Building wastewater circulating treatment system

Abstract

The invention relates to the technical field of water treatment, in particular to a building wastewater circulation treatment system which comprises a filtering tank for building wastewater to enter and a filter element arranged in the filtering tank and capable of filtering impurities. The filter tank is communicated with a water inlet pipe which is lower than the filter element and allows building wastewater to enter and a water outlet pipe which is higher than the filter element and allows the building wastewater to be discharged, the outer wall of the filter tank is communicated with a side tank, a circulating belt is in transmission connection with the wall of the side tank, and the surface of the circulating belt is fixedly connected with a belt plate capable of moving impurities filtered at the bottom of the filter tank into the side tank; a push plate capable of pushing sundries at the bottom of the filtering tank towards the circulating belt is arranged on one side, far away from the circulating belt, of the filtering tank, and the filtering tank is provided with a push plate air cylinder for driving the push plate to move, so that the filtered sundries in the filtering tank can be conveniently cleaned.

Description

Technical Field

[0001] The present application relates to the field of water treatment technology, and in particular to a construction wastewater recycling treatment system. Background Art

[0002] Construction wastewater is water with a large amount of particulate matter and a small amount of organic matter or heavy metals generated during the construction process, such as on-site cleaning, concrete pouring, and equipment oil pollution. The amount of construction wastewater is relatively large. Direct disposal will cause a large waste of water resources and will impose a heavy burden on sewage treatment plants. For this reason, some existing practices will centrally treat the construction wastewater through the drainage facilities at the construction site and then recycle it.

[0003] For example, the announcement number CN215798816U is a construction water-saving device that makes secondary use of water resources. Construction wastewater can be circulated and filtered in the filter tank to remove large particles of impurities as needed, or sent to a ceramic membrane filter for purification after passing through the filter tank to remove small particles of impurities, and then discharged for reuse.

[0004] With respect to the above-mentioned related technologies, construction wastewater enters from the upper part of the filter tank body and is discharged from the lower part of the filter tank body. The debris and impurities in the construction wastewater will accumulate on the upper part of the filter element in the filter tank body. When the accumulation reaches a certain level, the filter tank body needs to be dismantled to clean the debris accumulated on the filter element, which is inconvenient. Summary of the invention

[0005] In order to facilitate more convenient treatment of filtered debris, the present application provides a construction wastewater recycling treatment system.

[0006] The present application provides a construction wastewater recycling treatment system that adopts the following technical solution.

[0007] A construction wastewater recycling treatment system comprises a filter tank for construction wastewater to enter, a filter element arranged in the filter tank and capable of filtering debris, the filter tank is connected with an inlet pipe whose height is lower than the filter element and for construction wastewater to enter, and a water outlet pipe whose height is higher than the filter element and for construction wastewater to be sent out, the outer wall of the filter tank is connected with a side tank, a circulating belt is connected with the transmission in the wall thickness of the side tank, a belt plate is fixedly connected with the surface of the circulating belt and can move the debris filtered at the bottom of the filter tank to the side tank, a push plate is provided on the side of the filter tank away from the circulating belt and can push the debris at the bottom of the filter tank toward the circulating belt, and the filter tank is provided with a push plate cylinder for driving the push plate to move.

[0008] By adopting the above technical solution, construction wastewater flows from bottom to top in the filter tank, so that the filtered debris accumulates at the bottom of the filter tank. After the system has been running for a certain period of time, the push plate pushes the debris at the bottom of the filter tank to the circulation belt, so that the belt plate can transfer the debris to the side tank, and there is no need to dismantle the filter tank to process the debris in the filter tank.

[0009] Optionally, the circulation belt is inclined, and the opening in the wall thickness of the side tank connected to the bottom of the filter tank is an inclined opening. The bottom end of the circulation belt is located at a position where the inclined opening is close to the filter tank, and the upper end of the circulation belt is located in the upper part of the side tank chamber. The height of the upper end of the inclined opening is higher than the height of the top surface of the filter tank chamber.

[0010] By adopting the above technical solution, it is not easy for too much water in the filter tank to enter the side tank during the process of the belt plate driving the debris into the side tank.

[0011] Optionally, the belt plate is provided with water holes extending therethrough.

[0012] By adopting the above technical solution, the water adsorbed by the debris in the process of being driven upward by the belt plate can flow back into the filter tank along the inclined mouth, reducing the water brought out by the belt plate.

[0013] Optionally, a conveyor is provided in the side tank chamber, and the conveyor is located directly below the portion of the circulating belt exposed at the oblique mouth to receive debris falling from the belt plate.

[0014] By adopting the above technical solution, the debris sent by the belt plate into the side tank is transported to the subsequent processing station via the conveyor, so that the debris is not easily accumulated in the side tank.

[0015] Optionally, the side tank is provided with a side air nozzle facing the surface of the belt plate that contacts the filtered debris, and the side tank is also detachably connected to a connecting plate located on the side of the conveyor away from the side air nozzle. The connecting plate is inclined and the bottom end is located directly above the side of the conveyor transmission surface away from the side air nozzle, and the upper end of the connecting plate is away from the conveyor.

[0016] By adopting the above technical solution, some sundries and impurities attached to the belt plate can be blown off, so that the belt plate can bring as much sundries and impurities as possible out of the filter tank each time.

[0017] Optionally, the side tank is provided with a gas-flowing nozzle for delivering air along the inclined direction of the connecting plate, the gas outlet of the gas-flowing nozzle is flush with the inclined surface of the connecting plate, and the surface of the connecting plate is provided with a plurality of plate holes for delivering gas.

[0018] By adopting the technical solution, the sundries and impurities blown onto the connecting plate by the side air nozzle are blown off the side plate, thereby preventing the sundries and impurities from being adhered to the connecting plate.

[0019] Optionally, the side tank is slidably connected to a nozzle slider along the transmission direction of the conveyor, the nozzle slider is detachably connected to the air jet nozzle, and a slider cylinder is provided in the side tank to enable the nozzle slider to reciprocate.

[0020] By adopting the above technical solution, it is difficult for foreign matter or impurities to remain anywhere on the connecting plate.

[0021] Optionally, the portion of the push plate whose height is higher than the opening height of the bottom end of the bevel is formed into an upward push bevel, and the lower the height of the upward push bevel is, the closer it is to the bottom end of the bevel.

[0022] By adopting the above technical solution, when there is a lot of debris accumulated at the bottom of the filter tank and it is higher than the bottom end of the inclined mouth, the push plate moves toward the bottom end of the inclined mouth. The debris higher than the bottom end of the inclined mouth is not easy to cause a large resistance to the forward movement of the push plate, so that the push plate can smoothly push the debris to the belt plate.

[0023] Optionally, there is a pressure sensor between the push plate and the push plate cylinder power rod for detecting the pressure exerted on the push plate, and the pressure sensor and the push plate cylinder are electrically connected to a controller.

[0024] By adopting the above technical solution, once the push plate is subjected to excessive pressure during its forward movement, the push plate will stop moving forward to prevent damage to the push plate or the push plate cylinder.

[0025] Optionally, the push plate cylinder power rod is fixedly connected to a sleeve, the pressure sensor is located in the sleeve, a retractable rod is slidably connected in the sleeve, and the sleeve is provided with a compression spring located between the pressure sensor and the retractable rod.

[0026] By adopting the above technical solution, the pressure sensor is protected, and at the same time the compression spring can be changed to a longer length to reduce the possibility of damage to the push plate as much as possible.

[0027] In summary, the present application includes at least the following beneficial effects.

[0028] Construction wastewater flows from bottom to top in the filter tank, so that the filtered debris accumulates at the bottom of the filter tank. After the system runs for a certain period of time, the push plate pushes the debris at the bottom of the filter tank to the circulation belt, so that the belt plate can transfer the debris to the side tank. There is no need to dismantle the filter tank to deal with the debris in the filter tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of the present application showing a cross-section of the filter tank and the side tank; Figure 2 It is a structural schematic diagram of another perspective of sectioning the side of the tank; Figure 3 It is a schematic diagram of the cross-sectional structure of the sleeve and the retracted rod; Figure 4 It is a control system block diagram that is part of this application.

[0030] Explanation of the accompanying drawings: 1. filter tank; 2. filter element; 3. water inlet pipe; 31. compression spring; 4. water outlet pipe; 41. forward air nozzle; 42. plate hole; 43. nozzle slider; 44. slider cylinder; 45. push-up slope; 46. pressure sensor; 47. controller; 48. sleeve; 49. retracted rod; 5. side tank; 51. circulating belt; 52. belt plate; 53. push plate; 54. push plate cylinder; 55. oblique mouth; 56. water hole; 57. conveyor; 58. side air nozzle; 59. connecting plate. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] The present application discloses a construction wastewater recycling treatment system. Figure 1 , including a filter tank 1, a filter element 2 is detachably connected at the middle position inside the filter tank 1, and several filter tanks 1 can be arranged in a connected manner along the water flow direction, and the filter element 2 in the filter tank 1 that is further back along the water flow direction has a lower filtration accuracy, and corresponding alkali solution and oil decomposition agent can be added to the last few filter tanks 1 to precipitate heavy metals and decompose oil, and then the construction wastewater can be recycled.

[0033] Reference Figure 1 and Figure 2 The filter tank 1 is connected with an inlet pipe 3 whose height is lower than the filter element 2 and an outlet pipe 4 whose height is higher than the filter element 2. The inlet pipe 3 and the outlet pipe 4 are located on two opposite sides of the filter tank 1 in a one-to-one correspondence. The inlet pipe 3 is connected with a water pump to pump construction wastewater into the filter tank 1, and the outlet pipe 4 discharges the filtered construction wastewater, so that the filtered debris accumulates at the bottom of the filter tank 1. The outer wall of the filter tank 1 is connected with a side tank 5. The surface of the filter tank 1 where the side tank 5 is set is adjacent to the surface of the filter tank 1 where the inlet pipe 3 is set. An inclined oblique opening 55 is opened in the wall thickness of the side tank 5. The bottom end of the oblique opening 55 is connected with the bottom of the chamber of the filter tank 1, and the upper end opening height of the oblique opening 55 is higher than the top surface height of the chamber of the filter tank 1. A circulating belt 51 is connected to the inclined opening 55 along its own inclined direction, a steel rod is arranged in the inclined opening 55 and a motor is arranged outside the side tank 5 to drive the circulating belt 51 to transmit, and a plurality of belt plates 52 are evenly and fixedly connected to the transmission surface of the circulating belt 51, and the belt plates 52 can move in contact with the inclined surface of the inclined opening 55. A plurality of water holes 56 are also penetrated on the surface of the belt plates 52, so that when the belt plates 52 move to a position where the inclined opening 55 is higher than the top surface of the chamber of the filter tank 1, the water adsorbed by the upwardly moving debris driven by the belt plates 52 can flow down along the inclined inner wall of the inclined opening 55.

[0034] Reference Figure 1, a push plate 53 is slidably connected in the filter tank 1 in the direction toward the bottom of the oblique opening 55, the surface of the push plate 53 facing the bottom opening of the oblique opening 55 is vertical, and the surface of the push plate 53 higher than the bottom opening of the oblique opening 55 is the upper push inclined surface 45, and the lower the height of the upper push inclined surface 45, the closer it is to the bottom of the oblique opening 55, so that when the push plate 53 moves toward the oblique opening 55, the debris higher than the vertical surface of the push plate 53 can move up along the upper push inclined surface 45 appropriately without being directly squeezed, so that while the push plate 53 smoothly pushes the debris toward the oblique opening 55, the debris is not easy to pass over the push plate 53 and accumulate at a position where the push plate 53 cannot push the debris toward the oblique opening 55. And the height of the water inlet pipe 3 is higher than the highest height of the push plate 53.

[0035] Reference Figure 1 and Figure 3 The outer wall of the filter tank 1 is detachably connected to a push plate cylinder 54, and the power rod of the push plate cylinder 54 is fixedly connected to a sleeve 48. The inner wall of the sleeve 48 is slidably connected to a retracting rod 49 along the moving direction of the power rod of the push plate cylinder 54. One end of the retracting rod 49 exposed outside the sleeve 48 is detachably connected to the push plate 53.

[0036] Reference Figure 3 and Figure 4 The sleeve 48 is detachably connected with a pressure sensor 46, a compression spring 31 is placed in the sleeve 48, and the retracted rod 49 is located in the sleeve 48 with a larger cross-sectional area at one end, so that the retracted rod 49 is difficult to be easily separated from the sleeve 48. The pressure sensor 46 and the push plate cylinder 54 are electrically connected to the controller 47. When the pressure value detected by the pressure sensor 46 is greater than the pressure threshold of the controller 47, the push plate cylinder 54 stops running.

[0037] Reference Figure 2A belt-type conveyor 57 is installed on the outside of the side tank 5 away from the filter tank 1. The conveying direction of the conveyor 57 is horizontal. The end of the conveyor 57 close to the filter tank 1 is close to the inner wall of the side tank 5 close to the filter tank 1. The conveying surface of the conveyor 57 is located directly below the part of the circulating belt 51 exposed at the oblique opening 55, and the conveyor belt width of the conveyor 57 is greater than the width of the circulating belt 51. An opening is set on the inner wall of the side tank 5 with the oblique opening for one end of the conveyor 57 to enter, so that the debris falling from the belt plate 52 after moving out of the oblique opening 55 can fall on the conveyor belt of the conveyor 57. The inner wall of the side tank 5 is detachably connected with a side air nozzle 58, and the side air nozzle 58 is connected to an external air pump to send a high-pressure airflow to the surface of the belt plate 52 contacting the debris. The inner wall of the side tank 5 provided with the side air nozzle 58 is adjacent to the inner wall of the side tank 5 provided with the inclined opening 55. The inner wall of the side tank 5 away from the side air nozzle 58 is detachably connected with an inclined connecting plate 59. The lower the height of the connecting plate 59, the closer it is to the conveyor 57. The lowest position of the connecting plate 59 is located directly above the side edge of the conveyor belt of the conveyor 57, so that the debris attached to the belt plate 52 is blown toward the connecting plate 59 by the side air nozzle 58, and the debris then falls along the inclined surface of the connecting plate 59 onto the conveyor belt of the conveyor 57.

[0038] Reference Figure 2 The inclined upper surface of the connecting plate 59 is densely covered with a number of plate holes 42. The connecting plate 59 is connected to an external air pump so that the plate holes 42 can send airflow upward, so that debris is not easy to adhere to the connecting plate 59. The side tank 5 is slidably connected to a nozzle slider 43 along the conveying direction of the conveyor 57. The nozzle slider 43 is detachably connected to a down-flow nozzle 41 that sends high-pressure airflow along the inclined direction of the connecting plate 59. The down-flow nozzle 41 is flush with the inclined upper surface of the connecting plate 59. The side tank 5 is detachably connected to a slider cylinder 44 whose power rod is detachably connected to the nozzle slider 43, so that the down-flow nozzle 41 reciprocates to blow the debris on the connecting plate 59 onto the conveyor 57.

[0039] The implementation principle of a construction wastewater recycling treatment system of the embodiment of the present application is as follows: construction wastewater flows from bottom to top in the filter tank 1, so that the filtered debris accumulates at the bottom of the filter tank 1. After a certain period of time and when the water inlet pipe 3 temporarily stops pumping construction wastewater, the push plate cylinder 54 drives the push plate 53 to move to push the debris toward the bottom of the oblique opening 55, and at the same time, the circulating belt 51 drives the belt plate 52 to move the debris pushed by the push plate 53 along the inclined bottom surface of the oblique opening 55, so that the debris at the bottom of the filter tank 1 can be brought from the oblique opening 55 into the side tank 5, and fall onto the conveyor 57 for transportation. At the same time, the side air nozzle 58 can blow the debris attached to the belt plate 52 onto the receiving plate 59, and the debris on the receiving plate 59 can fall onto the conveyor 57 for transportation.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A construction wastewater recycling treatment system, comprising a filter tank (1) for construction wastewater to enter, and a filter element (2) disposed in the filter tank (1) and capable of filtering impurities, characterized in that: The filter tank (1) is connected to an inlet pipe (3) whose height is lower than the filter element (2) and for construction wastewater to enter, and an outlet pipe (4) whose height is higher than the filter element (2) and for construction wastewater to be discharged. The outer wall of the filter tank (1) is connected to a side tank (5). A circulating belt (51) is connected to the wall thickness of the side tank (5) for transmission. A belt plate (52) capable of moving the filtered debris at the bottom of the filter tank (1) to the side tank (5) is fixedly connected to the surface of the circulating belt (51). A push plate (53) capable of pushing the debris at the bottom of the filter tank (1) toward the circulating belt (51) is provided on the side of the filter tank (1) away from the circulating belt (51). The filter tank (1) is provided with a push plate cylinder (54) for driving the push plate (53) to move.

2. A construction wastewater recycling treatment system according to claim 1, characterized in that: The circulation belt (51) is inclined, and the opening in the wall thickness of the side tank (5) connected to the bottom of the filter tank (1) is an inclined opening (55). The bottom end of the circulation belt (51) is located at a position where the inclined opening (55) is close to the filter tank (1), and the upper end of the circulation belt (51) is located in the upper part of the chamber of the side tank (5). The height of the upper end of the inclined opening (55) is higher than the height of the top surface of the chamber of the filter tank (1).

3. A construction wastewater recycling treatment system according to claim 2, characterized in that: The belt plate (52) is provided with a water hole (56) extending therethrough.

4. A construction wastewater recycling treatment system according to claim 2, characterized in that: A conveyor (57) is provided in the chamber of the side tank (5), and the conveyor (57) is located directly below the portion of the circulating belt (51) exposed at the oblique opening (55) to receive debris dropped from the belt plate (52).

5. A construction wastewater recycling treatment system according to claim 4, characterized in that: The side tank (5) is provided with a side air jet nozzle (58) facing the surface of the belt plate (52) contacting the filtered debris. The side tank (5) is also detachably connected with a connecting plate (59) located on a side of the conveyor (57) away from the side air jet nozzle (58). The connecting plate (59) is inclined and the bottom end is located directly above the side of the conveying surface of the conveyor (57) away from the side air jet nozzle (58). The upper end of the connecting plate (59) is away from the conveyor (57).

6. A construction wastewater recycling treatment system according to claim 5, characterized in that: The side tank (5) is provided with a gas-flowing nozzle (41) for delivering gas along the inclined direction of the connecting plate (59). The gas outlet of the gas-flowing nozzle (41) is flush with the inclined surface of the connecting plate (59). The surface of the connecting plate (59) is provided with a plurality of plate holes (42) for delivering gas.

7. A construction wastewater recycling treatment system according to claim 6, characterized in that: The side tank (5) is slidably connected to a nozzle slider (43) along the transmission direction of the conveyor (57); the nozzle slider (43) is detachably connected to the jet nozzle (41); and a slider cylinder (44) is provided in the side tank (5) to enable the nozzle slider (43) to reciprocate.

8. A construction wastewater recycling treatment system according to claim 2, characterized in that: The portion of the push plate (53) whose height is higher than the opening height of the bottom end of the inclined opening (55) is formed into an upward push inclined surface (45), and the lower the height of the upward push inclined surface (45), the closer the position is to the bottom end of the inclined opening (55).

9. A construction wastewater recycling treatment system according to claim 1, characterized in that: A pressure sensor (46) for detecting the pressure applied to the push plate (53) is provided between the push plate (53) and the power rod of the push plate cylinder (54). The pressure sensor (46) and the push plate cylinder (54) are electrically connected to a controller (47).

10. A construction wastewater recycling treatment system according to claim 9, characterized in that: The power rod of the push plate cylinder (54) is fixedly connected to a sleeve (48), the pressure sensor (46) is located in the sleeve (48), a retractable rod (49) is slidably connected in the sleeve (48), and the sleeve (48) is provided with a compression spring (31) located between the pressure sensor (46) and the retractable rod (49).

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