Ventilation device for coal mine operation

Abstract

The invention relates to the technical field of coal mine equipment, and discloses a ventilation device for coal mine operation, the ventilation device comprises a pipeline and a filter screen part, the outer side of the pipeline is fixedly connected with a hoop, the top of the hoop is fixedly connected with a mounting plate, and the ventilation device further comprises an air inlet cover fixedly mounted at the end part of one side of the pipeline, a cleaning assembly is arranged on one side of the interior of the pipeline, a dust collecting box is fixedly connected to one side of the bottom of the pipeline, and a spraying assembly is arranged in the dust collecting box; the bottom of the dust collection box is fixedly connected with a water tank, and pressure pumps are symmetrically and fixedly mounted on one side of the back surface of the water tank; the cleaning assembly comprises a fixing plate, a servo motor is fixedly installed on the inner wall of the pipeline, the output end of the servo motor is fixedly connected with a lead screw, and the problems that after long-time use, the situation that a filter screen is blocked locally still possibly exists, the ventilation effect and the ventilation efficiency are reduced, and the filter screen needs to be detached and cleaned subsequently are solved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine equipment, in particular to a ventilation device used for coal mine operations. Background Art

[0002] Coal mines are an important resource. During the coal mining process, workers are required to work underground. The space underground is relatively closed, so a ventilation device needs to be installed in the underground space. Existing ventilation devices generally have scrapers to scrape and clean the dust filter. However, after long-term use, scraping alone is not enough to completely clean the filter. The filter may still be partially blocked, requiring subsequent manual disassembly and cleaning.

[0003] For example, a coal mine operation ventilation device with announcement number CN217518689U belongs to the technical field of ventilation devices; it includes an air inlet pipe, a connecting pipe is arranged at the bottom end of the air inlet pipe, a fan is arranged at the middle position of the connecting pipe, an air outlet pipe is arranged at the bottom end of the connecting pipe, the air inlet pipe is connected with the air outlet pipe through the connecting pipe, a collecting box is arranged at the bottom end of the air outlet pipe, the air outlet pipe and the collecting box are connected with each other, a filter plate is arranged inside the air outlet pipe, dust on the filter plate can be directly cleaned, and then the cleaned dust enters the interior of the collecting box for collection, so as to avoid the accumulation of dust inside the air outlet pipe and cause the filter plate to be blocked, thereby making the filter plate have a longer service life, and at the same time, there is no need to disassemble and clean the filter plate, thereby improving the ventilation efficiency of the air inlet pipe and the air outlet pipe. However, the device only scrapes and cleans the filter by a cleaning block. After long-term use, the filter may still be partially blocked, which reduces the ventilation effect and ventilation efficiency. The filter needs to be disassembled and cleaned later, which has certain defects.

[0004] Therefore, a ventilation device for coal mine operation is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a ventilation device for coal mine operations to solve the problem that after long-term use, the filter may still be partially blocked, reducing the ventilation effect and efficiency, and the filter needs to be disassembled and cleaned subsequently.

[0006] To achieve the above object, the present invention provides the following technical solution: a ventilation device for coal mine operation, comprising a pipe and a filter screen, the outer side of the pipe is fixedly connected with a hoop, the top of the hoop is fixedly connected with a mounting plate, and bolts are installed inside the mounting plate;

[0007] Also includes:

[0008] An air inlet cover is fixedly mounted on one end of the pipe, a cleaning assembly is provided on one side of the pipe, a dust collecting box is fixedly connected to one side of the bottom of the pipe, and a spray assembly is provided inside the dust collecting box;

[0009] The bottom of the dust collecting box is fixedly connected to a water tank, a pressure pump is symmetrically fixedly installed on one side of the back of the water tank, an air inlet cylinder is fixedly installed on one side of the inner part of the pipe, a driving motor is fixedly installed on one side of the inner part of the air inlet cylinder, and an output end of the driving motor is fixedly connected to an inlet fan blade;

[0010] The cleaning assembly includes a fixing plate, the fixing plate is fixedly connected to the inner wall of the pipeline, the filter part is installed in the middle of the fixing plate, the filter part includes two L-shaped parts, a servo motor is fixedly installed on the inner wall of the pipeline, a screw rod is fixedly connected to the output end of the servo motor, the top end of the screw rod is fixedly connected to the inner top surface of the pipeline, a limiting rod is installed on the side of the fixing plate away from the servo motor, and a threaded sleeve is sleeved on the outer side of the screw rod;

[0011] The outer side of the limit rod is slidably connected with a sliding sleeve, a connecting plate is fixedly connected between the threaded sleeve and the sliding sleeve, the connecting plate is slidably installed with the fixed plate, and scraping plates are symmetrically installed on both sides of the fixed plate, one side of the scraping plate is fixedly connected with the threaded sleeve, and the other side of the scraping plate is fixedly connected with the sliding sleeve;

[0012] A transverse groove is provided on one side of the scraper plate close to the filter screen, an inner scraper plate is slidably mounted inside the transverse groove, a return spring is fixedly connected to one side of the inner side of the transverse groove, one end of the return spring is fixedly connected to the inner scraper plate, and an inclined block is fixedly connected to the side of the inner scraper plate away from the return spring;

[0013] The outer side of the fixed plate is symmetrically fixedly connected with an extrusion block, the inner side of the fixed plate is rotatably mounted with a vertical rod, the top of the vertical rod is fixedly connected with a driven wheel, the top of the pipe is rotatably connected with a driving wheel, a belt is sleeved between the driving wheel and the driven wheel, and the top of the driving wheel is fixedly connected with a rotating rod;

[0014] The spray assembly includes a connecting pipe, one end of which is connected to a water tank, the other end of which is connected to an inlet end of a pressure pump, an outlet end of the pressure pump is respectively connected to a water outlet pipe 1 and a water outlet pipe 2, an end of the water outlet pipe 1 away from the pressure pump is connected to a lower plate, and a side nozzle is installed on the outer side of the lower plate;

[0015] The end of the second water outlet pipe away from the pressure pump is connected to the upper disk body, the side of the lower disk body away from the first water outlet pipe is equipped with a lower nozzle, and the side of the upper disk body away from the second water outlet pipe is equipped with an upper nozzle.

[0016] Preferably, the spray assembly includes two symmetrically arranged groups, the inlet fan blades are located between the air inlet cover and the drive motor, the fixed plate is located on the side of the air inlet cylinder away from the air inlet cover, the servo motor is located on one side of the fixed plate, and the top and bottom ends of the limit rod are fixedly connected to the inner wall of the pipe.

[0017] By adopting the above technical solution, the scraper plate and the inner scraper plate scrape the outer side of the filter screen vertically and reciprocatingly, and the inner scraper plate also scrapes horizontally and linearly at the same time, thereby improving the cleaning effect of the filter screen. The filter screen can be replaced by turning the rotating rod 90 degrees counterclockwise, and the filter screen on the left side that has been used for a long time can be rinsed by the spray assembly.

[0018] Preferably, a vertical groove is opened on the other side of the interior of the fixing plate, the connecting plate is located inside the vertical groove, the connecting plate is slidably connected to the vertical groove, and the scraping plate is in contact with the filter part.

[0019] By adopting the above technical solution, the sliding sleeve slides on the limiting rod to limit the connecting plate and the threaded sleeve. The servo motor rotates to drive the threaded sleeve to rise and fall. When the threaded sleeve rises or falls, it will drive the scraper plate and the inclined block to rise and fall.

[0020] Preferably, the inner scraper is fitted with the filter screen, the top and bottom of the inclined block are both provided with inclined surfaces, and the extrusion blocks are evenly arranged from top to bottom.

[0021] By adopting the above technical solution, when the upper and lower inclined surfaces of the inclined block are squeezed by the extrusion block, the inner scraper will be driven to slide inside the transverse groove. When the inclined block is separated from the extrusion block, the elastic force of the reset spring drives the inner scraper and the inclined block to reset, thereby realizing the vertical reciprocating scraping of the outer side of the filter screen by the scraper plate and the inner scraper.

[0022] Preferably, a circular hole is opened in the middle of the fixed plate, a magnetic stripe ring is fixedly connected to the inner wall of the circular hole, the filter part is snap-connected with the magnetic stripe ring, and the magnetic stripe ring and the filter part are adsorbed.

[0023] By adopting the above technical solution, the two filter parts can be replaced by turning the rotating rod counterclockwise by 90 degrees, and the magnetic strip ring facilitates the installation and positioning of the filter part.

[0024] Preferably, the driven wheel is located at the top of the pipeline, and an identification block is fixedly connected to the outer side of the rotating rod, and the identification block is arranged in an L shape.

[0025] By adopting the above technical solution, the identification block is convenient for operators to display the position status of the two filter parts when rotating the filter part externally, thereby facilitating the replacement operation of the filter part.

[0026] Preferably, the lower disc is located inside the dust box, the pipeline is connected to the inside of the dust box, the lower disc is connected to a water outlet pipe, and the lower disc and the water outlet pipe are rotatably installed, and the side nozzles are arranged in an array.

[0027] By adopting the above technical solution, the pressure pump pumps water through the connecting pipe, and the water inside the water outlet pipe is transported to the lower plate body and sprayed out by the side nozzle and the lower nozzle.

[0028] Preferably, the lower nozzle is located inside the dust collecting box, and a push rod is fixedly connected to one side of the lower disk body close to the water outlet pipe 1, and the push rods are arranged in an array, and there are no less than six push rods.

[0029] By adopting the above technical solution, the reaction force of the water sprayed by the side nozzle drives the lower disc to rotate, and the rotation of the lower disc drives the push rod to rotate.

[0030] Preferably, the upper disk body is connected with the second water outlet pipe, the upper disk body and the second water outlet pipe are rotatably installed, the outer side of the upper disk body is fixedly connected with a connecting block, the connecting blocks are arranged in an array, the connecting blocks and the push rods are arranged at intervals, and the side of the upper disk body away from the second water outlet pipe is fixedly installed with an upper nozzle, and the upper nozzle is arranged in a vertical row.

[0031] By adopting the above technical solution, the push rod rotates to drive the connecting block to rotate, so that the upper disk and the upper nozzle can also rotate. The upper nozzles are arranged in a straight line. By reducing the number of upper nozzles, the water spraying pressure of the upper nozzles is increased.

[0032] Compared with the prior art, the invention has the following beneficial effects: a cleaning assembly is provided, so that the scraper plate and the inner scraper plate can scrape the outer side of the filter screen vertically and reciprocatingly, and the inner scraper plate can scrape horizontally and linearly at the same time, thereby improving the cleaning effect of the filter screen. The operator can replace the filter screen by turning the rotating rod counterclockwise by 90 degrees, and rinse the filter screen that has been used for a long time on the left side by the spray assembly, thereby reducing the residual dust and impurities on the filter screen that are difficult to scrape off, facilitating the subsequent reuse of the filter screen, and reducing the trouble of manual disassembly and cleaning;

[0033] 1. A cleaning component is provided. When in use, the driving motor is started, and the driving motor drives the fan blades to rotate and extract air. The gas is filtered and transported through the filter part in the center of the fixed plate. At the same time, the servo motor is started, and the servo motor drives the screw rod to rotate. The sliding sleeve slides on the limit rod to limit the connecting plate and the threaded sleeve. The rotation of the servo motor drives the threaded sleeve to rise and fall. When the threaded sleeve rises or falls, it will drive the scraper plate and the inclined block to rise and fall. When the upper and lower inclined surfaces of the inclined block are squeezed by the extrusion block, it will drive the inner scraper to slide inside the horizontal groove. The inner scraper compresses the reset spring. When the oblique block is separated from the extrusion block, the elastic force of the reset spring drives the inner scraper and the oblique block to reset, thereby realizing the scraper plate and the inner scraper to vertically reciprocate and scrape the outer side of the filter part. The inner scraper will also scrape horizontally and linearly at the same time, which improves the cleaning effect of the filter part, and the scraped dust falls into the collector The dust is collected in the dust box, and after a period of time, the servo motor drives the scraper plate to move to the top, which will not block the rotation of the filter part. The operator turns the rotating rod 90 degrees counterclockwise, and the rotating rod drives the driving wheel to rotate. The driving wheel drives the driven wheel to rotate through the belt, and the driven wheel drives the vertical rod to rotate, so that the filter part on the left side rotates horizontally and the filter part on the right side rotates vertically. The filter part is adsorbed and fixed with the magnetic strip ring to realize the replacement of the filter part, and the filter part on the left side that has been used for a long time is rinsed by the spray component, which reduces the residual dust and impurities on the filter part that are difficult to scrape off, facilitates the subsequent reuse of the filter part, reduces the trouble of manual disassembly and cleaning, and solves the problem that the filter may still be partially blocked after long-term use, reduces the ventilation effect and ventilation efficiency, and needs to be disassembled and cleaned later.

[0034] 2. A spray assembly is provided. The pressure pump pumps water through the connecting pipe. The water is discharged through the outlet pipe 1 and the outlet pipe 2. The water inside the outlet pipe 1 is transported to the lower disk and sprayed out by the side nozzle and the lower nozzle. The reaction force of the water spraying from the side nozzle drives the lower disk to rotate. The water sprayed by the lower nozzle reduces the dust inside the dust collecting box and reduces the influence of the dust being extracted again. The water inside the outlet pipe 2 enters the upper disk and is sprayed out by the upper nozzle. The upper nozzle sprays water to clean the unused filter part, and the rotation of the lower disk drives the push rod to rotate. The rotation of the push rod drives the connecting block to rotate, so that the upper disk and the upper nozzle can also rotate. The upper nozzle is arranged in a straight line. By reducing the number of upper nozzles, the water spraying pressure of the upper nozzle is increased, thereby improving the flushing effect of the filter part. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the cross-sectional structure of the pipeline of the present invention;

[0036] Figure 2 It is a schematic diagram of the first three-dimensional overall structure of the present invention;

[0037] Figure 3 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0038] Figure 4 This is a schematic diagram of the fixing plate installation structure of the present invention;

[0039] Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0040] Figure 6 It is a schematic cross-sectional structure diagram of the scraper plate of the present invention;

[0041] Figure 7 This is a schematic diagram of the filter part of the present invention rotated 90 degrees counterclockwise;

[0042] Figure 8 This is a schematic diagram of the installation structure of the rotating rod of the present invention;

[0043] Fig. 9 This is a schematic diagram of the installation structure of the lower plate of the present invention;

[0044] Fig.10 This is a schematic diagram of the installation structure of the push rod of the present invention;

[0045] Fig.11 It is a schematic diagram of the second three-dimensional overall structure of the present invention.

[0046] In the figure: 1, pipe; 2, hoop; 3, mounting plate; 4, air inlet cover; 5, cleaning assembly; 51, fixing plate; 52, servo motor; 53, screw rod; 54, limit rod; 55, threaded sleeve; 56, connecting plate; 57, sliding sleeve; 58, vertical groove; 59, scraper plate; 510, horizontal groove; 511, inner scraper; 512, return spring; 513, inclined block; 514, extrusion block; 515, magnetic stripe ring; 516, vertical rod; 517, from Driving wheel; 518, driving wheel; 519, belt; 520, rotating rod; 6, spray assembly; 61, connecting pipe; 62, water outlet pipe 1; 63, lower plate; 64, side nozzle; 65, lower nozzle; 66, push rod; 67, water outlet pipe 2; 68, upper plate; 69, connecting block; 610, upper nozzle; 7, dust box; 8, water tank; 9, pressure pump; 10, filter part; 11, air inlet tube; 12, driving motor; 13, air inlet fan blades. DETAILED DESCRIPTION

[0047] 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.

[0048] See also Figure 1-Figure 11The present invention provides a technical solution: a ventilation device for coal mine operations, including a pipe 1 and a filter part 10, a sleeve 2 is fixedly connected to the outside of the pipe 1, a mounting plate 3 is fixedly connected to the top of the sleeve 2, and bolts are installed inside the mounting plate 3.

[0049] The air inlet cover 4 is fixedly mounted on one end of the pipe 1 , and a dust collecting box 7 is fixedly connected to one side of the bottom of the pipe 1 .

[0050] A water tank 8 is fixedly connected to the bottom of the dust box 7, a pressure pump 9 is symmetrically fixedly installed on the back side of the water tank 8, an air inlet tube 11 is fixedly installed on the inner side of the pipe 1, a drive motor 12 is fixedly installed on the inner side of the air inlet tube 11, and an inlet fan blade 13 is fixedly connected to the output end of the drive motor 12.

[0051] A cleaning assembly 5 is provided on one side of the interior of the pipe 1, and the cleaning assembly 5 includes a fixed plate 51, and the fixed plate 51 is fixedly connected to the inner wall of the pipe 1. The filter part 10 is installed in the middle of the fixed plate 51, and the filter part 10 includes two L-shaped arrangements. A servo motor 52 is fixedly installed on the inner wall of the pipe 1, and a screw rod 53 is fixedly connected to the output end of the servo motor 52. The top of the screw rod 53 is fixedly connected to the inner top surface of the pipe 1. A limiting rod 54 is installed on the side of the fixed plate 51 away from the servo motor 52, and a threaded sleeve 55 is sleeved on the outer side of the screw rod 53.

[0052] The fan blades 13 are located between the air inlet cover 4 and the drive motor 12, the fixing plate 51 is located on the side of the air inlet cylinder 11 away from the air inlet cover 4, the servo motor 52 is located on one side of the fixing plate 51, and the top and bottom ends of the limit rod 54 are fixedly connected to the inner wall of the pipe 1.

[0053] A sliding sleeve 57 is slidably connected to the outer side of the limiting rod 54, a connecting plate 56 is fixedly connected between the threaded sleeve 55 and the sliding sleeve 57, the connecting plate 56 is slidably installed with the fixed plate 51, and scraper plates 59 are symmetrically installed on both sides of the fixed plate 51, one side of the scraper plate 59 is fixedly connected to the threaded sleeve 55, and the other side of the scraper plate 59 is fixedly connected to the sliding sleeve 57.

[0054] A vertical groove 58 is formed on the other side of the fixing plate 51 . The connecting plate 56 is located inside the vertical groove 58 . The connecting plate 56 is slidably connected to the vertical groove 58 . The scraping plate 59 is in contact with the filter part 10 .

[0055] A transverse groove 510 is provided on one side of the scraper plate 59 close to the filter part 10, an inner scraper plate 511 is slidably installed inside the transverse groove 510, a return spring 512 is fixedly connected to one side of the inner side of the transverse groove 510, one end of the return spring 512 is fixedly connected to the inner scraper plate 511, and a bevel block 513 is fixedly connected to the side of the inner scraper plate 511 away from the return spring 512.

[0056] The outer side of the fixed plate 51 is symmetrically fixedly connected with an extrusion block 514, the inner side of the fixed plate 51 is rotatably installed with a vertical rod 516, the top of the vertical rod 516 is fixedly connected with a driven wheel 517, the top of the pipeline 1 is rotatably connected with a driving wheel 518, a belt 519 is sleeved between the driving wheel 518 and the driven wheel 517, and the top of the driving wheel 518 is fixedly connected with a rotating rod 520.

[0057] The inner scraper 511 is fitted with the filter screen portion 10 , the top and bottom of the inclined block 513 are both provided with inclined surfaces, and the extrusion blocks 514 are evenly arranged from top to bottom.

[0058] A circular hole is opened in the middle of the fixing plate 51 , and a magnetic stripe ring 515 is fixedly connected to the inner wall of the circular hole. The filter part 10 is engaged with the magnetic stripe ring 515 , and the magnetic stripe ring 515 and the filter part 10 are adsorbed.

[0059] The driven wheel 517 is located at the top of the pipeline 1, and an identification block is fixedly connected to the outer side of the rotating rod 520, and the identification block is set in an L shape.

[0060] Embodiment 1: Figure 1-Figure 8 As shown, the drive motor 12 is started, and the drive motor 12 drives the fan blades 13 to rotate to extract air. The gas is filtered and transported through the filter part 10 in the center of the fixed plate 51. At the same time, the servo motor 52 is started, and the servo motor 52 drives the screw rod 53 to rotate. The sliding sleeve 57 slides on the limiting rod 54 to limit the connecting plate 56 and the threaded sleeve 55. The rotation of the servo motor 52 drives the threaded sleeve 55 to rise and fall.

[0061] When the threaded sleeve 55 rises or falls, it will drive the scraper plate 59 and the inclined block 513 to rise and fall. When the upper and lower inclined surfaces of the inclined block 513 are squeezed by the extrusion block 514, the inner scraper plate 511 will slide inside the transverse groove 510. The inner scraper plate 511 compresses the reset spring 512. When the inclined block 513 is separated from the extrusion block 514, the elastic force of the reset spring 512 drives the inner scraper plate 511 and the inclined block 513 to reset, thereby realizing the scraper plate 59 and the inner scraper plate 511 to scrape the outer side of the filter screen part 10 vertically and reciprocatingly. At the same time, the inner scraper plate 511 will also scrape horizontally and linearly, thereby improving the cleaning effect of the filter screen part 10, and the scraped dust falls into the dust collecting box 7 for collection.

[0062] After a period of time, the servo motor 52 drives the scraper plate 59 to move to the top, which will not block the rotation of the filter part 10. The operator turns the rotating rod 520 counterclockwise for 90 degrees, and the rotating rod 520 drives the driving wheel 518 to rotate. The driving wheel 518 drives the driven wheel 517 to rotate through the belt 519, and the driven wheel 517 drives the vertical rod 516 to rotate, so that the filter part 10 on the left side rotates horizontally and the filter part 10 on the right side rotates vertically. The filter part 10 is adsorbed and fixed to the magnetic strip ring 515 to achieve the replacement of the filter part 10, and the filter part 10 on the left side that has been used for a long time is rinsed by the spray assembly 6, thereby reducing the residual dust and impurities on the filter part 10 that are difficult to scrape off, facilitating the subsequent reuse of the filter part 10, reducing the trouble of manual disassembly and cleaning, and solving the problem that the filter may still be partially blocked after long-term use, reducing the ventilation effect and ventilation efficiency, and the problem that the filter needs to be disassembled and cleaned later.

[0063] A spray assembly 6 is arranged inside the dust collecting box 7. The spray assembly 6 includes two symmetrically arranged groups. The spray assembly 6 includes a connecting pipe 61. One end of the connecting pipe 61 is connected to the water tank 8, and the other end of the connecting pipe 61 is connected to the inlet end of the pressure pump 9. The outlet end of the pressure pump 9 is respectively connected to a water outlet pipe 1 62 and a water outlet pipe 2 67. The end of the water outlet pipe 1 62 away from the pressure pump 9 is connected to a lower disk body 63, and a side nozzle 64 is installed on the outer side of the lower disk body 63.

[0064] The lower plate 63 is located inside the dust box 7, the pipeline 1 is connected to the inside of the dust box 7, the lower plate 63 is connected to the water outlet pipe 1 62, and the lower plate 63 and the water outlet pipe 1 62 are rotatably installed, and the side nozzles 64 are arranged in an array.

[0065] The end of the water outlet pipe 2 67 away from the pressure pump 9 is connected to the upper disk body 68, the side of the lower disk body 63 away from the water outlet pipe 1 62 is installed with the lower nozzle 65, and the side of the upper disk body 68 away from the water outlet pipe 2 67 is installed with the upper nozzle 610.

[0066] The lower nozzle 65 is located inside the dust collecting box 7. A push rod 66 is fixedly connected to one side of the lower plate 63 close to the water outlet pipe 1 62. The push rod 66 is arranged in an array, and there are no less than six push rods 66.

[0067] The upper disk body 68 is connected with the water outlet pipe 67, and the upper disk body 68 and the water outlet pipe 67 are rotatably installed. The outer side of the upper disk body 68 is fixedly connected with a connecting block 69, and the connecting block 69 is arranged in an array. The connecting block 69 and the push rod 66 are arranged at intervals. An upper nozzle 610 is fixedly installed on the side of the upper disk body 68 away from the water outlet pipe 67, and the upper nozzle 610 is arranged in a vertical row.

[0068] Embodiment 2: Figure 9-11As shown, the pressure pump 9 pumps water through the connecting pipe 61, and the water is discharged through the outlet pipe 1 62 and the outlet pipe 2 67. The water inside the outlet pipe 1 62 is transported to the lower plate 63 and sprayed out by the side nozzle 64 and the lower nozzle 65. The reaction force of the water sprayed by the side nozzle 64 drives the lower plate 63 to rotate, and the water sprayed by the lower nozzle 65 reduces the dust inside the dust collecting box 7 and reduces the impact of the dust being extracted again.

[0069] The water inside the water outlet pipe 67 enters the upper disk body 68 and is sprayed out by the upper nozzle 610. The upper nozzle 610 sprays water to clean the unused filter part 10, and the rotation of the lower disk body 63 drives the push rod 66 to rotate, and the rotation of the push rod 66 drives the connecting block 69 to rotate, so that the upper disk body 68 and the upper nozzle 610 can also rotate. The upper nozzle 610 is arranged in a straight line. By reducing the number of the upper nozzles 610, the water spraying and flushing pressure of the upper nozzles 610 is increased, thereby improving the flushing effect of the filter part 10.

[0070] Working principle: When using the device, first, Figure 1-Figure 11 As shown, the driving motor 12 is started, and the driving motor 12 drives the fan blades 13 to rotate to extract air, and the gas is filtered and transported through the filter part 10 in the center of the fixed plate 51.

[0071] At the same time, the servo motor 52 is started, and the servo motor 52 drives the screw rod 53 to rotate. When the threaded sleeve 55 rises or falls, it will drive the scraper plate 59 and the inclined block 513 to rise and fall. When the upper and lower inclined surfaces of the inclined block 513 are squeezed by the squeezing block 514, the inner scraper plate 511 will be driven to slide inside the transverse groove 510, so that the scraper plate 59 and the inner scraper plate 511 can scrape the outer side of the filter screen portion 10 vertically and reciprocally. The inner scraper plate 511 can also scrape horizontally and linearly at the same time, thereby improving the cleaning effect of the filter screen portion 10. The scraped dust falls into the dust collecting box 7 for collection. After a period of time, the servo motor 52 drives the scraper plate 59 to move to the top. The operator rotates the rotating rod 520 90 degrees counterclockwise to rotate the filter screen portion 10 on the left side to the horizontal direction and the filter screen portion 10 on the right side to the horizontal direction. The movement is longitudinal, the filter part 10 is adsorbed and fixed to the magnetic strip ring 515 to realize the replacement of the filter part 10, the pressure pump 9 pumps water through the connecting pipe 61, and the water is discharged through the outlet pipe 1 62 and the outlet pipe 2 67. The reaction force of the side nozzle 64 spraying water drives the lower disk 63 to rotate, and the lower nozzle 65 sprays water to reduce dust inside the dust collecting box 7. The water inside the outlet pipe 2 67 enters the upper disk 68, and the upper nozzle 610 sprays water to clean the unused filter part 10, and the rotation of the lower disk 63 drives the push rod 66 to rotate, and the rotation of the push rod 66 drives the connecting block 69 to rotate, so that the upper disk 68 and the upper nozzle 610 can also rotate, and by reducing the number of the upper nozzles 610, the water spraying and flushing pressure of the upper nozzles 610 is increased, thereby improving the flushing effect of the filter part 10.

[0072] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0073] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation device for coal mine operation, comprising a pipe (1) and a filter part (10), wherein a sleeve (2) is fixedly connected to the outside of the pipe (1), a mounting plate (3) is fixedly connected to the top of the sleeve (2), and bolts are installed inside the mounting plate (3); It is characterized in that Also includes: An air inlet cover (4) is fixedly mounted on one end of the pipe (1); a cleaning assembly (5) is provided on one side of the interior of the pipe (1); a dust collecting box (7) is fixedly connected to one side of the bottom of the pipe (1); a spray assembly (6) is provided inside the dust collecting box (7); The bottom of the dust collecting box (7) is fixedly connected to a water box (8), a pressure pump (9) is symmetrically fixedly installed on one side of the back of the water box (8), an air inlet cylinder (11) is fixedly installed on one side of the interior of the pipe (1), a driving motor (12) is fixedly installed on one side of the interior of the air inlet cylinder (11), and an output end of the driving motor (12) is fixedly connected to an air inlet fan blade (13); The cleaning assembly (5) comprises a fixing plate (51), the fixing plate (51) being fixedly connected to the inner wall of the pipe (1), the filter screen portion (10) being mounted in the middle of the fixing plate (51), the filter screen portion (10) comprising two L-shaped portions, a servo motor (52) being fixedly mounted on the inner wall of the pipe (1), a screw rod (53) being fixedly connected to the output end of the servo motor (52), the top end of the screw rod (53) being fixedly connected to the inner top surface of the pipe (1), a limiting rod (54) being mounted on a side of the fixing plate (51) away from the servo motor (52), and a threaded sleeve (55) being sleeved on the outer side of the screw rod (53); The outer side of the limiting rod (54) is slidably connected to a sliding sleeve (57), a connecting plate (56) is fixedly connected between the threaded sleeve (55) and the sliding sleeve (57), the connecting plate (56) is slidably mounted on the fixed plate (51), and scraping plates (59) are symmetrically mounted on both sides of the fixed plate (51), one side of the scraping plate (59) is fixedly connected to the threaded sleeve (55), and the other side of the scraping plate (59) is fixedly connected to the sliding sleeve (57); A transverse groove (510) is provided on a side of the scraper plate (59) close to the filter screen portion (10); an inner scraper plate (511) is slidably mounted inside the transverse groove (510); a return spring (512) is fixedly connected to one side of the interior of the transverse groove (510); one end of the return spring (512) is fixedly connected to the inner scraper plate (511); and a bevel block (513) is fixedly connected to the side of the inner scraper plate (511) away from the return spring (512); The outer side of the fixed plate (51) is symmetrically fixedly connected with an extrusion block (514), the inner side of the fixed plate (51) is rotatably mounted with a vertical rod (516), the top of the vertical rod (516) is fixedly connected with a driven wheel (517), the top of the pipeline (1) is rotatably connected with a driving wheel (518), a belt (519) is sleeved between the driving wheel (518) and the driven wheel (517), and the top of the driving wheel (518) is fixedly connected with a rotating rod (520); The spray assembly (6) comprises a connecting pipe (61), one end of which is connected to a water tank (8), the other end of which is connected to an inlet end of a pressure pump (9), the outlet end of which is respectively connected to a water outlet pipe 1 (62) and a water outlet pipe 2 (67), the end of which is away from the pressure pump (9) is connected to a lower plate (63), and a side spray head (64) is installed on the outer side of the lower plate (63); The end of the second water outlet pipe (67) away from the pressure pump (9) is connected to an upper disk body (68), the side of the lower disk body (63) away from the first water outlet pipe (62) is equipped with a lower nozzle (65), and the side of the upper disk body (68) away from the second water outlet pipe (67) is equipped with an upper nozzle (610).

2. A ventilation device for coal mine operation according to claim 1, characterized in that: The spray assembly (6) comprises two groups that are symmetrically arranged, the air inlet fan blades (13) are located between the air inlet cover (4) and the drive motor (12), the fixed plate (51) is located on a side of the air inlet cylinder (11) away from the air inlet cover (4), the servo motor (52) is located on one side of the fixed plate (51), and the top and bottom ends of the limit rod (54) are fixedly connected to the inner wall of the pipe (1).

3. A ventilation device for coal mine operation according to claim 2, characterized in that: A vertical groove (58) is provided on the other side of the interior of the fixing plate (51), the connecting plate (56) is located inside the vertical groove (58), the connecting plate (56) is slidably connected to the vertical groove (58), and the scraping plate (59) is in contact with the filter part (10).

4. A ventilation device for coal mine operation according to claim 1, characterized in that: The inner scraper (511) is fitted with the filter screen portion (10), the top and bottom of the inclined block (513) are both provided with inclined surfaces, and the extrusion blocks (514) are evenly arranged from top to bottom.

5. A ventilation device for coal mine operation according to claim 4, characterized in that: A circular hole is provided in the middle of the fixed plate (51), a magnetic stripe ring (515) is fixedly connected to the inner wall of the circular hole, the filter part (10) is snap-connected with the magnetic stripe ring (515), and the magnetic stripe ring (515) and the filter part (10) are adsorbed to each other.

6. A ventilation device for coal mine operation according to claim 5, characterized in that: The driven wheel (517) is located at the top of the pipeline (1), and an identification block is fixedly connected to the outer side of the rotating rod (520), and the identification block is arranged in an L shape.

7. A ventilation device for coal mine operation according to claim 1, characterized in that: The lower plate (63) is located inside the dust collecting box (7), the pipeline (1) is connected to the inside of the dust collecting box (7), the lower plate (63) is connected to the water outlet pipe (62), and the lower plate (63) and the water outlet pipe (62) are rotatably installed, and the side nozzles (64) are arranged in an array.

8. A ventilation device for coal mine operation according to claim 7, characterized in that: The lower nozzle (65) is located inside the dust collecting box (7), and a push rod (66) is fixedly connected to one side of the lower plate (63) close to the water outlet pipe (62). The push rods (66) are arranged in an array, and the number of the push rods (66) is no less than six.

9. A ventilation device for coal mine operation according to claim 8, characterized in that: The upper disk body (68) is connected to the second water outlet pipe (67), and the upper disk body (68) and the second water outlet pipe (67) are rotatably installed. The outer side of the upper disk body (68) is fixedly connected with a connecting block (69), and the connecting blocks (69) are arranged in an array. The connecting blocks (69) and the push rod (66) are arranged at intervals. An upper nozzle (610) is fixedly installed on the side of the upper disk body (68) away from the second water outlet pipe (67), and the upper nozzle (610) is arranged in a vertical row.

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