A concrete mixer waste water and waste slurry recycling system

Abstract

The application provides a concrete mixer truck wastewater and waste slurry recycling system. The concrete mixer truck wastewater and waste slurry recycling system comprises a lower box body and an upper box body, a connecting frame is fixedly installed on the top of the upper box body, a stirring rod is rotatably installed on the connecting frame, the bottom end of the stirring rod extends into the lower box body and the upper box body, and the stirring rod is rotatably connected with the upper box body, a baffle is fixedly installed on the inner wall of the bottom of the lower box body, a plurality of overflow holes are formed in the baffle, a shuttle opening one is formed in the bottom of the lower box body, a sealing plate one is arranged on the inner wall of the bottom of the lower box body, a connecting strip is fixedly installed on the bottom of the sealing plate one, and the connecting strip penetrates through the shuttle opening one. The concrete mixer truck wastewater and waste slurry recycling system has the advantages that the baffle and the overflow holes can be conveniently cleaned and dredged, and the concrete wastewater recycling efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of concrete wastewater recycling technology, and in particular to a system for recycling and reusing wastewater and slurry from concrete mixer trucks. Background Technology

[0002] In earthwork construction such as building construction and road construction, a large amount of concrete is used. Therefore, transporting concrete is one of the more important construction links. At present, the most common method is to use concrete mixer trucks for transportation. These mixer trucks have a continuously rotating concrete bucket. By rotating continuously, the concrete inside is prevented from solidifying and its flowability is maintained. After the concrete is poured out of the mixer truck, a lot of concrete residue remains on the inner wall of the bucket. In order to prevent this concrete residue from solidifying on the inner wall, it is cleaned by rinsing with clean water. The wastewater after cleaning contains a lot of cement slurry and sand. Therefore, in order to improve the utilization rate of this concrete residue, people usually collect this wastewater and slurry, and then filter out the cement and sand for reuse.

[0003] For example, patent document CN112356281B discloses a wastewater recycling system for concrete mixer trucks, belonging to the technical field of concrete building material processing. It includes a sedimentation tank for collecting cleaning fluid from concrete mixer trucks. The bottom of the sedimentation tank has a conveyor for collecting settled sediment. A clear water tank is connected to the side wall near the top of the sedimentation tank. A stirring shaft is installed in the clear water tank, rotatably positioned at the bottom. A drain manifold is connected to the side wall of the clear water tank, and a drive device for rotating the stirring shaft is installed on the drain manifold. A metering pump is connected to the clear water tank. This invention, through the installation of the stirring shaft, facilitates cement sedimentation. The cement slurry is stirred during discharge, ensuring thorough mixing of cement and water. This results in a uniform mixture of cement and water in the clear water tank. When the cement slurry is extracted for reuse, the cement content will be uniform, preventing uneven cement content within the same clear water tank.

[0004] However, in practical use, it has been found that although the above invention is equipped with baffles and overflow holes in its clear water tank, some slightly larger cement and gravel particles can easily enter the overflow holes and clog them during long-term use. This causes the filtration performance of the baffles to gradually deteriorate. On the one hand, the closed clear water tank makes it inconvenient for people to inspect and maintain its internal components, including the baffles and stirring shaft. On the other hand, it is not possible to unclog and clean the overflow holes and baffles in a timely and quick manner, thus failing to improve the recycling efficiency.

[0005] Therefore, it is necessary to provide a system for recycling and reusing wastewater and slurry from concrete mixer trucks to solve the above-mentioned technical problems. Summary of the Invention

[0006] The technical problem solved by this invention is to provide a concrete mixer truck wastewater and slurry recycling system that facilitates the cleaning and unblocking of baffles and overflow holes and improves the efficiency of concrete wastewater recycling.

[0007] To solve the above-mentioned technical problems, the present invention provides a concrete mixer truck wastewater and slurry recycling system, comprising: a lower box and an upper box. A connecting frame is fixedly installed on the top of the upper box, and a stirring rod is rotatably installed on the connecting frame. The bottom end of the stirring rod extends into the lower and upper boxes and is rotatably connected to the upper box. A baffle is fixedly installed on the bottom inner wall of the lower box, and the baffle has multiple overflow holes. A shuttle opening is provided at the bottom of the lower box, and a sealing plate is provided on the bottom inner wall of the lower box. A connecting strip is fixedly installed at the bottom of the first duct, the connecting strip passes through the first shuttle port, and multiple unclogging rods are fixedly installed on the connecting strip. Each of the multiple unclogging rods is adapted to the corresponding overflow hole. A sealing plate is fixedly installed at the bottom of the connecting strip. Both the first sealing plate and the second sealing plate are adapted to the first shuttle port. The top of the upper box has a second shuttle port. A shovel plate is provided above the upper box. The shovel plate is adapted to the second shuttle port. The side of the shovel plate away from the stirring rod and the side of the baffle close to the stirring rod are on the same vertical plane.

[0008] Preferably, the lower housing is fixedly connected to the upper housing by bolts.

[0009] Preferably, load-bearing plates are fixedly installed on both outer walls of the lower housing. A cylinder is fixedly installed on the load-bearing plate near the connecting strip. The output shaft of the cylinder passes through the corresponding load-bearing plate and is fixedly installed on the housing. The output shaft of the cylinder is slidably connected to the corresponding load-bearing plate. A screw is rotatably installed inside the housing. A lifting plate is threaded onto the screw. The top of the lifting plate is fixedly connected to the sealing plate. A motor is fixedly installed at the bottom of the housing. The output shaft of the motor is fixedly connected to the bottom end of the screw.

[0010] Preferably, a second box body is fixedly installed on the top of the upper box body, a second screw is rotatably installed inside the second box body, a second lifting plate is threaded onto the second screw, a connecting rod is fixedly installed at the bottom of the second lifting plate, the bottom end of the connecting rod is fixedly connected to the shovel plate, a second motor is fixedly installed on the top of the second box body, and the output shaft of the second motor is fixedly connected to the top end of the second screw.

[0011] Preferably, the bottom of the lower box is provided with a drain port, a flow guide is fixedly installed at the bottom of the lower box, a threaded cap is threadedly fitted at the bottom of the flow guide, a motor is fixedly installed at the top of the connecting frame, and the output shaft of the motor is fixedly connected to the top of the stirring rod.

[0012] Preferably, a side frame plate is fixedly installed on the top of the upper box, and a box body three is fixedly installed on the side of the side frame plate near the shovel plate. A screw three is rotatably installed inside the box body three, and a sliding plate is threaded onto the screw three. A connecting box is fixedly installed at the bottom of the sliding plate. A frame is provided inside the connecting box. One side of the frame extends outside the connecting box and is slidably connected to one side of the connecting box. A sealing plate three is fixedly installed at the bottom of the frame. A sealing plug is fixedly installed at the bottom of the sealing plate three. The sealing plug is located inside the shuttle port two, and the two are compatible.

[0013] Preferably, a motor four is fixedly installed on one outer wall of the box body three, and the output shaft of the motor four is fixedly connected to one end of the screw three. A rotating shaft is rotatably installed inside the connecting box, and a cam is fixedly sleeved on the rotating shaft. The protruding end of the cam abuts against the bottom inner wall of the frame body. A motor five is fixedly installed on one outer wall of the connecting box, and the output shaft of the motor five is fixedly connected to one end of the rotating shaft.

[0014] Preferably, the lower housing and the upper housing are interlocked. Connecting seats are fixedly installed on both outer walls of the lower housing, and each connecting seat has a groove at its top. Protruding plates are fixedly installed on both outer walls of the upper housing, and sockets are fixedly installed at the bottom of each protruding plate. The bottoms of each socket extend into the corresponding grooves, and positioning grooves are formed on the sides of the sockets that are far apart from each other. Crossbars are fixedly installed on both outer walls of the lower housing, and linkage plates are slidably installed on each crossbar. Positioning plates are fixedly installed on the sides of the linkage plates that are close to each other, and the ends of the positioning plates that are close to each other extend into the corresponding positioning grooves. Both positioning plates are slidably connected to the corresponding connecting seats.

[0015] Preferably, limit plates are fixedly installed at the ends of the two crossbars that are far apart from each other, springs are sleeved on the two crossbars, the ends of the two springs that are close to each other are fixedly connected to the lower housing, and the ends of the two springs that are far apart from each other are fixedly connected to the corresponding linkage plate.

[0016] Preferably, motor six is ​​fixedly installed on both outer walls of the lower housing, and toothed gears are fixedly sleeved on the output shafts of the two motor sixes. Toothed racks are fixedly installed on the bottom of the two linkage plates, and the two toothed racks are adapted to and separated from the corresponding toothed gears.

[0017] Compared with related technologies, the concrete mixer truck wastewater and slurry recycling system provided by this invention has the following beneficial effects:

[0018] This invention provides a wastewater and slurry recycling system for concrete mixer trucks. Multiple unblocking rods, corresponding to various overflow holes, extend through the cylinder output shaft to directly expel all blockages from the overflow holes. Then, using a screw and lifting plate, a shovel descends, scraping off mud and impurities from the baffle plate along with the expelled blockages. This debris is then discharged smoothly through a guide hood, ensuring the normal filtration performance of the overflow holes and improving the recycling efficiency of concrete wastewater. Furthermore, the scraped mud and gravel can be reused. Additionally, the detachable design between the lower and upper housings allows for easy maintenance of the internal mixing rods and baffles, ensuring component performance and extending their lifespan.

[0019] Furthermore, in order to further speed up the disassembly of the upper and lower housings and improve maintenance efficiency, the positioning plate can be quickly pulled out of the positioning slot by starting the motor and utilizing the meshing between the toothed gear and the toothed rack. Compared with the traditional bolt installation method, this method is much faster. Attached Figure Description

[0020] Figure 1 A front view schematic diagram of the first embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention;

[0021] Figure 2 A cross-sectional structural schematic diagram of the first embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention;

[0022] Figure 3 A schematic diagram of the opening structure of shuttle port one in the first embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention.

[0023] Figure 4 A schematic diagram of the opening structure of shuttle port two in the first embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention.

[0024] Figure 5 A schematic diagram of the internal structure of box one in the first embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention;

[0025] Figure 6 A schematic diagram of the connection structure of the second box, the second screw, and the second lifting plate in the first embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention.

[0026] Figure 7 A schematic diagram of the connection structure of the side frame plate, box body, connecting box and frame body in the first embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention;

[0027] Figure 8 A schematic diagram of the internal structure of the box body and the connecting box in the first embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention;

[0028] Figure 9 This is a front view schematic diagram of a second embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention.

[0029] Figure 10 for Figure 9 An enlarged structural diagram of part A shown;

[0030] Figure 11 A schematic diagram of the lower box in the second embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention;

[0031] Figure 12 for Figure 11 An enlarged structural diagram of part B is shown;

[0032] Figure 13 This is a schematic diagram of the connection structure of the upper box, the protruding plate, and the socket in the second embodiment of the concrete mixer truck wastewater and slurry recycling system provided by the present invention.

[0033] The diagram is labeled as follows: 1. Lower box; 2. Upper box; 3. Connecting frame; 4. Stirring rod; 5. Baffle; 6. Overflow hole; 7. Shuttle port one; 8. Sealing plate one; 9. Connecting strip; 10. Unblocking rod; 11. Sealing plate two; 12. Box one; 13. Screw one; 14. Lifting plate one; 15. Shuttle port two; 16. Box two; 17. Screw two; 18. Lifting plate two; 19. Connecting rod; 20. Shovel plate; 21. Side frame plate; 22. Box three; 23. Screw three; 24. Sliding plate; 25. Connecting box; 26. Frame; 27. Sealing plate three; 28. Rotating shaft; 29. ​​Cam; 30. Connecting seat; 31. Slot; 32. Protruding plate; 33. Socket; 34. Positioning slot; 35. Crossbar; 36. Linkage plate; 37. Positioning plate. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] First embodiment:

[0036] Please refer to the following: Figures 1-8In the first embodiment of the present invention, the wastewater and slurry recycling system for concrete mixer trucks includes: a lower box 1 and an upper box 2 connected by bolts, both designed to be detachable for easy inspection and maintenance of their internal components. A connecting frame 3 is fixedly installed on the top of the upper box 2, and a stirring rod 4 is rotatably installed on the connecting frame 3. The bottom end of the stirring rod 4 extends into the lower box 1 and the upper box 2, and the stirring rod 4 is rotatably connected to the upper box 2. A baffle 5 is fixedly installed on the bottom inner wall of the lower box 1, and multiple overflow holes 6 are provided on the baffle 5. A shuttle opening 7 is provided at the bottom of the lower box 1, and a sealing plate 8 is provided on the bottom inner wall of the lower box 1 to seal the shuttle opening 7. A connecting strip 9 is fixedly installed at the bottom of the sealing plate 8, and the connecting strip 9 passes through the shuttle opening 7. Multiple... The unblocking rod 10, and multiple unblocking rods 10 are adapted to the corresponding overflow hole 6. The bottom of the connecting strip 9 is fixedly installed with the sealing plate 21. The sealing plate 11 and the sealing plate 21 designed above are adapted to the shuttle port 17 and can block it. The shuttle port 25 is opened at the top of the upper box 2. The shuttle port 25 can provide the descent space for the shovel plate 20. The shovel plate 20 is provided above the upper box 2. The overall length of the shovel plate 20 is the same as that of the baffle 5, so that the mud and sand attached to the baffle 5 can be completely scraped off. The size of the shovel plate 20 matches that of the shuttle port 215, so that it can pass smoothly through the shuttle port 215. In the initial state, the side of the shovel plate 20 away from the stirring rod 4 and the side of the baffle 5 close to the stirring rod 4 are on the same vertical plane, so that the shovel plate 20 can scrape off the attached material on the baffle 5.

[0037] like Figure 1 As shown, in the above method, in order to smoothly bring the connecting strip 9 with the unblocking rod 10 into the lower box 1, load-bearing plates are fixedly installed on both outer walls of the lower box 1. A cylinder is fixedly installed on the load-bearing plate near the connecting strip 9, and its output shaft passes through the corresponding load-bearing plate and is fixedly installed on the box body 12. The output shaft of the cylinder is slidably connected to the corresponding load-bearing plate. At the same time, in order to reduce the load on the cylinder output shaft, two support rods are slidably installed on the load-bearing plate, and one end of the two support rods... All are fixed to the box body 12, and a screw 13 is rotatably installed inside the box body 12. A lifting plate 14 is threaded onto the screw 13. In order to ensure that the lifting plate 14 can only lift linearly, a vertical rod 1 is fixed inside the box body 12. The vertical rod 1 passes through the lifting plate 14 and is slidably connected to the lifting plate 14. The top of the lifting plate 14 is fixedly connected to the sealing plate 11. A motor 1 is fixedly installed at the bottom of the box body 12, and its output shaft is fixedly connected to the bottom end of the screw 13.

[0038] like Figure 1As shown, in this method, in order to enable the shovel plate 20 to descend linearly, a box body 2 16 is fixedly installed on the top of the upper box body 2, and a screw 2 17 is rotatably installed inside it. A lifting plate 2 18 is threaded onto the screw 2 17, and a vertical rod 2 is fixed inside the box body 2 16. The vertical rod 2 passes through the lifting plate 2 18 and is slidably connected to the lifting plate 2 18. A connecting rod 19 is fixedly installed at the bottom of the lifting plate 2 18, and its bottom end is fixedly connected to the shovel plate 20. A motor 2 is fixedly installed at the top of the box body 2 16, and its output shaft is fixedly connected to the top end of the screw 2 17.

[0039] like Figure 1 As shown, a drain port is provided at the bottom of the lower box 1, and a flow guide is fixedly installed at the bottom of the lower box 1, so that the mud and sand fluid can be discharged in a concentrated manner. A threaded cap is threaded on the bottom of the flow guide, and the mud and sand are discharged by screwing on the threaded cap. A motor is fixedly installed on the top of the connecting frame 3, and its output shaft is fixedly connected to the top of the stirring rod 4.

[0040] like Figure 7 As shown, in this method, in order to block the shuttle opening 15, a side frame plate 21 is fixedly installed on the top of the upper box 2. A box body 22 is fixedly installed on the side of the side frame plate 21 near the shovel plate 20. A screw rod 23 is rotatably installed inside the box body 22, and a sliding plate 24 is threaded onto the screw rod 23. In order to ensure that the sliding plate 24 can only move linearly horizontally, a limit rod is fixed on the side frame plate 21. The limit rod passes through the sliding plate 24 and is slidably connected to the sliding plate 24. In addition, in order to prevent the sliding plate 24 from slipping off the limit rod, a circular piece is fixed at the end of the limit rod. The circular piece can form a block and is fixed on the outer wall of one side of the box body 22. A motor 4 is installed, and its output shaft is fixedly connected to one end of the screw 3 23. A connecting box 25 is fixedly installed at the bottom of the sliding plate 24, and two columns are fixed inside the box. The same frame 26 is slidably installed on the two columns, and one side of the frame 26 extends to the outside of the connecting box 25 and is slidably connected to one side of the connecting box 25. A sealing plate 3 27 is fixedly installed at the bottom of the frame 26, which can completely cover the shuttle port 2 15. A sealing plug located inside the shuttle port 2 15 is fixedly installed at the bottom of the sealing plate 3 27, thereby further improving the sealing performance. In addition, an avoidance opening is provided on the side frame plate 21, through which the connecting box 25 can pass.

[0041] like Figure 7-8 As shown, in the above method, in order to make the sealing plate 27 tightly contact the top of the upper box 2, a rotating shaft 28 is rotatably installed inside the connecting box 25, and a cam 29 is fixedly sleeved on it. The protruding end of the cam 29 abuts against the bottom inner wall of the frame 26. A motor 5 is fixedly installed on one side outer wall of the connecting box 25, and its output shaft is fixedly connected to one end of the rotating shaft 28.

[0042] In this embodiment

[0043] In the process of recycling concrete wastewater and slurry, if the overflow hole 6 on the baffle 5 becomes severely clogged, in order to ensure its filtration performance, the threaded cover on the guide cover can be opened first to discharge the excess wastewater in the lower box 1. Then, the motor is started, and its output shaft drives the screw 13 to rotate. At this time, through the threaded engagement between the screw 13 and the lifting plate 14, the lifting plate 14 will rise with the connecting strip 9. At the same time, the sealing plate 8 will separate from the bottom inner wall of the lower box 1 until the sealing plate 11 contacts the bottom of the lower box 1. Then, the motor is turned off. At this time, multiple unblocking rods 10 are horizontally aligned with the corresponding overflow hole 6. Then, the output shaft of the cylinder is extended, and multiple unblocking rods 10 move toward the corresponding overflow hole 6 and finally insert into it. In this way, the blockage in the overflow hole 6 can be pushed out. In the pushed-out state, the end face of the unblocking rod 10 near the stirring rod 4 is perpendicular and flush with the end face of the baffle 5 near the stirring rod 4, and no protrusion appears.

[0044] Then, the output shaft of motor five is started and rotated 180°. Shaft 28 then rotates cam 29, which also rotates 180°. At this point, the protruding end of cam 29 rotates to contact the top inner wall of frame 26. Simultaneously, frame 26, along with sealing plate 27 and sealing plug, rises, opening shuttle port 25. Then, motor four is started in the forward direction, and its output shaft rotates screw 23. Utilizing the threaded engagement between screw 23 and sliding plate 24, the connecting box 25 and frame 26 can be moved horizontally away from shovel plate 20. With no obstructions below the shovel plate 20, the second motor is started in the forward direction. Its output shaft drives the second screw 17 to rotate. Through the threaded relationship between the second screw 17 and the second lifting plate 18, and driven by the connecting rod 19, the shovel plate 20 descends and passes through the shuttle opening 15. When the shovel plate 20 contacts the side of the baffle 5, it will scrape off the mud, sand and other impurities attached to it. At the same time, the descent of the shovel plate 20 will also contact the end face of the unblocking rod 10, thus successfully scraping off the pushed-out blockage and finally discharging it through the guide shroud.

[0045] After cleaning, reverse the above steps, bring the sealing plate 8 back to contact the bottom inner wall of the lower box 1, and seal the shuttle opening 7. At the same time, bring the shovel plate 20 back to the top of the upper box 2, and use the sealing plate 27 and the sealing plug to block the shuttle opening 15.

[0046] Compared with related technologies, the concrete mixer truck wastewater and slurry recycling system provided by this invention has the following beneficial effects:

[0047] This invention, through the design of multiple unblocking rods 10 corresponding to multiple overflow holes 6, can smoothly push out all the blockages in the overflow holes 6 by extending the cylinder output shaft. Then, using the cooperation of screw 17 and lifting plate 18, the scraper 20 is lowered, and during the descent, the mud and impurities attached to the baffle 5 and the pushed-out blockages are scraped off and smoothly discharged through the guide hood, thereby ensuring the normal filtration performance of the overflow holes 6 and improving the recycling efficiency of concrete wastewater. In addition, the scraped mud and sand can be reused. Furthermore, the detachable design between the lower box 1 and the upper box 2 allows workers to easily maintain and repair the internal stirring rod 4 and baffle 5, ensuring the performance of the components and extending their service life.

[0048] Second embodiment:

[0049] Based on the concrete mixer truck wastewater and slurry recycling system provided in the first embodiment of this application, the second embodiment of this application proposes another concrete mixer truck wastewater and slurry recycling system. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0050] The second embodiment of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0051] Please refer to the following: Figures 9-13In the second embodiment of the concrete mixer truck wastewater and slurry recycling system proposed in this invention: the lower box 1 and the upper box 2 are interlocked. This interlocking method allows for quicker and more convenient opening of the two boxes, improving maintenance efficiency. Connecting seats 30 are fixedly installed on both outer walls of the lower box 1, and grooves 31 are formed at the top of each connecting seat 30. Protruding plates 32 are fixedly installed on both outer walls of the upper box 2, and sockets 33 are fixedly installed at the bottom of each protruding plate 32. The bottoms of the two sockets 33 extend into the corresponding grooves 31, thus forming a horizontal limit, preventing horizontal displacement between the lower box 1 and the upper box 2. Positioning grooves 34 are formed on the sides of the two sockets 33 that are far apart from each other. Crossbars 35 are fixedly installed on both outer walls of the lower box 1, and linkage plates 36 are slidably installed on each of the two crossbars 35. Positioning plates 37 are fixedly installed on the sides of the two linkage plates 36 that are close to each other. The ends of the two positioning plates 37 that are close to each other extend into the corresponding positioning grooves 34. By inserting the positioning plates 37 into the positioning grooves 34, the socket 33 can be limited in the vertical direction, thereby forming a tight connection between the lower housing 1 and the upper housing 2. The two positioning plates 37 are slidably connected to the corresponding connecting seats 30 to ensure the free sliding of the positioning plates 37. In addition, limiting pieces are fixedly installed on the ends of the two crossbars 35 that are far apart from each other to prevent the linkage plates 36 from detaching from the crossbars 35. Springs are sleeved on the two crossbars 35. The ends of the two springs that are close to each other are fixedly connected to the lower housing 1, while the ends that are far apart from each other are fixedly connected to the corresponding linkage plates 36. The spring force allows the positioning plates 37 to be tightly inserted into the positioning grooves 34.

[0052] like Figure 12 As shown, motor six is ​​fixedly installed on both outer walls of the lower housing 1. Toothed gears are fixedly fitted on the output shafts of the two motor sixes. Toothed racks are fixedly installed on the bottom of the two linkage plates 36. The two toothed racks are adapted to the corresponding toothed gears. The two are initially separated. When the motor six is ​​started, the toothed gears and toothed racks mesh, thereby automatically driving the linkage plate 36 and the positioning plate 37 horizontally. Finally, the positioning plate 37 is taken out of the positioning groove 34, which makes it convenient for people to lift the upper housing 2.

[0053] In this embodiment

[0054] When it is necessary to quickly disassemble the lower housing 1 and the upper housing 2 to facilitate the inspection and maintenance of the internal components, the output shafts of the two motors 6 can be started and rotated slowly. The output shafts of the two motors 6 will drive their respective toothed gears to rotate slowly. When the teeth on the two toothed gears contact the teeth on the corresponding toothed racks, they will mesh with each other, thus moving the two toothed racks in a direction away from each other. At the same time, the two positioning plates 37 will also be driven until the two positioning plates 37 are pulled out of their respective positioning slots 34. Then, the motors 6 are turned off, and the upper housing 2 is lifted directly, so that the two sockets 33 are moved out of their corresponding slots 31. At this time, the two springs are in a stretched state, and the lower housing 1 and the upper housing 2 are completely separated. Then, the internal components can be inspected and maintained.

[0055] After the inspection and maintenance are completed, when it is necessary to reinstall the lower housing 1 and the upper housing 2, first insert the two sockets 33 on the upper housing 2 into the corresponding slots 31. Then, turn on the motor 6 again, and the toothed gear will continue to rotate. When the teeth on the toothed gear separate from the teeth on the toothed rack, the stretched spring will start to rebound, thereby bringing the two positioning plates 37 into the corresponding positioning slots 34. Then turn off the motor 6. This completes the installation between the lower housing 1 and the upper housing 2.

[0056] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A system for recycling and reusing wastewater and slurry from a concrete mixer truck, comprising a lower tank and an upper tank, wherein a connecting frame is fixedly installed on the top of the upper tank, and a stirring rod is rotatably installed on the connecting frame, the bottom end of the stirring rod extending into the lower and upper tanks and rotatably connected to the upper tank, and a baffle is fixedly installed on the bottom inner wall of the lower tank, the baffle having multiple overflow holes, characterized in that... The bottom of the lower box has a shuttle opening 1, and the bottom inner wall of the lower box has a sealing plate 1. A connecting strip is fixedly installed at the bottom of the sealing plate 1. The connecting strip passes through the shuttle opening 1, and multiple unclogging rods are fixedly installed on the connecting strip. Each of the multiple unclogging rods is adapted to the corresponding overflow hole. A sealing plate 2 is fixedly installed at the bottom of the connecting strip. Both the sealing plate 1 and the sealing plate 2 are adapted to the shuttle opening 1. The top of the upper box has a shuttle opening 2, and a shovel plate is provided above the upper box. The shovel plate is adapted to the shuttle opening 2. The side of the shovel plate away from the stirring rod and the side of the baffle close to the stirring rod are on the same vertical plane. A side frame plate is fixedly installed on the top of the upper box. A box three is fixedly installed on the side of the side frame plate near the shovel plate. A screw three is rotatably installed inside the box three. A sliding plate is threaded on the screw three. A connecting box is fixedly installed at the bottom of the sliding plate. A frame is provided inside the connecting box. One side of the frame extends outside the connecting box and slides to one side of the connecting box. A sealing plate three is fixedly installed at the bottom of the frame. A sealing plug is fixedly installed at the bottom of the sealing plate three. The sealing plug is located inside the shuttle port two and the two are compatible. A motor four is fixedly installed on one outer wall of the box body three. The output shaft of the motor four is fixedly connected to one end of the screw three. A rotating shaft is rotatably installed inside the connecting box. A cam is fixedly sleeved on the rotating shaft. The protruding end of the cam abuts against the bottom inner wall of the frame. A motor five is fixedly installed on one outer wall of the connecting box. The output shaft of the motor five is fixedly connected to one end of the rotating shaft.

2. The concrete mixer truck wastewater and slurry recycling system according to claim 1, characterized in that, The lower housing is fixedly connected to the upper housing by bolts.

3. The concrete mixer truck wastewater and slurry recycling system according to claim 1, characterized in that, Both sides of the lower housing are fixedly mounted with load-bearing plates. A cylinder is fixedly mounted on the load-bearing plate near the connecting strip. The output shaft of the cylinder passes through the corresponding load-bearing plate and is fixedly mounted with a housing. The output shaft of the cylinder is slidably connected to the corresponding load-bearing plate. A screw is rotatably mounted inside the housing. A lifting plate is threaded onto the screw. The top of the lifting plate is fixedly connected to the sealing plate. A motor is fixedly mounted at the bottom of the housing. The output shaft of the motor is fixedly connected to the bottom end of the screw.

4. The concrete mixer truck wastewater and slurry recycling system according to claim 1, characterized in that, A second box is fixedly installed on the top of the upper box. A second screw is rotatably installed inside the second box. A second lifting plate is threaded onto the second screw. A connecting rod is fixedly installed at the bottom of the second lifting plate. The bottom end of the connecting rod is fixedly connected to the shovel plate. A second motor is fixedly installed on the top of the second box. The output shaft of the second motor is fixedly connected to the top end of the second screw.

5. The concrete mixer truck wastewater and slurry recycling system according to claim 1, characterized in that, The bottom of the lower box is provided with a drain port, and a flow guide is fixedly installed on the bottom of the lower box. A threaded cap is threadedly fitted on the bottom of the flow guide. A motor is fixedly installed on the top of the connecting frame, and the output shaft of the motor is fixedly connected to the top of the stirring rod.

6. The concrete mixer truck wastewater and slurry recycling system according to claim 1, characterized in that, The lower and upper housings are interlocked. Connecting seats are fixedly installed on both outer walls of the lower housing, and the top of each connecting seat has a groove. Protruding plates are fixedly installed on both outer walls of the upper housing, and sockets are fixedly installed on the bottom of each protruding plate. The bottom of each socket extends into the corresponding groove, and positioning grooves are formed on the side of each socket that is far apart from each other. Crossbars are fixedly installed on both outer walls of the lower housing, and linkage plates are slidably installed on each crossbar. Positioning plates are fixedly installed on the side of each linkage plate that is close to each other, and the ends of each positioning plate that are close to each other extend into the corresponding positioning grooves. Both positioning plates are slidably connected to the corresponding connecting seats.

7. The concrete mixer truck wastewater and slurry recycling system according to claim 6, characterized in that, Limiting plates are fixedly installed at the ends of the two crossbars that are far apart from each other. Springs are sleeved on the two crossbars. The ends of the two springs that are close to each other are fixedly connected to the lower housing. The ends of the two springs that are far apart from each other are fixedly connected to the corresponding linkage plates.

8. The concrete mixer truck wastewater and slurry recycling system according to claim 7, characterized in that, Motor 6 is fixedly installed on both outer walls of the lower housing. A toothed gear is fixedly sleeved on the output shaft of each of the two motors 6. A toothed rack is fixedly installed on the bottom of each of the two linkage plates. The two toothed racks are adapted to and separate from the corresponding toothed gears.

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