A mixer truck cleaning wastewater recycling device and a method of using the same

Abstract

The application relates to a mixer truck cleaning wastewater recycling device and a use method thereof, and relates to the technical field of wastewater treatment. The device comprises a sand-stone separator, a cyclone, a clean water tank, a first wastewater tank and a second wastewater tank. The sand-stone separator is used for separating sand-stone from water slurry in wastewater. The sand-stone separator is connected with the cyclone through a flow guide pipe. The cyclone is used for separating water from the water slurry. The cyclone is connected with the clean water tank through a water inlet pipe. The clean water tank is used for receiving water from the cyclone. The clean water tank is connected with the first wastewater tank through a water outlet pipe. The first wastewater tank and the second wastewater tank are connected through a connecting pipe. The application has the effects of efficiently separating sand-stone and water slurry in wastewater and realizing wastewater recycling.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment, and in particular to a device for recycling and reusing wastewater from mixer truck cleaning and its usage method. Background Technology

[0002] Concrete mixer trucks are specialized trucks used to transport concrete for construction. These trucks are equipped with a cylindrical mixing drum to carry the mixed concrete. The mixing drum is kept rotating throughout the transportation process to prevent the concrete from hardening. After delivery, the inside of the mixing drum is usually rinsed with water to prevent hardened concrete from taking up space.

[0003] However, the large amount of wastewater generated during the washing of mixer trucks in the production process contains impurities such as sand and gravel, making it difficult to recycle and reuse. This not only pollutes the environment but also wastes precious water resources, so improvements are needed. Summary of the Invention

[0004] To address the problem of water waste caused by excessive impurities in concrete mixer truck cleaning wastewater, which makes it difficult to recycle and thus wastes water resources, this application provides a device for recycling concrete mixer truck cleaning wastewater and its usage method.

[0005] Firstly, the technical solution of the device for recycling and reusing wastewater from concrete mixer truck cleaning provided in this application is as follows: A device for recycling and reusing wastewater from concrete mixer truck cleaning includes a sand separator, a hydrocyclone, a clean water tank, a first wastewater tank, and a second wastewater tank. The sand separator is used to separate sand and gravel from the slurry in the wastewater. The sand separator is connected to the hydrocyclone through a guide pipe. The hydrocyclone is used to separate water from the slurry. The hydrocyclone is connected to the clean water tank through an inlet pipe. The clean water tank is used to collect water from the hydrocyclone. The clean water tank is connected to the first wastewater tank through an outlet pipe. The first wastewater tank and the second wastewater tank are connected by a connecting pipe.

[0006] By adopting the above technical solution, during use, the wastewater from cleaning the mixer truck is fed into the sand and gravel separator to separate the sand and gravel from the slurry. The separated slurry then flows through a guide pipe into a hydrocyclone. Activating the hydrocyclone further separates the water from the slurry, which then flows into the inlet pipe and eventually into the clean water tank. The first and second wastewater tanks collect wastewater from the construction site. Clean water from the clean water tank is transported through an outlet pipe to the first wastewater tank for mixing, and then through a connecting pipe to the second wastewater tank for further mixing before use. The sand and gravel separator and hydrocyclone achieve efficient separation of sand and gravel from the wastewater, while the combined use of the clean water tank with the first and second wastewater tanks enables wastewater recycling.

[0007] Optionally, the clean water tank is equipped with a filter plate, the circumferential sidewall of the filter plate is attached to the inner sidewall of the clean water tank, the filter plate divides the clean water tank into a lower sewage area and an upper clean water area, the inlet pipe is connected to the sewage area, and the outlet pipe is connected to the clean water area.

[0008] By adopting the above technical solution, when water in the wastewater flows into the clean water tank through the inlet pipe, the water enters the sewage area below the filter plate. When the liquid level is higher than the filter plate, impurities in the water cannot reach the top of the filter plate through the pores on the filter plate. That is, the water in the clean water area above the filter plate is relatively clean, so that the water entering the first wastewater tank through the outlet pipe in the clean water tank is less likely to have residual impurities.

[0009] Optionally, the bottom of the clean water tank is provided with a movable plate, which is located in the sewage area. The circumferential sidewall of the movable plate is attached to the inner wall of the clean water tank. A movable rod is rotatably connected to the bottom wall of the movable plate. The movable rod passes vertically through the bottom wall of the clean water tank and is threadedly connected to the clean water tank.

[0010] By adopting the above technical solution, after the water outlet pipe draws water from the clean water tank into the first wastewater tank, the water level in the clean water tank continuously decreases until it reaches below the filter plate. This causes the moving rod to rotate. Because the moving rod is threadedly connected to the clean water tank, it changes the length of the inserted clean water tank, thereby moving the moving plate up and down, making the height of the moving plate adjustable. When the moving plate moves upward, the water in the clean water tank is always above the moving plate, causing the water to move until it submerges the filter plate, ensuring the water outlet pipe can still draw water and better adapt to changes in water volume.

[0011] Optionally, a sealing plate is slidably connected to the inner wall of the clean water tank. The sealing plate can block the end of the water inlet pipe near the clean water tank, and the movable plate can abut against the top of the sealing plate to drive the sealing plate to move upward.

[0012] By adopting the above technical solution, when the moving plate moves up to the water inlet pipe, the top of the sealing plate overlaps with the moving plate. As the moving plate continues to move upward, it drives the sealing plate upward simultaneously to block the water inlet pipe, ensuring that the lower part of the moving plate is not connected to the water inlet pipe. This means that the water in the clean water tank only exists above the moving plate. Simultaneously, because the sealing plate overlaps the moving plate, it acts as a constraint, preventing the moving plate from completely passing over the water inlet pipe. This avoids impurities on the moving plate being squeezed onto the filter plate, thus preventing water from passing through the filter plate. When the moving plate moves downward, the sealing plate moves under gravity, automatically opening the water inlet pipe.

[0013] Optionally, the movable plate is provided with a sewage discharge mechanism, which includes a receiving component and a conveying component. The movable plate has a cavity, and the receiving component is connected to the inner wall of the cavity. The receiving component is used to receive impurities in the sewage area. The conveying component is located in the cavity and below the receiving component. The conveying component can receive impurities in the receiving component. The bottom of the movable plate is provided with a storage cylinder, which communicates with the cavity. The conveying component is used to convey impurities into the storage cylinder.

[0014] By adopting the above technical solution, the water in the clean water tank is located above the moving plate, and the impurities in the water are left in the sewage area. The impurities settle on the moving plate, that is, in the receiving component. During cleaning, the receiving component is moved to pour the impurities into the conveying component below. Then, the conveying component is started to transport the impurities towards the collection cylinder until the impurities are collected in the collection cylinder, thus completing the cleaning of impurities on the moving plate. Afterward, the clean receiving component is reset to receive new impurities, avoiding the accumulation of too many impurities in the sewage area, which would affect the addition of water.

[0015] Optionally, the receiving assembly includes an arc plate and two flipping plates. The arc plate is arranged along the length of the moving plate, and the end of the arc plate is rotatably connected to the inner wall of the cavity. A flipping motor is provided inside the moving plate, and the output end of the flipping motor is connected to the end of the arc plate to drive the arc plate to rotate. The flipping plates are arranged horizontally and located below the arc plate. The flipping plates are arranged along the length of the moving plate, and the two flipping plates can be spliced ​​together to separate the cavity. The ends of the two flipping plates are connected by a connecting rod. The side of the flipping plate away from the central axis of the moving plate is rotatably connected to the connecting rod. A driving assembly is provided inside the moving plate, and the driving assembly is connected to the flipping plate to drive the flipping plate to rotate. The conveying assembly is located below the receiving plate.

[0016] By adopting the above technical solution, in the initial state, the arc plate is completely located in the cavity with its opening facing upwards. At this time, impurities in the sewage area settle to the moving plate, that is, inside the arc plate, and the arc plate is in a concave state to receive more impurities. During cleaning, the flipping motor is started, driving the arc plate to rotate 180°, so that the opening of the arc plate faces downwards, that is, in an arched state, and the impurities that were originally in the arc plate are completely poured into the cavity.

[0017] Initially, the two flipping plates are horizontally positioned and abut against each other, forming a flat plate that rests horizontally within the cavity. This ensures that all impurities entering the cavity fall onto the flipping plates. When the curved plate flips, the impurities are overturned, and some water also enters the cavity. The flipping plates, by separating the cavity, hold back the impurities and water, preventing water from continuously flooding the cavity during plate rotation. This prevents the storage cylinder from becoming completely filled with water, allowing for the storage of more impurities and ensuring better utilization of the storage cylinder's space.

[0018] When the arc plate rotates to the upward arched state, the top opening of the cavity is sealed by the arc plate. Then, the drive component is activated, causing the two flip plates to flip simultaneously. That is, the flip plates rotate on the connecting rod with the side of the flip plate and the cavity as the axis, so that the side of the two flip plates that are in contact gradually separates, realizing the opening of the flip plates. The impurities and moisture that were originally restricted above the flip plates fall from between the two flip plates to the conveying component, which drives them to be collected into the collection cylinder.

[0019] Optionally, the arc plate has several through holes, and a mounting rod passes through each through hole. The mounting rod can move along the length of the mounting rod on the through holes. A limiting block is provided at the end of the mounting rod away from the flip motor. The limiting block can abut against the side wall of the arc plate away from the flip motor to block the through holes. A limiting rod is fixed at the end of the mounting rod near the flip motor. The limiting rod can abut against the side wall of the arc plate near the flip motor. A cylinder is provided inside the moving plate. The cylinder is connected to the connecting rod to drive the connecting rod to move up and down.

[0020] By adopting the above technical solution, in the initial state, the arc plate faces downward, supporting impurities and moisture. At this time, the mounting rod moves downward under the action of gravity, so that the limiting rod abuts against the inner wall of the arc plate. The limiting rod cannot block the entire through hole, allowing the moisture in the arc plate to enter the cavity through the gap between the limiting rod and the inner wall of the through hole, and then fall onto the flipping plate. The flipping plate restricts the moisture from reaching the conveying component.

[0021] When the arc plate rotates and faces upward, impurities and moisture are located in the arc plate but fall onto the flip plate. At this time, the positions of the limiting block and the limiting rod are reversed, that is, the limiting block is located above the limiting rod, and the mounting rod moves down, so that the limiting rod abuts against the outer wall of the arc plate, thereby blocking the mounting hole and preventing the interior of the arc plate from communicating with the clean water tank.

[0022] Next, the cylinder is activated, driving the connecting rod upwards. This lifts impurities and water towards the arc plate, allowing the water to reach the through-hole. The water then exerts pressure on the limiting block, causing it to move away from the arc plate, separating it from the plate. At this point, the through-hole is open, allowing water from the arc plate to flow into the clean water tank. The tilting plate, carrying water, moves upwards, creating a pushing force that propels the water through the through-hole. This impact force causes the water to spray upwards onto the filter plate, cleaning it and preventing impurities from clogging the pores and hindering water flow.

[0023] When the limiting block separates from the arc plate, the mounting rod, carrying the limiting rod, approaches the arc plate and abuts against its inner wall. At this point, the limiting rod restricts the mounting rod from moving further, meaning the limiting block will not completely detach from the arc plate. When the flipping plate stops moving, impurities and moisture lose their resistance, causing the limiting block to lose its compressive force. Under the influence of water pressure and gravity above the arc plate, the limiting block reattaches to the arc plate, sealing the through-hole and preventing water from outside the arc plate from entering through it. Therefore, when the flipping plate is opened, water will not continuously enter the cavity and fill the storage cylinder.

[0024] Optionally, the drive assembly includes a drive gear and a drive rack. The drive rack is vertically arranged and fixed on the moving plate. The drive gear is fixed to the end of the flip plate and located on the side of the flip plate away from the central axis of the moving plate. The drive gear is rotatably connected to the connecting rod and can mesh with the drive rack.

[0025] By adopting the above technical solution, when the cylinder drives the connecting rod upward until it reaches the drive rack, the drive gear meshes with the drive rack, causing the drive gear to move along the drive rack and rotate. This, in turn, causes the flipping plate to flip and open. Simultaneously, when the flipping plate reaches the drive rack, both sides of the arc plate abut against the two flipping plates, meaning the flipping plate supports the arc plate to prevent it from rotating, thus improving the stability of the arc plate covering the cavity.

[0026] Optionally, the conveying assembly includes a conveying track and a conveying screw belt. The conveying track is arranged along the length of the moving plate. The side wall of the flipping plate near the central axis of the moving plate can abut against the conveying track. The conveying screw belt is located in the conveying track and is arranged along the length of the conveying track. A rotating motor is provided inside the moving plate. The output end of the rotating motor is coaxially fixed with one end of the conveying screw belt to drive the conveying screw belt to rotate. The storage cylinder is located at the end of the conveying screw belt.

[0027] By adopting the above technical solution, when the flip plate is opened, the two flip plates, which were originally attached together, simultaneously overlap on the conveyor track. At this time, the flip plate is tilted, which guides the impurities and moisture, making it easier for the impurities and moisture to fall into the conveyor track. Then, the rotating motor is started to drive the conveyor belt to rotate, thereby conveying the impurities into the storage cylinder.

[0028] On the other hand, the method of using the mixer truck cleaning wastewater recycling device provided in this application adopts the following technical solution: S1. First, separate the sand and gravel from the wastewater, then separate the remaining water slurry, and finally pass the separated water into the clean water tank. S2. Use a filter plate to filter the water in the clean water tank; S3. Then, the impurities under the filter plate are automatically cleaned by the sewage discharge mechanism. S4. The water in the clean water tank above the filter plate is mixed with the wastewater collected on site for use.

[0029] In summary, this application includes at least one of the following beneficial effects: 1. When the tilting plate is laid horizontally, it supports the impurities and moisture poured into the cavity by the arc plate, preventing moisture from continuously entering the cavity and filling the collection cylinder. When the tilting plate is tilted, it opens, allowing the moisture and impurities in the cavity to reach the conveying component and be sent to the collection cylinder for storage. At the same time, the tilted state of the tilting plate after rotation can overlap on the conveying track, serving as a guide and facilitating the delivery of moisture and impurities to the conveying screw belt. 2. Start the cylinder to drive the connecting rod to move the horizontally arranged tilting plate upward, which lifts impurities and water towards the arc plate. This allows the water to reach the through hole and apply pressure to the limiting block until the limiting rod abuts against the arc plate, at which point the limiting block separates from the arc plate. At this point, the through hole is open. Due to the obstruction of the limiting rod, only water can pass through the through hole and enter the sewage area. During this process, the water is subjected to pressure, which gives the water an impact force as it passes through the through hole, causing the water to flow upward and spray onto the filter plate, cleaning the filter plate and preventing the pores on the filter plate from being blocked by impurities, thus affecting the passage of water. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the mixer truck cleaning wastewater recycling device according to an embodiment of this application; Figure 2 This is a cross-sectional view of the clear water tank. Figure 3 This is a schematic diagram of the structure inside the movable plate; Figure 4 for Figure 2 Enlarged view of point A in the middle; Figure 5 This is a structural diagram of the receiving component and the conveying component.

[0031] In the diagram: 10. Sand and gravel separator; 11. Guide pipe; 20. Hydrocyclone; 21. Inlet pipe; 211. Sealing plate; 30. Clean water tank; 31. Outlet pipe; 32. Wastewater zone; 33. Clean water zone; 40. Filter plate; 50. Moving plate; 51. Cavity; 52. Moving rod; 53. Collection cylinder; 60. Sewage discharge mechanism; 61. Receiving component; 611. Arc plate; 6111. Tilting motor; 61 12. Through hole; 612. Tilting plate; 6121. Connecting rod; 6122. Cylinder; 62. Conveying assembly; 621. Conveying track; 622. Conveying ribbon; 6221. Rotating motor; 70. Drive assembly; 71. Drive gear; 72. Drive rack; 80. Mounting rod; 81. Limiting block; 82. Limiting rod; 90. First wastewater tank; 91. Connecting pipe; 120. Second wastewater tank. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0033] This application discloses a device for recycling and reusing wastewater from mixer truck cleaning. (Refer to...) Figure 1 The equipment for recycling and reusing wastewater from washing concrete mixer trucks includes a sand separator 10, a hydrocyclone 20, a clean water tank 30, a first wastewater tank 90, and a second wastewater tank 120 arranged in sequence. In use, the wastewater from washing the concrete mixer truck is fed into the sand separator 10 to separate the sand and gravel from the slurry. Then, the separated slurry flows into the hydrocyclone 20 through the guide pipe 11. The hydrocyclone 20 is started to separate the water from the slurry. The water then flows into the inlet pipe 21 and reaches the clean water tank 30 along the inlet pipe 21.

[0034] The first wastewater tank 90 and the second wastewater tank 120 are used to collect wastewater from the construction site. Clean water in the clear water tank 30 is transported through the outlet pipe 31 to the first wastewater tank 90 for mixing, and then transported through the connecting pipe 91 on the first wastewater tank 90 to the second wastewater tank 120 for further mixing before use. The sand and gravel separator 10 and the hydrocyclone 20 efficiently separate sand, gravel, and slurry from the wastewater. The combined use of the clear water tank 30 with the first wastewater tank 90 and the second wastewater tank 120 achieves the effect of wastewater recycling.

[0035] Reference Figure 1 and Figure 2The clean water tank 30 is equipped with a filter plate 40. The circumferential sidewall of the filter plate 40 is fitted to the inner sidewall of the clean water tank 30. The filter plate 40 can be made of multi-layer composite material, which has good filtration effect and long service life. For example, sealing gaskets are provided on both sides of the filter plate 40 to ensure that water does not leak from the gaps.

[0036] Reference Figure 1 and Figure 2 The filter plate 40 divides the clean water tank 30 into a lower sewage zone 32 and an upper clean water zone 33. The inlet pipe 21 is connected to the sewage zone 32, and the outlet pipe 31 is connected to the clean water zone 33. A movable plate 50 is provided at the bottom of the clean water tank 30. The movable plate 50 is located in the sewage zone 32. The circumferential sidewall of the movable plate 50 is attached to the inner wall of the clean water tank 30. A movable rod 52 is rotatably connected to the bottom wall of the movable plate 50. The movable rod 52 passes vertically through the bottom wall of the clean water tank 30 and is threadedly connected to the clean water tank 30.

[0037] When water from the wastewater flows into the clean water tank 30 through the inlet pipe 21, the water enters the sewage zone 32 below the filter plate 40. When the liquid level is higher than the filter plate 40, impurities in the water cannot reach the top of the filter plate 40 through the pores on the filter plate 40. That is, the water in the clean water zone 33 above the filter plate 40 is relatively clean, so that the water entering the first wastewater tank 90 through the outlet pipe 31 in the clean water tank 30 is less likely to have residual impurities.

[0038] After the water outlet pipe 31 pumps water from the clean water tank 30 into the first wastewater tank 90, the water level in the clean water tank 30 continuously decreases until the liquid level in the clean water tank 30 reaches below the filter plate 40. This causes the moving rod 52 to rotate. Because the moving rod 52 is threadedly connected to the clean water tank 30, the moving rod 52 changes the length of the inserted clean water tank 30, thereby driving the moving plate 50 to move up and down, making the height of the moving plate 50 adjustable. When the moving plate 50 moves upward, the water in the clean water tank 30 is all above the moving plate 50, thus driving the water to move until the water can submerge the filter plate 40, allowing the water outlet pipe 31 to still pump water, thus better adapting to changes in water volume.

[0039] Reference Figure 2When the moving plate 50 moves upward past the inlet pipe 21, a sealing plate 211 is slidably connected to the inner wall of the clean water tank 30 to prevent water from the inlet pipe 21 from entering below the moving plate 50. The sealing plate 211 can block the end of the inlet pipe 21 near the clean water tank 30. When the moving plate 50 moves upward to the inlet pipe 21, the top of the sealing plate 211 overlaps the moving plate 50. As the moving plate 50 continues to move upward, it can drive the sealing plate 211 to move upward synchronously to block the inlet pipe 21, so that the bottom of the moving plate 50 will not be connected to the inlet pipe 21, thus ensuring that the water in the clean water tank 30 only exists above the moving plate 50. At the same time, because the sealing plate 211 overlaps the moving plate 50, it acts as a restriction, preventing the moving plate 50 from completely passing past the inlet pipe 21, thereby preventing impurities on the moving plate 50 from being squeezed onto the filter plate 40 and affecting the passage of water through the filter plate 40. When the movable plate 50 moves down, the sealing plate 211 moves under the action of gravity, thereby causing the water inlet pipe 21 to open automatically.

[0040] Reference Figure 2 and Figure 3 After long-term use, too many impurities accumulate in the sewage area 32. In order to achieve automatic cleaning of impurities, a sewage discharge mechanism 60 is provided on the moving plate 50. The sewage discharge mechanism 60 includes a receiving component 61 and a conveying component 62. The moving plate 50 has a cavity 51. The receiving component 61 is connected to the inner wall of the cavity 51. The receiving component 61 is used to receive impurities in the sewage area 32. The conveying component 62 is located in the cavity 51 and below the receiving component 61. The conveying component 62 can receive impurities in the receiving component 61. The bottom of the moving plate 50 is provided with a collection cylinder 53. The collection cylinder 53 passes through the bottom wall of the moving plate 50 and is threadedly connected to the bottom wall of the moving plate 50. The collection cylinder 53 is connected to the cavity 51. The conveying component 62 is used to convey impurities to the collection cylinder 53.

[0041] Reference Figure 2 and Figure 3 The receiving component 61 includes an arc plate 611 and two flipping plates 612. The arc plate 611 is arranged along the length of the moving plate 50, and its end is rotatably connected to the inner wall of the cavity 51. A flipping motor 6111 is embedded in the moving plate 50, and the output end of the flipping motor 6111 is connected to the end of the arc plate 611 to drive the arc plate 611 to rotate. To ensure that the flipping plates 612 can be horizontally spliced ​​together, rubber pads are glued to the side walls of the two flipping plates 612 that are close to each other. Magnets are embedded in the rubber pads. The rubber pads make the two flipping plates 612 fit more tightly, and the magnets inside the two rubber pads attract each other, which facilitates the quick and accurate horizontal splicing of the two flipping plates 612.

[0042] In the initial state, the arc plate 611 is completely located in the cavity 51 with its opening facing upwards. At this time, impurities in the sewage zone 32 settle to the moving plate 50, which is located inside the arc plate 611. The arc plate 611 is in a concave state to receive more impurities. During cleaning, the tilting motor 6111 is started, driving the arc plate 611 to rotate 180°, so that the opening of the arc plate 611 faces downwards, i.e., it is in an arched state, and the impurities that were originally in the arc plate 611 are completely poured into the cavity 51.

[0043] Reference Figure 2 and Figure 3 The flip plate 612 is horizontally arranged and located below the arc plate 611. The flip plate 612 is arranged along the length of the moving plate 50. Two flip plates 612 can be spliced ​​together to separate the cavity 51. The ends of the two flip plates 612 are connected by a connecting rod 6121. A cylinder 6122 is embedded in the moving plate 50. The cylinder 6122 is connected to the connecting rod 6121 and is used to drive the connecting rod 6121 to move up and down.

[0044] Reference Figure 2 and Figure 3 The side of the flip plate 612 away from the central axis of the moving plate 50 is rotatably connected to the connecting rod 6121. The moving plate 50 is provided with a drive assembly 70, which is connected to the flip plate 612 and is used to drive the flip plate 612 to rotate. The conveying assembly 62 is located below the receiving plate.

[0045] In the initial state, the two flipping plates 612 are horizontally positioned and abut against each other, forming a flat plate that spans the cavity 51, ensuring that all impurities entering the cavity 51 fall onto the flipping plates 612. When the arc plate 611 flips, the impurities are overturned, and some water also enters the cavity 51. The flipping plates 612, by separating the cavity 51, support the impurities and water entering the cavity 51, preventing water from continuously flowing into the cavity 51 during the rotation of the arc plate 611. This prevents the storage cylinder 53 from becoming too full of water, allowing for the storage of more impurities and ensuring better utilization of the space in the storage cylinder 53.

[0046] When the arc plate 611 rotates to the upward arched state, the top opening of the cavity 51 is sealed by the arc plate 611. Then, the drive assembly 70 is activated, causing the two flip plates 612 to flip simultaneously. That is, the flip plates 612 rotate on the connecting rod 6121 with the side of the flip plate 612 that abuts against the cavity 51 as the axis, so that the side of the two flip plates 612 that is in contact gradually separates, realizing the opening of the flip plates 612. Impurities and moisture that were originally restricted above the flip plates 612 fall from between the two flip plates 612 to the conveying assembly 62, which drives them to be collected into the collection cylinder 53. A clearance hole is provided through the bottom wall of the clean water tank 30, through which the collection cylinder 53 can pass. Then, by rotating the collection cylinder 53, the collection cylinder 53 can be disassembled for cleaning.

[0047] Reference Figure 2 and Figure 4 A number of through holes 6112 are provided through the arc plate 611. The cylinder 6122 enables the flip plate 612 to move up and down, driving water to flow out from the through holes 6112, thereby squeezing out the water in the arc plate 611 and reducing the amount of water entering the collection cylinder 53, which affects the collection of impurities.

[0048] Reference Figure 4 To prevent water from the clean water tank 30 from flowing back into the arc plate 611 through the through hole 6112, an installation rod 80 is inserted through the through hole 6112. The installation rod 80 can move along the length of the through hole 6112. A limiting block 81 is provided at the end of the installation rod 80 away from the flip motor 6111. The limiting block 81 can abut against the side wall of the arc plate 611 away from the flip motor 6111 to block the through hole 6112. A limiting rod 82 is fixed at the end of the installation rod 80 near the central axis of the arc plate 611. The limiting rod 82 can abut against the side wall of the arc plate 611 near the flip motor 6111.

[0049] In the initial state, the arc plate 611 faces downward, supporting impurities and moisture. At this time, the mounting rod 80 moves downward under the action of gravity, causing the limiting rod 82 to abut against the inner wall of the arc plate 611. The limiting rod 82 cannot block the entire through hole 6112, allowing the moisture in the arc plate 611 to enter the cavity 51 through the gap between the limiting rod 82 and the inner wall of the through hole 6112, and then fall onto the flip plate 612. The flip plate 612 restricts the moisture from reaching the conveying component 62.

[0050] When the arc plate 611 rotates and faces upward, impurities and moisture are located in the arc plate 611 but fall onto the flip plate 612. At this time, the positions of the limiting block 81 and the limiting rod 82 are reversed, that is, the limiting block 81 is located above the limiting rod 82, and the mounting rod 80 moves down, so that the limiting rod 82 abuts against the outer wall of the arc plate 611, thereby blocking the mounting hole and preventing the interior of the arc plate 611 from communicating with the clean water tank 30.

[0051] Reference Figure 2 and Figure 4 Next, cylinder 6122 is activated, driving connecting rod 6121 upwards. This lifts impurities and water towards arc plate 611, allowing water to reach through hole 6112. The water then exerts pressure on limiting block 81, causing it to move away from arc plate 611, separating it from the arc plate. At this point, through hole 6112 is open, allowing water in arc plate 611 to flow into clean water tank 30. Meanwhile, flip plate 612, carrying water, moves upwards, creating a pushing force that impacts the water as it passes through through hole 6112. This causes the water to spray upwards onto filter plate 40, cleaning it and preventing impurities from clogging the pores and hindering water flow.

[0052] When the limiting block 81 separates from the arc plate 611, the mounting rod 80, carrying the limiting rod 82, approaches the arc plate 611 and abuts against the inner wall of the arc plate 611. At this time, the limiting rod 82 restricts the mounting rod 80 from continuing to move, meaning that the limiting block 81 will not completely detach from the arc plate 611. When the flip plate 612 stops moving, impurities and moisture lose their pushing force, causing the limiting block 81 to lose its squeezing force. Under the action of water pressure and gravity above the arc plate 611, the limiting block 81 reattaches to the arc plate 611 to seal the through hole 6112, preventing water from outside the arc plate 611 from entering the arc plate 611 through the through hole 6112. Therefore, when the flip plate 612 is opened, water will not continuously enter the cavity 51 and fill the space of the storage cylinder 53.

[0053] Reference Figure 3 The drive assembly 70 includes a drive gear 71 and a drive rack 72. The drive rack 72 is vertically arranged and fixed on the moving plate 50. The drive gear 71 is fixed to the end of the flip plate 612 and located on the side of the flip plate 612 away from the central axis of the moving plate 50. The drive gear 71 is rotatably connected to the connecting rod 6121 and can mesh with the drive rack 72.

[0054] When cylinder 6122 drives connecting rod 6121 upward until it reaches drive rack 72, drive gear 71 meshes with drive rack 72, causing drive gear 71 to move along drive rack 72, thus rotating drive gear 71. This causes flip plate 612 to flip, opening flip plate 612. Simultaneously, when flip plate 612 reaches drive rack 72, the two sides of arc plate 611 abut against the two flip plates 612 respectively. That is, flip plate 612 supports arc plate 611 to prevent it from rotating, improving the stability of arc plate 611 covering cavity 51.

[0055] Reference Figure 3 and Figure 5 The conveying assembly 62 includes a conveying track 621 and a conveying screw belt 622. The conveying track 621 is arranged along the length of the moving plate 50. The side wall of the flipping plate 612 near the central axis of the moving plate 50 can abut against the conveying track 621. The conveying screw belt 622 is located in the conveying track 621 and is arranged along the length of the conveying track 621. A rotating motor 6221 is provided inside the moving plate 50. The output end of the rotating motor 6221 is coaxially fixed with one end of the conveying screw belt 622 and is used to drive the conveying screw belt 622 to rotate. The storage cylinder 53 is located at the end of the conveying screw belt 622.

[0056] When the flip plate 612 is opened, the two flip plates 612, which were originally attached together, simultaneously overlap on the conveyor track 621. At this time, the flip plate 612 is tilted, which guides the impurities and moisture, making it easier for the impurities and moisture to fall into the conveyor track 621. Then, the rotating motor 6221 is started, which drives the conveyor belt 622 to rotate, thereby conveying the impurities into the storage cylinder 53 for storage.

[0057] The implementation principle of the concrete mixer truck cleaning wastewater recycling device in this embodiment is as follows: Through the effective combination of the sand separator 10 and the hydrocyclone 20, efficient separation of sand and slurry in the concrete mixer truck cleaning wastewater is achieved, greatly improving the efficiency and quality of wastewater treatment. The design of the filter plate 40 and the sewage discharge mechanism 60 within the clean water tank 30 further enhances the precision and reliability of wastewater treatment. This application also discloses a method for using a device for recycling and reusing wastewater from mixer truck cleaning, including the following steps: S1. First, separate the sand and gravel from the wastewater, then separate the remaining water slurry, and finally pass the separated water into the clean water tank 30. S2. Use filter plate 40 to filter the water in clean water tank 30; S3. Then, the sewage discharge mechanism 60 automatically cleans the impurities under the filter plate 40. S4. The water in the clean water tank 30 located above the filter plate 40 is mixed with the wastewater collected on site for use.

[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for recycling and reusing wastewater from concrete mixer truck cleaning, characterized in that, The system includes a sand separator (10), a hydrocyclone (20), a clean water tank (30), a first wastewater tank (90), and a second wastewater tank (120). The sand separator (10) is used to separate sand and gravel from water slurry in wastewater. The sand separator (10) is connected to the hydrocyclone (20) through a guide pipe (11). The hydrocyclone (20) is used to separate water from the water slurry. The hydrocyclone (20) is connected to the clean water tank (30) through an inlet pipe (21). The clean water tank (30) is used to receive water from the hydrocyclone (20). The clean water tank (30) is connected to the first wastewater tank (90) through an outlet pipe (31). The first wastewater tank (90) and the second wastewater tank (120) are connected through a connecting pipe (91). The clean water tank (30) is equipped with a filter plate (40). The circumferential sidewall of the filter plate (40) is attached to the inner sidewall of the clean water tank (30). The filter plate (40) divides the clean water tank (30) into a lower sewage area (32) and an upper clean water area (33). The inlet pipe (21) is connected to the sewage area (32), and the outlet pipe (31) is connected to the clean water area (33). The bottom of the clean water tank (30) is provided with a movable plate (50), which is located in the sewage area (32). The circumferential sidewall of the movable plate (50) is attached to the inner wall of the clean water tank (30). A movable rod (52) is rotatably connected to the bottom wall of the movable plate (50). The movable rod (52) is vertically inserted through the bottom wall of the clean water tank (30) and is threadedly connected to the clean water tank (30). The movable plate (50) is provided with a sewage discharge mechanism (60), which includes a receiving component (61) and a conveying component (62). The movable plate (50) is provided with a cavity (51). The receiving component (61) is connected to the inner wall of the cavity (51). The receiving component (61) is used to receive impurities in the sewage area (32). The conveying component (62) is located in the cavity (51) and below the receiving component (61). The conveying component (62) can receive impurities in the receiving component (61). The bottom of the movable plate (50) is provided with a storage cylinder (53). The storage cylinder (53) is connected to the cavity (51). The conveying component (62) is used to convey impurities to the storage cylinder (53). The receiving component (61) includes an arc plate (611) and two flipping plates (612). The arc plate (611) is arranged along the length of the moving plate (50). The end of the arc plate (611) is rotatably connected to the inner wall of the cavity (51). A flipping motor (6111) is provided inside the moving plate (50). The output end of the flipping motor (6111) is connected to the end of the arc plate (611) to drive the arc plate (611) to rotate. The flipping plates (612) are arranged horizontally and located below the arc plate (611). The flip plate (612) is arranged along the length of the moving plate (50). Two flip plates (612) can be spliced ​​together to separate the cavity (51). The ends of the two flip plates (612) are connected by a connecting rod (6121). The side of the flip plate (612) away from the central axis of the moving plate (50) is rotatably connected to the connecting rod (6121). The moving plate (50) is provided with a driving assembly (70). The driving assembly (70) is connected to the flip plate (612) and is used to drive the flip plate (612) to rotate. The arc plate (611) has several through holes (6112) through it. A mounting rod (80) passes through each through hole (6112). The mounting rod (80) can move along the length of the mounting rod (80) in the through hole (6112). A limiting block (81) is provided at the end of the mounting rod (80) away from the flip motor (6111). The limiting block (81) can abut against the side wall of the arc plate (611) away from the flip motor (6111). The mounting rod (80) is used to block the through hole (6112). A limiting rod (82) is fixed on one end of the mounting rod (80) near the flip motor (6111). The limiting rod (82) can abut against the side wall of the arc plate (611) near the flip motor (6111). A cylinder (6122) is provided in the moving plate (50). The cylinder (6122) is connected to the connecting rod (6121) and is used to drive the connecting rod (6121) to move up and down.

2. The device for recycling and reusing wastewater from mixer truck cleaning according to claim 1, characterized in that, A sealing plate (211) is slidably connected to the inner wall of the clean water tank (30). The sealing plate (211) can block the end of the water inlet pipe (21) near the clean water tank (30). The moving plate (50) can abut against the top of the sealing plate (211) to drive the sealing plate (211) to move upward.

3. The device for recycling and reusing wastewater from mixer truck cleaning according to claim 1, characterized in that, The drive assembly (70) includes a drive gear (71) and a drive rack (72). The drive rack (72) is vertically arranged and fixed on the moving plate (50). The drive gear (71) is fixed to the end of the flip plate (612) and located on the side of the flip plate (612) away from the central axis of the moving plate (50). The drive gear (71) is rotatably connected to the connecting rod (6121). The drive gear (71) can mesh with the drive rack (72).

4. The device for recycling and reusing wastewater from mixer truck cleaning according to claim 1, characterized in that, The conveying assembly (62) includes a conveying track (621) and a conveying screw belt (622). The conveying track (621) is arranged along the length of the moving plate (50). The side wall of the flipping plate (612) near the central axis of the moving plate (50) can abut against the conveying track (621). The conveying screw belt (622) is located in the conveying track (621) and is arranged along the length of the conveying track (621). The moving plate (50) is provided with a rotating motor (6221). The output end of the rotating motor (6221) is coaxially fixed with one end of the conveying screw belt (622) to drive the conveying screw belt (622) to rotate. The storage cylinder (53) is located at the end of the conveying screw belt (622).

5. A method of using a mixer truck cleaning wastewater recycling device, comprising the mixer truck cleaning wastewater recycling device according to any one of claims 1-4, characterized in that, Includes the following steps: S1. First, separate the sand and gravel from the wastewater, then separate the remaining water slurry, and finally pass the separated water into the clean water tank (30). S2. Use the filter plate (40) to filter the water in the clean water tank (30); S3. Then, the impurities under the filter plate (40) are automatically cleaned by the sewage discharge mechanism (60). S4. The water in the clean water tank (30) above the filter plate (40) is mixed with the wastewater collected on site for use.

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