CN104438308A - 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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- CN104438308A CN104438308A CN201310428003.0A CN201310428003A CN104438308A CN 104438308 A CN104438308 A CN 104438308A CN 201310428003 A CN201310428003 A CN 201310428003A CN 104438308 A CN104438308 A CN 104438308A
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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, is specifically related to a kind of radial-flow ICFB heavy metal-polluted soil washing device, is particularly useful for the showering of severe heavy-metal contaminated soil.
Background technology
Soil is the important foundation of mankind's natural environment of depending on for existence and agricultural production.Since the twenties in 20th century, due to industrial expansion, the output of metal obviously increases, and consequent heavy metal problem of environmental pollution also occurs thereupon, and many countries start to be faced with the problem that soil pollution seriously hinders agricultural production.It is reported, China has reached 300,000,000 mu by the arable land of heavy metal pollution, and there is industry to agricultural transfer, city to transfer of rural, earth's surface to underground transfer, upstream toward downstream transfer in heavy metal pollution, shifting to food chain from water and soil pollution, entering by polluting progressively accumulation the situation that pollution is sudden, linksystem, regionality break 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 contains peripheral doses, chemical redemption and the method such as biological prosthetic.Compared with other restorative procedures, chemical repair method have stable treatment effect, cycle short, administer the advantages such as thorough, be particularly useful for the quick improvement of serious pollution soil.Patent document CN102225425A " a kind of ELUTION METHOD of restoration of soil polluted by heavy metal " reports a kind of chemical repair method of heavy-metal contaminated soil, but the method also rests at laboratory stage; Patent document CN101704017A " from soil the method for extracting heavy metal ions and device thereof " proposes a kind of Extraction of Heavy Metals method for cadmium, chromium, copper, mercury, lead and other elements contaminated soil, but the method is in laboratory stage equally.Concentrate the present situation of outburst for heavy metal pollution of soil, the heavy metal-polluted soil elution technique that exploitation adapts to Production requirement is extremely important.
Summary of the invention
The defect existed for prior art and deficiency, propose a kind of radial-flow ICFB heavy metal-polluted soil washing device integrated with production technology demand.This device can realize the continuous operation of heavy metal-polluted soil wash-out, meanwhile, can realize native liquid and automatically be separated, and then reclaims the cleaning soil after wash-out.
The technical scheme of patent of invention is as follows:
Radial-flow ICFB heavy metal-polluted soil washing device, it is characterized in that described device is separated a district by heavy metal elution zone, mud liquid, mud liquid is separated two district three parts and forms, wherein, heavy metal elution zone is made up of eluent entrance (1), soil entrance (2) of getting dirty, Inner eycle cylinder (3), drive bearing (4), impeller inducer (5), deflector (6), motor (7) seven part; It is lower to stream that mud liquid is separated district's water (flow) direction, and it is upward flows that mud liquid is separated two district's water (flow) directions; It is concentric structure that mud liquid is separated a district and heavy metal elution zone, dark 2.6 meters, diameter 1.2 meters, and outer wall bottom opening; It is concentric structure that mud liquid is separated 2nd district and heavy metal elution zone, dark 2.2 meters, diameter 1.6 meters; Heavy metal elution zone is internal diameter 0.8 meter, the stainless steel cylindrical structure of dark 3.0 meters, cylinder interior is near the center installation internal diameter 0.3 meter at 0.2-1.7 rice, bottom, the Inner eycle cylinder (3) of high 1.5 meters, simultaneously, the interior position of center line of Inner eycle cylinder (3) installs drive bearing (4), impeller inducer (5), and is connected with motor (7) on power transmission shaft (4) top; At the U-PVC pipe of pre-buried two the diameter 50mm of stainless steel bottom of cylinder respectively as eluent entrance (1) and soil entrance (2) of getting dirty; Deflector (6) diameter is 0.3m, can be arranged on 20cm and position, two, stainless steel barrel top 10cm place directly over Inner eycle cylinder, realizes heavy metal-polluted soil fluidisation wash-out respectively 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 wash-out, and elution time, unit interval soil elution amount all can be regulated by soil addition of getting dirty, and can meet the operating condition requirement of the quick wash-out of different pollution type heavy metal-polluted soils; (2), device entirety achieves native liquid and is automatically separated, and facilitates the recovery of cleaning soil and is rich in the follow-up of heavy metal washing lotion and focuses on; (3), apparatus structure is compact, saves floor space; (4), the setting of ICFB enhances the frictional impact of soil particle and native liquid mixability, improves heavy metal cleaning efficiency; (5), radial design mode makes peripheral current upflow velocity diminish, and improves native liquid separating effect.
Accompanying drawing explanation
Fig. 1 is the overall schematic of this device; Fig. 2 is device A-A profile.
In figure: 1-eluent entrance; 2-soil entrance of getting dirty; 3-Inner eycle cylinder; 4-drive bearing; 5-impeller inducer; 6-deflector; 7-motor; 8-bucket; 9-discharge pipeline; 10-heavy metal elution zone; 11-mud liquid is separated a district; 12-mud liquid is separated 2nd district.
Detailed description of the invention
See Fig. 1-Fig. 2, this device is separated a district by heavy metal elution zone, mud liquid, mud liquid is separated two district three parts and forms, wherein, heavy metal elution zone is made up of eluent entrance (1), soil entrance (2) of getting dirty, Inner eycle cylinder (3), drive bearing (4), impeller inducer (5), deflector (6), motor (7) seven part.First, process an internal diameter 0.8 meter, the stainless steel cylinder of dark 3.0 meters, drum surface does preservative treatment, cylinder interior is near the center installation internal diameter 0.3 meter at 0.2-1.7 rice, bottom, the Inner eycle cylinder (3) of high 1.5 meters, simultaneously, the interior position of center line of Inner eycle cylinder (3) installs drive bearing (4), impeller inducer (5), and is connected with motor (7) on power transmission shaft (4) top; At the U-PVC pipe of pre-buried two the diameter 50mm of stainless steel bottom of cylinder respectively as eluent entrance (1) and soil entrance (2) of getting dirty, and the mouth of pipe stretches out mud liquid is separated two district outer wall 20cm; The smooth arc shape structure that deflector (6) is diameter 0.3m, device brings into operation the stage, the soil of ICFB heavy metal elution zone bottom deposit is less, deflector (6) is arranged on 20cm place directly over Inner eycle cylinder, along with the prolongation of running time, the soil of ICFB heavy metal elution zone bottom deposit increases gradually, now deflector (6) is installed on stainless steel barrel top 10cm place, the soil of deposition is discharged, again deflector (6) is reinstalled in 20cm place directly over Inner eycle cylinder afterwards.Secondly, it is concentric structure that mud liquid is separated a district and heavy metal elution zone, diameter 1.2 meters, high 2.6 meters, outer wall bottom opening.Again, it is also concentric structure that mud liquid is separated 2nd district and heavy metal elution zone, and diameter 1.6 meters is high 2.2 meters, and the eluent being rich in heavy metal is separated two tops, district by mud liquid and discharges; Meanwhile, mud liquid is separated two district's bottom angled, makes the bucket that the degree of depth is 1.0 meters, and after running a period of time, cleaning soil is discharged by the discharge pipeline of bucket.
Claims (6)
1. radial-flow ICFB heavy metal-polluted soil washing device, it is characterized in that: described device is separated a district by heavy metal elution zone, mud liquid, mud liquid is separated two district three parts and forms, wherein, heavy metal elution zone is made up of eluent entrance (1), soil entrance (2) of getting dirty, Inner eycle cylinder (3), drive bearing (4), impeller inducer (5), deflector (6), motor (7) seven part.
2. radial-flow ICFB heavy metal-polluted soil washing device as claimed in claim 1, it is lower to stream for it is characterized in that mud liquid is separated district's water (flow) direction, and it is upward flows that mud liquid is separated two district's water (flow) directions.
3. radial-flow ICFB heavy metal-polluted soil washing device as claimed in claim 1, it is characterized in that mud liquid is separated a district and heavy metal elution zone is concentric structure, dark 2.6 meters, diameter 1.2 meters, and outer wall bottom opening.
4. radial-flow ICFB heavy metal-polluted soil washing device as claimed in claim 1, it is characterized in that mud liquid is separated 2nd district and heavy metal elution zone is concentric structure, dark 2.2 meters, diameter 1.6 meters.
5. radial-flow ICFB heavy metal-polluted soil washing device as claimed in claim 1, it is characterized in that heavy metal elution zone is internal diameter 0.8 meter, the stainless steel cylindrical structure of dark 3.0 meters, cylinder interior is near the center installation internal diameter 0.3 meter at 0.2-1.7 rice, bottom, the Inner eycle cylinder (3) of high 1.5 meters, simultaneously, the interior position of center line of Inner eycle cylinder (3) installs drive bearing (4), impeller inducer (5), and is connected with motor (7) on power transmission shaft (4) top; At the U-PVC pipe of pre-buried two the diameter 50mm of stainless steel bottom of cylinder respectively as eluent entrance (1) and soil entrance (2) of getting dirty.
6. radial-flow ICFB heavy metal-polluted soil washing device as claimed in claim 1, it is characterized in that deflector (6) diameter is 0.3m, 20cm and position, two, stainless steel barrel top 10cm place directly over Inner eycle cylinder can be arranged on, realize heavy metal-polluted soil fluidisation wash-out respectively and sedimentary soil discharges two functions.
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 |
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| Publication Number | Publication Date |
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| CN104438308A true CN104438308A (en) | 2015-03-25 |
| CN104438308B CN104438308B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983765A (en) * | 2017-12-19 | 2018-05-04 | 中石化炼化工程（集团）股份有限公司 | Organic pollution soil repair system and technique |
Citations (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 |
| JP2013169504A (en) * | 2012-02-20 | 2013-09-02 | Sanei:Kk | Contaminated soil treatment apparatus |
| 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 |
-
2013
- 2013-09-22 CN CN201310428003.0A patent/CN104438308B/en not_active Expired - Fee Related
Patent Citations (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 |
| JP2013169504A (en) * | 2012-02-20 | 2013-09-02 | Sanei:Kk | Contaminated soil treatment apparatus |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983765A (en) * | 2017-12-19 | 2018-05-04 | 中石化炼化工程（集团）股份有限公司 | Organic pollution soil repair system and technique |
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| CN104438308B (en) | 2017-02-08 |
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Granted publication date: 20170208 Termination date: 20190922 |