Concrete waste water saving and utilizing device

Abstract

The invention relates to the field of concrete wastewater utilization, in particular to a concrete wastewater saving utilization device which comprises a frame body, a sewage pipeline, an extrusion plate and a plurality of water filtering sieve plates, the sewage pipeline is connected to the end face of the frame body, the water filtering sieve plates are slidably connected to the frame body, connecting holes are formed in the end faces of the water filtering sieve plates, and the bottoms of the water filtering sieve plates are connected with a water filtering pipeline. The squeezing plate is connected to the frame body in a sliding mode, the sliding direction of the squeezing plate is parallel to the sliding direction of the water filtering sieve plates, and when the squeezing plate drives the water filtering sieve plates to slide in the direction close to the sewage pipeline, the end faces of the adjacent water filtering sieve plates abut against each other to form sealing. An inner cavity of the sewage pipeline communicates with the connecting hole. Through the arrangement of the water filtering sieve plate, the concrete wastewater separation period is shortened, the concrete wastewater separation efficiency is improved, the concrete wastewater separation input cost is reduced, water resources are recycled, water resource waste is reduced, and the concept of saving is embodied.

Description

Technical Field

[0001] This application relates to the field of concrete wastewater utilization, and in particular to a concrete wastewater conservation and utilization device. Background Technology

[0002] When concrete production and processing are completed, the concrete processing equipment needs to be cleaned to prevent the concrete from hardening and fixing on the equipment, which would affect its operation. The cleaning process generates concrete wastewater. Directly discharging this wastewater would not only damage the environment but also waste water resources. Therefore, it is necessary to recycle and reuse this concrete wastewater.

[0003] Utility model patent CN208218478U discloses a concrete wastewater recycling system, including three sedimentation tanks arranged side by side on the ground. A concrete layer is provided where the sedimentation tanks contact the soil, and the side of the concrete layer facing the sedimentation tank is curved. Adjacent sedimentation tanks are connected by concrete walls with drainage holes. The sedimentation tanks include a first sedimentation tank, a second sedimentation tank, and a third sedimentation tank, with the second sedimentation tank located between the first and third sedimentation tanks. The drainage holes include a first drainage hole located between the first and second sedimentation tanks and a second drainage hole located between the second and third sedimentation tanks, with the lowest point of the first drainage hole higher than the lowest point of the second drainage hole. A pumping pipe is installed on the third sedimentation tank to remove water.

[0004] Concrete wastewater is poured into three sedimentation tanks: a first sedimentation tank, a second sedimentation tank, and a third sedimentation tank. The concrete settles on the bottom walls of these tanks due to its own gravity. Water from the first sedimentation tank flows into the second sedimentation tank through a first drain hole, and water from the second sedimentation tank flows into the third sedimentation tank through a second drain hole. Water from the third sedimentation tank is then discharged through a drain pipe, thus separating the concrete from the water. However, the solid-liquid separation process in these three sedimentation tanks takes a long time, resulting in reduced separation efficiency and increased investment costs. Summary of the Invention

[0005] To improve the separation efficiency of concrete wastewater, this application provides a concrete wastewater conservation and utilization device.

[0006] This application provides a concrete wastewater conservation and utilization device, which adopts the following technical solution: A concrete wastewater conservation and utilization device includes a frame, a sewage pipe, an extrusion plate, and multiple filter screens. The sewage pipe is connected to the end face of the frame and is used to transport concrete wastewater. The multiple filter screens are slidably connected to the frame and are used to filter the concrete wastewater. Each filter screen has a connection hole on its end face for the concrete wastewater to pass through. A filter pipe is connected to the bottom of each filter screen for the water to be discharged after filtration. The extrusion plate is slidably connected to the frame, and the sliding direction of the extrusion plate is parallel to the sliding direction of the filter screens. When the extrusion plate drives the filter screens to slide towards the sewage pipe, the end faces of adjacent filter screens abut against each other to form a seal. The inner cavity of the sewage pipe is connected to the connection hole.

[0007] By adopting the above technical solution, when the concrete wastewater conservation and utilization device is running, the squeezing plate drives the filter screen plate to slide towards the sewage pipe, and the end faces of adjacent filter screen plates abut together to form a seal. The connecting holes on adjacent filter screen plates correspond one-to-one and are connected. At the same time, the inner cavity of the sewage pipe corresponds one-to-one with the connecting holes and is connected. The sewage in the sewage pipe enters between the end faces of adjacent filter screen plates through the connecting holes. The water in the concrete wastewater is filtered through the filter screen plate and discharged from the filter pipe. There is no need to let the concrete wastewater stand to achieve solid-liquid separation, which shortens the separation cycle of concrete wastewater, improves the separation efficiency of concrete wastewater, reduces the input cost of concrete wastewater separation, realizes the reuse of water resources, reduces the waste of water resources, and thus embodies the concept of conservation.

[0008] Optionally, each of the four corners of the two end faces of the filter screen plate is connected with an abutment block. When the end faces of adjacent filter screen plates are pressed together to form a seal, the end faces of the abutment blocks on the adjacent filter screen plates correspond to each other and are pressed together. There is a space between the end faces of the adjacent filter screen plates to accommodate concrete, and the space is connected to the connection hole.

[0009] By adopting the above technical solution, when the extrusion plate drives the filter screen plate to slide towards the sewage pipe, the end faces of adjacent filter screen plates abut together to form a seal, the abutting blocks correspond one by one and abut together, and the receiving space is located between adjacent filter screen plates. The concrete wastewater from the sewage pipe enters the receiving space through the connection hole. The water in the concrete wastewater in the receiving space is filtered through the filter screen plate and discharged from the filter pipe. The filtered concrete remains in the receiving space, and the concrete is not easy to block the connection hole, thereby improving the stability of the concrete wastewater passing through multiple filter screen plates in sequence through the connection hole.

[0010] Optionally, a slide rail is connected to the frame, and a slider is connected to the water filter screen plate, with the slider slidably connected to the end face of the slide rail.

[0011] By adopting the above technical solution, the slider is slidably connected to the slide rail, making it less likely for the filter screen plate to deviate when sliding on the frame, thereby improving the stability of the filter screen plate sliding on the frame.

[0012] Optionally, a water storage tank is connected to the frame, and the opening of the water filter pipe away from the water filter screen faces the inner cavity of the water storage tank. The water storage tank is used to store the water discharged from the water filter pipe.

[0013] By adopting the above technical solution, the pipe opening away from the filter screen is directed towards the inner cavity of the water storage tank. The water storage tank is used to store the water discharged from the filter pipe, thereby collecting the filtered water from the concrete wastewater. Water is less likely to spill out of the filter pipe, thus reducing water waste and improving the utilization of water resources.

[0014] Optionally, a guide plate is connected to the frame, with one end of the guide plate located directly below the water filter screen and the other end of the guide plate located directly above the inner cavity of the water storage tank. The guide plate guides the water filtered by the water filter screen into the inner cavity of the water storage tank.

[0015] By adopting the above technical solution, the water filtered by the filter screen plate overflows from the connection between adjacent filter screen plates and enters the end face of the guide plate. The guide plate guides the water into the inner cavity of the water storage tank, further reducing water waste and improving the recycling of water resources.

[0016] Optionally, the guide plate is rotatably connected to the frame, and the rotation axis of the guide plate is parallel to the sliding direction of the filter screen plate.

[0017] By adopting the above technical solution, when the filter screen plate completes the separation of concrete wastewater, the extrusion plate slides away from the sewage pipe, the pressure on the filter screen plate disappears, the guide plate rotates away from the filter screen plate, the end face of the guide plate is not directly above the inner cavity of the water storage tank, and adjacent filter screen plates rotate away from each other. The concrete accumulated in the containment space falls off due to its own weight, realizing the cleaning of concrete on the end face of the filter screen plate. The guide plate is less likely to guide concrete into the inner cavity of the water storage tank, thereby improving the stability of cleaning concrete on the filter screen plate.

[0018] Optionally, a push-pull assembly is connected to the frame. The push-pull assembly includes a push-pull block, a push-pull elastic element, and a rotating arc plate. The push-pull block is slidably connected to the frame, and the sliding direction of the push-pull block is parallel to the sliding direction of the filter screen plate. The end of the rotating arc plate is rotatably connected to the end face of the push-pull block, and the rotation axis of the rotating arc plate is perpendicular to the sliding direction of the push-pull block. The other end of the rotating arc plate is used to abut against the end face of the slider away from the extrusion plate. One end of the push-pull elastic element in the direction of its elastic force is connected to the end face of the push-pull block, and the other end of the push-pull elastic element in the direction of its elastic force is connected to the rotating arc plate. The push-pull elastic element has the elastic force to drive the rotating arc plate to rotate away from the push-pull block, and the end face of the rotating arc plate tends to press against the end face of the slider.

[0019] By adopting the above technical solution, when the concrete wastewater conservation and utilization device completes the filtration of concrete wastewater, the push-pull block slides towards the filter screen plate. The bottom of the slider abuts against the arc surface of the rotating arc plate and guides the rotating arc plate to rotate towards the push-pull block. When the bottom of the slider disengages from the arc surface of the rotating arc plate, the elastic force of the push-pull elastic element drives the rotating arc plate to rotate away from the push-pull block. The end face of the rotating arc plate abuts against the end face of the slider to form a limit. The push-pull block slides towards the extrusion plate, causing adjacent filter screen plates to move away from each other. The sealing effect between adjacent filter screen plates disappears, and the concrete in the containment space falls off due to its own weight. There is no need for staff to manually push the filter screen plates to slide, reducing the workload of staff and improving the recycling efficiency of concrete wastewater.

[0020] Optionally, the push-pull assembly further includes a push-pull screw and a push-pull motor. The push-pull motor is connected to the end face of the frame, and the end of the push-pull screw is coaxially connected to the motor shaft of the push-pull motor. The axis of the push-pull screw is parallel to the sliding direction of the filter screen plate, and the push-pull block is threadedly connected to the outer wall of the push-pull screw.

[0021] By adopting the above technical solution, the push-pull screw is coaxially connected to the motor shaft of the push-pull motor, and the push-pull block is threadedly connected to the outer wall of the push-pull screw, which drives the push-pull block to slide on the end face of the frame, thereby improving the stability of the push-pull block sliding on the frame.

[0022] Optionally, the push-pull assembly further includes a positioning block and a push-pull rod. The end face of the push-pull block away from the rotating arc plate has an air inlet, and the end face of the push-pull block facing the rotating arc plate has an air outlet. The air inlet connects to the air outlet. The positioning block is slidably connected to the inner wall of the air inlet, and the end face of the positioning block is used to abut against the bottom of the slider. The push-pull rod is slidably connected to the inner wall of the air outlet, and the end face of the push-pull rod is used to abut against the inner arc surface of the rotating arc plate. When the bottom of the slider abuts against the end face of the positioning block, driving the positioning block to slide towards the push-pull block, it drives the end face of the push-pull rod to abut against the inner arc surface of the rotating arc plate, driving the rotating arc plate to slide away from the push-pull block. The end face of the rotating arc plate abuts against the end face of the slider to form a limit.

[0023] By adopting the above technical solution, when the push-pull block slides towards the filter screen plate, the bottom of the slider abuts against the outer arc surface of the rotating arc plate, driving the rotating arc plate to rotate towards the push-pull block. The push-pull block continues to slide towards the filter screen plate, the bottom of the slider abuts against the end face of the positioning block, and drives the positioning block to slide towards the push-pull block. The air inlet is connected to the air outlet, and the increased air pressure in the air outlet drives the end face of the push-pull rod to abut against the inner arc surface of the rotating arc plate, driving the rotating arc plate to rotate away from the push-pull block. The end face of the rotating arc plate presses against the end face of the slider to form a limit, thereby improving the stability of the push-pull assembly in driving the filter screen plate to slide.

[0024] Optionally, the push-pull assembly further includes a cover plate, a reset elastic element, and a limiting rod. The cover plate is rotatably connected to the end face of the push-pull block, and the rotation axis of the cover plate is parallel to the rotation axis of the rotating arc plate. The cover plate is located on the side of the rotating arc plate away from the push-pull rod. One end of the reset elastic element in the direction of its elastic force is connected to the end face of the push-pull block, and the other end of the reset elastic element in the direction of its elastic force is connected to the end face of the cover plate. The reset elastic element has a tendency to drive the cover plate to rotate towards the rotating arc plate. The end face of the push-pull block has a through air channel that connects to the air inlet. The through air channel is located on the side of the cover plate away from the rotating arc plate. One end of the limiting rod is connected to the end face of the cover plate, and the other end of the limiting rod is used to embed into the through air channel to form a limit.

[0025] By adopting the above technical solution, when the push-pull assembly transports the filter screen plate, the operator drives the cover plate to rotate away from the rotating arc plate. The end of the limiting rod is embedded in the through air channel, and the outer wall of the limiting rod abuts against the inner wall of the through air channel to form a fixation. The pressure of the cover plate on the rotating arc plate disappears, allowing the rotating arc plate to stably press against the end face of the slider and drive the filter screen plate to slide. When the push-pull assembly completes the transport of the filter screen plate, the operator drives the cover plate to rotate closer to the rotating arc plate. The end of the limiting rod disengages from the through air channel, and the elastic force of the reset elastic element drives the cover plate to rotate closer to the rotating arc plate. The end face of the cover plate abuts against the outer arc surface of the rotating arc plate and drives the rotating arc plate to rotate closer to the push-pull block. The end face of the rotating arc plate abuts against the end face of the push-pull block, causing the limiting effect of the rotating arc plate on the slider to disappear. The push-pull block slides closer to the extrusion plate, and the end face of the rotating arc plate is less likely to abut against the end face of the slider, improving the stability of the actual push-pull block reset.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The installation of filter screens shortens the separation cycle of concrete wastewater, improves the separation efficiency of concrete wastewater, reduces the input cost of concrete wastewater separation, realizes the reuse of water resources, reduces water waste, and embodies the concept of conservation. 2. The design of the abutment block and the receiving space prevents concrete from clogging the connection hole, thereby improving the stability of concrete wastewater passing through multiple filter screens in sequence through the connection hole; 3. The rotating arc plate eliminates the need for staff to manually push the filter screen, reducing their workload and improving the recycling efficiency of concrete wastewater. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the overall structure of the water filter screen plate in the embodiments of this application.

[0029] Figure 3 This is a schematic diagram of the installation structure of the guide plate and the guide motor in an embodiment of this application.

[0030] Figure 4 This is a schematic diagram of the overall structure of the push-pull assembly in the embodiments of this application.

[0031] Figure 5 This is a schematic diagram of the installation structure of the push-pull assembly and the slider in the embodiments of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Support; 12. Connecting part; 2. Sewage pipe; 3. Extrusion plate; 4. Filter screen plate; 41. Connecting hole; 42. Accommodation space; 5. Extrusion cylinder; 6. Abutting block; 7. Filter pipe; 8. Water storage tank; 9. Guide plate; 10. Guide motor; 13. Slider; 14. Slide rail; 15. Roller; 16. Push-pull assembly; 161. Push-pull block; 1611. Air inlet; 1612. Air outlet; 1613. Through air passage; 162. Push-pull elastic element; 163. Rotating arc plate; 164. Push-pull screw; 165. Push-pull motor; 166. Positioning block; 1661. Guide surface; 167. Positioning elastic element; 168. Push-pull rod; 169. Cover plate; 1610. Reset elastic element; 1614. Limiting rod. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses a device for saving and utilizing concrete wastewater. (Refer to...) Figure 1 and Figure 2 The concrete wastewater conservation and utilization device includes a frame 1, a sewage pipe 2, an extrusion plate 3, and multiple filter screens 4. The sewage pipe 2 is fixed to one end of the frame 1 by a flange and is used to transport concrete wastewater. Multiple filter screens 4 are slidably connected to the end face of the frame 1 in sequence and are used to filter concrete wastewater. The extrusion plate 3 is slidably connected to the frame 1, and the sliding direction of the extrusion plate 3 is parallel to the sliding direction of the filter screens 4. Multiple filter screens 4 are located between the sewage pipe 2 and the extrusion plate 3. A connection hole 41 is opened on the end face of the filter screen 4. The axis of the connection hole 41 is parallel to the sliding direction of the filter screen 4, and the connection hole 41 penetrates the outer wall of the filter screen 4 along its own axis.

[0035] Reference Figure 1 and Figure 2 When the extrusion plate 3 slides towards the sewage pipe 2, the end face of the extrusion plate 3 presses against the end face of the filter screen plate 4, and drives the filter screen plate 4 to slide towards the sewage pipe 2. The end faces of adjacent filter screen plates 4 press against each other to form a seal. The connecting holes 41 on the adjacent filter screen plates 4 correspond one-to-one and are connected. At the same time, the connecting holes 41 on the filter screen plate 4 near the sewage pipe 2 are connected to the inner cavity of the sewage pipe 2. The concrete wastewater in the sewage pipe 2 enters between the adjacent filter screen plates 4 through the connecting holes 41. The water in the concrete wastewater enters the inner cavity of the filter screen plate 4 through the filter screen plate 4, and the concrete remains between the adjacent filter screen plates 4, realizing the separation of concrete wastewater, thereby shortening the separation efficiency of concrete wastewater and reducing the investment cost of concrete wastewater separation.

[0036] Reference Figure 1The frame 1 includes two support parts 11 and two connecting parts 12. The support parts 11 are square plates, and the connecting parts 12 are strip rods. One end of the two connecting parts 12 in the length direction is welded and fixed to both ends in the width direction of one of the support parts 11, and the other end of the two connecting parts 12 in the length direction is welded and fixed to both ends in the width direction of the other support part 11, thereby realizing the installation of the frame 1. The extrusion plate 3 and multiple filter screens 4 are slidably connected between the two connecting parts 12. The sliding direction of the extrusion plate 3, the sliding direction of the filter screens 4, and the length direction of the connecting parts 12 are parallel to each other. The sewage pipe 2 is connected to the end face of the support part 11 away from the extrusion plate 3.

[0037] Reference Figure 1 The end face of the support part 11, which is not connected to the sewage pipe 2, is fixed with a compression cylinder 5 by screws. The piston rod axis of the compression cylinder 5 is parallel to the sliding direction of the compression plate 3. The end of the piston rod of the compression cylinder 5 passes through the outer wall of the support part 11 and is welded and fixed to the end face of the compression plate 3. The compression cylinder 5 drives the compression plate 3 to slide and connect to the end face of the connecting part 12.

[0038] Reference Figure 1 and Figure 2 Each of the four corners of the two end faces of the filter screen plate 4 is fixed with abutment blocks 6. When the end faces of adjacent filter screen plates 4 are pressed together to form a seal, the abutment blocks 6 correspond one-to-one and press together. There is a receiving space 42 between adjacent filter screen plates 4 to accommodate concrete wastewater, and the receiving space 42 is connected to the connecting hole 41. A filter pipe 7 is fixed to the bottom of each filter screen plate 4 in the width direction. The inner cavity of the filter pipe 7 is connected to the inner cavity of the filter screen plate 4. Two water storage tanks 8 are welded and fixed between the two support parts 11. The two water storage tanks 8 are located at both ends of the support parts 11 in the width direction. The pipe opening of the filter pipe 7 away from the filter screen plate 4 faces the inner cavity of the water storage tank 8. The water storage tank 8 is used to store the water after the concrete wastewater has been filtered.

[0039] Reference Figure 1 and Figure 2 Water from the concrete wastewater in the containment space 42 is filtered through the filter screen plate 4 and then discharged into the inner cavity of the water storage tank 8 through the filter pipe 7, thereby collecting the separated water from the concrete wastewater, reducing water waste, and improving the utilization rate of water resources.

[0040] Reference Figure 1 and Figure 3 Two guide plates 9 are rotatably connected between the two support parts 11. The two guide plates 9 are located at both ends of the support part 11 in the width direction, and the rotation axis of the guide plates 9 is parallel to the length direction of the connecting part 12. One end of the guide plate 9 is located directly below the water filter screen plate 4, and the other end of the guide plate 9 is located directly above the inner cavity of the water storage tank 8. The guide plates 9 are used to receive water overflowing between adjacent water filter screen plates 4 and guide the water into the inner cavity of the water storage tank 8, thereby increasing the utilization rate of water resources, reducing water consumption, and embodying the concept of energy conservation.

[0041] Reference Figure 1 and Figure 3 Two guide motors 10 are fixed to the end face of the support part 11, which is fixed with the extrusion cylinder 5, by screws. The axis of the motor shaft of the guide motor 10 coincides with the rotation axis of the guide plate 9. The guide motor 10 and the guide plate 9 correspond one-to-one. The motor shaft of the guide motor 10 passes through the outer wall of the support part 11 and is coaxially welded to the end of the rotation axis of the guide plate 9. The guide motor 10 drives the guide plate 9 to rotate and is connected to the end face of the support part 11. There is no need for the staff to drive the guide plate 9 to rotate, thereby reducing the workload of the staff and improving the separation efficiency of concrete wastewater.

[0042] Reference Figure 1 and Figure 2 The filter screen plate 4 has sliders 13 welded and fixed on both sides in the width direction. The end face of the connecting part 12 is fixed with a slide rail 14 for the sliders 13 to slide. The length direction of the slide rail 14 is parallel to the length direction of the connecting part 12. The sliders 13 are rotatably connected to the end face of the slide rail 14 with rollers 15. The wheel surface of the rollers 15 makes rolling contact with the end face of the slide rail 14. Rolling friction replaces sliding friction, reducing the wear between the sliders 13 and the slide rail 14, thereby improving the stability of the sliders 13 sliding on the end face of the slide rail 14.

[0043] Reference Figure 1 and Figure 4 Two push-pull components 16 are connected to the frame 1. The push-pull components 16 correspond one-to-one with the connecting part 12. The push-pull components 16 are used to drive the water filter screen plate 4 to slide towards the squeezing plate 3.

[0044] Reference Figure 4 and Figure 5 The push-pull assembly 16 includes a push-pull block 161, a push-pull elastic element 162, a rotating arc plate 163, a push-pull screw 164, a push-pull motor 165, a positioning block 166, a positioning elastic element 167, a push-pull rod 168, a cover plate 169, a reset elastic element 1610, and a limit rod 1614.

[0045] Reference Figure 1 and Figure 4 The push-pull motor 165 is fixed to the end face of the support part 11 by screws. The axis of the motor shaft of the push-pull motor 165 is parallel to the length direction of the connecting part 12. The end of the push-pull screw 164 passes through the outer wall of the support part 11 and is coaxially fixed to the motor shaft of the push-pull motor 165. The push-pull block 161 is threaded to the outer wall of the push-pull screw 164. The sliding direction of the push-pull block 161 is parallel to the axis of the push-pull screw 164.

[0046] Reference Figure 1 and Figure 4One end of the rotating arc plate 163 is rotatably connected to the end face of the push-pull block 161, and the other end of the rotating arc plate 163 is used to press against the end face of the slider 13 to form a limit. The rotation axis of the rotating arc plate 163 is located on the side of the push-pull block 161 away from the extrusion plate 3, and the rotation axis of the rotating arc plate 163 is perpendicular to the sliding direction of the slider 13. The push-pull elastic element 162 can be a torsion spring or a tension spring. In this embodiment, the push-pull elastic element 162 is a torsion spring, which has a certain deformation capacity. The push-pull elastic element 162 has the elastic force to drive the rotating arc plate 163 to rotate in a direction closer to the push-pull block 161.

[0047] Reference Figure 4 The push-pull block 161 has an air inlet 1611, an air outlet 1612, and a through airway 1613 on its end face. The air outlet 1612 is located between the rotation axis of the rotating arc plate 163 and the air inlet 1611, and the through airway 1613 is located on the side of the rotation axis of the rotating arc plate 163 away from the air inlet 1611. The air inlet 1611, air outlet 1612, and through airway 1613 are connected sequentially. The positioning block 166 is slidably connected to the inner wall of the air inlet 1611. The positioning elastic element 167 can be a compression spring or a tension spring. In this embodiment, the positioning elastic element 167 is a compression spring and has a certain deformation capability. One end of the positioning elastic element 167 in the direction of elastic force is connected to the inner wall of the air inlet 1611, and the other end of the positioning elastic element 167 in the direction of elastic force is connected to the end face of the positioning block 166. The positioning elastic element 167 has the tendency to drive the positioning block 166 to slide closer to the bottom of the slider 13.

[0048] Reference Figure 4 The sliding direction of the positioning block 166 is perpendicular to the rotation axis of the rotating arc plate 163. In this embodiment, the positioning block 166 is equivalent to a piston. The end face of the positioning block 166 facing the bottom of the slider 13 is provided with a guide surface 1661. The guide surface 1661 is in the shape of a circular arc protrusion. The guide surface 1661 is used to abut against the bottom wall of the slider 13 and guide the positioning block 166 to slide towards the push-pull block 161.

[0049] Reference Figure 4 The push-pull rod 168 is slidably connected to the inner wall of the air outlet 1612. The sliding direction of the push-pull rod 168 is parallel to the sliding direction of the positioning block 166. In this embodiment, the push-pull rod 168 is equivalent to a piston. The end face of the push-pull rod 168 is used to abut against the inner arc surface of the rotating arc plate 163 and drive the rotating arc plate 163 to rotate away from the push-pull block 161, and guide the end face of the rotating arc plate 163 to press against the end face of the slider 13 to form a limit.

[0050] Reference Figure 1 and Figure 4When the push-pull block 161 slides towards the water filter screen plate 4, the bottom wall of the slider 13 abuts against the outer arc surface of the rotating arc plate 163, and drives the rotating arc plate 163 to rotate towards the push-pull block 161. The bottom of the slider 13 disengages from the outer arc surface of the rotating arc plate 163, and the push-pull block 161 continues to slide along the axis of the push-pull screw 164. The bottom of the slider 13 abuts against the guide surface 1661, and the guide positioning block 166 of the guide surface 1661 slides towards the push-pull block 161. The air pressure in the air inlet 1611 increases, and drives the push-pull rod 168 to slide away from the push-pull block 161 on the inner wall of the air outlet 1612. The end face of the push-pull rod 168 abuts against the inner arc surface of the rotating arc plate 163, and drives the rotating arc plate 163 to rotate away from the push-pull block 161. The end face of the rotating arc plate 163 presses against the end face of the slider 13 to form a limit.

[0051] Reference Figure 4 and Figure 5 The cover plate 169 is rotatably connected to the end face of the push-pull block 161. The rotation axis of the cover plate 169 is parallel to the rotation axis of the rotating arc plate 163. The reset elastic element 1610 can be a torsion spring or a tension spring. In this embodiment, the reset elastic element 1610 is a torsion spring, which has a certain deformation capability. One end of the reset elastic element 1610 in the elastic direction is connected to the end face of the push-pull block 161, and the other end of the reset elastic element 1610 in the elastic direction is connected to the end face of the cover plate 169. The reset elastic element 1610 has the elastic force to drive the cover plate 169 to rotate towards the rotating arc plate 163. The end of the limiting rod 1614 is welded and fixed to the end face of the cover plate 169 away from the rotating arc plate 163, and the other end of the limiting rod 1614 is used to embed into the through air passage 1613 to form a fixation.

[0052] The implementation principle of the concrete wastewater conservation and utilization device in this application embodiment is as follows: the extrusion cylinder 5 drives the extrusion plate 3 to slide towards the sewage pipe 2. The end face of the extrusion plate 3 presses against the end face of the filter screen plate 4, and drives the filter screen plate 4 to slide towards the sewage pipe 2. The end faces of adjacent filter screen plates 4 press against each other to form a seal. The connecting holes 41 on adjacent filter screen plates 4 correspond one-to-one and are connected. At the same time, the connecting holes 41 on the filter screen plate 4 near the sewage pipe 2 are connected to the inner cavity of the sewage pipe 2. The concrete wastewater in the sewage pipe 2 enters the receiving space 42 through the connecting holes 41. The water in the concrete wastewater in the receiving space 42 enters the inner cavity of the filter screen plate 4 through the filter screen plate 4 and is discharged from the inner cavity of the water storage tank 8 through the filter pipe 7. The concrete remains in the receiving space 42, realizing the separation of concrete wastewater. It eliminates the need to let the concrete wastewater stand to achieve solid-liquid separation, shortens the separation cycle of concrete wastewater, improves the separation efficiency of concrete wastewater, reduces the input cost of concrete wastewater separation, realizes the reuse of water resources, reduces the waste of water resources, and thus embodies the concept of conservation.

[0053] 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 concrete waste water saving device, characterized by: The system includes a frame (1), a sewage pipe (2), an extrusion plate (3), and multiple filter screens (4). The sewage pipe (2) is connected to the end face of the frame (1) and is used to transport concrete wastewater. The multiple filter screens (4) are slidably connected to the frame (1) and are used to filter concrete wastewater. The end face of the filter screens (4) is provided with connection holes (41) for the concrete wastewater to pass through. The bottom of the filter screens (4) is connected to a filter. Pipe (7), the water filter pipe (7) is used to discharge the water filtered by the water filter screen plate (4), the squeezing plate (3) is slidably connected to the frame (1), the sliding direction of the squeezing plate (3) and the sliding direction of the water filter screen plate (4) are parallel to each other, when the squeezing plate (3) drives the water filter screen plate (4) to slide towards the sewage pipe (2), the end faces of the adjacent water filter screen plates (4) abut together to form a seal, and the inner cavity of the sewage pipe (2) is connected to the connecting hole (41).

2. The concrete wastewater conservation and utilization device according to claim 1, characterized in that: Each of the four corners of the two end faces of the filter screen plate (4) is connected to an abutment block (6). When the end faces of adjacent filter screen plates (4) are pressed together to form a seal, the end faces of the abutment blocks (6) on the adjacent filter screen plates (4) correspond to each other and are pressed together. There is a space (42) between the end faces of the adjacent filter screen plates (4) to accommodate concrete, and the space (42) is connected to the connection hole (41).

3. The concrete wastewater conservation and utilization device according to claim 1, characterized in that: The frame (1) is connected to a slide rail (14), and the filter screen plate (4) is connected to a slider (13), which is slidably connected to the end face of the slide rail (14).

4. The concrete waste water conservation device of claim 2, wherein: A water storage tank (8) is connected to the frame (1), and the opening of the water filter pipe (7) away from the water filter screen plate (4) faces the inner cavity of the water storage tank (8). The water storage tank (8) is used to store the water discharged from the water filter pipe (7).

5. The concrete waste water conservation device of claim 4, wherein: A guide plate (9) is connected to the frame (1). One end of the guide plate (9) is located directly below the water filter screen (4), and the other end of the guide plate (9) is located directly above the inner cavity of the water storage tank (8). The guide plate (9) guides the water filtered by the water filter screen (4) into the inner cavity of the water storage tank (8).

6. The concrete waste water conservation device of claim 5, wherein: The guide plate (9) is rotatably connected to the frame (1), and the rotation axis of the guide plate (9) is parallel to the sliding direction of the filter screen plate (4).

7. The concrete waste water conservation device of claim 3, wherein: A push-pull assembly (16) is connected to the frame (1). The push-pull assembly (16) includes a push-pull block (161), a push-pull elastic element (162), and a rotating arc plate (163). The push-pull block (161) is slidably connected to the frame (1). The sliding direction of the push-pull block (161) is parallel to the sliding direction of the filter screen plate (4). The end of the rotating arc plate (163) is rotatably connected to the end face of the push-pull block (161). The rotation axis of the rotating arc plate (163) is parallel to the sliding direction of the push-pull block (161). Vertically, the other end of the rotating arc plate (163) is used to abut against the end face of the slider (13) away from the extrusion plate (3). One end of the push-pull elastic element (162) in the elastic direction is connected to the end face of the push-pull block (161), and the other end of the push-pull elastic element (162) in the elastic direction is connected to the rotating arc plate (163). The push-pull elastic element (162) has the elastic force to drive the rotating arc plate (163) to rotate away from the push-pull block (161), and the end face of the rotating arc plate (163) tends to press against the end face of the slider (13).

8. The concrete waste water conservation device of claim 7, wherein: The push-pull assembly (16) also includes a push-pull screw (164) and a push-pull motor (165). The push-pull motor (165) is connected to the end face of the frame (1). The end of the push-pull screw (164) is coaxially connected to the motor shaft of the push-pull motor (165). The axis of the push-pull screw (164) is parallel to the sliding direction of the filter screen plate (4). The push-pull block (161) is threaded to the outer wall of the push-pull screw (164).

9. The concrete wastewater conservation and utilization device according to claim 8, characterized in that: The push-pull assembly (16) further includes a positioning block (166) and a push-pull rod (168). The end face of the push-pull block (161) away from the rotating arc plate (163) has an air inlet (1611), and the end face of the push-pull block (161) facing the rotating arc plate (163) has an air outlet (1612). The air inlet (1611) connects to the air outlet (1612). The positioning block (166) is slidably connected to the inner wall of the air inlet (1611). The end face of the positioning block (166) is used to abut against the bottom of the slider (13). The push-pull rod (168)... 8) The push-pull rod (168) is slidably connected to the inner wall of the air outlet (1612). The end face of the push-pull rod (168) is used to abut against the inner arc surface of the rotating arc plate (163). When the bottom of the slider (13) abuts against the end face of the positioning block (166), driving the positioning block (166) to slide towards the push-pull block (161), the end face of the push-pull rod (168) abuts against the inner arc surface of the rotating arc plate (163), driving the rotating arc plate (163) to slide away from the push-pull block (161). The end face of the rotating arc plate (163) abuts against the end face of the slider (13) to form a limit.

10. The concrete wastewater conservation and utilization device according to claim 9, characterized in that: The push-pull assembly (16) further includes a cover plate (169), a reset elastic element (1610), and a limiting rod (1614). The cover plate (169) is rotatably connected to the end face of the push-pull block (161). The rotation axis of the cover plate (169) is parallel to the rotation axis of the rotating arc plate (163). The cover plate (169) is located on the side of the rotating arc plate (163) away from the push-pull rod (168). One end of the reset elastic element (1610) in the elastic direction is connected to the end face of the push-pull block (161), and the other end of the reset elastic element (1610) in the elastic direction is connected to the end face of the cover plate (169). 69) The end face of the reset elastic element (1610) has the tendency to drive the cover plate (169) to rotate in the direction close to the rotating arc plate (163) with elastic force. The end face of the push-pull block (161) is provided with a through air passage (1613). The through air passage (1613) is connected to the air inlet (1611). The through air passage (1613) is located on the side of the cover plate (169) away from the rotating arc plate (163). One end of the limiting rod (1614) is connected to the end face of the cover plate (169). The other end of the limiting rod (1614) is used to embed into the through air passage (1613) to form a limit.

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