Mine ventilation equipment for mine safety production

Abstract

The invention discloses mine ventilation equipment for mine safety production, and relates to the technical field of mine ventilation, the mine ventilation equipment comprises a box body, the outer wall of the bottom of the box body is fixedly connected with a fixing frame, one side of the box body is provided with a fixing cylinder, the interior of the fixing cylinder is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with a shaft sleeve; and fan blades which are circularly distributed at equal intervals are fixedly connected to the outer wall of the circumference of the shaft sleeve, a connecting pipe is fixedly connected to the interior of the box body, and one end of the connecting pipe is fixedly connected with the fixing cylinder through a bolt. According to the device, negative pressure ventilation in the mine laneway is achieved through negative pressure suction force, gas leakage can be rapidly extracted from the area when the dangerous event of gas leakage occurs in the laneway, it is avoided that a large amount of gas is gathered in the area, and in the process of negative pressure ventilation of the device, the gas leakage can be effectively prevented. Workers can install different groups of ventilation pipes according to requirements, and the ventilation requirements of people for different lengths are met.

Description

Technical Field

[0001] The present invention relates to the technical field of mine ventilation, in particular to a mine ventilation device for safe production in mines. Background Art

[0002] A mine is a general term for the shafts, chambers, equipment, ground buildings and structures that form an underground coal mine production system. Sometimes, the inclined shafts, vertical shafts, and horizontal shafts in the underground development of mines are also called mines.

[0003] At present, in the process of production operations in mines, in order to ensure ventilation inside the mines, people usually dig ventilation shafts and exhaust shafts vertically at a position perpendicular to the mine tunnels. The function of the ventilation shaft is to transport fresh air to the underground and dilute toxic and harmful gases, and the function of the exhaust shaft is to discharge toxic and harmful gases. The ventilation shaft and the exhaust shaft jointly adjust the required air volume, temperature and humidity underground, thereby improving working conditions and ensuring safe production.

[0004] However, in the prior art, the positions of ventilation shafts and exhaust shafts are relatively fixed. Although air circulation can be formed in the mine tunnels, the air circulation rate is constant and it is impossible to quickly ventilate a local area in the tunnel. When gas, coal ash, etc. accumulate in the mine tunnels due to excavation, the air in the area cannot be quickly diluted or discharged, and it is impossible to buy more time for personnel to evacuate.

[0005] After searching, the Chinese invention patent with announcement number CN118187991B discloses a mine ventilation equipment, including a mounting base, a supporting inclined plate fixedly mounted on the upper end of the mounting base, a rectangular shell fixedly mounted on the upper end of the supporting inclined plate, a tunnel purification mechanism is arranged inside the rectangular shell, a safety monitoring mechanism is movably installed outside the rectangular shell, a rapid ventilation mechanism is arranged on the side and inside of the rectangular shell, an anti-blocking and dust vibration mechanism is arranged inside the tunnel purification mechanism, and the tunnel purification mechanism includes air inlet channels symmetrically opened on the front and rear sides of the rectangular shell.

[0006] Comprehensively analyzing the prior art, it is found that the above patents still have the following deficiencies: when ventilating the mine tunnel, due to the use of positive pressure ventilation, the gas, coal ash, etc. generated in the tunnel cannot be quickly extracted, and only the dilution of the air in the tunnel can be achieved, and the gas and coal ash cannot be effectively discharged from the area, so that there will still be a large amount of gas, coal ash, etc. in the area, and miners are still prone to suffocation or mine explosion accidents, and the safety is relatively low. At the same time, the ventilation wind of the ventilation equipment mainly comes from the ventilation shaft of the mining area, but if the ventilation shaft of the mining area is far away from the tunnel, it is easy to cause the layout length of the air intake vertical pipe to increase greatly, so that the amount of air drawn into the ventilation equipment and the flow rate are relatively low, which is easy to cause insufficient ventilation of local ventilation in the tunnel. Therefore, there is an urgent need for a mine ventilation equipment for mine safety production to solve the above problems. Summary of the invention

[0007] In view of the problems in the related technology, the present invention proposes a mine ventilation device for safe production in mines to overcome the above-mentioned technical problems existing in the existing related technology.

[0008] The technical solution of the present invention is achieved in this way: A mine ventilation device for safe production in mines, comprising a box body, a fixing frame is fixedly connected to the bottom outer wall of the box body, a fixing cylinder is arranged on one side of the box body, a second motor is fixedly connected to the inside of the fixing cylinder, an output end of the second motor is fixedly connected to a shaft sleeve, a circumferential outer wall of the shaft sleeve is fixedly connected to fan blades distributed in a circular shape at equal distances, a connecting pipe is fixedly connected to the inside of the box body, one end of the connecting pipe is fixedly connected to the fixing cylinder by bolts, the connecting pipe is communicated with the fixing cylinder, a spherical shell is fixedly connected to the inside of the connecting pipe, a sealing shell is arranged inside the spherical shell, the circumferential outer wall of the sealing shell is in contact with the circumferential inner wall of the spherical shell, ventilation grooves are provided on the circumferential outer walls of the spherical shell and the sealing shell, a dust screen is fixedly connected to one end of the fixing cylinder away from the connecting pipe, and a control panel is fixedly connected to the outer wall of one side of the box body; A purification component is arranged inside the box; A ventilation pipe is fixedly connected to the outer wall of one side of the box body, and the ventilation pipe is fixedly connected to another ventilation pipe by bolts, and one end of a group of ventilation pipes is fixedly connected to an air suction hopper, and a gas sensor is arranged inside the air suction hopper, and the circumferential outer wall of the air suction hopper is provided with air suction grooves distributed in a circular shape at equal distances, and the cross section of the air suction groove is wavy, and an arc cover is fixedly connected to the inner wall of one end of the air suction hopper, and the circumferential outer wall of the arc cover is provided with air suction holes; A dust reduction component is provided at the bottom of the ventilation pipe; A direction-changing component for changing the wind direction inside the ventilation duct is arranged on one side of the ventilation duct.

[0009] Furthermore, the dust reduction assembly includes a dust reduction pipe fixedly connected to the outer wall of the bottom of the ventilation pipe, the top of the dust reduction pipe is provided with a diversion groove, the inside of the dust reduction pipe is provided with a center pipe, the circumferential inner wall of the dust reduction pipe is fixedly connected with spiral blades, the top outer wall of the center pipe is fixedly connected with a diversion hood, the circumferential outer wall of the diversion hood is fixedly connected with a reinforcing rod, the end of the reinforcing rod away from the diversion hood is fixedly connected to the circumferential outer wall of the dust reduction pipe, a vertical pipe is provided at the bottom of the dust reduction pipe, one end of the vertical pipe is fixedly connected to a dust collecting pipe, a discharge pipe is inserted at the bottom of the dust collecting pipe, a return pipe is inserted at the circumferential outer wall of the dust reduction pipe, the end of the return pipe away from the dust reduction pipe is connected to the ventilation pipe, the circumferential outer wall of the discharge pipe is fixedly connected with a valve, the circumferential outer wall of the dust collecting pipe is fixedly connected with a support frame, and rollers are provided at the bottom of the support frame and the fixed frame.

[0010] Furthermore, a sealing groove is provided on the top outer wall of the diversion groove, a cover plate is rotatably connected to the inside of the sealing groove, the sealing groove is adapted to the cover plate, and an angle between the cover plate and the sealing groove in the ventilation duct gradually decreases in the direction approaching the air suction hopper.

[0011] Furthermore, the direction-changing assembly includes an L-shaped plate fixedly connected to the circumferential inner wall of the ventilation pipe, the bottom of the L-shaped plate is rotatably connected to a second threaded screw, the circumferential outer wall of the second threaded screw is meshed with a second threaded sleeve, one side outer wall of the second threaded sleeve is fixedly connected to a bent column, the end of the bent column away from the second threaded sleeve is fixedly connected to a spring, the other end of the spring is fixedly connected to a connecting seat, one side outer wall of the cover plate is fixedly connected to a rotating seat, the connecting seat is rotatably connected to the rotating seat, the top of the second threaded screw is fixedly connected to a third rotating column, and the end of the third rotating column away from the second threaded screw is fixedly connected to a rotating block.

[0012] Furthermore, a limiting groove is provided on one side outer wall of the L-shaped plate, and a limiting rod is fixedly connected to one side outer wall of the second threaded sleeve, one end of the limiting rod passes through the inside of the limiting groove, and one end of the limiting rod is fixedly connected to a slider, and one side outer wall of the slider is in contact with one side outer wall of the L-shaped plate.

[0013] Furthermore, the circumferential outer wall of the ventilation pipe is fixedly connected to a stabilizing plate, one side of the stabilizing plate is rotatably connected to a first rotating column, the circumferential outer wall of the first rotating column is fixedly connected to a first gear plate, the circumferential outer wall of the third rotating column is fixedly connected to a second gear plate, the first gear plate is meshed with the second gear plate, the top outer wall of the first rotating column is fixedly connected to a second bevel gear, the second bevel gear is meshed with the first bevel gear, the circumferential inner wall of the first bevel gear is fixedly connected to a rotating rod, the circumferential outer wall of the ventilation pipe is fixedly connected to a connecting plate, and both ends of the rotating rod are rotatably connected to the connecting plate.

[0014] Furthermore, one end of one rotating rod is mutually clamped with one end of another rotating rod, a fixing screw is provided at one end of the rotating rod, and the rotating rod is fixedly connected to the other rotating rod through the fixing screw.

[0015] Furthermore, the purification component includes a partition fixedly connected to the inside of the box, and a first air duct and a second air duct are respectively arranged on the top of the partition, the first air duct and the second air duct are both connected to the connecting pipe, and an activated carbon plate, a molecular sieve plate and a filter are fixedly connected to the outer wall of one side of the partition.

[0016] Furthermore, a first motor is fixedly connected to an outer wall of one side of the box body, a rotating rod is fixedly connected to an output end of the first motor, one end of the rotating rod is fixedly connected to a group of the rotating rods, a circumferential outer wall of the rotating rod is fixedly connected to a worm, the worm is meshed with a worm wheel, a second rotating column is fixedly connected to a circumferential inner wall of the worm wheel, the second rotating column is fixedly connected to the sealing shell, one end of the second rotating column extending below the partition is fixedly connected to a fixed sleeve, the circumferential outer wall of the fixed sleeve is fixedly connected to a cross bar, one end of the cross bar is fixedly connected to a sealing plate, and the top outer wall of the sealing plate is in contact with the bottom outer wall of the first air duct.

[0017] Furthermore, one end of the second rotating column is fixedly connected to a fourth gear plate, the fourth gear plate is meshed with the third gear plate, the bottom outer wall of the third gear plate is fixedly connected to a first threaded screw, the circumferential outer wall of the first threaded screw is meshed with a first threaded sleeve, one side outer wall of the first threaded sleeve is fixedly connected to an inclined plate, one end of the inclined plate is fixedly connected to a rotating frame, both side inner walls of the rotating frame are rotatably connected to brush rollers, the circumferential outer wall of the brush roller is in contact with one side outer wall of the filter screen, the bottom inner wall of the box body is fixedly connected to a first guide rod, the circumferential outer wall of the first guide rod is sleeved with a guide cylinder, and the guide cylinder is fixedly connected to the first threaded sleeve.

[0018] Beneficial effects of the present invention: The invention provides a mine ventilation device for safe production in mines, wherein a dust reduction component is arranged, and a second motor can drive the fan blades to rotate so as to generate negative pressure suction in the connecting pipe and the ventilation pipe, and negative pressure ventilation in the mine tunnel is realized through the negative pressure suction, and when a dangerous event of gas leakage occurs in the tunnel, the gas can be quickly drawn out of the area to avoid a large amount of gas accumulation in the area. During the negative pressure ventilation of the equipment, the staff can install different groups of ventilation pipes as needed to meet people's ventilation needs of different lengths. At the same time, when the airflow is drawn into the interior of the ventilation pipe, a part of the airflow will be blocked by the cover plate and enter the interior of the dust reduction pipe. When the airflow enters the interior of the dust reduction pipe, it will spiral down along the path of the spiral blades. When the airflow spirally descends, a The centrifugal force is certain, so that the coal ash impurities in the air flow can collide with the inner wall of the dust reduction pipe and fall into the dust collecting pipe for collection, and the clean air flow after centrifugal separation flows back to the ventilation pipe through the return pipe. The whole process can realize the collection of impurities such as coal ash during ventilation, ensuring that the air flow after ventilation is cleaner, and can also collect the coal ash in the air, avoiding waste of resources. At the same time, the closer to the suction scoop, the higher the coal ash content in the air flow. Therefore, by adjusting the angle between the inner cover plate of the ventilation duct and the sealing groove, the opening angle of the inner cover plate of the ventilation duct is gradually reduced in the direction close to the suction scoop, so that each group of ventilation ducts can collect and process the coal ash impurities in the air flow more evenly, avoiding the situation that the bottom of the ventilation duct near the suction scoop is quickly filled with coal ash impurities.

[0019] The present invention provides a mine ventilation device for safe production in mines. Through the purification component, when the device is in the process of ventilation, when the gas sensor in the air suction bucket detects that the gas concentration exceeds the standard, the first motor is immediately started. At this time, the first motor drives the rotating rod to rotate. During the rotation of the rotating rod, the worm on its outer wall can be driven to rotate together. Through the mutual engagement between the worm and the worm wheel, the second rotating column can be driven to rotate. During the rotation of the second rotating column, the sealing shell located in the spherical shell can be rotated. Until the sealing shell rotates 90 degrees, the first motor stops working. At this time, the ventilation grooves opened on the outer wall of the sealing shell and the ventilation grooves opened on the outer wall of the spherical shell are misaligned, thereby This makes it impossible for the air flow to pass through the inside of the spherical shell. At the same time, the rotation of the second rotating column can drive the fixed sleeve and the fourth gear at its bottom to rotate together. When the fixed sleeve rotates 90 degrees, the sealing plate arranged under the first air duct will be fully opened. At this time, the air flow sucked in the ventilation duct will enter the interior of the box through the first air duct and contact with the filter, molecular sieve plate and activated carbon plate in turn. The coal ash impurities in the air flow can be preliminarily filtered through the filter, so that the high-concentration gas can fully contact with the molecular sieve plate and activated carbon plate. The adsorption effect of the molecular sieve plate and the activated carbon plate can effectively reduce the gas concentration, thereby buying time for the evacuation of the staff in the tunnel.

[0020] The invention provides a mine ventilation device for safe production in mines. Through the setting of the direction-changing component, the rotating rod at one end of the rotating rod can be driven to rotate together during the rotation of the rotating rod. The rotation of the rotating rod can make the first bevel gear drive the second bevel gear to rotate together. During the rotation of the second bevel gear, the first rotating column and the first gear plate can be driven to rotate. When the first gear plate rotates, the second gear plate meshed with it can be driven to rotate together. The rotation of the second gear plate can drive the third rotating column and the second threaded screw to rotate. When the second threaded screw rotates, the threaded sleeve threadedly connected to the outer wall thereof can drive the bending column and the spring to rotate. The body descends, and when the bent column descends, the opening angle of the cover can be effectively adjusted. When the threaded sleeve descends to a certain height, the cover is completely sealed. At this time, if the threaded sleeve continues to descend, the spring will deform, thereby compensating for the descending height of the threaded sleeve, ensuring that the covers at different opening angles in each group of ventilation pipes can remain sealed. When the cover is closed, the airflow will not be diverted into the dust suppression pipe, so that the airflow is transported in a straight line in the ventilation pipe, and will not be affected by the resistance generated by the dust suppression pipe, etc., thereby improving the ventilation rate and efficiency of the airflow, and being able to discharge high-concentration gas from the area more quickly, effectively ensuring safe operations inside the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall front structure of the present invention.

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0024] Figure 3 It is a schematic diagram of the fixed cylinder structure of the present invention.

[0025] Figure 4 It is a schematic cross-sectional structure diagram of the box body and the fixing tube of the present invention.

[0026] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0027] Figure 6 It is a schematic diagram of the structure of the box body and the fixing tube in the present invention when they are cut open and viewed from bottom.

[0028] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at point C in the middle.

[0029] Figure 8 It is a schematic diagram of the overall half-section plan structure of the present invention.

[0030] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure at D in the middle.

[0031] In the figure: 1. Box; 2. Control panel; 3. Fixed frame; 4. Fixed cylinder; 5. Ventilation pipe; 6. Rotating rod; 7. Air suction bucket; 8. Air suction slot; 9. Air suction hole; 10. Arc cover; 11. Dust suppression pipe; 12. Support frame; 13. Return pipe; 14. Dust collecting pipe; 15. Discharge pipe; 16. Valve; 17. First bevel gear; 18. Second bevel gear; 19. First rotating column; 20. Stabilizing plate; 21. First gear plate; 22. Rotating block; 23. Second gear plate; 24. Connecting plate; 25. Fixed screw; 26. Dustproof net; 27. First motor; 28. Second motor; 29. ​​Fan blade; 30. Worm; 31. Worm wheel; 32. Second rotating column; 33. Connecting pipe; 34. Spherical shell; 35. Sealing shell; 36. Ventilation slot; 37, first air duct; 38, second air duct; 39, partition; 40, activated carbon plate; 41, molecular sieve plate; 42, filter screen; 43, brush roller; 44, first threaded screw; 45, first threaded sleeve; 46, rotating frame; 47, first guide rod; 48, guide cylinder; 49, sealing plate; 50, fixed sleeve; 51, third gear plate; 52, fourth gear plate; 53, spiral blade; 54, center tube; 55, third rotating column; 56, second threaded screw; 57, L-shaped plate; 58, limit groove; 59, slider; 60, second threaded sleeve; 61, bent column; 62, spring; 63, connecting seat; 64, rotating seat; 65, cover plate; 66, sealing slot; 67, diversion slot; 68, diversion hood. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying 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 belong to the scope of protection of the present invention.

[0033] See also Figure 1-Figure 9, a mine ventilation device for safe production in mines, comprising a box body 1, a fixing frame 3 is fixedly connected to the bottom outer wall of the box body 1, a fixing cylinder 4 is arranged on one side of the box body 1, a second motor 28 is fixedly connected to the inside of the fixing cylinder 4, an output end of the second motor 28 is fixedly connected to a shaft sleeve, a circumferential outer wall of the shaft sleeve is fixedly connected to fan blades 29 distributed in a circular shape at equal distances, a connecting pipe 33 is fixedly connected to the inside of the box body 1, one end of the connecting pipe 33 is fixedly connected to the fixing cylinder 4 by bolts, the connecting pipe 33 is communicated with the fixing cylinder 4, a spherical shell 34 is fixedly connected to the inside of the connecting pipe 33, a sealing shell 35 is arranged inside the spherical shell 34, the circumferential outer wall of the sealing shell 35 is in contact with the circumferential inner wall of the spherical shell 34, ventilation grooves 36 are opened on the circumferential outer walls of the spherical shell 34 and the sealing shell 35, a dustproof net 26 is fixedly connected to one end of the fixing cylinder 4 away from the connecting pipe 33, and a control panel 2 is fixedly connected to the outer wall of one side of the box body 1; A purification component is arranged inside the box 1; A ventilation pipe 5 is fixedly connected to the outer wall of one side of the box body 1, and the ventilation pipe 5 is fixedly connected to another ventilation pipe 5 by bolts. One end of a group of ventilation pipes 5 is fixedly connected to an air suction bucket 7, and a gas sensor is arranged inside the air suction bucket 7. The circumferential outer wall of the air suction bucket 7 is provided with air suction grooves 8 distributed in a circular shape at equal distances, and the cross section of the air suction grooves 8 is wavy. An arc cover 10 is fixedly connected to the inner wall of one end of the air suction bucket 7, and an air suction hole 9 is arranged on the circumferential outer wall of the arc cover 10. The staff first moves the equipment to the area to be ventilated in the tunnel and starts the second motor 28. The second motor 28 can drive the fan blade 29 to rotate so as to generate negative pressure suction in the connecting pipe 33 and the ventilation pipe 5. Negative pressure ventilation in the mine tunnel is realized by the negative pressure suction. When a dangerous event of gas leakage occurs in the tunnel, it can be quickly extracted from the area to avoid a large amount of gas accumulation in the area. A dust suppression component is provided at the bottom of the ventilation pipe 5; A direction-changing component for changing the wind direction inside the ventilation duct 5 is provided on one side of the ventilation duct 5 .

[0034] Preferably, the dust reduction assembly includes a dust reduction pipe 11 fixedly connected to the outer wall of the bottom of the ventilation pipe 5, a diversion groove 67 is arranged on the top of the dust reduction pipe 11, a central pipe 54 is arranged inside the dust reduction pipe 11, a spiral blade 53 is fixedly connected to the circumferential inner wall of the dust reduction pipe 11, a diversion cover 68 is fixedly connected to the top outer wall of the central pipe 54, a reinforcing rod is fixedly connected to the circumferential outer wall of the diversion cover 68, and one end of the reinforcing rod away from the diversion cover 68 is fixedly connected to the dust reduction pipe 1 1, a vertical pipe is arranged at the bottom of the dust collecting pipe 11, one end of the vertical pipe is fixedly connected to a dust collecting pipe 14, a discharge pipe 15 is plugged at the bottom of the dust collecting pipe 14, a return pipe 13 is plugged into the circumferential outer wall of the dust collecting pipe 11, and one end of the return pipe 13 away from the dust collecting pipe 11 is connected to the ventilation pipe 5, a valve 16 is fixedly connected to the circumferential outer wall of the discharge pipe 15, a support frame 12 is fixedly connected to the circumferential outer wall of the dust collecting pipe 14, and the support frame 12 is connected to the fixed frame 3 The bottom of each of the devices is provided with a roller. During the negative pressure ventilation of the device, the staff can install different numbers of ventilation pipes 5 as needed to meet people's ventilation needs of different lengths. At the same time, when the airflow is drawn into the ventilation pipe 5, a part of the airflow is blocked by the cover plate 65 and enters the dust reduction pipe 11. When the airflow enters the dust reduction pipe 11, it will spiral down along the path of the spiral blades 53. When the airflow spirally descends, a certain centrifugal force will be generated, so that the coal ash impurities in the airflow can collide with the inner wall of the dust reduction pipe 11 and fall into the dust collecting pipe 14 for collection. The clean airflow after centrifugal separation will flow back to the ventilation pipe 5 again through the return pipe 13. The whole process can realize the collection of impurities such as coal ash during ventilation, ensure that the airflow after ventilation is cleaner, and can also collect coal ash in the air, avoiding waste of resources.

[0035] Preferably, a sealing groove 66 is provided on the top outer wall of the diversion groove 67, and a cover plate 65 is rotatably connected inside the sealing groove 66, and the sealing groove 66 is matched with the cover plate 65. The angle between the cover plate 65 and the sealing groove 66 in the ventilation pipe 5 gradually decreases in the direction close to the suction scoop 7. Since the coal ash content in the airflow is higher closer to the suction scoop 7, the angle between the cover plate 65 and the sealing groove 66 in the ventilation pipe 5 is adjusted so that the opening angle of the cover plate 65 in the ventilation pipe 5 is gradually reduced in the direction close to the suction scoop 7, so that each group of ventilation pipes 5 can collect and process the coal ash impurities in the airflow more evenly, thereby avoiding the situation where the bottom of the ventilation pipe 5 near the suction scoop 7 is quickly filled with coal ash impurities.

[0036] Preferably, the direction-changing assembly includes an L-shaped plate 57 fixedly connected to the circumferential inner wall of the ventilation pipe 5, the bottom of the L-shaped plate 57 is rotatably connected to the second threaded screw 56, the circumferential outer wall of the second threaded screw 56 is meshed with a second threaded sleeve 60, a bent column 61 is fixedly connected to the outer wall of one side of the second threaded sleeve 60, the end of the bent column 61 away from the second threaded sleeve 60 is fixedly connected to a spring 62, the other end of the spring 62 is fixedly connected to a connecting seat 63, the outer wall of one side of the cover plate 65 is fixedly connected to a rotating seat 64, the connecting seat 63 is rotatably connected to the rotating seat 64, the top of the second threaded screw 56 is fixedly connected to the third rotating column 55, the end of the third rotating column 55 away from the second threaded screw 56 is fixedly connected to the rotating block 22, and one side of the L-shaped plate 57 A limiting groove 58 is provided on the outer wall, and a limiting rod is fixedly connected to an outer wall of one side of the second threaded sleeve 60, one end of the limiting rod passes through the inner part of the limiting groove 58, and a slider 59 is fixedly connected to one end of the limiting rod, and an outer wall of one side of the slider 59 contacts an outer wall of one side of the L-shaped plate 57, and a stabilizing plate 20 is fixedly connected to the circumferential outer wall of the ventilation pipe 5, and a first rotating column 19 is rotatably connected to one side of the stabilizing plate 20, and a first gear plate 21 is fixedly connected to the circumferential outer wall of the first rotating column 19, and a second gear plate 23 is fixedly connected to the circumferential outer wall of the third rotating column 55, and the first gear plate 21 is meshed with the second gear plate 23, and a second bevel gear 18 is fixedly connected to the top outer wall of the first rotating column 19, and the second bevel gear 18 is meshed with the first bevel gear 17, and the first The circumferential inner wall of the bevel gear 17 is fixedly connected with a rotating rod 6, and the circumferential outer wall of the ventilation pipe 5 is fixedly connected with a connecting plate 24. Both ends of the rotating rod 6 are rotatably connected to the connecting plate 24. During the rotation of the rotating rod, the rotating rod 6 at one end thereof can be driven to rotate together. The rotation of the rotating rod 6 can make the first bevel gear 17 drive the second bevel gear 18 to rotate together. During the rotation of the second bevel gear 18, the first rotating column 19 and the first gear plate 21 can be driven to rotate. When the first gear plate 21 rotates, the second gear plate 23 meshed therewith can be driven to rotate together. The rotation of the second gear plate 23 can drive the third rotating column 55 and the second threaded screw 56 to rotate. When the second threaded screw 56 rotates, the threaded connection on the outer surface thereof can be driven The threaded sleeve on the wall drives the bent column 61 and the spring 62 to descend as a whole. When the bent column 61 descends, the opening angle of the cover 65 can be effectively adjusted. When the threaded sleeve descends to a certain height, the cover 65 is completely sealed. At this time, if the threaded sleeve continues to descend, the spring 62 will deform to compensate for the descending height of the threaded sleeve, ensuring that the cover 65 at different opening angles in each group of ventilation pipes 5 can remain sealed. When the cover 65 is closed, the airflow will not be diverted into the dust reduction pipe 11, so that the airflow is transported in a straight line in the ventilation pipe 5, and will not be affected by the resistance generated by the dust reduction pipe 11, etc., thereby improving the airflow ventilation rate and efficiency, and being able to more quickly discharge high-concentration gas from the area, effectively ensuring safe operations inside the mine.

[0037] Preferably, one end of one rotating rod 6 is engaged with one end of another rotating rod 6 , and a fixing screw 25 is provided at one end of the rotating rod 6 , and the rotating rod 6 is fixedly connected with the other rotating rod 6 via the fixing screw 25 .

[0038] Preferably, the purification component includes a partition 39 fixedly connected to the inside of the box body 1, and the top of the partition 39 is respectively provided with a first air duct 37 and a second air duct 38, the first air duct 37 and the second air duct 38 are both connected to the connecting pipe 33, and an outer wall of one side of the partition 39 is fixedly connected to an activated carbon plate 40, a molecular sieve plate 41 and a filter screen 42, and an outer wall of one side of the box body 1 is fixedly connected to a first motor 27, and an output end of the first motor 27 is fixedly connected to a rotating rod, one end of the rotating rod is fixedly connected to a group of rotating rods 6, and a worm 30 is fixedly connected to the circumferential outer wall of the rotating rod, and the worm 30 is meshed with a worm wheel 31, and the worm wheel The circumferential inner wall of 31 is fixedly connected with the second rotating column 32, the second rotating column 32 is fixedly connected with the sealing shell 35, the end of the second rotating column 32 extending below the partition 39 is fixedly connected with the fixed sleeve 50, the circumferential outer wall of the fixed sleeve 50 is fixedly connected with a cross bar, one end of the cross bar is fixedly connected with a sealing plate 49, the top outer wall of the sealing plate 49 is in contact with the bottom outer wall of the first air guide 37, when the equipment is in the process of ventilation, the gas sensor in the air suction hopper 7 detects that the gas concentration exceeds the standard, and the first motor 27 is immediately started, at this time, the first motor 27 will drive the rotating rod to rotate, and during the rotation of the rotating rod, it can The worm 30 on its outer wall is driven to rotate together, and the mutual meshing between the worm 30 and the worm wheel 31 can drive the second rotating column 32 to rotate. During the rotation of the second rotating column 32, the sealing shell 35 located in the spherical shell 34 can be rotated until the sealing shell 35 rotates 90 degrees, and the first motor 27 stops working. At this time, the ventilation groove 36 opened on the outer wall of the sealing shell 35 and the ventilation groove 36 opened on the outer wall of the spherical shell 34 are misaligned, so that the airflow cannot pass through the inside of the spherical shell 34. At the same time, during the rotation of the second rotating column 32, the fixed sleeve 50 and the fourth gear at the bottom thereof can be driven When the fixed sleeve 50 rotates 90 degrees, the sealing plate 49 arranged under the first air duct 37 will be fully opened. At this time, the airflow sucked in the ventilation pipe 5 will enter the interior of the box body 1 through the first air duct 37 and contact with the filter screen 42, the molecular sieve plate 41 and the activated carbon plate 40 in turn. The filter screen 42 can be used to preliminarily filter the coal ash impurities in the airflow, so that the high-concentration gas can fully contact with the molecular sieve plate 41 and the activated carbon plate 40. Through the adsorption effect of the molecular sieve plate 41 and the activated carbon plate 40, the gas concentration can be effectively reduced, which buys time for the evacuation of the workers in the tunnel.

[0039] Preferably, one end of the second rotating column 32 is fixedly connected to a fourth gear plate 52, the fourth gear plate 52 is meshed with the third gear plate 51, the bottom outer wall of the third gear plate 51 is fixedly connected to the first threaded screw 44, the circumferential outer wall of the first threaded screw 44 is meshed with the first threaded sleeve 45, one side outer wall of the first threaded sleeve 45 is fixedly connected to an inclined plate, one end of the inclined plate is fixedly connected to a rotating frame 46, both sides of the inner wall of the rotating frame 46 are rotatably connected to the brush roller 43, the circumferential outer wall of the brush roller 43 is in contact with the outer wall of one side of the filter screen 42, the bottom inner wall of the box body 1 is fixedly connected to the first guide rod 47, the first guide rod 47 is fixedly connected to the outer wall of the first guide rod 47 A guide cylinder 48 is sleeved on the circumferential outer wall, and the guide cylinder 48 is fixedly connected to the first threaded sleeve 45. During the rotation of the second rotating column 32, the fourth gear plate 52 can be driven, and the first threaded screw 44 can be driven to rotate through the mutual engagement between the fourth gear plate 52 and the third gear plate 51. When the first threaded screw 44 rotates, the first threaded sleeve 45 threadedly connected to its outer wall can drive the brush roller 43 on one side thereof to make vertical movement, so that the filter screen 42 can be cleaned and dusted through the brush roller 43, thereby avoiding the situation that the surface of the filter screen 42 is blocked by a large amount of coal ash impurities, which affects the airflow ventilation efficiency.

[0040] In summary, with the aid of the above technical solution of the present invention, when in use, the staff first moves the equipment to the area to be ventilated in the tunnel and starts the second motor 28. The second motor 28 can drive the fan blades 29 to rotate, thereby generating negative pressure suction in the connecting pipe 33 and the ventilation pipe 5. Negative pressure ventilation in the mine tunnel is achieved through the negative pressure suction. When a dangerous gas leakage occurs in the tunnel, it can be quickly drawn out of the area to avoid a large amount of gas accumulation in the area. During the negative pressure ventilation of the equipment, the staff can install different numbers of ventilation pipes 5 as needed to meet people's ventilation needs for different lengths. At the same time, when the airflow is drawn into the ventilation pipe 5, part of the airflow will be blocked by the cover plate 65. When the airflow enters the dust reduction pipe 11, it will descend in a spiral shape along the path of the spiral blades 53. When the airflow descends in a spiral shape, it will generate a certain centrifugal force, so that the coal ash impurities in the airflow can collide with the inner wall of the dust reduction pipe 11 and fall into the dust collecting pipe 14 for collection. The clean airflow after centrifugal separation will flow back to the ventilation pipe 5 again through the return pipe 13. The whole process can realize the collection of impurities such as coal ash during ventilation, ensure that the airflow after ventilation is cleaner, and can also collect coal ash in the air, avoiding waste of resources. At the same time, the closer to the suction hopper 7, the higher the coal ash content in the airflow. Therefore, by adjusting the angle between the cover plate 65 and the sealing groove 66 in the ventilation pipe 5, The opening angle of the cover plate 65 in the ventilation pipe 5 gradually decreases in the direction close to the air suction hopper 7, so that each group of ventilation pipes 5 can collect and process the coal ash impurities and the like in the airflow more evenly, and avoid the situation that the bottom of the ventilation pipe 5 near the air suction hopper 7 is quickly filled with coal ash impurities. When the equipment is in the process of ventilation, the gas sensor in the air suction hopper 7 detects that the gas concentration exceeds the standard and the first motor 27 is immediately started. At this time, the first motor 27 will drive the rotating rod to rotate, and in the process of the rotating rod rotating, it can drive the worm 30 on its outer wall to rotate together, and through the mutual meshing between the worm 30 and the worm wheel 31, it can drive the second rotating column 32 to rotate, and in the process of the second rotating column 32 rotating, the sealing shell 35 located in the spherical shell 34 can be driven to rotate. The first motor 27 stops working when the sealing shell 35 rotates 90 degrees. At this time, the ventilation slots 36 opened on the outer wall of the sealing shell 35 and the ventilation slots 36 opened on the outer wall of the spherical shell 34 are misaligned, so that the airflow cannot pass through the inside of the spherical shell 34. At the same time, during the rotation of the second rotating column 32, the fixed sleeve 50 and the fourth gear at the bottom thereof can be driven to rotate together. When the fixed sleeve 50 rotates 90 degrees, the sealing plate 49 arranged under the first air duct 37 will be fully opened. At this time, the airflow sucked in the ventilation pipe 5 will enter the interior of the box body 1 through the first air duct 37 and contact with the filter screen 42, the molecular sieve plate 41 and the activated carbon plate 40 in turn. The coal ash impurities in the airflow can be preliminarily filtered through the filter screen 42.The high-concentration gas is fully in contact with the molecular sieve plate 41 and the activated carbon plate 40. The adsorption effect of the molecular sieve plate 41 and the activated carbon plate 40 can effectively reduce the gas concentration, thereby buying time for the evacuation of the workers in the tunnel. In the process of the rotating rod rotating, the rotating rod 6 at one end thereof can be driven to rotate together. The rotation of the rotating rod 6 can make the first bevel gear 17 drive the second bevel gear 18 to rotate together. In the process of the second bevel gear 18 rotating, the first rotating column 19 and the first gear plate 21 can be driven to rotate. When the first gear plate 21 rotates, the second gear plate 23 meshed therewith can be driven to rotate together. The rotation of the second gear plate 23 can drive the third rotating column 55 and the second threaded screw 56 to rotate. When the second threaded screw 56 rotates, the threaded sleeve threadedly connected to the outer wall thereof can be driven to rotate. The cylinder drives the bent column 61 and the spring 62 to descend as a whole. When the bent column 61 descends, the opening angle of the cover plate 65 can be effectively adjusted. When the threaded sleeve descends to a certain height, the cover plate 65 is completely sealed. At this time, if the threaded sleeve continues to descend, the spring 62 will deform, thereby compensating for the descending height of the threaded sleeve, ensuring that the cover plates 65 at different opening angles in each group of ventilation pipes 5 can remain sealed. It should be noted that during normal ventilation, the wind force will not cause the spring 62 to bend and deform. When the cover plate 65 is closed, the airflow will not be diverted into the dust removal pipe 11, so that the airflow is transported in a straight line in the ventilation pipe 5, and will not be affected by the resistance generated by the dust removal pipe 11, etc., thereby improving the airflow ventilation rate and efficiency, and being able to more quickly discharge high-concentration gas from the area, effectively ensuring safe operations inside the mine.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mine ventilation device for safe production in a mine, comprising a housing (1), characterized in that: The bottom outer wall of the box body (1) is fixedly connected to a fixing frame (3); a fixing cylinder (4) is provided on one side of the box body (1); a second motor (28) is fixedly connected to the interior of the fixing cylinder (4); an output end of the second motor (28) is fixedly connected to a shaft sleeve; the circumferential outer wall of the shaft sleeve is fixedly connected to fan blades (29) that are equidistantly distributed in a circular shape; a connecting pipe (33) is fixedly connected to the interior of the box body (1); one end of the connecting pipe (33) is fixedly connected to the fixing cylinder (4) by bolts; the connecting pipe (33) is fixedly connected to the fixing cylinder (4) by bolts. The connecting tube (33) is connected to a spherical shell (34), the interior of the connecting tube (33) is fixedly connected to a spherical shell (34), a sealing shell (35) is arranged inside the spherical shell (34), the circumferential outer wall of the sealing shell (35) is in contact with the circumferential inner wall of the spherical shell (34), the circumferential outer walls of the spherical shell (34) and the sealing shell (35) are both provided with ventilation grooves (36), one end of the fixed tube (4) away from the connecting tube (33) is fixedly connected to a dustproof net (26), and one side outer wall of the box body (1) is fixedly connected to a control panel (2); A purification component is arranged inside the box (1); A ventilation pipe (5) is fixedly connected to an outer wall of one side of the box body (1), and the ventilation pipe (5) is fixedly connected to another ventilation pipe (5) by bolts. One end of a group of ventilation pipes (5) is fixedly connected to an air suction hopper (7), and a gas sensor is arranged inside the air suction hopper (7). The circumferential outer wall of the air suction hopper (7) is provided with air suction grooves (8) distributed in a circular shape at equal distances, and the cross section of the air suction grooves (8) is wavy. An arc cover (10) is fixedly connected to the inner wall of one end of the air suction hopper (7), and the circumferential outer wall of the arc cover (10) is provided with air suction holes (9); A dust reduction component is provided at the bottom of the ventilation pipe (5); A direction-changing component for changing the wind direction inside the ventilation pipe (5) is provided on one side of the ventilation pipe (5).

2. A mine ventilation device for safe production in a mine according to claim 1, characterized in that: The dust reduction assembly comprises a dust reduction pipe (11) fixedly connected to the outer wall of the bottom of the ventilation pipe (5); a diversion groove (67) is arranged on the top of the dust reduction pipe (11); a central pipe (54) is arranged inside the dust reduction pipe (11); spiral blades (53) are fixedly connected to the circumferential inner wall of the dust reduction pipe (11); a diversion hood (68) is fixedly connected to the top outer wall of the central pipe (54); a reinforcing rod is fixedly connected to the circumferential outer wall of the diversion hood (68); an end of the reinforcing rod away from the diversion hood (68) is fixedly connected to the circumferential outer wall of the dust reduction pipe (11); A vertical pipe is provided at the bottom of the dust reduction pipe (11), one end of which is fixedly connected to a dust collecting pipe (14), a discharge pipe (15) is inserted at the bottom of the dust collecting pipe (14), a return pipe (13) is inserted at the circumferential outer wall of the dust reduction pipe (11), one end of the return pipe (13) away from the dust reduction pipe (11) is connected to the ventilation pipe (5), a valve (16) is fixedly connected to the circumferential outer wall of the discharge pipe (15), a support frame (12) is fixedly connected to the circumferential outer wall of the dust collection pipe (14), and rollers are provided at the bottoms of the support frame (12) and the fixed frame (3).

3. A mine ventilation device for safe production in a mine according to claim 2, characterized in that: A sealing groove (66) is provided on the top outer wall of the diversion groove (67), a cover plate (65) is rotatably connected to the inside of the sealing groove (66), the sealing groove (66) is matched with the cover plate (65), and the angle between the cover plate (65) and the sealing groove (66) in the ventilation pipe (5) gradually decreases in a direction approaching the air suction hopper (7).

4. A mine ventilation device for safe production in a mine according to claim 3, characterized in that: The direction-changing assembly comprises an L-shaped plate (57) fixedly connected to the circumferential inner wall of the ventilation pipe (5); a second threaded screw (56) is rotatably connected to the bottom of the L-shaped plate (57); a second threaded sleeve (60) is meshed with the circumferential outer wall of the second threaded screw (56); a bent column (61) is fixedly connected to the outer wall of one side of the second threaded sleeve (60); an end of the bent column (61) away from the second threaded sleeve (60) is fixedly connected to a spring (62); the other end of the spring (62) is fixedly connected to a connecting seat (63); an outer wall of one side of the cover plate (65) is fixedly connected to a rotating seat (64); the connecting seat (63) is rotatably connected to the rotating seat (64); a third rotating column (55) is fixedly connected to the top of the second threaded screw (56); and an end of the third rotating column (55) away from the second threaded screw (56) is fixedly connected to a rotating block (22).

5. A mine ventilation device for safe production in a mine according to claim 4, characterized in that: A limiting groove (58) is provided on one side outer wall of the L-shaped plate (57); a limiting rod is fixedly connected to one side outer wall of the second threaded sleeve (60); one end of the limiting rod passes through the inside of the limiting groove (58); one end of the limiting rod is fixedly connected to a slider (59); one side outer wall of the slider (59) contacts with one side outer wall of the L-shaped plate (57).

6. A mine ventilation device for safe production in a mine according to claim 5, characterized in that: The circumferential outer wall of the ventilation pipe (5) is fixedly connected to a stabilizing plate (20); one side of the stabilizing plate (20) is rotatably connected to a first rotating column (19); the circumferential outer wall of the first rotating column (19) is fixedly connected to a first gear plate (21); the circumferential outer wall of the third rotating column (55) is fixedly connected to a second gear plate (23); the first gear plate (21) is meshed with the second gear plate (23); the top outer wall of the first rotating column (19) is fixedly connected to a second bevel gear (18); the second bevel gear (18) is meshed with a first bevel gear (17); the circumferential inner wall of the first bevel gear (17) is fixedly connected to a rotating rod (6); the circumferential outer wall of the ventilation pipe (5) is fixedly connected to a connecting plate (24); both ends of the rotating rod (6) are rotatably connected to the connecting plate (24).

7. A mine ventilation device for safe production in a mine according to claim 6, characterized in that: One end of one rotating rod (6) is mutually clamped with one end of another rotating rod (6), one end of the rotating rod (6) is provided with a fixing screw (25), and the rotating rod (6) is fixedly connected to the other rotating rod (6) via the fixing screw (25).

8. A mine ventilation device for safe production in a mine according to claim 7, characterized in that: The purification component comprises a partition (39) fixedly connected to the inside of the box (1); a first air duct (37) and a second air duct (38) are respectively arranged on the top of the partition (39); the first air duct (37) and the second air duct (38) are both connected to the connecting pipe (33); and an activated carbon plate (40), a molecular sieve plate (41) and a filter screen (42) are fixedly connected to an outer wall of one side of the partition (39).

9. A mine ventilation device for safe production in a mine according to claim 8, characterized in that: A first motor (27) is fixedly connected to an outer wall of one side of the box body (1); a rotating rod is fixedly connected to an output end of the first motor (27); one end of the rotating rod is fixedly connected to a group of rotating rods (6); a worm (30) is fixedly connected to the circumferential outer wall of the rotating rod; the worm (30) is meshed with a worm wheel (31); a second rotating column (32) is fixedly connected to the circumferential inner wall of the worm wheel (31); the second rotating column (32) is fixedly connected to the sealing shell (35); one end of the second rotating column (32) extending below the partition (39) is fixedly connected to a fixed sleeve (50); a cross bar is fixedly connected to the circumferential outer wall of the fixed sleeve (50); one end of the cross bar is fixedly connected to a sealing plate (49); a top outer wall of the sealing plate (49) contacts a bottom outer wall of the first air guide duct (37).

10. A mine ventilation device for safe production in a mine according to claim 9, characterized in that: One end of the second rotating column (32) is fixedly connected to a fourth gear plate (52), the fourth gear plate (52) is meshed with a third gear plate (51), the bottom outer wall of the third gear plate (51) is fixedly connected to a first threaded screw (44), the circumferential outer wall of the first threaded screw (44) is meshed with a first threaded sleeve (45), one side outer wall of the first threaded sleeve (45) is fixedly connected to an inclined plate, one end of the inclined plate is fixedly connected to a rotating frame (46), both sides of the inner wall of the rotating frame (46) are rotatably connected to brush rollers (43), the circumferential outer wall of the brush roller (43) is in contact with one side outer wall of the filter screen (42), the bottom inner wall of the box body (1) is fixedly connected to a first guide rod (47), the circumferential outer wall of the first guide rod (47) is sleeved with a guide cylinder (48), and the guide cylinder (48) is fixedly connected to the first threaded sleeve (45).

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