Slurry pump impeller wear simulation experiment table

Abstract

The utility model discloses a slurry pump impeller wear simulation experiment table, which belongs to the technical field of slurry pumps and comprises an experiment table, a storage mechanism and an experiment mechanism. The storage mechanism comprises a water tank, a stirring structure, a first guide pipe and a second guide pipe, the stirring structure is arranged in the water tank and comprises a stirring shaft and a plurality of stirrers arranged on the stirring shaft, the stirrers stir in the water tank under the condition that the stirring shaft rotates, the first end of the first guide pipe is communicated with the water tank, and the first end of the second guide pipe is communicated with the water tank; the experiment mechanism comprises a mounting table, a test pump and a transmission shaft, the test pump is of a slurry pump structure which is formed by matching a first pump body and a second pump body and is provided with a pump cavity, the first pump body is detachably connected with the second pump body, the transmission shaft is used for being connected with a to-be-tested slurry pump impeller arranged in the pump cavity, and the second end of the first guide pipe is communicated with the test pump; the second end of the second conduit is communicated with the test pump. And the complex working conditions of the slurry pump impeller can be truly simulated.

Description

Technical Field

[0001] This utility model relates to the field of slurry pump technology, specifically to a slurry pump impeller wear simulation test bench. Background Technology

[0002] Slurry pumps are key equipment in industries such as mining, metallurgy, power, and coal for conveying high-concentration slurries containing solid particles. During long-term operation, their impellers are subjected to scouring and impact from these solid particles, leading to severe wear. Impeller wear not only reduces the pump's efficiency and increases energy consumption but can also cause equipment failure, disrupting production continuity and resulting in significant economic losses.

[0003] Existing simulations of slurry pump impeller wear mostly rely on theoretical or numerical models. In the modeling process, to simplify calculations, a large number of slurry characteristics, particle trajectories, impeller structures, and wear mechanisms are typically simplified and assumed. In actual operation, the working environment of slurry pumps is complex and variable. Parameters such as slurry concentration, flow rate, temperature, and particle hardness change with time and space. Model simulations are usually difficult to realistically simulate these complex working conditions.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a slurry pump impeller wear simulation test bench in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this invention is to provide a slurry pump impeller wear simulation test bench to solve the problem mentioned in the background art that most existing slurry pump impeller wear simulations are carried out by establishing theoretical models or numerical models, and model simulations are usually difficult to realistically simulate these complex working conditions.

[0006] This utility model embodiment provides a slurry pump impeller wear simulation test bench, including a test table, a storage mechanism, and a test mechanism. The storage mechanism is located at the bottom of the test table, and the test mechanism is located at the top of the test table.

[0007] The storage mechanism includes a water tank, a stirring structure, a first conduit, and a second conduit. The stirring structure is disposed inside the water tank and includes a stirring shaft and a plurality of stirrers disposed on the stirring shaft. When the stirring shaft rotates, the stirrers agitate the water tank. The first end of the first conduit is connected to the water tank, and the first end of the second conduit is connected to the water tank.

[0008] The experimental setup includes a mounting platform, a test pump, and a drive shaft. The test pump is mounted on the experimental table via the mounting platform. The test pump is a slurry pump structure with a pump chamber formed by the cooperation of a first pump body and a second pump body. The first pump body and the second pump body are detachably connected. The drive shaft is disposed in the pump chamber and is detachably connected to the test pump. The drive shaft is used to connect to the impeller of the slurry pump to be tested disposed in the pump chamber. The second end of the first conduit is connected to the test pump, and the second end of the second conduit is connected to the test pump.

[0009] Furthermore, it also includes a control mechanism, the storage mechanism includes a first drive motor, the experimental mechanism includes a second drive motor, the control mechanism is electrically connected to the first drive motor and the second drive motor respectively, the output shaft of the first drive motor is connected to the stirring shaft, and the output shaft of the second drive motor is connected to the transmission shaft.

[0010] Furthermore, the experimental mechanism also includes a Hall sensor and a magnet block. The Hall sensor is communicatively connected to the control mechanism, the magnet block is disposed on the transmission shaft, and the Hall sensor is disposed on the housing surface of the second drive motor, with the sensing area of ​​the Hall sensor facing the magnet block.

[0011] Furthermore, the experimental mechanism also includes a temperature sensor and a water level sensor, which are respectively connected to the control mechanism and are both installed in the water tank.

[0012] Furthermore, the storage mechanism also includes a heating plate, which is electrically connected to the control mechanism and is disposed in the water tank.

[0013] Furthermore, the control mechanism includes a turntable, a support rod, and a touch panel. The bottom end of the turntable is connected to one side of the upper end of the experimental table, and the top end of the turntable is rotatably connected to the touch panel through the support rod.

[0014] Furthermore, the water tank is provided with a water inlet and a water outlet, with the water inlet located at the top of the water tank and the water outlet located at the bottom of the water tank.

[0015] Furthermore, the bottom of the water tank is provided with an inclined plate that extends from a first side to a second side. The first side and the second side are two opposite sides of the water tank. The height of the inclined plate increases from the first side to the second side. The drain outlet is located at the bottom of the water tank near the first side.

[0016] Furthermore, the experimental table is provided with a sliding groove, and the mounting platform is disposed in the sliding groove.

[0017] Furthermore, a tool rack is also provided on the experimental table.

[0018] The beneficial effects of this invention are as follows: the agitation structure in the storage mechanism uniformly stirs the abrasive slurry, and the closed-loop circulation conduit enables continuous scouring of the slurry. Combined with the detachable test pump and drive shaft in the experimental mechanism, the impeller can be conveniently installed and fixed. This can accurately simulate the real working environment of the slurry pump impeller in abrasive media, ensuring that the wear medium is uniform and stable and the circulation process is continuous and controllable. This effectively improves the realism of the wear simulation experiment and provides a scientific experimental basis for further impeller material selection and structural optimization. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is one of the structural schematic diagrams of the slurry pump impeller wear simulation test bench disclosed in the embodiments of this utility model;

[0021] Figure 2 This is the second schematic diagram of the structure of the slurry pump impeller wear simulation test bench disclosed in this embodiment of the present utility model;

[0022] Figure 3 This is the third schematic diagram of the structure of the slurry pump impeller wear simulation test bench disclosed in this embodiment of the present utility model;

[0023] Figure 4 This is the fourth schematic diagram of the structure of the slurry pump impeller wear simulation test bench disclosed in this utility model embodiment;

[0024] Figure 5 This is the fifth schematic diagram of the structure of the slurry pump impeller wear simulation test bench disclosed in this utility model embodiment;

[0025] Figure 6 This is the sixth schematic diagram of the slurry pump impeller wear simulation test bench disclosed in this utility model embodiment.

[0026] In the diagram: 10. Experimental table; 101. Slide; 102. Limiting structure; 20. Storage mechanism; 201. Water tank; 2011. Water inlet; 2012. Drain; 2013. Inclined plate; 202. Stirring structure; 2021. Stirring shaft; 2022. Stirrer; 203. First conduit; 204. Second conduit; 205. First drive motor; 206. Heating plate; 30. Experimental mechanism; 301. Mounting platform; 302. Test pump; 303. Drive shaft; 304. Second drive motor; 305. Hall sensor; 306. Magnet block; 307. Temperature sensor; 308. Water level sensor; 40. Control mechanism; 401. Turntable; 402. Support rod; 403. Touch panel; 50. Tool rack. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0028] The terms "first," "second," etc., used in the specification and claims of this utility model are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such usage can be interchanged where appropriate so that embodiments of this utility model can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, the first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] like Figures 1 to 6 As shown, this utility model embodiment provides a slurry pump impeller wear simulation test bench, including a test table 10, a storage mechanism 20 and a test mechanism 30. The storage mechanism 20 is located at the bottom of the test table 10 and the test mechanism 30 is located at the top of the test table 10.

[0030] The storage mechanism 20 includes a water tank 201, a stirring structure 202, a first conduit 203, and a second conduit 204. The stirring structure 202 is disposed inside the water tank 201 and includes a stirring shaft 2021 and a plurality of stirrers 2022 disposed on the stirring shaft 2021. When the stirring shaft 2021 rotates, the stirrers 2022 stir in the water tank 201. The first end of the first conduit 203 is connected to the water tank 201, and the first end of the second conduit 204 is connected to the water tank 201.

[0031] The experimental apparatus 30 includes a mounting platform 301, a test pump 302, and a drive shaft 303. The test pump 302 is mounted on the experimental table 10 via the mounting platform 301. The test pump 302 is a slurry pump structure with a pump chamber formed by the cooperation of a first pump body and a second pump body. The first pump body and the second pump body are detachably connected. The drive shaft 303 is located in the pump chamber and is detachably connected to the test pump 302. The drive shaft 303 is used to connect to the impeller of the slurry pump to be tested located in the pump chamber. The second end of the first conduit 203 is connected to the test pump 302, and the second end of the second conduit 204 is connected to the test pump 302.

[0032] In this embodiment of the invention, liquid is injected into the water tank 201, and abrasive (such as sand, ore particles, etc.) is added. The type, particle size, and concentration of the abrasive are proportioned according to the actual slurry environment (such as mining, metallurgical, etc.) to simulate the real working environment of the slurry pump impeller. The impeller of the slurry pump to be tested is fixed in the pump chamber of the test pump 302 via the drive shaft 303. The first pump body and the second pump body of the test pump 302 are detachably connected, and the drive shaft 303 is detachably connected to the test pump 302 to facilitate quick replacement of the impeller of the slurry pump to be tested. The first end of the first conduit 203 is connected to the water tank 201, and the second end of the first conduit 203 is connected to the inlet of the test pump 302, for conveying the uniformly stirred abrasive slurry to the pump chamber; the first end of the second conduit 204 is connected to the water tank 201, and the second end of the second conduit 204 is connected to the outlet of the test pump, for returning the slurry discharged from the pump chamber to the water tank, forming a closed loop. During the experiment, the stirring shaft 2021 can be driven to rotate, causing the stirrer 2022 to agitate within the water tank. This ensures thorough mixing of the abrasive and liquid, maintaining their suspension and preventing sedimentation, thus guaranteeing the uniformity of the slurry entering the pump chamber. An external power source (such as a motor, not shown in the diagram) drives the drive shaft 303 of the test pump 302 to rotate, causing the impeller of the slurry pump under test to rotate at high speed. As the impeller rotates, a negative pressure is created within the test pump 302, drawing the abrasive slurry from the water tank 201 through the first conduit 203. After the impeller performs work, the slurry returns to the water tank 201 through the second conduit 204, achieving continuous slurry circulation. This simulates the wear of the impeller of the slurry pump under real-world conditions, enhancing the realism of the simulation experiment.

[0033] In this way, the experimental table 10 provides support and operating platform for the entire experimental platform. The abrasive slurry is uniformly stirred by the stirring structure 202 in the storage mechanism 20, and the slurry is continuously flushed by the closed circulation conduit. Combined with the detachable test pump 302 and drive shaft 303 in the experimental mechanism 30, the impeller can be conveniently installed and fixed. It can accurately simulate the real working environment of the slurry pump impeller in the abrasive medium, ensuring that the wear medium is uniform and stable and the circulation process is continuous and controllable. This effectively improves the realism of the wear simulation experiment and provides a scientific experimental basis for further impeller material selection and structural optimization.

[0034] Optionally, it also includes a control mechanism 40, a storage mechanism 20 including a first drive motor 205, and an experimental mechanism 30 including a second drive motor 304. The control mechanism 40 is electrically connected to the first drive motor 205 and the second drive motor 304 respectively. The output shaft of the first drive motor 205 is connected to the stirring shaft 2021, and the output shaft of the second drive motor 304 is connected to the transmission shaft 303.

[0035] In this example, the control mechanism 40 can control the operation of the first drive motor 205 and the second drive motor 304. During the experiment, the operator can set the speed and stirring time of the stirring shaft 2021 through the control mechanism 40, so that the first drive motor 205 drives the stirrer 2022 to fully mix the abrasive and liquid in the water tank 201 and maintain a suspended state. At the same time, the control mechanism 40 adjusts the speed of the second drive motor 304 according to the requirements of the simulated working conditions, driving the transmission shaft 303 to drive the impeller under test to rotate at the target speed, so that the abrasive slurry is sucked into the pump chamber through the first conduit 203, and after the impeller does work, it flows back to the water tank through the second conduit 204, forming a closed loop. The control mechanism 40 can precisely coordinate the start-stop sequence, speed parameters and running time of the two motors to realize the automated control of the stirring uniformity and impeller operation conditions, ensuring that the wear simulation experiment runs stably under the preset parameters, improving the controllability and data consistency of the experimental process, thereby improving the realism of the wear simulation experiment.

[0036] Optionally, the experimental mechanism 30 also includes a Hall sensor 305 and a magnet block 306. The Hall sensor 305 is communicatively connected to the control mechanism 40. The magnet block 306 is mounted on the transmission shaft 303. The Hall sensor 305 is mounted on the housing surface of the second drive motor 304, and the sensing area of ​​the Hall sensor 305 faces the magnet block 306.

[0037] In this example, when the experiment begins, the second drive motor 304 drives the transmission shaft 303 to rotate, and the magnet block 306 mounted on the transmission shaft 303 rotates accordingly. A Hall sensor 305 is mounted on the surface of the housing of the second drive motor 304 with its sensing area facing the magnet block 306. When the magnet block 306 rotates, it periodically passes through the sensing area of ​​the Hall sensor 305, causing the Hall sensor 305 to generate a pulse signal. The Hall sensor 305 is communicatively connected to the control mechanism 40, transmitting the generated pulse signal to the control mechanism 40. The control mechanism 40 calculates the actual rotational speed of the transmission shaft 303 based on the frequency of the pulse signal. If there is a deviation between the actual rotational speed and the preset rotational speed, the control mechanism 40 can adjust the second drive motor 304 according to the deviation. For example, when the actual rotational speed is lower than the preset speed, the control mechanism 40 increases the power supply to the second drive motor 304 to increase the speed; when the actual rotational speed is higher than the preset speed, the control mechanism 40 decreases the power supply to decrease the speed, thereby achieving real-time monitoring and precise control of the rotational speed of the transmission shaft 303. This further enhances the realism of the wear simulation experiment.

[0038] Optionally, the experimental mechanism 30 also includes a temperature sensor 307 and a water level sensor 308, which are respectively connected to the control mechanism 40 in communication. Both the temperature sensor 307 and the water level sensor 308 are installed in the water tank 201.

[0039] In this example, temperature sensor 307 and water level sensor 308 are installed in water tank 201 and are communicatively connected to control mechanism 40. Temperature sensor 307 monitors the temperature of the wear medium in water tank 201 in real time and transmits it to control mechanism 40. When the temperature exceeds the preset threshold (e.g., due to stirring or circulating friction), control mechanism 40 can link cooling or heating devices to adjust the water temperature to ensure the medium temperature is stable and avoid the interference of temperature changes on impeller material performance and wear patterns. Water level sensor 308 detects the water level in the tank in real time. When the water level is lower than the set value due to evaporation, leakage, or circulation loss, control mechanism 40 can trigger a water replenishment prompt or automatic water replenishment function to maintain the stability of the slurry volume in the circulation loop and prevent the test pump from running dry or the circulation flow from fluctuating due to insufficient water level. This ensures that the wear experiment can be carried out continuously under constant medium temperature and water level conditions, effectively improving the controllability of the experimental environment and the accuracy of the data results, and further enhancing the realism of the wear simulation experiment.

[0040] Optionally, the storage mechanism 20 also includes a heating plate 206, which is electrically connected to the control mechanism 40 and is disposed in the water tank 201.

[0041] In this example, the heating plate 206 is electrically connected to the control mechanism 40 and is installed inside the water tank 201. Based on the real-time monitoring of the medium temperature by the temperature sensor 307, the control mechanism 40 automatically adjusts the power of the heating plate 206 according to preset experimental conditions: when the temperature sensor detects that the temperature of the wear medium in the water tank is lower than the target value, the control mechanism 40 triggers the heating plate 206 to heat up; conversely, it links the cooling device to cool down, forming a closed-loop temperature control system. This setting can accurately simulate the temperature changes that may occur in the actual slurry environment (such as the thermal wear characteristics of materials under high-temperature conditions), ensuring that the wear medium maintains constant or dynamically changing temperature conditions during the experiment, avoiding differences in impeller material performance and deviations in wear patterns caused by temperature fluctuations, further improving the matching degree between the experimental environment and real working conditions, providing controllable experimental conditions for studying the influence of temperature on impeller wear, and enhancing the comprehensiveness and reliability of experimental data.

[0042] Optionally, the control mechanism 40 includes a turntable 401, a support rod 402, and a touch panel 403. The bottom end of the turntable 401 is connected to one side of the upper end of the experimental table 10, and the top end of the turntable 401 is rotatably connected to the touch panel 403 through the support rod 402.

[0043] In this example, the bottom of the turntable 401 of the control mechanism 40 is connected to the experimental table 10, and the top is rotatably connected to the touch panel 403 via the support rod 402. The turntable 401 allows the touch panel 403 to rotate horizontally, and the support rod 402 allows the touch panel 403 to be angled, making it convenient for operators to operate the touch panel 403 from different angles and positions, thus improving the ease of operation.

[0044] Optionally, the water tank 201 is provided with an inlet 2011 and a drain outlet 2012, with the inlet 2011 located at the top of the water tank 201 and the drain outlet 2012 located at the bottom of the water tank 201.

[0045] In this example, the water inlet 2011 on the water tank 201 is located at the top, which makes it easy to add liquid into the water tank 201; the drain outlet 2012 is located at the bottom, which makes it easy to drain the liquid from the water tank 201. The liquid replacement and cleaning work can be completed quickly before and after the experiment, improving the efficiency of the experiment.

[0046] Optionally, the bottom of the water tank 201 is provided with an inclined plate 2013, which extends from the first side to the second side. The first side and the second side are two opposite sides of the water tank 201. The height of the inclined plate 2013 increases from the first side to the second side, and the drain outlet 2012 is located at the bottom of the water tank 201 near the first side.

[0047] In this example, the inlet 2011 is located at the top of the water tank 201 for quick liquid injection or replenishment of abrasive media. The drain outlet 2012 is located at the bottom and near the lower part (first side) of the inclined plate 2013. Combined with the inclined plate 2013's increasing height from the first side to the second side, the abrasive particles deposited in the water tank can automatically slide down the inclined plate 2013 to the vicinity of the drain outlet under the action of gravity. This facilitates the rapid drainage of the abrasive-containing slurry and the cleaning of residual impurities after the experiment, avoiding the tediousness and residual pollution of manual cleaning. At the same time, the inclined plate 2013 reduces the dead corners of liquid accumulation at the bottom of the water tank, making the slurry drainage more thorough, ensuring the cleanliness of the water tank before each experiment, avoiding interference from the media composition of different batches of experiments, and improving experimental efficiency.

[0048] Optionally, the experimental table 10 is provided with a slide groove 101, and the mounting platform 301 is disposed in the slide groove 101.

[0049] In this example, a sliding groove 101 is provided on the experimental table 10, and the mounting platform 301 is set in it. By sliding the mounting platform 301 in the sliding groove 101, the horizontal or vertical position of the test pump 302 on the experimental table can be flexibly adjusted, which facilitates the precise alignment of the first conduit 203, the second conduit 204 and the connection of the test pump inlet and outlet, and avoids conduit twisting or leakage caused by positional deviation. At the same time, the sliding structure supports quick disassembly or replacement of the test pump and the impeller to be tested. When adjusting experimental parameters (such as replacing impellers of different specifications or calibrating the coaxiality of the drive shaft), there is no need to disassemble the entire equipment. Only the sliding mounting platform is needed to realize the convenient disassembly and assembly of components and position calibration, which greatly improves the efficiency of experimental preparation.

[0050] In addition, the slide 101 can be used with the limiting structure 102 to fix the mounting platform 301, ensuring that the test pump remains stable during the experiment and avoiding the impact of vibration or displacement on the accuracy of wear simulation. It takes into account both operational flexibility and structural stability, and provides hardware support for the efficient conduct of experiments and data reliability.

[0051] The limiting structure 102 includes a T-bolt and a locking cap that is threadedly connected to the T-bolt. One end of the T-bolt is set in the slide groove 101, and the other end extends to the mounting platform 301 and is threadedly connected to the locking cap set on the upper surface of the mounting platform 301.

[0052] Optionally, a tool rack 50 is also provided on the experimental table 10.

[0053] In this example, a tool rack 50 is installed on the experimental table 10. This rack allows for the categorized storage of disassembly tools (such as wrenches and screwdrivers), measuring instruments (such as micrometers and scanners), and spare parts (such as sealing rings and impeller fasteners) required during the experiment. This avoids wasting time due to scattered tools or temporary searching, improving the convenience and standardization of experimental operations. Simultaneously, the tool rack 50 makes efficient use of the experimental table's three-dimensional space, keeping the desktop tidy and reducing operational errors or safety hazards caused by cluttered tools (such as component collisions or cable tangles). It provides an orderly operating environment for experimental personnel, ensuring quick access to tools during impeller installation, disassembly, and wear detection, effectively improving experimental efficiency and workflow smoothness.

[0054] Specifically, the working principle of this slurry pump impeller wear simulation test bench is as follows: During the slurry pump impeller wear simulation experiment, the operator first adds the required liquid and abrasive to the water tank 201 through the inlet 2011 at the top of the water tank 201. Then, the first drive motor 205 is activated via the touch panel 403 of the control mechanism 40. The first drive motor 205 drives the stirring shaft 2021 to rotate, and the stirrer 2022 on the stirring shaft 2021 stirs the water tank 201, ensuring thorough mixing of the liquid and abrasive within the water tank 201. During the installation of the experimental components, due to the test pump 302... The first and second pump bodies are detachably connected. The pump bodies can be opened, and the impeller of the slurry pump to be tested can be mounted on the drive shaft 303. The drive shaft 303 is then installed in the pump chamber, and the first conduit 203 and the second conduit 204 are connected, connecting the water tank 201 to the test pump 302. Simultaneously, the mounting platform 301 can be slidably adjusted using the slide groove 101 on the experimental table 10 to suit experimental requirements. At the start of the experiment, the operator activates the second drive motor 304 via the control mechanism 40. The second drive motor 304 drives the drive shaft 303 to rotate, thereby driving the impeller of the slurry pump to be tested to rotate. The mixed liquid flows from the water tank 201 into the test pump 302 through the first conduit 203. Under the action of the impeller, the liquid circulates in the pump chamber, producing a scouring effect on the impeller, simulating the wear and tear of the slurry pump in actual operation. Afterward, the liquid flows back to the water tank 201 through the second conduit 204, forming a cycle. During the experiment, the Hall sensor 305 senses the change in the magnetic field of the magnet block 306 on the drive shaft 303, monitors the rotational speed of the drive shaft 303 in real time, and transmits the data to the control mechanism 40, so that the operator can monitor the rotation of the impeller. The temperature sensor 307 monitors the water tank 201 in real time. The water level sensor 308 monitors the water level in tank 201 in real time, allowing operators to adjust experimental conditions promptly via control mechanism 40 based on this data. If it's necessary to simulate impeller wear under different temperature conditions, control mechanism 40 can be used to heat the liquid in tank 201 via heating plate 206. After the experiment, the liquid can be drained from tank 201 through drain outlet 2012 at the bottom. Because of the inclined plate 2013 at the bottom of tank 201, the liquid flows along the inclined plate to drain outlet 2012, reducing liquid residue. Furthermore, the tool rack 50 on the experimental table 10 can hold the necessary tools for easy access and organization by the operator.In this way, the abrasive slurry is uniformly stirred by the stirring structure 202 in the storage mechanism 20, and the slurry is continuously flushed by the closed circulation conduit. Combined with the detachable test pump 302 and drive shaft 303 in the experimental mechanism 30, the impeller can be conveniently installed and fixed. This can accurately simulate the real working environment of the slurry pump impeller in the abrasive medium, ensuring that the wear medium is uniform and stable and the circulation process is continuous and controllable. This effectively improves the realism of the wear simulation experiment and provides a scientific experimental basis for further impeller material selection and structural optimization.

[0055] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this utility model is not limited to performing functions in the discussed order, but may also include performing functions substantially simultaneously or in the reverse order, for example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0056] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A slurry pump impeller wear simulation test bench, characterized in that, It includes an experimental table (10), a storage mechanism (20) and an experimental mechanism (30), wherein the storage mechanism (20) is located at the bottom of the experimental table (10) and the experimental mechanism (30) is located at the top of the experimental table (10); The storage mechanism (20) includes a water tank (201), a stirring structure (202), a first conduit (203), and a second conduit (204). The stirring structure (202) is disposed inside the water tank (201). The stirring structure (202) includes a stirring shaft (2021) and a plurality of stirrers (2022) disposed on the stirring shaft (2021). When the stirring shaft (2021) rotates, the stirrers (2022) stir in the water tank (201). The first end of the first conduit (203) is connected to the water tank (201), and the first end of the second conduit (204) is connected to the water tank (201). The experimental mechanism (30) includes a mounting platform (301), a test pump (302), and a drive shaft (303). The test pump (302) is mounted on the experimental table (10) via the mounting platform (301). The test pump (302) is a slurry pump structure with a pump chamber formed by the cooperation of a first pump body and a second pump body. The first pump body and the second pump body are detachably connected. The drive shaft (303) is disposed in the pump chamber and is detachably connected to the test pump (302). The drive shaft (303) is used to connect to the impeller of the slurry pump to be tested disposed in the pump chamber. The second end of the first conduit (203) is connected to the test pump (302), and the second end of the second conduit (204) is connected to the test pump (302).

2. The slurry pump impeller wear simulation test bench according to claim 1, characterized in that, It also includes a control mechanism (40), the storage mechanism (20) further includes a first drive motor (205), the experimental mechanism (30) further includes a second drive motor (304), the control mechanism (40) is electrically connected to the first drive motor (205) and the second drive motor (304) respectively, the output shaft of the first drive motor (205) is connected to the stirring shaft (2021), and the output shaft of the second drive motor (304) is connected to the transmission shaft (303).

3. The slurry pump impeller wear simulation test bench according to claim 2, characterized in that, The experimental mechanism (30) further includes a Hall sensor (305) and a magnet block (306). The Hall sensor (305) is communicatively connected to the control mechanism (40). The magnet block (306) is disposed on the transmission shaft (303). The Hall sensor (305) is disposed on the outer surface of the housing of the second drive motor (304), and the sensing area of ​​the Hall sensor (305) faces the magnet block (306).

4. The slurry pump impeller wear simulation test bench according to claim 2, characterized in that, The experimental mechanism (30) also includes a temperature sensor (307) and a water level sensor (308), which are respectively connected to the control mechanism (40) in communication. Both the temperature sensor (307) and the water level sensor (308) are located in the water tank (201).

5. The slurry pump impeller wear simulation test bench according to claim 2, characterized in that, The storage mechanism (20) also includes a heating plate (206), which is electrically connected to the control mechanism (40) and is disposed in the water tank (201).

6. The slurry pump impeller wear simulation test bench according to any one of claims 2 to 5, characterized in that, The control mechanism (40) includes a turntable (401), a support rod (402), and a touch panel (403). The bottom end of the turntable (401) is connected to one side of the upper end of the experimental table (10), and the top end of the turntable (401) is rotatably connected to the touch panel (403) through the support rod (402).

7. The slurry pump impeller wear simulation test bench according to claim 1, characterized in that, The water tank (201) is provided with an inlet (2011) and a drain (2012). The inlet (2011) is located at the top of the water tank (201), and the drain (2012) is located at the bottom of the water tank (201).

8. The slurry pump impeller wear simulation test bench according to claim 7, characterized in that, The bottom of the water tank (201) is provided with an inclined plate (2013), which extends from a first side to a second side. The first side and the second side are two opposite sides of the water tank (201). The height of the inclined plate (2013) increases from the first side to the second side. The drain outlet (2012) is located at the bottom of the water tank (201) near the first side.

9. The slurry pump impeller wear simulation test bench according to claim 1, characterized in that, The experimental table (10) is provided with a sliding groove (101), and the mounting platform (301) is disposed in the sliding groove (101).

10. The slurry pump impeller wear simulation test bench according to claim 1, characterized in that, The experimental table (10) is also equipped with a tool rack (50).

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