind of economy, efficient, non-secondary pollution.
Summary of the invention
Goal of the invention: the present invention is directed in conventional Soil Thermal parsing repair process and need to consume amount of heat, soil after reparation causes fertility to decline because pH value reduces, the Thermal desorption gas produced, because easily causing secondary pollution problems containing contaminative organic substance, provides a kind of soil remediation upgrading device.
Technical scheme: for solving the problems of the technologies described above, the invention provides a kind of soil remediation upgrading device, comprising:
Thermal analysis apparatus, produces the soil after Thermal desorption gas and purification for carrying out Thermal desorption process to soil to be repaired;
Cyclone is separated material-returning device, is connected with described thermal analysis apparatus, for separating of from thermal analysis apparatus Thermal desorption gas and carry heat purification after soil;
Pyrolysis installation, being separated material-returning device and being connected, for carrying out pyrolytic reaction to biomass straw, biomass straw pyrolysis Heat of Formation being vented one's spleen and biological carbon with described cyclone;
Gasification installation, for gasifying as gasification gas and active carbon by biomass straw;
Pyrolysis gas burner, is connected with described pyrolysis installation, for burning from the pyrolysis gas of pyrolysis installation;
Incinerator, is connected with described gasification installation, for burning the gasification gas of self-gasifying device;
With oil-water-gas EGR, comprise oil circulating pump, feed pump, high temperature circulation blower fan and air compressor machine, the oil-water-gas for whole soil remediation device for improving quality circulates.
Wherein, described thermal analysis apparatus is single channel ICFB thermal analysis apparatus, comprise charging aperture, circulated air chamber inlet, circulation air compartment, Thermal desorption air compartment entrance, Thermal desorption air compartment, resolution gas outlet, Thermal desorption air distribution plate, circulation air distribution plate, jet pipe, Inner eycle dividing plate, the main bed of Thermal desorption, peripheral passage and folding cigarette separating plate, wherein, charging aperture is positioned at the side of the main bed of Thermal desorption; Circulated air chamber inlet is positioned at the below of circulation air compartment and communicates with circulation air compartment; Thermal desorption air compartment entrance is positioned at the below of Thermal desorption air compartment and communicates with Thermal desorption air compartment; Resolution gas outlet is positioned at the top of folding cigarette separating plate; Thermal desorption air distribution plate is positioned at the top of Thermal desorption air compartment, and in horizontally disposed, percent opening is 5 ~ 8%; Circulation air distribution plate is positioned at circulation air compartment top and arranges obliquely, with sidewall 50 ~ 60 ° of angles of thermal analysis apparatus, circulation air distribution plate is provided with multiple horizontally disposed jet pipe, described jet pipe one end is connected with circulation air distribution plate, the other end points to the main bed of Thermal desorption, and multiple jet pipe ensures that air distribution plate percent opening is 6 ~ 10%; The width of peripheral passage and the main bed of Thermal desorption is split by 1: 10 ~ 1: 15 by Inner eycle dividing plate; Folding cigarette separating plate is inverted "L" shaped, is positioned at the top of the main bed of Thermal desorption.
Described cyclone is separated the returning charge air compartment that material-returning device comprises two cyclone cylinders being vertically arranged at returning charge indoor, the central tube being arranged at cyclone cylinder upper end and is arranged at below cyclone cylinder, the bottom of cyclone cylinder is back taper, the bottom of cyclone cylinder is connected with standpipe, the upper end of cyclone cylinder is provided with resolution gas entrance, one end of returning charge air compartment is provided with returning charge wind entrance, and the lower end of resolver entrance flushes with the bottom of central tube; The bottom of returning charge room is provided with returning charge mouth; The upper surface of returning charge air compartment is provided with returning charge air distribution plate, returning charge air distribution plate is along the downward-sloping layout in direction away from returning charge wind entrance, horizontal by 15 ~ 25 ° of angles, and the returning charge aperture that aperture increases gradually is provided with successively in the side away from returning charge wind entrance, the overall percent opening of returning charge air distribution plate is 3 ~ 7%.
Described pyrolysis installation comprises two-way Inner eycle pyrolysis unit, pyrolysis cyclical wind unit and single channel outer circulation gas solid separation unit, wherein, described two-way Inner eycle pyrolysis unit comprises pyrolysis material inlet, the main bed of pyrolysis, with the Inner eycle left channel and the Inner eycle right channel that are symmetricly set in the main bed both sides of pyrolysis, be positioned at the pyrolysis propagation chamber above the main bed of pyrolysis and the pyrolysis leaching plate being arranged at propagation chamber top, described Inner eycle left channel is provided with returning charge mouth at the sidewall of pyrolysis installation, described pyrolysis leaching plate offering aperture is 5 ~ 10mm leaching hole, percent opening is 15 ~ 20%, described pyrolysis cyclical wind unit comprises the pyrolysis air compartment be arranged at below the main bed of pyrolysis and the pyrolysis cyclical air compartment being symmetricly set in pyrolysis air compartment both sides, the upper surface of described pyrolysis air compartment is pyrolysis air distribution plate, percent opening is 3 ~ 7%, the upper surface of described pyrolysis cyclical air compartment is pyrolysis cyclical air distribution plate, the wall of described pyrolysis cyclical air distribution plate and pyrolysis installation is 38 ~ 45 ° of angles, described pyrolysis cyclical air distribution plate is provided with multiple directed airduct, described directed airduct one end is connected with pyrolysis cyclical air distribution plate, the other end points to the main bed of pyrolysis, multiple directed airduct ensures that the percent opening of pyrolysis cyclical air distribution plate is 5 ~ 10%, the bottom of described pyrolysis air compartment is provided with pyrolysis air intake, the bottom of described pyrolysis cyclical air compartment is provided with pyrolysis cyclical wind entrance, described single channel outer circulation gas solid separation unit comprise be arranged at two-way Inner eycle pyrolysis unit side external circulation path, be arranged at ash resistanting plate above external circulation path and parallel with pyrolysis installation sidewall, be arranged at pyrolysis gas outlet above material blanking tube below external circulation path and external circulation path, described pyrolysis unit is also provided with overflow pipe, described overflow pipe is arranged in the outside wall surface between pyrolysis material inlet and returning charge mouth, described outside wall surface is towards air, Open Side Down for described overflow pipe, is 35 ~ 50 ° of angles with described outside wall surface.
Wherein, described Inner eycle left channel and Inner eycle right channel are surrounded by the sidewall of pyrolysis expansion board, pyrolysis dividing plate, pyrolysis cyclical air distribution plate and pyrolysis installation respectively, and described pyrolysis expansion board arranges obliquely and is 38 ~ 45 ° of angles with the sidewall of pyrolysis installation.
Described gasification installation is two-way Inner eycle gasification installation, comprise two-way Inner eycle gasification unit, gasification cycle wind unit and gas-solid separative element, wherein, described two-way Inner eycle gasification unit comprises gasification materiel entrance, gasify main bed, be symmetricly set in the circulation passage of main bed both sides of gasifying, be positioned at the gasification propagation chamber above the main bed of gasification and the gasification leaching plate being arranged at gasification propagation chamber top, described gasification materiel entrance is communicated with circulation passage by tremie pipe, described gasification leaching plate offering aperture is 5 ~ 10mm gasification leaching hole, percent opening is 15 ~ 20%, described gasification cycle wind unit comprises the gasification air compartment be arranged at below the main bed of gasification and the gasification cycle air compartment being symmetricly set in gasification air compartment both sides, the upper surface of described gasification air compartment is gasification air distribution plate, percent opening is 3 ~ 7%, the upper surface of described gasification cycle air compartment is gasification cycle air distribution plate, the wall of described gasification cycle air distribution plate and gasification installation is 30 ~ 40 ° of angles, described gasification cycle air distribution plate is provided with multiple loosening airduct, described loosening airduct one end is connected with gasification cycle air distribution plate, the other end points to the main bed of gasification, multiple loosening airduct ensures that the percent opening of gasification cycle air distribution plate is 5 ~ 10%, the sidewall of described gasification cycle air compartment is provided with gasification cycle wind entrance, the bottom of described gasification air compartment is provided with gasification air entrance, the middle part of the main bed of described gasification is provided with the snakelike tube bank of conduction oil, described gas solid separation unit is arranged at the side of two-way Inner eycle gasification unit, comprise the outlet of gasification gas, active carbon discharge nozzle and gasification ash resistanting plate, described gasification gas outlet is arranged at the upper end of gasification installation outer wall, described active carbon discharge nozzle is arranged at the top of gasification materiel entrance, and described gasification ash resistanting plate is vertically arranged at the top of tremie pipe and parallel with the sidewall of gasification installation.
Described circulation passage is surrounded by the sidewall of gasification expansion board, gasification dividing plate, gasification cycle air distribution plate and gasification installation respectively, and described gasification expansion board arranges obliquely and is 38 ~ 45 ° of angles with the sidewall of gasification installation.
Described incinerator is disposed with incineration gases entrance, primary oil heater, water heater, cross-flow moving bed and exhaust opening, wherein, described gas access comprises pyrolysis gassing entrance, gasification gas entrance and burns air intake, and described cross-flow moving bed two ends are respectively equipped with active carbon entrance and active carbon outlet.
Described pyrolysis gas burner is disposed with combustion air inlet, secondary oil heater and steam superheater, and wherein, described combustion air inlet comprises pyrolysis gas entrance and combustion air inlet.
Described described oil circulating pump is connected with incinerator, pyrolysis gas burner and gasification installation successively; Described feed pump is connected with pyrolysis gas burner with incinerator successively; The import of described high temperature circulation blower fan is connected with pyrolysis gas burner, exports and is connected with thermal analysis apparatus; Described used for air compressor in being respectively pyrolysis installation, gasification installation, incinerator and burner air feed.
In application process, soil to be repaired enters single channel ICFB thermal analysis apparatus from charging aperture, the circulating flue gas of 420 ~ 560 DEG C enters Thermal desorption air compartment from Thermal desorption air compartment entrance, then main bed is evenly flowed into by the rectified action of Thermal desorption air distribution plate, like this, soil moves upward under the fluidization of heat smoke in the main bed of Thermal desorption, when both are through folding cigarette separating plate, thick soil particle moves downward along peripheral passage, and together return main bed in circulation air distribution plate region and the soil to be repaired just added, in the process, the physical sensible heat of soil absorption flue gas and Thermal desorption occurs, volatility wherein and half volatile organic contaminant are separated out and are become Thermal desorption gas, these gases are carried tiny soil particle secretly and are entered cyclone separation material-returning device by folding cigarette separating plate, through cyclonic separation process, Thermal desorption gas leaves equipment from clean resolution gas export pipeline, and the soil particle carrying partial heat enters returning charge room from standpipe, finally by gathering and the fluidization of the returning charge air distribution plate be in tilted layout, pyrolysis installation is entered by returning charge entrance,
Pyrolysis biomass straw enters pyrolysis installation from pyrolysis material inlet, the soil entered with returning charge mouth mixes in the main bed of pyrolysis, then under the fluidization of air, in bed, experience repeatedly the motion of two-way Inner eycle, in the process, the sensible heat that stalk material absorbs soil is rapidly heated, concurrent raw pyrolytic reaction, reaction temperature remains in 400 ~ 500 DEG C, Heat of Formation is vented one's spleen and charcoal, the former leaves equipment after the inertial separation effect of single channel outer circulation gas solid separation unit, the fine grained separated and biomass straw together return the main bed of pyrolysis, biological carbon then with soil Homogeneous phase mixing after from overflow pipe device for transferring,
Gasified bio-matter stalk enters gasification installation from gasification materiel entrance, in bed, Inner eycle motion is done under the fluidization of partial air and water vapour, when Dual-Phrase Distribution of Gas olid gasify upwards to flow through the snakelike tube bank of conduction oil in main bed time, bed material absorbs heat wherein fast, bed temperature rises between 700 ~ 850 DEG C, under such hot environment, in stalk material, organic matter reacts with steam generating gasification together with oxygen, generate containing carbon monoxide, hydrogen, the combustible components such as methane are main gasification gas and active carbon, finally, through the inertial separation effect of gas-solid separation equipment, gasification gas is separated with active carbon, the former is from gasification gas outlet outflow equipment, the latter leaves equipment from active carbon discharge nozzle,
The gasification gas of coming from gasification installation enters incinerator together with combustion air, combustion zone is formed after ignition, simultaneously, the Thermal desorption gas come from thermal analysis apparatus rotates into combustion high temperature region, now, majority of organic pollutants changes into pollution-free gaseous state thing, and generation temperature of burning together with combustible is the heat smoke of about 1000 DEG C, then, flue gas is by primary oil heater, by the heat-conducting oil heating that returns from gasification installation to about 620 DEG C, and flue-gas temperature is reduced to about 650 DEG C, then, flue gas passes through water heater again, gasified water is heated into saturated vapor, and flue-gas temperature is reduced to about 160 DEG C further, finally, low-temperature flue gas is horizontally through cross-flow moving bed, fully contact with the active carbon come from gasification installation in bed, pollutant is removed, flue gas after purification enters air,
The pyrolysis gas of coming from pyrolysis installation enters pyrolysis gas combustion apparatus together with combustion air, generate the heat smoke that temperature is about 1100 DEG C, then, flue gas is by secondary oil heater, by about the heat-conducting oil heating to 860 of coming from incinerator DEG C, conduction oil after heating is back to equipment for gasification by oil circulating pump supercharging, and flue-gas temperature is reduced to about 800 DEG C, then, flue gas passes through steam superheater again, saturated vapor is heated to superheated steam, and flue-gas temperature is reduced to 500 ~ 580 DEG C further, finally, by the supercharging of high temperature circulation blower fan, flue gas is back to thermal analysis apparatus again.
Beneficial effect: compared with prior art, tool of the present invention has the following advantages:
(1) soil remediation upgrading device of the present invention passes through thermal analysis apparatus, pyrolysis installation, gasification installation, cooperatively interacting between incinerator and burner, Soil Thermal is resolved the pyrolysis of repair process and biomass straw, gasification, pyrolysis gassing burns and pyrolysis gas combustion process is coupled, this has fully demonstrated the function i ntegration of overall equipment, achieve the mutual coupling in each process between product and energy supply and demand, make package unit not only economize energy, emissions reduction, and key equipment structural compactness.
(2) thermal analysis apparatus of the present invention have employed single channel ICFB, extends the time of staying of soil to be repaired in bed, and make Thermal desorption process fully thorough, circulation air distribution plate adopts horizontally disposed jet pipe, contributes to the Rapid Circulation of bed material.
(3) material-returning device of the present invention have employed the inclined distributor having non-homogeneous aperture, and this arrangement contributes to the directional collecting of material toward pyrolysis plant side, also contributes to the equal control of returning charge amount.
(4) pyrolysis installation of the present invention comprises two-way Inner eycle pyrolysis unit, pyrolysis cyclical wind unit and single channel outer circulation gas solid separation unit, this building mode has used for reference the layout thought of spouted bed with draft tube, be of value to the Inner eycle of bed material, meanwhile, Inner eycle and the use in conjunction of outer circulation contribute to the efficient of gas-solid and are separated.
(5) gasification installation of the present invention have employed two-way ICFB, contributes to the Inner eycle of bed material, and meanwhile, the collection of active carbon adopts external inertia separator, not only achieves the compactedness of equipment, also achieves the efficient separation of gasification gas.
(6) the present invention is by soil remediation and soil upgrading coupling, simultaneously recycling treatment agriculture and forestry organic waste material, is specially adapted to repair polluted soil in the rural area that biomass straw is abundant in urbanization process.
Accompanying drawing explanation
Fig. 1 is soil remediation upgrading device schematic diagram of the present invention, Qi Zhongyou: thermal analysis apparatus I, cyclone are separated material-returning device II, pyrolysis installation III, pyrolysis gas burner V, incinerator VI and oil-water-gas EGR VII, charging aperture A, pyrolysis material inlet I
in, combustion air inlet Q, burn air intake R, active carbon entrance S, active carbon outlet T, exhaust opening U, pyrolysis gassing entrance V
in, gasification gas entrance W, pyrolysis gas entrance X, oil circulating pump 52, primary oil heater 53, secondary oil heater 54, feed pump 55, water heater 56, steam superheater 57, cross-flow moving bed 58, air compressor machine 59 and high temperature circulation blower fan 60;
Fig. 2 is soil remediation upgrading device rearview of the present invention, Qi Zhongyou: thermal analysis apparatus I, cyclone are separated material-returning device II, gasification installation IV, pyrolysis gas burner V, incinerator VI and oil gas EGR VII, charging aperture A, gasification materiel entrance M, burn wind entrance R, combustion air inlet Q, active carbon entrance S, active carbon outlet T, exhaust opening U, oil circulating pump 52, primary oil heater 53, secondary oil heater 54, feed pump 55, water heater 56, steam superheater 57, cross-flow moving bed 58, air compressor machine 59 and high temperature circulation blower fan 60;
Fig. 3 is soil remediation upgrading device right view of the present invention, Qi Zhongyou: pyrolysis plant III, equipment for gasification IV, returning charge wind entrance E, clean resolution gas outlet G, pyrolysis cyclical wind entrance H, pyrolysis material inlet I
in, pyrolysis gas outlet J, gasification cycle wind entrance L, gasification materiel entrance M, gasification gas outlet N, returning charge air distribution plate 11, the snakelike tube bank 44 of conduction oil, tremie pipe 51 and overflow pipe 61;
Fig. 4 is soil remediation device for improving quality top view of the present invention, Qi Zhongyou: thermal analysis apparatus I, cyclone are separated material-returning device II, pyrolysis installation III, gasification installation IV, pyrolysis gas burner V, incinerator VI, charging aperture A, gasification materiel entrance M, active carbon entrance S, pyrolysis material inlet I, exhaust opening U, pyrolysis gassing entrance V
in, gasification gas entrance W, pyrolysis gas entrance X, the snakelike tube bank 44 of conduction oil and overflow pipe 61;
Fig. 5 is the 3-D view of the thermal analysis apparatus in soil remediation upgrading device of the present invention, left figure is perspective view, right figure is normal view, Qi Zhongyou: charging aperture A, Thermal desorption air compartment entrance B, circulated air chamber inlet C, resolution gas outlet D, circulation air compartment 1, circulation air distribution plate 2, jet pipe 3, Thermal desorption air compartment 4, Thermal desorption air distribution plate 5, the main bed 6 of Thermal desorption, Inner eycle dividing plate 7, peripheral passage 8 and folding cigarette separating plate 9;
Fig. 6 is the 3-D view of the cyclone separation material-returning device in soil remediation upgrading device of the present invention, Qi Zhongyou: returning charge wind entrance E, resolution gas entrance F, clean resolution gas outlet G, returning charge air compartment 10, returning charge air distribution plate 11, returning charge aperture 12, left plate 13, right plate 14, returning charge mouth 15, cyclone cylinder 16, central tube 17, returning charge room 18 and standpipe 19;
Fig. 7 is the 3-D view of the pyrolysis installation in soil remediation upgrading device of the present invention, Qi Zhongyou: pyrolysis cyclical wind entrance H, pyrolysis material inlet I
in, pyrolysis gas outlet J, pyrolysis air intake K, returning charge mouth 15, material blanking tube 20, external circulation path 21, Inner eycle right channel 22, pyrolysis air compartment 23, pyrolysis air distribution plate 24, pyrolysis cyclical air compartment 25, pyrolysis cyclical air distribution plate 26, directed airduct 27, Inner eycle left channel 28, the main bed 29 of pyrolysis, dividing plate 30, expansion board 31, propagation chamber 32, leaching plate 33, leaching hole 34 and ash resistanting plate 35;
Fig. 8 is the 3-D view of the equipment for gasification in soil remediation upgrading device of the present invention, Qi Zhongyou: gasification cycle wind entrance L, gasification materiel entrance M, the outlet of gasification gas N, gasification air entrance O, gasified water steam inlet P, gasification air compartment 36, gasification air distribution plate 37, gasification cycle air compartment 38, gasification cycle air distribution plate 39, loosening airduct 40, dividing plate 41, the main bed 42 that gasifies, circulation passage 43, the snakelike tube bank 44 of conduction oil, expansion board 45, propagation chamber 46, leaching plate 47, leaching hole 48, ash resistanting plate 49, active carbon discharge nozzle 50 and tremie pipe 51.
Detailed description of the invention
The invention process is described in detail referring to Fig. 1-8.The present embodiment is implemented under premised on the technical program, gives detailed embodiment and operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in figures 1-4, soil restoring device of the present invention mainly comprises five parts: thermal analysis apparatus I, cyclone are separated material-returning device II, pyrolysis installation III, gasification installation IV, incinerator VI and pyrolysis gas burner V.Meanwhile, also comprise oil-water-gas EGR VII, comprise oil circulating pump 52, feed pump 55, high temperature circulation blower fan 60 and air compressor machine 59, the oil-water-gas for whole soil remediation device for improving quality circulates.
Wherein, thermal analysis apparatus I is used for carrying out the soil after Thermal desorption process generation Thermal desorption gas and purification to soil to be repaired; Cyclone is separated material-returning device II and is connected with thermal analysis apparatus I, for separating of from thermal analysis apparatus I Thermal desorption gas and carry heat purification after soil; Pyrolysis installation III is separated material-returning device II and is connected with cyclone, for carrying out pyrolytic reaction to biomass straw, biomass straw pyrolysis Heat of Formation is vented one's spleen and biological carbon; It is gasification gas and active carbon that gasification installation IV is used for biomass straw gasification; Incinerator VI is connected with gasification installation IV for the gasification gas of the self-gasifying device IV that burns; Pyrolysis gas burner V is connected with pyrolysis installation III, for burning from the pyrolysis gas of pyrolysis installation III.Meanwhile, also comprise oil-water-gas EGR VII, comprise oil circulating pump 52, feed pump 55, high temperature circulation blower fan 60 and air compressor machine 59, the oil-water-gas for whole soil remediation device for improving quality circulates.
Fig. 5 is the schematic diagram of thermal analysis apparatus I, thermal analysis apparatus of the present invention adopts single channel ICFB thermal analysis apparatus, comprises charging aperture A, circulated air chamber inlet C, circulation air compartment 1, Thermal desorption air compartment entrance B, Thermal desorption air compartment 4, resolution gas outlet D, Thermal desorption air distribution plate 5, circulation air distribution plate 2, jet pipe 3, Inner eycle dividing plate 7, the main bed 6 of Thermal desorption, peripheral passage 8 and folding cigarette separating plate 9.Wherein, charging aperture A is positioned at the side of the main bed 6 of Thermal desorption; Circulated air chamber inlet C is positioned at the below of circulation air compartment 1 and communicates with circulation air compartment 1; Thermal desorption air compartment entrance position B is in the below of Thermal desorption air compartment 4 and communicate with Thermal desorption air compartment 4; Resolution gas outlet is positioned at the top of folding cigarette separating plate 9; Thermal desorption air distribution plate 5 is positioned at the top of Thermal desorption air compartment 4, and in horizontally disposed, percent opening is 8%; Circulation air distribution plate 2 is positioned at circulation air compartment 1 top and arranges obliquely, be 38 ° of angles with the sidewall of thermal analysis apparatus, circulation air distribution plate 2 is provided with multiple horizontally disposed jet pipe 3, jet pipe 3 one end is connected with circulation air distribution plate 2, the other end points to the main bed 6 of Thermal desorption, and multiple jet pipe 3 ensures that air distribution plate percent opening is 6%; The width of peripheral passage 8 and the main bed 6 of Thermal desorption is split by 1: 12 by Inner eycle dividing plate 7; Folding cigarette separating plate 9, in inverted "L" shaped, is positioned at the top of the main bed 6 of Thermal desorption.
Fig. 6 is the schematic diagram that cyclone is separated material-returning device.As shown in the figure, this cyclone is separated material-returning device and comprises two cyclone cylinders 16 be vertically arranged in returning charge room 18, the central tube 17 being arranged at cyclone cylinder 16 upper end and the returning charge air compartment 10 be arranged at below cyclone cylinder 16, the bottom of cyclone cylinder 16 is back taper, the bottom of cyclone cylinder is connected with standpipe 19, the upper end of cyclone cylinder 16 is provided with resolution gas entrance F, one end of returning charge air compartment 10 is provided with returning charge wind entrance, and the lower end of resolution gas entrance F flushes with the bottom of central tube 17; The bottom of returning charge room 18 is provided with returning charge mouth 15; The upper surface of returning charge air compartment 10 is provided with returning charge air distribution plate 11, returning charge air distribution plate 11 is along the downward-sloping layout in direction away from returning charge wind entrance, horizontal by 20 ° of angles, and the returning charge aperture 12 that aperture increases gradually is provided with successively in the side away from returning charge wind entrance, the overall percent opening of returning charge air distribution plate 11 is 5%.
Fig. 7 is that pyrolysis installation comprises two-way Inner eycle pyrolysis unit, pyrolysis cyclical wind unit and single channel outer circulation gas solid separation unit, and wherein, two-way Inner eycle pyrolysis unit comprises pyrolysis material inlet I
in, the main bed of pyrolysis 29 and be symmetricly set in the Inner eycle left channel 28 of pyrolysis main bed 29 both sides and Inner eycle right channel 22, be positioned at the pyrolysis propagation chamber 32 above the main bed 29 of pyrolysis and be arranged at the pyrolysis leaching plate 33 at propagation chamber 32 top, Inner eycle left channel 28 is provided with returning charge mouth 15 at the sidewall of pyrolysis installation, pyrolysis leaching plate 33 offering aperture is 5mm leaching hole 34, and percent opening is 18%, pyrolysis cyclical wind unit comprises the pyrolysis air compartment 23 be arranged at below the main bed 29 of pyrolysis and the pyrolysis cyclical air compartment 25 being symmetricly set in pyrolysis air compartment 23 both sides, the upper surface of pyrolysis air compartment 23 is pyrolysis air distribution plate 24, percent opening is 5%, the upper surface of pyrolysis cyclical air compartment 25 is pyrolysis cyclical air distribution plate 26, pyrolysis cyclical air distribution plate 26 is 38 ~ 45 ° of angles with the wall of pyrolysis installation, pyrolysis cyclical air distribution plate 26 is provided with multiple directed airduct 27, directed airduct 27 one end is connected with pyrolysis cyclical air distribution plate 26, the other end points to the main bed 29 of pyrolysis, multiple directed airduct 27 ensures that the percent opening of pyrolysis cyclical air distribution plate 26 is 8%, the bottom of pyrolysis air compartment 23 is provided with pyrolysis air intake K, the bottom of pyrolysis cyclical air compartment 25 is provided with pyrolysis cyclical wind entrance H, single channel outer circulation gas solid separation unit comprise be arranged at two-way Inner eycle pyrolysis unit side external circulation path 21, be arranged at ash resistanting plate 35 above external circulation path and parallel with pyrolysis installation sidewall, be arranged at the material blanking tube 20 below external circulation path and the pyrolysis gas outlet J above external circulation path, pyrolysis unit is also provided with overflow pipe 61, and this overflow pipe 61 is arranged in the outside wall surface between pyrolysis material inlet and returning charge mouth 15, and this outside wall surface is towards ambient atmosphere, and Open Side Down for overflow pipe 61, is 35 ~ 50 ° of angles with outside wall surface.Wherein, Inner eycle left channel 28 and Inner eycle right channel 22 are surrounded by the sidewall of pyrolysis expansion board 31, pyrolysis dividing plate 30, pyrolysis cyclical air distribution plate 26 and pyrolysis installation respectively, and pyrolysis expansion board 31 arranges obliquely and is 40 ° of angles with the sidewall of pyrolysis installation.
Fig. 8 is the schematic diagram of gasification installation, comprise two-way Inner eycle gasification unit, gasification cycle wind unit and gas-solid separative element, wherein, two-way Inner eycle gasification unit comprises gasification materiel entrance M, gasify main bed 42, with the circulation passage 43 being symmetricly set in main bed 42 both sides of gasifying, be positioned at the gasification propagation chamber 46 above the main bed 42 of gasification and the gasification leaching plate 47 being arranged at gasification propagation chamber 46 top, gasification materiel entrance M is communicated with circulation passage 43 by tremie pipe 51, gasification leaching plate 47 offering aperture is 5 ~ 10mm gasification leaching hole 48, percent opening is 18%, gasification cycle wind unit comprise the gasification air compartment 36 be arranged at below the main bed 42 of gasification and the gasification cycle air compartment 38 being symmetricly set in gasification air compartment 36 both sides, the upper surface of gasification air compartment 36 is gasification air distribution plate 37, percent opening is 5%, the upper surface of gasification cycle air compartment 38 is gasification cycle air distribution plate 39, gasification cycle air distribution plate 40 is 35 ° of angles with the wall of gasification installation, gasification cycle air distribution plate 39 is provided with multiple loosening airduct 40, loosen airduct 40 one end to be connected with gasification cycle air distribution plate 39, the other end points to the main bed 42 of gasification, multiple loosening airduct 40 ensures that the percent opening of gasification cycle air distribution plate 39 is 8%, the sidewall of gasification cycle air compartment 38 be provided with gasification cycle wind entrance L, the bottom of gasification air compartment 36 be provided with gasification air entrance O, the gasify middle part of main bed 42 is provided with the snakelike tube bank 44 of conduction oil, gas solid separation unit is arranged at the side of two-way Inner eycle gasification unit, comprise gasification gas outlet N, active carbon discharge nozzle 50 and gasification ash resistanting plate 49, gasification gas outlet N is arranged at the upper end of gasification installation outer wall, active carbon discharge nozzle 50 is arranged at the top of gasification materiel entrance, and gasification ash resistanting plate 49 is vertically arranged at the top of tremie pipe 51 and parallel with the sidewall of gasification installation.Wherein, circulation passage 43 is surrounded by the sidewall of gasification expansion board 45, gasification dividing plate 41, gasification cycle air distribution plate 39 and gasification installation respectively, and gasification expansion board 45 arranges obliquely and is 40 ° of angles with the sidewall of gasification installation.
Incinerator is disposed with incineration gases entrance, primary oil heater 53, water heater 5, cross-flow moving bed 58 and exhaust opening, and wherein, gas access comprises pyrolysis gassing entrance V
in, gasification gas entrance W and burn air intake R, the two ends of cross-flow moving bed 58 are respectively equipped with active carbon entrance S and active carbon outlet T.Pyrolysis gas burner is disposed with combustion air inlet, secondary oil heater 54 and steam superheater 57, wherein, combustion air inlet comprise pyrolysis gas entrance X and combustion air inlet Q.
The oil-water-gas balance of whole equipment arranges realization by following: oil circulating pump 52 is connected with incinerator, pyrolysis gas burner and gasification installation successively; Feed pump 55 is connected with pyrolysis gas burner with incinerator successively; The import of high temperature circulation blower fan 60 is connected with pyrolysis gas burner, exports and is connected with thermal analysis apparatus; Air compressor machine 59 is for being respectively pyrolysis installation, gasification installation, incinerator and burner air feed.
The present embodiment is for by certain gas station's contaminated soil, and wherein containing organic pollution 50.6mg/kg, concrete implementation step is as follows:
(1) soil to be repaired enters single channel ICFB thermal analysis apparatus by circulation air distribution plate, the circulating flue gas of 500 DEG C enters Thermal desorption air compartment from Thermal desorption air compartment entrance, then main bed is evenly flowed into by the rectified action of Thermal desorption air distribution plate, like this, soil absorbs flue gas heat limit below in the fluidization of heat smoke and moves upward in the main bed of Thermal desorption, when both are through being inverted "L" shaped folding cigarette separating plate, thick soil particle moves downward along peripheral passage, in the process, soil generation Thermal desorption, volatility wherein and half volatile organic contaminant are separated out and are become Thermal desorption gas, and carry tiny soil particle secretly and leave equipment,
(2) Thermal desorption gas enters cyclone and is separated returning charge equipment, through cyclonic separation process, Thermal desorption gas leaves equipment from clean resolution gas export pipeline, and the soil particle carrying partial heat falls returning charge air distribution plate from standpipe, returning charge wind enters returning charge room by returning charge aperture, by anterior soil particle fluidisation, and leave equipment by returning charge mouth;
(3) pyrolysis biomass straw enters pyrolysis plant from pyrolysis material inlet, the hometown earth entered with returning charge mouth mixes in the main bed of pyrolysis, pyrolysis wind is by horizontal air distribution plate fluidisation stalk and soil mixture, they are carried into pyrolysis propagation chamber, due to the unexpected reduction of air velocity, part particle slips down to peripheral passage, the left and right sides along pyrolysis expansion board, and slowly move to circulation air distribution plate, circulated air blows to main bed by directed airduct the stalk on the returning charge in left side and recycle stock and right side and recycle stock, participate in next circulation, in the process, the sensible heat that stalk material absorbs soil is rapidly heated, concurrent raw pyrolytic reaction, reaction temperature remains on about 500 DEG C, Heat of Formation is vented one's spleen and charcoal, the former leaves equipment after the inertial separation effect of external circulation path, the fine grained separated and biomass straw together return the main bed of pyrolysis, from overflow pipe device for transferring after the latter and soil Homogeneous phase mixing, analysis soil constituent finds, now organic pollution content reduces greatly, and charcoal content significantly improves,
(4) gasified bio-matter stalk enters gasification installation from gasification materiel entrance, gasification wind is by horizontal air distribution plate fluidisation stalk, and stalk is carried into gasification propagation chamber together with the water vapour entered, due to the unexpected reduction of air velocity, part particle slips down to peripheral passage, the left and right sides along gasification expansion board, and slowly move to circulation air distribution plate, circulated air blows to the stalk on the recycle stock in left side and right side and recycle stock the main bed that gasifies by loosening airduct, participate in next circulation, in the process, when Dual-Phrase Distribution of Gas olid gasify to move upwardly through the snakelike tube bank of conduction oil in main bed time, bed material absorbs heat wherein fast, bed temperature is made to rise to about 820 DEG C, under such hot environment, in stalk material, organic matter reacts with steam generating gasification together with oxygen, generate containing carbon monoxide, hydrogen, the combustible components such as methane are main gasification gas and active carbon, finally, through the inertial separation effect of external circulation line, gasification gas is separated with active carbon, the former is from gasification gas outlet outflow equipment, the latter leaves equipment from active carbon discharge nozzle,
(5) the gasification gas come from equipment for gasification enters incinerator together with combustion air, combustion zone is formed after ignition, simultaneously, the Thermal desorption gas come from single channel ICFB thermal analysis apparatus rotates into combustion high temperature region, at high-temperature area, majority of organic pollutants changes into pollution-free gaseous state thing, and generation temperature of burning together with combustible is the heat smoke of about 1000 DEG C, then, flue gas is by primary oil heater, by the heat-conducting oil heating that returns from two-way Inner eycle equipment for gasification to about 620 DEG C, and flue-gas temperature is reduced to about 650 DEG C, then, flue gas passes through water heater again, gasified water is heated into saturated vapor, and flue-gas temperature is reduced to about 160 DEG C further, finally, low-temperature flue gas is horizontally through cross-flow moving bed, fully contact with the active carbon come from two-way Inner eycle equipment for gasification in bed, pollutant is removed, flue gas after purification enters air,
(6) pyrolysis gas come from pyrolysis installation enters pyrolysis gas burner together with combustion air, generate the heat smoke that temperature is about 1100 DEG C, then, flue gas is by secondary oil heater, by about the heat-conducting oil heating to 860 of coming from incinerator DEG C, conduction oil after heating is back to equipment for gasification by oil circulating pump supercharging, and flue-gas temperature is reduced to about 800 DEG C, then, flue gas passes through steam superheater again, saturated vapor is heated to superheated steam, and flue-gas temperature is reduced to about 500 DEG C further, finally, by the supercharging of high temperature circulation blower fan, flue gas is back to again single channel ICFB thermal analysis apparatus, participate in Thermal desorption process.
Soil remediation upgrading device of the present invention passes through thermal analysis apparatus, pyrolysis installation, gasification installation, cooperatively interacting between incinerator and burner, Soil Thermal is resolved the pyrolysis of repair process and biomass straw, gasification, pyrolysis gassing burns and pyrolysis gas combustion process is coupled, this has fully demonstrated the function i ntegration of overall equipment, achieve the mutual coupling in each process between product and energy supply and demand, make package unit not only economize energy, emissions reduction, and key equipment structural compactness.Thermal analysis apparatus of the present invention have employed single channel ICFB, extends the time of staying of soil to be repaired in bed, and make Thermal desorption process fully thorough, circulation air distribution plate adopts horizontally disposed jet pipe, contributes to the Rapid Circulation of bed material.In material-returning device, have employed the inclined distributor having non-homogeneous aperture, this arrangement contributes to the directional collecting of material toward pyrolysis plant side, also contributes to the equal control of returning charge amount.Simultaneously, pyrolysis installation of the present invention comprises two-way Inner eycle pyrolysis unit, pyrolysis cyclical wind unit and single channel outer circulation gas solid separation unit, this building mode has used for reference the layout thought of spouted bed with draft tube, be of value to the Inner eycle of bed material, meanwhile, Inner eycle and the use in conjunction of outer circulation contribute to the efficient of gas-solid and are separated.Gasification installation of the present invention have employed two-way ICFB, contributes to the Inner eycle of bed material, and meanwhile, the collection of active carbon adopts external inertia separator, not only achieves the compactedness of equipment, also achieves the efficient separation of gasification gas.By soil remediation and soil upgrading being coupled, recycling treatment agriculture and forestry organic waste material simultaneously, the present invention is specially adapted to repair polluted soil in the rural area that biomass straw is abundant in urbanization process.
Claims (10)
1. a soil remediation upgrading device, is characterized in that, comprising:
Thermal analysis apparatus, produces the soil after Thermal desorption gas and purification for carrying out Thermal desorption process to soil to be repaired;
Cyclone is separated material-returning device, is connected with described thermal analysis apparatus, for separating of from thermal analysis apparatus Thermal desorption gas and carry heat purification after soil;
Pyrolysis installation, being separated material-returning device and being connected, for carrying out pyrolytic reaction to biomass straw, biomass straw pyrolysis Heat of Formation being vented one's spleen and biological carbon with described cyclone;
Gasification installation, for gasifying as gasification gas and active carbon by biomass straw;
Pyrolysis gas burner, is connected with described pyrolysis installation, for burning from the pyrolysis gas of pyrolysis installation;
Incinerator, is connected with described gasification installation, for burning the gasification gas of self-gasifying device;
With oil-water-gas EGR, comprise oil circulating pump (52), feed pump (55), high temperature circulation blower fan (60) and air compressor machine (59), the oil-water-gas for whole soil remediation device for improving quality circulates.
2. soil remediation upgrading device according to claim 1, it is characterized in that, described thermal analysis apparatus is single channel ICFB thermal analysis apparatus, comprise charging aperture, circulated air chamber inlet, circulation air compartment (1), Thermal desorption air compartment entrance, Thermal desorption air compartment (4), resolution gas exports, Thermal desorption air distribution plate (5), circulation air distribution plate (2), jet pipe (3), Inner eycle dividing plate (7), the main bed of Thermal desorption (6), peripheral passage (8) and folding cigarette separating plate (9), wherein, charging aperture is positioned at the side of the main bed of Thermal desorption (6), circulated air chamber inlet is positioned at the below of circulation air compartment (1) and communicates with circulation air compartment (1), Thermal desorption air compartment entrance is positioned at the below of Thermal desorption air compartment (4) and communicates with Thermal desorption air compartment (4), resolution gas outlet is positioned at the top of folding cigarette separating plate (9), Thermal desorption air distribution plate (5) is positioned at the top of Thermal desorption air compartment (4), and in horizontally disposed, percent opening is 5 ~ 8%, circulation air distribution plate (2) is positioned at circulation air compartment (1) top and arranges obliquely, with sidewall 50 ~ 60 ° of angles of thermal analysis apparatus, circulation air distribution plate (2) is provided with multiple horizontally disposed jet pipe (3), described jet pipe (3) one end is connected with circulation air distribution plate (2), the other end points to the main bed of Thermal desorption (6), and multiple jet pipe (3) ensures that air distribution plate percent opening is 6 ~ 10%, the width of peripheral passage (8) and the main bed of Thermal desorption (6) is split by 1: 10 ~ 1: 15 by Inner eycle dividing plate (7), folding cigarette separating plate (9), in inverted "L" shaped, is positioned at the top of the main bed of Thermal desorption (6).
3. soil remediation upgrading device according to claim 1, it is characterized in that, described cyclone is separated material-returning device and comprises two cyclone cylinders (16) be vertically arranged in returning charge room (18), be arranged at the central tube (17) of cyclone cylinder (16) upper end and be arranged at the returning charge air compartment (10) of cyclone cylinder (16) below, the bottom of cyclone cylinder is back taper, the bottom of cyclone cylinder is connected with standpipe (19), the upper end of cyclone cylinder (16) is provided with resolution gas entrance, one end of returning charge air compartment (10) is provided with returning charge wind entrance, the lower end of resolver entrance flushes with the bottom of central tube (17), the bottom of returning charge room (18) is provided with returning charge mouth (15), the upper surface of returning charge air compartment (10) is provided with returning charge air distribution plate (11), returning charge air distribution plate (11) is along the downward-sloping layout in direction away from returning charge wind entrance, horizontal by 15 ~ 25 ° of angles, and the returning charge aperture (12) that aperture increases gradually is provided with successively in the side away from returning charge wind entrance, the overall percent opening of returning charge air distribution plate (11) is 3 ~ 7%.
4. soil remediation upgrading device according to claim 1, it is characterized in that, described pyrolysis installation comprises two-way Inner eycle pyrolysis unit, pyrolysis cyclical wind unit and single channel outer circulation gas solid separation unit, wherein, described two-way Inner eycle pyrolysis unit comprises pyrolysis material inlet, the main bed of pyrolysis (29), be symmetricly set in Inner eycle left channel (28) and the Inner eycle right channel (22) of the main bed of pyrolysis (29) both sides, overflow pipe (61), be positioned at the pyrolysis propagation chamber (32) of the main bed of pyrolysis (29) top and be arranged at the pyrolysis leaching plate (33) at propagation chamber (32) top, described Inner eycle left channel (28) is provided with returning charge mouth (15) at the sidewall of pyrolysis installation, described pyrolysis leaching plate (33) offers the leaching hole (34) that aperture is 5 ~ 10mm, percent opening is 15 ~ 20%, described pyrolysis cyclical wind unit comprises the pyrolysis air compartment (23) being arranged at the main bed of pyrolysis (29) below and the pyrolysis cyclical air compartment (25) being symmetricly set in pyrolysis air compartment (23) both sides, the upper surface of described pyrolysis air compartment (23) is pyrolysis air distribution plate (24), percent opening is 3 ~ 7%, the upper surface of described pyrolysis cyclical air compartment (25) is pyrolysis cyclical air distribution plate (26), described pyrolysis cyclical air distribution plate (26) is 38 ~ 45 ° of angles with the wall of pyrolysis installation, described pyrolysis cyclical air distribution plate (26) is provided with multiple directed airduct (27), described directed airduct (27) one end is connected with pyrolysis cyclical air distribution plate (26), the other end points to the main bed of pyrolysis (29), multiple directed airduct (27) ensures that the percent opening of pyrolysis cyclical air distribution plate (26) is 5 ~ 10%, the bottom of described pyrolysis air compartment (23) is provided with pyrolysis air intake, the bottom of described pyrolysis cyclical air compartment (25) is provided with pyrolysis cyclical wind entrance, described single channel outer circulation gas solid separation unit comprise be arranged at two-way Inner eycle pyrolysis unit side external circulation path (21), be arranged at ash resistanting plate (35) above external circulation path and parallel with pyrolysis installation sidewall, be arranged at the material blanking tube (20) below external circulation path and the pyrolysis gas outlet above external circulation path, described pyrolysis unit is also provided with overflow pipe (61), described overflow pipe (61) is arranged in the outside wall surface between pyrolysis material inlet and returning charge mouth (15), described outside wall surface is towards air, Open Side Down for described overflow pipe (61), is 35 ~ 50 ° of angles with described outside wall surface.
5. soil remediation upgrading device according to claim 4, it is characterized in that, described Inner eycle left channel (28) and Inner eycle right channel (22) are surrounded by the sidewall of pyrolysis expansion board (31), pyrolysis dividing plate (30), pyrolysis cyclical air distribution plate (26) and pyrolysis installation respectively, and described pyrolysis expansion board (31) arranges obliquely and is 38 ~ 45 ° of angles with the sidewall of pyrolysis installation.
6. soil remediation upgrading device according to claim 1, it is characterized in that, described gasification installation is two-way Inner eycle gasification installation, comprise two-way Inner eycle gasification unit, gasification cycle wind unit and gas-solid separative element, wherein, described two-way Inner eycle gasification unit comprises gasification materiel entrance, gasify main bed (42), with the circulation passage (43) being symmetricly set in gasification main bed (42) both sides, be positioned at the gasification propagation chamber (46) of the main bed of gasification (42) top and be arranged at the gasification leaching plate (47) at gasification propagation chamber (46) top, described gasification materiel entrance is communicated with circulation passage (43) by tremie pipe (51), described gasification leaching plate (47) offering aperture is 5 ~ 10mm gasification leaching hole (48), percent opening is 15 ~ 20%, described gasification cycle wind unit comprises the gasification air compartment (36) being arranged at the main bed of gasification (42) below and the gasification cycle air compartment (38) being symmetricly set in gasification air compartment (36) both sides, the upper surface of described gasification air compartment (36) is gasification air distribution plate (37), percent opening is 3 ~ 7%, the upper surface of described gasification cycle air compartment (38) is gasification cycle air distribution plate (39), described gasification cycle air distribution plate (39) is 30 ~ 40 ° of angles with the wall of gasification installation, described gasification cycle air distribution plate (39) is provided with multiple loosening airduct (40), described loosening airduct (40) one end is connected with gasification cycle air distribution plate (39), the other end points to the main bed of gasification (42), multiple loosening airduct (40) ensures that the percent opening of gasification cycle air distribution plate (39) is 5 ~ 10%, the sidewall of described gasification cycle air compartment (38) is provided with gasification cycle wind entrance, the bottom of described gasification air compartment (36) is provided with gasification air entrance, the middle part of the main bed of described gasification (42) is provided with the snakelike tube bank of conduction oil (44), described gas solid separation unit is arranged at the side of two-way Inner eycle gasification unit, comprise the outlet of gasification gas, active carbon discharge nozzle (50) and gasification ash resistanting plate (49), described gasification gas outlet is arranged at the upper end of gasification installation outer wall, described active carbon discharge nozzle (50) is arranged at the top of gasification materiel entrance, and described gasification ash resistanting plate (49) is vertically arranged at the top of tremie pipe (51) and parallel with the sidewall of gasification installation.
7. soil remediation upgrading device according to claim 6, it is characterized in that, described circulation passage (43) is surrounded by the sidewall of gasification expansion board (45), gasify dividing plate (41), gasification cycle air distribution plate (39) and gasification installation respectively, and described gasification expansion board (45) arranges obliquely and is 38 ~ 45 ° of angles with the sidewall of gasification installation.
8. soil remediation upgrading device according to claim 1, it is characterized in that, described incinerator is disposed with incineration gases entrance, primary oil heater (53), water heater (56), cross-flow moving bed (58) and exhaust opening, wherein, described gas access comprises pyrolysis gassing entrance, gasification gas entrance and burns air intake, and the two ends of described cross-flow moving bed (58) are respectively equipped with active carbon entrance and active carbon outlet.
9. soil remediation upgrading device according to claim 1, it is characterized in that, described pyrolysis gas burner is disposed with combustion air inlet, secondary oil heater (54) and steam superheater (57), wherein, described combustion air inlet comprises pyrolysis gas entrance and combustion air inlet.
10. soil remediation upgrading device according to claim 1, is characterized in that, described oil circulating pump (52) is connected with incinerator, pyrolysis gas burner and gasification installation successively; Described feed pump (55) is connected with pyrolysis gas burner with incinerator successively; The import of described high temperature circulation blower fan (60) is connected with pyrolysis gas burner, exports and is connected with thermal analysis apparatus; Described air compressor machine (59) is for being respectively pyrolysis installation, gasification installation, incinerator and burner air feed.
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