CN206689196U - A kind of heavy-metal contaminated soil repair system - Google Patents
A kind of heavy-metal contaminated soil repair system Download PDFInfo
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- CN206689196U CN206689196U CN201720352580.XU CN201720352580U CN206689196U CN 206689196 U CN206689196 U CN 206689196U CN 201720352580 U CN201720352580 U CN 201720352580U CN 206689196 U CN206689196 U CN 206689196U
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Abstract
It the utility model is related to a kind of heavy-metal contaminated soil repair system.The heavy-metal contaminated soil repair system includes temporary storage location and stabilizes unit, institute's temporary storage location is connected by the first supply unit with stabilizing unit, also include medicine unit, moisturizing unit and maintenance unit, medicament is delivered on the first supply unit by medicine unit, water is delivered on the first supply unit by the moisturizing unit by water pipe, delivery port the projecting positioned at the right side of medicament input position on the first supply unit on the first supply unit of the water pipe；Sieving approach mechanism is provided with the stabilisation unit；The stabilisation unit is connected by the second supply unit with maintenance unit.Heavy-metal contaminated soil repair system high treating effect of the present utility model, cost of disposal is low, and operation is smooth, and treatment effeciency is high, will not blockage phenomenon；Running almost non-secondary pollution.
Description
Technical field
The utility model belongs to soil remediation equipment field, and in particular to a kind of heavy-metal contaminated soil repair system.
Background technology
Heavy-metal contaminated soil reparation is based primarily upon two kinds of strategies：When removalization, by heavy metal from contaminated soil
Remove（Such as elution technique, phytoremediation technology）；Second, immobilization, heavy metal is fixed in soil and limits its release, so as to
Reduce its risk（Such as stabilize, curing technology）.Wherein, stabilisation, curing technology are due to its technology maturation, rehabilitation cost phase
The features such as quick to relatively low and reparation, is most widely used at home at present.
Stabilize, curing technology be into contaminated soil addition stabilize or solidification medicament, be adequately mixed, make its with
Physics, chemical action occur for pollution medium, pollutant, and pollutant is changed into chemical property torpescence form, reduces pollutant
Migration and diffusion in the environment；Or the firming body with hypotonicity by contaminated soil sealing for structural integrity.It is although steady
Surely changing curing technology has a series of advantage, but in place of it is engineered and had much room for improvement in application process there is also some, such as
The determination problem of stabilisation, the screening of curing agent and optimum dosage；The optimization of processing technological flow and processing equipment type selecting
Deng.
Wherein, specialized apparatus manufacturing enterprise in China's is less in terms of processing equipment, relies primarily on to repair enterprise and buy and leads to
With carrying out the professional prosthetic appliance of local flow improvement or selection import foreign countries after screening and mixing apparatus.Therefore, how according to a certain
The characteristic of class contaminated site, selection processing equipment the most suitable, and the processing system of complete set is formed, it is current state internal field
Repair the big problem that enterprise faces in ground.
Utility model content
The purpose of this utility model is in view of the shortcomings of the prior art, there is provided a kind of equipment cost is low, repairing effect is good
Heavy-metal contaminated soil repair system.
The technical solution of the utility model is：A kind of heavy-metal contaminated soil repair system, including temporary storage location and stably
Change unit, institute's temporary storage location is connected by the first supply unit with stabilizing unit, in addition to medicine unit, moisturizing unit and foster
Unit is protected, medicament is delivered on the first supply unit by medicine unit, and water is delivered to first by the moisturizing unit by water pipe
On supply unit, the projection of the delivery port of the water pipe on the first supply unit is located at medicament on the first supply unit and puts into position
The right side put；Sieving approach mechanism is provided with the stabilisation unit；It is described stabilisation unit by the second supply unit with
Conserve unit connection.
Using such structure design, in course of conveying of the metallic pollution place soil on the first supply unit, medicament
Unit is launched stabilization agent onto the soil of the first supply unit automatically, meanwhile, moisturizing unit is conveyed water by water pipe
To the side later of medicament delivery position, the caused Dust Capacity in medicament dropping process is reduced, the secondary pollution of dust is prevented
Meanwhile stabilization agent is partly dissolved, carry out preliminary reaction with the heavy metal in pollution of surface soil in advance；Contaminated soil
It is transported to after stabilizing in unit, contaminated soil is sieved, crushed and stirred medicament and soil abundant by sieving approach mechanism
Uniformly, in screening, broken, whipping process, a part of water is added by sieving approach mechanism, obtained with certain water content
Contaminated soil, and medicament is penetrated into inside soil particle with water, the subsequent soil transports in the presence of the second supply unit
To maintenance unit, in maintenance unit maintenance a period of time, medicament and contaminated soil reaction are abundant, after up to standard, the soil after processing
Landfill is backfilled or transported outward, completes soil treatment.
Further, the sieving approach mechanism is sieving approach scraper bowl, improves operating efficiency.
Sieving approach scraper bowl is to utilize hydraulic crawler excavator, and loading machine or similar working equipment pass through hydraulic pressure horse as accessory
The equidirectional rotation of parallel rollers for making to be horizontally mounted in scraper bowl up to driving, operates and controls the rotation side of roller bearing by main frame driver
To and speed.By between roller bearing in scraper bowl to extruding and shear action, realizing the broken of bulk soil；Soil is in scraper bowl
Interior constantly upset, after repeatedly being crushed, little particle is discharged from roller gap, and bulky grain soil block continues to overturn, crushed, until reaching
It is required that particle diameter.It is screened it is broken after little particle soil during discharge scraper bowl falls, pass through the supporting hydrojet of scraper bowl and fill
Put, a small amount of water is quantitatively sprayed into soil, to ensure uniformity that medicament mixes with contaminated soil, so as to same in an equipment
When complete screening, the broken and treatment process of secondary mixing three of soil and stabilization agent.
Further, first supply unit and the second supply unit are closed belt conveyer.
Further, the medicine unit includes medicament feed bin, and the bottom of the medicament feed bin is provided with conveying worm, institute
Conveying worm is stated to deliver medication on the first supply unit.
Preferably, the quantity of the medicament feed bin is multiple that, for storing different types of stabilization agent, can be directed to same
The different types of heavy-metal contaminated soil of one contaminated site adds suitable stabilization agent.
Further, the moisturizing unit includes cistern and small pump, and water inlet and the cistern of the small pump connect
Logical, the delivery port of the small pump connects with water pipe.
Further, the water pipe includes the first branch pipe and the second branch pipe, and first branch pipe connects with the second branch pipe, institute
The water side for stating the first branch pipe is arranged in temporary storage location, and second branch pipe connects with stabilizing unit, and the second branch pipe is steady
Surely change unit to supply water, reduce soil in stabilisation unit and fall or scoop up caused Dust Capacity.
Further, the water side of the water pipe is provided with spraying mechanism, improves the removal effect to dust.
Further, the heavy-metal contaminated soil repair system also includes dust removing units, and the dust removing units pass through wind
Pipe connects with stabilizing unit, to reduce the dust of working region, controls secondary pollution.
Preferably, the dust removing units are pulsed fiber bag precipitator, the efficiency of dust collection of pulsed fiber bag precipitator
Height, up to 99%, it can uniformly carry out delivering to after the dust deashing of retention and stabilize unit and be disposed.
In the present invention, using automatic medicine adding apparatus in feed belt course of conveying, medicament is added, and is sprayed
Realize preliminary mixing；Secondary mixing is carried out by sieving approach bucket again, it is ensured that medicament fills with the heavy metal ion in soil
Tap is touched, and can be improved stabilization agent service efficiency, be reduced its dosage, so as to save cost of disposal.
For silty clay, it is very easy to block using the conventional screening plant such as vibratory sieve.And due to the caking property of soil
And adherence, common jaw, hammer, reaction type, circular cone type disintegrating apparatus can not be applicable the broken of the type soil, or hold
Soil adhesion in equipment is easily frequently caused to block and can not continuously run.And the mixing apparatus of back segment is due to the stable pharmaceutical added
Certain moisture will be added, soil block also occurs or seizes phenomenon, lead to not stir, part finished product does not reach
Mark, has a strong impact on treatment effect and adds cost of disposal.Comparatively speaking, such ask then is not present in sieving approach scraper bowl
Topic, the solid waste sieving approach work simplification of past complex procedures is to be completed in a step by it, and during work, Polluted Soil can be inverse in bucket
To the circle of rotation tens, mixed effect can also be played while sieving, be broken, operation is smooth, treatment effeciency is high, and will not occur
Clogging.
Whole system is fed and discharging uses closed belt conveyer, and in feed belt（First supply unit）Top
Spray dust is carried out, meanwhile, crushing and screening disposal area（Stabilize unit）For closed job-shop, and supporting dust removing units are to workspace
The dust in domain is collected filtering, so as to control secondary pollution.
Investment can be greatlyd save compared with the supporting import automatic medicament feeding system of conventional crushing and screening scraper bowl；And with current state
The artificial dosing inside more generally used, which is compared, can then significantly reduce artificial labor intensity, and strengthen operating personnel's
Labor safety guarantee.
Compared with prior art, heavy-metal contaminated soil repair system equipment of the present utility model has following beneficial to effect
Fruit：
（1）Repairing effect is good, passes through the forward and backward synergy mixed twice so that contaminated soil fills with stabilization agent
Divide mixing, and under the mating reaction of suitable quantity of water, stabilization agent is penetrated into inside soil particle, so as to greatly promote repair process
Effect；
（2）Treatment effeciency is high, and medication saves, and stabilization agent is added by common medicine machine, only need to control medicament
Scatter speed, without manually adding, medicament greatly reduces human cost without waste；
（3）Not high to equipment requirement, cost of investment is low, without using import automatic dosing apparatus, using common processing
Equipment, reduce the dependency degree to import equipment；
（4）The utilization rate of water is high, substantially without waste, while plays a part of reducing dust and mixed with promotion；
（5）Dust pollution is small, ensure that good operating environment.
Brief description of the drawings
Fig. 1 is the structural representation of the heavy-metal contaminated soil repair system of the utility model the first embodiment.
Fig. 2 is the general frame of heavy-metal contaminated soil repair system of the present utility model.
Embodiment
Describe the utility model in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the utility model can be mutually combined.For sake of convenience, hereinafter such as
There are " on ", " under ", "left", "right" printed words, only represent that the upper and lower, left and right direction with accompanying drawing in itself is consistent, not to structure
Play restriction effect.
Fig. 1 is the structural representation of the heavy-metal contaminated soil repair system of the utility model the first embodiment, tool
Body, the heavy-metal contaminated soil repair system, including temporary storage location 1 and stabilisation unit 8, institute's temporary storage location 1 pass through first
Supply unit 2 connects with stabilizing unit 8, in addition to medicine unit 3, moisturizing unit 4 and maintenance unit 13（See Fig. 1 and Fig. 2）,
Medicament is delivered on the first supply unit 2 by medicine unit 3, and water is delivered to the first conveying by the moisturizing unit 4 by water pipe 7
On unit 2, the projection of the delivery port of the water pipe 7 on the first supply unit 2 is located at medicament on the first supply unit 2 and puts into position
The right side put；Sieving approach mechanism 10 is provided with the stabilisation unit 8；The stabilisation unit 8 is single by the second conveying
Member 12 connects with maintenance unit 13.
Wherein, the sieving approach mechanism 10 is sieving approach scraper bowl；First supply unit 2 and the second supply unit 12 are equal
For closed belt conveyer；Medicine unit 3 includes medicament feed bin 301, and the bottom of the medicament feed bin 301 is provided with helical feed
Machine 302, the conveying worm 302 are delivered medication on the first supply unit 2；Moisturizing unit 4 includes cistern 401 and mended
Water pump 402, the water inlet of the small pump 402 connect with cistern 401, and delivery port and the water pipe 7 of the small pump 402 connect
It is logical；Water pipe 7 includes the first branch pipe 702 and the second branch pipe 701, and first branch pipe 702 connects with the second branch pipe 701, and described
Two branch pipes 701 are connected with stabilizing unit 8, and the water side of the first branch pipe 702 is arranged in temporary storage location 1, the water side of water pipe 7
Provided with spraying mechanism 5.
The heavy-metal contaminated soil repair system of present embodiment also includes dust removing units 6, and the dust removing units 6 pass through wind
Pipe 16 connects with stabilizing unit 8.
Two medicament feed bins are set altogether（301）, for storing the stabilization agent of variety classes or ratio, for different dirts
The soil of dye degree and pollution type, by the sensing weighing system of medicament feed bin, control the dosage of stabilization agent.
During specific processing contaminated soil：
First, by the contaminated soil of excavation by enclosed belt conveyer or closed transport vehicle deliver to stabilize unit 8 it is attached
Near temporary storage location 1 is stacked temporarily.Temporary storage location 1 according to《Hazardous waste stores contamination control standard》It is required that configuration is anti-
Shield measure, prevent rainy day heavy metal in soil from producing dust with water migration or strong wind.Safeguard procedures mainly include：Temporary storage location
1 ground and surrounding barricade carry out seepage prevention design, and top sets awning, and periphery sets Cut-off ditch, and the pre-buried percolate discharge guiding pipe in bottom is to useless
Water collecting pit.Temporary storage location 1 can store the contaminated soil of 7 ~ 10 days treating capacities temporarily.
Then, the contaminated soil of temporary storage location 1 is delivered to using closed belt conveyer and stabilizes workshop.In Polluted Soil
Earth convey while, by the dosing conveying worm 302 of the bottom of medicament feed bin 301 add in proportion stabilization agent cover to
Soil surface on closed belt conveyer, specific ratio are determined according to pilot scale and small-scale experiment.Two medicines are set altogether
Agent feed bin 301, for storing the stabilization agent of variety classes or ratio, for the soil of different pollution levels and pollution type
Earth, by the sensing weighing system of medicament feed bin 301, control the dosage of stabilization agent.
Stabilization agent adds and sets up spraying mechanism 5 above mouthful rear end belt, on the one hand can reduce in medicament dropping process
Caused Dust Capacity, prevent the secondary pollution of dust；On the other hand be then partly dissolved stabilization agent, in advance and pollution of surface
Heavy metal in soil carries out preliminary reaction.Need strictly to control its water during spray, general control is at contaminated soil
Less than the 1% of reason amount（Mass ratio）.
Finally, by sieve, crush, mix integration apparatus i.e. sieving approach scraper bowl stabilize unit 8 in stirring
Contaminated soil 9 before mixing carries out 2 ~ 3 screenings, broken and secondary agitation, to ensure that medicament is thoroughly mixed with soil, make pollution because
Son is realized and sufficiently stabilized.Moisture content is determined before amount of water in this technical process need to be disposed according to contaminated soil, always
Body ensures the moisture content of contaminated soil between 15 ~ 20wt.%.
Contaminated soil 11 after stirring is delivered in maintenance unit 13 by the second supply unit 12, is conserved in maintenance unit 13
4 ~ 7 days, carry out the soil handled daily subregion and stack and carry out mark, ensure that the heavy metal in contaminated soil fills with stabilizer
Divide reaction, form inert substance.After maintenance after detection Leaching meets relevant criterion, if heavy metal in soil total amount repairing
Below complicated target value, it can backfill on the spot；Outward transport is needed to fill if more than desired value is repaired.It is main to conserve the safeguard procedures of unit 13
Including：Mill floor and surrounding barricade carry out seepage prevention design, and top sets awning, and periphery sets Cut-off ditch.
The contaminated soil disposed by present treatment system, it is ensured that target heavy metal pollution factor Leaching qualification rate
More than 95%；Under the same terms, added amount of chemical, which more manually adds, can reduce about 5% or so.
The content that above-described embodiment illustrates should be understood to that these embodiments are only used for being illustrated more clearly that the utility model,
Rather than limitation the scope of the utility model, after the utility model has been read, those skilled in the art are new to this practicality
The modification of the various equivalent form of values of type each falls within the application appended claims limited range.
Claims (10)
1. a kind of heavy-metal contaminated soil repair system, including temporary storage location（1）With stabilisation unit（8）, institute's temporary storage location（1）
Pass through the first supply unit（2）With stabilizing unit（8）Connection, it is characterised in that also including medicine unit（3）, moisturizing unit
（4）With maintenance unit（13）, medicine unit（3）Medicament is delivered to the first supply unit（2）On, the moisturizing unit（4）It is logical
Cross water pipe（7）Water is delivered to the first supply unit（2）On, the water pipe（7）Delivery port in the first supply unit（2）On
Projection is located at the first supply unit（2）The right side of upper medicament input position；The stabilisation unit（8）Inside it is provided with sieving approach
Mechanism（10）；The stabilisation unit（8）Pass through the second supply unit（12）With conserving unit（13）Connection.
2. heavy-metal contaminated soil repair system according to claim 1, it is characterised in that the sieving approach mechanism
（10）For sieving approach scraper bowl.
3. heavy-metal contaminated soil repair system according to claim 1, it is characterised in that first supply unit
（2）With the second supply unit（12）It is closed belt conveyer.
4. heavy-metal contaminated soil repair system according to claim 1, it is characterised in that the medicine unit（3）Bag
Include medicament feed bin（301）, the medicament feed bin（301）Bottom be provided with conveying worm（302）, the conveying worm
（302）Deliver medication into the first supply unit（2）On.
5. heavy-metal contaminated soil repair system according to claim 4, it is characterised in that the medicament feed bin（301）
Quantity to be multiple.
6. heavy-metal contaminated soil repair system according to claim 1, it is characterised in that the moisturizing unit（4）Bag
Include cistern（401）And small pump（402）, the small pump（402）Water inlet and cistern（401）Connection, the moisturizing
Pump（402）Delivery port and water pipe（7）Connection.
7. heavy-metal contaminated soil repair system according to claim 1, it is characterised in that the water pipe（7）Including
One branch pipe（702）With the second branch pipe（701）, first branch pipe（702）With the second branch pipe（701）Connection, first branch pipe
（702）Water side be arranged at temporary storage location（1）It is interior, second branch pipe（701）With stabilizing unit（8）Connection.
8. heavy-metal contaminated soil repair system according to claim 1, it is characterised in that the water pipe（7）Water outlet
End is provided with spraying mechanism（5）.
9. the heavy-metal contaminated soil repair system according to any one of claim 1 ~ 8, it is characterised in that also including dedusting
Unit（6）, the dust removing units（6）Pass through airduct（16）With stabilizing unit（8）Connection.
10. heavy-metal contaminated soil repair system according to claim 9, it is characterised in that the dust removing units（6）For
Pulsed fiber bag precipitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720352580.XU CN206689196U (en) | 2017-04-06 | 2017-04-06 | A kind of heavy-metal contaminated soil repair system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720352580.XU CN206689196U (en) | 2017-04-06 | 2017-04-06 | A kind of heavy-metal contaminated soil repair system |
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| CN206689196U true CN206689196U (en) | 2017-12-01 |
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| CN201720352580.XU Active CN206689196U (en) | 2017-04-06 | 2017-04-06 | A kind of heavy-metal contaminated soil repair system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114620A (en) * | 2018-01-11 | 2018-06-05 | 广西壮族自治区亚热带作物研究所 | A kind of method for uniformly adding water to a large amount of soil |
| CN108637008A (en) * | 2018-06-22 | 2018-10-12 | 煜环环境科技有限公司 | A kind of ladder release type heavy-metal contaminated soil solidification and stabilization restorative procedure |
| CN109909278A (en) * | 2019-02-22 | 2019-06-21 | 北京中岩大地科技股份有限公司 | A kind of Polluted Soil abatement equipment |
| CN113522946A (en) * | 2021-06-03 | 2021-10-22 | 福建南方路面机械股份有限公司 | Novel soil improvement treatment system, process and application |
| CN113732050A (en) * | 2021-09-13 | 2021-12-03 | 中冶节能环保有限责任公司 | Contaminated soil solidification and stabilization treatment system and process |
-
2017
- 2017-04-06 CN CN201720352580.XU patent/CN206689196U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114620A (en) * | 2018-01-11 | 2018-06-05 | 广西壮族自治区亚热带作物研究所 | A kind of method for uniformly adding water to a large amount of soil |
| CN108637008A (en) * | 2018-06-22 | 2018-10-12 | 煜环环境科技有限公司 | A kind of ladder release type heavy-metal contaminated soil solidification and stabilization restorative procedure |
| CN109909278A (en) * | 2019-02-22 | 2019-06-21 | 北京中岩大地科技股份有限公司 | A kind of Polluted Soil abatement equipment |
| CN109909278B (en) * | 2019-02-22 | 2024-03-26 | 北京中岩大地科技股份有限公司 | Contaminated soil treatment equipment |
| CN113522946A (en) * | 2021-06-03 | 2021-10-22 | 福建南方路面机械股份有限公司 | Novel soil improvement treatment system, process and application |
| CN113732050A (en) * | 2021-09-13 | 2021-12-03 | 中冶节能环保有限责任公司 | Contaminated soil solidification and stabilization treatment system and process |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 16, camphor East Road, Yuhua District, Changsha, Hunan Patentee after: POWERCHINA ZHONGNAN ENGINEERING Corp.,Ltd. Patentee after: China Power Construction Environmental Protection Technology Co.,Ltd. Address before: No. 16, camphor East Road, Yuhua District, Changsha, Hunan Patentee before: POWERCHINA ZHONGNAN ENGINEERING Corp.,Ltd. Patentee before: Hunan Zhongnan Water Environmental Protection Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |