A coal mine dust removal and ventilation equipment

Abstract

The application relates to the technical field of mine ventilation equipment, and discloses a coal mine dust removal ventilation equipment, which comprises a wind pipe, the top of the bottom plate of the inner cavity of the wind pipe is provided with an air extraction assembly for air extraction, the inside of the wind pipe is provided with a collecting assembly for dust removal, the collecting assembly comprises a lower baffle and an upper baffle, the lower baffle and the upper baffle are fixed at the sides of the bottom plate and the top plate of the inner cavity of the wind pipe respectively, the surface of the middle position of the upper baffle is fixed with a cylinder, the output shaft of the cylinder penetrates through the top of the wind pipe, the top of the output shaft of the cylinder is rotationally connected with a linkage plate, and the bottom of the linkage plate is inlaid with a magnetic sheet group. The coal mine dust removal ventilation equipment is provided with an activated carbon box group in the inside of the wind pipe, when the air extraction assembly carries out extraction ventilation, after air enters the wind pipe, the air first passes through activated carbon particles in the activated carbon box group to carry out dehumidification and dust removal, the influence of dust and moisture on the impeller of the air extractor is reduced, and the ventilation efficiency of the air extractor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mine ventilation equipment, in particular to coal mine dust removal ventilation equipment. Background Art

[0002] Coal mines are generally divided into underground mines and open-pit coal mines. When mining in underground coal mines, it is usually necessary to dig out mine tunnels to transport coal. Since underground coal mines are far away from the surface, the air inside them is dusty and humid. Therefore, during the coal mining process, coal mine dust removal and ventilation equipment is needed.

[0003] General coal mine ventilation methods are divided into exhaust ventilation and forced ventilation. When using the exhaust ventilation method, axial flow fans are often used for exhaust ventilation. However, during the ventilation process of the axial flow fan, the humid air in the mine will wet the impeller. When the dust passes through, some of the dust will adhere to the impeller containing moisture, resulting in an increase in the load of the impeller, thereby reducing its actual ventilation volume and increasing power consumption. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a coal mine dust removal and ventilation device, which solves the problems raised in the above background technology.

[0005] The present invention provides the following technical solution: a coal mine dust removal and ventilation device, comprising an air duct and an exhaust fan, wherein a collection assembly for dust removal is provided inside the air duct;

[0006] The collecting assembly includes a lower baffle and an upper baffle, which are respectively fixed to one side of the bottom plate and the top plate of the air duct cavity. A cylinder is fixed to the surface at the middle position of the upper baffle, and the output shaft of the cylinder passes through the top of the air duct. The top of the cylinder output shaft is rotatably connected to a linkage plate, and the bottom of the linkage plate is inlaid with a magnetic sheet group. The interior of the lower baffle is slidably connected to an activated carbon box group, and the activated carbon box group is slidably connected to the upper baffle and the air duct.

[0007] A cover sleeve is clamped on the top of the activated carbon box group, and the cover sleeve and the magnetic sheet group are adsorbed to each other.

[0008] Optionally, an exhaust assembly for exhausting air is provided on the top of the bottom plate of the air duct cavity; the exhaust assembly includes a base, which is fixed to the bottom plate of the air duct cavity, away from the side of the lower baffle, the inner wall of the base is fixed with a support member, the top of the support member is fixed with a water cooling jacket, the two ends of the bottom of the water cooling jacket are respectively fixed with a liquid inlet and a liquid outlet, and the interior of the water cooling jacket is fixed with an exhaust fan;

[0009] A water channel is provided inside the water cooling jacket, the water channel being connected to the liquid inlet and the liquid outlet, a diverter plate being fixed in the middle of the water channel, a heat conducting plate group being fixed on the side of the water channel close to the impeller of the exhaust fan, a heat sink being fixed on the top of the heat conducting plate group, and the heat sink passing through the water cooling jacket, and air holes being provided on the surface of the heat sink.

[0010] Optionally, a water storage cavity is opened inside the bottom plate of the air duct, a water pump is fixed inside the water storage cavity, a water outlet hose is fixed to the water outlet end of the water pump, one end of the water outlet hose is threadedly connected to and communicated with the liquid inlet, the internal thread of the liquid outlet is connected to a drain hose, and one end of the drain hose is located inside the water storage cavity, and a heat dissipation fin is clamped inside the water storage cavity near one end of the exhaust fan, and the heat dissipation end of the heat dissipation fin passes through the outer wall of the air duct.

[0011] Optionally, a limiting plate is fixed on the top of the inner cavity bottom plate of the air duct close to the lower baffle, and the limiting plate is located below the lower baffle. The interior of the limiting plate is slidably connected to a dust collecting rack, and the dust collecting rack is slidably connected to the outer wall of the air duct. A through groove is provided on the inner cavity bottom plate of the air duct at the middle of the limiting plate.

[0012] Optionally, a first spring group is fixed on both sides of the bottom plate of the inner cavity of the dust collecting rack, an arc-shaped plate is fixed on the top of the first spring group, a water storage box is fixed at the bottom of the middle position of the arc-shaped plate, the water storage box is slidably connected to the bottom of the dust collecting rack, and water holes are formed on the surfaces of both sides of the water storage box.

[0013] Optionally, a sleeve is fixed to the bottom of the cover sleeve, a top rod is slidably connected to the inside of the sleeve, a second spring is fixed to the top of the top rod, a paddle group is fixed to the surface of the top rod, one end of the second spring is fixed to the bottom of the cover sleeve, and the second spring is located inside the sleeve, the sleeve and the top rod are located inside the activated carbon box group, and the bottom of the top rod is slidably connected to the bottom of the activated carbon box group.

[0014] Optionally, a guide frame is fixed to one end of the inner wall on both sides of the air duct close to the lower baffle, and an air suction port is opened to one end of the outer wall on both sides of the air duct close to the guide frame.

[0015] Optionally, a limiting frame is fixed to one end of the outer wall of both sides of the air duct close to the guide frame, and a side baffle is slidably connected to the inside of the limiting frame. A ventilation groove group is provided inside the side baffle, a connecting plate is fixed to the top of the side baffle, and an embedded groove group is provided on the side of the side baffle close to the air duct.

[0016] Optionally, a third spring group is fixed inside the embedded groove group, a truss is fixed at one end of the third spring group, a strut group is fixed on the surface of the truss, the truss and the strut group are slidingly connected to the embedded groove group, the connecting plate and the magnetic plate group are adsorbed on each other, and the strut group corresponds to the air exhaust port.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This coal mine dust removal and ventilation equipment uses an activated carbon box group installed inside the air duct. When the exhaust component performs exhaust ventilation, after the air enters the air duct, it first passes through the activated carbon particles in the activated carbon box group for dehumidification and dust removal, reducing the impact of dust and moisture on the exhaust fan impeller, thereby improving the ventilation efficiency of the exhaust fan.

[0019] 2. The coal mine dust removal and ventilation equipment, at the same time, the water droplets collected and condensed by the activated carbon particles in the activated carbon box group are collected and discharged into the water storage chamber as a replenishing liquid, which reduces the use of coolant. At the same time, the temperature difference between the latter half of the coolant and the water cooling jacket is increased through the heat conduction plate group and the heat sink, which improves the heat dissipation efficiency of the coolant and the water cooling jacket to the exhaust fan, thereby increasing the effective working time of the exhaust fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a front view of the structure of the present invention;

[0022] Figure 3 This is a cross-sectional view of the structure of the air duct of the present invention;

[0023] Figure 4 This is a schematic structural diagram of the side baffle, connecting plate and linkage plate of the present invention;

[0024] Figure 5 It is a structural diagram of the truss and the brace group of the present invention;

[0025] Figure 6 Schematic diagram of the structure distribution of the magnetic sheet group of the present invention;

[0026] Figure 7 It is a side view of the structure of the present invention;

[0027] Figure 8 It is a structural cross-sectional view of the sleeve, the top rod and the water storage box of the present invention;

[0028] Figure 9 This is a schematic structural diagram of the ventilation assembly of the present invention;

[0029] Figure 10 This is a cross-sectional view of the structure of the water cooling jacket of the present invention;

[0030] Figure 11 Schematic diagram of the positional relationship between the heat conducting plate assembly and the heat sink of the present invention;

[0031] Figure 12 It is a structural cross-sectional view of the guide frame of the present invention.

[0032] In the figure: 1. Air duct; 2. Machine base; 21. Support member; 22. Water cooling jacket; 221. Liquid inlet; 222. Liquid outlet; 23. Exhaust fan; 24. Water channel; 25. Diverter plate; 26. Heat conducting plate assembly; 27. Heat sink; 3. Water storage chamber; 31. Water pump; 32. Water outlet hose; 33. Drain hose; 34. Heat sink fin; 4. Lower baffle; 41. Upper baffle; 42. Cylinder; 43. Linkage plate; 431. Magnetic plate assembly; 44. Activated carbon Box group; 45. Cover sleeve; 5. Limit plate; 501. Through groove; 51. Dust collecting frame; 52. First spring group; 53. Arc plate; 54. Water storage box; 55. Water hole; 6. Sleeve; 61. Push rod; 62. Second spring; 63. Paddle group; 7. Guide frame; 71. Air outlet; 8. Limit frame; 81. Side baffle; 82. Ventilation groove group; 83. Connecting plate; 84. Embedded groove group; 9. Third spring group; 91. Truss; 92. Strut group. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-12 , a coal mine dust removal and ventilation equipment, including an air duct 1, an exhaust assembly for exhausting air is provided on the top of the inner bottom plate of the air duct 1, a collection assembly for dust removal is provided inside the air duct 1, and the collection assembly includes a lower baffle 4 and an upper baffle 41, which are respectively fixed to one side of the inner bottom plate and the top plate of the air duct 1, a cylinder 42 is fixed to the surface of the middle position of the upper baffle 41, the output shaft of the cylinder 42 passes through the top of the air duct 1, and the top of the output shaft of the cylinder 42 is rotatably connected to a linkage plate 43, the bottom of the linkage plate 43 is inlaid with a magnetic sheet group 431, an activated carbon box group 44 is slidably connected to the interior of the lower baffle 4, and the activated carbon box group 44 is slidably connected to the upper baffle 41 and the air duct 1;

[0035] A cover sleeve 45 is clamped on the top of the activated carbon cartridge assembly 44, and the cover sleeve 45 and the magnetic sheet assembly 431 are attracted to each other. The exhaust assembly includes a base 2, which is fixed to the bottom plate of the inner cavity of the air duct 1, away from the side of the lower baffle 4. A support member 21 is fixed to the inner wall of the base 2, and a water cooling jacket 22 is fixed to the top of the support member 21. The two ends of the bottom of the water cooling jacket 22 are respectively fixed with a liquid inlet 221 and a liquid outlet 222. An exhaust fan 23 is fixed inside the water cooling jacket 22;

[0036] The interior of the water-cooling jacket 22 is provided with a water channel 24, which is connected to the liquid inlet 221 and the liquid outlet 222. A diverter plate 25 is fixed at the middle position of the water channel 24, and a heat conducting plate group 26 is fixed on the side of the water channel 24 near the impeller of the exhaust fan 23. A heat sink 27 is fixed on the top of the heat conducting plate group 26, and the heat sink 27 passes through the water-cooling jacket 22. Air holes are provided on the surface of the heat sink 27, and a water storage chamber 3 is provided inside the bottom plate of the air duct 1. A water pump 31 is fixed inside the water storage chamber 3, and a water outlet hose 32 is fixed to the water outlet end of the water pump 31. One end of the water outlet hose 32 is threadedly connected to and connected with the liquid inlet 221, and a drain hose 33 is threadedly connected to the inside of the liquid outlet 222, and one end of the drain hose 33 is located inside the water storage chamber 3. A heat dissipation fin 34 is clamped inside the water storage chamber 3 near one end of the water-cooling jacket 22, and the heat dissipation end of the heat dissipation fin 34 passes through the outer wall of the air duct 1;

[0037] During the specific operation, the present invention is first placed at the entrance of the mine, and then the power is connected. Then, the exhaust fan 23 is started by the controller. When the exhaust fan 23 is started, wind power is generated and the air in the mine is sucked into the interior of the air duct 1, and then discharged to the outside of the mine through the air duct 1, thereby achieving the purpose of exhaust ventilation.

[0038] Specifically, after the exhaust fan 23 is started, when the air in the mine tunnel is drawn into the interior of the air duct 1, the air first passes through the activated carbon cartridge group 44, and some moisture and dust in the air are adsorbed by the activated carbon particles filled in the activated carbon cartridge group 44. When the air in the mine tunnel is extracted for ventilation, the probability of moist dust adhering to the surface of the impeller of the exhaust fan 23 is reduced, thereby reducing the burden on the impeller, and making the ventilation volume of the air extracted by the impeller of the exhaust fan 23 more stable;

[0039] When the activated carbon cartridge group 44 needs to be replaced, the exhaust fan 23 can continue to perform the extraction ventilation operation, and then the linkage plate 43 can be rotated so that the linkage plate 43 drives the magnetic sheet group 431 and the cover sleeve 45 to be desorbed, and then the cover sleeve 45 can be pulled to successively extract the activated carbon cartridge group 44 from the lower baffle 4, the upper baffle 41 and the interior of the air duct 1. When the activated carbon cartridge group 44 is extracted, the cover sleeve 45 on the top of the activated carbon cartridge group 44 can be opened, and then the activated carbon particles inside the activated carbon cartridge group 44 can be replaced. After the replacement is completed, the activated carbon cartridge group 44 can be inserted into the interior of the air duct 1, the upper baffle 41 and the lower baffle 4 again, and then the linkage plate 43 can be rotated so that the magnetic sheet group 431 is adsorbed and fixed to the cover sleeve 45 again.

[0040] During the ventilation process of the exhaust fan 23, as the exhaust fan 23 is continuously used, the motor of the exhaust fan 23 will gradually heat up. Therefore, when the exhaust fan 23 is started, the water pump 31 can be started by the controller, and the coolant in the water storage chamber 3 is pumped to the water outlet hose 32 by the water pump 31, and the coolant is transported to the inside of the water channel 24 through the water outlet hose 32, so that the coolant enters the inside of the water channel 24 and cools the water cooling jacket 22, and then the water cooling jacket 22 cools the motor of the exhaust fan 23, thereby improving the safety and working time of the exhaust fan 23, thereby increasing the effective working time of the exhaust ventilation of the exhaust fan 23, and thus improving the efficiency of mine ventilation;

[0041] Furthermore, after the coolant enters the water channel 24, a diverter plate 25 is fixed in the middle of the water channel 24, that is, the water channel 24 is separated into two spaces by the diverter plate 25. Moreover, since the diverter plate 25 has a certain height, the water level of the coolant needs to be higher than the diverter plate 25 after entering the water channel 24 in order to fill the entire water channel 24. This prevents the coolant from being directly discharged along the bottom of the water channel 24 by the drainage hose 33 after entering the water channel 24, thereby increasing the contact area between the coolant and the inner wall of the water channel 24.

[0042] Compared with the spiral water channel in the traditional motor water-cooling shell, the present invention has no restrictions on the water channel, so that the contact and heat exchange area between the coolant and the water channel 24 is greatly increased, thereby significantly improving the heat exchange effect between the water-cooling jacket 22 and the exhaust fan 23, thereby significantly improving the heat dissipation efficiency of the exhaust fan 23, and thus extending the effective working time of the exhaust ventilation of the exhaust fan 23;

[0043] Furthermore, after the coolant enters the water channel 24 and the water level gradually rises under the action of the diverter plate 25, the coolant contacts the heat transfer plate group 26. At this time, the coolant preferentially contacts the portion of the water cooling jacket 22 close to the impeller, completing partial heat exchange, and the temperature of the coolant also rises. At this time, the coolant contacts the heat transfer plate group 26 and conducts heat between the heat transfer plate group 26 and the heat sink 27, pre-dissipating the heat of the already heated coolant. The heat sink 27 is in the heat dissipation process. , with the help of the air flow extracted by the impeller of the exhaust fan 23 blowing on the heat sink 27, the heat sink 27 improves the heat dissipation effect of the coolant. After the coolant passes through the heat conducting plate group 26 and the heat sink 27 for pre-cooling, it enters the water channel 24, into the space away from the impeller. At this time, the temperature difference between the coolant and the space is further expanded, thereby improving the heat dissipation effect of the coolant on the entire water cooling jacket 22, improving the uniformity of heat dissipation of the entire water cooling jacket 22, and thus avoiding uneven heat dissipation of the water cooling jacket 22 to the exhaust fan 23;

[0044] Subsequently, the coolant is discharged again into the water storage chamber 3 through the liquid outlet 222 and the drain hose 33, and the coolant is cooled by the heat dissipation fins 34 so that the coolant can circulate and dissipate heat to the exhaust fan 23;

[0045] Compared with the spiral water channel in the traditional motor water-cooling shell, due to the limitation of a single line, as the coolant gradually flows in the spiral water channel, the temperature difference between the coolant and the heat dissipated body gradually decreases, which leads to uneven heat dissipation. The present invention performs pre-heating during the flow of the coolant, thereby expanding the temperature difference between the coolant in the second half of its stroke and the heat dissipated body, thereby improving the heat dissipation effect of the second half of the coolant stroke.

[0046] It should be noted that the present invention is provided with a water supply and drainage pipe on the outside, through which the coolant can be injected into and discharged from the water storage chamber 3. The coolant in the present invention is cooled by clean water, and the sides and bottom of the activated carbon box group 44 are provided with vents to ensure that air can come into contact with the activated carbon particles.

[0047] The ends of the water outlet hose 32 and the drain hose 33 are both provided with water pipe connectors, and are connected to the liquid inlet 221 and the liquid outlet 222 through the water pipe connectors. The bottom of the base 2 is fixed to the top of the bottom plate of the inner cavity of the air duct 1 by bolts. When the bolts are released and the water outlet hose 32 and the liquid inlet 221, and the drain hose 33 and the liquid outlet 222 are disconnected, the base 2 can be removed from the inside of the air duct 1 for replacement. If it is not replaced and only maintenance is required, the base 2 can be directly entered into the air duct 1 for maintenance. All devices of the present invention are controlled by a controller.

[0048] Among them, when the present invention is set up, multiple groups will be set up according to the actual depth of the coal mine tunnel, and the dust content and moisture content in the air at different positions in the mine tunnel are also different. In places with high moisture content, the activated carbon box group 44 of the present invention is saturated faster, and when the activated carbon particles in the activated carbon box group 44 are over-saturated, they no longer absorb moisture, while the moisture is still in full contact with the activated carbon particles, and then the moisture continues to adhere to the surface of the activated carbon particles and gradually condenses into water droplets.

[0049] Embodiment 2: The air duct 1 is close to the lower baffle 4, and the top of the inner cavity bottom plate is fixed with a limit plate 5, and the limit plate 5 is located below the lower baffle 4. The inner portion of the limit plate 5 is slidably connected to a dust collecting rack 51, and the dust collecting rack 51 is slidably connected to the outer wall of the air duct 1. A through groove 501 is opened at the middle position of the limit plate 5 on the inner cavity bottom plate of the air duct 1. A first spring group 52 is fixed on both sides of the inner cavity bottom plate of the dust collecting rack 51. An arc plate 53 is fixed on the top of the first spring group 52. A water storage box 54 is fixed at the bottom of the middle position of the arc plate 53. The water storage box 54 is slidably connected to the bottom of the dust collecting rack 51, and water holes 55 are formed on the surfaces of both sides of the water storage box 54.

[0050] A sleeve 6 is fixed to the bottom of the cover sleeve 45, and a push rod 61 is slidably connected to the interior of the sleeve 6. A second spring 62 is fixed to the top of the push rod 61, and a paddle assembly 63 is fixed to the surface of the push rod 61. One end of the second spring 62 is fixed to the bottom of the cover sleeve 45, and the second spring 62 is located inside the sleeve 6. The sleeve 6 and the push rod 61 are located inside the activated carbon box group 44, and the bottom of the push rod 61 is slidably connected to the bottom of the activated carbon box group 44.

[0051] Specifically, based on the first embodiment, when the activated carbon particles in the activated carbon box group 44 dehumidify and remove dust from the air entering the air duct 1, some moisture and dust are adsorbed on the surface of the activated carbon particles until they condense into water droplets. Under the influence of gravity, the water droplets fall to the bottom of the activated carbon box group 44 and pass through the vents at the bottom of the activated carbon box group 44 into the interior of the dust collection rack 51, so that the condensed water droplets adsorbed by the activated carbon particles are collected inside the dust collection rack 51.

[0052] Furthermore, since the activated carbon particles are filled inside the activated carbon box group 44, the probability of the activated carbon particles in the outer layer coming into contact with the air is much greater than that of the activated carbon particles in the inner layer. Therefore, during the dehumidification and dust removal process, the cylinder 42 can be controlled by the controller to repeatedly return and eject, so that the cylinder 42 drives the linkage plate 43 to repeatedly return and eject, and the linkage plate 43 drives the magnetic sheet group 431 to return and eject, and the magnetic sheet group 431 drives the cover 45 and the activated carbon box group 44 to repeatedly move up and down along the vertical direction of the cylinder 42, thereby achieving the purpose of shaking the activated carbon box group 44, so that the activated carbon particles in the activated carbon box group 44 are shaken;

[0053] During the shaking of the activated carbon particles in the activated carbon box group 44, the activated carbon particles are constantly flipped and displaced, thereby increasing the probability of each activated carbon particle coming into contact with the air, thereby improving the efficiency of adsorbing moisture and dust in the mine air. At the same time, as the activated carbon particles shake, the water droplets condensed on their surface are also able to fall into the interior of the dust collecting rack 51 more quickly, which not only reduces the effect of water droplets blocking the dehumidification and dust removal of the inner layer of activated carbon particles, but also improves the efficiency of the dust collecting rack 51 in collecting condensed water. After the condensed water falls into the interior of the dust collecting rack 51, it enters the interior of the water storage box 54 through the water through hole 55.

[0054] Furthermore, when the cylinder 42 has fully returned, the cover sleeve 45 abuts against the top of the air duct 1. At this time, the activated carbon box group 44 moves down to its maximum stroke. During this process, the push rod 61 abuts against the curved plate 53 and presses the curved plate 53, so that the curved plate 53 drives the water storage box 54 to move down, so that the water storage box 54 extends out from the bottom of the dust collection rack 51, so that the water through hole 55 is exposed to the interior of the water storage chamber 3, so that the condensed water collected in the water storage box 54 is discharged into the interior of the water storage chamber 3 through the water through hole 55, thereby replenishing the coolant in the water storage chamber 3 and further playing the role of utilizing the condensed water.

[0055] At the same time, during the contact between the curved plate 53 and the top rod 61, the top rod 61 is also subjected to the resistance of the curved plate 53, causing the top rod 61 to move in the opposite direction, causing the top rod 61 to move inside the sleeve 6. During the movement, the top rod 61 drives the paddle group 63 to move synchronously, and plays a role in stirring the activated carbon particles, so that the activated carbon particles are further turned over, thereby further increasing the contact area between the activated carbon particles and moisture and dust in the air, and once again improving the efficiency of dehumidification and dust removal, thereby further reducing the influence of moist dust on the impeller of the exhaust fan 23, thereby improving the efficiency of exhaust ventilation of the exhaust fan 23.

[0056] It should be noted that during the ejection process, the linkage plate 43 drives the magnetic plate group 431 to absorb the cover sleeve 45 and the activated carbon box group 44 to return, so that the arc plate 53 is reset under the elastic force of the first spring group 52, and the ejector rod 61 is slidably connected to the bottom of the activated carbon box group 44, and the bottom of the ejector rod 61 extends to the outside of the bottom end of the activated carbon box group 44, thereby ensuring that the ejector rod 61 can contact the activated carbon box group 44 with the arc plate 53 first.

[0057] Example 3: A guide frame 7 is fixed to one end of the inner wall of both sides of the air duct 1 near the lower baffle 4, and an air extraction port 71 is opened on one end of the outer wall of both sides of the air duct 1 near the guide frame 7. A limiting frame 8 is fixed to one end of the outer wall of both sides of the air duct 1 near the guide frame 7. The inner part of the limiting frame 8 is slidably connected to the side baffle 81, and the inner part of the side baffle 81 is provided with a ventilation groove group 82. A connecting plate 83 is fixed to the top of the side baffle 81, and an embedded groove group 84 is opened on the side of the side baffle 81 near the air duct 1;

[0058] A third spring assembly 9 is fixed inside the embedded groove assembly 84. A truss 91 is fixed to one end of the third spring assembly 9. A support rod assembly 92 is fixed to the surface of the truss 91. The truss 91 and the support rod assembly 92 are slidably connected to the embedded groove assembly 84. The connecting plate 83 and the magnetic plate assembly 431 are attracted to each other, and the support rod assembly 92 corresponds to the air extraction port 71.

[0059] Specifically, based on the first and second embodiments, when the cylinder 42 is not started, that is, in the initial state of the cylinder 42, the magnetic sheet group 431 adsorbs the connecting plate 83, so that the connecting plate 83 drives the side baffle 81 to stay in the specified position, and in this state, the ventilation groove group 82 is aligned with the air extraction port 71. At this time, due to the interior of the air duct 1, through the guidance of the lower baffle 4, the upper baffle 41 and the guide frame 7, a throat is formed inside the air duct 1, and the air circulation speed at the throat is accelerated, that is, the exhaust ventilation speed of the exhaust fan 23 is accelerated. At this time, under the action of the exhaust fan 23, the air on both sides of the air duct 1 can also enter the interior of the air duct 1 through the air extraction port 71, and under the guidance of the guide frame 7, the air entering the interior of the air duct 1 from the air extraction port 71 can pass through the activated carbon box group 44;

[0060] The air entering the air duct 1 from both sides is first filtered by the air extraction port 71 and then dehumidified and dusted by the activated carbon particles in the activated carbon cartridge 44. This increases the air volume of the exhaust fan 23 while reducing the influence of the exhaust fan 23 impeller on the air on both sides of the air duct 1 on the moisture and dust.

[0061] Furthermore, during the return stroke of the cylinder 42, the magnetic sheet group 431 drives the connecting plate 83 to move downward in the vertical direction of the air duct 1, and the connecting plate 83 drives the side baffle 81 to move downward. Since the embedded groove group 84 is provided inside the side baffle 81, and the third spring group 9 is located inside the embedded groove group 84, the side baffle 81 drives the third spring group 9 to move downward synchronously, and the third spring group 9 drives the truss 91 and the support rod group 92 to move downward synchronously until the support rod group 92 corresponds to the air outlet 71. At this time, the support rod group 92 loses the limit of the outer wall of the air duct 1 and is pushed out under the elastic force of the third spring group 9, so that the support rod group 92 is pushed into the interior of the air outlet 71, and then the air outlet 71 is cleaned by the support rod group 92, thereby avoiding the air outlet 71 from being blocked, thereby increasing the air volume of the exhaust fan 23 for exhaust ventilation from both sides of the air duct 1;

[0062] When the cylinder 42 is pushed out, the connecting plate 83 drives the side baffle 81 to move upward, so that the ventilation groove group 82 is aligned with the air extraction port 71 again, and the air extraction port 71 can continue to circulate air.

[0063] It should be noted that when ventilation is stopped, the dust collecting rack 51 can be pulled out from the inside of the air duct 1 and then the dust collecting rack 51 can be cleaned. In the present invention, the cover sleeve 45 and the connecting plate 83 are both made of iron material.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine dust removal and ventilation equipment, comprising an air duct and an exhaust fan, characterized in that: The interior of the air duct is provided with a collection assembly for dust removal; the collection assembly includes a lower baffle and an upper baffle, the lower baffle and the upper baffle are respectively fixed to one side of the bottom plate and the top plate of the inner cavity of the air duct, a cylinder is fixed to the surface at the middle position of the upper baffle, the output shaft of the cylinder passes through the top of the air duct, the top of the cylinder output shaft is rotatably connected to a linkage plate, the bottom of the linkage plate is inlaid with a magnetic sheet group, the interior of the lower baffle is slidably connected to an activated carbon box group, and the activated carbon box group is slidably connected to the upper baffle and the air duct; the top of the activated carbon box group is clamped with a cover sleeve, and the cover sleeve and the magnetic sheet group are adsorbed on each other; An exhaust assembly for exhausting air is provided on the top of the bottom plate of the air duct cavity; the exhaust assembly includes a base, which is fixed to the bottom plate of the air duct cavity, away from the side of the lower baffle, and a support is fixed to the inner wall of the base, a water cooling jacket is fixed on the top of the support, and a liquid inlet and a liquid outlet are respectively fixed at both ends of the bottom of the water cooling jacket, and an exhaust fan is fixed inside the water cooling jacket; A water channel is provided inside the water cooling jacket, the water channel being connected to the liquid inlet and the liquid outlet, a diverter plate being fixed in the middle of the water channel, a heat conducting plate group being fixed on the side of the water channel close to the impeller of the exhaust fan, a heat sink being fixed on the top of the heat conducting plate group, and the heat sink passing through the water cooling jacket, and air holes being provided on the surface of the heat sink; The air duct is close to the lower baffle, and a limit plate is fixed on the top of the inner cavity bottom plate, and the limit plate is located below the lower baffle. The interior of the limit plate is slidably connected to a dust collecting rack, and the dust collecting rack is slidably connected to the outer wall of the air duct. The inner cavity bottom plate of the air duct is provided with a through groove at a position in the middle of the limit plate. A first spring group is fixed on both sides of the bottom plate of the dust collection rack inner cavity, an arc-shaped plate is fixed on the top of the first spring group, a water storage box is fixed at the bottom of the middle position of the arc-shaped plate, the water storage box is slidably connected to the bottom of the dust collection rack, and water holes are formed on the surfaces of both sides of the water storage box; A sleeve is fixed to the bottom of the cover sleeve, a push rod is slidably connected to the inside of the sleeve, a second spring is fixed to the top of the push rod, a paddle group is fixed to the surface of the push rod, one end of the second spring is fixed to the bottom of the cover sleeve, and the second spring is located inside the sleeve, the sleeve and the push rod are located inside the activated carbon box group, and the bottom of the push rod is slidably connected to the bottom of the activated carbon box group.

2. The coal mine dust removal and ventilation equipment according to claim 1, characterized in that: A water storage cavity is provided inside the bottom plate of the air duct, a water pump is fixed inside the water storage cavity, a water outlet hose is fixed to the water outlet end of the water pump, one end of the water outlet hose is threadedly connected to and communicated with the liquid inlet, the internal thread of the liquid outlet is connected to a drain hose, and one end of the drain hose is located inside the water storage cavity, a heat dissipation fin is clamped inside the water storage cavity near one end of the exhaust fan, and the heat dissipation end of the heat dissipation fin passes through the outer wall of the air duct.

3. The coal mine dust removal and ventilation equipment according to claim 1, characterized in that: A guide frame is fixed on one end of the inner wall of both sides of the air duct close to the lower baffle, and an air suction port is opened on one end of the outer wall of both sides of the air duct close to the guide frame.

4. The coal mine dust removal and ventilation equipment according to claim 3, characterized in that: A limiting frame is fixed to one end of the outer wall of both sides of the air duct close to the guide frame, and a side baffle is slidably connected to the inside of the limiting frame. A ventilation groove group is provided inside the side baffle, and a connecting plate is fixed to the top of the side baffle. An embedded groove group is provided on the side of the side baffle close to the air duct.

5. The coal mine dust removal and ventilation equipment according to claim 4, characterized in that: A third spring group is fixed inside the embedded groove group, a truss is fixed at one end of the third spring group, a strut group is fixed on the surface of the truss, the truss and the strut group are slidably connected with the embedded groove group, the connecting plate and the magnetic sheet group are adsorbed on each other, and the strut group corresponds to the air exhaust port.

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