Coal dust adhering material analysis device for underground ventilation fans in coal mines

Abstract

This utility model discloses an analysis device for coal dust adhering materials in underground ventilation fans of coal mines, comprising a horizontal block, a handle fixed to the lower end of the horizontal block, an L-shaped block fixed to the lower end of the horizontal block, a first threaded post fixed to the lower end of the horizontal block, a first internal threaded cylinder threaded onto the side wall of the first threaded post, a mixing box fixed to the side wall of the first internal threaded cylinder, an installation mechanism installed on the upper end of the mixing box, a first drive mechanism disposed inside the horizontal block, a rotating rod fixed to the output end of the first drive mechanism, a third internal threaded cylinder fixed to the end of the rotating rod away from the horizontal block, a second threaded post threaded onto the inner wall of the third internal threaded cylinder, and a first installation cylinder threaded onto the side wall of the second threaded post. This utility model has the advantages of efficient and accurate sampling, integrated sampling and mixing functions, rapid and uniform mixing, pollution prevention, and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of safety testing technology for underground ventilation equipment in coal mines, specifically to a device for analyzing coal dust adhering materials on underground ventilation fans in coal mines. Background Technology

[0002] Coal mine ventilation systems are key facilities for ensuring safe production. Among them, the ventilation fan is the core equipment, and its operating status directly affects the underground air quality and gas dilution effect. During long-term operation, coal dust particles easily adhere to the surface of the fan blades. These deposits not only change the aerodynamic characteristics of the blades, reduce ventilation efficiency, and increase energy consumption, but may also cause safety hazards due to static electricity accumulation caused by friction. In addition, the compositional analysis of the deposited coal dust is of great guiding significance for assessing the risk of dust explosion, preventing occupational hazards, and formulating maintenance strategies for ventilation equipment.

[0003] Currently, the sampling and analysis of coal dust on the surface of ventilation fan blades usually relies on manual operation. Common practices include using brushes to scrape, tape to stick, or simple adsorption tools to collect samples, and then sending the obtained samples to the laboratory for component analysis. However, manual scraping or adsorption is extremely inconvenient, has low sampling efficiency, and makes it difficult to ensure the accuracy and consistency of the sampling location. Secondly, existing sampling tools lack targeted design and are difficult to effectively scrape off firmly attached coal dust. After sampling, component analysis requires mixing the coal dust sample with water (or other solvents) to carry out subsequent physicochemical tests. However, existing technologies lack integrated rapid mixing devices, and operators need to manually complete the mixing using beakers, stirring rods, and other containers. The steps are cumbersome, time-consuming, and prone to introducing external contamination, affecting the accuracy of the test results.

[0004] Therefore, the existing technology lacks a dedicated analytical device that can quickly and effectively scrape or adsorb coal dust from the fan blades and quickly and uniformly mix the sampled coal dust components with water for immediate detection. This has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide an analysis device for coal dust adhering materials in underground ventilation fans of coal mines. It has the advantages of efficient and accurate sampling, integrated sampling and mixing functions, rapid and uniform mixing, pollution prevention and convenient operation, and solves the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A coal dust adhering material analysis device for underground ventilation fans in coal mines includes a horizontal block, a handle fixed to the lower end of the horizontal block, an L-shaped block fixed to the lower end of the horizontal block, a first threaded column fixed to the lower end of the horizontal block, a first internal threaded cylinder threaded to the side wall of the first threaded column, a mixing box fixed to the side wall of the first internal threaded cylinder, an installation mechanism installed at the upper end of the mixing box, a first drive mechanism disposed inside the horizontal block, a rotating rod fixed to the output end of the first drive mechanism, a third internal threaded cylinder fixed to the end of the rotating rod away from the horizontal block, a second threaded column threaded to the inner wall of the third internal threaded cylinder, and a first installation cylinder threaded to the side wall of the second threaded column.

[0008] A sampling mechanism is provided on the side wall of the first mounting cylinder;

[0009] A water quality analyzer is provided on the side wall of the handle. A detection port is fixed on the L-shaped block. A detection groove for detecting water quality is opened at the upper end of the detection port. A first storage battery is fixed at the lower end of the L-shaped block.

[0010] The mixing box is equipped with a water outlet mechanism, and a drive box is fixedly connected to the lower end of the mixing box. A second drive mechanism is provided on the inner wall of the drive box, and a mixing mechanism is provided inside the mixing box. The second drive mechanism is used to drive the mixing mechanism.

[0011] Preferably, the upper end of the mixing box is provided with a threaded groove, and the installation mechanism includes an installation cover threaded onto the inner wall of the threaded groove, a handle fixed to the upper end of the installation cover, and a second internal threaded cylinder fixed to the center of the upper end of the installation cover. The inner wall of the second internal threaded cylinder is adapted to the side wall of the first installation cylinder.

[0012] It is worth noting that the installation mechanism enables the quick sealing and opening of the mixing box through threaded connection, the handle design facilitates manual operation by the operator, and the compatibility between the second internal threaded cylinder and the first installation cylinder makes it easy for the first installation cylinder to be quickly installed on the inner wall of the second internal threaded cylinder.

[0013] Preferably, a groove is provided inside the horizontal block, and the first driving mechanism includes a first motor body fixed to the inner wall of the groove. The output shaft of the first motor body is fixed to one end of the rotating rod near the center of the horizontal block, and a first motor button switch is provided at one end of the handle near the mixing box. The first motor button switch and the first motor body are electrically connected.

[0014] It is worth noting that the first drive mechanism adopts the first motor body drive method, which provides stable and reliable power output, and realizes convenient control through the first motor button switch.

[0015] Preferably, the water outlet mechanism includes a liquid outlet pipe that is fixed to the side wall of the mixing box and a solenoid valve disposed on the liquid outlet pipe.

[0016] It is worth noting that the water outlet mechanism controls the opening and closing of the outlet pipe through a solenoid valve, which facilitates the discharge of liquid after stirring.

[0017] Preferably, the second drive mechanism includes a second motor body, a second battery, and a controller fixed to the bottom surface of the inner wall of the drive box, and both the second motor body and the second battery are electrically connected to the controller.

[0018] It is worth noting that the second drive mechanism integrates the management of the second motor body and the battery through the controller, realizing intelligent drive and energy optimization of the stirring mechanism. The controller can adjust the motor speed and running time according to the preset program to ensure that the stirring process is uniform and efficient. The second battery provides an independent power supply, and the sealed design of the drive box protects the internal components from coal dust and moisture damage, extending the motor life.

[0019] Preferably, the stirring mechanism includes a stirring column fixed to the upper end of the output shaft of the second motor body and a plurality of stirring blocks fixed to the side wall of the stirring column. The lower side wall of the stirring column is rotatably mounted to the lower end of the stirring box, and both the stirring column and the stirring blocks are located inside the stirring box.

[0020] It is worth noting that the mixing mechanism achieves uniform mixing of coal dust samples through the combination design of the mixing column and multiple mixing blocks. The multi-angle arrangement of the mixing blocks enhances the turbulence effect of the liquid, ensuring the full suspension and dissolution of coal dust particles and avoiding sedimentation and agglomeration.

[0021] Preferably, the upper end of the horizontal block has at least two screw holes, and the inner wall of the screw holes is adapted to the side wall of the first mounting cylinder.

[0022] It is worth noting that the screw hole design provides multiple mounting points, allowing the first mounting cylinder to be flexibly fixed at different positions on the cross block, enhancing the modularity and scalability of the device.

[0023] Preferably, the sampling mechanism includes a plurality of bristles fixed to the side wall of the first mounting cylinder, the plurality of bristles being distributed along the circumferential direction of the side wall of the first mounting cylinder.

[0024] It is worth noting that this sampling mechanism adopts a brush design, which can gently and effectively brush away coal dust adhering to the fan blades. The circumferential distribution of the bristles ensures full coverage of the sampling area, avoiding omissions or damage to the blade surface. The flexibility of the bristles adapts to blades of different shapes and materials, reducing friction and wear during the sampling process and extending the service life of the device and the fan. This mechanism is particularly suitable for collecting loose coal dust, and its operation is simple and quick, improving sampling efficiency.

[0025] Preferably, the sampling mechanism includes a steel cylinder fixed to the side wall of the first mounting cylinder and a sponge cylinder fixed to the side wall of the steel cylinder.

[0026] It is worth noting that this sampling mechanism achieves efficient adsorption and fixation of coal dust deposits through the combination of steel cylinder and sponge cylinder. The porous structure of the sponge cylinder can absorb moisture and fine particles, making it suitable for sampling wet coal dust. The steel cylinder provides structural support and durability, ensuring stability and reliability during the sampling process. In the high humidity environment of underground coal mines, this mechanism can effectively collect representative samples, improving the accuracy and reliability of the analysis.

[0027] Preferably, the sampling mechanism includes a second mounting cylinder fixed to the side wall of the first mounting cylinder and a sampling cylinder threaded to the end of the second mounting cylinder away from the horizontal block. The end of the sampling cylinder away from the horizontal block is open, and a scraper is fixed to the inner wall of the end of the sampling cylinder away from the horizontal block. When the sampling cylinder rotates with the first mounting cylinder, the scraper is used to scrape off the solid coal dust attached to the fan blades.

[0028] It is worth noting that this sampling mechanism, through its scraper design, effectively scrapes away firmly attached coal dust. The open structure of the sampling cylinder allows direct contact with the blade surface. The scraper generates shearing force during rotation, which can peel off stubborn coal dust layers, ensuring the integrity and representativeness of the sample. This mechanism is particularly suitable for long-term accumulated solid coal dust, improving sampling efficiency and depth, and avoiding sample loss that may occur with traditional methods.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] 1. By setting up a driveable sampling mechanism, the operator can hold the device to make the sampling part contact the blade surface and start the drive. Using rotating bristles, adsorption sponge or scraper, coal dust in different attachment states can be brushed off or scraped off quickly and effectively. This method significantly improves sampling efficiency and ensures the consistency and representativeness of the sampling position, effectively overcoming the disadvantages of inconvenient manual operation and poor sampling effect.

[0031] 2. The device achieves rapid and contamination-free transfer of coal dust samples to the mixing box by setting up a modular installation mechanism and detachable sampling components. For brush or sponge tube sampling, the sample can fall directly into the mixing box after the component is installed as a whole. For scraper sampling, the sampling tube can be easily put into the mixing box by unscrewing it. This integrated process eliminates the need for additional containers and minimizes the risk of external contamination of the sample during the transfer process, thus ensuring accurate component analysis results.

[0032] 3. After sampling, the coal dust and water can be quickly and thoroughly mixed by activating the stirring mechanism in the sealed mixing box. The mixed liquid can be conveniently exported to the integrated water quality analyzer for testing. This design simplifies the traditional multi-step and cumbersome laboratory operation into a continuous action that can be completed on-site, greatly shortening the analysis time and facilitating rapid assessment of the underground environment. Attached Figure Description

[0033] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0034] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the present invention.

[0035] Figure 3 The diagram shown is a three-dimensional structural schematic of the first embodiment of the sampling mechanism of this utility model;

[0036] Figure 4 The diagram shown is a three-dimensional structural schematic of a second embodiment of the sampling mechanism of this utility model;

[0037] Figure 5 The diagram shown is a three-dimensional structural schematic of the third embodiment of the sampling mechanism of this utility model;

[0038] Figure 6 The diagram shown is a three-dimensional structural schematic of the installation mechanism of this utility model.

[0039] Figure 7 The diagram shown is a cross-sectional perspective view of the mixing box of this utility model.

[0040] Reference numerals: 1. Horizontal block; 2. Handle; 3. L-shaped block; 4. Screw hole; 5. First threaded column; 6. First internal threaded cylinder; 7. Stirring box; 8. Mounting mechanism; 81. Mounting cover; 82. Handle; 83. Second internal threaded cylinder; 9. Rotating rod; 10. Third internal threaded cylinder; 11. Second threaded column; 12. Water quality analyzer; 13. Detection port; 14. Detection groove; 15. First battery; 16. Tank; 17. First motor body; 18. First mounting cylinder; 181. Brush bristles; 182. Steel cylinder; 183. Sponge cylinder; 184. Second mounting cylinder; 185. Sampling cylinder; 186. Scraper; 19. Discharge pipe; 20. Solenoid valve; 21. Drive box; 22. Second motor body; 23. Stirring column; 24. Stirring block; 25. Second battery; 26. Controller; 27. First motor push-button switch. Detailed Implementation

[0041] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] To address the problems of inconvenient and inefficient manual sampling, inaccurate sampling location, difficulty in effectively scraping dust, and the need for manual mixing of coal dust and solvents due to the lack of integrated mixing devices in existing technologies, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-7 ;

[0043] A coal dust adhering material analysis device for underground ventilation fans in coal mines includes a horizontal block 1, a handle 2 fixed to the lower end of the horizontal block 1, an L-shaped block 3 fixed to the lower end of the horizontal block 1, a first threaded post 5 fixed to the lower end of the horizontal block 1, a first internal threaded cylinder 6 threadedly installed on the side wall of the first threaded post 5, a mixing box 7 fixed to the side wall of the first internal threaded cylinder 6, an installation mechanism 8 installed on the upper end of the mixing box 7, a first drive mechanism disposed inside the horizontal block 1, a rotating rod 9 fixed to the output end of the first drive mechanism, a third internal threaded cylinder 10 fixed to one end of the rotating rod 9 away from the horizontal block 1, a second threaded post 11 threadedly installed on the inner wall of the third internal threaded cylinder 10, and a first installation cylinder 18 threadedly installed on the side wall of the second threaded post 11.

[0044] A sampling mechanism is provided on the side wall of the first mounting cylinder 18;

[0045] A water quality analyzer 12 is provided on the side wall of the handle 2. A detection port 13 is fixedly connected to the L-shaped block 3. A detection groove 14 for detecting water quality is opened at the upper end of the detection port 13. A first storage battery 15 is fixedly connected to the lower end of the L-shaped block 3.

[0046] The mixing box 7 is equipped with a water outlet mechanism. The lower end of the mixing box 7 is fixedly connected to a drive box 21. The inner wall of the drive box 21 is equipped with a second drive mechanism. The mixing box 7 is equipped with a stirring mechanism. The second drive mechanism is used to drive the stirring mechanism.

[0047] In use, the sampling mechanism is installed on the side wall of the first mounting cylinder 18. Then, the first drive mechanism is turned on to make the rotating rod 9 rotate. The rotating rod 9 drives the third internal threaded cylinder 10 to rotate. The second threaded column 11 is installed on the inner wall of the third internal threaded cylinder 10, thereby making the first mounting cylinder 18 rotate. The sampling mechanism in the rotating state is used to sample the coal dust attached to the fan blades. Then, the first mounting cylinder 18 is removed by the thread and installed on the mounting mechanism 8. The mounting mechanism 8 is installed on the mixing box 7, and the sampling mechanism is located inside the mixing box 7. Then, the second drive mechanism is turned on to make the mixing mechanism rotate, which can mix the water in the mixing box 7 with the coal dust on the sampling mechanism. Finally, the water outlet mechanism is turned on, and the mixture is dripped into the detection groove 14 using external tools such as droppers. The water quality analyzer 12 can be turned on to quickly detect the mixture.

[0048] In this embodiment, specifically: the upper end of the mixing box 7 is provided with a threaded groove, and the mounting mechanism 8 includes a mounting cover 81 threadedly installed on the inner wall of the threaded groove, a handle 82 fixed to the upper end of the mounting cover 81, and a second internal threaded cylinder 83 fixed to the center of the upper end of the mounting cover 81. The inner wall of the second internal threaded cylinder 83 is adapted to the side wall of the first mounting cylinder 18.

[0049] In this embodiment, specifically: a groove 16 is provided inside the horizontal block 1, and the first driving mechanism includes a first motor body 17 fixed to the inner wall of the groove 16. The output shaft of the first motor body 17 is fixed to one end of the rotating rod 9 near the center of the horizontal block 1. A first motor button switch 27 is provided at one end of the handle 2 near the stirring box 7. The first motor button switch 27 and the first motor body 17 are electrically connected.

[0050] In this embodiment, specifically: the water outlet mechanism includes a liquid outlet pipe 19 that is fixed to the side wall of the mixing box 7 and a solenoid valve 20 disposed on the liquid outlet pipe 19.

[0051] In this embodiment, specifically: the second drive mechanism includes a second motor body 22, a second battery 25, and a controller 26, which are fixed to the bottom surface of the inner wall of the drive box 21. The second motor body 22 and the second battery 25 are both electrically connected to the controller 26.

[0052] In this embodiment, specifically: the stirring mechanism includes a stirring column 23 fixed to the upper end of the output shaft of the second motor body 22 and a plurality of stirring blocks 24 fixed to the side wall of the stirring column 23. The lower side wall of the stirring column 23 is rotatably mounted on the lower end of the stirring box 7. The stirring column 23 and the stirring blocks 24 are both located inside the stirring box 7.

[0053] It should be noted that when the stirring mechanism rotates, the sampling mechanism is fixed inside the stirring box 7. The design ensures that there is a sufficient gap between the stirring block 24 and the sampling mechanism to avoid collision.

[0054] In this embodiment, specifically: at least two screw holes 4 are provided at the upper end of the horizontal block 1, and the inner wall of the screw hole 4 is adapted to the side wall of the first mounting cylinder 18.

[0055] Example 1: In this example, the sampling mechanism includes a plurality of bristles 181 fixed to the side wall of the first mounting cylinder 18, and the plurality of bristles 181 are distributed along the circumferential direction of the side wall of the first mounting cylinder 18.

[0056] The 181 bristles are soft and evenly distributed, gently brushing away coal dust without damaging the surface of the fan blades. This mechanism is particularly suitable for collecting loose coal dust, and it is simple and quick to operate, improving sampling efficiency.

[0057] Example 2: In this example, the sampling mechanism specifically includes a steel cylinder 182 fixed to the side wall of the first mounting cylinder 18 and a sponge cylinder 183 fixed to the side wall of the steel cylinder 182.

[0058] The sponge cylinder 183 has high adsorption capacity and can effectively capture fine coal dust particles, while the steel cylinder 182 provides structural support and enhances durability, making it suitable for sampling wet or loose coal dust.

[0059] Example 3: In this example, the sampling mechanism includes a second mounting cylinder 184 fixed to the side wall of the first mounting cylinder 18 and a sampling cylinder 185 threadedly mounted to the end of the second mounting cylinder 184 away from the horizontal block 1. The end of the sampling cylinder 185 away from the horizontal block 1 is open. A scraper 186 is fixedly connected to the inner wall of the end of the sampling cylinder 185 away from the horizontal block 1. When the sampling cylinder 185 rotates with the first mounting cylinder 18, the scraper 186 is used to scrape off the solid coal dust attached to the fan blades.

[0060] The scraper 186 can effectively scrape solid coal dust, the sampling cylinder 185 has an open design to facilitate the collection of coal dust samples, and the second mounting cylinder 184 provides a stable connection to ensure that the sample does not fall off during the sampling process. It is suitable for the treatment of hard or strongly adhesive coal dust.

[0061] Working principle: The operator first selects a suitable sampling mechanism, such as brush 181, sponge cylinder 183 or scraper 186, according to the adhesion state of coal dust on the blades of the underground ventilation fan in the coal mine, such as loose, wet or solid, and then screws it onto the side wall of the first mounting cylinder 18.

[0062] This device offers two optimized operating modes for coal dust of different properties: Mode 1 is for sampling with brush 181 or sponge cylinder 183 for loose or wet coal dust. The brush 181 or sponge cylinder 183 is mounted on the first mounting cylinder 18. Holding the handle 2, the device is moved near the fan blades, bringing the sampling mechanism into contact with the blade surface. The first motor button switch 27 is pressed, starting the first motor body 17. This drives the rotating rod 9, the third internal threaded cylinder 10, the second threaded column 11, and the first mounting cylinder 18, along with the sampling mechanism, to rotate. The rotating brush 181 gently brushes away loose coal dust, or the sponge cylinder 183 absorbs wet coal dust. After sampling, the device is turned off. The first motor body 17 unscrews the entire first mounting cylinder 18 along with the sampling mechanism on it from the second threaded column 11, and then threads it onto the inner wall of the second internal threaded cylinder 83 of the mounting mechanism 8. The mounting cover 81 is then threaded into the screw groove at the upper end of the mixing box 7, so that the sampling mechanism with coal dust sample is suspended inside the mixing box 7. An appropriate amount of water is added to the mixing box 7, and the second motor body 22 is started by the controller 26 in the drive box 21. The second motor body 22 drives the stirring column 23 and the stirring block 24 to rotate, and fully mixes the coal dust and water. During this process, the water flow washes the coal dust off the sampling mechanism to form a uniform mixture.

[0063] Mode 2 is used for sampling with scraper 186 for solid coal dust. The sampling cylinder 185 with scraper 186 is installed on the first mounting cylinder 18. Holding the handle 2, the device is moved near the fan blades, so that the open end of the sampling cylinder 185 contacts the blade surface. The first motor button switch 27 is pressed, starting the first motor body 17, driving the rotating rod 9, the third internal threaded cylinder 10, the second threaded column 11, and the first mounting cylinder 18, along with the sampling cylinder 185, to rotate together. The rotating scraper 186 effectively scrapes off the solid coal dust adhering to the fan blades, and the scraped-off coal dust chunks are collected in the sampling cylinder 18. After sampling is completed, the first motor body 17 is turned off, and the sampling cylinder 185 is manually unscrewed from the second mounting cylinder 184. The operator can directly use their hands or auxiliary tools to scrape off the solid coal dust attached to the scraper 186 and collected in the sampling cylinder 185 or directly put it into the mixing box 7. Add an appropriate amount of water to the mixing box 7, and start the second motor body 22 through the controller 26 in the drive box 21. The second motor body 22 drives the stirring column 23 and the stirring block 24 to rotate, and fully stir and mix the coal dust and water to form a uniform mixture.

[0064] Subsequent general procedure: After mixing is completed, open the solenoid valve 20 of the water outlet mechanism to allow the mixture to flow out through the outlet pipe 19. The operator uses an external tool, such as a dropper, to draw up the mixture and drip it into the detection groove 14 of the detection port 13. Finally, turn on the water quality analyzer 12 on the side wall of the handle 2 to quickly analyze the mixture in the detection groove 14 and obtain the composition data of the coal dust adhering material, thus completing the entire analysis process.

[0065] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0066] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A coal dust adhering material analysis device for a coal mine underground ventilator, characterized by: It includes a horizontal block (1), a handle (2) fixed to the lower end of the horizontal block (1), an L-shaped block (3) fixed to the lower end of the horizontal block (1), a first threaded post (5) fixed to the lower end of the horizontal block (1), a first internal threaded cylinder (6) threaded on the side wall of the first threaded post (5), a mixing box (7) fixed to the side wall of the first internal threaded cylinder (6), an installation mechanism (8) installed on the upper end of the mixing box (7), a first drive mechanism set inside the horizontal block (1), a rotating rod (9) fixed to the output end of the first drive mechanism, a third internal threaded cylinder (10) fixed to the end of the rotating rod (9) away from the horizontal block (1), a second threaded post (11) threaded on the inner wall of the third internal threaded cylinder (10), and a first installation cylinder (18) threaded on the side wall of the second threaded post (11). The first mounting cylinder (18) has a sampling mechanism on its side wall; A water quality analyzer (12) is provided on the side wall of the handle (2), a detection port (13) is fixedly connected to the L-shaped block (3), a detection groove (14) for detecting water quality is opened at the upper end of the detection port (13), and a first storage battery (15) is fixedly connected to the lower end of the L-shaped block (3). The mixing box (7) is provided with a water outlet mechanism. The lower end of the mixing box (7) is fixedly connected to a drive box (21). The inner wall of the drive box (21) is provided with a second drive mechanism. The mixing box (7) is provided with a stirring mechanism. The second drive mechanism is used to drive the stirring mechanism.

2. The coal mine underground ventilator coal dust adhesion material analysis device according to claim 1, characterized in that: The upper end of the mixing box (7) is provided with a threaded groove. The mounting mechanism (8) includes a mounting cover (81) threaded onto the inner wall of the threaded groove, a handle (82) fixed to the upper end of the mounting cover (81), and a second internal threaded cylinder (83) fixed to the center of the upper end of the mounting cover (81). The inner wall of the second internal threaded cylinder (83) is adapted to the side wall of the first mounting cylinder (18).

3. The coal dust adhering material analysis device for underground ventilation fans in coal mines according to claim 1, characterized in that: A groove (16) is provided inside the horizontal block (1). The first drive mechanism includes a first motor body (17) fixed to the inner wall of the groove (16). The output shaft of the first motor body (17) is fixed to one end of the rotating rod (9) near the center of the horizontal block (1). A first motor button switch (27) is provided at one end of the handle (2) near the stirring box (7). The first motor button switch (27) and the first motor body (17) are electrically connected.

4. The coal dust adhering material analysis device for underground ventilation fans in coal mines according to claim 1, characterized in that: The water outlet mechanism includes a liquid outlet pipe (19) that is fixed to the side wall of the mixing box (7) and a solenoid valve (20) installed on the liquid outlet pipe (19).

5. The coal dust adhering material analysis device for underground ventilation fans in coal mines according to claim 1, characterized in that: The second drive mechanism includes a second motor body (22), a second battery (25), and a controller (26) fixed to the bottom of the inner wall of the drive box (21). The second motor body (22) and the second battery (25) are both electrically connected to the controller (26).

6. The coal dust adhering material analysis device for underground ventilation fans in coal mines according to claim 5, characterized in that: The stirring mechanism includes a stirring column (23) fixed to the upper end of the output shaft of the second motor body (22) and multiple stirring blocks (24) fixed to the side wall of the stirring column (23). The lower side wall of the stirring column (23) is rotatably installed at the lower end of the stirring box (7). The stirring column (23) and the stirring blocks (24) are both located inside the stirring box (7).

7. The coal dust adhering material analysis device for underground ventilation fans in coal mines according to claim 1, characterized in that: At least two screw holes (4) are provided at the upper end of the horizontal block (1), and the inner wall of the screw hole (4) is adapted to the side wall of the first mounting cylinder (18).

8. The coal dust adhering material analysis device for underground ventilation fans in coal mines according to claim 1, characterized in that: The sampling mechanism includes multiple bristles (181) fixed to the side wall of the first mounting cylinder (18), and the multiple bristles (181) are distributed along the circumferential direction of the side wall of the first mounting cylinder (18).

9. The coal dust adhering material analysis device for underground ventilation fans in coal mines according to claim 1, characterized in that: The sampling mechanism includes a steel cylinder (182) fixed to the side wall of the first mounting cylinder (18) and a sponge cylinder (183) fixed to the side wall of the steel cylinder (182).

10. The coal dust adhering material analysis device for underground ventilation fans in coal mines according to claim 1, characterized in that: The sampling mechanism includes a second mounting cylinder (184) fixed to the side wall of the first mounting cylinder (18) and a sampling cylinder (185) threaded onto the end of the second mounting cylinder (184) away from the horizontal block (1). The end of the sampling cylinder (185) away from the horizontal block (1) is open. A scraper (186) is fixed to the inner wall of the end of the sampling cylinder (185) away from the horizontal block (1). When the sampling cylinder (185) rotates with the first mounting cylinder (18), the scraper (186) is used to scrape the solid coal dust attached to the fan blades.

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