CN204148232U - A kind of heavy-metal contaminated soil elution circuit - Google Patents
A kind of heavy-metal contaminated soil elution circuit Download PDFInfo
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- CN204148232U CN204148232U CN201420615090.0U CN201420615090U CN204148232U CN 204148232 U CN204148232 U CN 204148232U CN 201420615090 U CN201420615090 U CN 201420615090U CN 204148232 U CN204148232 U CN 204148232U
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Abstract
The utility model provides a kind of heavy-metal contaminated soil elution circuit, comprise conveying mechanism, hydraulic vibration is sieved, hydrocyclone, pond with slurry, flotation cell, sand dewatering screen, thin plate clarifier, storage cistern and filter press, the entrance that outlet and the hydraulic vibration of conveying mechanism are sieved is connected, hydraulic vibration sieve top is provided with shower nozzle, hydraulic vibration sieve outlet at bottom is connected with hydrocyclone entrance, the upper outlet of hydrocyclone is connected with thin plate clarifier top, hydrocyclone lower part outlet is connected with pond with slurry entrance, pond with slurry outlet is connected with flotation cell entrance, flotation cell upper outlet is connected with thin plate clarifier top, flotation cell lower part outlet is connected with sand dewatering screen entrance, water out bottom sand dewatering screen is connected with storage cistern entrance, the water out of thin plate clarifier is connected with storage cistern entrance, the mud outlet of thin plate clarifier is connected with filter press entrance.The utility model can effectively realize heavy-metal contaminated soil classification, be separated, subtract appearance, decrement treatment and recycling.
Description
Technical field
The utility model relates to a kind of heavy-metal contaminated soil elution circuit.
Background technology
Developing rapidly and the frequent increase of mankind's activity in recent years along with industry, a large amount of waste water containing heavy metal, waste residue are discharged in soil after without strict high-level process.Due to high cumulative bad, the feature such as disguise and bio-refractory of heavy metal, not only cause a large amount of soils to cultivate and lie on the table, but also by food chain effect, the health of human body can be jeopardized.Heavy metal contaminated soil especially Industrial Wasteland serious pollution soil carries out repairing and administering becoming environmental problem urgently to be resolved hurrily.
The improvement of heavy-metal contaminated soil that is that research both at home and abroad at present relates to and that be applied in actual process mainly contains solidification and removes 2 kinds of approach.In recent years, different control measures and method is developed around these two kinds of approach, as solidification, reduction, agricultural regulation and control, biological prosthetic and phytoremediation etc., but these methods have not thorough, the consuming time length of process, easily produce high malicious mesostate and the shortcoming such as to be of limited application, and thus not yet apply in engineering.In current engineering, main method has following several: method of improving the soil, electro reclamation method, heat treating process, sparkling technology and soil washing.Compared with soil washing, method of improving the soil, electro reclamation method, heat treating process and vitrification or there is secondary pollution or the scope of application is little or expensive, all have comparatively obviously wait not enough.
Hydrocyclone is a kind of separation equipment of widely used liquid non-homogeneous mixture, and it can complete the operation such as washing, liquid phase desanding of concentrated, solid particle of the classification of solid particle and sorting, the clarification of liquid, slip.Hydrocyclone utilizes the efficient separation equipment of centrifugal force separate different densities mixture, have that structure is simple, equipment investment is few, operating cost is low, install and easy to operate, volume is little, disposal ability is large, take up room the advantage such as little, higher shear power is produced in hydrocyclone, intergranular reunion be can effectively destroy, classification and the washing of solid phase particles are conducive to.
Froth flotation technology is a kind of new separation technology found 20 beginnings of the century, has the advantages that equipment is simple, operating cost is low, operation continuously, does not need HTHP, has unique advantage to separating low concentration component.Froth flotation is especially applicable to the separating treatment of less than 50 μm thin particulate matters.Meanwhile, according to the experience of soil flotation, low at least one the order of magnitude of dose ratio Soil leaching required dosage of surfactant needed for flotation.
Summary of the invention
Problem to be solved in the utility model be to provide a kind of process thorough, consuming time short, high malicious mesostate can not be produced, the heavy-metal contaminated soil elution circuit of secondary pollution can be avoided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of heavy-metal contaminated soil elution circuit, it is characterized in that: comprise conveying mechanism (1), hydraulic vibration sieve (2), hydrocyclone (3), pond with slurry (4), flotation cell (5), sand dewatering screen (6), thin plate clarifier (7), storage cistern (8) and filter press (9), (2) are sieved in the outlet of described conveying mechanism (1) entrance with described hydraulic vibration is connected, described hydraulic vibration sieve (2) top is provided with shower nozzle, described hydraulic vibration sieve (2) outlet at bottom is connected with the entrance of described hydrocyclone (3), the upper outlet of described hydrocyclone (3) is connected with described thin plate clarifier (7) top, described hydrocyclone (3) lower part outlet is connected with described pond with slurry (4) entrance, described pond with slurry (4) outlet is connected with described flotation cell (5) entrance, the upper outlet of described flotation cell (5) is connected with described thin plate clarifier (7) top, the lower part outlet of described flotation cell (5) is connected with described sand dewatering screen (6) entrance, the water out of described sand dewatering screen (6) bottom is connected with storage cistern (8) entrance, the water out of described thin plate clarifier (7) is connected with described storage cistern (8) entrance, the mud outlet of described thin plate clarifier (7) is connected with filter press (9) entrance.
Preferably, described conveying mechanism (1) is belt conveyor.
Preferably, the shower nozzle that described hydraulic vibration sieve (2) top is arranged is high-pressure water nozzle.
Preferably, described filter press (9) is plate and frame filter press.
Further, described storage cistern (8) is connected with described shower nozzle by pipeline, pump.
Further, described hydraulic vibration sieve (2) outlet at bottom is connected with the entrance of described hydrocyclone (3) by pipeline, pump, and the upper outlet of described hydrocyclone (3) is connected with described thin plate clarifier (7) top by pipeline.
Further, the upper outlet of described flotation cell (5) is connected with described thin plate clarifier (7) top by pipeline, and the lower part outlet of described flotation cell (5) is connected with described sand dewatering screen (6) entrance by pipeline, pump.
Further, the water out of described sand dewatering screen (6) bottom is connected with storage cistern (8) entrance by pipeline, pump.
Further, the water out of described thin plate clarifier (7) is connected with described storage cistern (8) entrance by pipeline, pump, and the mud outlet of described thin plate clarifier (7) is connected with filter press (9) entrance by pump, pipeline.
The advantage that the utility model has and good effect are: owing to adopting technique scheme, the soil bulky grain thing such as gravel, the grains of sand after screening and the remaining fine sand toxicity needing further dystopy to dispose significantly reduce, building materials, fill material or direct landfill can be directly used in, reach the object that changing waste into resources utilizes; The thin mud of enriching heavy metal and solution through the process of thin plate clarifier and after filter-press dehydration volume significantly reduce, hazardous waste landfill landfill stabilization can be sent or send garbage burning factory process; The utility model can effectively realize heavy-metal contaminated soil classification, be separated, subtract appearance, decrement treatment and recycling.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
In figure:
1, conveying mechanism 2, hydraulic vibration sieve 3, hydrocyclone
4, pond 5 with slurry, flotation cell 6, sand dewatering screen
7, thin plate clarifier 8, storage cistern 9, filter press
Detailed description of the invention
In order to better understand the utility model, below in conjunction with specific embodiments and the drawings, the utility model is conducted further description.
The utility model provides a kind of heavy-metal contaminated soil elution circuit, as shown in Figure 1, comprises conveying mechanism 1, hydraulic vibration sieve 2, hydrocyclone 3, pond 4 with slurry, flotation cell 5, sand dewatering screen 6, thin plate clarifier 7, storage cistern 8 and filter press 9, the entrance that outlet and the hydraulic vibration of conveying mechanism 1 sieve 2 is connected, and hydraulic vibration is sieved 2 outlet at bottoms and passed through pipeline, pump is connected with the entrance of hydrocyclone 3, the upper outlet of hydrocyclone 3 is connected with thin plate clarifier 7 top by pipeline, hydrocyclone 3 lower part outlet is connected with pond 4 with slurry entrance, pond 4 with slurry exports and is connected with flotation cell 5 entrance, the upper outlet of flotation cell 5 is connected with thin plate clarifier 7 top by pipeline, and the lower part outlet of flotation cell 5 passes through pipeline, pump is connected with sand dewatering screen 6 entrance, and the water out bottom sand dewatering screen 6 passes through pipeline, pump is connected with storage cistern 8 entrance, and the water out of thin plate clarifier 7 passes through pipeline, pump is connected with storage cistern 8 entrance, and pump is passed through in the mud outlet of thin plate clarifier 7, pipeline is connected with filter press 9 entrance.In the present embodiment, conveying mechanism 1 is belt conveyor, and the shower nozzle arranged above hydraulic vibration sieve 2 is high-pressure water nozzle, and filter press 9 is plate and frame filter press.
The course of work of this example: the heavy-metal contaminated soil of excavation is sent into hydraulic vibration sieve 2 through conveyer 1, wet sieving is carried out with water under high pressure spray, isolate gravel and the grains of sand of particle diameter 2mm ~ 50mm, gravel and grains of sand building materials or backfill after dewatering, multi-stage water power cyclone 3 sent into by the slush pump being less than 2mm, hydraulic cyclone is separated silt particle further, very tiny earth and water send into thin plate clarifier 7, thicker silt particle sends into pond 4 with slurry, in pond 4 with slurry, add surfactant mixture simultaneously, the mud prepared is sent into flotation cell 5 and is carried out FLOTATION SEPARATION, floating foam is collected to be sent to and is sent into thin plate clarifier 7, sinking bed load is sent into sand dewatering screen 6 and is dewatered, bed load after dehydration can be used as backfilling material, the water deviate from sends storage cistern 8 back to, polymer is added in thin plate clarifier 7, heavy metal contaminants is precipitated, concentrate and become mud cake with filter press 9 press filtration, mud cake carries out innoxious landfill or send garbage burning factory process, the water that thin plate clarifier 7 overflows delivers to storage cistern 8 reuse, the water of storage cistern 8 is for high-pressure water nozzle on hydraulic vibration sieve 2.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (9)
1. a heavy-metal contaminated soil elution circuit, it is characterized in that: comprise conveying mechanism (1), hydraulic vibration sieve (2), hydrocyclone (3), pond with slurry (4), flotation cell (5), sand dewatering screen (6), thin plate clarifier (7), storage cistern (8) and filter press (9), (2) are sieved in the outlet of described conveying mechanism (1) entrance with described hydraulic vibration is connected, described hydraulic vibration sieve (2) top is provided with shower nozzle, described hydraulic vibration sieve (2) outlet at bottom is connected with the entrance of described hydrocyclone (3), the upper outlet of described hydrocyclone (3) is connected with described thin plate clarifier (7) top, described hydrocyclone (3) lower part outlet is connected with described pond with slurry (4) entrance, described pond with slurry (4) outlet is connected with described flotation cell (5) entrance, the upper outlet of described flotation cell (5) is connected with described thin plate clarifier (7) top, the lower part outlet of described flotation cell (5) is connected with described sand dewatering screen (6) entrance, the water out of described sand dewatering screen (6) bottom is connected with storage cistern (8) entrance, the water out of described thin plate clarifier (7) is connected with described storage cistern (8) entrance, the mud outlet of described thin plate clarifier (7) is connected with filter press (9) entrance.
2. heavy-metal contaminated soil elution circuit according to claim 1, is characterized in that: described conveying mechanism (1) is belt conveyor.
3. heavy-metal contaminated soil elution circuit according to claim 1 and 2, is characterized in that: the shower nozzle that described hydraulic vibration sieve (2) top is arranged is high-pressure water nozzle.
4. heavy-metal contaminated soil elution circuit according to claim 3, is characterized in that: described filter press (9) is plate and frame filter press.
5. the heavy-metal contaminated soil elution circuit according to any one of claim 1,2 or 4, is characterized in that: described storage cistern (8) is connected with described shower nozzle by pipeline, pump.
6. heavy-metal contaminated soil elution circuit according to claim 5, it is characterized in that: described hydraulic vibration sieve (2) outlet at bottom is connected with the entrance of described hydrocyclone (3) by pipeline, pump, and the upper outlet of described hydrocyclone (3) is connected with described thin plate clarifier (7) top by pipeline.
7. the heavy-metal contaminated soil elution circuit according to any one of claim 1,2,4 or 6, it is characterized in that: the upper outlet of described flotation cell (5) is connected with described thin plate clarifier (7) top by pipeline, the lower part outlet of described flotation cell (5) is connected with described sand dewatering screen (6) entrance by pipeline, pump.
8. heavy-metal contaminated soil elution circuit according to claim 7, is characterized in that: the water out of described sand dewatering screen (6) bottom is connected with storage cistern (8) entrance by pipeline, pump.
9. the heavy-metal contaminated soil elution circuit according to any one of claim 1,2,4,6 or 8, it is characterized in that: the water out of described thin plate clarifier (7) is connected with described storage cistern (8) entrance by pipeline, pump, the mud outlet of described thin plate clarifier (7) is connected with filter press (9) entrance by pump, pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420615090.0U CN204148232U (en) | 2014-10-22 | 2014-10-22 | A kind of heavy-metal contaminated soil elution circuit |
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| CN201420615090.0U CN204148232U (en) | 2014-10-22 | 2014-10-22 | A kind of heavy-metal contaminated soil elution circuit |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984986A (en) * | 2015-06-04 | 2015-10-21 | 中山大学 | Rapid environment-friendly heavy soil metal pollution treatment and purification system |
| CN105618281A (en) * | 2016-01-25 | 2016-06-01 | 中山大学 | Sorting method and device for contaminated soil particles with different particle sizes |
| CN105728448A (en) * | 2015-11-24 | 2016-07-06 | 北京建工环境修复股份有限公司 | Eluting and vibration screening device for contaminated soil remediation |
| CN105772497A (en) * | 2016-04-12 | 2016-07-20 | 上海格林曼环境技术有限公司 | Soil ectopic leaching restoring complete equipment |
| CN107262519A (en) * | 2016-04-06 | 2017-10-20 | 韩电原子力燃料株式会社 | Radioactive pollution soil sanitation system |
| CN111167845A (en) * | 2020-02-27 | 2020-05-19 | 广州南新和科技有限公司 | Pollute soil with self-interacting flotation separation prosthetic devices |
| TWI729883B (en) * | 2020-07-16 | 2021-06-01 | 中石化綠能科技股份有限公司 | Purification system for heavy metal and chlorine-containing contaminated soil |
| CN113000586A (en) * | 2021-02-05 | 2021-06-22 | 广州市第一市政工程有限公司 | Be used for prosthetic drip washing device of soil |
-
2014
- 2014-10-22 CN CN201420615090.0U patent/CN204148232U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984986A (en) * | 2015-06-04 | 2015-10-21 | 中山大学 | Rapid environment-friendly heavy soil metal pollution treatment and purification system |
| CN104984986B (en) * | 2015-06-04 | 2018-08-24 | 中山大学 | A kind of improvement heavy metal pollution of soil purification system |
| CN105728448A (en) * | 2015-11-24 | 2016-07-06 | 北京建工环境修复股份有限公司 | Eluting and vibration screening device for contaminated soil remediation |
| CN105618281A (en) * | 2016-01-25 | 2016-06-01 | 中山大学 | Sorting method and device for contaminated soil particles with different particle sizes |
| CN107262519A (en) * | 2016-04-06 | 2017-10-20 | 韩电原子力燃料株式会社 | Radioactive pollution soil sanitation system |
| CN105772497A (en) * | 2016-04-12 | 2016-07-20 | 上海格林曼环境技术有限公司 | Soil ectopic leaching restoring complete equipment |
| CN105772497B (en) * | 2016-04-12 | 2019-07-30 | 上海格林曼环境技术有限公司 | A kind of soil heterotopic elution reparation complete set of equipments |
| CN111167845A (en) * | 2020-02-27 | 2020-05-19 | 广州南新和科技有限公司 | Pollute soil with self-interacting flotation separation prosthetic devices |
| CN111167845B (en) * | 2020-02-27 | 2020-11-10 | 泉州奔众电器有限公司 | Pollute soil with self-interacting flotation separation prosthetic devices |
| TWI729883B (en) * | 2020-07-16 | 2021-06-01 | 中石化綠能科技股份有限公司 | Purification system for heavy metal and chlorine-containing contaminated soil |
| CN113000586A (en) * | 2021-02-05 | 2021-06-22 | 广州市第一市政工程有限公司 | Be used for prosthetic drip washing device of soil |
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