Pipe pile concrete excess material recycling system

Abstract

The invention discloses a tubular pile concrete excess material recycling system, and relates to the technical field of tubular pile concrete excess material recycling, the tubular pile concrete excess material recycling system specifically comprises a blank forming table top, a raw material putting table top, a collecting pool, a stirrer, a material trough, a track and a circulating water pool, the blank forming table top is provided with the raw material putting table top, the raw material putting table top is provided with the stirrer, and the raw material putting table top is provided with the collecting pool; a material groove is formed in the side of the stirring machine, rails are evenly installed on the top of the blank forming table top, and a collecting pool and a circulating water pool are formed in the blank forming table top; the excess material recovery process is deeply embedded into the pipe pile production line, such as material distribution, flushing and die sleeve cleaning links, and production and recovery are synchronously performed through modular design such as groove conveying and a crushing and grading mechanism, so that new bottleneck nodes are avoided, the comprehensive cost is reduced through resource recycling, and the production efficiency is improved. And links such as raw material and waste material treatment and water resource control are integrally completed.

Description

Technical Field

[0001] The invention relates to the technical field of pipe pile concrete surplus material recovery, in particular to a pipe pile concrete surplus material recovery and recycling system. Background Art

[0002] Prestressed high-strength concrete pipe piles (PHC pipe piles, hereinafter referred to as pipe piles) are a kind of concrete products and are widely used in industrial and civil construction, roads, railways, airports, water conservancy, ports and terminals and other fields. In the production process of pipe piles, concrete mixing and distribution are very important processes, as mentioned in the utility model patent with publication number CN209682554U.

[0003] During the mixing and discharging process, concrete will overflow from the trough side. If it is not collected, there will be a problem of waste of residual materials. In addition to the mixer trough, concrete residual materials will accumulate in the hopper truck, distribution hopper, distribution mold sleeve, etc. In order to prevent the residual materials from agglomerating and hardening and affecting normal production and product quality, it is necessary to regularly or irregularly flush the mixer trough, hopper truck, distribution hopper, etc. with water, and clean the distribution mold sleeve, thereby generating a large amount of waste sand and gravel. If these waste sand and gravel are not handled in time, they will agglomerate and harden, and can only be taken to landfill as construction waste. At present, the traditional way of handling this concrete residual material (i.e., waste sand and gravel) in many pipe pile factories is to simply discharge or landfill it, which not only wastes resources but also pollutes the environment.

[0004] The present invention aims to solve the above-mentioned problems and provide a high-efficiency recycling and reuse system for concrete residues in pipe pile factories, which can realize the deep recycling and recycling of concrete residues (i.e., discarded sand and gravel) from mixer troughs, material transport hoppers, material distribution hoppers, material distribution mold sleeves, etc., so as to achieve the purpose of reducing pipe pile production costs, saving resources and protecting the environment. Summary of the Invention

[0005] The purpose of the present invention is to provide a system for recycling and reusing residual concrete of pipe piles, so as to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a system for recycling and reusing residual concrete materials of pipe piles, comprising a blank forming table, a raw material feeding table, a collection tank, a mixer, a material trough, rails and a circulating water tank, wherein the blank forming table is equipped with a raw material feeding table, a mixer is installed on the raw material feeding table, and a material trough is provided on the side of the mixer, rails are evenly installed on the top of the blank forming table, and the blank forming table is equipped with a collection tank and a circulating water tank;

[0007] A mobile bucket car is slidably connected to the fixed bracket of the blank forming table, a distribution bucket is installed on the fixed bracket of the blank forming table and on the top of the mobile bucket car, a distribution flat car is slidably connected to the rail, and a pipe mold is placed on the distribution flat car, and a distribution mold sleeve is placed on the top of the pipe mold by lifting it through an overhead crane;

[0008] The blank forming table is located in a groove just below the distribution hopper, and a mold sleeve cleaning machine is installed on the rail on one side and at the top of the groove. The groove extends to the collection pool and is connected thereto, and a cross groove is provided at the position of the collection pool and is connected to the groove. A sand scraping chain plate machine is installed in the groove, and a spiral feeder is installed in the cross groove. A crushing and grading mechanism is installed on the top of the blank forming table, and a water pump is installed on the blank forming table. The water inlet end of the water pump is connected to the collection pool, and the water outlet end of the water pump is connected to and fixed with a cleaning pipeline.

[0009] Furthermore, the crushing and grading mechanism includes a frame, a movable screen box and a crushing drum. The frame is fixed on the billet forming table, the movable screen box is slidably connected to the frame, the crushing drum is rollingly connected on the frame and located on the top of the movable screen box, and a first-level material receiving box and a second-level material receiving box are respectively provided on the frame and located at the bottom of the movable screen box.

[0010] Furthermore, a motor is fixed to the frame by bolts, a crankshaft is movably connected to the frame, and a rocker arm is movably sleeved on the crankshaft, and one end of the rocker arm is movably connected to the movable screen box.

[0011] Furthermore, a discharge assembly is fixedly connected to the frame, and one side of the discharge assembly passes through the crushing drum and is movably connected thereto. An opening is provided on the top of the discharge assembly, and a coiling fan blade is movably connected thereto on the inside. The discharge assembly is provided with a through groove in the crushing drum.

[0012] Furthermore, a temporary storage bucket is installed in the crushing drum, one side of the temporary storage bucket is movably connected to the discharge assembly, and the other side passes through the crushing drum and is sleeved with a pulley, a top column is slidably connected in the temporary storage bucket, and the top column is located on the temporary storage bucket and has extruded crushing blocks evenly fixed thereon.

[0013] Furthermore, a linkage gear shaft is movably connected on the frame and located on the side of the crushing drum. A gear on one side of the linkage gear shaft is meshed with a gear installed on the outer wall of the crushing drum. A retaining ring group is also movably connected to the frame, and the retaining ring group consists of a disc and a gear. A gear is sleeved on the other side of the linkage gear shaft and is meshed with the gear on the retaining ring group.

[0014] Furthermore, an abutment rod is rotatably connected to the frame, one side of the abutment rod abuts against the top column, and the other side abuts against the edge of the disc on the retaining ring group. A forward and reverse driving mechanism is installed on the inner wall of the frame, and a gear is sleeved on the forward and reverse driving mechanism and meshes with the gear on the linkage gear shaft.

[0015] Furthermore, the forward and reverse driving mechanism includes a ratchet sleeve, a driving shaft and a linkage disk. The driving shaft is fixedly connected to the output end of the fixed motor on the frame side. The gear mounted on the driving shaft is meshed with the linkage gear shaft. A ratchet sleeve is movably mounted on the driving shaft. A linkage disk is fixed on the driving shaft and located inside the ratchet sleeve. A stop block is slidably connected to the linkage disk, and a spring is installed at the bottom of the stop block. One side of the stop block abuts against the inner tooth pattern of the ratchet sleeve.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention realizes timely recovery and resource recycling of concrete residues, reduces production costs and reduces environmental pollution. The closed collection channel constructed by the groove, the scraping chain conveyor and the spiral feeder, combined with the instant flushing of the water pump and the cleaning pipeline, ensures that the concrete residues are quickly dispersed and transported to the collection pool before they agglomerate and harden. The residues are immersed in water throughout the process, which greatly reduces the probability of agglomeration, thereby solving the recycling problem caused by traditional landfill methods. At the same time, the recovered sand and gravel are processed by the crushing and grading mechanism to obtain qualified raw materials, which are directly used for the reproduction of pipe piles. The flushing water is reused after sedimentation and filtration in the circulating water pool, forming a closed-loop system of "residue recovery, crushing and screening, and raw material reuse", which significantly reduces raw material consumption and waste treatment costs, while reducing environmental pollution.

[0018] 2. In the present invention, an innovative crushing and screening mechanism is used to improve recovery efficiency and raw material applicability. The crushing drum is equipped with a temporary storage bucket and extrusion crushing blocks. The forward and reverse rotation timing of the crushing drum is controlled by a forward and reverse drive mechanism. The agglomerates are impacted and crushed by the extrusion crushing blocks driven by the top column in the temporary storage bucket. The incompletely crushed particles are automatically discharged and re-screened after temporary storage, which significantly improves the agglomeration efficiency and sand and gravel recovery rate. The movable screen box realizes screening by swinging the rocker, and the screen can be replaced according to the sand and gravel specifications. The screened particles fall into the first or second level collecting box according to the particle size, which meets the raw material grading requirements of different pipe pile production and avoids the waste of resources caused by traditional single screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the pipe pile concrete waste material recycling and utilization system of the present invention;

[0020] Figure 2 Schematic diagram of the main collection pool of the pipe pile concrete waste material recycling and utilization system of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall structure of the crushing and grading mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the main structure of the crushing and grading mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the crushing and grading mechanism from above;

[0024] Figure 6 This is a schematic diagram of the installation structure of the temporary storage bucket in the crushing drum of the present invention;

[0025] Figure 7 This is a schematic diagram of the installation structure of the movable screen box on the frame of the present invention;

[0026] Figure 8 This is a schematic diagram of the activity of the top column of the temporary storage bucket in the crushing drum of the present invention driving the extrusion of the crushed blocks;

[0027] Figure 9 It is a schematic diagram of the overall structure of the forward and reverse drive mechanism of the present invention.

[0028] In the figure: 1. Billet forming table; 2. Raw material feeding table; 3. Collection tank; 4. Mixer; 5. Mobile bucket car; 6. Distribution hopper; 7. Track; 8. Distribution flat car; 9. Distribution die sleeve; 10. Sand scraping chain conveyor; 11. Die sleeve cleaning machine; 12. Screw feeder; 13. Material trough; 14. Crushing and grading mechanism; 141. Frame; 142. Movable screen box; 143. Crushing drum; 144. First-stage collection Material box; 145, secondary material receiving box; 15, water pump; 16, cleaning pipeline; 17, circulating water pool; 18, rocker arm; 19, discharge assembly; 20, temporary storage bucket; 21, top column; 22, extrusion crushing block; 23, linkage gear shaft; 24, retaining ring group; 25, abutment rod; 26, forward and reverse drive mechanism; 261, ratchet sleeve; 262, drive shaft; 263, linkage disk; 264, block; 265, spring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-9 , the present invention provides a technical solution:

[0031] Example 1: The pipe pile concrete residual material recycling and utilization system of the present invention is divided into modular working areas, and a residual material flushing and collecting trough line is constructed between the blank forming table 1 and the raw material feeding table 2. In conjunction with the fixed cleaning pipeline 16, the relevant material trough 13, the mobile bucket car 5, the material distribution car and the material distribution mold sleeve 9 are quickly flushed after the pipe pile pouring is completed. The mortar falls directly into the corresponding trough, is transported by the sand scraping chain conveyor 10 and the spiral loader 12, and finally arrives at the crushing and grading mechanism 14 and the collection tank 3 to wait for processing;

[0032] The coarse and fine particles are classified to obtain qualified raw sand and gravel, which can be used for subsequent pipe pile production. Since the entire residual material is recycled in a relatively timely manner, and the concrete residual material is washed and soaked in water, the probability of agglomeration and hardening is low, and it is easy to become loose sand and gravel, so as to solve the difficulty of recycling and treating the agglomerated and hardened concrete residual material. The recycled sand and gravel are used for pipe pile raw material production, and the concrete residual material generated in the production process is recycled and reused in production again. The efficient recycling and cyclic utilization can achieve the purpose of reducing pipe pile production costs, saving resources and protecting the environment;

[0033] When doing specific operations, such as Figure 1 As shown, a groove is provided on the blank forming table 1, which is located directly below the material distribution hopper 6 and extends from the position of the die sleeve cleaning machine 11 to the collection tank 3 and is connected thereto. The groove crosses the groove in front of the collection tank 3 and is located at a position lower than the cross groove away from the groove. A sand scraping chain machine 10 is installed in the groove, and a semi-open spiral feeder 12 is installed in the cross groove.

[0034] The relevant process of pipe pile production is as follows: after the pipe mold passes through the drop cage and is covered with the distribution mold sleeve 9, it is placed on the distribution flat car 8. The distribution flat car 8 is located below the distribution hopper 6. The distribution flat car 8 is driven by a traction wire rope or friction wheel on the track 7 and can move forward or backward. After the mixer 4 mixes the concrete material, it is discharged into the material trough 13. The hopper truck is transported to the top of the distribution hopper 6 and the bottom plate valve is opened to evenly unload the concrete material. The concrete material is then distributed to the distribution mold sleeve 9 and the pipe mold directly below through the distribution hopper 6.

[0035] After the material distribution is completed, the material distribution flat car 8, the pipe mold, the material distribution mold sleeve 9, etc. leave the position below the material distribution hopper 6 together, and the material distribution mold sleeve 9 is lifted by the overhead crane to the mold sleeve cleaning machine 11 for cleaning. At the same time, the lifted upper mold is placed on the pipe mold for mold closing operation, and then centrifugal rotation is performed to prepare the pipe pile;

[0036] A water pump 15 is installed on the blank forming table 1. The end of the water pump 15 is connected to the circulating water tank 17, and the other side is connected to the cleaning pipeline 16. The cleaning pipeline 16 is used to clean the fixed area and promptly rinse the mold after the material is discharged. As for the distribution mold sleeve 9, due to its own length limitation, it needs to be processed separately by the mold sleeve cleaning machine 11. The concrete residue in the material trough 13 of the mixer 4 falls into the collection tank 3 for further processing, while the concrete residue in the hopper truck, distribution hopper 6, distribution mold sleeve 9, etc. falls into the groove;

[0037] The sand is moved by the scraping chain conveyor 10 and then sent to the crushing and grading mechanism 14 for screening and processing through the spiral feeder 12 to obtain qualified raw sand and gravel, which can be used for subsequent pipe pile production. If the crushing and grading mechanism 14 needs to be shut down for maintenance, the spiral feeder 12 will not be started. At this time, the remaining concrete will continue to be scraped to the collection tank 3 after the spiral feeder 12 for storage;

[0038] The flushing water will flow into the circulating water pool 17 on the blank forming table 1, and will be recycled by the water pump 15 after sedimentation and filtration. The efficient recycling and reuse system of concrete residues in the pipe pile factory of the present invention can simultaneously realize continuous production and continuous recycling to solve the difficulty of concrete residues being hardened and difficult to be recycled. The recycled sand and gravel are used for the production of pipe pile raw materials, and the concrete residues generated in the production process are recycled again for production. The efficient recycling and reuse can achieve the purpose of reducing the production cost of pipe piles, saving resources and protecting the environment.

[0039] Example 2: For the sand and gravel discharged into the crushing and grading mechanism 14, there is a small amount of agglomerates. Different from the traditional direct screening by the sieve plate, the crushing and grading mechanism 14 adopts the drum screening method to crush the remaining unscreened agglomerates online, thereby improving the overall sand and gravel recovery rate. Figure 3 As shown, the main frame 141 has two layers, a rolling crushing drum 143 is set on the top, and a movable screen box 142 that moves left and right is set on the bottom. The spiral feeder 12 corresponds to the discharge assembly 19 installed on the side of the crushing drum 143;

[0040] like Figure 8 As shown, the discharge assembly 19 is mounted on the frame 141 on one side of the crushing drum 143 and is movably connected thereto. The top opening is used for discharging sand material. At the same time, the side wall motor is connected to the winding blade, which feeds the sand material into the crushing drum 143 while rotating, and then falls into the crushing drum 143 through the groove.

[0041] As for the driving of the crushing drum 143, a forward and reverse driving mechanism 26 is installed on the frame 141. Figure 9 As shown, the gear set on the driving shaft 262 is meshed with the linkage gear shaft 23, and the linkage gear shaft 23 is meshed with the gear on the side wall of the crushing drum 143, thereby driving the entire crushing drum 143 to rotate in one direction. Figure 8It is understood that a temporary storage bucket 20 is also provided on the same side of the gear of the crushing drum 143. The temporary storage bucket 20 is located inside and outside the crushing drum 143 and is used to receive large particles that have not been screened during the rotation of the crushing drum 143. Since the temporary storage bucket 20 is movably connected to the crushing drum 143 and a pulley is provided on one side, an independent drive source is required.

[0042] At the same time, a sliding top column 21 is also provided in the temporary storage bucket 20. The top column 21 is located in the crushing drum 143 and is evenly provided with extrusion crushing blocks 22. The top column 21 cooperates with the fixed block 22 of the temporary storage bucket 20 to fall into the agglomerates between the two. The top column 21 moves unilaterally and is hit by the extrusion crushing blocks 22, thereby achieving online crushing during the agglomeration screening process.

[0043] However, if the crushed agglomerates cannot be discharged from the temporary storage bucket 20, the continuous feeding and the turning of the crushing roller 143 will cause the agglomerates between the squeezed crushed blocks 22 to gradually increase, and the impact crushing effect will drop sharply. At this time, the crushed agglomerates in the temporary storage bucket 20 need to be discharged;

[0044] like Figure 8 and Figure 9 As shown, a ratchet sleeve 261 is movably sleeved on the entire drive shaft 262, and a tooth pattern is provided on the inner wall of the ratchet sleeve 261. The outer side of the ratchet sleeve 261 is sleeved with a belt pulley at the end of the temporary storage bucket 20 through a belt. The entire temporary storage bucket 20 rotates in the crushing drum 143 by rotating the ratchet sleeve 261, and the opening direction of the temporary storage bucket 20 is controlled. When the opening faces downward, the crushed agglomerates automatically fall onto the crushing drum 143, thus realizing automatic discharge.

[0045] As for the rotation control of the ratchet sleeve 261, when it rotates forward, a stopper 264 is provided on the outer wall of the linkage disk 263 sleeved on the drive shaft 262. When it rotates clockwise, the stopper 264 squeezes the spring 265, resulting in the inability to drive the entire ratchet sleeve 261 to rotate. The gear at the end of the drive shaft 262 can drive the entire crushing drum 143 to rotate through the linkage gear shaft 23, thereby achieving the temporary storage bucket 20 to remain stationary while the entire crushing drum 143 rotates, completing the work of loading the unscreened agglomerates into the temporary storage bucket 20. At this time, the crushing block 22 squeezed on the top column 21 is used to crush the entire agglomerate.

[0046] When discharge is required, the drive shaft 262 rotates counterclockwise, driving the entire ratchet sleeve 261 to rotate. The ratchet sleeve 261 rotates while driving the entire temporary storage bucket 20 to rotate. The crushing drum 143 and the temporary storage bucket 20 rotate simultaneously to complete the crushing and agglomeration discharge work. Usually, the forward and reverse rotation time ratio is controlled at 5:1. Within one minute of rotation, 50 seconds of forward rotation and 10 seconds of reverse rotation;

[0047] For the top column 21 to move and reset in the temporary storage bucket 20, a multi-section spring 265 is provided in the temporary storage bucket 20 to abut against it. Except for the impact area of the squeezed crushing block 22, a cover is provided on the temporary storage bucket 20 to seal it, so as to prevent the agglomerates from falling into the non-squeezed area and hindering the movement of the top column 21. One end of the top column 21 is located outside the crushing drum 143, and a retaining ring group 24 is also movably connected to the frame 141.

[0048] like Figure 5 and Figure 6 As shown, the retaining ring group 24 is composed of a gear and a turntable, and the gear section retaining ring group 24 is driven to rotate by the linkage gear shaft 23, and the side wall of the turntable section is not flat, and a protrusion is set, which is located on the frame 141 and is rotatably connected to the abutment rod 25, as shown in FIG. Figure 4 As shown, as the retaining ring group 24 rotates, the protrusion on the turntable contacts the abutment rod 25, and the other side of the abutment rod 25 contacts the top column 21, thereby pushing the top column 21 to move in the temporary storage bucket 20, realizing automatic crushing of the agglomerated materials during the rotation process. Compared with the external discharge screening crushing, the overall efficiency of the sand and gravel agglomeration treatment is higher;

[0049] For the screened concrete residues that continuously fall from the crushing drum 143, the frame 141 is further provided with a movable screen box 142, and the bottom screen aperture is adjusted according to the specifications of the recycled concrete residues. If the requirements are low, the movable screen box 142 can be kept inactive and the crushed materials screened by the crushing drum 143 can be directly received. If the requirements are high, the crankshaft is driven by the motor to rotate. Figure 7 As shown, a movable rocker arm 18 is mounted on the crankshaft to pull the entire movable screen box 142 to move left and right, completing the fine sorting of the materials after primary crushing and screening. The screened materials fall into the secondary material receiving box 145, and the unscreened materials fall into the primary material receiving box 144. Crushed particles of different diameters have different uses.

[0050] The above contents are merely examples and explanations of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they shall fall within the scope of protection of the present invention.

Claims

1. A system for recycling and utilizing residual concrete materials of pipe piles, comprising a blank forming table (1), a raw material feeding table (2), a collecting pool (3), a mixer (4), a material trough (13), a track (7) and a circulating water pool (17), characterized in that: The blank forming table (1) is equipped with a raw material feeding table (2), a mixer (4) is installed on the raw material feeding table (2), and a material trough (13) is provided on the side of the mixer (4), rails (7) are evenly installed on the top of the blank forming table (1), and the blank forming table (1) is equipped with a collection pool (3) and a circulating water pool (17); A mobile bucket car (5) is slidably connected to the fixed bracket of the blank forming table (1), a distribution hopper (6) is installed on the fixed bracket of the blank forming table (1) and located on the top of the mobile bucket car (5), a distribution flat car (8) is slidably connected to the rail (7), and a pipe mold is placed on the distribution flat car (8), and a distribution mold sleeve (9) is placed on the top of the pipe mold by lifting it through an overhead crane; The blank forming table (1) is provided with a groove directly below the material distribution hopper (6), a mold sleeve cleaning machine (11) is installed on the rail (7) on one side and at the top of the groove, the groove extends to the collection pool (3) and is connected thereto, a cross groove is provided at the position of the collection pool (3) and is connected to the groove, a sand scraping chain plate machine (10) is installed in the groove, a spiral feeder (12) is installed in the cross groove, a crushing and grading mechanism (14) is installed on the top of the blank forming table (1), a water pump (15) is installed on the blank forming table (1), the water inlet end of the water pump (15) is connected to the collection pool (3), and the water outlet end of the water pump (15) is connected to and fixed with a cleaning pipeline (16).

2. A pipe pile concrete waste recycling system according to claim 1, characterized in that: The crushing and grading mechanism (14) comprises a frame (141), a movable screen box (142) and a crushing drum (143); the frame (141) is fixed on the blank forming table (1); the movable screen box (142) is slidably connected to the frame (141); the crushing drum (143) is rollably connected to the frame (141) and located on the top of the movable screen box (142); and a first-level material receiving box (144) and a second-level material receiving box (145) are respectively provided on the frame (141) and located on the bottom of the movable screen box (142).

3. The system for recycling and utilizing residual concrete materials of pipe piles according to claim 2, characterized in that: A motor is fixed to the frame (141) by bolts, a crankshaft is movably connected to the frame (141), and a swing rod (18) is movably connected to the crankshaft, and one end of the swing rod (18) is movably connected to the movable screen box (142).

4. A pipe pile concrete waste recycling system according to claim 3, characterized in that: A discharge assembly (19) is fixedly connected to the frame (141), and one side of the discharge assembly (19) passes through the crushing drum (143) and is movably connected thereto. An opening is provided at the top of the discharge assembly (19), and a coiling fan blade is movably connected thereto on the inside. The discharge assembly (19) is provided with a through slot in the crushing drum (143).

5. The system for recycling and utilizing residual pipe pile concrete according to claim 4, characterized in that: A temporary storage bucket (20) is installed in the crushing drum (143), one side of the temporary storage bucket (20) is movably connected to the discharge assembly (19), and the other side passes through the crushing drum (143) and is sleeved with a pulley. A top column (21) is slidably connected in the temporary storage bucket (20), and the top column (21) is located on the temporary storage bucket (20) and is evenly fixed with extrusion crushing blocks (22).

6. The system for recycling and utilizing residual pipe pile concrete according to claim 5, characterized in that: A linkage gear shaft (23) is movably connected to the frame (141) and located on the side of the crushing drum (143). A gear on one side of the linkage gear shaft (23) is meshed with a gear installed on the outer wall of the crushing drum (143). A retaining ring group (24) is also movably connected to the frame (141). The retaining ring group (24) is composed of a disc and a gear. A gear is sleeved on the other side of the linkage gear shaft (23) and is meshed with a gear on the retaining ring group (24).

7. The system for recycling and utilizing residual concrete materials of pipe piles according to claim 6, characterized in that: The frame (141) is rotatably connected to an abutting rod (25), one side of the abutting rod (25) abuts against the top column (21), and the other side abuts against the edge of the upper disk of the retaining ring assembly (24). A forward and reverse driving mechanism (26) is installed on the inner wall of the frame (141), and a gear sleeved on the forward and reverse driving mechanism (26) is meshed with a gear on the linkage gear shaft (23).

8. The system for recycling and utilizing residual pipe pile concrete according to claim 7, characterized in that: The forward and reverse driving mechanism (26) comprises a ratchet sleeve (261), a driving shaft (262) and a linkage disk (263); the driving shaft (262) is fixedly connected to the output end of the fixed motor on the frame (141); a gear sleeved on the driving shaft (262) is meshed with the linkage gear shaft (23); the driving shaft (262) is movably sleeved with a ratchet sleeve (261); a linkage disk (263) is sleeved and fixed on the driving shaft (262) and located inside the ratchet sleeve (261); a stopper (264) is slidably connected to the linkage disk (263); a spring (265) is installed at the bottom of the stopper (264); and one side of the stopper (264) abuts against the inner tooth pattern of the ratchet sleeve (261).

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