CN107774706A - A kind of mining soil prosthetic device and its restorative procedure based on chemical leaching - Google Patents
A kind of mining soil prosthetic device and its restorative procedure based on chemical leaching Download PDFInfo
- Publication number
- CN107774706A CN107774706A CN201711136322.9A CN201711136322A CN107774706A CN 107774706 A CN107774706 A CN 107774706A CN 201711136322 A CN201711136322 A CN 201711136322A CN 107774706 A CN107774706 A CN 107774706A
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- Prior art keywords
- soil
- elution
- storage device
- leacheate
- liquid
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of mining soil prosthetic device and its restorative procedure based on chemical leaching, it is related to environmental protection technical field.Including soil storage device, pulverizer, multistage screening plant, leacheate storage device, elution device and filter press；The contaminated soil dug out is delivered to pulverizer by soil storage device by elevator；Pulverizer is connected with multistage screening plant；Multistage screening plant is connected with elution device；Leacheate storage device is connected with elution device；Elution device is connected with filter press；Filter press is connected with liquid withdrawal system and dryer respectively；Liquid withdrawal system is connected with leacheate storage device.For the present invention by setting elution device to elute contaminated soil, it is fast that the heavy metal elution in polluted soil removes speed；And by setting filter press to carry out separation of solid and liquid to muddy water, waste liquid is reclaimed by liquid withdrawal system, avoids leacheate secondary pollution, reduces rehabilitation cost.
Description
Technical field
The invention belongs to environmental protection technical field, is filled more particularly to a kind of mining soil reparation based on chemical leaching
Put and its restorative procedure.
Background technology
Soil pollution is one of environmental problem of most serious that current mankind society faces, and contaminated soil remediation turns into ring
Repair the focus in field in border.Existing soil restoring technology mainly includes thermal desorption technology, Electroremediation, biological prosthetic, solid
The reparation of change stabilisation and Soil leaching reparation, wherein Soil leaching restoration of soil polluted by heavy metal have reparation quick, suitable because of it
The characteristics of thorough is answered extensively and repaired by a lot of research and application into actual repair engineering, has wide market empty
Between and development prospect.
At present, the eluent that heavy-metal contaminated soil elution is repaired mainly includes inorganic eluent, chelating agent, surface-active
Agent and compound eluent.
The content of the invention
It is an object of the invention to provide a kind of mining soil prosthetic device and its restorative procedure based on chemical leaching, leads to
Cross setting elution device to elute contaminated soil, have cost cheap, the heavy metal elution in polluted soil removes speed
Degree is fast, and effect is good, applicability is extensive；And by setting filter press to carry out separation of solid and liquid to muddy water, waste liquid is returned by liquid
Receiving apparatus is reclaimed, and avoids leacheate secondary pollution, reduces rehabilitation cost.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions：
The present invention is a kind of mining soil prosthetic device based on chemical leaching, including soil storage device, pulverizer, more
Level screening plant, leacheate storage device, elution device and filter press；The soil storage device will be dug out by elevator
Contaminated soil is delivered to pulverizer；The pulverizer is connected with multistage screening plant；The multistage screening plant and elution device
Connection；The leacheate storage device is connected with elution device；The elution device is connected with filter press；The filter press difference
It is connected with liquid withdrawal system and dryer；The liquid withdrawal system is connected with leacheate storage device.
Further, the multistage screening plant is respectively that 10mm, 1mm, 50 μm of three layers of filter screens form by aperture.
Further, the leacheate storage device conveys switch and transporting velocity by solenoid valve control leacheate, most
The screen cloth on upper strata is used to remove the debris in soil.
Further, the filter press uses plate type pressure filter, and the soil after elution is carried out solid-liquid point by the filter press
From.
A kind of mining soil restorative procedure based on chemical leaching, comprises the following steps：
The first step：Soil pretreatment
Contaminated soil is crushed by pulverizer, and the soil after crushing is delivered to multistage screening plant and carried out
Screening, big the particle diameter soil and debris of the top are removed；
Second step：Chemical leaching
Soil after screening first conveys undermost contaminated soil into elution device, then by the contaminated soil in intermediate layer
Convey into elution device, open magnetic valve and convey the leacheate in leacheate storage device into elution device；Leacheate enters
It is stirred after elution device；Mixing speed is 20-60r/min, mixing time 5-10min；Clockwise stirring with it is inverse
Clockwise stirs alternate run；1-2h is stood after the completion of stirring；
3rd step：Separation of solid and liquid
Soil after stirring is delivered into filter press to be separated soil and waste liquid；Waste liquid is delivered to liquids recovery dress
Put, liquid withdrawal system is recycled waste liquid, and the liquid after processing is transmitted to leacheate storage device for storing and treats two
Secondary use；Soil after elution is delivered into dryer to be dried；
4th step：Soil backfills
The clean soil after drying is transported back original place to be backfilled.
The invention has the advantages that：
The present invention has cost cheap, in polluted soil by setting elution device to elute contaminated soil
Heavy metal elution removal speed is fast, and effect is good, applicability is extensive；And by setting filter press to carry out separation of solid and liquid to muddy water,
Waste liquid is reclaimed by liquid withdrawal system, avoids leacheate secondary pollution, reduces rehabilitation cost.
Certainly, any product for implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, used required for being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation of the prosthetic device of the present invention；
In accompanying drawing, the list of parts representated by each label is as follows：
1- soil storage devices, 2- pulverizers, 3- multilayer screening plants, 4- leacheate storage devices, 5- elution devices, 6-
Filter press, 7- liquid withdrawal systems, 8- dryers.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " perforate ", " on ", " under ", " thickness ", " top ", " in ",
Indicating position or the position relationship such as " length ", " interior ", " surrounding ", it is for only for ease of the description present invention and simplifies description, without
It is that the component of instruction or hint meaning or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.
Refer to shown in Fig. 1, the present invention is a kind of mining soil prosthetic device based on chemical leaching, including soil storage
Device 1, pulverizer 2, multistage screening plant 3, leacheate storage device 4, elution device 5 and filter press 6；Soil storage device 1
The contaminated soil dug out is delivered to by pulverizer 2 by elevator；Pulverizer 2 is connected with multistage screening plant 3；Multi-stage screening fills
3 are put to be connected with elution device 5；Leacheate storage device 4 is connected with elution device 5；Elution device 5 is connected with filter press 6；Press filtration
Machine 6 is connected with liquid withdrawal system 7 and dryer 8 respectively；Liquid withdrawal system 7 is connected with leacheate storage device 4；Elution dress
It is agitating device to put 5.
Wherein, multistage screening plant 3 is respectively that 10mm, 1mm, 50 μm of three layers of filter screens form by aperture.
Wherein, leacheate storage device 4 conveys switch and transporting velocity, the sieve of the superiors by solenoid valve control leacheate
Net is used to remove the debris in soil.
Wherein, filter press 6 uses plate type pressure filter, and the soil after elution is carried out separation of solid and liquid by filter press 6.
A kind of mining soil restorative procedure based on chemical leaching, comprises the following steps：
The first step：Soil pretreatment
Contaminated soil is crushed by pulverizer 2, and the soil after crushing is delivered to multistage screening plant 3 and entered
Row screening, big the particle diameter soil and debris of the top are removed；
Second step：Chemical leaching
Soil after screening first conveys undermost contaminated soil into elution device 5, then by the Polluted Soil in intermediate layer
Earth is conveyed into elution device 5, is opened magnetic valve and is conveyed the leacheate in leacheate storage device 4 into elution device 5；Leacheate
It is stirred after into elution device 5；Mixing speed is 20-60r/min, mixing time 5-10min；Stir clockwise
Alternate run is stirred with counter clockwise direction；1-2h is stood after the completion of stirring；
3rd step：Separation of solid and liquid
Soil after stirring is delivered into filter press 6 to be separated soil and waste liquid；Waste liquid is delivered to liquids recovery
Waste liquid is recycled, the liquid after processing is transmitted to leacheate storage device 4 and deposited by device 7, liquid withdrawal system 7
Treat secondary use；Soil after elution is delivered into dryer 8 to be dried；
4th step：Soil backfills
The clean soil after drying is transported back original place to be backfilled.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
At least one implementation of the present invention is contained in reference to specific features, structure, material or the feature that the embodiment or example describe
In example or example.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.
Moreover, specific features, structure, material or the feature of description can close in any one or more embodiments or example
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed
All details are described, it is only described embodiment also not limit the invention.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (5)
- A kind of 1. mining soil prosthetic device based on chemical leaching, it is characterised in that：Including soil storage device (1), crush Machine (2), multistage screening plant (3), leacheate storage device (4), elution device (5) and filter press (6)；The contaminated soil dug out is delivered to pulverizer (2) by the soil storage device (1) by elevator；The pulverizer (2) it is connected with multistage screening plant (3)；The multistage screening plant (3) is connected with elution device (5)；The leacheate storage device (4) is connected with elution device (5)；The elution device (5) is connected with filter press (6)；Institute Filter press (6) is stated to be connected with liquid withdrawal system (7) and dryer (8) respectively；The liquid withdrawal system (7) is deposited with leacheate Storage device (4) connects.
- 2. a kind of mining soil prosthetic device based on chemical leaching according to claim 1, it is characterised in that described more Level screening plant (3) is respectively that 10mm, 1mm, 50 μm of three layers of filter screens form by aperture.
- A kind of 3. mining soil prosthetic device based on chemical leaching according to claim 1, it is characterised in that the leaching Washing lotion storage device (4) conveys switch and transporting velocity by solenoid valve control leacheate, and the screen cloth of the superiors is used to remove soil Debris in earth.
- A kind of 4. mining soil prosthetic device based on chemical leaching according to claim 1, it is characterised in that the pressure Filter (6) uses plate type pressure filter, and the soil after elution is carried out separation of solid and liquid by the filter press (6).
- A kind of 5. mining soil restorative procedure based on chemical leaching as described in claim 1-4 is any one, it is characterised in that Comprise the following steps：The first step：Soil pretreatmentContaminated soil is crushed by pulverizer (2), and the soil after crushing is delivered to multistage screening plant (3) and entered Row screening, big the particle diameter soil and debris of the top are removed；Second step：Chemical leachingSoil after screening first conveys undermost contaminated soil into elution device (5), then by the contaminated soil in intermediate layer Convey into elution device (5), open magnetic valve and convey the leacheate in leacheate storage device (4) into elution device (5)；Leaching Washing lotion is stirred after entering elution device (5)；Mixing speed is 20-60r/min, mixing time 5-10min；Side clockwise To stirring and counterclockwise stirring alternate run；1-2h is stood after the completion of stirring；3rd step：Separation of solid and liquidSoil after stirring is delivered into filter press (6) to be separated soil and waste liquid；Waste liquid is delivered to liquids recovery dress Put (7), liquid withdrawal system (7) is recycled waste liquid, and the liquid after processing is transmitted to leacheate storage device (4) Secondary use is treated in storage；Soil after elution is delivered into dryer (8) to be dried；4th step：Soil backfillsThe clean soil after drying is transported back original place to be backfilled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711136322.9A CN107774706A (en) | 2017-11-16 | 2017-11-16 | A kind of mining soil prosthetic device and its restorative procedure based on chemical leaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711136322.9A CN107774706A (en) | 2017-11-16 | 2017-11-16 | A kind of mining soil prosthetic device and its restorative procedure based on chemical leaching |
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| Publication Number | Publication Date |
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| CN107774706A true CN107774706A (en) | 2018-03-09 |
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| CN201711136322.9A Pending CN107774706A (en) | 2017-11-16 | 2017-11-16 | A kind of mining soil prosthetic device and its restorative procedure based on chemical leaching |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994064A (en) * | 2018-07-05 | 2018-12-14 | 上海艾库环境工程有限公司 | A kind of soil cleaning equipment and soil remediation technique |
| CN109570213A (en) * | 2019-01-16 | 2019-04-05 | 安徽工程大学 | A kind of mining soil prosthetic device and its restorative procedure based on chemical leaching |
| CN111842456A (en) * | 2020-07-28 | 2020-10-30 | 吉林省环境科学研究院 | Novel soil treatment system |
| CN112317524A (en) * | 2020-11-02 | 2021-02-05 | 北京高能时代环境技术股份有限公司 | Contaminated soil leaching treatment system and method |
| CN113083875A (en) * | 2021-05-11 | 2021-07-09 | 江苏索尔雷米环保科技有限公司 | Soil ectopic chemical leaching treatment system |
| CN113617817A (en) * | 2021-07-09 | 2021-11-09 | 苏州市宏宇环境科技股份有限公司 | Equipment and method for treating tail soil sludge leached from heavy metal contaminated soil |
| CN115228914A (en) * | 2022-07-21 | 2022-10-25 | 李萌 | Utilize citric acid to restore heavy metal pollution's repair system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994064A (en) * | 2018-07-05 | 2018-12-14 | 上海艾库环境工程有限公司 | A kind of soil cleaning equipment and soil remediation technique |
| CN108994064B (en) * | 2018-07-05 | 2020-08-11 | 上海艾库环境工程有限公司 | Soil cleaning equipment and soil remediation process |
| CN109570213A (en) * | 2019-01-16 | 2019-04-05 | 安徽工程大学 | A kind of mining soil prosthetic device and its restorative procedure based on chemical leaching |
| CN109570213B (en) * | 2019-01-16 | 2020-10-16 | 安徽工程大学 | Mining area soil remediation device based on chemical leaching and remediation method thereof |
| CN111842456A (en) * | 2020-07-28 | 2020-10-30 | 吉林省环境科学研究院 | Novel soil treatment system |
| CN112317524A (en) * | 2020-11-02 | 2021-02-05 | 北京高能时代环境技术股份有限公司 | Contaminated soil leaching treatment system and method |
| CN113083875A (en) * | 2021-05-11 | 2021-07-09 | 江苏索尔雷米环保科技有限公司 | Soil ectopic chemical leaching treatment system |
| CN113617817A (en) * | 2021-07-09 | 2021-11-09 | 苏州市宏宇环境科技股份有限公司 | Equipment and method for treating tail soil sludge leached from heavy metal contaminated soil |
| CN113617817B (en) * | 2021-07-09 | 2022-07-12 | 苏州市宏宇环境科技股份有限公司 | Equipment and method for treating tail soil sludge leached from heavy metal contaminated soil |
| CN115228914A (en) * | 2022-07-21 | 2022-10-25 | 李萌 | Utilize citric acid to restore heavy metal pollution's repair system |
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Application publication date: 20180309 |