CN206981415U - Organic polluted soil hot repair complex system - Google Patents
Organic polluted soil hot repair complex system Download PDFInfo
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- CN206981415U CN206981415U CN201720309820.8U CN201720309820U CN206981415U CN 206981415 U CN206981415 U CN 206981415U CN 201720309820 U CN201720309820 U CN 201720309820U CN 206981415 U CN206981415 U CN 206981415U
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Abstract
The utility model provides a kind of organic polluted soil hot repair complex system, including combustion furnace, groove and fume treatment unit；The groove is the groove for the insertion dug out in Polluted area, and one end of groove is smoke inlet, is connected with the flue of combustion furnace, and the other end of groove connects the fume treatment unit.The utility model proposes system, can be with heavy metal pollutant, such as；Chromium, cadmium, mercury, arsenic, lead, copper, zinc, nickel etc., there are stronger thermal decomposition and stabilization；It is to pesticide organic pollution, such as；Insecticide, acaricide, bactericide, herbicide, nematicide and plant growth regulator etc., are effectively desorbed at high temperature；Including petroleum hydrocarbon, halogenated hydrocarbons, polycyclic aromatic hydrocarbon etc. to hydrocarbons pollutant has high pyrolysis effect；Biology, nutrition pollutant can be decomposed completely at high temperature.
Description
Technical field
The utility model belongs to contaminated soil recovery technique field, and in particular to one kind uses mode of heating repairing polluted soil
System.
Background technology
Contaminated site is that the mankind use or stored up harmful substance formation in various activities, to human health and environment
Produce harm or the area of space with potential risk.Contaminated site turns into a global environmental problem.Constitute pair
The mankind and the serious harm of environment.With the fast development and the adjustment of economic structure of China's economy, industrial 〝 three wastes 〞's is not proper
Work as disposal, the unreasonable stacking of mining area mine tailing, place soil pollution caused by oil-gas mining and the resettlement of city industrial area etc. is asked
Topic increasingly highlights, have harmfulness and potential hostile environment region, pollution administration place it is imperative.But the Pollution Field in China
Ground, which is administered, is still in the starting stage, and recovery technique is still immature, fund input wretched insufficiency, and urgent need R＆D costs are low, efficiency high,
The recovery technique of environment-friendly suitable China's national situation.
China's economy is during fast development, especially several recently due to lacking certain cognition degree to environmental protection
Rapid development of economy in 10 years so that the ability to bear of environment reaches capacity, and contaminated site is particularly problematic.China's Pollution Field
Major pollutants have heavy metal (such as chromium, cadmium, mercury, arsenic, lead, copper, zinc, nickel), agricultural chemicals, petroleum hydrocarbon, the organic dirt of persistence in ground
Contaminate thing, volatility or solvent organic pollution and organic-metallic class organic pollution etc..
The long-term plan of ecology country is realized for China, returns one blue mountains and green waters of the mankind, country is in empty gas and water, soil
Deng putting into huge fund in environmental improvement, to improve the living environment of compatriots, special China's recent years mentions pollution administration place
Come in important agenda.At present in contaminated site organic contamination place in the engineering skill that China's quantity is more, treatment cost is high, ripe
Art lacks, and turns into the problem of China's soil remediation.Hot-fixing be important technology in organic contamination site remediation technology it
One, traditional soil restoring technology comes from developed country, because rehabilitation cost is high, tail gas reaches in the practice of China's site remediation
Mark is difficult, manages deficiency etc. is difficult to promote.
Utility model content
Part in view of the shortcomings of the prior art, the purpose of this utility model are to propose a kind of organic polluted soil hot repair
Complex system.
The technical scheme for realizing the utility model purpose is：
A kind of organic polluted soil hot repair complex system, including combustion furnace, groove and fume treatment unit；
The groove is the groove for the insertion dug out in Polluted area, and one end of groove is smoke inlet, with combustion furnace
Flue connection, the other end of groove connects the fume treatment unit.
Further, covered with heat-preserving cover plate, the gap on heat-preserving cover plate and ground is sealed with soil on the top of the groove.
Preferably, the gash depth that Polluted area is dug out is 1~3.5m, and width is 0.5~1m, and length is 10~40m, ditch
The other end of groove connects combustion furnace by flue gas recirculation pipeline.
Wherein, the fume treatment unit includes denitrification apparatus, device for recovering powder, desulfurizer and the leaching being sequentially connected with
Wash chemical-treating facility.
Using the utility model proposes system, carry out the hot restorative procedure of organic polluted soil, be the flue gas with combustion furnace
In Situ Heating organic polluted soil, heavy metal classes pollution, pesticide pollution, hydrocarbon contamination, biology, nutrition class is set to pollute from soil
Middle separation.
Preferably, the temperature of soil heating is 500~800 DEG C.
A kind of in-situ heat restorative procedure of organic polluted soil, it includes step：
(1) groove of insertion is dug out in contaminated site region；
(2) heat-preserving cover plate is covered on groove, groove top all covered, with soil by cover plate clearance seal；
(3) one end of groove is smoke inlet, is connected with the flue of combustion furnace, is passed through organic dirt described in flue gas
Contaminate soil, the other end connection fume treatment unit of groove.
The beneficial effects of the utility model are：
The utility model proposes system, can be with heavy metal pollutant, such as；Chromium, cadmium, mercury, arsenic, lead, copper, zinc, nickel
Deng having stronger thermal decomposition and stabilization；It is to pesticide organic pollution, such as；Insecticide, acaricide, bactericide, weeding
Agent, nematicide and plant growth regulator etc., are effectively desorbed at high temperature；Petroleum hydrocarbon, halo are included to hydrocarbons pollutant
Hydrocarbon, polycyclic aromatic hydrocarbon etc. have high pyrolysis effect；Biology, nutrition pollutant can be decomposed completely at high temperature.
The system can be configured using various heating sources, such as；Straight ignition combustor, hybrid heater, fuel heat naturally, solid
Hybrid Heating etc. (the fuel used combustion system of heating) coordinates engineering operation.
Brief description of the drawings
Fig. 1 is the flow chart of the in-situ heat reparation of organic polluted soil.
Fig. 2 is the system schematic of the in-situ heat reparation of organic polluted soil.
In figure, 1 is combustion furnace, and 2 be groove, and 201 be flue gas recirculation pipeline, and 3 be denitration device, and 4 be dust collector, 5
It is elution chemical processor for desulphurization plant, 6.
Embodiment
Technical solutions of the utility model are further illustrated with specific embodiment below.Those skilled in the art should know
Dawn, embodiment are merely to illustrate the utility model, are not used in limitation the scope of the utility model.
In embodiment, unless otherwise instructed, technological means used is this area conventional technology.
Embodiment 1：
A kind of organic polluted soil hot repair complex system, including combustion furnace 1, groove 2 and fume treatment unit；Wherein, it is described
Fume treatment unit includes denitrification apparatus, device for recovering powder, desulfurizer and the elution chemical-treating facility being sequentially connected with.
Referring to Fig. 2 system schematic, the flue of combustion furnace 1 is connected with the entrance of the one end of groove 2, and multiple grooves are with 90
Degree corner is roundabout, extends the soil heated time；Flue gas after hot rehabilitating soil is discharged from the other end of groove 2, is passed through
Denitration device 3, dust collector 4, desulphurization plant 5, the processing for eluting chemical-treating facility 6, qualified discharge.In the present embodiment,
For denitration device 3 to place the denitrating tower of catalyst, desulphurization plant is wet desulphurization equipment, and the SO in flue gas is removed with limewashx,
Dust collector 4 is sack cleaner, the agent of the elution spray metal extraction of chemical-treating facility 6 (by record parameter adjustment reagent ginseng
Number) solution to be to remove heavy metal.
The groove is the groove for the insertion dug out in Polluted area, and one end of groove is smoke inlet, with combustion furnace
Flue connection, the other end of groove connects the fume treatment unit.The top of the groove covered with heat-preserving cover plate,
The gap on heat-preserving cover plate and ground is sealed with soil.
Before hot repair again is carried out, organic contamination Soils In The Region is detected first, testing result shows the soil of pollution
Earth depth-averaged reaches more than 2 meters, therefore the depth of groove is 3m in the present embodiment.For the lighter region of pollution condition, ditch
The depth of groove can be between 1-2 rice.
The present embodiment is the in-situ heat reparation of organic polluted soil, and operating process is shown in Fig. 1, including step：
(1) groove of insertion is dug out in contaminated site region；The gash depth that contaminated site is dug out is 3m, width
For 1m, length 20m, the other end of groove connects combustion furnace by flue gas recirculation pipeline 201.
(2) heat-preserving cover plate is covered on groove, groove top all covered, with soil by cover plate clearance seal；
(3) one end of groove is smoke inlet, is connected with the flue of combustion furnace, is passed through 500~800 DEG C of flue gas and adds
The heat organic polluted soil, the other end connection fume treatment unit of groove.
Wherein, the fume treatment unit includes denitrification apparatus, device for recovering powder, desulfurizer and the leaching being sequentially connected with
Wash chemical-treating facility.
The system that this method uses is connected referring to Fig. 2, the flue of combustion furnace 1 with the entrance of the one end of groove 2, is penetrated
Groove it is roundabout with 90 degree of corners, extend the soil heated time；The other end of flue gas after hot rehabilitating soil from groove 2
Discharge, by denitration device 3, dust collector 4, desulphurization plant 5, the processing for eluting chemical-treating facility 6, qualified discharge.This
In embodiment, for denitration device 3 to place the denitrating tower of catalyst, desulphurization plant is wet desulphurization equipment, and cigarette is removed with limewash
SO in gasx, dust collector 4 is sack cleaner, elution chemical-treating facility 6 sprays metal extraction agent and (presses record parameter
Adjustment reagent parameter) solution to be to remove heavy metal.
The flue gas recirculation pipeline 201 connected by the other end of groove, is mixed with heat smoke, the flue gas that combustion furnace is exported
Temperature control is 700 DEG C.The flue-gas temperature discharged after processing is 80~90 DEG C.
Embodiment above is only that specific embodiment of the present utility model is described, not to the utility model
Scope be defined, those skilled in the art can also do numerous modifications and variations on the basis of existing technology, not depart from
On the premise of the utility model design spirit, what this area ordinary skill technical staff made to the technical solution of the utility model
All variations and modifications, it all should fall into the protection domain that claims of the present utility model determine.
Claims (4)
1. a kind of organic polluted soil hot repair complex system, it is characterised in that including combustion furnace, groove and fume treatment unit；
The groove is the groove of insertion dug out in Polluted area, and one end of groove is smoke inlet, the cigarette with combustion furnace
Feed channel connects, and the other end of groove connects the fume treatment unit.
2. organic polluted soil hot repair complex system according to claim 1, it is characterised in that the top covering of the groove
There is a heat-preserving cover plate, the gap on heat-preserving cover plate and ground is sealed with soil.
3. organic polluted soil hot repair complex system according to claim 1, it is characterised in that the groove that Polluted area is dug out
Depth is 1~3.5m, and width is 0.5~1m, and length is 10~40m, and the other end of groove is connected by flue gas recirculation pipeline to be fired
Burn stove.
4. the organic polluted soil hot repair complex system according to any one of claims 1 to 3, it is characterised in that the flue gas
Processing unit includes desulfurizer, device for recovering powder, denitrification apparatus and the elution chemical-treating facility being sequentially connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720309820.8U CN206981415U (en) | 2017-03-27 | 2017-03-27 | Organic polluted soil hot repair complex system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720309820.8U CN206981415U (en) | 2017-03-27 | 2017-03-27 | Organic polluted soil hot repair complex system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206981415U true CN206981415U (en) | 2018-02-09 |
Family
ID=61422311
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720309820.8U Active CN206981415U (en) | 2017-03-27 | 2017-03-27 | Organic polluted soil hot repair complex system |
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| CN (1) | CN206981415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918640A (en) * | 2019-09-20 | 2020-03-27 | 河北工业大学 | Method for repairing halohydrocarbon contaminated soil by using industrial iron powder |
-
2017
- 2017-03-27 CN CN201720309820.8U patent/CN206981415U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918640A (en) * | 2019-09-20 | 2020-03-27 | 河北工业大学 | Method for repairing halohydrocarbon contaminated soil by using industrial iron powder |
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