Dust remover capable of conveniently cleaning air inlet pipeline

Abstract

The utility model relates to the technical field of dust removers, in particular to a dust remover with an air inlet pipeline convenient to clean, which comprises a machine frame, a ventilation bin arranged on the machine frame, an ash bin, a dust removal bin and an air purification bin, the ventilation bin comprises an air inlet chamber and an air outlet chamber, and the air inlet chamber is connected and communicated with the ash bin through an air inlet pipeline. The ash bin and the air purification bin are both connected and communicated with the dust removal bin, and the air purification bin is connected and communicated with the air outlet chamber; a square pipe is fixedly connected to the air inlet pipeline, and a sealing door is detachably arranged at a pipe opening of the square pipe. According to the dust remover with the air inlet pipeline convenient to clean, the sealing door is opened, a person stands outside the dust remover and stretches a dust cleaning tool into the air inlet pipeline from the cleaning opening and the square pipe, dust accumulated on the inner wall of the air inlet pipeline can be shoveled, cleaning is more convenient, and potential safety hazards do not exist.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust remover technical field, concretely relates to a dust remover convenient for cleaning air inlet pipeline. BACKGROUND

[0002] The rotary furnace cold ash bucket generates a large amount of flue gas during operation, the flue gas enters the air inlet chamber of the dust remover through the dust removal pipeline, then passes through the air inlet pipeline and ash bin to enter the dust removal bin of the dust remover, and is discharged from the clean gas bin and air outlet chamber of the dust remover after being filtered by the dust removal element in the dust removal bin. However, because the rotary furnace cold ash bucket flue gas contains a large amount of dust, the dust is prone to sedimentation when flowing through the air inlet pipeline, and the sedimentation time is too long, which can easily cause the air inlet pipeline to be blocked. In order to solve the problem of dust blocking the air inlet pipeline, personnel must enter the ash bin from the observation hole of the ash bin when cleaning the accumulated ash, and the personnel stand on the inclined plate inside the ash bin to clean the accumulated ash of the air inlet pipeline with the ash cleaning tool. Because the air inlet pipeline is above the observation hole (the standing position of the personnel), the accumulated ash is prone to collapse during the cleaning process, which poses a safety hazard to the personnel. Therefore, there is an urgent need for a dust remover that can conveniently clean the air inlet pipeline to solve the above problems. SUMMARY

[0003] In order to solve the technical problem that when the personnel stand on the inclined plate inside the ash bin to clean the accumulated ash of the air inlet pipeline with the ash cleaning tool, because the air inlet pipeline is above the observation hole, the accumulated ash is prone to collapse during the cleaning process, which poses a safety hazard to the personnel, the utility model provides a dust remover that can conveniently clean the air inlet pipeline. Open the sealing door, and the personnel can extend the ash cleaning tool from the square tube into the air inlet pipeline outside the dust remover to shovel off the accumulated dust on the inner wall of the air inlet pipeline, which is more convenient to clean and does not pose a safety hazard.

[0004] The utility model provides a dust remover that can conveniently clean the air inlet pipeline, which comprises a rack, a ventilation bin, an ash bin, a dust removal bin and a clean gas bin arranged on the rack. The ventilation bin comprises an air inlet chamber and an air outlet chamber. The air inlet chamber is connected to and communicates with the ash bin through an air inlet pipeline. The ash bin and the clean gas bin are both connected to and communicate with the dust removal bin. The clean gas bin is connected to and communicates with the air outlet chamber. A square tube is fixedly connected to the air inlet pipeline. A sealing door is detachably arranged at the tube opening of the square tube. When cleaning the accumulated ash, open the sealing door, and the personnel can extend the ash cleaning tool from the square tube into the air inlet pipeline to shovel off the accumulated dust on the inner wall of the air inlet pipeline. The shovelled-off dust can then be discharged into the ash bucket. After completing the cleaning of the accumulated ash, fix the sealing door at the tube opening of the square tube to avoid affecting the subsequent dust removal work of the dust remover.

[0005] Further, the sealing door is arranged at the pipe opening of the square pipe, a fixing rod is arranged on the sidewall of the square pipe, a fixing piece is arranged on the sidewall of the sealing door, and a fixing opening is arranged on the fixing piece, the fixing rod is clamped into the fixing opening, and the bottom of the fixing rod is fixedly connected to the square pipe and the sealing door through a fixing nut, and the size of the fixing opening is smaller than that of the fixing nut. When the dust collector is working, the sealing door is arranged at the pipe opening of the square pipe, the fixing rod is clamped into the fixing opening, and the bottom of the fixing rod is fixedly connected to the square pipe and the sealing door through the fixing nut, so that the sealing door is fixed and the pipe opening of the square pipe is sealed, and the fixing rod is locked and cannot rotate. When the accumulated dust is cleaned, the fixing nut is removed, the fixing rod is rotated to make the fixing rod leave the fixing opening on the fixing piece, and then the sealing door can be taken away from the pipe opening of the square pipe.

[0006] Further, two shaft sleeves are arranged on the sidewall of the square pipe, and two shaft rods are arranged on the top of the fixing rod, the shaft rods pass through the shaft sleeves and rotate in the shaft sleeves.

[0007] Further, a dust removal assembly is arranged in the dust removal bin, the dust removal assembly comprises a plurality of dust removal bags which are evenly arranged in the dust removal bin, a plurality of clamping interfaces are evenly arranged on the top of the dust removal bin, and the top of the dust removal bag is clamped at the clamping interface and the inside of the dust removal bag is communicated with the clean gas bin. The flue gas carrying small particle dust moves upward into the dust removal bin, the dust removal bag functions to remove the flue gas carrying small particle dust and other impurities, and the clean flue gas enters the clean gas bin through the inside of the dust removal bag.

[0008] Further, the clean gas bin comprises a plurality of clean gas chambers, and the inside of the plurality of dust removal bags is respectively communicated with the plurality of clean gas chambers; the dust removal assembly further comprises a plurality of groups of back flushing parts which are the same in number as the clean gas chambers, each group of the back flushing parts comprises a gas bag arranged outside the clean gas bin and a plurality of blowing pipes which are evenly arranged in the clean gas chamber, a plurality of pulse valves are evenly arranged on the gas bag, one end of the pulse valve is connected with an L-shaped pipe, the other end of the L-shaped pipe penetrates into the clean gas chamber and is connected with one end of the blowing pipe, the other end of the blowing pipe is fixedly connected in the clean gas chamber, a plurality of blowing heads are evenly arranged on the blowing pipe, and the blowing heads are directed to the top of the dust removal bag. When one pulse valve is started, the high-pressure gas in the gas bag enters the plurality of dust removal bags through the plurality of blowing heads on the blowing pipe connected with the pulse valve, the high-pressure gas blows off the impurities attached to the outside of the dust removal bag, and the impurities fall into the ash bin through the dust removal bin.

[0009] Further, the clean gas chamber bottom is provided with a plurality of exhaust holes same in number with the clean gas chambers, the clean gas chambers are communicated with the air outlet chamber through the exhaust holes; the clean gas chamber is externally provided with a plurality of air cylinders, the telescopic rods of the air cylinders penetrate into the clean gas chamber and are fixedly connected with the sealing plate, and the sealing plate is located above the exhaust hole. The air cylinder is started to drive the sealing plate to move upward and away from the exhaust hole, at this time, the clean flue gas can enter the air outlet chamber through the exhaust hole. The air cylinder is started to drive the sealing plate to move downward and cover the exhaust hole, and the clean gas chamber corresponding to the exhaust hole is a closed space, so that the back blowing effect can be ensured and the high-pressure gas can be prevented from leaking from the exhaust hole.

[0010] Further, the dust collector is externally provided with a gas storage tank, the gas storage tank is provided with a first pipeline, the first pipeline is provided with two gate valves and a pressure reducing valve located between the two gate valves; each gas bag is connected with the first pipeline through a second pipeline, and the second pipeline is provided with a butterfly valve. The high-pressure gas is stored in the gas storage tank and enters the plurality of gas bags through the first pipeline and the second pipeline.

[0011] Compared with the prior art, the dust collector has the following beneficial effects:

[0012] The dust collector convenient to clean the air inlet pipeline of the utility model opens the sealing door, and a person stretches the ash cleaning tool from the square tube to the inside of the air inlet pipeline to shovel off the dust accumulated on the inner wall of the air inlet pipeline, and then the shovelled dust can enter the ash bucket. After completing the accumulated ash cleaning, the sealing door is fixed at the pipe opening of the square tube, so that the subsequent dust removal work of the dust collector is not affected. The dust collector of the utility model opens the sealing door, and a person standing outside the dust collector stretches the ash cleaning tool from the square tube to the inside of the air inlet pipeline to shovel off the dust accumulated on the inner wall of the air inlet pipeline, so that the cleaning is more convenient, and there is no safety hazard. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the side view structural schematic diagram of the dust collector convenient to clean the air inlet pipeline of the utility model;

[0014] Figure 2 is the dust removal chamber of the utility model Figure 1 is the structure enlarged schematic diagram of A;

[0015] Figure 3 is the dust removal chamber of the utility model Figure 1 is the structure enlarged schematic diagram of B;

[0016] Figure 4 is the side view structural schematic diagram of the shaft sleeve of the utility model;

[0017] Figure 5 is the structure schematic diagram of the dust removal chamber of the utility model;

[0018] Figure 6 is the front view structural schematic diagram of the dust remover of the utility model;

[0019] Figure 7 is the sectional view structural schematic diagram of the ventilation bin of the utility model;

[0020] Figure 8 is the top view structural schematic diagram of the dust remover of the utility model;

[0021] The reference signs in the drawings are:

[0022] 1, rack;2, ventilation bin;21, air inlet chamber;22, air outlet chamber;23, air inlet pipe;24, air inlet;25, air outlet;3, ash bin;4, dust removal bin;41, dust removal cloth bag;5, clean air bin;51, clean air chamber;52, air bag;521, pulse valve;53, blowing pipe;531, blowing head;54, L-shaped pipe;55, exhaust hole;56, air cylinder;57, sealing plate;6, square pipe;61, fixed rod;62, shaft sleeve;7, sealing door;71, fixed sheet;8, air storage tank;81, first pipe;82, second pipe. DETAILED DESCRIPTION

[0023] The utility model is further explained below in combination with the drawings and specific embodiments.

[0024] As Figures 1-8 shown, a kind of dust remover of air inlet pipe is conveniently cleaned, the dust remover includes rack 1, ventilation bin 2, ash bin 3, dust removal bin 4 and clean air bin 5 being arranged on rack 1, the ventilation bin 2 includes air inlet chamber 21 and air outlet chamber 22, wherein, first baffle is obliquely arranged in the ventilation bin 2, the first baffle separates ventilation bin 2 into air inlet chamber 21 and air outlet chamber 22, air inlet 24 and air outlet 25 are provided on the ventilation bin 2, the air inlet 24 is communicated with air inlet chamber 21, the air outlet 25 is communicated with air outlet chamber 22;Air inlet chamber 21 is connected and communicated with ash bin 3 by air inlet pipe 23, ash bin 3 and clean air bin 5 are connected and communicated with dust removal bin 4, clean air bin 5 is connected and communicated with air outlet chamber 22;Square pipe 6 is fixedly connected in the bottom of air inlet pipe 23, sealing door 7 is detachably arranged at the pipe opening of square pipe 6.

[0025] When the dust collector of the embodiment is working, a large amount of flue gas generated when the rotary furnace cold ash bucket is running enters the air inlet chamber 21 through the external dust removal pipeline, the air inlet 24, and then the flue gas enters the ash bin 3 through the air inlet pipeline 23. The large particles of dust carried in the flue gas fall into the ash bin 3 by gravity, and the small particles of dust carried by the flue gas move upward into the dust removal bin 4. The dust removal bin 4 removes the small particles of dust carried by the flue gas and other impurities, and the clean flue gas is discharged to the outside atmosphere through the clean gas bin 5, the air outlet chamber 22, and the air outlet 25.

[0026] When the flue gas passes through the air inlet pipeline 23, the dust in the flue gas is easy to deposit in the air inlet pipeline 23, causing blockage. In the embodiment, when cleaning the accumulated ash, the sealing door 7 is opened, and the person extends the ash cleaning tool from the square tube 6 into the air inlet pipeline 23, thereby shoveling off the dust accumulated on the inner wall of the air inlet pipeline 23. The shoveling-off dust can then enter the ash bucket. After completing the accumulated ash cleaning, the sealing door 7 is fixed at the pipe opening of the square tube 6, thereby not affecting the subsequent dust removal work of the dust collector.

[0027] In the dust collector of the embodiment, the sealing door 7 is opened, and the person stands outside the dust collector to extend the ash cleaning tool from the square tube 6 into the air inlet pipeline 23, thereby shoveling off the dust accumulated on the inner wall of the air inlet pipeline 23. The cleaning is more convenient and there is no safety hazard.

[0028] Further, a transparent window is provided on the sealing door 7, through which the person can observe the accumulated ash in the air inlet pipeline 23, thereby facilitating the person to perform periodic cleaning.

[0029] As an implementable manner, an air inlet valve is provided on the air inlet pipeline 23, and the square tube 6 is located at one end of the air inlet pipeline 23 away from the ash bin 3. When the air inlet valve is opened, the flue gas enters the ash bin 3 through the air inlet pipeline 23, and vice versa. The air inlet valve is a manual valve.

[0030] As an implementable manner, two ash bins 3 and air inlet pipelines 23 are provided. The structure of the ash bin 3 is a prior art and will not be described in detail here. Specifically, the small particles of dust carried by the flue gas in the two ash bins 3 move upward into the dust removal bin 4.

[0031] As an implementable mode, the sealing door 7 is sleeved at the pipe opening of the square pipe 6, a fixed rod 61 is rotatably arranged on the sidewall of the square pipe 6, a fixed sheet 71 is arranged on the sidewall of the sealing door 7, the fixed sheet 71 is provided with a fixed opening, the fixed rod 61 is clamped into the fixed opening, and the bottom of the fixed rod 61 is fixedly connected to the square pipe 6 and the sealing door 7 through a fixed nut. The size of the fixed opening is smaller than that of the fixed nut. When the dust collector is working, the sealing door 7 is sleeved at the pipe opening of the square pipe 6, the fixed rod 61 is clamped into the fixed opening, and the bottom of the fixed rod 61 is fixedly connected to the square pipe 6 and the sealing door 7 through the fixed nut. At this time, the sealing door 7 is fixed and the pipe opening of the square pipe 6 is sealed by the sealing door 7, and the fixed rod 61 is locked and cannot rotate. When cleaning the accumulated dust, the fixed nut is removed, the fixed rod 61 is rotated to make the fixed rod 61 away from the fixed opening on the fixed sheet 71, and at this time, the sealing door 7 can be taken away from the pipe opening of the square pipe 6.

[0032] Further, two shaft sleeves 62 are arranged on the sidewall of the square pipe 6, the top of the fixed rod 61 is provided with two shaft rods, the shaft rods pass through the shaft sleeves 62 and rotate in the shaft sleeves 62. The fixed rod 61 and the two shaft rods can be integrally formed, and the fixed rod 61 and the two shaft rods are T-shaped. The shaft rods rotate in the shaft sleeves 62, thereby driving the fixed rod 61 to rotate.

[0033] As an implementable mode, the dust removal bin 4 is internally provided with a dust removal assembly, the dust removal assembly includes a plurality of dust removal cloth bags 41 uniformly arranged in the dust removal bin 4, the outside of the dust removal cloth bag 41 is communicated with the dust removal bin 4, the top of the dust removal bin 4 is uniformly provided with a plurality of clamping interfaces, the top of the dust removal cloth bag 41 is clamped at the clamping interface, and the inside of the dust removal cloth bag 41 is communicated with the clean gas bin 5. The structure of the dust removal cloth bag 41 is a prior art, which will not be described in detail here. The flue gas carrying small particle dust moves upward into the dust removal bin 4, the dust removal cloth bag 41 acts to remove the flue gas carrying small particle dust and other impurities, and the clean flue gas enters the clean gas bin 5 through the inside of the dust removal cloth bag 41.

[0034] The structure of the dust removal cloth bag 41 is simply described in the embodiment, the dust removal cloth bag 41 includes a keel frame and a bag body, the keel frame is clamped at the clamping interface, the bag body is fixedly connected to the keel frame, and the bag body passes through the clamping interface and is located in the dust removal bin 4.

[0035] As an implementable mode, the clean gas bin 5 includes a plurality of clean gas chambers 51, in the embodiment, the clean gas chamber 51 and the back flushing part are provided with four, the clean gas bin 5 is internally provided with three second partitions, the three second partitions divide the inside of the clean gas bin 5 into four clean gas chambers 51, and the insides of the plurality of dust removal cloth bags 41 are respectively communicated with the plurality of clean gas chambers 51.

[0036] The dust removal assembly further comprises a plurality of groups of back-blowing parts in the same number as the clean gas chambers 51, each group of the back-blowing parts comprising a gas bag 52 arranged outside the clean gas chamber 5 and a plurality of blow pipes 53 uniformly arranged inside the clean gas chamber 51, the gas bag 52 being uniformly provided with a plurality of pulse valves 521, wherein the pulse valves 521 and the blow pipes 53 are provided in ten, the pulse valves 521 being connected with one end of an L-shaped pipe 54, the other end of the L-shaped pipe 54 penetrating into the clean gas chamber 51 and being connected with one end of the blow pipe 53, the other end of the blow pipe 53 being fixedly connected inside the clean gas chamber 51 through an L-shaped connecting plate, the blow pipe 53 being uniformly provided with a plurality of blow heads 531, the blow heads 531 being directed to the top of the dust removal cloth bag 41. The back-blowing part back-blows the dust removal cloth bag 41, ensuring the dust removal effect and service life of the dust removal cloth bag 41. One pulse valve 521 is started, and high-pressure gas in the gas bag 52 enters the plurality of dust removal cloth bags 41 through the plurality of blow heads 531 on the blow pipe 53 connected with the pulse valve 521 at the same time, the high-pressure gas blowing off impurities attached to the outside of the dust removal cloth bag 41, the impurities falling into the ash chamber 3 through the dust removal chamber 4. In the embodiment, ten blow pipes 53 are arranged inside one clean gas chamber 51, and each blow pipe 53 can back-blow 16 dust removal cloth bags 41 at the same time.

[0037] Further, the side of the L-shaped connecting plate is fixedly connected with the other end of the blow pipe 53 and blocks the other end of the blow pipe 53, and the upper part of the L-shaped connecting plate is fixedly connected inside the clean gas chamber 51 through a bolt.

[0038] Further, the other end of the L-shaped pipe 54 penetrating into the clean gas chamber 51 is also fixedly connected with one L-shaped connecting plate, the upper part of the L-shaped connecting plate being fixedly connected inside the clean gas chamber 51 through a bolt, further ensuring that the L-shaped pipe 54 and the blow pipe 53 remain stable.

[0039] As an implementable manner, the clean gas chamber 5 is provided at the bottom with a plurality of exhaust holes 55 in the same number as the clean gas chambers 51, the clean gas chambers 51 being communicated with the air outlet chamber 22 through the exhaust holes 55; the clean gas chamber 5 is provided outside with a plurality of air cylinders 56, in the embodiment, the exhaust holes 55 and the air cylinders 56 are provided in four, the telescopic rod of the air cylinder 56 penetrating into the clean gas chamber 51 and being fixedly connected with a sealing plate 57, the sealing plate 57 being located above the exhaust hole 55.

[0040] When the dust remover of the embodiment is working, the air cylinder 56 is started, driving the sealing plate 57 to move upward away from the exhaust hole 55, at this time, clean flue gas can enter the air outlet chamber 22 through the exhaust hole 55.

[0041] When the blowback part blows back the dust cloth bag 41, the cylinder 56 corresponding to the blowback part is started to drive the sealing plate 57 to move downward to cover the exhaust hole 55, and the clean gas chamber 51 corresponding to the exhaust hole 55 is a closed space, so that the blowback effect can be ensured, and the high-pressure gas is prevented from leaking from the exhaust hole 55.

[0042] As an implementable manner, a protective cover is arranged on the top of the clean gas chamber 5, and the protective cover is located above the cylinder 56 and the blowback part.

[0043] As an implementable manner, the dust collector is externally provided with a gas storage tank 8, the gas storage tank 8 is provided with a first pipeline 81, the first pipeline 81 is provided with two gate valves and a pressure reducing valve between the two gate valves, and each gas bag 52 is connected with the first pipeline 81 through a second pipeline 82, and the second pipeline 82 is provided with a butterfly valve. The gas storage tank 8 provides high-pressure gas for blowback. The high-pressure gas in the gas storage tank 8 enters the plurality of gas bags 52 through the first pipeline 81 and the second pipeline 82. The high-pressure gas can pass through the first pipeline 81 only when the two gate valves are opened, and the sealing effect of the two gate valves is better. The pressure reducing valve is used to adjust the pressure in the first pipeline 81. The high-pressure gas can pass through the second pipeline 82 only when the butterfly valve is opened.

[0044] In the embodiment, the first pipeline 81 can be locked on the rack 1, and part of the first pipeline 81 is located above the plurality of gas bags 52. The gas storage tank 8 is connected with one end of the first pipeline 81, one gas bag 52 away from the gas storage tank 8 is connected with the other end of the first pipeline 81 through the second pipeline 82, and the other gas bags 52 are connected with the middle part of the first pipeline 81 through the second pipeline 82.

[0045] As an implementable manner, the dust collector is externally provided with a gas pump in communication with the gas storage tank 8 through a third pipeline, and the gas storage tank 8 provides high-pressure gas for the gas pump. The air inlet pipeline 23 is provided with an air outlet hole located above the side of the square tube 6, the gas pump is connected with the air outlet hole through an air pipe, and an air outlet valve is arranged at the connection position of the air pipe and the air outlet hole. The air outlet valve is a manual valve. When cleaning the accumulated dust, the air outlet valve is opened first, the gas pump is started, and the high-pressure gas is discharged from the air outlet hole through the third pipeline and the air pipe. Because the air outlet hole is located above the side of the square tube 6, the high-pressure gas can blow away the dust located on the side of the air outlet hole. When the dust collector is working, the air outlet valve is in a closed state. Generally, the accumulated dust can be blown away by the high-pressure gas first. If the accumulated dust is cleaned completely, it is not necessary to clean manually. If the accumulated dust is not cleaned completely, the sealing door 7 is opened manually for cleaning, so that the cleaning time of the person can be saved, and the labor intensity of the person can be reduced.

[0046] The above-described embodiments are only preferred embodiments of the present application, and are merely used to explain the present application, and are not intended to limit the scope of the present application. For those skilled in the art, of course, other embodiments can be easily made by substitution or change based on the technical content disclosed in the present application, and therefore, any changes and improvements made within the principles and technical conditions of the present application should be included in the scope of the present application.

Claims

1. A dust collector for conveniently cleaning an air inlet duct, the dust collector comprising a frame (1), a ventilation bin (2) provided on the frame (1), an ash bin (3), a dust removal bin (4) and a clean air bin (5), characterized in that, The ventilation bin (2) comprises an air inlet chamber (21) and an air outlet chamber (22), the air inlet chamber (21) is connected with and communicated with the ash bin (3) through an air inlet pipeline (23), the ash bin (3) and the clean air bin (5) are connected with and communicated with the dust removal bin (4), and the clean air bin (5) is connected with and communicated with the air outlet chamber (22); a square tube (6) is fixedly connected on the air inlet pipeline (23), and a sealing door (7) is detachably arranged at the tube opening of the square tube (6).

2. The dust extractor according to claim 1, characterized in that The sealing door (7) is arranged at the tube opening of the square tube (6), a fixed rod (61) is rotatably arranged on the side wall of the square tube (6), a fixed sheet (71) is arranged on the side wall of the sealing door (7), and a fixed opening is arranged on the fixed sheet (71); the fixed rod (61) is clamped into the fixed opening, and the bottom of the fixed rod (61) is fixedly connected on the square tube (6) and the sealing door (7) through a fixed nut; the size of the fixed opening is smaller than the size of the fixed nut.

3. The dust extractor according to claim 2, characterized in that Two shaft sleeves (62) are arranged on the side wall of the square tube (6), and the top of the fixed rod (61) is provided with two shaft rods; the shaft rods pass through the shaft sleeves (62) and rotate in the shaft sleeves (62).

4. The dust extractor according to claim 1, characterized in that A dust removal assembly is arranged in the dust removal bin (4), the dust removal assembly comprises a plurality of dust removal cloth bags (41) uniformly arranged in the dust removal bin (4), and a plurality of clamping interfaces are uniformly arranged on the top of the dust removal bin (4); the top of the dust removal cloth bag (41) is clamped at the clamping interface, and the inside of the dust removal cloth bag (41) is communicated with the clean air bin (5).

5. The dust extractor according to claim 4, characterized in that The clean air bin (5) comprises a plurality of clean air chambers (51), and the insides of the plurality of dust removal cloth bags (41) are respectively communicated with the plurality of clean air chambers (51); the dust removal assembly further comprises a plurality of groups of back blowing parts which are the same in number as the clean air chambers (51), each group of the back blowing parts comprises a gas bag (52) arranged outside the clean air bin (5) and a plurality of blowing pipes (53) uniformly arranged in the clean air chamber (51); a plurality of pulse valves (521) are uniformly arranged on the gas bag (52), one end of the L-shaped pipe (54) is connected with the pulse valve (521), the other end of the L-shaped pipe (54) penetrates into the clean air chamber (51) and is connected with one end of the blowing pipe (53), the other end of the blowing pipe (53) is fixedly connected in the clean air chamber (51), and a plurality of blowing heads (531) are uniformly arranged on the blowing pipe (53) and face the top of the dust removal cloth bag (41).

6. The dust extractor according to claim 5, characterized in that A plurality of exhaust holes (55) which are the same in number as the clean air chambers (51) are arranged at the bottom of the clean air bin (5), the clean air chamber (51) is communicated with the air outlet chamber (22) through the exhaust hole (55); a plurality of air cylinders (56) are arranged outside the clean air bin (5), the telescopic rod of the air cylinder (56) penetrates into the clean air chamber (51) and is fixedly connected with a sealing plate (57), and the sealing plate (57) is located above the exhaust hole (55).

7. The dust extractor according to claim 5, characterized in that The dust remover is externally provided with a gas storage tank (8), the gas storage tank (8) is provided with a first pipeline (81), the first pipeline (81) is provided with two gate valves and a pressure reducing valve located between the two gate valves; each gas pocket (52) is connected with the first pipeline (81) through a second pipeline (82), and the second pipeline (82) is provided with a butterfly valve.

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