CN205869060U - Thermal desorption integration treatment device - Google Patents
Thermal desorption integration treatment device Download PDFInfo
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- CN205869060U CN205869060U CN201620499682.XU CN201620499682U CN205869060U CN 205869060 U CN205869060 U CN 205869060U CN 201620499682 U CN201620499682 U CN 201620499682U CN 205869060 U CN205869060 U CN 205869060U
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Abstract
The utility model discloses a thermal desorption integration treatment device, including screening plant, conveyer, spray set, heat treatment unit, filter equipment, condensing equipment, enrichment device, PLC control system, establish ties in proper order screening plant, conveyer, heat treatment unit, spray set are located the conveyer top, and heat treatment unit's tail gas export is connected with filter equipment, condensing equipment, enrichment device through the pipeline in proper order, heat treatment unit's waste residue export is connected with waste residue conveyer, and waste residue conveying dress divide into two the tunnel, conveys all the way to the waste residue collecting pit, and convey to heat treatment unit on another way, PLC control system carries out real -time supervision and control to each device of the aforesaid.
Description
Technical field
This utility model relates to a kind of dystopy contaminated soil remediation technology, is specifically related to one and makes soil by high-temperature heating
In desorption of contaminants out, the device separated and recovered by tail gas enriching apparatus.
Background technology
Soil is positioned at the center of natural environment, is the material bases depended on for existence of the mankind, is in connection natural environment
The inorganic world and the key link of bios, biosphere and non-biosphere.Its basis as agricultural production and the weight of environmental key-element
Want ingredient, carry the pollutant from each side of about 90 % in environment.In recent years, modern industrial society's day is increasingly
While reaching, entering the pollutant in soil the most increasing, the reparation of contaminated soil has become Present Domestic outer shroud safeguarding the Graduate Record Examination and has studied carefully
Focus.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of close-coupled processing dress of thermal desorption
Put.
For reaching above-mentioned purpose, this utility model is to be realized by following technical scheme.
A kind of thermal desorption integrated treatment unit, including screening plant, transporter, spray equipment, thermal treatment unit, mistake
Filter device, condensing unit, enriching apparatus, PLC control system；It is sequentially connected in series screening plant, transporter, thermal treatment unit, spray
Shower device is positioned at above transporter, the offgas outlet of thermal treatment unit by pipeline successively with defecator, condensing unit, richness
Acquisition means connects；The waste residue outlet of thermal treatment unit is connected with waste residue transporter, and waste residue transmits dress and is divided into two-way, and a road is transmitted
To waste residue collecting pit, another road is sent to thermal treatment unit；Above-mentioned each device is monitored and controls by PLC control system in real time
System.
The most described thermal treatment unit includes the outlet of charging aperture, cylinder, actuating device, heating element heater, waste residue, tail gas
Outlet；Charging aperture import is positioned at transporter end, and charging aperture outlet extends to cylinder import, and heating element heater is positioned under cylinder
Portion, actuating device drives rollers roll, waste residue outlet to be positioned at drum outlet, and offgas outlet is positioned at above cylinder import；Cylinder enters
Mouth, drum outlet are provided with obturator.
The inclined shape of the most described cylinder, cylinder import is higher than cylinder import, or cylinder is horizontal, drums inside
Spiral guiding plate is installed.
The most described defecator uses sack cleaner, removes the dust more than 0.11 mm.
The most described PLC control system is to temperature, pressure in charging, air inlet, the parameter of electrical equipment, thermal treatment unit
The parameters such as power, rotating speed, residence time of material are monitored and controlled in real time.
Thermal desorption recovery technique passes through directly or indirectly heat exchange, pollution medium and contained organic pollution thereof is added
Heat is to enough temperature, so that the process that organic pollution is volatilized from pollution medium or separates.Thermal desorption system is
Pollutant become the physical separating process of another phase from an inversion of phases, and thermal desorption is not to burn, because repair process does not go out
The now destruction to organic pollution, but can have selection by the temperature and residence time of material controlling thermal desorption system
Be pollutant volatilized rather than aoxidized, these organic pollutions of degrading.
Additionally provide a kind of thermal desorption integral treatment method further, comprise the following steps:
(1) granule in contaminated soil is removed more than granules such as the rubble of 2cm, concrete；
(2) step (1) process after stain soil is mixed with surfactant；
(3) the contaminated soil heating that will process through step (2)；
(4) step (3) is heated gas filtration, the jet condensation evaporated, collects condensed fluid, condensed fluid has been passed through
Machine solvent, dissolves the Organic substance in condensed fluid, exhaust emissions.
In the most described step (2), surfactant is cetyl trimethylammonium bromide, alkyl phenol polyvinylether
OP-15, sodium chloride 1:3～10:6 in mass ratio～30 is configured to confection.
In the most described step (2), contaminated soil mixes with surfactant 100:2 in mass ratio～15.
In the most described step (3), heating-up temperature is 100 ~ 350 DEG C, and heat time heating time is 10 ~ 40 minutes, material stop
Time is 40～60 minutes.
In the most described step (4), organic solvent uses the organic solvent such as diesel oil or kerosene that volatility is relatively low.
This method uses the mode adding surfactant in contaminated soil, and in the thermal treatment unit of closed
Carry out pressurized, heated, make organic pollution that boiling point is higher can the most relatively low at a temperature of evaporate, and whole process is all
Have under PLC control system and control, the real-time processing procedure that contaminated soil is monitored and controlled.So can locate fast and efficiently
Reason has the place being mixed with organic pollutants pollution.
Beneficial effect: compared with prior art, the utility model has the advantage of:
1) have employed novel surfactant formula, the airtight intensification of negative pressure, the organic pollution making chloride class can be
Desorb under lower temperature, while reducing energy consumption, decrease the probability that two English generate；
2) the novel mixed surfactant of interpolation is used can to strengthen the energy of desorption of organic pollution in interstices of soil
Power；
3) use PLC integral control system, can be monitored protecting to the parameter processed in work in each time period
Deposit, and in time technological parameter can be adjusted according to these data, add operability；
4) use tail gas enrichment and separation device, pollutant are carried out enriching and recovering, improves the recycling performance of resource, fall
The low probability causing secondary pollution.
Accompanying drawing explanation
The thermal desorption performance of organic pollution under Fig. 1 difference thermal desorption temperature；
The thermal desorption performance of organic pollution under Fig. 2 difference time of staying；
Fig. 3 thermal desorption integrated processing technique flow chart；
Fig. 4 thermal treatment unit structural representation；
Wherein 1. charging aperture, 2. cylinder, 3. gear drive, 4. heating element heater, 5. waste residue outlet, 6. tail gas
Outlet.
Detailed description of the invention
Below in conjunction with example, the utility model is described in further detail.
Pollution by pesticides place, Jiangsu, in soil, major pollutants are Polychlorinated biphenyls, polycyclic aromatic hydrocarbon, chlorinatedorganic.Warp
Site investigation finds with risk assessment, and on-site soil is by the organic contamination based on VOCs and SVOCs, local pollution
The degree of depth is up to 6 m below earth's surface, and soil property is based on silty clay.
A kind of thermal desorption integrated treatment unit, including vibrosieve, feed belt, spray equipment, thermal treatment unit, belt
Cleaner unit, spray condenser, enriching apparatus, PLC control system；It is sequentially connected in series vibrosieve, feed belt, thermal treatment unit, spray
Shower device is positioned at above feed belt, and the offgas outlet 6 of thermal treatment unit is condensed with belt cleaner unit, spray successively by pipeline
Device, enriching apparatus connect；The waste residue outlet 5 of thermal treatment unit is connected with waste residue feed belt, and waste residue transmits dress and is divided into two-way, and one
Road transfers to waste residue collecting pit, and another road is sent to thermal treatment unit；Above-mentioned each device is monitored by PLC control system in real time
And control.
Thermal treatment unit includes that charging aperture 1, cylinder 2, gear drive 3, heating element heater 4, waste residue outlet 5, tail gas go out
Mouth 6；Charging aperture 1 import is positioned at transporter end, and charging aperture 1 outlet extends to cylinder 2 import, and heating element heater 4 is positioned at cylinder 2
Bottom, gear drive 3 drives cylinder 2 to roll, and waste residue outlet 5 is positioned at cylinder 2 and exports, and offgas outlet 6 is positioned at cylinder 2 import
Top；Cylinder import, drum outlet are provided with obturator.The inclined shape of cylinder 2, cylinder 2 import is higher than cylinder 2 import, or rolling
Cylinder 2 is horizontal, and cylinder 2 is internally installed spiral guiding plate.
Spray condenser is mainly made up of drainer, pressure-relief valve, water injector, captation, surge tank and maintenance door.
Organic exhaust gas entrance drainer entered water injector condensation and together entered captation with water.
Embodiment 1
Pretreatment contaminated soil, entered granule in vibrosieve equipment removal soil and was more than the rubble of 2cm, concrete etc.
Grain；Cetyl trimethylammonium bromide, alkyl phenol polyvinylether OP-15, sodium chloride 1:6:18 in mass ratio are configured to mixing
Medicament；Soil through screening passes through belt transmission, is positioned at the spray thrower spray confection above conveyer belt, is mixed with medicament
Soil be sent to thermal treatment unit, thermal treatment unit carries out closed processes, and by PLC control system to charging, air inlet, electrically
In the parameter of equipment, thermal treatment unit, the parameter such as temperature, pressure, rotating speed, residence time of material is monitored and controlled in real time, fortune
During row cylinder import, drum outlet is airtight, by offgas outlet evacuation, heating-up temperature is 300 DEG C, and the soil time of staying is 30
Minute, pressure is-200～-50Pa, and cylinder 2 rotating speed is 3.8～4.1r/min, after completing the process of a collection of contaminated soil, opens rolling
Cylinder 2 outlet is by soil from waste residue outlet 5 eliminating, PLC control system detection the soil after processing is the most up to standard, if up to standard by giving up
One tunnel of slag transporter is sent to waste residue collecting pit, if the most up to standard being turned by another road of waste residue transporter is sent to heat treatment
Unit processes again.The organic gas evaporated enters sack cleaner through piping, removes the dust more than 0.11 mm,
The most again by condensate recycling device, the liquid through the generation of condensing unit enters tail gas enriching apparatus, tail gas enriching apparatus
In diesel oil dissolve the Organic substance in condensed fluid according to the similar principle mixed.VOCs clearance in contaminated soil is 85%,
SVOCs clearance is 92%.
Embodiment 2
Substantially the same manner as Example 1 except that cetyl trimethylammonium bromide, the poly-second of alkyl phenol in confection
Alkene ether OP-15, the mass ratio of sodium chloride are 1:3:6, and in thermal treatment unit, heating-up temperature is 100 DEG C, and the time of staying is 10 minutes,
Pressure is-200～-50Pa, and cylinder 2 rotating speed is 3.8～4.1r/min, uses kerosene in tail gas enriching apparatus.In contaminated soil
VOCs clearance be 18%, SVOCs clearance is 38%.
Embodiment 3
Substantially the same manner as Example 1 except that cetyl trimethylammonium bromide, the poly-second of alkyl phenol in confection
Alkene ether OP-15, the mass ratio of sodium chloride are 1:10:30, and in thermal treatment unit, heating-up temperature is 350 DEG C, and the time of staying is 40
Minute, pressure is-200～-50Pa, and cylinder 2 rotating speed is 3.8～4.1r/min, uses kerosene in tail gas enriching apparatus.Polluted Soil
VOCs clearance in earth is 94%, and SVOCs clearance is 98%.
This utility model is illustrated according to above-described embodiment, it will be appreciated that above-described embodiment limits the most in any form
Determine this utility model, the technical scheme that all employing equivalents or equivalent transformation mode are obtained, all fall within of the present utility model
Within protection domain.
Claims (5)
1. a thermal desorption integrated treatment unit, it is characterised in that include screening plant, transporter, spray equipment, Re Chu
Reason unit, defecator, condensing unit, enriching apparatus, PLC control system；It is sequentially connected in series screening plant, transporter, Re Chu
Reason unit, spray equipment is positioned at above transporter, the offgas outlet of thermal treatment unit by pipeline successively with defecator, cold
Solidifying device, enriching apparatus connect；The waste residue outlet of thermal treatment unit is connected with waste residue transporter, and waste residue transporter is divided into two
Road, a road is sent to waste residue collecting pit, and another road is sent to thermal treatment unit；PLC control system carries out reality to above-mentioned each device
Time monitor and control.
A kind of thermal desorption integrated treatment unit the most according to claim 1, it is characterised in that described thermal treatment unit bag
Include charging aperture, cylinder, actuating device, heating element heater, waste residue outlet, offgas outlet；Charging aperture import is positioned at transporter end,
Charging aperture outlet extends to cylinder import, and heating element heater is positioned at cylinder bottom, and actuating device drives rollers roll, waste residue outlet position
In drum outlet, offgas outlet is positioned at above cylinder import；Cylinder import, drum outlet are provided with obturator.
A kind of thermal desorption integrated treatment unit the most according to claim 2, it is characterised in that described cylinder is inclined
Shape, cylinder import is higher than cylinder import, or cylinder is horizontal, and drums inside is provided with spiral guiding plate.
A kind of thermal desorption integrated treatment unit the most according to claim 1, it is characterised in that described defecator uses
Sack cleaner, removes the dust more than 0.11 mm.
A kind of thermal desorption integrated treatment unit the most according to claim 1, it is characterised in that described PLC control system
Temperature, pressure, rotating speed, the parameter of residence time of material in charging, air inlet, the parameter of electrical equipment and thermal treatment unit are carried out
It is monitored and controlled in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620499682.XU CN205869060U (en) | 2016-05-26 | 2016-05-26 | Thermal desorption integration treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620499682.XU CN205869060U (en) | 2016-05-26 | 2016-05-26 | Thermal desorption integration treatment device |
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| CN205869060U true CN205869060U (en) | 2017-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855284A (en) * | 2016-05-26 | 2016-08-17 | 江苏新光环保工程有限公司 | Thermal desorption integrated treatment method and device |
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2016
- 2016-05-26 CN CN201620499682.XU patent/CN205869060U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855284A (en) * | 2016-05-26 | 2016-08-17 | 江苏新光环保工程有限公司 | Thermal desorption integrated treatment method and device |
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