CN109490173A - Uranium tailings pond uranium tailings and lower sleeping rock-soil layer permeability test device and test method - Google Patents

Uranium tailings pond uranium tailings and lower sleeping rock-soil layer permeability test device and test method Download PDF

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Publication number
CN109490173A
CN109490173A CN201811606774.3A CN201811606774A CN109490173A CN 109490173 A CN109490173 A CN 109490173A CN 201811606774 A CN201811606774 A CN 201811606774A CN 109490173 A CN109490173 A CN 109490173A
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gas
pressure
solenoid valve
liquid
test
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CN109490173B (en
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刘永
李向阳
潘宇翔
娄亚龙
彭国文
房琦
雷波
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University of South China
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University of South China
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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

Abstract

Uranium tailings pond uranium tailings and lower sleeping rock-soil layer permeability test device and trial assembly method, test device includes gas pressure regulation injected system, liquid pressure regulation injected system, pressure-measuring system, excitation system, back pressure system, flow measuring system, data collector and insulating box, and above system is connected by pipe-line.Underground environment is simulated by test device; gas-liquid mixed, the permeability of pure gas and single liquid and the permeability of rock-soil layer and uranium tailings in different depth, different temperatures, different vibration frequencies that crouch under test uranium tailings pond change with time rule, assess for the environmental protection of uranium tailings pond and analysis of seepage flow stability and provide theoretical foundation.

Description

Uranium tailings pond uranium tailings and lower sleeping rock-soil layer permeability test device and test method
Technical field
It is especially a kind of for testing uranium tailings pond uranium tailings and lower sleeping the present invention relates to uranium tailings pond safety engineering field The test device and test method of rock-soil layer permeability.
Background technique
Uranium tailings permeability is to study one of parameter indispensable in seepage theory.To uranium tailings pond uranium tailings permeability Test can not only assess the seepage state and stability on Uranium tailings dam under Reservoir Water Level and heavy rainfall, can also predict uranium Risk of the harmful substance to reservoir area underground water pollution in tailings.Meanwhile for the Uranium tailings dam of different type and height, due to people For or operation of nature, the rising of library water body different osmotic pressures can be formed to dam body so that Uranium tailings dam inside can generate Seepage failure effect, it is therefore necessary to the qualitative relationships to intake pressure under certain compactness and uranium tailings infiltration coefficient are studied, and The stabilization sexual intercourse of time and infiltration coefficient.
There are pollution risks to reservoir area underground water for waste water in uranium tailings pond.The infiltration being separated by for water table aquifer and artesian aquifer The lower lower sleeping rock-soil layer of property, it is necessary to simulate different confining pressures, osmotic pressure, temperature, solution to the Transport of pollutant, and under Sleeping rock-soil layer permeability changes with time rule.
In previous experiment and appliance arrangement research, by fields such as technology, professions, no device can be comprehensively quasi- True simulation underground environment changes with time rule to the test of uranium tailings and lower sleeping rock-soil layer permeability and permeability.
Summary of the invention
A kind of uranium tailings pond uranium tailings and Xia Woyan are provided the purpose of the present invention is overcoming the above-mentioned insufficient of the prior art Soil layer permeability test device and test method, with simulation test uranium tailings and lower sleeping rock-soil layer different depth, different temperatures, The permeability of gas, liquid in different frequency vibration stratum or gas-liquid mixed.
The technical scheme is that uranium tailings pond uranium tailings and lower sleeping rock-soil layer permeability test device, including gas Pressure regulation injected system, liquid pressure regulation injected system, pressure-measuring system, excitation system, back pressure system, flow measuring system, number According to collector and insulating box.
The gas pressure regulation injected system includes carbon dioxide air accumulator, nitrogen air accumulator, booster pump, first gas matter Measure flow controller, second gas mass flow controller, third gas mass flow controller, first pressure real-time collector Digital display meter, second pressure real-time collector digital display meter, high-pressure pressure regulating valve, low pressure regulating pressure valve and solenoid valve V1~V9.
Carbon dioxide air accumulator is connect by solenoid valve V1 with first gas mass flow controller inlet end, nitrogen gas storage Tank is connect by solenoid valve V2 with second gas mass flow controller inlet end, booster pump respectively with first gas mass flow Controller inlet end and second gas mass flow controller inlet end connection, first gas mass flow controller outlet side and Second gas mass flow controller outlet side is connect with solenoid valve V3 inlet end, the outlet side solenoid valve V3 and high-pressure pressure regulating valve into Gas end connection, high-pressure pressure regulating valve outlet side respectively with solenoid valve V4, solenoid valve V6 inlet end and first pressure real-time collector number Aobvious table inlet end connection, the outlet side solenoid valve V4 are connect with low pressure regulating pressure valve inlet end, low pressure regulating pressure valve outlet side and solenoid valve The connection of V5 inlet end, the outlet side solenoid valve V5 are real-time with the outlet side solenoid valve V6, solenoid valve V7 inlet end and second pressure respectively The connection of collector digital display meter inlet end, the outlet side solenoid valve V7 are connect with third gas mass flow controller inlet end, third Gas mass flow controller outlet side is connect with solenoid valve V8 and solenoid valve V9 inlet end, and the outlet side solenoid valve V9 and the external world are big Gas is used for row pressure and exhaust.
The liquid pressure regulation injected system includes liquid storage container, accurate injection pump, first piston intermediate receptacle and second Piston intermediate receptacle, liquid storage container are connect by pipeline with the input end of accurate injection pump, the outlet end difference of accurate injection pump It is connect with the input end of first piston intermediate receptacle, second piston intermediate receptacle.
The pressure-measuring system includes gas-liquid stirring device, low pressure sensor, high pressure sensor, solenoid valve V10, electricity Magnet valve V11, gas-liquid stirring device gas-liquid saturated solution outlet end are connect with solenoid valve V10, solenoid valve V11 input end, solenoid valve V10 Outlet end is connect with low pressure sensor input end, and the outlet end solenoid valve V11 is connect with high pressure sensor input end.
The excitation system include ground sample aid device, uranium tailings filler device, exciting device, ring pressure device and Solenoid valve V12, solenoid valve V13, solenoid valve V14, solenoid valve V15, ground sample accommodate device and the installation of uranium tailings filler device On exciting device, exciting device is capable of providing the vibration of different frequency, with oscillation ring locating for simulation test uranium tailings and ground Border, ground sample accommodate device confining pressure device input end solenoid valve and uranium tailings filler device confining pressure device input end solenoid valve respectively with The connection of ring pressure device, the outlet end solenoid valve V12 are connect with uranium tailings filler device input end, the outlet end solenoid valve V13 and ground Sample accommodates the connection of device input end, and solenoid valve V14 input end connect with uranium tailings filler device outlet end, solenoid valve V15 into Mouth end is connect with ground sample aid device outlet end.
The back pressure system includes counterbalance valve, back pressure pump, third pressure real-time collector digital display meter and solenoid valve V16, The outlet end of back pressure pump is connect with the input end of the input end of third pressure real-time collector digital display meter and solenoid valve V16 respectively, The outlet end of solenoid valve V16 and the second input end of counterbalance valve connect.
The flow measuring system includes gas-liquid separator, drier, gas mass flow meter, the first check valve, gas Body collecting bag, second one-way valve, liquid storage container, band data output function balance and the 4th pressure real-time collector digital display meter, the Four pressure real-time collector digital display meter outlet ends are connect with gas-liquid separator input end, gas-liquid separator gas outlet end and drying The connection of device input end, dryer export end connect with gas mass flow meter input end, gas mass flow meter outlet end and the The connection of one check valve inlet end, the first one-way valved outlet end connect with gas collection bag, gas-liquid separator liquid outlet end and the The connection of two check valve inlet ends, second one-way valve outlet end are connect with liquid storage container input end, and liquid storage container is placed on band data On output function balance.
First piston intermediate receptacle, second piston intermediate receptacle, gas-liquid stirring device, low pressure sensor, high pressure sensor, Ground sample accommodates device, uranium tailings filler device, exciting device and solenoid valve V10, solenoid valve V11, solenoid valve V12, electromagnetism Valve V13, solenoid valve V14, solenoid valve V15 are mounted in insulating box, and insulating box realizes solid-liquid-gas three-phase using heating or refrigeration The temperature of tested media regulates and controls, and by detecting element to the feedback of Current Temperatures, voluntarily carries out temperature control, it is ensured that test exists It is carried out under the conditions of required temperature.
The connection relationship of above-mentioned each system is as follows:
The outlet end of solenoid valve V8 is connect with gas-liquid stirring device gas inlet end, the outlet end of accurate injection pump and gas-liquid agitation The connection of device liquid feeding end solenoid valve, the outlet end and gas-liquid stirring device of first piston intermediate receptacle and second piston intermediate receptacle The input end connection of gas-liquid saturated solution outlet end solenoid valve and solenoid valve V12, solenoid valve V13, solenoid valve V14 and solenoid valve V15 Outlet end with connect respectively with the first input end of counterbalance valve, counterbalance valve outlet end and the 4th pressure real-time collector digital display meter import End connection.
Data collector signal end a1 connect by signal wire with gas mass flow meter signal end, a2 pass through signal wire and The connection of 4th pressure real-time collector digital display meter signal end, a3 are connect by signal wire with exciting device signal end, and a4 passes through letter Number line is connect with ring pressure device signal end, and a5 is connect by signal wire with high pressure sensor signal end, a6 pass through signal wire with it is low The connection of pressure sensor signal end, a7 are connect by signal wire with third pressure real-time collector digital display meter signal end, and a8 passes through letter Number line is connect with third gas mass flow controller signal end, and a9 passes through signal wire and second pressure real-time collector digital display meter Signal end connection, a10 connects by signal wire with first pressure real-time collector digital display meter signal end, a11 pass through signal wire and The connection of second gas mass flow controller signal end, a12 are connect by signal wire with accurate injection pump signal end, and a13 passes through Signal wire is connect with first gas mass flow controller signal end, and a14 is connect by signal wire with insulating box signal end, a15 It is connect by signal wire with data output function balance signal end.
Solenoid valve in booster pump, high-pressure pressure regulating valve, low pressure regulating pressure valve, back pressure pump and test device all passes through electrical control lines point It is not connected with data collector, and its open and close is controlled by data collector.
The present invention also provides a kind of using uranium tailings pond uranium tailings and under lower sleeping rock-soil layer permeability test device test The method of sleeping rock-soil layer permeability and uranium tailings permeability, including using gas-liquid mixed measurement, the measurement of single mixed gas and list One liquid measure.
One, sleeping rock-soil layer permeability and uranium tailings permeability are measured down using gas-liquid mixed specific step is as follows:
A, the preparation before test
A1, ground sample aid device and uranium tailings filler device are removed from the exciting device in test device, by acquirement Standard-sized lower sleeping rock-soil layer sample is packed into ground sample aid device, and uranium tailings is layered and is packed into uranium tailings filler device It is interior, and uranium tailings is densified to uranium tailings volume density value in situ, ground sample is accommodated into device after filling and uranium tailings is filled out Assembling device reinstalls on exciting device；
A2, log-on data collector close all solenoid valves by data collector control, check pipeline air-tightness, and by rock Earth sample aid device sample loading cylinder body length and uranium tailings filler device sample loading cylinder body length are input to data collector, and according to Test request simulates temperature environment locating for uranium tailings and ground and sets calorstat temperature.
B, gas-liquid saturated solution needed for preparation test
B1, accurate injection pump, first piston intermediate receptacle input end solenoid valve and second piston intermediate receptacle input end electricity are opened Magnet valve will test liquid from storage according to the constant flow rate and constant pressure of the test liquid injection set in data collector Liquid container injects first piston intermediate receptacle and second piston intermediate receptacle, liquid to be tested fill first piston intermediate receptacle and After second piston intermediate receptacle, first piston intermediate receptacle outlet end solenoid valve, second piston intermediate receptacle outlet end electricity are opened Magnet valve and solenoid valve V12, solenoid valve V13, by test liquid injection ground sample aid device and uranium tailings filler device, to it Infiltration is closed in solenoid valve V12, solenoid valve V13, first piston intermediate receptacle input end solenoid valve and second piston to after being saturated Between vessel inlet end solenoid valve；
B2, solenoid valve V1, solenoid valve V2 and booster pump input carbon dioxide and nitrogen are opened, passes through first gas mass flow control Device processed and second gas mass flow controller adjust air inflow, adjust carbon dioxide in gas mixture and nitrogen according to test request Then the ratio of gas opens solenoid valve V3, carry out first time pressure regulation, the first pressure by mixed gas of the high-pressure pressure regulating valve to injection Gas pressure value is fed back to data collector by power real-time collector digital display meter, if required gas pressure value when reaching test, Solenoid valve V6 is opened, if required gas pressure value is not up to tested in first time pressure regulation, opens solenoid valve V4 and V5, second pressure Gas pressure value is fed back to data collector by real-time collector digital display meter, by low pressure regulating pressure valve to the mixed gas of injection into Second of pressure regulation of row, required gas pressure value when reaching test；
B3, stirring intermediate receptacle liquid feeding end solenoid valve is opened, test liquid is injected into stirring intermediate receptacle from liquid storage container, it is to be measured After test solution body fills stirring intermediate receptacle, opens solenoid valve V7, solenoid valve V8 and inject mixed gas, third gas mass flow control The data collector that device processed feeds back to air inflow, controls air inflow by data collector, then opens stirring intermediate receptacle Speed-regulating switch sets mixing speed, gas-liquid saturated solution needed for test is obtained after stirring.
C, to the test of lower sleeping rock-soil layer sample gas-liquid permeability
C1, stirring intermediate receptacle gas-liquid saturated solution outlet end solenoid valve and solenoid valve V13, solenoid valve V15 are opened, to ground sample It accommodates device and injects gas-liquid saturated solution, after gas-liquid saturated solution enters ground sample aid device, starting exciting device, according to test It is required that vibration environment locating for simulation ground；
C2, ground sample aid device confining pressure device input end solenoid valve is opened, device is accommodated to ground sample by ring pressure device Input pressure establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure acquires in real time After the pressure value that device digital display meter is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure are opened Pump applies reversed back pressure to test sample, and reversed back pressure value is fed back to data and acquired by third pressure real-time collector digital display meter Then device opens solenoid valve V11, first accommodate device input end Gas fluid pressure force value using high pressure sensor test ground sample, if Pressure value is tested in low pressure sensor range ability, then closes solenoid valve V11, solenoid valve V10 is opened, using low pressure sensor It tests ground sample and accommodates device input end Gas fluid pressure force value, if test pressure value exceeds low pressure sensor range ability, in height In pressure sensor range ability, then device input end Gas fluid pressure force value is still accommodated using high pressure sensor test ground sample；
After C3, the pressure needed for ground sample aid device input end Gas fluid pressure force value reaches test, gas-liquid separator is opened Inlet end valve and the first check valve and second one-way valve, gas-liquid saturated solution are injected into gas-liquid separator, and gas-liquid separator is to gas Liquid saturated solution carries out gas-liquid separation, and gas is discharged from gas-liquid separator gas outlet end, by drier, gas mass flow meter And first check valve enter gas collection bag, liquid is discharged from gas-liquid separator liquid outlet end, is entered by second one-way valve Liquid storage container measures the liquid in liquid storage container with data output function balance；
C4, data collector acquire gas flow by gas mass flow meter, acquire liquid by data output function balance Flow, and data are automatically saved and handle, to obtain lower sleeping rock-soil layer sample in different temperatures, different pressures, different gas-liquids Gas-liquid permeability under traffic conditions.
D, to the test of uranium tailings body gas-liquid permeability
D1, close solenoid valve V13, solenoid valve V15 and and ground sample accommodate device confining pressure device input end solenoid valve, exclude flow Gas and liquid in metering system；
D2, stirring intermediate receptacle gas-liquid saturated solution outlet end solenoid valve and solenoid valve V12, solenoid valve V14 are opened, is filled out to uranium tailings Assembling device injects gas-liquid saturated solution, after gas-liquid saturated solution enters uranium tailings filler device, starts exciting device, according to test request Simulate vibration environment locating for uranium tailings；
D3, uranium tailings filler device confining pressure device input end solenoid valve is opened, is inputted by ring pressure device to uranium tailings filler device Pressure establishes confining pressure in test sample surrounding, prevents tested media along uranium tailings surrounding crossfire, when the 4th pressure real-time collector After the pressure value that digital display meter is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure pump are opened, Applying reversed back pressure to test sample, reversed back pressure value is fed back to data collector by third pressure real-time collector digital display meter, Then solenoid valve V11 is opened, uranium tailings filler device input end Gas fluid pressure force value is first tested using high pressure sensor, if test pressure Force value then closes solenoid valve V11 in low pressure sensor range ability, opens solenoid valve V10, tests uranium using low pressure sensor Tailings filler device input end Gas fluid pressure force value, if test pressure value exceeds low pressure sensor range ability, in high pressure sensor In range ability, then uranium tailings filler device input end Gas fluid pressure force value is still tested using high pressure sensor；
D4, when uranium tailings filler device input end Gas fluid pressure force value reach test needed for pressure after, open gas-liquid separator into Gas end valve door and the first check valve and second one-way valve, gas-liquid saturated solution are injected into gas-liquid separator, and gas-liquid separator is to gas-liquid Saturated solution carry out gas-liquid separation, gas from gas-liquid separator gas outlet end be discharged, by drier, gas mass flow meter and First check valve enters gas collection bag, and liquid is discharged from gas-liquid separator liquid outlet end, enters storage by second one-way valve Liquid container measures the liquid in liquid storage container with data output function balance；
D5, data collector acquire gas flow by gas mass flow meter, acquire liquid by data output function balance Flow, and data are automatically saved and handle, to obtain uranium tailings sample in different temperatures, different pressures, different gas-liquid flows In the case of gas-liquid permeability.
Two, using sleeping rock-soil layer permeability under the measurement of single mixed gas and uranium tailings permeability, specific step is as follows:
A, the preparation before test
A1, ground sample aid device and uranium tailings filler device are removed from the exciting device in test device, by acquirement Standard-sized lower sleeping rock-soil layer sample is packed into ground sample aid device, and uranium tailings is layered and is packed into uranium tailings filler device It is interior, and uranium tailings is densified to uranium tailings volume density value in situ, ground sample is accommodated into device after filling and uranium tailings is filled out Assembling device reinstalls on exciting device；
A2, log-on data collector close all solenoid valves by data collector control, check pipeline air-tightness, and by rock Earth sample aid device sample loading cylinder body length and uranium tailings filler device sample loading cylinder body length are input to data collector, and according to Test request simulates temperature environment locating for uranium tailings and ground and sets calorstat temperature.
B, mixed gas needed for preparation test
Solenoid valve V1, solenoid valve V2 and booster pump input carbon dioxide and nitrogen are opened, is controlled by first gas mass flow Device and second gas mass flow controller adjust air inflow, adjust carbon dioxide in gas mixture and nitrogen according to test request Ratio, then open solenoid valve V3, first time pressure regulation, first pressure carried out to the mixed gas of injection by high-pressure pressure regulating valve Gas pressure value is fed back to data collector by real-time collector digital display meter, if required gas pressure value when reaching test, beats Open electromagnetic valve V6 opens solenoid valve V4 and V5 if required gas pressure value is not up to tested in first time pressure regulation, and second pressure is real When collector digital display meter gas pressure value fed back into data collector, carried out by mixed gas of the low pressure regulating pressure valve to injection Second of pressure regulation, required gas pressure value when reaching test.
C, solenoid valve V7 and solenoid valve V8 is opened, injects mixed gas, third gas mass flow to stirring intermediate receptacle The data collector that controller feeds back to air inflow controls air inflow by data collector.
D, to the test of lower sleeping rock-soil layer sample gas permeability
D1, when mixed gas fill stirring intermediate receptacle after, open stirring intermediate receptacle gas-liquid saturated solution outlet end solenoid valve and Solenoid valve V13, solenoid valve V15 inject mixed gas to ground sample aid device, and mixed gas enters ground sample aid dress It postpones, starts exciting device, according to vibration environment locating for test request simulation ground；
D2, ground sample aid device confining pressure device input end solenoid valve is opened, device is accommodated to ground sample by ring pressure device Input pressure establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure acquires in real time After the pressure value that device digital display meter is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure are opened Pump applies reversed back pressure to test sample, and reversed back pressure value is fed back to data and acquired by third pressure real-time collector digital display meter Then device opens solenoid valve V11, first accommodate device input end gas pressure value using high pressure sensor test ground sample, if Pressure value is tested in low pressure sensor range ability, then closes solenoid valve V11, solenoid valve V10 is opened, using low pressure sensor It tests ground sample and accommodates device input end gas pressure value, if test pressure value exceeds low pressure sensor range ability, in height In pressure sensor range ability, then device input end gas pressure value is still accommodated using high pressure sensor test ground sample；
After D3, the pressure needed for ground sample aid device input end gas pressure value reaches test, gas-liquid separator is opened Inlet end valve and the first check valve, mixed gas are injected into gas-liquid separator, are discharged from gas-liquid separator gas outlet end, warp It crosses drier, gas mass flow meter and the first check valve and enters gas collection bag；
D4, data collector acquire gas flow by gas mass flow meter, and automatically save and handle data, to obtain Gas permeability of the sleeping rock-soil layer sample in different temperatures, different pressures and different gas flow down.
E, to the test of uranium tailings body gas permeability
E1, solenoid valve V13, solenoid valve V15 and ground sample aid device confining pressure device input end solenoid valve are closed, excludes flowmeter The gas of amount system；
E2, when mixed gas fill stirring intermediate receptacle after, open stirring intermediate receptacle gas-liquid saturated solution outlet end solenoid valve and Solenoid valve V12, solenoid valve V14 inject mixed gas to uranium tailings filler device, and mixed gas enters uranium tailings filler device Afterwards, start exciting device, according to vibration environment locating for test request simulation ground；
E3, uranium tailings filler device confining pressure device input end solenoid valve is opened, is inputted by ring pressure device to uranium tailings filler device Pressure establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure real-time collector number After the pressure value that aobvious table is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure pump are opened, to Test sample applies reversed back pressure, and reversed back pressure value is fed back to data collector by third pressure real-time collector digital display meter, so Solenoid valve V11 is opened afterwards, uranium tailings filler device input end gas pressure value is first tested using high pressure sensor, if test pressure Value then closes solenoid valve V11 in low pressure sensor range ability, opens solenoid valve V10, tests uranium tail using low pressure sensor Sand filler device input end gas pressure value, if test pressure value exceeds low pressure sensor range ability, in high pressure sensor amount Within the scope of journey, then uranium tailings filler device input end gas pressure value is still tested using high pressure sensor；
E4, when uranium tailings filler device input end gas pressure value reach test needed for pressure after, open gas-liquid separator into Gas end valve door and the first check valve, mixed gas are injected into gas-liquid separator, are discharged from gas-liquid separator gas outlet end, pass through Drier, gas mass flow meter and the first check valve enter gas collection bag；
E5, data collector acquire gas flow by gas mass flow meter, and automatically save and handle data, to obtain Gas permeability of the uranium tailings sample in different temperatures, different pressures and different gas flow.
Three, sleeping rock-soil layer permeability and uranium tailings permeability are measured down using single liquid specific step is as follows:
A, the preparation before test
A1, ground sample aid device and uranium tailings filler device are removed from the exciting device in test device, by acquirement Standard-sized lower sleeping rock-soil layer sample is packed into ground sample aid device, and uranium tailings is layered and is packed into uranium tailings filler device It is interior, and uranium tailings is densified to uranium tailings volume density value in situ, ground sample is accommodated into device after filling and uranium tailings is filled out Assembling device reinstalls on exciting device；
A2, log-on data collector close all solenoid valves by data collector control, check pipeline air-tightness, and by rock Earth sample aid device sample loading cylinder body length and uranium tailings filler device sample loading cylinder body length are input to data collector, and according to Test request simulates temperature environment locating for uranium tailings and ground and sets calorstat temperature.
B, accurate injection pump, first piston intermediate receptacle input end solenoid valve and second piston intermediate receptacle input end are opened Solenoid valve, according to set in data collector test liquid injection constant flow rate and constant pressure, will test liquid from Liquid storage container injection first piston intermediate receptacle and second piston intermediate receptacle, liquid to be tested fill first piston intermediate receptacle After second piston intermediate receptacle, first piston intermediate receptacle outlet end solenoid valve, second piston intermediate receptacle outlet end are opened Test liquid injection ground sample is accommodated device and uranium tailings filler device by solenoid valve and solenoid valve V12, solenoid valve V13, to It is infiltrated to after being saturated, and closes solenoid valve V12, solenoid valve V13, first piston intermediate receptacle input end solenoid valve and second piston Intermediate receptacle input end solenoid valve.
C, to the test of lower sleeping rock-soil layer sample liquids permeability
C1, first piston intermediate receptacle input end solenoid valve, second piston intermediate receptacle input end solenoid valve, solenoid valve are opened V13, solenoid valve V15, liquid inject ground sample and accommodate device；
C2, ground sample aid device confining pressure device input end solenoid valve is opened, device is accommodated to ground sample by ring pressure device Input pressure establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure acquires in real time After the pressure value that device digital display meter is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure are opened Pump applies reversed back pressure to test sample, and reversed back pressure value is fed back to data and acquired by third pressure real-time collector digital display meter Then device opens solenoid valve V11, first accommodate device input end liquid pressure value using high pressure sensor test ground sample, if Pressure value is tested in low pressure sensor range ability, then closes solenoid valve V11, solenoid valve V10 is opened, using low pressure sensor It tests ground sample and accommodates device input end liquid pressure value, if test pressure value exceeds low pressure sensor range ability, in height In pressure sensor range ability, then device input end liquid pressure value is still accommodated using high pressure sensor test ground sample；
After C3, the pressure needed for ground sample aid device input end liquid pressure value reaches test, gas-liquid separator is opened Inlet end valve and second one-way valve, liquid are injected into gas-liquid separator, are discharged from gas-liquid separator liquid outlet end, by the Two check valves enter liquid storage container, measure with data output function balance to the liquid in liquid storage container；
C4, data collector acquire fluid flow by data output function balance, and automatically save and handle data, thus To Test Liquid Permeability of Core of the uranium tailings sample in different temperatures, different pressures, different gas-liquid flows.
D, to the test of uranium tailings Test Liquid Permeability of Core
D1, solenoid valve V13, solenoid valve V15 and ground sample aid device confining pressure device input end solenoid valve are closed, excludes flowmeter The liquid of amount system；
D2, first piston intermediate receptacle input end solenoid valve, second piston intermediate receptacle input end solenoid valve, solenoid valve are opened V12, solenoid valve V14, liquid inject uranium tailings filler device；
D3, uranium tailings filler device confining pressure device input end solenoid valve is opened, is inputted by ring pressure device to uranium tailings filler device Pressure establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure real-time collector number After the pressure value that aobvious table is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure pump are opened, to Test sample applies reversed back pressure, and reversed back pressure value is fed back to data collector by third pressure real-time collector digital display meter, so Solenoid valve V11 is opened afterwards, uranium tailings filler device input end liquid pressure value is first tested using high pressure sensor, if test pressure Value then closes solenoid valve V11 in low pressure sensor range ability, opens solenoid valve V10, tests uranium tail using low pressure sensor Sand filler device input end liquid pressure value, if test pressure value exceeds low pressure sensor range ability, in high pressure sensor amount Within the scope of journey, then uranium tailings filler device input end liquid pressure value is still tested using high pressure sensor；
D4, when uranium tailings filler device input end liquid pressure value reach test needed for pressure after, open gas-liquid separator into Gas end valve door and second one-way valve, liquid are injected into gas-liquid separator, are discharged from gas-liquid separator liquid outlet end, pass through second Check valve enters liquid storage container, measures with data output function balance to the liquid in liquid storage container；
D5, data collector acquire fluid flow by data output function balance, and automatically save and handle data, thus To Test Liquid Permeability of Core of the uranium tailings sample in different temperatures, different pressures, different gas-liquid flows.
Compared with the prior art, the invention has the following features:
Test device provided by the invention can all-sidedly and accurately simulate underground environment to uranium tailings and lower sleeping rock-soil layer permeability Test and permeability change with time rule, for the environmental protection of uranium tailings pond and analysis of seepage flow stability assessment provide it is theoretical according to According to.
Detailed construction of the invention is further described below in conjunction with the drawings and specific embodiments.
Detailed description of the invention
Attached drawing 1 is uranium tailings pond uranium tailings provided by the invention and lower sleeping rock-soil layer permeability test device structural representation Figure.
Specific embodiment
Embodiment one, uranium tailings pond uranium tailings and lower sleeping rock-soil layer permeability test device, including gas pressure regulation injection system System, liquid pressure regulation injected system, pressure-measuring system, excitation system, back pressure system, flow measuring system, data collector 32 And insulating box 35.
The gas pressure regulation injected system includes carbon dioxide air accumulator 1, nitrogen air accumulator 2, booster pump 3, the first gas Weight flow controller 4, second gas mass flow controller 5, third gas mass flow controller 10, first pressure are real When collector digital display meter 6, second pressure real-time collector digital display meter 9, high-pressure pressure regulating valve 7, low pressure regulating pressure valve 8 and solenoid valve V1 ~ V9。
Carbon dioxide air accumulator 1 is connect by solenoid valve V1 with 4 inlet end of first gas mass flow controller, nitrogen storage Gas tank 2 is connect by solenoid valve V2 with 5 inlet end of second gas mass flow controller, booster pump 3 respectively with first gas matter Measure 4 inlet end of flow controller and the connection of 5 inlet end of second gas mass flow controller, first gas mass flow controller 4 outlet sides and 5 outlet side of second gas mass flow controller are connect with solenoid valve V3 inlet end, the outlet side solenoid valve V3 and height Press 7 inlet end of pressure regulator valve connection, 7 outlet side of high-pressure pressure regulating valve respectively with solenoid valve V4, solenoid valve V6 inlet end and first pressure The connection of 6 inlet end of real-time collector digital display meter, the outlet side solenoid valve V4 are connect with 8 inlet end of low pressure regulating pressure valve, low pressure regulating pressure valve 8 Outlet side is connect with solenoid valve V5 inlet end, the outlet side solenoid valve V5 respectively with the outlet side solenoid valve V6, solenoid valve V7 inlet end And the connection of 9 inlet end of second pressure real-time collector digital display meter, the outlet side solenoid valve V7 and third gas mass flow controller The connection of 10 inlet ends, 10 outlet side of third gas mass flow controller are connect with solenoid valve V8 and solenoid valve V9 inlet end, electricity The outlet side magnet valve V9 and ambient atmosphere are used for row pressure and exhaust.
The gas pressure regulation injected system is used to provide the test gas of different pressures to test device, to guarantee pressure regulation Precision, system use the high-pressure pressure regulating valve 7 and low pressure regulating pressure valve 8 of different range of regulation, and when test is selected as needed, high 7 inlet pressure of pressure regulator valve is pressed to be less than 32MPa, in 0~20MPa and adjustable, 8 inlet pressure of low pressure regulating pressure valve is less than outlet pressure 0.2MPa, outlet pressure is in 0~0.1MPa and adjustable.Air inflow, the flow control of gas mass flow controller are tested for control Range processed is 0 ~ 5000sccm, measurement accuracy ± 1%.
The liquid pressure regulation injected system includes liquid storage container 11, accurate injection pump 12, first piston intermediate receptacle 13 And second piston intermediate receptacle 14, liquid storage container 11 are connect by pipeline with the input end of accurate injection pump 12, accurate injection pump 12 outlet end is connect with the input end of first piston intermediate receptacle 13, second piston intermediate receptacle 14 respectively.
The accurate injection pump 12 is for adjusting and constant inlet hydraulic and feed liquor flow, maximum pressure 20MPa.
The gas pressure regulation injected system and liquid pressure regulation injected system is that gas-liquid stirring device 15 provides gas and liquid Body, to need to configure gas-liquid saturated solution according to test.
The pressure-measuring system includes gas-liquid stirring device 15, low pressure sensor 16, high pressure sensor 17, solenoid valve V10, solenoid valve V11,15 gas-liquid saturated solution outlet end of gas-liquid stirring device are connect with solenoid valve V10, solenoid valve V11 input end, The outlet end solenoid valve V10 is connect with 16 input end of low pressure sensor, and the outlet end solenoid valve V11 and 17 input end of high pressure sensor connect It connects.
The low pressure sensor 16 and high pressure sensor 17 use precision for 0.1% pressure sensor, for measuring uranium The pressure of tailings filler device 19 and ground sample aid 18 import tested media of device, 17 pressure inverting tolerance of high pressure sensor Journey 25MPa；16 pressure transmitter range 1MPa of low pressure sensor, the size of view pressure uses when test, it is ensured that system accuracy and Stability.
The excitation system includes ground sample aid device 18, uranium tailings filler device 19, exciting device 33, ring pressure Device 34 and solenoid valve V12, solenoid valve V13, solenoid valve V14, solenoid valve V15, ground sample aid device 18 and uranium tailings are filled out Assembling device 19 is mounted on exciting device 33, and exciting device 33 is capable of providing the vibration of different frequency, with simulation test uranium tailings With vibration environment locating for ground, ground sample accommodates 18 confining pressure device input end solenoid valve of device and 19 confining pressure of uranium tailings filler device Device input end solenoid valve is connect with ring pressure device 34 respectively, and the outlet end solenoid valve V12 and 19 input end of uranium tailings filler device connect It connects, the outlet end solenoid valve V13 is connect with ground sample aid 18 input end of device, and solenoid valve V14 input end and uranium tailings load The connection of 19 outlet end of device, solenoid valve V15 input end are connect with ground sample aid 18 outlet end of device.
The ring pressure device 34 is made of manual pump and ring pressure table, accommodates device 18 for ground sample and uranium tailings is filled out The foundation of 19 confining pressure of assembling device prevents tested media along ground surrounding crossfire.
The back pressure system includes counterbalance valve 20, back pressure pump 21, third pressure real-time collector digital display meter 22 and electromagnetism Valve V16, the outlet end of back pressure pump 21 respectively with the input end of third pressure real-time collector digital display meter 22 and solenoid valve V16 into The connection of mouth end, the outlet end of solenoid valve V16 is connect with the second input end of counterbalance valve 20.
The back pressure system is used to provide reversed back pressure to uranium tailings filler device 19 and ground sample aid device 18, The maximum pressure of offer is 20Mpa, and control precision is 0.1MPa.
The flow measuring system includes that gas-liquid separator 23, drier 24, gas mass flow meter 25, first are unidirectional Valve 26, gas collection bag 27, second one-way valve 28, liquid storage container 29, band data output function balance 30 and the 4th pressure are real-time Collector digital display meter 31,31 outlet end of the 4th pressure real-time collector digital display meter are connect with 23 input end of gas-liquid separator, gas-liquid 23 gas outlet end of separator is connect with 24 input end of drier, 24 outlet end of drier and 25 input end of gas mass flow meter Connection, 25 outlet end of gas mass flow meter are connect with 26 input end of the first check valve, 26 outlet end of the first check valve and gas Collecting bag 27 connects, and 23 liquid outlet end of gas-liquid separator is connect with 28 input end of second one-way valve, and second one-way valve 28 exports End is connect with 29 input end of liquid storage container, and liquid storage container 29 is placed on band data output function balance 30.
The gas mass flow meter 25 is for measuring the gas flow of gas in normal conditions, and operating pressure is not More than 10MPa, test scope is 0~300sccm.
The data collector 32 includes converter, signal reformer plate, computer data acquiring and peripheral circuit, number Word capture card, industrial control computer, application software, gas and liquid phase measuring software, data collector 32 is for acquiring pressure, stream Amount, temperature real time data and the signal control to electric elements, and computing permeability and Drawing of Curve are carried out according to the data obtained, Acquired results voluntarily store in systems.
32 Test Liquid Permeability of Core of the data collector calculating meets following formula:
(1)
In formula (1): K1Indicate Test Liquid Permeability of Core, unit 10-3μm2；μ1Indicate liquid viscosity, unit mpas；L is indicated Ground sample accommodates 18 sample loading cylinder body length of device and 19 sample loading cylinder body length of uranium tailings filler device, unit cm；Q indicates liquid Body flow, unit ml/s；A indicates ground sample aid 18 sample loading cylinder intracoelomic cavity area of section of device and uranium tailings filler device 19 sample loading cylinder intracoelomic cavity areas of section, unit cm2；△ P indicates ground sample aid device 18 and uranium tailings filler device 19 Both ends pressure difference, unit MPa.
32 gas permeability of the data collector calculating meets following formula:
(2)
In formula (2): Q0Indicate gas flow under atmospheric pressure, unit ml/min；P0Indicate atmospheric pressure, unit Kpa；μ2It indicates Gas viscosity, unit mpas；P1Indicate ground sample aid device 18 and 19 inlet pressure of uranium tailings filler device, unit For Kpa；K2Indicate gas permeability, unit 10-3μm2。
The flow Q that gas mass flow meter 25 measures1For the gas flow of 1 normal atmosphere pressure, when measurement, will be to it It being corrected, correction meets following formula,
(3)
In formula (3): T indicates environment temperature when test.
First piston intermediate receptacle 13, second piston intermediate receptacle 14, gas-liquid stirring device 15, low pressure sensor 16, height Pressure sensor 17, ground sample aid device 18, uranium tailings filler device 19, exciting device 33 and solenoid valve V10, solenoid valve V11, solenoid valve V12, solenoid valve V13, solenoid valve V14, solenoid valve V15 are mounted in insulating box 35, and insulating box 35 is using heating Or refrigeration realizes the regulation of solid-liquid-gas three-phase tested media temperature, and by detecting element to the feedback of Current Temperatures, voluntarily Carry out temperature control, it is ensured that test carries out under the conditions of required temperature.
The connection relationship of above-mentioned each system is as follows:
The outlet end of solenoid valve V8 is connect with 15 gas inlet end of gas-liquid stirring device, the outlet end of accurate injection pump 12 and gas-liquid The connection of 15 liquid feeding end solenoid valve of agitating device, the outlet end and gas of first piston intermediate receptacle 13 and second piston intermediate receptacle 14 The input end connection of 15 gas-liquid saturated solution outlet end solenoid valve of alloy melt stirring device and solenoid valve V12, solenoid valve V13, solenoid valve V14 And the outlet end solenoid valve V15 with connect respectively with 20 first input end of counterbalance valve, 20 outlet end of counterbalance valve and the 4th pressure are real-time The connection of 31 input end of collector digital display meter.
32 signal end a1 of data collector is connect by signal wire with 25 signal end of gas mass flow meter, and a2 passes through letter Number line is connect with 31 signal end of the 4th pressure real-time collector digital display meter, and a3 is connected by signal wire and 33 signal end of exciting device It connects, a4 is connect by signal wire with 34 signal end of ring pressure device, and a5 is connect by signal wire with 17 signal end of high pressure sensor, a6 It is connect by signal wire with 16 signal end of low pressure sensor, a7 is believed by signal wire and third pressure real-time collector digital display meter 22 Number end connection, a8 are connect by signal wire with 10 signal end of third gas mass flow controller, and a9 passes through signal wire and second The connection of 9 signal end of pressure real-time collector digital display meter, a10 pass through signal wire and 6 signal of first pressure real-time collector digital display meter End connection, a11 are connect by signal wire with 5 signal end of second gas mass flow controller, and a12 is infused by signal wire with accurate Enter pump 12 signal ends connection, a13 is connect by signal wire with 4 signal end of first gas mass flow controller, and a14 passes through signal Line is connect with 35 signal end of insulating box, and a15 is connect by signal wire with 30 signal end of data output function balance.
Solenoid valve in booster pump 3, high-pressure pressure regulating valve 7, low pressure regulating pressure valve 8, back pressure pump 21 and test device all passes through electricity Control line is connected with data collector 32 respectively, and controls its open and close by data collector 32.
Embodiment two, using uranium tailings pond uranium tailings and lower sleeping rock-soil layer permeability test device test uranium tailings and lower sleeping The method of rock-soil layer permeability, sleeping rock-soil layer permeability and uranium tailings permeability under the present embodiment is measured using gas-liquid mixed, Specific step is as follows:
A, the preparation before test
A1, ground sample aid device 18 and uranium tailings filler device 19 are removed from the exciting device 33 in test device, it will The standard-sized lower sleeping rock-soil layer sample obtained is packed into ground sample aid device 18, and uranium tailings is layered and is packed into uranium tailings In filler device 19, and uranium tailings is densified to uranium tailings volume density value in situ, ground sample is accommodated into device after filling 18 and uranium tailings filler device 19 reinstall on exciting device 33；
A2, log-on data collector 32 close all solenoid valves by the control of data collector 32, check pipeline air-tightness, and Ground sample is accommodated into 18 sample loading cylinder body length of device and 19 sample loading cylinder body length of uranium tailings filler device is input to data acquisition Device 32, and the temperature environment according to locating for test request simulation uranium tailings and ground sets 35 temperature of insulating box.
B, gas-liquid saturated solution needed for preparation test
B1, open accurate injection pump 12,13 input end solenoid valve of first piston intermediate receptacle and second piston intermediate receptacle 14 into Mouth end solenoid valve will be tested according to the constant flow rate and constant pressure of the test liquid injection set in data collector 32 Liquid injects first piston intermediate receptacle 13 from liquid storage container 11 and second piston intermediate receptacle 14, liquid to be tested fill first After piston intermediate receptacle 13 and second piston intermediate receptacle 14,13 outlet end solenoid valve of first piston intermediate receptacle, second are opened 14 outlet end solenoid valve of piston intermediate receptacle and solenoid valve V12, solenoid valve V13, by test liquid injection ground sample aid dress 18 and uranium tailings filler device 19 are set, after its infiltration to after being saturated, close solenoid valve V12, solenoid valve V13, among first piston 14 input end solenoid valve of 13 input end solenoid valve of container and second piston intermediate receptacle；
B2, solenoid valve V1, solenoid valve V2 and the input carbon dioxide of booster pump 3 and nitrogen are opened, passes through first gas mass flow Controller 4 and second gas mass flow controller 5 adjust air inflow, adjust carbon dioxide in gas mixture according to test request With the ratio of nitrogen, solenoid valve V3 is then opened, the mixed gas injected by 7 Duis of high-pressure pressure regulating valve carries out first time pressure regulation, Gas pressure value is fed back to data collector 32 by first pressure real-time collector digital display meter 6, if required gas when reaching test Pressure value then opens solenoid valve V6, if first time pressure regulation not up to test needed for gas pressure value, open solenoid valve V4 and Gas pressure value is fed back to data collector 3 by V5, second pressure real-time collector digital display meter 9, is infused by 8 Duis of low pressure regulating pressure valve The mixed gas entered carries out second of pressure regulation, required gas pressure value when reaching test；
B3, stirring 15 liquid feeding end solenoid valve of intermediate receptacle is opened, test liquid is injected into stirring intermediate receptacle from liquid storage container 11 15, after liquid to be tested fills stirring intermediate receptacle 15, opens solenoid valve V7, solenoid valve V8 and inject mixed gas, third gas The data collector 32 that mass flow controller 10 feeds back to air inflow controls air inflow by data collector 32, then Stirring 15 speed-regulating switch of intermediate receptacle is opened, mixing speed is set, gas-liquid saturated solution needed for test is obtained after stirring.
C, to the test of lower sleeping rock-soil layer sample gas-liquid permeability
C1, stirring 15 gas-liquid saturated solution outlet end solenoid valve of intermediate receptacle and solenoid valve V13, solenoid valve V15 are opened, to ground sample Product accommodate device 18 and inject gas-liquid saturated solution, after gas-liquid saturated solution enters ground sample aid device 18, starting exciting device 33, According to vibration environment locating for test request simulation ground；
C2, ground sample aid 18 confining pressure device input end solenoid valve of device is opened, is accommodated by ring pressure device 34 to ground sample 18 input pressure of device establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure reality When the pressure value that feeds back to of collector digital display meter 31 reach back pressure set by data collector 32 after, open solenoid valve V16, back Pressure valve 20, back pressure pump 21 apply reversed back pressure to test sample, and third pressure real-time collector digital display meter 22 is by reversed back pressure value Data collector 32 is fed back to, solenoid valve V11 is then opened, ground sample is first tested using high pressure sensor 17 and accommodates device 18 Input end Gas fluid pressure force value opens electricity if test pressure value closes solenoid valve V11 in 16 range ability of low pressure sensor Magnet valve V10 tests ground sample using low pressure sensor 16 and accommodates 18 input end Gas fluid pressure force value of device, if test pressure value is super 16 range ability of low pressure sensor out then still tests ground using high pressure sensor 17 in 17 range ability of high pressure sensor Sample accommodates 18 input end Gas fluid pressure force value of device；
After C3, the pressure needed for ground sample aid 18 input end Gas fluid pressure force value of device reaches test, gas-liquid separation is opened 23 inlet end valve of device and the first check valve 26 and second one-way valve 28, gas-liquid saturated solution are injected into gas-liquid separator 23, gas-liquid Separator 23 carries out gas-liquid separation to gas-liquid saturated solution, and gas is discharged from 23 gas outlet end of gas-liquid separator, by drier 24, gas mass flow meter 25 and the first check valve 26 enter gas collection bag 27, and liquid is from 23 liquid outlet of gas-liquid separator End discharge enters liquid storage container 29 by second one-way valve 28, with data output function balance 30 to the liquid in liquid storage container 29 Body is measured；
C4, data collector 32 acquire gas flow by gas mass flow meter 25, are adopted by data output function balance 30 Collect fluid flow, and automatically save and handle data, to obtain lower sleeping rock-soil layer sample in different temperatures, different pressures, no With the gas-liquid permeability in the case of gas-liquid flow.
D, to the test of uranium tailings body gas-liquid permeability
D1, close solenoid valve V13, solenoid valve V15 and and ground sample accommodate 18 confining pressure device input end solenoid valve of device, exclude stream Gas and liquid in consumption metering system；
D2, stirring 15 gas-liquid saturated solution outlet end solenoid valve of intermediate receptacle and solenoid valve V12, solenoid valve V14 are opened, to uranium tailings Filler device 19 injects gas-liquid saturated solution, after gas-liquid saturated solution enters uranium tailings filler device 19, starts exciting device 33, according to Test request simulates vibration environment locating for uranium tailings；
D3,19 confining pressure device input end solenoid valve of uranium tailings filler device is opened, by ring pressure device 34 to uranium tailings filler device 19 input pressures establish confining pressure in test sample surrounding, prevent tested media along uranium tailings surrounding crossfire, when the 4th pressure is real-time After the pressure value that collector digital display meter 31 is fed back to reaches back pressure set by data collector 32, solenoid valve V16, back pressure are opened Valve 20, back pressure pump 21 apply reversed back pressure to test sample, and third pressure real-time collector digital display meter 22 is anti-by reversed back pressure value It is fed back to data collector 32, then opens solenoid valve V11,19 import of uranium tailings filler device is first tested using high pressure sensor 17 Gas fluid pressure force value is held, if test pressure value closes solenoid valve V11 in 16 range ability of low pressure sensor, opens solenoid valve V10 tests 19 input end Gas fluid pressure force value of uranium tailings filler device using low pressure sensor 16, if test pressure value exceeds low pressure 16 range ability of sensor is then still tested uranium tailings using high pressure sensor 17 and is loaded in 17 range ability of high pressure sensor 19 input end Gas fluid pressure force value of device；
After D4, the pressure needed for 19 input end Gas fluid pressure force value of uranium tailings filler device reaches test, gas-liquid separator is opened 23 inlet end valves and the first check valve 26 and second one-way valve 28, gas-liquid saturated solution are injected into gas-liquid separator 23, gas-liquid point From device 23 to gas-liquid saturated solution carry out gas-liquid separation, gas from 23 gas outlet end of gas-liquid separator be discharged, by drier 24, Gas mass flow meter 25 and the first check valve 26 enter gas collection bag 27, and liquid is arranged from 23 liquid outlet end of gas-liquid separator Out, by second one-way valve 28 enter liquid storage container 29, with data output function balance 30 to the liquid in liquid storage container 29 into Row metering；
D5, data collector 32 acquire gas flow by gas mass flow meter 25, are adopted by data output function balance 30 Collect fluid flow, and automatically save and handle data, to obtain uranium tailings sample in different temperatures, different pressures, different gas Gas-liquid permeability in the case of flow quantity.
Embodiment three, using uranium tailings pond uranium tailings and lower sleeping rock-soil layer permeability test device test uranium tailings and lower sleeping The method of rock-soil layer permeability, the present embodiment is using sleeping rock-soil layer permeability under the measurement of single mixed gas and the infiltration of uranium tailings Rate, the specific steps of which are as follows:
A, the preparation before test
A1, ground sample aid device 18 and uranium tailings filler device 19 are removed from the exciting device 33 in test device, it will The standard-sized lower sleeping rock-soil layer sample obtained is packed into ground sample aid device 18, and uranium tailings is layered and is packed into uranium tailings In filler device 19, and uranium tailings is densified to uranium tailings volume density value in situ, ground sample is accommodated into device after filling 18 and uranium tailings filler device 19 reinstall on exciting device 33；
A2, log-on data collector 32 close all solenoid valves by the control of data collector 32, check pipeline air-tightness, and Ground sample is accommodated into 18 sample loading cylinder body length of device and 19 sample loading cylinder body length of uranium tailings filler device is input to data acquisition Device 32, and the temperature environment according to locating for test request simulation uranium tailings and ground sets 35 temperature of insulating box.
B, mixed gas needed for preparation test
It opens solenoid valve V1, solenoid valve V2 and booster pump 3 and inputs carbon dioxide and nitrogen, controlled by first gas mass flow Device 4 and second gas mass flow controller 5 adjust air inflow, adjust carbon dioxide in gas mixture and nitrogen according to test request The ratio of gas, then open solenoid valve V3, by 7 pairs of high-pressure pressure regulating valve inject mixed gas carry out first time pressure regulation, first Gas pressure value is fed back to data collector 32 by pressure real-time collector digital display meter 6, if required gas pressure when reaching test Value, then open solenoid valve V6, if required gas pressure value is not up to tested in first time pressure regulation, opens solenoid valve V4 and V5, the Gas pressure value is fed back to data collector 3 by two pressure real-time collector digital display meters 9, is injected by 8 Duis of low pressure regulating pressure valve Mixed gas carries out second of pressure regulation, required gas pressure value when reaching test.
C, solenoid valve V7 and solenoid valve V8 is opened, injects mixed gas, third gas quality stream to stirring intermediate receptacle 15 The data collector 32 that amount controller 10 feeds back to air inflow controls air inflow by data collector 32.
D, to the test of lower sleeping rock-soil layer sample gas permeability
D1, when mixed gas fill stirring intermediate receptacle 15 after, open stirring 15 gas-liquid saturated solution outlet end electromagnetism of intermediate receptacle Valve and solenoid valve V13, solenoid valve V15 inject mixed gas to ground sample aid device 18, and mixed gas enters ground sample After accommodating device 18, start exciting device 33, according to vibration environment locating for test request simulation ground；
D2, ground sample aid 18 confining pressure device input end solenoid valve of device is opened, is accommodated by ring pressure device 34 to ground sample 18 input pressure of device establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure reality When the pressure value that feeds back to of collector digital display meter 31 reach back pressure set by data collector 32 after, open solenoid valve V16, back Pressure valve 20, back pressure pump 21 apply reversed back pressure to test sample, and third pressure real-time collector digital display meter 22 is by reversed back pressure value Data collector 32 is fed back to, solenoid valve V11 is then opened, ground sample is first tested using high pressure sensor 17 and accommodates device 18 Input end gas pressure value opens electricity if test pressure value closes solenoid valve V11 in 16 range ability of low pressure sensor Magnet valve V10 tests ground sample using low pressure sensor 16 and accommodates 18 input end gas pressure value of device, if test pressure value is super 16 range ability of low pressure sensor out then still tests ground using high pressure sensor 17 in 17 range ability of high pressure sensor Sample accommodates 18 input end gas pressure value of device；
After D3, the pressure needed for ground sample aid 18 input end gas pressure value of device reaches test, gas-liquid separation is opened 23 inlet end valve of device and the first check valve 26, mixed gas are injected into gas-liquid separator 23, go out from 23 gas of gas-liquid separator The discharge of mouth end enters gas collection bag 27 by drier 24, gas mass flow meter 25 and the first check valve 26；
D4, data collector 32 acquire gas flow by gas mass flow meter 25, and automatically save and handle data, thus Obtain gas permeability of the lower sleeping rock-soil layer sample in different temperatures, different pressures and different gas flow.
E, to the test of uranium tailings body gas permeability
E1, solenoid valve V13, solenoid valve V15 and ground sample aid 18 confining pressure device input end solenoid valve of device are closed, excludes flow The gas of metering system；
E2, when mixed gas fill stirring intermediate receptacle 15 after, open stirring 15 gas-liquid saturated solution outlet end electromagnetism of intermediate receptacle Valve and solenoid valve V12, solenoid valve V14 inject mixed gas to uranium tailings filler device 19, and mixed gas enters the filling of uranium tailings After device 19, start exciting device 33, according to vibration environment locating for test request simulation ground；
E3,19 confining pressure device input end solenoid valve of uranium tailings filler device is opened, by ring pressure device 34 to uranium tailings filler device 19 input pressures establish confining pressure in test sample surrounding, prevent tested media along ground surrounding crossfire, when the 4th pressure is adopted in real time After the pressure value that storage digital display meter 31 is fed back to reaches back pressure set by data collector 32, solenoid valve V16, counterbalance valve are opened 20, back pressure pump 21 apply reversed back pressure to test sample, and third pressure real-time collector digital display meter 22 feeds back reversed back pressure value Data collector 32 is returned, solenoid valve V11 is then opened, 19 input end of uranium tailings filler device is first tested using high pressure sensor 17 Gas pressure value opens solenoid valve if test pressure value closes solenoid valve V11 in 16 range ability of low pressure sensor V10 tests 19 input end gas pressure value of uranium tailings filler device using low pressure sensor 16, if test pressure value exceeds low pressure 16 range ability of sensor is then still tested uranium tailings using high pressure sensor 17 and is loaded in 17 range ability of high pressure sensor 19 input end gas pressure value of device；
After E4, the pressure needed for 19 input end gas pressure value of uranium tailings filler device reaches test, gas-liquid separator is opened 23 inlet end valves and the first check valve 26, mixed gas are injected into gas-liquid separator 23, from 23 gas vent of gas-liquid separator End discharge enters gas collection bag 27 by drier 24, gas mass flow meter 25 and the first check valve 26；
E5, data collector 32 acquire gas flow by gas mass flow meter 25, and automatically save and handle data, thus Obtain gas permeability of the uranium tailings sample in different temperatures, different pressures and different gas flow.
Example IV, using uranium tailings pond uranium tailings and lower sleeping rock-soil layer permeability test device test uranium tailings and lower sleeping The method of rock-soil layer permeability, sleeping rock-soil layer permeability and uranium tailings permeability under the present embodiment is measured using single liquid, Specific step is as follows:
A, the preparation before test
A1, ground sample aid device 18 and uranium tailings filler device 19 are removed from the exciting device 33 in test device, it will The standard-sized lower sleeping rock-soil layer sample obtained is packed into ground sample aid device 18, and uranium tailings is layered and is packed into uranium tailings In filler device 19, and uranium tailings is densified to uranium tailings volume density value in situ, ground sample is accommodated into device after filling 18 and uranium tailings filler device 19 reinstall on exciting device 33；
A2, log-on data collector 32 close all solenoid valves by the control of data collector 32, check pipeline air-tightness, and Ground sample is accommodated into 18 sample loading cylinder body length of device and 19 sample loading cylinder body length of uranium tailings filler device is input to data acquisition Device 32, and the temperature environment according to locating for test request simulation uranium tailings and ground sets 35 temperature of insulating box.
B, accurate injection pump 12,13 input end solenoid valve of first piston intermediate receptacle and second piston intermediate receptacle 14 are opened Input end solenoid valve will be surveyed according to the constant flow rate and constant pressure of the test liquid injection set in data collector 32 Test solution body injects first piston intermediate receptacle 13 and second piston intermediate receptacle 14 from liquid storage container 11, and liquid to be tested fills the After one piston intermediate receptacle 13 and second piston intermediate receptacle 14,13 outlet end solenoid valve of first piston intermediate receptacle, the are opened Two piston intermediate receptacles, 14 outlet end solenoid valve and solenoid valve V12, solenoid valve V13, by test liquid injection ground sample aid Device 18 and uranium tailings filler device 19 close solenoid valve V12, solenoid valve V13, in first piston after its infiltration to after being saturated Between 14 input end solenoid valve of 13 input end solenoid valve of container and second piston intermediate receptacle.
C, to the test of lower sleeping rock-soil layer sample liquids permeability
C1,13 input end solenoid valve of first piston intermediate receptacle, 14 input end solenoid valve of second piston intermediate receptacle, electromagnetism are opened Valve V13, solenoid valve V15, liquid inject ground sample and accommodate device 18；
C2, ground sample aid 18 confining pressure device input end solenoid valve of device is opened, is accommodated by ring pressure device 34 to ground sample 18 input pressure of device establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure reality When the pressure value that feeds back to of collector digital display meter 31 reach back pressure set by data collector 32 after, open solenoid valve V16, back Pressure valve 20, back pressure pump 21 apply reversed back pressure to test sample, and third pressure real-time collector digital display meter 22 is by reversed back pressure value Data collector 32 is fed back to, solenoid valve V11 is then opened, ground sample is first tested using high pressure sensor 17 and accommodates device 18 Input end liquid pressure value opens electricity if test pressure value closes solenoid valve V11 in 16 range ability of low pressure sensor Magnet valve V10 tests ground sample using low pressure sensor 16 and accommodates 18 input end liquid pressure value of device, if test pressure value is super 16 range ability of low pressure sensor out then still tests ground using high pressure sensor 17 in 17 range ability of high pressure sensor Sample accommodates 18 input end liquid pressure value of device；
After C3, the pressure needed for ground sample aid 18 input end liquid pressure value of device reaches test, gas-liquid separation is opened 23 inlet end valve of device and second one-way valve 28, liquid are injected into gas-liquid separator 23, from 23 liquid outlet end of gas-liquid separator Discharge enters liquid storage container 29 by second one-way valve 28, with data output function balance 30 to the liquid in liquid storage container 29 It is measured；
C4, data collector 32 acquire fluid flow by data output function balance 30, and automatically save and handle data, from And obtain Test Liquid Permeability of Core of the uranium tailings sample in different temperatures, different pressures, different gas-liquid flows.
D, to the test of uranium tailings Test Liquid Permeability of Core
D1, solenoid valve V13, solenoid valve V15 and ground sample aid 18 confining pressure device input end solenoid valve of device are closed, excludes flow The liquid of metering system；
D2,13 input end solenoid valve of first piston intermediate receptacle, 14 input end solenoid valve of second piston intermediate receptacle, electromagnetism are opened Valve V12, solenoid valve V14, liquid inject uranium tailings filler device 19；
D3,19 confining pressure device input end solenoid valve of uranium tailings filler device is opened, by ring pressure device 34 to uranium tailings filler device 19 input pressures establish confining pressure in test sample surrounding, prevent tested media along ground surrounding crossfire, when the 4th pressure is adopted in real time After the pressure value that storage digital display meter 31 is fed back to reaches back pressure set by data collector 32, solenoid valve V16, counterbalance valve are opened 20, back pressure pump 21 apply reversed back pressure to test sample, and third pressure real-time collector digital display meter 22 feeds back reversed back pressure value Data collector 32 is returned, solenoid valve V11 is then opened, 19 input end of uranium tailings filler device is first tested using high pressure sensor 17 Liquid pressure value opens solenoid valve if test pressure value closes solenoid valve V11 in 16 range ability of low pressure sensor V10 tests 19 input end liquid pressure value of uranium tailings filler device using low pressure sensor 16, if test pressure value exceeds low pressure 16 range ability of sensor is then still tested uranium tailings using high pressure sensor 17 and is loaded in 17 range ability of high pressure sensor 19 input end liquid pressure value of device；
After D4, the pressure needed for 19 input end liquid pressure value of uranium tailings filler device reaches test, gas-liquid separator is opened 23 inlet end valves and second one-way valve 28, liquid are injected into gas-liquid separator 23, arrange from 23 liquid outlet end of gas-liquid separator Out, by second one-way valve 28 enter liquid storage container 29, with data output function balance 30 to the liquid in liquid storage container 29 into Row metering；
D5, data collector 32 acquire fluid flow by data output function balance 30, and automatically save and handle data, from And obtain Test Liquid Permeability of Core of the uranium tailings sample in different temperatures, different pressures, different gas-liquid flows.

Claims (6)

1. uranium tailings pond uranium tailings and lower sleeping rock-soil layer permeability test device, it is characterized in that: include gas pressure regulation injected system, Liquid pressure regulation injected system, pressure-measuring system, excitation system, back pressure system, flow measuring system, data collector and constant temperature Case；
The gas pressure regulation injected system includes carbon dioxide air accumulator, nitrogen air accumulator, booster pump, first gas quality stream Amount controller, second gas mass flow controller, third gas mass flow controller, first pressure real-time collector digital display Table, second pressure real-time collector digital display meter, high-pressure pressure regulating valve, low pressure regulating pressure valve and solenoid valve V1~V9；
Carbon dioxide air accumulator is connect by solenoid valve V1 with first gas mass flow controller inlet end, and nitrogen air accumulator is logical It crosses solenoid valve V2 to connect with second gas mass flow controller inlet end, booster pump is controlled with first gas mass flow respectively Device inlet end and the connection of second gas mass flow controller inlet end, first gas mass flow controller outlet side and second Gas mass flow controller outlet side is connect with solenoid valve V3 inlet end, the outlet side solenoid valve V3 and high-pressure pressure regulating valve inlet end Connection, high-pressure pressure regulating valve outlet side respectively with solenoid valve V4, solenoid valve V6 inlet end and first pressure real-time collector digital display meter Inlet end connection, the outlet side solenoid valve V4 connect with low pressure regulating pressure valve inlet end, low pressure regulating pressure valve outlet side and solenoid valve V5 into The connection of gas end, the outlet side solenoid valve V5 is acquired with the outlet side solenoid valve V6, solenoid valve V7 inlet end and second pressure in real time respectively The connection of device digital display meter inlet end, the outlet side solenoid valve V7 are connect with third gas mass flow controller inlet end, third gas Mass flow controller outlet side is connect with solenoid valve V8 and solenoid valve V9 inlet end, the outlet side solenoid valve V9 and ambient atmosphere, For row pressure and exhaust；
The liquid pressure regulation injected system includes liquid storage container, accurate injection pump, first piston intermediate receptacle and second piston Intermediate receptacle, liquid storage container are connect by pipeline with the input end of precision injection pump, and the outlet end of accurate injection pump is respectively with the The input end connection of one piston intermediate receptacle, second piston intermediate receptacle；
The pressure-measuring system includes gas-liquid stirring device, low pressure sensor, high pressure sensor, solenoid valve V10, solenoid valve V11, gas-liquid stirring device gas-liquid saturated solution outlet end are connect with solenoid valve V10, solenoid valve V11 input end, the outlet solenoid valve V10 End is connect with low pressure sensor input end, and the outlet end solenoid valve V11 is connect with high pressure sensor input end；
The excitation system includes ground sample aid device, uranium tailings filler device, exciting device, ring pressure device and electromagnetism Valve V12, solenoid valve V13, solenoid valve V14, solenoid valve V15, ground sample aid device and uranium tailings filler device are mounted on sharp On vibrating device, exciting device is capable of providing the vibration of different frequency, with vibration environment locating for simulation test uranium tailings and ground, rock Earth sample accommodate device confining pressure device input end solenoid valve and uranium tailings filler device confining pressure device input end solenoid valve respectively with ring pressure Device connection, the outlet end solenoid valve V12 are connect with uranium tailings filler device input end, the outlet end solenoid valve V13 and ground sample The connection of device input end is accommodated, solenoid valve V14 input end is connect with uranium tailings filler device outlet end, solenoid valve V15 input end It is connect with ground sample aid device outlet end；
The back pressure system includes counterbalance valve, back pressure pump, third pressure real-time collector digital display meter and solenoid valve V16, back pressure The outlet end of pump is connect with the input end of the input end of third pressure real-time collector digital display meter and solenoid valve V16 respectively, electromagnetism The outlet end of valve V16 and the second input end of counterbalance valve connect；
The flow measuring system includes gas-liquid separator, drier, gas mass flow meter, the first check valve, gas receipts Collect bag, second one-way valve, liquid storage container, band data output function balance and the 4th pressure real-time collector digital display meter, the 4th pressure Power real-time collector digital display meter outlet end is connect with gas-liquid separator input end, gas-liquid separator gas outlet end and drier into The connection of mouth end, dryer export end are connect with gas mass flow meter input end, and gas mass flow meter outlet end is single with first It is connected to valve input end, the first one-way valved outlet end is connect with gas collection bag, and gas-liquid separator liquid outlet end is single with second It is connected to valve input end, second one-way valve outlet end is connect with liquid storage container input end, and liquid storage container is placed on band data and exports On function balance；
First piston intermediate receptacle, second piston intermediate receptacle, gas-liquid stirring device, low pressure sensor, high pressure sensor, ground Sample accommodates device, uranium tailings filler device, exciting device and solenoid valve V10, solenoid valve V11, solenoid valve V12, solenoid valve V13, solenoid valve V14, solenoid valve V15 are mounted in insulating box, and insulating box realizes that solid-liquid-gas three-phase is surveyed using heating or refrigeration The temperature regulation of medium is tried, and by detecting element to the feedback of Current Temperatures, voluntarily carries out temperature control, it is ensured that test is in institute It is carried out under the conditions of the temperature needed；
The connection relationship of above-mentioned each system is as follows:
The outlet end of solenoid valve V8 is connect with gas-liquid stirring device gas inlet end, the outlet end of accurate injection pump and gas-liquid agitation The connection of device liquid feeding end solenoid valve, the outlet end and gas-liquid stirring device of first piston intermediate receptacle and second piston intermediate receptacle The input end connection of gas-liquid saturated solution outlet end solenoid valve and solenoid valve V12, solenoid valve V13, solenoid valve V14 and solenoid valve V15 Outlet end with connect respectively with the first input end of counterbalance valve, counterbalance valve outlet end and the 4th pressure real-time collector digital display meter import End connection；
Data collector signal end a1 is connect by signal wire with gas mass flow meter signal end, and a2 passes through signal wire and the 4th The connection of pressure real-time collector digital display meter signal end, a3 are connect by signal wire with exciting device signal end, and a4 passes through signal wire It is connect with ring pressure device signal end, a5 is connect by signal wire with high pressure sensor signal end, and a6 is passed by signal wire and low pressure The connection of sensor signal end, a7 are connect by signal wire with third pressure real-time collector digital display meter signal end, and a8 passes through signal wire It is connect with third gas mass flow controller signal end, a9 passes through signal wire and second pressure real-time collector digital display meter signal End connection, a10 are connect by signal wire with first pressure real-time collector digital display meter signal end, and a11 passes through signal wire and second The connection of gas mass flow controller signal end, a12 are connect by signal wire with accurate injection pump signal end, and a13 passes through signal Line is connect with first gas mass flow controller signal end, and a14 is connect by signal wire with insulating box signal end, and a15 passes through Signal wire is connect with data output function balance signal end；
Solenoid valve in booster pump, high-pressure pressure regulating valve, low pressure regulating pressure valve, back pressure pump and test device all pass through electrical control lines respectively with Data collector is connected, and controls its open and close by data collector.
2. uranium tailings pond uranium tailings as described in claim 1 and lower sleeping rock-soil layer permeability test device, it is characterized in that: described Data collector include converter, signal reformer plate, computer data acquiring and peripheral circuit, Data Acquisition Card, industry Computer, application software, gas and liquid phase measuring software are controlled, data collector is for acquiring pressure, flow, temperature real time data And the signal of electric elements is controlled, and is voluntarily deposited according to the data obtained progress computing permeability and Drawing of Curve, acquired results Storage is in systems；
The data collector Test Liquid Permeability of Core calculating meets following formula:
(1)
In formula (1): K1Indicate Test Liquid Permeability of Core, unit 10-3μm2；μ1Indicate liquid viscosity, unit mpas；L indicates rock Earth sample accommodates device sample loading cylinder body length and uranium tailings filler device sample loading cylinder body length, unit cm；Q indicates liquid flow Amount, unit ml/s；A indicates ground sample aid device sample loading cylinder intracoelomic cavity area of section and uranium tailings filler device sample loading cylinder Intracoelomic cavity area of section, unit cm2；△ P indicates ground sample aid device and uranium tailings filler device both ends pressure difference, unit For MPa；
The data collector gas permeability calculating meets following formula:
(2)
In formula (2): Q0Indicate gas flow under atmospheric pressure, unit ml/min；P0Indicate atmospheric pressure, unit Kpa；μ2It indicates Gas viscosity, unit mpas；P1It indicates ground sample aid device and uranium tailings filler device inlet pressure, unit is Kpa；K2Indicate gas permeability, unit 10-3μm2；
The flow Q that gas mass flow measures1For the gas flow of 1 normal atmosphere pressure, when measurement, will carry out school to it Just, correction meets following formula,
(3)
In formula (3): T indicates environment temperature when test.
3. uranium tailings pond uranium tailings as claimed in claim 1 or 2 and lower sleeping rock-soil layer permeability test device, it is characterized in that: The gas pressure regulation injected system is used to provide the test gas of different pressures to test device, to guarantee regulation precision, is Using the high-pressure pressure regulating valve and low pressure regulating pressure valve of different range of regulation, when test selected system as needed, high-pressure pressure regulating valve Inlet pressure is less than 32MPa, and for outlet pressure in 0~20MPa and adjustable, low pressure regulating pressure valve inlet pressure is less than 0.2MPa, outlet Pressure tests air inflow in 0~0.1MPa and adjustable, for control, and the flow-control scope of gas mass flow controller is 0~ 5000sccm, measurement accuracy ± 1%；
The accurate injection pump is for adjusting and constant inlet hydraulic and feed liquor flow, maximum pressure 20MPa；
The low pressure sensor and high pressure sensor uses precision for 0.1% pressure sensor, loads for measuring uranium tailings The pressure of device and ground sample aid device import tested media, high pressure sensor pressure transmitter range 25MPa；Low pressure passes Sensor pressure transmitter range 1MPa, the size of view pressure uses when test, it is ensured that system accuracy and stability；
The ring pressure device is made of manual pump and ring pressure table, accommodates device for ground sample and uranium tailings filler device is enclosed The foundation of pressure prevents tested media along ground surrounding crossfire；
The back pressure system is used to provide reversed back pressure to uranium tailings filler device and ground sample aid device, provides most High pressure is 20Mpa, and control precision is 0.1MPa；
For measuring the gas flow of gas in normal conditions, operating pressure is no more than the gas mass flow meter 10MPa, test scope are 0~300sccm.
4. using the method for sleeping rock-soil layer permeability and uranium tailings permeability under test device as claimed in claim 3 test, It is characterized in that: sleeping rock-soil layer permeability and uranium tailings permeability are measured down using gas-liquid mixed, the specific steps of which are as follows:
A, the preparation before test
A1, ground sample aid device and uranium tailings filler device are removed from the exciting device in test device, by acquirement Standard-sized lower sleeping rock-soil layer sample is packed into ground sample aid device, and uranium tailings is layered and is packed into uranium tailings filler device It is interior, and uranium tailings is densified to uranium tailings volume density value in situ, ground sample is accommodated into device after filling and uranium tailings is filled out Assembling device reinstalls on exciting device；
A2, log-on data collector close all solenoid valves by data collector control, check pipeline air-tightness, and by rock Earth sample aid device sample loading cylinder body length and uranium tailings filler device sample loading cylinder body length are input to data collector, and according to Test request simulates temperature environment locating for uranium tailings and ground and sets calorstat temperature；
B, gas-liquid saturated solution needed for preparation test
B1, accurate injection pump, first piston intermediate receptacle input end solenoid valve and second piston intermediate receptacle input end electricity are opened Magnet valve will test liquid from storage according to the constant flow rate and constant pressure of the test liquid injection set in data collector Liquid container injects first piston intermediate receptacle and second piston intermediate receptacle, liquid to be tested fill first piston intermediate receptacle and After second piston intermediate receptacle, first piston intermediate receptacle outlet end solenoid valve, second piston intermediate receptacle outlet end electricity are opened Magnet valve and solenoid valve V12, solenoid valve V13, by test liquid injection ground sample aid device and uranium tailings filler device, to it Infiltration is closed in solenoid valve V12, solenoid valve V13, first piston intermediate receptacle input end solenoid valve and second piston to after being saturated Between vessel inlet end solenoid valve；
B2, solenoid valve V1, solenoid valve V2 and booster pump input carbon dioxide and nitrogen are opened, passes through first gas mass flow control Device processed and second gas mass flow controller adjust air inflow, adjust carbon dioxide in gas mixture and nitrogen according to test request Then the ratio of gas opens solenoid valve V3, carry out first time pressure regulation, the first pressure by mixed gas of the high-pressure pressure regulating valve to injection Gas pressure value is fed back to data collector by power real-time collector digital display meter, if required gas pressure value when reaching test, Solenoid valve V6 is opened, if required gas pressure value is not up to tested in first time pressure regulation, opens solenoid valve V4 and V5, second pressure Gas pressure value is fed back to data collector by real-time collector digital display meter, by low pressure regulating pressure valve to the mixed gas of injection into Second of pressure regulation of row, required gas pressure value when reaching test；
B3, stirring intermediate receptacle liquid feeding end solenoid valve is opened, test liquid is injected into stirring intermediate receptacle from liquid storage container, it is to be measured After test solution body fills stirring intermediate receptacle, opens solenoid valve V7, solenoid valve V8 and inject mixed gas, third gas mass flow control The data collector that device processed feeds back to air inflow, controls air inflow by data collector, then opens stirring intermediate receptacle Speed-regulating switch sets mixing speed, gas-liquid saturated solution needed for test is obtained after stirring；
C, to the test of lower sleeping rock-soil layer sample gas-liquid permeability
C1, stirring intermediate receptacle gas-liquid saturated solution outlet end solenoid valve and solenoid valve V13, solenoid valve V15 are opened, to ground sample It accommodates device and injects gas-liquid saturated solution, after gas-liquid saturated solution enters ground sample aid device, starting exciting device, according to test It is required that vibration environment locating for simulation ground；
C2, ground sample aid device confining pressure device input end solenoid valve is opened, device is accommodated to ground sample by ring pressure device Input pressure establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure acquires in real time After the pressure value that device digital display meter is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure are opened Pump applies reversed back pressure to test sample, and reversed back pressure value is fed back to data and acquired by third pressure real-time collector digital display meter Then device opens solenoid valve V11, first accommodate device input end Gas fluid pressure force value using high pressure sensor test ground sample, if Pressure value is tested in low pressure sensor range ability, then closes solenoid valve V11, solenoid valve V10 is opened, using low pressure sensor It tests ground sample and accommodates device input end Gas fluid pressure force value, if test pressure value exceeds low pressure sensor range ability, in height In pressure sensor range ability, then device input end Gas fluid pressure force value is still accommodated using high pressure sensor test ground sample；
After C3, the pressure needed for ground sample aid device input end Gas fluid pressure force value reaches test, gas-liquid separator is opened Inlet end valve and the first check valve and second one-way valve, gas-liquid saturated solution are injected into gas-liquid separator, and gas-liquid separator is to gas Liquid saturated solution carries out gas-liquid separation, and gas is discharged from gas-liquid separator gas outlet end, by drier, gas mass flow meter And first check valve enter gas collection bag, liquid is discharged from gas-liquid separator liquid outlet end, is entered by second one-way valve Liquid storage container measures the liquid in liquid storage container with data output function balance；
C4, data collector acquire gas flow by gas mass flow meter, acquire liquid by data output function balance Flow, and data are automatically saved and handle, to obtain lower sleeping rock-soil layer sample in different temperatures, different pressures, different gas-liquids Gas-liquid permeability under traffic conditions；
D, to the test of uranium tailings body gas-liquid permeability
D1, close solenoid valve V13, solenoid valve V15 and and ground sample accommodate device confining pressure device input end solenoid valve, exclude flow Gas and liquid in metering system；
D2, stirring intermediate receptacle gas-liquid saturated solution outlet end solenoid valve and solenoid valve V12, solenoid valve V14 are opened, is filled out to uranium tailings Assembling device injects gas-liquid saturated solution, after gas-liquid saturated solution enters uranium tailings filler device, starts exciting device, according to test request Simulate vibration environment locating for uranium tailings；
D3, uranium tailings filler device confining pressure device input end solenoid valve is opened, is inputted by ring pressure device to uranium tailings filler device Pressure establishes confining pressure in test sample surrounding, prevents tested media along uranium tailings surrounding crossfire, when the 4th pressure real-time collector After the pressure value that digital display meter is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure pump are opened, Applying reversed back pressure to test sample, reversed back pressure value is fed back to data collector by third pressure real-time collector digital display meter, Then solenoid valve V11 is opened, uranium tailings filler device input end Gas fluid pressure force value is first tested using high pressure sensor, if test pressure Force value then closes solenoid valve V11 in low pressure sensor range ability, opens solenoid valve V10, tests uranium using low pressure sensor Tailings filler device input end Gas fluid pressure force value, if test pressure value exceeds low pressure sensor range ability, in high pressure sensor In range ability, then uranium tailings filler device input end Gas fluid pressure force value is still tested using high pressure sensor；
D4, when uranium tailings filler device input end Gas fluid pressure force value reach test needed for pressure after, open gas-liquid separator into Gas end valve door and the first check valve and second one-way valve, gas-liquid saturated solution are injected into gas-liquid separator, and gas-liquid separator is to gas-liquid Saturated solution carry out gas-liquid separation, gas from gas-liquid separator gas outlet end be discharged, by drier, gas mass flow meter and First check valve enters gas collection bag, and liquid is discharged from gas-liquid separator liquid outlet end, enters storage by second one-way valve Liquid container measures the liquid in liquid storage container with data output function balance；
D5, data collector acquire gas flow by gas mass flow meter, acquire liquid by data output function balance Flow, and data are automatically saved and handle, to obtain uranium tailings sample in different temperatures, different pressures, different gas-liquid flows In the case of gas-liquid permeability.
5. using the method for sleeping rock-soil layer permeability and uranium tailings permeability under test device as claimed in claim 3 test, It is characterized in that: using sleeping rock-soil layer permeability and uranium tailings permeability under the measurement of single mixed gas, the specific steps of which are as follows:
A, the preparation before test
A1, ground sample aid device and uranium tailings filler device are removed from the exciting device in test device, by acquirement Standard-sized lower sleeping rock-soil layer sample is packed into ground sample aid device, and uranium tailings is layered and is packed into uranium tailings filler device It is interior, and uranium tailings is densified to uranium tailings volume density value in situ, ground sample is accommodated into device after filling and uranium tailings is filled out Assembling device reinstalls on exciting device；
A2, log-on data collector close all solenoid valves by data collector control, check pipeline air-tightness, and by rock Earth sample aid device sample loading cylinder body length and uranium tailings filler device sample loading cylinder body length are input to data collector, and according to Test request simulates temperature environment locating for uranium tailings and ground and sets calorstat temperature；
B, mixed gas needed for preparation test
Solenoid valve V1, solenoid valve V2 and booster pump input carbon dioxide and nitrogen are opened, is controlled by first gas mass flow Device and second gas mass flow controller adjust air inflow, adjust carbon dioxide in gas mixture and nitrogen according to test request Ratio, then open solenoid valve V3, first time pressure regulation, first pressure carried out to the mixed gas of injection by high-pressure pressure regulating valve Gas pressure value is fed back to data collector by real-time collector digital display meter, if required gas pressure value when reaching test, beats Open electromagnetic valve V6 opens solenoid valve V4 and V5 if required gas pressure value is not up to tested in first time pressure regulation, and second pressure is real When collector digital display meter gas pressure value fed back into data collector, carried out by mixed gas of the low pressure regulating pressure valve to injection Second of pressure regulation, required gas pressure value when reaching test；
C, solenoid valve V7 and solenoid valve V8 is opened, injects mixed gas, the control of third gas mass flow to stirring intermediate receptacle The data collector that device feeds back to air inflow controls air inflow by data collector；
D, to the test of lower sleeping rock-soil layer sample gas permeability
D1, when mixed gas fill stirring intermediate receptacle after, open stirring intermediate receptacle gas-liquid saturated solution outlet end solenoid valve and Solenoid valve V13, solenoid valve V15 inject mixed gas to ground sample aid device, and mixed gas enters ground sample aid dress It postpones, starts exciting device, according to vibration environment locating for test request simulation ground；
D2, ground sample aid device confining pressure device input end solenoid valve is opened, device is accommodated to ground sample by ring pressure device Input pressure establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure acquires in real time After the pressure value that device digital display meter is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure are opened Pump applies reversed back pressure to test sample, and reversed back pressure value is fed back to data and acquired by third pressure real-time collector digital display meter Then device opens solenoid valve V11, first accommodate device input end gas pressure value using high pressure sensor test ground sample, if Pressure value is tested in low pressure sensor range ability, then closes solenoid valve V11, solenoid valve V10 is opened, using low pressure sensor It tests ground sample and accommodates device input end gas pressure value, if test pressure value exceeds low pressure sensor range ability, in height In pressure sensor range ability, then device input end gas pressure value is still accommodated using high pressure sensor test ground sample；
After D3, the pressure needed for ground sample aid device input end gas pressure value reaches test, gas-liquid separator is opened Inlet end valve and the first check valve, mixed gas are injected into gas-liquid separator, are discharged from gas-liquid separator gas outlet end, warp It crosses drier, gas mass flow meter and the first check valve and enters gas collection bag；
D4, data collector acquire gas flow by gas mass flow meter, and automatically save and handle data, to obtain Gas permeability of the sleeping rock-soil layer sample in different temperatures, different pressures and different gas flow down；
E, to the test of uranium tailings body gas permeability
E1, solenoid valve V13, solenoid valve V15 and ground sample aid device confining pressure device input end solenoid valve are closed, excludes flowmeter The gas of amount system；
E2, when mixed gas fill stirring intermediate receptacle after, open stirring intermediate receptacle gas-liquid saturated solution outlet end solenoid valve and Solenoid valve V12, solenoid valve V14 inject mixed gas to uranium tailings filler device, and mixed gas enters uranium tailings filler device Afterwards, start exciting device, according to vibration environment locating for test request simulation ground；
E3, uranium tailings filler device confining pressure device input end solenoid valve is opened, is inputted by ring pressure device to uranium tailings filler device Pressure establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure real-time collector number After the pressure value that aobvious table is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure pump are opened, to Test sample applies reversed back pressure, and reversed back pressure value is fed back to data collector by third pressure real-time collector digital display meter, so Solenoid valve V11 is opened afterwards, uranium tailings filler device input end gas pressure value is first tested using high pressure sensor, if test pressure Value then closes solenoid valve V11 in low pressure sensor range ability, opens solenoid valve V10, tests uranium tail using low pressure sensor Sand filler device input end gas pressure value, if test pressure value exceeds low pressure sensor range ability, in high pressure sensor amount Within the scope of journey, then uranium tailings filler device input end gas pressure value is still tested using high pressure sensor；
E4, when uranium tailings filler device input end gas pressure value reach test needed for pressure after, open gas-liquid separator into Gas end valve door and the first check valve, mixed gas are injected into gas-liquid separator, are discharged from gas-liquid separator gas outlet end, pass through Drier, gas mass flow meter and the first check valve enter gas collection bag；
E5, data collector acquire gas flow by gas mass flow meter, and automatically save and handle data, to obtain Gas permeability of the uranium tailings sample in different temperatures, different pressures and different gas flow.
6. using the method for sleeping rock-soil layer permeability and uranium tailings permeability under test device as claimed in claim 3 test, It is characterized in that: using rock-soil layer permeability and the uranium tailings permeability of crouching under single liquid gasmetry, the specific steps of which are as follows:
A, the preparation before test
A1, ground sample aid device and uranium tailings filler device are removed from the exciting device in test device, by acquirement Standard-sized lower sleeping rock-soil layer sample is packed into ground sample aid device, and uranium tailings is layered and is packed into uranium tailings filler device It is interior, and uranium tailings is densified to uranium tailings volume density value in situ, ground sample is accommodated into device after filling and uranium tailings is filled out Assembling device reinstalls on exciting device；
A2, log-on data collector close all solenoid valves by data collector control, check pipeline air-tightness, and by rock Earth sample aid device sample loading cylinder body length and uranium tailings filler device sample loading cylinder body length are input to data collector, and according to Test request simulates temperature environment locating for uranium tailings and ground and sets calorstat temperature；
B, accurate injection pump, first piston intermediate receptacle input end solenoid valve and second piston intermediate receptacle input end electromagnetism are opened Valve will test liquid from liquid storage according to the constant flow rate and constant pressure of the test liquid injection set in data collector Container injects first piston intermediate receptacle and second piston intermediate receptacle, and liquid to be tested fills first piston intermediate receptacle and the After two piston intermediate receptacles, first piston intermediate receptacle outlet end solenoid valve, second piston intermediate receptacle outlet end electromagnetism are opened Valve and solenoid valve V12, solenoid valve V13, by test liquid injection ground sample aid device and uranium tailings filler device, to its leaching Profit is closed among solenoid valve V12, solenoid valve V13, first piston intermediate receptacle input end solenoid valve and second piston to after being saturated Vessel inlet end solenoid valve；
C, to the test of lower sleeping rock-soil layer sample liquids permeability
C1, first piston intermediate receptacle input end solenoid valve, second piston intermediate receptacle input end solenoid valve, solenoid valve are opened V13, solenoid valve V15, liquid inject ground sample and accommodate device；
C2, ground sample aid device confining pressure device input end solenoid valve is opened, device is accommodated to ground sample by ring pressure device Input pressure establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure acquires in real time After the pressure value that device digital display meter is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure are opened Pump applies reversed back pressure to test sample, and reversed back pressure value is fed back to data and acquired by third pressure real-time collector digital display meter Then device opens solenoid valve V11, first accommodate device input end liquid pressure value using high pressure sensor test ground sample, if Pressure value is tested in low pressure sensor range ability, then closes solenoid valve V11, solenoid valve V10 is opened, using low pressure sensor It tests ground sample and accommodates device input end liquid pressure value, if test pressure value exceeds low pressure sensor range ability, in height In pressure sensor range ability, then device input end liquid pressure value is still accommodated using high pressure sensor test ground sample；
After C3, the pressure needed for ground sample aid device input end liquid pressure value reaches test, gas-liquid separator is opened Inlet end valve and second one-way valve, liquid are injected into gas-liquid separator, are discharged from gas-liquid separator liquid outlet end, by the Two check valves enter liquid storage container, measure with data output function balance to the liquid in liquid storage container；
C4, data collector acquire fluid flow by data output function balance, and automatically save and handle data, thus To Test Liquid Permeability of Core of the uranium tailings sample in different temperatures, different pressures, different gas-liquid flows；
D, to the test of uranium tailings Test Liquid Permeability of Core
D1, solenoid valve V13, solenoid valve V15 and ground sample aid device confining pressure device input end solenoid valve are closed, excludes flowmeter The liquid of amount system；
D2, first piston intermediate receptacle input end solenoid valve, second piston intermediate receptacle input end solenoid valve, solenoid valve are opened V12, solenoid valve V14, liquid inject uranium tailings filler device；
D3, uranium tailings filler device confining pressure device input end solenoid valve is opened, is inputted by ring pressure device to uranium tailings filler device Pressure establishes confining pressure in test sample surrounding, prevents tested media along ground surrounding crossfire, when the 4th pressure real-time collector number After the pressure value that aobvious table is fed back to reaches back pressure set by data collector, solenoid valve V16, counterbalance valve, back pressure pump are opened, to Test sample applies reversed back pressure, and reversed back pressure value is fed back to data collector by third pressure real-time collector digital display meter, so Solenoid valve V11 is opened afterwards, uranium tailings filler device input end liquid pressure value is first tested using high pressure sensor, if test pressure Value then closes solenoid valve V11 in low pressure sensor range ability, opens solenoid valve V10, tests uranium tail using low pressure sensor Sand filler device input end liquid pressure value, if test pressure value exceeds low pressure sensor range ability, in high pressure sensor amount Within the scope of journey, then uranium tailings filler device input end liquid pressure value is still tested using high pressure sensor；
D4, when uranium tailings filler device input end liquid pressure value reach test needed for pressure after, open gas-liquid separator into Gas end valve door and second one-way valve, liquid are injected into gas-liquid separator, are discharged from gas-liquid separator liquid outlet end, pass through second Check valve enters liquid storage container, measures with data output function balance to the liquid in liquid storage container；
D5, data collector acquire fluid flow by data output function balance, and automatically save and handle data, thus To Test Liquid Permeability of Core of the uranium tailings sample in different temperatures, different pressures, different gas-liquid flows.
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CN114136863A (en) * 2021-12-15 2022-03-04 石家庄铁道大学 Sandstone uranium ore permeability testing device
CN114689805A (en) * 2022-04-15 2022-07-01 西南石油大学 Non-bonding flexible pipe annular space detection and exhaust monitoring device

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