A safety detection device for mine ventilation equipment and a method of using the same

Abstract

The present invention discloses a safety detection device for mine ventilation equipment and a method for using the same, and relates to the field of ventilation technology. A safety detection device for mine ventilation equipment comprises a ventilation duct, an interception net is arranged at the air inlet end of the ventilation duct, and also comprises: a material storage shell, which is sleeved on the outside of the ventilation duct and is used to store methane adsorbent particles, a feed port connected to the material storage shell is opened on the ventilation duct, an electric push rod is fixed on the ventilation duct, and a baffle for blocking the feed port is connected to the telescopic end of the electric push rod; the present invention drives the methane adsorbent particles in the installation grid to shake, effectively preventing the methane adsorbent particles in the installation grid from being saturated and affecting the methane adsorption effect of other methane adsorbent particles on the gas, reducing the replacement cycle of the methane adsorbent particles, ensuring the methane adsorption effect, and being able to automatically replace the methane adsorbent particles, reducing the workload and difficulty of the staff.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilation, and in particular to a safety detection device for mine ventilation equipment and a use method thereof. Background Art

[0002] Mine ventilation refers to the input of fresh air into the mine to increase the oxygen concentration in order to dilute and remove toxic and harmful gases and powders in the mine. The basic task of mine ventilation is to supply enough fresh air underground to meet the oxygen needs of personnel, ensure safe production, regulate the underground climate, and create a good working environment.

[0003] In the prior art, detectors and methane adsorbents are generally installed at the ventilation duct to absorb and detect methane passing through the duct. However, the methane adsorbent particles are generally spread flat on the support surface, and the particles are closely attached to each other, so that the adsorption effect of the shielded methane adsorbent is poor. The methane adsorption layer is often replaced before it is saturated, which increases the installation cost; and when replacing the methane adsorbent particles, the machine is generally disassembled manually, which is cumbersome, time-consuming and labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a safety detection device for mining ventilation equipment and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A safety detection device for mining ventilation equipment comprises a ventilation duct, an air inlet end of the ventilation duct is provided with an interception net, and further comprises:

[0007] A material storage shell, which is sleeved on the outside of the ventilation duct and is used to store methane adsorbent particles. The ventilation duct is provided with a feed port connected to the material storage shell. The ventilation duct is fixed with an electric push rod, and the telescopic end of the electric push rod is connected to a baffle for blocking the feed port;

[0008] An installation grid frame, the installation grid frame is arranged in the ventilation duct and is used to place methane adsorbent particles, and a driving component for driving the installation grid frame to move is arranged in the ventilation duct;

[0009] A material receiving shell, wherein the material receiving shell is fixedly arranged outside the ventilation duct, and the ventilation duct is provided with a material discharge port connected with the material receiving shell;

[0010] Wherein, a sensor for detecting methane is fixedly arranged on the inner wall of the ventilation duct.

[0011] Preferably, the installation grid includes a fixed grid fixed in the ventilation duct and a movable grid slidably connected to the discharge port, the movable grid includes a movable frame slidably connected in the ventilation duct and a swing frame rotatably connected to both sides of the movable frame by a pin shaft, the pin shaft is provided with a torsion spring for driving the swing frame to reset and rotate, and the top wall of the swing frame is movably opposed to the inner wall of the material receiving shell.

[0012] Preferably, a rack plate is fixedly provided at the bottom of the baffle, a push frame movably abutting against the top wall of the swing frame is fixedly provided at the bottom of the rack plate, and the push frame is slidably connected to the material receiving shell.

[0013] Preferably, the fixed grid includes a fixed frame fixed in the ventilation duct and a rotating frame rotatably connected to the fixed frame, the rotating frame is placed on the lower side of the feed port, a rotating rod rotatably connected to the rotating frame is provided in the ventilation duct, a coil spring is sleeved on the outer side of the rotating rod, the coil spring is arranged inside the side wall of the ventilation duct, and the rotating rod is also provided with a movable gear meshing with the rack plate.

[0014] Preferably, the driving assembly includes a rotating shaft rotatably connected to the ventilation duct, the rotating shaft is provided with paddles evenly arranged in a circumference, the ventilation duct is provided with an air guide plate on the upper side of the rotating shaft, a plurality of air guide grooves are provided on the air guide plate, and a half gear and a driven gear that mesh with each other are also rotatably connected in the ventilation duct, the half gear is fixedly connected to the rotating shaft, the driven gear is provided with a winding rod, and the winding rod is wound with a first pull rope connected to the movable frame.

[0015] Preferably, the movable frame includes a frame body slidably connected in the ventilation duct and a slider fixed to the frame body, the end of the first pull rope away from the winding rod is connected to the slider, a sliding groove for sliding of the slider is opened in the ventilation duct, and a first elastic element is arranged between the inner wall of the sliding groove and the slider.

[0016] Preferably, a shell is fixedly provided on the outside of the ventilation duct, a partition slidably connected to the ventilation duct is slidably connected inside the shell, a second elastic element is arranged between the partition and the inner wall of the shell, a reel is fixedly provided on the rotating rod, a second pull rope is wound around the reel, and the end of the second pull rope away from the reel passes through the ventilation duct and the shell and is connected to the partition.

[0017] Preferably, a return pipe is fixedly provided on the ventilation duct, and an air inlet and an air outlet matching the return pipe are opened on the ventilation duct, a shell is fixedly provided on the outside of the ventilation duct at the air inlet, a sealing plate for sealing the air inlet is slidably connected inside the shell, a third elastic element is arranged between the sealing plate and the inner wall of the shell, and a recessed hole for connecting the return pipe and the air inlet is opened on the sealing plate.

[0018] Preferably, a force-bearing inclined surface is provided at the bottom of the sealing plate, and an extrusion inclined surface movably opposed to the force-bearing inclined surface is provided on the partition plate.

[0019] The present invention also discloses a method for using a safety detection device for mining ventilation equipment, comprising the following steps:

[0020] S1: The air flows along the ventilation duct under the action of the fan. The interception net at the air inlet end of the ventilation duct intercepts impurities in the air. The filtered and intercepted air passes through the installation grid. The methane adsorbent particles placed in the installation grid can absorb the methane gas contained in the air. Then the air continues to flow along the ventilation duct. The sensor in the ventilation duct detects the methane content in the passing air.

[0021] S2: When the sensor detects that the methane content in the air exceeds the preset value, the background program controls the electric push rod to operate, so that the electric push rod pulls the baffle plate downward, and the baffle plate no longer blocks the feed port, and the methane adsorbent particles stored in the storage shell fall onto the fixed grid through the feed port;

[0022] S3: As the baffle plate continues to move downward, the baffle plate drives the push frame to push the top of the swing frame through the rack plate, so that the side of the swing frame flips relative to the moving frame, so that the methane adsorbent particles placed on the swing frame slide down along the slope into the receiving shell;

[0023] During the downward movement of the rack plate, the rack plate meshes with the movable gear for transmission, and the rotating rod drives the rotating frame to flip, so that the methane adsorbent particles fall onto the flipped rotating frame;

[0024] S4: Then, the electric push rod is controlled to push the baffle plate upward so that the baffle plate blocks the feed port again. When the baffle plate moves upward, the push frame no longer pushes down the swing frame, and the swing frame resets and rotates. At this time, the meshing of the rack plate and the movable gear drives the rotating rod to reset and rotate, and the rotating rod drives the rotating frame to flip, and the opening of the rotating frame faces upward, so that the methane adsorbent particles that fall from the storage shell into the rotating frame fall on the reset swing frame;

[0025] S5: The air flowing in the ventilation duct exerts a thrust on the toggle plate under the action of the air guide plate, so that the toggle plate drives the rotating shaft to rotate, and the half gear on the rotating shaft meshes with the driven gear on the winding rod for transmission, so that the winding rod intermittently reels or releases the first pull rope, and then the first pull rope cooperates with the first elastic element to drive the slider to move back and forth in the slide groove, and the slider drives the movable frame and the swing frame to move back and forth, so that the methane adsorbent particles on the swing frame swing back and forth, so that the methane adsorbent particles are evenly spread on the movable grid and adsorb methane in the air passing through the installed grid.

[0026] Compared with the prior art, the present invention provides a safety detection device for mining ventilation equipment and a method for using the same, which has the following beneficial effects:

[0027] 1. The safety detection device for mining ventilation equipment and its use method drive the methane adsorbent particles in the installation grid to shake, effectively preventing the saturation of some methane adsorbent particles in the installation grid from affecting the adsorption effect of other methane adsorbent particles on methane in the gas, reducing the replacement cycle of methane adsorbent particles, ensuring the methane adsorption effect, and being able to automatically replace methane adsorbent particles, reducing the workload and difficulty of the staff.

[0028] 2. The safety detection device for mining ventilation equipment and the use method thereof, during the replacement of methane adsorbent particles, the drum reels in the second pull rope, and the second pull rope pulls the partition, the partition blocks the air outlet end of the ventilation duct, and the partition pushes on the sealing plate when moving, so that the concave hole of the sealing plate coincides with the air inlet, the air with excessive methane detected by the sensor is blocked and enters the return pipe through the air inlet, and the air after entering the return pipe passes through the installation grid again, and the replaced methane adsorbent particles in the installation grid fully absorb the methane in the air, thereby ensuring ventilation safety and preventing the air with excessive methane from circulating freely.

[0029] 3. The safety detection device for mining ventilation equipment and its use method, during the replacement of methane adsorbent particles, the driving component drives the movable grid to vibrate, thereby evenly spreading the methane adsorbent particles on the movable grid, ensuring that the methane adsorbent particles installed in the grid fully absorb methane in the air and avoiding dead corners for methane absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0031] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0032] Figure 3 For the present invention Figure 2 A partial enlarged structural diagram of the middle part;

[0033] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention;

[0034] Figure 5 For the present invention Figure 4 A schematic diagram of the partially enlarged structure of the middle B part;

[0035] Figure 6 For the present invention Figure 4 A schematic diagram of the partially enlarged structure of the middle C part;

[0036] Figure 7 It is a schematic diagram of the structure of the rotating frame of the present invention with its opening facing downwards;

[0037] Figure 8 It is a schematic diagram of the structure of the swing frame of the present invention when it is flipped;

[0038] Fig. 9 For the present invention Figure 8 The schematic diagram of the partial enlarged structure of the middle D part;

[0039] Fig.10 It is a schematic diagram of the external structure of the rotating shaft of the present invention;

[0040] Fig.11 It is a schematic diagram of the cross-sectional structure of the partition of the present invention.

[0041] In the figure: 1. ventilation duct; 101. interception net; 102. feed port; 103. discharge port; 104. sensor; 2. storage shell; 3. electric push rod; 301. baffle; 4. installation grid; 401. fixed grid; 4011. fixed frame; 4012. rotating frame; 402. movable grid; 4021. movable frame; 4022. swing frame; 5. material collection shell; 6. rack plate; 601. push frame; 7. rotating rod; 701. coil spring; 702. movable gear; 8. rotating shaft; 801. toggle piece; 802. half gear Wheel; 9, air guide plate; 901, air guide groove; 10, driven gear; 11, winding rod; 111, first pull rope; 12, frame; 121, slider; 122, slide groove; 123, first elastic element; 13, shell; 131, partition; 1311, extrusion slope; 132, second elastic element; 14, reel; 141, second pull rope; 15, return pipe; 151, air inlet; 152, air outlet; 16, shell; 161, sealing plate; 1611, concave hole; 1612, force slope; 162, third elastic element. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] Example 1: Reference Figure 1 , Figure 2 , Figure 4 and Figure 8 A safety detection device for mining ventilation equipment includes a ventilation duct 1, an interception net 101 is provided at the air inlet end of the ventilation duct 1, and further includes:

[0045] A material storage shell 2 is sleeved on the outside of the ventilation duct 1 and is used to store methane adsorbent particles. A feed port 102 connected to the material storage shell 2 is provided on the ventilation duct 1. An electric push rod 3 is fixed on the ventilation duct 1. A baffle 301 for blocking the feed port 102 is connected to the telescopic end of the electric push rod 3.

[0046] An installation grid 4 is arranged in the ventilation duct 1 and is used to place methane adsorbent particles. A driving component for driving the installation grid 4 to move is arranged in the ventilation duct 1;

[0047] A material receiving shell 5, which is fixedly arranged outside the ventilation duct 1, and a material outlet 103 connected to the material receiving shell 5 is opened on the ventilation duct 1;

[0048] Wherein, a sensor 104 for detecting methane is fixedly arranged on the inner wall of the ventilation duct 1 .

[0049] Specifically, the air flows along the ventilation duct 1 under the action of the fan, and the interception net 101 at the air inlet end of the ventilation duct 1 intercepts impurities in the air. The filtered and intercepted air passes through the installation grid 4. The methane adsorbent particles placed in the installation grid 4 can absorb the methane gas contained in the air. Then the air continues to flow along the ventilation duct 1. The sensor 104 in the ventilation duct 1 detects the methane content in the passing air. When the sensor 104 detects that the methane content in the air exceeds a preset value, the background program controls the electric push rod 3 to operate, so that the electric push rod 3 pulls the baffle 301 downward, and the baffle 301 no longer blocks the feed inlet 102. The methane adsorbent particles stored in the storage shell 2 fall onto the mounting grid 4 through the feed port 102, and the saturated methane adsorbent particles on the mounting grid 4 are replaced. The methane adsorbent particles can be automatically replaced, reducing the workload and difficulty of the staff; and the methane adsorbent particles in the mounting grid 4 are driven to shake by the driving component, so that the methane adsorbent particles are evenly spread on the mounting grid 4, and the continuously shaking methane adsorbent particles can effectively prevent the saturation of some methane adsorbent particles in the mounting grid 4, affecting the adsorption effect of other methane adsorbent particles on methane in the gas, thereby reducing the replacement cycle of methane adsorbent particles and ensuring the methane adsorption effect.

[0050] Example 2: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Fig. 9, a safety detection device for mining ventilation equipment, based on Example 1, further, the installation grid 4 includes a fixed grid 401 fixed in the ventilation duct 1 and a movable grid 402 slidably connected to the discharge port 103, the movable grid 402 includes a moving frame 4021 slidably connected in the ventilation duct 1 and a swing frame 4022 rotatably connected to both sides of the moving frame 4021 through a pin shaft, the pin shaft is provided with a torsion spring for driving the swing frame 4022 to reset and rotate, and the top wall of the swing frame 4022 is movably against the inner wall of the material receiving shell 5.

[0051] Furthermore, a rack plate 6 is fixedly provided at the bottom of the baffle 301 , and a push frame 601 movably abutting against the top wall of the swing frame 4022 is fixedly provided at the bottom of the rack plate 6 , and the push frame 601 is slidably connected to the material receiving shell 5 .

[0052] Furthermore, the fixed grid 401 includes a fixed frame 4011 fixed in the ventilation duct 1 and a rotating frame 4012 rotatably connected to the fixed frame 4011, the rotating frame 4012 is placed on the lower side of the feed port 102, and a rotating rod 7 fixed to the rotating frame 4012 is rotatably connected in the ventilation duct 1, a coil spring 701 is sleeved on the outer side of the rotating rod 7, the coil spring 701 is arranged inside the side wall of the ventilation duct 1, and a movable gear 702 meshingly connected to the rack plate 6 is also arranged on the rotating rod 7.

[0053] Specifically, when the sensor 104 detects that the methane content contained in the air exceeds the preset value, the background program controls the electric push rod 3 to operate, so that the electric push rod 3 pulls the baffle 301 to move downward, and the baffle 301 no longer blocks the feed port 102, and the methane adsorbent particles stored in the storage shell 2 fall onto the fixed grid 401 through the feed port 102. As the baffle 301 continues to move downward, the baffle 301 drives the push frame 601 to push the top of the swing frame 4022 through the rack plate 6, so that the side of the swing frame 4022 flips relative to the moving frame 4021, so that the methane adsorbent particles placed on the swing frame 4022 slide down the inclined surface into the material receiving shell 5, and the rack plate 6 meshes with the movable gear 702 during the downward movement, and the rotating rod 7 drives the rotating The movable frame 4012 flips over, so that the methane adsorbent particles fall on the flipped rotating frame 4012, and then the electric push rod 3 is controlled to push the baffle 301 to move up, so that the baffle 301 blocks the feed inlet 102 again. When the baffle 301 moves up, the push frame 601 no longer pushes down the swing frame 4022, and the swing frame 4022 resets and rotates. At this time, the engagement of the rack plate 6 and the movable gear 702 will drive the rotating rod 7 to reset and rotate, and the rotating rod 7 drives the rotating frame 4012 to flip over, and the opening of the rotating frame 4012 faces upward, so that the methane adsorbent particles that fall from the storage shell 2 into the rotating frame 4012 fall on the reset swing frame 4022, thereby realizing automatic replacement of the methane adsorbent particles and reducing the workload and difficulty of the staff.

[0054] Example 3: Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 , Fig. 9 and Fig.10 , a safety detection device for mining ventilation equipment, based on Example 2, further, the driving component includes a rotating shaft 8 rotatably connected to the ventilation duct 1, the rotating shaft 8 is evenly provided with paddles 801 in a circumferential manner, the ventilation duct 1 is placed on the upper side of the rotating shaft 8 and is fixed with an air guide plate 9, the air guide plate 9 is provided with a plurality of air guide grooves 901, and the ventilation duct 1 is also rotatably connected with a half gear 802 and a driven gear 10 that mesh with each other, the half gear 802 is fixedly connected to the rotating shaft 8, and the driven gear 10 is provided with a winding rod 11, and the winding rod 11 is wound with a first pull rope 111 connected to the moving frame 4021.

[0055] Furthermore, the movable frame 4021 includes a frame body 12 slidably connected to the ventilation duct 1 and a slider 121 fixed to the frame body 12, the end of the first pull rope 111 away from the winding rod 11 is connected to the slider 121, and a sliding groove 122 for the slider 121 to slide is opened in the ventilation duct 1, and a first elastic element 123 is arranged between the inner wall of the sliding groove 122 and the slider 121.

[0056] Specifically, the air flowing in the ventilation duct 1 exerts a thrust on the toggle plate 801 under the action of the air guide plate 9, so that the toggle plate 801 drives the rotating shaft 8 to rotate, and the half gear 802 on the rotating shaft 8 is meshed with the driven gear 10 on the winding rod 11 for transmission, so that the winding rod 11 intermittently reels or releases the first pull rope 111, and then the first pull rope 111 cooperates with the first elastic element 123 to drive the slider 121 to reciprocate in the slide groove 122. The first elastic element 123 can be a spring. When the slider 121 moves, it drives the moving frame 4021 and the swing frame 402 2 reciprocating movement, so that the methane adsorbent particles on the swing frame 4022 swing back and forth, so that the methane adsorbent particles are evenly spread on the movable grid frame 402, ensuring that the methane adsorbent particles in the mounting grid frame 4 fully absorb the methane in the air, avoiding the occurrence of methane absorption dead corners, and the methane adsorbent particles swing with the swing of the mounting grid frame 4 during use, effectively preventing the methane adsorbent particles in the mounting grid frame 4 from being saturated and affecting the methane adsorption effect of other methane adsorbent particles on the gas, reducing the replacement cycle of the methane adsorbent particles, and ensuring the methane adsorption effect.

[0057] Example 4: Reference Figure 1 , Figure 2 , Figure 4 , Figure 6 and Fig.11A safety detection device for mine ventilation equipment, based on Example 3, further, a shell 13 is fixedly provided on the outside of the ventilation duct 1, a partition 131 slidably connected to the ventilation duct 1 is slidably connected inside the shell 13, a second elastic element 132 is arranged between the partition 131 and the inner wall of the shell 13, a reel 14 is fixedly provided on the rotating rod 7, a second pull rope 141 is wound around the reel 14, and an end of the second pull rope 141 away from the reel 14 passes through the ventilation duct 1 and the shell 13 and is connected to the partition 131.

[0058] Furthermore, a return pipe 15 is fixedly provided on the ventilation duct 1, and an air inlet 151 and an air outlet 152 matching the return pipe 15 are opened on the ventilation duct 1. A shell 16 is fixedly provided on the outside of the ventilation duct 1 at the air inlet 151, and a sealing plate 161 for sealing the air inlet 151 is slidably connected inside the shell 16. A third elastic element 162 is arranged between the sealing plate 161 and the inner wall of the shell 16, and a recessed hole 1611 for connecting the return pipe 15 and the air inlet 151 is opened on the sealing plate 161.

[0059] Furthermore, a force-bearing inclined surface 1612 is provided at the bottom of the sealing plate 161 , and an extrusion inclined surface 1311 movably opposed to the force-bearing inclined surface 1612 is provided on the partition plate 131 .

[0060] Specifically, during the replacement of the methane adsorbent particles, the rotation of the outer reel 14 of the rotating rod 7 will reel in the second pull rope 141, so that the second pull rope 141 pulls the partition 131, and the partition 131 moves out of the shell 13 and squeezes the force-bearing inclined surface 1612 of the sealing plate 161. When the partition 131 moves, it pushes the sealing plate 161 upward, so that the concave hole 1611 of the sealing plate 161 coincides with the air inlet 151, and then the partition 131 blocks the air outlet end of the ventilation duct 1, and the air with excessive methane detected by the sensor 104 is blocked and enters the return pipe 15 through the air inlet 151. After entering the return pipe 15, The air flows back into the ventilation duct 1 through the air outlet 152. A wind shield may be provided at the air outlet 152 of the ventilation duct 1 to prevent the air in the ventilation duct 1 from flowing into the return pipe 15 during the flow. The returned air passes through the mounting grid 4 again along the ventilation duct 1. The replaced methane adsorbent particles in the mounting grid 4 are evenly spread on the movable grid 402 due to shaking. The methane adsorbent particles fully absorb the methane in the flowing air, thereby ensuring ventilation safety and preventing the air with excessive methane from circulating at will. It should be noted that the second elastic element 132 and the third elastic element 162 are configured as springs.

[0061] The present invention also discloses a method for using a safety detection device for mining ventilation equipment, comprising the following steps:

[0062] S1: The air flows along the ventilation duct 1 under the action of the fan, and the interception net 101 at the air inlet end of the ventilation duct 1 intercepts impurities in the air. The filtered and intercepted air passes through the installation grid 4. The methane adsorbent particles placed in the installation grid 4 can absorb the methane gas contained in the air. Then the air continues to flow along the ventilation duct 1, and the sensor 104 in the ventilation duct 1 detects the methane content in the passing air;

[0063] S2: When the sensor 104 detects that the methane content in the air exceeds the preset value, the background program controls the electric push rod 3 to operate, so that the electric push rod 3 pulls the baffle 301 downward, and the baffle 301 no longer blocks the feed inlet 102, and the methane adsorbent particles stored in the storage shell 2 fall onto the fixed grid 401 through the feed inlet 102;

[0064] S3: As the baffle 301 continues to move downward, the baffle 301 drives the push frame 601 to push the top of the swing frame 4022 through the rack plate 6, so that the side of the swing frame 4022 flips relative to the moving frame 4021, so that the methane adsorbent particles placed on the swing frame 4022 slide down the slope into the material receiving shell 5;

[0065] During the downward movement of the rack plate 6, the rack plate 6 meshes with the movable gear 702 for transmission, and the rotating rod 7 drives the rotating frame 4012 to flip, so that the methane adsorbent particles fall onto the flipped rotating frame 4012;

[0066] S4: Then the electric push rod 3 is controlled to push the baffle 301 upward, so that the baffle 301 blocks the feed port 102 again. When the baffle 301 moves upward, the push frame 601 no longer pushes down the swing frame 4022, and the swing frame 4022 resets and rotates. At this time, the meshing of the rack plate 6 and the movable gear 702 drives the rotating rod 7 to reset and rotate, and the rotating rod 7 drives the rotating frame 4012 to flip, and the opening of the rotating frame 4012 faces upward, so that the methane adsorbent particles that fall into the storage shell 2 and into the rotating frame 4012 fall on the reset swing frame 4022;

[0067] S5: The air flowing in the ventilation duct 1 applies a thrust to the toggle plate 801 under the action of the air guide plate 9, so that the toggle plate 801 drives the rotating shaft 8 to rotate, and the half gear 802 on the rotating shaft 8 meshes with the driven gear 10 on the winding rod 11 for transmission, so that the winding rod 11 intermittently reels or releases the first pull rope 111, and then the first pull rope 111 cooperates with the first elastic element 123 to drive the slider 121 to move back and forth in the slide groove 122, and the slider 121 drives the movable frame 4021 and the swing frame 4022 to move back and forth, so that the methane adsorbent particles on the swing frame 4022 swing back and forth, so that the methane adsorbent particles are evenly spread on the movable grid 402 and adsorb methane in the air passing through the installation grid 4.

[0068] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety detection device for mining ventilation equipment, comprising a ventilation duct (1), wherein an interception net (101) is provided at the air inlet end of the ventilation duct (1), characterized in that: Also includes: A material storage shell (2), the material storage shell (2) being sleeved on the outside of the ventilation duct (1) and used for storing methane adsorbent particles, the ventilation duct (1) being provided with a material feed port (102) connected to the material storage shell (2), the ventilation duct (1) being fixed with an electric push rod (3), the telescopic end of the electric push rod (3) being connected to a baffle (301) for blocking the material feed port (102); A mounting grid (4), the mounting grid (4) being arranged in the ventilation duct (1) and used for placing methane adsorbent particles, and a driving component for driving the mounting grid (4) to move is arranged in the ventilation duct (1); A material receiving shell (5), the material receiving shell (5) being fixedly arranged on the outside of the ventilation duct (1), and the ventilation duct (1) being provided with a material discharge port (103) which is in communication with the material receiving shell (5); Wherein, a sensor (104) for detecting methane is fixedly provided on the inner wall of the ventilation duct (1); The mounting grid (4) comprises a fixed grid (401) fixed in the ventilation duct (1) and a movable grid (402) slidably connected to the material outlet (103); the movable grid (402) comprises a moving frame (4021) slidably connected in the ventilation duct (1) and a swinging frame (4022) rotatably connected to both sides of the moving frame (4021) via a pin shaft; a torsion spring for driving the swinging frame (4022) to return and rotate is sleeved on the pin shaft; the top wall of the swinging frame (4022) movably abuts against the inner wall of the material receiving shell (5); A rack plate (6) is fixedly provided at the bottom of the baffle (301), a push frame (601) movably abutting against the top wall of the swing frame (4022) is fixedly provided at the bottom of the rack plate (6), and the push frame (601) is slidably connected to the material receiving shell (5); The fixed grid (401) comprises a fixed frame (4011) fixedly arranged in the ventilation duct (1) and a rotating frame (4012) rotatably connected to the fixed frame (4011), the rotating frame (4012) being placed at the lower side of the feed port (102), a rotating rod (7) rotatably connected to the rotating frame (4012) being arranged in the ventilation duct (1), a coil spring (701) being sleeved on the outer side of the rotating rod (7), the coil spring (701) being arranged inside the side wall of the ventilation duct (1), and a movable gear (702) meshingly connected to the rack plate (6) being also arranged on the rotating rod (7); The driving assembly comprises a rotating shaft (8) rotatably connected to the ventilation duct (1), the rotating shaft (8) being provided with paddles (801) evenly arranged in a circumferential manner, the ventilation duct (1) being provided with an air guide plate (9) on the upper side of the rotating shaft (8), the air guide plate (9) being provided with a plurality of air guide grooves (901), the ventilation duct (1) also being rotatably connected with a half gear (802) and a driven gear (10) meshing with each other, the half gear (802) being fixedly connected to the rotating shaft (8), the driven gear (10) being provided with a winding rod (11), the winding rod (11) being wound with a first pull rope (111) connected to the moving frame (4021); The movable frame (4021) comprises a frame body (12) slidably connected to the ventilation duct (1) and a slider (121) fixedly connected to the frame body (12); an end of the first pull rope (111) away from the rolling rod (11) is connected to the slider (121); a slide groove (122) for the slider (121) to slide is provided in the ventilation duct (1); and a first elastic element (123) is provided between the inner wall of the slide groove (122) and the slider (121); A shell (13) is fixedly provided on the outside of the ventilation duct (1), a partition (131) slidably connected to the ventilation duct (1) is slidably connected inside the shell (13), a second elastic element (132) is provided between the partition (131) and the inner wall of the shell (13), a reel (14) is fixedly provided on the rotating rod (7), a second pull rope (141) is wound around the reel (14), and an end of the second pull rope (141) away from the reel (14) passes through the ventilation duct (1) and the shell (13) and is connected to the partition (131); The ventilation duct (1) is fixedly provided with a return pipe (15), and the ventilation duct (1) is provided with an air inlet (151) and an air outlet (152) which cooperate with the return pipe (15); a shell (16) is fixedly provided on the outside of the ventilation duct (1) at the air inlet (151); a sealing plate (161) for sealing the air inlet (151) is slidably connected inside the shell (16); a third elastic element (162) is provided between the sealing plate (161) and the inner wall of the shell (16); and a concave hole (1611) for connecting the return pipe (15) and the air inlet (151) is provided on the sealing plate (161); The bottom of the sealing plate (161) is provided with a force-bearing inclined surface (1612), and the partition plate (131) is provided with an extrusion inclined surface (1311) that movably contacts the force-bearing inclined surface (1612).

2. A method for using the safety detection device for mining ventilation equipment according to claim 1, characterized in that: The following steps are involved: S1: air flows along the ventilation duct (1) under the action of the fan, the interception net (101) at the air inlet end of the ventilation duct (1) intercepts impurities in the air, the filtered and intercepted air passes through the installation grid (4), the methane adsorbent particles placed in the installation grid (4) can absorb the methane gas contained in the air, and then the air continues to flow along the ventilation duct (1), and the sensor (104) in the ventilation duct (1) detects the methane content in the passing air; S2: When the sensor (104) detects that the methane content in the air exceeds a preset value, the background program controls the electric push rod (3) to operate, so that the electric push rod (3) pulls the baffle (301) downward, and the baffle (301) no longer blocks the feed inlet (102), and the methane adsorbent particles stored in the storage shell (2) fall onto the fixed grid (401) through the feed inlet (102); S3: As the baffle plate (301) continues to move downward, the baffle plate (301) drives the push frame (601) to push the top of the swing frame (4022) through the rack plate (6), so that the side of the swing frame (4022) flips relative to the moving frame (4021), so that the methane adsorbent particles placed on the swing frame (4022) slide down along the inclined surface into the material receiving shell (5); During the downward movement of the rack plate (6), the rack plate (6) meshes with the movable gear (702) for transmission, and the rotating rod (7) drives the rotating frame (4012) to flip, so that the methane adsorbent particles fall onto the flipped rotating frame (4012); S4: Then, the electric push rod (3) is controlled to push the baffle (301) upward, so that the baffle (301) blocks the feed port (102) again. When the baffle (301) moves upward, the push frame (601) no longer pushes the swing frame (4022) downward, and the swing frame (4022) resets and rotates. At this time, the meshing of the rack plate (6) and the movable gear (702) drives the rotating rod (7) to reset and rotate. The rotating rod (7) drives the rotating frame (4012) to flip, and the opening of the rotating frame (4012) faces upward, so that the methane adsorbent particles that fall into the storage shell (2) and into the rotating frame (4012) fall onto the reset swing frame (4022); S5: The air flowing in the ventilation duct (1) exerts a thrust on the toggle plate (801) under the action of the air guide plate (9), so that the toggle plate (801) drives the rotating shaft (8) to rotate, and the half gear (802) on the rotating shaft (8) meshes with the driven gear (10) on the reel (11) to drive, so that the reel (11) intermittently reels or releases the first pull rope (111), thereby causing the first pull rope (111) to cooperate with the first elastic element (123) to drive the slider (121) to move back and forth in the slide groove (122), and the slider (121) drives the movable frame (4021) and the swing frame (4022) to move back and forth, so that the methane adsorbent particles on the swing frame (4022) swing back and forth, so that the methane adsorbent particles are evenly spread on the movable grid frame (402) and adsorb methane in the air passing through the installation grid frame (4).

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