Cleaning water-saving system

Abstract

The invention relates to a cleaning water-saving system which comprises a cleaning rod erected above a sedimentation tank, elastic mesh cloth is laid on a sedimentation slope of an inclined pipe / plate in an attached mode, and the elastic mesh cloth can elastically stretch and reset in the extending direction of the elastic mesh cloth; the lower end of the elastic screen cloth is fixedly connected with the lower end of the inclined tube / plate, the upper end of the elastic screen cloth is fixedly connected with the cleaning rod, in an initial state, the part of the elastic screen cloth corresponding to the settlement slope of the inclined tube / plate is tensioned and clung to the settlement slope, and the inclination angle of the part exceeding the upper end of the inclined tube / plate is smaller than that of the inclined tube / plate; the settling pond is provided with a cleaning control device which is used for controlling the cleaning rod to move until the elastic screen cloth is completely parallel to the corresponding inclined pipe / plate and driving the cleaning rod to shake back and forth along the inclination direction of the inclined pipe / plate when the inclined pipe / plate is cleaned. When the elastic mesh cloth is tightly attached to the sedimentation slope of the inclined pipe / plate, the inclined pipe / plate can be cleaned online through reciprocating shaking in the inclination direction of the inclined pipe / plate, and the influence on water flow is small.

Description

Technical Field

[0001] The present application relates to the technical field of water treatment systems, and in particular to a water-saving cleaning system. Background Art

[0002] In industrial production, high-pressure cleaners are primarily used to clean cast iron (aluminum) surfaces. The cleaning process consists of three steps: a first rinse with reclaimed water, a second with solvent, and a third with pure water. The resulting wastewater contains harmful substances such as grease, waste residue, alkaline solvents, and surfactants. The wastewater is collected and funneled into a sewage tank for treatment. After treatment, zero discharge is achieved, and the clean water is stored in the tank for reuse in the first rinse step of the product, with a connection reserved for further treatment in a pure water unit.

[0003] According to the sewage treatment process, the water-saving system for cleaning sewage treatment generally includes a wastewater tank, a coagulation reaction tank, an inclined tube / plate sedimentation tank, an intermediate water tank, a quartz sand filter, an activated carbon filter, a clear water tank, an ultrafiltration device and a reverse osmosis device, which are connected in sequence. The coagulation reaction tank is equipped with an automatic dosing system, and the sludge discharge pipe of the inclined tube / plate sedimentation tank is connected to the sludge treatment system. The treated water after being treated by the ultrafiltration device can be reused for water flushing in the first step of cleaning, and the treated water after being treated by the reverse osmosis device can be reused for pure water cleaning in the third step of cleaning. In this way, water-saving effects can be achieved, which can greatly reduce the waste of water resources, thereby better realizing energy-saving and environmentally friendly production.

[0004] However, the metal casting industry generally operates 24 hours a day, which means that high-pressure cleaners and the corresponding water-saving systems for cleaning wastewater treatment need to operate continuously. However, after a long period of operation, the inclined tube / plate sedimentation tank, the most important sedimentation equipment in the water-saving system, will inevitably accumulate a certain amount of sediment that is difficult to slide off on its own on the inclined surface of its inclined tubes / plates. It needs to be shut down and cleaned by special cleaning equipment. Otherwise, the sewage circulation treatment capacity will be reduced, affecting the sedimentation treatment efficiency. If the cleaning is carried out without stopping the machine, the existing cleaning equipment will cause the clear water above the sedimentation tank to become turbid, increasing the load on the subsequent filtration equipment. Therefore, it is urgent to develop a cleaning device that can have less impact on the supernatant liquid in the sedimentation tank when cleaning the inclined tubes / plates without stopping the machine, so as to ensure the long-term stable operation of the water-saving system for cleaning wastewater treatment. Summary of the Invention

[0005] In order to improve the problem that the water-saving system has a significant impact on the sewage sedimentation efficiency and sewage treatment efficiency when cleaning the sediment on the inclined surface of the inclined tube / plate, the present application provides a cleaning water-saving system.

[0006] The present application provides a water-saving cleaning system that adopts the following technical solutions: A cleaning and water-saving system comprises a wastewater tank, a coagulation reaction tank, a sedimentation tank, an intermediate water tank, a quartz sand filter, an activated carbon filter, a clear water tank, an ultrafiltration device, and a reverse osmosis device, which are sequentially connected. The coagulation reaction tank is provided with an automatic dosing system, the sedimentation tank is provided with a plurality of inclined tubes / plates arranged in an array, and the sludge discharge pipe of the sedimentation tank is connected to a sludge treatment system. The system is characterized in that a cleaning rod is provided above the sedimentation tank, and an elastic mesh is laid on the sedimentation slope of the inclined tube / plate, and the elastic mesh can be elastically stretched and reset in its extension direction. The lower end of the elastic mesh is fixedly connected to the lower end of the inclined tube / plate, and the upper end is fixedly connected to the cleaning rod. In the initial state, the portion of the elastic mesh corresponding to the inclined surface of the inclined tube / plate is stretched and adhered to the inclined surface, and the inclination angle of the portion extending beyond the upper end of the inclined tube / plate is smaller than the inclination angle of the inclined tube / plate. The sedimentation tank is provided with a cleaning control device for controlling the cleaning rod to move until the elastic mesh is completely parallel to the corresponding inclined tube / plate when cleaning the inclined tube / plate, and driving the cleaning rod to shake back and forth along the inclination direction of the inclined tube / plate.

[0007] Furthermore, the elastic mesh has a plurality of holes, and the hole diameter is larger than the maximum particle diameter of the sediment.

[0008] Furthermore, the cleaning control device includes: A horizontal movement mechanism is used to drive the cleaning rod to move horizontally to the cleaning station during cleaning. When the cleaning rod reaches the cleaning station, the elastic mesh on it is completely parallel to the corresponding inclined tube / plate; The oblique shaking mechanism is used to drive the cleaning rod to shake back and forth in the inclined direction of the inclined tube / plate settling slope.

[0009] Furthermore, the oblique shaking mechanism includes: Two guide frames are provided and are respectively arranged at both ends of the cleaning rod. The guide frames are provided with an oblique long groove parallel to the inclined surface of the inclined tube / plate settlement. The end of the cleaning rod is slidably arranged in the oblique long groove; A rotating shaft, rotatably disposed on the sedimentation tank; There are multiple shift rods fixed to the arcuate outer peripheral wall of the end of the rotating shaft at intervals; when the guide frame drives the cleaning rod to move to the cleaning station, the shift rods rotate with the rotating shaft and push the cleaning rod to slide upward in the oblique long groove; and The driving assembly is used to drive the rotating shaft to rotate.

[0010] Furthermore, the windward surface of the lever is set as an arc transition surface, and when the far end of the lever pushes the cleaning rod to move up to the maximum stroke, the elastic mesh does not reach the elastic limit, and the cleaning rod detaches from the far end of the lever.

[0011] Furthermore, the horizontal movement mechanism includes: A guide rail is horizontally arranged on the sedimentation tank; A slider is anti-slip and slides on the guide rail, and the guide frame is fixed to the slider; An in-place sensor is provided on the sedimentation tank or the guide rail; when the slider moves until the cleaning rod reaches the cleaning station, the in-place sensor is triggered; The linear drive component is used to drive the slider to slide on the guide rail and is electrically connected to the in-position sensor.

[0012] Furthermore, a sleeve is sleeved on the cleaning rod, and the upper end of the elastic mesh is fixed to the sleeve.

[0013] Furthermore, a pressure sensor is provided between the sleeve and the cleaning rod, the pressure sensor is distributed at least at both ends of the cleaning rod, and the pressure sensor is electrically connected to a maintenance alarm controller; The maintenance alarm controller is configured to output an alarm signal when the pressure value detected by the pressure sensor when the elastic mesh is in a static state is less than a preset threshold, indicating that the elastic mesh is partially damaged or elastically fatigued.

[0014] Furthermore, the top of the inclined tube / plate settling slope is provided with a rounded corner.

[0015] Furthermore, the water outlet of the ultrafiltration device is further connected to a first water return pipe, and the first water return pipe is connected to a water supply pipeline for flushing with recycled water; The water outlet end of the reverse osmosis device is also connected to a second water return pipe, and the second water return pipe is communicated with a water supply pipeline for pure water cleaning.

[0016] In summary, the beneficial technical effects of this application are: 1. By laying an elastic mesh cloth on the inclined surface of the inclined plate, the impact on the water flow between two adjacent inclined plates can be reduced during the operation of the sedimentation tank. When the inclined plates need to be cleaned, the cleaning rod is controlled to move to the cleaning station, so that the elastic mesh belt is parallel to and in contact with the inclined plates. The elastic mesh cloth is then driven to vibrate back and forth along the inclined direction of the inclined plates, which can effectively clean the sediment on the inclined plate settling slope. In addition, during the cleaning process, the direction of the deformation force is always parallel to the inclined plate settling slope, which has little disturbance to the water flow. The inclined plate settling slope can be cleaned online without stopping the machine or relying on external high-pressure water or high-pressure air flushing. 2. The elastic mesh adheres to the inclined surface of the inclined tube or inclined plate through its own elastic deformation force, and has a high degree of adhesion to the inclined tube or inclined plate, which improves the cleaning effect. It can also clean difficult-to-clean areas such as the bottom and edges of the inclined tube or inclined plate; 3. The cleaning control device of the present application does not need to wait for the inclined plates to become clogged before executing the cleaning operation. It can be executed on a scheduled basis or automatically according to a program design. It can basically keep the sediment on the inclined plates at a small level and can always maintain the water flow between two adjacent inclined plates, thereby ensuring that the sedimentation efficiency of the sedimentation tank is always maintained at an optimal state. 4. The cleaning rod is controlled by the horizontal moving mechanism to stop precisely at the cleaning station, and the elastic mesh is shaken back and forth in the inclined direction of the inclined plate by the oblique shaking mechanism, which can ensure the stable and effective cleaning of the elastic mesh on the inclined surface of the inclined plate; 5. By installing a sleeve on the cleaning rod and setting a pressure sensor between the two, the tensile deformation force of the elastic mesh belt can be monitored in real time. Once the elastic mesh is partially damaged or elastic fatigue occurs, the pulling force on the cleaning rod is reduced when it is deformed, which can be detected by the pressure sensor. The sound and light alarm will then sound an alarm, prompting the operator to promptly inspect and maintain the elastic mesh. If necessary, the machine can be stopped for replacement, thereby maintaining the long-term cleaning effect of the elastic mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a system schematic diagram of an embodiment of the present application; Figure 2 Schematic diagram of the cross-sectional structure of the sedimentation tank when the cleaning rod of the embodiment of the present application is in the initial state; Figure 3 This is a schematic structural diagram of the cleaning control device when the cleaning rod is in the cleaning station according to an embodiment of the present application; Figure 4 This is a structural diagram of an embodiment of the present application when the cleaning rod is in the cleaning position and the shifting rod shifts the cleaning rod to the highest position; Figure 5 This is a schematic structural diagram of the embodiment of the present application when the cleaning rod is driven to vibrate back and forth by a rotary drive member; Figure 6 It is a schematic cross-sectional structural diagram of the cleaning rod and sleeve according to an embodiment of the present application.

[0018] Description of reference numerals: 11. Wastewater tank; 12. Coagulation reaction tank; 13. Sedimentation tank; 14. Intermediate water tank; 15. Quartz sand filter; 16. Activated carbon filter; 17. Clear water tank; 18. Ultrafiltration device; 181. First return pipe; 19. Reverse osmosis device; 191. Second return pipe; 2. Inclined plate; 31. Cleaning rod; 32. Sleeve; 33. Pressure sensor; 4. Elastic mesh; 51. Guide frame; 511. Oblique slot; 52. Rotating shaft; 53. Driving lever; 61. Guide rail; 62. Slider; 63. Position sensor; 64. Linear drive element; 71. Rotary drive member; 72. Control lever. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0020] The embodiment of the present application discloses a water-saving cleaning system. Figure 1 It includes a wastewater tank 11, a coagulation reaction tank 12, a sedimentation tank 13, an intermediate water tank 14, a quartz sand filter 15, an activated carbon filter 16, a clean water tank 17, an ultrafiltration device 18, and a reverse osmosis device 19, which are connected in sequence. The coagulation reaction tank 12 is provided with an automatic dosing system, the sedimentation tank 13 is arrayed with multiple inclined tubes / plates, and the sludge discharge pipe of the sedimentation tank 13 is connected to a sludge treatment system. Moreover, the reverse osmosis device 19 can be further connected to a concentrated water evaporator to output pure water. The above-mentioned components are all existing technologies and can be fully implemented by those skilled in the art. There is no need to elaborate. In addition, the water outlet of the ultrafiltration device 18 is also connected to a first return water pipe 181, which is connected to a water supply pipeline for reclaimed water flushing; the water outlet of the reverse osmosis device 19 is also connected to a second return water pipe 191, which is connected to a water supply pipeline for pure water cleaning. The sewage treated by the cleaning water-saving system can be reused in different cleaning stages of the high-pressure cleaner according to the degree of treatment, which can greatly reduce the demand for existing clean water in the cleaning process, thereby achieving a cleaning water-saving effect, greatly reducing the waste of water resources, and thus better realizing energy-saving and environmentally friendly production.

[0021] More importantly, refer to Figure 2 and Figure 3 A cleaning rod 31 is installed above the sedimentation tank 13, and an elastic mesh 4 is laid on the sedimentation slope of the inclined tube / plate. The elastic mesh 4 can be elastically stretched and reset in its extension direction; the elastic mesh 4 has multiple holes, and the hole diameter is larger than the maximum particle size of the sediment.

[0022] The working principle of this application will now be explained in a common application scenario. It should be noted that this common implementation scheme cannot be used as a basis for understanding the essential features of the technical problem claimed to be solved by this application; it is merely exemplary. Specifically, in this embodiment, taking the sedimentation tank 13 as an example, a plurality of parallel inclined plates 2 are provided, and the inclined plates 2 have an inclination angle of 50° to 60°. Each inclined plate 2 corresponds to a plurality of elastic meshes 4. The elastic meshes 4 can be made directly from acid- and alkali-resistant elastic rubber, such as silicone rubber, EPDM rubber, fluororubber, or chloroprene rubber, or can be woven from elastic cord with a polyester wrapping. However, compared to elastic meshes 4 made from smooth elastic rubber, elastic meshes 4 woven from elastic cord have a larger external fiber surface area and are more effective in capturing sediment in sewage. This can improve the capture and sedimentation effect of the inclined plates 2 on small-sized sediment in the water to a certain extent, and can also increase the overall tensile strength of the elastic mesh 4, extending its service life. Therefore, in this embodiment, the elastic mesh 4 is woven from elastic cord.

[0023] In the specific configuration, the lower end of the elastic mesh 4 is fixedly connected to the lower end of the inclined tube / plate, and the upper end is fixedly connected to the cleaning rod 31. The top of the inclined tube / plate's settling slope is rounded to reduce damage to the elastic mesh 4. In the initial state, the portion of the elastic mesh 4 corresponding to the inclined tube / plate's settling slope is stretched and fits tightly against the settling slope, while the portion extending beyond the upper end of the inclined tube / plate has a smaller inclination angle than the inclined tube / plate. In other words, under normal operating conditions, the elastic mesh 4 is stretched by the cleaning rod 31, allowing most of it to fit tightly against the settling slope of the inclined plate 2, thereby reducing the elastic mesh 4's impact on the flow rate and flow smoothness between two adjacent inclined plates 2.

[0024] At the same time, the sedimentation tank 13 is provided with a cleaning control device for controlling the cleaning rod 31 to move until the elastic mesh 4 is completely parallel to the corresponding inclined tube / plate when cleaning the inclined tube / plate, and driving the cleaning rod 31 to shake back and forth along the inclination direction of the inclined tube / plate.

[0025] Therefore, when the sedimentation tank 13 needs to be cleaned after running for a certain period of time, the cleaning control device can be used to drive the cleaning rod 31 to move until the elastic mesh 4 is completely parallel to the corresponding inclined plate 2. At this time, the elastic mesh 4 still remains in a fit state with the inclined plate 2, and a certain amount of sediment attached to the elastic mesh 4 and the sedimentation slope of the inclined plate 2 where its holes are exposed falls off with the local retraction of the elastic mesh 4. Subsequently, the cleaning control device continues to control the cleaning rod 31 to shake back and forth along the inclination direction of the inclined plate 2, such as pushing the cleaning rod 31 to move away from the inclined plate 2. At this time, the elastic mesh 4 continues to be stretched, and the sediment on the sedimentation slope of the inclined plate 2 can be initially and slowly scraped upward; and when the cleaning rod 31 is released, the deformation force of the elastic mesh 4 drives it to recover, so that the elastic mesh 4 quickly scrapes downward on the sedimentation slope of the inclined plate 2, promoting the sediment on the sedimentation slope of the inclined plate 2 to flow to the bottom of the sedimentation tank 13, and the elastic mesh 4 can also shake off the fine particles attached to it when it recovers quickly; after such repeated reciprocating movements, the sediment on the sedimentation slope of the inclined plate 2 can be effectively cleaned.

[0026] During this process, since the elastic mesh 4 is always in contact with the sedimentation slope of the inclined plate 2, and the direction of its deformation force is always parallel to the sedimentation slope of the inclined plate 2, the elastic mesh 4 has little effect on the water flow distribution between the two adjacent inclined plates 2. Even if the sedimentation tank 13 is in operation, it will not cause major interference to the operation of the entire system. There is no need to shut down the machine, pump out the water in the sedimentation tank 13, and then clean it with water or air as in traditional cleaning technology. It can also clean difficult-to-clean areas such as the lower part and edge of the inclined plate 2. Therefore, the elastic mesh 4 set in this application has more obvious overall advantages in cleaning sediments.

[0027] Furthermore, it should be noted that, because the inclined tube's settling surface is curved or polygonal, the fit of the elastic mesh 4 to the inclined tube's settling surface is lower than that of the elastic mesh 4 to the inclined plate 2. This may cause excessive water flow in the inclined tube during actual operation. While this method can still clean sediment from the inclined tube's settling surface, its minimal impact on water flow is slightly inferior to that achieved by placing the elastic mesh 4 on the inclined plate 2. However, compared to common cleaning devices in the prior art, the overall beneficial effect of placing the elastic mesh 4 in the inclined tube is still superior in cleaning efficiency and minimal impact on water flow.

[0028] Furthermore, conventional cleaning techniques typically require the system to be shut down for cleaning only after the water flow channel between the inclined plates 2 becomes clogged. Clearly, the water flow between the two inclined plates 2 is significantly reduced for a considerable period prior to shutdown, resulting in the sedimentation efficiency of the sedimentation tank 13 failing to meet the intended design. However, the elastic mesh 4 pulling and recovery process in the present application can be performed without shutting down the sedimentation tank 13. Therefore, the cleaning control device does not need to wait for the inclined plates 2 to become clogged before executing the cleaning operation. Instead, the cleaning operation can be performed on a scheduled basis or automatically according to a program design. This essentially maintains a low level of sediment on the inclined plates 2 and consistently maintains the water flow between adjacent inclined plates 2, thereby ensuring that the sedimentation efficiency of the sedimentation tank 13 remains optimal.

[0029] In order to ensure that the elastic mesh 4 can move stably during the cleaning operation, refer to Figure 2 、 Figure 3 and Figure 4 , the above-mentioned cleaning control device includes: The horizontal movement mechanism is used to drive the cleaning rod 31 to move horizontally to the cleaning station during cleaning. When the cleaning rod 31 reaches the cleaning station, the elastic mesh 4 on it is completely parallel to the corresponding inclined tube / plate; The oblique shaking mechanism is used to drive the cleaning rod 31 to shake back and forth in the inclined direction of the inclined tube / plate settling slope.

[0030] Wherein, the oblique shaking mechanism includes: The guide frame 51 is provided with two and is arranged at both ends of the cleaning rod 31. The guide frame 51 is penetrated by an oblique long groove 511 parallel to the inclined surface of the inclined tube / plate settlement. The end of the cleaning rod 31 is slidably set in the oblique long groove 511.

[0031] The rotating shaft 52 is rotatably disposed on the sedimentation tank 13 , and is specifically disposed parallel to the cleaning rod 31 .

[0032] There are multiple levers 53 fixed at intervals to the arc-shaped outer peripheral wall of the end of the rotating shaft 52. When the guide frame 51 drives the cleaning rod 31 to move to the cleaning station, the lever 53 rotates with the rotating shaft 52 to push the cleaning rod 31 to slide upward in the oblique long groove 511. The windward surface of the lever 53 is set as an arc transition surface, and when the far end of the lever 53 pushes the cleaning rod 31 to move up to the maximum stroke, the elastic mesh 4 does not reach the elastic limit, and the cleaning rod 31 detaches from the far end of the lever 53.

[0033] The driving assembly is used to drive the rotating shaft 52 to rotate, and specifically can be a driving motor and a transmission structure, such as a belt transmission structure or a chain rotation structure, so that the driving motor can drive multiple rotating shafts 52 to rotate synchronously at the same time; it can be clearly seen that the driving assembly is an existing technology and can be fully implemented by those skilled in the art without further elaboration.

[0034] Among them, reference Figure 3 , the horizontal movement mechanism includes: The guide rail 61 is horizontally arranged on the sedimentation tank 13; The slider 62 is anti-slip and slides on the guide rail 61, and the guide frame 51 is fixed to the slider 62; The in-position sensor 63 is provided on the sedimentation tank 13 or the guide rail 61; when the slider 62 moves to the cleaning rod 31 and reaches the cleaning position, the in-position sensor 63 is triggered; The linear drive member 64 is used to drive the slider 62 to slide on the guide rail 61 and is electrically connected to the in-position sensor 63. The linear drive member 64 can be a common structure such as a linear motor, a screw slider 62 structure, an electric push rod, etc., but it must have a stop locking function to ensure the accurate positioning of the slider 62; and a linkage rod is fixed between the multiple sliders 62, so that a set of linear drive members 64 can realize the synchronous movement of multiple sliders 62; or in other embodiments, the multiple sliders 62 are divided into multiple groups of synchronous groups, each group of synchronous groups has more than three sliders 62, and each group of synchronous groups is driven to move by a linear drive member 64, so that multiple cleaning rods 31 can enter the cleaning station in batches, that is, to realize the staggered cleaning of the sedimentation slopes of multiple inclined plates 2 to ensure the sedimentation efficiency.

[0035] Thus, when the inclined surface of the inclined plate 2 needs to be cleaned, the linear drive member 64 drives the slider 62 toward the rotating shaft 52, so that the guide frame 51 thereon drives the cleaning rod 31 to move until the cleaning rod 31 reaches the cleaning position, at which point the in-position sensor 63 is triggered by the slider 62, and the linear drive member 64 is controlled to stop working. Subsequently, the drive assembly drives the rotating shaft 52 to rotate. As the rotating shaft 52 rotates, the multiple levers 53 at both ends of the rotating shaft 52 rotate accordingly, pushing the ends of the cleaning rod 31 to slide upward on the two guide frames 51 at both ends, so that the elastic mesh 4 fits the inclined surface of the inclined plate 2 and is stretched along the inclined direction of the inclined plate 2; when the rotating shaft 52 rotates until the distal end of the lever 53 passes over the cleaning rod 31, the cleaning rod 31 detaches from the distal end of the lever 53 and slides rapidly downward in the oblique slot 511 under the deformation force of the elastic mesh 4, achieving the cleaning effect of the inclined surface of the inclined plate 2 when the elastic mesh 4 recovers.

[0036] In order to achieve smooth sliding of the two ends of the cleaning rod 31 on the two guide frames 51, in another feasible embodiment, a tension spring is further connected between the cleaning rod 31 and the bottom of the guide frame 51, or a compression spring is arranged between the cleaning rod 31 and the top of the guide frame 51, so that the two ends of the cleaning rod 31 can more evenly withstand the elastic deformation force of the tension spring or the compression spring when sliding, thereby improving the overall stability of the cleaning rod 31 when sliding obliquely in the oblique long groove 511.

[0037] In addition, in other feasible embodiments, the lengths of the multiple levers 53 at the same end of the rotating shaft 52 can be different, so as to achieve different reciprocating strokes of the cleaning rod 31 when the rotating shaft 52 rotates, so as to promote the cleaning effect of the elastic mesh 4 on the settling slope of the inclined plate 2 under different degrees of stretching.

[0038] And, in another possible embodiment, referring to Figure 5 The mechanism that drives the cleaning rod 31 to slide obliquely back and forth on the guide frame 51 can also be a vertically arranged rotary drive member 71, the piston rod output end of which is fixedly connected to a control rod 72 perpendicular to it. The rotary drive member 71 can be a combination of an ordinary cylinder and a rotary cylinder, or a rotary cylinder. When the piston rod needs to move close to the bottom end, it is first rotated 90° to allow the control rod 72 to avoid the end of the cleaning rod 31. When the piston rod moves down to the point where the control rod 72 passes over the cleaning rod 31, it drives the control rod 72 to rotate in the opposite direction to just below the cleaning rod 31.

[0039] When the piston rod of the rotary drive member 71 drives the control block to move vertically away from the inclined plate 2, the control rod 72 drives the cleaning rod 31 to slide upward on the guide frame 51, and the distance between the cleaning rod 31 and the piston rod gradually increases. When the cleaning rod 31 moves up to the maximum stroke, the cleaning rod 31 also slides to the far end of the control rod 72, disengages from the control rod 72, and slides downward in the oblique slot 511. Then the piston rod moves down to the set position, and the rotary drive member 71 drives its piston rod to rotate 90 degrees to avoid the cleaning rod 31. When the control rod 72 passes through the cleaning rod 31, it drives the piston rod to rotate 90 degrees in the opposite direction and places the control rod 72 directly below the cleaning rod 31 to prepare for the next lifting of the cleaning rod 31. In this way, the elastic mesh 4 can also be shaken back and forth in the inclined direction of the inclined plate 2.

[0040] In addition, it is also considered that the elastic mesh 4 will inevitably suffer from elastic fatigue after being frequently stretched, and its elasticity will easily decay after being immersed in acidic and alkaline sewage for a long time. If not handled in time, it will affect the cleaning effect of the inclined plate 2.

[0041] For this purpose, refer to Figure 3 and Figure 6 A sleeve 32 is sleeved on the cleaning rod 31. Specifically, a plurality of sleeves 32 are provided, and the upper end of the elastic mesh 4 is fixed to the sleeve 32; and a pressure sensor 33 is provided between the sleeve 32 and the cleaning rod 31. The pressure sensors 33 are distributed at least at both ends of the cleaning rod 31, and one sleeve 32 corresponds to at least one pressure sensor 33. The pressure sensor 33 is electrically connected to the maintenance alarm controller; The maintenance alarm controller is configured to output an alarm signal when the pressure value detected by the pressure sensor 33 when the elastic mesh 4 is in a static state is less than a preset threshold value, indicating that the elastic mesh 4 is partially damaged or elastically fatigued. The static state can specifically be that the cleaning rod 31 is in the initial state; accordingly, the maintenance alarm controller can be electrically connected to the sound and light alarm.

[0042] Therefore, after the cleaning rod 31 is reset to its initial state, the elastic mesh 4 is in a static and stretched state. When the elastic mesh 4 is partially damaged or elastic fatigue occurs, the pulling force on the cleaning rod 31 is reduced when it is deformed, which can be detected by the pressure sensor 33 between the sleeve 32 and the cleaning rod 31, and then an alarm is sounded through the sound and light alarm, which can prompt the operator to inspect and maintain the elastic mesh 4 in time, and the machine can be stopped for replacement if necessary.

[0043] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cleaning and water-saving system, comprising a wastewater tank, a coagulation reaction tank, a sedimentation tank, an intermediate water tank, a quartz sand filter, an activated carbon filter, a clear water tank, an ultrafiltration device, and a reverse osmosis device connected in sequence, wherein the coagulation reaction tank is provided with an automatic dosing system, the sedimentation tank is arrayed with a plurality of inclined tubes / plates, and the sludge discharge pipe of the sedimentation tank is connected to a sludge treatment system, characterized in that: A cleaning rod is installed above the sedimentation tank, and an elastic mesh is laid on the sedimentation slope of the inclined tube / plate. The elastic mesh can be elastically stretched and reset in its extension direction; The lower end of the elastic mesh is fixedly connected to the lower end of the inclined tube / plate, and the upper end is fixedly connected to the cleaning rod. In the initial state, the portion of the elastic mesh corresponding to the inclined surface of the inclined tube / plate is stretched and adhered to the inclined surface, and the inclination angle of the portion extending beyond the upper end of the inclined tube / plate is smaller than the inclination angle of the inclined tube / plate. The sedimentation tank is provided with a cleaning control device for controlling the cleaning rod to move until the elastic mesh is completely parallel to the corresponding inclined tube / plate when cleaning the inclined tube / plate, and driving the cleaning rod to shake back and forth along the inclination direction of the inclined tube / plate.

2. A water-saving cleaning system according to claim 1, characterized in that: The elastic mesh is provided with a plurality of holes, and the hole diameters are larger than the maximum particle diameter of the sediment.

3. A water-saving cleaning system according to claim 1, characterized in that: The cleaning control device comprises: A horizontal movement mechanism is used to drive the cleaning rod to move horizontally to the cleaning station during cleaning. When the cleaning rod reaches the cleaning station, the elastic mesh on it is completely parallel to the corresponding inclined tube / plate; The oblique shaking mechanism is used to drive the cleaning rod to shake back and forth in the inclined direction of the inclined tube / plate settling slope.

4. A water-saving cleaning system according to claim 3, characterized in that: The oblique shaking mechanism comprises: Two guide frames are provided and are respectively arranged at both ends of the cleaning rod. The guide frames are provided with an oblique long groove parallel to the inclined surface of the inclined tube / plate settlement. The end of the cleaning rod is slidably arranged in the oblique long groove; A rotating shaft, rotatably disposed on the sedimentation tank; There are multiple shift rods fixed to the arcuate outer peripheral wall of the end of the rotating shaft at intervals; when the guide frame drives the cleaning rod to move to the cleaning station, the shift rods rotate with the rotating shaft and push the cleaning rod to slide upward in the oblique long groove; and The driving assembly is used to drive the rotating shaft to rotate.

5. A water-saving cleaning system according to claim 4, characterized in that: The windward surface of the lever is set as an arc transition surface, and when the far end of the lever pushes the cleaning rod to move up to the maximum stroke, the elastic mesh does not reach the elastic limit, and the cleaning rod detaches from the far end of the lever.

6. A water-saving cleaning system according to claim 4, characterized in that: The horizontal movement mechanism comprises: A guide rail is horizontally arranged on the sedimentation tank; A slider is anti-slip and slides on the guide rail, and the guide frame is fixed to the slider; An in-place sensor is provided on the sedimentation tank or the guide rail; when the slider moves until the cleaning rod reaches the cleaning station, the in-place sensor is triggered; The linear drive component is used to drive the slider to slide on the guide rail and is electrically connected to the in-position sensor.

7. A water-saving cleaning system according to any one of claims 1 to 6, characterized in that: A sleeve is sleeved on the cleaning rod, and the upper end of the elastic mesh is fixedly connected to the sleeve.

8. A water-saving cleaning system according to claim 7, characterized in that: A pressure sensor is provided between the sleeve and the cleaning rod, the pressure sensor being distributed at least at both ends of the cleaning rod, and the pressure sensor being electrically connected to a maintenance alarm controller; The maintenance alarm controller is configured to output an alarm signal when the pressure value detected by the pressure sensor when the elastic mesh is in a static state is less than a preset threshold, indicating that the elastic mesh is partially damaged or elastically fatigued.

9. A water-saving cleaning system according to claim 1, characterized in that: The top of the inclined tube / plate settling slope is provided with a rounded corner.

10. A water-saving cleaning system according to claim 1, characterized in that: The water outlet of the ultrafiltration device is also connected to a first water return pipe, which is connected to a water supply pipeline for flushing with recycled water; The water outlet end of the reverse osmosis device is also connected to a second water return pipe, and the second water return pipe is communicated with a water supply pipeline for pure water cleaning.

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