A mud removal device for bored pile construction

Abstract

This invention provides a mud extraction device for bored pile construction, belonging to the field of mud treatment technology. The technical solution includes a base, on which an upper filtration mechanism, a lower filtration mechanism, and a mud pump are mounted. The upper filtration mechanism includes an upper ring with an upper annular groove. Several sets of filter holes are arranged on the inner bottom surface of the upper annular groove, and the mud pump's outlet is located above these filter holes. The lower filtration mechanism includes a lower ring mounted on several supports and positioned below the upper ring. The lower ring is coaxial with the upper ring and has a lower annular groove. Several sets of filter holes are arranged on the inner bottom surface of the lower annular groove. The beneficial effects of this invention are: the device has a simple structure, is easy to operate, and is ingeniously designed. Through the staggered arrangement of the first and second annular grooves and the different filter holes, it achieves further collection of residual water and mud composed of finer particles, avoiding water waste.

Description

[0001] This is a divisional application. The original application was entitled "A Drilled Shaft Construction Mud Removal Device," filed on September 10, 2024, with application number 202411261154.6. Technical Field

[0002] This invention relates to the field of mud treatment technology, and more particularly to a mud extraction device for bored pile construction. Background Technology

[0003] Currently, mud wall protection technology is commonly used in the drilling of cast-in-place piles. However, the treatment of waste mud has always been a problem in construction. Waste mud contains a large amount of clay, sand and minerals, which cannot be discharged directly or allowed to settle naturally. If it is not treated in time, it will not only affect the construction but also cause environmental pollution.

[0004] Many processing devices on the market currently filter the mud through a filter screen, and the particles are discharged directly from the outlet. The mud particles that remain on the particles, which consists of water and finer particles, are not further treated, resulting in water waste. For example, the authorization document with announcement number CN207143953U discloses a mud extraction device for piling of bridges, which has a similar problem.

[0005] Therefore, the present invention provides a mud removal device for bored pile construction. Summary of the Invention

[0006] The purpose of this invention is to provide a mud extraction device for bored pile construction that is simple to operate and avoids water waste.

[0007] This invention is achieved through the following measures:

[0008] A mud extraction device for bored pile construction is characterized in that it includes a base, and the base is provided with an upper filter mechanism and a lower filter mechanism in sequence by a plurality of sets of brackets. A mud pump that cooperates with the upper filter mechanism is provided on one side of the plurality of sets of brackets of the base by a mounting frame. The mud pump is used to extract mud and transport the mud through pipeline to the upper filter mechanism for filtration.

[0009] The upper filtration mechanism includes an upper ring set on several sets of the brackets. The upper ring is provided with an upper annular groove. Several sets of filter holes are provided on the inner bottom surface of the upper annular groove. The outlet of the mud pump is located above several sets of filter holes, that is, the mud being pumped will first fall on the filter holes.

[0010] The lower filtration mechanism includes a lower ring mounted on several sets of supports and located below the upper ring. The lower ring is coaxial with the upper ring and has a lower annular groove. Several sets of filter holes are provided on the inner bottom surface of the lower annular groove. The filter holes are located directly below the filter holes and the diameter of the filter holes is smaller than that of the filter holes. That is, the filter holes can filter out coarser particles in the mud. After the mud passes through the filter holes, it falls onto the filter holes below. The filter holes can filter out finer particles in the mud. Finally, the mud passes through the filter holes and enters the collection container below.

[0011] The invention also has the following specific features:

[0012] Both the upper annular groove and the lower annular groove include annular groove one and annular groove two. The inner bottom surface of annular groove one is lower than the inner bottom surface of annular groove two, and the arc length of annular groove one is less than the arc length of annular groove two. An inclined transition is provided at the two junctions of annular groove one and annular groove two.

[0013] The upper annular groove has a plurality of filter holes 1 on the inner bottom surface of the first annular groove, and the lower annular groove has filter holes 2 on the inner bottom surface of the first annular groove and the upper and lower annular grooves 2.

[0014] An upper discharge port is provided on one side of the inner bottom surface of the upper annular groove II, and an upper discharge pipe is provided below the upper discharge port, which is connected to the coarse particle collection box. A lower discharge port is provided on one side of the inner bottom surface of the lower annular groove II, and a lower discharge pipe is provided below the lower discharge port, which is connected to the fine particle collection box.

[0015] The base is provided with a rotating shaft, which is coaxially arranged with the upper and lower annular rings. Several sets of push plate mechanisms are evenly arranged on the rotating shaft, which respectively cooperate with the upper and lower annular grooves. The push plate mechanisms push the corresponding coarse and fine particles from the side away from the upper or lower discharge port, causing them to slide along the second annular groove. During the sliding process, finer particles and water on the coarse and fine particles will fall through the second filter hole until they reach the upper or lower discharge port. Then, the coarse particles fall into the coarse particle collection box through the upper discharge port, and the fine particles fall into the fine particle collection box through the lower discharge port.

[0016] The pusher mechanism includes a long rod mounted on the rotating shaft. A circular tube is rotatably mounted on the lower side of the free end of the long rod. A circular rod is slidably mounted inside the circular tube. A scraper is mounted on the lower side of the circular rod, which slides in cooperation with the upper or lower annular groove. The circular rod is positioned close to the inner side of the scraper to avoid the slurry outlet of the mud pump. The lower side of the scraper is in close contact with the inner bottom surface of the first or second annular groove, thereby pushing the particles on the bottom surface to the upper or lower discharge port.

[0017] An annular plate one is provided near the lower end of the circular tube, and an annular plate two is provided near the lower end of the circular rod. A spring is provided near the circular rod, with one end of the spring fixed to the annular plate one and the other end of the spring fixed to the annular plate two. The spring allows the lower side of the scraper to press against the inner bottom surface of the annular groove one or the annular groove two, and the inclined surface facilitates the transition between the annular groove one and the annular groove two.

[0018] The scraper has several sets of matching and vertically arranged arc-shaped partitions on one side facing the direction of rotation. The two outermost arc-shaped partitions of the scraper are respectively attached to the inner side of the corresponding groove. The arc-shaped partitions further separate the particles, so that the water on the particles can fall and be collected.

[0019] The lower front end of the arc-shaped partition plate is provided with an arc surface, so that the transition between the first annular groove and the second annular groove can be smoothly achieved through the inclined surface;

[0020] The lower side of the arc-shaped partition plate that is in close contact with the first or second annular groove is provided with a groove. Several sets of filter holes three, which penetrate the groove and have the same diameter as the second filter hole, are provided on both sides of the arc-shaped partition plate. Moisture and finer particles enter the groove through the filter holes three and then fall through the second filter hole below for collection.

[0021] The scraper has several sets of rotating shafts on its rear side away from the arc-shaped partition plate. Turbine blades are mounted on the rotating shafts. During the rotation of the scraper, the mud in the annular groove drives the turbine blades to rotate, and the interaction between them agitates the mud, resulting in more thorough filtration.

[0022] The upper and lower annular grooves are aligned and the outlet of the mud pump is located above the upper annular groove, that is, the upper annular groove is directly above the lower annular groove. In this way, the mud is filtered through the upper annular groove and then falls into the second annular groove for further filtration.

[0023] Both the upper and lower sides of the annular groove are equipped with receiving boxes on their lower sides. The receiving boxes are equipped with pipes that connect to the collection container located below the lower annular groove, thereby collecting the filtered mud and preventing water waste.

[0024] A motor is installed on the base, and a gear one is installed on the output shaft of the motor. A gear two that meshes with the gear one is installed on the periphery of the rotating shaft. The motor drives the rotating shaft to rotate, which in turn drives the pushing mechanism to rotate.

[0025] Working principle: First, the mud pump delivers the pumped mud to the upper filtration mechanism through pipelines. The mud to be filtered falls into the upper annular groove one and is filtered through the filter hole one. Coarser particles are retained in the annular groove one. The mud filtered through the filter hole one falls into the lower annular groove one and is further filtered through the filter hole two. Finer particles are retained in the lower annular groove one. The filtered mud is collected by the corresponding collection container below.

[0026] To further filter residual moisture and finer particles from coarse and fine particles and achieve water collection, the motor is started at the beginning of the above operation, causing the rotating shaft to rotate. This causes the pusher mechanism to rotate along the upper and lower annular grooves. During rotation, the scrapers on the upper and lower sides start rotating from the side of the upper and lower annular grooves near the upper and lower discharge ports, respectively. This drives the coarse particles in the upper annular groove and the fine particles in the lower annular groove to rotate and rotate through the inclined surface into the second annular groove. In this way, both coarse and fine particles are separated from the original slurry and slide along the second annular groove. During the sliding process, the coarse and fine particles can achieve further filtration of the slurry composed of residual moisture and finer particles on themselves. Finally, the coarse particles fall through the upper discharge port for collection, and the fine particles fall through the lower discharge port for collection. The final slurry composed of moisture and finer particles enters the collection container set below after passing through the filter hole two for collection, thereby avoiding water waste.

[0027] The beneficial effects of this invention are as follows: This device has a simple structure, is easy to operate, and has an ingenious design. By setting up the upper and lower staggered annular groove one and annular groove two and setting different filter holes, it can further collect the residual water on the particles and the mud composed of finer particles, thus avoiding water waste. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram of the upper filter mechanism in an embodiment of the present invention.

[0030] Figure 3 This is a schematic diagram of the pusher mechanism in an embodiment of the present invention.

[0031] The attached diagram is labeled as follows: 1. Base; 2. Lower filter mechanism; 3. Upper filter mechanism; 4. Mud pump; 5. Rotating shaft; 6. Push plate mechanism; 7. Upper discharge pipe; 8. Lower discharge pipe; 9. Upper annular groove; 10. Annular groove two; 11. Filter hole two; 12. Inclined surface; 13. Annular groove one; 14. Filter hole one; 15. Upper discharge port; 17. Long bar; 18. Round tube; 19. Spring; 20. Scraper; 21. Rotating shaft; 22. Turbine blade; 23. Arc surface; 24. Arc-shaped partition plate; 25. Filter hole three; 26. Groove. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0036] See Figure 1-3A mud extraction device for bored pile construction includes a base 1. The base 1 is provided with an upper filter mechanism 3 and a lower filter mechanism 2 arranged in sequence by several sets of supports. A mud pump 4 that cooperates with the upper filter mechanism 3 is provided on one side of the several sets of supports of the base 1 through an installation frame. The mud pump 4 is used to extract mud and transport the mud to the upper filter mechanism 3 through pipeline for filtration.

[0037] The upper filtration mechanism 3 includes an upper ring set on several sets of supports. An upper annular groove 9 is provided on the upper ring. Several sets of filter holes 14 are provided on the inner bottom surface of the upper annular groove 9. The outlet of the mud pump 4 is located above the several sets of filter holes 14, that is, the mud being pumped will first fall on the filter holes 14.

[0038] The lower filtration mechanism 2 includes a lower ring mounted on several sets of supports and located below the upper ring. The lower ring is coaxial with the upper ring and has a lower annular groove. Several sets of filter holes 11 are provided on the inner bottom surface of the lower annular groove. The filter holes 11 are located directly below the filter holes 14 and the diameter of the filter holes 11 is smaller than that of the filter holes 14. That is, the filter holes 14 can filter out coarser particles in the mud. After the mud passes through the filter holes 14, it falls onto the filter holes 11 below. The filter holes 11 can filter out finer particles in the mud. Finally, the mud enters the collection container below after passing through the filter holes 11.

[0039] Both the upper annular groove 9 and the lower annular groove include annular groove 13 and annular groove 2 10. The inner bottom surface of annular groove 13 is lower than the inner bottom surface of annular groove 2 10, and the arc length of annular groove 13 is less than the arc length of annular groove 2 10. Inclined surfaces 12 are provided at the two junctions of annular groove 13 and annular groove 2 10 for transition.

[0040] Several sets of filter holes 14 are provided on the inner bottom surface of the annular groove 13 of the upper annular groove 9, and filter holes 11 are provided on the inner bottom surface of the annular groove 13 of the lower annular groove and the two annular grooves 10 of the upper and lower annular grooves.

[0041] An upper discharge port 15 is provided on one side of the bottom inner surface of the upper annular groove 2 10. An upper discharge pipe 7 is provided below the upper discharge port 15 and is connected to the coarse particle collection box. A lower discharge port is provided on one side of the bottom inner surface of the lower annular groove 2 10. A lower discharge pipe 8 is provided below the lower discharge port and is connected to the fine particle collection box.

[0042] A rotating shaft 5 is provided on the base 1. The rotating shaft 5 is coaxially arranged with the upper and lower rings. Several sets of push plate mechanisms 6 are evenly arranged on the rotating shaft 5, which respectively cooperate with the upper annular groove 9 and the lower annular groove. The push plate mechanism 6 pushes the corresponding coarse and fine particles from the side away from the upper discharge port 15 or the lower discharge port, and pushes them to slide along the second annular groove 10. During the sliding process, the finer particles and water on the coarse and fine particles will fall through the filter hole 11 until they reach the upper discharge port 15 or the lower discharge port. Then the coarse particles fall into the coarse particle collection box through the upper discharge port 15, and the fine particles fall into the fine particle collection box through the lower discharge port.

[0043] The pusher mechanism 6 includes a long rod 17 mounted on a rotating shaft 5. A circular tube 18 is rotatably mounted on the lower side of the free end of the long rod 17. A circular rod is slidably mounted inside the circular tube 18. A scraper 20 is mounted on the lower side of the circular rod and slides with the upper annular groove 9 or the lower annular groove. The circular rod is positioned close to the inner side of the scraper 20 to avoid the slurry outlet of the mud pump 4. The lower side of the scraper 20 is in close contact with the inner bottom surface of the first annular groove 13 or the second annular groove 10, thereby pushing the particles on the bottom surface to the upper discharge port 15 or the lower discharge port.

[0044] A first annular plate is provided on the outer periphery near the lower end of the round tube 18, a second annular plate is provided on the outer periphery of the lower end of the round rod, and a spring 19 is provided on the outer periphery of the round rod. One end of the spring 19 is fixed on the first annular plate, and the other end of the spring 19 is fixed on the second annular plate. Through the action of the spring 19, the lower side of the scraper 20 can be pressed against the inner bottom surface of the first annular groove 13 or the second annular groove 10, and the transition between the first annular groove 13 and the second annular groove 10 is achieved through the inclined surface 12.

[0045] Several sets of matching and vertically arranged arc-shaped partition plates 24 are provided on the side of the scraper 20 facing the direction of rotation. The two outermost arc-shaped partition plates 24 of the scraper 20 are respectively attached to the inner side of the corresponding groove. The particles are further separated by the arc-shaped partition plates 24, so that the water on the particles can fall and be collected.

[0046] The lower front end of the arc-shaped partition plate 24 is provided with an arc surface 23, so that the transition between the first annular groove 13 and the second annular groove 10 can be smoothly achieved through the inclined surface 12;

[0047] The lower side of the arc-shaped partition plate 24 that is in close contact with the annular groove 13 or the annular groove 20 is provided with a groove 26. Several sets of filter holes 3 25 that penetrate into the groove 26 and have the same diameter as filter holes 2 11 are provided on both sides of the arc-shaped partition plate 24. Moisture and finer particles enter the groove 26 through the filter holes 3 25 and are then collected by falling through the filter holes 2 11 below.

[0048] Several sets of rotating shafts 21 are provided on the rear side of the scraper 20 away from the arc-shaped partition plate 24. Turbine blades 22 are provided on the rotating shafts 21. During the rotation of the scraper 20, the mud in the annular groove 13 will drive the turbine blades 22 to rotate. The interaction will agitate the mud and make the final filtration more thorough.

[0049] The upper and lower annular grooves 13 are aligned and the outlet of the mud pump 4 is located above the upper annular groove 13, that is, the upper annular groove 13 is directly above the lower annular groove 13. In this way, the mud is filtered through the upper annular groove 13 and then falls into the second annular groove 10 for further filtration.

[0050] Both the upper and lower annular grooves 10 are equipped with receiving boxes on their lower sides. Pipes are installed on the receiving boxes and connected to the collection container located below the lower annular groove 13, thereby collecting the filtered mud and preventing water waste.

[0051] A motor is installed on the base 1, and a gear 1 is installed on the output shaft of the motor. A gear 2 that meshes with the gear 1 is installed on the periphery of the corresponding rotating shaft 5. The motor drives the rotating shaft 5 to rotate, which in turn drives the push mechanism to rotate.

[0052] Working principle: First, the mud pump 4 pumps the extracted mud through the pipeline to the upper filter mechanism 3. The mud that has been filtered will fall into the upper annular groove 13 and be filtered through the filter hole 14. The coarser particles will be left in the annular groove 13. The mud filtered through the filter hole 14 will fall into the lower annular groove 13 and be further filtered through the filter hole 2 11. The finer particles will be left in the lower annular groove 13. The filtered mud will be collected through the corresponding collection container below.

[0053] To further filter residual moisture and finer particles from coarse and fine particles and achieve water collection, the motor is started at the beginning of the above operation, causing the rotating shaft 5 to rotate. This causes the pusher mechanism 6 to rotate along the upper and lower annular grooves 9 and 9, respectively. During rotation, the scrapers 20 on the upper and lower sides start to rotate from the side of the upper and lower annular grooves 13 closest to the upper discharge port 15 and the lower discharge port, respectively. This drives the coarse particles in the upper annular groove 13 and the fine particles in the lower annular groove 13 to rotate and then rotate through the inclined plane 12 into the second annular groove 10. In this way, both coarse and fine particles are separated from the original slurry and slide along the second annular groove 10. During the sliding process, the residual slurry composed of moisture and finer particles on the coarse and fine particles can be further filtered. Finally, the coarse particles fall through the upper discharge port 15 for collection, and the fine particles fall through the lower discharge port for collection. The final slurry composed of moisture and finer particles enters the collection container set below after passing through the filter hole 11, thus avoiding water waste.

[0054] The technical features of this invention not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this invention, and this invention is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention should also be within the protection scope of this invention.

Claims

1. A mud removal device for bored pile construction, characterized in that, Includes a base (1), the base (1) is provided with an upper filter mechanism (3) and a lower filter mechanism (2) in sequence by a number of brackets, and a mud pump (4) that cooperates with the upper filter mechanism (3) is provided on one side of the brackets of the base (1) by a mounting frame. The upper filter mechanism (3) includes an upper ring set on several sets of the brackets, an upper annular groove (9) is provided on the upper ring, and several sets of filter holes (14) are provided on the inner bottom surface of the upper annular groove (9). The outlet of the mud pump (4) is located above several sets of filter holes (14). The lower filter mechanism (2) includes a lower ring disposed on several sets of brackets and located below the upper ring. The lower ring is coaxially disposed with the upper ring. A lower annular groove is provided on the lower ring. Several sets of filter holes (11) are provided on the bottom surface of the inner side of the lower annular groove. Several sets of filter holes (11) are located directly below the filter hole (14) and the diameter of the filter holes (11) is smaller than the diameter of the filter hole (14). The upper annular groove (9) and the lower annular groove both include annular groove one (13) and annular groove two (10). The inner bottom surface of annular groove one (13) is lower than the inner bottom surface of annular groove two (10), and the arc length of annular groove one (13) is less than the arc length of annular groove two (10). An inclined surface (12) is provided at the two junctions of annular groove one (13) and annular groove two (10). Several sets of filter holes (14) are provided on the inner bottom surface of the first annular groove (13) of the upper annular groove (9), and filter holes (11) are provided on the inner bottom surface of the first annular groove (13) of the lower annular groove and the two upper and lower annular grooves (10). An upper discharge port (15) is provided on one side of the inner bottom surface of the upper annular groove (10), and an upper discharge pipe (7) is provided on the lower side of the upper discharge port (15). The upper discharge pipe (7) is connected to the coarse particle collection box. A lower discharge port is provided on one side of the inner bottom surface of the lower annular groove (10), and a lower discharge pipe (8) is provided on the lower side of the lower discharge port. The lower discharge pipe (8) is connected to the fine particle collection box. The base (1) is provided with a rotating shaft (5), which is coaxially arranged with the upper ring and the lower ring. The rotating shaft (5) is evenly provided with a number of push plate mechanisms (6) that respectively cooperate with the upper annular groove (9) and the lower annular groove. The push plate mechanism (6) includes a long bar (17) mounted on the rotating shaft (5). A round tube (18) is rotatably mounted on the lower side of the free end of the long bar (17). A round rod is slidably mounted inside the round tube (18). A scraper (20) is mounted on the lower side of the round rod and slides with the upper annular groove (9) or the lower annular groove. The lower side of the scraper (20) is in close contact with the bottom surface of the inner side of the first annular groove (13) or the second annular groove (10). The outer periphery of the round tube (18) near the lower end is provided with an annular plate one, the outer periphery of the lower end of the round rod is provided with an annular plate two, and the outer periphery of the round rod is provided with a spring (19). One end of the spring (19) is fixed on the annular plate one, and the other end of the spring (19) is fixed on the annular plate two. The scraper (20) has several sets of matching and vertically arranged arc-shaped partition plates (24) on one side facing the direction of rotation.

2. The mud removal equipment for bored pile construction according to claim 1, characterized in that, The lower front end of the arc-shaped partition plate (24) is provided with an arc surface (23); The arc-shaped partition plate (24) has a groove (26) on its lower side that is in close contact with the first annular groove (13) or the second annular groove (10). Both sides of the arc-shaped partition plate (24) are provided with several sets of filter holes (25) that penetrate the groove (26) and have the same diameter as the second filter hole (11).

3. The mud removal equipment for bored pile construction according to claim 1, characterized in that, The scraper (20) has several sets of rotating shafts (21) on its rear side away from the arc-shaped partition plate (24), and turbine blades (22) are provided on the rotating shafts (21).

4. The mud removal equipment for bored pile construction according to claim 1, characterized in that, The upper and lower annular grooves (13) are aligned and the outlet of the mud pump (4) is located above the upper annular groove (13).

5. The mud removal equipment for bored pile construction according to claim 1, characterized in that, A receiving box is provided on the lower side of the two annular grooves (10) on both the upper and lower sides. The receiving box is provided with a pipeline that connects to the collection container provided below the one annular groove (13) on the lower side.

6. The mud removal equipment for bored pile construction according to claim 1, characterized in that, A motor is provided on the base (1), and a gear is provided on the output shaft of the motor. A gear is provided on the periphery of the corresponding rotating shaft (5) to mesh with the gear.

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