CN110907330A - Artificial rainfall simulation device for phosphogypsum pile - Google Patents
Artificial rainfall simulation device for phosphogypsum pile Download PDFInfo
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- CN110907330A CN110907330A CN201911239777.2A CN201911239777A CN110907330A CN 110907330 A CN110907330 A CN 110907330A CN 201911239777 A CN201911239777 A CN 201911239777A CN 110907330 A CN110907330 A CN 110907330A
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- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title claims abstract description 107
- 238000004088 simulation Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 133
- 238000003860 storage Methods 0.000 claims abstract description 33
- 238000012806 monitoring device Methods 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000011045 prefiltration Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 9
- 231100000719 pollutant Toxicity 0.000 abstract description 9
- 230000008595 infiltration Effects 0.000 abstract description 7
- 238000001764 infiltration Methods 0.000 abstract description 7
- 238000011160 research Methods 0.000 abstract description 5
- 241001365789 Oenanthe crocata Species 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- Health & Medical Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses an artificial rainfall simulation device for a phosphogypsum pile, which comprises a water storage device, a water delivery pipe, a rainfall bracket, a monitoring device and a collecting pool, wherein the rainfall bracket is fixedly connected with the ground, the water delivery pipe is communicated with the water storage device, the water delivery pipe is fixedly communicated with a plurality of rainfall sprayers, the rainfall sprayers are arranged above the phosphogypsum pile and can drop water in the water storage device into the phosphogypsum pile, the monitoring device is positioned in the phosphogypsum pile and is used for monitoring rainfall conditions and deformation conditions of the phosphogypsum pile, the monitoring device is in signal connection with a controller, and the collecting pool is positioned at one side of the phosphogypsum pile and is used for collecting rainwater flowing through the phosphogypsum pile; the device simulates the actual rainfall condition by arranging the rainfall spray head above the phosphogypsum pile, monitors the deformation condition of the phosphogypsum pile and collects rainwater flowing through the phosphogypsum pile for sampling detection, thereby realizing the research on the infiltration rule of the phosphogypsum pile, the deformation failure mode which possibly occurs and the change rule of pollutants in surface runoff near the phosphogypsum pile.
Description
Technical Field
The invention relates to the technical field of artificial rainfall simulation, in particular to an artificial rainfall simulation device for a phosphogypsum pile.
Background
At present, the global phosphorus chemical industry takes phosphoric acid production as a starting point, and although two technical routes of thermal phosphoric acid and wet phosphoric acid exist, the two technical routes are single-component utilization of phosphorus pentoxide, and resource waste and environmental pollution caused by the phosphorus pentoxide are the first fingers in the chemical industry. A large amount of by-products, namely phosphogypsum, are produced in the production process of phosphorus chemical enterprises, and statistics shows that the amount of the phosphogypsum accumulated in China is nearly 3 hundred million tons. The phosphogypsum contains a large amount of pollutants such as phosphorus, fluorine and the like, and if the seepage-proofing treatment is not proper, under the action of rainwater washing, not only the phosphogypsum stack is subjected to instability to cause unnecessary loss, but also the pollutants enter the water environment along with rainwater to cause pollution which is difficult to reverse on surface water and underground water. In addition, the rainwater carries pollutants such as phosphorus, fluorine and the like through scouring the yard and the factory area of the phosphorus chemical industry enterprise, and the formed non-point runoff causes the phenomena of 'small rain pollution and heavy storm pollution'. Therefore, it is important to research the infiltration rule and possible deformation failure mode of the phosphogypsum pile under rainfall condition and the change rule of pollutants in surface runoff near the phosphogypsum yard.
In the past, the positioning observation is usually carried out near a phosphogypsum storage yard, which is a time-consuming and labor-consuming method, regular effective data is difficult to obtain, and rainfall events are difficult to control. And present artificial rainfall simulation device, the structure sets up comparatively singly, can't be used for the influence of rainfall simulation to the ardealite heap body, and the rainfall condition can't be regulated and control, and rainfall simulation is showing with actual rainfall condition difference, leads to the data distortion that obtains, can't satisfy the experimental study needs.
Therefore, the artificial rainfall simulation device capable of simulating the infiltration rule and the possible deformation and damage mode of the phosphogypsum pile and the change rule of pollutants in surface runoff near the phosphogypsum pile under the actual rainfall condition is urgently needed in the field.
Disclosure of Invention
The invention aims to provide an artificial rainfall simulation device for a phosphogypsum pile, which is used for solving the problems in the prior art and can simulate the infiltration rule and the possible deformation failure mode of the phosphogypsum pile and the change rule of pollutants in surface runoff near the phosphogypsum pile under the actual rainfall condition.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an artificial rainfall simulation device for a phosphogypsum pile, which comprises a water storage device, a water delivery pipe, a rainfall bracket, a monitoring device and a collecting pool, wherein the rainfall bracket is fixedly connected with the ground, the water delivery pipe is communicated with the water storage device, the water delivery pipe is fixedly communicated with a plurality of rainfall spray heads, the rainfall spray heads are arranged above the phosphogypsum pile and can drop water in the water storage device into the phosphogypsum pile, the monitoring device is positioned in the phosphogypsum pile and is used for monitoring rainfall conditions and deformation conditions of the phosphogypsum pile, the monitoring device is in signal connection with a controller, and the collecting pool is positioned at one side of the phosphogypsum pile and is used for collecting rainwater flowing through the phosphogypsum pile.
Preferably, the water pipe is communicated with a plurality of branch pipes, each branch pipe comprises a first branch pipe and a second branch pipe, each rainfall sprayer comprises a first sprayer and a second sprayer, the first branch pipes are uniformly and fixedly communicated with the first sprayers, the second branch pipes are uniformly and fixedly communicated with the second sprayers, and the first branch pipes and the second branch pipes are arranged at intervals.
Preferably, the front end of the first branch flow pipe is provided with a first control valve, the first control valve can control the circulation of the water body on the first branch flow pipe, the front end of the second branch flow pipe is provided with a second control valve, and the second control valve can control the circulation of the water body on the second branch flow pipe.
Preferably, the rainfall support comprises a canopy support and a canopy, the canopy support is used for fixing the water delivery pipe, and the canopy is fixedly covered on the top of the canopy support.
Preferably, the canopy passes through steel wire fixed connection in on the canopy support, the canopy support is the frame construction that the aluminum alloy welding formed, the material of canopy is the transparent flexible glue of PVC.
Preferably, the water storage device includes storage water tank, water pump, check valve, flowmeter, manometer and filter, the raceway is including water pipes and the main water pipe that the intercommunication set up, main water pipe and each the lateral flow pipe intercommunication, the one end intercommunication of aqueduct the main water pipe, the other end intercommunication of aqueduct the water storage device, the water pump with the storage water tank intercommunication, the water pump, the manometer, the check valve, the flowmeter and the filter all sets firmly on the aqueduct, the flowmeter is used for real-time supervision rainfall in-process water consumption, the filter is used for intercepting aquatic impurity in order to reduce the jam of rainfall shower nozzle, the manometer is used for measuring the pressure in the aqueduct, the check valve is used for preventing the refluence of aqueduct.
Preferably, the water pump is a variable-frequency self-priming booster pump, the suction lift of the water pump is more than 1m, and the lift of the water pump is not less than 60 m; the flowmeter is a float plastic pipe flowmeter; the filter is a large-flow prefilter.
Preferably, the monitoring device comprises a rain gauge, an osmometer, a water content sensor, a displacement sensor and a camera, wherein the rain gauge is arranged below the rainfall spray head and used for measuring rainfall intensity, a pipeline is vertically and fixedly arranged in the phosphogypsum stack, the osmometer is fixedly arranged in the pipeline and used for monitoring pore water pressure in the phosphogypsum stack, the water content sensor and the displacement sensor are buried in the phosphogypsum stack, the water content sensor is used for measuring the water content of the phosphogypsum stack, the displacement sensor is used for monitoring the height change of the phosphogypsum stack, and the camera is used for shooting the deformation condition of the phosphogypsum stack.
Preferably, the rain gauge is a tipping bucket type rain gauge, and the osmometer is a PWS vibrating wire osmometer.
Preferably, a simulated pavement is arranged in the circumferential direction of the phosphogypsum pile, drainage ditches are arranged on two sides of the simulated pavement and are communicated with the collecting tank, a plurality of grooves are uniformly formed in the drainage ditches, and the grooves are used for collecting rainwater with the phosphogypsum.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides an artificial rainfall simulation device for a phosphogypsum pile, which comprises a water storage device, a water delivery pipe, a rainfall bracket, a monitoring device and a collecting pool, wherein the rainfall bracket is fixedly connected with the ground, the water delivery pipe is communicated with the water storage device, the water delivery pipe is fixedly communicated with a plurality of rainfall nozzles, the rainfall nozzles are arranged above the phosphogypsum pile and can drop water in the water storage device into the phosphogypsum pile, the monitoring device is positioned in the phosphogypsum pile and is used for monitoring rainfall conditions and deformation conditions of the phosphogypsum pile, the monitoring device is in signal connection with a controller, and the collecting pool is positioned at one side of the phosphogypsum pile and is used for collecting rainwater flowing through the phosphogypsum pile; the device simulates the actual rainfall condition by arranging the rainfall spray head above the phosphogypsum pile, monitors the deformation condition of the phosphogypsum pile and collects rainwater flowing through the phosphogypsum pile for sampling detection, thereby realizing the research on the infiltration rule of the phosphogypsum pile, the deformation failure mode which possibly occurs and the change rule of pollutants in surface runoff near the phosphogypsum pile.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an artificial rainfall simulation device for a phosphogypsum pile in the invention;
FIG. 2 is a schematic view of the connection between the water storage device and the rain spray according to the present invention;
FIG. 3 is a schematic view of the distribution of the collection tank and drainage ditch in the present invention;
in the figure: 1-a rainfall support, 2-a rainfall spray head, 3-a water pipe, 4-a phosphogypsum pile, 5-a water storage device, 6-a collection pool, 7-a first branch pipe, 8-a second branch pipe, 9-a first spray head, 10-a second spray head, 11-a first control valve, 12-a second control valve, 13-a water storage tank, 14-a water pump, 15-a check valve, 16-a flowmeter, 17-a pressure gauge, 18-a filter, 19-a water guide pipe, 20-a main water pipe, 21-a rain gauge, 22-a osmometer, 23-a camera, 24-a simulated pavement, 25-a drainage ditch and 26-a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an artificial rainfall simulation device for a phosphogypsum pile, which aims to solve the problems in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides an artificial rainfall simulation device for a phosphogypsum pile, which comprises a water storage device 5, a water delivery pipe 3, a rainfall support 1, a monitoring device and a collecting pool 6, wherein the rainfall support 1 is fixedly connected with the ground, the water delivery pipe 3 is communicated with the water storage device 5, the water delivery pipe 3 is fixedly communicated with a plurality of rainfall sprayers 2, the rainfall sprayers 2 are arranged above the phosphogypsum pile 4 and can drop water in the water storage device 5 into the phosphogypsum pile 4, the monitoring device is positioned in the phosphogypsum pile 4 and is used for monitoring rainfall conditions and deformation conditions of the phosphogypsum pile 4, the monitoring device is in signal connection with a controller, and the collecting pool 6 is positioned at one side of the phosphogypsum pile 4 and is used for collecting rainwater flowing through the phosphogypsum pile 4.
The invention provides an artificial rainfall simulation device for phosphogypsum piles, which comprises the steps of firstly selecting a test area, arranging a rainfall bracket 1, placing a phosphogypsum pile 4 below the rainfall bracket 1, arranging a collecting pool 6, arranging a monitoring device in the rainfall area, then opening a water conveying pipe 3, leading water in a water storage device 5 to enter a rainfall spray head 2 through the water conveying pipe 3, further realizing artificial rainfall, transmitting data monitored by the monitoring device to a control device, collecting rainwater with the phosphogypsum by the collecting pool 6, realizing the research on the infiltration rule and the possible deformation failure mode of the phosphogypsum pile 4 by an operator according to the collected data, simulating the actual rainfall condition by arranging a rainfall spray head 2 above the phosphogypsum pile 4, monitoring the deformation condition of the phosphogypsum pile 4 and collecting rainwater flowing through the phosphogypsum pile 4 for sampling detection, the research on the infiltration rule and the possible deformation failure mode of the phosphogypsum pile 4 and the change rule of pollutants in surface runoff near the phosphogypsum pile is realized.
In this embodiment, conduit 3 is last to communicate there are a plurality of tributary pipes, as shown in fig. 2, the tributary pipe includes first tributary pipe 7 and second tributary pipe 8, rainfall shower nozzle 2 includes first shower nozzle 9 and second shower nozzle 10, evenly fix a plurality of first shower nozzles 9 of intercommunication on the first tributary pipe 7, evenly fix a plurality of second shower nozzles 10 of intercommunication on the second tributary pipe 8, first tributary pipe 7 and second tributary pipe 8 interval set up, through setting up first shower nozzle 9 and second shower nozzle 10, the spout diameter of two kinds of shower nozzles is different, the water yield is also different, and then different rainfall and rainfall intensity have been realized, accord with the characteristics of natural rainfall more.
In this embodiment, the front end of first lateral flow pipe 7 is equipped with first control valve 11, the circulation of water on first lateral flow pipe 7 can be controlled to first control valve 11, the front end of second lateral flow pipe 8 is equipped with second control valve 12, the circulation of water on second lateral flow pipe 8 can be controlled to second control valve 12, through setting up first control valve 11 and second control valve 12, and then guaranteed opening and the different compound mode of closed rainfall shower nozzle 2, make the authenticity of simulation natural rainfall better.
In this embodiment, rainfall support 1 includes canopy support and canopy, and the canopy support is used for fixed raceway 3, and the canopy is fixed to be covered at the top of canopy support, and the setting of canopy support has improved the fixed stability of raceway 3, and the setting of canopy has guaranteed that test data does not receive external environment's influence, has improved test data's accuracy.
In this embodiment, the canopy passes through steel wire fixed connection on the canopy support, and the canopy support is the frame construction that the aluminum alloy welding formed, has improved the rigidity and the mechanical properties of canopy support, and the material of canopy is the transparent flexible glue of PVC, has realized the observability to the rainfall condition.
In this embodiment, the water storage device 5 includes a water storage tank 13, a water pump 14, a check valve 15, a flow meter 16, a pressure gauge 17 and a filter 18, the water delivery pipe 3 includes a water conduit 19 and a main water conduit 20 which are arranged in a communicating manner, the main water conduit 20 is communicated with each branch conduit, one end of the water conduit 19 is communicated with the main water conduit 20, the other end of the water conduit is communicated with the water storage device 5, the water storage tank 13 is communicated with the water pump 14, the pressure gauge 17, the check valve 15, the flow meter 16 and the filter 18 are all fixed on the water conduit 19, the flow meter 16 is used for monitoring the water consumption in the rainfall process in real time, the filter 18 is used for intercepting impurities in water to reduce the blockage of the rainfall spray head, the pressure gauge 17 is used for measuring the pressure in the water conduit 19, the check valve 15 is used for preventing the backflow of the water, the automatic control of the water in the water storage tank 13 is improved.
In this embodiment, the water pump 14 is a variable-frequency self-priming booster pump, the suction lift of the water pump 14 is greater than 1m, and the lift of the water pump 14 is not less than 60 m; the pressure of water for artificial rainfall is improved by adopting the variable-frequency self-priming booster pump, and the flowmeter 16 is a float plastic pipe flowmeter, so that the accuracy of flow monitoring is improved; the filter 18 is a large-flow pre-filter, so that the filtering effect is improved, and the circulation of rainfall water is ensured.
In this embodiment, the monitoring device includes a rain gauge 21, an osmometer 22, a water content sensor, a displacement sensor and a camera 23, the rain gauge 21 is disposed below the rainfall sprayer 2 and is used for measuring rainfall intensity, a pipeline is vertically and fixedly arranged inside the phosphogypsum stack 4, the osmometer 22 is fixedly arranged in the pipeline, the osmometer 22 is used for monitoring pore water pressure inside the phosphogypsum stack 4, the water content sensor and the displacement sensor are both embedded inside the phosphogypsum stack 4, the water content sensor is used for measuring the water content of the phosphogypsum stack 4, the displacement sensor is used for monitoring height change of the phosphogypsum stack 4, the camera 23 is used for shooting deformation condition of the phosphogypsum stack 4, by adopting the rain gauge 21, the osmometer 22, the water content sensor, the displacement sensor and the camera 23, measurement of deformation data of the phosphogypsum stack 4 is realized, and the automation degree of measurement is, the accuracy of the measured data is improved.
In this embodiment, the rain gauge 21 is a skip rain gauge, which improves the convenience of field installation, and the osmometer 22 is a PWS vibrating wire osmometer, which improves the convenience of data monitoring.
In this embodiment, the circumference of phosphogypsum heap 4 is provided with simulation road surface 24, the both sides of simulation road surface 24 all are equipped with escape canal 25, escape canal 25 is used for communicating with collecting pit 6, evenly set up a plurality of recesses 26 in the escape canal 25, recess 26 is used for gathering the rainwater that has the phosphogypsum, the protection to environmental pollution has been realized through setting up collecting pit 6, the setting up of escape canal 25 makes the rainwater that contains the phosphogypsum can flow into the collecting pit according to the route, environmental pollution has been reduced, the setting up of recess 26 makes the collection to test data more convenient.
The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (10)
1. The utility model provides a rainfall simulation device for ardealite heap which characterized in that: the device comprises a water storage device, a water delivery pipe, a rainfall support, a monitoring device and a collecting pool, wherein the rainfall support is fixedly connected with the ground, the water delivery pipe is communicated with the water storage device, a plurality of rainfall spray heads are fixedly communicated on the water delivery pipe and are used for being arranged above a phosphogypsum pile and being capable of dropping water in the water storage device into the phosphogypsum pile, the monitoring device is located inside the phosphogypsum pile and is used for monitoring rainfall conditions and deformation conditions of the phosphogypsum pile, the monitoring device is in signal connection with a controller, and the collecting pool is located on one side of the phosphogypsum pile and is used for collecting rainwater flowing through the phosphogypsum pile.
2. The artificial rainfall simulation device for phosphogypsum piles according to claim 1, which is characterized in that: the rainwater pipe is characterized in that the water pipe is communicated with a plurality of branch pipes, each branch pipe comprises a first branch pipe and a second branch pipe, each rainfall sprayer comprises a first sprayer and a second sprayer, the first branch pipes are uniformly and fixedly communicated with the first sprayers, the second branch pipes are uniformly and fixedly communicated with the second sprayers, and the first branch pipes and the second branch pipes are arranged at intervals.
3. The artificial rainfall simulation device for phosphogypsum piles according to claim 2, characterized in that: the front end of the first branch pipe is provided with a first control valve, the first control valve can control the circulation of the water body on the first branch pipe, the front end of the second branch pipe is provided with a second control valve, and the second control valve can control the circulation of the water body on the second branch pipe.
4. The artificial rainfall simulation device for phosphogypsum piles according to claim 1, which is characterized in that: the rainfall support comprises a canopy support and a canopy, the canopy support is used for fixing the water delivery pipe, and the canopy is fixedly covered on the top of the canopy support.
5. The artificial rainfall simulation device for phosphogypsum piles according to claim 4, which is characterized in that: the canopy passes through steel wire fixed connection in on the canopy support, the canopy support is the frame construction that the aluminum alloy welding formed, the material of canopy is the transparent flexible glue of PVC.
6. The artificial rainfall simulation device for phosphogypsum piles according to claim 1, which is characterized in that: the water storage device comprises a water storage tank, a water pump, a check valve, a flowmeter, a pressure gauge and a filter, the water delivery pipe comprises a water guide pipe and a main water pipe which are communicated, the main water pipe is communicated with the branch flow pipes, one end of the water guide pipe is communicated with the main water pipe, the other end of the water guide pipe is communicated with the water storage device, the water pump is communicated with the water storage tank, the water pump, the pressure gauge, the check valve, the flowmeter and the filter are fixedly arranged on the water guide pipe, the flowmeter is used for monitoring the water consumption in the rainfall process in real time, the filter is used for intercepting impurities in water to reduce the blockage of the rainfall sprayer, the pressure gauge is used for measuring the pressure in the water guide pipe, and the check valve is used for preventing the water guide.
7. The artificial rainfall simulation device for a phosphogypsum pile according to claim 6, characterized in that: the water pump is a variable-frequency self-priming booster pump, the suction lift of the water pump is more than 1m, and the lift of the water pump is not less than 60 m; the flowmeter is a float plastic pipe flowmeter; the filter is a large-flow prefilter.
8. The artificial rainfall simulation device for phosphogypsum piles according to claim 1, which is characterized in that: the monitoring device comprises a rain gauge, an osmometer, a water content sensor, a displacement sensor and a camera, wherein the rain gauge is arranged below the rainfall spray head and used for measuring rainfall intensity, a pipeline is vertically and fixedly arranged in the phosphogypsum stack, the osmometer is fixedly arranged in the pipeline and used for monitoring pore water pressure in the phosphogypsum stack, the water content sensor and the displacement sensor are buried in the phosphogypsum stack, the water content sensor is used for measuring the water content of the phosphogypsum stack, the displacement sensor is used for monitoring the height change of the phosphogypsum stack, and the camera is used for shooting the deformation condition of the phosphogypsum stack.
9. The artificial rainfall simulation device for a phosphogypsum pile according to claim 8, characterized in that: the rain gauge is a tipping bucket type rain gauge, and the osmometer is a PWS vibrating wire osmometer.
10. The artificial rainfall simulation device for phosphogypsum piles according to claim 1, which is characterized in that: the phosphogypsum pile is characterized in that a simulated pavement is circumferentially arranged on the phosphogypsum pile, drainage ditches are arranged on two sides of the simulated pavement and are communicated with the collecting tank, a plurality of grooves are uniformly formed in the drainage ditches, and the grooves are used for collecting rainwater with the phosphogypsum.
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