CN110947432A - A artifical simulation climate box for monitoring uranium tailings sand - Google Patents

Abstract

The invention discloses an artificial simulation climate box for monitoring uranium tailing sand, which comprises an artificial climate box body with a columnar box body structure, an artificial rainfall simulation system, an illumination and temperature and humidity control system and a radon measurement module, wherein the artificial climate box body comprises a soil sample placing area at the bottom end and a radon collection cover above the soil sample placing area, the radon collection cover is in cyclic sampling connection with the radon measurement module through an air duct, the artificial rainfall simulation system comprises a water storage tank and an atomizing nozzle connected to the water storage tank, the atomizing nozzle is fixedly arranged in the radon collection cover, rainfall simulation is realized by controlling the flow of the atomizing nozzle, the illumination and temperature and humidity control system consists of a constant-temperature water bath interlayer and a long-arc xenon lamp together, the temperature of the system is controlled and regulated, and a ventilation module and a program control system are additionally arranged to improve the convenience and safety controllability of; through the structural design, operators can analyze radon precipitation more safely, conveniently and accurately by simulating natural conditions.

Description

A artifical simulation climate box for monitoring uranium tailings sand

Technical Field

The invention relates to an experimental simulation device for a pollutant migration rule, belongs to the field of environmental protection, and particularly relates to a manual simulation climate box for monitoring uranium tailing sand.

Background

With the large-scale application and development of nuclear power technology, the activities of exploitation, processing and production of nuclear fuel are increasingly active and wide, and the currently used nuclear fuel is mainly uranium fuel rods, so that the exploitation of uranium ores by people is promoted; along with the exploitation of uranium ores, a large amount of uranium waste stones and uranium tailing sands are inevitably left; at present, the uranium waste rocks and the uranium tailings all over the world reach more than 400 hundred million tons, and the uranium tailings reach more than 200 hundred million tons, which causes extremely serious radiation pollution problems to the environment of a uranium tailing area and nearby residents; the uranium tailings sand is harmful to the public and the environment mainly through the following five ways: sucking or eating flying dust to pollute water, separating out radon, carrying out gamma radiation and enriching and transferring plants, wherein the radon separation has the greatest harm to the public; most of radon separated from uranium tailing sand is in the form of radon gas, which has negative effects on nausea, vomiting, reduction of blood platelets and blood corpuscles, serious patients can cause various cancers, cataract, infertility and other diseases, and simultaneously can cause ionizing radiation damage to biological germ cells, thereby causing genetic problems such as deformity, mental retardation, dementia and the like; therefore, the research on the radon precipitation rule in the uranium tailing sand becomes a hotspot of academic research.

At present, a main device used for measuring the radon precipitation of uranium tailing sand is a radon measuring instrument, a sealed radon collecting cover is covered on a soil sample to be measured, and the radon measuring instrument is used for measuring the radon content in the radon collecting cover; however, in order to provide a powerful scientific basis for pollutant control and ecological environment control, experimental data of the radon precipitation process of uranium tailings sand needs to be obtained within a set time, so that the radon precipitation process needs to be researched by simulating different natural conditions by using a manual simulated climate box to replace the existing device for simply measuring the radon content.

The invention patent with the application number of CN201811427591.5 provides a device for simulating the migration rule of pollutants in soil under different rainfall intensity conditions and a simulation method thereof, wherein the device comprises a spraying water supply system, a pollutant migration experiment column, a filtrate collection system and a multilayer support platform, the vertical layer distribution of the pollutants in the polluted soil placed in the pollutant migration experiment column is measured by adjusting the spraying water supply system at the top end, and the polluted filtrate is further collected and analyzed by a filtrate collection system at the bottom end; the invention realizes the simulation of different rainfall quantities under natural conditions, however, the control influence of the invention on temperature and humidity is not deeply studied, and the invention is used for the research of the vertical layer migration of pollutants in soil like other artificial simulation climatic chambers, and no artificial simulation climatic chamber is suitable for the analysis and research of the precipitation of harmful gases in soil layers.

In order to solve the technical problems, an artificial simulation climate box for monitoring uranium tailing sand, which is convenient and safe to use, can simulate various natural conditions and is suitable for harmful gas precipitation measurement, is urgently needed to solve the existing technical problems.

Disclosure of Invention

The invention provides a manual simulation climate box for monitoring uranium tailing sand, which aims at performing diversified simulation in an experimental box body on gas precipitation, and has more accurate measurement data and safer use.

The invention is realized by the following technical scheme.

A manual simulated climate box for monitoring uranium tailing sand comprises a manual climate box body, a manual rainfall simulation system, an illumination and temperature and humidity control system and a radon measuring module, it is characterized in that the artificial climate box body is a columnar box body structure and comprises a radon collecting cover and a soil sample box body, the radon collecting cover is fixedly arranged at the upper end of the soil sample box body, a soil sample placing area is arranged in the soil sample box body, the artificial rainfall simulation system comprises a water storage tank and an atomizing nozzle connected to the water storage tank, the atomizing nozzle is fixedly arranged in the radon collection cover, the illumination and temperature and humidity control system comprises a plurality of temperature and humidity sensors and a heating system, the temperature and humidity sensors are arranged on the soil sample box body, the heating system is installed in a soil sample placing area, the radon measuring module comprises an air guide pipe and a radon measuring instrument, and the radon measuring instrument is connected with the artificial climate box body through the air guide pipe.

Above-mentioned embodiment, it is preferred that the collection radon cover includes the flange upper cover, the flange upper cover is located collection radon cover top, its central department is the shower nozzle mounting hole, just it has sampling air inlet and sampling gas outlet to use the shower nozzle mounting hole to distribute as central symmetry on the flange upper cover, collection radon cover lateral wall has the vent.

Above-mentioned embodiment, preferentially, soil sample box lateral wall distributes has a plurality of sensor installing port and its bottom is the drain pipe slotted hole.

In the above embodiment, preferably, the number of the sensor mounting openings is two, and the sensor mounting openings are uniformly distributed on the side wall of the soil sample box body in a staggered manner.

Above-mentioned embodiment, it is preferred, still include drainage system, drainage system includes the drain tank, the drain tank top is porous partition, and its bottom center fixed mounting has first electric putter, first electric putter base fixed mounting is in soil sample box bottom, and drain tank slidable mounting places district's inner wall in soil sample, the drain tank bottom is fixed mounting still has the drain pipe, install drain valve and its exit end movable mounting in drain pipe slotted hole on the drain pipe.

Above-mentioned embodiment, it is preferred, still include the ventilation module, the ventilation module includes the porose ventilation case in end, sealing plug and second electric putter, just ventilation case fixed mounting is in collection radon cover lateral wall vent department, second electric putter fixed mounting is in ventilation bottom of the case portion, and its preceding terminal surface and sealing plug fixed connection, sealing plug overall dimension is unanimous with the vent, and its side fixed mounting has the sealing washer, has in addition active carbon adsorption layer fixed mounting in ventilation case middle part, and its push rod portion slidable mounting of second electric putter in active carbon adsorption layer center through hole department.

Above-mentioned embodiment, it is preferred that artificial rainfall analog system still includes the force pump, and electron flow meter and electrical control valve, storage water tank warp the force pump, electron flow meter and electrical control valve are connected to atomizer, just the storage water tank still includes a plurality of level sensor and water level indicator, the even vertical fixed mounting of level sensor in storage water tank inner wall, water level indicator fixed mounting is in storage water tank outer wall, atomizer fixed mounting is in the shower nozzle mounting hole.

In the above embodiment, it is preferable that the heating system of the illumination and temperature and humidity control system is a constant temperature water bath module, the constant temperature water bath module includes a constant temperature water tank and a water bath interlayer, the water bath interlayer is located inside the soil sample box and wraps up the soil sample placement area, the lower end of the water bath interlayer is a water bath water inlet, the upper end of the water bath interlayer is a water bath water outlet, the water inlet and outlet of the constant temperature water tank are connected with the water bath water inlet and the water bath water outlet respectively through a pipeline, the heating system of the illumination and temperature and humidity control system further includes a long-arc xenon lamp, the long-arc xenon lamp is fixedly mounted on a long-arc xenon lamp guide rail through a long-arc xenon lamp support, the long-arc xenon lamp guide rail is a horizontal-vertical bidirectional movement guide.

Above-mentioned embodiment, it is preferred that, the radon measurement module still includes drying tube and filter, the radon measurement appearance air inlet passes through the filter in proper order, and the drying tube is connected to the sampling gas outlet by the air duct, and the radon measurement appearance air outlet is connected to the sampling air inlet by the air duct.

Above-mentioned embodiment, it is preferred, still include programme-controlled system, programme-controlled system includes controller and touch-sensitive screen, the controller is connected with the two-way data communication of touch-sensitive screen, just the controller input is connected to temperature and humidity sensor, water bath system detected signal, xenon lamp detected signal, rainfall analog system detected signal, emanometer module detected signal, drainage system detected signal, ventilation detected signal and electron flowmeter, the control signal output of controller is connected to pressure pump, electrical control valve, xenon lamp power regulator, guide rail drive arrangement, thermostatic waterbath control module, first electric putter, second electric putter, drainage valve and emanometer module controller.

Compared with the prior art, the invention has the beneficial effects that:

1) the invention controls the temperature of the soil sample to be measured by a method of combining the long-arc xenon lamp and the warm water bath, and compared with other devices which adjust the temperature by the heating sheet and the heating wire, the invention has better observable property and temperature control effect for the soil layer;

2) the invention carries out the optimized selection of the radon measuring mode aiming at the radon precipitation test;

3) the safety protection structure and the remote control system adopted by the invention ensure that the safety is higher for users when the harmful gas is separated out and the position of the long-arc xenon lamp is operated;

4) the invention realizes automatic control and feedback of the climate box simulation conditions through the program control system.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of an artificial climate box;

FIG. 3 is an enlarged cross-sectional view of the artificial climate box;

FIG. 4 is a perspective view of a drainage system;

FIG. 5 is a cross-sectional view of a ventilation module;

FIG. 6 is a schematic block diagram of the programming system of the present invention.

In the figure: 1. a climatic cabinet; 11. a radon collecting cover; 111. sampling an air outlet; 112. a sampling gas inlet; 113. a vent; 114. a nozzle mounting hole; 115. an upper cover of the flange; 12. a soil sample box body; 121. a soil sample placement area; 122. a sensor mounting port; 123. a drain pipe slot; 2. an artificial rainfall simulation system; 21. A water storage tank; 211. a water level sensor; 212. a water level indicator light; 22. a pressure pump; 23. an electronic flow meter; 24. an atomizing spray head; 25. an electric control valve; 3. an illumination and temperature and humidity control system; 31. a temperature and humidity sensor; 33. a constant temperature water bath module; 331. water bath interlayer; 332. a water bath water inlet; 333. a water bath water outlet; 334. a constant temperature water tank; 34. a long arc xenon lamp; 35. a long arc xenon lamp support; 36. a long arc xenon lamp guide rail; 4. a drainage system; 41. a drain tank; 42. a porous separator; 43. a drain pipe; 44. a drain valve; 45. a first electric push rod; 5. a radon measuring module; 51. an air duct; 52. a radon measuring instrument; 53. a drying tube; 54. a filter; 6. a ventilation module; 61. a ventilation box; 62. an activated carbon adsorption layer; 63. a sealing plug; 64. a second electric push rod; 7. a program control system; 71. a controller; 72. a touch screen; 731. detecting a signal by a water bath system; 732. detecting a signal by a xenon lamp; 733. detecting a signal by a rainfall simulation system; 734. detecting a signal by a radon measuring module; 735. detecting a signal by a drainage system; 736. a ventilation detection signal; 742. a xenon lamp power regulator; 743. a guide rail drive device; 744. a constant temperature water bath control module; 745. a radon measuring module controller.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood 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 of the present invention without any inventive step, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that the drawings are only for convenience of describing the operation principle and the implementation manner of the present invention, and do not indicate or imply that the devices or elements referred to must have specific dimensional values, appearance shapes or be matched with specific dimensional proportions, and therefore, the present invention is not to be understood as being limited thereto.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

As shown in fig. 1 and 6, according to an embodiment of the present invention, there is provided a manual simulated climate box for monitoring uranium tailings, including: the artificial climate box body 1 is of a multilayer structure, and the artificial climate box body 1 is sequentially provided with a radon collecting cover 11 and a soil sample box body 12 which are connected through flanges from top to bottom; in order to simulate different natural environments, the artificial rainfall simulation system 2, the illumination and temperature and humidity control system 3, the drainage system 4 and the program control system 7 are further included, the artificial rainfall simulation system 2 and the illumination and temperature and humidity control system 3 are installed on the artificial climate box body 1, natural conditions such as rainfall, temperature and humidity, illumination and the like in the soil sample box body 12 are simulated, the program control system 7 carries out remote control on the artificial rainfall simulation system 2 and the illumination and temperature and humidity control system 3 through a computer through related sensors and control modules, the drainage system 4 is installed at the bottom end of the soil sample box body 12 and controls the drainage quantity of simulated artificial rainfall, the artificial rainfall simulation system also comprises a radon measurement module 5 which is installed and connected with a radon collection cover 11, and data collection and analysis are carried out on radon precipitation in the box body.

As shown in fig. 2 and 3, in the above artificial simulation climate box for monitoring uranium tailing sand, the radon collection cover 11 is flange-connected with the soil sample box 12 to form a sealed cavity, the top end of the radon collection cover 11 is a flange upper cover 115, sampling air outlets 111 and sampling air inlets 112 are symmetrically distributed on the flange upper cover 115, and the center of the flange upper cover is a nozzle mounting hole 114; the side surface of the radon collection cover 11 is provided with a vent hole 113; the soil sample box 12 has a soil sample placing area 121 inside, a plurality of sensor mounting holes 122 evenly distributed on the side wall, and a water outlet notch 123 at the bottom.

As shown in fig. 3 and 4, the drainage module 4 includes a drainage tank 41, the drainage tank 41 is located at the bottom end of the soil sample placement area 121, the upper end surface of the drainage tank is a porous partition plate 42, and the center of the lower end surface of the drainage tank is connected with a drainage pipe 43 and a first electric push rod 45, the first electric push rod 45 is fixedly installed at the base of the soil sample box 12, the drainage tank 41 is pushed to move up and down in the soil sample box 12 within a fixed stroke range, a drainage valve 44 is arranged on the drainage pipe 43, and the outlet end of the drainage valve is movably installed in a drainage notch 123.

As shown in fig. 1 and 3, the illumination and temperature and humidity control system 3 includes a thermostatic water bath module 33, a water bath interlayer 331 of the thermostatic water bath module 33 is installed on the soil sample box 12, and wraps the soil sample placing area 121, the lower end of the thermostatic water bath module is a water bath water inlet 332, the upper end of the thermostatic water bath module is a water bath water outlet 333, water or other transparent liquid reaching the preset water bath temperature is injected from the water bath water inlet 332 through an external thermostatic water tank 334, water circulation of the outer cavity water bath interlayer 331 is realized through outflow of the water bath water outlet 333, and then constant temperature heat preservation is performed on the device.

In this embodiment, the artificial climate box 1 is made of transparent organic glass, the height of the radon collection cover 11 is 100mm, the upper flange cover 115 is made of high temperature resistant material, and the space between the air outlet 111 and the sampling air inlet 112 is 150mm, the overall dimension of the artificial climate box is about phi 300 x 800mm, the soil sample placement area 121 is a cavity of phi 240mm x 500mm, the height of the water bath interlayer 331 is 500mm, the number of the sensor mounting holes 122 is 4, the artificial climate box is distributed on the outer walls of the soil sample box 12 at different heights in a staggered manner, the height of the drainage box 41 is 100mm, the stroke of the first electric push rod 45 at the lower end of the drainage box is 100mm, the scale strips are symmetrically arranged on the two sides of the outer wall of the soil sample box 12, and the sensor mounting holes 122 and the nozzle mounting holes 114 are both provided with sealing rings, so that the influence on.

As shown in fig. 1 and 2, the illumination and temperature and humidity control system 3 further includes a temperature and humidity sensor 31 and a long-arc xenon lamp 34, wherein the temperature and humidity sensor 31 is installed in the sensor installation hole 122; the long-arc xenon lamp 34 is used as a light supplement system and is fixedly arranged on a long-arc xenon lamp support 35, the long-arc xenon lamp support 35 is fixedly arranged on a long-arc xenon lamp guide rail 36, the long-arc xenon lamp guide rail 36 is a double-shaft guide rail, and the height of the long-arc xenon lamp 34 arranged on the long-arc xenon lamp guide rail and the distance from the long-arc xenon lamp to the artificial climate box body 1 can be adjusted through a control system.

In this embodiment, the temperature and humidity sensor 31 monitors the temperature and humidity inside the instrument in real time, and performs feedback adjustment on the power of the long-arc xenon lamp 34 through the difference between the real-time temperature and the target temperature; on the other hand, because the long-arc xenon lamp 34 has strong brightness and high heat radiation temperature in a working state, the long-arc xenon lamp 34 is adjusted to move to a required position by accurately controlling the long-arc xenon lamp guide rail 36 through the remote control system for the convenience and safety of operators.

As shown in fig. 1 and 2, the artificial rainfall simulation system 2 comprises a water storage tank 21 and a plurality of atomizing nozzles 24; the atomizing nozzle 24 is fixedly arranged in the nozzle mounting hole 114 and is connected with the water storage tank 21 through a rubber hose, and the bottom end of the water storage tank 21 is provided with a pressure pump 22, an electronic flowmeter 23 and an electric regulating valve 25; a plurality of water level sensors 211 are arranged in the water storage tank 21 at different heights, and the surface of the water storage tank is provided with a water level indicator lamp 212; liquid is pumped out of the water storage tank 21 by the pressure pump 22, flows to the atomizing nozzle 24 through the electronic flowmeter 23 and the electric regulating valve 25, is atomized by the atomizing nozzle 24, and rainfall simulation in the tank body is realized; according to the rainfall condition to be simulated, the electric regulating valve 25 is controlled by the control module to realize rainfall simulation, and the rainfall is measured by the electronic flowmeter 23, so that the rainfall duration reaches a preset value.

In the embodiment, the number of the atomizing nozzles is 1, the rainfall condition is simulated into light rain, medium rain, heavy rain and heavy rain, the simulated rainfall capacity is 10mm-250mm/h, and the actual water spraying capacity is 1.2-32L/h; the capacity of the water storage tank 21 is 1000L, the number of the water level sensors 211 in the water storage tank is 3, the water level sensors are uniformly distributed to the high, middle and low positions in the water storage tank 21, the water level sensors 211 are connected with the water level indicating lamps 212 through the control module, when the water storage tank 21 is lower than a fixed liquid level, visual display is conducted on the water level indicating lamps 212, after the machine runs, the situation that the water level in the water storage tank 21 is insufficient, the preset duration of simulated rainfall cannot be completed, and the experiment failure is caused is avoided.

As shown in fig. 1, the radon measuring module 5 includes a radon measuring instrument 52, a drying tube 53 and a filter 54, the air duct 51 is sequentially connected to the drying tube 53, the filter 54 and the air inlet of the radon measuring instrument 52 from the sampling air outlet 111, and is connected to the air outlet of the radon measuring instrument 52 to the sampling air inlet 112, and the radon measuring instrument 52 is additionally provided with a sampling pump, so that the regular sampling and the air circulation of the air in the radon collecting cover 11 are realized.

In this embodiment, the radon measuring instrument 35 employs a RAD7 detecting instrument, and since the air humidity has a deviation influence on the measured radon value, when the sampling pump samples, solid particles are inevitably extracted into the gas guide tube 51, so that the drying tube 53 and the filter 54 are disposed on the sampling gas circulation channel, and the sampling gas is dried and filtered; on the other hand, for radon precipitation measurement, the radon precipitation measurement mainly comprises a through air flow sampling method and an accumulation measurement method, the through air flow sampling method measures the radon precipitation value through stabilizing the radon concentration in through air flow, the method has strict control on sampling flow rate, too low is not enough to prevent the too high accumulation of the radon concentration in the radon collection cover 11, and too high can cause the too low radon concentration in the radon collection cover 11 to generate negative pressure to influence the radon precipitation rate, the measurement method is not favorable for experimental analysis on the harsh requirement of sampling flow rate conditions, so the measurement method adopted in the embodiment is an accumulation measurement method, the air duct 41 is connected with the air outlet of the radon measuring instrument 52 and the sampling air inlet 112, and the complete sampling gas circulation is formed in the instrument.

As shown in fig. 5, another ventilation module 6 includes a ventilation box 61, the ventilation box 61 is fixedly mounted on the sidewall of the radon collection cover 11, the ventilation opening 113 is located at the center of the ventilation box 61, an activated carbon adsorption layer 62 is arranged inside the ventilation box 61, and another second electric push rod 64 is fixedly mounted at the bottom of the ventilation box 61, and passes through a central through hole of the activated carbon adsorption layer 62 to be fixedly mounted to the sealing plug 63, the outer dimension of which is consistent with that of the ventilation opening 113, and a sealing ring is mounted on the sealing plug 63, so that the sealing plug 63 can be sealably mounted at the ventilation opening 113 and can move back and forth along the axis, and at the same time, due to the limit of the; when the air inlet is moved to the bottom end, the sealing plug 63 just completely seals the air outlet 113, and when the air inlet is moved to the top end, the sealing plug 63 is tightly attached to the activated carbon adsorption layer 62, and the air outlet 113 is unblocked.

In this embodiment, the device is in a sealed state, and before the radon measuring instrument 52 is started to work, part of radon is gathered in the instrument, so that in order to remove the influence of the pre-gathered radon, the ventilation opening 113 needs to be opened before the radon concentration is measured each time; on the other hand, radon gas is taken as harmful gas, so that safety treatment is required to be carried out on radon gas during experiments; according to the characteristics of radon, the radon is easily absorbed by the active carbon, so that the active carbon absorption layer 62 is arranged in the ventilation box 61, when the ventilation box is outwards pumped away from the sealing plug 63, the ventilation opening 113 is unblocked, and the radon accumulated in the instrument flows out through the ventilation opening 113 and is absorbed by the active carbon absorption layer 62, so that the accumulated radon is safely removed; when the sealing plug 63 is pushed inwards, the vent 113 is sealed, and the subsequent radon measuring step is continued.

As shown in fig. 6, the programmed system 7 includes a controller 71 and a touch screen 72, where the touch screen 72 is connected to the controller 72 for human-computer interaction between an operator and the controller 71, and the operator can set target parameters on the touch screen 72 and start/stop the system operation; the system comprises a temperature and humidity sensor 31, a water bath system detection signal 731, a xenon lamp detection signal 732, a rainfall simulation system detection signal 733, a radon measurement module detection signal 734, a drainage system detection signal 735, a ventilation detection signal 736 and an electronic flowmeter 23, wherein the detection signals are connected to a signal input end of a controller 71, a control signal output end of the controller 71 is connected to a pressure pump 22, an electric regulating valve 25, a xenon lamp power regulator 742, a guide rail driving device 743, a constant temperature water bath control module 744, a first electric push rod 45, a second electric push rod 64, a drainage valve 44 and a radon measurement module controller 745.

At a signal input: the temperature and humidity sensors 31 are fixedly arranged in the sensor mounting holes 122 and are used for respectively detecting the temperature and the humidity of the sample soil at different heights; the detection signal 731 of the water bath system represents the state of the constant-temperature water bath system, and comprises the running state of each device of the constant-temperature water bath system: stopping, heating, supplying water, real-time water temperature and the like; the xenon lamp detection signal 732 represents the state of the long-arc xenon lamp system, including the running states of the long-arc xenon lamp 34 and the long-arc xenon lamp guide rail 36, such as shutdown, the running state of the guide rail, real-time power and the like; the rainfall simulation system detection signal 733 represents the state of the artificial rainfall simulation system 2, and includes the operation state of each device of the artificial rainfall simulation system 2: shutdown, water level state of the water storage tank 21, light rain, medium rain, heavy rain and the like; the radon measurement module detection signal 734 represents the operational status of the radon meter 52: shutdown, sampling, etc.; the electronic flowmeter 23 is used for detecting the real-time flow of the artificial rainfall simulation system 2; the drainage system detection signal 735 is indicative of the operational status of the drainage system 4: the ventilation detection signal 736 represents the opening and closing state of the ventilation opening 113 through the state feedback of the second electric push rod 64; the drain valve 44 is opened and closed, etc.

At the control signal output: the pressure pump 22 is used for controlling the water storage output of the water storage tank 21, and the electric regulating valve 25 is used for regulating the water flow of the water storage tank 21; the xenon lamp power regulator 742 is used for regulating the power of the long-arc xenon lamp 34, and the guide rail driving device 743 is used for regulating the relative position of the long-arc xenon lamp 34; the constant-temperature water bath control module 744 is used for regulating and controlling the temperature of the constant-temperature water bath and the circulation state of the water bath; the drainage valve 44 and the first electric push rod 44 are used for controlling the height adjustment and the drainage flow of the drainage system 4; the radon measuring module controller 745 is used for controlling the sampling frequency and the sampling frequency of the radon measuring instrument 52; the second electric push rod 64 is used for controlling the opening and closing of the air vent 113.

The touch screen 72 and the controller 71 realize bidirectional data communication, an operator sets the opening state of each module on the touch screen 72, remotely adjusts the position of the long-arc xenon lamp 34, and sets the required rainfall mode, duration, system target temperature, sampling frequency and sampling frequency of the radon detector 52; meanwhile, the radon measuring instrument 52 collects data, real-time temperature and humidity, and real-time power of the long-arc xenon lamp 34 is fed back to the touch screen 72, and when the water level of the water storage tank 21 is insufficient, a detection signal 733 of the rainfall simulation system is transmitted to the controller 71, so that the controller 71 triggers the alarm device on the touch screen 72.

The following steps are carried out in the actual working process by the artificial simulation climate box:

the circuit of inspection manual simulation weather case in advance guarantees that there is potential safety hazards such as contact failure in wireless circuit, all sets up all valves to the closed condition, and inspection device gas tightness guarantees that the device does not have radon gas to reveal in the experimentation, influences experiment measurement accuracy.

Placing a filter screen at the bottom of the artificial climate box body 1, filling uranium tailing sand in the soil sample placing area 121 layer by layer, and sequentially placing the temperature and humidity sensors 31 into the sensor mounting openings 122 in the filling process; the valves are checked to be closed and the required amount of water is previously filled into the water storage tank 21.

The remote end of the touch screen 72 is operated to adjust the long-arc xenon lamp 34 to a proper position and power, the first electric push rod 45 is adjusted to a proper height, the required rainfall mode, the required duration, the target temperature of the system, the sampling frequency and the sampling times of the radon detector 52 are set, and the equipment is started.

The constant temperature water bath control module 744 controls the external constant temperature water tank 334 to gradually heat to a preset temperature; the second electric push rod 64 drives the sealing plug 63 to move outwards to the bottom, and the sealing plug is timed by the timing unit and reset to the closing state of the air vent 113 again.

The constant-temperature water bath control module 744 controls the valve of the external constant-temperature water tank 334 to be opened, so that a circulating waterway is realized with the water bath interlayer 331, and the soil sample is heated; the pressure pump 22 is started, and preset rainfall simulation is realized through the electronic flow rate meter 23, the electric regulating valve 25 and the atomizing nozzle 24; meanwhile, the power and the height of the long-arc xenon lamp 34 are automatically adjusted through feedback of temperature and humidity parameters by the temperature and humidity sensor 31 and feedback of the control module 71.

The radon detector 52 starts sampling test according to a preset sampling frequency and feeds test data back to the touch screen 72; when the simulated rainfall reaches the preset duration, the pressure pump 22 is automatically closed; when the water level inside the water storage tank 21 is detected insufficiently, the touch screen 72 is triggered to alarm, and the controller 71 controls the pressure pump 22 to be shut down for protection.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.

Claims (10)

1. The artificial simulation climate box for monitoring uranium tailing sand comprises an artificial climate box body (1), an artificial rainfall simulation system (2), an illumination and temperature and humidity control system (3) and a radon measurement module (5), and is characterized in that the artificial climate box body (1) is of a cylindrical box body structure and comprises a radon collection cover (11) and a soil sample box body (12), the radon collection cover (11) is fixedly installed at the upper end of the soil sample box body (12), a soil sample placing area (121) is arranged inside the soil sample box body (12), the artificial rainfall simulation system (2) comprises a water storage tank (21) and an atomizing nozzle (24) connected to the water storage tank (21), the atomizing nozzle (24) is fixedly installed inside the radon collection cover (11), the illumination and temperature and humidity control system (3) comprises a plurality of temperature and humidity sensors (31) and a heating system, the temperature and humidity sensors (31) are installed in the soil sample box body (12), the heating system is installed in a soil sample placing area (121), the radon measuring module (5) comprises an air guide pipe (51) and a radon measuring instrument (52), and the radon measuring instrument (52) is connected with the artificial climate box body (1) through the air guide pipe (51).

2. The artificial simulation climate box for monitoring uranium tailings sand according to claim 1, wherein the radon collection cover (11) comprises a flange upper cover (115), the flange upper cover (115) is located at the top end of the radon collection cover (11), a nozzle mounting hole (114) is arranged at the center of the radon collection cover, a sampling air inlet (112) and a sampling air outlet (111) are symmetrically distributed on the flange upper cover (115) by taking the nozzle mounting hole (114) as the center, and a ventilation opening (113) is arranged on the side wall of the radon collection cover (11).

3. The artificial simulation climate box for monitoring uranium tailings sand according to claim 1, wherein the side wall of the soil sample box body (12) is distributed with a plurality of sensor mounting ports (122) and the bottom end of the soil sample box body is a drain pipe slotted hole (123).

4. The artificial simulated climate box for monitoring uranium tailings sand according to claim 3, wherein the number of the sensor mounting ports (122) is 4, and the sensor mounting ports are evenly distributed on the side wall of the soil sample box body (12) in a staggered manner.

5. A manual simulation climate box for monitoring uranium tailings sand according to claim 1 or claim 3, further comprising a drainage system (4), wherein the drainage system (4) comprises a drainage box (41), the top of the drainage box (41) is a porous partition plate (42), a first electric push rod (45) is fixedly installed at the center of the bottom of the drainage box, the base of the first electric push rod (45) is fixedly installed at the bottom end of the soil sample box body (12), the drainage box (41) is slidably installed on the inner wall of the soil sample placing area (121), a drainage pipe (43) is further fixedly installed at the bottom of the drainage box (41), a drainage valve (44) is installed on the drainage pipe (43), and the outlet end of the drainage valve is movably installed in the groove hole (123).

6. A manned simulated climate box for monitoring uranium tailings sand according to claim 1 or claim 2, characterized by also comprising a ventilation module (6), wherein the ventilation module (6) comprises a ventilation box (61) with a hole at the tail end, a sealing plug (63) and a second electric push rod (64), and the ventilation box (61) is fixedly arranged at a ventilation opening (113) on the side wall of the radon collection cover (11), the second electric push rod (64) is fixedly arranged at the bottom of the ventilation box (61), the front end surface of the air inlet pipe is fixedly connected with a sealing plug (63), the external dimension of the sealing plug (63) is consistent with that of the vent (113), and the side surface is fixedly provided with a sealing ring, and an active carbon adsorption layer (62) is fixedly arranged in the middle of the ventilation box (61), and the push rod part of the second electric push rod (64) is slidably arranged at the central through hole of the activated carbon adsorption layer (62).

7. The artificial simulation climate box for monitoring uranium tailings sand according to claim 1 or claim 2, wherein the artificial rainfall simulation system (2) further comprises a pressure pump (22), an electronic flowmeter (23) and an electric regulating valve (25), the water storage tank (21) is connected to the atomizing spray head (24) through the pressure pump (22), the electronic flowmeter (23) and the electric regulating valve (25), the water storage tank (21) further comprises a plurality of water level sensors (211) and water level indicating lamps (212), the water level sensors (211) are uniformly and longitudinally fixedly installed on the inner wall of the water storage tank (21), the water level indicating lamps (212) are fixedly installed on the outer wall of the water storage tank (21), and the atomizing spray head (24) is fixedly installed on the spray head installation hole (114).

8. The artificial simulation climate box for monitoring uranium tailings sand according to claim 1 or claim 3, wherein the heating system of the illumination and temperature and humidity control system (3) is a constant temperature water bath module (33), the constant temperature water bath module (33) comprises a constant temperature water tank (334) and a water bath interlayer (331), the water bath interlayer (331) is located inside the soil sample box body (12) and wraps the soil sample placement area (121), the lower end of the water bath interlayer (331) is a water bath water inlet (332), the upper end of the water bath interlayer (331) is a water bath water outlet (333), the water inlet and outlet of the constant temperature water tank (334) are respectively connected with the water bath water inlet (332) and the water bath water outlet (333) through pipelines, the heating system of the illumination and temperature and humidity control system (3) further comprises a long arc xenon lamp (34), and the long arc xenon lamp (34) is fixedly installed on the long arc xenon lamp guide rail (36) through a long arc xenon lamp bracket (35), the long-arc xenon lamp guide rail (36) is a horizontal-vertical two-way movement guide rail, and the temperature and humidity sensors (31) are respectively and fixedly installed on the sensor installation ports (122).

9. A climatic chamber for artificial simulation of uranium tailings sand according to claim 1 or claim 2, wherein the radon measuring module (5) further comprises a drying tube (53) and a filter (54), the radon measuring instrument (52) air inlet passes through the filter (54) in turn, the drying tube (53) is connected to the sampling air outlet (111) by an air duct (51), and the radon measuring instrument (52) air outlet is connected to the sampling air inlet (112) by an air duct (51).

10. The artificial simulated climate box according to any one of claims 1 to 9, further comprising a program control system (7), wherein the program control system (7) comprises a controller (71) and a touch screen (72), the controller (71) is in bidirectional data communication connection with the touch screen (72), an input end of the controller (71) is connected to the temperature and humidity sensor (31), the water bath system detection signal (731), the xenon lamp detection signal (732), the rainfall simulation system detection signal (733), the radon measurement module detection signal (734), the drainage system detection signal (735), the ventilation detection signal (736) and the electronic flowmeter (23), a control signal output end of the controller (71) is connected to the pressure pump (22), the electric control valve (25), the xenon lamp power regulator (742) and the rail driving device (743), the device comprises a constant-temperature water bath control module (744), a first electric push rod (45), a second electric push rod (64), a water discharge valve (44) and a radon measuring module controller (745).

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