Electro-osmosis drainage test device

Abstract

The invention provides an electroosmosis drainage test device, and belongs to the technical field of test devices. The device comprises a bearing bracket, a test box, a displacement measuring system and a control box, the control box comprises a current and voltage data acquisition module used for acquiring current and voltage information of an object to be tested and displaying the current and voltage information on a control panel through a current-voltage data display module; the gravity data acquisition module is used for measuring the gravity data of the electro-osmosis displacement of the to-be-tested article through a displacement measurement system and displaying the gravity data on the control panel through the gravity data display module; and the image display module is used for drawing a curve of current, voltage and displacement changing along with time under a constant voltage or constant current condition according to the collected current, voltage and gravity data. According to the invention, the data recording process is completely automatic, and the data recording can be completed without manual operation in the test process. And the influence of time difference of manual recording on a test result is reduced. And the test process can be known through the output curve.

Description

Technical Field

[0001] The invention relates to the technical field of test devices, and in particular to an electroosmosis drainage test device. Background Art

[0002] The treatment of tailings is a difficult problem that must be faced after mining. The commonly used method now is to build a reservoir for wet drainage. However, the water contained in the wet tailings reservoir can easily lead to dam failure, and the tailings reservoir has a large potential energy. Once a failure occurs, it will inevitably cause serious economic losses and casualties. People are eager to find a method to remove water from tailings and improve the safety of tailings reservoirs.

[0003] The existing drainage consolidation method can only rely on gravity to drain the free water, and after a certain amount of water is drained, the gravity drainage effect weakens, and the later drainage effect is poor, which cannot meet the safety needs. The electroosmosis drainage consolidation method has begun to come into people's sight. It applies a DC electric field to the tailings sand to make the water molecules move from the anode to the cathode. Due to the discharge of water, the soil body creates gaps, compresses and settles, and the shear strength is enhanced to achieve a reinforcement effect.

[0004] Electroosmosis drainage can discharge free water and a large amount of bound water in tailings. The drainage effect is significant and continuous. It has become an engineering hotspot in recent years, and seeking the best electroosmosis conditions has also become the research object of many scholars. The existing indoor electroosmosis test equipment is too cumbersome, the equipment is scattered and difficult to coordinate, it occupies a large area, and a lot of data needs to be recorded. It is difficult for one person to operate, and it is easy to cause human errors in the process of manual data recording, affecting the accuracy of the test. Providing an electroosmosis drainage device with simple procedures, easy operation and accurate results has become an urgent problem to be solved. Summary of the invention

[0005] In view of this, in order to solve the technical problems that the existing indoor electroosmosis test needs to record a lot of data, is difficult for a single person to operate, and is prone to human errors in the process of manual data recording, which affects the accuracy of the test. The present invention provides an electroosmosis drainage test device, which collects current and voltage information through the current and voltage data acquisition module in the control box, and collects gravity data through the gravity data acquisition module, and displays it on the control panel; the image display module draws a curve of the current, voltage and drainage volume changing with time based on the current, voltage and gravity data. The present invention fully automates the data recording process, and data recording can be completed without manual operation during the test process. Reduce the impact of time differences in manual recording on the test results. The test progress can also be understood through the output curve.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An electroosmotic drainage test device, comprising:

[0008] load-bearing bracket;

[0009] A test box, which is arranged on the load-bearing bracket, has electrodes arranged therein, and the interior of the box is used to contain the items to be tested;

[0010] A displacement measurement system is arranged on the load-bearing bracket;

[0011] A control box is arranged on the load-bearing bracket;

[0012] The control box includes a control panel, a current and voltage data acquisition module, a gravity data acquisition module, a current-voltage data display module, a gravity data display module and an image display module;

[0013] The current and voltage data acquisition module is used to collect the current and voltage information of the test object and display it on the control panel through the current-voltage data display module;

[0014] The gravity data acquisition module measures the gravity data of the electroosmotic displacement of the test article through the displacement measurement system, and displays it on the control panel through the gravity data display module;

[0015] The image display module is used to draw a curve showing the change of current, voltage and water discharge over time under constant voltage or constant current conditions according to the collected current, voltage and gravity data.

[0016] Preferably, the water displacement measurement system comprises:

[0017] A gravity collection module, used to collect gravity data of the electroosmotic displacement of the test article in the test box;

[0018] The data collector is connected to the gravity collection module and the gravity data display module respectively, and is used to record the gravity data collected by the gravity collection module.

[0019] Preferably, a volume regulating device for adjusting the volume of the test box is provided in the test box.

[0020] Preferably, the volume adjustment device comprises:

[0021] A baffle, which is located in the test box;

[0022] A driving device is used to drive the baffle plate to adjust the volume of the test box by changing the position of the baffle plate in the box body.

[0023] Preferably, the driving device comprises:

[0024] A power device, an output end of which is connected to a gear;

[0025] A transmission rod has one end connected to the baffle and the other end meshed with the gear.

[0026] Preferably, it also includes:

[0027] A brake is used to lock the position of the baffle in the box.

[0028] Preferably, it also includes:

[0029] A slideway, which is arranged on the load-bearing bracket;

[0030] A trolley is disposed on the slideway and is capable of moving on the slideway;

[0031] The test box is arranged on the trolley.

[0032] Preferably, a limit lock for locking the trolley is provided at the end of the slideway.

[0033] Preferably, the current and voltage data acquisition module is connected to a potential measuring needle disposed in the test object via a wire.

[0034] Preferably, it also includes:

[0035] A DC regulated power supply is arranged in the control box and is used to adjust the voltage and current of the electrode.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The electroosmosis drainage test device provided by the present invention collects current and voltage information through the current and voltage data acquisition module in the control box, and displays it on the control panel through the current-voltage data display module. The gravity data acquisition module collects gravity data and displays it on the control panel through the gravity data display module; the image display module draws a curve of the change of current, voltage and drainage over time under constant voltage or constant current conditions based on the current, voltage and gravity data. The present invention fully automates the data recording process, and data recording can be completed without manual operation during the test process. Reduce the impact of time differences in manual recording on the test results. The test progress can also be understood through the output curve.

[0038] The installation procedure of the present invention is simple and occupies a small area. The wires connecting the electrodes to the power supply and the current and voltage data acquisition modules are all plug-in connected, and the corrosion of the wires caused by multiple tests is fully considered. The device and method for collecting and recording data are convenient and accurate, and the test progress can be understood through the data curve. The present invention is suitable for indoor electroosmosis drainage tests with different filler volumes, and can explore the electroosmosis scheme that makes the electroosmosis effect most significant.

[0039] The test box of the present invention can be dragged out of the test area by a slide and a trolley, which is convenient for adding materials in the preparation stage and cleaning after the test. The volume of the test box can be adjusted by a volume adjustment device, and is suitable for tests of different scales. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 It is the structural diagram of the test box;

[0042] In the figure, 1. load-bearing bracket; 2. slide; 3. trolley; 4. test box; 5. operation panel; 6. DC regulated power supply; 7. current and voltage data acquisition module; 8. iron clamp; 9. limit lock; 10. gravity acquisition module; 11. data acquisition instrument; 12. sealing cover; 13. rubber ring; 14. transmission rod; 15. gear; 16. baffle; 17. housing; 18. brake. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] like Figure 1-2 As shown, the present invention provides an electroosmosis drainage test device, comprising:

[0047] The load-bearing bracket 1 mainly plays a supporting role;

[0048] The test box 4 is arranged on the load-bearing support 1, and an electrode is arranged therein. The interior of the box is used to contain the test object. The test box 4 preferably includes a box body with an upper opening made of tempered glass and a sealing cover 12 for covering the box body. A drainage port is left at the bottom of the box body, and a filter screen is preferably covered on the drainage port. A rubber ring 13 is embedded around the sealing cover 12, and a wire routing notch is left on the rubber ring 13.

[0049] The drainage measurement system is arranged on the load-bearing support 1 and is used to collect the electroosmotic drainage and measure the gravity data of the drainage.

[0050] The control box is arranged on the load-bearing bracket 1 and serves as the control part of the whole device, so that the present invention has the functions of fully automatic recording, collecting, measuring and storing data.

[0051] The control box includes a control panel, a current and voltage data acquisition module 7, a gravity data acquisition module, a current-voltage data display module, a gravity data display module and an image display module.

[0052] The current and voltage data acquisition module 7 is used to collect the current and voltage information of the test object and display it on the control panel through the current-voltage data display module.

[0053] The gravity data acquisition module measures the gravity data of the electroosmotic displacement of the test article through the displacement measurement system, and displays it on the control panel through the gravity data display module.

[0054] The image display module is used to draw a curve showing the change of current, voltage and water discharge over time under constant voltage or constant current conditions according to the collected current, voltage and gravity data.

[0055] In the electroosmosis drainage test device provided by the present invention, the current, voltage and gravity data are preferably displayed through a display screen on the control panel.

[0056] In the present invention, the displacement measurement system comprises:

[0057] The gravity collection module 10 is used to collect gravity data of the electroosmotic displacement of the test article in the test box 4; preferably, the conical bottle on the gravity collection module 10 is aligned with the drainage port on the test box 4 or the trolley 3 or slide 2 described below, so as to collect the electroosmotic displacement and convert it into gravity data.

[0058] The data acquisition instrument 11 is connected to the gravity acquisition module 10 and the gravity data display module, respectively, and is used to record the gravity data collected by the gravity acquisition module 10 and display it on the control panel through the gravity data display module. The data acquisition instrument 11 can record the gravity data of the electroosmotic drainage volume at a set time and has a data storage function. The gravity acquisition module 10 and the data acquisition instrument 11 are connected by wires.

[0059] In the present invention, a volume regulating device for regulating the volume of the test box 4 is provided in the test box 4 .

[0060] like Figure 2 As shown, an embodiment of a volume regulating device is provided. In the present invention, the volume regulating device comprises:

[0061] The baffle 16 is located in the box body of the test box 4. Preferably, there are two baffles 16 located at two sides of the box body of the test box 4 respectively.

[0062] A driving device is used to drive the baffle 16 to adjust the volume of the test box 4 by changing the position of the baffle 16 in the box. Preferably, the driving device controls the baffles 16 on both sides to move in the box of the test box 4, and controls the volume of the box by changing the distance between the baffles 16 on both sides.

[0063] In the present invention, the driving device comprises:

[0064] The power device has an output end connected to a gear 15. The power device can be operated manually or electrically, and the electrically operated device can be an electrode, and the output end of the electrode drives the gear 15 to rotate.

[0065] The transmission rod 14 has one end connected to the baffle 16 and the other end meshed with the gear 15. The transmission rod 14 is preferably a toothed plate, preferably two in number, respectively meshed with the gear 15, and the rotation of the gear 15 drives the two transmission rods 14 to move toward each other.

[0066] The present invention also includes:

[0067] The brake 18 is used to lock the position of the baffle 16 in the box to prevent the baffle 16 from being pushed outward due to the packing extrusion and causing the volume change.

[0068] The housing 17 is used to cover the gear 15 and other devices to provide protection.

[0069] The present invention also includes:

[0070] The slideway 2 is arranged on the load-bearing support 1, preferably on the load-bearing support 1. A drainage port is provided on the slideway 2. The slideway 2 is preferably fixed to the platform of the load-bearing support 1 by screws.

[0071] The trolley 3 is arranged on the slideway 2 and can move on the slideway 2, and a drainage port is provided on the trolley 3. The panel of the trolley 3 is preferably provided with an iron clamp 8 for fixing the test box 4, and a lock hole is provided at the front of the trolley.

[0072] The test box 4 is arranged on the trolley 3 .

[0073] The mouth of the conical bottle on the gravity collection module 10 is aligned with the drainage openings on the slide 2, the trolley 3 and the test box 4 in sequence, and is arranged directly below the trolley 3 to collect the electroosmotic drainage.

[0074] In the present invention, a limit lock 9 for locking the trolley 3 is provided at the end of the slideway 2 .

[0075] In the present invention, the current and voltage data acquisition module 7 is connected to the potential measuring needle arranged in the test object through a wire, and can measure and save the current and voltage of the soil at a given time interval.

[0076] The present invention also includes:

[0077] A DC regulated power supply 6 is provided in the control box and is used to adjust the voltage and current of the electrode (preferably by adjusting knobs provided on the control panel). There are two modes: constant voltage and constant current. Taking into account the corrosion of the wires caused by multiple tests, two pluggable wires are provided to connect the power supply to the electrode, and the wire-electrode ends are connected by wiring terminals.

[0078] The method of using the electroosmotic drainage test device provided by the present invention is as follows:

[0079] Apply lubricating oil to the inner groove of slideway 2. Place trolley 3 on the groove of slideway 2, and pull it on slideway 2 several times to ensure that it can slide smoothly. Place test box 4 on trolley 3, align the drain port of test box 4 with the drain port of trolley 3, and open iron clamp 8 to fix the four corners of test box 4. Adjust the volume adjustment device inside test box 4 so that the volume inside the box of test box 4 meets the test needs, and lock the volume adjustment device with brake 18. Tighten the electrode and the wire with screws, and take insulation measures. The electrode cathode is installed at the bottom of test box 4. Add filler to test box 4 and tamp it with a vibrating hammer to make the filler densely combined and eliminate the internal pores and bubbles of the filler. When the filler reaches the height of test box 41 / 5, a set of potential probes is laid on the filler. Add filler to test box 4 again and lay out potential probes. A total of four sets of potential probes are laid out, and the potential probes are connected to the current and voltage acquisition interface. Arrange the electrode anode on the filler, pass the electrode wire through the notch on the sealing cover 12 and connect it to the DC regulated power supply 6, buckle the sealing cover 12, and seal the notch with plasticine. Push the trolley 3 to the test area. Lock the trolley 3 with the limit lock 9 through the lock hole of the panel of the trolley 3. The current and voltage data acquisition module 7 is connected to the "current-voltage acquisition interface" on the operation panel 5. Zero the gravity data display module of the operation panel 5. Let it stand for a while, and wait until no water flows out of the drain outlet within half an hour. At this time, it can be regarded that the free water in the filler can no longer be discharged under the influence of gravity. After checking that the circuit is correct, power on.

[0080] When conducting a constant voltage test, press the power switch on the operation panel 5. Adjust the voltage coarse and fine adjustment knob to set the voltage value to the voltage required for the test, and adjust the knob again to make the current value reach the maximum rated value. Connect the output terminal of the instrument to the load, and press the ON / OFF key. At this time, the equipment works in constant voltage mode. Turn on the data acquisition module switch on the panel, and the current-voltage display module on the panel displays real-time values. The panel starts to output the coordinate axis curve, and the system is set to record data every 30 minutes. The system carries out an electroosmotic drainage consolidation test under constant pressure.

[0081] The assembly steps for constant current test are the same as above. When adjusting the power control panel, connect the output terminal of the instrument to the load. Turn on the power, start the instrument to enter the working state, adjust the voltage coarse and fine adjustment knob, and set the current to the current required for the test. Adjust the voltage coarse and fine adjustment knob to make the voltage reach the maximum rated value. Press the ON / OFF key, and the equipment is now in constant current mode. Turn on the data acquisition module switch on the panel, and the current-voltage display module on the control panel displays the real-time value. The coordinate axis appears on the control panel and starts to output the curve. Set the system to record data every 30 minutes. The system carries out electroosmosis drainage consolidation test under constant current state.

[0082] After the test, disconnect the power supply, open the limit lock 9 on the slide 2, and pull the trolley 3 away from the test area. Open the brake 18 on the volume adjustment device, and adjust the knob clockwise to expand the distance between the baffles 16. Peel off the filler and take out the electrode. Open the iron clamp 8 on the panel of the trolley 3 and clean the test box 4.

[0083] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electroosmotic drainage test device, characterized in that: include: load-bearing bracket; A test box, which is arranged on the load-bearing bracket, has electrodes arranged therein, and the interior of the box is used to contain the items to be tested; A displacement measurement system is arranged on the load-bearing bracket; A control box is arranged on the load-bearing bracket; The control box includes a control panel, a current and voltage data acquisition module, a gravity data acquisition module, a current-voltage data display module, a gravity data display module and an image display module; The current and voltage data acquisition module is used to collect the current and voltage information of the test object and display it on the control panel through the current-voltage data display module; The gravity data acquisition module measures the gravity data of the electroosmotic displacement of the test article through the displacement measurement system, and displays it on the control panel through the gravity data display module; The image display module is used to draw a curve showing the change of current, voltage and water discharge over time under constant voltage or constant current conditions according to the collected current, voltage and gravity data.

2. The electroosmotic drainage test device according to claim 1, characterized in that: The displacement measurement system comprises: A gravity collection module, used to collect gravity data of the electroosmotic displacement of the test article in the test box; The data collector is connected to the gravity collection module and the gravity data display module respectively, and is used to record the gravity data collected by the gravity collection module.

3. The electroosmotic drainage test device according to claim 1, characterized in that: A volume regulating device for regulating the volume of the test box is arranged in the test box.

4. The electroosmotic drainage test device according to claim 3, characterized in that: The volume adjusting device comprises: A baffle, which is located in the test box; A driving device is used to drive the baffle plate to adjust the volume of the test box by changing the position of the baffle plate in the box body.

5. The electroosmotic drainage test device according to claim 4, characterized in that: The driving device comprises: A power device, an output end of which is connected to a gear; A transmission rod has one end connected to the baffle and the other end meshed with the gear.

6. The electroosmotic drainage test device according to claim 5, characterized in that: Also includes: A brake is used to lock the position of the baffle in the box.

7. The electroosmotic drainage test device according to claim 1, characterized in that: Also includes: A slideway, which is arranged on the load-bearing bracket; A trolley is disposed on the slideway and is capable of moving on the slideway; The test box is arranged on the trolley.

8. The electroosmotic drainage test device according to claim 7, characterized in that: A limit lock for locking the trolley is arranged at the end of the slideway.

9. The electroosmotic drainage test device according to claim 1, characterized in that: The current and voltage data acquisition module is connected to a potential measuring needle arranged in the object to be tested through a wire.

10. An electroosmotic drainage test device according to any one of claims 1 to 9, characterized in that: Also includes: A DC regulated power supply is arranged in the control box and is used to adjust the voltage and current of the electrode.

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