Back blowing type dust removal device

Abstract

The utility model discloses a reverse blowing type dust removal device which comprises a base plate, the upper side of the base plate is fixedly connected with three fixing frames which are transversely distributed, the sides, close to each other, of the fixing frames are fixedly connected with two protection pipes which are symmetrically distributed left and right, and the sides, away from the protection pipes, of the fixing frames are fixedly connected with a power mechanism. And the left side and the right side of the fixing frame are rotationally connected with two barrel-type dust removal pipes which are symmetrically distributed left and right, the barrel-type dust removal pipes are located on the inner side of the protection pipe, and the left side of the power mechanism and the front side and the rear side of the protection pipe are fixedly connected with pipeline mechanisms. According to the reverse blowing type dust removal device, the two barrel type dust removal pipes are respectively in a rotary cleaning state and a static state through the matching of the two transmission components, so that the problem that dust is mixed again during subsequent dust removal operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, in particular to a back-flushing dust removal device. Background Art

[0002] A large amount of dust is generated in industrial production. Once the dust enters the equipment, it will affect the working performance of the equipment or even make the equipment unable to work. At the same time, dust and debris cause dust pollution, which is not conducive to the health of production personnel and environmental protection.

[0003] Therefore, Chinese patent document CN213527805U discloses a back-flushing dust removal device, which includes a base plate, a mounting base, a cylindrical filter, a filter dust removal device, and a back-flushing device. The filter dust removal device cleans dust accumulated on the cylindrical filter. However, because the brush on the dust removal device directly contacts the cylindrical filter, the cylindrical filter is also cleaned by the brush during the filtering operation. The filtered gas is mixed with the dust inside the cylindrical filter again, resulting in a decrease in dust removal efficiency. Utility Model Content

[0004] The utility model provides a back-blowing dust removal device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The back-blowing dust removal device includes a base plate, three laterally distributed fixing frames are fixedly connected to the upper side of the base plate, two protective tubes symmetrically distributed on the left and right sides of the fixing frames are fixedly connected on the sides close to each other, and a power mechanism is fixedly connected on the side of the fixing frames away from the protective tubes. The left and right sides of the fixing frames are rotatably connected to two cylindrical dust removal tubes symmetrically distributed on the left and right sides, and the cylindrical dust removal tubes are located on the inner sides of the protective tubes. A cleaning mechanism is fixedly connected to the inner sides of the two protective tubes, and a pipeline mechanism is fixedly connected to the left side of the power mechanism and the front and rear sides of the protective tubes.

[0007] Preferably, the power mechanism includes a motor, the left side of the motor is fixedly connected to the middle of the right side of the rightmost fixing frame, the output end of the motor is fixedly connected to the air distribution pipe, the outer wall of the air distribution pipe is rotatably connected to the inner side of the fixing frame, and the air distribution pipe is located on the inner side of the cylindrical dust removal pipe, the middle of the left side of the left side of the fixing frame located on the leftmost side is fixedly connected to an adapter, the left side of the air distribution pipe is rotatably connected to the right side of the adapter, and the inner middle of the air distribution pipe is fixedly connected to a built-in pipe.

[0008] Preferably, the two protective tubes are rotatably connected to a transmission assembly on the sides away from each other, and the transmission assembly includes a first gear ring, and the side of the first gear rings close to each other is rotatably connected to the side of the protective tubes away from each other, and the outer wall of the cylindrical dust removal tube close to the first gear ring is fixedly connected to the second gear ring, and the outer sides of the first gear ring and the second gear ring are meshed and connected with a number of annularly distributed gears, and the left and right gears located on the same axis are fixedly connected on the sides close to each other, and the gears are rotatably connected to a wall of the protective tube away from each other, and the first gear ring is fixedly connected to the axis center of the side away from the protective tube, and the inner side of the gear ring is movably sleeved with a transmission sleeve, and the side of the transmission sleeve close to the protective tube is fixedly connected with a number of annularly distributed plug rods, and the outer sides of the plug rods are movably sleeved in the socket opened on the side of the protective tube away from each other.

[0009] Preferably, the transmission sleeve is rotatably connected to a rotating plate on the side away from the protective tube, and the rotating plate is fixedly connected to a plurality of annularly distributed electromagnetic telescopic rods on the side away from the protective tube. The outer sides of the electromagnetic telescopic rods are fixedly sleeved on the inner sides of the fixed frames on the left and right sides, and the outer wall of the air distribution pipe is fixedly sleeved with a linkage sleeve near the left and right ends, and the outer side of the linkage sleeve is interactively sleeved on the inner side of the transmission sleeve.

[0010] Preferably, the cleaning mechanism includes a support sleeve, the left and right sides of the support sleeve are fixedly connected to the middle of one side of the fixed frame close to each other, and the adapter is located on the inner side of the support sleeve, the support sleeve is located on the inner side of the cylindrical dust removal pipe, the outer side of the support sleeve is fixedly connected with several linearly distributed first support frames, the inner side of the protective tube is fixedly connected with several linearly distributed second support frames, several of the first support frames and the second support frames are fixedly connected to several annularly distributed telescopic rods on one side close to the cylindrical dust removal pipe, the telescopic rod is fixedly connected to one end close to the cylindrical dust removal pipe with a brush, six brushes are distributed in an annular manner, and the inside and outside of the brushes are divided into two layers, the side of the brushes close to each other fits the inner and outer sides of the cylindrical dust removal pipe, and the outer sides of several of the telescopic rods are movably sleeved with springs.

[0011] Preferably, the pipeline mechanism includes an air intake pipe, the right side of the air intake pipe is fixedly connected to the left side of the air distribution pipe, and two air intake pipes are distributed upper and lower on the left side of the air distribution pipe, the left ends of the two air intake pipes are connected by a first Y-shaped pipe, and the outer sides of the two air intake pipes are movably installed with a first air valve, the front sides of the two protective pipes near the lower sides are fixedly connected with dust suction pipes, the right ends of the two dust suction pipes are connected by a second Y-shaped pipe, and the outer sides of the two dust suction pipes are movably installed with a second air valve, the rear sides of the two protective pipes near the lower sides are fixedly connected with an air outlet pipe, the right ends of the two air outlet pipes are connected by a third Y-shaped pipe, and the outer sides of the two dust suction pipes are movably installed with a third air valve.

[0012] Due to the adoption of the above technical solution, the technical progress achieved by the present invention is:

[0013] The utility model cooperates with the two transmission components, so that the two cylindrical dust removal pipes are respectively in a rotating cleaning state and a stationary state, so as to prevent dust from being mixed in again during subsequent cleaning operations; at the same time, the electromagnetic telescopic rod drives the transmission sleeve to move, so that the motor can drive the cylindrical dust removal pipe to rotate, causing relative rotation between the brush and the cylindrical dust removal pipe, so that the dust on the cylindrical dust removal pipe is removed, and the cylindrical dust removal pipe can be recycled, ensuring that the cylindrical dust removal pipe can perform dust removal operations stably and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0016] Figure 3 It is a partial cross-sectional three-dimensional structural diagram of the motor part of the utility model;

[0017] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the protection tube portion of the present invention;

[0018] Figure 5 For this utility model Figure 4 A schematic diagram of the enlarged structure of the middle part A;

[0019] Figure 6 This is a schematic diagram of the three-dimensional structure of the protective tube portion of the utility model;

[0020] Figure 7 For this utility model Figure 6 Schematic diagram of the enlarged structure of part B in the middle.

[0021] In the figure: 1. Base plate; 2. Fixing frame; 3. Protective tube; 4. Power mechanism; 41. Motor; 42. Adapter; 43. Air distribution pipe; 44. Internal pipe; 45. Transmission assembly; 451. First gear ring; 452. Second gear ring; 453. Gear; 454. Card sleeve; 455. Transmission sleeve; 456. Insert rod; 457. Rotating plate; 458. Electromagnetic telescopic rod; 459. Linkage sleeve; 5. Cylindrical dust removal pipe; 6. Cleaning mechanism; 61. Support sleeve; 62. First support frame; 63. Second support frame; 64. Telescopic rod; 65. Brush; 66. Spring; 7. Pipe mechanism; 71. Inlet pipe; 72. Dust suction pipe; 73. Outlet pipe. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] Example 1:

[0024] like Figure 1 、 Figure 2 As shown, this embodiment provides a back-blowing dust removal device, including a base plate 1, three laterally distributed fixing frames 2 are fixedly connected to the upper side of the base plate 1, two protective tubes 3 symmetrically distributed on the left and right are fixedly connected on the side of the fixing frames 2 close to each other, and a power mechanism 4 is fixedly connected on the side of the fixing frame 2 away from the protective tube 3, and two cylindrical dust removal tubes 5 symmetrically distributed on the left and right are rotatably connected on the left and right sides of the fixing frame 2, and the cylindrical dust removal tubes 5 are located on the inner side of the protective tube 3, and a cleaning mechanism 6 is fixedly connected to the inner side of the two protective tubes 3, and a pipeline mechanism 7 is fixedly connected to the left side of the power mechanism 4 and the front and rear sides of the protective tube 3.

[0025] It should be noted that one-way air valves are provided on the sides of the two protective pipes 3 that are away from each other, so that outside air can only enter the inner side of the cylindrical dust removal pipe 5 from the outside.

[0026] like Figure 2 、 Figure 3 As shown, the power mechanism 4 includes a motor 41, the left side of the motor 41 is fixedly connected to the middle of the right side of the rightmost fixing frame 2, the output end of the motor 41 is fixedly connected to the air distribution pipe 43, the outer wall of the air distribution pipe 43 is rotatably connected to the inner side of the fixing frame 2, and the air distribution pipe 43 is located on the inner side of the cylindrical dust removal pipe 5, and the middle of the left side of the left side fixing frame 2 is fixedly connected to the adapter 42, and the left side of the air distribution pipe 43 is rotatably connected to the right side of the adapter 42.

[0027] It should be noted that the motor 41 drives the air distribution pipe 43 to rotate, and the gas to be filtered passes through the air distribution pipe 43. The air distribution pipe 43 sprays the gas. As the air distribution pipe 43 rotates, the gas is evenly sprayed on every part of the inner side of the cylindrical dust removal pipe 5, causing the cylindrical dust removal pipe 5 to perform dust removal operations on the gas.

[0028] like Figure 3 As shown, an internal tube 44 is fixedly connected to the middle part of the inner side of the air distribution tube 43, and the setting of the internal tube 44 divides the inner side of the air distribution tube 43 into two parts, left and right. When the inner side of the internal tube 44 is ventilated, the air distribution tube 43 on the outer side of the internal tube 44 cannot ventilate. When ventilation is carried out from the position between the internal tube 44 and the air distribution tube 43, the air distribution tube 43 on the outer side of the internal tube 44 can be ventilated, but other parts cannot be ventilated.

[0029] like Figure 3-Figure 5As shown, the sides of the two protective tubes 3 that are away from each other are rotatably connected to a transmission assembly 45, and the transmission assembly 45 includes a first gear ring 451, and the side of the first gear ring 451 that is close to each other is rotatably connected to the side of the protective tube 3 that is away from each other, and the outer wall of the cylindrical dust removal tube 5 is fixedly connected to the side close to the first gear ring 451, and the outer sides of the first gear ring 451 and the second gear ring 452 are meshed and connected with a number of annularly distributed gears 453, and the left and right gears 453 located on the same axis are fixedly connected on the side close to each other, and the gears 453 are rotatably connected to the wall of the protective tube 3 that is away from each other, and a clamping sleeve 454 is fixedly connected to the axis center of the side of the first gear ring 451 away from the protective tube 3, and a transmission sleeve 455 is movably sleeved on the inner side of the clamping sleeve 454, and a number of annularly distributed plug rods 456 are fixedly connected to the side of the transmission sleeve 455 close to the protective tube 3, and the outer side of the plug rod 456 is movably sleeved in the socket opened on the side of the protective tube 3 away from each other.

[0030] The insertion rod 456 is inserted into the insertion hole, so that the transmission sleeve 455 is fixed, and the transmission sleeve 455 fixes the cylindrical dust removal pipe 5 by relying on the first gear ring 451, the second gear ring 452 and the gear 453.

[0031] like Figure 4 、 Figure 5 As shown, the transmission sleeve 455 is rotatably connected to a rotating plate 457 on the side away from the protective tube 3, and the rotating plate 457 is fixedly connected to a plurality of annularly distributed electromagnetic telescopic rods 458 on the side away from the protective tube 3. The outer sides of the electromagnetic telescopic rods 458 are fixedly sleeved on the inner sides of the fixed frames 2 on the left and right sides, and the outer wall of the air distribution pipe 43 is fixedly sleeved near the left and right ends with a linkage sleeve 459, and the outer side of the linkage sleeve 459 is interactively sleeved on the inner side of the transmission sleeve 455.

[0032] The electromagnetic telescopic rod 458 is a device that uses electromagnetic force to control its extension and retraction. It is usually composed of components such as an electromagnet, a screw and a shell. Its working principle is to drive the screw to rotate through a motor, and the screw converts the rotational motion into linear motion, thereby pushing the load to extend and retract. The electromagnetic telescopic rod 458 relies on electromagnetic drive to move the rotating plate 457, causing the rotating plate 457 to drive the transmission sleeve 455 to move, causing the block on the outside of the linkage sleeve 459 to be stuck in the inner groove of the transmission sleeve 455, so that when the motor 41 drives the air distribution pipe 43 to rotate, it drives the first gear ring 451 to rotate, and relies on the gear 453 to rotate the second gear ring 452, thereby causing the cylindrical dust removal pipe 5 to rotate.

[0033] Example 2:

[0034] The only difference between this embodiment and embodiment 1 is that Figure 6 、 Figure 7As shown, the cleaning mechanism 6 includes a support sleeve 61, the left and right sides of the support sleeve 61 are fixedly connected to the middle of the side where the fixing frame 2 is close to each other, and the adapter 42 is located on the inner side of the support sleeve 61, and the support sleeve 61 is located on the inner side of the cylindrical dust removal pipe 5. The outer side of the support sleeve 61 is fixedly connected with several linearly distributed first support frames 62, and the inner side of the protective tube 3 is fixedly connected with several linearly distributed second support frames 63. Several first support frames 62 and second support frames 63 are fixedly connected to the side close to the cylindrical dust removal pipe 5 with several annularly distributed telescopic rods 64, and the telescopic rod 64 is fixedly connected to one end of the cylindrical dust removal pipe 5 with a brush 65. There are six brushes 65 distributed in a ring, and the inside and outside of the brushes 65 are divided into two layers, and the side where the brushes 65 are close to each other fits the inner and outer sides of the cylindrical dust removal pipe 5.

[0035] The support sleeve 61 only serves to support the first support frame 62, and the support sleeve 61 is a breathable structure, which does not affect the gas ejected from the air distribution pipe 43 passing through the support sleeve 61. When the cylindrical dust removal pipe 5 rotates, the inner and outer surfaces of the cylindrical dust removal pipe 5 pass through the brush 65, so that the dust adsorbed by the cylindrical dust removal pipe 5 is brushed out.

[0036] Further, such as Figure 7 As shown, springs 66 are movably sleeved on the outer sides of the plurality of telescopic rods 64 , and the springs 66 push the brushes 65 so that the brushes 65 are closely attached to the inner and outer sides of the cylindrical dust removal pipe 5 .

[0037] Example 3:

[0038] The difference between this embodiment and embodiment 1 or 2 is that Figure 1 、 Figure 2 As shown, the pipeline mechanism 7 includes an air inlet pipe 71, the right side of the air inlet pipe 71 is fixedly connected to the left side of the air distribution pipe 43, and two air inlet pipes 71 are distributed upper and lower on the left side of the air distribution pipe 43, the left ends of the two air inlet pipes 71 are connected by a first Y-shaped pipe, and the outer sides of the two air inlet pipes 71 are movably installed with a first air valve, the front sides of the two protective pipes 3 near the lower sides are fixedly connected with a dust suction pipe 72, the right ends of the two dust suction pipes 72 are connected by a second Y-shaped pipe, and the outer sides of the two dust suction pipes 72 are movably installed with a second air valve, the rear sides of the two protective pipes 3 near the lower sides are fixedly connected with an air outlet pipe 73, the right ends of the two air outlet pipes 73 are connected by a third Y-shaped pipe, and the outer sides of the two dust suction pipes 72 are movably installed with a third air valve.

[0039] It should be noted that when the left cylindrical dust removal pipe 5 is stationary and the right cylindrical dust removal pipe 5 is rotating, the first air valve on the lower air inlet pipe 71 is opened, the first air valve on the upper air inlet pipe 71 is closed, the second air valve on the left dust suction pipe 72 is closed, the second air valve on the right dust suction pipe 72 is closed, the third air valve on the left air outlet pipe 73 is opened, and the third air valve on the right air outlet pipe 73 is closed.

[0040] The working principle of the present invention is as follows: first, the motor 41 drives the air distribution pipe 43 to rotate, and the air to be filtered passes through the air distribution pipe 43, and the air distribution pipe 43 sprays the gas. As the air distribution pipe 43 rotates, it is evenly sprayed on every part of the inner side of the cylindrical dust removal pipe 5, so that the cylindrical dust removal pipe 5 performs dust removal operation on the gas. The setting of the built-in pipe 44 divides the inner side of the air distribution pipe 43 into two parts, left and right. When the inner side of the built-in pipe 44 is ventilated, the air distribution pipe 43 on the outer side of the built-in pipe 44 cannot exhaust air. When the position between the built-in pipe 44 and the air distribution pipe 43 has been ventilated, the air distribution pipe 43 on the outer side of the built-in pipe 44 can be ventilated, but other parts cannot be ventilated. The insertion rod 456 is stuck in the socket, causing the transmission sleeve 455 to be fixed. The first gear ring 451 rotates when the motor 41 is in motion, and the second gear ring 452 rotates when the gear 453 is in motion, thereby rotating the second gear ring 452. The second gear ring 452 rotates when the motor 41 is in motion, thereby rotating the second gear ring 452. When the left side of the dust collecting tube 5 is stationary and the right side of the dust collecting tube 5 is rotating, the first valve on the lower air inlet pipe 71 is opened, and the first valve on the upper air inlet pipe 71 is closed. The second air valve on the upper side of the dust suction pipe 72 on the left is closed, the second air valve on the upper side of the dust suction pipe 72 on the right is closed, the third air valve on the upper side of the air outlet pipe 73 on the left is opened, and the third air valve on the upper side of the air outlet pipe 73 on the right is closed. Through the cooperation of the two transmission components 45, one of the cylindrical dust removal pipes 5 rotates and is in a cleaning state, and the other is stationary. The two are opposed to each other, avoiding the problem of dust being mixed again during subsequent cleaning operations. Finally, the electromagnetic telescopic rod 458 relies on the electromagnetic drive to move the rotating plate 457, causing the rotating plate 457 to drive the transmission sleeve 455 to move, causing the outer block of the linkage sleeve 459 to be stuck in the inner groove of the transmission sleeve 455, so that the motor 41 drives the first gear ring when driving the air distribution pipe 43 to rotate. 451 rotates, and the second gear ring 452 rotates by means of the gear 453, thereby rotating the cylindrical dust removal pipe 5. When the cylindrical dust removal pipe 5 rotates, the inner and outer surfaces of the cylindrical dust removal pipe 5 pass through the brush 65, so that the dust adsorbed by the cylindrical dust removal pipe 5 is brushed out, and the spring 66 pushes the brush 65, so that the brush 65 is close to the inner and outer sides of the cylindrical dust removal pipe 5, and the transmission sleeve 455 is driven to move by the electromagnetic telescopic rod 458, so that the motor 41 can drive the cylindrical dust removal pipe 5 to rotate, causing relative rotation between the brush 65 and the cylindrical dust removal pipe 5, so that the dust on the cylindrical dust removal pipe 5 is removed, and then the cylindrical dust removal pipe 5 can be recycled, ensuring that the cylindrical dust removal pipe 5 can perform dust removal operations stably and efficiently.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A back-blowing dust removal device, comprising a substrate (1), characterized in that: Three laterally distributed fixing frames (2) are fixedly connected to the upper side of the base plate (1); two symmetrically distributed protective tubes (3) are fixedly connected to the sides of the fixing frames (2) that are close to each other; a power mechanism (4) is fixedly connected to the sides of the fixing frames (2) that are away from the protective tubes (3); two symmetrically distributed cylindrical dust removal pipes (5) are rotatably connected to the left and right sides of the fixing frames (2); the cylindrical dust removal pipes (5) are located inside the protective tubes (3); a cleaning mechanism (6) is fixedly connected to the inside of the two protective tubes (3); and a pipeline mechanism (7) is fixedly connected to the left side of the power mechanism (4) and the front and rear sides of the protective tubes (3).

2. The back-flushing dust removal device according to claim 1, characterized in that: The power mechanism (4) comprises a motor (41), the left side of the motor (41) being fixedly connected to the middle portion of the right side of the rightmost fixing frame (2).

3. The back-blowing dust removal device according to claim 2, characterized in that: The output end of the motor (41) is fixedly connected to an air distribution pipe (43), the outer wall of the air distribution pipe (43) is rotatably connected to the inner side of the fixed frame (2), and the air distribution pipe (43) is located on the inner side of the cylindrical dust removal pipe (5), and the middle part of the left side of the fixed frame (2) located on the leftmost side is fixedly connected to an adapter (42), and the left side of the air distribution pipe (43) is rotatably connected to the right side of the adapter (42); and the middle part of the inner side of the air distribution pipe (43) is fixedly connected to a built-in pipe (44).

4. The back-flushing dust removal device according to claim 3, characterized in that: The two sides of the two protective tubes (3) that are away from each other are both rotatably connected to a transmission assembly (45), and the transmission assembly (45) includes a first gear ring (451), and the side of the first gear ring (451) that is close to each other is rotatably connected to the side of the protective tube (3) that is away from each other. The outer wall of the cylindrical dust removal tube (5) is fixedly connected to the side close to the first gear ring (451) with a second gear ring (452), and the outer sides of the first gear ring (451) and the second gear ring (452) are meshed and connected with a plurality of annularly distributed gears (453), and the two coaxial left and right gears (453) are fixedly connected on the sides close to each other, and the gears (453) are rotatably connected to the wall of the protective tube (3) that is away from each other.

5. The back-flushing dust removal device according to claim 4, characterized in that: A clamping sleeve (454) is fixedly connected to the axis of the side of the first gear ring (451) away from the protective tube (3); a transmission sleeve (455) is movably sleeved on the inner side of the clamping sleeve (454); a plurality of annularly distributed insertion rods (456) are fixedly connected to the side of the transmission sleeve (455) close to the protective tube (3); and the outer sides of the insertion rods (456) are movably sleeved in the insertion holes opened on the side of the protective tube (3) away from each other.

6. The back-flushing dust removal device according to claim 5, characterized in that: The transmission sleeve (455) is rotatably connected to a rotating plate (457) on the side away from the protective tube (3); the rotating plate (457) is fixedly connected to a plurality of annularly distributed electromagnetic telescopic rods (458) on the side away from the protective tube (3); the outer sides of the electromagnetic telescopic rods (458) are fixedly sleeved on the inner sides of the fixed frames (2) on the left and right sides; the outer wall of the air distribution pipe (43) is fixedly sleeved on the positions near the left and right ends, and the outer side of the linkage sleeve (459) is interactively sleeved on the inner side of the transmission sleeve (455).

7. The back-flushing dust removal device according to claim 3, characterized in that: The cleaning mechanism (6) includes a support sleeve (61), the left and right sides of the support sleeve (61) are fixedly connected to the middle of one side of the fixed frame (2) close to each other, and the adapter (42) is located on the inner side of the support sleeve (61), and the support sleeve (61) is located on the inner side of the cylindrical dust removal pipe (5). The outer side of the support sleeve (61) is fixedly connected to a plurality of linearly distributed first support frames (62), and the inner side of the protective pipe (3) is fixedly connected to a plurality of linearly distributed second support frames (63), and a plurality of the first support frames (62) and the second support frames (63) are fixedly connected to a plurality of annularly distributed telescopic rods (64) on the side close to the cylindrical dust removal pipe (5).

8. The back-flushing dust removal device according to claim 7, characterized in that: The outer sides of the plurality of telescopic rods (64) are movably sleeved with springs (66), and one end of the telescopic rod (64) close to the cylindrical dust removal pipe (5) is fixedly connected with a brush (65).

9. The back-flushing dust removal device according to claim 3, characterized in that: The pipeline mechanism (7) comprises two air intake pipes (71), and the left ends of the two air intake pipes (71) are connected by a first Y-shaped pipe, and the front sides of the two protective pipes (3) near the lower sides are fixedly connected with dust suction pipes (72), and the right ends of the two dust suction pipes (72) are connected by a second Y-shaped pipe.

10. The back-flushing dust removal device according to claim 9, characterized in that: A first air valve is movably mounted on the outer sides of the two air inlet pipes (71), a second air valve is movably mounted on the outer sides of the two dust suction pipes (72), an air outlet pipe (73) is fixedly connected to the rear side of the two protective pipes (3) near the lower side, the right ends of the two air outlet pipes (73) are connected through a third Y-shaped pipe, and a third air valve is movably mounted on the outer sides of the two dust suction pipes (72).

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