Automatic mud cleaning device for long spiral drill pipe and its usage method

Abstract

This invention relates to the field of screw cleaning technology, and more particularly to an automatic mud-cleaning device and method for long spiral drill pipes. The technical solution includes a casing sleeve, the inner wall of which is provided with several fixing components, each with a scraper mounted on it. A support portion is located outside the casing sleeve, including a bearing frame placed on the ground. Inside the bearing frame is a lifting component that adjusts the height of the casing sleeve. This invention employs a modular adjustable scraper and lifting structure, adaptable to various drill pipe specifications and complex geological conditions. It is easy to disassemble, assemble, and transport. It integrates negative pressure dust collection, atomized dust suppression, and solid-liquid separation structures, effectively suppressing dust. It is safe, environmentally friendly, and allows for water recycling. Employing a dual cleaning mode of mechanical scraping and wind-powered fine cleaning, it thoroughly cleans the mud without blind spots, enabling integrated drilling and mud-cleaning operations. It boasts a high degree of automation and high construction efficiency. The equipment is driven by airflow linkage, resulting in a low failure rate, effectively reducing maintenance costs and ensuring the quality of pile foundation construction.

Description

Technical Field

[0001] This invention relates to the field of screw cleaning technology, and in particular to an automatic mud-cleaning device and method for using long spiral drill pipes. Background Technology

[0002] Long spiral bored piles are widely used in building and municipal pile foundation construction. When the drill rod is continuously drilling, the rod body and spiral blades are very prone to adhering to clay, silt, fine sand and other soil impurities. If they are not cleaned in time, the accumulation and hardening of soil will cause problems such as drill rod blockage, increased drilling resistance and deviation in hole accuracy, which will directly affect the quality and progress of pile foundation construction.

[0003] Currently, the main methods for cleaning mud at construction sites are manual cleaning and simple fixed mud cleaning structures. Manual mud cleaning requires machine shutdown, which is inefficient and has poor construction continuity. Furthermore, close-range operation poses safety hazards such as pinching, crushing, and dust inhalation. Traditional fixed mud cleaning structures have poor adaptability and cannot be adapted to different specifications of drill rods and complex geological conditions, which can easily lead to problems such as incomplete mud cleaning and jamming. Existing equipment generally lacks professional dust removal and reduction structures, resulting in a large amount of dust generated during mud cleaning operations, poor environmental protection, and difficulty in meeting the requirements of green construction. In addition, most existing mud cleaning equipment is an integral structure, lacking height adjustment and modular disassembly and assembly functions, making transportation, maintenance and storage inconvenient; and relying solely on a single mechanical mud scraping method results in blind spots in mud cleaning, insufficient precision, and an inability to achieve simultaneous drilling and mud cleaning operations.

[0004] Therefore, this application proposes an automatic mud-cleaning device for long spiral drill pipes and a method for using it. Summary of the Invention

[0005] The purpose of this invention is to address the problem in the prior art that long spiral drill rods are prone to soil adhesion, which can easily cause drill rod blockage, poor hole accuracy, and seriously affect the quality and progress of pile foundation construction. The invention proposes an automatic mud removal device for long spiral drill rods and a method for using it.

[0006] The technical solution of the present invention: On one hand, an automatic mud-removing device for long spiral drill pipes, comprising: A protective sleeve, wherein the inner wall of the protective sleeve is provided with a plurality of retaining components, and a scraper is installed on the retaining components; A support portion is provided on the outside of the protective sleeve, the support portion including a bearing frame placed on the ground, and a lifting component for adjusting the height of the protective sleeve is provided inside the bearing frame; The dust removal unit includes a guide component installed at one end of the lifting assembly for conveying dust, and a dust suction component is provided at one end of the guide component.

[0007] Optionally, the retaining component includes an assembly hole formed on the surface of the sleeve, a limiting groove formed on the surface of the assembly hole, a limiting block that engages with the limiting groove fixedly installed at one end of the scraper, a retaining hole formed on the surface of the limiting block, and a bolt extending into the inner cavity of the retaining hole being threadedly connected to the inner cavity of the assembly hole.

[0008] Optionally, the lifting assembly includes assembly slots formed on both sides of the inner wall of the support frame. A lifting motor is embedded in the bottom of the inner cavity of one of the assembly slots, and a lifting screw is fixedly installed at the output end of the lifting motor. A shaping rod is fixedly installed in the inner cavity of the other assembly slot. A lifting frame is installed at one end of the lifting screw and the shaping rod. A protective sleeve is fixed in the middle of the inner cavity of the lifting frame. The outside of the lifting frame is installed with the outside of the guide assembly.

[0009] Optionally, the guiding assembly includes a suspension frame fixed to the outside of the lifting frame. A diversion pipe is fixedly installed in the inner cavity of the suspension frame. The surface of the diversion pipe has three ventilation holes, one of which faces the lower part of the protective sleeve and the other faces the lower part of the drill rod. A stretchable first corrugated pipe is fixedly installed on the last ventilation hole of the diversion pipe. One end of the first corrugated pipe is installed to the outside of the dust collection assembly.

[0010] Optionally, the dust collection assembly includes an assembly box assembled at one end of the first corrugated pipe. A guide hole is provided on one side of the assembly box, a dustproof net is fixedly installed in the inner cavity of the guide hole, a fan is fixedly installed outside the guide hole, a dust discharge port is provided at the bottom of the assembly box, a guide component is provided in the inner cavity of the dust discharge port, a dust suppression component is provided at the top of the assembly box, and an airflow transmission component is installed at the exhaust port of the fan.

[0011] Optionally, the flow guiding assembly includes a transmission rod movably installed inside the dust discharge port cavity, several sets of impellers are fixedly installed on the outside of the transmission rod, a drive rod is fixedly installed on the transmission rod, and a wind turbine wheel facing the air inlet of the fan is fixedly installed at one end of the drive rod.

[0012] Optionally, the dust suppression component includes a water storage tank located at the top of the assembly box, a water pump that penetrates the inner cavity is located on the outside of the water storage tank, a transmission pipe is fixedly installed at the output end of the water pump, an atomizing sprayer is fixedly installed at one end of the transmission pipe that extends into the inner cavity of the assembly box, and a storage box is located at the bottom of the assembly box near the dust discharge port, with a filter disc placed on the surface of the storage box.

[0013] Optionally, the transmission component includes a second corrugated pipe fixed to the output end of the fan, and a lifting component is provided on the top of the assembly box. A clamping frame is fixedly installed on the lifting end of the lifting component. The inner cavity of the clamping frame is fixed to one end of the second corrugated pipe, and the exhaust port of the second corrugated pipe faces the top of the protective sleeve.

[0014] Optionally, the lifting component includes a base disposed at the bottom of the assembly box, and the base is fixed to the surface of the assembly box by a screw. A retaining tube is fixedly installed on the top of the base, and an extension rod is threadedly connected to the top of the retaining tube.

[0015] On the other hand, this application provides a method of using the automatic mud-cleaning device for long auger drill pipes as described in the first aspect, comprising: S1. Based on the blade size of the long spiral drill pipe, the scraper is assembled inside the casing using a retaining assembly; S2. Start the lifting component of the support section to drive the sleeve and scraper to rise and fall as a whole to complete the height adaptation; S3. Activate the dust collection component, which uses the guide component to collect the mud and dust generated during the mud cleaning operation under negative pressure; S4. After the mud and dust enter the assembly box, the dust suppression component is activated to atomize and suppress the dust. The fan drives the flow guiding component to guide the mud and water mixture to the collection box, and achieve solid-liquid separation through the filter plate. S5. After the scraper removes the mud and dirt from the surface of the drill rod, the lifting component of the transmission assembly is controlled, and the airflow output by the blower blows onto the drill rod to complete the secondary cleaning.

[0016] Compared with the prior art, this application includes at least the following beneficial technical effects: This invention adopts a detachable fixing component and scraper structure, which can quickly replace the scraper according to the drill rod with different diameters and different blade spacings, adapting to a variety of construction geology, and effectively solving the problems of easy jamming, limited adaptability and poor mud removal effect of traditional equipment; The lifting screw assembly allows for flexible adjustment of the working height based on the drill rod length and construction depth, achieving full coverage and no dead angles in mud cleaning. The overall modular and split structure makes the equipment easy to assemble, transport, repair and store without occupying extra construction space. This device integrates negative pressure dust collection, atomized dust suppression, and solid-liquid separation structures, which can collect dust from all directions, suppress dust diffusion, prevent construction workers from inhaling harmful dust, and achieve water resource recycling after mud-water separation. There is no secondary dust, which meets the green construction standards.

[0017] This invention adopts a dual cleaning method of "mechanical scraping + air-powered fine cleaning". First, the thick mud and dirt are removed by scraper, and then the residual floating mud is blown away by clean airflow, eliminating blind spots in mud cleaning, greatly improving the cleanliness of drill rods, effectively improving problems such as hole deviation and irregular hole diameter, and improving the quality of pile foundation forming. The device can achieve integrated synchronous operation of "drilling-mud cleaning" without stopping the machine or requiring close-range manual cleaning, which greatly reduces downtime, lowers labor costs and safety risks, improves the level of mechanization and continuity of pile foundation construction, and is suitable for high-precision and high-efficiency pile foundation construction scenarios. The device utilizes the airflow linkage of the fan to drive the flow guide structure, eliminating the need for additional power components. Its structure is simplified and energy consumption is low. Modular components can be disassembled and maintained individually, making it less prone to dust accumulation and jamming. The equipment has a low failure rate and a long service life, effectively reducing subsequent operation and maintenance costs. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the automatic mud-removing device for long spiral drill rods; Figure 2 This is a schematic diagram of the internal structure of the protective sleeve; Figure 3 This is a schematic diagram of the assembly structure of the support component; Figure 4 This is a schematic diagram of the dust suppression component assembly structure; Figure 5 This is a schematic diagram of the assembly structure of the lifting component.

[0019] Figure label: 1. Protective sleeve; 2. Retention assembly; 21. Assembly hole; 22. Limiting groove; 23. Limiting block; 24. Retention hole; 25. Bolt; 3. Scraper; 4. Support unit; 41. Bearing frame; 42. Lifting assembly; 421. Assembly slot; 422. Lifting motor; 423. Lifting screw; 424. Shaping rod; 425. Lifting frame; 5. Dust removal section; 51. Guiding assembly; 511. Suspension bracket; 512. Diverter pipe; 513. First corrugated pipe; 52. Dust collection assembly; 521. Assembly box; 522. Guide hole; 523. Dustproof net; 524. Fan; 525. Dust outlet; 6. Flow guiding assembly; 61. Transmission rod; 62. Impeller; 63. Drive rod; 64. Wind turbine; 7. Dust suppression components; 71. Water tank; 72. Water pump; 73. Transmission pipe; 74. Atomizing jet; 75. Storage box; 76. Filter disc; 8. Transmission component; 81. Second corrugated pipe; 82. Lifting component; 821. Base; 822. Fixing pipe; 823. Extension rod; 83. Clamping frame. Detailed Implementation

[0020] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0021] Example 1, as Figures 1-5 As shown, the automatic mud cleaning device for long spiral drill rod proposed in this invention includes a protective sleeve 1. The inner wall of the protective sleeve 1 is provided with a plurality of fixing components 2. A scraper 3 is installed on the fixing components 2. Before using the device of this application, the long spiral drill rod is first adapted to the protective sleeve 1 and the scraper 3 inside. Then, when the long spiral drill rod is rotated out, the surface of the rotating long spiral drill rod will scrape the surface of the scraper 3. At this time, the automatic cleaning of the surface of the long spiral drill rod can be automatically realized. Meanwhile, the casing sleeve 1 prevents soil clods from splashing over a large area during the scraping process, which could easily injure nearby personnel. The fixing component 2 includes an assembly hole 21 on the surface of the casing sleeve 1, and a limiting groove 22 on the surface of the assembly hole 21. One end of the scraper 3 is fixedly installed with a limiting block 23 that engages with the limiting groove 22. When installing the scraper 3, simply insert the scraper 3 into the limiting groove 22 along with the limiting block 23. The surface of the limiting block 23 has a fixing hole 24. The inner cavity of the assembly hole 21 is threaded with a bolt 25 extending into the inner cavity of the fixing hole 24. The operator connects and fixes the limiting block 23 through the fixing hole 24 on the casing sleeve 1 and the bolt 25. The fixing component 2 allows for the installation and fixing of scraper 3 of different sizes on the casing sleeve 1, thus achieving the installation and fixing of scraper 3 on the casing sleeve 1. Conversely, it allows for disassembly, meeting the usage requirements of different sizes. This fulfills the surface mud cleaning requirements for long spiral drill rods of different sizes.

[0022] In Example 2, based on Example 1, the automatic mud cleaning device for long spiral drill rods of this application further includes a support part 4 disposed outside the casing 1. The support part 4 is used to adaptively adjust the height of the casing 1, thereby making it suitable for long spiral drill rods of different lengths. Support 4 includes a support frame 41 placed on the ground. The support frame 41 supports the protective sleeve 1 in the embodiment. The support frame 41 has a lifting assembly 42 inside, which adjusts the height of the protective sleeve 1. The lifting assembly 42 includes assembly slots 421 on both sides of the inner wall of the support frame 41. A lifting motor 422 is embedded at the bottom of the inner cavity of one assembly slot 421. The lifting motor 422 is an asynchronous motor, and a lifting screw 423 is fixedly installed at the output end of the lifting motor 422. A shaping rod 424 is fixedly installed in the inner cavity of the other assembly slot 421. 3. A lifting frame 425 is installed at one end of the shaping rod 424. The protective sleeve 1 is fixed to the lifting frame 425 with screws. Then, according to the actual height requirements, the lifting motor 422 is started. The lifting motor 422 will drive the lifting screw 423 inside the assembly slot 421 to rotate. The rotating lifting screw 423 will work with the shaping rod 424 to drive the lifting frame 425 to adjust the height. At this time, the adjustment requirements of the protective sleeve 1 at different heights can be realized, which can meet the cleaning requirements of long spiral drill rods of different lengths. At the same time, the height adjustability will make maintenance more convenient. The lifting assembly 42 adjusts the height of the protective sleeve 1 according to the actual processing conditions to meet the usage requirements of different heights and improve the overall adaptability; A dust removal unit 5 is provided on the basis of the support unit 4. The dust removal unit 5 includes a guide component 51 installed at one end of the lifting component 42 to transport dust. The outside of the lifting frame 425 is installed with the outside of the guide component 51. Specifically, the guide component 51 is fixed on the suspension frame 511 outside the lifting frame 425. The suspension frame 511 moves synchronously with the lifting frame 425. A diversion pipe 512 is fixedly installed in the inner cavity of the suspension frame 511. The diversion pipe 512 is used to transport the absorbed dust and other impurities. Three ventilation holes are opened on the surface of the diversion pipe 512. Two of the ventilation holes are used to suck in dust and other impurities. One ventilation hole faces the bottom of the protective sleeve 1 and the other ventilation hole faces the bottom of the drill rod. A stretchable first corrugated pipe 513 is fixedly installed on the last ventilation hole of the diversion pipe 512. The setting of the first corrugated pipe 513 meets the usage requirements of different lengths. At the same time, the first corrugated pipe 513 is used to transport the dust and other impurities absorbed by the diversion pipe 512. At this time, the guiding component 51 realizes the transmission of dust generated during the mud cleaning process, and also guides the dust and other impurities generated by the collision of soil clods falling to the ground, so as to avoid a large amount of dust spreading in the working area of ​​the long spiral drill rod. At the same time, the treatment of dust and other impurities also avoids the safety hazards caused by workers inhaling a large amount of dust and other impurities. A dust-collecting component 52 is provided at one end of the guiding component 51. The dust-collecting component 52 is used to guide the airflow and realize the transmission of dust and other impurities. One end of the first corrugated pipe 513 is installed on the outside of the dust-collecting component 52. Specifically, the dust-collecting component 52 is assembled into the assembly box 521 at one end of the first corrugated pipe 513. A guide hole 522 is opened on one side of the assembly box 521. A dustproof net 523 is fixedly installed in the inner cavity of the guide hole 522. A fan 524 is fixedly installed on the outside of the guide hole 522. During the mud cleaning process, the fan 524 can be started. At this time, the fan 524 will work through the assembly box 521 and the diversion pipe 512 at one end of the first corrugated pipe 513 to clean the area below the protective sleeve 1 and the ground. The system absorbs dust and other impurities synchronously, preventing them from spreading in the air and ensuring the breathing safety of nearby workers. The increased wind speed also improves the efficiency of removing adhering substances from the surface of the long spiral drill rod, thereby enhancing cleaning capabilities. The bottom of the assembly box 521 has a dust exhaust port 525, which guides the dust and other impurities absorbed by the guide component 51 to be transported into the assembly box 521. Subsequently, the dust and other impurities are filtered by the dustproof net 523 in the guide hole 522 for both gas and solids. At this point, only gas can be discharged through the fan 524, while solids can only be discharged through the dust exhaust port 525 into the inner cavity of the assembly box 521. This ensures that the finally transmitted gas is in a clean state.

[0023] In Example 3, based on Example 2, a flow guiding component 6 is provided in the inner cavity of the dust outlet 525 in the dust collection component 52. The flow guiding component 6 is used to guide and discharge dust and other impurities inside the assembly box 521. The flow guiding assembly 6 includes a transmission rod 61 movably installed inside the dust discharge port 525. Several sets of impellers 62 are fixedly installed on the outside of the transmission rod 61. Two sets of parallel impellers 62 can cover the dust discharge port 525. A drive rod 63 is fixedly installed on the transmission rod 61. A wind turbine 64 facing the air inlet of the fan 524 is fixedly installed at one end of the drive rod 63. When the fan 524 is running, the gas will drive the wind turbine 64 to rotate. The rotating wind turbine 64 will drive the transmission rod 61 to rotate synchronously through the drive rod 63. At this time, the transmission rod 61 will drive the impeller 62 to rotate, so that solid impurities such as dust particles can be discharged. At this time, the rotating impeller 62 can be used to improve the discharge efficiency of impurities and prevent impurities from being retained inside the assembly box 521. The top of the assembly box 521 is provided with a dust suppression component 7. The dust suppression component 7 includes a water storage tank 71 located on the top of the assembly box 521. The surface of the water storage tank 71 is provided with a water inlet and a water outlet. Before use, the water inlet is opened to inject an appropriate amount of liquid into the water storage tank 71. A water pump 72 is installed on the outside of the water tank 71, penetrating the inner cavity. A transmission pipe 73 is fixedly installed at the output end of the water pump 72. When dust and other impurities are transported into the assembly box 521 with the airflow, the water pump 72 is started simultaneously. The water pump 72 will transport the liquid inside the water tank 71 to the transmission pipe 73. An atomizing sprayer 74 is fixedly installed at one end of the transmission pipe 73 extending into the inner cavity of the assembly box 521. Then, the transmission pipe 73 will atomize the liquid through the atomizing sprayer 74. In this way, the atomized liquid can reduce dust in the airflow. A collection box 75 is set at the bottom of the dust outlet 525 of the assembly box 521. A filter plate 76 is placed on the surface of the collection box 75. In this way, with the flow guiding component 6, the moist solid particles are guided into the filter plate 76 in the collection box 75 for solid-liquid separation. At this time, the discharged solid particles are in a moist state and will not diffuse again due to the airflow, ensuring the cleanliness of the surrounding air. The solid-liquid separation also facilitates subsequent processing work, such as the recycling of liquid. An airflow transmission component 8 is installed at the exhaust port of the fan 524. The transmission component 8 includes a second corrugated pipe 81 fixed at the output end of the fan 524. A lifting component 82 is provided on the top of the assembly box 521. The lifting component 82 is used for height adjustment and adapts to the protective sleeve 1 at different heights. Specifically, the lifting component 82 includes a base 821 located at the bottom of the assembly box 521, and the base 821 is fixed to the surface of the assembly box 521 by screws. This allows for easy disassembly and storage when not in use. A retaining tube 822 is fixedly installed on the top of the base 821, and an extension rod 823 is threadedly connected to the top of the retaining tube 822. The height can be adjusted by manually rotating the extension rod 823 in conjunction with the retaining tube 822, according to the actual height requirements. The lifting end of the lifting component 82 is fixedly equipped with a clamping frame 83. Specifically, the bottom of the clamping frame 83 is fixed to one end of the top of the extension rod 823, the inner cavity of the clamping frame 83 is fixed to one end of the second corrugated pipe 81, and the exhaust port of the second corrugated pipe 81 faces the top of the protective sleeve 1. When the blower 524 discharges clean airflow, the second corrugated pipe 81, in conjunction with the lifting component 82, can transmit the airflow to the top of the protective sleeve 1. At this time, the surface of the long spiral drill rod after mud scraping can be cleaned by airflow, thus achieving a second cleaning of the long spiral drill rod and improving the overall cleanliness.

[0024] Example 4, based on Example 3 above, provides a method for using the automatic mud-cleaning device for long spiral drill pipes, specifically including: S1. Based on the blade size of the long spiral drill rod, the scraper 3 is assembled inside the casing sleeve 1 through the fixing component 2. The modular disassembly and assembly structure allows for quick alignment, assembly, disassembly, and replacement of the scraper 3. During actual assembly, the corresponding scraper 3 can be selected according to the drill rod diameter, blade spacing, and geological conditions. The end limiting block 23 of the scraper 3 is precisely inserted into the limiting groove 22 on the inner wall of the casing sleeve 1 to complete the positioning. Then, the bolts 25 are used to pass through the assembly hole 21 and the fixing hole 24 of the limiting block 23 to lock and fix it, ensuring that the multiple sets of scraper 3 are installed flat, tight, and without looseness, and are precisely matched with the spiral blades of the drill rod. The scraper 3 can be quickly disassembled and replaced for different working conditions to meet the mud cleaning operation needs of multiple specifications of drill rods. After assembly, the assembly accuracy is checked one by one to prevent mud cleaning deviation and missed scraping. S2. Start the lifting assembly 42 of the support part 4 to drive the casing sleeve 1 and scraper 3 to lift as a whole, and complete the height adaptation. The whole equipment can achieve quick assembly and precise height adjustment. Before operation, place the bearing frame 41 stably on the flat working surface to ensure that the overall support is stable and without tilting. Drive the lifting screw 423 to rotate through the lifting motor 422, and cooperate with the positioning rod 424 to limit and guide, drive the lifting frame 425 and casing sleeve 1 to lift as a whole smoothly. Adjust the working height precisely according to the drill rod length and construction depth so that the casing sleeve 1 and scraper 3 completely cover the drill rod cleaning area. At the same time, the adjustable characteristics of the lifting structure can be used to adapt to different construction height conditions. When the equipment is inspected and disassembled, the height can be adjusted to adapt to the operating space, which greatly improves the convenience of disassembly and assembly. S3. Start the dust collection component 52. The guide component 51 collects the mud and dust generated during the mud cleaning operation under negative pressure. The dust removal component of the device adopts a split and detachable structure. When it arrives on site, the first corrugated pipe 513, the diversion pipe 512 and the assembly box 521 can be quickly connected and assembled to ensure that the connection is tight and airtight. When operating, the fan 524 is started in advance to form a stable negative pressure airflow. Through the multi-directional ventilation holes of the diversion pipe 512, the dust under the casing 1, around the drill rod and on the ground is adsorbed and collected in all directions. The power of the fan 524 can be flexibly adjusted according to the dust concentration on site to effectively suppress the dust in the working area. This not only avoids the breathing safety hazards of personnel, but also helps to peel off the light floating mud on the surface of the drill rod and improves the mud cleaning efficiency. After the operation is completed, the connection structure between the first corrugated pipe 513 and the diversion pipe 512 can be quickly disassembled for easy equipment transportation and storage. S4. After the mud and dust enter the assembly box 521, the dust suppression component 7 is activated to atomize and suppress the dust. The fan 524 drives the flow guiding component 6 to guide the mud-water mixture to the collection box 75, and the solid-liquid separation is achieved through the filter plate 76. Before operation, the assembly and verification of the dust suppression component 7 and the flow guiding component 6 are completed. An appropriate amount of clean water is injected into the water storage tank 71, and the unobstructedness of the water pump 72, transmission pipe 73, and atomizing jet 74 is checked. At the same time, the rotation flexibility of the impeller 62 and wind turbine 64 inside the dust outlet 525 is checked to ensure that there is no jamming or blockage. After the mud and dust enter the assembly box 521, the atomizing jet 74 sprays out a fine water mist to achieve dust agglomeration and dust suppression. The airflow of the fan 524 drives the flow guiding component 6 to operate continuously and automatically discharge the mud-water mixture. The solid-liquid separation is completed through the filter plate 76 inside the collection box 75. The separated clean water can be recycled, and the wet mud and sludge will not generate secondary dust. After the operation is completed, the collection box 75 and the filter plate 76 can be disassembled separately for cleaning and maintenance. S5. After the scraper 3 removes the mud and dirt from the surface of the drill rod, the lifting component 82 of the transmission assembly 8 is controlled, and the airflow output by the blower 524 blows towards the drill rod to complete the secondary cleaning. The transmission assembly 8 has the characteristics of being detachable and adjustable. Before operation, the lifting component 82 is firmly assembled on the top of the assembly box 521 by the screw of the base 821. The matching height of the fixing tube 822 and the extension rod 823 is adjusted to complete the alignment and fixation of the second corrugated tube 81. After the scraper 3 completes the initial mechanical mud scraping, the height of the lifting component 82 is precisely adjusted so that the exhaust port of the second corrugated tube 81 faces the top of the drill rod. The filtered clean airflow is used to perform all-round wind power fine cleaning of the drill rod, removing the residual thin layer of floating mud, making up for the blind spots of mechanical mud cleaning, and greatly improving the overall cleanliness of the drill rod. When the equipment is not in use, the fixing screw of the base 821 can be removed, and the transmission assembly 8 can be disassembled and stored separately to save storage space.

[0025] When used in combination with the above embodiments one, two, three, and four, the following effects are achieved: Real-time mud removal during drill rod lifting and lowering, balancing safety, efficiency, and environmental protection, has become an important direction for the mechanization upgrade of pile foundation engineering. The casing 1, located outside the drill rod, rises and falls synchronously with it, effectively constraining the path of falling mud. Scrapers 3 are distributed along both sides of the inner wall of the casing 1, removing attached mud through continuous scraping by the spiral blades. The adjustable cleaning structure automatically adapts to the drill rod diameter and spiral angle, ensuring consistent mud removal under different working conditions. The system is integrated into the main body of the drilling rig, requiring no additional space, offering strong operational continuity, significantly improving construction efficiency and site cleanliness, and enhancing mud removal under complex geological conditions. Adaptability: The adjustable scraper structure can accommodate drill rods of different diameters and scraper spacing, while preventing soil from getting stuck in the device. This improves the desliming effect in complex geological conditions, optimizes the construction process and environmental protection requirements, enhances drill rod stability and hole quality, reduces vibration and deviation, and indirectly improves hole quality and construction efficiency. It is especially suitable for scenarios with high precision requirements for pile foundations, such as high-rise buildings. This patent is applicable to long spiral pile foundation construction operations, solving the inefficiency and safety hazards of manual cleaning. In traditional pile foundation construction, it realizes the integration of "drilling-sludge cleaning", which not only avoids the safety risks of manual operation, but also reduces downtime.

[0026] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An automatic mud-cleaning device for long spiral drill rods, characterized in that, include: The inner wall of the sleeve (1) is provided with a plurality of retaining components (2), and a scraper (3) is installed on the retaining components (2). A support part (4) is provided outside the protective sleeve (1). The support part (4) includes a support frame (41) placed on the ground. The support frame (41) is provided with a lifting component (42) that drives the height adjustment of the protective sleeve (1). The dust removal unit (5) includes a guide component (51) installed at one end of the lifting component (42) to transport dust, and a dust suction component (52) is provided at one end of the guide component (51).

2. The automatic mud-cleaning device for long spiral drill rods according to claim 1, characterized in that, The retaining component (2) includes an assembly hole (21) on the surface of the sleeve (1), a retaining groove (22) is formed on the surface of the assembly hole (21), a retaining block (23) that engages with the retaining groove (22) is fixedly installed at one end of the scraper (3), a retaining hole (24) is formed on the surface of the retaining block (23), and a bolt (25) extending into the inner cavity of the retaining hole (24) is threadedly connected to the inner cavity of the assembly hole (21).

3. The automatic mud-cleaning device for long spiral drill rods according to claim 1, characterized in that, The lifting assembly (42) includes assembly slots (421) on both sides of the inner wall of the support frame (41). A lifting motor (422) is embedded in the bottom of the inner cavity of one of the assembly slots (421). A lifting screw (423) is fixedly installed at the output end of the lifting motor (422). A shaping rod (424) is fixedly installed in the inner cavity of the other assembly slot (421). A lifting frame (425) is installed at one end of the lifting screw (423) and the shaping rod (424). A protective sleeve (1) is fixed in the middle of the inner cavity of the lifting frame (425). The outside of the lifting frame (425) is installed with the outside of the guide assembly (51).

4. The automatic mud-cleaning device for long spiral drill rods according to claim 1, characterized in that, The guide assembly (51) includes a suspension frame (511) fixed to the outside of the lifting frame (425). A diversion pipe (512) is fixedly installed in the inner cavity of the suspension frame (511). Three ventilation holes are opened on the surface of the diversion pipe (512). One ventilation hole faces the lower part of the protective sleeve (1), and another ventilation hole faces the lower part of the drill rod. A stretchable first corrugated pipe (513) is fixedly installed on the last ventilation hole of the diversion pipe (512). One end of the first corrugated pipe (513) is installed to the outside of the dust collection assembly (52).

5. The automatic mud-cleaning device for long spiral drill rods according to claim 1, characterized in that, The dust collection assembly (52) includes an assembly box (521) assembled at one end of the first corrugated pipe (513). A guide hole (522) is provided on one side of the assembly box (521). A dustproof net (523) is fixedly installed in the inner cavity of the guide hole (522). A fan (524) is fixedly installed on the outside of the guide hole (522). A dust discharge port (525) is provided at the bottom of the assembly box (521). A guide assembly (6) is provided in the inner cavity of the dust discharge port (525). A dust suppression assembly (7) is provided on the top of the assembly box (521). An airflow transmission assembly (8) is installed at the exhaust port of the fan (524).

6. The automatic mud-cleaning device for long spiral drill rods according to claim 5, characterized in that, The flow guiding assembly (6) includes a transmission rod (61) movably installed in the inner cavity of the dust discharge port (525). Several sets of impellers (62) are fixedly installed on the outside of the transmission rod (61). A drive rod (63) is fixedly installed on the transmission rod (61). A wind turbine (64) facing the air inlet of the fan (524) is fixedly installed at one end of the drive rod (63).

7. The automatic mud-cleaning device for long spiral drill rods according to claim 5, characterized in that, The dust suppression component (7) includes a water tank (71) located on the top of the assembly box (521). A water pump (72) penetrating the inner cavity is provided on the outside of the water tank (71). A transmission pipe (73) is fixedly installed at the output end of the water pump (72). An atomizing jet (74) is fixedly installed at one end of the transmission pipe (73) extending into the inner cavity of the assembly box (521). A collection box (75) is provided at the bottom of the dust discharge port (525) of the assembly box (521). A filter disc (76) is placed on the surface of the collection box (75).

8. The automatic mud-cleaning device for long spiral drill rods according to claim 5, characterized in that, The transmission component (8) includes a second corrugated pipe (81) fixed at the output end of the fan (524). A lifting component (82) is provided on the top of the assembly box (521). A clamping frame (83) is fixedly installed on the lifting end of the lifting component (82). The inner cavity of the clamping frame (83) is fixed to one end of the second corrugated pipe (81), and the exhaust port of the second corrugated pipe (81) faces the top of the protective sleeve (1).

9. The automatic mud-cleaning device for long spiral drill rods according to claim 8, characterized in that, The lifting component (82) includes a base (821) disposed at the bottom of the assembly box (521), and the base (821) is fixed to the surface of the assembly box (521) by a screw. A retaining tube (822) is fixedly installed on the top of the base (821), and an extension rod (823) is threadedly connected to the top of the retaining tube (822).

10. A method of using the automatic mud-cleaning device for long spiral drill pipes according to any one of claims 1-9, characterized in that, include: S1. According to the blade size of the long spiral drill pipe, the scraper (3) is assembled in the casing (1) through the retaining assembly (2). S2. Start the lifting assembly (42) of the support part (4) to drive the sleeve (1) and scraper (3) to lift as a whole to complete the height adaptation; S3. Start the dust collection component (52) and collect the mud and dust generated during the mud cleaning operation under negative pressure through the guide component (51); S4. After the mud and dust enter the assembly box (521), the dust suppression component (7) is activated to atomize and suppress the dust. The fan (524) drives the flow guiding component (6) to guide the mud and water mixture to the collection box (75) and achieve solid-liquid separation through the filter plate (76). S5. After the scraper (3) scrapes away the mud and dirt on the surface of the drill rod, the lifting part (82) of the control transmission component (8) is used to blow the airflow output by the blower (524) onto the drill rod to complete the secondary cleaning.

Images