Ventilation device for coal mine ventilation

Abstract

The invention relates to the technical field of ventilation, in particular to a ventilation device for coal mine ventilation, which comprises a ventilation outer shell, a fan blade assembly is arranged on the ventilation outer shell, the fan blade assembly comprises fan blades and a regulation and control turntable, and the multiple fan blades are obliquely mounted on the regulation and control turntable; the system mechanism is located on the regulation and control rotating disc, the cleaning system comprises a turnover mechanism, a rotation mechanism and a spray head, the turnover mechanism is used for driving the fan blades to turn over to the horizontal position from the vertical position, the rotation mechanism is used for driving the fan blades to rotate around the rotating shaft, and the spray head is used for cleaning the fan blades; the intelligent control system is used for controlling cooperative work of the turnover mechanism, the autorotation mechanism and the spray head, and automatic cleaning of the fan blades is achieved. According to the ventilation device for coal mine ventilation, through cooperative work of the turnover mechanism and the rotation mechanism, it is ensured that all parts of the fan blades can be cleaned, and the problem of dead corners in traditional cleaning is solved.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation, in particular to a ventilation device used for coal mine ventilation. Background Art

[0002] Coal mine ventilation devices are core equipment for safe production in mines, and their development history is closely related to the advancement of coal mining technology and safety needs. In the early days, coal mines mostly relied on natural ventilation, and the natural wind flow formed by the height difference of the wellhead diluted harmful gases. However, with the increase in mining depth and the improvement of mechanization, natural ventilation can no longer meet the needs. Modern coal mine ventilation systems are mainly mechanical ventilation, which uses main fans to build stable wind flow in underground tunnels to discharge harmful substances such as gas and dust, while ensuring oxygen supply.

[0003] During use, the existing ventilation devices for coal mine ventilation are prone to dust accumulation inside the fan, especially on the fan blades, due to the particularity of the usage scenarios. This not only affects the ventilation efficiency, but also increases maintenance costs and waste of resources. At the same time, due to the special installation position of the fan blades, disassembly, cleaning and maintenance are also very inconvenient. Therefore, in view of the above situation, there is an urgent need to develop a ventilation device for coal mine ventilation to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The object of the present invention is to provide a ventilation device for coal mine ventilation to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A ventilation device for coal mine ventilation, comprising a ventilation outer shell, on which a fan blade assembly is arranged, comprising a fan blade and a regulating turntable, wherein a plurality of the fan blades are obliquely mounted on the regulating turntable;

[0007] A cleaning system, wherein the system mechanism is located on the regulating turntable, and the cleaning system comprises a flipping mechanism, a self-rotation mechanism and a nozzle, wherein the flipping mechanism is used to drive the fan blades to flip from a vertical position to a horizontal position, the self-rotation mechanism is used to drive the fan blades to rotate around a rotating shaft, and the nozzle is used to clean the fan blades;

[0008] And an intelligent control system, which is used to control the coordinated work of the flip mechanism, the rotation mechanism and the nozzle to achieve automatic cleaning of the fan blades;

[0009] Among them, the intelligent control system supports two working modes:

[0010] Mode 1: After the fan blades flip to the specified angle, the self-rotation mechanism drives the fan blades to rotate parallel to the horizontal plane, and cleans both sides of the fan blades in turn;

[0011] Mode 2: After the fan blades flip over, the self-rotation mechanism continues to drive the fan blades to rotate during the entire cleaning process, achieving multi-directional flushing and avoiding cleaning dead corners.

[0012] As a further solution of the present invention: it also includes: a flip notch, the number of the flip notch is multiple, and the multiple flip notches are evenly opened on the regulating dial;

[0013] Wherein, each of the flip notches is provided with the flip mechanism;

[0014] and a soft protective part, wherein the soft protective part is located on the regulating turntable and abuts against the turning mechanism.

[0015] As a further solution of the present invention: the flip mechanism includes a flip motor and an angle sensor 1, the flip motor is used to drive the fan blade to flip, and the angle sensor 1 is used to monitor the flip angle θ of the fan blade in real time;

[0016] The intelligent control system is based on the target flip angle θ target and the current flip angle θ current , calculate the number of movement steps N of the flip motor flip , the calculation formula is:

[0017] ;

[0018] Where: Δθ step is the flip angle corresponding to each step;

[0019] When the flip angle θ is greater than 90 degrees, the intelligent control system controls the nozzle to perform sweeping and flushing within a preset angle range. The relationship with the flip angle θ is:

[0020] ;

[0021] in: is the basic sweeping angle range; k1 is the adjustment coefficient.

[0022] As a further solution of the present invention: the self-rotation mechanism is located on the flip mechanism, and the self-rotation mechanism includes a self-rotation motor and a second angle sensor, the self-rotation motor is used to drive the fan blades to rotate, and the second angle sensor is used to monitor the self-rotation angle α of the fan blades in real time;

[0023] In mode 1, the intelligent control system calculates the rotation angle α according to the flip angle θ, so that the fan blades rotate to be parallel to the horizontal plane. The calculation formula is:

[0024] ;

[0025] In mode 2, the intelligent control system dynamically adjusts the rotation angle α according to the cleaning requirements, so that the fan blades continue to rotate during the entire cleaning process.

[0026] As a further solution of the present invention: the angle of the nozzle Dynamically adjust according to the flip angle θ and the rotation angle α, the adjustment formula is:

[0027] ;

[0028] in: is the initial nozzle angle; k2 and k3 are adjustment coefficients.

[0029] As a further solution of the present invention: the intelligent control system automatically selects the working mode according to the degree of dirtiness of the fan blades:

[0030] When the dirt level is lower than the threshold, select mode 1 to clean both sides of the fan blades in turn;

[0031] When the dirt level is higher than the threshold, select Mode 2 to allow the fan blades to continue rotating during the entire cleaning process to achieve multi-directional flushing.

[0032] As a further solution of the present invention: it also includes: a synchronous control seat, the synchronous control seat is fixedly mounted on the control turntable, and a movable compartment is opened on the synchronous control seat;

[0033] A water inlet joint, which is located on the synchronous regulating seat and is connected to the nozzle;

[0034] And a synchronous adjustment component, which is connected to the nozzle and the movable chamber respectively and is used for adjusting the spraying angle of the nozzle.

[0035] As a further solution of the present invention: the synchronous adjustment component includes:

[0036] A sweeping notch, wherein the sweeping notch is provided on the synchronous regulating seat, a torsion shaft is rotatably installed in each of the sweeping notches, and the spray head is fixedly installed on the torsion shaft;

[0037] A telescopic member, wherein the telescopic member is located in the movable compartment;

[0038] A plurality of rope guide grooves are evenly arranged on the synchronous regulating seat and are connected to the movable chamber, and each rope guide groove is provided with a through hole;

[0039] And a pull rope, wherein there are multiple pull ropes, one end of each of the pull ropes is connected to the telescopic member, and the other end of each of the pull ropes is connected to the nozzle after passing through the multiple through holes.

[0040] As a further solution of the present invention: the intelligent control system comprises:

[0041] A main controller, used to control the flip mechanism, the rotation mechanism and the nozzle according to the sensor data;

[0042] The sensor module includes an angle sensor and a position sensor, which is used to monitor the status of the fan blades in real time;

[0043] Communication module, used to achieve remote monitoring and control;

[0044] And a fault warning module is used to monitor the working status of the flip mechanism, rotation mechanism and nozzle in real time, and issue a warning when an abnormality is detected.

[0045] As a further solution of the present invention: it also includes: a wastewater collection tank for collecting cleaning wastewater, and the wastewater collection tank also includes a filtering device for filtering the cleaning wastewater;

[0046] And a rotating shaft, wherein the rotating shaft is respectively connected with the ventilation outer shell and the regulating turntable.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] During the use of the ventilation device, when the fan blades need to be cleaned, the fan blades are in a vertical position under normal ventilation conditions. When cleaning is required, the intelligent control system starts the flipping mechanism to drive the fan blades to flip from a vertical position to a horizontal position. At the same time, the rotation mechanism drives the fan blades to rotate around the flipping mechanism, and the nozzle cleans the fan blades. The flipping mechanism and the rotation mechanism work together to ensure that all parts of the fan blades can be cleaned, solving the dead angle problem in traditional cleaning. The tilted setting of the nozzle, combined with the wastewater collection tank, can effectively guide the cleaning wastewater to flow out from the end of the fan blades, avoid wastewater accumulation at the root of the fan blades, and improve the cleaning efficiency. After the fan blades are flipped to a horizontal position, they can also be easily disassembled and replaced by the staff, which solves the problem of difficult disassembly and assembly caused by air duct restrictions in traditional designs, and provides convenience for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the three-dimensional structure of the ventilation device in an embodiment of the present invention.

[0050] Figure 2 It is a schematic diagram of the three-dimensional structure of the fan blade in an embodiment of the present invention.

[0051] Figure 3 It is a schematic diagram of the three-dimensional structure of the control dial in an embodiment of the present invention.

[0052] Figure 4 It is a schematic diagram of the three-dimensional structure of the synchronous control base in an embodiment of the present invention.

[0053] Figure 5 It is a schematic diagram of the three-dimensional structure of the flip notch in the embodiment of the present invention.

[0054] Figure 6 It is a schematic diagram of the three-dimensional structure of the flipping mechanism in an embodiment of the present invention.

[0055] Figure 7 It is a three-dimensional structural schematic diagram of the nozzle distribution in an embodiment of the present invention.

[0056] Figure 8 It is a schematic diagram of the three-dimensional structure of the movable warehouse in an embodiment of the present invention.

[0057] In the figure: 1-ventilation outer shell, 2-fan blades, 3-rotating shaft, 4-flipping mechanism, 5-rotation mechanism, 6-sprinkler, 7-regulating turntable, 8-intelligent control system, 9-water inlet joint, 10-synchronous regulating seat, 11-flipping notch, 12-soft protective part, 13-connecting hose, 14-sweeping notch, 15-telescopic part, 16-pull rope, 17-movable warehouse, 18-guide rope groove, 19-through hole, 20-torque rotating shaft, 21-wastewater collection tank. DETAILED DESCRIPTION

[0058] 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 described embodiments 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.

[0059] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0060] See also Figure 1-Figure 8 , a ventilation device for coal mine ventilation provided by an embodiment of the present invention comprises a ventilation outer shell 1, on which a fan blade assembly is arranged, including a fan blade 2 and a regulating dial 7, and a plurality of the fan blades 2 are obliquely mounted on the regulating dial 7;

[0061] A cleaning system, wherein the system mechanism is located on the regulating turntable 7, and the cleaning system comprises a flipping mechanism 4, a self-rotation mechanism 5 and a nozzle 6, wherein the flipping mechanism 4 is used to drive the fan blade 2 to flip from a vertical position to a horizontal position, the self-rotation mechanism 5 is used to drive the fan blade 2 to rotate around the rotating shaft 3, and the nozzle 6 is used to clean the fan blade 2;

[0062] and an intelligent control system 8 for controlling the coordinated work of the flip mechanism 4, the rotation mechanism 5 and the nozzle 6 to achieve automatic cleaning of the fan blades 2;

[0063] The intelligent control system 8 supports two working modes:

[0064] Mode 1: After the fan blade 2 is flipped to a specified angle, the rotation mechanism 5 drives the fan blade 2 to rotate parallel to the horizontal plane, and cleans the two sides of the fan blade 2 in turn;

[0065] Mode 2: After the fan blades 2 are turned over, the rotation mechanism 5 continuously drives the fan blades 2 to rotate during the entire cleaning process, thereby achieving multi-directional washing and avoiding cleaning dead corners.

[0066] During the use of the ventilation device, when the fan blade 2 needs to be cleaned, the fan blade 2 is in a vertical position under normal ventilation conditions. When cleaning is required, the intelligent control system 8 starts the flip mechanism 4 to drive the fan blade 2 to flip from a vertical position to a horizontal position. At the same time, the rotation mechanism 5 drives the fan blade 2 to rotate around the flip mechanism 4, and the nozzle 6 cleans the fan blade 2. The flip mechanism 4 and the rotation mechanism 5 work together to ensure that all parts of the fan blade 2 can be cleaned, solving the dead angle problem in traditional cleaning. The nozzle 6 is tilted and combined with the wastewater collection tank 21, it can effectively guide the cleaning wastewater to flow out from the end of the fan blade 2, avoid wastewater accumulation at the root of the fan blade 2, and improve the cleaning efficiency. After the fan blade 2 is flipped to a horizontal position, it is also convenient for the staff to disassemble and replace it, which solves the problem of difficult disassembly and assembly caused by air duct restrictions in traditional designs, and provides convenience for the staff.

[0067] In one embodiment of the present invention, please refer to FIG. Figure 8 , further comprising: a flip notch 11, the number of the flip notch 11 is multiple, and the multiple flip notches 11 are evenly opened on the regulating dial 7;

[0068] Wherein, each of the flip notches 11 is provided with the flip mechanism 4;

[0069] and a soft protective portion 12 , wherein the soft protective portion 12 is located on the regulating dial 7 and abuts against the turning mechanism 4 .

[0070] Among them, a plurality of flip notches 11 are evenly arranged on the rotating shaft 3, which is convenient for the installation and operation of the flip mechanism 4, and ensures that the fan blade 2 can flip smoothly. The soft protective part 12 can be made of rubber or sponge material, and abuts against the flip mechanism 4. During the rotation process, it plays a buffering and protective role, reduces mechanical wear during the flip process, prolongs the service life of the equipment, and avoids interfering with the rotation of the flip mechanism 4. At the same time, it can play a sealing role during the operation of the fan blade 2.

[0071] The flip mechanism 4 includes a flip motor and an angle sensor 1, wherein the flip motor is used to drive the fan blade 2 to flip, and the angle sensor 1 is used to monitor the flip angle θ of the fan blade 2 in real time;

[0072] The intelligent control system 8 is based on the target flip angle θ target and the current flip angle θ current , calculate the number of movement steps N of the flip motor flip , the calculation formula is:

[0073] ;

[0074] Where: Δθ step is the flip angle corresponding to each step;

[0075] When the flip angle θ is greater than 90 degrees, the intelligent control system 8 controls the nozzle to perform sweeping and flushing within a preset angle range. The relationship with the flip angle θ is:

[0076] ;

[0077] in: is the basic sweeping angle range; k1 is the adjustment coefficient.

[0078] The flip motor drives the fan blade 2 to flip to the target angle θ according to the calculation result of the intelligent control system 8. target . Angle sensor 1 monitors the flip angle θ in real time to ensure flip accuracy. When the flip angle θ is greater than 90 degrees, the nozzle 6 reciprocates up and down within the preset angle range to achieve sweeping and flushing. The flip motor and angle sensor 1 work together to ensure that the fan blades 2 can be accurately flipped to the target angle, thereby improving the accuracy of cleaning. When the flip angle θ is greater than 90 degrees, the nozzle 6 performs sweeping and flushing in a larger range, expanding the cleaning range and improving the cleaning efficiency. Through the dynamic adjustment of the intelligent control system 8, the cleaning effect and wastewater drainage are optimized, and the intelligence level of the equipment is improved.

[0079] In one embodiment of the present invention, see Figure 1-Figure 8 , the self-rotation mechanism 5 is located on the flip mechanism 4, and the self-rotation mechanism 5 includes a self-rotation motor and an angle sensor 2, the self-rotation motor is used to drive the fan blade 2 to rotate, and the angle sensor 2 is used to monitor the rotation angle α of the fan blade 2 in real time;

[0080] In mode 1, the intelligent control system 8 calculates the rotation angle α according to the flip angle θ, so that the fan blade 2 rotates to be parallel to the horizontal plane. The calculation formula is:

[0081] ;

[0082] In mode 2, the intelligent control system 8 dynamically adjusts the rotation angle α according to the cleaning requirements, so that the fan blades 2 continue to rotate during the entire cleaning process.

[0083] The angle of the nozzle 6 Dynamically adjust according to the flip angle θ and the rotation angle α, the adjustment formula is:

[0084] ;

[0085] in: is the initial nozzle angle; k2 and k3 are adjustment coefficients.

[0086] In mode 1, the self-rotating motor drives the fan blade 2 to rotate parallel to the horizontal plane according to the calculation results of the intelligent control system 8, and the nozzle 6 cleans the two sides of the fan blade 2 in sequence. In mode 2, the self-rotating motor continuously drives the fan blade 2 to rotate during the entire cleaning process, and the nozzle 6 performs multi-directional flushing. Mode 1 is suitable for light dirt and has high cleaning efficiency; mode 2 is suitable for heavy dirt and has more thorough cleaning. Rotation angle α and nozzle 6 scanning angle The angle of the nozzle 6 is dynamically adjusted according to the change of the rotation angle to ensure that the cleaning water covers all parts of the fan blade 2.

[0087] Angle of nozzle 6 According to the flip angle θ and the rotation angle α, the dynamic adjustment is made to ensure that the cleaning water can cover all parts of the fan blade 2. The intelligent control system 8 dynamically adjusts the angle of the nozzle 6 according to the real-time monitoring of the flip angle θ and the rotation angle α. .

[0088] In one embodiment of the present invention, the intelligent control system 8 automatically selects a working mode according to the degree of dirtiness of the fan blades 2:

[0089] When the dirt level is lower than the threshold, mode 1 is selected to clean both sides of the fan blade 2 in sequence;

[0090] When the dirt level is higher than the threshold, mode 2 is selected to make the fan blade 2 rotate continuously during the entire cleaning process to achieve multi-directional washing.

[0091] See also Figure 1-Figure 8 , further comprising: a synchronous regulating seat 10, wherein the synchronous regulating seat 10 is fixedly mounted on the regulating turntable 7, and a movable compartment 17 is provided on the synchronous regulating seat 10;

[0092] A water inlet connector 9, which is located on the synchronous control seat 10 and is connected to the nozzle 6;

[0093] And a synchronous adjustment component, which is connected to the nozzle 6 and the movable chamber 17 respectively, and is used to adjust the spray angle of the nozzle 6.

[0094] The synchronous adjustment component comprises:

[0095] A sweeping notch 14, wherein the sweeping notch 14 is provided on the synchronous regulating seat 10, wherein a torsion shaft 20 is rotatably mounted in each of the sweeping notches 14, and the spray head 6 is fixedly mounted on the torsion shaft 20;

[0096] A telescopic member 15, wherein the telescopic member 15 is located in the movable compartment 17;

[0097] A plurality of guide rope grooves 18 are evenly arranged on the synchronous regulating seat 10 and communicated with the movable chamber 17 , and a through hole 19 is arranged in each guide rope groove 18 ;

[0098] And a pull rope 16, the number of the pull rope 16 is multiple, one end of the multiple pull ropes 16 is connected to the telescopic member 15, and the other end of the pull rope 16 passes through the multiple through holes 19 respectively and then is connected to the nozzle 6.

[0099] The spray angle of the nozzle 6 is adjusted by the pull cord 16 and the telescopic member 15, wherein the telescopic member 15 can be in the form of an electric telescopic rod. During the reciprocating extension and retraction process of the telescopic member 15, the pull cord 16 can be pulled or loosened, and the torsion action of the torsion shaft 20 can be coordinated, wherein the torsion shaft 20 can be in the form of a torsion spring, so that when the pull cord 16 is relaxed, the nozzle 6 is convenient to reset, thereby ensuring that the cleaning water can cover all parts of the fan blade 2. The water inlet connector 9 provides a cleaning water source for the nozzle 6, which can be externally connected during cleaning, and will not be described in detail here. At the same time, when the fan blade 2 continues to rotate for cleaning, the reciprocating motion of the telescopic member 15 can make the nozzle 6 swing within a certain angle range, thereby forming a sweeping cleaning of the fan blade 2 to ensure the degree of cleaning.

[0100] In one embodiment of the present invention, the intelligent control system 8 comprises:

[0101] A main controller, used to control the flip mechanism 4, the rotation mechanism 5 and the nozzle 6 according to the sensor data;

[0102] The sensor module includes an angle sensor and a position sensor, and is used to monitor the status of the fan blade 2 in real time;

[0103] Communication module, used to achieve remote monitoring and control;

[0104] And a fault warning module is used to monitor the working status of the turning mechanism 4, the rotation mechanism 5 and the nozzle 6 in real time, and issue a warning when an abnormality is detected.

[0105] It also includes: a wastewater collection tank 21 for collecting cleaning wastewater, and the wastewater collection tank 21 also includes a filtering device for filtering the cleaning wastewater;

[0106] And a rotating shaft 3, wherein the rotating shaft 3 is connected to the ventilation outer shell 1 and the regulating dial 7 respectively.

[0107] The cleaning wastewater is collected by the wastewater collecting tank 21 under the action of gravity, and the filtering device filters the wastewater to realize the recycling of water resources.

[0108] In summary, the specific control process of the intelligent control system 8 is as follows:

[0109] Start: The system starts and enters the initialization state.

[0110] Detect the status of the fan blades: The current status of the fan blades 2 is detected by the sensor module, including the flip angle θ, the rotation angle α and the degree of dirtiness.

[0111] Determine the degree of dirtiness: if the degree of dirtiness is lower than the threshold, select mode 1; if the degree of dirtiness is higher than the threshold, select mode 2.

[0112] Among them, the control process of mode 1: control the flip mechanism 4 to flip the fan blade 2 to a specified angle θ target The self-rotating mechanism 5 is controlled to rotate the fan blade 2 to be parallel to the horizontal plane. The nozzle 6 is controlled to clean the two sides of the fan blade 2 in sequence. After the cleaning is completed, the fan blade 2 is returned to the initial position.

[0113] Mode 2 control process: Control the flip mechanism 4 to flip the fan blade 2 to the specified angle θ target The self-rotation mechanism 5 is controlled to continuously drive the fan blade 2 to rotate during the entire cleaning process. The nozzle 6 is controlled to perform multi-directional washing on the fan blade 2. After the cleaning is completed, the fan blade 2 is returned to the initial position.

[0114] Fault detection and early warning: Real-time monitoring of the working status of the flip mechanism 4, the rotation mechanism 5 and the nozzle 6. If an abnormality is detected, the fault early warning module is triggered and an alarm is issued.

[0115] End: The cleaning task is completed and the system enters standby mode.

[0116] It should be noted that in the present invention, unless otherwise clearly specified and limited, the terms "slide", "rotate", "fix", "have" and the like should be understood in a broad sense, for example, it can be a welding connection, a bolt connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0117] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A ventilation device for coal mine ventilation, comprising a ventilation outer shell, characterized in that: The ventilation outer shell is provided with a fan blade assembly, including fan blades and a regulating turntable, and a plurality of the fan blades are tiltedly mounted on the regulating turntable; A cleaning system, wherein the system mechanism is located on the regulating turntable, and the cleaning system comprises a flipping mechanism, a self-rotation mechanism and a nozzle, wherein the flipping mechanism is used to drive the fan blades to flip from a vertical position to a horizontal position, the self-rotation mechanism is used to drive the fan blades to rotate around a rotating shaft, and the nozzle is used to clean the fan blades; And an intelligent control system, which is used to control the coordinated work of the flip mechanism, the rotation mechanism and the nozzle to achieve automatic cleaning of the fan blades; Among them, the intelligent control system supports two working modes: Mode 1: After the fan blades flip to the specified angle, the self-rotation mechanism drives the fan blades to rotate parallel to the horizontal plane, and cleans both sides of the fan blades in turn; Mode 2: After the fan blades flip over, the self-rotation mechanism continues to drive the fan blades to rotate during the entire cleaning process, achieving multi-directional flushing and avoiding cleaning dead corners.

2. The ventilation device for coal mine ventilation according to claim 1, characterized in that: Also includes: Flip Notches, the number of the flip notches is multiple, and the multiple flip notches are evenly opened on the regulating dial; Wherein, each of the flip notches is provided with the flip mechanism; and a soft protective part, wherein the soft protective part is located on the regulating turntable and abuts against the turning mechanism.

3. The ventilation device for coal mine ventilation according to claim 2, characterized in that: The flip mechanism includes a flip motor and an angle sensor 1, wherein the flip motor is used to drive the fan blades to flip, and the angle sensor 1 is used to monitor the flip angle θ of the fan blades in real time; The intelligent control system is based on the target flip angle θ target and the current flip angle θ current , calculate the number of movement steps N of the flip motor flip , the calculation formula is: ； Where: Δθ step is the flip angle corresponding to each step; When the flip angle θ is greater than 90 degrees, the intelligent control system controls the nozzle to perform sweeping and flushing within a preset angle range. The relationship with the flip angle θ is: ； in: is the basic sweeping angle range; k1 is the adjustment coefficient.

4. The ventilation device for coal mine ventilation according to claim 3, characterized in that: The self-rotation mechanism is located on the flip mechanism, and the self-rotation mechanism includes a self-rotation motor and a second angle sensor, wherein the self-rotation motor is used to drive the fan blades to rotate, and the second angle sensor is used to monitor the self-rotation angle α of the fan blades in real time; In mode 1, the intelligent control system calculates the rotation angle α according to the flip angle θ, so that the fan blades rotate to be parallel to the horizontal plane. The calculation formula is: ； In mode 2, the intelligent control system dynamically adjusts the rotation angle α according to the cleaning requirements, so that the fan blades continue to rotate during the entire cleaning process.

5. The ventilation device for coal mine ventilation according to claim 4, characterized in that: The angle of the nozzle Dynamically adjust according to the flip angle θ and the rotation angle α, the adjustment formula is: ； in: is the initial nozzle angle; k2 and k3 are adjustment coefficients.

6. The ventilation device for coal mine ventilation according to any one of claims 1 to 5, characterized in that: The intelligent control system automatically selects the working mode according to the degree of dirtiness of the fan blades: When the dirt level is lower than the threshold, select mode 1 to clean both sides of the fan blades in turn; When the dirt level is higher than the threshold, select Mode 2 to allow the fan blades to continue rotating during the entire cleaning process to achieve multi-directional flushing.

7. The ventilation device for coal mine ventilation according to claim 1, characterized in that: Also includes: A synchronous regulating seat, which is fixedly mounted on the regulating turntable and has a movable compartment; A water inlet joint, which is located on the synchronous regulating seat and is connected to the nozzle; And a synchronous adjustment component, which is connected to the nozzle and the movable chamber respectively and is used for adjusting the spraying angle of the nozzle.

8. The ventilation device for coal mine ventilation according to claim 7, characterized in that: The synchronous adjustment component comprises: A sweeping notch, wherein the sweeping notch is provided on the synchronous regulating seat, a torsion shaft is rotatably installed in each of the sweeping notches, and the spray head is fixedly installed on the torsion shaft; A telescopic member, wherein the telescopic member is located in the movable compartment; A plurality of rope guide grooves are evenly arranged on the synchronous regulating seat and are connected to the movable chamber, and each rope guide groove is provided with a through hole; And a pull rope, wherein there are multiple pull ropes, one end of each of the pull ropes is connected to the telescopic member, and the other end of each of the pull ropes is connected to the nozzle after passing through the multiple through holes.

9. The ventilation device for coal mine ventilation according to claim 1, characterized in that: The intelligent control system comprises: A main controller, used to control the flip mechanism, the rotation mechanism and the nozzle according to the sensor data; The sensor module includes an angle sensor and a position sensor, which is used to monitor the status of the fan blades in real time; Communication module, used to achieve remote monitoring and control; And a fault warning module is used to monitor the working status of the flip mechanism, rotation mechanism and nozzle in real time, and issue a warning when an abnormality is detected.

10. The ventilation device for coal mine ventilation according to claim 1, characterized in that: Also includes: A wastewater collection tank, used to collect cleaning wastewater, the wastewater collection tank also includes a filtering device, used to filter the cleaning wastewater; And a rotating shaft, wherein the rotating shaft is respectively connected with the ventilation outer shell and the regulating turntable.

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