Mine ventilation device with dust falling and spraying functions

Abstract

The utility model relates to the technical field of mine dust removal and ventilation equipment, in particular to a mine ventilation device with dust falling and spraying functions, which comprises an air duct frame with a notch, a turning plate movably arranged in the notch and used for guiding airflow blown out by the air duct frame, and a nozzle movably arranged at the end of the turning plate. A swing plate which makes contact with the turning plate and abuts against the turning plate to adjust the deflection angle is arranged at the end of the spray head. According to the mine ventilation device with the dust falling and spraying functions, the multiple turning plates are driven by the spray head to deflect, the diffusion and gathering states of airflow blown out by the air duct frame are changed by adjusting the deflection angles of the multiple turning plates, and water vapor sprayed out by the spray head and the airflow guided and blown out by the turning plates are mixed, separated and diffused in an auxiliary mode; according to the invention, various spraying and dust falling functions are realized, and more efficient dust falling at accurate positions can be realized by adjusting the overall deflection angle of the air duct frame, so that the field treatment efficiency is higher, the operation is more convenient, and various dust falling requirements can be met.

Description

Technical Field

[0001] This utility model relates to the technical field of mine dust removal and ventilation equipment, specifically to a mine ventilation device with dust suppression spraying function. Background Technology

[0002] Mining operations typically generate a large amount of dust in the air, so atomizing nozzles are needed to spray and suppress dust. At the same time, fans are needed to ventilate the mine to ensure a safe environment inside the mine.

[0003] According to the publication (announcement) number: CN219647045U, the publication (announcement) date: 2023-09-08, a ventilation spray device for dust removal in mines is disclosed, including a tubular air duct with multiple nozzles, and air containing dust is drawn into the duct through the duct, and the dust is sprayed down inside the duct to achieve ventilation and dust reduction.

[0004] In existing technologies, including the aforementioned patents, when the mine space is large and the dust floating in the mine spreads over a large area, the suction method cannot meet the requirements for treating large areas of dust. On the market, large fans are used for ventilation, and water sprayers are used to spray upwards to mix and suppress the floating dust. However, the spraying position needs to be adjusted during the process to ensure that the fan blows out the water vapor containing dust. Therefore, both types of equipment need to be constantly adjusted, which increases the number of personnel and equipment required, while also prolonging the actual operation time and reducing the processing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a mine ventilation device with dust suppression spraying function, aiming to solve the problems mentioned above.

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

[0007] A mine ventilation device with dust suppression spraying function includes a ventilation duct frame with an opening, a flap that is movably installed in the opening to guide the airflow from the ventilation duct frame, and a nozzle that is movably installed at the end of the flap;

[0008] The nozzle end is provided with a swing plate that contacts the flip plate and pushes against the flip plate with an adjustable deflection angle.

[0009] Preferably, a pull rope is fixedly installed at the end of the swing plate, and a transmission component that works in conjunction with the pull rope is provided on the wind tunnel frame.

[0010] Preferably, it also includes a connecting frame connected to the flip panel, and the connecting frame deflected to a predetermined position unlocks the flip panel to reset.

[0011] Preferably, a rotating shaft is fixedly installed in the notch, and the connecting frame rotates on the rotating shaft.

[0012] Preferably, a card block is fixedly installed inside the connecting frame, and a card slot is provided on the side wall of the flip plate for the card block to unlock and slide.

[0013] Preferably, a trigger block is fixedly installed in the notch, and the end of the flap is provided with a sliding contact end that abuts against the trigger block, and the flap is unlocked by sliding against the trigger block.

[0014] Preferably, the side wall of the flap is also provided with a sliding groove for the movement of the rotating shaft.

[0015] Preferably, an elastic element that abuts against the rotating shaft is fixedly installed inside the groove.

[0016] Preferably, a housing located outside the transmission assembly is fixedly installed on the wind tunnel frame.

[0017] Preferably, the pull rope is a steel wire rope.

[0018] In the above technical solution, the mine ventilation device with dust suppression spraying function provided by this utility model has the following beneficial effects: by driving multiple flaps to deflect through the nozzle, the deflection angle of multiple flaps can be adjusted to change the diffusion and convergence state of the airflow blown out of the ventilation duct frame, and the water vapor sprayed from the nozzle and the airflow guided by the flaps can be mixed, separated and assisted in diffusion, so as to realize multiple dust suppression spraying functions. Moreover, by adjusting the overall deflection angle of the ventilation duct frame, more efficient and precise dust suppression can be achieved, making the on-site treatment more efficient, the operation more convenient, and meeting various dust suppression needs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 An isometric schematic diagram of a wind tunnel frame containing multiple nozzles provided for an embodiment of this utility model;

[0021] Figure 2 A side sectional view of a wind tunnel frame containing multiple nozzles provided for an embodiment of this utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A;

[0023] Figure 4A schematic diagram of the assembly of a single flap, connecting frame, nozzle, and air duct frame provided for an embodiment of this utility model;

[0024] Figure 5 An exploded view of the flap, connecting frame, nozzle, and rotating shaft provided in the embodiments of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Air duct frame; 11. Housing; 2. Transmission assembly; 3. Notch; 31. Trigger block; 32. Rotating shaft; 4. Flip plate; 41. Slide groove; 42. Elastic element; 43. Contact end; 44. Slot; 5. Connecting frame; 51. Locking block; 6. Nozzle; 61. Swing plate; 62. Pull rope. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-5 As shown, a mine ventilation device with dust suppression spraying function includes a ventilation duct frame 1 with a notch 3, a flap 4 for diverting airflow from the ventilation duct frame 1 is movably installed in the notch 3, and a nozzle 6 is movably installed at the end of the flap 4.

[0029] The nozzle 6 has a swing plate 61 at its end that contacts the flip plate 4 and pushes against the flip plate 4 with an adjustable deflection angle.

[0030] Specifically, the air duct frame 1 is equipped with blades driven by a motor, the nozzle 6 is used to spray atomized water at its end, and the pipe connection of the nozzle 6 is located on the air duct frame 1. The driving method and water delivery method are existing technologies and will not be described in detail here.

[0031] Furthermore, the flap 4 is arranged circumferentially at the air outlet of the air duct frame 1, and the swing plate 61 is integrally formed at the end of the nozzle 6. The multiple nozzles 6 are clustered together in the default state, and the swing plate 61 and the flap 4 maintain an angle. After the nozzle 6 deflects to the end position, the swing plate 61 abuts against the surface of the flap 4 and the two are connected as one, so that the nozzle 6 that continues to deflect drives the flap 4 to deflect.

[0032] By adjusting the deflection angle of the multiple flaps 4 driven by the nozzles 6, the diffusion and convergence state of the airflow blown out by the duct frame 1 can be changed, resulting in the following states: First, the flaps 4 are in the default state, deflected and converged, and the distributed nozzles 6 send water vapor into the airflow path, achieving water vapor mixing and spraying; Second, when the nozzles 6 are deflected to the horizontal, the flaps 4 are still deflected and converged, which allows water vapor and airflow to begin to separate, increasing the water vapor diffusion area, while the airflow is used for ventilation; Third, when the flaps 4 are deflected to the horizontal, the nozzles 6 are open to diffuse water vapor. At this time, the water vapor spraying area is larger, and the airflow is used to assist in water vapor diffusion, thus adapting to a larger area of ​​dust suppression and ventilation work. This allows a single device to achieve multiple spraying dust suppression and ventilation functions, making on-site treatment more efficient, operation more convenient, and meeting various dust suppression needs.

[0033] As a further embodiment of this utility model, a pull rope 62 is fixedly installed at the end of the swing plate 61, and a transmission component 2 that is engaged with the pull rope 62 is provided on the wind duct frame 1.

[0034] Specifically, the transmission component 2 is a worm gear drive, and the worm gear rotates on the outer side wall of the shaft integrally formed at the end of the wind tunnel frame 1, while the end of the pull rope 62 is fixed to the side wall of the worm gear using a traditional tie-on method.

[0035] Furthermore, the outer wall of the ventilation duct frame 1 is integrally formed with a support block for the pull rope 62 to pass through, so that the support block guides and limits the pull rope 62.

[0036] The worm gear rotates and drives the ends of multiple pull ropes 62 to circumferentially pull, thereby causing the pull ropes 62 to pull the nozzle 6 to deflect.

[0037] As another embodiment of this utility model, it also includes a connecting frame 5 connected to the flip plate 4, and the connecting frame 5 deflected to a predetermined position unlocks the flip plate 4 and resets it.

[0038] Specifically, the nozzle 6 is hinged to the end of the U-shaped connecting frame 5. When the swing plate 61 abuts against the flip plate 4, it also abuts against the end face of the connecting frame 5.

[0039] During the deflection of the nozzle 6, the connecting frame 5 and the flap 4 are deflected synchronously. When the flap 4 deflects to the predetermined position, it is disconnected from the connecting frame 5. At this time, the flap 4 is reset and gathered under the action of the torsion spring. This forms the fourth dust suppression function, that is, the airflow and water vapor are completely separated. The airflow can focus on ventilation, while the water vapor has a larger spray area. The nozzle 6 can also be closed to gather the airflow for ventilation. Moreover, the airflow blowing rate is slower than the gathering rate of the plate nozzle 6 at the end of the flap 4. Therefore, when the nozzle 6 is closed to spray water in one of the above gathering states, the airflow with different flow rates can be adapted to the needs of the site.

[0040] As another embodiment further provided by this utility model, a rotating shaft 32 is fixedly installed in the notch 3, and the connecting frame 5 rotates on the rotating shaft 32.

[0041] Specifically, the rotating shaft 32 is integrally formed in the notch 3, and the two rotating shafts 32 clamp the flap 4 to limit it, and the rotating shaft 32 passes through the connecting frame 5.

[0042] The two pivots 32 make the connecting frame 5 more stable during the deflection process, and also keep the connecting frame 5 stable after it has deflected to the maximum angle.

[0043] As another embodiment of this utility model, a card block 51 is fixedly installed on the inner side of the connecting frame 5, and a card slot 44 is provided on the side wall of the flip plate 4 for the card block 51 to unlock and slide.

[0044] Specifically, the card slot 44 is an L-shaped channel, which allows the card block 51 to slide out and unlock from a shorter section of the channel in the card slot 44.

[0045] The flap 4, which is deflected to a predetermined position, moves actively along the end face of the connecting frame 5, and then the card block 51 slides out of the card slot 44, thereby unlocking and resetting the flap 4.

[0046] As a further embodiment of this utility model, a trigger block 31 is fixedly installed in the notch 3, and the end of the flap 4 is provided with a sliding contact end 43 that abuts against the trigger block 31, and the sliding flap 4 causes the slot 44 to be unlocked.

[0047] Specifically, the contact surfaces of the trigger block 31 and the contact end 43 are both rounded to reduce sliding friction.

[0048] When the contact end 43 is offset downward, it actively abuts against the trigger block 31, so that the fixed stroke of the trigger block 31 is transmitted to the contact end 43, causing the flap 4 to move along the end face of the connecting frame 5 until the card block 51 slides out from the corner position of the card slot 44, thereby unlocking the flap 4 and concentrating the airflow on the wind duct frame 1.

[0049] As another embodiment of this utility model, the side wall of the flip plate 4 is also provided with a sliding groove 41 for the movement of the rotating shaft 32.

[0050] The slide groove 41 allows the rotating shaft 32 to have space for both rotation and movement, thus satisfying the displacement and unlocking deflection of the flap 4, and also ensuring the stability of the flap 4 during the driven deflection.

[0051] As another embodiment of this utility model, an elastic element 42 that abuts against the rotating shaft 32 is fixedly installed in the slide groove 41.

[0052] Specifically, the elastic element 42 is an arc-shaped elastic metal sheet, and the elastic element 42 uses its deformation ability to resist the rotating shaft 32 in the default state, causing the multiple flaps 4 to be gathered together in the default state.

[0053] During the deflection process of the flap 4, the elastic element 42 continues to deform, thus the elastic element 42 provides pressure parallel to and perpendicular to the end face of the connecting frame 5, thereby ensuring that the flap 4 can return to its gathered shape when unlocked.

[0054] As another embodiment of this utility model, a housing 11 located outside the transmission assembly 2 is fixedly installed on the duct frame 1.

[0055] Specifically, the housing 11 is detachably installed at the end of the air duct frame 1 using bolts and nuts, and the housing 11 has an angle-adjustable main support, which is in contact with the ground. The housing 11 and its installation and angle adjustment are existing technologies and will not be described in detail here.

[0056] The housing 11 protects the transmission assembly 2 and also allows for directional adjustment of the air duct frame 1, thereby enabling precise dust suppression of airflow and water vapor.

[0057] As another embodiment further provided in this utility model, the pull rope 62 is specifically a steel wire rope.

[0058] The steel wire rope is used to make the pull rope 62 stronger, so that it is fixed and safe during the pulling process.

[0059] Working principle: During the rotation of the worm gear, multiple pull ropes 62 are driven to circumferentially pull the ends, which in turn causes the pull ropes 62 to pull the nozzle 6 to deflect. The deflection of the nozzle 6 causes the flap 4 to deflect, realizing a variety of different airflow and water vapor combination functions. Then, when the connecting frame 5 reaches the designated position, the flap 4 actively moves along the end face of the connecting frame 5, and then the locking block 51 actively slides out of the locking slot 44, thus realizing the unlocking and reset of the flap 4, realizing another dust suppression function.

[0060] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mine ventilation device with dust suppression spraying function, characterized in that, It includes a duct frame (1) with a notch (3), in which a flap (4) is movably installed to guide the airflow of the duct frame (1), and a nozzle (6) is movably installed at the end of the flap (4). The nozzle (6) is provided with a swing plate (61) at its end, which contacts the flip plate (4) and pushes against the flip plate (4) at an adjustable deflection angle.

2. A mine ventilation device with dust suppression spraying function according to claim 1, characterized in that, The end of the swing plate (61) is fixedly installed with a pull rope (62), and the wind duct frame (1) is provided with a transmission component (2) that works in conjunction with the pull rope (62).

3. A mine ventilation device with dust suppression spraying function according to claim 1, characterized in that, It also includes a connecting frame (5) connected to the flip plate (4), and the connecting frame (5) deflected to a predetermined position unlocks the flip plate (4) and resets it.

4. A mine ventilation device with dust suppression spraying function according to claim 3, characterized in that, A rotating shaft (32) is fixedly installed in the notch (3), and the connecting frame (5) rotates on the rotating shaft (32).

5. A mine ventilation device with dust suppression spraying function according to claim 4, characterized in that, A card block (51) is fixedly installed on the inner side of the connecting frame (5), and a card slot (44) is provided on the side wall of the flip plate (4) for the card block (51) to unlock and slide.

6. A mine ventilation device with dust suppression spraying function according to claim 5, characterized in that, A trigger block (31) is fixedly installed in the notch (3), and the end of the flap (4) is provided with a sliding contact end (43) that abuts against the trigger block (31). When the flap (4) slides against the trigger block (31), the slot (44) is unlocked.

7. A mine ventilation device with dust suppression spraying function according to claim 6, characterized in that, The side wall of the flap (4) is also provided with a groove (41) for the movement of the rotating shaft (32).

8. A mine ventilation device with dust suppression spraying function according to claim 7, characterized in that, An elastic element (42) that abuts against the rotating shaft (32) is fixedly installed inside the groove (41).

9. A mine ventilation device with dust suppression spraying function according to claim 2, characterized in that, The casing (11) located outside the transmission assembly (2) is fixedly installed on the wind duct frame (1).

10. A mine ventilation device with dust suppression spraying function according to claim 2, characterized in that, The pull rope (62) is specifically a steel wire rope.

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