Coal mine dust removal device

Abstract

The invention discloses a coal mine dust removal device which comprises a dust removal box, a ventilation device, a first filtering device and a second filtering device. The dust removal box is provided with a dust removal cavity, an air inlet and an air outlet. The dust removal cavity comprises a first filtering section and a second filtering section which are sequentially arranged in the airflow direction. The ventilation device is arranged at the air inlet and / or the air outlet; the first filter device is arranged on the first filter section and comprises a plurality of filter screens, and the screen surfaces of the filter screens intersect in the airflow direction in the dust removal cavity; the second filtering device is arranged on the second filtering section and comprises a plurality of filtering cylinders. According to the coal mine dust removal device, coal cinder, dust and other particles in coal mine air can be removed, the dust content of underground coal mine air is reduced, a good construction environment is provided for constructors, and potential safety hazards are reduced.

Description

Technical Field

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

[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. Underground coal mines are a type of coal mine that uses underground spaces such as shafts and chambers for coal mining. In the process of coal mining, coal rocks need to be crushed, and a large amount of coal slag and dust floating in the air poses a threat to the health of construction workers; at the same time, due to the relatively closed environment of underground coal mines, a large amount of floating dust is also explosive, posing a major safety hazard. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention proposes a coal mine dust removal device, which can remove coal slag, dust and other particles in the coal mine air, reduce the dust content of the air in the underground coal mine, provide a better construction environment for construction personnel, and reduce safety hazards.

[0005] The coal mine dust removal device of the embodiment of the present invention includes a dust removal box, a ventilation device, a first filter device and a second filter device; the dust removal box has a dust removal chamber, an air inlet and an air outlet, the dust removal chamber includes a first filter segment and a second filter segment arranged in sequence along the air flow direction; the ventilation device is arranged at the air inlet and / or the air outlet; the first filter device is arranged at the first filter segment, the first filter device includes a plurality of filter screens, the mesh surfaces of the filter screens intersect with the air flow direction in the dust removal chamber; the second filter device is arranged at the second filter segment, the second filter device includes a plurality of filter cartridges.

[0006] In some embodiments, the coal mine dust removal device further includes a first cleaning device, wherein the first cleaning device includes a cleaning brush that stops at the filter, and the cleaning brush is movably connected to the dust removal box.

[0007] In some embodiments, the coal mine dust removal device also includes a second cleaning device, the second cleaning device includes a cleaning frame and an air supply piece, the cleaning frame is movably connected to the dust removal box, the air supply piece is connected to the cleaning frame, the air supply piece is arranged on the side of the filter cartridge facing the air outlet, the outlet of the air supply piece is arranged toward the filter cartridge, and the air supply piece provides the filter cartridge with an airflow from the air outlet to the air inlet.

[0008] In some embodiments, the second cleaning device further includes a screw and a second drive motor for driving the screw to rotate, the screw is rotatably connected to the dust removal box, and the cleaning frame is threadedly connected to the screw.

[0009] In some embodiments, the coal mine dust removal device further includes a spray device, and the spray device includes a plurality of spray heads arranged toward the first filter section.

[0010] In some embodiments, the spray device further includes a water tank and a first pump body, wherein the first pump body is used to transport the water in the water tank to the spray head.

[0011] In some embodiments, the dust removal box has a collection chamber disposed at the lower side of the dust removal chamber, and a second pump body is disposed in the collection chamber, and the second pump body is used to transport the water in the collection chamber to the water tank;

[0012] A filter is provided in the water tank, and the filter divides the internal space of the water tank into a first chamber and a second chamber. The first chamber is provided at the lower side of the second chamber, the first pump body is connected to the first chamber, and the second pump body is connected to the second chamber.

[0013] In some embodiments, the coal mine dust removal device further includes a collecting device, wherein the collecting device includes a dirt collecting net and a dirt collecting trough disposed in the collecting chamber, and the dirt collecting net is inclined downward in a direction close to the dirt collecting trough.

[0014] In some embodiments, the collection device also includes a dirt collecting box and a conveying assembly. The dirt collecting box is arranged on the outside of the dust removal box, and the dirt collecting trough has a sewage outlet connected to the dirt collecting box. The conveying assembly includes a spiral blade, and the spiral blade is rotatably arranged on the sewage collecting trough to convey impurities in the sewage collecting trough to the sewage outlet.

[0015] In some embodiments, an impact assembly is provided on the lower side of the sewage collecting net, and the impact assembly includes a driving disk, an impact rod and a limiting rod. The driving disk is rotatably connected to the cavity wall of the collecting chamber, and a driving column is connected to the driving disk. One end of the limiting rod is hinged to the cavity wall of the collecting chamber, and the other end is connected to the limiting column. The impact rod has a driving groove and a limiting groove. The driving column is inserted into the driving groove, and the limiting column is inserted into the limiting groove and can slide relative to the limiting groove, so that the impact rod can be driven by the driving disk to rotate and impact the sewage collecting net.

[0016] The coal mine dust removal device of the embodiment of the present invention is suitable for removing dust from the air of underground coal mines and improving the air environment of coal mines. Specifically, the air with high dust content in underground coal mines is sucked into the dust removal chamber through the ventilation device, and the dusty air passes through the first filter section and the second filter section in sequence. The dusty air is initially filtered using multiple filter screens of the first filter section to filter out large particles of dust in the air, and the air is secondary filtered using multiple filter cartridges of the second filter section to filter out small particles of dust in the air; thereby, particles such as coal slag and dust in the air can be removed, the dust content of the air in underground coal mines can be reduced, a better construction environment can be provided for construction personnel, and safety hazards can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a coal mine dust removal device according to an embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall structure of a coal mine dust removal device from another angle according to an embodiment of the present invention.

[0019] Figure 3 It is a three-dimensional schematic diagram of a cutaway dust removal box of a coal mine dust removal device according to an embodiment of the present invention.

[0020] Figure 4 It is a schematic plan view of a cutaway dust removal box of a coal mine dust removal device according to an embodiment of the present invention.

[0021] Figure 5 It is a three-dimensional schematic diagram showing a dust removal box of a coal mine dust removal device according to an embodiment of the present invention cut away from another angle.

[0022] Figure 6 It is a schematic diagram of the overall structure of a coal mine dust removal device according to an embodiment of the present invention (for showing the water tank).

[0023] Figure 7 It is a schematic diagram of the internal structure of a water tank of a coal mine dust removal device according to an embodiment of the present invention.

[0024] Figure 8 The present invention is a schematic diagram of the internal structure of a dust collecting box of a coal mine dust removal device according to an embodiment of the present invention.

[0025] Fig. 9 It is a schematic structural diagram of a striking assembly of a coal mine dust removal device according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] 100. Coal mine dust removal device;

[0028] 1. Dust removal box; 11. Dust removal chamber; 12. Air inlet; 13. Air outlet; 14. Collection chamber; 15. Installation chamber; 16. Partition plate; 17. Water collection tank;

[0029] 2. Ventilation device; 21. Intake fan; 22. Exhaust fan;

[0030] 3. first filter device; 31. filter screen; 32. first fixing frame;

[0031] 4. second filter device; 41. filter cartridge; 42. mounting frame; 421. ventilation hole; 43. cylindrical frame; 44. second fixing frame;

[0032] 5. First cleaning device; 51. Cleaning brush; 52. First driving motor; 53. Driving rod;

[0033] 6. Second cleaning device; 61. Cleaning frame; 62. Air supply member; 63. Slide rail; 64. Screw rod; 65. Second driving motor;

[0034] 7. Spraying device; 71. Spray head; 72. Water distribution box; 73. Water tank; 731. Filter; 732. First chamber; 733. Second chamber; 74. First pump body; 75. Second pump body;

[0035] 8. Collection device; 81. Sewage collection net; 82. Sewage collection tank; 83. Sewage collection box; 831. Drain plate; 84. Spiral blade; 85. Conveying motor; 86. Conveying shaft; 87. Conveying pipe;

[0036] 9. Impact assembly; 91. Drive disk; 911. Drive column; 92. Impact rod; 921. Connecting part; 9211. Drive slot; 922. First impact part; 9221. First limiting slot; 923. Second impact part; 9231. Second limiting slot; 93. First limiting rod; 94. Second limiting rod; 95. Rotating seat; 96. Third drive motor; 97. Drive shaft. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0038] like Figures 1 to 3As shown, the coal mine dust removal device 100 of the embodiment of the present invention includes a dust removal box 1, a ventilation device 2, a first filter device 3 and a second filter device 4; the dust removal box 1 has a dust removal chamber 11, an air inlet 12 and an air outlet 13, and the dust removal chamber 11 includes a first filter section and a second filter section arranged in sequence along the air flow direction; the ventilation device 2 is arranged at the air inlet 12 and / or the air outlet 13; the first filter device 3 is arranged at the first filter section, and the first filter device 3 includes a plurality of filter screens 31, and the mesh surface of the filter screen 31 intersects with the air flow direction in the dust removal chamber 11; the second filter device 4 is arranged at the second filter section, and the second filter device 4 includes a plurality of filter cartridges 41.

[0039] The coal mine dust removal device 100 of the embodiment of the present invention is suitable for removing dust from the air of underground coal mines and improving the air environment of coal mines. Specifically, the air with high dust content in underground coal mines is sucked into the dust removal chamber 11 through the ventilation device 2, and the dusty air passes through the first filter section and the second filter section in sequence. The dusty air is initially filtered using multiple filter screens 31 of the first filter section to filter out large particles of dust in the air, and the air is secondary filtered using multiple filter cartridges 41 of the second filter section to filter out small particles of dust in the air; thereby, particles such as coal slag and dust in the air can be removed, the dust content of the air in underground coal mines can be reduced, a better construction environment can be provided for construction personnel, and safety hazards can be reduced.

[0040] The airflow direction refers to the flow direction of the dust-laden air from the air inlet 12 to the air outlet 13 .

[0041] Optionally, the number of the coal mine dust removal devices 100 in the embodiment of the present invention is multiple, and the multiple spray dust removal devices are respectively arranged in areas with high dust content in the underground coal mine, such as coal mining working faces, tunneling working faces, etc.

[0042] Alternatively, if Figure 1 and Figure 2 As shown, the ventilation device 2 includes an air intake fan 21 and an exhaust fan 22 . The air intake fan 21 is arranged at the air inlet 12 , and the exhaust fan 22 is arranged at the air outlet 13 .

[0043] Thereby, the air intake volume of the dust removal chamber 11 can be increased, thereby increasing the purification volume of the coal mine air by the coal mine dust removal device 100 and improving the dust removal efficiency.

[0044] As an example, Figures 1 to 3As shown, the dust removal box 1 is a rectangular box body, which has a dust removal chamber 11 and a collection chamber 14, and the first filter device 3 and the second filter device 4 are both arranged in the dust removal chamber 11; the air inlet 12 and the air outlet 13 are arranged on both sides of the dust removal chamber 11, the air intake fan 21 is arranged at the air intake 12, and the exhaust fan 22 is arranged at the air outlet 13. Under the action of the air intake fan 21 and the exhaust fan 22, the dust-containing air in the underground coal mine enters from the air inlet 12, and after the dust is removed by the first filter device 3 and the second filter device 4, it is discharged from the air outlet 13 to realize the dust removal of the air. The collection chamber 14 is arranged at the lower side of the dust removal chamber 11, and the coal slag dust filtered out by the first filter device 3 and the second filter device 4 falls downward and is collected in the collection chamber 14.

[0045] like Figure 3 and Figure 4 As shown, the first filter device 3 includes a plurality of filter screens 31 uniformly arranged in sequence along the air flow direction, and two adjacent filter screens 31 are arranged at intervals, and the upper side of the filter screen 31 is fixedly connected to the upper cavity wall of the dust removal chamber 11, and the lower side of the filter screen 31 is fixedly connected to a first fixing frame 32, and the two ends of the first fixing frame 32 are respectively fixedly connected to the two side cavity walls of the dust removal chamber 11, so that the fixed installation of multiple filter screens 31 can be realized; two adjacent first fixing frames 32 are arranged at intervals, so that the coal slag dust filtered out by the filter screen 31 can fall downward into the collection chamber 14 through the gap between the two adjacent first fixing frames 32.

[0046] like Figure 3 and Figure 5 As shown, the second filter device 4 includes a mounting frame 42, a plurality of cylindrical skeletons 43 and a plurality of filter cartridges 41. The mounting frame 42 is arranged near the air outlet 13. The mounting frame 42 is in the shape of a rectangular body, and the upper side is fixedly connected to the upper cavity wall of the dust removal chamber 11, and the lower side is fixedly connected to a second fixing frame 44. The two ends of the second fixing frame 44 are respectively fixedly connected to the two side cavity walls of the dust removal chamber 11, so that the mounting frame 42 can be fixedly installed. The outer contour of the cylindrical skeleton 43 is cylindrical, and its axial direction is consistent with the airflow direction of the dust-laden air (that is, the axial direction of the cylindrical skeleton is perpendicular to the mesh surface of the filter screen 31). The cylindrical skeleton 43 is arranged between the mounting frame 42 and the filter screen 31, and one end is fixedly connected to the mounting frame 42. The plurality of cylindrical skeletons 43 are arranged in multiple rows and columns. The mounting frame 42 has a plurality of ventilation holes 421 arranged along the airflow direction, and the ventilation holes 421 correspond to the cylindrical skeletons 43 one by one.

[0047] The filter cartridge 41 is an air dust filter cartridge in a cylindrical shape. The filter cartridge 41 corresponds to the cylindrical frame 43 one by one and is coaxially arranged. The filter cartridge 41 is installed in the cylindrical frame 43. The dust-containing air is filtered by multiple filter cartridges 41 and then flows to the air outlet 13 through the ventilation holes 421 on the mounting frame 42, thereby realizing secondary filtration of the dust-containing air.

[0048] In some embodiments, Figures 3 to 5As shown, the coal mine dust removal device 100 also includes a first cleaning device 5 , and the first cleaning device 5 includes a cleaning brush 51 that stops at the filter screen 31 , and the cleaning brush 51 is movably connected to the dust removal box 1 .

[0049] The cleaning brush 51 is moved relative to the filter screen 31 to clean the coal slag dust filtered out of the filter screen 31, thereby preventing the filter screen 31 from being blocked due to long-term use, thereby ensuring the filtering function of the filter screen 31.

[0050] Specifically, Figures 3 to 5 As shown, the cleaning brush 51 is rod-shaped, with a rotating portion in the middle thereof. The rotating portion is rotatable relative to the filter 31, and its rotating axis is perpendicular to the mesh surface of the filter 31. The cleaning brush 51 is disposed on a side of the filter 31 close to the air inlet 12, and the bristles of the cleaning brush 51 stop at the filter 31. The filter 31 can be cleaned by rotating the cleaning brush 51.

[0051] The first cleaning device 5 also includes a first drive motor 52 and a drive rod 53. The lower side of the first drive motor 52 is connected to a third fixing frame. The two ends of the third fixing frame are respectively fixedly connected to the two side walls of the dust removal chamber 11, thereby realizing the installation of the first drive motor 52. There are multiple cleaning brushes 51, which correspond to the filter screens 31 one by one. The drive rod 53 is rotatably arranged on the multiple filter screens 31. The multiple cleaning brushes 51 are all mounted on the drive rod 53 and rotate synchronously with the drive rod 53. One end of the drive rod 53 is connected to the output end of the first drive motor 52. The multiple cleaning brushes 51 can be driven to rotate synchronously by the first drive motor 52, thereby realizing the cleaning of the multiple filter screens 31, and the cleaned coal slag dust enters the collection chamber 14 at the lower side.

[0052] In some embodiments, Figure 3 and Figure 4 As shown, the coal mine dust removal device 100 also includes a second cleaning device 6, which includes a cleaning frame 61 and an air supply member 62. The cleaning frame 61 is movably connected to the dust removal box 1, and the air supply member 62 is connected to the cleaning frame 61. The air supply member 62 is arranged on the side of the filter cartridge 41 facing the air outlet 13, and the outlet of the air supply member 62 is arranged toward the filter cartridge 41. The air supply member 62 provides the filter cartridge 41 with an airflow directed from the air outlet 13 to the air inlet 12.

[0053] The air supply member 62 provides a high-pressure reverse airflow from the air outlet 13 to the air inlet 12 to the filter cartridge 41. The high-pressure reverse airflow passes through the filter cartridge 41 to clean the small particles of dust attached to the filter cartridge 41 and make them fall into the collection chamber 14, thereby preventing the filter cartridge 41 from being blocked and ensuring the filtering function of the filter cartridge 41.

[0054] In addition, the cleaning frame 61 can be used to drive the air supply member 62 to move, thereby cleaning different filter cartridges 41. Thus, multiple filter cartridges 41 can be cleaned in batches to ensure the normal use of the coal mine dust removal device 100.

[0055] Optionally, the air supply member 62 is an air pump or a fan.

[0056] Specifically, Figure 4 and Figure 5 As shown, the cleaning frame 61 is slidably installed in the dust removal box 1 in the vertical direction, the cleaning frame 61 is in the shape of an elongated strip and extends in the horizontal direction, and the size of the cleaning frame 61 in the horizontal direction is not less than the size of the mounting frame 42 in the horizontal direction; the number of air supply members 62 is multiple, specifically, the number of air supply members 62 is equal to the number of a row of ventilation holes 421 arranged in the horizontal direction, that is, the number of air supply members 62 is equal to the number of a row of filter cartridges 41 arranged in the horizontal direction; multiple air supply members 62 are installed on the cleaning frame 61 in the horizontal direction, and the positions of the multiple air supply members 62 correspond one-to-one to the positions of the multiple ventilation holes 421. By adjusting the position of the cleaning frame 61 in the vertical direction, the multiple air supply members 62 can be aligned one-to-one with the multiple ventilation holes 421 in the same row. When the air supply members 62 are started, the air supply members 62 can provide reverse airflow to the corresponding filter cartridges 41 through the ventilation holes 421, thereby cleaning the filter cartridges 41.

[0057] like Figure 5 As shown, a slide rail 63 is respectively provided on the two side cavity walls arranged opposite to each other in the dust removal cavity 11, and the two sides of the cleaning frame 61 are respectively slidably matched with the slide rail 63, which can improve the stability of the cleaning frame 61 and the air supply member 62 moving in the vertical direction.

[0058] In some embodiments, Figure 4 and Figure 5 As shown, the second cleaning device 6 also includes a screw rod 64 and a second drive motor 65 for driving the screw rod 64 to rotate. The screw rod 64 is rotatably connected to the dust removal box 1, and the cleaning frame 61 is threadedly connected to the screw rod 64.

[0059] By starting the second drive motor 65, the screw rod 64 can be controlled to rotate forward or reverse, thereby driving the cleaning frame 61 to move upward or downward in the vertical direction to clean the filter cartridges 41 at different positions. When cleaning multiple filter cartridges 41 in a row, the remaining filter cartridges 41 can maintain normal ventilation, thereby ensuring the normal operation of the coal mine dust removal device 100.

[0060] As an example, the screw rod 64 vertically passes through the middle position of the cleaning frame 61 and is threadedly connected to the cleaning frame 61, and the two ends of the screw rod 64 are respectively rotatably connected to the upper and lower cavity walls of the dust removal chamber 11; the second drive motor 65 is arranged at the top of the outer side of the dust removal box 1, and the upper end of the screw rod 64 is connected to the output end of the second drive motor 65, and the screw rod 64 can be driven to rotate by the second drive motor 65.

[0061] In some embodiments, Figure 3 and Figure 4 As shown, the coal mine dust removal device 100 further includes a spray device 7, and the spray device 7 includes a plurality of spray heads 71 ​​arranged toward the first filtering section.

[0062] Water mist is sprayed into the dust removal chamber 11 through the spray head 71, and the coal slag dust floating in the air combines with water molecules and sinks downward into the collecting chamber 14, and the air after spray dust removal is discharged from the air outlet 13; thereby, the dust removal effect on dust-containing air can be further improved, the dust content of the air in underground coal mines can be reduced, a better construction environment can be provided for construction personnel, and safety hazards can be reduced.

[0063] As an example, Figure 3 and Figure 4 As shown, the dust removal box 1 also has an installation cavity 15, which is arranged on the upper side of the dust removal cavity 11, and a partition 16 is provided between the two, so that the installation cavity 15 and the dust removal cavity 11 are not connected to each other; a water separation box 72 for accommodating water is provided in the installation cavity 15, and the water separation box 72 is connected to the upper plate surface of the partition 16; there are multiple spray heads 71, and the multiple spray heads 71 ​​are divided into multiple groups, one filter screen 31 corresponds to a group of spray heads 71, and the multiple spray heads 71 ​​in the same group are horizontally arranged along a direction perpendicular to the airflow; the spray head 71 is fixedly connected to the partition 16, and the spray head 71 passes through the partition 16 to be connected to the water separation box 72; water can be supplied to multiple groups of spray heads 71 ​​at the same time through the water separation box 72, and then water mist is sprayed into the dust removal cavity 11 through the multiple spray heads 71, thereby improving the dust removal effect on the coal mine air.

[0064] In some embodiments, Figures 5 to 7 As shown, the spray device 7 further includes a water tank 73 and a first pump body 74 . The first pump body 74 is used to transport the water in the water tank 73 to the spray head 71 .

[0065] The water tank 73 can store water, and when there is a temporary shortage of water resources in the coal mine, the normal use of the coal mine dust removal device 100 can be guaranteed.

[0066] Specifically, the first pump body 74 is arranged in the water tank 73, the inlet of the first pump body 74 is connected to the internal cavity of the water tank 73, the outlet of the first pump body 74 passes through the box wall of the water tank 73, and is connected to the water diversion box 72 through a pipe; the water stored in the water tank 73 can be transported to the water diversion box 72 through the first pump body 74, and then sprayed to the dust removal chamber 11 through multiple spray heads 71.

[0067] In some embodiments, Figures 5 to 7 As shown, the dust removal box 1 has a collecting chamber 14 arranged at the lower side of the dust removal chamber 11, and a second pump body 75 is arranged in the collecting chamber 14, and the second pump body 75 is used to transport the water in the collecting chamber 14 to the water tank 73; a filter 731 is arranged in the water tank 73, and the filter 731 divides the internal space of the water tank 73 into a first chamber 732 and a second chamber 733, and the first chamber 732 is arranged at the lower side of the second chamber 733, the first pump body 74 is connected to the first chamber 732, and the second pump body 75 is connected to the second chamber 733.

[0068] The water sprayed into the dust removal chamber 11 by multiple spray heads 71 ​​combines with the coal slag dust and then falls into the collecting chamber 14 and gathers in the collecting chamber 14. The sewage in the collecting chamber 14 can be transported to the second chamber 733 of the water tank 73 through the second pump body 75, and becomes clean water after being filtered by the filter 731 and enters the first chamber 732 for storage, thereby realizing the recycling and reuse of water resources.

[0069] In some embodiments, Figure 5 As shown, the coal mine dust removal device 100 also includes a collecting device 8, which includes a dirt collecting net 81 and a dirt collecting trough 82 arranged in the collecting chamber 14, and the dirt collecting net 81 is inclined downward in a direction close to the dirt collecting trough 82.

[0070] The water and the coal slag dust in the dust removal chamber 11 are mixed and fall to the dirt collection net 81, and the water passes through the dirt collection net 81 and enters the bottom of the collection chamber 14, while the coal slag dust is collected on the upper side of the dirt collection net 81, thereby achieving the separation of the water and dust impurities, so as to collect the coal slag dust, and at the same time, it is more conducive to the recycling and reuse of the water. In addition, since the dirt collection net 81 is inclined toward the direction of the dirt collection tank 82, the dust impurities on the dirt collection net 81 can be collected downward along the inclined mesh surface of the dirt collection net 81 into the dirt collection tank 82, so as to further process the filtered coal slag, dust, etc.

[0071] As an example, Figure 5 and Figure 6As shown, the sewage collecting trough 82 is in the shape of an elongated strip and is consistent with the airflow direction along its length direction. The bottom wall of the sewage collecting trough 82 is in contact with the bottom cavity wall of the collecting chamber 14 and is fixedly connected to the bottom cavity wall of the collecting chamber 14. There are two sewage collecting nets 81, and the two sewage collecting nets 81 are arranged in a "V" shape. The sewage collecting trough 82 is arranged between the two sewage collecting nets 81. One side of the sewage collecting net 81 is fixed to the side cavity wall of the collecting chamber 14, and the other side is arranged downwardly inclined in the direction close to the sewage collecting trough 82 and is fixedly connected to the sewage collecting trough 82. The large particles of coal slag dust filtered out by the filter screen 31 and the small particles of coal slag dust filtered out by the filter cartridge 41 all fall downward into the sewage collecting net 81 and the sewage collecting trough 82, and are finally collected in the sewage collecting trough 82.

[0072] The lower side of the sewage collecting net 81 forms a water collecting tank 17, and the second pump body 75 is arranged in the water collecting tank 17. The sewage is initially filtered by the sewage collecting net 81 and then collected in the water collecting tank 17. The second pump body 75 can transport the sewage in the water collecting tank 17 to the water tank 73 to realize the recycling of water.

[0073] In some embodiments, Figure 5 and Figure 6 As shown, the collecting device 8 also includes a dirt collecting box 83 and a conveying assembly. The dirt collecting box 83 is arranged on the outside of the dust removal box 1. The dirt collecting trough 82 has a sewage outlet connected to the dirt collecting box 83. The conveying assembly includes a spiral blade 84. The spiral blade 84 is rotatably arranged on the dirt collecting trough 82 to convey the impurities in the dirt collecting trough 82 to the sewage outlet.

[0074] Through the above arrangement, the conveying assembly can convey the coal slag dust in the sump 82 to the sump box 83 located outside the dust removal box 1, so that the operator can regularly clean the coal slag filtered out by the dust removal device.

[0075] As an example, Figure 5 and Figure 6 As shown, the conveying assembly includes a conveying motor 85, a conveying shaft 86 and a spiral blade 84. The conveying shaft 86 extends along the length direction of the sewage collecting tank 82, and both ends are rotatably connected to the cavity wall of the collection cavity 14, and the spiral blade 84 is spirally arranged along the axial direction of the conveying shaft 86; Figure 1 As shown, the conveying motor 85 is arranged on the outside of the dust removal box 1 and is fixedly connected to the dust removal chamber 11. The output end of the conveying motor 85 is connected to the conveying shaft 86. Starting the conveying motor 85 can drive the conveying shaft 86 to rotate, and then drive the spiral blade 84 to rotate, and convey the coal slag dust collected in the sewage collecting tank 82 to the outside through the sewage outlet.

[0076] The conveying assembly also includes a conveying pipe 87, through which the sewage outlet is connected to the upper side of the sewage collecting box 83. A conveying mechanism (the conveying mechanism is a chain conveying mechanism or a screw conveying mechanism) is provided in the conveying pipe 87, through which the coal slag dust discharged from the sewage outlet can be transported to the sewage collecting box 83.

[0077] like Figure 8 As shown, a drain plate 831 is provided in the dirt collecting box 83, and the coal slag dust enters from the upper side of the dirt collecting box 83, and the dust and water are separated by the drain plate 831, so that the operator can further process the coal slag dust.

[0078] In some embodiments, Figure 5 and Fig. 9 As shown, an impact assembly 9 is provided on the lower side of the sewage collecting net 81, and the impact assembly 9 includes a driving disk 91, an impact rod 92 and a limiting rod. The driving disk 91 is rotatably connected to the cavity wall of the collecting chamber 14, and a driving column 911 is connected to the driving disk 91. The impact rod 92 has a driving groove 9211 and a limiting groove. One end of the limiting rod is hinged to the cavity wall of the collecting chamber 14, and the other end is connected to the limiting column. The driving column 911 is penetrated into the driving groove 9211 and can slide relative to the driving groove 9211. The limiting column is penetrated into the limiting groove and can slide relative to the limiting groove, so that the driving disk 91 can rotate and drive the impact rod 92 to impact the sewage collecting net 81.

[0079] The impact rod 92 is used to repeatedly impact the dirt collecting net 81, causing the dirt collecting net 81 to vibrate, thereby causing the coal slag dust on the dirt collecting net 81 to move along the inclined direction of the dirt collecting net 81 and gather in the dirt collecting trough 82, so as to clean the dust filtered out by the filter screen 31 and the filter cartridge 41, thereby ensuring the continuous use of the coal mine dust removal device 100.

[0080] Specifically, Figure 5 and Fig. 9 As shown, there are two impact assemblies 9 , which are respectively arranged at the lower sides of the two sewage collecting nets 81 and are respectively used to impact the two sewage collecting nets 81 .

[0081] The impact assembly 9 includes a plurality of impact groups, and the plurality of impact groups are evenly distributed along the length direction of the sewage collecting trough 82. Each impact group includes an impact rod 92, that is, the plurality of impact rods 92 are evenly distributed along the length direction of the sewage collecting trough 82, which can implement uniform impact on the sewage collecting net 81, so that the sewage collecting net 81 is evenly stressed, and the sewage collecting net 81 vibrates more steadily, which is more conducive to the dust moving downward along the mesh surface of the sewage collecting net 81.

[0082] The impact group includes the above-mentioned driving disk 91, the impact rod 92 and two limit rods. The driving column 911 is fixedly connected to the driving disk 91. A driving shaft 97 is passed through the driving disk 91. The driving disks 91 of multiple impact groups share a driving shaft 97. Both ends of the driving shaft 97 are rotatably connected to the cavity wall of the collection chamber 14 respectively. One end of the driving shaft 97 passes through the cavity wall of the collection chamber 14 and extends to the outside, and is connected to a third driving motor 96. Figure 4As shown, the third driving motor 96 is connected to the outer wall of the dust removal box 1; the third driving motor 96 can drive the driving shaft 97 to rotate, thereby driving the multiple driving disks 91 to rotate.

[0083] The impact rod 92 extends obliquely along the inclination direction of the sewage collecting net 81, and the impact rod 92 includes an integrally arranged connecting portion 921, a first impact portion 922 and a second impact portion 923. The connecting portion 921 is formed in the middle area of ​​the impact rod 92, and the connecting portion 921 is semicircular. The first impact portion 922 and the second impact portion 923 are respectively formed at both ends of the impact rod 92. The second impact portion 923 is closer to the sewage collecting tank 82 than the first impact portion 922, and the second impact portion 923 is lower than the first impact portion 922; the first impact portion 922 and the second impact portion 923 both have the above-mentioned limiting grooves, and the limiting grooves are long holes. The limiting groove of the first impact portion 922 is the first limiting groove 9221, and the limiting groove of the second impact portion 923 is the second limiting groove 9231. The two limiting rods are respectively connected to the first impact portion 922 and the second impact portion 923 through the two limiting grooves.

[0084] Specifically, the two limiting rods are respectively the first limiting rod 93 and the second limiting rod 94. The limiting column connected to the first limiting rod 93 is the first limiting column (the first limiting column is not shown in the figure), and the limiting column connected to the second limiting rod 94 is the second limiting column (the second limiting column is not shown in the figure). One end of the first limiting rod 93 is rotatably connected to the cavity wall of the collection chamber 14 through a rotating seat 95, and the other end is fixedly connected to the first limiting column. The first limiting column is inserted into the first limiting groove 9221, and the first limiting column can slide along the length direction of the first limiting groove 9221 and can rotate relative to the first limiting groove 9221. Similarly, one end of the second limiting rod 94 is rotatably connected to the outer wall of the sewage collection tank 82 through a rotating seat 95, and the other end is fixedly connected to the second limiting column. The second limiting column is inserted into the second limiting groove 9231, and the second limiting column can slide and rotate relative to the second limiting groove 9231.

[0085] The connecting portion 921 has the above-mentioned driving groove 9211, the shape of which matches the shape of the connecting portion 921, and the driving column 911 is penetrated through the driving groove 9211 and stops at the groove wall of the driving groove 9211; when the driving column 911 rotates forwardly with the driving disk 91, the driving column 911 applies force to the groove wall of the driving groove 9211, thereby driving the first impact part 922 to move upward and the second impact part 923 to move downward, and the first impact part 922 can perform a knocking action on the dirt collecting net 81; or, when the driving column 911 rotates reversely with the driving disk 91, the driving column 911 applies force to the driving groove 9211, which can drive the first impact part 922 to move downward and the second impact part 923 to move upward, and the second impact part 923 can perform a knocking action on the dirt collecting net 81, thereby realizing the vibration of the dirt collecting net 81, so that the coal slag dust is collected in the dirt collecting groove 82, so as to clean the dust filtered out by the coal mine dust removal device 100.

[0086] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A coal mine dust removal device (100), characterized in that: include: A dust removal box (1), the dust removal box (1) comprising a dust removal chamber (11), an air inlet (12) and an air outlet (13), the dust removal chamber (11) comprising a first filter section and a second filter section arranged in sequence along an air flow direction; A ventilation device (2), wherein the ventilation device (2) is arranged at the air inlet (12) and / or the air outlet (13); A first filter device (3), the first filter device (3) being arranged in the first filter section, the first filter device (3) comprising a plurality of filter screens (31), the mesh surfaces of the filter screens (31) intersecting with the airflow direction in the dust removal chamber (11); A second filtering device (4), wherein the second filtering device (4) is arranged in the second filtering section, and the second filtering device (4) comprises a plurality of filter cartridges (41).

2. The coal mine dust removal device (100) according to claim 1, characterized in that: It also comprises a first cleaning device (5), the first cleaning device (5) comprising a cleaning brush (51) abutting against the filter screen (31), the cleaning brush (51) being movably connected to the dust removal box (1).

3. The coal mine dust removal device (100) according to claim 2, characterized in that: The invention also comprises a second cleaning device (6), the second cleaning device (6) comprising a cleaning frame (61) and an air supply member (62), the cleaning frame (61) being movably connected to the dust removal box (1), the air supply member (62) being connected to the cleaning frame (61), the air supply member (62) being arranged on a side of the filter cartridge (41) facing the air outlet (13), the outlet of the air supply member (62) being arranged facing the filter cartridge (41), and the air supply member (62) providing the filter cartridge (41) with an airflow directed from the air outlet (13) to the air inlet (12).

4. The coal mine dust removal device (100) according to claim 3, characterized in that: The second cleaning device (6) further comprises a screw rod (64) and a second drive motor (65) for driving the screw rod (64) to rotate, the screw rod (64) being rotatably connected to the dust removal box (1), and the cleaning frame (61) being threadedly connected to the screw rod (64).

5. The coal mine dust removal device (100) according to any one of claims 1 to 4, characterized in that: It also comprises a spray device (7), wherein the spray device (7) comprises a plurality of spray heads (71) arranged toward the first filter section.

6. The coal mine dust removal device (100) according to claim 5, characterized in that: The spray device (7) further comprises a water tank (73) and a first pump body (74), wherein the first pump body (74) is used to transport the water in the water tank (73) to the spray head (71).

7. The coal mine dust removal device (100) according to claim 6, characterized in that: The dust removal box (1) has a collecting chamber (14) arranged at the lower side of the dust removal chamber (11), and a second pump body (75) is arranged in the collecting chamber (14), and the second pump body (75) is used to transport the water in the collecting chamber (14) to the water tank (73); A filter (731) is provided in the water tank (73), and the filter (731) divides the internal space of the water tank (73) into a first chamber (732) and a second chamber (733). The first chamber (732) is provided at the lower side of the second chamber (733), the first pump body (74) is connected to the first chamber (732), and the second pump body (75) is connected to the second chamber (733).

8. The coal mine dust removal device (100) according to claim 7, characterized in that: It also comprises a collecting device (8), the collecting device (8) comprising a dirt collecting net (81) and a dirt collecting trough (82) arranged in the collecting chamber (14), the dirt collecting net (81) being inclined downward in a direction close to the dirt collecting trough (82).

9. The coal mine dust removal device (100) according to claim 8, characterized in that: The collecting device (8) further comprises a dirt collecting box (83) and a conveying assembly, wherein the dirt collecting box (83) is arranged on the outside of the dust removal box (1), the dirt collecting trough (82) has a sewage discharge port connected to the dirt collecting box (83), and the conveying assembly comprises a spiral blade (84), wherein the spiral blade (84) is rotatably arranged on the dirt collecting trough (82) to convey impurities in the dirt collecting trough (82) to the sewage discharge port.

10. The coal mine dust removal device (100) according to claim 8, characterized in that: An impact assembly (9) is provided at the lower side of the waste collecting net (81), the impact assembly (9) comprising a driving disk (91), an impact rod (92) and a limiting rod, the driving disk (91) being rotatably connected to the cavity wall of the collecting cavity (14), the driving disk (91) being connected to a driving column (911), one end of the limiting rod being hinged to the cavity wall of the collecting cavity (14), and the other end being connected to the limiting column, the impact rod (92) having a driving groove (9211) and a limiting groove, the driving column (911) being inserted into the driving groove (9211), the limiting column being inserted into the limiting groove and being slidable relative to the limiting groove, so as to drive the impact rod (92) to impact the waste collecting net (81) by rotation through the driving disk (91).

Images