A pulse bag filter with low operating noise for use down a well

Abstract

The application discloses a pulse bag type dust collector with small operation noise for underground use, which comprises a dust removal box, and a mounting plate is used for dividing the inside of the dust removal box into a fan placing area and a dust removal area; a fan mechanism is mounted in the fan placing area; a noise reduction air inlet pipe is connected to the air inlet of the fan mechanism, and the other end of the noise reduction air inlet pipe penetrates to the outside of the dust removal box; a plurality of groups of filter bag dust removal frames are mounted on one side of the uniform air mechanism; and cleaning mechanisms are arranged on the outside of the filter bag dust removal frames. The pulse bag type dust collector with small operation noise for underground use is used for solving the problem of large noise during the use of the existing pulse bag type dust collector. The fan mechanism is placed in the box body, the inside wall of the box body is sequentially covered with a sound insulation layer and a sound absorption layer, the sound insulation layer and the sound absorption layer can reduce the transmission of the noise in the box body to the outside of the dust removal box, the noise reduction air inlet pipe is connected to the air inlet of the fan mechanism, and the other end of the noise reduction air inlet pipe penetrates to the outside of the dust removal box.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bag type dust collector, in particular to a pulse bag type dust collector with low operation noise for underground use. BACKGROUND

[0002] A large amount of dust and harmful gas is generated during underground mining of coal mines, and the dust of the coal mine is mainly composed of ore particles and other powdery substances. If the underground workers inhale such dust for a long time, it will cause great harm to the human body. Therefore, the use of dust collectors is gradually popularizing. The bag type dust collector is a dry dust filtering device, which is suitable for capturing fine, dry and non-fibrous dust. The pulse bag type dust collector is a new type of high-efficiency pulse bag type dust collector improved on the basis of the bag type dust collector.

[0003] After searching, it is found that the pulse bag type dust collector with publication number CN207822682U contains a motor, a fan, a base, a drain pipe, a gas pocket, a pulse valve, a compressed air input pipe, an upper box body, an access door, a lower box body, a spiral conveyor, a discharge motor, a dust discharge valve, a filter bag and a bag cage, a dust discharge port and a transmission device. The motor is connected with the fan through the transmission device. The motor and the fan are arranged above the base. The fan is connected with the filter bag and the bag cage. The top of the filter bag and the bag cage is provided with the gas pocket. The pulse valve is arranged above the gas pocket. The drain pipe and the compressed air input pipe are arranged at the bottom of the gas pocket. The access door is arranged in the middle of the upper box body. The lower box body is arranged at the bottom of the upper box body. The spiral conveyor is arranged between the discharge motor and the dust discharge valve. The dust filtering effect of the present application is good, the vibration effect is good, the dust can be concentrated and recycled, and then discharged through the machine, realizing the controllable and easy operation of dust recycling.

[0004] The above-mentioned pulse bag type dust collector can concentrate and recycle dust, and then discharge it through the machine, realizing the controllable and easy operation of dust recycling. However, the above-mentioned pulse bag type dust collector has a large noise during dust removal, and the above-mentioned pulse bag type dust collector is not convenient to move underground. Therefore, a pulse bag type dust collector with low operation noise for underground use is proposed to solve the above-mentioned problems. SUMMARY

[0005] The present application aims to provide a pulse bag type dust collector with low operation noise for underground use, to solve the problems of the existing pulse bag type dust collector with large noise during use and the inconvenience of moving the pulse bag type dust collector underground in the background art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a pulsed bag type dust collector with small operation noise used underground, comprising a trolley mechanism, trolley fixing mechanisms are installed on both sides of the trolley mechanism, a dust collecting box is arranged above the trolley mechanism, a dust inlet at the top of the dust collecting box is communicated with the pulsed bag type dust collector, the pulsed bag type dust collector comprises a dust removal box, and a mounting plate is arranged inside the dust removal box, the inside of the dust removal box is divided into a fan placement area and a dust removal area from top to bottom by the mounting plate, a fan mechanism is installed inside the fan placement area, a noise reduction air inlet pipe is connected to the air inlet of the fan mechanism, and the other end of the noise reduction air inlet pipe penetrates to the outside of the dust removal box, the air outlet of the fan mechanism is connected to an air uniformization mechanism arranged inside the dust removal area through a gas conveying pipe, and a plurality of groups of filter bag dust removal frames are installed on one side of the air uniformization mechanism, and a cleaning mechanism is arranged outside the filter bag dust removal frames.

[0007] Preferably, the dust removal box comprises a box body, and the inner wall of the box body is covered with a sound insulation layer and an acoustic absorption layer in sequence, the sound insulation layer comprises sound insulation damping felt and a plurality of hollow acoustic absorption balls wrapped in the sound insulation damping felt, and the acoustic absorption layer is composed of gradient acoustic absorption cotton.

[0008] By adopting the above technical scheme, the noise inside the dust removal box is absorbed.

[0009] Preferably, a dust outlet is formed in the bottom of the dust removal box, the size of the dust outlet is matched with the size of the dust inlet of the dust collecting box, hollow plates are installed on the upper and lower sides of the dust outlet, and a movable sealing plate is arranged inside the two groups of hollow plates, sealing blocks are arranged at the edges of the movable sealing plate, and a clamping groove matched with the sealing blocks is formed in the inside of the dust removal box.

[0010] By adopting the above technical scheme, the dust is conveniently introduced into the inside of the dust collecting box.

[0011] Preferably, the noise reduction air inlet pipe comprises an air inlet pipe body, and the inner wall of the air inlet pipe body is covered with a polyester film, sound insulation cotton, kraft paper layer and aluminum foil layer in sequence.

[0012] By adopting the above technical scheme, the noise generated when the air enters the noise reduction air inlet pipe is reduced.

[0013] Preferably, a hollow mesh is arranged inside the end of the noise reduction air inlet pipe away from the fan mechanism.

[0014] By adopting the above technical scheme, foreign matters are prevented from entering the noise reduction air inlet pipe.

[0015] Preferably, the air uniformization mechanism comprises an air uniformization plate, the air uniformization plate is connected to the gas conveying pipe, and a plurality of groups of air uniformization nozzles are installed outside the air uniformization plate.

[0016] By adopting the above technical scheme, the gas is prevented from being concentrated in one place.

[0017] Preferably, the cleaning mechanism comprises a fixed cover connected to the outside of the box, a rotating rod is installed inside the fixed cover, one end of the rotating rod is connected to the output end of the motor, a plurality of first helical gears are installed on the outside of the rotating rod, the first helical gears are meshed with second helical gears, a screw rod mechanism is connected inside the second helical gears, one end of the screw rod mechanism extends into the box and rotates in the bearing installed inside the box, a cleaning brush is connected to the outside of the screw rod mechanism, the size of the cleaning brush matches the size of the filter bag dust removal frame, and the brush head in the cleaning brush is in close contact with the outside of the filter bag dust removal frame.

[0018] By adopting the above technical scheme, the dust on the outside of the filter bag dust removal frame can be easily cleaned.

[0019] Preferably, a noise reduction air outlet pipe is installed on the dust removal area, the structure of the air outlet pipe body in the noise reduction air outlet pipe is the same as that of the air inlet pipe body, a speed reduction mechanism is installed inside one end of the noise reduction air outlet pipe close to the dust removal area, the speed reduction mechanism comprises a speed reduction plate connected to the inner wall of the noise reduction air outlet pipe, a connecting plate is fixedly connected to the inner wall of the speed reduction plate, and a plurality of ventilation holes are formed in the inside of the connecting plate.

[0020] By adopting the above technical scheme, the wind speed when the wind enters the inside of the noise reduction air outlet pipe is reduced.

[0021] Preferably, the trolley fixing mechanism comprises a fixed plate connected to one side of the trolley mechanism, a moving rod penetrates through the inside of the fixed plate, a threaded rod is screw-connected to the inside of the moving rod, the top of the threaded rod is connected to the handlebar, and a fixed disc is installed at the bottom of the moving rod, and a plurality of fixed nails are arranged below the fixed disc.

[0022] By adopting the above technical scheme, the position of the pulse bag type dust collector can be easily limited.

[0023] Compared with the prior art, the beneficial effects of the present application are that the pulse bag type dust collector is small in noise during underground use and operation,

[0024] (1) The device is used to solve the problem of large noise during the use of the existing pulse bag type dust collector. The fan mechanism is placed inside the box, and the inner wall of the box is covered with a sound insulation layer and an acoustic absorption layer in sequence. The sound insulation layer and the acoustic absorption layer can reduce the noise transmission from the inside of the box to the outside of the dust removal box. The air inlet of the fan mechanism is connected with a noise reduction air inlet pipe, and the other end of the noise reduction air inlet pipe penetrates to the outside of the dust removal box. The noise reduction air inlet pipe can reduce the noise generated by the flow of gas entering the pipeline. A noise reduction air outlet pipe is installed on the dust removal area. The structure of the air outlet pipe body in the noise reduction air outlet pipe is the same as that of the air inlet pipe body. A speed reduction mechanism is installed inside one end of the noise reduction air outlet pipe close to the dust removal area. The noise reduction air outlet pipe can reduce the noise generated by the flow of gas out of the pipeline. The speed reduction mechanism can reduce the wind speed, thereby reducing the noise generated by the flow of wind.

[0025] (2) The device is used for solving the problem of inconvenient movement of the existing pulse bag type dust collector in the underground mine. The dust collecting box is connected with the trolley mechanism, and the pulse bag type dust collector is installed on the top of the dust collecting box. The trolley mechanism can be pushed to drive the pulse bag type dust collector to move, so that the pulse bag type dust collector is more suitable for use in the underground mine.

[0026] (3) The device is used for solving the problem of inconvenient position fixation of the pulse bag type dust collector when the pulse bag type dust collector does not need to move. The trolley fixing mechanism is installed on both sides of the trolley mechanism. When the position of the pulse bag type dust collector needs to be fixed, the handle is held and rotated to drive the threaded rod to rotate under the action of the rotating handle. The moving rod drives the fixing disc to move downward under the action of the rotating threaded rod, until the fixing nails below the fixing disc are completely inserted into the ground, so that the position of the trolley mechanism is limited, and the position of the pulse bag type dust collector is limited.

[0027] (4) The device is used for solving the problem that the existing pulse bag type dust collector does not have a dust cleaning function. The cleaning mechanism is arranged outside the filter bag dust removal frame, and the dust removal box is provided with a dust outlet. The upper and lower sides of the dust outlet are provided with hollow plates, and the inner sides of the two groups of hollow plates are provided with moving sealing plates. When the dust on the filter bag dust removal frame needs to be cleaned, the moving sealing plates are pulled out, and the motor is started. The first bevel gear is driven to rotate by the rotating handle under the action of the motor, so that the second bevel gear is synchronously rotated. The screw rod mechanism is rotated under the action of the rotating second bevel gear, so that the cleaning brush moves outside the screw rod mechanism. At this time, the brush head in the cleaning brush brushes back and forth outside the filter bag dust removal frame, so that the dust outside the filter bag dust removal frame falls into the dust collecting box through the dust outlet. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole front view cross-sectional structure schematic view of the present application;

[0029] Figure 2 It is a whole side view cross-sectional structure schematic view of the present application;

[0030] Figure 3 It is a trolley fixing mechanism structure schematic view of the present application;

[0031] Figure 4 It is a sound insulation layer and sound absorption layer structure schematic view of the present application;

[0032] Figure 5 It is an enlarged structure schematic view of A of the present application;

[0033] Figure 6 It is an air inlet pipe body structure schematic view of the present application;

[0034] Figure 7 It is an enlarged structure schematic view of B of the present application;

[0035] Figure 8 It is a schematic diagram of the amplification structure of the application C;

[0036] Figure 9 It is a schematic diagram of the cleaning mechanism structure of the application;

[0037] Figure 10 It is a schematic diagram of the speed reduction mechanism structure of the application.

[0038] In the figure: 1, trolley mechanism; 2, trolley fixing mechanism; 201, fixed plate; 202, moving rod; 203, threaded rod; 204, handlebar; 205, fixed disc; 3, ash collection box; 4, pulse bag type dust collector; 401, dust removal box; 4011, box body; 4012, sound insulation layer; 4013, sound absorption layer; 4014, sound insulation damping felt; 4015, hollow sound absorption ball; 4016, hollow plate; 4017, moving sealing plate; 402, mounting plate; 403, fan mechanism; 404, noise reduction air inlet pipe; 4041, air inlet pipe body; 4042, polyester film; 4043, sound insulation cotton; 4044, kraft paper layer; 4045, aluminum foil layer; 4046, hollow mesh; 405, air supply pipe; 406, air uniformization mechanism; 4061, air uniformization plate; 4062, air uniformization nozzle; 407, filter bag dust removal frame; 408, cleaning mechanism; 4081, fixed cover; 4082, rotating rod; 4083, motor; 4084, first helical gear; 4085, second helical gear; 4086, screw rod mechanism; 4087, cleaning brush; 409, noise reduction air outlet pipe; 4091, speed reduction mechanism; 4092, speed reduction plate; 4093, connecting plate; 4094, ventilation hole. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0040] Please refer to Figures 1-10 The application provides a technical solution: a pulse bag type dust collector with small operation noise used underground, according to Figures 1-3 As shown in the figure, the trolley mechanism 1 is provided with a trolley fixing mechanism 2 on both sides.

[0041] In further embodiments, the trolley mechanism 1 comprises a bottom plate, and a handle is installed on one side of the bottom plate, and a pulley is symmetrically installed below the bottom plate.

[0042] Specifically, the trolley fixing mechanism 2 comprises a fixing plate 201, one side of which is connected with the outer side of the bottom plate, and a moving rod 202 is penetrated through the inside of the fixing plate 201, a threaded rod 203 is threadedly connected with the inside of the moving rod 202, the top of the threaded rod 203 is connected with a handle 204, and a fixing disc 205 is installed at the bottom of the moving rod 202, and a plurality of groups of fixing nails are arranged below the fixing disc 205.

[0043] In a further embodiment, by connecting the dust collecting box 3 with the trolley mechanism 1, and installing the pulse bag type dust collector 4 at the top of the dust collecting box 3, the pulse bag type dust collector 4 can be moved by pushing the trolley mechanism 1, so that it is more suitable for use in the underground.

[0044] When it is necessary to fix the position of the pulse bag type dust collector 4, the handle 204 is held and rotated, so that the handle 204 drives the threaded rod 203 to rotate, and under the action of the rotation of the threaded rod 203, the moving rod 202 drives the fixing disc 205 to move downward until the fixing nails below the fixing disc 205 are completely inserted into the ground, so that the position of the trolley mechanism 1 is limited, and thus the position of the pulse bag type dust collector 4 is limited.

[0045] According to Figures 1-2 and Figures 4-10 , the dust collecting box 3 is arranged above the trolley mechanism 1, and the top dust inlet of the dust collecting box 3 is in communication with the pulse bag type dust collector 4.

[0046] Specifically, the pulse bag type dust collector 4 comprises a dust removal box 401, and the inside of the dust removal box 401 is provided with a mounting plate 402, which divides the inside of the dust removal box 401 from top to bottom into a fan placing area and a dust removal area, and the fan placing area is provided with a fan mechanism 403.

[0047] In a further embodiment, the fan mechanism 403 is placed in the dust removal box 401 to absorb and block the noise generated by the operation of the fan mechanism 403 to a certain extent, and the fan mechanism 403 is a prior art and will not be described in detail.

[0048] In a further embodiment, the dust removal box 401 comprises a box body 4011, and the inner wall of the box body 4011 is successively covered with a sound insulation layer 4012 and an acoustic absorption layer 4013, the sound insulation layer 4012 comprises sound insulation damping felt 4014 and a plurality of hollow acoustic absorption balls 4015 wrapped in the sound insulation damping felt 4014, and the acoustic absorption layer 4013 is composed of gradient acoustic absorption cotton.

[0049] In use, the noise in the box 4011 is preliminarily absorbed by the gradient sound-absorbing cotton, and then enters the sound insulation layer 4012 through the sound-absorbing layer 4013, and the remaining sound is further absorbed and reflected by the plurality of hollow sound-absorbing balls 4015, so that the sound is weakened, and the remaining sound is difficult to pass through the sound insulation damping felt 4014 and the box 4011 to the outside, thereby reducing the influence of the noise generated in the box 4011 on the outside.

[0050] In a further embodiment, the dust removal box 401 is provided with a dust outlet at the bottom, the size of the dust outlet matches the size of the dust inlet of the dust collecting box 3, and the upper and lower sides of the dust outlet are provided with hollow plates 4016. The inner sides of the two groups of hollow plates 4016 are provided with movable sealing plates 4017, which are detachably connected with the dust removal box 401. The movable sealing plates 4017 are provided with sealing blocks at the edges, and the dust removal box 401 is provided with a clamping groove matched with the sealing blocks. The sealing blocks can improve the sealing performance of the movable sealing plates 4017 when they are closed.

[0051] Specifically, the fan mechanism 403 is connected with a noise reduction air inlet pipe 404 at the air inlet, and the other end of the noise reduction air inlet pipe 404 penetrates to the outside of the dust removal box 401.

[0052] In a further embodiment, the noise reduction air inlet pipe 404 includes an air inlet pipe body 4041, and the inner wall of the air inlet pipe body 4041 is successively covered with a polyester film 4042, sound insulation cotton 4043, kraft paper layer 4044 and aluminum foil layer 4045.

[0053] In a further embodiment, the aluminum foil layer 4045 can effectively reduce the friction in the air inlet pipe body 4041, facilitate the rapid flow of air, effectively weaken the noise generated by the micro friction between the high-speed air flow and the inner wall of the air inlet pipe body 4041, and the kraft paper layer 4044 can preliminarily absorb and reduce noise, and the sound insulation cotton 4043 can further absorb noise, and the polyester film 4042 has excellent rigidity, hardness and toughness, and has the advantages of puncture resistance, friction resistance, high temperature resistance, good air tightness and the like.

[0054] In a further embodiment, the noise reduction air inlet pipe 404 is provided with a hollow mesh 4046 inside the end away from the fan mechanism 403, which can prevent foreign matters from entering the inside of the noise reduction air inlet pipe 404 and play a certain protective role for the fan mechanism 403.

[0055] Specifically, the air outlet of the fan mechanism 403 is connected with the air distribution mechanism 406 provided inside the dust removal area through the air supply pipe 405.

[0056] In a further embodiment, the air distribution mechanism 406 includes an air distribution plate 4061, and the air distribution plate 4061 is connected with the air supply pipe 405, and a plurality of air distribution nozzles 4062 are installed on the outer side of the air distribution plate 4061.

[0057] In further embodiments, air enters the inside of the air uniformization plate 4061 through the air feeding pipe 405 under the action of the fan mechanism 403, and is finally sprayed out from the air uniformization nozzle 4062. The air uniformization mechanism 406 can avoid the gathering of gas in one place, which can weaken the dust removal effect. At the same time, the air uniformization mechanism 406 can reduce the gas flow speed, thereby playing a certain effect on noise reduction.

[0058] Specifically, a plurality of sets of filter bag dust removal frames 407 are installed on one side of the air uniformization mechanism 406, and a cleaning mechanism 408 is arranged outside the filter bag dust removal frame 407.

[0059] In further embodiments, the filter bag dust removal frame 407 comprises a fixed frame connected to the inside of the dust removal area, and a dust removal filter bag is wrapped outside the fixed frame.

[0060] In further embodiments, the cleaning mechanism 408 comprises a fixed cover 4081 connected to the outside of the box body 4011, a rotating rod 4082 is installed inside the fixed cover 4081, one end of the rotating rod 4082 is connected to the output end of a motor 4083, a plurality of sets of first helical gears 4084 are installed outside the rotating rod 4082, the first helical gears 4084 are engaged with second helical gears 4085, a lead screw mechanism 4086 is connected inside the second helical gears 4085, one end of the lead screw mechanism 4086 is rotatably arranged inside the bearing installed inside the box body 4011 inside the box body 4011, a cleaning brush 4087 is connected outside the lead screw mechanism 4086, the size of the cleaning brush 4087 matches the size of the filter bag dust removal frame 407, and the brush head in the cleaning brush 4087 is in close contact with the outside of the filter bag dust removal frame 407.

[0061] When it is necessary to clean the dust on the filter bag dust removal frame 407, the movable sealing plate 4017 is pulled out, and the motor 4083 is turned on. Under the action of the motor 4083, the rotating rod 4082 drives the first helical gears 4084 to rotate, so that the second helical gears 4085 rotate synchronously. Under the action of the rotation of the second helical gears 4085, the lead screw mechanism 4086 rotates, so that the cleaning brush 4087 moves outside the lead screw mechanism 4086. At this time, the brush head in the cleaning brush 4087 brushes back and forth outside the filter bag dust removal frame 407, so that the dust outside the filter bag dust removal frame 407 falls through the dust outlet into the inside of the dust collecting box 3. A cleaning port for cleaning dust is arranged on one side of the dust collecting box 3.

[0062] Specifically, the dust removal area is provided with a noise reduction air outlet pipe 409, the structure of the air outlet pipe body in the noise reduction air outlet pipe 409 is the same as that of the air inlet pipe body 4041, a speed reduction mechanism 4091 is internally arranged at one end of the noise reduction air outlet pipe 409 close to the dust removal area, the speed reduction mechanism 4091 comprises a speed reduction plate 4092, the speed reduction plate 4092 is connected with the inner wall of the noise reduction air outlet pipe 409, a connecting plate 4093 is fixedly connected to the inner wall of the speed reduction plate 4092, and a plurality of groups of ventilation holes 4094 are formed in the connecting plate 4093.

[0063] In a further embodiment, the speed reduction mechanism 4091 is internally arranged at one end of the noise reduction air outlet pipe 409 close to the dust removal area, so that the wind speed when the wind enters the noise reduction air outlet pipe 409 can be reduced, thereby reducing the noise generated by the wind.

[0064] The terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is a simplified description for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection scope of the present application.

[0065] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pulse bag filter for underground use with low operating noise, comprising a trolley mechanism (1), trolley fixing mechanisms (2) installed on both sides of the trolley mechanism (1), and a dust collection box (3) provided above the trolley mechanism (1), wherein the dust inlet at the top of the dust collection box (3) is connected to the pulse bag filter (4), characterized in that: The pulse bag dust collector (4) comprises a dust removal box (401), and a mounting plate (402) is arranged in the dust removal box (401), the mounting plate (402) divides the dust removal box (401) into a fan placing area and a dust removal area from top to bottom, a fan mechanism (403) is arranged in the fan placing area, a noise reduction air inlet pipe (404) is connected to an air inlet of the fan mechanism (403), and the other end of the noise reduction air inlet pipe (404) penetrates to the outside of the dust removal box (401), an air outlet of the fan mechanism (403) is connected to an air uniformization mechanism (406) arranged in the dust removal area through a gas conveying pipe (405), a plurality of groups of filter bag dust removal frames (407) are arranged on one side of the air uniformization mechanism (406), and a cleaning mechanism (408) is arranged on the outside of the filter bag dust removal frame (407), the dust removal box (401) comprises a box body (4011), and the inner wall of the box body (4011) is covered with a sound insulation layer (4012) and an acoustic absorption layer (4013) in sequence, the sound insulation layer (4012) comprises sound insulation damping felt (4014) and a plurality of hollow acoustic absorption balls (4015) wrapped in the sound insulation damping felt (4014), the acoustic absorption layer (4013) is composed of gradient acoustic absorption cotton, a noise reduction air outlet pipe (409) is arranged on the dust removal area, the air outlet pipe body structure in the noise reduction air outlet pipe (409) is same as the air inlet pipe body (4041) structure, a speed reduction mechanism (4091) is arranged in the noise reduction air outlet pipe (409) close to the dust removal area, the speed reduction mechanism (4091) comprises a speed reduction plate (4092), the speed reduction plate (4092) is connected with the inner wall of the noise reduction air outlet pipe (409), and the inner wall of the speed reduction plate (4092) is fixedly connected with a connecting plate (4093), a plurality of groups of ventilation holes (4094) are arranged in the connecting plate (4093). The trolley fixing mechanism (2) comprises a fixing plate (201), one side of the fixing plate (201) is connected with a trolley mechanism (1), a moving rod (202) penetrates through the fixing plate (201), a threaded rod (203) is threadedly connected to the moving rod (202), a handle (204) is connected to the top of the threaded rod (203), a fixing disc (205) is arranged at the bottom of the moving rod (202), and a plurality of groups of fixing nails are arranged below the fixing disc (205). The cleaning mechanism (408) comprises a fixed cover (4081), the fixed cover (4081) is connected with the outside of the box (4011), a rotating rod (4082) is installed in the fixed cover (4081), one end of the rotating rod (4082) is connected with the output end of a motor (4083), a plurality of groups of first helical gears (4084) are installed on the outside of the rotating rod (4082), the first helical gears (4084) are engaged with second helical gears (4085), a lead screw mechanism (4086) is connected in the second helical gears (4085), one end of the lead screw mechanism (4086) extends into the inside of the box (4011) and rotates in the bearing installed in the inside of the box (4011), a cleaning brush (4087) is connected on the outside of the lead screw mechanism (4086), the size of the cleaning brush (4087) is matched with the size of the filter bag dust removal frame (407), and the brush head in the cleaning brush (4087) is tightly attached to the outside of the filter bag dust removal frame (407); The noise reduction intake pipe (404) comprises an intake pipe body (4041), and the inner wall of the intake pipe body (4041) is covered with a polyester film (4042), sound insulation cotton (4043), a kraft paper layer (4044) and an aluminum foil layer (4045) in sequence, the air uniformizing mechanism (406) comprises an air uniformizing plate (4061), and the air uniformizing plate (4061) is connected with the air feeding pipe (405), a plurality of groups of air uniformizing nozzles (4062) are installed on the outside of the air uniformizing plate (4061).

2. A pulse baghouse filter for use down a well with low operational noise according to claim 1, wherein: The dust removal box (401) is provided with a dust outlet at the bottom, the size of the dust outlet is matched with the size of the dust inlet of the dust collecting box (3), hollow plates (4016) are installed on the upper and lower sides of the dust outlet, movable sealing plates (4017) are arranged on the inner sides of the two groups of hollow plates (4016), sealing blocks are arranged on the edges of the movable sealing plates (4017), and clamping grooves matched with the sealing blocks are formed in the inside of the dust removal box (401).

3. A pulse baghouse filter for use down a well with low operational noise according to claim 2, wherein: The noise reduction intake pipe (404) is provided with a hollow net (4046) in the inside of the end away from the fan mechanism (403).

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