CN209318421U - Soil heterotopic prosthetic device based on pyrolysis desorption - Google Patents
Soil heterotopic prosthetic device based on pyrolysis desorption Download PDFInfo
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- CN209318421U CN209318421U CN201821997389.1U CN201821997389U CN209318421U CN 209318421 U CN209318421 U CN 209318421U CN 201821997389 U CN201821997389 U CN 201821997389U CN 209318421 U CN209318421 U CN 209318421U
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- closed greenhouse
- pyrolysis desorption
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- tail gas
- ventilation shaft
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Abstract
The utility model belongs to the recovery technique field of contaminated soil, in particular to a kind of soil heterotopic prosthetic device based on pyrolysis desorption.The soil heterotopic prosthetic device based on pyrolysis desorption includes closed greenhouse, pyrolysis desorption unit, being pyrolyzed desorption unit includes pyrolysis desorption furnace, combustion chamber, tail gas treating unit, it is connected between closed greenhouse and the combustion chamber of pyrolysis desorption unit by the first ventilation shaft, high pressure blower is provided on the first ventilation shaft for the air in closed greenhouse to be introduced to the combustion chamber of pyrolysis desorption unit；It is provided with the second ventilation shaft between tail gas treating unit and closed greenhouse, the second ventilation shaft is for will treated that tail gas imports closed greenhouse by tail gas treating unit.The utility model saves equipment investment while improving the vent gas treatment efficiency of closed greenhouse.
Description
Technical field
The invention belongs to the recovery technique field of contaminated soil, in particular to a kind of soil heterotopic based on pyrolysis desorption is repaired
Apparatus for coating.
Background technique
Soil pollution is the significant threat that the sustainable health of land resource utilizes." the soil that State Council prints and distributes in May, 2016
Prevention and cure of pollution action plan " it proposes: the year two thousand twenty is arrived, national soil pollution aggravates trend and tentatively contained, soil environment quality
It is overall to keep stablizing.In numerous soil restoring technologies, pyrolysis desorption technology is an emerging efficient technology.Thermal desorption skill
Art is because its process range is wide, repairing efficiency is short, increasingly by the favor of technical staff.
Pyrolysis desorption is used as a kind of soil heterotopic processing mode, soil is dug, is crushed etc. processes can generate it is more
Tail Gas.Entire treatment process can be limited in a relatively closed space and carry out by the prior art.Such as application No. is
201710526448.0 innovation and creation disclosed in a kind of organic polluted soil chemical oxidation repair system and its method, including steel
The closed greenhouse of structure, sieving approach device, metering transmission device, chemicals dosing plant, priming apparatus, to be stirred to react device, exhaust gas net
Makeup sets, air-introduced machine, PLC control system, and sieving approach device, metering transmission device, chemicals dosing plant, priming apparatus, stirring are anti-
Device is answered to be separately positioned in the closed greenhouse of steel construction, it is closed that waste gas purification apparatus and air-introduced machine are separately positioned on the steel construction
The outside of greenhouse.Entire processing system will not generate secondary pollution to environment in the closed greenhouse of steel construction.
A kind of for another example innoxious reparation of organic polluted soil disclosed in the innovation and creation application No. is 201810607122.5
Method.It is the following steps are included: the organic polluted soil dug out is transported to closed big by (1) in organic contamination place excavation pit
In canopy, oxidant is added in organic polluted soil and catalyst is thoroughly mixed uniformly, is stacked 24-28h, is aoxidized
Restore organic polluted soil；(2) the redox organic polluted soil through 150-200 DEG C heat treatment 30-50 minutes, obtain heat
Handle organic polluted soil.The program is also required to be provided with exhaust outlet on closed greenhouse, and exhaust-gas treatment dress is connected outside exhaust outlet
It sets.
According to existing engineering practice and document analysis, in soil remediation, when using closed greenhouse, closed greenhouse will necessarily
Configure individual emission-control equipment.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of soil heterotopic based on pyrolysis desorption
Prosthetic device saves equipment investment while improving the vent gas treatment efficiency of closed greenhouse.
To achieve the goals above, the technical solution of the utility model is as follows:
Based on the soil heterotopic prosthetic device of pyrolysis desorption, including closed greenhouse, pyrolysis desorption unit, it is pyrolyzed desorption unit
Furnace, combustion chamber, tail gas treating unit is desorbed including pyrolysis, by the between the closed greenhouse and the combustion chamber for being pyrolyzed desorption unit
One ventilation shaft is connected, and high pressure blower is provided on the first ventilation shaft for the air in closed greenhouse to be introduced pyrolysis desorption
The combustion chamber of unit.
As an improvement, the second ventilation shaft is provided between the tail gas treating unit and closed greenhouse, the second ventilation duct
Road will be for that will import closed greenhouse by tail gas treating unit treated tail gas.
As a further improvement, the tail gas treating unit successively includes air preheater, chilling tower, active carbon injection
Device, bag filter, the first ventilation shaft between closed greenhouse and the combustion chamber for being pyrolyzed desorption unit pass through air preheater.
The inventive concept of the utility model is:
The exhaust treatment system for cancelling closed greenhouse, using the air in closed greenhouse as the combustion air of pyrolysis desorption unit
It uses；Closed greenhouse will be imported by tail gas treating unit treated tail gas simultaneously, and make contaminated gas only closed big
It is recycled between canopy and pyrolysis desorption unit, to reduce the influence to ambient enviroment.
The beneficial effects of the utility model are:
(1) in the prior art, the tail gas of closed greenhouse is frequently with the mode of activated carbon adsorption, and activated carbon adsorption is that have one
Fixed selectivity, different activities charcoal are different to the adsorption saturation degree of different pollutants, i.e., adsorption rate differs greatly, therefore simple use
Active carbon goes absorption to be difficult to the thoroughly absorption simultaneously by various pollutants, and the consumption of active carbon is very big.And the present invention will be close
The air closed in greenhouse is used as the combustion air of pyrolysis desorption unit, and the pollutant generated in closed greenhouse is at 850-1100 DEG C
At a temperature of handled through burning, handle it is more thorough；
(2) pyrolysis desorption process needs a large amount of combustion air air, and the oxygen content of waste gas that generates in closed greenhouse and empty
Gas oxygen content is not much different, and dust content is moderate to comply fully with the condition for doing pyrolysis desorption combustion air, therefore, at the two collaboration
Reason, reaches emission reduction effect；
(3) air preheater plays the role of as cooling high-temperature fume, at the same to will enter combustion chamber by closed big
The exhaust gas that canopy comes out is preheated, and the pollutant be conducive in exhaust gas more fully burns in combustion chamber；
(4) closed greenhouse will be imported by tail gas treating unit treated tail gas, the residual temperature of tail gas can accelerate soil
Drying, while make contaminated gas only closed greenhouse and pyrolysis desorption unit between recycle.It is of course also possible to will pass through
Tail gas treating unit treated tail gas direct emission.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, closed greenhouse；2, pyrolysis desorption furnace；21, feeding inlet；22, discharge port；23, pyrolysis gas outlet；24, cigarette
Gas outlet；3, combustion chamber；41, air preheater；42, chilling tower；43, activated carbon eductor；44, bag filter；51,
One ventilation shaft；52, the second ventilation shaft；53, third venting pipeline；6, high pressure blower.
Specific embodiment
Embodiment 1
Soil heterotopic prosthetic device based on pyrolysis desorption is as shown in Figure 1, include closed greenhouse 1, pyrolysis desorption unit, heat
Solving desorption unit includes pyrolysis desorption furnace 2, combustion chamber 3, tail gas treating unit.
Closed greenhouse 1 is the prior art, can be used that application No. is samples disclosed in the innovation and creation of 201810460389 .6
Formula, it is also possible to which existing workshop through thin colored steel edge sealing, PVDF/PVC film be closed etc. reequip to obtain by modes.It is provided in closed greenhouse 1
Rotary screen, the mesh size of rotary screen are 4cm, power of motor 7.5kw.Soil block less than 4cm is delivered to as undersize material
Feed bin send to hammer mill greater than 4cm on-the-sieve material and carries out break process.
Pyrolysis desorption furnace 2 is equipped with feeding inlet 21, discharge port 22, pyrolysis gas outlet 23, exhanst gas outlet 24.Closed greenhouse 1
It is connected between the combustion chamber 2 of pyrolysis desorption unit by the first ventilation shaft 51, is provided with high-pressure blast on the first ventilation shaft 51
Machine 6 is used to introduce in closed greenhouse 1 air the combustion chamber 3 of pyrolysis desorption unit, and high pressure blower 6 makes place in closed greenhouse 1
In negative pressure state to reduce the gas leak in closed greenhouse 1.The power of motor of high pressure blower 6 is generally 45Kw or more.Tail
Gas disposal unit successively includes air preheater 41, chilling tower 42, activated carbon eductor 43, bag filter 44, closed greenhouse 1
The first ventilation shaft 51 between the combustion chamber 3 of pyrolysis desorption unit passes through air preheater 41.Tail gas treating unit with it is close
It closes between greenhouse 1 and is provided with the second ventilation shaft 52, treated for that will pass through tail gas treating unit for the second ventilation shaft 52
Tail gas imports closed greenhouse 1.Certainly, by tail gas treating unit, treated that tail gas can also be discharged into ambient enviroment.Heat
It vents one's spleen and is provided with third venting pipeline 53 between outlet 23 and the combustion chamber 3 for being pyrolyzed desorption unit, third venting pipeline 53 is used for
The combustion chamber 3 that the pyrolysis gas that pyrolysis desorption generates imports pyrolysis desorption unit is burnt.
Claims (3)
1. based on the soil heterotopic prosthetic device of pyrolysis desorption, including closed greenhouse, pyrolysis desorption unit, it is pyrolyzed desorption unit packet
Include pyrolysis desorption furnace, combustion chamber, tail gas treating unit, it is characterised in that: the burning of the closed greenhouse and pyrolysis desorption unit
It is connected between room by the first ventilation shaft, high pressure blower is provided on the first ventilation shaft for drawing the air in closed greenhouse
Enter to be pyrolyzed the combustion chamber of desorption unit.
2. the soil heterotopic prosthetic device according to claim 1 based on pyrolysis desorption, it is characterised in that: at the tail gas
The second ventilation shaft is provided between reason unit and closed greenhouse, the second ventilation shaft by tail gas treating unit for that will handle
Tail gas afterwards imports closed greenhouse.
3. the soil heterotopic prosthetic device according to claim 1 based on pyrolysis desorption, it is characterised in that: at the tail gas
Reason unit successively includes air preheater, chilling tower, activated carbon eductor, bag filter, and closed greenhouse and pyrolysis desorption are single
The first ventilation shaft between the combustion chamber of member passes through air preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821997389.1U CN209318421U (en) | 2018-11-30 | 2018-11-30 | Soil heterotopic prosthetic device based on pyrolysis desorption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821997389.1U CN209318421U (en) | 2018-11-30 | 2018-11-30 | Soil heterotopic prosthetic device based on pyrolysis desorption |
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| Publication Number | Publication Date |
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| CN209318421U true CN209318421U (en) | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821997389.1U Active CN209318421U (en) | 2018-11-30 | 2018-11-30 | Soil heterotopic prosthetic device based on pyrolysis desorption |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109433814A (en) * | 2018-11-30 | 2019-03-08 | 浙江宜可欧环保科技有限公司 | Soil heterotopic restorative procedure and its device based on pyrolysis desorption |
| CN112570438A (en) * | 2020-11-26 | 2021-03-30 | 山东冽泉环保工程咨询有限公司 | Contaminated soil heat treatment device and method |
-
2018
- 2018-11-30 CN CN201821997389.1U patent/CN209318421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109433814A (en) * | 2018-11-30 | 2019-03-08 | 浙江宜可欧环保科技有限公司 | Soil heterotopic restorative procedure and its device based on pyrolysis desorption |
| CN112570438A (en) * | 2020-11-26 | 2021-03-30 | 山东冽泉环保工程咨询有限公司 | Contaminated soil heat treatment device and method |
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