CN104438308B - Radial flow type inner circulation fluidized bed soil heavy metal elution apparatus - Google Patents
Radial flow type inner circulation fluidized bed soil heavy metal elution apparatus Download PDFInfo
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- CN104438308B CN104438308B CN201310428003.0A CN201310428003A CN104438308B CN 104438308 B CN104438308 B CN 104438308B CN 201310428003 A CN201310428003 A CN 201310428003A CN 104438308 B CN104438308 B CN 104438308B
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- heavy metal
- soil
- mud liquid
- metal elution
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Abstract
The present invention discloses a radial flow type inner circulation fluidized bed soil heavy metal elution apparatus, which comprises three parts such as a heavy metal elution zone, a mud liquid separation zone 1 and a mud liquid separation zone 2, wherein the heavy metal elution zone comprises seven parts such as an eluent inlet (1), a contaminated soil inlet (2), an inner circulation cylinder (3), a transmission bearing (4), a diversion blade wheel (5), a diversion plate (6) and a motor (7), the water flow direction of the mud liquid separation zone 1 is the downward flow, the bottom portion on the outer wall is provided with a hole, the water flow direction of the mud liquid separation zone 2 is the upward flow, the depth is 2.2 m, and the diameter is 1.6 m. The radial flow type inner circulation fluidized bed soil heavy metal elution apparatus has the following advantages that: the continuous operation of the soil heavy metal elution is achieved, the elution time and the soil elution volume per unit time can be adjusted, the operation condition requirements on the rapid heavy metal elution of the soil with different contamination types can be met, the whole apparatus achieves the automatic soil liquid separation so as to easily achieve the recovery of the clean soil and the subsequent centralized treatment of the heavy metal-rich eluent, the apparatus structure is compact, and the occupation area is small.
Description
Technical field
Patent of the present invention belongs to heavy-metal contaminated soil chemical remediation technology field and in particular to a kind of radial-flow interior circulation
Fluid bed heavy metal-polluted soil washing device, is particularly suited for the showering of severe heavy-metal contaminated soil.
Background technology
Soil is the important foundation of natural environment for the survival of mankind and agricultural production.Since the twenties in 20th century,
Due to industrial expansion, the yield of metal substantially increases, and consequent heavy metal problem of environmental pollution also occurs therewith, many
Country starts to be faced with the problem that soil pollution seriously hinders agricultural production.It is reported that, China has been subject to the arable land of heavy metal pollution
Reach 300,000,000 mu, and heavy metal pollution occurred industry to agricultural transfer, city to transfer of rural, earth's surface to underground shift, upstream to
Downstream is shifted, from water and soil pollution to food chain tra nsfer, by pollute progressively accumulation enter that pollution is sudden, linksystem, regional quick-fried
The situation sent out.Therefore, the heavy metal pollution of soil Treatment process seeking economical and efficient is extremely urgent.
At present, the restorative procedure of heavy metal pollution of soil mainly has the methods such as peripheral doses, chemical redemption and biological restoration.
Compared with other restorative procedures, chemical repair method has the advantages that stable treatment effect, cycle is short, improvement are thorough, especially suitable
Quick improvement for serious pollution soil.A kind of patent documentation CN102225425A " drip washing of restoration of soil polluted by heavy metal
Method " reports a kind of chemical repair method of heavy-metal contaminated soil, however, the method also rests in laboratory stage；
Patent documentation CN101704017A " method of extracting heavy metal ions and its device from soil " propose a kind of for cadmium,
Chromium, copper, hydrargyrum, the Extraction of Heavy Metals method of lead and other elements contaminated soil, but the method is similarly in laboratory stage.For soil
The present situation of outburst is concentrated in heavy metal pollution, and the heavy metal-polluted soil elution technique that exploitation adapts to Production requirement is extremely important.
Content of the invention
The defect existing for prior art and deficiency, propose a kind of radial-flow interior circulation integrating with production technology demand
Fluid bed heavy metal-polluted soil washing device.This device can realize the continuous operation of heavy metal-polluted soil eluting, simultaneously, it is possible to achieve
Native liquid is automatically separated, and then reclaims the cleaning soil after eluting.
The technical scheme of patent of invention is as follows：
Radial-flow ICFB heavy metal-polluted soil washing device is it is characterised in that described device is by heavy metal eluting
Area, mud liquid separate an area, mud liquid separates 2nd area three part composition, and wherein, heavy metal elution zone is by eluent entrance 1, soil of getting dirty
Earth entrance 2, interior circulation cylinder 3, power transmission shaft 4, impeller inducer 5, deflector 6, motor 7 seven part composition；Mud liquid separates area's current
Direction be lower to stream, it is upward flow that mud liquid separates two area's water (flow) directions；It is concentric circular that mud liquid separates an area with heavy metal elution zone
Structure, deep 2.6 meters, 1.2 meters of diameter, and outer wall bottom opening；It is concentric structure that mud liquid separates 2nd area with heavy metal elution zone,
Deep 2.2 meters, 1.6 meters of diameter；Heavy metal elution zone is 0.8 meter of internal diameter, deep 3.0 meters of stainless steel cylinder structure, and cylinder interior is leaned on
0.3 meter of internal diameter, high 1.5 meters of interior circulation cylinder 3 are installed, meanwhile, in interior circulation cylinder 3 in center at the 0.2-1.7 rice of nearly bottom
Position of center line installs power transmission shaft 4, impeller inducer 5, and power transmission shaft 4 top is connected with motor 7；Pre- in rustless steel bottom of cylinder
The U-PVC pipe burying two diameter 50mm is respectively as eluent entrance 1 and soil entrance 2 of getting dirty；The a diameter of 0.3m of deflector 6,
May be installed two positions at 20cm and rustless steel barrel top 10cm directly over interior circulation cylinder, realize heavy metal-polluted soil stream respectively
Change eluting and sedimentary soil discharges two functions.
The major advantage of patent of the present invention is as follows：（1）, achieve the continuous operation of heavy metal-polluted soil eluting, and during eluting
Between, unit interval soil elution amount all can be adjusted by soil addition of getting dirty, a different pollution type soil huge sum of money can be met
The operating condition belonging to quick eluting requires；（2）, device integrally achieve native liquid and be automatically separated, facilitate the recovery of cleaning soil
With subsequently focusing on rich in heavy metal washing liquid；（3）, apparatus structure compact, save floor space；（4）, inner circulation fluidized
The setting of bed enhances the frictional impact of soil particle and native liquid mixability, improves heavy metal cleaning efficiency；（5）, spoke stream
Formula design makes peripheral current upflow velocity diminish, and improves native liquid separating effect.
Brief description
Fig. 1 is the overall schematic of this device；Fig. 2 is device A-A profile.
In figure：1 eluent entrance；2 get dirty soil entrance；3 interior circulation cylinders；4 power transmission shafts；5 impeller inducers；
6 deflectors；7 motors；8 buckets；9 discharge pipelines；10 heavy metal elution zone；11 mud liquid separate an area；12 mud
Liquid separates 2nd area.
Specific embodiment
Referring to Fig. 1-Fig. 2, this device separates an area by heavy metal elution zone, mud liquid, mud liquid separates 2nd area three part and forms,
Wherein, heavy metal elution zone is by eluent entrance 1, soil entrance 2 of getting dirty, interior circulation cylinder 3, power transmission shaft 4, impeller inducer 5, water conservancy diversion
Plate 6, motor 7 seven part composition.First, 0.8 meter of one internal diameter of processing, deep 3.0 meters of rustless steel cylinder, drum surface does anti-corrosion place
Reason, 0.3 meter of internal diameter, high 1.5 meters of interior circulation cylinder 3 are installed in center at the 0.2-1.7 rice of bottom for the cylinder interior, with
When, in interior circulation cylinder 3, position of center line installs power transmission shaft 4, impeller inducer 5, and power transmission shaft 4 top is connected with motor 7；Not
The U-PVC pipe of the rust pre-buried two diameter 50mm of steel bottom of cylinder is respectively as eluent entrance 1 and soil entrance 2 of getting dirty, and manages
Mouth stretches out mud liquid and separates two area outer wall 20cm；Deflector 6 is the smooth arc shape structure of diameter 0.3m, and device brings into operation rank
Section, the soil of ICFB heavy metal elution zone bottom deposit is less, and deflector 6 is arranged on 20cm directly over interior circulation cylinder
Place, with the prolongation of run time, the soil of ICFB heavy metal elution zone bottom deposit gradually increases, and now will lead
Stream plate 6 is installed at rustless steel barrel top 10cm, and the soil of deposition is discharged, and is reinstalled in deflector 6 interior afterwards again
At 20cm directly over circulating barrel.Secondly, mud liquid separates an area with heavy metal elution zone is concentric structure, and 1.2 meters of diameter is high
2.6 meters, outer wall bottom opening.Again, mud liquid separates 2nd area with heavy metal elution zone is also concentric structure, and 1.6 meters of diameter is high
2.2 meters, the eluent rich in heavy metal separates two area tops by mud liquid and discharges；Meanwhile, mud liquid separates two area's bottom angled, makes
Depth is 1.0 meters of bucket, and after running a period of time, cleaning soil is discharged by the discharge pipeline of bucket.
Claims (1)
1. radial-flow ICFB heavy metal-polluted soil washing device it is characterised in that：Described device by heavy metal elution zone,
Mud liquid separates an area, mud liquid separates 2nd area three part composition, and wherein, heavy metal elution zone is by eluent entrance（1）, soil of getting dirty
Entrance（2）, interior circulation cylinder（3）, power transmission shaft（4）, impeller inducer（5）, deflector（6）, motor（7）Seven part compositions, heavy metal
Elution zone is 0.8 meter of internal diameter, deep 3.0 meters of stainless steel cylinder structure, centre bit at the 0.2-1.7 rice of bottom for the cylinder interior
Put 0.3 meter of internal diameter of installation, high 1.5 meters of interior circulation cylinder（3）, meanwhile, interior circulation cylinder（3）Interior position of center line installs power transmission shaft
（4）, impeller inducer（5）, and by power transmission shaft（4）Top and motor（7）It is connected；In pre-buried two diameters of rustless steel bottom of cylinder
The U-PVC pipe of 50mm is respectively as eluent entrance（1）With soil entrance of getting dirty（2）, and the mouth of pipe stretch out mud liquid separate 2nd area outside
Wall 20cm；Described deflector（6）Smooth arc shape structure for diameter 0.3m, may be installed directly over interior circulation cylinder 20cm and not
Two positions at rust steel barrel top 10cm, realize heavy metal-polluted soil fluidisation eluting respectively and sedimentary soil discharges two functions；
Described mud liquid separate area's water (flow) direction be lower to stream, it is upward flow that mud liquid separates two area's water (flow) directions, mud liquid separates one
Area and heavy metal elution zone are concentric structures, deep 2.6 meters, 1.2 meters of diameter, and outer wall bottom opening；
It is concentric structure that described mud liquid separates 2nd area with heavy metal elution zone, deep 2.2 meters, 1.6 meters of diameter；Mud liquid separates 2nd area
Bottom angled, is the bucket of 1.0 meters of depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310428003.0A CN104438308B (en) | 2013-09-22 | 2013-09-22 | Radial flow type inner circulation fluidized bed soil heavy metal elution apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310428003.0A CN104438308B (en) | 2013-09-22 | 2013-09-22 | Radial flow type inner circulation fluidized bed soil heavy metal elution apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104438308A CN104438308A (en) | 2015-03-25 |
| CN104438308B true CN104438308B (en) | 2017-02-08 |
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ID=52885501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310428003.0A Expired - Fee Related CN104438308B (en) | 2013-09-22 | 2013-09-22 | Radial flow type inner circulation fluidized bed soil heavy metal elution apparatus |
Country Status (1)
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| CN (1) | CN104438308B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983765B (en) * | 2017-12-19 | 2020-08-04 | 中石化炼化工程（集团）股份有限公司 | Organic contaminated soil remediation system and process |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4430686A1 (en) * | 1994-08-30 | 1996-03-21 | Gerhard Zauner | Heavy metal decontamination process |
| CN101386020A (en) * | 2008-06-04 | 2009-03-18 | 北京师范大学 | Swirling flow mud elution reactor of allotopia treatment contaminated soil and cyclodextrin elution system containing the swirling flow mud elution reactor |
| CN101732822A (en) * | 2008-11-04 | 2010-06-16 | 永旭环保科技股份有限公司 | Method for treating waste or soil polluted by heavy metal or dioxin |
| CN201848424U (en) * | 2010-11-11 | 2011-06-01 | 南京市环境保护科学研究院 | Contaminated soil leaching remediation equipment |
| JP5470563B2 (en) * | 2012-02-20 | 2014-04-16 | 株式会社サンエイ | Contaminated soil treatment equipment |
| CN203508588U (en) * | 2013-09-22 | 2014-04-02 | 重庆文理学院 | Soil heavy metal eluting device with radial-flow type internal circulating fluidized bed |
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2013
- 2013-09-22 CN CN201310428003.0A patent/CN104438308B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104438308A (en) | 2015-03-25 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20190922 |