High-pressure consolidation leaching test device

Abstract

The invention relates to the technical field of geotechnical tests, and discloses a high-pressure consolidation leaching test device which is characterized in that a pressurization mechanism is arranged on a split soil sample cylinder assembly, an assembling mechanism is arranged on a water supply tank, pressurization mechanisms are arranged on a lower fixing plate and a middle fixing plate, a sliding table control screw is movably connected into an upper sliding table screw limiting stopper, and a lower sliding table screw limiting stopper is movably connected with a lower sliding table control screw; the surface of the sliding table control screw is in threaded connection with a sliding table, and the bottom of the U-shaped plate is fixedly connected with a weight. According to the high-pressure consolidation leaching test device, the lever principle is utilized, the pressure applied to a soil sample is adjusted according to the placement position and weight of the weight, the permeability coefficient of a soil body under different confining pressure conditions can be measured, and the mutual influence relation between seepage and consolidation when the soil body contains soluble minerals is measured. The lower pressurizing connecting piece is in bolted connection with the pressurizing screw rod, so that when the pressurizing screw rod transmits pressure, deviation or shaking caused by uneven stress can be avoided, the pressure is uniformly applied to a soil sample in the split soil sample cylinder assembly, and a test result is more accurate and repeatable.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical testing, in particular to a high-pressure consolidation leaching testing device. Background Art

[0002] In the field of geotechnical engineering and environmental science research, it is crucial to understand the characteristics of soil under complex natural conditions. Traditional consolidation test equipment can only simulate the impact of pressure on soil, and cannot take into account leaching. In the natural environment, soil is subjected to the dual effects of rainfall leaching and overlying pressure for a long time, and its composition and structure are constantly changing. For example, in rainy mountainous areas, the foundation soil will change due to leaching and self-weight pressure, leading to problems such as building foundation settlement and slope instability.

[0003] However, early leaching test devices lacked consideration of pressure factors and were unable to comprehensively explore the synergistic effects of the two. In order to fill this research gap and meet the needs of scientific research and engineering practice, a high-pressure consolidation leaching test device came into being. It integrates pressure simulation and leaching simulation functions to help scientific researchers conduct in-depth research on soil characteristics and lay a solid theoretical foundation for various engineering construction and environmental protection work. Summary of the Invention

[0004] The object of the present invention is to provide a high-pressure consolidation leaching test device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a high-pressure consolidation and leaching test device, comprising a lower fixed plate, a middle fixed plate, an upper fixed plate, a pressurizing mechanism, a leaching mechanism and a split soil sample barrel assembly, wherein the bottom of the lower fixed plate is fixedly connected to table legs on all sides, the top of the upper fixed plate is fixedly connected to a water supply box, the split soil sample barrel assembly is provided with a leaching mechanism, the water supply box is provided with an assembly mechanism, the lower fixed plate and the middle fixed plate are provided with a pressurizing mechanism, the split soil sample barrel assembly is two in number, the bottom of the split soil sample barrel assembly is fixedly connected to a water outlet, and a soil sample is provided inside the split soil sample barrel assembly; The pressing mechanism includes a nut and a lever, and the nuts are respectively fixedly connected to the lower fixing plate, the middle fixing plate and the top of the upper fixing plate, the nut is internally threadedly connected to the fixing plate connecting screw, the lower fixing plate and the top of the middle fixing plate are fixedly connected to the slide screw limiter, and the slide screw limiter above is movably connected to the slide control screw, the slide control screw surface and the lower fixing plate are rotatably connected, the slide control screw top is fixedly connected to the slide control handwheel, the slide control screw surface is threadedly connected to the slide, and the right side of the slide is fixedly connected to the lever slide connecting plate, and the right side of the lever is densely provided with card slots, and a rod is inserted in the card slot, and a U-shaped plate is provided on the surface of the rod, and the U-shaped plate is provided on the surface of the lever, and a weight is fixedly connected to the bottom of the U-shaped plate.

[0006] Preferably, the lever slide connecting plate and one end of the lever are connected by a pin shaft, and the pin shaft passes through the corresponding holes of the two, so that the lever can rotate flexibly around the pin shaft. The slide connecting plate moves up and down, so that the lever can remain horizontal to provide a fixed lever ratio.

[0007] Preferably, a through groove is provided inside the lower fixed plate, and the surface of the lever slide connecting plate is inserted into the through groove provided inside the lower fixed plate.

[0008] Preferably, the leaching mechanism includes a throat clamp, which is arranged on the surface of the split soil sample cylinder assembly, a lower permeable stone is arranged at the bottom of the inner wall of the split soil sample cylinder assembly, a lower filter paper is arranged on the top of the lower permeable stone, the soil sample is arranged on the top of the lower filter paper, an upper filter paper is arranged on the top of the soil sample, an upper permeable stone is arranged on the top of the upper filter paper, a nano double-sided tape is arranged on the closed surface of the split soil sample cylinder assembly, a pressurized round iron sheet is arranged on the top of the upper permeable stone, a pressurized bolt is inserted into the inside of the pressurized round iron sheet, and the top of the pressurized bolt is fixed It is connected to an upper pressure connecting piece, a dial indicator is fixedly connected to the top of the middle fixed plate, the dial indicator is arranged on the top of the upper pressure connecting piece, long hole slots are densely opened inside the left side of the lever, a long rod is inserted in the long hole slot, a lower pressure iron sheet connector is inserted on the surface of the long rod, the lower pressure iron sheet connector is arranged on the upper part of the lever, the top of the lower pressure iron sheet connector is fixedly connected to the lower pressure connecting piece, the top of the lower pressure connecting piece is threadedly connected to a pressure screw, and the surface of the pressure screw is threadedly connected to the inside of the upper pressure connecting piece.

[0009] Preferably, the lower pressure connecting plate and the lower pressure iron sheet connector are respectively arranged at the bottom of the lower fixed plate, and the lower pressure iron sheet connector is arranged on the left side of the U-shaped plate. The upper pressure connecting plate and the lower pressure connecting plate are respectively connected to the relevant parts of the pressure screw and the split soil sample barrel assembly with bolts to assist in transmitting pressure and ensure that pressure is evenly applied to the soil sample.

[0010] Preferably, through holes are provided inside the lower fixing plate and the middle fixing plate, and there are two pressurizing screws, and the surfaces of the two pressurizing screws are respectively inserted into the through holes provided inside the lower fixing plate and the middle fixing plate.

[0011] Preferably, the assembly mechanism includes a water inlet valve, which is fixedly connected to the right side of the water supply tank, and a water supply pipe is fixedly connected to the surface of the water inlet valve. A water outlet pipe is provided in the water collecting tank, and the water outlet valve is fixedly connected to the surface of the water outlet pipe.

[0012] Preferably, a through hole groove is opened inside the lower fixed plate, and the surface of the water outlet is inserted into the through hole groove opened inside the lower fixed plate. The other end of the water outlet pipe is fixedly connected to the water outlet. An inserting connection can be adopted to insert the water outlet pipe into the water inlet reserved in the water collecting tank, and the water is sealed to ensure that the leaching water is smoothly collected in the water collecting tank.

[0013] Compared with the prior art, the present invention provides a high-pressure consolidation leaching test device with the following beneficial effects: 1. In this high-pressure consolidation leaching test device, the pressure screw is connected to the lever pin through the lower pressure iron plate connector. This design can use the lever principle to accurately adjust the pressure applied to the soil sample according to the placement and weight of the weights. This can simulate the pressure on the soil under different geological conditions and provide a reliable means for studying the seepage characteristics of soil samples under high-pressure consolidation conditions. The bolt connection between the lower pressure connecting piece and the pressure screw, as well as the bolt connection between the upper pressure connecting piece and the pressure screw, can ensure that the pressure screw is in a stable state when transmitting pressure, avoiding deviation or shaking due to uneven force, thereby evenly applying pressure to the soil sample in the split soil sample cylinder assembly, making the test results more accurate and repeatable.

[0014] 2. The high-pressure consolidation leaching test device is fixed to the top of the split soil sample cylinder assembly by a pressurized round iron sheet. The upper permeable stone and upper filter paper placed below it in sequence play the role of evenly dispersing the leaching water. After the leaching water enters the split soil sample cylinder assembly from the water supply tank through the water supply pipe, it first contacts the upper permeable stone. Its porous structure initially disperses the water flow, and then it is further evenly spread to the soil sample surface through the upper filter paper to prevent the water flow from eroding the soil sample structure, so that the test results can better reflect the changes of the overall soil sample under the action of leaching.

[0015] 3. The high-pressure consolidation leaching test device, by laying the lower filter paper flat between the soil sample and the lower permeable stone, can effectively prevent the fine particles in the soil sample from entering the pores of the lower permeable stone under the action of leaching water, avoid pore blockage, and ensure that the leaching water can continuously and smoothly pass through the lower permeable stone and flow out from the water outlet at the bottom of the split soil sample cylinder assembly, thereby maintaining the normal progress of the leaching test. At the same time, the lower permeable stone is directly placed at the bottom of the split soil sample cylinder assembly to support the soil sample and other structures above, and its permeability ensures that the leaching water is smoothly discharged under the action of gravity, providing stable water flow output for experimental links such as studying changes in the composition of leaching water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work. Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of a cutout portion of the middle pressurizing mechanism; Figure 3 for Figure 1 Schematic diagram of the structure of the intercepted part of the leaching mechanism; Figure 4 It is a schematic diagram of the partial structure of the pressurizing mechanism and the leaching mechanism; Figure 5 This is a schematic diagram of the structure of the leaching mechanism and the split soil sample cylinder assembly; Figure 6 for Figure 1 Schematic diagram of the structure of the cut-out part of the assembly mechanism.

[0017] In the figure: 1, lower fixing plate; 11, table leg; 2, water collecting tank; 3, middle fixing plate; 4, upper fixing plate; 5, water supply tank; 6, split soil sample cylinder assembly; 61, water outlet; 62, soil sample; 7, pressurizing mechanism; 71, slide control handwheel; 72, slide screw limiter; 73, slide control screw; 74, slide; 75, lever slide connecting plate; 76, weight; 77, lever; 78, nut; 79, fixing plate connecting screw; 701, plug rod; 702, U-shaped plate; 8 , leaching mechanism; 81. Lower pressure iron sheet connector; 82. Pressure screw; 83. Lower pressure connecting piece; 84. Dial indicator; 85. Upper pressure connecting piece; 86. Pressure bolt; 87. Pressure round iron sheet; 88. Hose clamp; 89. Upper permeable stone; 801. Upper filter paper; 802. Nano double-sided tape; 803. Lower filter paper; 804. Lower permeable stone; 805. Long rod; 9. Assembly mechanism; 91. Water inlet valve; 92. Water supply pipe; 93. Outlet valve; 94. Outlet pipe. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0020] The present invention provides the following technical solutions: Example 1 Combine Figures 1 to 2 A high-pressure consolidation leaching test device includes a lower fixed plate 1, a middle fixed plate 3, an upper fixed plate 4 and a split soil sample tube assembly 6. The bottom of the lower fixed plate 1 is fixedly connected to table legs 11 on all sides, and the top of the upper fixed plate 4 is fixedly connected to a water supply box 5. A leaching mechanism 8 is provided in the split soil sample tube assembly 6, and an assembly mechanism 9 is provided on the water supply box 5. A pressurizing mechanism 7 is provided on the lower fixed plate 1 and the middle fixed plate 3. There are two split soil sample tube assemblies 6. A water outlet 61 is fixedly connected to the bottom of the split soil sample tube assembly 6, and a soil sample 62 is provided inside the split soil sample tube assembly 6. The pressing mechanism 7 includes a nut 78 and a lever 77. The nut 78 is fixedly connected to the top of the lower fixed plate 1, the middle fixed plate 3 and the upper fixed plate 4 respectively. The nut 78 is threadedly connected to the fixed plate connecting screw 79. The top of the lower fixed plate 1 and the middle fixed plate 3 are fixedly connected to the slide screw limiter 72. The upper slide screw limiter 72 is movably connected to the slide control screw 73. The surface of the slide control screw 73 is rotatably connected to the inside of the lower fixed plate 1. The top of the slide control screw 73 is fixedly connected to the slide control handwheel 71. The surface of the slide control screw 73 is threadedly connected to the slide 74. The right side of the slide 74 is fixedly connected to the lever slide connecting plate 75. The right side of the lever 77 is densely provided with card slots, and a rod 701 is inserted in the card slot. The surface of the rod 701 is provided with a U-shaped plate 702. The U-shaped plate 702 is provided on the surface of the lever 77. The bottom of the U-shaped plate 702 is fixedly connected to a weight 76; The lever slide connecting plate 75 and one end of the lever 77 are connected by a pin shaft, and the pin shaft passes through the corresponding holes of the two. A through groove is opened inside the lower fixed plate 1, and the surface of the lever slide connecting plate 75 passes through and is inserted into the through groove opened inside the lower fixed plate 1.

[0021] Furthermore, the lever principle can be used to accurately adjust the pressure applied to the soil sample 62 according to the placement and weight of the weight 76, thereby simulating the pressure on the soil under different burial depths and providing a reliable means for studying the seepage characteristics of soil samples under high-pressure consolidation conditions.

[0022] Example 2 See Figure 1-5 , and on the basis of Example 1, the leaching mechanism 8 further comprises a throat hoop 88, the throat hoop 88 is arranged on the surface of the split soil sample cylinder assembly 6, the bottom of the inner wall of the split soil sample cylinder assembly 6 is provided with a lower permeable stone 804, the top of the lower permeable stone 804 is provided with a lower filter paper 803, the soil sample 62 is provided on the top of the lower filter paper 803, the top of the soil sample 62 is provided with an upper filter paper 801, the top of the upper filter paper 801 is provided with an upper permeable stone 89, the closed surface of the split soil sample cylinder assembly 6 is provided with a nano double-sided tape 802, the top of the upper permeable stone 89 is provided with a pressurized round iron sheet 87, the pressurized round iron sheet 87 is plugged with a pressurized bolt 86, and the pressurized round iron sheet 87 is inserted with a pressurized bolt 86. The top of the pressure bolt 86 is fixedly connected to the upper pressure connecting piece 85, and the top of the middle fixed plate 3 is fixedly connected to the dial indicator 84, which is arranged on the top of the upper pressure connecting piece 85. The left side of the lever 77 is densely provided with long hole slots, and a long rod 805 is inserted into the long hole slot. The surface of the long rod 805 is inserted with the lower pressure iron sheet connector 81, which is arranged on the upper part of the lever 77. The top of the lower pressure iron sheet connector 81 is fixedly connected to the lower pressure connecting piece 83, and the top of the lower pressure connecting piece 83 is threadedly connected to the pressure screw 82, and the surface of the pressure screw 82 is threadedly connected to the inner part of the upper pressure connecting piece 85; The lower pressure connecting piece 83 and the lower pressure iron sheet connector 81 are respectively arranged at the bottom of the lower fixed plate 1, and the lower pressure iron sheet connector 81 is arranged on the left side of the U-shaped plate 702. Through holes are opened inside the lower fixed plate 1 and the middle fixed plate 3. There are two pressure screws 82, and the surfaces of the two pressure screws 82 are respectively inserted into the through holes opened inside the lower fixed plate 1 and the middle fixed plate 3.

[0023] Furthermore, a pressurized round iron sheet 87 is fixed on the top of the split soil sample cylinder assembly 6, and an upper permeable stone 89 and an upper filter paper 801 are placed thereunder in sequence, which play a role in evenly dispersing the leaching water. After the leaching water enters the split soil sample cylinder assembly 6 from the water supply tank 5 through the water supply pipe 92, it first contacts the upper permeable stone 89, and its porous structure preliminarily disperses the water flow, and then is further evenly spread to the surface of the soil sample 62 through the upper filter paper 801, ensuring that all parts of the soil sample are evenly leached, so that the test results can better reflect the changes in the overall soil sample under the action of leaching.

[0024] Example 3 See Figure 1-6 On the basis of Example 1, the assembly mechanism 9 is further obtained, which includes a water filling valve 91, which is fixedly connected to the right side of the water supply tank 5, and a water supply pipe 92 is fixedly connected to the surface of the water filling valve 91. A water outlet pipe 94 is provided in the water collecting tank 2, and a water outlet valve 93 is fixedly connected to the surface of the water outlet pipe 94. A through hole groove is opened inside the lower fixed plate 1, and the surface of the water outlet 61 is inserted into the through hole groove opened inside the lower fixed plate 1, and the other end of the water outlet pipe 94 is fixedly connected to the water outlet 61.

[0025] Furthermore, water flows out from the water outlet 61 at the bottom of the split soil sample cylinder assembly 6 to maintain the normal progress of the leaching test. At the same time, the lower permeable stone 804 is directly placed at the bottom of the split soil sample cylinder assembly 6, which can support the soil sample and other structures above. Its permeability ensures that the leached water is smoothly discharged under the action of gravity, providing a stable water flow output for experimental links such as studying changes in the composition of leached water.

[0026] During actual operation, when this device is in use, the table leg 11 is the supporting foundation of the entire device, and its top is connected to the lower fixed plate 1, giving the device excellent stability to ensure that it will not shake during the test. The split soil sample tube assembly 6 is a split structure, which is tightly spliced together by the hose clamp 88. The hose clamp surrounds the joint of the soil sample tube, and by tightening the bolts thereon, the contraction force is used to make the split soil sample tube fit tightly, effectively preventing the leaching water from leaking along the joint during the test. At the bottom of the split soil sample tube assembly 6, the lower permeable stone 804 is directly placed on the bottom of the tube, and the two fit tightly to ensure that water can pass through smoothly. The lower filter paper 803 is flat on the lower permeable stone 804, and is tightly connected to the lower permeable stone by virtue of its own material adsorption. To prevent soil particles from clogging the pores of the permeable stone, the soil sample 62 is placed on the lower filter paper 803 and naturally accumulated. The upper filter paper 801 is laid on the top of the soil sample 62 and also contacts the soil sample by adsorption. The upper permeable stone 89 is placed on the upper filter paper 801 to ensure that the leaching water can evenly enter the soil sample. Under special circumstances, the nano double-sided tape 802 can be used to assist in fixing the filter paper, but attention should be paid to its possible subtle impact on the test results. The pressure round iron sheet 87 is placed on the upper permeable stone 89, and the pressure bolt 86 passes through the pressure round iron sheet 87 and is screwed into the preset threaded hole of the split soil sample cylinder assembly 6. The pressure round iron sheet 87 is firmly connected to the split soil sample cylinder assembly 6 so that the pressure can be accurately transmitted to the soil sample during the pressurization stage; The lower fixing plate 1, the middle fixing plate 3 and the upper fixing plate 4 are sequentially penetrated by the fixing plate connecting screw 79. After the screw passes through the holes at the corresponding positions of each fixing plate, nuts 78 are screwed on both ends. By tightening the nuts 78, the three fixing plates are tightly connected to build a stable device frame, providing reliable installation support for other components. The slide control handwheel 71 and the slide control screw 73 are key-connected or interference-fitted. When key-connected, key slots need to be machined at the corresponding positions of the slide control handwheel 71 and the slide control screw 73, and the key blocks are inserted to achieve synchronous rotation of the two. The interference fit is based on the The two are tightly combined by pressure assembly based on the interference fit between the parts. The slide control screw 73 is connected to the slide 74 through a threaded connection. A threaded hole that is adapted to the slide control screw 73 is processed inside the slide 74. When the slide control handwheel 71 is turned, the slide control screw 73 rotates accordingly, thereby driving the slide 74 to move on the middle fixed plate 3 along the screw axis. The slide screw limiters 72 are installed on the middle fixed plate 3 by bolts. The positions are set at both ends of the moving path of the slide 74. When the slide 74 touches the limiter, it will stop moving, thereby ensuring safe operation. The slide 74 is connected to the lever slide connecting plate 75 by bolts. When the slide 74 moves, it can drive the lever slide connecting plate 75 to move synchronously. The lever slide connecting plate 75 is connected to one end of the lever 77 by a pin. The pin passes through the corresponding holes of the two, which can keep the lever horizontal to provide a fixed leverage ratio. The other end of the lever 77 is connected to the pressure screw 82 through the lower pressure iron sheet connector 81. The lower pressure iron sheet connector 81 is connected to the lever 77 by a pin shaft and is threadedly connected to the pressure screw 82. The weight 76 is inserted into the slot provided in the lever 77 through the insertion rod 701, and the torque of the lever 77 is changed by gravity to adjust the pressure of the pressure screw 82. The upper pressure connecting piece 85 and the lower pressure connecting piece 83 are respectively connected to the pressure screw 82 and the relevant parts of the split soil sample cylinder assembly 6 by bolts to assist in transmitting pressure and ensure that the pressure is evenly applied to the soil sample 62. The dial indicator 84 is installed in a stable position close to the split soil sample cylinder assembly 6, such as on the middle fixing plate 3 or the upper fixing plate 4, through a magnetic base or a special clamp. The meter head contacts the top of the split soil sample cylinder assembly 6 or the pressure round iron sheet 87, and is used to measure the deformation of the soil sample 62 during pressurization and seepage. When the lever 74 is in the unlocked position, the locking cam 72 is locked, and the locking cam 73 is locked. A weight 76 is fixedly connected to the bottom of the template 702. When one end of the lever 77 is driven by the slide to swing up and down, the other end of the lever 77 will tilt up or press down, thereby changing the force of the weight 76 on the lever 77, and the force is transmitted to the pressure mechanism part connected to the left side of the lever 77 through the lever principle. The left side of the lever 77 is densely provided with long hole grooves, and a long rod 805 is inserted in the long hole groove. The surface of the long rod 805 is inserted with a lower pressure iron sheet connector 81. The top of the lower pressure iron sheet connector 81 is fixedly connected to the lower pressure connecting piece 83. The top of the lower pressure connecting piece 83 is threadedly connected to the pressure screw 82. The surface of the pressure screw 82 is threadedly connected to the inside of the upper pressure connecting piece 85. The upper pressure connecting piece 85 is pressurized by The bolt 86 is connected to the split soil sample cylinder assembly 6, and the pressurized round iron sheet 87 is located on the top of the upper permeable stone 89. When the other end of the lever 77 is pressed down, the pressure will be transmitted to the soil sample 62 through the long rod 805, the lower pressurized iron sheet connector 81, the lower pressurized connecting piece 83, the pressurized screw 82, the upper pressurized connecting piece 85 and the pressurized round iron sheet 87, thereby pressurizing the soil sample 62; conversely, the pressure is reduced. By changing the weight of the weight 76, the length of the force arm at both ends of the lever 77, and adjusting the position of the insertion rod 701 in the slot and the position of the long rod 805 in the long hole slot, as well as the height of the slide 74, the pressure applied to the soil sample can be accurately adjusted according to the test requirements using the lever principle; The water supply box 5 is connected to one end of the water supply pipe 92. The connection method can be a threaded connection, that is, threads are processed at the water outlet of the water supply box and the water supply pipe joint, and the connection is tightened; a quick connector connection can also be used for convenient and quick installation and disassembly. The water inlet valve 91 is installed on the water supply pipe 92 and is connected to the water supply pipe through threads to control the water flow interruption. The water outlet 61 at the bottom of the split soil sample cylinder assembly 6 is connected to one end of the outlet pipe 94. The connection method is mostly welding or sealed connection. Welding can ensure the sealing of the connection and prevent leakage of leaching water; the sealed connection is achieved by adding a sealing gasket at the interface. The outlet valve 93 is installed on the outlet pipe 94 and is connected to the outlet pipe through threads to control the outflow speed of the leaching water. The other end of the outlet pipe 94 is connected to the water collecting tank 2. An insert-type connection can be used to insert the outlet pipe into the water inlet reserved for the water collecting tank 2, and perform sealing treatment to ensure that the leaching water is smoothly collected in the water collecting tank 2.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A high-pressure consolidation leaching test device, comprising a lower fixing plate (1), a middle fixing plate (3), an upper fixing plate (4), a water collecting tank (2) and a split soil sample cylinder assembly (6), characterized in that: The bottom of the lower fixed plate (1) is fixedly connected to table legs (11) on all sides, the top of the upper fixed plate (4) is fixedly connected to a water supply box (5), a leaching mechanism (8) is provided in the split soil sample cylinder assembly (6), an assembly mechanism (9) is provided on the water supply box (5), a pressurizing mechanism (7) is provided on the lower fixed plate (1) and the middle fixed plate (3), there are two split soil sample cylinder assemblies (6), a water outlet (61) is fixedly connected to the bottom of the split soil sample cylinder assembly (6), and a soil sample (62) is provided inside the split soil sample cylinder assembly (6); The pressurizing mechanism (7) includes a nut (78) and a lever (77), wherein the nut (78) is fixedly connected to the top of the lower fixed plate (1), the middle fixed plate (3) and the upper fixed plate (4), respectively, and the internal thread of the nut (78) is connected to the fixed plate connecting screw (79), and the top of the lower fixed plate (1) and the middle fixed plate (3) are fixedly connected to the slide screw limiter (72), and the upper slide screw limiter (72) is movably connected to the slide control screw (73), and the surface of the slide control screw (73) is connected to the inner rotation of the lower fixed plate (1). The top of the slide control screw (73) is fixedly connected to the slide control handwheel (71), the surface of the slide control screw (73) is threadedly connected to the slide (74), the right side of the slide (74) is fixedly connected to the lever slide connecting plate (75), the right side of the lever (77) is densely provided with card slots, the card slots are inserted with a plug rod (701), the surface of the plug rod (701) is provided with a U-shaped plate (702), the U-shaped plate (702) is provided on the surface of the lever (77), and the bottom of the U-shaped plate (702) is fixedly connected to a weight (76).

2. A high-pressure consolidation leaching test device according to claim 1, characterized in that: The lever slide connecting plate (75) and one end of the lever (77) are connected via a pin, and the pin passes through corresponding holes in the two.

3. A high-pressure consolidation leaching test device according to claim 1, characterized in that: A through slot is provided inside the lower fixed plate (1), and the surface of the lever slide connecting plate (75) is inserted through the through slot provided inside the lower fixed plate (1).

4. A high-pressure consolidation leaching test device according to claim 1, characterized in that: The leaching mechanism (8) includes a throat clamp (88), a split soil sample tube assembly (6), a water outlet (61), an upper permeable stone (89), an upper filter paper (801), a soil sample (62), a lower filter paper (803) and a lower permeable stone (804), wherein the throat clamp (88) is arranged on the surface of the split soil sample tube assembly (6), the bottom of the inner wall of the split soil sample tube assembly (6) is provided with a lower permeable stone (804), the top of the lower permeable stone (804) is provided with a lower filter paper (803), the soil sample (62) is arranged on the top of the lower filter paper (803), the top of the soil sample (62) is provided with an upper filter paper (801), the top of the upper filter paper (801) is provided with an upper permeable stone (89), the closing surface of the split soil sample tube assembly (6) is provided with a nano double-sided tape (802), the top of the upper permeable stone (89) is provided with a pressurized round iron sheet (87), and the A pressurizing bolt (86) is inserted into the pressurizing round iron sheet (87), and the top of the pressurizing bolt (86) is fixedly connected to the upper pressurizing connecting piece (85). The top of the middle fixed plate (3) is fixedly connected to the dial indicator (84), and the dial indicator (84) is arranged on the top of the upper pressurizing connecting piece (85). Long hole grooves are densely opened inside the left side of the lever (77), and a long rod (805) is inserted into the long hole groove. The surface of the long rod (805) is inserted with a lower pressurizing iron sheet connector (81), and the lower pressurizing iron sheet connector (81) is arranged on the upper part of the lever (77). The top of the lower pressurizing iron sheet connector (81) is fixedly connected to the lower pressurizing connecting piece (83), and the top of the lower pressurizing connecting piece (83) is threadedly connected to the pressurizing screw (82), and the surface of the pressurizing screw (82) is threadedly connected to the inside of the upper pressurizing connecting piece (85).

5. The high-pressure consolidation leaching test device according to claim 1, characterized in that: The lower pressurized connecting piece (83) and the lower pressurized iron sheet connector (81) are respectively arranged at the bottom of the lower fixed plate (1), and the lower pressurized iron sheet connector (81) is arranged on the left side of the U-shaped plate (702).

6. A high-pressure consolidation leaching test device according to claim 1, characterized in that: The lower fixing plate (1) and the middle fixing plate (3) are provided with through-hole grooves therein, and there are two pressurizing screws (82). The surfaces of the two pressurizing screws (82) are respectively inserted into the through-hole grooves provided in the lower fixing plate (1) and the middle fixing plate (3).

7. The high-pressure consolidation leaching test device according to claim 1, characterized in that: The assembly mechanism (9) comprises a water inlet valve (91), the water inlet valve (91) being fixedly connected to the right side of the water supply box (5), a water supply pipe (92) being fixedly connected to the surface of the water inlet valve (91), a water outlet pipe (94) being provided in the water collecting box (2), and a water outlet valve (93) being fixedly connected to the surface of the water outlet pipe (94).

8. A high-pressure consolidation leaching test device according to claim 7, characterized in that: A through-hole groove is provided inside the lower fixed plate (1), and the surface of the water outlet (61) is inserted through the through-hole groove provided inside the lower fixed plate (1). The other end of the water outlet pipe (94) is fixedly connected to the water outlet (61).

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