CN207204845U - A kind of thermal desorption soil repair system indirectly - Google Patents
A kind of thermal desorption soil repair system indirectly Download PDFInfo
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- CN207204845U CN207204845U CN201721127402.3U CN201721127402U CN207204845U CN 207204845 U CN207204845 U CN 207204845U CN 201721127402 U CN201721127402 U CN 201721127402U CN 207204845 U CN207204845 U CN 207204845U
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- thermal desorption
- repair system
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- soil repair
- soil
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Abstract
It the utility model is related to a kind of thermal desorption soil repair system, including burner, indirect thermal desorption device, vapour condensation device and water treatment facilities indirectly；The thermal desorption room that thermal desorption device includes outside interlayer heat transfer chamber and is made up of scrapper conveyor indirectly, the thermal desorption device top indirectly are provided with charging aperture and gas outlet；Bottom sets out material mouth；The interlayer heat transfer chamber is provided with the air inlet connected with burner.The utility model replaces auger conveying soil that moisture content height, clayed soil can be avoided to be adhered to auger wall with chain-driving scraper plate, extrudes accumulation for a long time and blocks auger.Scraper plate is more direct relative to auger to the thrust of soil, and blocking is less prone to for bulky grain soil.It can be cleared up provided with sawtooth mouth in scraper plate bottom, the soil in crushing hot desorption chamber.Indirect thermal desorption device feed inlet and outlet, which is provided with star gas lock, can effectively prevent organic gas caused by thermal desorption from leaking out equipment and causing secondary pollution.
Description
Technical field
A kind of thermal desorption soil repair system indirectly is the utility model is related to, belongs to environmental protection technical field.
Background technology
As China's chemical engineering industry develops, China's soil pollution situation is on the rise, many soils due to environmental practice not
It is heavily polluted in place.Occur a large amount of chemical industry moved or will closed down, agricultural chemicals enterprise in recent years, these enterprises are conventional
In production process, because environmental consciousness is not strong, the special organic matter of a large amount of poisonous and harmful substances is caused to enter in soil, serious prestige
Coerce surrounding resident and ecological environment.
Organic contaminants in soil mainly includes volatile organic matter（VOCs）, semi-volatile organic matter（SVOCs）, it is polycyclic
Aromatic hydrocarbons（PAHs）, Polychlorinated biphenyls（PCBs）, petroleum hydrocarbon（TPHs）And agricultural chemicals etc..These pollutants are mainly derived from oil
The industries such as work, agricultural chemicals, paint, it is most of that there is teratogenesis, carcinogenic effect.
The indirect thermal desorption technology of soil heterotopic turns into one of widely studied soil restoring technology in recent years, and the technology passes through
Contaminated soil is excavated out and delivers to thermal desorption equipment after pretreatment, is heated to certain temperature, makes organic matter therein
Separation is evaporated from soil.But most of thermal desorption technology indirectly is from auger conveying soil, to consistency of soil, granular size with
And water content requirement is higher, easily occur that auger is stuck, off-axis situation, and directly to spray condensation efficiency relatively low for steam.
Utility model content
Technical problem to be solved in the utility model is the shortcomings that overcoming prior art, there is provided a kind of indirect thermal desorption
Soil repair system, it can adapt to a variety of viscosity, the soil of moisture content, and disposal ability is big, and fault rate is low, while what is steamed contains
Organic matter condensed steam condensed absorbent is more thorough.
In order to solve the above technical problems, the utility model provides a kind of thermal desorption soil repair system indirectly, including combustion
Burn device, indirect thermal desorption device, vapour condensation device and water treatment facilities；It is characterized in that：The indirect thermal desorption device
Including outside interlayer heat transfer chamber and the thermal desorption room being made up of scrapper conveyor, it is described indirectly thermal desorption device top be provided with charging aperture and
Gas outlet；Bottom sets out material mouth；The interlayer heat transfer chamber is provided with the air inlet connected with burner；
The vapour condensation device includes steam condensing tower；The steam condensing tower includes tower body, is arranged on tower body bottom
Air inlet and condensation-water drain, be arranged at the top of tower body incondensable gas outlet, be arranged on the ripple of tower body lower inside
Plate filler and the liquid distribution trough and mesh mist eliminator for being arranged on tower body inner upper；
The gas outlet of the thermal desorption device indirectly is connected with the air inlet of vapour condensation device bottom, and the condensed water goes out
Mouth is connected with water treatment facilities；The incondensable gas outlet is connected to the burner by pipeline.
The technical scheme that the utility model further limits is：Also include be arranged on incondensable gas outlet and discharging opening it
Between high-pressure suction fan on pipeline.
Further, in addition to be arranged on water treatment facilities outlet water circulating pump；The water circulating pump passes through pipeline branch
Road is respectively connecting to tower body side condensing water inlet and discharging opening.Also include being arranged on water circulating pump and tower body side condensed water enters
Aerial cooler between mouthful.Also include being arranged on charging aperture and the star gas lock of discharge outlet.The scrapper conveyor includes tilting
One group of scraper plate on chain, the chain are connected by gear shaft with external motor drive shaft power.The scrapper conveyor
Packing seal layer is provided between gear shaft and outside electromechanical machine.Between the bottom condensate water outlet of the tower body and water treatment facilities
Pipeline is provided with S-shaped water seal.Flue gas chimney is provided with above the outside interlayer heat transfer chamber.The outside interlayer heat transfer chamber be provided with
The plenum chamber of alumina silicate heat-insulation layer.
The beneficial effects of the utility model are：The utility model replaces auger conveying soil to avoid with chain-driving scraper plate
Moisture content is high, clayed soil is adhered to auger wall, extrudes accumulation for a long time and blocks auger.Scraper plate is to the thrust of soil relative to strand
Dragon is more direct, and blocking is less prone to for bulky grain soil.Being provided with sawtooth mouth in scraper plate bottom can clear up, in crushing hot desorption chamber
Soil.Indirect thermal desorption device feed inlet and outlet, which is provided with star gas lock, can effectively prevent organic gas caused by thermal desorption from leaking
Going out equipment causes secondary pollution.Vapour condensation device can be effectively increased gas-liquid contact face using corrugated plate packing and improve cooling effect
Rate, bottom S-shaped water seal can prevent extraneous air from entering thermal desorption equipment, and causing negative pressure to reduce influences organic matter removal effect.It is high
Pressure air-introduced machine extracts caused organic steam in indirect thermal desorption device out in time except the enough negative pressure of generation, can also be cold by steam
The solidifying condensed fixed gas of device delivers to burner burning, and heat transfer chamber is connected with the flue gas of burner, and thermal desorption room is not straight
Connect and smoke contacts；Vent gas treatment is simplified, avoids secondary pollution.The utility model is applied to volatile organic matter, half volatilization
The reparation of the organic material contaminated soils such as property organic matter, polycyclic aromatic hydrocarbon, agricultural chemicals.Compared with prior art, the system can be realized automatically
Change control, reparation speed is fast, efficiency high, saves vent gas treatment cost.
Brief description of the drawings
Fig. 1 is structure scheme of installation of the present utility model.
Reference：The indirect thermal desorption devices of 1-, 2- charging apertures, 3- blowdown stacks, 4- steam outlets, the condensation of 5- steam
Device, 6- air coolers, 7- high-pressure suction fans, 8- water treatment facilities, 9- scrapper conveyors, 10- burners, 11- burners, 12- go out
Material mouth.
Embodiment
Embodiment 1
A kind of thermal desorption soil repair system indirectly that the present embodiment provides, as shown in figure 1, including being produced with burner combustion
The burner 10 of raw high-temperature flue gas, for the indirect thermal desorption device 1 of material conveying heating, the steam cooling dress of cooling steam
5 are put, water treatment case 8.
The burner 10 is connected with indirect thermal desorption device, and the burner is by rectangular type bumer, burner 11
With Blast mechanism into being provided with thermocouple in the combustion chamber.
The thermal desorption device 1 indirectly is provided with fume emission chimney 3, material inlet 2, material outlet 12, discharge of steam
Mouth 4.Steam outlet 4 is connected with vapour condensation device.The material inlet 2, material outlet 12 go out to be connected with star gas lock, prevent
Only released in indirect thermal desorption device 1 outside organic matter.
The thermal desorption device 1 indirectly is made up of internal layer thermal desorption room and outside sandwich heat transfer chamber, and internal layer thermal desorption room is provided with
Scrapper conveyor, scrapper conveyor blade are connected by chain, and scraper plate bottom is zigzag.Outer heat transfer room is plenum chamber, is provided with heat transfer chamber
Heat-insulation layer.Heat transfer chamber is connected with burner 10.
The scrapper conveyor 9 is connected by axle with the motor of the indirect outside of thermal desorption device 1, is used between axle and thermal desorption device
Packing seal.
The steam cooling device 5, including steam condensing tower and high-pressure suction fan 7.The steam condensing tower bottom is set
Steam inlet, bottom set coolant outlet, and top exports provided with fixed gas.Steam inlet and the steaming of indirect thermal desorption device 1
Vapour floss hole 4 is connected, coolant outlet water receiving processing unit 8, and fixed gas outlet is connected with the import of high-pressure suction fan 7.The steaming
Vapour condensing tower is provided with liquid distribution trough and mesh mist eliminator built with corrugated plate packing, filler top.By water circulating pump 13 by water
A part of water after the processing for the treatment of box 8 delivers to aerial cooler 6, and a part delivers to the material outlet 12 of the de- device of indirect thermal.
The water treatment case be by adding the chemical oxidizing agents such as hydrogen peroxide, potassium permanganate, Fenton medicaments, make its with
Organic matter occurs chemical reaction and carrys out decomposing organic matter.Of course, it should be understood that water treatment case not limited to this, as long as can be by water
Middle organic matter processing is up to standard.
The utility model preferred embodiment is elaborated above in conjunction with accompanying drawing, had in those skilled in the art
In standby knowledge, it can also be made a variety of changes on the premise of the utility model aims are not departed from.All use equally is replaced
Change or technical scheme that equivalent transformation is formed, all fall within the protection domain of the requires of the utility model.
Claims (10)
- A kind of 1. thermal desorption soil repair system, including burner, indirect thermal desorption device, vapour condensation device and water indirectly Processing unit；It is characterized in that：The heat that thermal desorption device includes outside interlayer heat transfer chamber and is made up of scrapper conveyor described indirectly takes off Alcove, the thermal desorption device top indirectly are provided with charging aperture and gas outlet；Bottom sets out material mouth；The interlayer heat transfer chamber is provided with The air inlet connected with burner；The vapour condensation device includes steam condensing tower；The steam condensing tower includes tower body, is arranged on entering for tower body bottom Gas port and condensation-water drain, the incondensable gas being arranged at the top of tower body outlet, the corrugated plating that is arranged on tower body lower inside are filled out Expect and be arranged on the liquid distribution trough and mesh mist eliminator of tower body inner upper；The gas outlet of thermal desorption device indirectly is connected with the air inlet of vapour condensation device bottom, the condensation-water drain and Water treatment facilities connects；The incondensable gas outlet is connected to the burner by pipeline.
- 2. thermal desorption soil repair system indirectly according to claim 1, it is characterised in that：Also include being arranged on not condensing High-pressure suction fan between gas vent and discharging opening on pipeline.
- 3. thermal desorption soil repair system indirectly according to claim 2, it is characterised in that：Also include being arranged on water process The water circulating pump of device outlet；The water circulating pump is respectively connecting to tower body side condensing water inlet and discharging by pipeline branch road Mouthful.
- 4. thermal desorption soil repair system indirectly according to claim 3, it is characterised in that：Also include being arranged on recirculated water Aerial cooler between pump and tower body side condensing water inlet.
- 5. thermal desorption soil repair system indirectly according to claim 4, it is characterised in that：Also include being arranged on charging aperture With the star gas lock of discharge outlet.
- 6. thermal desorption soil repair system indirectly according to claim 5, it is characterised in that：The scrapper conveyor includes tilting One group of scraper plate on chain, the chain are connected by gear shaft with external motor drive shaft power.
- 7. thermal desorption soil repair system indirectly according to claim 6, it is characterised in that：The scrapper conveyor gear shaft with Packing seal layer is provided between outside electromechanical machine.
- 8. thermal desorption soil repair system indirectly according to claim 7, it is characterised in that：The bottom condensation of the tower body Pipeline is provided with S-shaped water seal between water out and water treatment facilities.
- 9. the indirect thermal desorption soil repair system according to claim any one of 1-8, it is characterised in that：The outside folder Flue gas chimney is provided with above layer heat transfer chamber.
- 10. thermal desorption soil repair system indirectly according to claim 9, it is characterised in that：The outside interlayer heat transfer Room is the plenum chamber provided with alumina silicate heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127402.3U CN207204845U (en) | 2017-09-05 | 2017-09-05 | A kind of thermal desorption soil repair system indirectly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127402.3U CN207204845U (en) | 2017-09-05 | 2017-09-05 | A kind of thermal desorption soil repair system indirectly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365503A (en) * | 2018-11-09 | 2019-02-22 | 天津天绿健科技有限公司 | A kind of soil remediation thermal desorption device |
| CN109675921A (en) * | 2019-01-11 | 2019-04-26 | 浙江亿可利环保科技有限公司 | The continuous direct thermal desorption system of organic polluted soil and its thermal desorption method |
| CN112658021A (en) * | 2020-12-08 | 2021-04-16 | 南京工业大学 | Medium internal circulation enhanced thermal desorption soil remediation reactor and method thereof |
-
2017
- 2017-09-05 CN CN201721127402.3U patent/CN207204845U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365503A (en) * | 2018-11-09 | 2019-02-22 | 天津天绿健科技有限公司 | A kind of soil remediation thermal desorption device |
| CN109675921A (en) * | 2019-01-11 | 2019-04-26 | 浙江亿可利环保科技有限公司 | The continuous direct thermal desorption system of organic polluted soil and its thermal desorption method |
| CN109675921B (en) * | 2019-01-11 | 2023-09-05 | 浙江亿可利环保科技有限公司 | Continuous organic contaminated soil direct thermal desorption system and thermal desorption method thereof |
| CN112658021A (en) * | 2020-12-08 | 2021-04-16 | 南京工业大学 | Medium internal circulation enhanced thermal desorption soil remediation reactor and method thereof |
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