Ash channel cleaning device

Abstract

The utility model relates to an ash channel cleaning device which comprises a cleaning mechanism and a collecting mechanism which are installed on an ash channel, the cleaning mechanism comprises a first driving device, a first transmission assembly and a plurality of cleaning assemblies, and each cleaning assembly comprises a brush abutting against the inner wall of the ash channel. The first driving device is in transmission connection with the multiple sets of cleaning assemblies through the first transmission assembly so as to be used for driving the brushes in the cleaning assemblies to move in the axial direction of the ash channel, the collecting mechanism comprises a second driving device and a collecting assembly, the collecting assembly is movably arranged at one end of the ash channel, and the second driving device is used for driving the brushes in the cleaning assemblies to move in the axial direction of the ash channel. The second driving device is in transmission connection with the collecting assembly so as to be used for driving the collecting assembly to open or close an opening in one end of the ash channel. By means of the technical scheme, the dust in the dust channel can be effectively cleaned through the dust channel cleaning device.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of thermal power generation equipment, in particular, to a dust channel cleaning device. BACKGROUND

[0002] Currently, fly ash generated in thermal power plant production is mainly collected by electric dust removal and bag dust removal, and then transported to the ash storage by the pneumatic ash conveying system for comprehensive utilization. However, in the long-term use process, fly ash is easy to adhere to the inner wall of the dust channel, causing blockage, affecting the safe and stable operation of the unit.

[0003] In the related art, most of the pneumatic ash conveying pipelines of thermal power plants have single structure and single function, which is not convenient for self-cleaning of the inner wall of the pipeline, thereby causing thick dust accumulation on both sides of the pipeline for a long time, which may cause poor smoke exhaust of the pipeline, pipeline blockage, and problems such as smoke turning in the pipeline and being unable to be discharged. When the dust is cleaned by manual cleaning, the dust is easy to fly around, affecting the surrounding environment and other problems. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present disclosure is to provide a dust channel cleaning device which can effectively clean the dust in the dust channel.

[0005] In order to achieve the above purpose, the present disclosure provides a dust channel cleaning device, which comprises a cleaning mechanism and a collecting mechanism installed on the dust channel. The cleaning mechanism comprises a first driving device, a first transmission assembly and a plurality of cleaning assemblies. Each cleaning assembly comprises a brush abutting against the inner wall of the dust channel. The first driving device is in transmission connection with the plurality of cleaning assemblies through the first transmission assembly, so as to drive the brush in each cleaning assembly to move along the axial direction of the dust channel. The collecting mechanism comprises a second driving device and a collecting assembly. The collecting assembly is movably arranged at one end of the dust channel. The second driving device is in transmission connection with the collecting assembly, so as to drive the collecting assembly to open or close the opening at one end of the dust channel.

[0006] Optionally, the first driving device is configured as a rotary motor. The first transmission assembly comprises a first mounting bracket, a second mounting bracket, a movable bracket and a first screw nut structure. The first mounting bracket and the second mounting bracket extend along the axial direction of the dust channel and are arranged on the inner walls of the opposite sides of the dust channel. A first screw rod in the first screw nut structure is rotatably supported on the first mounting bracket and is in transmission connection with the first driving device. The movable bracket comprises a bracket body and a first movable rod and a second movable rod connected to both ends of the bracket body. The first movable rod is connected with a first nut in the first screw nut structure. The second movable rod is slidingly connected to the second mounting bracket. The plurality of cleaning assemblies are connected with the bracket body.

[0007] Optionally, the movable frame further comprises a first connecting rod arranged along the axial direction of the ash channel, one end of the first connecting rod is fixedly connected with the frame body, and the other end is provided with a connecting block, a plurality of cleaning assemblies are respectively installed on different side surfaces of the connecting block, and the plurality of cleaning assemblies are used for cleaning a plurality of inner walls of the ash channel.

[0008] Optionally, the cleaning assembly further comprises a spring telescopic rod, one end of the spring telescopic rod is fixedly connected with the connecting block, and the other end is hingedly connected with a fixing plate, and the brush is rotatably supported on the fixing plate.

[0009] Optionally, the collecting mechanism comprises a fan assembly and a second connecting rod, the second connecting rod is arranged along the axial direction of the ash channel, the collecting assembly and the fan assembly are respectively arranged at two ends of the second connecting rod, the second driving device is configured as a linear motor and is installed on the ash channel, and the second driving device is in transmission connection with the collecting assembly and the fan assembly through the second connecting rod.

[0010] Optionally, the collecting assembly comprises a collecting plate and a movable plate, the collecting plate is used for opening or closing an opening at one end of the ash channel and is provided with a plurality of through holes, the through holes penetrate through two sides of the collecting plate along the axial direction of the ash channel, and the movable plate is movably connected with the collecting plate and is used for avoiding or shielding the through holes.

[0011] Optionally, the fan assembly comprises a side plate and a plurality of fans, two ends of the second connecting rod are fixedly connected with the collecting plate and the side plate respectively, and the plurality of fans are arranged on the side plate and are arranged towards the collecting assembly.

[0012] Optionally, the collecting assembly comprises a third driving device and a second transmission assembly, the third driving device is in transmission connection with the movable plate through the second transmission assembly, and the third driving device drives the movable plate to open or shield the through holes.

[0013] Optionally, the second transmission assembly comprises a second screw rod and a second nut, the third driving device is configured as a motor and is fixed on the collecting plate, the third driving device is in transmission connection with the second screw rod, the collecting plate is provided with an accommodating groove, the movable plate is accommodated in the accommodating groove and is in transmission connection with the second nut.

[0014] Optionally, the ash channel cleaning device comprises a connecting block, a plurality of groups of the cleaning assemblies are installed on the connecting block, the second connecting rod penetrates through the connecting block to be connected with the collecting plate, and the connecting block is slidable along the extension direction of the second connecting rod.

[0015] Through the above technical solution, the ash channel cleaning device provided in this disclosure includes a cleaning mechanism comprising multiple sets of cleaning components capable of moving along the ash channel axial direction. Each set of cleaning components includes a brush that abuts against the inner wall of the ash channel. Thus, the first driving device drives the brush to move along the ash channel axial direction via the first transmission component, thereby achieving thorough cleaning of the inner wall of the ash channel. Furthermore, a collection mechanism is provided at one end of the ash channel opening. The collection mechanism can be opened or closed by the collection component driven by the second driving device. During the operation of the cleaning mechanism, the second driving device controls the collection component to close the opening to prevent dust from escaping from the opening. During normal use of the ash channel, the second driving device controls the collection component to open the opening to avoid affecting the normal use of the ash channel, ultimately achieving effective cleaning of the dust within the ash channel.

[0016] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a first structural schematic diagram of the ash channel cleaning device provided in the embodiments of this disclosure;

[0019] Figure 2 This is a second structural schematic diagram of the ash channel cleaning device provided in the embodiments of this disclosure;

[0020] Figure 3 This is a third structural schematic diagram of the ash channel cleaning device provided in the embodiments of this disclosure;

[0021] Figure 4 This is an enlarged schematic diagram of point A of the ash channel cleaning device provided in this embodiment of the present disclosure;

[0022] Figure 5 This is a fourth structural schematic diagram of the ash channel cleaning device provided in the embodiments of this disclosure;

[0023] Figure 6 This is a cross-sectional view of the ash channel cleaning device provided in the embodiments of this disclosure.

[0024] Explanation of reference numerals in the attached figures

[0025] 1-cleaning mechanism; 11-first driving device; 121-first mounting frame; 122-second mounting frame; 123-moving frame; 1231-first moving rod; 1232-second moving rod; 1233-frame body; 1234-first connecting rod; 1235-connecting block; 124-first screw rod; 13-cleaning assembly; 131-brush; 132-spring telescopic rod; 133-fixing plate; 2-collecting mechanism; 21-second driving device; 22-collecting assembly; 221-collecting plate; 2211-through hole; 2212-receiving groove; 222-moving plate; 223-third driving device; 224-second screw rod; 23-fan assembly; 231-side plate; 232-fan; 24-second connecting rod; 3-ash channel; 31-opening. DETAILED DESCRIPTION

[0026] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0027] In the present disclosure, the orientation words such as "inner" and "outer" used herein generally refer to "inner" and "outer" relative to the self outline of the corresponding component, and the terms "first", "second" and the like are used to distinguish one element from another element, and do not have sequential and important meanings. In addition, in the following description, the same reference numerals in different drawings represent the same or similar elements unless otherwise explained, and the above definitions are only used to explain and illustrate the present disclosure, and should not be understood as limiting the present disclosure.

[0028] According to the specific embodiments provided by the present disclosure, with reference to Figures 1-6 According to the specific embodiments provided by the present disclosure, with reference to

[0029] According to the technical scheme, in the ash channel cleaning device provided by the present disclosure, the cleaning mechanism 1 comprises a plurality of cleaning assemblies 13 capable of moving axially along the ash channel 3, each of the cleaning assemblies 13 comprises a brush 131 abutting against the inner wall of the ash channel 3, so that the first driving device 11 drives the brush 131 to move axially along the ash channel 3 through the first transmission assembly, thereby achieving thorough cleaning of the inner wall of the ash channel 3. In addition, the opening 31 at one end of the ash channel 3 is also provided with a collecting mechanism 2, the collecting mechanism 2 can drive the collecting assembly 22 to open or close the opening 31 through the second driving device 21, so that during the operation of the cleaning mechanism 1, the second driving device 21 controls the collecting assembly 22 to move to close the opening 31, so as to avoid the dust in the ash channel 3 from escaping from the opening 31, and during the normal use of the ash channel 3, the second driving device 21 controls the collecting assembly 22 to open the opening 31, so as to avoid affecting the normal use of the ash channel 3, thereby achieving effective cleaning of the dust in the ash channel 3.

[0030] In the ash channel cleaning device provided by the present disclosure, the first transmission assembly can be constructed in any suitable form to achieve the purpose of driving the cleaning assembly 13 to move axially along the ash channel 3. The present disclosure does not make specific limitations thereto. As an exemplary embodiment, with reference to Figure 3 and Figure 4As shown in the figures, the first driving device 11 can be configured as a rotary motor, and the first transmission assembly can include a first mounting frame 121, a second mounting frame 122, a movable frame 123, and a first screw-nut structure. The first mounting frame 121 and the second mounting frame 122 can extend along the axial direction of the ash channel 3 and be arranged on the inner walls of the opposite sides of the ash channel 3. The first screw rod 124 in the first screw-nut structure is rotatably supported on the first mounting frame 121 and is in transmission connection with the first driving device 11. The movable frame 123 can include a frame body 1233 and a first movable rod 1231 and a second movable rod 1232 connected to the two ends of the frame body 1233. The first movable rod 1231 is connected with the first nut in the first screw-nut structure, and the second movable rod 1232 is slidingly connected to the second mounting frame 122. A plurality of cleaning assemblies 13 are connected to the frame body 1233. The rotary motor can drive the first screw rod 124 in the first screw-nut structure to rotate relative to the first mounting frame 121. The first movable rod 1231 is connected with the first nut in the first screw-nut structure, so as to be driven by the first screw rod 124 to move along the axial direction of the first screw rod 124. The first mounting frame 121 is arranged along the axial direction of the ash channel 3 on the inner wall of the ash channel 3, and the first screw rod 124 is rotatably supported on the first mounting frame 121, i.e., the first screw rod 124 is also arranged along the axial direction of the ash channel 3. Thus, the first movable rod 1231 can drive the frame body 1233 to move along the axial direction of the ash channel 3 under the rotation of the first screw rod 124. Since the plurality of cleaning assemblies 13 are connected to the frame body 1233, the plurality of cleaning assemblies 13 can move along the axial direction of the ash channel 3. In addition, the second mounting frame 122 is arranged along the axial direction of the ash channel 3, and the second movable frame 123 is slidingly connected to the second mounting frame 122 to drive the frame body 1233 to move in cooperation with the first movable rod 1231, thereby increasing the reliability of the frame body 1233 in driving the cleaning assemblies 13 to move.

[0031] In some other embodiments, the first driving device 11 can also be configured as a cylinder, including a cylinder body and a piston rod. The piston rod can be arranged along the axial direction of the ash channel 3 and can be elongated or shortened relative to the cylinder body. The piston rod is connected with the frame body 1233, and the cleaning assemblies 13 can also move along the axial direction of the ash channel 3, which is not specifically limited in the present disclosure.

[0032] In the ash channel cleaning device provided by the present disclosure, the movable frame 123 can be configured in any suitable form to achieve connection with the plurality of cleaning assemblies 13, which is not specifically limited in the present disclosure. As an exemplary embodiment, referring to Figure 3As shown in FIG. 12, the movable frame 123 can further include a first connecting rod 1234 arranged along the axial direction of the flue 3, one end of the first connecting rod 1234 can be fixedly connected with the frame body 1233, and the other end can be provided with a connecting block 1235, and a plurality of cleaning assemblies 13 can be respectively installed on different side surfaces of the connecting block 1235 for cleaning a plurality of inner walls of the flue 3. When the frame body 1233 moves under the action of the first driving device 11, the connecting block 1235 and the plurality of cleaning assemblies 13 can be driven to move through the first connecting rod 1234, that is, the plurality of cleaning assemblies 13 can be driven to move. The arrangement of the first connecting rod 1234 can make the connecting block 1235 and the plurality of cleaning assemblies 13 extend to a position deep in the flue 3 where dust is easily attached, and the plurality of cleaning assemblies 13 installed on different side surfaces of the connecting block 1235 can make the brushes 131 of the plurality of cleaning assemblies 13 contact the inner walls of the flue 3 in all directions, thereby achieving thorough cleaning of the flue 3.

[0033] The cleaning assembly 13 can be connected with the connecting block 1235 in any suitable manner, and the present disclosure does not make specific limitations thereto. As an exemplary embodiment, reference is made to FIG. 12. Figure 5 As shown in FIG. 12, the cleaning assembly 13 can further include a spring telescopic rod 132, one end of the spring telescopic rod 132 can be fixedly connected with the connecting block 1235, and the other end can be hingedly connected with a fixed plate 133, and the brush 131 can be rotatably supported on the fixed plate 133. In this way, in actual use, the spring telescopic rod 132 can be arranged in a compressed state to provide a pushing force in the extension direction of the spring for the fixed plate 133, so as to ensure that the brush 131 contacts the inner walls of the flue 3 as much as possible, thereby achieving thorough cleaning of the inner walls of the flue 3.

[0034] In the flue cleaning device provided by the present disclosure, the collecting mechanism 2 can be constructed in any suitable manner, and the present disclosure does not make specific limitations thereto. As an exemplary embodiment, reference is made to FIG. 13. Figure 5 As shown in FIG. 13, the collecting mechanism 2 can include a fan 232 assembly 23 and a second connecting rod 24, the second connecting rod 24 can be arranged along the axial direction of the flue 3, the collecting assembly 22 and the fan 232 assembly 23 can be respectively arranged at two ends of the second connecting rod 24, the second driving device 21 can be constructed as a linear motor and installed on the flue 3, and the second driving device 21 can be in driving connection with the collecting assembly 22 and the fan 232 assembly 23 through the second connecting rod 24. In this way, the second driving device 21 can work and drive the collecting assembly 22 to move towards or away from the flue 3 through the second connecting rod 24, thereby achieving opening or closing of the one end opening 31 of the flue 3, and at the same time, the second driving device 21 can also drive the fan 232 assembly 23 to move together with the collecting assembly 22, so as to fix the position between the fan 232 assembly 23 and the collecting assembly 22, facilitate blowing dust by the fan 232 assembly 23 to the collecting assembly 22, and achieve effective collection of dust in the flue 3.

[0035] In the ash channel cleaning apparatus provided in this disclosure, the collection component 22 can be constructed in any suitable form, and this disclosure does not impose any specific limitations on it. As an exemplary embodiment, refer to... Figure 5 and Figure 6 As shown, the collection assembly 22 may include a collection plate 221 and a movable plate 222. The collection plate 221 can be used to open or close the opening 31 at one end of the ash channel 3 and has a plurality of through holes 2211. The through holes 2211 can pass through both sides of the collection plate 221 along the axial direction of the ash channel 3. The movable plate 222 is movably connected to the collection plate 221 to open or block the through holes 2211. In other words, when the ash channel 3 does not need cleaning, the collecting component 22 can be controlled to move away from the end of the ash channel 3 to open the opening 31, and the ash channel 3 can be ventilated normally. When the ash channel 3 needs cleaning, the collecting component 22 can be controlled to open or close the opening 31 according to the amount of dust in the ash channel 3 (i.e., the cleaning interval of the ash channel 3). At the same time, the movable plate 222 can be controlled to avoid or block the through hole 2211. Specifically, under the premise that the collecting component 22 closes the opening 31, when there is little dust in the ash channel 3, the movable plate 222 is controlled to avoid the through hole 2211, so as to ensure that the ash channel 3 has a certain ventilation capacity while minimizing the dust from escaping outside the ash channel 3. When there is a lot of dust in the ash channel 3, the movable plate 222 is controlled to block the through hole 2211 to prevent the dust from escaping. In this embodiment, through cooperation with the fan 232 component 23, the dust can be blown toward the collecting plate 221 and adhere to the surface of the movable plate 222 through the through hole 2211, thereby achieving the collection of dust.

[0036] In the ash channel cleaning apparatus provided in this disclosure, the fan 232 assembly 23 can be constructed in any suitable form, and this disclosure does not impose any specific limitations on it. As an exemplary embodiment, refer to... Figure 1 , Figure 2 and Figure 5 As shown, the fan 232 assembly 23 may include a side plate 231 and multiple fans 232. The two ends of the second connecting rod 24 can be fixedly connected to the collection plate 221 and the side plate 231 respectively. The multiple fans 232 are spaced apart on the side plate 231 and arranged towards the collection assembly 22. In this way, the fans 232 can blow the dust in the ash channel 3 from one end of the ash channel 3 to the other end of the ash channel 3, that is, the position of the collection assembly 22, so that the dust adheres to the surface of the movable plate 222 as much as possible, thereby achieving effective dust collection.

[0037] In the ash channel cleaning device provided in this disclosure, the movable plate 222 can avoid or block the through hole 2211 in any suitable manner, and this disclosure does not impose specific limitations in this regard. As an exemplary embodiment, refer to... Figure 6As shown in FIG. 22, the collecting assembly 22 can include a third driving device 223 and a second transmission assembly, the third driving device 223 can be in transmission connection with the movable plate 222 through the second transmission assembly to drive the movable plate 222 to open or shield the through hole 2211. That is, the third driving device 223 controls the movable plate 222 to move relative to the collecting plate 221 through the second transmission assembly, so as to realize the avoidance or shielding of the through hole 2211 on the collecting plate 221 by the movable plate 222.

[0038] The second transmission assembly can be configured in any suitable form, and the present disclosure does not make specific limitations thereto. As an exemplary embodiment, reference is made to Figure 6 As shown in FIG. 22, the second transmission assembly can include a second screw rod 224 and a second nut, the third driving device 223 can be configured as a motor and fixed on the collecting plate 221, the third driving device 223 can be in transmission connection with the second screw rod 224, the collecting plate 221 can be provided with a receiving groove 2212, and the movable plate 222 is received in the receiving groove 2212 and in transmission connection with the second nut. That is, the third driving device 223 can drive the second screw rod 224 to rotate to drive the second nut to move along the axial direction of the second screw rod 224, and in turn drive the movable plate 222 to move along the axial direction of the second screw rod 224, so that the movable plate 222 can move close to or away from the collecting plate 221, when the movable plate 222 moves away from the collecting plate 221 and extends out of the receiving groove 2212, the through hole 2211 is opened, and when the movable plate 222 moves close to the collecting plate 221 and retracts into the receiving groove 2212, the through hole 2211 is closed.

[0039] In the ash channel cleaning device provided by the present disclosure, as an exemplary embodiment, reference is made to Figure 3 and Figure 5 As shown in FIG. 12 and FIG. 13, the ash channel 3 cleaning device includes a connecting block 1235, a plurality of cleaning assemblies 13 can be installed on the connecting block 1235, the second connecting rod 24 can pass through the connecting block 1235 to be connected with the collecting plate 221, and the connecting block 1235 can slide along the extension direction of the second connecting rod 24. That is, when the second driving device 21 drives the second connecting rod 24 to move and in turn drives the collecting assembly 22 and the fan 232 assembly 23 to move, the second connecting rod 24 can move relative to the connecting block 1235, or when the first driving device 11 drives the movable frame 123 to move and in turn drives the connecting block 1235 to move, the connecting block 1235 can move relative to the second connecting rod 24, so that the movement of the cleaning mechanism 1 and the collecting mechanism 2 is isolated from each other and does not affect each other, realizing the independent control of the movement of the cleaning mechanism 1 and the collecting mechanism 2.

[0040] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0041] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0042] In addition, various different embodiments of the present disclosure can also be combined in any appropriate manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed in the present disclosure.

Claims

1. A flue cleaning device, characterised in that, The cleaning mechanism and the collecting mechanism are installed on the ash channel, The cleaning mechanism comprises a first driving device, a first transmission assembly and a plurality of cleaning assemblies, each of the cleaning assemblies comprises a brush abutting against the inner wall of the ash channel, the first driving device is in transmission connection with the plurality of cleaning assemblies through the first transmission assembly, so as to drive the brush in each of the cleaning assemblies to move along the axial direction of the ash channel, The collecting mechanism comprises a second driving device and a collecting assembly, the collecting assembly is movably arranged at one end of the ash channel, the second driving device is in transmission connection with the collecting assembly, so as to drive the collecting assembly to open or close the opening at one end of the ash channel.

2. The ash chute cleaning device of claim 1, wherein, The first driving device is a rotary motor, the first transmission assembly comprises a first mounting frame, a second mounting frame, a movable frame and a first screw nut structure, the first mounting frame and the second mounting frame extend along the axial direction of the ash channel and are arranged on the inner walls of the opposite sides of the ash channel, a first screw rod in the first screw nut structure is rotatably supported on the first mounting frame and is in transmission connection with the first driving device, the movable frame comprises a frame body and a first movable rod and a second movable rod connected to the two ends of the frame body, the first movable rod is connected with a first nut in the first screw nut structure, the second movable rod is slidingly connected to the second mounting frame, and a plurality of the cleaning assemblies are connected with the frame body.

3. A flue cleaning device according to claim 2, characterised in that The movable frame further comprises a first connecting rod arranged along the axial direction of the ash channel, one end of the first connecting rod is fixedly connected with the frame body, the other end of the first connecting rod is provided with a connecting block, and a plurality of the cleaning assemblies are respectively arranged on different side surfaces of the connecting block, so as to clean a plurality of inner walls of the ash channel.

4. A flue cleaning device according to claim 3, characterised in that The cleaning assembly further comprises a spring telescopic rod, one end of the spring telescopic rod is fixedly connected with the connecting block, the other end of the spring telescopic rod is hingedly connected with a fixed plate, and the brush is rotatably supported on the fixed plate.

5. Ash channel cleaning device according to any of claims 1-4, characterized in that The collecting mechanism comprises a fan assembly and a second connecting rod, the second connecting rod is arranged along the axial direction of the ash channel, the collecting assembly and the fan assembly are respectively arranged at the two ends of the second connecting rod, the second driving device is a linear motor and is installed on the ash channel, and the second driving device is in transmission connection with the collecting assembly and the fan assembly through the second connecting rod.

6. A flue cleaning device according to any one of claim 5, characterised in that, The collecting assembly comprises a collecting plate and a movable plate, the collecting plate is used for opening or closing the opening at one end of the ash channel and is provided with a plurality of through holes, the through holes penetrate through the two sides of the collecting plate along the axial direction of the ash channel, and the movable plate is movably connected with the collecting plate, so as to avoid or shield the through holes.

7. A flue cleaning device according to claim 6, characterised in that The fan assembly comprises a side plate and a plurality of fans, the two ends of the second connecting rod are fixedly connected with the collecting plate and the side plate respectively, a plurality of the fans are arranged on the side plate in a spaced manner and face the collecting assembly.

8. The ash chute cleaning device of claim 6, wherein, The collecting assembly comprises a third driving device and a second transmission assembly, the third driving device is in transmission connection with the movable plate through the second transmission assembly, so as to drive the movable plate to open or shield the through holes.

9. A flue cleaning device according to claim 8, characterised in that The second transmission assembly comprises a second screw rod and a second nut, the third driving device is configured as an electric motor and is fixed on the collecting plate, the third driving device is in transmission connection with the second screw rod, and the collecting plate is provided with a containing groove.

10. The ash chute cleaning device of claim 7, wherein, The ash channel cleaning device comprises a connecting block, a plurality of groups of the cleaning assemblies are installed on the connecting block, the second connecting rod passes through the connecting block to be connected with the collecting plate, and the connecting block is slidable along the extension direction of the second connecting rod.

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