CN103076203A - Experimental facility for collecting leachate during mining wasteland remediation - Google Patents
Experimental facility for collecting leachate during mining wasteland remediation Download PDFInfo
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- CN103076203A CN103076203A CN2013100097483A CN201310009748A CN103076203A CN 103076203 A CN103076203 A CN 103076203A CN 2013100097483 A CN2013100097483 A CN 2013100097483A CN 201310009748 A CN201310009748 A CN 201310009748A CN 103076203 A CN103076203 A CN 103076203A
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Abstract
An experimental facility for collecting leachate during mining wasteland remediation relates to ecological remediation experiment facilities. A percolation device 1 adopts the structure that a percolation plate 2 on the upper surface of the percolation device 1 is connected with an impermeable plate 4 on the lower surface of the percolation device 1 through support pillars 3; a baffler 16 is connected to the front end of the percolation device 1; a leachate outlet 5 is formed in the baffler 16; percolation guiding holes 15 are uniformly distributed on the percolation plate 2; the leachate outlet 5 is connected with the end of a flow guide device 7, of which the caliber is thinner, through a hose 6; a porous filter screen 8 is arranged in the inner cavity at the end, with a thicker caliber, of the flow guide device 7; the end of the flow guide device 7, of which the caliber is thicker, is connected with one lateral port of a filtering device through a plastic hose; a top cap is mounted at the top of the filtering device; a detachable filter screen is placed at the lower part of the inner cavity of the filtering device; and a spherical valve is mounted at the lower end of the filtering device. Through the adoption of the experimental facility, leachate of natural rainfall or manually simulated rainfall can be collected in a controllable manner in an in-situ experiment of mining wasteland ecological remediation, so as to solve the problem that laboratory simulation study cannot reflect field environmental conditions completely.
Description
Technical field
The present invention relates to the experimental provision of ecological recovery, particularly relate to a kind of experimental provision of repairing the percolate collection for Abandoned Land of Mine.
Background technology
Current at rapid economic development, the large scale mining in mine takies and has destroyed a large amount of land resources, and ore dust, mining wastewater discharging, rainwash in long-time after mining and exploitation, the process such as come down, subside continue pollution and destruction surrounding enviroment.Therefore, the ecological recovery of Abandoned Land of Mine is a requisite task in mining industry and even the national economy sustainable development.Yet, because the Abandoned Land of Mine land occupation condition is very abominable, exist the factor of many limiting plant growths, need to take the human assistance measure, as use and repair matrix or modifying agent improves the abandoned land land occupation condition, and the suitable tolerant plant of screening collocation plantation carries out manual intervention and accelerates recovering process.Large quantity research is found to contain a large amount of poisonous and harmful substances in Abandoned Land of Mine mine tailing or the waste residue, and these objectionable impuritiess can along with the downward diafiltration of rainwater, cause serious threat to Soil Surrounding and body of groundwater in the natural precipitation process.And along with the reparation matrix of using or the difference of modifying agent, marked change also occurs in the percolate performance.
Because the Abandoned Land of Mine circumstance complication, percolate gathers difficulty.Existing Soil moisture sampler mainly is to utilize vacuum condition to gather solution in the soil after inserting soil by level, then can't carry out the collection of percolate for the large environment of Abandoned Land of Mine mine tailings or row such space, rock field.Therefore, existing research method mainly is that mine solid waste is adopted go back to the laboratory, carries out laboratory simulation research.The percolate performance difference is larger under the method result of study and the natural conditions, can't well reflect in the Abandoned Land of Mine restoration of the ecosystem variation of poisonous and harmful substance content and form in the percolate.
Summary of the invention
The object of the present invention is to provide a kind of experimental provision of repairing the percolate collection for Abandoned Land of Mine.This device in Abandoned Land of Mine ecological recovery original position experiment to natural precipitation conditioned disjunction artificially-simulated rainfall condition under percolate carry out controlled collection, solved the purpose that laboratory simulation research can not reflect field environmental condition fully.
The objective of the invention is to be achieved through the following technical solutions:
A kind of experimental provision of repairing the percolate collection for Abandoned Land of Mine comprises percolating device, the diafiltration plate, support column, barrier sheet, guiding device, the porous filtering net, filtration unit, top cover, screen pack, spherical valve, percolate adaptor, baffler, described percolating device is connected with following barrier sheet by support column by being positioned at top diafiltration plate, and front end connects baffler, baffler is provided with the percolate outlet, is evenly distributed with on the diafiltration plate and leads seepage hole; The percolate outlet is connected by thinner bore one end of flexible pipe and guiding device, and the thicker end inner chamber of guiding device bore is equipped with a porous filtering net; The thicker end of guiding device bore is connected with filtration unit side mouth by plastic flexible pipe, and the filtration unit top is equipped with a top cover, and the screen pack that can retract is placed in the bottom of its inner chamber, and the lower end is equipped with a spherical valve; The lower end of filtration unit is an open-end tube, and the end of this open-end tube extend into the inner chamber of percolate adaptor.
Described a kind of experimental provision of repairing the percolate collection for Abandoned Land of Mine, its described percolate endpiece is connected with guiding device by flexible pipe, a porous filtering net is installed in the guiding device inner chamber, port is connected with filtration unit by plastic flexible pipe, screen pack is installed in the bottom of filtration unit inner chamber, and lower ending opening pipe port stretches into percolate adaptor inner chamber.
Described a kind of experimental provision of repairing the percolate collection for Abandoned Land of Mine, the diafiltration plate is 1% degree of tilt and is connected with baffler, and diafiltration plate bottom is uniform-distribution with a plurality of seepage holes of leading.
Described a kind of experimental provision of repairing the percolate collection for Abandoned Land of Mine is equipped with a spherical valve on the described filtration unit lower ending opening pipe, and a screen pack that can retract is installed in the filtration unit inner chamber.
Advantage of the present invention and effect are:
1. the diafiltration plate is 1% degree of tilt and is connected with baffler in the percolating device, and diafiltration plate bottom is uniform-distribution with a plurality of seepage holes of leading, can make percolate by lead seepage hole effectively flow into below on the barrier sheet.Barrier sheet in the percolating device and baffler are to be made by dense PVC material, prevent that effectively percolate from permeating the ground in the soil, guaranteed the collection of percolate in the experimentation.
2. in the inner chamber of filtration unit lower end screen pack is installed, the solid silt in the percolate effectively can be stopped, make it not enter into the percolate adaptor, screen pack can regularly take out cleaning.
3. a spherical valve is installed in the inner chamber of filtration unit lower end, can controls the percolate that enters in the percolate adaptor, according to the research needs percolate sample is carried out timing, quantitative collection.
4. this experimental provision is made simply, and is easy to carry, can be used for for a long time the collection research of Abandoned Land of Mine restoration of the ecosystem original position experiment percolate.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of percolating device.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawing illustrated embodiment.
Parts are among the figure: 1 percolating device, 2 diafiltration plates, 3 support columns, 4 barrier sheets, the outlet of 5 percolates, 6 flexible pipes, 7 guiding devices, 8 porous filtering nets, 9 plastic flexible pipes, 10 filtration units, 11 top covers, 12 screen packs, 13 spherical valves, 14 percolate adaptors, 15 lead seepage hole, 16 bafflers.
As shown in Figure 1, the present invention is for being used for the experimental provision of Abandoned Land of Mine ecological recovery original position experiment percolate collection.Percolating device 1 is connected with following barrier sheet 4 by support column 3 by being positioned at top diafiltration plate 2, and front end connects baffler 16, and baffler 16 is provided with percolate outlet 5, is evenly distributed with on the diafiltration plate 2 and leads seepage hole 15; Percolate outlet 5 is connected with guiding device 7 thinner bore one ends by flexible pipe 6, and the thicker end inner chamber of guiding device 7 bores is equipped with a porous filtering net 8; The thicker end of guiding device 7 bores is connected with filtration unit 10 side mouths by plastic flexible pipe 9, and filtration unit 10 tops are equipped with a top cover 11, and the screen pack that can retract 12 is placed in the bottom of its inner chamber, and the lower end is equipped with a spherical valve 13; The lower end of filtration unit 10 is an open-end tube, and the end of this open-end tube extend into the inner chamber of percolate adaptor 14.The diafiltration plate is 1% degree of tilt and is connected with baffler, and diafiltration plate bottom is uniform-distribution with a plurality of seepage holes of leading, can make top mine waste residue and repair in the matrix percolate by lead seepage hole flow into below on the barrier sheet.Barrier sheet in the percolating device and baffler are to be made by dense PVC material, can prevent effectively that percolate from permeating the ground in the soil.Percolating device is 1% gradient and places putting into the on-the-spot plantation of Abandoned Land of Mine reparation hole during the end, have an end of percolate outlet to be positioned over lower, and the percolate that can guarantee like this to flow on the barrier sheet flows in the guiding device by the percolate outlet.A screen pack that can retract is installed in the filtration unit inner chamber, the percolate that enters the percolate adaptor is filtered, screen pack can regularly take out cleaning, prevents that solid matter is to the obstruction of filtration unit and percolate adaptor.A spherical valve is installed on the filtration unit lower ending opening pipe, in experimentation according to the research needs, can be regularly, the collection of quantitative control percolate.
At first dig at Abandoned Land of Mine reparation scene in the implementation process and put the plantation hole, plantation hole one side is dug and is put a less percolate adaptor placement hole.Percolating device is positioned in the plantation hole by 1% degree of tilt, the percolate adaptor is put into the side and is placed the hole, after percolate harvester each several part connects, the mine waste residue that experimental study is used, reparation matrix are positioned on the percolating device successively, percolating device lower end spherical valve is opened, according to the research needs, the percolate that regularly gathers in natural precipitation or the artificially-simulated rainfall process is studied.Dig at the Abandoned Land of Mine scene and to put the plantation hole, side, plantation hole is dug simultaneously and is put a less percolate adaptor and place the hole, excavates the port of a circle between two holes.1% gradient is arranged in bottom, plantation hole.Percolating device is placed on bottom, plantation hole, there is percolate to export an end and is positioned over lower, the percolate endpiece is connected with guiding device by flexible pipe, a porous filtering net (d=5mm) is installed in the guiding device inner chamber, port is connected with filtration unit by plastic flexible pipe, screen pack (d=1mm) is installed in the bottom of filtration unit inner chamber, and lower ending opening pipe port stretches into percolate adaptor inner chamber.First spherical valve on the filtration unit lower ending opening pipe cuts out before the experiment beginning, with mine tailing with repair matrix be placed on successively percolating device above, determine to repair the matrix cladding thickness according to the experimental study needs.During the experiment beginning spherical valve on the filtration unit lower ending opening pipe is opened, percolate in the Abandoned Land of Mine field repair under natural precipitation or the artificially-simulated rainfall condition is carried out controlled collection.
Apparatus of the present invention can be used for the collection of Abandoned Land of Mine restoration of the ecosystem original position experiment percolate in actual applications, and can according to the research needs to percolate carry out regularly, quantitative collection.
Claims (4)
1. one kind is used for the experimental provision that Abandoned Land of Mine is repaired the percolate collection, comprise percolating device, the diafiltration plate, support column, barrier sheet, guiding device, the porous filtering net, filtration unit, top cover, screen pack, spherical valve, the percolate adaptor, baffler is characterized in that, described percolating device (1) is connected with following barrier sheet (4) by support column (3) by being positioned at top diafiltration plate (2), front end connects baffler (16), and baffler (16) is provided with percolate outlet (5), is evenly distributed with on the diafiltration plate (2) and leads seepage hole (15); Percolate outlet (5) is connected with thinner bore one end of guiding device (7) by flexible pipe (6), and the thicker end inner chamber of guiding device (7) bore is equipped with a porous filtering net (8); The thicker end of guiding device (7) bore is connected with filtration unit (10) side mouth by plastic flexible pipe (9), filtration unit (10) top is equipped with a top cover (11), a screen pack that can retract (12) is placed in the bottom of its inner chamber, and the lower end is equipped with a spherical valve (13); The lower end of filtration unit (10) is an open-end tube, and the end of this open-end tube extend into the inner chamber of percolate adaptor (14).
2. according to claim 1ly a kind ofly repair the experimental provision that percolate gathers for Abandoned Land of Mine, it is characterized in that, described percolate endpiece is connected with guiding device by flexible pipe, a porous filtering net is installed in the guiding device inner chamber, port is connected with filtration unit by plastic flexible pipe, screen pack is installed in the bottom of filtration unit inner chamber, and lower ending opening pipe port stretches into percolate adaptor inner chamber.
3. a kind of experimental provision of repairing the percolate collection for Abandoned Land of Mine according to claim 1 is characterized in that, the diafiltration plate is 1% degree of tilt and is connected with baffler, and diafiltration plate bottom is uniform-distribution with a plurality of seepage holes of leading.
4. according to claim 1ly a kind ofly repair the experimental provision that percolate gathers for Abandoned Land of Mine, it is characterized in that, on the described filtration unit lower ending opening pipe spherical valve is installed, a screen pack that can retract is installed in the filtration unit inner chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100097483A CN103076203A (en) | 2013-01-11 | 2013-01-11 | Experimental facility for collecting leachate during mining wasteland remediation |
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| CN2013100097483A CN103076203A (en) | 2013-01-11 | 2013-01-11 | Experimental facility for collecting leachate during mining wasteland remediation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528857A (en) * | 2013-10-26 | 2014-01-22 | 桂林理工大学 | Device for sampling surface flow under plant filter strip |
| CN104990767A (en) * | 2015-07-23 | 2015-10-21 | 贵州师范大学 | Device for collecting and extracting soil solutions in karst mountain areas and using method thereof |
| CN106017986A (en) * | 2016-05-16 | 2016-10-12 | 沈阳大学 | Soil seepage fluid collecting experimental device and experimental method thereof |
| CN106066262A (en) * | 2016-06-03 | 2016-11-02 | 山西大学 | Gangue percolate harvester |
| WO2019037795A1 (en) * | 2018-02-05 | 2019-02-28 | 中国矿业大学 | Coal gangue filling coal mine goaf heavy metal ion detection and sampling system |
| CN110152364A (en) * | 2019-06-27 | 2019-08-23 | 贵州师范大学 | A kind of Karst region field liquid sampling filter device and its application method |
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| CN102063829A (en) * | 2010-12-08 | 2011-05-18 | 沈阳大学 | Experimental device for collecting solid waste filtrate |
| CN102507266A (en) * | 2011-10-06 | 2012-06-20 | 重庆大学 | Gravity flow sloping farmland in-situ soil leaching solution collector |
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2013
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Patent Citations (5)
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| CN1818603A (en) * | 2006-01-20 | 2006-08-16 | 中国科学院南京土壤研究所 | Vadose water collector indry land |
| CN101261201A (en) * | 2008-03-25 | 2008-09-10 | 北京市农林科学院 | Natural state soil leachate collecting method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528857A (en) * | 2013-10-26 | 2014-01-22 | 桂林理工大学 | Device for sampling surface flow under plant filter strip |
| CN104990767A (en) * | 2015-07-23 | 2015-10-21 | 贵州师范大学 | Device for collecting and extracting soil solutions in karst mountain areas and using method thereof |
| CN106017986A (en) * | 2016-05-16 | 2016-10-12 | 沈阳大学 | Soil seepage fluid collecting experimental device and experimental method thereof |
| CN106017986B (en) * | 2016-05-16 | 2020-06-02 | 沈阳大学 | Soil seepage liquid collection experimental device and experimental method thereof |
| CN106066262A (en) * | 2016-06-03 | 2016-11-02 | 山西大学 | Gangue percolate harvester |
| WO2019037795A1 (en) * | 2018-02-05 | 2019-02-28 | 中国矿业大学 | Coal gangue filling coal mine goaf heavy metal ion detection and sampling system |
| CN110152364A (en) * | 2019-06-27 | 2019-08-23 | 贵州师范大学 | A kind of Karst region field liquid sampling filter device and its application method |
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