A dust cleaning device, dust removal system and dust removal method

Abstract

This invention, entitled "A Dust Collection Device, Dust Removal System, and Dust Removal Method," belongs to the technical field of dust collection devices. The technical problem to be solved is the short service life of the scraper component in the cleaning device. The key technical solution is a cleaning device applied to a pipe with a flow channel. It includes a dust collection detector, an adjustment component, and a dust removal component located within the flow channel. The dust collection detector detects the thickness of the dust accumulation on the inner wall of the flow channel. The adjustment component includes a telescopic component with a fixed end and a telescopic end, and a movable component connected to the fixed end of the telescopic component. The movable component drives the telescopic component to move axially along the flow channel. The dust removal component includes a scraper component connected to the telescopic end of the telescopic component. The telescopic component drives the scraper component to move radially along the flow channel. The dust collection detector is electrically connected to the telescopic component. By adjusting the position of the scraper component within the flow channel, it advances layer by layer to increase the contact thickness with the dust accumulation, allowing the adhered dust to be removed layer by layer, avoiding damage to the scraper component due to excessive scraping.

Description

Technical Field

[0001] This invention relates to the field of dust removal devices, and in particular to a dust removal device, a dust removal system, and a dust removal method. Background Technology

[0002] Currently, in continuous industrial production processes such as metallurgy, chemicals, and building materials, pipeline dust collection systems are typically installed to collect, transport, and treat dust-laden gases. These systems use negative pressure suction or induced draft to transport dust-laden fumes generated during production through a pipeline network to centralized dust collection equipment for purification. Their operational status directly affects the production environment and whether pollutant emissions meet environmental protection requirements. Therefore, the ability of the dust collection pipeline network to maintain stable and unobstructed operation over the long term is one of the key factors in ensuring the continuity of industrial production and environmental compliance.

[0003] However, in actual production operations, due to various factors such as production load adjustments and changes in operating conditions, the gas flow rate and wind speed within the dust collection pipeline network fluctuate and are difficult to maintain within the ideal range for extended periods. When the pipeline network operates at low wind speeds for a prolonged period, the airflow's ability to carry dust particles decreases, causing dust to settle and gradually accumulate within the pipeline. As the accumulated dust continues, it reduces the effective ventilation cross-section of the pipeline and increases the system's operating resistance, thereby reducing dust collection efficiency and, in severe cases, affecting the normal operation of the dust collection system.

[0004] To address the problem of dust accumulation in pipelines, existing technologies primarily rely on manual cleaning, while some mechanical cleaning solutions depend on rotary brushes or gas purging. The former typically requires personnel to enter the pipeline during boiler shutdowns or maintenance, resulting in high labor intensity and low safety. The latter, while relatively simple in structure, generally suffers from low cleaning efficiency, uneven cleaning, and limited adaptability to changes in operating conditions; some solutions still require manual intervention. These cleaning methods struggle to simultaneously ensure effective cleaning while maintaining system stability and reliability, failing to meet the requirements for long-term stable operation of dust collection pipelines.

[0005] Relevant patent documents retrieved:

[0006] This document, published in China (CN117266076B) on December 22, 2023, discloses a jet-type cleaning device and snowplow, belonging to the field of cleaning equipment technology. The jet-type cleaning device includes a mounting base, a frame, a first drive component, and a rotating shaft connected to the first drive component. The rotating shaft has an internal channel connected to jet nozzles, and spiral blades are arranged externally on the shaft. Brushes are fixedly connected to the edges of the spiral blades. An air pump is also provided on the mounting base to supply air to the internal channel of the rotating shaft. During operation, by driving the rotating shaft to rotate, the spiral blades and brushes rotate synchronously, scraping and brushing away impurities adhering to the surface being cleaned.

[0007] The document, published in China (CN114803521B) on July 29, 2022, discloses a pneumatic ash conveying pipeline for a thermal power plant. It includes a horizontal pipeline and a vertical pipeline, with a rotating shaft at a bend in the pipeline's inner cavity. A reciprocating screw is installed on one side of the horizontal pipeline's inner cavity, with a scraping component connected to its end. This scraping component is used to clean dust adhering to the pipeline's inner wall. Simultaneously, an anti-clogging component is rotatably connected to the side wall of the rotating shaft to reduce wear on the pipeline's inner wall caused by dust accumulation and airflow impact.

[0008] The prior art represented by the aforementioned documents has at least the following unresolved technical problems or defects: The prior art represented by CN117266076B mainly relies on rotating spiral blades and brushes to mechanically scrape and brush away attached impurities, with continuous rotational contact as the primary cleaning method. Relevant evidence suggests that in practical applications, the contact state between the cleaning component and the surface being cleaned is relatively fixed, limiting its adaptability to different levels of impurity adhesion under varying working conditions. When impurities are thick or unevenly distributed, the cleaning component is prone to stress concentration, resulting in unstable cleaning effects and easy wear and damage to the component, making it difficult to balance cleaning efficiency with structural reliability.

[0009] The prior art represented by CN114803521B uses a reciprocating screw to drive a scraping component to move within the pipe cavity, achieving mechanical scraping of dust adhering to the pipe's inner wall. Relevant evidence suggests that this technical solution also uses a fixed-structure scraping component for contact cleaning of the pipe's inner wall. The cleaning process relies primarily on direct contact between the scraping component and the pipe's inner wall. When the dust accumulation thickness varies significantly, the scraping component is prone to experiencing large reaction forces, posing a risk of accelerated wear or even damage. Furthermore, the controllability and adaptability of the cleaning process are insufficient.

[0010] It is evident that existing cleaning technologies mostly employ brushes or scrapers with fixed structures, achieving cleaning through direct contact with the inner walls of channels or pipes. Because the interaction between the cleaning components and the inner wall is relatively fixed, it is difficult to adapt to changes in the dust accumulation state under different operating conditions. This easily leads to unstable cleaning effects or excessive stress on the components, thus affecting the reliability and service life of the device. Therefore, it cannot meet the application requirements for stable and reliable cleaning of dust accumulation on the inner walls of channels. Thus, how to achieve efficient and safe cleaning of dust deposits inside pipes without altering the existing dust collection pipe structure, in order to restore the ventilation capacity of the pipe network and improve the overall operational efficiency of the dust collection system, has become an urgent technical problem to be solved.

[0011] In solving the above problems or overcoming the above defects, the present invention encountered the following difficulties and obstacles: In actual production, due to the accumulation of dust in the pipeline, the resistance of the traditional dust removal system increases and the dust removal effect decreases. At the same time, poor ventilation leads to local temperature rise in the pipeline, which eventually causes serious deformation of the pipeline and forces it to be replaced. Summary of the Invention

[0012] The purpose of this invention is to provide: A dust removal device, dust removal system, and dust removal method, and related technologies, are disclosed to solve the technical problem of short service life of the scraper components in existing dust removal devices.

[0013] Terminology Explanation: Unless otherwise defined, all technical terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which the subject matter pertains. Unless otherwise stated, all patents, patent inventions, and publications cited throughout this document are incorporated herein by reference in their entirety. Where multiple definitions exist for terms in this document, the definitions provided in this chapter shall prevail.

[0014] It should be understood that the above brief description and the following detailed description are exemplary and for illustrative purposes only, and do not limit the subject matter of the invention in any way. In this invention, the singular is used in conjunction with the plural unless otherwise specifically stated. It should also be noted that, unless otherwise stated, the use of “or” or “or” means “and / or”. Furthermore, the use of the term “comprising” and other forms such as “including,” “containing,” and “contains” are not limiting.

[0015] Unless otherwise defined, the use of various commercially available products as described herein employs standard techniques. These techniques and methods can generally be implemented according to conventional methods well-known in the art, based on the descriptions in the numerous general and more specific documents cited and discussed in this specification.

[0016] The terms “optional / arbitrary” or “optionally / arbitrarily” mean that the event or situation described below may or may not occur, including both the occurrence and non-occurrence of the event or situation.

[0017] As used in this document, "helical tooth" refers to a tooth-like structure that is inclined relative to the axis of the corresponding component, with its tooth line direction forming a non-zero angle with the axis of the component, used to realize transmission, meshing, or force transmission between components. The helical tooth can be a continuously arranged tooth-shaped structure or a spaced tooth-like protrusion.

[0018] As used in this article, "dust accumulation thickness" refers to the vertical distance from the inner wall surface to the outermost surface of the dust, particles, or impurities deposited on the inner wall of a pipe or channel. This dust accumulation thickness can vary over time and can be used to assess cleaning depth, adjust the working position of cleaning components, or determine the ventilation capacity of a duct.

[0019] In a first aspect, the present invention provides: a dust cleaning device.

[0020] The cleaning device is applied to a pipe with a flow channel. The cleaning device includes a dust accumulation detector, an adjustment component, and a dust removal component disposed in the flow channel. The dust accumulation detector is used to detect the thickness of dust accumulation on the inner wall of the flow channel. The adjustment component includes a telescopic member with a fixed end and a telescopic end, and a movable member connected to the fixed end of the telescopic member. The movable member is used to drive the telescopic member to move axially along the flow channel. The dust removal component includes a scraper connected to the telescopic end of the telescopic member. The telescopic member is used to drive the scraper to move radially along the flow channel. The dust accumulation detector is electrically connected to the telescopic member.

[0021] The structural form of the tube is selected from: circular tube, square tube, and rectangular tube.

[0022] The preferred structural form of the tube is a circular tube.

[0023] The flow channel can be configured in the following ways: uniform distribution, non-uniform distribution, or segmented arrangement.

[0024] The preferred arrangement of the flow channels is uniform distribution.

[0025] The types of dust collectors are selected from: optical detection, ultrasonic detection, capacitance detection, and mechanical contact detection.

[0026] The preferred type of dust collector is optical detection.

[0027] The driving method for the telescopic component can be selected from: motor drive, pneumatic drive, and hydraulic drive.

[0028] The preferred driving method for the telescopic component is motor drive.

[0029] The movement mode of the moving parts is selected from: linear movement, reciprocating movement, rotational movement, and spiral movement.

[0030] The preferred mode of movement for the moving part is linear movement.

[0031] The arrangement of the scraping parts can be selected from: uniform arrangement along the circumference, spiral arrangement, and random interval arrangement.

[0032] The preferred arrangement of the scraping components is: uniformly arranged along the circumference.

[0033] The connection method between the telescopic component and the scraping component is selected from: rigid fixing, elastic support, and adjustable buckle.

[0034] The preferred connection method between the telescopic component and the scraping component is rigid fixing.

[0035] The connection method between the dust accumulation detector and the expansion joint can be selected from: wired electrical connection, wireless connection, mechanical trigger connection, and hybrid connection.

[0036] The preferred connection method between the dust accumulation detector and the expansion joint is a wired electrical connection.

[0037] Based on further solutions to the technical problems of the present invention, or simultaneous solutions to multiple technical problems, the preferred solution in the technical solution provided in the first aspect of the present invention includes: The first preferred solution: The dust-sweeping assembly further includes a positioning element connected to the telescopic end of the telescopic component, and the number of dust-scraping components is multiple, arranged circumferentially on the side wall of the positioning element. This technical solution, while solving the technical problem of "short service life of dust-scraping components in existing dust-cleaning devices," further solves the technical problem of "dust-scraping components being able to uniformly contact the inner wall of the flow channel circumferentially, achieving comprehensive cleaning of accumulated dust."

[0038] The second preferred solution: The positioning component includes a fixed seat disposed on the telescopic end of the telescopic component. Each scraper includes a connecting rod connected to the fixed seat and a sweeping blade connected to the connecting rod. A protrusion is provided at the end of the connecting rod away from the sweeping blade. Multiple grooves adapted to the protrusion are formed on the fixed seat. These grooves are arranged circumferentially along the outer wall of the fixed seat, and the protrusion is inserted into the groove. This technical solution, while solving the technical problem of "short service life of scrapers in existing dust removal devices," further solves the technical problem of "scrapers can be flexibly arranged circumferentially along the fixed seat to achieve uniform cleaning of dust accumulation on the inner wall of the flow channel."

[0039] The third preferred solution is as follows: Multiple first helical teeth are arranged circumferentially on the outer wall of each connecting rod, and the first helical teeth on adjacent connecting rods mesh to adjust the rotation angle of each sweeping blade. This technical solution, while solving the technical problem of "short service life of the scraper components in existing dust removal devices," further solves the technical problem of "synchronous adjustment of the rotation angle of the sweeping blades to achieve efficient cleaning of dust accumulation on the inner wall of the flow channel."

[0040] The fourth preferred solution: The dust-sweeping assembly further includes a housing disposed on the retracted end of the telescopic member. The housing has a receiving cavity and multiple through holes extending from the outer wall of the housing to the receiving cavity. These through holes are arranged circumferentially along the outer wall of the housing. The fixing seat and the connecting rod are disposed within the receiving cavity, and the end of the connecting rod furthest from the fixing seat extends through the through hole and connects to the dust-sweeping blade. This technical solution, while addressing the technical problem of "short service life of the scraper component in existing dust-collecting devices," further solves the technical problem of "safe connection between the dust-sweeping blade and the connecting rod, achieving stable deployment and reducing the risk of pollution during cleaning."

[0041] The fifth preferred option is that the dust-sweeping blade is a straight plate structure; or, the dust-sweeping blade is an arc-shaped plate structure, and the curvature of the dust-sweeping blade gradually increases from the connecting rod towards the direction away from the fixed seat. This technical solution, while addressing the technical problem of "short service life of the scraper components in existing dust-sweeping devices," further solves the technical problem of "efficient scraping of accumulated dust by the dust-sweeping blades, achieving comprehensive cleaning of accumulated dust on the inner wall of the flow channel."

[0042] The sixth preferred solution: The outer shell is further provided with a plurality of second helical teeth, which are arranged on the inner wall of the receiving cavity, and the first helical teeth on the plurality of connecting rods mesh with each other to control the rotation of the connecting rods. This technical solution, in addition to solving the technical problem of "short service life of the scraper in existing dust cleaning devices", further solves the technical problem of "securely locking the connecting rod, dispersing the scraping force, and improving the durability and cleaning uniformity of the dust sweeping blades".

[0043] The seventh preferred solution: A drive gear is also provided on the outer casing. The drive gear is located within the receiving cavity and meshes with the first helical teeth on the connecting rod. The drive gear can drive multiple connecting rods to rotate, thereby adjusting the rotation angle of each of the dust-sweeping blades. This technical solution, while addressing the technical problem of "short service life of the scraper components in existing dust-collecting devices," further solves the technical problem of "the drive gear synchronously adjusting the rotation angle of multiple dust-sweeping blades to achieve precise scraping and uniform cleaning of dust accumulation on the inner wall of the flow channel."

[0044] Secondly, the present invention also provides a dust removal system.

[0045] The dust removal system includes the aforementioned dust removal device, a pipe with a flow channel, a fan for blowing air into the flow channel, and a power supply for supplying power to the dust removal device and the fan. The dust removal device is disposed in the flow channel, and the power supply is electrically connected to the dust detector, the adjustment component, and the fan.

[0046] Among them, the types of fans are selected from: centrifugal fans, axial fans, and mixed-flow fans.

[0047] The preferred type of fan is a centrifugal fan.

[0048] The type of driving power supply can be selected from: DC power supply, AC power supply, and programmable power supply.

[0049] The preferred type of driving power supply is a DC power supply.

[0050] The connection method between the drive power supply and the dust cleaning device can be selected from: wired connection, wireless connection, and hybrid connection.

[0051] The preferred connection method between the drive power supply and the dust cleaning device is a wired electrical connection.

[0052] The connection method between the drive power supply and the fan can be selected from: wired connection, wireless connection, and hybrid connection.

[0053] The preferred connection method between the drive power supply and the fan is a wired electrical connection.

[0054] The location of the dust removal device can be selected from: the inlet of the flow channel, the middle section of the flow channel, the outlet of the flow channel, multiple points along the flow channel, or uniformly arranged along the axial direction inside the flow channel.

[0055] The preferred location for the dust removal device is: uniformly arranged along the axial direction within the flow channel.

[0056] Thirdly, the present invention also provides a dust removal method.

[0057] The dust removal system described above cleans the accumulated dust, and the dust removal method includes the following steps: Step 1: Install the cleaning device in the flow channel and install the fan at the inlet of the flow channel; the drive power supply supplies power to the cleaning device and the fan. Step 2: Use the dust accumulation detector to measure the actual inner diameter of the flow channel and compare the actual inner diameter of the flow channel with the designed inner diameter to determine the thickness of the dust accumulation on the inner wall of the flow channel; Step 3: Based on the ash accumulation thickness, the ash accumulation detector adjusts the extension length of the telescopic end of the telescopic component, so that the ash scraper moves radially along the flow channel to the predetermined ash removal depth; Step four: The moving component drives the telescopic component to move along the axial direction of the flow channel, so that the scraper scrapes the accumulated dust on the inner wall of the flow channel, and the fan blows the scraped dust out of the flow channel; Step 5: According to the preset detection cycle of the dust accumulation detector, repeat steps 2 to 4 until the dust accumulation thickness on the inner wall of the flow channel is less than or equal to the safety threshold, and the cleaning is completed.

[0058] The installation method can be selected from: bolt fixing, slot installation, and welding fixing.

[0059] The preferred installation method is bolt fixing.

[0060] The dust accumulation detection methods are selected from: optical detection, ultrasonic detection, capacitance detection, and mechanical contact detection.

[0061] The preferred method for detecting dust accumulation is optical detection.

[0062] The extension method of the telescopic component can be selected from: automatic extension, manual adjustment, and program control.

[0063] The preferred method for extending the telescopic component is program control.

[0064] The method for setting the dust removal depth is selected from: fixed depth, dynamically adjustable depth, and depth calculated according to working conditions.

[0065] The preferred method for setting the cleaning depth is dynamic adjustment.

[0066] The movement mode of the moving part is selected from: linear movement, reciprocating movement, and spiral movement.

[0067] The preferred mode of movement for the moving component is linear movement.

[0068] The methods for blowing out accumulated dust include: wind blowing, vacuum suction, and combined blowing and suction.

[0069] The preferred method for blowing out accumulated dust is by using airflow.

[0070] The preset detection cycle can be selected from: fixed cycle, dynamic cycle, and working condition trigger cycle.

[0071] The preferred preset detection cycle is a fixed cycle.

[0072] The safety threshold is selected from: standard value, adjustable value, and adaptive value for operating conditions.

[0073] The preferred safety threshold is an adjustable value.

[0074] The present invention has at least the following beneficial effects: This invention constructs a pipe-body dust-collecting structure that combines axial movement along the flow channel with radial cleaning by rationally arranging cooperating dust-sweeping components, adjusting components, and dust accumulation detectors within the flow channel. During the cleaning process, the moving component drives the telescopic component and the dust-scraping component mounted on the telescopic component to reciprocate along the flow channel axis, allowing the dust-scraping component to act on different axial positions of the inner wall of the flow channel. Simultaneously, the dust accumulation detector is used to obtain information on the thickness of the dust accumulation on the inner wall of the flow channel and to control the extension state of the telescopic component, so that the dust-scraping component gradually approaches the inner wall of the flow channel radially. By defining the contact area between the scraper and the inner wall of the flow channel, the contact with the ash layer is gradually deepened in a step-by-step manner. This allows the ash adhering to the inner wall of the flow channel to be removed layer by layer. The scraper does not scrape the inner wall of the flow channel all at once during the cleaning process, avoiding the problem of excessive force or damage to the scraper due to excessive scraping in a single step. This makes the entire cleaning process more stable and controllable, which helps to improve the continuity and reliability of ash cleaning operations. It is suitable for pipeline cleaning scenarios with large differences in ash thickness and has good engineering application value.

[0075] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0076] The accompanying drawings are provided for a better understanding of this solution and do not constitute a limitation of the invention. Wherein: Figure 1 This is a schematic diagram of the structure of the dust cleaning device provided in the embodiment of the present invention; Figure 2 This is a schematic diagram of the connecting rod in the dust cleaning device provided in the embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the dust-sweeping blades in the dust-collecting device provided in the embodiment of the present invention; Figure 4 This is a schematic diagram of the connecting rod and the straight plate structure sweeping blade in the dust removal device provided in the embodiment of the present invention; Figure 5 This is a schematic diagram of the connecting rod and the arc-shaped plate structure sweeping blade in the dust removal device provided in the embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the dust cleaning device provided in the embodiment of the present invention, in which a fixed base is provided on the outer shell; Figure 7 This is a schematic diagram of the structure of the dust cleaning device provided in the embodiment of the present invention, in which a second oblique tooth is provided on the outer shell; Figure 8 This is a schematic diagram of the structure of the dust cleaning device provided in the embodiment of the present invention, in which a drive gear is provided on the outer shell; Figure 9 This is a schematic diagram of the dust removal system provided in an embodiment of the present invention.

[0077] Explanation of reference numerals in the attached figures: In the diagram, 1 is the dust removal system; 10 is the cleaning device; 11 is the dust detector; 12 is the adjusting component; 121 is the telescopic component; 122 is the moving component; 13 is the dust sweeping component; 131 is the dust scraper; 1311 is the connecting rod; 1312 is the dust sweeping blade; 1313 is the protrusion; 1314 is the first helical tooth; 132 is the positioning component; 1321 is the fixed seat; 13211 is the groove; 1322 is the rotating bearing; 133 is the outer shell; 1331 is the receiving cavity; 1332 is the through hole; 1333 is the second helical tooth; 1334 is the drive gear; 1335 is the limiting groove; 134 is the collection hopper; 20 is the pipe body; 21 is the flow channel; 30 is the fan; and 40 is the dust accumulation. Detailed Implementation

[0078] The following non-limiting embodiments are intended to enable those skilled in the art to gain a more comprehensive understanding of the present invention, but do not limit the invention in any way. The following content is merely an exemplary description of the scope of protection claimed by the present invention, and those skilled in the art can make various changes and modifications to the present invention based on the disclosed content, and such changes should also fall within the scope of protection claimed by the present invention.

[0079] The present invention will be further described below by way of specific embodiments. Unless otherwise specified, all instruments, devices, equipment, reagents, products, etc., used in the embodiments of the present invention are obtained through conventional commercial means.

[0080] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0081] In the description of this invention, it should be noted that the directional terms such as “middle”, “top”, “bottom”, “upper”, “lower”, “inner”, and “outer” indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0082] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first," "second," "third," and "fourth" to define a feature may explicitly or implicitly include one or more of that feature, and in the description of this invention, "at least" means one or more, unless otherwise explicitly specified.

[0083] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0084] For ease of explanation later, let me first clarify: The flow channel 21 in the pipe body 20 is used to transport dusty air. The dust particles in the flow channel 21 are usually fine powders, such as ferrosilicon powder or other microparticles. These dust particles easily form an adhesion layer under the influence of air, moisture, or other impurities, exhibiting a partially damp, sticky, or unevenly distributed state. When the scraper 131 scrapes against the inner wall of the flow channel 21, it comes into direct contact with these adhered dust layers. Because the dust may contain hard particles or tiny metal impurities, and the scraper 131 is subjected to radial scraping and axial reciprocating forces during the cleaning process, the stress concentration area at the end of the scraper 131 is prone to micro-cracks or localized wear. If the dust adhesion layer is hard or has particle protrusions, the scraper 131 may even chip, break, or suffer severe surface wear under high-speed or continuous scraping, thereby reducing the service life of the scraper 131. In addition, if the cleaning operation is too deep in one go or the test is too difficult, the scraper 131 may also experience damage. Figure 1 Removing excessively thick dust accumulation 40 at once will subject the scraper 131 to higher cutting resistance and impact force, which may easily lead to instantaneous overload, end damage, or deformation of the scraper 131. This will not only accelerate the wear of the scraper 131, but may also affect the cleaning effect, leaving some dust accumulation 40 behind or causing dust to be rolled back during the cleaning process.

[0085] In a first aspect, the present invention provides a dust removal device. The cleaning device 10 can efficiently and uniformly remove the dust 40 adhering to the flow channel 21, while effectively extending the service life of the scraper 131 by reducing the instantaneous force and wear of the scraper 131, improving the stability and reliability of the overall cleaning operation, and reducing the maintenance frequency caused by damage to the scraper 131.

[0086] Example 1: like Figure 1As shown in the figure, an embodiment of the present invention provides a dust removal device. The cleaning device 10 is applied inside a pipe 20 with a flow channel 21. The cleaning device 10 includes a dust detector 11, an adjustment component 12, and a dust removal component 13 disposed in the flow channel 21. The dust detector 11 is used to detect the thickness of dust accumulation on the inner wall of the flow channel 21. The adjustment component 12 includes a telescopic member 121 with a fixed end and a telescopic end, and a moving member 122 connected to the fixed end of the telescopic member 121. The moving member 122 is used to drive the telescopic member 121 to move axially along the flow channel 21. The dust removal component 13 includes a scraper 131 connected to the telescopic end of the telescopic member 121. The telescopic member 121 is used to drive the scraper 131 to move radially along the flow channel 21. The dust detector 11 is electrically connected to the telescopic member 121.

[0087] This invention, through the rational arrangement of a dust-sweeping component 13, an adjusting component 12, and a dust accumulation detector 11 within the flow channel 21, constructs a dust accumulation 40 cleaning structure within the pipe body 20 that combines axial movement along the flow channel 21 with radial cleaning. During the cleaning process, the moving component 122 drives the telescopic component 121 and the dust scraper 131 mounted on the telescopic component 121 to move axially along the flow channel 21, allowing the dust scraper 131 to act at different axial positions on the inner wall of the flow channel 21. Simultaneously, the dust accumulation detector 11 is used to acquire information about the thickness of the dust accumulation 40 on the inner wall of the flow channel 21 and to control the extension state of the telescopic component 121, so that the dust scraper 131 moves radially along the flow channel 21. The scraper gradually moves closer to the inner wall of the flow channel 21, thereby defining the contact position between the scraper 131 and the inner wall of the flow channel 21. By advancing step by step, the contact with the ash layer 40 is gradually deepened, so that the ash 40 adhering to the inner wall of the flow channel 21 is removed layer by layer. During the cleaning process, the scraper 131 does not scrape the inner wall of the flow channel 21 all at once, avoiding the problem of excessive force or damage to the scraper 131 due to excessive scraping in a single step. This makes the entire cleaning process more stable and controllable, which is conducive to improving the continuity and reliability of the ash 40 cleaning operation. It is suitable for pipeline cleaning scenarios with large differences in ash thickness and has good engineering application value.

[0088] The dust accumulation detector 11 consists of a measurement module, a control module, and a switch module, and is electrically connected to the telescopic component 121 in the adjustment assembly 12. First, the measurement module acquires information about the thickness of the dust accumulation on the inner wall of the flow channel 21, using one or more of the following: an coded rangefinder, an ultrasonic sensor, a laser rangefinder, an infrared rangefinder, or a capacitive thickness sensor. This converts the distance or thickness signal between the inner wall of the flow channel 21 and the 40 layers of dust accumulation into processable data. Second, the control module receives the data collected by the measurement module, processes and calculates it to generate instructions for controlling the dust removal assembly 13. This module uses any of the following: a programmable logic controller (PLC), a microcontroller (MCU), a single-chip microcomputer, or an industrial controller. Finally, the switch module executes the operation instructions sent by the control module, causing the adjustment assembly 12 or the dust removal assembly 13 to operate in a predetermined manner. This typically includes proximity switches, limit switches, relays, solid-state switches, or solenoid valves, triggering the radial or axial movement of the dust removal component 131 via a signal. The selection of measurement modules, control modules, and switch modules, as well as their electrical connection methods and arrangement, can be achieved by those skilled in the art using existing technologies according to actual engineering needs, and will not be elaborated here.

[0089] In this embodiment, the movable component 122 disposed within the flow channel 21 can have various structural forms to achieve reciprocating movement along the axial direction of the flow channel 21. For example, the movable component 122 can be a structure with a fixed guide rail and a slider equipped with balls or rollers, driven by a drive motor to reciprocate along the guide rail; it can also be a linear movement structure with a slider and a slide rod, where the slider moves along the slide rod to achieve axial displacement; it can also be a combination structure of a screw and a slider, where rotating the screw drives the slider to reciprocate along the thread; in addition, the movable component 122 can also be a linear transmission structure such as a rack and pinion, a chain and a slider, etc., where a drive element drives the slider to reciprocate along the axial direction of the flow channel 21. All of the above movable components 122 can cooperate with a drive motor, an electromagnetic actuator, or other existing drive devices to enable the telescopic component 121 and the dust scraper 131 to reciprocate controllably along the axial direction of the flow channel 21 to complete the cleaning action. Those skilled in the art can flexibly select different structures according to the pipe length, the distribution of accumulated dust 40, and the spatial layout, and the implementation details of each structure will not be described here.

[0090] It is worth noting that the moving part 122 in the flow channel 21 can be controlled by the control module of the aforementioned dust accumulation detector 11, so that its movement is linked with the dust accumulation thickness information, or the movement state of the moving part 122 can be controlled independently by a separate control unit to adapt to the requirements of different cleaning strategies or pipeline conditions, thereby providing a flexible operating method for the axial and radial movement of the dust scraper 131.

[0091] Furthermore, in this embodiment, the telescopic member 121, which has a fixed end and a telescopic end, can also adopt various driving forms, such as cylinders, electric push rods, or other existing linear actuators, to achieve radial movement of the telescopic end. Preferably, the telescopic member 121 is driven by a cylinder, and a suitable type of cylinder, such as a single-acting or double-acting cylinder, can be selected according to the pipe size and cleaning requirements. The fixed end of the telescopic member 121 can be fixed to the moving member 122 by welding, bolts, or other reliable methods, so that it can reciprocate axially along the flow channel 21 with the moving member 122. In order to adapt to dust removal conditions and prevent dust, particles, or liquids from damaging the telescopic rod, a corrugated pipe or other protective sleeve can be installed on the telescopic member 121 to protect the telescopic rod, thereby ensuring that the telescopic member 121 works stably and reliably during long-term cleaning. Those skilled in the art can flexibly select the type of telescopic member 121 according to the actual working conditions, which will not be elaborated here.

[0092] The actual working principle of the dust accumulation detector 11 controlling the telescopic end of the telescopic component 121 to move radially along the flow channel 21 is as follows: After the dust accumulation detector 11 obtains the dust accumulation thickness information on the inner wall of the flow channel 21, it generates a control signal through the control module and drives the telescopic component 121 through the switch module, so that its telescopic end gradually approaches the inner wall of the flow channel 21 radially, realizing the layered scraping and cleaning action of the scraper component 131. According to the measured dust accumulation thickness, the extension length of the telescopic component 121 can be adjusted to a predetermined depth, thereby ensuring that each scraping action can remove the dust accumulation 40 without causing excessive force or damage to the scraper component 131.

[0093] It should be noted that the scraper 131 can be a single unit or multiple units arranged radially to adapt to the cleaning needs of different pipe diameters and dust accumulation 40 distributions. The scraper 131 can be made of a high-hardness material to scrape off hardened or thick dust; alternatively, a soft brush can be provided on the surface or end of the scraper 131 to gently clean the inner wall of the pipe, avoiding damage to the pipe surface. Depending on the characteristics of the object being cleaned, the material, hardness, and arrangement of the scraper 131 can be flexibly selected, enabling it to effectively scrape and remove the attached dust accumulation 40 while also protecting the pipe surface when necessary. The configuration and structure of the scraper 131, dust detector 11, telescopic component 121, and moving component 122 described above are merely illustrative examples of embodiments of the present invention, used to explain feasible implementations of the device. Those skilled in the art can make appropriate adjustments or substitutions according to specific working conditions and needs, and therefore should not be considered as limiting the scope of protection of the present invention.

[0094] like Figure 1 As shown, in an optional embodiment of the present invention, the dust removal assembly 13 further includes a positioning member 132 connected to the telescopic end of the telescopic member 121, and the number of dust scraping members 131 is multiple, and the multiple dust scraping members 131 are arranged circumferentially on the side wall of the positioning member 132.

[0095] Specifically, by setting a positioning element 132 at the telescopic end of the telescopic component 121, and arranging and fixing multiple scraping elements 131 circumferentially on the side wall of the positioning element 132, a set of dust-sweeping components 13 structure that can be arranged in a fan shape or other arc shape is constructed. This arrangement provides more placement positions for the scraping elements 131, allowing them to evenly cover different directions of the inner wall of the flow channel 21, thereby achieving comprehensive cleaning of the accumulated dust 40 within the cross-section of the flow channel 21. Through the reasonable design of the positioning element 132, multiple scraping elements 131 can form a fan shape or other arrangement structure adapted to the geometry of the flow channel 21, enabling the scraping elements 131 to radiate and cover the entire cross-section of the flow channel 21 when radially scraping, improving cleaning efficiency. At the same time, it is convenient to flexibly adjust the number and layout of the scraping elements 131 according to the pipe diameter, the distribution of accumulated dust 40, and the working conditions, realizing a customized cleaning solution. This structure not only enhances the uniformity and thoroughness of cleaning, but also provides a stable support foundation for the axial reciprocating motion of the subsequent telescopic component 121 and the moving component 122, thereby ensuring that the dust removal assembly 13 can continuously and efficiently remove the attached dust 40 during long-term operation.

[0096] Due to gravity, dust passing through the flow channel 21 mainly settles on the bottom side of the channel 21. Therefore, multiple dust scrapers 131 arranged in a fan shape along the circumference can effectively cover the dust accumulation area 40, achieving targeted cleaning. This fan-shaped arrangement not only meets cleaning requirements but also significantly reduces manufacturing costs, while reducing the number of dust scrapers 131 without affecting the cleaning effect. Meanwhile, fixed guide rails, slide rods, or other linear guide components used to support the movement of the entire dust-sweeping device are typically arranged on the inner wall of the flow channel 21 near the cleaning area, providing stable motion support for the moving parts 122 and the telescopic parts 121. By rationally arranging the dust scrapers 131, such as appropriately reducing the number of dust scrapers 131 or adopting a fan-shaped arrangement, the load on the guide rails or slide rods due to the overall weight of the device can be reduced, effectively ensuring that the dust-sweeping assembly 13 remains stable during axial reciprocating and radial scraping processes, thereby improving the overall operational reliability of the device and extending the service life of the components. This structural layout not only maintains cleaning efficiency but also takes into account manufacturing costs and ease of maintenance, providing a reliable technical guarantee for the long-term and efficient cleaning of ash 40 accumulated in the flow channel 21.

[0097] like Figure 1-3As shown, in an optional embodiment of the present invention, the positioning member 132 includes a fixed seat 1321 disposed on the telescopic end of the telescopic member 121. Each scraper member 131 includes a connecting rod 1311 connected to the fixed seat 1321 and a sweeping blade 1312 connected to the connecting rod 1311. A protrusion 1313 is provided at one end of the connecting rod 1311 away from the sweeping blade 1312. A plurality of grooves 13211 adapted to the protrusions 1313 are provided on the fixed seat 1321. The plurality of grooves 13211 are arranged circumferentially along the outer wall of the fixed seat 1321, and the protrusions 1313 are inserted into the grooves 13211.

[0098] Specifically, the circumferential position and spacing of the scraper 131 can be easily adjusted by the cooperation of the groove 13211 and the protrusion 1313, so that the scraper 131 can form a fan shape or other arrangement that adapts to the geometry of the cross-section of the flow channel 21, thereby improving the coverage and cleaning uniformity of the ash accumulation 40 in the cross-section of the flow channel 21. At the same time, the engaging structure of the protrusion 1313 and the groove 13211 can ensure that the scraper 131 is stable and reliable during radial scraping and axial reciprocating motion, avoiding loosening or displacement, and improving the operational reliability of the ash sweeping assembly 13. In addition, the structure is simple to design, easy to manufacture and assemble, and allows for flexible arrangement of the number and position of the scraper 131 according to the pipe diameter, the distribution of ash accumulation 40 and the working conditions, thereby balancing cleaning efficiency, structural stability and manufacturing cost.

[0099] The protruding head 1313 is inserted into the groove 13211 and can be fixed with bolts, pins or other connecting parts. It can also be designed to allow the scraper 131 to rotate or adjust its angle within a certain range to meet different cleaning needs. In order to accommodate the arrangement of multiple scrapers 131 in a fan shape or other configurations that are compatible with the cross-sectional geometry of the flow channel 21, the fixing base 1321 is preferably set as a semi-circular structure. This can cover the main dust accumulation area 40 at the bottom of the flow channel 21 or in a specific area, avoiding the ineffective operation of some scrapers 131 due to the unilateral drive of the telescopic member 121 in a full-circular structure. When cleaning only the ash 40 at the bottom of the flow channel 21, it is preferable to use a semi-circular fixed seat 1321 with a coverage angle of 180°, and arrange multiple ash scrapers 131 in a fan shape along the semi-circular fixed seat 1321 to effectively cover the main deposition area at the bottom of the flow channel 21, and avoid some ash scrapers 131 from not being able to effectively participate in cleaning due to the unidirectional drive of the telescopic member 121 in the full-circular arrangement structure, thereby reducing structural redundancy.

[0100] Of course, when it is necessary to clean the inner wall of the flow channel 21 in a full circumferential manner, the multiple scraper components 131 can also be arranged in a ring structure. In this case, the telescopic component 121 can be equipped with bidirectional driving capability, or at least two telescopic components 121 can be set up, and each can drive the corresponding semi-annular fixed seat 1321 to move the scraper component 131 from different directions, so that the scraper component 131 as a whole forms a ring cleaning arrangement, thereby achieving full cross-section cleaning coverage of the flow channel 21. Since dust is mainly deposited in the bottom area of ​​the flow channel 21 under most working conditions, the use of a semi-annular fixed seat 1321 with a coverage angle of 180° and the arrangement of multiple scraper components 131 in a fan shape along the semi-annular fixed seat 1321 can meet the actual cleaning requirements. While ensuring the cleaning coverage effect, it is beneficial to simplify the structural design, reduce manufacturing costs and improve the reliability of system operation. The above-described structural form and the arrangement of the scraper components 131 are only preferred embodiments of the present invention and do not constitute a limitation on the scope of protection of the present invention. Without departing from the technical concept of this invention, those skilled in the art may make corresponding adjustments or equivalent replacements to the shape, coverage angle, quantity and arrangement of the scraping parts 131 of the fixed seat 1321 according to different flow channel 21 structures, ash accumulation 40 distribution characteristics and cleaning conditions, and all such adjustments or replacements shall fall within the protection scope of this invention.

[0101] It should be noted that the material and thickness of the scraper blades 131 can be selected based on the characteristics of the dust in the flow channel 21 and the cleaning resistance, to ensure that they can effectively scrape and remove the accumulated dust 40 without causing damage or reducing service life due to excessively thin or hard blades. Taking this embodiment of the invention as an example, for the application scenario of dust removal in ferrosilicon electric furnaces, the accumulated dust 40 in the flow channel 21 is mainly "microsilica powder". This type of dust particles are small, have a low specific gravity, and relatively low adhesion. Therefore, in this embodiment, the scraper blades 131 are preferably made of ordinary carbon steel with a thickness of 3mm, which can effectively scrape off the attached microsilica powder and has sufficient rigidity and durability. Through the above exemplary material selection, those skilled in the art can flexibly design adaptive scraper blades according to different working conditions, and the specific material or thickness of the scraper blades will not be further limited here.

[0102] like Figure 1 and Figure 2 As shown, in an optional embodiment of the present invention, a plurality of first helical teeth 1314 are arranged circumferentially on the outer wall of each connecting rod 1311, and the first helical teeth 1314 on adjacent connecting rods 1311 mesh with each other to adjust the rotation angle of each dust sweeping blade 1312.

[0103] Specifically, multiple first helical teeth 1314 are arranged circumferentially on the outer wall of each connecting rod 1311. The first helical teeth 1314 on adjacent connecting rods 1311 mesh with each other, so that each dust-sweeping blade 1312 can be firmly fixed by the meshing of the first helical teeth 1314, preventing loosening due to vibration during the scraping of accumulated dust 40. At the same time, the mating structure of the protrusion 1313 and the groove 13211 forms a locking effect, further ensuring the stability of the dust-sweeping component 131. On this basis, the meshing of the first helical teeth 1314 can also realize the angle adjustment linkage, that is, by adjusting the rotation angle of one connecting rod 1311, the other connecting rods 1311 meshed with it can be driven to rotate synchronously, thereby adjusting the rotation angle of multiple dust-sweeping blades 1312 at one time. This structure not only ensures the stability of the dust-sweeping assembly 13 during the cleaning process, but also facilitates the quick adjustment of the angle of the dust-sweeping blades 1312 according to the cross-sectional shape of the flow channel 21 or the cleaning requirements, improving the convenience of assembly and maintenance.

[0104] The reason for setting the first helical tooth 1314 is that the dust-sweeping blades 1312 are arranged in a fan shape, and the multiple dust-scraping parts 131 need to maintain a stable spacing and relative position within a certain angle range. The first helical tooth 1314, by meshing with the helical teeth on the adjacent connecting rod 1311, can achieve good linkage and angle fixation between the dust-sweeping blades, thereby adapting to the characteristics of the annular or fan-shaped arrangement of the dust-sweeping assembly 13, and ensuring that the dust-scraping parts 131 remain stable during radial scraping or axial reciprocating motion. The first helical tooth 1314 can be directly formed on the outer wall of the connecting rod 1311 by milling, cutting, stamping, or die forming, or it can be fixed on the outer wall of the connecting rod 1311 by using helical gears, key connections, or other existing connection methods to achieve meshing linkage with the adjacent connecting rod 1311. Preferably, the first helical tooth 1314 is directly machined on the outer wall of the connecting rod 1311, so that the sweeping blade 1312 can achieve angle adjustment linkage while ensuring stability. This makes it easy to quickly adjust the angle of the sweeping blade 1312 according to the cross-sectional shape of the flow channel 21 or the cleaning requirements, thereby improving the convenience of assembly, adjustment and maintenance.

[0105] It should be noted that adjusting the rotation angle of each sweeping blade 1312 directly affects the cleaning coverage and efficiency when each blade 1312 moves radially or reciprocates along the axial direction of the flow channel 21. By adjusting the rotation angle of the sweeping blades 1312, the contact position between each blade 1312 and the inner wall of the flow channel 21 can be ensured to be reasonable and the spacing uniform, thereby optimizing the cleaning coverage. At the same time, it can avoid interference or overlap when multiple sweeping blades 1312 are arranged too densely, improving the cleaning effect and the stability of the device operation.

[0106] like Figure 1-7As shown, in an optional embodiment of the present invention, the dust sweeping assembly 13 further includes a housing 133 disposed on the retracted end of the telescopic member 121. The housing 133 has a receiving cavity 1331 and a plurality of through holes 1332 penetrating the outer wall of the housing 133 to the receiving cavity 1331. The plurality of through holes 1332 are arranged circumferentially along the outer wall of the housing 133. The fixing seat 1321 and the connecting rod 1311 are disposed in the receiving cavity 1331, and the end of the connecting rod 1311 away from the fixing seat 1321 passes through the through hole 1332 and is connected to the dust sweeping blade 1312.

[0107] Specifically, a housing 133 with a receiving cavity 1331 is further provided on the telescopic end of the telescopic member 121 for placing the fixed seat 1321 and the connecting rod 1311. This provides protection for the connection between the protrusion 1313 and the groove 13211 in a dusty working environment, as well as the meshing of the first helical teeth 1314 on each connecting rod 1311. This not only effectively prevents dust from entering the groove 13211 of the fixed seat 1321 and avoids dust accumulation affecting the insertion function of the protrusion 1313 and the groove 13211, but also prevents dust from adhering to the first helical teeth 1314 and affecting its rotation adjustment and linkage function. This further ensures the stability and adjustment accuracy of the dust sweeping blade 1312, thereby ensuring flexible and reliable operation during the next angle adjustment or maintenance. Secondly, by setting multiple through holes 1332 and fixed supports inside the receiving cavity 1331, the extended portion of the connecting rod 1311 obtains more points of support before penetrating the outer shell 133, reducing vibration and swaying caused by radial scraping of the sweeping blades 1312 or axial reciprocating motion along the flow channel 21, thus improving the stability and cleaning accuracy of the sweeping assembly 13. Through this cooperative design, the sweeping assembly 13 ensures the flexibility of angle adjustment linkage while protecting key transmission components, and effectively improves the reliability and service life of the overall device in dusty environments.

[0108] To facilitate design and manufacturing, as well as the assembly of the fixing base 1321 and the connecting rod 1311, the outer shell 133 is preferably designed as a separable structure. For example, the outer shell 133 includes two connected half-shells, and openings can be made on the side walls of either or both half-shells to allow for precise alignment and the formation of a robust receiving cavity 1331 during assembly. The mating connection of the two half-shells can be achieved using bolts, clips, pins, or other existing fasteners, ensuring structural stability while facilitating disassembly and maintenance. This separable design makes the installation, adjustment, and maintenance of the fixing base 1321 and the connecting rod 1311 more convenient. Furthermore, it effectively reduces assembly difficulty and improves design and construction flexibility when installing the dust removal component 13 inside the flow channel 21.

[0109] Preferably, to accommodate the cross-section of the flow channel 21 and the layout requirements of the dust-sweeping assembly 13, the outer shell 133 is also designed in a semi-circular shape, similar to the semi-circular design principle of the fixed base 1321. The semi-circular outer shell 133 can adapt to the structural shape of the flow channel 21, providing stable support for the fixed base 1321 and the connecting rod 1311, and facilitating the arrangement of multiple dust-sweeping blades 1312 to effectively clean the dust accumulation 40 at the bottom or in specific areas of the flow channel 21. At the same time, the matching structure between the semi-circular outer shell 133 and the fixed base 1321 ensures that the components inside the receiving cavity 1331 remain stable during radial scraping and axial reciprocating motion, avoiding vibration and displacement, thereby improving the overall stability, cleaning accuracy, and service life of the dust-sweeping assembly 13.

[0110] like Figure 3-5 As shown, in an optional embodiment of the present invention, the dust sweeping blade 1312 is a straight plate structure; or, the dust sweeping blade 1312 is an arc plate structure, and the curvature of the dust sweeping blade 1312 gradually increases from the connecting rod 1311 toward the direction away from the fixed seat 1321.

[0111] Specifically, the sweeping blades 1312 can be straight plate structures. Straight plate structures offer the advantage of simple manufacturing and facilitate control over the gaps between the individual sweeping blades 1312, ensuring a uniform distribution of the sweeping blades 1312 along the outer periphery of the mounting base 1321, thereby guaranteeing controllability of the cleaning coverage and scraping effect. When the straight plate contacts the accumulated dust 40, the larger initial contact area allows for a uniform force applied to the dust 40, making it suitable for cleaning scenarios with lighter dust or thinner deposits. To further reduce the initial contact area between the sweeping blades 1312 and the accumulated dust 40 and decrease scraping resistance, the straight plate blades can also be angled, creating a smaller contact area when the sweeping blades contact the accumulated dust 40, thus facilitating the scraping of the dust 40 and reducing the force on the scraper 131.

[0112] Of course, the sweeping blade 1312 can also be an arc-shaped plate structure, and the curvature of the sweeping blade 1312 gradually increases from the connecting rod 1311 away from the fixed seat 1321. Compared with the straight plate structure, the arc-shaped plate structure is relatively more difficult to manufacture, and the control of the gap between the blades is also more complex. The arc-shaped structure allows the free end of the sweeping blade 1312 to form an active welcoming shape similar to a shovel or plowshare. During the scraping process, the contact area with the accumulated dust 40 can be gradually increased. Unlike the straight plate structure, there is no need to deliberately adjust the blade tilt angle or use higher strength materials, so it can more effectively remove the dust attached to the inner wall of the pipe. Since the contact point of the arc-shaped blade is smaller when it initially contacts the accumulated dust 40, the resistance is relatively lower. Therefore, when dealing with thicker or harder dust deposits, the arc-shaped blade can complete the cleaning action more smoothly and efficiently.

[0113] To ensure that the sweeping blade 1312 can smoothly cut into the accumulated ash 40 during the scraping process without increasing the stress or affecting the cleaning effect due to excessive tilting or curvature, the offset angle θ between the free end of the sweeping blade 1312 and the diameter direction of the flow channel 21 should be controlled between approximately 10° and 45°, preferably approximately 20°. Specifically, for the sweeping blade 1312 with a straight plate structure, the offset angle θ refers to the angle between the extension line of the sweeping blade 1312 along its length direction (the straight line from the fixed end to the free end) and the diameter direction of the flow channel 21; while for the sweeping blade 1312 with an arc plate structure, the angle is also defined as the angle between the straight line extension direction from the fixed end to the free end and the diameter direction of the flow channel 21, rather than the curvature of the blade itself. Through this design, regardless of whether the sweeping blade 1312 has a straight or curved plate structure, the initial contact angle of its scraping against the accumulated dust 40 can be effectively controlled. This ensures scraping efficiency while reducing the risk of stress and preventing blade warping, uneven stress, or localized damage to the inner wall of the flow channel 21. Especially when the sweeping blade 1312 has a curved plate structure, the extension direction of its free end should at most remain parallel to the axial direction of the flow channel 21, and should not warp. This prevents increased scraping resistance or uneven stress on the scraping component 131, which could lead to vibration of the sweeping blade 1312 and even breakage. Reasonably controlling the offset angle of the sweeping blade 1312 not only improves the smoothness and reliability of the cleaning action but also allows for flexible adjustment of the scraping depth and cleaning efficiency according to different flow channel 21 diameters and dust accumulation thicknesses.

[0114] It should be noted that, in order to better control the spacing between the sweeping blades 1312 and to accommodate the arrangement of multiple sweeping blades 1312 in a ring, semi-ring, or other arc shape in the flow channel 21, the sweeping blades 1312 are preferably designed as integral fan-shaped plates. This allows multiple sweeping blades 1312 to form a nearly continuous cleaning surface when spliced ​​together along the circumference of the outer shell 133, thereby effectively covering the cross-section of the flow channel 21 and avoiding interference between blades. Simultaneously, the connection between the sweeping blades 1312 and the connecting rod 1311 is typically secured using bolts, nuts, locating pins, or other existing fasteners, achieving a robust and reliable connection. This structure ensures the stability of each sweeping blade 1312 during radial scraping or axial reciprocating motion, and facilitates disassembly and adjustment of the blades during assembly or maintenance, enabling flexible control of spacing and angle.

[0115] like Figure 6 and Figure 7 As shown, in an optional embodiment of the present invention, the outer shell 133 is further provided with a plurality of second helical teeth 1333, the plurality of second helical teeth 1333 are arranged on the inner wall of the receiving cavity 1331, and the first helical teeth 1314 on the plurality of connecting rods 1311 mesh with each other to control the rotation of the connecting rods 1311.

[0116] Specifically, considering that in some application scenarios the dust sweeping assembly 13 only needs to operate with a fixed angle of the dust sweeping blade 1312 without frequent adjustment of the blade angle, this embodiment of the invention achieves the locking of the angle of the dust sweeping blade 1312 through the engagement of the second helical tooth 1333 with the first helical tooth 1314. Specifically, the outer shell 133 is provided with a plurality of second helical teeth 1333 on the inner wall of the receiving cavity 1331. The plurality of second helical teeth 1333 are arranged in a ring or semi-ring and engage with the first helical teeth 1314 on the plurality of connecting rods 1311. After the angle of the dust sweeping blade 1312 is adjusted, a locked state is formed to control the rotation of the connecting rod 1311, so that the connecting rod 1311 and the dust sweeping blade 1312 connected thereto maintain a fixed angle, thereby effectively ensuring the stability of the blade during radial scraping or axial reciprocating motion along the flow channel 21. This locking structure not only disperses the impact and vibration generated when the sweeping blades 1312 come into contact with the accumulated dust 40, reducing the risk of concentrated stress and uneven load on the blades, but also prevents the blades from loosening, deflecting, or deviating at an angle during the cleaning process, thereby improving the overall cleaning accuracy of the sweeping assembly 13. Through this design, the sweeping blades 1312 can operate stably in complex dust environments, while extending the service life of key transmission components and the overall device, thus improving the reliability and long-term operating efficiency of the sweeping device.

[0117] The second helical tooth 1333 provided in the outer shell 133 can be directly formed on the inner wall of the receiving cavity 1331 by milling, cutting, stamping, die forming, etc., or it can be achieved by installing a separately provided tooth plate on the inner wall of the outer shell 133. The specific arrangement of the second helical tooth 1333 can be flexibly selected according to the actual structural design, processing technology and assembly requirements. This embodiment does not limit its formation method or material, and all of them are feasible solutions that can be implemented by those skilled in the art with existing technology.

[0118] It should be noted that when the angle of the dust sweeping blade 1312 needs to be adjusted, the locking action of the second helical tooth 1333 can be released, allowing the connecting rod 1311 and the first helical tooth 1314 to rotate freely. Specific operation methods include: disassembling or loosening the fasteners (such as bolts, clips, or pins) on the housing 133, or temporarily disengaging the first helical tooth 1314 from the second helical tooth 1333 via a movable tooth plate, thereby allowing the connecting rod 1311 to rotate within the receiving cavity 1331. Subsequently, the rotation angle of the connecting rod 1311 can be adjusted manually or via a drive device (such as a motor, cylinder, or rotating tool) to drive the other connecting rods 1311 meshing with it to rotate synchronously, achieving overall adjustment of the angle of the dust sweeping blade 1312. After the adjustment is completed, the second helical tooth 1333 is re-engaged with the first helical tooth 1314, so that the connecting rod 1311 and the dust sweeping blade 1312 are re-locked in a new angular position, ensuring that the dust sweeping assembly 13 remains stable during subsequent scraping and axial reciprocating motion.

[0119] Example 2 like Figure 6 and Figure 8 As shown, the difference between Embodiment 2 and Embodiment 1 lies in the method by which the angle of the sweeping blade 1312 is adjusted during the sweeping process. In Embodiment 1, the connecting rod 1311 is locked by the engagement of the first helical tooth 1314 and the second helical tooth 1333, thereby keeping the angle of the sweeping blade 1312 fixed. In Embodiment 2, the connecting rod 1311 and the sweeping blade 1312 it drives can achieve adjustable rotation angle during the sweeping process. Apart from the above differences, the structure of the remaining components and their mutual cooperation relationships in Embodiment 2 are the same as in Embodiment 1, and will not be described again here.

[0120] Compared with Embodiment 1, Embodiment 2 provides a dust cleaning device, in which a drive gear 1334 is also provided on the outer shell 133 of the dust sweeping component 13. The drive gear 1334 is disposed in the receiving cavity 1331, and the drive gear 1334 meshes with the first helical tooth 1314 on the connecting rod 1311. The drive gear 1334 can drive multiple connecting rods 1311 to rotate, which is used to adjust the rotation angle of each dust sweeping blade 1312.

[0121] Specifically, by setting a drive gear 1334 inside the outer casing 133, the drive gear 1334 meshes with the first helical tooth 1314 on the connecting rod 1311. During the axial movement and cleaning process of the dust sweeping assembly 13 along the flow channel 21, it can simultaneously drive multiple connecting rods 1311 and dust sweeping blades 1312 to rotate, thereby causing the dust sweeping blades 1312 to undergo circumferential angle changes while moving axially. This structure makes the effect of the dust sweeping blades 1312 on the accumulated dust 40 no longer limited to scraping in a single direction, but rather forming a combined effect of plowing and stirring on the accumulated dust 40 during the movement, so that the originally compacted or hardened accumulated dust 40 is continuously turned over, broken and loosened.

[0122] Based on this, the rotating dust-sweeping blades 1312 can continuously change their contact posture with the accumulated dust 40, avoiding repeated scraping along a fixed trajectory that leads to cleaning dead zones or dust accumulation, thus improving the adaptability to dust accumulation 40 of different thicknesses and distribution states. Simultaneously, after being loosened, the dust 40 is more easily detached from the inner wall of the flow channel 21 and carried away by subsequent airflow or collection devices, which helps improve overall cleaning efficiency. Through the setting of this transmission adjustment structure, without significantly increasing structural complexity, the dust-sweeping action is transformed from simple scraping to a combination of turning, breaking, and scraping, effectively enhancing the thoroughness and stability of dust accumulation cleaning. The rotation control of the drive component driving the transmission rod gear can also be achieved through the control module of the aforementioned dust accumulation detector 11, linking the rotation of the dust-sweeping blades 1312 with dust accumulation thickness information. Alternatively, the movement state of the moving component 122 can be controlled independently by a separate control unit to adapt to different cleaning strategies or pipeline conditions.

[0123] The driving method of the drive gear 1334 can be flexibly set. On the one hand, the drive gear 1334 can be driven independently by a separate driver, so that the rotational motion of the dust sweeping blade 1312 and the axial movement of the dust sweeping assembly 13 along the flow channel 21 are independent of each other, thereby facilitating the implementation of differentiated cleaning strategies for different dust accumulation thicknesses or distribution states; on the other hand, the drive gear 1334 can also share the same driver with the moving part 122 of the dust sweeping assembly 13, and achieve synchronous driving through mechanical transmission or electronic control, so that the rotational motion of the dust sweeping blade 1312 and the axial movement of the assembly maintain a fixed coordinated relationship, simplifying the drive structure and reducing energy consumption and control complexity.

[0124] It should be further noted that the type and specifications of the drive unit can be selected according to actual working conditions and control requirements. It can be driven by a motor, pneumatic, or hydraulic system, or by stepper or servo control to meet the needs of different cleaning strategies. Similarly, the material, tooth profile, and size of the drive gear 1334 can be optimized based on the number of sweeping blades 1312, torque requirements, and transmission efficiency, thus balancing reliability, wear resistance, and transmission accuracy. Through these flexible settings, the optimal drive mode can be selected according to actual working conditions, achieving efficient, stable, and controllable sweeping action.

[0125] like Figure 6 and 8 As shown, in an optional embodiment of the present invention, the positioning member 132 further includes a plurality of rotating bearings 1322 corresponding to the connecting rod 1311, and a plurality of limiting grooves 1335 corresponding to the rotating bearings 1322 are provided on the inner wall of the receiving cavity 1331. The rotating bearings 1322 are disposed in the limiting grooves 1335 and are disposed on the connecting rod 1311.

[0126] Specifically, by providing a limiting groove 1335 corresponding to the rotating bearing 1322 on the inner wall of the receiving cavity 1331, and installing the rotating bearing 1322 within the limiting groove 1335, the rotating bearing 1322 is effectively limited and supported in both the axial and radial directions. This ensures the stable rotation of the connecting rod 1311 around its own axis during the operation of the dust removal assembly 13, preventing the connecting rod 1311 from shaking, swaying, or jamming during rotation. Simultaneously, the mating structure between the rotating bearing 1322 and the limiting groove 1335 allows the connecting rod 1311 to rotate relative to the inner wall of the receiving cavity 1331, replacing sliding contact with rolling contact. This effectively reduces rotational resistance and frictional loss, minimizing energy loss and heat accumulation in the dust removal assembly 13 during continuous rotation.

[0127] Furthermore, multiple rotating bearings 1322 are axially distributed along the connecting rod 1311, providing multi-point rotational support for the connecting rod 1311. This disperses the radial load and rotational impact force borne by the dust-sweeping assembly 13 during cleaning, reducing localized stress concentration and thus lowering the wear risk of the connecting rod 1311 and its related components, extending the overall service life of the dust-sweeping assembly 13. Through the synergistic effect of these structures, the stability and reliability of the dust-sweeping assembly 13 during rotation are improved, which is beneficial for enhancing the cleaning effect of the accumulated dust 40 and reducing the decrease in cleaning efficiency caused by unstable rotation or component wear.

[0128] To facilitate the timely removal of the scraped dust 40, the dust-sweeping assembly 13 also includes a collection hopper 134. The collection hopper 134 is typically located at the bottom of the pipe body 20 and is used to collect the dust 40 that falls off during the cleaning process. By guiding the dust 40 to the bottom of the pipe body 20 and into the collection hopper 134, the dust 40 is prevented from accumulating scattered inside the pipe body 20 or being re-entrained by the dust-sweeping assembly 13, thus reducing secondary pollution and the need for repeated cleaning. Simultaneously, the collection hopper 134 facilitates the subsequent unified discharge or cleaning of the dust 40 without requiring complete disassembly or manual cleaning of the inside of the pipe body 20. This improves the convenience of dust 40 discharge and maintenance efficiency, helps maintain the unobstructed flow inside the pipe body 20, and further enhances the overall cleaning effect and operational stability of the dust-sweeping device 10.

[0129] Secondly, such as Figure 9 As shown, this embodiment of the invention also provides a dust removal system. The dust removal system 1 includes the cleaning device 10 in the aforementioned embodiment 1 or embodiment 2, a pipe with a flow channel 21, a fan 30 for blowing air into the flow channel 21, and a drive power supply for supplying power to the cleaning device 10 and the fan 30. The dust cleaning device 10 is disposed in the flow channel 21, and the drive power supply is electrically connected to the dust detector 11, the adjustment component 12 and the fan 30 respectively.

[0130] Specifically, the dust removal system 1 is configured inside a pipe with a flow channel 21. This system uses a fan 30 in conjunction with a cleaning device 10. While the scraper 131 scrapes, turns, and loosens the dust 40 accumulated on the inner wall of the flow channel 21, the fan 30 continuously or intermittently blows air into the flow channel 21. This ensures that the scraped dust is promptly blown away from the cleaning area and discharged along the flow channel 21. This structure avoids the problem of scraped dust being partially retained in the flow channel 21 or repeatedly carried by the scraper 131, thus preventing dust from re-adhering to the inner wall of the flow channel 21 or accumulating around the scraper 131 during the cleaning process, which would affect the subsequent cleaning effect.

[0131] Compared to relying solely on the scraper assembly to mechanically clean the accumulated dust 40 and then waiting for the dust to settle naturally or slowly move with the airflow, this invention actively delivers air through the fan 30, simultaneously transporting and removing dust during the cleaning process. This significantly shortens dust retention time and improves overall cleaning efficiency. Simultaneously, the introduction of airflow also creates auxiliary disturbance to the agitated and loosened accumulated dust 40, making it easier for the dust to detach from the inner wall of the flow channel 21, thus maximizing the cleaning effect of the scraper assembly 13 through scraping and stirring. Through the coordinated operation of the dust cleaning device 10 and the fan 30, mechanical cleaning and airflow are combined, avoiding the problem of cleaning efficiency being limited by dust recirculation or secondary accumulation, effectively improving the speed, thoroughness, and overall operational efficiency of cleaning the accumulated dust 40 in the flow channel 21.

[0132] Thirdly, embodiments of the present invention also provide a dust removal method, wherein the aforementioned dust removal system 1 cleans the accumulated dust 40 in the flow channel 21, and the dust removal method includes the following steps: Step 1: Install the cleaning device 10 inside the flow channel 21, and install the blower 30 at the inlet of the flow channel 21. Power supply to the cleaning device 10 and the blower 30. By installing the cleaning device 10 inside the flow channel 21 and placing the blower 30 at the inlet of the flow channel 21, and simultaneously providing unified power to both the cleaning device 10 and the blower 30 via a drive power supply, the cleaning system can achieve a coordinated working mode of mechanical cleaning and airflow conveying upon startup. On one hand, the cleaning device 10 moves axially inside the flow channel 21 and actively scrapes the accumulated dust 40 on the inner wall, avoiding the problem of incomplete cleaning caused by relying solely on airflow scouring. On the other hand, the blower 30 forms a directional airflow at the inlet, which can simultaneously transport the scraped-off dust 40 to the outside of the flow channel 21 during the cleaning process, preventing the dust 40 from stagnating, falling back, or being re-entrained inside the flow channel 21, thereby improving the continuity and efficiency of dust 40 cleaning as a whole.

[0133] The cleaning device 10 is detachably installed inside the flow channel 21. During the daily operation of the dust removal system 1, the flow channel 21 between the fan 30 and the pipe 20 can transport and discharge dusty air. The cleaning device 10 is only activated for mechanical scraping cleaning when the dust accumulation in the flow channel 21 reaches a certain level, thus eliminating the need for the cleaning device 10 to operate constantly. This design ensures that the accumulated dust 40 is treated as needed without affecting the system's daily transport function, while avoiding unnecessary accumulation of dust 40 on the cleaning device 10, thus balancing the cleaning effect with the continuity and reliability of system operation.

[0134] Step 2: Use the dust accumulation detector 11 to measure the actual inner diameter of the flow channel 21, and compare the actual inner diameter of the flow channel 21 with the designed inner diameter to determine the thickness of the dust accumulation on the inner wall of the flow channel 21. By measuring the actual inner diameter of the flow channel 21 using the dust accumulation detector 11 and comparing it with the designed inner diameter of the flow channel 21, the thickness of the dust accumulation on the inner wall of the flow channel 21 can be quantitatively calculated, rather than relying on experience or manual estimation. In this embodiment, the dust accumulation detector 11 is located at the top of the cavity of the flow channel 21. Its installation position has been pre-deducted for its own installation height and structural offset during parameter setting, so that the output value of the detector can directly reflect the effective diameter size of the inner wall of the flow channel 21 in the top direction. Based on the above premise, when the designed inner diameter of the flow channel 21 is D0 and the actual inner diameter detected by the detection module of the dust accumulation detector 11 is D1, the dust accumulation thickness H at the bottom of the flow channel 21 can be calculated according to the following formula: H=D0-D1; where D0 represents the inner diameter of the flow channel 21 under the factory design or theoretical manufacturing size, that is, the standard diameter of the flow channel 21 when it is not affected by ash accumulation 40 or other deposits. This design inner diameter is usually determined by the structural drawings or design parameters of the flow channel 21 and is the reference value for calculating the ash accumulation thickness and determining the cleaning depth.

[0135] Step 3: Based on the ash accumulation thickness, the ash detector 11 adjusts the extension length of the telescopic end of the telescopic component 121 so that the scraper 131 moves radially along the flow channel 21 to the predetermined ash removal depth. Based on the calculated dust accumulation thickness, the dust accumulation detector 11 is set to a predetermined dust removal thickness value. The dust accumulation detector 11 controls the extension length of the telescopic end of the telescopic component 121, allowing the scraper component 131 to move precisely radially along the flow channel 21 to the predetermined dust removal depth, thus achieving a cleaning method that allows for on-demand contact. This method ensures that the scraper component 131 only makes effective contact with the dust accumulation layer 40, without directly or excessively acting on the inner wall of the flow channel 21, which helps to reduce the risk of mechanical wear on the inner wall of the flow channel 21 while ensuring the cleaning effect. In addition, through a closed-loop control logic of detection, calculation, and adjustment, the cleaning device 10 can automatically adapt to the dust accumulation thickness formed in different positions and under different working conditions, improving the system's intelligence level and operational stability.

[0136] The dust removal thickness value refers to the radial movement depth of the scraper 131 determined by the dust accumulation detector 11 based on the dust accumulation 40 on the inner wall of the pipe or flow channel 21. It is used to control the degree to which the scraper 131 contacts the dust accumulation layer 40. This dust removal thickness value can be kept fixed during each cleaning process, or it can be dynamically adjusted according to the dust accumulation thickness at different locations or under different working conditions, so as to achieve the control effect of cleaning on demand and automatically adapting to different dust accumulation states 40.

[0137] Step 4: The moving part 122 drives the telescopic part 121 to move along the axial direction of the flow channel 21 so that the scraper 131 scrapes the dust 40 on the inner wall of the flow channel 21, and the fan 30 blows the scraped dust 40 out of the flow channel 21. As the moving component 122 drives the telescopic component 121 to move axially along the flow channel 21, the scraper component 131 continuously scrapes the accumulated dust 40 on the inner wall of the flow channel 21, causing the dust 40 to fall off the inner wall. Simultaneously, the fan 30 continuously blows airflow into the flow channel 21, which, as the scraper component 131 completes its scraping action, quickly carries the fallen dust 40 away from the cleaning area and discharges it from the flow channel 21. Compared to methods relying solely on mechanical cleaning or solely on airflow blowing, this step, by combining axial movement cleaning with directional airflow conveying, effectively avoids the problem of the dust 40 being repeatedly rolled up and accumulated during the cleaning process, significantly improving the cleaning efficiency per unit time.

[0138] Step 5: According to the preset detection cycle of the dust accumulation detector 11, repeat steps 2 to 4 until the dust accumulation thickness on the inner wall of the flow channel 21 is less than or equal to the safety threshold, and the cleaning is completed.

[0139] According to the preset detection cycle of the dust accumulation detector 11, during continuous cleaning, the dust accumulation detector 11 performs detection, adjustment, and cleaning steps in a cyclical manner, forming a dynamic feedback mechanism for the entire cleaning process. After each round of cleaning, the system remeasures the actual inner diameter of the inner wall of the flow channel 21 and updates the dust accumulation thickness data accordingly, thereby accurately calculating the required scraping depth and abrasion parameters. The cleaning process automatically ends when the detection result shows that the dust accumulation thickness is less than or equal to the preset threshold. This method can avoid wear or energy waste on the inner wall of the flow channel 21 that may be caused by excessive cleaning at one time, while ensuring uniform and reliable cleaning results. By preset detection cycle, threshold, and cleaning depth parameters, the system can automatically adjust the cleaning action according to the dust accumulation 40 distribution and dust characteristics of the flow channel 21, achieving efficient, continuous, and energy-saving cleaning operations, and effectively extending the service life of the dust removal device and related transmission components.

[0140] The so-called safety threshold refers to the minimum allowable dust accumulation thickness during the dust accumulation 40 cleaning process, designed to prevent the dust scraping blades 1312 of the scraper 131 from directly contacting the inner wall of the flow channel 21, which could cause wear, scratches, or structural damage. When the actual dust accumulation thickness detected on the inner wall of the flow channel 21 is lower than or equal to this safety threshold, the cleaning action automatically stops, ensuring that the scraping blades 1312 do not directly contact the metal wall of the flow channel 21. The safety threshold is typically designed based on factors such as the material, thickness, and tilt angle of the scraping blades 1312, as well as the material and allowable wear of the flow channel 21, to ensure that the scraper 131 maintains a safe distance from the flow channel 21 wall when scraping the dust accumulation 40. By setting a safety threshold, cleaning efficiency can be maintained while reducing the risk of damage to the inner wall of the flow channel 21, extending the service life of the scraping blades 1312 and the flow channel 21, and ensuring long-term operational reliability and safety.

[0141] It is important to emphasize that, regardless of whether it is the cleaning device 10 in Embodiment 1 or Embodiment 2, in order to avoid cleaning dead corners between the sweeping blades 1312 during the cleaning process, the spacing between each sweeping blade 1312 should be as small as possible. This ensures that the annular or semi-annular arrangement of the sweeping blades 1312 can cover the entire scraping area of ​​the inner wall of the flow channel 21, thereby improving cleaning efficiency and reducing residual dust 40. For example, adjacent sweeping blades 1312 can abut against each other on their sidewalls or slightly overlap to form a continuous scraping surface. This arrangement allows the blades to cover the flow channel 21 more evenly along the circumference during the cleaning process, which is beneficial for scraping and loosening the dust 40, thereby improving cleaning efficiency. Of course, this is only one optional implementation method and does not constitute a limitation on the blade arrangement. Depending on the actual working conditions, such as the diameter of the flow channel 21, the thickness of the dust accumulation, the air volume of the fan 30, and the cleaning requirements, a certain interval can also be maintained between the blades to allow the airflow to smoothly discharge the scraped dust 40, achieving coordination between scraping and blowing. Therefore, the specific design of the blade clearance can be flexibly determined according to the actual operating conditions.

[0142] However, when the dust removal system 1 cleans the accumulated dust 40 in the flow channel 21, it needs to work in conjunction with the blower 30 to blow out the dust scraped off by the sweeping blades 1312. If the sweeping blades 1312 are arranged too densely, the airflow will be easily obstructed, the blowing effect will be poor, and the accumulated dust 40 will not be able to be discharged smoothly. Therefore, it is necessary to adjust the tangential angle of the sweeping blades 1312 relative to the axial direction of the flow channel 21 by rotating the connecting rod 1311, so that a suitable exhaust channel is formed between each sweeping blade 1312, thereby ensuring that the airflow blown by the blower 30 can smoothly carry away the scraped accumulated dust 40 in time, avoiding dead corners or residual accumulated dust 40 caused by unreasonable blade spacing. At the same time, this tangential angle adjustment makes the sweeping blades 1312 contact the inner wall of the flow channel 21 along the tangential direction, achieving a scraping effect similar to plowing and stirring, which can not only fully remove the deposited dust 40, but also loosen the dust attached to the inner wall, improving the overall cleaning efficiency. In order to balance the dust removal coverage and the exhaust effect, the adjustment range of the cutting angle is usually controlled between about 30° and 60°, preferably about 45°, so that the dust removal blades 1312 can cover most of the flow channel 21 cross section and form a reasonable airflow channel between each dust removal blade 1312, ensuring that the fan 30 blows dust smoothly and reducing the accumulation of dust or dust accumulation 40.

[0143] In Embodiment 1, since the rotation angle of the connecting rod 1311 is locked by the first helical tooth 1314 and the second helical tooth 1333, the angle of the sweeping blade 1312 can be set and fixed at one time during the assembly stage, making the device structure stable, with excellent anti-vibration performance, and ensuring that the blade angle does not shift during the cleaning process. This is suitable for occasions where the cleaning environment requires stability and has large vibrations. In Embodiment 2, the connecting rod 1311 is rotated by the drive gear 1334 and the drive component, which can adjust the angle of the sweeping blade 1312 in real time during the cleaning process, realizing continuous optimization of the blade angle. This not only adapts to different flow channel diameters 21 and ash accumulation thicknesses, but also dynamically adjusts the blade posture according to the air volume changes of the fan 30, so that the scraping, stirring and blowing work together to maintain efficient cleaning under different working conditions.

[0144] In summary, when using the above-mentioned dust removal system 1 to clean the accumulated ash 40, those skilled in the art can flexibly select the cleaning device 10 in Embodiment 1 or Embodiment 2 according to the actual working conditions: Embodiment 1 is suitable for occasions that require high structural stability and shock resistance and where the blade angle adjustment is infrequent; Embodiment 2 is suitable for scenarios where the cleaning task is complex, the amount of accumulated ash 40 and the conditions of the flow channel 21 vary greatly, and dynamic optimization of cleaning is desired, thereby taking into account dust coverage, exhaust efficiency, cleaning efficiency and maintenance convenience, and comprehensively improving the operating effect and reliability of the dust removal system 1.

[0145] Verification of technical effectiveness and / or analysis of solutions to technical problems: The dust removal device 10 and dust removal system 1 provided in this embodiment of the invention, by reasonably coordinating the dust removal component 13, the adjustment component 12 and the dust detector 11, construct a mechanical cleaning structure that combines axial movement along the flow channel 21 with radial cleaning, and combined with the directional airflow conveying of the fan 30, achieves efficient and safe cleaning of the dust accumulation 40 in the flow channel 21 through mechanical scraping and airflow blowing. The actual working process is as follows: When it is necessary to clean the accumulated dust 40 inside the flow channel 21 of the pipe body 20, simply install the cleaning device 10 inside the flow channel 21 and set the fan 30 at the inlet of the flow channel 21. At the same time, power is supplied to the fan 30 and the cleaning device 10 through the drive power supply. The moving part 122 drives the telescopic part 121 and the dust scraper 131 set on the telescopic part 121 to move along the axial direction of the flow channel 21, so that the dust scraper 131 can act on different axial positions of the inner wall of the flow channel 21. At the same time, the telescopic part 121 precisely adjusts the position of the dust scraper 131 in the radial direction, so that the dust-sweeping blades 1312 set at the free end of the dust scraper 131 can gradually approach the inner wall of the flow channel 21, so as to contact the dust accumulation layer 40 as needed, thereby scraping, loosening and removing the dust accumulation 40 attached to the inner wall of the flow channel 21 layer by layer. In addition, to facilitate the blower 30 to blow out the scraped dust 40, the rotating connecting rod 1311 adjusts the cutting angle of the dust sweeping blades 1312 and reasonably arranges the blade gaps. Under the premise of maintaining the dust scraping coverage, a suitable exhaust channel can be formed, so that the airflow blown by the blower 30 can smoothly carry away the scraped dust, avoid dust retention or secondary accumulation in the flow channel 21, and achieve the synergistic effect of scraping, loosening and dust blowing to improve the overall cleaning efficiency.

[0146] Furthermore, by controlling the gradual radial advancement of the scraper 131 along the flow channel 21 via the telescopic component 121, and the moving component 122 driving the scraper 131 to move axially, combined with the closed-loop feedback of the dust accumulation detector 11, this invention achieves on-demand cleaning and automatic adaptation to different dust accumulation states 40. This allows the cleaning device 10 to dynamically adjust the scraping depth of the scraping blades 1312 according to the actual dust accumulation thickness, ensuring uniform and reliable cleaning results and extending the service life of the scraping blades 1312. Compared to traditional methods that rely solely on mechanical cleaning or individual airflow, this invention can automatically adapt to changes in dust accumulation thickness and the inner diameter of the flow channel 21 during the cleaning process, achieving on-demand contact between the scraping blades 1312 and the dust accumulation 40. This avoids excessive friction leading to blade damage or wear of the flow channel 21, thereby ensuring the stability and reliability of the cleaning process.

[0147] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention. Finally, it should be stated that the above content is only used to illustrate the technical solution of the present invention and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A dust removal device, wherein the device is applied to a pipe body having a flow channel, characterized in that, The cleaning device includes a dust accumulation detector, an adjustment component, and a dust removal component disposed within the flow channel. The dust accumulation detector is used to detect the thickness of dust accumulation on the inner wall of the flow channel. The adjustment component includes a telescopic member having a fixed end and a telescopic end, and a movable member connected to the fixed end of the telescopic member. The movable member is used to drive the telescopic member to move axially along the flow channel. The dust removal component includes a dust scraper connected to the telescopic end of the telescopic member. The telescopic member is used to drive the dust scraper to move radially along the flow channel. The dust accumulation detector is electrically connected to the telescopic member.

2. The dust cleaning device according to claim 1, characterized in that, The dust removal assembly also includes a positioning component connected to the telescopic end of the telescopic component. The number of dust scraping components is multiple, and the multiple dust scraping components are arranged circumferentially on the side wall of the positioning component.

3. The dust cleaning device according to claim 2, characterized in that, The positioning component includes a fixed seat disposed on the telescopic end of the telescopic component. Each scraper includes a connecting rod connected to the fixed seat and a sweeping blade connected to the connecting rod. A protrusion is provided at the end of the connecting rod away from the sweeping blade. The fixed seat has multiple grooves adapted to the protrusions. The multiple grooves are arranged circumferentially along the outer wall of the fixed seat, and the protrusions are inserted into the grooves.

4. The dust cleaning device according to claim 3, characterized in that, Multiple first helical teeth are arranged circumferentially on the outer wall of each connecting rod. The first helical teeth on adjacent connecting rods mesh with each other to adjust the rotation angle of each dust sweeping blade.

5. The dust cleaning device according to claim 4, characterized in that, The dust removal assembly also includes a housing disposed on the retracted end of the telescopic member. The housing has a receiving cavity and a plurality of through holes penetrating the outer wall of the housing to the receiving cavity. The plurality of through holes are arranged circumferentially along the outer wall of the housing. The fixing seat and the connecting rod are disposed in the receiving cavity, and the end of the connecting rod away from the fixing seat passes through the through hole and is connected to the dust removal blade.

6. The dust cleaning device according to claim 5, characterized in that, The dust-sweeping blade is a straight plate structure; or, the dust-sweeping blade is an arc-shaped plate structure, and the curvature of the dust-sweeping blade gradually increases from the connecting rod toward the direction away from the fixed seat.

7. The dust cleaning device according to claim 6, characterized in that, The outer shell is also provided with a plurality of second helical teeth, which are arranged on the inner wall of the receiving cavity, and the first helical teeth on the plurality of connecting rods mesh with each other to control the rotation of the connecting rods.

8. The dust cleaning device according to claim 6, characterized in that, The outer casing is also provided with a drive gear, which is disposed in the receiving cavity and meshes with the first helical tooth on the connecting rod. The drive gear can drive multiple connecting rods to rotate, thereby adjusting the rotation angle of each of the dust sweeping blades.

9. A dust removal system, characterized in that, The dust removal system includes a dust removal device as described in any one of claims 1 to 8, a pipe body with a flow channel, a fan for blowing air into the flow channel, and a drive power supply for supplying power to the dust removal device and the fan. The dust removal device is disposed in the flow channel, and the drive power supply is electrically connected to the dust detector, the adjustment component, and the fan, respectively.

10. A dust removal method, characterized in that, The dust removal system of claim 9 cleans the accumulated dust, and the dust removal method includes the following steps: Step 1: Install the cleaning device in the flow channel and install the fan at the inlet of the flow channel; the drive power supply supplies power to the cleaning device and the fan. Step 2: Use the dust accumulation detector to measure the actual inner diameter of the flow channel and compare the actual inner diameter of the flow channel with the designed inner diameter to determine the thickness of the dust accumulation on the inner wall of the flow channel; Step 3: Based on the ash accumulation thickness, the ash accumulation detector adjusts the extension length of the telescopic end of the telescopic component, so that the ash scraper moves radially along the flow channel to the predetermined ash removal depth; Step four: The moving component drives the telescopic component to move along the axial direction of the flow channel, so that the scraper scrapes the accumulated dust on the inner wall of the flow channel, and the fan blows the scraped dust out of the flow channel; Step 5: According to the preset detection cycle of the dust accumulation detector, repeat steps 2 to 4 until the dust accumulation thickness on the inner wall of the flow channel is less than or equal to the safety threshold, and the cleaning is completed.

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