Chemical erosion simulation device for automatically simulating shear rheological test
An automated chemical infiltration simulation device addresses the inefficiencies of existing systems by using a machine frame, dual cutting boxes, and a pressure-cutting apparatus to simulate rock layer erosion, achieving precise and efficient mechanical property measurements with reduced manual labor and space usage.
Patent Information
- Application Number
- CN202311254386.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-26
- Publication Date
- 2025-03-28
AI Technical Summary
Existing chemical solution infiltration devices for simulating rock layer erosion are cumbersome, lack precision, require significant manual operation, and have short pump head lifespans, making them inefficient for accurately measuring the mechanical properties of soft interbedded rock layers under chemical erosion.
An automated chemical infiltration simulation device comprising a machine frame, dual cutting boxes, a pressure-cutting apparatus, and a chemical infiltration system with pH testing and mixing components, featuring a clog-free design that allows for precise control of solution concentration and automated operation, reducing manual labor and space requirements.
The device enables precise and efficient simulation of rock layer erosion, providing accurate mechanical property measurements with reduced manual intervention and space usage, while ensuring effective cleaning and waste management.
Smart Images
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Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the field of experimental simulation technology, and in particular to a chemical erosion simulation device for automatically simulating shear rheology tests. Background Art
[0002] Permian limestone strata with weak interlayers are widely distributed in southwest my country. The strata have rich high-quality limestone mineral resources and are an important source of building materials for a large number of infrastructure construction in my country. Therefore, studying the mechanical properties of weak interlayers is crucial for evaluating the stability of mine slopes. When trees, flowers and other plants in the mining area wither and rot, oxalic acid (HOOC-COOH) is formed and gradually infiltrates into the weak interlayers through rainwater or groundwater. On the one hand, SO contained in rainwater 4 2- and NO 3 - The oxalic acid in the groundwater and the mineral particles in the weak interlayer [the main mineral components are illite-56.49% (KAl2[(SiAl)4O10]·(OH)2·nH2O), calcite-34.12% (CaCO3), quartz-6.51%, gypsum-2.88%] exchange substances in the form of chemical reactions, changing the mineral structure, causing its mechanical properties to gradually weaken over time; on the other hand, while changing the properties of the mineral particle skeleton, it will also affect the pore structure of the rock, such as some mineral particles dissolving and being carried away by water, changing the particle size and shape of the rock, and the size of the pores and cracks also changes accordingly, thus affecting the strength or deformation parameters of the rock. In order to obtain the rheological properties of the soft interlayer of the high slope under repeated chemical erosion, the most direct and effective method is to use the indoor shear rheology test device under the erosion of chemical solution to obtain the mechanical property parameters of the soft interlayer.
[0003] The existing chemical solution etching devices mainly have the following problems:
[0004] (1) Traditional chemical solution etching devices generally use micro-pumps to extract chemical solutions. The procedures are cumbersome, difficult to operate, and have low precision. They cannot accurately reach the required solution concentration, occupy a lot of manpower, and are non-automatic;
[0005] (2) In the conventional chemical solution etching device, the chemical solution tank and the proportioning solution tank are not integrated, the solution injection procedure is cumbersome, and the space occupied is large.
[0006] (3) The pump head of the traditional chemical solution corrosion device is easily damaged and has a short service life.
[0007] (4) The traditional chemical solution etching device has a complicated cleaning process after use. Summary of the invention
[0008] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
[0009] The present application embodiment provides a chemical solution erosion simulation device for shear rheology test, comprising:
[0010] frame;
[0011] A first shear box and a second shear box, wherein the first shear box is arranged on the second shear box, and the second shear box is arranged on the frame, and the test piece is arranged between the first shear box and the second shear box; a water pipe port is arranged at the shear box position where the sample is located, and is connected to a chemical etching device;
[0012] A compression shear device, which carries a shear box and performs a rheological shear test on the shear box;
[0013] The chemical etching device is arranged beside the pressing and shearing device and is connected to the shear box of the pressing and shearing device through a pipeline by a water pump.
[0014] In a feasible implementation manner, the device includes two solution glass cylinders, a pH value tester, a peristaltic pump, a mixed solution cylinder cover plate, a mixed solution cylinder, a stand, pipelines, a water pump, and a chemical water pressure controller.
[0015] The chemical solution cylinder has a hole on the upper plane and is equipped with a stopcock for adding solution reagents; the upper plane is provided with a handle; the side plane is provided with a groove that can be clamped with the convex groove on the cover plate of the mixed solution cylinder; the side is provided with a pump pipe connection port that can be connected to the pump pipe of the peristaltic pump;
[0016] The pH value tester has a tester contacting the solution at the end, a long tube in the middle is connected to fully contact the solution, and a circular base at the upper end forms a mortise and tenon structure with a circular notch of the mixed solution cylinder cover plate;
[0017] The peristaltic pump uses two pump heads. One pump tube is connected to the pump tube connectors of the two solution glass cylinders, and the other pump tube is connected to the mixed solution cylinder. The peristaltic pump is equipped with a controller to accurately adjust the flow rate.
[0018] The cover plate of the mixed solution cylinder is provided with a T-shaped convex groove which can be clamped with the grooves of the two solution glass cylinders to form a fixed structure; a circular concave hole is dug on the cover plate, which passes through the cover plate and is used to place the pH value tester; two pump pipe ports are provided on the cover plate, which pass through the cover plate and are used to connect the pump pipe; four cylindrical convex columns are provided on the lower plane of the cover plate;
[0019] The upper plane of the mixed solution cylinder is provided with four grooves, which are connected to the cover plate and used for fixing and preventing seepage;
[0020] The pedestal serves as a support; the space below the pedestal is used to place a water pump and a chemical water pressure controller;
[0021] The booster pump pressurizes the solution and pumps it into the chemical water pressure controller
[0022] The chemical water pressure controller controls the water pressure and flow rate to flow water into the shear box.
[0023] In a feasible embodiment, the stand in the chemical erosion simulation device for shear rheology test also includes:
[0024] A circular boss is arranged on the upper plane of the pedestal, the center of which is hollowed out, and a motor is arranged inside the boss for connecting the spiral blades in the cylinder.
[0025] In a feasible implementation, the mixed solution cylinder in the chemical erosion simulation device for shear rheology test further includes: a water inlet pipeline, a water outlet pipeline, and a spiral blade.
[0026] A water inlet pipeline is arranged on the left cylindrical surface of the mixed solution tank and is used to pass clean water into the tank;
[0027] The water outlet pipes are provided with two water outlet pipes arranged at the bottom of the tank, the water outlet pipe 1 is connected to the waste tank, and the water outlet pipe 2 is connected to the water pump;
[0028] The spiral blade is connected to the bottom of the cylinder and can be connected to the motor in the circular boss to stir the solution.
[0029] In a feasible embodiment, the shearing device in the chemical erosion simulation device for shear rheology test further includes:
[0030] A reaction column is arranged on the protective frame and is used for abutting against the first shear box.
[0031] A horizontal static load electric cylinder is arranged on the protection frame and is used to push the second shear box to move.
[0032] A movable slide, disposed on the second transmission assembly, and capable of moving relative to the first shear box through the second transmission assembly;
[0033] A positioning member, arranged on the movable slide plate;
[0034] The normal static load electric cylinder is arranged on the protection frame and is used for abutting against the positioning member.
[0035] A displacement measuring device, which is arranged between the compression and shearing device and the shear box body, is used to measure the shear rheological displacement. The displacement measuring device includes a normal displacement measuring device and a horizontal displacement measuring device; the normal displacement measuring device is arranged on the normal pressure loading device, and is used to monitor the normal displacement of the rock sample; the horizontal displacement measuring device is arranged on the second shear box, and is used to monitor the horizontal displacement of the rock sample.
[0036] Compared with the prior art, the present invention at least includes the following beneficial effects: the chemical erosion simulation device for shear rheology test in the embodiment of the present application includes a frame, a first shear box, a second shear box, a shearing device, a chemical erosion device, and a displacement monitoring device. During use, the test piece is set in the first shear box and the second shear box, and the horizontal displacement measuring device and the normal displacement measuring device are placed in the specified position of the shear box. The required solution concentration, that is, the pH value, is set in the industrial control computer, and the flow rate is set. Close the valves of the water inlet pipe and the water outlet pipe 1 of the chemical erosion device, open the valve of the water outlet pipe 2, and start the peristaltic pump of the chemical erosion device at the same time, start to prepare the solution concentration, press the button on the pedestal, and the motor drives the spiral blade to fully stir the solution in the cylinder. After the preparation is completed, the booster water pump starts to work, pumps water into the flow control meter, and after adjusting the flow, pumps it into the shear box through the pipeline connected to the shearing device. The shearing device performs a shear rheology experiment on the shear box, thereby obtaining the rock mechanical parameters under the action of chemical erosion, and then derives the mechanical properties of the rock. After the experiment is completed, the valves of the water inlet pipe and the water outlet pipe 1 are opened, the valve of the water outlet pipe 2 is closed, clean water is injected and waste water is discharged at the same time, the spiral blades are stirred, thereby further cleaning the cylinder, and finally the waste water is harmlessly treated. The application has a high degree of automation, accurately adjusts the pH value, ensures the accuracy of the experiment, and occupies a small space. At the same time, it is accompanied by a cleaning system to reduce manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:
[0038] Figure 1 A schematic structural diagram of a chemical erosion simulation device for shear rheology test according to an embodiment of the present application;
[0039] Figure 2 A schematic structural diagram of a chemical erosion device of a chemical erosion simulation device for shear rheology test according to an embodiment of the present application;
[0040] Figure 3 A partially enlarged schematic structural diagram of a chemical erosion device of a chemical erosion simulation device for shear rheology test provided by an embodiment of the present application;
[0041] Figure 4 An overall side view of a chemical erosion simulation device for shear rheology test according to an embodiment of the present application;
[0042] Figure 5An overall rear view of a chemical erosion simulation device for shear rheology test according to an embodiment of the present application;
[0043] in, Figures 1 to 5 The corresponding relationship between the reference numerals and the component names is as follows:
[0044] 1 normal static load electric cylinder, 2 frame, 3 normal loading pressure head, 4 vertical roller, 5 first shear box, 6 second shear box, 7 moving slide plate, 8 reaction column, 9 sliding roller, 10 frame cross beam, 11 horizontal static load electric cylinder, 12 chemical solution cylinder, 13 peristaltic pump, 14 pH value tester, 15 water pipe valve, 16 water inlet, 17 mixed solution cylinder, 18 round pedestal (with button), 19 water outlet 1, 20 water outlet 2, 21 booster water pump, 22 chemical water pressure controller, 23 connecting pipe (connected to shear box), 24 pedestal, 25 peristaltic pump pipe, 26 convex groove, 27 knob, 28 cover plate. DETAILED DESCRIPTION
[0045] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.
[0046] like Figures 1 to 5As shown, the embodiment of the present application proposes a chemical erosion simulation device for automatic simulation of shear rheology test, including: a frame 2, a first shear box 5 and a second shear box 6, the first shear box 5 is arranged on the second shear box 6, the second shear box 6 is arranged on the frame crossbeam 10, and the rock sample to be tested is used to be arranged inside the first shear box 5 and the second shear box 6; a normal static load electric cylinder 1, the normal static load electric cylinder 1 is arranged at the top center of the frame 2; a vertical roller 4, the vertical roller 4 is used to connect and fix the first shear box 5 and the second shear box 6; a normal loading pressure head 3, the normal loading pressure head 3 is located at the upper center of the first shear box 5; a horizontal static load electric cylinder 11, the horizontal pressure loading device 11 is arranged on one side of the second shear box 6; a reaction column 8, the reaction column 8 is arranged on the other side of the first shear box 5; a chemical solution cylinder 12, the chemical solution cylinder 12 is provided with a groove and a cover plate The convex grooves 26 of 28 form a mortise and tenon fixing structure and are placed on the cover plate 28. A hole is dug on the upper part of the cylinder body with a knob 27 for sealing, and a hole is dug on the side for placing the pump tube of the peristaltic pump 13. The top of the cylinder body is provided with a handle; the peristaltic pump 13, the peristaltic pump 13 has two pump heads for extracting solutions from the two chemical solution cylinders 12 respectively, and injecting them into the mixed solution cylinder 17 through the circular through-hole on the cover plate 28; the cover plate 28, a circular through-groove is dug on the cover plate 28 for placing the end of the pH tester 14, and the cover plate 28 is placed on the mixed solution cylinder 17; the mixed solution cylinder 17, the mixed solution cylinder 17 is provided with a spiral blade for stirring the solution, and is placed in the upper space of the pedestal 24; the booster water pump 21 and the chemical water pressure controller 22 are placed in the bottom space of the pedestal 24; the connecting pipe 23, one end of the connecting pipe 23 is connected to the chemical water pressure controller, and the other end is connected to the shear box.
[0047] Example
[0048] The embodiment of the present application proposes a chemical erosion simulation device for automatically simulating shear rheological tests. During use, the rock sample to be tested is set in the first shear box 5 and the second shear box 6, and then the industrial control computer (used to control the chemical erosion device) is operated to adjust the required solution concentration and the flow rate. The valves of the water inlet 16 and the water outlet 1 (19) of the chemical erosion device are closed, and the valve of the water outlet 2 (20) is opened. At the same time, the peristaltic pump 13 of the chemical erosion device is started to adjust the solution concentration, and the solution is extracted from the two chemical solution cylinders 12 respectively. The button on the circular pedestal 18 is pressed, and the motor drives the spiral blade to fully stir the solution in the mixed solution cylinder 17. After the preparation is completed, the booster pump 21 starts to work, pumps water into the flow control meter, and after adjusting the flow, it is pumped into the shear box through the pipeline connected to the pressure shear device. The pressure shear device performs a shear rheological experiment on the shear box, obtains the displacement through the displacement measuring device, thereby obtaining the rock mechanical parameters under the action of chemical erosion, and then obtains the mechanical properties of the rock. After the experiment is completed, the valves of the water inlet 16 and the water outlet 1 (19) are opened, and the valve of the water outlet 2 (20) is closed. Clean water is injected and waste water is discharged at the same time. The spiral blades are stirred to further clean the mixed solution tank 17, and finally the waste water is harmlessly treated.
[0049] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0050] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying 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 unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.
[0051] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A chemical erosion simulation device for automatic simulation of shear rheology test, characterized in that: include: frame; a first shearing box and a second shearing box, wherein the first shearing box is arranged on the second shearing box, the second shearing box is arranged on the frame, and the piece to be tested is arranged between the first shearing box and the second shearing box; The shear box where the sample is located is provided with a water pipe opening connected to the chemical etching device; A compression shear device, which carries a shear box and performs a rheological shear test on the shear box; The chemical etching device is arranged beside the pressing and shearing device and is connected to the shear box of the pressing and shearing device through a pipeline by a water pump. Industrial computer, connected to pH tester and peristaltic pump.
2. The chemical erosion simulation device for shear rheology test according to claim 1, characterized in that: The device comprises two solution glass cylinders, a pH value tester, a peristaltic pump, a mixed solution cylinder cover plate, a mixed solution cylinder, a pedestal, pipelines, a booster water pump, and a chemical water pressure controller. The chemical solution cylinder has a hole on the upper plane, equipped with a stopcock for adding solution reagents; a handle is attached to the upper plane; a groove is provided on the side plane to clamp with the convex groove on the cover plate of the mixed solution cylinder; and a pump pipe connection port is provided on the side to connect with the pump pipe of the peristaltic pump; The pH value tester has a bottom end for the tester to contact the solution, a long tube in the middle is connected to fully contact the solution, and a circular pedestal at the top and a circular notch of the mixed solution cylinder cover plate form a mortise and tenon structure; The peristaltic pump adopts two pump heads, one pump tube is connected to the pump tube connection ports of the two solution glass cylinders respectively, and the other pump tube is connected to the mixed solution cylinder; the peristaltic pump is equipped with a controller to accurately adjust the flow rate; The mixed solution cylinder cover plate is provided with a T-shaped convex groove which can be clamped with the grooves of the two solution glass cylinders to form a fixed structure; a circular concave hole is dug on the cover plate, which passes through the cover plate and is used to place a pH value tester; two pump pipe ports are provided on the cover plate, which pass through the cover plate and are used to connect pump pipes; four cylindrical convex columns are provided on the lower plane of the cover plate; The upper plane of the mixed solution cylinder is provided with four grooves, which are connected to the cover plate and are used for fixing and preventing seepage; The pedestal serves as a support; The space under the pedestal houses the water pump and chemical water pressure controller; The booster pump pressurizes the solution and pumps it into the chemical water pressure controller The chemical water pressure controller controls the water pressure and flow rate to flow water into the shear box.
3. The chemical erosion simulation device for shear rheology test according to claim 2, characterized in that: The mixed solution tank also includes: a water inlet pipeline, a water outlet pipeline, and a spiral blade. The water inlet pipeline is arranged on the left cylindrical surface of the mixed solution tank and is used to pass clean water into the tank; The water outlet pipes are provided with two water outlet pipes arranged at the bottom of the cylinder, the water outlet pipe 1 is connected to the waste tank, and the water outlet pipe 2 is connected to the water pump; The spiral blade is connected to the bottom of the cylinder and can be connected to the motor in the circular boss to stir the solution.
4. The chemical erosion simulation device for shear rheology test according to claim 2, characterized in that: The pedestal also includes: A circular boss is provided on the upper plane of the pedestal, the center of which is hollowed out, and a motor is provided inside the boss for connecting the spiral blades in the cylinder.
5. The chemical erosion simulation device for shear rheology test according to claim 1, characterized in that: The pressing and shearing device also includes: A reaction column, disposed on the protective frame, and used to abut against the first shear box; A horizontal static load electric cylinder, arranged on the protection frame, and used for pushing the second shear box to move; A movable slide, disposed on the second transmission assembly, and capable of moving relative to the first shear box through the second transmission assembly; A positioning member, arranged on the movable slide plate; A normal static load electric cylinder, arranged on the protection frame, and used for abutting against the positioning member; A displacement measuring device is arranged between the compression and shearing device and the shearing box body, and is used to measure the shear rheological displacement.