A concrete pipe pile residual slurry recycling assembly and recycling method

Abstract

The application relates to the technical field of concrete pipe pile residual slurry recovery, in particular to a concrete pipe pile residual slurry recycling assembly and recycling method, which comprises multiple flow guide frames, two adjacent flow guide frames are connected through a connecting frame, the connecting frame is in a 'Fang' character-shaped plate structure, two baffle plates are fixed to the inner side of the connecting frame, multiple studs are inserted into the surfaces of the two baffle plates, one end of the stud is fixed to the end of the flow guide frame, and a nut is screwed on the other end of the stud; a mounting frame is inserted between the two baffle plates, and a sieve plate is fixed to the inner ring opening of the mounting frame; the beneficial effects are that: the modularly-spliced flow guide frame, the connecting frame, the detachable filtering mounting frame and the multiple locking and sealing structures are arranged, the flow guide and conveying structure is flexibly spliced and assembled according to the production site working conditions, the equipment installation and the later operation and maintenance cost are effectively reduced, the double elastic sealing structure formed by the sealing gasket one and the sealing gasket two arranged on the inner side of the connecting frame can realize all-around plugging of the structure splicing gaps.

Description

Technical Field

[0001] This invention relates to the field of residual slurry recycling technology for concrete pipe piles, specifically to a component and method for recycling residual slurry from concrete pipe piles. Background Technology

[0002] In the industrial production of concrete pipe piles, after the pipe piles undergo centrifugal molding, a large amount of cement-based residual slurry is generated inside the pile core. This residual slurry contains effective components such as cement, fine aggregate, and mixing water, and has high recycling value. Currently, domestic pipe pile manufacturers generally use simple diversion channels and fixed filter screen structures to collect and filter the residual slurry. However, existing recycling diversion structures have many defects and shortcomings in actual use. First, traditional diversion structures are mostly integral fixed welded structures, which cannot achieve modular splicing and assembly. It is difficult to flexibly adapt the installation according to the size of the production line station and the distance of residual slurry transportation. Disassembly, repair, replacement, and maintenance are difficult, and the later operation and maintenance costs are high. Second, the existing sealing structure at the diversion docking position is simple, mostly relying on a single rubber gasket for sealing. Long-term slurry erosion and slight equipment vibration can easily cause gaps and loosening, which can easily lead to residual slurry leakage and cross-contamination. This not only wastes slurry resources but also pollutes the production site environment and increases the workload of on-site cleaning.

[0003] Meanwhile, traditional filtration structures mostly use fixed-pore-size filter screens without auxiliary anti-clogging structures. Agglomerated concrete and coarse and fine sand mixed in the residual slurry easily clog the filter screen pores, requiring frequent manual shutdowns for cleaning. This severely affects the continuity of residual slurry recovery operations and significantly reduces recovery efficiency. Furthermore, fixed filter screens cannot adapt to the filtration needs of residual slurry with different concentrations and impurity particle sizes, resulting in poor equipment adaptability. In addition, the existing filter installation structure uses a single positioning and locking method, which is prone to loosening and displacement under long-term slurry scouring and equipment vibration conditions, leading to poor structural stability and making it difficult to meet the continuous and large-scale residual slurry recovery operation requirements of pipe pile production lines. Summary of the Invention

[0004] The purpose of this invention is to provide a component and method for recycling residual slurry from concrete pipe piles, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objective, the present invention provides the following technical solution: a concrete pipe pile residual slurry recycling assembly, comprising a plurality of flow guide frames, two adjacent flow guide frames are connected by a connecting frame, the connecting frame is in a "C"-shaped plate-like structure, two baffles are fixed on the inner side of the connecting frame, a plurality of studs are inserted through the surfaces of both baffles, one end of each stud is fixed at the end of the flow guide frame, and the other end of the stud is screwed with a nut; a mounting frame is inserted between the two baffles, a sieve plate is fixed at the inner ring opening of the mounting frame, connecting plates are mounted at both ends of the top surface of the mounting frame, elastic metal hanging pieces are fixed at the bottoms of the connecting plates, the bottom ends of the elastic metal hanging pieces are inserted into the outer wall of the connecting frame, and a vibration motor is mounted on the top of the mounting frame.

[0006] Preferably, the baffle is in an "L"-shaped plate-like structure, a first sealing gasket is fixed on the side of the baffle close to the flow guide frame, the first sealing gasket is in a "C"-shaped plate-like structure, a round hole is opened on the surface of the first sealing gasket, a plurality of preformed holes are opened on the side of the two parallel distributed side plates of the baffle close to the flow guide frame, the preformed holes are "convex"-shaped round holes, the preformed holes correspond to the round holes, the studs pass through the round holes and then are inserted into the preformed holes, the rod length of each stud is equal to the depth of the preformed hole, and the first sealing gasket is clamped between the flow guide frame and the baffle to generate elastic deformation.

[0007] Preferably, two second sealing gaskets are fixed on the inner side of the connecting frame, the second sealing gaskets are in a "C"-shaped plate-like structure, the two baffles are located between the two second sealing gaskets, and the second sealing gaskets are clamped between the flow guide frame and the connecting frame to generate elastic deformation.

[0008] Preferably, the mounting frame is in an annular plate-like structure, and after the mounting frame is inserted between the two baffles, it covers the plurality of preformed holes on the surface of the baffles.

[0009] Preferably, the connecting plate is in an "L"-shaped plate-like structure, a convex block is fixed at one end of the connecting plate, a through hole is opened on the surface of the convex block, a first anti-loosening screw is inserted into the through hole, and the bottom end of the first anti-loosening screw is screwed on the top surface of the mounting frame.

[0010] Preferably, a through hole is opened on one side of the bottom plate body of the connecting plate, the through hole is a "convex"-shaped round hole, a second anti-loosening screw is inserted inside the through hole, and one end of the second anti-loosening screw is screwed on the surface of the connecting frame.

[0011] Preferably, clamping grooves are opened on the tops of the two parallel distributed side plates of the connecting frame, the elastic metal hanging piece is in an "L"-shaped plate-like structure, the bottom plate body of the elastic metal hanging piece is a right-angled trapezoidal strip, the inclined surface of the right-angled trapezoidal strip faces downward, and the right-angled trapezoidal strip is inserted into the clamping groove.

[0012] Preferably, a notch is opened on the top surface of the mounting frame, a bracket is inserted into the notch and welded, and the vibration motor is fixed in the bracket.

[0013] A method for recovering residual grout from concrete pipe piles includes the following steps: After the pipe pile is centrifugally formed, the pile core discharges the cement-based residual slurry. The slurry is transported and collected through the guide frame 1 and then stored, homogenized and prevented from coking. The slurry is then pumped to the concentration detection and control equipment for concentration control. Finally, it is transported back to the mixing plant in a closed loop to replace the mixing water and reduce solid waste discharge.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The present invention proposes a concrete pipe pile residual slurry recycling component and method. By setting up a modularly spliced ​​flow guide frame, connecting frame, detachable filter mounting frame, and multiple locking and sealing structures, compared with existing technologies, it can flexibly assemble and disassemble the flow guide and conveying structure according to the production site conditions. This facilitates easy assembly and disassembly, and convenient maintenance, effectively reducing equipment installation and subsequent operation and maintenance costs. The double elastic sealing structure formed by sealing gasket one and sealing gasket two on the inner side of the connecting frame can completely seal the structural splicing gaps, thoroughly solving the problems of slurry leakage and cross-contamination in traditional equipment, and significantly improving the residual slurry recycling rate. Simultaneously, the detachable mounting frame, which allows for the replacement of screen plates with different aperture sizes, can adapt to different concentrations of slurry. The equipment's adaptability and practicality are significantly improved for filtering residual slurry from pipe piles with different impurity particle sizes. The combination of a pre-positioning elastic metal hanger and a locking structure with double anti-loosening screws enables rapid and precise assembly of the mounting frame, effectively preventing structural loosening and detachment under long-term vibration conditions and ensuring equipment operational stability. Furthermore, the addition of a vibration motor drives the guide frame and screen plate to continuously vibrate micro-vibrate, accelerating the gravity flow of residual slurry, preventing slurry accumulation and retention, and effectively preventing screen plate mesh blockage. This eliminates the need for frequent manual shutdowns for cleaning, ensuring continuous and stable residual slurry filtration and recycling operations. This greatly improves the efficiency of residual slurry recycling pretreatment for pipe piles, reduces solid waste emissions, and aligns with the needs of green industrial production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Sectional view of the structure at point AA; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point C; Figure 4 for Figure 1 Structural cross-section view at point BB; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point D; Figure 6 This is a schematic diagram of the connection structure between the connecting frame and the mounting frame of the present invention; Figure 7 This is a schematic diagram of the connecting frame structure of the present invention; Figure 8 is Figure 7 a schematic enlarged view of the structure at position E; Figure 9 a schematic diagram of the connection structure between the mounting frame and the sieve plate of the present invention.

[0016] In the figures: flow guide frame 1, stud 101, nut 102, connecting frame 2, baffle 201, first sealing gasket 202, second sealing gasket 203, preformed hole 204, clamping groove 205, mounting frame 3, sieve plate 301, notch 302, bracket 303, vibration motor 304, connecting plate 4, protruding block 401, through hole 402, first anti-loose screw 403, through hole 404, second anti-loose screw 405, elastic metal hanging piece 406. DETAILED DESCRIPTION

[0017] To clearly and completely describe the objects and technical solutions of the present invention, and to make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of, but not all of, the embodiments of the present invention, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0018] Referring to Figures 1 to 9 , the present invention provides a technical solution: a concrete pipe pile residual slurry recycling assembly, which adopts a modular splicing structure as a whole, and is mainly composed of a plurality of sets of flow guide frames 1, connecting frames 2 for butting adjacent flow guide frames 1, a detachable filtering mounting frame 3 and a locking and positioning assembly. The assembly can realize stable flow guidance, high-efficiency filtration and leak-proof conveying of pipe pile residual slurry, and meanwhile has the application advantages of convenient disassembly and assembly, anti-loosening and anti-clogging, and suitability for screening under multiple working conditions, and is suitable for the residual slurry recovery and pre-treatment operation in the production process of concrete pipe piles.

[0019] In the specific assembly structure, the equipment is provided with a plurality of flow guide frames 1, and two adjacent flow guide frames 1 are spliced and fixed through the connecting frame 2. The connecting frame 2 adopts an integrated plate-shaped structure in a "U" shape, which has high overall structural strength and good bearing stability, and can stably undertake the butt transition operation of the two sections of flow guide frames 1. Two symmetrically distributed baffles 201 are fixedly installed on the inner side wall of the connecting frame 2. The baffles 201 adopt an L-shaped plate structure, which can limit and wrap the butt end of the flow guide frame 1 to ensure the accuracy of the butt position. A plurality of studs 101 are inserted and installed on the surface of each baffle 201. One end of all the studs 101 is fixedly welded to the end side wall of the flow guide frame 1, and the other end penetrates through the structure of the baffle 201 and is in threaded connection with a matching nut 102. Through the threaded locking cooperation of the studs 101 and the nuts 102, the rigid fixed connection between the flow guide frame 1, the connecting frame 2 and the baffle 201 is realized.

[0020] To completely seal the butt joint gap between the flow guide frame 1 and the baffle 201 and avoid leakage and grout overflow problems during the residual grout conveying process, a first sealing gasket 202 is fixedly attached and mounted on the side of the baffle 201 close to the flow guide frame 1. The first sealing gasket 202 also adopts a "-shaped plate-like structure adapted to the baffle 201, which can wrap the butt joint gap in all directions. The plate body surface of the first sealing gasket 202 is provided with through circular holes at positions corresponding to the studs 101. Meanwhile, a plurality of convex-shaped preformed holes 204 are opened on the side of the two parallel distributed side plates of the baffle 201 close to the flow guide frame 1, and the preformed holes 204 are in one-to-one correspondence and coaxially communicated with the circular holes of the first sealing gasket 202. During actual assembly, the studs 101 pass through the circular holes of the first sealing gasket 202 and are accurately inserted into the preformed holes 204, and the rod length of the studs 101 completely matches the depth of the preformed holes 204, which can realize the embedded positioning and installation of the studs 101 and prevent the exposed studs 101 from affecting the flatness of the overall structure. After the nut 102 is locked, the end of the flow guide frame 1 tightly presses the first sealing gasket 202, causing the first sealing gasket 202 to elastically deform and fully fill the tiny gap between the flow guide frame 1 and the baffle 201, which greatly improves the sealing and anti-seepage performance of the butt joint position.

[0021] At the same time, two symmetrically arranged second sealing gaskets 203 are fixedly mounted on the inner side of the connecting frame 2. The second sealing gaskets 203 are also of a "-shaped plate-like structure. The two baffles 201 are correspondingly arranged in the area between the two second sealing gaskets 203, and the second sealing gaskets 203 are clamped between the end of the flow guide frame 1 and the inner side wall of the connecting frame 2. After the flow guide frame 1 and the connecting frame 2 are locked and fixed, the second sealing gaskets 203 are synchronously compressed to elastically deform, forming a double sealing structure together with the first sealing gasket 202, which seals the splicing gaps in all radial and axial directions, completely eliminates the phenomena of residual grout leakage and grout channeling, ensures the closed conveying operation of residual grout, effectively reduces the residual grout loss, and improves the recovery and utilization rate.

[0022] A regular installation cavity is formed between two symmetrically arranged baffles 201. A mounting frame 3 is detachably inserted into the cavity. The mounting frame 3 adopts a ring-shaped plate structure. After assembly, it completely covers all the reserved holes 204 on the surface of the baffles 201, sealing and protecting the reserved holes 204 to prevent residual slurry, sand, and gravel impurities from entering and causing blockages, thus ensuring smooth disassembly and maintenance of the structure. A screen plate 301 is fixedly embedded in the inner ring port of the mounting frame 3. As a core filtering component, the screen plate 301 can screen and filter the residual slurry from the pipe piles conveyed inside the guide frame 1, effectively intercepting lumpy concrete, coarse aggregate, and solid impurities mixed in the residual slurry. The filtered pure slurry can enter the subsequent recycling process, preventing impurities from clogging subsequent conveying pipelines and equipment from the source. This equipment can be equipped with multiple sets of mounting frames 3. The screen plates 301 with different aperture specifications are mounted on the inner side of different mounting frames 3. The staff can flexibly select the screen plates 301 with corresponding aperture according to the residual slurry concentration, impurity particle size and production process requirements, which greatly improves the adaptability and practicality of the equipment.

[0023] To achieve rapid positioning and secure fixing of the mounting bracket 3, connecting plates 4 are fixedly installed at both ends of the top surface of the mounting bracket 3. The connecting plates 4 adopt an "L"-shaped plate structure to achieve multi-dimensional fitting and positioning. A protrusion 401 is fixedly provided at the horizontal end of the connecting plate 4. A through hole 402 is opened in the center of the plate body of the protrusion 401. An anti-loosening screw 403 is inserted and installed inside the through hole 402. The bottom end of the anti-loosening screw 403 is screwed and fixed inside the pre-set screw hole on the top surface of the mounting bracket 3. The connecting plate 4 and the mounting bracket 3 are initially locked and fixed by the anti-loosening screw 403. To further improve the structural stability, the protrusion 401 can be welded to the top surface of the mounting bracket 3 for reinforcement to prevent the connecting plate 4 from loosening or shifting. Meanwhile, a convex through hole 404 is provided on one side of the bottom plate of the connecting plate 4. An anti-loosening screw 405 is inserted into the through hole 404. The end of the anti-loosening screw 405 is screwed and fixed to the surface of the pre-set screw hole of the connecting frame 2. The rigid connection between the connecting plate 4 and the connecting frame 2 is achieved through the anti-loosening screw 405, thus completing the overall locking and fixing of the mounting frame 3 and the connecting frame 2.

[0024] A flexible metal hanger 406 is fixedly mounted on the bottom of the connecting plate 4. The flexible metal hanger 406 is an L-shaped plate structure, with its bottom extension being a right-angled trapezoidal strip, and the inclined surface of the right-angled trapezoid facing downwards. Correspondingly, the top of the two parallel side plates of the connecting frame 2 are provided with slots 205. During assembly, the right-angled trapezoidal strip structure of the flexible metal hanger 406 can be accurately inserted into the slot 205. The inclined guide structure reduces the difficulty of insertion and achieves quick snap-fit ​​positioning. Through the elastic snap-fit ​​cooperation between the flexible metal hanger 406 and the slot 205, the mounting frame 3 can be pre-positioned before the screw is tightened, effectively preventing the mounting frame 3 from shifting or falling off during assembly. At the same time, the elastic snap-fit ​​structure has a certain buffering performance, which can adapt to subsequent vibration operation conditions and improve the stability of the structure.

[0025] A vibration motor 304 is fixedly installed at the top center of the mounting frame 3, providing continuous vibration power for the entire filter guide structure. During equipment operation, the vibration motor 304 generates high-frequency micro-vibrations when powered on. On the one hand, it drives the entire guide frame 1 to vibrate, accelerating the downward flow of residual slurry inside, preventing slurry from accumulating or stagnating inside the guide frame 1, and improving the efficiency of residual slurry recovery and transportation. On the other hand, it drives the screen plate 301 to vibrate continuously, effectively preventing fine sand and slurry clumps from clogging the mesh of the screen plate 301, ensuring that the screen plate 301 maintains good filtration permeability, eliminating the need for frequent manual cleaning, significantly reducing equipment maintenance costs, and ensuring continuous and stable residual slurry filtration operations.

[0026] The overall assembly process of this equipment is simple and efficient. During actual assembly, the adjacent guide frames 1 are first connected and fixed. The end of a single guide frame 1 is embedded into the port of the connecting frame 2, ensuring the stud 101 at the end of the guide frame 1 is precisely aligned with the pre-drilled hole 204 on the surface of the baffle 201. After passing through the round hole of the sealing gasket 1 202, it is inserted into the pre-drilled hole 204. Subsequently, a washer and nut 102 are sequentially fitted onto the end of the stud 101 and tightened. To further improve the anti-loosening performance of the threaded connection, a special stud 101 with a pin hole at the end can be used. After the nut 102 is tightened, a spring pin is inserted into the pin hole. This mechanical limiting structure completely prevents the nut 102 from loosening or falling off under long-term vibration, ensuring the reliability of the structural connection. After the guide frame 1 is tightened, the end of the guide frame compresses the sealing gasket 1 202 and the sealing gasket 2 203, causing elastic deformation and forming a double-sealing protection structure to prevent slurry leakage.

[0027] After the single-sided guide frame 1 is fixed, another set of guide frames 1 is fixed to the other end of the connecting frame 2 according to the same assembly steps. The two sections of guide frames 1 are seamlessly spliced ​​through the connecting frame 2 to form a complete residual slurry guiding channel. Then, the selected mounting frame 3 with the appropriate aperture is vertically inserted into the installation cavity between the two baffles 201. The mounting frame 3 covers and seals the reserved hole 204. Then, the elastic metal hanging piece 406 at the bottom of the connecting plate 4 is engaged with the slot 205 to achieve pre-fixation. Finally, double locking is completed by anti-loosening screw 1 403 and anti-loosening screw 2 405 to completely fix the installation position of the mounting frame 3 and complete the assembly of the entire set of equipment. The whole structure is easy to disassemble and assemble, has excellent sealing performance, and good anti-clogging and anti-loosening effects. It can stably complete the filtration and recycling of residual slurry of concrete pipe piles for a long time, effectively improve the residual slurry recycling rate, reduce the emission of solid waste from production, and meet the needs of continuous industrial production of pipe piles.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete pipe pile residual slurry recycling component, comprising multiple guide frames (1), with adjacent guide frames (1) connected by a connecting frame (2), characterized in that: The connecting frame (2) has a "C"-shaped plate-like structure, two baffles (201) are fixed on the inner side of the connecting frame (2), a plurality of studs (101) are inserted through the surface of each of the two baffles (201), one end of each stud (101) is fixed to the end of the flow guide frame (1), and the other end of each stud (101) is screwed with a nut (102); a mounting frame (3) is inserted between the two baffles (201), a sieve plate (301) is fixed at the inner annular opening of the mounting frame (3), connecting plates (4) are mounted at both ends of the top surface of the mounting frame (3), elastic metal hanging pieces (406) are fixed at the bottom of the connecting plates (4), the bottom ends of the elastic metal hanging pieces (406) are inserted into the outer wall of the connecting frame (2), and a vibration motor (304) is mounted on the top of the mounting frame (3).

2. The concrete pipe pile residual slurry recycling component according to claim 1, characterized in that: The baffle (201) has an "L"-shaped plate-like structure, a first sealing gasket (202) is fixed on the side of the baffle (201) close to the flow guide frame (1), the first sealing gasket (202) has a "C"-shaped plate-like structure, round holes are opened on the surface of the first sealing gasket (202), a plurality of preformed holes (204) are opened on the side, close to the flow guide frame (1), of each of the two parallel distributed side plates of the baffle (201), the preformed holes (204) are "convex"-shaped round holes, the preformed holes (204) correspond to the round holes, the studs (101) pass through the round holes and then are inserted into the preformed holes (204), the rod length of each stud (101) is equal to the depth of the preformed hole (204), and the first sealing gasket (202) clamped between the flow guide frame (1) and the baffle (201) is elastically deformed.

3. The concrete pipe pile residual slurry recycling component according to claim 2, characterized in that: Two second sealing gaskets (203) are fixed on the inner side of the connecting frame (2), the second sealing gaskets (203) have a "C"-shaped plate-like structure, the two baffles (201) are located between the two second sealing gaskets (203), and the second sealing gaskets (203) clamped between the flow guide frame (1) and the connecting frame (2) are elastically deformed.

4. The concrete pipe pile residual slurry recycling component according to claim 2, characterized in that: The mounting frame (3) has an annular plate-like structure, and after the mounting frame (3) is inserted between the two baffles (201), it covers the plurality of preformed holes (204) on the surface of the baffles (201).

5. The concrete pipe pile residual slurry recycling component according to claim 1, characterized in that: The connecting plate (4) has an "L"-shaped plate-like structure, a protruding block (401) is fixed at one end of the connecting plate (4), a through hole (402) is opened on the surface of the protruding block (401), a first anti-loosening screw (403) is inserted into the through hole (402), and the bottom end of the first anti-loosening screw (403) is screwed to the top surface of the mounting frame (3).

6. The concrete pipe pile residual slurry recycling component according to claim 1, characterized in that: A through hole (404) is opened on one side of the bottom plate body of the connecting plate (4), the through hole (404) is a "convex"-shaped round hole, a second anti-loosening screw (405) is inserted into the inner side of the through hole (404), and one end of the second anti-loosening screw (405) is screwed to the surface of the connecting frame (2).

7. The concrete pipe pile residual slurry recycling component according to claim 1, characterized in that: Clamping grooves (205) are opened at the top of each of the two parallel distributed side plates of the connecting frame (2), the elastic metal hanging piece (406) has an "L"-shaped plate-like structure, the bottom plate body of the elastic metal hanging piece (406) is a right trapezoidal strip, the inclined surface of the right trapezoidal strip faces downward, and the right trapezoidal strip is inserted into the clamping groove (205).

8. The concrete pipe pile residual slurry recycling component according to claim 1, characterized in that: The mounting bracket (3) has a notch (302) on its top surface. A bracket (303) is inserted into and welded into the notch (302), and a vibration motor (304) is fixed in the bracket (303).

9. A method for recycling residual slurry from concrete pipe piles, comprising the concrete pipe pile residual slurry recycling assembly described in any one of claims 1-8, characterized in that: The method includes the following steps: After the pipe pile is centrifuged and formed, the pile core discharges cement-based residual slurry. The slurry is transported and collected through the guide frame (1) and then stored, homogenized and prevented from coagulating. The slurry is then pumped to the concentration detection and control equipment for concentration control. Finally, it is transported back to the mixing plant in a closed loop to replace the mixing water and reduce solid waste discharge.

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