CN209577725U - A kind of screening plant suitable for contaminated soil elution - Google Patents
A kind of screening plant suitable for contaminated soil elution Download PDFInfo
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- CN209577725U CN209577725U CN201920123093.5U CN201920123093U CN209577725U CN 209577725 U CN209577725 U CN 209577725U CN 201920123093 U CN201920123093 U CN 201920123093U CN 209577725 U CN209577725 U CN 209577725U
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Abstract
The utility model discloses a kind of screening plants suitable for contaminated soil elution, including feeding pipe, mixing chamber, trunnion and diffuser, feeding pipe is connect with mixing chamber, mixing chamber top is equipped with air inlet, mixing chamber is connect by trunnion with diffuser, diffuser connects pan feeding buffer, pan feeding buffer is connect with vibrating screen screen frame, vibrating screen screen frame top is connect with eccentric block and vibrating motor, vibrating screen screen frame top is equipped with spray head, Vibration Screen frame bottom is connect with compass screen surface, material collection storehouse is arranged below in vibrating screen screen frame, vibrating screen screen frame is connect by spring with bracket.This equipment combines the characteristics of vibrating screen, it enhances it and elutes isolated effect to pollutant in soil, have the advantages that simple structure and reasonable design, strong operability, to realize that the elution repairing and treating of heavy metal, semi-volatile organic matter and difficult VOCs-contaminated Soils is laid a good foundation.
Description
Technical field
The utility model relates to soil remediation fields, set more particularly to a kind of screening suitable for contaminated soil elution
It is standby.
Background technique
With the continuous quickening of China's industrialization and urbanization process, Soil Environmental Pollution problem is increasingly severe.Currently, one
The layout of a little old industrial city is adjusted, and the factory floor that heavy industry plant area is moved from city to outer suburbs, after resettlement is big
Pollution of the part by the waste water,waste gas and industrial residue containing heavy metal contains heavy metal, radioactive metal object in contaminated soil
Matter, organic pollutant etc..The pollutant in soil residence time is long, is not easy to be dropped naturally by the biology of nature and microorganism completely
Solution constitutes threat to Sustainable Use of Soil Resources and agricultural product ecological safety, is badly in need of carrying out repairing and treating to contaminated soil.
Soil leaching recovery technique is suitable for heavy metal, semi-volatile organic matter and difficult VOCs-contaminated Soils,
Soil leaching can quickly remove the pollutant in soil, and the improvement of high concentration dirt soil is completed in the short time, and realize Polluted Soil
The minimizing of earth is handled, and has the advantages that expense relative moderate, process range are wide, remediation efficiency is high.Soil leaching repair process
In can using screening plant to contaminated soil elute be classified, by above coarse granule fine fraction soil and pollutant elution remove,
Clean coarse-grained soil is obtained, realizes the minimizing of contaminated soil.A kind of heavy-metal contaminated soil elution circuit of Zhang Jinghui:
China, proposition carries out elution point with contaminated soil of the vibrating screen to 50-2mm in 201420615090.0 [P] .2015-02-11.
Grade.
The author carries out elution classification to heavy metal and semi-volatile organic matter contaminated soil using the above method, due to pollution
Object adheres to closely on soil, and after conventional vibration sieve is to contaminated soil elution, some of the contaminants are still enriched on soil, coarse granule
Reparation target is not achieved after elution classification in soil.
Summary of the invention
In order to improve the effect of contaminated soil elution screening, the utility model provides a kind of suitable for contaminated soil elution
Screening plant.
A kind of screening plant suitable for contaminated soil elution of the utility model, including feeding pipe (1), it is characterised in that
Feeding pipe (1) is connect with mixing chamber (2), and mixing chamber (2) top is equipped with air inlet (3), and mixing chamber (2) is by trunnion (4) and expands
Separate tube (5) connection, diffuser (5) connect pan feeding buffer (6), and pan feeding buffer (6) is connect with vibrating screen screen frame (7), vibrate
Sieve screen frame (7) top is connect with eccentric block (8) and vibrating motor (9), and vibrating screen screen frame (7) top is equipped with spray head (10), vibration
Dynamic sieve screen frame (7) bottom is connect with compass screen surface (11), and material collection storehouse (12), vibrating screen screen frame is arranged below in vibrating screen screen frame (7)
(7) it is connect by spring (13) with bracket (14).
A kind of screening plant suitable for contaminated soil elution, which is characterized in that the outer diameter of the feeding pipe (1)
Identical as the internal diameter of mixing chamber (2) front end, feeding pipe (1) and mixing chamber (2) pass through flanged joint.
Described a kind of screening plant suitable for contaminated soil elution, which is characterized in that the length of the trunnion (4) is
7 times of trunnion (4) diameter.
A kind of screening plant suitable for contaminated soil elution, which is characterized in that the diffusion of the diffuser (5)
Angle is 8 °.
The characteristics of the utility model device combination vibrating screen, enhances it and elutes isolated effect to pollutant in soil,
Have the advantages that simple structure and reasonable design, strong operability, to realize heavy metal, semi-volatile organic matter and difficult volatility
The elution repairing and treating of organic material contaminated soil is laid a good foundation.
Detailed description of the invention
Attached drawing 1 is a kind of screening plant structural schematic diagram suitable for contaminated soil elution of the utility model.
Attached drawing 2 is the intensifying device structure chart of the utility model.
In attached drawing 1: 1-feeding pipe；2-one mixing chamber；3-air intake ducts；4-trunnions；5-diffusers；6-pan feedings buffering
Device；7-screen frames；8-eccentric blocks；9-vibrating motors；10-spray heads；11-sieve plates；12-material collection buckets；13-springs；
14-brackets.
Specific embodiment
Specific embodiment of the present utility model is as shown in the picture: feeding pipe (1) and mixing chamber (2) pass through flanged joint,
Mixing chamber (2) top is equipped with air inlet (3), and mixing chamber (2) is connect by trunnion (4) with diffuser (5), and diffuser (5) passes through
Welding is connect with pan feeding buffer (6), and pan feeding buffer (6) is welded on vibrating screen screen frame (7), vibrating screen screen frame (7) top
Eccentric block (8) and vibrating motor (9) are installed, vibrating screen screen frame (7) top is equipped with spray head (10), vibrating screen screen frame (7) bottom
Polyurethane sieve (11) are installed in portion, and vibrating screen screen frame (7) is arranged below material collection storehouse (12), and vibrating screen screen frame (7) passes through bullet
Spring (13) is connect with bracket (14).
The specific work process of the screening ELUTION METHOD of the utility model are as follows:
A. after contaminated soil impregnates, mud is fed feeding pipe (1) with 0.2MPa pressure with pump, mud is through feeding pipe (1)
Into after mixing chamber (2), flow section is shunk, and mud velocity increases, and the pressure at flow section reduces, and air is through air intake duct
(3) enter mixing chamber (2) mixed with mud, and with " cavitation " bubble from soil particle surface generate, formed mud and
The mixture of bubble；
B. it after mud and bubble mixture enter trunnion (4), is further mixed under turbulent flow, and enters diffuser (5)；Mud
After slurry enters diffuser (5) with bubble mixture, the flow velocity of mud and bubble mixture is reduced, and the pressure of fluid increases, mud
Increase with the relative velocity of bubble, the shearing force that bubble receives also increases with it, and the shearing force suffered by the bubble is greater than its surface and opens
When power, bubble ruptures；The impact force that the generation of " cavitation " bubble and bubbles burst generate, enhances pollutant from soil
The removing of grain；
C. mud enters pan feeding buffer (6) by diffuser (5) with bubble mixture, and mud is sieved through shaker vibration,
Fine grained less than sieve pore enters material collection bucket (12), and the bulky grain on sieve enters cleaning material after spray head (10) are cleaned
Working area, the final minimizing for realizing contaminated soil.
The foregoing is merely preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, Ren Hegen
According to simple modification, change or the replacement made within the scope of the technology of the present invention, protection scope of the present invention is still fallen within.
Claims (4)
1. a kind of screening plant suitable for contaminated soil elution, including feeding pipe (1), it is characterised in that feeding pipe (1) and mixed
Room (2) connection is closed, mixing chamber (2) top is equipped with air inlet (3), and mixing chamber (2) is connect by trunnion (4) with diffuser (5), expands
Separate tube (5) connects pan feeding buffer (6), and pan feeding buffer (6) connect with vibrating screen screen frame (7), vibrating screen screen frame (7) top and
Eccentric block (8) and vibrating motor (9) connection, vibrating screen screen frame (7) top are equipped with spray head (10), vibrating screen screen frame (7) bottom
It is connect with compass screen surface (11), vibrating screen screen frame (7) is arranged below material collection storehouse (12), and vibrating screen screen frame (7) passes through spring (13)
It is connect with bracket (14).
2. a kind of screening plant suitable for contaminated soil elution according to claim 1, which is characterized in that the pan feeding
The outer diameter for managing (1) is identical as the internal diameter of mixing chamber (2) front end, and feeding pipe (1) and mixing chamber (2) pass through flanged joint.
3. a kind of screening plant suitable for contaminated soil elution according to claim 1, which is characterized in that the trunnion
(4) length is 7 times of trunnion (4) diameter.
4. a kind of screening plant suitable for contaminated soil elution according to claim 1, which is characterized in that the diffusion
The angle of flare for managing (5) is 8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920123093.5U CN209577725U (en) | 2019-01-24 | 2019-01-24 | A kind of screening plant suitable for contaminated soil elution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920123093.5U CN209577725U (en) | 2019-01-24 | 2019-01-24 | A kind of screening plant suitable for contaminated soil elution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209577725U true CN209577725U (en) | 2019-11-05 |
Family
ID=68380362
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920123093.5U Active CN209577725U (en) | 2019-01-24 | 2019-01-24 | A kind of screening plant suitable for contaminated soil elution |
Country Status (1)
| Country | Link |
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| CN (1) | CN209577725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487698A (en) * | 2022-09-01 | 2022-12-20 | 同济大学 | High-pressure vortex high-efficiency separation method for pollutants in soil |
-
2019
- 2019-01-24 CN CN201920123093.5U patent/CN209577725U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487698A (en) * | 2022-09-01 | 2022-12-20 | 同济大学 | High-pressure vortex high-efficiency separation method for pollutants in soil |
| CN115487698B (en) * | 2022-09-01 | 2024-05-03 | 同济大学 | High-pressure vortex efficient separation method for pollutants in soil |
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