A concrete wastewater treatment system

Abstract

The application provides a concrete wastewater treatment system, which comprises a raw slurry tank, a floating water tank and a treatment tank, the raw slurry tank is connected with the treatment tank through a first water pump, the floating water tank is connected with the raw slurry tank through a second water pump, a first partition plate is arranged between the raw slurry tank and the floating water tank, a first water guide hole is arranged on the upper edge of the first partition plate, the raw slurry tank and the treatment tank are both fixed with a horizontal plate, a power motor is fixedly connected to the horizontal plate, a power shaft of the power motor is connected with a stirring paddle for stirring mud and sand, a modifier tank is connected with the treatment tank through a main water pump, and the modifier tank is filled with a silicate high-alkali waste slurry activation modifier, so that the process of cleaning by workers is omitted and the efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of concrete treatment, and in particular, to a concrete wastewater treatment system. Background Technology

[0002] Currently, Chinese patent CN208839198U discloses a concrete wastewater treatment system, which relates to the field of wastewater treatment technology. The key technical points of the system include a collection tank, in which a first partition and a second partition are arranged at intervals. The first partition and the second partition divide the collection tank into a first sedimentation tank, a second sedimentation tank, and a clarification tank, which are independent of each other. The bottoms of the first sedimentation tank, the second sedimentation tank, and the clarification tank are stepped in a progressively decreasing manner. The upper ends of the first partition and the second partition are provided with connecting ports, and filter frames can be detachably installed in the connecting ports. The mesh count of the filter frames on the first partition is greater than that of the filter frames on the second partition.

[0003] This concrete wastewater treatment system can recycle sand and gravel from wastewater, reducing resource waste and improving wastewater purification efficiency.

[0004] However, in actual production, the silt generated from washing equipment such as mixing plants and mixer trucks that produce concrete waste enters the first sedimentation tank. The silt moves to the second sedimentation tank by gravity, but because the movement is slow, it solidifies in the first sedimentation tank, requiring workers to clean it, which is very inconvenient. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a concrete wastewater treatment system that eliminates the need for manual cleaning and improves production efficiency.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is: a concrete wastewater treatment system, comprising a raw slurry tank, a floating tank, and a treatment tank. The raw slurry tank and the treatment tank are connected by a first water pump, and the floating tank is connected to the raw slurry tank by a second water pump. A first partition is provided between the raw slurry tank and the floating tank. A first water guide hole is provided on the upper edge of the first partition. The system also includes a horizontal plate and an activator tank. The horizontal plate is fixed on both the raw slurry tank and the treatment tank. A power motor is fixedly connected to the horizontal plate. The power shaft of the power motor is connected to a stirring paddle for stirring mud and sand. The activator tank is connected to the treatment tank by a main water pump. The activator tank contains a silicate high-alkali waste slurry activating and modifying agent.

[0007] To achieve the above technical solution, the sludge generated from the mixing plant and mixing truck washing is injected into the raw slurry tank. The amount of water and sludge in the raw slurry tank gradually increases. A large amount of water and a small amount of sludge are injected into the floating tank through the first water guide hole. At this time, the concentration of sludge in the raw slurry tank increases. The power motor is turned on, and the power shaft drives the mixing paddle to rotate, so that the sludge is continuously stirred and does not easily solidify. After the concentration of sludge in the raw slurry tank reaches the specified value, the first water pump is turned on, and the sludge is injected from the raw slurry tank into the treatment tank. The main water pump is turned on, and the silicate high-alkali waste slurry activation modifier is injected into the treatment tank to enhance the activity of the sludge for reuse. Subsequently, the second water pump is turned on, and the sludge in the paddle floating tank is injected into the raw slurry tank, which greatly improves production efficiency.

[0008] As a preferred embodiment of the present invention, it further includes a clear water tank, wherein the floating water tank is located between the raw slurry tank and the clear water tank, and a second partition is provided between the floating water tank and the clear water tank. A second water guide hole is provided on the second partition, and the height of the second water guide hole is lower than the height of the first water guide hole.

[0009] To achieve the above technical solution, as the amount of water and sediment in the floating pool increases, the water in the floating pool enters the clear water pool through the second water guide hole, thereby obtaining clear water in the clear water pool, which can then be used to wash the mixing truck and the mixing tower.

[0010] As a preferred embodiment of the present invention, a third water pump is connected between the clear water tank and the raw slurry tank.

[0011] To achieve the above technical solution, in summer when the temperature is high, the third water pump is turned on to inject clean water from the clear water tank into the raw slurry tank, thereby reducing the concentration of silt in the raw slurry tank and preventing the concentration of silt in the raw slurry tank from becoming too high.

[0012] In a preferred embodiment of the present invention, a drive ring is rotatably connected to the power shaft, a friction structure is provided between the drive ring and the power shaft, a one-way structure for restricting the rotation of the drive ring is provided between the drive ring and the inner wall of the raw slurry tank, a reciprocating structure is provided on the side wall of the raw slurry tank, the drive ring is connected to the reciprocating structure through a connecting belt, and a push plate located below the stirring paddle is connected to the reciprocating structure.

[0013] To achieve the above technical solution, when the power shaft rotates in the forward direction, the unidirectional structure restricts the rotation of the drive ring. At this time, the power shaft drives the stirring paddle to rotate, so as to continuously stir the mud and sand, making it less likely to solidify. When the power shaft rotates in the reverse direction, the friction structure makes the drive ring rotate synchronously with the power shaft. The connecting belt starts the reciprocating structure, which drives the push plate to move back and forth, pushing the mud and sand towards the first water pump.

[0014] As a preferred embodiment of the present invention, the friction structure includes a friction ring and a friction groove. The friction groove is formed on the inner wall of the drive ring, the inner wall of the friction ring is fixed on the outer wall of the power shaft, and the friction ring is embedded in the friction groove.

[0015] To achieve the above technical solution, the friction between the friction ring and the inner wall of the friction groove enables the power shaft to drive the drive ring to rotate synchronously.

[0016] As a preferred embodiment of the present invention, the unidirectional structure includes a ratchet, a locking plate, and a first elastic element. The ratchet is fixed to the outer wall of the drive ring and is coaxially arranged with the drive ring. A fixing rod is fixedly connected to the inner wall of the raw pulp tank. The locking plate is rotatably connected to the fixing rod and is used to be embedded in the ratchet. The two ends of the first elastic element are respectively connected to the locking plate and the fixing rod.

[0017] To achieve the above technical solution, when the power shaft rotates in the forward direction, the elastic force of the first elastic element causes the clamping plate to be embedded in the ratchet to restrict the rotation of the ratchet, thereby restricting the rotation of the drive ring; when the power shaft rotates in the reverse direction, the ratchet pushes the clamping plate to move away from the ratchet, and the elastic force of the first elastic element keeps the clamping plate in contact with the outer wall of the ratchet.

[0018] In a preferred embodiment of the present invention, the reciprocating structure includes a rotating rod, a slide rail, a slide block, a first limiting block, a second limiting block, a connecting shaft, a drive wheel, a second elastic element, a swing rod, a first fixed post, a second fixed post, a first protruding post, a second protruding post, a third protruding post, and a fourth protruding post. The rotating rod is rotatably connected to the inner wall of the raw pulp tank. The rotating rod is connected to the drive ring via the connecting belt. The slide rail is fixed to the inner wall of the raw pulp tank and is parallel to the rotating rod. The slide block is slidably connected to the slide rail. The connecting shaft is rotatably connected to the slide block. The drive wheel is rotatably connected to the connecting shaft and abuts against the rotating rod. The drive wheel is inclined on the rotating rod. The first fixed post is fixed to the rotating rod via the connecting rod. On the connecting shaft, one end of the swing rod is rotatably connected to the connecting shaft, and the other end of the swing rod is used to abut against the first limiting block or the second limiting block. The second fixed post is fixed on the swing rod. The two ends of the second elastic element are respectively connected to the first fixed post and the second fixed post. The first limiting block and the second limiting block are both fixed on the inner wall of the raw pulp tank and are respectively close to the two ends of the rotating rod. The push plate is connected to the slide block. There is a gap between the two ends of the push plate and the inner wall of the raw pulp tank. The first protrusion, the second protrusion, the third protrusion, and the fourth protrusion are fixed on the slide block and are respectively located on both sides of the swing rod. The first protrusion and the second protrusion are used to abut against the side wall of the swing rod, and the third protrusion and the fourth protrusion are used to abut against the connecting rod.

[0019] To achieve the above technical solution, the drive ring rotates the rotating rod via a connecting belt. Since the drive wheel is inclined on the rotating rod, it drives the slide block to move along the length of the slide rail. When the end of the swing rod contacts the first limiting block, the first limiting block pushes the swing rod to rotate. When the swing rod rotates past the line formed by the axes of the first fixed post, the second fixed post, and the connecting shaft, the elastic force of the second elastic element causes the swing rod to contact the first protrusion, and the first fixed post drives the connecting shaft to rotate, causing the connecting rod to contact the first fixed post. When the three protruding pillars abut against each other, the connecting rod drives the connecting shaft to rotate, causing the drive wheel to turn. Under the combined action of the rotating rod and the drive wheel, the slide block moves in the opposite direction along the slide rail. Similarly, when the swing rod abuts against the second limiting block, the second limiting block pushes the swing rod to rotate. After the swing rod passes the connecting line, the swing rod abuts against the second protruding pillar. At this time, the slide block can move in the forward direction along the slide rail. During the forward and reverse movement of the slide block, the push plate moves synchronously with the slide block to scrape the mud and sand towards the first water pump, reducing the mud and sand residue in the raw slurry tank.

[0020] As a preferred embodiment of the present invention, a concrete concentration sensor is fixedly connected to the inner wall of the raw slurry tank, and the concrete concentration sensor is electrically connected to the first water pump, the second water pump, and the third water pump.

[0021] To achieve the above technical solution, a threshold is set for the concrete concentration sensor. When the concentration of silt in the raw slurry tank reaches the threshold, the first water pump starts to pump the silt into the treatment tank. When the concentration of silt in the raw slurry tank is too low, the second water pump starts to pump the silt from the floating tank into the raw slurry tank to increase the concentration of silt. When the concentration of silt in the raw slurry tank is too high, the third water pump starts to inject clean water from the clear water tank into the raw slurry tank to reduce the concentration of silt, thus achieving a fully automatic operation process.

[0022] As a preferred embodiment of the present invention, the raw pulp tank, the floating water tank, and the clear water tank are all provided with protective plates, and the protective plates are provided with through holes.

[0023] The above technical solutions will enhance worker protection.

[0024] In summary, the present invention has the following beneficial effects:

[0025] 1. When the power shaft rotates rapidly in the forward direction, the one-way structure restricts the rotation of the drive ring. At this time, the power shaft drives the stirring paddle to rotate rapidly to continuously stir the mud and sand, making it less likely to solidify.

[0026] 2. The power shaft rotates slowly in the opposite direction, and the drive ring rotates synchronously with the power shaft through the friction structure. The reciprocating structure is started through the connecting belt. The reciprocating structure drives the push plate to move back and forth, pushing the mud and sand towards the first water pump. At the same time, the stirring paddle rotates slowly with the power shaft. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0028] Figure 2 A schematic diagram illustrating the location of the concrete concentration sensor;

[0029] Figure 3 This diagram illustrates the positions of the first, second, and third water pumps.

[0030] Figure 4 This is a diagram illustrating the position of the push plate;

[0031] Figure 5 To reflect Figure 4 Enlarged view of point A;

[0032] Figure 6 This diagram illustrates the position of the drive wheels;

[0033] Figure 7 A cross-sectional schematic diagram of the friction ring.

[0034] Reference numerals: 11. Raw slurry tank; 12. Floating tank; 13. Treatment tank; 14. First water pump; 15. Second water pump; 16. Clear water tank; 17. Third water pump; 18. Activator tank; 19. Main water pump; 21. First baffle; 22. First water guide hole; 23. Second baffle; 24. Second water guide hole; 3. Horizontal plate; 31. Power motor; 32. Power shaft; 33. Agitator; 4. Concrete concentration sensor; 5. Drive ring; 6. Friction structure; 61. Friction ring; 62. Friction groove; 7. One-way structure; 71. Ratchet; 72. 73. Card plate; 84. First elastic element; 85. Connecting belt; 86. First bevel gear; 87. Second bevel gear; 98. Reciprocating structure; 99. Rotating rod; 90. Slide rail; 91. Slide block; 92. Second limit block; 93. Connecting shaft; 94. Drive wheel; 95. Second elastic element; 96. Swing rod; 97. First fixed post; 98. Second fixed post; 99. First protruding post; 99. Second protruding post; 99. Third protruding post; 99. Fourth protruding post; 100. Guard plate; 101. Through hole; 102. Push plate. Detailed Implementation

[0035] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and mastered.

[0036] A concrete wastewater treatment system includes a raw slurry tank 11, a flotation tank 12, and a treatment tank 13. The raw slurry tank 11 and the treatment tank 13 are connected by a first water pump 14, and the flotation tank 12 is connected to the raw slurry tank 11 by a second water pump 15. A first partition 21 is provided between the raw slurry tank 11 and the flotation tank 12, and a first water guide hole 22 is provided along the upper edge of the first partition 21. The flotation tank 12 is located between the raw slurry tank 11 and a clear water tank 16. A second partition 23 is provided between the flotation tank 12 and the clear water tank 16, and a second water guide hole 24 is provided on the second partition 23. The height of the second water guide hole 24 is lower than the height of the first water guide hole 22.

[0037] A third water pump 17 is fixedly connected between the clear water tank 16 and the raw slurry tank 11.

[0038] A horizontal plate 3 is fixed on both the raw slurry tank 11 and the treatment tank 13, and the horizontal plate 3 is located in the middle of the raw slurry tank 11 and the treatment tank 13. A vertically arranged power motor 31 is fixedly connected to the horizontal plate 3, and an agitator 33 for stirring mud and sand is fixedly connected to the power shaft 32 of the power motor 31. Multiple agitators 33 are evenly distributed along the axis of the power shaft 32.

[0039] The activator tank 18 is connected to the treatment tank 13 via the main water pump 19, and contains a silicate high-alkali waste slurry activator modifier.

[0040] A concrete concentration sensor 4 is fixedly connected to the inner wall of the raw slurry tank 11. The concrete concentration sensor 4 is electrically connected to the first water pump 14, the second water pump 15, and the third water pump 17.

[0041] When washing the mixing tank, mixing tower, and mixing truck, the generated mud and sand are poured into the raw slurry tank 11. The mud and sand will settle at the bottom of the raw slurry tank 11. As the amount of mud and sand poured into the raw slurry tank 11 increases, the water in the mud and sand floats to the top due to its low density, so most of the water and a small amount of mud and sand enter the floating water tank 12 through the first water guide hole 22.

[0042] As the amount of water and sediment in the floating pool 12 gradually increases, water is injected into the clear water pool 16 through the second water inlet 24 to obtain clear water. The clear water can be used to wash the mixer truck.

[0043] At this time, the concentration of mud and sand in the raw slurry tank 11 will gradually increase. The concentration of mud and sand in the raw slurry tank 11 is monitored by the concrete concentration sensor 4. When the concentration of mud and sand reaches the threshold, the concrete concentration sensor 4 sends an electrical signal to the first water pump 14. The first water pump 14 starts and pumps the mud and sand in the raw slurry tank 11 into the treatment tank 13.

[0044] Turn on the main water pump 19 and inject the silicate high-alkali waste slurry activation modifier into the treatment tank 13 through the main water pump 19. The silicate high-alkali waste slurry activation modifier makes the sludge less likely to solidify, and then the sludge can be injected into the finished product tank for reuse.

[0045] When the concentration of silt in the raw slurry tank 11 decreases and reaches the threshold, the second water pump 15 is turned on to introduce the silt in the floating tank 12 into the raw slurry tank 11.

[0046] In summer, water evaporates quickly, the water content in the raw slurry tank 11 is low, and the concentration of silt is too high. When the concentration of silt reaches the threshold, the third water pump 17 is turned on to inject clean water into the raw slurry tank 11 to reduce the concentration of silt.

[0047] This process is repeated to reuse the sediment, eliminating the need for a filter press and making it fully reusable, greatly improving resource utilization and reducing waste.

[0048] The power motor 31 is a servo motor. When the power motor 31 is started, the stirring paddle 33 rotates rapidly while the power shaft 32 rotates rapidly in the forward direction to quickly stir the mud and sand in the original slurry tank 11 and prevent solidification.

[0049] A drive ring 5 is rotatably connected to the drive shaft 32. A friction structure 6 is provided between the drive ring 5 and the drive shaft 32. A one-way structure 7 is provided between the drive ring 5 and the inner wall of the raw slurry tank 11 to restrict the rotation of the drive ring 5.

[0050] When the drive shaft 32 rotates rapidly in the forward direction, the one-way structure 7 restricts the rotation of the drive ring 5. When the drive shaft 32 rotates slowly in the reverse direction, the friction structure 6 causes the drive ring 5 to rotate synchronously with the drive shaft 32.

[0051] The friction structure 6 includes a friction ring 61 and a friction groove 62. The friction groove 62 is annular and is formed on the inner wall of the drive ring 5. The inner wall of the friction ring 61 is fixed to the outer wall of the power shaft 32, and the friction ring 61 is embedded in the friction groove 62. The friction ring 61 is made of carbon fiber reinforced composite material.

[0052] The unidirectional structure 7 includes a ratchet 71, a locking plate 72, and a first elastic element 73. The ratchet 71 is fixed to the outer wall of the drive ring 5 and is coaxially arranged with the drive ring 5. A fixing rod is fixedly connected to the inner wall of the raw pulp tank 11, and the locking plate 72 is rotatably connected to the fixing rod and is used to be embedded in the ratchet 71. The two ends of the first elastic element 73 are respectively connected to the locking plate 72 and the fixing rod.

[0053] When the power shaft 32 rotates rapidly in the forward direction, the elastic force of the first elastic element 73 causes the locking plate 72 to engage with the ratchet 71, preventing the drive ring 5 from rotating. When the power shaft 32 rotates slowly in the reverse direction, the ratchet 71 pushes the locking plate 72 away from the ratchet 71, and the friction of the friction ring 61 causes the power shaft 32 to drive the drive ring 5 to rotate synchronously.

[0054] A reciprocating structure 9 is provided on the side wall of the raw pulp tank 11, and the drive ring 5 is connected to the reciprocating structure 9 via a connecting belt 81. A first bevel gear 82 is rotatably connected to the inner wall of the raw pulp tank 11, and the first bevel gear 82 meshes with a second bevel gear 83.

[0055] The reciprocating structure 9 includes a rotating rod 91, a slide rail 92, a slide block 93, a first limiting block 94, a second limiting block 95, a connecting shaft 96, a drive wheel 97, a second elastic element 98, a swing rod 99, a first fixed post 991, a second fixed post 992, a first protruding post 993, a second protruding post 994, a third protruding post 995, and a fourth protruding post 996. The rotating rod 91 is rotatably connected to the inner wall of the raw slurry tank 11 and fixedly connected to the second bevel gear 83. The rotating rod 91 and the second bevel gear 83 are coaxially arranged.

[0056] The slide rail 92 is fixed to the inner wall of the raw slurry tank 11 and is arranged parallel to the rotating rod 91. The rotating rod 91 and the slide rail 92 are arranged horizontally. The slide block 93 is slidably connected to the slide rail 92. The connecting shaft 96 is rotatably connected to the slide block 93, and the drive wheel 97 is rotatably connected to the connecting shaft 96 and abuts against the rotating rod 91. The drive wheel 97 is inclined on the rotating rod 91. During the rotation of the rotating rod 91, the drive wheel 97 can drive the slide block 93 to move along the length direction of the slide rail 92.

[0057] The first fixed post 991 is fixed to the connecting shaft 96 by a connecting rod, which is horizontal and arranged radially along the connecting shaft 96. One end of the swing rod 99 is rotatably connected to the connecting shaft 96, and the other end of the swing rod 99 is used to abut against the first limiting block 94 or the second limiting block 95. The second fixed post 992 is fixed to the swing rod 99.

[0058] The two ends of the second elastic element 98 are connected to the first fixed post 991 and the second fixed post 992, respectively. The second elastic element 98 is a tension spring. The first limiting block 94 and the second limiting block 95 are both fixed to the inner wall of the original slurry tank 11 and are respectively close to the two ends of the rotating rod 91. The push plate 102 is fixedly connected to the slide 93, and there is a gap between the two ends of the push plate 102 and the inner wall of the original slurry tank 11. When the push plate 102 moves to the end close to the original slurry tank 11, the overflowing mud and sand can flow through the gap to the front of the push plate 102. The push plate 102 is located below the stirring paddle 33.

[0059] The first protrusion 993, the second protrusion 994, the third protrusion 995, and the fourth protrusion 996 are fixed on the slide block 93 and are located on both sides of the swing rod 99, respectively. The first protrusion 993 and the second protrusion 994 are used to abut against the side wall of the swing rod 99. The third protrusion 995 and the fourth protrusion 996 are used to abut against the connecting rod.

[0060] When the end of the swing rod 99 abuts against the first limiting block 94, the first limiting block 94 pushes the swing rod 99 to rotate. When the swing rod 99 rotates through the line formed by the axis of the first fixed post 991, the second fixed post 992, and the connecting shaft 96, the swing rod 99 abuts against the first protrusion 993 through the elastic force of the second elastic element 98, and the first fixed post 991 drives the connecting shaft 96 to rotate, causing the connecting rod to abut against the third protrusion 995. The connecting rod drives the connecting shaft 96 to rotate, causing the drive wheel 97 to turn. Under the combined action of the rotating rod 91 and the drive wheel 97, the slide block 93 moves in the opposite direction along the slide rail 92.

[0061] Similarly, when the swing rod 99 abuts against the second limit block 95, the second limit block 95 pushes the swing rod 99 to rotate. After the swing rod 99 rotates past the connecting line, the swing rod 99 abuts against the second protrusion 994. At this time, the slide block 93 can move forward along the slide rail 92. During the forward and reverse reciprocating movement of the slide block 93, the push plate 102 moves synchronously with the slide block 93 to scrape the mud and sand towards the first water pump 14 and reduce the mud and sand residue in the original slurry tank 11.

[0062] The raw slurry tank 11, the floating water tank 12, and the clear water tank 16 are all equipped with protective plates 100, and through holes 101 are opened on the protective plates 100.

[0063] Due to the high resistance of the mud and sand, if the pusher plate 102 moves quickly, it is easy to break. Therefore, the pusher plate 102 can only move slowly. If the agitator 33 rotates slowly, the mud and sand are easy to solidify. Therefore, the agitator 33 can only rotate quickly.

[0064] Of course, the above are just typical examples of the present invention. In addition, the present invention may have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. A concrete wastewater treatment system, comprising a raw slurry tank, a flotation tank, and a treatment tank, wherein the raw slurry tank and the treatment tank are connected via a first water pump, and the flotation tank is connected to the raw slurry tank via a second water pump, wherein a first partition is provided between the raw slurry tank and the flotation tank, and a first water guiding hole is provided along the upper edge of the first partition, characterized in that: It also includes a horizontal plate and an activator tank. The horizontal plate is fixed to both the raw slurry tank and the treatment tank. A power motor is fixedly connected to the horizontal plate, and the power shaft of the power motor is connected to a stirring paddle for mixing the sludge. The activator tank is connected to the treatment tank via a main water pump. The activator tank contains a silicate high-alkali waste slurry activating and modifying agent. A drive ring is rotatably connected to the power shaft, and a friction structure is provided between the drive ring and the power shaft. A one-way structure is provided between the drive ring and the inner wall of the raw slurry tank to restrict the rotation of the drive ring. A reciprocating structure is provided on the side wall of the raw slurry tank, and the drive ring is connected to the reciprocating structure via a connecting belt. The device includes a push plate located below the stirring paddle, a friction structure comprising a friction ring and a friction groove, the friction groove being formed on the inner wall of the drive ring, the inner wall of the friction ring being fixed to the outer wall of the drive shaft, and the friction ring being embedded in the friction groove. A unidirectional structure includes a ratchet, a locking plate, and a first elastic element. The ratchet is fixed to the outer wall of the drive ring and coaxially arranged with it. A fixing rod is fixedly connected to the inner wall of the raw slurry tank. The locking plate is rotatably connected to the fixing rod and is used to be embedded in the ratchet. The two ends of the first elastic element are respectively connected to the locking plate and the fixing rod. A reciprocating structure includes a rotating rod, a slide rail, a slide block, a first limiting block, and a second limiting block. The system comprises a block, a connecting shaft, a drive wheel, a second elastic element, a swing rod, a first fixed post, a second fixed post, a first protruding post, a second protruding post, a third protruding post, and a fourth protruding post. The rotating rod is rotatably connected to the inner wall of the raw pulp tank and is connected to the drive ring via a connecting belt. A slide rail is fixed to the inner wall of the raw pulp tank and is parallel to the rotating rod. A slide block is slidably connected to the slide rail. The connecting shaft is rotatably connected to the slide block. The drive wheel is rotatably connected to the connecting shaft and abuts against the rotating rod. The drive wheel is inclined on the rotating rod. The first fixed post is fixed to the connecting shaft via the connecting rod. One end of the swing rod is rotatably connected to the connecting shaft. The other end of the rod is used to abut against the first or second limiting block. The second fixed post is fixed to the swing rod. The two ends of the second elastic element are respectively connected to the first and second fixed posts. The first and second limiting blocks are both fixed to the inner wall of the raw slurry tank and are respectively close to the two ends of the rotating rod. The push plate is connected to the slide. There is a gap between the two ends of the push plate and the inner wall of the raw slurry tank. The first, second, third, and fourth protrusions are fixed to the slide and are respectively located on both sides of the swing rod. The first and second protrusions are used to abut against the side wall of the swing rod, and the third and fourth protrusions are used to abut against the connecting rod.

2. The concrete wastewater treatment system according to claim 1, characterized in that: It also includes a clear water tank, the floating water tank is located between the raw slurry tank and the clear water tank, and there is a second partition between the floating water tank and the clear water tank. The second partition has a second water guide hole, and the height of the second water guide hole is lower than the height of the first water guide hole.

3. The concrete wastewater treatment system according to claim 2, characterized in that: A third water pump is connected between the clear water tank and the raw slurry tank.

4. The concrete wastewater treatment system according to claim 3, characterized in that: A concrete concentration sensor is fixedly connected to the inner wall of the raw slurry tank, and the concrete concentration sensor is electrically connected to the first water pump, the second water pump, and the third water pump.

5. The concrete wastewater treatment system according to claim 3, characterized in that: The raw slurry tank, the floating water tank, and the clear water tank are all equipped with protective plates, and the protective plates have through holes.

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