CN204448809U - A kind of for the system in the heat treatment restorative procedure of contaminated soil - Google Patents
A kind of for the system in the heat treatment restorative procedure of contaminated soil Download PDFInfo
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- CN204448809U CN204448809U CN201520049113.0U CN201520049113U CN204448809U CN 204448809 U CN204448809 U CN 204448809U CN 201520049113 U CN201520049113 U CN 201520049113U CN 204448809 U CN204448809 U CN 204448809U
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Abstract
The utility model discloses a kind of for the system in the heat treatment restorative procedure of contaminated soil, comprise soil crusher, the first roller belt conveyor with closed storehouse, blade dryer, with second roller belt conveyor in closed storehouse and rotary kiln thermal desorption unit, described soil crusher, the first roller belt conveyor, blade dryer, the second roller belt conveyor and rotary kiln thermal desorption unit are provided with pipeline and are communicated with a secondary combustion chamber.The organic matter that device systems of the present utility model can reduce in soil diffuses into air, organic matter is thoroughly converted into the nontoxic material of water and carbon dioxide and other, safety dumping after vent gas treatment, heat energy recycling in system, further reduction system energy consumption, good economy performance, the soil after process can be recycled.
Description
Technical field
The utility model relates to environmental improvement apparatus field, particularly relates to a kind of for the device systems in the heat treatment restorative procedure of contaminated soil.
Background technology
In contaminated soil remediation process, can use heat treatment technics, it belongs to peripheral doses technology, is one of technology important in current soil remediation field.Current organic material contaminated soil recovery technique is mainly divided into based technique for in-situ remediation and showering.Wherein showering is excavated by contaminated soil, processes on the ground.Thermal desorption technology is the one of showering technology.This technology generally needs to carry out precrushing to soil before treatment, carry, the operation such as to preheat, and soil particle fragmentation diminished, homogeneous, reduces the moisture content in soil, for thermal desorption unit creates favourable condition of work simultaneously.Because partial organic substances exists volatility, therefore in repair process, partial organic substances does not also enter into thermal desorption unit, just evaporate in air, secondary pollution is caused to surrounding environment, the crowd around workmen and construction site is caused to the infringement in health.Application number be 201310349547.8 Chinese patent also once proposed to adopt thermal desorption technology to repair organic polluted soil, but just during soil breaking transport, the deep treatment of organic prevention of secondary pollution and tail gas is not handled it in repair process, also lack such device systems combination.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of for the device systems in the heat treatment restorative procedure of contaminated soil, this device systems organic matter that can reduce in soil when processing contaminated soil diffuses into air, pass through gathering system, the organic gas produced during process and dust carry out collecting and processing, organic matter after thermal desorption unit is separated enters secondary combustion chamber and carries out high-temp combustion, organic matter is thoroughly converted into the nontoxic material of water and carbon dioxide and other, safety dumping after vent gas treatment.Heat energy recycling in system, reduce system energy consumption further, good economy performance, the soil after process can be recycled.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of for the system in the heat treatment restorative procedure of contaminated soil, it comprise be connected successively soil crusher, the first roller belt conveyor with closed storehouse, blade dryer, with second roller belt conveyor in closed storehouse and rotary kiln thermal desorption unit, described soil crusher, the first roller belt conveyor, blade dryer, the second roller belt conveyor and rotary kiln thermal desorption unit are provided with pipeline and are communicated with a secondary combustion chamber.
In the utility model preferred embodiment, be provided with hydraulic pressure pusher between described second roller belt conveyor and rotary kiln thermal desorption unit, described second roller belt conveyor is communicated with rotary kiln thermal desorption unit by described hydraulic pressure pusher.
In the utility model preferred embodiment, described secondary combustion chamber is connected with air heat exchanger and cyclone dust collectors, described air heat exchanger and cyclone dust collectors are interconnected, and described air heat exchanger is communicated with rotary kiln thermal desorption unit with described blade dryer, secondary combustion chamber simultaneously.
In the utility model preferred embodiment, described air heat exchanger simultaneously with one rapidly cooling tower be communicated with, described cooling tower is rapidly communicated with a Dry absorption device, and described Dry absorption device is communicated with the mixture storage tank being loaded with calcium oxide and active carbon with a sack cleaner.
In the utility model preferred embodiment, the top of described cooling tower is rapidly provided with nozzle, and described nozzle is connected with aqueous slkali.
In the utility model preferred embodiment, described in be loaded with calcium oxide and active carbon mixture storage tank be connected with a blower fan.
In the utility model preferred embodiment, described sack cleaner is connected with an exhaust blower, and described exhaust blower is connected with a spray scrubber simultaneously, and described spray scrubber is connected with a chimney be vented.
In the utility model preferred embodiment, described the first roller belt conveyor with closed storehouse or the second roller belt conveyor with closed storehouse include closed storehouse, belt conveyor, the driver of driving described belt conveyor rotation, multiple carrying roller, charging aperture and discharging opening, described belt conveyor is around described multiple carrying roller, described charging aperture and discharging opening lay respectively at the two ends in described closed storehouse, described belt conveyor, driver and multiple carrying roller are all positioned at described closed storehouse, described closed storehouse are provided with gas and dust outlet.
In the utility model preferred embodiment, described closed storehouse is provided with observation window, the outer surface near described belt conveyor in described closed storehouse is provided with clean-up scraper.
The beneficial effects of the utility model are: the heat treatment restorative procedure of contaminated soil of the present utility model adopts closed fragmentation, transport and preheating unit, and the organic matter reduced in soil diffuses into air largely.Pass through gathering system, the organic gas produce pretreatment unit and dust carry out collecting and advanced treating, organic matter after thermal desorption unit is separated enters secondary combustion chamber and carries out high-temp combustion, organic matter is thoroughly converted into water and carbon dioxide, safety dumping.Consider heat energy recycling in system, reduce system energy consumption further, good economy performance, the soil after process can be recycled.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the heat treatment restorative procedure of contaminated soil of the present utility model and the embodiment schematic diagram of system;
Fig. 2 is the structural representation for the first roller belt conveyor in the system in the heat treatment restorative procedure of contaminated soil of the present utility model or the second roller belt conveyor.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the utility model embodiment below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment comprises:
Refer to Fig. 1 and Fig. 2, of the present utility model for the system in the heat treatment restorative procedure of contaminated soil, it comprise be connected successively soil crusher 1, the first roller belt conveyor 2 with closed storehouse, blade dryer 3, with second roller belt conveyor 4 in closed storehouse and rotary kiln thermal desorption unit 6, described soil crusher 1, first roller belt conveyor 2, blade dryer 3, second roller belt conveyor 4 are provided with pipeline with rotary kiln thermal desorption unit 6 and are communicated with a secondary combustion chamber 7, and soil crusher 1 is wolf's fang tooth disintegrating machine.
Preferably, be provided with hydraulic pressure pusher 5 between described second roller belt conveyor 4 and rotary kiln thermal desorption unit 6, described second roller belt conveyor 4 is communicated with rotary kiln thermal desorption unit 6 by described hydraulic pressure pusher 5.
Preferably, described secondary combustion chamber 7 is connected with air heat exchanger 9 and cyclone dust collectors 10, described air heat exchanger 9 and cyclone dust collectors 10 are interconnected, described air heat exchanger 9 is communicated with rotary kiln thermal desorption unit 6 with described blade dryer 3, secondary combustion chamber 7 simultaneously, air after heat exchange is sent into blade dryer 3, secondary combustion chamber 7 and rotary kiln thermal desorption unit 6, carries out heat energy recycle.
Preferably, described air heat exchanger 9 simultaneously with one rapidly cooling tower 11 be communicated with, described cooling tower rapidly 11 is communicated with a Dry absorption device 14, and described Dry absorption device 14 is communicated with the mixture storage tank 12 being loaded with calcium oxide and active carbon with a sack cleaner 15.
Preferably, the top of described cooling tower rapidly 11 is provided with nozzle, and described nozzle is connected with aqueous slkali.
Preferably, the mixture storage tank 12 being loaded with calcium oxide and active carbon described in is connected with a blower fan 13.
Preferably, described sack cleaner 15 is connected with an exhaust blower 16, and described exhaust blower 16 is connected with a spray scrubber 17 simultaneously, and described spray scrubber 17 is connected with a chimney be vented 18.
Preferably, described the first roller belt conveyor 2 with closed storehouse or the second roller belt conveyor 4 with closed storehouse include closed storehouse 26, belt conveyor 20, drive the driver 19 that described belt conveyor 20 rotates, multiple carrying roller 23, charging aperture 21 and discharging opening 27, contaminated soil enters conveyer from discharging opening 27 out from charging aperture 21, described belt conveyor 20 is around described multiple carrying roller 23, described charging aperture 21 and discharging opening 27 lay respectively at the two ends in described closed storehouse 26, described belt conveyor 20, driver 19 and multiple carrying roller 23 are all positioned at described closed storehouse 26, described closed storehouse 26 is provided with gas and dust outlet 22, burning process is carried out for gas and dust are discharged to secondary combustion chamber 7 by pipeline.
Preferably, described closed storehouse 26 is provided with observation window 24, soil conveying situation can be observed through observation window 24, outer surface near described belt conveyor 20 in described closed storehouse 26 is provided with clean-up scraper 25, clean-up scraper 25 can scrape off the earth that belt conveyor 20 adheres to, ensure the clean of belt conveyor 20, make belt conveyor 20 long-play also can not reduce transfer efficiency.
During device systems work of the present utility model, first contaminated soil to be repaired is sent into enclosed soil crusher 1 and carry out fragmentation, bulk soil breaking is become fritter soil by soil crusher 1, soil crusher 1 top cover has fuel gas and dust tap connect aspiration pump, the organic gas of overflowing from contaminated soil when being run by soil crusher 1 and dust collection enter secondary combustion chamber 7 and carry out burning process.
Contaminated soil after fragmentation enters the first roller belt conveyor 2 with closed storehouse from the bottom of described soil crusher 1, contaminated soil after fragmentation is sent into blade dryer 3 and is carried out drying by described first roller belt conveyor 2, and the gas of generation when contaminated soil carries out drying in described blade dryer 3 and dust are collected to be sent into secondary combustion chamber 7 and carry out burning and process.
Dried contaminated soil enters the second roller belt conveyor 4 with closed storehouse from described blade dryer 3, dried contaminated soil is sent in rotary kiln thermal desorption unit 6 and is carried out thermal desorption process by described second roller belt conveyor 4, the gas produced in thermal desorption processing procedure and dust are collected feeding secondary combustion chamber 7 and carry out burning process, soil after thermal desorption process is cleaning soil, can recycle.
Gas in described secondary combustion chamber 7 and dust are after Thorough combustion, and organic matter wherein and carbon granule are decomposed and enter cyclone dust collectors 10 with the form of ash-laden gas.
The big dust particle in ash-laden gas removed by described cyclone dust collectors 10, the ash-laden gas removed after big dust particle enters air heat exchanger 9, heat exchange is carried out in air heat exchanger 9, air after heat exchange enters described rotary kiln thermal desorption unit 6 and secondary combustion chamber 7 and blade dryer 3, carries out heat recovery and utilization.
The tail gas that air heat exchanger 9 exports enters cooling tower 11 rapidly, the nozzle of aqueous slkali in lye tank (vat) 8 through cooling tower 11 top rapidly sent into rapidly in cooling tower 11 by force (forcing) pump, aqueous slkali is atomized into trickle droplet by nozzle, acidic materials in tail gas and aqueous slkali droplet generation neutralization reaction, remove the acidic materials in tail gas.
Be connected from the tail gas that cooling tower 11 is discharged rapidly with Dry absorption device 14, the mixture storage tank 12 of splendid attire calcium oxide and active carbon is provided with at the connection flue place of Dry absorption device 14, the mixture of calcium oxide and active carbon purges through blower fan 13, enter and connect flue and react with the tail gas that cooling tower 11 is discharged rapidly, purify this tail gas further with removal and the remaining organic matter absorbed in this tail gas and hydrogen chloride, nitrogen oxide and oxysulfide one acid ingredient of class.
Enter sack cleaner 15 through the reacted tail gas of Dry absorption device 14, remove the fine solid particle be detained in tail gas.
After minute dusts removed by sack cleaner 15, tail gas enters and causes spray scrubber 17 through exhaust blower 16 and wash, acidic ingredients in further removal tail gas and fine solid particle, tail gas is now comparatively clean, and last tail gas enters in air through chimney 18.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. one kind for the system in the heat treatment restorative procedure of contaminated soil, it is characterized in that, comprise be connected successively soil crusher, the first roller belt conveyor with closed storehouse, blade dryer, with second roller belt conveyor in closed storehouse and rotary kiln thermal desorption unit, described soil crusher, the first roller belt conveyor, blade dryer, the second roller belt conveyor and rotary kiln thermal desorption unit are provided with pipeline and are communicated with a secondary combustion chamber.
2. according to claim 1 for the system in the heat treatment restorative procedure of contaminated soil, it is characterized in that, be provided with hydraulic pressure pusher between described second roller belt conveyor and rotary kiln thermal desorption unit, described second roller belt conveyor is communicated with rotary kiln thermal desorption unit by described hydraulic pressure pusher.
3. according to claim 1 for the system in the heat treatment restorative procedure of contaminated soil, it is characterized in that, described secondary combustion chamber is connected with air heat exchanger and cyclone dust collectors, described air heat exchanger and cyclone dust collectors are interconnected, and described air heat exchanger is communicated with rotary kiln thermal desorption unit with described blade dryer, secondary combustion chamber simultaneously.
4. according to claim 3 for the system in the heat treatment restorative procedure of contaminated soil, it is characterized in that, described air heat exchanger simultaneously with one rapidly cooling tower be communicated with, described cooling tower is rapidly communicated with a Dry absorption device, and described Dry absorption device is communicated with the mixture storage tank being loaded with calcium oxide and active carbon with a sack cleaner.
5. according to claim 4ly it is characterized in that for the system in the heat treatment restorative procedure of contaminated soil, the top of described cooling tower is rapidly provided with nozzle, and described nozzle is connected with aqueous slkali.
6. according to claim 4ly to it is characterized in that for the system in the heat treatment restorative procedure of contaminated soil, described in be loaded with calcium oxide and active carbon mixture storage tank be connected with a blower fan.
7. according to claim 4 for the system in the heat treatment restorative procedure of contaminated soil, it is characterized in that, described sack cleaner is connected with an exhaust blower, and described exhaust blower is connected with a spray scrubber simultaneously, and described spray scrubber is connected with a chimney be vented.
8. according to claim 1 for the system in the heat treatment restorative procedure of contaminated soil, it is characterized in that, described the first roller belt conveyor with closed storehouse or the second roller belt conveyor with closed storehouse include closed storehouse, belt conveyor, drive the driver that described belt conveyor rotates, multiple carrying roller, charging aperture and discharging opening, described belt conveyor is around described multiple carrying roller, described charging aperture and discharging opening lay respectively at the two ends in described closed storehouse, described belt conveyor, driver and multiple carrying roller are all positioned at described closed storehouse, described closed storehouse is provided with gas and dust outlet.
9. according to claim 8ly to it is characterized in that for the system in the heat treatment restorative procedure of contaminated soil, described closed storehouse is provided with observation window, the outer surface near described belt conveyor in described closed storehouse is provided with clean-up scraper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520049113.0U CN204448809U (en) | 2015-01-23 | 2015-01-23 | A kind of for the system in the heat treatment restorative procedure of contaminated soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520049113.0U CN204448809U (en) | 2015-01-23 | 2015-01-23 | A kind of for the system in the heat treatment restorative procedure of contaminated soil |
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| CN204448809U true CN204448809U (en) | 2015-07-08 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607454A (en) * | 2015-01-23 | 2015-05-13 | 苏州同和环保工程有限公司 | Thermal treatment restoration method and system for contaminated soil |
| CN105170634A (en) * | 2015-08-20 | 2015-12-23 | 凯天环保科技股份有限公司 | Remediation device for halohydrocarbon contaminated soil |
| CN105170630A (en) * | 2015-10-27 | 2015-12-23 | 华东理工大学 | Combined type soil washing and desorption method and device |
| CN106180169A (en) * | 2016-08-31 | 2016-12-07 | 广西博世科环保科技股份有限公司 | A kind of Soil Thermal desorption renovation technique and equipment |
| CN107388265A (en) * | 2017-07-17 | 2017-11-24 | 武汉都市环保工程技术股份有限公司 | A kind of organic polluted soil thermal desorption tail gas clean-up processing system and method |
| 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 |
| CN107671115A (en) * | 2016-08-01 | 2018-02-09 | 江苏朋禾环保技术有限公司 | Centrifugal thin layer pyrolysis charring device |
| CN107931320A (en) * | 2017-11-16 | 2018-04-20 | 葛洲坝中固科技股份有限公司 | A kind of environment-friendly type organic polluted soil thermal desorption repair system |
| CN109731899A (en) * | 2019-01-29 | 2019-05-10 | 中一(福建)环境工程有限公司 | A kind of contaminated soil remediation method |
| CN109848197A (en) * | 2019-01-04 | 2019-06-07 | 北京坤达胜源环境科技有限公司 | A kind of thermal desorption repair system of organic material contaminated soil |
| CN111842458A (en) * | 2020-07-01 | 2020-10-30 | 广东中科碧城环境技术有限公司 | Thermal desorption remediation method for organic contaminated site |
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2015
- 2015-01-23 CN CN201520049113.0U patent/CN204448809U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607454A (en) * | 2015-01-23 | 2015-05-13 | 苏州同和环保工程有限公司 | Thermal treatment restoration method and system for contaminated soil |
| CN104607454B (en) * | 2015-01-23 | 2018-04-06 | 苏州同和环保工程有限公司 | The heat treatment restorative procedure and system of a kind of contaminated soil |
| CN105170634A (en) * | 2015-08-20 | 2015-12-23 | 凯天环保科技股份有限公司 | Remediation device for halohydrocarbon contaminated soil |
| CN105170634B (en) * | 2015-08-20 | 2017-09-15 | 航天凯天环保科技股份有限公司 | A kind of contaminated with halogenated hydrocarbons soil restoring device |
| CN105170630A (en) * | 2015-10-27 | 2015-12-23 | 华东理工大学 | Combined type soil washing and desorption method and device |
| CN107671115A (en) * | 2016-08-01 | 2018-02-09 | 江苏朋禾环保技术有限公司 | Centrifugal thin layer pyrolysis charring device |
| CN106180169B (en) * | 2016-08-31 | 2018-09-28 | 广西博世科环保科技股份有限公司 | A kind of soil thermal desorption renovation technique and equipment |
| CN106180169A (en) * | 2016-08-31 | 2016-12-07 | 广西博世科环保科技股份有限公司 | A kind of Soil Thermal desorption renovation technique and equipment |
| CN107388265A (en) * | 2017-07-17 | 2017-11-24 | 武汉都市环保工程技术股份有限公司 | A kind of organic polluted soil thermal desorption tail gas clean-up processing system and method |
| 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 |
| CN107931320A (en) * | 2017-11-16 | 2018-04-20 | 葛洲坝中固科技股份有限公司 | A kind of environment-friendly type organic polluted soil thermal desorption repair system |
| CN107931320B (en) * | 2017-11-16 | 2020-12-25 | 葛洲坝中固科技股份有限公司 | Environment-friendly organic contaminated soil thermal desorption repair system |
| CN109848197A (en) * | 2019-01-04 | 2019-06-07 | 北京坤达胜源环境科技有限公司 | A kind of thermal desorption repair system of organic material contaminated soil |
| CN109731899A (en) * | 2019-01-29 | 2019-05-10 | 中一(福建)环境工程有限公司 | A kind of contaminated soil remediation method |
| CN111842458A (en) * | 2020-07-01 | 2020-10-30 | 广东中科碧城环境技术有限公司 | Thermal desorption remediation method for organic contaminated site |
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