Intelligent ventilation regulation and control system for metal mine

Abstract

The invention discloses an intelligent ventilation regulation and control system for a metal mine, and relates to the technical field of metal mines, the intelligent ventilation regulation and control system comprises a movable base, the top of the movable base is provided with a height adjusting mechanism, the top of the height adjusting mechanism is provided with a ventilation shell, and the top of the ventilation shell is fixedly connected with a dust falling shell; a PLC is fixedly installed on one side of the ventilation shell, and the wiring end of the PLC is connected with a wire arranging opening in the device. According to the intelligent ventilation regulation and control system for the metal mine, the ventilation mechanism, the dust falling mechanism and the PLC are arranged to form the intelligent regulation and control system, the ventilation quantity is conveniently and accurately regulated and controlled, the ventilation effect is guaranteed, the function of automatically carrying out dust falling operation is achieved, the air quality in the mine is guaranteed, and dust harm is reduced; the problems that an existing device is inconvenient to intelligently regulate and control the rotating speed of fan blades, energy consumption is increased, the device does not have an automatic dust falling function, and the working efficiency and practicability of the device are reduced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of metal mines, and in particular to an intelligent ventilation control system for metal mines. Background Art

[0002] Metal mines refer to specific areas where metal mineral resources are deposited and a series of production operations such as large-scale mining and ore dressing are carried out. It covers geological bodies from deep underground to a certain range on the surface, which contain various metal minerals such as copper, iron, aluminum, gold, silver, zinc, lead, etc.

[0003] If the air in the mine is not circulating, a large amount of harmful gases will be produced when mining ore. In order to transport fresh air into the mine and dilute the harmful gases at the same time, ventilation equipment is needed to extract the air in the mine.

[0004] However, the existing device has the following shortcomings during use: 1) Existing devices usually rotate the fan blades at a fixed speed to extract air from the mine during use, which makes it difficult to intelligently control the speed of the fan blades, increases energy consumption, and results in the inability to quickly and effectively exhaust air to improve air quality.

[0005] 2) The existing device does not have the function of automatic dust reduction during use, which reduces the working efficiency and practicality of the device.

[0006] Therefore, we proposed an intelligent ventilation control system for metal mines to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide an intelligent ventilation control system for metal mines. An air quality sensor is set to monitor the air quality in real time. According to the actual air quality conditions, the air quality sensor adjusts the speed of the speed regulating motor through a PLC control processor to accurately control the ventilation volume. At the same time, a dust detector is set to monitor the dust content in the working environment. When the dust content is too much, the dust detector controls the water pump and the drive motor through the PLC control processor to start working, spray water through the atomizing nozzle, and the second shaft drives the fan blades to rotate to blow out the water mist, so as to solve the problems raised by the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent ventilation control system for a metal mine, an intelligent ventilation control system for a metal mine, comprising a mobile base, a height adjustment mechanism is arranged on the top of the mobile base, a ventilation shell is arranged on the top of the height adjustment mechanism, a dust suppression shell is fixedly connected to the top of the ventilation shell, a PLC controller is fixedly installed on one side of the ventilation shell, a wiring terminal of the PLC controller is connected to a wiring port in the device, a ventilation mechanism is arranged in the ventilation shell, and a dust suppression mechanism is arranged in the dust suppression shell; The ventilation mechanism comprises a first mounting frame, the first mounting frame is fixedly connected to the ventilation shell, a speed regulating motor is fixedly mounted on one side of the first mounting frame, a first rotating shaft is fixedly connected to the output end of the speed regulating motor, one end of the first rotating shaft movably passes through the first mounting frame and is fixedly mounted with an exhaust fan blade, and an air quality sensor is fixedly mounted on one side of the dust reduction shell; The dust reduction mechanism includes a second mounting frame, which is fixedly connected to the dust reduction shell, a driving motor is fixedly installed on one side of the second mounting frame, an output end of the driving motor is fixedly connected to a second rotating shaft, one end of the second rotating shaft movably passes through the second mounting frame and is fixedly installed with a blowing fan blade, a square tube is arranged in the dust reduction shell, an atomizing nozzle is installed on one side of the square tube, a water pump is fixedly installed on the top of the dust reduction shell, and a dust detector is fixedly installed on one side of the dust reduction shell.

[0009] Preferably, the height adjustment mechanism includes a hydraulic cylinder, which is fixedly mounted on the top of the mobile base, the output end of the hydraulic cylinder is fixedly connected to a hydraulic rod, the top end of the hydraulic rod is fixedly connected to a fixed platform, and the ventilation shell is fixedly connected to the top of the fixed platform.

[0010] Preferably, a telescopic rod is fixedly connected to the top of the movable base, and the top end of the telescopic rod is fixedly connected to the fixed platform.

[0011] Preferably, a support frame is fixedly connected to the inner side of the dust suppression shell, and a connecting pipe is rotatably installed on the support frame.

[0012] Preferably, a first gear is fixedly sleeved on the outer surface of the connecting pipe, a second gear is fixedly sleeved on the outer surface of the second rotating shaft, and the first gear is meshingly connected with the second gear.

[0013] Preferably, a U-shaped tube is fixedly installed on the inner side of the dust suppression shell, and one end of the connecting tube is connected to the interior of the square tube.

[0014] Preferably, one end of the connecting tube is communicated with the interior of the U-shaped tube, and one end of the connecting tube is rotatably connected to the U-shaped tube.

[0015] Preferably, a water tank is fixedly mounted on the top of the dust suppression shell, a water inlet pipe is fixedly connected to the top of the water tank, and a sealing cover is threadedly connected to the outer top of the water inlet pipe.

[0016] Preferably, the output end of the water pump is fixedly connected to a delivery pipe, one end of the delivery pipe away from the water pump movably passes through the dust suppression shell and is connected to the interior of the U-shaped tube, and the input end of the water pump is connected to the interior of the water tank through a pipe.

[0017] Preferably, a support sleeve is fixedly connected to the inner side of the dust suppression shell, and the support sleeve is movably sleeved on the outer surface of the second rotating shaft.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention forms an intelligent control system by arranging a ventilation mechanism, a dust reduction mechanism and a PLC controller, and arranges an air quality sensor to monitor the air quality in real time. According to the actual air quality condition, the air quality sensor adjusts the rotation speed of the speed regulating motor through the PLC control processor, accurately controls the ventilation volume, and ensures the ventilation effect. At the same time, the dust content in the working environment is monitored by arranging a dust detector. When the dust content is too much, the dust detector controls the water pump and the drive motor through the PLC control processor to start working, and water is sprayed out through the atomizing nozzle. The second rotating shaft drives the fan blades to rotate to blow out the water mist, which is convenient for automatic dust reduction operation. It solves the problems that the existing device is not convenient for intelligently controlling the rotation speed of the fan blades, increases energy consumption, and does not have the function of automatic dust reduction, which reduces the working efficiency and practicality of the device.

[0019] 2. The present invention sets a height adjustment mechanism and uses a hydraulic cylinder to drive the hydraulic rod to extend and retract, so as to change the height of the ventilation shell and the dust reduction shell. At the same time, the telescopic rod is used to further enhance the stability and support of the structure. The position height can be flexibly adjusted according to the different working area heights, ventilation and dust reduction requirements in the metal mine, ensuring the good ventilation and dust reduction effects, and having stronger applicability.

[0020] 3. The present invention drives the second rotating shaft to rotate by driving the motor. On the one hand, the fan blades rotate to assist the air flow. On the other hand, the second gear on the second rotating shaft meshes with the first gear on the connecting pipe to drive the connecting pipe to rotate, so that the square tube drives the atomizing nozzle to rotate, achieving the effect of all-round spraying, so that the water mist sprayed from the atomizing nozzle of the square tube can be more evenly diffused in the dust reduction shell, effectively reducing the dust-containing air, ensuring the air quality in the mine, and reducing dust hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of the main structure of an intelligent ventilation control system for metal mines according to the present invention; Figure 2 This is a right side structural stereogram of a metal mine intelligent ventilation control system of the present invention; Figure 3 This is a rear structural stereogram of an intelligent ventilation control system for a metal mine according to the present invention; Figure 4 It is a three-dimensional diagram of the partial structure of height adjustment in the intelligent ventilation control system for metal mines of the present invention; Figure 5 It is a partial cross-sectional structural stereogram of a ventilation shell in a metal mine intelligent ventilation control system of the present invention; Figure 6 A cross-sectional structural stereogram of a dust suppression shell in a metal mine intelligent ventilation control system according to the present invention; Figure 7 The invention is a metal mine intelligent ventilation control system Figure 6 The enlarged stereoscopic view of the structure at B in the middle; Figure 8 The invention is a metal mine intelligent ventilation control system Figure 3 Enlarged structural stereogram at point A in the middle.

[0022] In the figure: 1. mobile base; 2. height adjustment mechanism; 201. hydraulic cylinder; 202. hydraulic rod; 203. fixed platform; 204. telescopic rod; 3. ventilation shell; 4. dust suppression shell; 5. PLC controller; 6. ventilation mechanism; 601. first mounting frame; 602. speed regulating motor; 603. first rotating shaft; 604. exhaust fan blade; 605. air quality sensor; 7. dust suppression mechanism; 701. second mounting frame; 702. driving motor; 703. second rotating shaft; 704. blowing fan blade; 705. square tube; 706. atomizing nozzle; 707. water pump; 708. dust detector; 709. support frame; 710. connecting pipe; 711. first gear; 712. second gear; 713. U-shaped pipe; 714. water tank; 715. water inlet pipe; 716. sealing cover; 717. delivery pipe; 718. support sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1-Figure 8As shown, the present invention provides a technical solution: an intelligent ventilation control system for a metal mine, comprising a mobile base 1, a height adjustment mechanism 2 is arranged on the top of the mobile base 1, a ventilation shell 3 is arranged on the top of the height adjustment mechanism 2, a dust suppression shell 4 is fixedly connected to the top of the ventilation shell 3, a PLC controller 5 is fixedly installed on one side of the ventilation shell 3, a wiring terminal of the PLC controller 5 is connected to a wiring port in the device, a ventilation mechanism 6 is arranged in the ventilation shell 3, and a dust suppression mechanism 7 is arranged in the dust suppression shell 4; The ventilation mechanism 6 includes a first mounting frame 601, which is fixedly connected to the ventilation shell 3, a speed regulating motor 602 is fixedly installed on one side of the first mounting frame 601, and a first rotating shaft 603 is fixedly connected to the output end of the speed regulating motor 602, one end of the first rotating shaft 603 movably passes through the first mounting frame 601 and is fixedly installed with an exhaust fan blade 604, and an air quality sensor 605 is fixedly installed on one side of the dust reduction shell 4; The dust reduction mechanism 7 includes a second mounting frame 701, which is fixedly connected to the dust reduction shell 4. A driving motor 702 is fixedly installed on one side of the second mounting frame 701, and the output end of the driving motor 702 is fixedly connected to a second rotating shaft 703. One end of the second rotating shaft 703 movably passes through the second mounting frame 701 and is fixedly installed with a blowing fan blade 704. A square tube 705 is arranged in the dust reduction shell 4, and an atomizing nozzle 706 is installed on one side of the square tube 705. A water pump 707 is fixedly installed on the top of the dust reduction shell 4, and a dust detector 708 is fixedly installed on one side of the dust reduction shell 4.

[0025] like Figure 4 As shown, the height adjustment mechanism 2 includes a hydraulic cylinder 201, which is fixedly installed on the top of the mobile base 1. The output end of the hydraulic cylinder 201 is fixedly connected to a hydraulic rod 202, and the top of the hydraulic rod 202 is fixedly connected to a fixed platform 203. The ventilation shell 3 is fixedly connected to the top of the fixed platform 203. Through the coordination of the hydraulic cylinder 201 and the hydraulic rod 202, the vertical height positions of the ventilation shell 3 and the dust reduction shell 4 can be changed. In the working environment of the metal mine, it is ensured that the ventilation and dust reduction functions can be effectively exerted under the requirements of different working heights, thereby improving practicality.

[0026] like Figure 4 As shown, a telescopic rod 204 is fixedly connected to the top of the mobile base 1, and the top of the telescopic rod 204 is fixedly connected to the fixed platform 203. By setting the telescopic rod 204, additional lateral support force is provided for the ventilation shell 3 during the height adjustment process, thereby enhancing the stability of the entire structure, ensuring the smooth progress of ventilation and dust reduction operations, and also helping to extend the service life of the equipment.

[0027] like Figure 7As shown, a support frame 709 is fixedly connected to the inner side of the dust reduction shell 4, and a connecting pipe 710 is rotatably installed on the support frame 709. The support frame 709 provides a stable installation base and a rotation support point for the connecting pipe 710, so that the connecting pipe 710 can rotate smoothly in the dust reduction shell 4, thereby driving the square tube 705 to rotate, thereby expanding the spray range of the atomizing nozzle 706. During the dust reduction operation, the stable rotating structure ensures that the water mist can be evenly dispersed in various areas of the dust reduction shell 4, avoiding uneven spraying due to shaking or instability of the connecting pipe 710, thereby affecting the dust reduction effect.

[0028] like Figure 7 As shown, the outer surface of the connecting pipe 710 is fixedly sleeved with a first gear 711, and the outer surface of the second rotating shaft 703 is fixedly sleeved with a second gear 712. The first gear 711 is meshingly connected with the second gear 712. The meshing transmission between the first gear 711 and the second gear 712, the power of the second rotating shaft 703 driven by the driving motor 702 is transmitted to the connecting pipe 710 to rotate it. During the dust reduction process, no additional power source is required to drive the connecting pipe 710 to rotate, thereby reducing the cost of the device and ensuring the synchronization of the spray rotation and the blowing operation of the blowing fan blades 704, so that the water mist can be effectively diffused and combined with the dust under the action of the airflow, thereby improving the dust reduction effect.

[0029] like Figure 7 As shown, a U-shaped tube 713 is fixedly installed on the inner side of the dust reduction shell 4, and one end of the connecting tube 710 is connected to the interior of the square tube 705. By setting the U-shaped tube 713, the water flow distribution and transmission function is played, so that the water delivered from the water pump 707 is evenly distributed to the connecting tube 710, and then supplied to the square tube 705 and the atomizing nozzle 706. In the dust reduction operation, it is ensured that each atomizing nozzle 706 can obtain a stable water pressure and water volume, so that the spray effect is uniform.

[0030] like Figure 7 As shown, one end of the connecting pipe 710 is connected to the interior of the U-shaped pipe 713, and one end of the connecting pipe 710 is rotatably connected to the U-shaped pipe 713. By rotatably connecting the connecting pipe 710 and the U-shaped pipe 713, it is ensured that the connecting pipe 710 can normally receive the water transported by the U-shaped pipe 713 without affecting the rotational movement of the connecting pipe 710 itself, thereby facilitating the dust reduction operation to be carried out continuously and efficiently.

[0031] like Figure 2As shown, a water tank 714 is fixedly installed on the top of the dust reduction shell 4, and a water inlet pipe 715 is fixedly connected to the top of the water tank 714. A sealing cover 716 is threadedly connected to the outer top of the water inlet pipe 715. The water tank 714 provides a water reserve function for the dust reduction operation. The design of the water inlet pipe 715 and the sealing cover 716 facilitates the water replenishment operation of the water tank 714. The sealing cover 716 can prevent dust, impurities, etc. from entering the water tank 714 to pollute the water source, thereby ensuring the cleanliness of the water used for dust reduction, facilitating the normal operation of the atomizing nozzle, improving the dust reduction effect and extending the service life of the nozzle.

[0032] like Figure 7 and Figure 8 As shown, the output end of the water pump 707 is fixedly connected to a delivery pipe 717, and the end of the delivery pipe 717 away from the water pump 707 is movable through the dust suppression shell 4 and connected to the interior of the U-shaped tube 713. The input end of the water pump 707 is connected to the interior of the water tank 714 through a pipeline. By setting the delivery pipe 717, when the water pump 707 is working, the water in the water tank 714 can be pumped out and delivered to the U-shaped tube 713 through the delivery pipe 717, so as to be distributed to the atomizing nozzle 706.

[0033] like Figure 6 As shown, a support sleeve 718 is fixedly connected to the inner side of the dust suppression shell 4, and the support sleeve 718 is movably sleeved on the outer surface of the second rotating shaft 703. The support sleeve 718 is provided to support the second rotating shaft 703, so that the second rotating shaft 703 is more stable during the rotation process. When the driving motor 702 drives the second rotating shaft 703 to rotate, the support sleeve 718 can reduce the shaking and eccentricity of the second rotating shaft 703, which helps the fan blades 704 to generate airflow stably.

[0034] The usage and working principle of the device: During the preparation stage, the device is moved into the mine and located at a suitable ventilation position. According to the actual operation needs of the mine, the threshold values ​​of ventilation parameters are set through the PLC controller 5, such as the degree to which the air quality deteriorates to increase the ventilation volume, and the threshold values ​​of dust reduction parameters are set through the dust detector 708, such as the dust content at which dust reduction operations are performed, etc. Then, the water level of the water tank 714 is checked by unscrewing the sealing cover 716 on the top of the water inlet pipe 715. If the water level is insufficient, connect the water source for water replenishment. After the water replenishment is completed, tighten the sealing cover 716 to prevent dust and other impurities from entering. Then, the hydraulic cylinder 201 is started through the PLC controller 5, and the hydraulic rod 202 of the hydraulic cylinder 201 is extended and retracted, driving the fixed platform 203 to move up and down, and moving the ventilation shell 3 and the dust reduction shell 4 to a suitable working height.

[0035] During the ventilation stage, the speed regulating motor 602 is started through the PLC controller 5, and the speed regulating motor 602 drives the first rotating shaft 603 to rotate, and the first rotating shaft 603 drives the exhaust fan blades 604 to rotate. The rotating exhaust fan blades 604 extract the air in the mine and discharge it to the outside. At the same time, the air quality sensor 605 monitors the air quality of the surrounding environment in real time. When the air quality sensor 605 detects that the threshold of the air quality related parameter drops to a preset value, the air quality sensor 605 transmits a signal to the PLC controller 5. After receiving the signal, the PLC controller 5 sends an instruction to the speed regulating motor 602, and the speed regulating motor 602 increases the speed to accelerate the air circulation in the ventilation shell 3. When the air quality sensor 605 detects that the threshold of the air quality related parameter rises to a preset value, similarly, the speed regulating motor 602 reduces the speed according to the instruction of the PLC controller 5 to save energy.

[0036] In the dust reduction stage, the dust content in the surrounding environment is detected by the dust detector 708. When the dust detector 708 detects that the dust content in the surrounding environment is too high, the dust detector 708 transmits a signal to the PLC controller 5. After receiving the signal, the PLC controller 5 controls the water pump 707 and the drive motor 702 to start working. The water pump 707 pumps water from the water tank 714 through the pipeline, and then transports the water to the U-shaped pipe 713 in the dust reduction shell 4 through the delivery pipe 717. At the same time, the driving motor 702 drives the second rotating shaft 703 to rotate, and the blowing fan blades 704 on the second rotating shaft 703 start to rotate to generate airflow. The second gear 712 on the outer surface of the second rotating shaft 703 meshes with the first gear 711 on the outer surface of the connecting pipe 710 to drive the connecting pipe 710 to rotate. The connecting pipe 710 drives the square tube 705 and the atomizing nozzle 706 to rotate. The water in the U-shaped tube 713 flows into the connecting pipe 710 and then enters the square tube 705 and is sprayed out from the atomizing nozzle 706. Under the action of the airflow generated by the blowing fan blades 704, the atomized water mist is evenly blown out. The water mist can absorb dust in the air, so that the dust moves downward with the water mist. At the same time, the air adsorbed with dust can be extracted by the ventilation mechanism 6 and discharged to the outside, thereby reducing the smoke content in the mine. When the dust content is reduced to a set safety range, similarly, the PLC controller 5 controls the water pump 707 and the driving motor 702 to stop working.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent ventilation control system for metal mines, characterized in that: The device comprises a mobile base (1), wherein a height adjustment mechanism (2) is arranged on the top of the mobile base (1), a ventilation shell (3) is arranged on the top of the height adjustment mechanism (2), a dust reduction shell (4) is fixedly connected to the top of the ventilation shell (3), a PLC controller (5) is fixedly installed on one side of the ventilation shell (3), a wiring terminal of the PLC controller (5) is connected to a wiring port in the device, a ventilation mechanism (6) is arranged in the ventilation shell (3), and a dust reduction mechanism (7) is arranged in the dust reduction shell (4); The ventilation mechanism (6) comprises a first mounting frame (601), the first mounting frame (601) being fixedly connected to the inside of the ventilation shell (3), a speed regulating motor (602) being fixedly mounted on one side of the first mounting frame (601), an output end of the speed regulating motor (602) being fixedly connected to a first rotating shaft (603), one end of the first rotating shaft (603) movably passing through the first mounting frame (601) and being fixedly mounted with an exhaust fan blade (604), and an air quality sensor (605) being fixedly mounted on one side of the dust suppression shell (4); The dust reduction mechanism (7) comprises a second mounting frame (701), the second mounting frame (701) is fixedly connected to the dust reduction shell (4), a driving motor (702) is fixedly mounted on one side of the second mounting frame (701), an output end of the driving motor (702) is fixedly connected to a second rotating shaft (703), one end of the second rotating shaft (703) movably passes through the second mounting frame (701) and is fixedly mounted with a blowing fan blade (704), a square tube (705) is arranged in the dust reduction shell (4), an atomizing nozzle (706) is mounted on one side of the square tube (705), a water pump (707) is fixedly mounted on the top of the dust reduction shell (4), and a dust detector (708) is fixedly mounted on one side of the dust reduction shell (4).

2. The intelligent ventilation control system for metal mines according to claim 1 is characterized in that: The height adjustment mechanism (2) comprises a hydraulic cylinder (201), the hydraulic cylinder (201) being fixedly mounted on the top of the mobile base (1), the output end of the hydraulic cylinder (201) being fixedly connected to a hydraulic rod (202), the top end of the hydraulic rod (202) being fixedly connected to a fixed platform (203), and the ventilation shell (3) being fixedly connected to the top of the fixed platform (203).

3. The intelligent ventilation control system for metal mines according to claim 2 is characterized in that: A telescopic rod (204) is fixedly connected to the top of the mobile base (1), and the top end of the telescopic rod (204) is fixedly connected to the fixed platform (203).

4. The intelligent ventilation control system for metal mines according to claim 1 is characterized in that: A support frame (709) is fixedly connected to the inner side of the dust suppression shell (4), and a connecting pipe (710) is rotatably installed through the support frame (709).

5. The intelligent ventilation control system for metal mines according to claim 4 is characterized in that: A first gear (711) is fixedly sleeved on the outer surface of the connecting tube (710), a second gear (712) is fixedly sleeved on the outer surface of the second rotating shaft (703), and the first gear (711) is meshingly connected with the second gear (712).

6. The intelligent ventilation control system for metal mines according to claim 5 is characterized in that: A U-shaped tube (713) is fixedly mounted on the inner side of the dust suppression shell (4), and one end of the connecting tube (710) is connected to the inside of the square tube (705).

7. The intelligent ventilation control system for metal mines according to claim 6 is characterized by: One end of the connecting tube (710) is in communication with the interior of the U-shaped tube (713), and one end of the connecting tube (710) is rotatably connected to the U-shaped tube (713).

8. The intelligent ventilation control system for metal mines according to claim 1 is characterized by: A water tank (714) is fixedly mounted on the top of the dust suppression shell (4); a water inlet pipe (715) is fixedly connected to the top of the water tank (714); and a sealing cover (716) is threadedly connected to the outer top of the water inlet pipe (715).

9. The intelligent ventilation control system for metal mines according to claim 8, characterized in that: The output end of the water pump (707) is fixedly connected to a delivery pipe (717); one end of the delivery pipe (717) away from the water pump (707) movably passes through the dust suppression shell (4) and is connected to the interior of the U-shaped pipe (713); the input end of the water pump (707) is connected to the interior of the water tank (714) via a pipe.

10. The intelligent ventilation control system for metal mines according to claim 9, characterized in that: A support sleeve (718) is fixedly connected to the inner side of the dust suppression shell (4), and the support sleeve (718) is movably sleeved on the outer surface of the second rotating shaft (703).

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