CN210385136U - Tail gas filter dust shaker - Google Patents

Abstract

The utility model discloses a tail gas filter dust shaker, its technical scheme main points are including the frame, a place board for placing the filter, set up in the dust removal subassembly of place board top, set up in the dust collection subassembly of place board below and be used for driving the removal subassembly that the dust removal subassembly removed, dust collection subassembly and removal subassembly are all installed in the frame, the dust removal unit mount is on removing the subassembly, place board level is fixed in the frame, be provided with the through-hole on the place board, the dust removal subassembly is including the air cock, drive the wobbling swing driving piece of air cock and be fixed in the mount pad on the removal subassembly, the swing driving piece is fixed in on the mount pad, and be fixed with first swing arm on the swing driving piece, it has the second swing arm to articulate on the mount pad, the air cock is fixed in on the second swing arm, first swing arm passes through the connecting. The dust remover can be used for removing dust and ash of a filter, and has a good cleaning effect.

Description

Tail gas filter dust shaker

Technical Field

The utility model relates to a dust collecting equipment field, more specifically the utility model relates to a tail gas filter dust shaker that says so.

Background

The filter is widely used in life, for example, the filter is required to be installed on an automobile exhaust emission device to filter exhaust, and the filter is required to remove dust and ash after being used for a long time so as to prevent impurities such as dust from blocking filter holes and influencing exhaust emission. The dust removal deashing of filter is comparatively difficult, and artifical clearance is not only consuming time power, and the clearance effect is poor, lacks the equipment that is used for the dust removal deashing to the filter in the existing market.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a tail gas filter dust shaker, this dust shaker can be used for the dust removal deashing to the filter, and it is effectual to clear up.

In order to achieve the above purpose, the utility model provides a following technical scheme: a tail gas filter dust remover comprises a frame, a setting plate for placing a filter, a dust removal component arranged above the setting plate, a dust collection component arranged below the setting plate, and a moving component for driving the dust removal component to move, wherein the dust collection component and the moving component are both arranged on the frame, the dust removal component is arranged on the moving component, the setting plate is horizontally fixed on the frame, a through hole for dust to enter the dust collection component is arranged on the setting plate, the dust removal component comprises an air nozzle, a swing driving part for driving the air nozzle to swing and a mounting seat fixed on the moving component, the swing driving part is fixed on the mounting seat, a first swing arm is fixed on the swing driving part, a second swing arm is hinged on the mounting seat, the air nozzle is fixed on the second swing arm, and the first swing arm is connected with the second swing arm through a connecting rod, the connecting rod is articulated with first swing arm and second swing arm junction, under first drive assembly drove first swing arm rotation state, the second swing arm drove the reciprocal swing of air cock.

As a further improvement of the utility model, the moving assembly comprises an X-axis slide fixing seat, a Y-axis slide fixing seat, a Z-axis slide fixing seat, an X-axis slide rail fixed on the X-axis slide fixing seat, a Y-axis slide rail fixed on the Y-axis slide fixing seat, and a Z-axis slide rail fixed on the Z-axis slide fixing seat, wherein the X-axis slide fixing seat is fixed on the frame, the Y-axis slide fixing seat is connected on the X-axis slide rail in a sliding manner, the Z-axis slide fixing seat is connected on the Y-axis slide rail in a sliding manner, the mounting seat is connected on the Z-axis slide rail in a sliding manner, driving wheels are arranged at both ends of the X-axis slide rail, a driving belt is connected between the driving wheels and is fixedly connected with the Y-axis slide fixing seat, an X-axis driving piece for driving the driving wheels to rotate is further arranged on the X-axis slide fixing seat, the length direction of Y axle lead screw is unanimous with the length direction of Y axle slide rail, just Y axle lead screw and Z axle slide fixing base spiro union, be provided with Z axle lead screw on the Z axle slide fixing base and be used for driving Z axle lead screw pivoted Z axle driving piece, the length direction of Z axle lead screw is unanimous with the length direction of Z axle slide rail, just Z axle lead screw and mount pad spiro union.

As a further improvement, the Y-axis slide rail with the Z-axis slide rail all is provided with two, and two Y-axis slide rail parallel arrangements are in Y-axis slide holder length direction's both sides, the Y-axis lead screw sets up between two Y-axis slide rails, and two Z-axis slide rail parallel arrangements are in Z-axis slide holder length direction's both sides, the Z-axis lead screw sets up between two Z-axis slide rails.

As the utility model discloses a further improvement, X axle slide fixing base and X axle slide rail all are provided with two, are located Y axle slide fixing base length both ends respectively, the drive wheel correspondence is provided with four, two X axle slide rail parallel arrangement, and is located and passes through connecting axle fixed connection between two drive wheels of the same end of X axle slide rail, X axle driving piece drives arbitrary one drive wheel rotation.

As a further improvement, the dust collecting component is including sealed dust collection box, be provided with the baffle in the dust collection box, the baffle is split into first collection dirt region and second collection dirt region with the dust collection box, leave the clearance between baffle upper end and the dust collection box roof, be provided with the inlet port on the roof in first collection dirt region, the inlet port switches on with the through-hole, and the projection profile of through-hole on the horizontal plane is located the projection profile of inlet port on the horizontal plane, be provided with the venthole that switches on with the dust collection box outward on the regional lateral wall of second collection dirt.

As a further improvement, the second dust collecting area is provided with a gas filter, the gas filter is arranged at the air outlet, and the gas is discharged from the air outlet after passing through the gas filter.

As a further improvement of the utility model, the dust collection box is detachably connected with the frame.

As a further improvement of the utility model, the four corners of the frame are all provided with universal wheels and a base plate with adjustable height.

The utility model has the advantages that: the filter is placed on the placing plate, the dust removal assembly is moved to a proper position above the filter by controlling the movement assembly to work, then the swinging driving piece drives the first swing arm to rotate, and the first swing arm, the connecting rod, the second swing arm and the mounting seat form a crank rocker mechanism, so that the second swing arm is driven to overturn through the connecting rod in the rotating process of the first swing arm, an air nozzle fixed on the second swing arm swings in a reciprocating mode to blow and remove dust for the filter at the moment, the dust cleaned off the filter is blown into the dust collection box through the through hole, the air nozzle swinging in a reciprocating mode can blow the filter at multiple angles, the dust on the filter can be blown off more easily, and the cleaning effect of the filter is improved; in the process of removing dust from the filter by the dust removing component, the moving component synchronously drives the dust removing component to move above the filter, so that the filtering holes in the upper end of the filter are sequentially aligned to the dust removing component, the filter can be completely removed dust, and the dust removing effect is further improved.

Drawings

FIG. 1 is a schematic perspective view of an exhaust gas filter dust remover;

FIG. 2 is a schematic perspective view of the dust removing assembly;

FIG. 3 is a schematic perspective view of the moving assembly and the dust removing assembly;

FIG. 4 is a schematic perspective view of the dust collecting assembly;

fig. 5 is a cross-sectional view of the dirt collection assembly.

Reference numerals: 1. a frame; 11. a universal wheel; 12. a foot plate; 2. placing a plate; 21. a through hole; 3. a dust removal assembly; 31. an air tap; 32. a swing drive; 33. a mounting seat; 34. a first swing arm; 35. a second swing arm; 36. a connecting rod; 4. a dust collection assembly; 41. a dust collection box; 42. a partition plate; 421. a gap; 43. a first dust collecting region; 431. an air inlet; 44. a second dust collecting region; 441. an air outlet; 442. a gas filter; 5. a moving assembly; 51. an X-axis slideway fixing seat; 511. an X-axis drive member; 52. a Y-axis slideway fixing seat; 53. a Z-axis slideway fixing seat; 54. an X-axis slide rail; 541. a driving wheel; 542. a connecting shaft; 55. a Y-axis slide rail; 551. a Y-axis lead screw; 552. a Y-axis drive member; 56. a Z-axis slide rail; 561. a Z-axis lead screw; 562. a Z-axis driving member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 and 2, the tail gas filter dust remover of the embodiment includes a frame 1, a placement plate 2 for placing a filter, a dust removing assembly 3 disposed above the placement plate 2, a dust collecting assembly 4 disposed below the placement plate 2, and a moving assembly 5 for driving the dust removing assembly 3 to move, where the dust collecting assembly 4 and the moving assembly 5 are both mounted on the frame 1, the dust removing assembly 3 is mounted on the moving assembly 5, the placement plate 2 is horizontally fixed on the frame 1, a through hole 21 for allowing dust to enter the dust collecting assembly 4 is disposed on the placement plate 2, the dust removing assembly 3 includes an air nozzle 31, a swing driving member 32 for driving the air nozzle 31 to swing, and a mounting seat 33 fixed on the moving assembly 5, the swing driving member 32 is fixed on the mounting seat 33, and a first swing arm 34 is fixed on the swing driving member 32, and a second swing arm 35 is hinged on the mounting seat 33, air cock 31 is fixed in on second swing arm 35, and first swing arm 34 passes through connecting rod 36 with second swing arm 35 to be connected, and connecting rod 36 is articulated with first swing arm 34 and second swing arm 35 junction, and under first drive assembly drove first swing arm 34 rotation state, second swing arm 35 drove air cock 31 reciprocating swing.

An electric cabinet and a control screen can be arranged on the frame 1, so that an operator can conveniently control the dust removal assembly 3 and the moving assembly 5 to work. The swing driving member 32 is a driving device capable of rotating the first swing arm 34, and a motor may be used. The air nozzle 31 is externally connected with an air source through an air pipe, so that the air nozzle 31 can spray air. In the dust removal process of the filter, an operator firstly places the filter on the placing plate 2, the filter covers the through hole 21, then the moving assembly 5 works to move the dust removal assembly 3 to a proper position above the filter, then the swinging driving piece 32 drives the first swing arm 34 to rotate, and as the first swing arm 34, the connecting rod 36, the second swing arm 35 and the mounting seat 33 form a crank rocker mechanism, the second swing arm 35 is driven to overturn through the connecting rod 36 in the rotating process of the first swing arm 34, at the moment, the air nozzle 31 fixed on the second swing arm 35 swings in a reciprocating manner to blow air and remove dust on the filter, the dust cleaned off the filter is blown into the dust collection box 41 through the through hole 21, and the air nozzle 31 swinging in a reciprocating manner can blow air on the filter at multiple angles, so that the dust on the filter can be blown off more easily, and the cleaning effect; in the dust removal process of the dust removal component 3 on the filter, the moving component 5 synchronously drives the dust removal component 3 to horizontally move above the filter, so that the filtering holes in the upper end of the filter are sequentially aligned to the dust removal component 3, the filter can be completely removed in dust, and the dust removal effect is further improved.

As an improved specific embodiment, referring to fig. 3, the moving assembly 5 includes an X-axis slide holder 51, a Y-axis slide holder 52, a Z-axis slide holder 53, an X-axis slide 54 fixed on the X-axis slide holder 51, a Y-axis slide 55 fixed on the Y-axis slide holder 52, and a Z-axis slide 56 fixed on the Z-axis slide holder 53, wherein the X-axis slide holder 51 is fixed on the frame 1, the Y-axis slide holder 52 is slidably connected to the X-axis slide 54, the Z-axis slide holder 53 is slidably connected to the Y-axis slide 55, the mounting holder 33 is slidably connected to the Z-axis slide 56, driving wheels 541 are disposed at two ends of the X-axis slide 54, a driving belt is connected between the driving wheels 541, the driving belt is fixedly connected to the Y-axis slide holder 52, an X-axis driving member 511 for driving the driving wheels 541 to rotate is further disposed on, the Y-axis slide rail fixing seat 52 is provided with a Y-axis screw 551 and a Y-axis driving part 552 for driving the Y-axis screw 551 to rotate, the length direction of the Y-axis screw 551 is consistent with that of the Y-axis slide rail 55, the Y-axis screw 551 is in threaded connection with the Z-axis slide rail fixing seat 53, the Z-axis slide rail fixing seat 53 is provided with a Z-axis screw 561 and a Z-axis driving part 562 for driving the Z-axis screw 561 to rotate, the length direction of the Z-axis screw 561 is consistent with that of the Z-axis slide rail 56, and the Z-axis screw 561 is in threaded connection with the mounting seat 33.

Each sliding connection part can adopt a dovetail groove structure. The X-axis driving unit 511, the Y-axis driving unit and the Z-axis driving unit 562 are devices capable of driving the driving wheel 541, the Y-axis screw 551 and the Z-axis screw 561 to rotate, and may be motors. When the driving wheel 541 is driven by the X-axis driving piece 511 to rotate, the driving wheel 541 drives the transmission belt to move, and the Y-axis slideway fixing seat 52 is fixedly connected with the transmission belt, so that the transmission belt drives the Y-axis slideway fixing seat 52 to slide on the X-axis slideway, and the movement of the dust removal component in the 3X-axis direction is realized; the Y-axis driving piece 552 drives the Y-axis lead screw 551 to rotate, and the Y-axis lead screw 551 is in threaded connection with the Z-axis slideway fixing seat 53, so that the Y-axis lead screw 551 drives the Z-axis slideway fixing seat 53 to slide on the Y-axis slideway 55, and the movement of the dust removing assembly 3 in the Y-axis direction is realized; the Z-axis driving member 562 drives the Z-axis lead screw 561 to rotate, and since the Z-axis lead screw 561 is screwed with the mounting base 33, the Z-axis lead screw 561 will drive the mounting base 33 to slide on the Z-axis slide rail 56, so as to realize the movement of the dust removing assembly 3 in the Z-axis direction. Through the setting of this structure, realized the ascending removal of dust removal subassembly 3X axle, Y axle, Z axle side, and the removal of all directions can go on simultaneously, simple structure is practical.

As a specific embodiment of the improvement, referring to fig. 3, two Y-axis slide rails 55 and two Z-axis slide rails 56 are provided, the two Y-axis slide rails 55 are disposed in parallel on two sides of the Y-axis slide holder 52 in the length direction, a Y-axis screw 551 is disposed between the two Y-axis slide rails 55, the two Z-axis slide rails 56 are disposed in parallel on two sides of the Z-axis slide holder 53 in the length direction, and a Z-axis screw 561 is disposed between the two Z-axis slide rails 56. The arrangement of the two Y-axis slide rails 55 and the two Z-axis slide rails 56 can improve the installation stability and the movement stability of the Z-axis slide rail fixing seat 53 and the installation seat 33.

As an improved specific embodiment, referring to fig. 3, two X-axis slide holders 51 and two X-axis slide rails 54 are respectively disposed at two ends of the length of the Y-axis slide holder 52, four driving wheels 541 are correspondingly disposed, the two X-axis slide rails 54 are disposed in parallel, the two driving wheels 541 located at the same end of the X-axis slide rails 54 are fixedly connected through a connecting shaft 542, and the X-axis driving member 511 drives any one of the driving wheels 541 to rotate. Two X axle slide fixing base 51 and two X axle slide rail 54 are located the setting at Y axle slide fixing base 52 length both ends respectively, can show the installation steadiness and the removal stationarity that improve Y axle slide fixing base 52, and the setting of connecting axle 542 and X axle driving piece 511, make X axle driving piece 511 drive the during operation of removal drive wheel 541, can transmit through drive belt and connecting axle 542 between the drive wheel 541, make each drive wheel 541 synchronous revolution, Y axle slide fixing base 52 length both ends can synchronous motion, the stress point of Y axle slide fixing base 52 has been increased, be convenient for drive Y axle slide fixing base 52 and remove, and only use the setting of an X axle driving piece 511 to reduce cost.

As an improved specific embodiment, referring to fig. 4 and 5, the dust collecting assembly 4 includes a sealed dust collecting box 41, a partition plate 42 is disposed in the dust collecting box 41, the partition plate 42 divides the dust collecting box 41 into a first dust collecting area 43 and a second dust collecting area 44, a gap 421 is left between the upper end of the partition plate 42 and the top plate of the dust collecting box 41, an air inlet hole 431 is disposed on the top plate of the first dust collecting area 43, the air inlet hole 431 is communicated with the through hole 21, a projection contour of the through hole 21 on a horizontal plane is located in a projection contour of the air inlet hole 431 on the horizontal plane, and an air outlet hole 441 communicated with the outside of the dust collecting box 41 is disposed on a side wall. Because the dust collection box 41 is arranged in a sealed manner, after the air nozzle 31 blows dust on the filter into the first dust collection area 43 through the through hole 21 and the air inlet 431, most of the dust is deposited in the first dust collection area 43, a small part of the dust enters the second dust collection area 44 through the gap 421 between the partition plate 42 and the top plate of the dust collection box 41 along with air flow, secondary deposition is carried out in the second dust collection area 44, and finally, the air is discharged through the air outlet 441.

As a modified embodiment, referring to fig. 4 and 5, a gas filter 442 is disposed in the second dust collecting region 44, the gas filter 442 is disposed at the gas outlet holes 441, and the gas passes through the gas filter 442 and is discharged from the gas outlet holes 441. The gas filter 442 is disposed to remove dust from the gas discharged from the gas outlet 441, thereby preventing the dust from polluting the environment and further improving the dust collecting effect of the dust box 41.

As a modified embodiment, referring to fig. 1, a dust box 41 is detachably connected to the housing 1. The dust box 41 and the frame 1 can be connected in a drawer-type detachable manner, and the dust box 41 can be detached from the frame 1, so that the dust accumulated in the dust box 41 can be conveniently treated.

As a modified specific embodiment, referring to FIG. 1, universal wheels 11 and a height-adjustable foot plate 12 are arranged at four corners of a frame 1. When the dust remover needs to be moved, the height of each base leg disc 12 is adjusted, so that the lower end of each base leg disc 12 is not contacted with the ground, and each universal wheel 11 is contacted with the ground at the moment, so that the dust remover is convenient to move; when the dust shaker removed the assigned position, adjust the height of each footing dish 12 once more for the lower extreme of each footing dish 12 all contacts with ground, and each universal wheel 11 did not contact with ground this moment, made the difficult emergence of dust shaker removal through the frictional force between footing dish 12 and ground and removed.

The working principle is as follows:

an operator firstly places the filter on the placing plate 2, then the X-axis driving part 511, the Y-axis driving part 552 and the Z-axis driving part 562 work to move the dust removal component 3 to a proper position above the filter, and then the swinging driving part 32 drives the first swing arm 34 to rotate, because the first swing arm 34, the connecting rod 36, the second swing arm 35 and the mounting seat 33 form a crank rocker mechanism, the second swing arm 35 is driven to overturn by the connecting rod 36 in the rotating process of the first swing arm 34, at the moment, the air nozzle 31 fixed on the second swing arm 35 swings in a reciprocating manner to blow air and remove dust for the filter, and the air nozzle 31 swinging in a reciprocating manner can blow air at multiple angles for the filter, so that dust on the filter can be blown down more easily, and the cleaning effect; in the reciprocating swing process of the air nozzle 31, the X-axis driving part 511 and the Y-axis driving part 552 synchronously drive the air nozzle 31 to horizontally move above the filter, so that the filtering holes at the upper end of the filter are aligned with the air nozzle 31, the filter can be completely dedusted, and the dedusting effect is further improved. After the dust cleaned up on the filter is blown into the first dust collecting area 43 through the through hole 21, most of the dust will be deposited in the first dust collecting area 43, a small part of the dust enters the second dust collecting area 44 through the gap 421 between the partition plate 42 and the top plate of the dust collecting box 41 along with the air flow, and secondary deposition is performed in the second dust collecting area 44, finally, the gas is discharged from the gas outlet 441 through the gas filter 442, the dust collecting assembly 4 has a simple structure, and can perform secondary deposition on the dust, which is beneficial to dust collection, the gas filter 442 can perform the final dust removal on the gas discharged from the gas outlet 441, thereby avoiding the dust from polluting the environment, and further improving the dust collecting effect of the dust collecting box 41.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a tail gas filter dust shaker which characterized in that: including frame (1), be used for placing the arrangement board (2) of filter, set up in dust removal subassembly (3) of arrangement board (2) top, set up in dust collection subassembly (4) of arrangement board (2) below and be used for driving removal subassembly (5) that dust removal subassembly (3) removed, dust collection subassembly (4) and removal subassembly (5) are all installed in frame (1), install on removal subassembly (5) dust removal subassembly (3), arrangement board (2) horizontal fixation is in frame (1), be provided with on arrangement board (2) and supply the dust to enter into through-hole (21) in dust collection subassembly (4), dust removal subassembly (3) are including air cock (31), drive air cock (31) wobbling swing driving piece (32) and be fixed in mount pad (33) on removal subassembly (5), swing driving piece (32) are fixed in on mount pad (33), and be fixed with first swing arm (34) on swing driving piece (32), articulated on mount pad (33) have second swing arm (35), air cock (31) are fixed in on second swing arm (35), first swing arm (34) are connected through connecting rod (36) with second swing arm (35), connecting rod (36) are articulated with first swing arm (34) and second swing arm (35) junction, under first drive assembly drove first swing arm (34) rotation state, second swing arm (35) drive air cock (31) reciprocating swing.

2. The exhaust filter dust collector according to claim 1, wherein: the moving assembly (5) comprises an X-axis slide way fixing seat (51), a Y-axis slide way fixing seat (52), a Z-axis slide way fixing seat (53), an X-axis slide way (54) fixed on the X-axis slide way fixing seat (51), a Y-axis slide way (55) fixed on the Y-axis slide way fixing seat (52) and a Z-axis slide way (56) fixed on the Z-axis slide way fixing seat (53), wherein the X-axis slide way fixing seat (51) is fixed on the rack (1), the Y-axis slide way fixing seat (52) is connected on the X-axis slide way (54) in a sliding manner, the Z-axis slide way fixing seat (53) is connected on the Y-axis slide way (55) in a sliding manner, the mounting seat (33) is connected on the Z-axis slide way (56) in a sliding manner, driving wheels (541) are arranged at two ends of the X-axis slide way (54), a driving belt, the X-axis slideway fixing seat (51) is further provided with an X-axis driving part (511) used for driving a driving wheel (541) to rotate, a Y-axis lead screw (551) and a Y-axis driving part (552) used for driving a Y-axis lead screw (551) to rotate are arranged on the Y-axis slideway fixing seat (52), the length direction of the Y-axis lead screw (551) is consistent with that of a Y-axis slideway (55), the Y-axis lead screw (551) is in threaded connection with the Z-axis slideway fixing seat (53), a Z-axis lead screw (561) and a Z-axis driving part (562) used for driving the Z-axis lead screw (561) to rotate are arranged on the Z-axis slideway fixing seat (53), the length direction of the Z-axis lead screw (561) is consistent with that of the Z-axis slideway (56), and the Z-axis lead screw (561) is in threaded connection with the mounting seat (33).

3. The exhaust gas filter dust collector according to claim 2, wherein: y axle slide rail (55) with Z axle slide rail (56) all are provided with two, and two Y axle slide rail (55) parallel arrangement are in Y axle slide fixing base (52) length direction's both sides, Y axle lead screw (551) set up between two Y axle slide rail (55), and two Z axle slide rail (56) parallel arrangement are in Z axle slide fixing base (53) length direction's both sides, Z axle lead screw (561) set up between two Z axle slide rail (56).

4. An exhaust filter dust collector according to claim 2 or 3, wherein: x axle slide fixing base (51) and X axle slide rail (54) all are provided with two, are located Y axle slide fixing base (52) length both ends respectively, drive wheel (541) correspond and are provided with four, two X axle slide rail (54) parallel arrangement, and are located between two drive wheel (541) of X axle slide rail (54) same end through connecting axle (542) fixed connection, X axle driving piece (511) drive arbitrary one drive wheel (541) rotatory.

5. The exhaust filter dust collector according to claim 1, wherein: the dust collection assembly (4) comprises a sealed dust collection box (41), a partition plate (42) is arranged in the dust collection box (41), the partition plate (42) divides the dust collection box (41) into a first dust collection area (43) and a second dust collection area (44), a gap (421) is reserved between the upper end of the partition plate (42) and the top plate of the dust collection box (41), an air inlet hole (431) is formed in the top plate of the first dust collection area (43), the air inlet hole (431) is communicated with a through hole (21), the projection contour of the through hole (21) on the horizontal plane is located in the projection contour of the air inlet hole (431) on the horizontal plane, and an air outlet hole (441) communicated with the outside of the dust collection box (41) is formed in the side wall of the second dust collection area (.

6. The exhaust filter dust collector according to claim 5, wherein: the second dust collecting area (44) is internally provided with a gas filter (442), the gas filter (442) is arranged at the gas outlet hole (441), and gas passes through the gas filter (442) and then is discharged from the gas outlet hole (441).

7. An exhaust filter dust collector according to claim 5 or 6, wherein: the dust collection box (41) is detachably connected with the frame (1).

8. The exhaust filter dust collector according to claim 1, wherein: the four corners of the frame (1) are provided with universal wheels (11) and a foot plate (12) with adjustable height.

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