CN113029869A - Three-dimensional visual simulation analysis device for pollutant leaching during backfilling of renewable solid material - Google Patents
Three-dimensional visual simulation analysis device for pollutant leaching during backfilling of renewable solid material Download PDFInfo
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- CN113029869A CN113029869A CN202110303159.0A CN202110303159A CN113029869A CN 113029869 A CN113029869 A CN 113029869A CN 202110303159 A CN202110303159 A CN 202110303159A CN 113029869 A CN113029869 A CN 113029869A
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- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
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Abstract
A three-dimensional visual simulation analysis device for pollutant leaching during backfilling of renewable solid materials is characterized in that a reservoir is arranged above a frame, an outlet of the reservoir is connected with the upper end of a water delivery hose, a water supply control device arranged on a bearing device capable of moving up and down comprises a water supply bin, and the water supply bin is provided with a water inlet, an air vent and a water outlet; the water inlet is connected with the lower end of the water delivery hose, and the vent hole is provided with a rubber plug which can block the communication between the water supply bin and the air; the underground water penetration simulation device is a box body with the top being sealable, a water pipeline is arranged at the bottom of the box body, a water outlet of the water supply bin is communicated with a water pipeline interface, and a vent of the water supply bin is communicated with a second interface of the water pipeline; the box top is equipped with the box air vent, and the box lateral wall arranges a plurality of not co-altitude sampling holes and is furnished with water level observation well to be equipped with the box delivery port at the top of lateral wall, the box delivery port communicates with waste liquid collector. The invention has the advantages of simple structure, high efficiency, high automation degree and good simulation effect.
Description
Technical Field
The invention belongs to the field of toxicity leaching analysis devices for renewable solid waste materials, and particularly relates to a three-dimensional visual simulation device for leaching environmental pollutants in underground water in a resource utilization process of renewable solid waste materials.
Background
With the increase of population in China, the enlargement of urban area and the increasing improvement of living standard of people, the yield of domestic garbage is also increased year by year. The incineration is advocated vigorously by governments by virtue of the advantages of effectively reducing the volume and the quality of the household garbage, and increasingly becomes the mainstream technology for treating the household garbage. However, incineration is not terminal treatment, still generates incineration residues with certain quality, and under the background of increasing shortage of land resources, the traditional landfill technology cannot meet the treatment requirement of the residues. A great deal of research shows that the treated incineration residue as a renewable solid waste material has the advantages of good stability, low density, relatively uniform particle size distribution and the like, and the physical properties of the incineration residue are very similar to those of natural aggregate. At present, the residue is treated and widely used in the fields of road backfill and the like as renewable solid waste. However, the solid waste residue contains a plurality of heavy metals and a large amount of dissolved salts, and under the capillary action of underground water, pollutants migrate to pollute surrounding sensitive receptors, so that a reasonable evaluation on the static and dynamic environmental influence of the pollutants in resource utilization is needed.
The resource utilization of solid wastes is in a complex and various scene, and the leaching condition of pollutants in the solid wastes under different underground water levels and even the leaching condition under the flowing of underground water is often required to be simulated. On the other hand, the research on the leaching rule of the renewable aggregate in the underground water is relatively less, and the existing device widely has the problems of single simulation scene and complex operation. Therefore, it is necessary to design a set of experimental device for simulating heavy metal leaching of renewable solid waste materials under the action of underground water to evaluate the pollution condition of the renewable solid waste materials to the underground water and soil. Although the research on the leaching of pollutants from renewable materials exists in China, a device which is convenient to operate, high in automation degree and capable of simulating various scenes is lacked.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the three-dimensional visual simulation analysis device for leaching the pollutants when the renewable solid material is backfilled, which has the advantages of simple structure, high efficiency, high automation degree and good simulation effect.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a three-dimensional visual simulation analysis device for pollutant leaching during backfilling of renewable solid materials comprises a frame, a reservoir, a peristaltic pump, a water delivery hose, a water supply control device, an underground water permeation simulation device and a waste liquid collector, wherein the reservoir is arranged above the frame, an outlet of the reservoir is connected with the upper end of the water delivery hose, the water supply control device arranged on a bearing device capable of moving up and down comprises a water supply bin, and the water supply bin is provided with a water inlet, an air vent and a water outlet; the water inlet is connected with the lower end of the water delivery hose, and the vent hole is provided with a rubber plug to block the communication between the water supply bin and air; the underground water penetration simulation device is a box body with the top capable of being sealed, a water pipeline is arranged at the bottom of the box body, a water outlet of the water supply bin is communicated with a water pipeline interface, a box body vent hole is formed in the top of the box body, a plurality of sampling holes with different heights are arranged on the side wall of the box body, a water level observation well is arranged on the side wall of the box body, a box body water outlet is formed in the top of the side wall, and the box body water outlet is communicated with a waste.
Furthermore, the reservoir that is located whole device top is kept apart into four little reservoirs with the water-stop sheet to realize the simulation in the time under the different quality of water operating modes, and all be furnished with the apron on every little reservoir upper portion, leave a little round hole in the middle of the apron, be used for inserting the water delivery hose.
Still further, the three-dimensional visual simulation analysis device comprises two sets of bearing devices and four water supply bins, wherein the two sets of bearing devices are distributed on the two sides of the frame in a left-right mode, and the two water supply bins are arranged on the one set of bearing devices; the bottom of the box body is provided with four water pipeline interfaces, and one water supply bin is communicated with one water pipeline interface.
Further, bear the device and include brace table, dead lever, bracing piece and round hole, on the dead lever was fixed in the stainless steel frame, the round hole was used for placing water supply control device's delivery port, and upper portion brace table passes through the lantern ring with the dead lever and is connected, and the bracing piece is fixed in upper portion brace table, passes through threaded connection with lower part brace table, and the bracing piece bottom is furnished with micro motor, and micro motor drives the bracing piece rotation, can realize reciprocating of upper portion brace table to change water supply control device's height. In addition, the up-and-down movement can be realized by using a cylinder or an electromagnetic driving mode.
Preferably, the water pipeline comprises 3 branch pipes, and a plurality of water seepage small holes are uniformly distributed on the branch pipes to realize uniform water supply.
And a salinity sensor is arranged in the box body with the corresponding height of the sampling hole, so that the real-time monitoring of the pollutant migration and conversion process is realized.
The inside cross baffle that uses of box divide into four square spaces, carries out the simulation experiment simultaneously.
And the bottom of the frame is provided with a hub and a braking device.
The invention can simulate the pollutant infiltration leaching condition of the renewable material under two different states of underground water: (1) the flow state of underground water: the air vent and the water outlet of the underground water seepage simulation device are opened by the air vent of the closed water supply control device, underground water sequentially passes through the water supply control device, the simulation device and the waste liquid collecting device under the driving of the peristaltic pump to form flowing, in the underground water seepage simulation device, underground water with different heights can be extracted through the sampling holes to be detected, and meanwhile, the salt sensor monitors the migration change of ions in the renewable solid waste in real time. In this case, the flow and the open-close state of the peristaltic pump can be changed to simulate the leaching condition under different flow rates and different contact times. (2) Different groundwater levels: the air vent and the water outlet of the underground water seepage simulation device are closed, the air vent of the water supply control device is opened, the water supply control device and the sealed underground water seepage simulation device form a U-shaped pipe structure, the height of the water supply control device is changed, and the underground water level in the underground water seepage simulation device is changed along with the pressure difference. Under the condition, a pressure sensor can be arranged in the water level observation well, the pressure sensor and the micro motor are connected with the control system, and when the groundwater level in the groundwater seepage simulation device needs to be changed, the control system adjusts the height of the water supply control device through the control motor.
The invention has the following beneficial effects: simple structure, efficient, degree of automation is high, simulation effect is good, leaches the research to the toxicity when can regenerate solid useless and groundwater contact very big help. The invention adopts the closed reservoir to efficiently simulate the anaerobic environment of the underground water; the provided bearing device and the vent holes of the underground water permeation simulation device control the simulation state of the whole device, so that different simulation states can be switched conveniently; the peristaltic pump can change the flow rate of the groundwater, and the bearing device can change the water level of the groundwater, so that the simulation experiment research of the control variable can be met; the device can be set into four independent simulation devices, so that the high efficiency of the experiment is reflected; the simulation device can sample water bodies with different heights and observe the migration condition of salt, so that the continuous monitoring effect is realized.
Drawings
Fig. 1 is a schematic view of the overall structure of the simulation experiment apparatus of the present invention.
FIG. 2 is a schematic view of the groundwater infiltration simulation apparatus of the present invention.
Fig. 3 is a top view of the arrangement of the bottom water pipes of the groundwater infiltration simulation device according to the present invention.
Fig. 4 is a schematic view of a carrying device according to the present invention.
FIG. 5 is a schematic view of a water supply control apparatus according to the present invention.
Wherein, 1, a water reservoir; 2. a water-stop sheet; 3. a water delivery hose; 4. a peristaltic pump; 5. a water supply control device; 6. a groundwater infiltration simulation device; 7. a waste liquid collector; 8. a carrying device; 9. a micro motor; 10. a control system; 11. a stainless steel frame; 12. a support plate; 13. a hub; 14. a braking device; 51. a water inlet; 52. a vent hole; 53. a valve; 54. a water outlet; 61. a water pipeline interface; 62. a water outlet of the box body; 63. a sampling hole; 64. sealing the cover plate; 65. a tank vent; 66. a water level observation well; 67. a salinity sensor; 81. a support bar; 82. a support table; 83 fixing the rod; 84. a collar; 85. a circular hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, a three-dimensional visual simulation analysis device for pollutant leaching during backfilling of renewable solid materials can be used for carrying out a sink permeation test, and comprises a reservoir 1, a peristaltic pump 4, a water delivery hose 3, a water supply control device 5, a stainless steel frame 11, an underground water permeation simulation device 6 and a waste liquid collector 7, wherein the reservoir 1 above the whole device is separated into four small reservoirs by water baffles 2 so as to realize simultaneous simulation under different water quality working conditions, a cover plate is arranged at the upper part of each small reservoir, and a small round hole is reserved in the middle of each cover plate and used for inserting the water delivery hose 3, so that the pollution of atmospheric components to leaching media can be reduced; the water supply control device 5 arranged on the bearing device 8 capable of moving up and down comprises two water supply bins, and each water supply bin is provided with a water inlet 51, an air vent 52 and a water outlet 54; wherein, the water inlet 51 is communicated with the small reservoir by the water pipeline 3, the peristaltic pump 4 provides power, and the vent 52 is provided with a rubber plug to block the communication between the water supply bin and the air. Bear device 8 and contain a supporting bench 82, the dead lever 83, bracing piece 81 and round hole 85, dead lever 83 is fixed in on the stainless steel frame 11, round hole 85 is used for placing water supply control device 5's delivery port 54, an upper portion supporting bench passes through lantern ring 84 with dead lever 81 and is connected, bracing piece 81 is fixed in an upper portion supporting bench, pass through threaded connection with a lower part supporting bench, bracing piece 81 bottom is furnished with micro motor 9, micro motor 9 drives the bracing piece 81 rotation, can realize reciprocating of an upper portion supporting bench, thereby change the height that water supply control device 5 put. The groundwater seepage simulation device 6 is a box body with a sealable top, four water pipelines are arranged at the bottom, a box body vent hole 65 is arranged at the top, a plurality of sampling holes 63 with different heights are arranged on the side wall, a water level observation well 66 is arranged, and a box body water outlet 62 is arranged at the top of the side wall; the water pipeline comprises 3 branch pipes, and a plurality of small water seepage holes are uniformly distributed on the branch pipes to realize uniform water supply; the sampling holes 63 are sealed by rubber plugs, each sampling hole 63 is provided with a special luer syringe for sampling water, and a salinity sensor 67 is arranged at the corresponding height of each sampling hole, so that the real-time monitoring of the migration and transformation process of pollutants is realized; rubber stoppers are arranged on the air vent 52 and the water outlet 62 of the box body, so that the air vent and the water outlet can be sealed; when a plurality of groups of experiments are needed, the inside of the experiment box can be divided into four square spaces by the cross partition plate, and the simulation experiment is carried out simultaneously.
Example 1
The three-dimensional visual simulation device for leaching environmental pollutants in underground water in the process of road backfilling and utilizing renewable solid waste materials mainly realizes the analysis simulation of renewable solid waste under the action of underground water scouring and permeation when the renewable solid waste is contacted with the underground water environment and under the action of underground water leaching and flushing, can extract water samples with different heights, simultaneously continuously monitors the concentration change of the pollutants with different heights, analyzes the distribution and the conversion of the environmental pollutants in different time and space, can adjust the flow of a peristaltic pump, and explores the leaching influence of the underground water permeation speed on the environmental pollutants.
Before the experiment begins, the reservoir 1 is filled with underground water simulation water; coarse sand is laid at the bottom of the underground water permeation simulation device 6, the thickness of the coarse sand is 3-5mm, renewable solid waste to be investigated is laid at the upper part of the coarse sand, a sampling hole 63 of the coarse sand is sealed, and a salt sensor 67 is buried at the same height of the sampling hole 63; the water supply control device 5 is arranged on the bearing device 8 and closes the air vent 52 of the water supply control device; the water storage tank 1, the water inlet 51, the water outlet 54, the water pipeline 61, the water outlet 62 and the waste liquid collector 7 are connected through the water delivery hose 3, the inner diameter of the water delivery hose 3 is consistent with the outer diameter of the pipeline, and the sealing performance during connection is guaranteed. When the experiment starts, the simulated water in the reservoir 1 is driven by the peristaltic pump 4 to sequentially enter the water supply control device 5 and the water pipe 61 along the water delivery hose 3, and then permeates into the groundwater seepage simulation device 6 through the micropores on the water pipe 61 and slowly permeates under the action of the peristaltic pump 4 until the water level reaches the water outlet 62 and flows into the waste liquid collector 7. In the groundwater infiltration analogue means 6, accessible thief hole 63 draws different height by the contaminated groundwater and detects, and salinity sensor 67 real-time supervision solid waste in the migration of ion changes simultaneously. In the experimental process, the flow and the opening and closing states of the peristaltic pump 4 can be changed, and the leaching condition of the environmental pollutants under different flow rates of underground water and different contact time with solid wastes is simulated and analyzed.
Example 2
A three-dimensional visual simulation device for leaching environmental pollutants in underground water in the process of recycling renewable solid waste materials is characterized in that a water supply control device and a sealed underground water permeation simulation device form a U-shaped pipe structure, the underground water level with a certain height is maintained under the action of atmospheric pressure, the simulation of static diffusion of the environmental pollutants in renewable solid waste can be realized under the underground water level with a specific height, water samples with different heights can be extracted, the concentration change of the pollutants with different heights can be continuously monitored, the distribution and the conversion of the environmental pollutants in different time and space can be analyzed, the height of the underground water level can be automatically and controllably adjusted through a micro motor, and the leaching influence of different underground water levels on the environmental pollutants in the solid waste is explored.
Before the experiment begins, the reservoir 1 is added with underground water simulation water; coarse sand is laid at the bottom of the underground water permeation simulation device 6, the thickness of the coarse sand is 3-5mm, renewable solid waste to be investigated is laid at the upper part of the coarse sand, a sampling hole 63, a water outlet 62 and a vent hole 65 of the coarse sand are sealed, and a salt sensor 67 is buried at the same height of the sampling hole 63; the control system 10 is respectively connected with the pressure sensor in the observation well 66 and the micro motor 9; the water storage tank 1, the water inlet 51, the water outlet 54, the water pipeline 61, the water outlet 62 and the waste liquid collector 7 are connected through the water delivery hose 3, the inner diameter of the water delivery hose 3 is consistent with the outer diameter of the pipeline, and the sealing performance during connection is guaranteed. When the experiment begins, groundwater in the reservoir 1 is driven by the peristaltic pump 4 to enter the water supply control device 5 along the water delivery hose 3 in sequence, the water pipe 61 permeates the groundwater seepage simulation device 6 through micropores on the water pipe 61 and slowly permeates under the action of the water head of the water supply control device 5 until the groundwater penetrates to the maximum water level which can be reached under the water head, and the peristaltic pump needs to ensure that simulated groundwater in the water supply control device is full of the water supply bin. In groundwater infiltration analogue means 6, accessible thief hole 63 draws different height groundwater and detects, and salinity sensor 67 monitors the migration of ion in the renewable aggregate simultaneously and changes simultaneously. When the underground water level in the underground water seepage simulation device 6 needs to be changed, the control system 10 is opened, the required water level height is input, the micro motor 9 is controlled to rotate to change the water head of the water supply control device 5, and then the underground water level in the renewable aggregate simulation device 6 is changed.
According to the invention, the design is reasonable, the operation is simple, the peristaltic pump is arranged in front of the water supply control device, and the flow rate of the percolate is accurately controlled; the groundwater penetration simulation device is provided with a water pipeline to realize uniform penetration of aggregate; the four groove bodies are independently designed, so that a plurality of groups of permeation experiments under different experimental conditions can be simulated at the same time, the efficiency is high, and the practicability is high; the sampling holes are arranged at different heights of the underground water permeation simulation device, so that the sample is sampled, and the device is simple to operate and small in error.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, which are intended for purposes of illustration only. The scope of the present invention should not be construed as being limited to the particular forms set forth in the examples, but rather as being defined by the claims and the equivalents thereof which can occur to those skilled in the art upon consideration of the present inventive concept.
Claims (8)
1. A three-dimensional visual simulation analysis device for pollutant leaching during backfilling of renewable solid materials is characterized by comprising a frame, a water storage tank, a peristaltic pump, a water delivery hose, a water supply control device, an underground water permeation simulation device and a waste liquid collector, wherein the water storage tank is arranged above the frame, an outlet of the water storage tank is connected with the upper end of the water delivery hose, the water supply control device arranged on a bearing device capable of moving up and down comprises a water supply bin, and the water supply bin is provided with a water inlet, an air vent and a water outlet; the water inlet is connected with the lower end of the water delivery hose, and the vent hole is provided with a rubber plug to block the communication between the water supply bin and air; the underground water penetration simulation device is a box body with a sealable top, a water pipeline is arranged at the bottom of the box body, and a water outlet of the water supply bin is communicated with a water pipeline interface; the device comprises a box body and is characterized in that a box body vent hole is formed in the top of the box body, a plurality of sampling holes with different heights are arranged on the side wall of the box body, a water level observation well is arranged on the side wall of the box body, a box body water outlet is formed in the top of the side wall, and the box body water outlet is communicated with a waste liquid collector.
2. The apparatus for the three-dimensional visual simulation analysis of contaminant extraction during the backfilling of renewable solid materials of claim 1 wherein the reservoir above the whole apparatus is divided into four small reservoirs by water-stop sheets to achieve simultaneous simulation under different water quality conditions, and each small reservoir is provided with a cover plate on the top, leaving a small circular hole in the middle of the cover plate for inserting a water hose.
3. The three-dimensional visual simulation analysis device for pollutant leaching during backfilling of the renewable solid material according to claim 1 or 2, wherein the three-dimensional visual simulation analysis device comprises two sets of bearing devices and four water supply bins, the two sets of bearing devices are distributed on the two sides of the frame in the left-right direction, and the two water supply bins are arranged on the one set of bearing devices; the bottom of the box body is provided with four water pipeline interfaces, and one water supply bin is communicated with one water pipeline interface.
4. The three-dimensional visual simulation analysis device for contaminant leaching during backfilling of renewable solid materials of claim 1 or 2, wherein the bearing device comprises a support platform, a fixed rod, a support rod and a round hole, the fixed rod is fixed on the stainless steel frame, the round hole is used for placing a water outlet of the water supply control device, the upper support platform is connected with the fixed rod through a lantern ring, the support rod is fixed on the upper support platform and is in threaded connection with the lower support platform, a micro motor is arranged at the bottom of the support rod, the micro motor drives the support rod to rotate, the up-and-down movement of the upper support platform can be realized, and therefore the height of.
5. The three-dimensional visual simulation analysis device for contaminant leaching during backfilling of renewable solid materials of claim 1 or 2, wherein the water pipeline comprises 3 branch pipes, and a plurality of water seepage small holes are uniformly distributed on the branch pipes to realize uniform water supply.
6. The three-dimensional visual simulation analysis device for contaminant leaching during backfilling of renewable solid materials of claim 1 or 2, wherein a salinity sensor is arranged in the box body with the corresponding height of the sampling hole, so as to realize real-time monitoring of the contaminant migration and transformation process.
7. The apparatus for the three-dimensional visual simulation analysis of contaminant leaching during the backfilling of solid renewable materials according to claim 1 or 2, wherein the inside of the box body is divided into four square spaces by a cross partition plate, and simulation experiments are simultaneously performed.
8. The apparatus for the three-dimensional visual simulation analysis of contaminant leaching during the backfilling of renewable solid materials of claim 1 or 2, wherein the bottom of said frame is provided with a hub and a braking device.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640501A (en) * | 2021-10-13 | 2021-11-12 | 四川省公路规划勘察设计研究院有限公司 | Bedding rock slope simulation test device under coupling effect of rainfall and underground water |
| CN114527022A (en) * | 2022-02-15 | 2022-05-24 | 山东高速集团有限公司 | Red mud-based cementing material road environment evaluation simulation system and method |
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2021
- 2021-03-22 CN CN202110303159.0A patent/CN113029869A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640501A (en) * | 2021-10-13 | 2021-11-12 | 四川省公路规划勘察设计研究院有限公司 | Bedding rock slope simulation test device under coupling effect of rainfall and underground water |
| CN114527022A (en) * | 2022-02-15 | 2022-05-24 | 山东高速集团有限公司 | Red mud-based cementing material road environment evaluation simulation system and method |
| CN114527022B (en) * | 2022-02-15 | 2024-04-26 | 山东高速集团有限公司 | Red mud-based cementing material road environment evaluation simulation system and method |
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