Cast-in-place pile construction slurry separation device

By combining an inclined screening plate and a rotating screen cylinder as a separation mechanism, the problem of incomplete mud separation in existing technologies has been solved, achieving multi-stage fine separation and efficient classification and recycling of mud, and enhancing the flexibility and adaptability of the device.

CN223988366UActive Publication Date: 2026-03-13HUITONG ROAD & BRIDGE CONSTR GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing mud separation devices in cast-in-place pile construction are unable to achieve fine screening, resulting in incomplete separation of sand and mud, which affects the quality of classification and recycling.

Method used

The separation mechanism combines an inclined sieve plate with a rotating screen cylinder. Large particles are removed by inclined sieve screening, and small particles are separated by the centrifugal force of the rotating screen cylinder. Combined with a stirring mechanism, the slurry is prevented from clumping, ensuring that all components are fully mixed.

Benefits of technology

It achieves multi-stage fine separation of mud, improves separation efficiency and quality, and ensures efficient classification and recycling of sand and mud. The device is flexible and adaptable and suitable for different construction sites.

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Abstract

The utility model provides a cast-in-place pile construction slurry separating device, which relates to the technical field of building construction and comprises a separating box, a stirring barrel is arranged at the top of the separating box in a penetrating manner, a feeding hopper is arranged at the top of the stirring barrel in a penetrating manner, and a separating mechanism is arranged in the separating box and comprises a fixing plate fixedly arranged in the separating box. Springs are fixedly arranged at the tops of the fixing plates, a flow guide frame is fixedly arranged at one ends of the springs, an inclined screening plate is fixedly arranged at the top of the flow guide frame, a first motor is fixedly arranged at the bottom of the separation box, and a rotating shaft is fixedly arranged at the output end of the first motor. And a fixed cylinder cover is fixedly arranged in the separation box, and the surface of the rotary net cylinder is in threaded connection with a sealing plug. According to the device, large-particle impurities are screened out firstly, then small particles are finely separated, the mud separation effect is improved, and the practicability and the separation efficiency of the device are integrally improved.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a mud separation device for cast-in-place pile construction. Background Technology

[0002] In the construction field, cast-in-place pile construction is a common foundation treatment method. During the construction process, a large amount of mud is used to clean the hole and protect the wall. After use, the mud is directly discharged. The sand and gravel in the mud can be used as backfill material. If it is directly discharged, it will cause a waste of resources.

[0003] Existing facilities can only filter and separate mud using filter plates. However, the agglomerates in the mud contain a large amount of sand and gravel. If the agglomerates are not broken up beforehand, the filtration and separation effect of the mud will be affected.

[0004] A search revealed that Chinese Patent CN222065473U discloses a mud separation device for cast-in-place pile construction. This structure incorporates a dispersing mechanism, where a second motor drives the mounting rod and dispersing blades to rotate together. This dispersing blades disperse agglomerates in the mud, improving the dispersing efficiency. Furthermore, by adding protrusions to the dispersing blades, the contact area and friction between the blades and the mud are increased, further enhancing the dispersing effect. It can also scrape off mud adhering to the inner surface of the dispersing seat, reducing the difficulty of cleaning the mud inside the dispersing seat. The mud separation mechanism can separate the dispersed mud, allowing for the separate recycling of sand and gravel. The mud separation mechanism, through a first motor, support shaft, eccentric block, and linkage rod, causes the separation screen plate to swing back and forth, improving the mud separation efficiency.

[0005] However, in actual use, this structure only uses the up-and-down shaking of the separating screen plate for screening. The simple up-and-down shaking is not enough to form a good stratification of materials of different particle sizes in the mud, which is not conducive to more fine screening according to particle size. As a result, the separation of sand and mud is not thorough enough, which affects the quality of classification and recycling. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a mud separation device for cast-in-place pile construction.

[0007] This utility model is achieved through the following technical solution: a mud separation device for cast-in-place pile construction, including a separation box, a mixing cylinder is provided through the top of the separation box, a feeding hopper is provided through the top of the mixing cylinder, and a separation mechanism is provided inside the separation box;

[0008] The separation mechanism includes a fixed plate fixedly installed inside the separation box, a spring fixedly installed on the top of the fixed plate, a guide frame fixedly installed at one end of the spring, an inclined screening plate fixedly installed on the top of the guide frame, a first motor fixedly installed at the bottom of the separation box, a rotating shaft fixedly installed at the output end of the first motor, a rotating screen cylinder fixedly installed at one end of the rotating shaft, a fixed cylinder cover fixedly installed inside the separation box, and a sealing plug threadedly connected to the surface of the rotating screen cylinder.

[0009] As can be seen, in the above technical solution, the inclined screening plate and the rotating screen cylinder work together to first screen out large particles of impurities and then finely separate small particles, thereby improving the mud separation effect. The sealing plug adopts a threaded connection, which facilitates the cleaning of impurities inside the rotating screen cylinder and ensures continuous and efficient separation.

[0010] Optionally, in a possible embodiment of a slurry separation device for cast-in-place pile construction, the fixed sleeve is fitted over the outside of the rotating mesh cylinder, one end of the sealing plug is threadedly connected to a threaded handle, a drain pipe is provided through the bottom of the separation box, a solenoid valve is fixedly installed on one side of the drain pipe, a vibration motor is installed at the bottom of the guide frame, a discharge frame is provided through the side of the separation box, and an insert plate is inserted into the inside of the discharge frame.

[0011] As can be seen, in the above technical solution, the fixed cylinder provides protection and guides the rotating mesh cylinder, which is conducive to the separation work. The drain pipe and solenoid valve facilitate the control of liquid discharge and make the operation flexible.

[0012] Optionally, in a possible embodiment of a mud separation device for cast-in-place pile construction, a mixing mechanism is provided inside the mixing drum. The mixing mechanism includes a second motor fixedly mounted on the top of the mixing drum, a movable shaft fixedly mounted on the output end of the second motor, a plurality of support rods fixedly mounted on the surface of the movable shaft, a scraper fixedly mounted between each of the plurality of support rods, and two mixing rods fixedly mounted on one side of the scraper.

[0013] As can be seen, in the above technical solution, the scraper can prevent the mud from clumping, so that the mud is initially mixed evenly in the mixing drum, and the stirring rod further enhances the mixing effect, ensuring that the various components of the mud are fully mixed, laying a good foundation for the subsequent separation process, and effectively improving the overall mud separation efficiency and quality.

[0014] Optionally, in a possible embodiment of a mud separation device for cast-in-place pile construction, a rotating cylinder is fitted on the surface of each of the two stirring rods, and multiple stirring rods are fixedly installed on the surface of each rotating cylinder. Multiple electric telescopic rods are fixedly installed at the bottom of the separation box, and universal wheels are fixedly installed at the bottom of each of the multiple electric telescopic rods.

[0015] It can be seen that the above technical solution allows the various components of the mud to be mixed more thoroughly and evenly, which is conducive to more efficient and precise subsequent separation. The electric telescopic rod and the universal wheels enable the device to move flexibly and adjust its height as needed in different construction sites, thus enhancing the overall practicality and adaptability of the device.

[0016] The beneficial effects of this utility model are:

[0017] By setting up a separation mechanism, compared with the existing technology, the combination of vibrating screening of inclined screening plates and centrifugal screening of rotating screen cylinders first removes larger particle impurities and then separates smaller solid particles, realizing multi-stage fine separation of mud, effectively improving the purity of mud, which is beneficial to subsequent processing and utilization. Moreover, the discharge frame insert plate can be inserted and removed as needed to control the discharge of impurities, the solenoid valve of the discharge pipe can conveniently regulate the liquid discharge, and the sealing plug can be easily cleaned of impurities inside the rotating screen cylinder with the help of threaded handle. The overall operation is simple and easy to learn.

[0018] By incorporating a mixing mechanism, compared to existing technologies, the second motor drives relevant components after the slurry enters the mixing drum. The scraper, mixing rod, rotating drum, and mixing bar rotate in tandem, not only ensuring initial and uniform mixing of the slurry to prevent clumping, but also further ensuring the full integration of all components. This lays a solid foundation for subsequent separation processes, improving separation efficiency and quality, and making slurry treatment more precise and efficient. Furthermore, the directional casters allow for easy movement of the separation box to new locations, meeting the needs of different construction areas. Once in place, the height of the separation box can be adjusted using an electric telescopic rod, facilitating adaptation to site conditions and enhancing the flexibility and adaptability of the device on the construction site, making overall use more convenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the separation mechanism of this utility model.

[0021] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the stirring mechanism of this utility model.

[0023] Figure 5 This is a schematic diagram of the overall front cross-sectional structure of this utility model.

[0024] Figure label explanation

[0025] 1. Separation box; 2. Mixing drum; 3. Feed hopper; 4. Spring; 5. Guide frame; 6. Inclined screen plate; 7. First motor; 8. Rotating shaft; 9. Rotating screen cylinder; 10. Fixed cylinder cover; 11. Sealing plug; 12. Threaded handle; 13. Drain pipe; 14. Vibrating motor; 15. Discharge frame; 16. Insert plate; 17. Second motor; 18. Movable shaft; 19. Support rod; 20. Scraper; 21. Mixing rod; 22. Rotating drum; 23. Stirring bar; 24. Electric telescopic rod; 25. Casters. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model 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. Therefore, they should not be construed as limitations on the utility model.

[0028] Example 1

[0029] like Figure 1-5 As shown, this embodiment provides a mud separation device for cast-in-place pile construction, including a separation box 1, a mixing drum 2 is provided through the top of the separation box 1, a feeding hopper 3 is provided through the top of the mixing drum 2, and a separation mechanism is provided inside the separation box 1.

[0030] The separation mechanism includes a fixed plate fixedly installed inside the separation box 1. A spring 4 is fixedly installed on the top of the fixed plate. A guide frame 5 is fixedly installed at one end of the spring 4. An inclined screening plate 6 is fixedly installed on the top of the guide frame 5. A first motor 7 is fixedly installed at the bottom of the separation box 1. A rotating shaft 8 is fixedly installed at the output end of the first motor 7. A rotating screen cylinder 9 is fixedly installed at one end of the rotating shaft 8. A fixed sleeve 10 is fixedly installed inside the separation box 1. A sealing plug 11 is threadedly connected to the surface of the rotating screen cylinder 9. The fixed sleeve 10 is fitted over the outside of the rotating screen cylinder 9. A threaded handle 12 is threadedly connected to one end of the sealing plug 11. A drain pipe 13 is provided through the bottom of the separation box 1. A solenoid valve is fixedly installed on one side of the drain pipe 13. A vibration motor 14 is installed at the bottom of the guide frame 5. A discharge frame 15 is provided through the side of the separation box 1. An insert plate 16 is inserted into the inside of the discharge frame 15.

[0031] As can be seen, in the above technical solution, the slurry enters the mixing drum 2 through the feed hopper 3. The mixing drum 2 acts as a buffer and collection device, ensuring that the slurry enters the separation box 1 evenly and smoothly. After entering the separation box 1, the slurry falls onto the inclined screen plate 6. At this time, the vibration motor 14 on one side of the separation box 1 works, driving the guide frame 5 to vibrate. The guide frame 5 drives the inclined screen plate 6 to vibrate, and the irregular movement of the slurry deforms the spring 4. Larger solid impurities move along the inclined surface towards the discharge frame 15. Inserting and removing the insert plate 16 can control the discharge of impurities. The slurry, after preliminary screening, flows through the guide frame 5 to the rotating screen cylinder 9, which is located at the separation point. The first motor 7 at the bottom of the box 1 drives the rotating shaft 8 to rotate the rotating screen cylinder 9 at high speed. Under the action of centrifugal force, relatively small solid particles and impurities are thrown towards its inner wall, and pure mud liquid seeps out through the mesh. As it is used, the impurities on the inner wall of the rotating screen cylinder 9 increase. The threaded handle 12 of the rotatable sealing plug 11 is unscrewed to discharge the impurities, ensuring subsequent screening. Finally, the seeping mud liquid is collected at the bottom of the separation box 1. The liquid is discharged to the subsequent stage by controlling the opening of the solenoid valve on one side of the drain pipe 13. This achieves multi-stage separation of the grouting pile construction mud, ensuring the rational treatment and resource utilization of the mud.

[0032] Usage process: The mud generated during the construction of the cast-in-place piles is fed into the mixing drum 2 through the feed hopper 3. The mixing drum 2 can play a preliminary buffering and collection role for the mud that has just entered the device, so that the mud can enter the separation box 1 below more evenly and stably, preparing for the subsequent separation process.

[0033] After the slurry flows from the mixing drum 2 into the separation box 1, it first falls onto the inclined screen plate 6. At this time, the vibrating motor 14 on one side of the separation box 1 starts to work, driving the inclined screen plate 6 to vibrate. Under the high-frequency vibration of the vibrating motor 14, the slurry moves irregularly on the inclined screen plate 6, causing the spring 4 to deform. Since the inclined screen plate 6 itself has a certain inclination angle, under the dual action of vibration and gravity, larger solid impurities in the slurry will gradually move to one side along the inclined surface of the inclined screen plate 6, and finally be discharged from the separation box 1 through the discharge frame 15. The insert plate 16 inserted in the discharge frame 15 can be inserted and removed according to the actual situation. When it is necessary to discharge solid impurities, the insert plate 16 can be pulled out to facilitate the smooth flow of impurities; when it is not necessary to discharge, the insert plate 16 acts as a block to prevent impurities from flowing out accidentally.

[0034] After initial screening by the inclined screening plate 6, the slurry flows into the guide frame 5 and flows along the guide frame 5 to the position of the rotating screen cylinder 9. At this time, the first motor 7 located at the bottom of the separation box 1 starts to run, driving the rotating shaft 8 to rotate, which in turn causes the rotating screen cylinder 9 to start rotating at high speed. The surface of the rotating screen cylinder 9 is provided with mesh holes of appropriate aperture. During the rotation process, under the action of centrifugal force, the relatively small solid particles and impurities in the slurry will be thrown to the inner wall of the rotating screen cylinder 9, while the relatively pure slurry liquid will seep out through the mesh holes.

[0035] As the separation process continues, the solid impurities accumulated on the inner wall of the rotating screen cylinder 9 will gradually increase. When cleaning is required, the sealing plug 11 can be unscrewed from the rotating screen cylinder 9 by rotating the threaded handle 12 at one end of the sealing plug 11. At this time, the solid impurities can be discharged from the rotating screen cylinder 9, completing the cleaning of the inside of the rotating screen cylinder 9 and ensuring that it can continue to perform screening work effectively. The sealing plug 11 and the rotating screen cylinder 9 are connected by threads, which can not only ensure the sealing during normal operation and prevent mud leakage, but also facilitate disassembly when cleaning is required.

[0036] After being screened by the rotating screen cylinder 9, the relatively pure mud liquid that seeps out will flow into the space between the fixed cylinder shroud 10 and the separation box 1, and eventually collect at the bottom of the separation box 1. When it is necessary to discharge this liquid, the solenoid valve on one side of the drain pipe 13 can be opened, and the liquid will be discharged from the separation box 1 along the drain pipe 13. The discharged liquid can be transported to the subsequent processing stage according to actual needs.

[0037] Example 2

[0038] like Figure 3-5 As shown, this embodiment provides a mud separation device for cast-in-place pile construction. The mixing drum 2 is equipped with a mixing mechanism, which includes a second motor 17 fixedly installed at the top of the mixing drum. A movable shaft 18 is fixedly installed at the output end of the second motor 17. Multiple support rods 19 are fixedly installed on the surface of the movable shaft 18. Scrapers 20 are fixedly installed between the multiple support rods 19. Two mixing rods 21 are fixedly installed on one side of the scraper 20. A rotating drum 22 is sleeved on the surface of the two mixing rods 21. Multiple mixing rods 23 are fixedly installed on the surface of the rotating drum 22. Multiple electric telescopic rods 24 are fixedly installed at the bottom of the separation box 1. Universal wheels 25 are fixedly installed at the bottom of the multiple electric telescopic rods 24.

[0039] As can be seen from the above technical solution, when the mud enters the mixing drum 2, the second motor 17 fixed at its top starts, driving the movable shaft 18 to rotate, causing the support rod 19 to rotate synchronously. The scraper 20 in between stirs the mud, initially mixing it evenly to avoid clumping. At the same time, the stirring rod 21, the rotating drum 22, and the stirring rod 23 rotate together to enhance the stirring effect. After ensuring that the components are fully mixed, the mud flows from the bottom of the mixing drum 2 into the separation box 1. In the separation box 1, the mud is sequentially separated through multiple stages of vibration screening by the inclined screening plate 6 and centrifugal screening by the rotating screen cylinder 9. After removing impurities, the liquid is collected at the bottom of the box and discharged to the subsequent stage as needed. If the device needs to be moved, the separation box 1 is pushed, and with the help of multiple electric telescopic rods 24 and universal wheels 25 at the bottom, it is moved to the designated position by the steering of the universal wheels 25. After it is in place, the electric telescopic rods 24 are activated to adjust the height of the separation box 1 for easy use and placement.

[0040] Usage process: At the same time, when the mud enters the mixing drum 2, the second motor 17 fixedly installed at the top of the mixing drum 2 starts to work. The second motor 17 drives the movable shaft 18 at its output end to rotate. The multiple support rods 19 fixed on the movable shaft 18 also rotate synchronously. The scraper 20 fixed between the support rods 19 stirs the mud in the mixing drum 2 during the rotation, so that the mud is initially mixed evenly in the mixing drum 2, avoiding uneven phenomena such as lumps in the mud.

[0041] At the same time, the two stirring rods 21 fixed on one side of the scraper 20, as well as the rotating drum 22 sleeved on the stirring rods 21 and the multiple stirring rods 23 on the surface of the rotating drum 22, also rotate together, further enhancing the stirring effect on the mud and ensuring that the various components of the mud can be fully mixed, preparing for a more efficient separation process in the future. The mud after being fully stirred will flow from the bottom opening of the stirring drum 2 into the separation box 1 below.

[0042] When it is necessary to move the device, push the separation box 1 to move the multiple electric telescopic rods 24 and casters 25 fixed at the bottom. Utilize the steerability of the casters 25 to easily move the device to the designated new position. After moving to the position, start the electric telescopic rods 24 to adjust the height of the separation box 1.

[0043] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" 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 direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A mud separation device for cast-in-place pile construction, characterized in that, Including the separation tank (1), the top of the separation tank (1) is provided with a stirring drum (2), the top of the stirring drum (2) is provided with a feeding hopper (3), and the inside of the separation tank (1) is provided with a separation mechanism; The separation mechanism comprises a fixed plate fixedly arranged in the separation tank (1), a spring (4) fixedly arranged on the top of the fixed plate, a flow guide frame (5) fixedly arranged at one end of the spring (4), an inclined screening plate (6) fixedly arranged on the top of the flow guide frame (5), a first motor (7) fixedly arranged at the bottom of the separation tank (1), a rotating shaft (8) fixedly arranged at the output end of the first motor (7), a rotating mesh cylinder (9) fixedly arranged at one end of the rotating shaft (8), and a fixed cylinder cover (10) fixedly arranged in the separation tank (1). The surface of the rotating mesh cylinder (9) is threadedly connected with a sealing plug (11).

2. The construction slurry separating device for cast-in-place piles according to claim 1, characterized in that, The fixed cylinder cover (10) is arranged outside the rotating mesh cylinder (9), one end of the sealing plug (11) is threadedly connected with a threaded handle (12), the bottom of the separation tank (1) is provided with a drain pipe (13), and one side of the drain pipe (13) is fixedly provided with a solenoid valve.

3. The construction slurry separating device for cast-in-place piles according to claim 1, characterized in that, The bottom of the flow guide frame (5) is provided with a vibration motor (14), one side of the separation tank (1) is provided with a discharging frame (15), and the inside of the discharging frame (15) is provided with a plug-in plate (16).

4. The construction slurry separating device for cast-in-place piles according to claim 1, characterized in that, The inside of the stirring drum (2) is provided with a stirring mechanism, the stirring mechanism comprises a second motor (17) fixedly arranged on the top of the stirring drum, an output end of the second motor (17) is fixedly provided with a movable shaft (18), and the surface of the movable shaft (18) is fixedly provided with a plurality of supporting rods (19).

5. The construction slurry separating device for cast-in-place piles according to claim 1, characterized in that, A plurality of scraping plates (20) are fixedly arranged between the supporting rods (19), and two stirring rods (21) are fixedly arranged on one side of the scraping plate (20).

6. The construction slurry separating device for cast-in-place piles according to claim 1, characterized in that, The surface of the two stirring rods (21) is sleeved with a rotating drum (22), and the surface of the rotating drum (22) is fixedly provided with a plurality of stirring rods (23).

7. The construction slurry separating device for cast-in-place pile according to claim 1, wherein A plurality of electric telescopic rods (24) are fixedly arranged at the bottom of the separation tank (1), and universal wheels (25) are fixedly arranged at the bottom of the electric telescopic rods (24).

Citation Information

Patent Citations

  • Cast-in-place pile construction slurry separation device

    CN222065473U