CN110153165A - A kind of elution equipment of heavy-metal contaminated soil - Google Patents
A kind of elution equipment of heavy-metal contaminated soil Download PDFInfo
- Publication number
- CN110153165A CN110153165A CN201910587236.2A CN201910587236A CN110153165A CN 110153165 A CN110153165 A CN 110153165A CN 201910587236 A CN201910587236 A CN 201910587236A CN 110153165 A CN110153165 A CN 110153165A
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- Prior art keywords
- soil
- mud
- screen
- dustless
- water
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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
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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 present invention provides a kind of elution prosthetic appliance for heavy-metal contaminated soil, it is characterized by: existing elution equipment is overcome to be unable to satisfy the determination of the soil properties Soil leaching demand such as clay, silty clay, substantially reduce equipment failure rate, realize that equipment multistage assembles, mobility is strong, maintenance speed is fast, and substitutability is strong, can efficiently complete the elution work of various soil properties.The problem to be solved in the present invention be overcome existing processing equipment there are the drawbacks of, design a kind of contaminated soil suitable for various soil properties and elute equipment, efficiently rapidly solves the problems, such as that heavy-metal contaminated soil is repaired, and recycle after capable of achieving the purpose that reparation.
Description
Technical field
Present invention is mainly used for heavy-metal contaminated soils, good for the removal effect of heavy metal, are suitable for fairly large
Industrial application, belong to technical field of soil remediation.
Background technique
Soil pollutant is broadly divided into inorganic pollution and organic pollutant two major classes.Inorganic pollution mainly includes
Acid, alkali, heavy metal, salt, radioactive element caesium, the compound of strontium, containing arsenic, selenium, compound of fluorine etc..Organic pollutant is main
Including organic agricultural chemicals, phenols, cyanide, petroleum, synthetic detergent and by municipal sewage, sludge and barnyard manure bring nocuousness it is micro-
Biology etc..When harmful substance is excessive in soil, more than the self-purification capacity of soil, soil constitution, structure and function will be caused
Variation, microbial activities is suppressed, harmful substance or its decomposition product in the soil gradually accumulation by " soil → plant →
Human body ", or be absorbed by the body indirectly by " soil → water → human body ", reach the degree being detrimental to health, is exactly soil dirt
Dye.
The soil of heavy metal pollution has concealment strong, and harmfulness is big, and incubation period is long, and the injury generated is irreversible
The features such as.Heavy metal can eventually enter into human body by the enrichment of food chain, endanger human health.In addition, China is available
Land resource shortage, the soil resource that soil pollution allows to utilize tail off, and greatly affected the agricultural production in China.Soil
The improvement time of earth pollution is very long, and the harm generated is irreversible, seriously affects the sustainable development of China's economy, therefore right
The improvement of heavy metal-polluted soil and reparation are extremely urgent.
The reparation of heavy metal in soil is divided into: curing/stabilizing method, same to position/dystopy elution method, physical method, and chemistry is also
Original, phytoremediation, repairing method of microorganism etc..Soil washing because its simple process, it is economical the features such as become it is a kind of efficiently
, the chemical repair method that can be worked in a short time to heavy metal in soil.
However existing processing equipment is directed to the design of the soil properties such as sand, silty sand mostly, and it is glutinous not to be able to satisfy clay, silty
The demand of the soil properties Soil leaching such as soil, and existing processing equipment high failure rate, equipment repair rate are low, cannot efficiently complete various soil
The elution work of matter.The problem to be solved in the present invention be overcome existing processing equipment there are the drawbacks of, design it is a kind of be suitable for it is each
The contaminated soil of kind of soil property elutes equipment, efficiently rapidly solves the problems, such as heavy-metal contaminated soil reparation, and after capable of reaching reparation
The purpose of recycling.
Summary of the invention
The purpose of the present invention is what is be accomplished by the following way:
A kind of heavy-metal contaminated soil elution equipment, including dustless broken and screening system, intelligent elution circuit, filters pressing system
System etc.:
The dustless broken and screening system, the system by hopper, vibrosieve batcher, low noise jaw crusher with
Dustless hammer mill etc. is constituted.Material crushes material to 100mm material below after batcher enters jaw crusher
Afterwards, it is sent by dustless conveyer to hammer mill, will be contained in soil during material transferring by strong magnetic separation equipment
Metal is removed recycling.Material enters colleges and universities' Complex-frequency screen after impact crusher is handled and is screened, and big material is by delivery system
System reenters impact crusher and carries out tertiary crushing.
The dustless broken and screening system is a closed system, and unit, conveyer belt are equal to fortune in confined space
Row is realized dustless broken.
The vibrosieve batcher has assembled vibrating screen, straight line shaker, rotary screen, banana screen, fixed strip-type screen, roller bearing
The advantages of numerous screening machines such as sieve, discaling roll sieve, forms.
The intelligent elution circuit, the system are made of screwed washing mud machine, thin mud recovery system.
The screwed washing mud machine is a kind of effective powerful stirring washing appliance, has big, the clean rate for the treatment of capacity high excellent
Point.Screwed washing mud machine running part is isolated with water, mud, and failure rate substantially reduces.Utilize water conservancy impact and the dual work of propeller
With promoting each partial size soil property in soil to be broken up, realize the abundant washing of contaminated soil.
The thin mud recovery system is made of motor, Pulp pump, cyclone, high-frequency dewatering screen, sludge concentrating pot etc..Mud
Aqueous mixtures are delivered to cyclone through Transmission system, and after cyclone washs, muddy water reaches high-frequency dewatering screen after sand settling mouth, real
Existing thin mud is efficiently separated with water, and a small amount of fine sand, mud etc. return to sludge concentrating pot, when sludge condensation jar liquid surface is excessively high, through discharge port
Discharge.By change revolution speed, the cleaning for changing concentration of hydraulic mixture, adjusting overflow water, replacing the mouth realization contaminated soil that shakes out, take off
Water and classification.
The high-frequency dewatering screen, vibrator are arranged in the top of screen box center of gravity, make screen(ing) machine motion profile in feeding end
For ellipse, middle part is circle, and discharge end is still oval, i.e., oval-circle-elliptical movement.The transverse and compass screen surface of feeding end
Angle it is at an acute angle, the angle of discharge end transverse and compass screen surface makes material be greater than in the movement velocity of feeding end at obtuse angle
Expect the movement velocity at end, guarantees that material can be loose quickly in the feeding end of compass screen surface, the bed of material is relatively thin, so that fine be made to divide as early as possible
Layer contacts compass screen surface and sieves thoroughly；And discharge end material speed is small, can extend dewatering time of the material on compass screen surface, and then improves de-
Water effect.
The press filteration system is belt filters pressing, and the system is by Pulp pump, belt filter press, flushing pump, air compressor machine, medicament
Pump, the composition such as fresh water pump.This technique is extracted out clarifier sludge by Pulp pump, is pumped to belt filters pressing after flocculant flocculation is added
It is dehydrated on machine.
Effective effect of the invention:
Dustless broken and screening system is, it can be achieved that effective broken and screening, the crushing and screening partial size of contaminated soil are
100mm can lay the foundation for the efficient operation of subsequent intelligent elution circuit.
Intelligent elution circuit can realize the abundant elution of soil after crushing, and the heavy metal pollutants in soil is enable to have
Effect washes out, and realizes the removal of polluter.Intelligent elution circuit is controlled by PLC program, meanwhile, increase network remote check and
Control, data storage comparison, tendency chart check etc., that system throughput real-time control, value is monitored and deposits online to dedusting
It stores up and passes through mobile phone and computer monitoring.To guarantee that pollutant removal can carry out multistage group of multiple groups intelligence elution circuit
It closes.
Press filteration system mainly carries out the dewatering work of soil after elution, selects improvement version belt filter press, high with intensity,
Good water permeability, be not easy to plug, easy cleaning, it is easy to assemble the advantages that.
Detailed description of the invention
Fig. 1 is dustless broken and screening system of the invention；
Fig. 2 is intelligent elution circuit of the invention；
Fig. 3 is press filteration system of the invention；
Fig. 4 is whole elution circuit of the invention；
1- hopper；2- vibrosieve batcher；3- jaw crusher；4- iron remover；5- deduster；6- Complex-frequency screen；7-
Transmission belt；8- forklift；9- washes mud machine；10- low frequency dewatering screen；11- cyclone；12- Pulp pump；13- high-frequency dewatering screen；14- is useless
Pond；15- waste water treatment system；16- belt filter press；17- concentration tank；18- slush pump；19- circulating water pool；20- water pump；
The stockyard 21-；22- ring hammers crusher into shape
Specific embodiment:
In order to enable those skilled in the art to better understand the solution of the present invention, combined with specific embodiments below furtherly
Bright technical solution of the present invention.
Embodiment 1
The integrated artistic process of present embodiment: firstly, contaminated soil or bed mud are dug out from pollution scene,
Then 1- hopper is entered by 8- forklift etc., contaminated soil from hopper through 7- belt transport to 2- vibrosieve batcher,
After vibrosieve just break, further it is crushed into 3- jaw crusher, after crushing, contaminated soil is through 7- skin
Band transmits, and removes metallics remaining in soil via 4- iron remover in transmit process.It is further through 22- ring hammer crusher
Enter 6- Complex-frequency screen after broken, carries out the screening of soil particle, the partial size that will be greater than 100mm, which screens out, further to be broken
Broken, flushing etc., screenings then enter 9- suction dredge and carry out Soil leaching work.Shattering process totally-enclosed is carried out, and by generation
Tail gas is pumped to 5- deduster, carries out the removal of dust in tail gas.Water at 9- suction dredge comes from 19- circulating water pool, 19- circulation
Sump water a part is the clear water of city planting ductwork, and a part is waste water in 17- concentration tank after the processing of 15- waste water treatment system
Can recycle-water.Contaminated soil after the washing of 9- suction dredge is pumped into 11- cyclone through 12- Pulp pump, and most crude particle is (big
In 10mm) it is discharged through cyclone underflow opening, and most of fine grained (being less than 10mm) is discharged by overflow pipe, to reach separation point
Grade purpose.The coarse granule isolated through 11- cyclone enters 13- high-frequency dewatering screen, and it is to be checked that the stockpiling of the stockyard 21- is entered after dehydration；
The fine grained isolated through 11- cyclone then carries out solid-liquor separation into 17- concentration tank through pump pump, isolates through 17- concentration tank
Waste water, into 15- waste water treatment system processing after be recycled, the soil isolated then enters 16- belt filter press, carry out
Soil filter-press dehydration.So far the lessivation of entire contaminated soil is completed.
Each equipment is assembling equipment, can carry out mobile splicing, have biggish flexibility.
The embodiments of the present invention have been described in detail above, but the content be only the invention preferable implementation
Example, should not be considered as limiting the invention the practical range of creation.It is all according to equivalent change made by the invention range with
Improve etc., it shall still fall within the scope of this patent.
Claims (7)
1. a kind of heavy-metal contaminated soil elutes equipment, including dustless broken and screening system, intelligent elution circuit, filters pressing system
System.
2. dustless broken and screening system according to claim 1, the system is by hopper, vibrosieve batcher, low
Make an uproar jaw crusher and dustless hammer mill etc. composition.Material crushes material to after batcher enters jaw crusher
It after 100mm material below, is sent by dustless conveyer to hammer mill, is set during material transferring by strong magnetic separation
It is standby that the metal contained in soil is removed recycling.Material enters colleges and universities' Complex-frequency screen after impact crusher is handled and is screened,
Big material reenters impact crusher by transportation system and carries out tertiary crushing.
3. dustless broken and screening system according to claim 2 is a closed system, unit, conveyer belt are equal to
Operation in confined space is realized dustless broken.The vibrosieve batcher has assembled vibrating screen, straight line shaker, rotary screen, perfume (or spice)
The advantages of numerous screening machines such as any of several broadleaf plants sieve, fixed strip-type screen, roller picker, discaling roll sieve, forms.
4. intelligence elution circuit according to claim 1, the system are made of screwed washing mud machine, thin mud recovery system.
5. screwed washing mud machine according to claim 4 is a kind of effective powerful stirring washing appliance, have that treating capacity is big, washes
Only the advantages that rate is high.Screwed washing mud machine running part is isolated with water, mud, and failure rate substantially reduces.Utilize water conservancy impact and spiral shell
Paddle double action is revolved, promotes each partial size soil property in soil to be broken up, realizes the abundant washing of contaminated soil.
6. thin mud recovery system according to claim 4 is by motor, Pulp pump, cyclone, high-frequency dewatering screen, sludge condensation
The composition such as tank.Mud mixture is delivered to cyclone through Transmission system, and after cyclone washs, muddy water reaches height after sand settling mouth
Frequency dewatering screen realizes that thin mud is efficiently separated with water, and a small amount of fine sand, mud etc. return to sludge concentrating pot, and sludge condensation jar liquid surface is excessively high
When, it is discharged through discharge port.By changing revolution speed, change concentration of hydraulic mixture, adjusting overflow water, replacing the mouth realization Polluted Soil that shakes out
Cleaning, dehydration and the classification of earth.
7. press filteration system according to claim 1 is belt filters pressing, the system is by Pulp pump, belt filter press, flushing pump,
Air compressor machine, compound pump, the composition such as fresh water pump.This technique is extracted out clarifier sludge by Pulp pump, is pumped after flocculant flocculation is added
It send to being dehydrated on belt filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910587236.2A CN110153165A (en) | 2019-07-02 | 2019-07-02 | A kind of elution equipment of heavy-metal contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910587236.2A CN110153165A (en) | 2019-07-02 | 2019-07-02 | A kind of elution equipment of heavy-metal contaminated soil |
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| Publication Number | Publication Date |
|---|---|
| CN110153165A true CN110153165A (en) | 2019-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910587236.2A Pending CN110153165A (en) | 2019-07-02 | 2019-07-02 | A kind of elution equipment of heavy-metal contaminated soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775171A (en) * | 2020-11-30 | 2021-05-11 | 苏州市宏宇环境科技股份有限公司 | Method for washing and desorbing heavy metal in viscous soil |
| CN115365289A (en) * | 2022-09-19 | 2022-11-22 | 杰瑞环保科技有限公司 | Soil remediation device, soil remediation vehicle and soil remediation method |
-
2019
- 2019-07-02 CN CN201910587236.2A patent/CN110153165A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775171A (en) * | 2020-11-30 | 2021-05-11 | 苏州市宏宇环境科技股份有限公司 | Method for washing and desorbing heavy metal in viscous soil |
| CN115365289A (en) * | 2022-09-19 | 2022-11-22 | 杰瑞环保科技有限公司 | Soil remediation device, soil remediation vehicle and soil remediation method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190823 |