CN205926587U - Mercurous pollution treatment system is restoreed to high -efficient thermal desorption - Google Patents
Mercurous pollution treatment system is restoreed to high -efficient thermal desorption Download PDFInfo
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- CN205926587U CN205926587U CN201620832662.XU CN201620832662U CN205926587U CN 205926587 U CN205926587 U CN 205926587U CN 201620832662 U CN201620832662 U CN 201620832662U CN 205926587 U CN205926587 U CN 205926587U
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Abstract
The utility model relates to a mercurous pollution treatment system is restoreed to high -efficient thermal desorption. Processing unit, feeding unit, thermal desorption unit, dust removal unit, cooling condensation unit, tail gas washing unit, gas -liquid separation unit, water processing unit, tail gas adsorb processing emission unit and cooling ejection of compact unit in advance including the granulation, granulation processing unit in advance links to each other with feeding unit, feeding unit, it all links to each other with the thermal desorption unit to cool off an appearance unit and dust removal unit, processing unit is continuous in advance with cool down condensation unit and granulation respectively for the dust removal unit, cooling condensation unit links to each other with the tail gas washing unit, the tail gas washing unit links to each other with the gas -liquid separation unit, the gas -liquid separation unit adsorbs processing emission unit with tail gas and links to each other, cooling condensation unit, tail gas washing unit and gas -liquid separation unit link to each other with water treatment unit respectively, simultaneously water treatment unit with cool off an appearance unit and link to each other. The utility model discloses have thermal efficiency height, removal rate of pollutant height, few, the low characteristic of energy consumption of exhaust dustiness.
Description
Technical field
The utility model belongs to technical field of soil remediation in field of environment engineering technology and in particular to a kind of High Efficiency Thermal
Desorption repairs mercurous pollution treatment system, and this system is applied to the reparation of mercurous contaminated soil, waste.
Background technology
China's soil environment situation allows of no optimist, and some areas soil pollution is heavier, and industry and mining are discarded ground soil environment and asked
Topic is more prominent.According to data rough estimates, China is maximum mercury producing country and country of consumption, and coal-fired, mercury ore is smelted, had coloured gold
The mercury belonging to the discharges such as smelting and chlorine industry electrolysis in mercury cell technique pollutes to Soil Surrounding and underground water, exists larger
Environmental pollution hidden danger, needs repairing and treating badly.
Thermal desorption technology is one of main treatment technology of mercurous contaminated soil, waste, and this technology is to be divided using physics
From means by the pollutant removal in contaminated soil/waste, steamed by the saturation improving the soil moisture and then increase pollution components
Air pressure, accelerates desorption and the separation of pollution components, simultaneously to the pollution components after separation by modes such as absorption or chemical reaction
Carry out subsequent treatment.Thermal desorption process is the physics that in soil/waste, pollution components are proceeded to gas phase by solid phase or liquid phase heat transfer
Process, thermal desorption unit is typically using air, combustion product gases, high-temperature steam, inert gas etc. as heat transferring medium.Thermal desorption
Technology is applied to the pollutants such as all kinds of volatile organic matters, semi-volatile organic matter and mercury.
At present, the thermal desorption repair system of domestic-developed is for volatility and semi-volatile organic matter mostly, due to changing
Learn property difference larger, these thermal desorption equipment applicabilities need to consider.And be directed to mercurous and compound contaminated soil heat and take off
Attached technology has relevant report, such as the CN204052358U patent of the application such as Kang Zhaoyu, using heating response device to mercurous Polluted Soil
Earth is repaired；The CN104289513A patent of the applications such as Hu Qing, using modularization thermal desorption processing meanss and method；The Shens such as Shen Xiaojiang
CN105057337A patent please, using efficiently indirect thermal desorption device；These devices have that tail gas yield is big, heat transfer efficiency
Low problem.Additionally, the recycling recovery process of mercury and desorption tail gas handling process still need to perfect further, the secondary dirt of control
Dye.
Content of the invention
The purpose of this utility model is to provide a kind of efficient thermal desorption reparation to contain for the deficiencies in the prior art
Mercury pollution processing system, this system can efficiently repair mercury contaminated soil, can achieve that multistage temperature controls, mercury is comprehensive in implementation process
Close and utilize, control exhaust emissions amount, the purpose of tail gas qualified discharge.
For achieving the above object, the utility model provides its technical problem of solution employed technical scheme comprise that：A kind of efficient
Thermal desorption repairs mercurous pollution treatment system, including granulation pretreatment unit, feed unit, thermal desorption unit, dust removing units, fall
Warm condensing unit, washing tail gas unit, gas-liquid separation unit, unit for treating water, tail gas adsorption process exhaust unit and cool down out
Material unit；Described granulation pretreatment unit includes screening and granulating system；Described granulation pretreatment unit is connected with feed unit,
Feed unit, cooling discharging unit are all connected with thermal desorption unit with dust removing units, dust removing units respectively with cooling condensing unit
Be connected with granulation pretreatment unit, cooling condensing unit is connected with washing tail gas unit, washing tail gas unit and gas-liquid separation list
Unit is connected, and gas-liquid separation unit processes exhaust unit with tail gas adsorption and is connected, cooling condensing unit, washing tail gas unit and gas-liquid
Separative element is connected with unit for treating water respectively, and unit for treating water is connected with cooling discharging unit simultaneously.
Described feed unit includes belt conveyer scale, belt conveyor, and described belt conveyor leads to thermal desorption unit.
Described thermal desorption unit includes rotary kiln, fixed bed heating furnace, and described fixed bed heating furnace is in the cylinder of rotary kiln
Lower section；Described rotary kiln upper end is connected with dust removing units by high-temperature pipe, and cooling discharging unit is led in lower end.
Described cooling discharging unit includes revolving drum, belt conveyor, adds spray thrower in described revolving drum, and revolving drum leads to
To belt conveyor, belt conveyor leads to clean soil stockyard.
Described dust removing units are through type sack cleaner；It is cold that dust removing units upper end gas is delivered to cooling through high-temperature pipe
Solidifying unit, dust removing units lower end is connected with granulation pretreatment unit.
Described cooling condensing unit includes heat exchanger, condenser, and after dust removing units dedusting, tail gas is connected with heat exchanger,
, all using tubular heat exchanger, described condenser is indirect water-cooling condenser, described heat exchanger for described heat exchanger and condenser
Upper end lead to described condenser, described washing tail gas unit, described heat exchanger, condenser are led in the upper end of described condenser
Lower end each lead to unit for treating water.
Described washing tail gas unit is made up of spray column, and the upper end gas vent of spray column leads to gas-liquid separation unit, under
End liquid outlet is connected with unit for treating water.
Described gas-liquid separation unit is gas-liquid separator, and tail gas treating unit, gas are led in the upper end of described gas-liquid separator
Unit for treating water is led in the lower end of liquid/gas separator.
Described unit for treating water includes regulating reservoir, coagulative precipitation tank, depositing reservoir, charcoal absorption processor and rewetting water
Case；Cooling condensing unit, washing tail gas unit and gas-liquid separation unit by pipeline be sequentially connected regulating reservoir, coagulative precipitation tank,
Depositing reservoir, charcoal absorption processor, rewetting water tank is connected with cooling discharging unit by pipeline.
Described vent gas treatment exhaust unit includes activated carbon adsorber, air-introduced machine；Activated carbon adsorber, air-introduced machine lead to successively
Piping connects, and activated carbon adsorber is connected with gas-liquid separation unit.
A kind of efficient thermal desorption repairs mercurous pollution treatment method, and its step includes：
Step a：Pending soil or waste pass through screening, carry out granulating pre- place using binding agent in granulating system
Reason, after process, soil or waste particle diameter are 5 ~ 30 mm, lead to feed unit by belt conveyor；
Step b：Granulate after pretreated soil or waste weigh through belt conveyer scale in feed unit and uniformly fall into belt
On conveyer, thermal desorption unit is led to by belt conveyor；
Step c：The heat smoke Direct Contact Heating that contaminated soil/waste is produced with fixed bed heater in rotary kiln,
Soil in kiln or waste are heat-treated 20 ~ 50 minutes at a temperature of 300 ~ 600 DEG C, make to wave from soil/waste containing mercury contaminants
Issue；
Step d：The soil being heated by rotary kiln/waste enters cooling discharging unit, humidifies fall through spray thrower
Soil after temperature or waste lead to belt conveyor, are transported to clean soil stockyard through belt conveyor.
Further, a kind of efficient thermal desorption repairs mercurous pollution treatment method, and its step also includes：
Step e：In described step c, the desorption tail gas that rotary kiln produces, through through type sack cleaner, remove desorption tail
Solid dust particulate matter in gas, the dust granules thing of desorption is unearthed together with the soil after rotary kiln process or waste, enters
Enter cooling discharging unit；The desorption tail gas of removing dust cell processing are delivered to cooling condensing unit through high-temperature pipe；
Step f：In described step e the desorption tail gas of removing dust cell processing cooling condensing unit in heat exchanger,
Condenser cools down, and heat exchanger, the lower end liquid of condenser lead to unit for treating water, and the upper end tail gas of condenser leads to tail gas to be washed
Wash unit；
Step g：Condensed tail gas further carrying out washing treatment, upper end of spray column in the spray column of washing tail gas unit
Gas leads to gas-liquid separation unit, and lower end liquid enters unit for treating water；
Step h：Lead to the gas of gas-liquid separation unit in described step g, gas-liquid separator reduces tail gas aqueous rate；
The upper end gas of gas-liquid separator leads to tail gas treating unit, and the lower end liquid of gas-liquid separator leads to unit for treating water.
Further, a kind of efficient thermal desorption repairs mercurous pollution treatment method, and its step also includes：
Step i：The condensed water that cooling condensing unit, washing tail gas unit and gas-liquid separation unit produce, spray liquid pass through
Pipeline sequentially passes through regulating reservoir, coagulative precipitation tank, depositing reservoir, the process of charcoal absorption processor；The mercury that unit for treating water produces
And the compound precipitation mud of mercury carries out time granulation pretreatment unit after thickening, or deliver to outward hazardous waste process treating machine
Structure；It is stored in rewetting water tank through water after up to standard for the unit for treating water process, rewetting water tank passes through pipeline and cooling discharging unit phase
Connect, for the humidification cooling of soil after processing, or process rear discharge up to standard.
Further, a kind of efficient thermal desorption repairs mercurous pollution treatment method, and its step also includes：
Step j：The gas leading to tail gas treating unit in described step h passes sequentially through absorbent charcoal adsorber, air-introduced machine
And discharge duct, enter air；Filling sulfurizing activated carbon, the mercurous charcoal absorption of generation inside described activated carbon adsorber
Agent, enters granulation pretreatment unit and recycles, or delivers to outward hazardous waste process disposal mechanism.
Compared with existing mercury and mercuric compounds pollution remediation technology, the utility model has the advantages that：
Granulation pretreatment in technique, selects particular adhesive granulation to process in the soil/waste processing, is effectively reduced thing
Material heating after fine powder dust quantity, can effectively reduce mercurous Dust Capacity in tail gas, simultaneously reduce thermal desorption unit process load and
The dedusting pressure of dust removing units；
Fixed bed heating furnace directly heats, and the hot particle of high temperature is mixed with cold material, and collection is flutterred in direct heat transfer heat exchange simultaneously
Hot particle, mass transfer is high with heat exchange efficiency, and in soil/waste after process, total mercury concentration is not higher than 1.5 mg/kg；
Dust removing units select through type sack cleaner, compared to conventional bag deduster, can be prevented effectively from resistance fluctuation
The thermal desorption pressure transient causing, can avoid thermal desorption pressure to cause the risk that mercury pollution leaks, dedusting desorption tail gas simultaneously
Middle solid particulate matter enters to granulate pretreatment system circulation thermal desorption, can efficiently remove；
Tail gas, can be mercurous in effective control flue gas through through type sack cleaner+condenser+spray column+gas-liquid separator
Amount；
The liquid influent processing unit that tail gas produces through cooling condensing unit, washing unit and gas-liquid separation unit, is processed
Rear water up to standard enters cooling discharging unit humidification and uses, and recycles；
Tail gas enters active carbon adsorber, chooses sulfurizing charcoal absorption, and this adsorbent adsorbs effect to mercury and mercuric compounds
Really good, it is 15 ~ 20 times of normal activated carbon to the adsorption efficiency containing mercuryvapour it can be ensured that tail gas qualified discharge.
Brief description
Fig. 1 is the structural framing schematic diagram that the efficient thermal desorption of the utility model repairs mercurous pollution treatment system.
In figure：1- granulates pretreatment unit；2- feed unit；3- thermal desorption unit；4- dust removing units；5- cooling condensation is single
Unit；6- washing tail gas unit；7- gas-liquid separation unit；8- unit for treating water；9- tail gas adsorption processes exhaust unit；10- cools down
Discharging unit.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is done and further describe in detail.
As shown in figure 1, a kind of efficient thermal desorption repairs mercurous pollution treatment system, including granulation pretreatment unit 1, charging
Unit 2, thermal desorption unit 3, dust removing units 4, cooling condensing unit 5, washing tail gas unit 6, gas-liquid separation unit 7, water process
Unit 8, tail gas adsorption process exhaust unit 9 and cooling discharging unit 10.Described granulation pretreatment unit 1 and feed unit 2 phase
Even, feed unit 2 is connected with thermal desorption unit 3, and the upper end outlet of thermal desorption unit 3 is connected with dust removing units 4, thermal desorption unit
3 lower end outlet is connected with cooling discharging unit 10, and dust removing units 4 lower end dust outlet is connected with granulation pretreatment unit 1, removes
Dirt unit 4 upper end gas vent is connected with cooling condensing unit 5, lower the temperature condensing unit 5 upper end gas vent and washing tail gas list
Unit 6 be connected, washing tail gas unit 6 upper end gas vent is connected with gas-liquid separation unit 7, gas-liquid separation unit 7 gas vent and
Tail gas adsorption processes exhaust unit 9 and is connected, the lower end liquid of cooling condensing unit 5, washing tail gas unit 6 and gas-liquid separation unit 7
Body outlet be all connected with unit for treating water 8, tail gas adsorption process exhaust unit 9 activated carbon adsorber outlet pass through pipeline and
The import connection of air-introduced machine communicates, and directly discharges.The mercury that unit for treating water 8 produces and the compound precipitation mud of mercury are concentrated
Return granulation pretreatment unit after dehydration, or deliver to outward hazardous waste and process and dispose mechanism, the process water up to standard of unit for treating water 8
It is connected with cooling discharging unit 10 by rewetting water tank, be delivered to after the soil that thermal desorption unit is processed or the cooled humidification of waste
Clean soil stockyard.
Wherein said granulation pretreatment unit 1 is sequentially connected by vibratory sieve and comminutor, from particular adhesive granulation
Process, after process, particle diameter is 5 ~ 30 mm, feed unit is led to by belt conveyor, granulation pretreatment is effectively reduced material
Fine powder dust quantity after heating, can effectively reduce mercurous Dust Capacity in tail gas, reduce thermal desorption unit and process load and dedusting list
The dedusting pressure of unit.
Described feed unit 2 includes belt conveyer scale, belt conveyor, granulates pretreated soil or waste through belt conveyer scale
Metering weigh after even drop down in belt conveyor feed hopper, belt conveyor lifting convey under, even drop down arrives
The feed hopper of thermal desorption unit 3.
Described thermal desorption unit 3 is made up of rotary kiln, fixed bed heating furnace, and fixed bed heating furnace is under cylinder of rotary kiln
Side, the heat smoke Direct Contact Heating that contaminated soil/waste is produced with fixed bed heater in rotary kiln, by the soil in kiln
It is heat-treated 20 ~ 50 minutes at a temperature of 300 ~ 600 DEG C, make to evaporate from soil/waste containing mercury contaminants, mass transfer and heat exchange
Efficiency high, in soil/waste after process, total mercury concentration is not higher than 1.5 mg/kg；Soil/waste containing mercury contaminants for the removing is delivered to
Discharging cooling unit 10.
Thermal desorption tail gas enters dust removing units 4 and processes, and main device is through type sack cleaner, and high temperature thermal desorption tail gas exists
Tail gas adsorption is processed under the air-introduced machine effect of exhaust unit setting, after through type sack cleaner, can effectively remove desorption
Solid dust particulate matter in tail gas, the dust granules thing of desorption is entered granulation pretreatment unit 1, and circulation thermal desorption is processed.
In desorption tail gas after through type sack cleaner dedusting, vapor, mercury and mercuric compounds are conveyed successively by pipeline
Process through cooling condensing unit 5, washing tail gas unit 6 and gas-liquid separation unit 7, high-temperature tail gas are entered by heat exchanger air inlet and change
Hot device and spray column, gas outlet goes out heat exchanger；The trend of cooling water moves towards contrary with tail gas；Condensation water collection mouth is arranged on heat exchange
Device and the bottom of spray column, and have pipeline to link together with condensation water treatment facilities.Tail gas through over-heat-exchanger, condenser,
Spray column and gas-liquid separator, indirect heat exchange, temperature can be reduced to less than 30 DEG C, and the vapor in tail gas is cooled to liquid
Water, sufficiently low to guarantee the mercury content in the tail gas after supercooling and water content, mitigate in follow-up vent gas treatment exhaust unit 9
The process load of activated carbon adsorber, also can increase the rate of recovery of mercury.
Described unit for treating water 8 includes regulating reservoir, coagulative precipitation tank, depositing reservoir, charcoal absorption processor and rewetting water
Case, condensed water that cooling condensing unit 5, washing tail gas unit 6 and gas-liquid separation unit 7 produce, spray liquid etc. by pipeline according to
Secondary through regulating reservoir, coagulative precipitation tank, depositing reservoir, charcoal absorption processor process.Using precipitating reagent by the chemical combination of mercury and mercury
Thing precipitates and reclaims, and the mud of generation returns granulation pretreatment unit after carrying out thickening, or delivers to outward hazardous waste process disposal
Mechanism；Treated up to standard after water be stored in rewetting water tank, rewetting water tank is connected with cooling discharging unit 10 by pipeline, is used for
After process, the humidification cooling of soil, adds spray thrower in the revolving drum of described cooling discharging unit 10, it is defeated that revolving drum leads to belt
Send machine, the soil after spray thrower moistening and lowering temperature leads to belt conveyor, be transported to clean soil stockyard through belt conveyor,
Airborne dust can effectively be suppressed, prevent the secondary pollution of mercury.
Described vent gas treatment exhaust unit 9 passes sequentially through pipeline connection by activated carbon adsorber, air-introduced machine and forms, activated carbon
Adsorption tower is connected with gas-liquid separation unit 7 unit, and cooled tail gas passes sequentially through absorbent charcoal adsorber, air-introduced machine and exhaust
Pipeline, enters air.Filling sulfurizing activated carbon inside described activated carbon adsorber, it is common to the adsorption efficiency of mercurous waste gas
15 ~ 20 times of activated carbon, adsorption efficiency is high, is swift in response it can be ensured that the qualified discharge of tail gas.Produce mercurous in system operation
Acticarbon, can enter granulation pretreatment unit 1 and recycle, and also can deliver to outward hazardous waste and process disposal mechanism.
The above is only conscientious description to preferred embodiment of the present utility model, not to scope of the present utility model
Be defined it should be pointed out that：For those skilled in the art, without departing from the utility model design spirit
On the premise of, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of efficient thermal desorption repair mercurous pollution treatment system it is characterised in that：Including granulation pretreatment unit, enter material list
Unit, thermal desorption unit, dust removing units, cooling condensing unit, washing tail gas unit, gas-liquid separation unit, unit for treating water, tail gas
Adsorption treatment exhaust unit and cooling discharging unit；Described granulation pretreatment unit includes screening and granulating system；Described granulation
Pretreatment unit is connected with feed unit, and feed unit, cooling discharging unit are all connected with thermal desorption unit with dust removing units, remove
Dirt unit is connected with cooling condensing unit and granulation pretreatment unit respectively, and cooling condensing unit is connected with washing tail gas unit,
Washing tail gas unit is connected with gas-liquid separation unit, and gas-liquid separation unit processes exhaust unit with tail gas adsorption and is connected, and cooling is cold
Solidifying unit, washing tail gas unit are connected with unit for treating water respectively with gas-liquid separation unit, simultaneously unit for treating water with cool down out
Material unit is connected.
2. a kind of efficient thermal desorption repairs mercurous pollution treatment system it is characterised in that described charging according to claim 1
Unit includes belt conveyer scale, belt conveyor, and described belt conveyor leads to thermal desorption unit.
3. a kind of efficient thermal desorption repairs mercurous pollution treatment system it is characterised in that described heat is de- according to claim 1
Coupon unit includes rotary kiln, fixed bed heating furnace, and described fixed bed heating furnace is below the cylinder of rotary kiln；On described rotary kiln
End is connected with dust removing units by high-temperature pipe, and cooling discharging unit is led in lower end.
4. a kind of efficient thermal desorption repairs mercurous pollution treatment system it is characterised in that described cooling according to claim 1
Discharging unit includes revolving drum, belt conveyor, adds spray thrower in described revolving drum, and revolving drum leads to belt conveyor, skin
Band conveyer leads to clean soil stockyard.
5. a kind of efficient thermal desorption repairs mercurous pollution treatment system it is characterised in that described dedusting according to claim 1
Unit is through type sack cleaner；Dust removing units upper end gas is delivered to cooling condensing unit, dust removing units through high-temperature pipe
Lower end is connected with granulation pretreatment unit.
6. a kind of efficient thermal desorption repairs mercurous pollution treatment system it is characterised in that described cooling according to claim 1
Condensing unit includes heat exchanger, condenser, and after dust removing units dedusting, tail gas is connected with heat exchanger, described heat exchanger and cold
All using tubular heat exchanger, described condenser is indirect water-cooling condenser to condenser, and the upper end of described heat exchanger is led to described cold
Condenser, described washing tail gas unit is led in the upper end of described condenser, and described heat exchanger, the lower end of condenser each lead at water
Reason unit.
7. a kind of efficient thermal desorption repairs mercurous pollution treatment system it is characterised in that described tail gas according to claim 1
Washing unit is made up of spray column, and the upper end gas vent of spray column leads to gas-liquid separation unit, lower end liquid outlet and Shui Chu
Reason unit is connected.
8. a kind of efficient thermal desorption repairs mercurous pollution treatment system it is characterised in that described gas-liquid according to claim 1
Separative element is gas-liquid separator, and tail gas treating unit is led in the upper end of described gas-liquid separator, and the lower end of gas-liquid separator leads to
To unit for treating water.
9. a kind of efficient thermal desorption repairs mercurous pollution treatment system it is characterised in that at described water according to claim 1
Reason unit includes regulating reservoir, coagulative precipitation tank, depositing reservoir, charcoal absorption processor and rewetting water tank；Cooling condensing unit, tail
Gas washing unit and gas-liquid separation unit by pipeline be sequentially connected regulating reservoir, coagulative precipitation tank, depositing reservoir, at charcoal absorption
Reason device, rewetting water tank is connected with cooling discharging unit by pipeline.
10. a kind of efficient thermal desorption repairs mercurous pollution treatment system it is characterised in that described tail according to claim 1
Gas disposal exhaust unit includes activated carbon adsorber, air-introduced machine；Activated carbon adsorber, air-introduced machine pass sequentially through pipeline and connect, and live
Property charcoal adsorption tower is connected with gas-liquid separation unit.
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| CN107639110A (en) * | 2017-10-20 | 2018-01-30 | 湖南永清机械制造有限公司 | A kind of device for repairing polluted soil |
| CN108751513A (en) * | 2018-07-18 | 2018-11-06 | 北京建工环境修复股份有限公司 | A kind of system being used for the processing of thermal desorption mercury-containing waste water and its mercury resource utilization |
| CN108744829A (en) * | 2018-07-18 | 2018-11-06 | 北京建工环境修复股份有限公司 | It is a kind of to desorb exhaust treatment system for the indirect thermal of mercurous solid waste and soil treatment |
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| CN109013685A (en) * | 2018-07-06 | 2018-12-18 | 北京石油化工学院 | A kind of hydrocarbon contamination soil repair system based on thermal desorption in situ |
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| CN109622585A (en) * | 2018-10-12 | 2019-04-16 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | A kind of movable type contaminated soil thermal desorption system |
| CN112473337A (en) * | 2020-09-04 | 2021-03-12 | 埃克赛姆光电技术（苏州）有限公司 | Comprehensive treatment method for log cooking tail gas |
| CN113680784A (en) * | 2020-05-19 | 2021-11-23 | 中国石油天然气集团有限公司 | Oily solid waste thermal desorption system and process capable of efficiently utilizing heat energy |
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| CN108815997A (en) * | 2018-06-29 | 2018-11-16 | 武汉都市环保工程技术股份有限公司 | A kind of desorption tail gas purifying treatment method of indirect thermal containing mercury contaminated soil |
| CN109013685A (en) * | 2018-07-06 | 2018-12-18 | 北京石油化工学院 | A kind of hydrocarbon contamination soil repair system based on thermal desorption in situ |
| CN108744829A (en) * | 2018-07-18 | 2018-11-06 | 北京建工环境修复股份有限公司 | It is a kind of to desorb exhaust treatment system for the indirect thermal of mercurous solid waste and soil treatment |
| CN109045898A (en) * | 2018-07-18 | 2018-12-21 | 北京建工环境修复股份有限公司 | It is a kind of to desorb repair system and method for the indirect thermal of mercurous solid waste and soil treatment |
| CN108751513A (en) * | 2018-07-18 | 2018-11-06 | 北京建工环境修复股份有限公司 | A kind of system being used for the processing of thermal desorption mercury-containing waste water and its mercury resource utilization |
| CN109045898B (en) * | 2018-07-18 | 2023-12-01 | 北京建工环境修复股份有限公司 | Indirect thermal desorption restoration system and method for mercury-containing solid waste and soil treatment |
| CN108751513B (en) * | 2018-07-18 | 2023-12-05 | 北京建工环境修复股份有限公司 | System for be used for thermal desorption to contain mercury waste water treatment and mercury recycling recovery thereof |
| CN109622585A (en) * | 2018-10-12 | 2019-04-16 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | A kind of movable type contaminated soil thermal desorption system |
| CN109622585B (en) * | 2018-10-12 | 2021-01-01 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | Movable thermal desorption system for contaminated soil |
| CN113680784A (en) * | 2020-05-19 | 2021-11-23 | 中国石油天然气集团有限公司 | Oily solid waste thermal desorption system and process capable of efficiently utilizing heat energy |
| CN113680784B (en) * | 2020-05-19 | 2023-02-07 | 中国石油天然气集团有限公司 | Oily solid waste thermal desorption system and process capable of efficiently utilizing heat energy |
| CN112473337A (en) * | 2020-09-04 | 2021-03-12 | 埃克赛姆光电技术（苏州）有限公司 | Comprehensive treatment method for log cooking tail gas |
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