Dust collecting device for coal mining construction

Abstract

The invention discloses a dust collecting device for coal mining construction, and relates to the technical field of dust fall in coal mining construction, the dust collecting device comprises a shell, the middle of the bottom of the shell is fixedly connected with a motor, the inner wall, close to an air inlet pipe, of the shell is provided with a round hole, and the inner wall of the shell is fixedly connected with a limiting ring; the inner wall, close to the circular hole, of the limiting ring is fixedly connected with a supporting block, and the inner wall of the shell is fixedly connected with an elastic plate. According to the dust collecting device for coal mining construction, airflow is directly blocked through the limiting ring, part of impact force of the airflow to the interior of equipment is shared, direct contact between the airflow and a main body structure of the equipment is reduced, the service life of the equipment is prolonged, and meanwhile large-particle dust in the airflow is prevented from falling off under the action of gravity and inertia. And the dust slides to the bottom of the equipment along the surface of the limiting ring and is combined with water in the shell, so that primary dust separation is realized.

Description

Technical Field

[0001] The invention relates to the technical field of dust reduction in coal mining construction, in particular to a dust collecting device for coal mining construction. Background Art

[0002] The energy on the earth is divided into primary energy, which refers to the energy that already exists in nature: coal, oil, natural gas, hydropower, etc.; secondary energy refers to the energy products processed and converted from primary energy: electricity, gas, steam and various petroleum products, etc.; coal is a major fixed fuel, which is mainly obtained through mining in coal mines. During the coal mining construction process, a large amount of dust is often generated in the air at the construction site due to construction. These dusts not only cause harm to the health of on-site workers, but also pose safety hazards such as explosions. Therefore, dust reduction measures are needed for the air at the construction site.

[0003] Existing dust collection devices generally reduce dust by spraying water, which will greatly increase the dust humidity on the working surface, causing the coal dust to become wet and sticky. This will not only affect the subsequent processing and transportation of coal, but may also make workers feel uncomfortable, affecting work efficiency and comfort. At the same time, the settled dust cannot be collected and processed, causing the settled dust to fly into the air again after drying, and there is a problem of wasting the relatively scarce water resources at the coal mining site. Summary of the invention

[0004] To achieve the above purpose, the present invention is implemented through the following technical solutions: A dust collection device for coal mining construction, comprising a shell, a fan is fixedly connected to the top of the shell, a fixing ring is fixedly connected to the outside of the shell, an air intake pipe is fixedly connected to the outside of the fixing ring, a motor is fixedly connected to the middle of the bottom of the shell, and a support is fixedly connected to the bottom edge of the shell;

[0005] The filter assembly is fixedly installed inside the housing, the filter assembly is located at one end close to the fan, and the filter assembly is located in the middle of the housing;

[0006] The shell includes an outer shell, the middle of the bottom of the outer shell is fixedly connected to the motor, a circular hole is opened on the inner wall of the outer shell near the air inlet pipe, and a limiting ring is fixedly connected to the inner wall of the outer shell. The water level inside the outer shell is higher than the lowest point of the limiting ring away from the end of the outer shell, and the outside air enters through the air inlet pipe and the circular hole. Under the push of the airflow, the spring plate is forced to move in the direction away from the circular hole. At this time, the spring plate is away from the support block, so that the airflow enters the interior of the outer shell through the gap between the support block and the spring plate. Then the airflow contacts the limiting ring, and then the limiting ring directly blocks the airflow, shares part of the impact force of the airflow on the inside of the equipment, reduces the direct contact between the airflow and the main structure of the equipment, thereby protecting the equipment and extending the service life of the equipment. At the same time, large particles of dust in the airflow slide to the bottom of the equipment along the surface of the limiting ring under the action of gravity and inertia, and combine with the water inside the outer shell to achieve preliminary dust separation and reduce the amount of dust entering subsequent processing links. The amount of large-particle dust is reduced, and the airflow enters the dust removal equipment more evenly to avoid airflow deviation, eddy current and other phenomena. The limiting ring is set in an L shape, and the inner wall of the limiting ring close to the circular hole is fixedly connected with a support block, and the inner wall of the outer shell is fixedly connected with a spring plate. By setting the spring plate and utilizing the elastic effect of the spring plate, the airflow is made to produce high-frequency vibration and disturbance, thereby increasing the probability of collision between small and medium-sized particles of dust, and promoting their agglomeration into larger particles, so that they can be more easily captured and settled by water later. At the same time, when the water inside the equipment tends to flow to the air intake pipe due to airflow fluctuations, pressure changes and other reasons, the spring plate can directly block the flow of water to prevent water from mixing with the dust being transported, thereby causing the dust to agglomerate. The agglomerated dust not only affects the airflow delivery, but also may block the air intake pipe. By reducing the possibility of water entering the air intake pipe, it is further ensured that the dust can smoothly enter the dust removal equipment for treatment, ensure the normal operation of the dust removal system, and improve the dust removal efficiency.

[0007] Preferably, the middle part of the bottom of the shell near the motor is convex, the inner wall of the shell is fixedly connected with an intermediate ring, the bottom of the intermediate ring is fixedly connected with a circular ring, the end of the circular ring away from the intermediate ring is fixedly connected to the middle part of the inner wall of the shell, and a filter hole is opened on the outer side of the circular ring, and the water after spraying flows downward along the outer side of the intermediate ring and the inner wall of the shell, and flows back into the water at the bottom to avoid dust residue on the outer wall of the intermediate ring and the inner wall of the shell. At the same time, the circular ring separates the water inside the shell to prevent impurities in the water entering the circular tube, which causes the spray pipe to be blocked. The inner wall of the shell is fixedly connected with a spray pipe, and the airflow enters the interior of the shell through the air inlet pipe and the circular hole, and then the gas flows upward through the gap between the limit ring and the intermediate ring. At the same time, the water inside the shell enters the spray pipe through the circular tube. Then it is sprayed downward from the spray port on the spray pipe. At this time, the water droplets sprayed downward form a counter-flow with the upward dust-laden airflow. In this process, the water droplets are fully in contact with the dust in the airflow, and the dust particles are adsorbed and wrapped by the water droplets to form larger particles, which quickly settle under the action of gravity, thereby achieving efficient dust removal. The spray pipe is located near the inner wall of the fan, and the spray pipe is located at the gap between the outer shell and the middle ring. The middle part of the inner wall of the outer shell is fixedly connected with an middle pipe, and the filter assembly is located inside the middle pipe. A through hole is opened at one end of the middle ring close to the outer shell, and the two sides of the middle ring are connected through the through hole. The airflow enters the space between the outer shell and the limit ring through the air inlet pipe and the circular hole, and then enters the gap between the limit ring and the middle ring through the water at the bottom of the outer shell, so that the gas passes through the middle The through hole on the top of the ring enters the gap between the middle ring and the middle tube, so that the gas after dust removal enters the middle tube. At the same time, the fan works, so that the gas is discharged from the fan through the filter assembly. The gas enters the water. The larger dust particles will sink directly to the bottom of the water due to inertia, while some smaller dust particles will be adsorbed or dissolved by water during the contact with water, thus achieving preliminary gas-dust separation. The gas passing through the water body is then sprayed, thereby further processing the finer dust particles. The combination of the two realizes multi-stage capture of dust of different particle sizes, greatly improving the dust removal efficiency. At the same time, since the dust-containing gas usually contains harmful gases such as sulfur dioxide and hydrogen sulfide, when the gas directly enters the water, some of the harmful gases can be dissolved in the water and removed. In addition, in the subsequent spraying stage, the remaining harmful gases can be further absorbed, so as to achieve the simultaneous removal of dust and harmful gases, and make the exhausted gas cleaner. An annular groove is provided on the inner wall of the middle tube, and a circular tube is provided on the inner wall of the middle ring. One end of the circular tube is fixedly connected to the spray pipe, and the circular tube passes through the middle ring and extends to the inside of the circular ring. The middle ring is located between the middle tube and the outer shell. A partition is fixedly connected to the inner wall of the outer shell. By setting the partition, the dust-laden airflow can be evenly distributed in the spraying area to avoid the situation where the local airflow is too strong or too weak. In this way, the spray water can be more evenly contacted with the dust in the airflow, so as to ensure the consistency of the dust removal effect and reduce the dust removal dead corners caused by uneven airflow. The partition is located at the interval between the middle ring and the outer shell. There are multiple partitions.A plurality of partitions divide the space between the intermediate ring and the outer shell into a plurality of spaces.

[0008] Preferably, the filter assembly includes a rotating shaft, which is fixedly connected to the output end of the motor, and a connecting frame is fixedly connected to the outer side of the rotating shaft, and the connecting frame is located inside the middle ring. An extension rod is fixedly connected to the top of the connecting frame. There are multiple extension rods, and the multiple extension rods are evenly distributed with the rotating shaft as the center, and the extension rod is located at the interval between the middle tube and the middle ring. A cleaning ring is fixedly connected to the outer side of the extension rod. The motor is connected to an external power supply to work, and the motor drives the rotating shaft to rotate. The rotating shaft drives the extension rod to rotate through the connecting frame, and the cleaning ring on the outer side of the extension rod cleans the inner wall of the middle ring and the outer wall of the middle tube. Then the airflow passes through the filter assembly, and a desiccant is placed between the circular plate and the bottom plate, so as to dehumidify the gas, reduce corrosion to the fan at the discharge position, and improve the service life of the equipment. During operation, the rotating shaft drives the circular plate and the bottom plate to rotate, and the inclined plate and the square plate are staggered up and down, so that when the circular plate and the bottom plate rotate, the dehumidifier flips up and down under the push of the inclined plate and the square plate, so that it can fully contact with the humid gas, allowing more desiccant surfaces to participate in the moisture absorption process. In the invention, the moisture in the gas can be absorbed more quickly and effectively, and the dehumidification efficiency can be improved. At the same time, the uniform turning can make each part of the desiccant absorb moisture uniformly, so as to avoid premature failure due to local excessive moisture absorption, thereby extending the overall service life of the desiccant. A circular plate is slidably connected to the outer side of the rotating shaft, a positioning ring is fixedly connected to the inner wall of the annular groove, an extension tube is fixedly connected to the side of the circular plate close to the rotating shaft, a cylinder is slidably connected to the end of the extension tube away from the circular plate, a spring is fixedly connected to the side of the circular plate close to the extension tube, the cylinder is magnetic, and the end of the spring away from the circular plate is fixedly connected to the connecting ring, the outer side of the connecting ring is fixedly connected to the connecting tube, and the end of the connecting tube away from the circular plate is fixedly connected to the bottom plate, the circular plate and the bottom plate are clamped between the cylinder and the clamping groove, so as to facilitate the replacement of the desiccant at the interval between the circular plate and the bottom plate, the positioning ring is located at the interval between the circular plate and the bottom plate, the connecting ring is sleeved on the outer side of the extension tube, a clamping groove is provided on the inner wall of the connecting tube, the cylinder is located inside the clamping groove, an inclined plate is fixedly connected to the side of the positioning ring close to the bottom plate, and a square plate is fixedly connected to the side of the positioning ring close to the circular plate.

[0009] The present invention provides a dust collection device for coal mining construction. It has the following beneficial effects:

[0010] 1. The dust collection device for coal mining construction directly blocks the airflow through the limit ring, shares part of the impact force of the airflow on the inside of the equipment, reduces the direct contact between the airflow and the main structure of the equipment, thereby protecting the equipment and extending the service life of the equipment. At the same time, large particles of dust in the airflow slide along the surface of the limit ring to the bottom of the equipment under the action of gravity and inertia, and combine with the water inside the outer shell to achieve preliminary dust separation.

[0011] 2. The dust collection device used in coal mining construction enters the water through gas. Larger dust particles will sink directly to the bottom of the water due to inertia, while some smaller dust particles will be adsorbed or dissolved by water during contact with water, thus initially achieving gas-dust separation. The gas passing through the water body is then sprayed, thereby further processing the finer dust particles. The combination of the two realizes multi-stage capture of dust of different particle sizes, greatly improving the dust removal efficiency.

[0012] 3. The dust collection device used in coal mining construction can directly block the flow of water through the spring plate to prevent the water from mixing with the dust being transported, thereby causing the dust to clump. The agglomerated dust will not only affect the air flow, but may also block the air intake pipe, thereby reducing the possibility of water entering the air intake pipe.

[0013] 4. The dust collection device used in coal mining construction forms a counter-flow through the downwardly sprayed water droplets and the upward dust-laden airflow. In this process, the water droplets are in full contact with the dust in the airflow, and the dust particles are adsorbed and wrapped by the water droplets to form larger particles, which quickly settle under the action of gravity, thereby achieving efficient dust removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a structural schematic diagram of a bottom view of the present invention;

[0016] Figure 3 It is a structural schematic diagram of a partial cross-sectional view of the present invention;

[0017] Figure 4 It is a structural schematic diagram of a cross-sectional view of the present invention;

[0018] Figure 5 It is a structural schematic diagram of a cross-sectional view of a shell of the present invention;

[0019] Figure 6 For the present invention Figure 5 The structural diagram of the enlarged view at A in the middle;

[0020] Figure 7 It is a structural schematic diagram of the shell disassembly diagram of the present invention;

[0021] Figure 8 It is a schematic diagram of the structure of the filter assembly of the present invention;

[0022] Fig. 9 It is a schematic diagram of the structure of a part of the filter assembly of the present invention;

[0023] Fig.10 It is a structural schematic diagram of a partial cross-sectional view of the filter assembly of the present invention.

[0024] In the figure: 1, shell; 11, shell; 12, round hole; 13, limit ring; 14, spring plate; 15, support block; 16, intermediate ring; 17, round ring; 18, round tube; 19, spray pipe; 110, through hole; 111, intermediate tube; 112, partition; 113, ring groove; 2, fixing ring; 3, support; 4, fan; 5, air inlet pipe; 6, motor; 7, filter assembly; 71, rotating shaft; 72, connecting frame; 73, extension rod; 74, cleaning ring; 75, round plate; 76, positioning ring; 77, bottom plate; 78, extension tube; 79, cylinder; 710, connecting ring; 711, spring; 712, inclined plate; 713, square plate; 714, connecting tube. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The first embodiment, as Figures 1 to 6 As shown, the present invention provides a technical solution: a dust collection device for coal mining construction, comprising a shell 1, a fan 4 is fixedly connected to the top of the shell 1, a fixing ring 2 is fixedly connected to the outside of the shell 1, an air intake pipe 5 is fixedly connected to the outside of the fixing ring 2, a motor 6 is fixedly connected to the middle of the bottom of the shell 1, and a support 3 is fixedly connected to the bottom edge of the shell 1;

[0027] The filter assembly 7 is fixedly installed inside the housing 1, the filter assembly 7 is located at one end close to the fan 4, and the filter assembly 7 is located in the middle of the housing 1;

[0028] Among them, the shell 1 includes an outer shell 11, and the middle of the bottom of the outer shell 11 is fixedly connected to the motor 6. A circular hole 12 is opened on the inner wall of the outer shell 11 near the air inlet pipe 5. A limiting ring 13 is fixedly connected to the inner wall of the outer shell 11. The water level inside the outer shell 11 is higher than the lowest point of the limiting ring 13 away from the end of the outer shell 11. The outside air enters through the air inlet pipe 5 and the circular hole 12. Under the push of the airflow, the spring plate 14 is forced to move in the direction away from the circular hole 12. At this time, the spring plate 14 is away from the support block 15, so that the airflow enters the interior of the outer shell 11 through the gap between the support block 15 and the spring plate 14. Then the airflow contacts the limiting ring 13, and then the limiting ring 13 plays a direct blocking role on the airflow, sharing part of the impact force of the airflow on the inside of the equipment, reducing the direct contact between the airflow and the main structure of the equipment, thereby protecting the equipment and extending the service life of the equipment. At the same time, large particles of dust in the airflow slide to the bottom of the equipment along the surface of the limiting ring 13 under the action of gravity and inertia, and combine with the water inside the outer shell 11 to achieve preliminary dust removal. Separation, reduce the amount of large dust particles entering the subsequent processing link, make the airflow enter the dust removal equipment more evenly, avoid airflow deviation, eddy current and other phenomena, the limiting ring 13 is set in an L shape, the limiting ring 13 is fixedly connected with a support block 15 near the inner wall of the circular hole 12, and the inner wall of the shell 11 is fixedly connected with a spring plate 14. By setting the spring plate 14, the elastic effect of the spring plate is utilized to make the airflow produce high-frequency vibration and disturbance, increase the collision probability between small and medium-sized dust particles, and promote their condensation into larger particles, so that they are easier to be captured and settled by water later. At the same time, when the water inside the equipment has a tendency to flow to the air inlet pipe 5 due to air flow fluctuations, pressure changes and other reasons, the spring plate 14 can directly block the flow of water to prevent water from mixing with the dust being transported, thereby causing the dust to agglomerate. The agglomerated dust not only affects the air flow, but also may block the air inlet pipe 5. By reducing the possibility of water entering the air inlet pipe 5, it is further ensured that the dust can smoothly enter the dust removal equipment for treatment, ensure the normal operation of the dust removal system, and improve the dust removal efficiency.

[0029] The second embodiment is based on the first embodiment. Figures 5 to 7As shown, the middle of the bottom of the housing 11 near the motor 6 is convex, the inner wall of the housing 11 is fixedly connected with an intermediate ring 16, the bottom of the intermediate ring 16 is fixedly connected with a circular ring 17, the end of the circular ring 17 away from the intermediate ring 16 is fixedly connected to the middle of the inner wall of the housing 11, and a filter hole is provided on the outer side of the circular ring 17. The water after spraying flows downward along the outer side of the intermediate ring 16 and the inner wall of the housing 11, and flows back into the water at the bottom to avoid dust residue on the outer wall of the intermediate ring 16 and the inner wall of the housing 11. At the same time, the circular ring 17 separates the water inside the housing 11 to prevent impurities in the water entering the circular tube 18, which causes the spray pipe 19 to be blocked. The inner wall of the housing 11 is fixedly connected with the spray pipe 19, and the airflow enters the inner wall of the housing 11 through the air inlet pipe 5 and the circular hole 12. The gas then flows upward through the gap between the limit ring 13 and the middle ring 16. At the same time, the water inside the shell 11 enters the spray pipe 19 through the circular tube 18, and then is sprayed downward from the spray port on the spray pipe 19. At this time, the water droplets sprayed downward form a counter-flow with the upward dust-laden airflow. In this process, the water droplets are fully in contact with the dust in the airflow, and the dust particles are adsorbed and wrapped by the water droplets to form larger particles, which quickly settle under the action of gravity, thereby achieving efficient dust removal. The spray pipe 19 is located near the inner wall of the fan 4. The spray pipe 19 is located at the gap between the shell 11 and the middle ring 16. The middle of the inner wall of the shell 11 is fixedly connected with the middle pipe 111. The filter assembly 7 is located inside the middle pipe 111. The middle ring 16 is close to the shell 11 A through hole 110 is provided at one end, and the two sides of the middle ring 16 are connected through the through hole 110. The airflow enters the space between the outer shell 11 and the limiting ring 13 through the air inlet pipe 5 and the circular hole 12, and then enters the interval between the limiting ring 13 and the middle ring 16 through the water at the bottom of the outer shell 11, so that the gas enters the interval between the middle ring 16 and the middle pipe 111 through the through hole 110 at the top of the middle ring 16, so that the dust-removed gas enters the middle pipe 111. At the same time, the fan 4 works, so that the gas is discharged from the fan 4 through the filter assembly 7. When the gas enters the water, the larger dust particles will sink directly to the bottom of the water due to inertia, while some smaller dust particles will be adsorbed or dissolved by the water during the contact with the water, thereby preliminarily realizing the separation of gas and dust. , and then the gas passing through the water body is sprayed, thereby further processing the finer dust particles. The combination of the two realizes multi-stage capture of dust of different particle sizes, greatly improving the dust removal efficiency. At the same time, since the dust-containing gas usually contains harmful gases such as sulfur dioxide and hydrogen sulfide, when the gas directly enters the water, some of the harmful gases can be dissolved in the water and removed. In the subsequent spraying stage, the remaining harmful gases can be further absorbed, thereby realizing the simultaneous removal of dust and harmful gases, making the discharged gas cleaner. The inner wall of the intermediate tube 111 is provided with an annular groove 113, and the inner wall of the intermediate ring 16 is provided with a circular tube 18, one end of which is fixedly connected to the spray pipe 19, and the circular tube 18 passes through the intermediate ring 16 and extends to the inside of the circular ring 17.The middle ring 16 is located between the middle tube 111 and the outer shell 11. The inner wall of the outer shell 11 is fixedly connected with a partition 112. By setting the partition 112, it can be ensured that the dust-laden airflow is evenly distributed in the spraying area to avoid the situation where the local airflow is too strong or too weak. In this way, the spray water can contact the dust in the airflow more evenly, ensure the consistency of the dust removal effect, and reduce the dust removal dead angle caused by uneven airflow. The partition 112 is located at the interval between the middle ring 16 and the outer shell 11. There are multiple partitions 112, and multiple partitions 112 divide the space between the middle ring 16 and the outer shell 11 into multiple spaces.

[0030] The third embodiment is based on the first and second embodiments. Figures 8 to 10As shown, the filter assembly 7 includes a rotating shaft 71, which is fixedly connected to the output end of the motor 6, a connecting frame 72 is fixedly connected to the outer side of the rotating shaft 71, the connecting frame 72 is located inside the middle ring 16, an extension rod 73 is fixedly connected to the top of the connecting frame 72, there are multiple extension rods 73, and the multiple extension rods 73 are evenly distributed around the rotating shaft 71, the extension rod 73 is located at the interval between the middle tube 111 and the middle ring 16, and a cleaning ring 74 is fixedly connected to the outer side of the extension rod 73. When the motor 6 is connected to an external power supply and works, the motor 6 drives the rotating shaft 71 to rotate, and the rotating shaft 71 drives the extension rod 73 to rotate through the connecting frame 72. The cleaning ring 74 on the side cleans the inner wall of the middle ring 16 and the outer wall of the middle tube 111, and then the airflow passes through the filter assembly 7. A desiccant is placed between the circular plate 75 and the bottom plate 77, so as to dehumidify the gas, reduce corrosion to the fan 4 at the discharge position, and improve the service life of the equipment. During the working process, the rotating shaft 71 drives the circular plate 75 and the bottom plate 77 to rotate, and the inclined plate 712 and the square plate 713 are staggered up and down, so that when the circular plate 75 and the bottom plate 77 rotate, the desiccant flips up and down under the push of the inclined plate 712 and the square plate 713, so that it can fully contact with the humid gas, so that more desiccant surfaces can participate in the moisture absorption process, thereby The dehumidification efficiency can be improved by adsorbing moisture in the gas more quickly and more effectively, and the uniform turning can make each part of the desiccant absorb moisture evenly, avoiding premature failure due to local excessive moisture absorption, thereby extending the overall service life of the desiccant. A circular plate 75 is slidably connected to the outer side of the rotating shaft 71, a positioning ring 76 is fixedly connected to the inner wall of the annular groove 113, an extension tube 78 is fixedly connected to the side of the circular plate 75 close to the rotating shaft 71, and a cylinder 79 is slidably connected to the end of the extension tube 78 away from the circular plate 75, a spring 711 is fixedly connected to the side of the circular plate 75 close to the extension tube 78, the cylinder 79 has magnetism, and the end of the spring 711 away from the circular plate 75 is fixedly connected The connecting ring 710 has a connecting tube 714 fixedly connected to its outer side, and one end of the connecting tube 714 away from the circular plate 75 is fixedly connected to the bottom plate 77. The circular plate 75 and the bottom plate 77 are clamped together by the cylinder 79 and the slot, so as to facilitate the replacement of the desiccant in the gap between the circular plate 75 and the bottom plate 77. The positioning ring 76 is located at the gap between the circular plate 75 and the bottom plate 77. The connecting ring 710 is sleeved on the outer side of the extension tube 78. The inner wall of the connecting tube 714 is provided with a slot, and the cylinder 79 is located inside the slot. The side of the positioning ring 76 close to the bottom plate 77 is fixedly connected to the inclined plate 712, and the side of the positioning ring 76 close to the circular plate 75 is fixedly connected to the square plate 713.

[0031] When in use, the air flow enters the space between the outer shell 11 and the limiting ring 13 through the air inlet pipe 5 and the circular hole 12, and then enters the gap between the limiting ring 13 and the intermediate ring 16 through the water at the bottom of the outer shell 11, so that the gas enters the gap between the intermediate ring 16 and the intermediate tube 111 through the through hole 110 at the top of the intermediate ring 16, so that the dust-removed gas enters the interior of the intermediate tube 111, and at the same time, the fan 4 works, so that the gas is discharged from the fan 4 through the filter assembly 7.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0033] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust collection device for coal mining construction, characterized in that: include: A shell (1), a fan (4) is fixedly connected to the top of the shell (1), a fixing ring (2) is fixedly connected to the outside of the shell (1), an air intake pipe (5) is fixedly connected to the outside of the fixing ring (2), a motor (6) is fixedly connected to the middle of the bottom of the shell (1), and a support (3) is fixedly connected to the bottom edge of the shell (1); A filter assembly (7), wherein the filter assembly (7) is fixedly mounted inside the housing (1), the filter assembly (7) is located at one end close to the fan (4), and the filter assembly (7) is located in the middle of the housing (1); The housing (1) comprises an outer shell (11), the middle of the bottom of the outer shell (11) is fixedly connected to the motor (6), a circular hole (12) is provided on the inner wall of the outer shell (11) close to the air intake pipe (5), a limiting ring (13) is fixedly connected to the inner wall of the outer shell (11), the limiting ring (13) is L-shaped, a support block (15) is fixedly connected to the inner wall of the limiting ring (13) close to the circular hole (12), and a spring plate (14) is fixedly connected to the inner wall of the outer shell (11).

2. A dust collection device for coal mining construction according to claim 1, characterized in that: The housing (11) is provided with a protrusion in the middle of the bottom near the motor (6); an intermediate ring (16) is fixedly connected to the inner wall of the housing (11); a circular ring (17) is fixedly connected to the bottom of the intermediate ring (16); and one end of the circular ring (17) away from the intermediate ring (16) is fixedly connected to the middle of the inner wall of the housing (11).

3. A dust collection device for coal mining construction according to claim 2, characterized in that: The outer side of the circular ring (17) is provided with filter holes, the inner wall of the outer shell (11) is fixedly connected to a spray pipe (19), the spray pipe (19) is located near the inner wall of the fan (4), the spray pipe (19) is located at the interval between the outer shell (11) and the intermediate ring (16), the middle of the inner wall of the outer shell (11) is fixedly connected to an intermediate pipe (111), and the filter assembly (7) is located inside the intermediate pipe (111).

4. A dust collection device for coal mining construction according to claim 3, characterized in that: A through hole (110) is provided at one end of the intermediate ring (16) close to the outer shell (11), and two sides of the intermediate ring (16) are connected through the through hole (110). An annular groove (113) is provided on the inner wall of the intermediate tube (111). A circular tube (18) is provided on the inner wall of the intermediate ring (16), and one end of the circular tube (18) is fixedly connected to a spray pipe (19). The circular tube (18) passes through the intermediate ring (16) and extends to the interior of the circular ring (17).

5. A dust collection device for coal mining construction according to claim 4, characterized in that: The intermediate ring (16) is located between the intermediate tube (111) and the outer shell (11); a partition (112) is fixedly connected to the inner wall of the outer shell (11); the partition (112) is located at the interval between the intermediate ring (16) and the outer shell (11); there are multiple partitions (112); and the multiple partitions (112) divide the space between the intermediate ring (16) and the outer shell (11) into multiple spaces.

6. A dust collection device for coal mining construction according to claim 5, characterized in that: The filter assembly (7) comprises a rotating shaft (71), the rotating shaft (71) is fixedly connected to the output end of the motor (6), a connecting frame (72) is fixedly connected to the outer side of the rotating shaft (71), the connecting frame (72) is located inside the middle ring (16), and an extension rod (73) is fixedly connected to the top of the connecting frame (72).

7. A dust collection device for coal mining construction according to claim 6, characterized in that: There are multiple extension rods (73), which are evenly distributed around the rotating shaft (71). The extension rods (73) are located at the interval between the middle tube (111) and the middle ring (16), and a cleaning ring (74) is fixedly connected to the outer side of the extension rods (73).

8. A dust collection device for coal mining construction according to claim 7, characterized in that: A circular plate (75) is slidably connected to the outer side of the rotating shaft (71), a positioning ring (76) is fixedly connected to the inner wall of the annular groove (113), an extension tube (78) is fixedly connected to the side of the circular plate (75) close to the rotating shaft (71), a cylinder (79) is slidably connected to the end of the extension tube (78) away from the circular plate (75), and a spring (711) is fixedly connected to the side of the circular plate (75) close to the extension tube (78).

9. A dust collection device for coal mining construction according to claim 8, characterized in that: One end of the spring (711) away from the circular plate (75) is fixedly connected to a connecting ring (710), the outer side of the connecting ring (710) is fixedly connected to a connecting pipe (714), one end of the connecting pipe (714) away from the circular plate (75) is fixedly connected to a bottom plate (77), and the positioning ring (76) is located at the interval between the circular plate (75) and the bottom plate (77).

10. A dust collection device for coal mining construction according to claim 9, characterized in that: The connecting ring (710) is sleeved on the outer side of the extension tube (78); the inner wall of the connecting tube (714) is provided with a slot; the cylinder (79) is located inside the slot; the side of the positioning ring (76) close to the bottom plate (77) is fixedly connected to an inclined plate (712); and the side of the positioning ring (76) close to the circular plate (75) is fixedly connected to a square plate (713).

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