Dynamic screening, metering and transferring system and method for underground coal mine slag water

Abstract

The invention belongs to the field of coal mine underground mechanical design, and relates to a coal mine underground slag water dynamic screening, metering and transferring system and method.The system comprises a first hose conveying module, a solid-liquid separation module, a dynamic weighing module and a second hose conveying module which are connected in sequence; the first hose conveying module is used for conveying a slag-water mixture discharged in the drilling and punching process to the solid-liquid separation module from a slag discharging pipe. The solid-liquid separation module is used for separating the slag-water mixture into wet slag and water, and the wet slag falls into the dynamic weighing module; the dynamic weighing module is used for weighing the wet slag in real time and conveying the weighed wet slag to the hose conveying module II; and the second hose conveying module is used for conveying the weighed wet slag to a roadway conveying belt. Through cooperation of the hose conveying module, the solid-liquid separation module and the dynamic weighing module, automatic metering and transferring functions of the drilling slag are achieved.

Description

Technical Field

[0001] The present invention belongs to the field of underground coal mine machinery design, and relates to a dynamic screening, metering and transfer system and method for coal slag and water underground in coal mines. Background Art

[0002] In the field of coal mining, with the continuous increase of the mining depth, the coal seam geological conditions have changed significantly, resulting in a significant decrease in the coal seam gas permeability coefficient and a more complex gas preservation condition. On the one hand, the coal seam gas pressure and in-situ stress increase with the increase of the burial depth, and the outburst risk increases sharply; on the other hand, the traditional gas drainage method is difficult to be effectively implemented due to the decrease of the coal seam permeability, and there is an urgent need to develop efficient permeability enhancement and enhanced drainage technologies. For this reason, the integrated operation mode of hydraulic punching is widely adopted in the bottom gas drainage roadway of outburst coal seams in the industry, and its core process includes five key links: "drilling, prevention, punching, screening, and metering": drilling holes through a crawler drill (drilling), building a safety protection system by using an orifice blowout prevention module and an exhaust fan mechanism (prevention), carrying out fracture permeability enhancement operation by using a high-pressure hydraulic punching pump (punching), and then screening and metering the coal-water mixture through a coal-water separation module (screening), and finally realizing the quantitative conveying of coal slag into a scraper conveyor (metering).

[0003] In the existing technical system, mature equipment configurations have been formed in the "drilling, prevention, and punching" links, such as crawler drills, orifice blowout prevention devices, and mud pump trucks. However, there are still significant technical defects in the "screening and metering" links. The currently commonly used vibrating screening device can initially separate coal and water during the operation, but there are three prominent problems: First, the screen mesh is easily adhered with coal slime, resulting in pore blockage, and the separation efficiency decreases exponentially with time, and it is necessary to frequently stop the machine for cleaning; Second, after blockage, the water content of the separated product increases sharply, and it is necessary to additionally configure a metering tank for secondary sedimentation and dehydration, forming a double process of "screening - sedimentation", which seriously restricts the continuity of the operation process; Third, the operation of the vibrating screen generates high-intensity noise (measured above 110 dB), forming serious acoustic pollution in the closed roadway environment, and long-term exposure is extremely likely to induce occupational deafness of operators. The metering link completely relies on manual operation. Each borehole generates an average of 5 tons of coal slag, which requires workers to repeatedly shovel it into a metering iron box and then manually shovel it out of the metering iron box. This mode has four disadvantages: First, the labor intensity is extremely high, and a full-time coal shoveler needs to be configured for a single operation, which does not conform to the development direction of reducing the number of people and improving efficiency in modern coal mines; Second, the manual metering error rate exceeds 15%, seriously affecting the accurate regulation of gas drainage parameters; Third, the coal shoveling operation and the operation of the drill form a time sequence conflict, and an additional 30 - 45 minutes of downtime waiting time is required for each borehole, resulting in a decrease in equipment utilization rate; Fourth, repeated shutdowns during the exposure of boreholes significantly increase the risk of secondary disasters such as borehole collapse and drill pipe burial.

[0004] In summary, the existing integrated hydraulic punching operation system has systematic defects such as poor equipment reliability, low automation level, and imbalance in man-machine efficiency in the end-treatment link, which has become a bottleneck problem restricting the large-scale popularization and application of this technology. Therefore, developing intelligent equipment with self-cleaning screening function and continuous metering ability is of great significance for improving the efficiency of coal mine gas control and ensuring safe production. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a dynamic screening, metering and transfer system and method for slag water in coal mine underground to solve the problems proposed in the background technology.

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

[0007] A dynamic screening, metering and transfer system for slag water in coal mine underground includes a hose conveying module one, a solid-liquid separation module, a dynamic weighing module and a hose conveying module two connected in sequence;

[0008] The hose conveying module one is used to convey the slag water mixture discharged during the drilling and punching processes from the slag discharge pipe to the solid-liquid separation module;

[0009] The solid-liquid separation module is used to separate the slag water mixture into wet slag and water, and the wet slag falls into the dynamic weighing module;

[0010] The dynamic weighing module is used to weigh the wet slag in real time and convey the weighed wet slag to the hose conveying module two;

[0011] The hose conveying module two is used to convey the weighed wet slag to the roadway transportation belt.

[0012] Further, the hose conveying module one and the hose conveying module two have the same structure, and both include a hydraulic motor one, a universal auger and a wear-resistant conveying hose; the hydraulic motor one drives the universal auger arranged in the wear-resistant conveying hose to rotate, and pushes the slag water mixture or wet slag from the feed port to the discharge port.

[0013] Further, the hydraulic motor one is connected to one end of the universal auger close to the discharge port.

[0014] Further, the solid-liquid separation module includes a hydraulic motor two, laminations and a plurality of grid bars arranged side by side. The plurality of laminations are alternately and rotatably installed on the grid bars, and the hydraulic motor two drives the laminations to rotate, so that the laminations push the wet slag to move in one direction, and the water flows down through the gaps between the grid bars arranged side by side.

[0015] Further, the solid-liquid separation module further includes a solid-liquid separation cavity, which has a slag-water mixture inlet and a wet slag outlet respectively connected to the hose conveying module one and the dynamic weighing module, and a drain pipe is provided at the bottom of the solid-liquid separation cavity to drain water through the drain pipe to the roadway drainage channel or an external drain pipe, and the hydraulic motor two is installed on the solid-liquid separation cavity and drives a plurality of laminations to rotate through a gear.

[0016] Further, the dynamic weighing module includes a hydraulic motor three, a weighing belt, a weighing sensor and an encoder; the hydraulic motor three drives the weighing belt to rotate, and when the wet slag passes through the weighing belt, the data is processed by the weighing sensor and the encoder to record the weight of the wet slag in real time.

[0017] Further, both ends of the weighing belt are respectively connected to the wet slag outlet of the solid-liquid separation module and the inlet of the hose conveying module two, the weighing sensor is arranged at the bottom of the weighing belt, and the encoder is arranged on the rotating shaft in the weighing belt to cooperate with the weighing sensor to process data.

[0018] Further, the dynamic weighing module further includes a memory for recording data.

[0019] Further, the hose conveying module one, the solid-liquid separation module, the dynamic weighing module and the hose conveying module two are all arranged on the crawler chassis for easy movement.

[0020] A method for dynamically screening, measuring and transporting slag water underground in a coal mine uses the above-mentioned dynamic screening, measuring and transporting system for slag water underground in a coal mine, and specifically includes the following steps:

[0021] Connect the inlet of the hose conveying module one to the slag discharge pipe, and connect the outlet of the hose conveying module two to the roadway conveyor belt;

[0022] The slag-water mixture discharged during the drilling and punching of the drill rig flows into the inlet of the hose conveying module one through the orifice blowout prevention device and the slag discharge pipe, and is transported to the solid-liquid separation module through the hose conveying module one;

[0023] The solid-liquid separation module separates the slag-water mixture into wet slag and water, the water is discharged through the drain pipe to the roadway drainage channel or an external drain pipe, and the wet slag falls into the dynamic weighing module;

[0024] The wet slag is weighed in real time by the dynamic weighing module, and the weighed wet slag is transported to the hose conveying module two;

[0025] The weighed wet slag is transported to the roadway conveyor belt through the hose conveying module two.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. Through the coordinated cooperation of the hose conveying module, solid-liquid separation module, and dynamic weighing module, the present invention realizes the automated metering and transfer function of drill cuttings. Traditional drill cutting treatment relies on manual shoveling and manual metering, which is labor-intensive and inefficient. However, this system directly conveys the slag-water mixture from the drilling orifice to the solid-liquid separation module through the hose conveying module, and then the dynamic weighing module records the weight of wet slag in real time, completely replacing the heavy manual operation. The solid-liquid separation module adopts innovative separation technology to ensure the efficient separation of wet slag and water, and the dynamic weighing module improves the metering accuracy through precise belt weighing technology. This automated process not only greatly reduces the physical burden on workers but also reduces human errors, improves operation efficiency and safety, and fully demonstrates the practicality of the technical solution.

[0028] 2. Through the closed-loop transportation design of slag water, this technical solution effectively maintains the cleanliness and safety of the roadway construction environment. The hose conveying module directly conveys the slag-water mixture from the orifice to the treatment unit, avoiding the scattering and accumulation of slag water in the roadway; after solid-liquid separation, the water is discharged into the roadway drainage system through the drain pipe, and the wet slag is conveyed to the conveyor belt by the subsequent hose, realizing the whole-process non-dropping treatment. This design not only reduces the workload of secondary cleaning in the roadway but also prevents the corrosion of roadway equipment and structures by slag water, extending the equipment life. Compared with the traditional open transportation, this innovative closed-loop system demonstrates significant environmental protection advantages and practical value, providing a more efficient and clean solution for roadway construction.

[0029] 3. The modular design of the present invention endows the system with strong adaptability and maintenance convenience. The hose conveying module, solid-liquid separation module, and dynamic weighing module operate independently, facilitating flexible deployment and adjustment in the narrow and variable environment of the coal mine underground. The crawler bottom vehicle equipped with the system further improves the mobility and can quickly adapt to the needs of different working points. In addition, the use of wear-resistant conveying hoses and key components made of highly durable materials significantly extends the service life and reduces the maintenance frequency and cost. The combination of this modularity and high durability not only reflects the innovation of the technical solution but also brings significant economic benefits to practical applications by reducing maintenance expenses and enhancing applicability, and is especially suitable for long-term use under complex working conditions.

[0030] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be learned from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in detail preferably with reference to the accompanying drawings, where:

[0032] Figure 1 Schematic diagram of the working process of a dynamic screening, metering and transfer system for slag water underground in a coal mine in an embodiment;

[0033] Figure 2 Schematic diagram of the structure of a dynamic screening, metering and transfer system for slag water underground in a coal mine in an embodiment;

[0034] Figure 3 Schematic diagram of the structure of the first hose conveying module in an embodiment;

[0035] Figure 4 Schematic diagram of the working principle of the solid-liquid separation module in an embodiment.

[0036] Reference numerals: drill rig 1 in the drill site, blowout preventer 2 at the orifice, slag discharge pipe 3, first hose conveying module 4, solid-liquid separation module 5, dynamic weighing module 6, second hose conveying module 7, drain pipe 8, crawler chassis 9, roadway conveyor belt 10;

[0037] First hose conveying feed port 41, wear-resistant conveying hose 42, universal auger 43, first hose conveying discharge port 44, first hydraulic motor 45, second hydraulic motor 51, laminated plate 52, grid bar 53, weighing belt 61, weighing sensor 62, third hydraulic motor 63, encoder 64, second hose conveying feed port 71, second hose conveying discharge port 72. Detailed implementation manners

[0038] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0039] Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and cannot be understood as a limitation to the present invention; in order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0040] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be construed as a limitation of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0041] Embodiment 1

[0042] Please refer to Figures 1 to 2 , which is a dynamic screening, metering and transfer system for slag water in coal mines. It includes a hose conveying module 1, a solid-liquid separation module 5, a dynamic weighing module 6 and a hose conveying module 2 that are connected in sequence, and all modules are installed on a crawler chassis 9 for easy movement and use in coal mines.

[0043] The hose conveying module 1 is used to convey the slag water mixture discharged during the drilling and punching processes from the slag discharge pipe 3 to the solid-liquid separation module 5; '

[0044] The solid-liquid separation module 5 is used to separate the slag water mixture into wet slag and water, and the wet slag falls into the dynamic weighing module 6;

[0045] The dynamic weighing module 6 is used to weigh the wet slag in real time and convey the weighed wet slag to the hose conveying module 2;

[0046] The hose conveying module 2 is used to convey the weighed wet slag to the roadway conveyor belt 10.

[0047] Specifically, for the hose conveying module 1: its feed port (i.e., the hose conveying feed port 11) is connected to the slag discharge pipe 3, and is used to receive the slag water mixture discharged by the drill rig 1 in the drill site through the orifice blowout prevention device 2 and the slag discharge pipe 3, and convey it to the solid-liquid separation module 5 through the discharge port (i.e., the hose conveying discharge port 14).

[0048] The solid-liquid separation module 5: receives the slag water mixture from the hose conveying module 1 and separates it into wet slag and water. The separated wet slag falls into the dynamic weighing module 6, and the water is discharged through the drain pipe 8 to the roadway drainage channel or an external drain pipe.

[0049] The dynamic weighing module 6: weighs the wet slag in real time and conveys the weighed wet slag to the feed port (i.e., the hose conveying feed port 21) of the hose conveying module 2.

[0050] The hose conveying module two 7: Its discharge port (i.e., the hose conveying discharge port two 72) is connected to the roadway transportation belt 10 to convey the weighed wet slag onto the belt and complete the transfer.

[0051] The working process is as follows:

[0052] Slurry and water input: When the drill rig 1 in the drill site drills or punches holes, the slurry-water mixture flows into the hose conveying inlet one 41 of the hose conveying module one 4 through the orifice blowout preventer 2 and the slag discharge pipe 3.

[0053] Initial conveying: The hose conveying module one 4 conveys the slurry-water mixture to the solid-liquid separation module 5.

[0054] Solid-liquid separation: The solid-liquid separation module 5 separates the slurry-water mixture into wet slag and water. The water is discharged through the drain pipe 8, and the wet slag falls into the dynamic weighing module 6.

[0055] Dynamic weighing: The dynamic weighing module 6 weighs the wet slag in real time and sends the weighed wet slag to the hose conveying inlet two 71 of the hose conveying module two 7.

[0056] Final transfer: The hose conveying module two 7 conveys the weighed wet slag from the hose conveying discharge port two 72 to the roadway transportation belt 10 to complete the entire transfer process.

[0057] In this embodiment, each module can adopt conventional devices in the prior art. The key lies in the coordinated cooperation of each module rather than the specific structure of each module. This embodiment realizes the automatic conveying, separation, weighing and transfer of the slurry-water mixture through modular cooperation design, with simple operation, suitable for use in the narrow environment of coal mine underground, improving work efficiency and reducing manual intervention.

[0058] Embodiment 2

[0059] Please refer to Figures 1 to 4 , on the basis of Embodiment 1, this embodiment details the specific structures and functions of each module in the dynamic screening, metering and transfer system of coal mine underground slurry and water, facilitating the understanding of the implementation method of the system.

[0060] 1. Hose conveying module one 4 and hose conveying module two 7

[0061] As Figure 3 shown, the hose conveying module one 4 and the hose conveying module two 7 have the same structure and both include the following components:

[0062] Hose conveying inlet one 41 (or hose conveying inlet two 71): As the inlet of the material, it receives the slurry-water mixture or wet slag respectively.

[0063] Wear-resistant conveying hose 42: It is made of wear-resistant materials and is internally equipped with a universal auger 43, which has a certain flexibility and can adapt to the complex terrain in the roadway.

[0064] Universal auger 43: It has a spiral structure and is installed inside the wear-resistant conveying hose 42. It is driven by a hydraulic motor 1 45 to rotate, pushing the material from the feed port to the discharge port.

[0065] Hose conveying discharge port 1 44 (or hose conveying discharge port 2 72): The outlet of the material, which is respectively connected to the solid-liquid separation module 5 or the roadway conveyor belt 10.

[0066] Hydraulic motor 1 45: It is installed at one end of the universal auger 43 close to the discharge port, providing rotational power to ensure smooth conveying.

[0067] Working principle: When the hydraulic motor 1 45 is started, it drives the universal auger 43 to rotate. The slag-water mixture or wet slag moves from the feed port to the discharge port under the spiral push, completing the conveying task. The design of the wear-resistant conveying hose enhances the durability of the module and is suitable for long-term handling of materials containing solid particles.

[0068] 2. Solid-liquid separation module 5

[0069] As Figure 4 shown, the solid-liquid separation module 5 includes the following structures:

[0070] Solid-liquid separation cavity (i.e., the cavity for accommodating the grid bars 53, the stack plates 52, and the slag-water mixture): It is provided with a slag-water mixture feed port and a wet slag outlet, which are respectively connected to the discharge port of the hose conveying module 1 4 and the inlet of the dynamic weighing module 6. A drain pipe 8 is installed at the bottom of the cavity.

[0071] Grid bars 53: A number of them are arranged side by side in the cavity, with gaps left between adjacent grid bars, and water flows through the gaps to the bottom and is discharged.

[0072] Stack plates 52: A number of them are alternately installed on the grid bars 53 and can rotate around an axis, forming a dynamic separation structure with the grid bars 53.

[0073] Hydraulic motor 2 51: It is installed on the cavity and is connected to the stack plates 52 through gears to drive their rotation.

[0074] Working principle: After the slag-water mixture enters the cavity, the hydraulic motor 2 51 drives the stack plates 52 to rotate. The stack plates push the wet slag towards the wet slag outlet direction, and at the same time, water flows down through the gaps of the grid bars 53 and is discharged through the drain pipe 8. The rotating design of the stack plates avoids the accumulation of wet slag and ensures the continuity of the separation process.

[0075] This module not only realizes the separation of slag and water, but also realizes the dynamic transfer of wet slag. At the same time, the rotating stack plates effectively prevent the blockage of the gaps between the grid bars.

[0076] 3. Dynamic weighing module 6

[0077] The dynamic weighing module 6 adopts belt weighing technology and includes the following components:

[0078] Weighing belt 61: Its two ends are respectively connected to the wet slag outlet of the solid-liquid separation module 5 and the hose conveying inlet 71 of the second hose conveying module 7, and is used to carry and convey wet slag.

[0079] Hydraulic motor three 63: Drives the weighing belt 61 to rotate to ensure the smooth passage of wet slag.

[0080] Weighing sensor 62: Installed at the bottom of the weighing belt 61 to detect the weight of wet slag in real time.

[0081] Encoder 64: Installed on the rotating shaft of the weighing belt 61, cooperating with the weighing sensor 62 to process and record weight data.

[0082] Storage: Used to store weighing data for subsequent viewing and analysis.

[0083] Working principle: The wet slag falls onto the weighing belt 61 from the solid-liquid separation module 5. The hydraulic motor three 63 drives the belt to rotate. When the wet slag passes through, the weighing sensor 62 and the encoder 64 collect and process the weight data in real time and record it in the storage. Subsequently, the wet slag is sent to the second hose conveying module 7. This design realizes the dynamic and accurate measurement of wet slag.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A dynamic screening, metering and transfer system for slag water underground in coal mines, characterized in that, It includes a hose conveying module 1, a solid-liquid separation module, a dynamic weighing module, and a hose conveying module 2 connected in sequence; The hose conveying module 1 is used to convey the slag-water mixture discharged during the drilling and punching processes from the slag discharge pipe to the solid-liquid separation module; The solid-liquid separation module is used to separate the slag-water mixture into wet slag and water, and the wet slag falls into the dynamic weighing module; The dynamic weighing module is used to weigh the wet slag in real time and convey the weighed wet slag to the hose conveying module 2; The hose conveying module 2 is used to convey the weighed wet slag to the roadway transportation belt.

2. The dynamic screening, metering and transfer system for slag water in coal mines according to claim 1, characterized in that, The hose conveying module 1 and the hose conveying module 2 have the same structure, and both include a hydraulic motor 1, a universal auger, and a wear-resistant conveying hose; the hydraulic motor 1 drives the universal auger arranged in the wear-resistant conveying hose to rotate, and pushes the slag-water mixture or wet slag from the feed port to the discharge port.

3. The dynamic screening, metering and transfer system for slag water in coal mines according to claim 2, wherein, The hydraulic motor 1 is connected to one end of the universal auger close to the discharge port.

4. The coal mine underground slag water dynamic screening, metering and transfer system according to claim 1, characterized in that, The solid-liquid separation module includes a hydraulic motor 2, laminations, and a number of grid bars arranged side by side. A number of the laminations are alternately rotatably installed on the grid bars, and the hydraulic motor 2 drives the laminations to rotate, so that the laminations push the wet slag to move in one direction, and the water flows down through the gaps between the grid bars arranged side by side.

5. The dynamic screening, metering and transferring system for slag water in coal mines according to claim 4, wherein, The solid-liquid separation module further includes a solid-liquid separation cavity. The solid-liquid separation cavity has a slag-water mixture feed port and a wet slag outlet respectively connected to the hose conveying module 1 and the dynamic weighing module, and a drain pipe is provided at the bottom of the solid-liquid separation cavity to drain the water through the drain pipe to the roadway drainage channel or an external drain pipe, and the hydraulic motor 2 is installed on the solid-liquid separation cavity and drives a number of laminations to rotate through gears.

6. The dynamic screening, metering and transfer system for slag water in coal mines according to claim 1, characterized in that, The dynamic weighing module includes a hydraulic motor 3, a weighing belt, a weighing sensor, and an encoder; the hydraulic motor 3 drives the weighing belt to rotate, and when the wet slag passes through the weighing belt, the data is processed by the weighing sensor and the encoder to record the weight of the wet slag in real time.

7. The dynamic screening, metering and transfer system for slag water in underground coal mines according to claim 6, wherein, Both ends of the weighing belt are respectively connected to the wet slag outlet of the solid-liquid separation module and the feed port of the hose conveying module 2. The weighing sensor is arranged at the bottom of the weighing belt, and the encoder is arranged on the rotating shaft in the weighing belt to cooperate with the weighing sensor to process data.

8. The dynamic screening, metering and transfer system for slag water in underground coal mines according to claim 6, characterized in that, The dynamic weighing module further includes a memory for recording data.

9. The dynamic screening, metering and transfer system for slag water in coal mines according to claim 1, wherein, The hose conveying module 1, the solid-liquid separation module, the dynamic weighing module, and the hose conveying module 2 are all arranged on a crawler chassis for easy movement.

10. A method for dynamically screening, metering and transporting slag water underground in a coal mine, characterized in that, Adopting the underground coal mine slag-water dynamic screening, metering and transfer system according to any one of claims 1 to 9, specifically including the following steps: Connect the feed port of the hose conveying module 1 to the slag discharge pipe, and connect the discharge port of the hose conveying module 2 to the roadway transportation belt; The slag-water mixture discharged by the drill during the drilling and punching processes flows into the feed port of the hose conveying module 1 through the orifice blowout preventer and the slag discharge pipe, and is conveyed to the solid-liquid separation module through the hose conveying module 1; The slag-water mixture is separated into wet slag and water by the solid-liquid separation module, the water is drained to the roadway drainage channel or an external drain pipe through the drain pipe, and the wet slag falls into the dynamic weighing module; The wet slag is weighed in real time by the dynamic weighing module, and the weighed wet slag is conveyed to the second hose conveying module; The weighed wet slag is conveyed to the roadway conveyor belt by the second hose conveying module.

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