A cleaning water saving system

Abstract

The application relates to a cleaning water-saving system which comprises a cleaning rod arranged above a sedimentation tank, an elastic mesh cloth closely arranged on a sedimentation slope of a slant pipe / plate, the elastic mesh cloth being elastically stretched and reset in the extension direction; the lower end of the elastic mesh cloth is fixedly connected with the lower end of the slant pipe / plate, and the upper end is fixedly connected with the cleaning rod; in the initial state, the elastic mesh cloth is tightly and closely arranged on the sedimentation slope corresponding to the position of the sedimentation slope of the slant pipe / plate, and the inclination angle of the position exceeding the upper end of the slant pipe / plate is smaller than the inclination angle of the slant pipe / plate; the cleaning control device is arranged on the sedimentation tank and is used for controlling the cleaning rod to move to the position where the elastic mesh cloth is completely parallel to the corresponding slant pipe / plate and driving the cleaning rod to reciprocatingly shake along the inclination direction of the slant pipe / plate when the slant pipe / plate is cleaned. The on-line cleaning of the slant pipe / plate can be realized through the reciprocating shaking of the elastic mesh cloth along the inclination direction when the elastic mesh cloth is tightly and closely arranged on the sedimentation slope of the slant pipe / plate, and the influence on the water flow is small.

Description

TECHNICAL FIELD

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

[0002] In industrial production, the high-pressure cleaning machine is mainly used for cleaning the surface of cast iron (aluminum). The cleaning process is divided into three steps. The first step is to flush with medium water. The second step is to clean with solvent. The third step is to clean with pure water. The sewage discharged after flushing mainly contains harmful substances such as oil, waste residue, alkaline solvent and surface active substances. After the sewage is collected and discharged into a sewage pool, it is treated and then discharged. After treatment, zero discharge is realized. The clean water is stored in a clean water pool and reused for the first step of flushing and a connection interface for a pure water unit for further treatment.

[0003] According to the sewage treatment process, the cleaning sewage treatment water-saving system generally includes a waste water pool, a coagulation reaction tank, an inclined pipe / plate sedimentation tank, an intermediate water pool, a quartz sand filter, an activated carbon filter, a clean water pool, an ultrafiltration device and a reverse osmosis device which are sequentially connected. An automatic dosing system is arranged in the coagulation reaction tank. The sludge discharge pipe of the inclined pipe / plate sedimentation tank is connected to a sludge treatment system. The treated water treated by the ultrafiltration device can be reused for the first step of cleaning with medium water. The treated water treated by the reverse osmosis device can be reused for the third step of cleaning with pure water. Thus, the cleaning water-saving effect can be achieved, and the waste of water resources can be greatly reduced, thereby better realizing energy-saving and environment-friendly production.

[0004] However, for the metal casting industry, it is generally 24 hours of all-weather production, which means that the high-pressure cleaning machine and the corresponding cleaning sewage treatment water-saving system need to be operated continuously. However, the most important settling device, the inclined pipe / plate sedimentation tank, in the water-saving system will inevitably accumulate a certain amount of sediment on the inclined surface of the inclined pipe / plate after a long time of work. The sediment needs to be cleaned by a special cleaning device after shutdown, otherwise it will reduce the sewage flow treatment capacity and affect the sedimentation treatment efficiency. If the cleaning is performed without shutdown, the existing cleaning device will cause the clear water above the sedimentation tank to be turbid, and the load of the subsequent filtration equipment will be increased. Therefore, it is urgent to research a cleaning device that can clean the inclined pipe / plate without affecting the clear liquid in the sedimentation tank, to ensure the long-term stable operation of the cleaning sewage treatment water-saving system. SUMMARY

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

[0006] The cleaning water-saving system provided by the present application adopts the following technical scheme:

[0007] The utility model provides a kind of cleaning water-saving system, including waste water pool, coagulation reaction tank, sedimentation tank, intermediate water pool, quartz sand filter, activated carbon filter, clear water pool, ultrafiltration device and reverse osmosis device in turn, the coagulation reaction tank is provided with automatic dosing system, multiple inclined pipes / plates are arrayed in sedimentation tank and the sludge discharge pipe of sedimentation tank is connected with sludge treatment system, characterized by, cleaning rod is erected above the sedimentation tank, and elastic mesh cloth is attached and laid on the settlement slope of inclined pipe / plate, the elastic mesh cloth can be elastically stretched and reset in its extension direction;

[0008] The lower end of the elastic mesh cloth is fixedly connected with the lower end of the inclined pipe / plate, and the upper end is fixedly connected with the cleaning rod, in the initial state, the elastic mesh cloth is tightly attached to the settlement slope corresponding to the part of the settlement slope of the inclined pipe / plate, and the inclination angle of the part exceeding the upper end of the inclined pipe / plate is smaller than the inclination angle of the inclined pipe / plate.

[0009] The sedimentation tank is provided with a cleaning control device for controlling the cleaning rod to move to the elastic mesh cloth and the corresponding inclined pipe / plate to be completely parallel during cleaning of the inclined pipe / plate, and driving the cleaning rod to reciprocate in the inclined direction of the inclined pipe / plate.

[0010] Further, the elastic mesh cloth has a plurality of holes, and the hole diameter is greater than the maximum particle size of the sediment.

[0011] Further, the cleaning control device comprises:

[0012] A horizontal moving mechanism is used to drive the cleaning rod to move horizontally to a cleaning station during cleaning, and when the cleaning rod reaches the cleaning station, the elastic mesh cloth thereon is completely parallel to the corresponding inclined pipe / plate.

[0013] An inclined shaking mechanism is used to drive the cleaning rod to reciprocate in the inclined direction of the settlement slope of the inclined pipe / plate.

[0014] Further, the inclined shaking mechanism comprises:

[0015] A guide frame is provided with two and is arranged at both ends of the cleaning rod, and a slanting long slot parallel to the settlement slope of the inclined pipe / plate is formed through the guide frame, and the end portion of the cleaning rod is slidingly arranged in the slanting long slot.

[0016] A rotating shaft is rotatably arranged on the sedimentation tank.

[0017] A plurality of push rods are fixedly connected to the end arc surface outer peripheral wall of the rotating shaft at intervals, and when the guide frame drives the cleaning rod to move to the cleaning station, the push rods push the cleaning rod to slide upward in the slanting long slot when the rotating shaft rotates.

[0018] A driving assembly is used to drive the rotating shaft to rotate.

[0019] Further, the windward surface of the pushing rod is provided with a circular arc transition surface, and when the pushing rod pushes the cleaning rod to move upward by the maximum stroke, the elastic mesh cloth does not reach the elastic limit, and the cleaning rod is separated from the distal end of the pushing rod.

[0020] Further, the horizontal moving mechanism comprises:

[0021] A guide rail is horizontally arranged on the sedimentation tank.

[0022] A sliding block is anti-slip sliding on the guide rail, and the guide frame is fixedly connected to the sliding block.

[0023] A position sensor is arranged on the sedimentation tank or the guide rail, and the position sensor is triggered when the sliding block moves to the position where the cleaning rod reaches the cleaning station.

[0024] A linear driving member is used to drive the sliding block to slide on the guide rail and is electrically connected to the position sensor.

[0025] Further, a sleeve is sleeved on the cleaning rod, and the upper end of the elastic mesh cloth is fixedly connected to the sleeve.

[0026] Further, a pressure sensor is arranged between the sleeve and the cleaning rod, and 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.

[0027] The maintenance alarm controller is configured to output an alarm signal when the pressure value detected by the pressure sensor when the elastic mesh cloth is in a static state is less than a preset threshold value, prompting that the elastic mesh cloth is partially damaged or elastic fatigue.

[0028] Further, the top of the inclined pipe / plate sedimentation slope is provided with a round corner.

[0029] Further, the water outlet end of the ultrafiltration device is further connected with a first backwater pipe, and the first backwater pipe is communicated with a water supply pipeline for reclaimed water flushing.

[0030] The water outlet end of the reverse osmosis device is further connected with a second backwater pipe, and the second backwater pipe is communicated with a water supply pipeline for pure water cleaning.

[0031] In summary, the beneficial technical effects of the present application are:

[0032] 1. By adhering and laying the elastic mesh cloth on the inclined plate sedimentation slope, the influence on the water flow between two adjacent inclined plates can be reduced during the operation of the sedimentation tank; when the inclined plate needs to be cleaned, the cleaning rod is controlled to move to the cleaning station, so that the elastic mesh belt is parallel and adheres to the inclined plate, and then the elastic mesh cloth is driven to reciprocate along the inclined direction of the inclined plate, so that the sediment on the inclined plate sedimentation slope can be effectively cleaned; and during the cleaning process, the deformation force always acts in a direction parallel to the inclined plate sedimentation slope, and the disturbance to the water flow is small, so that online cleaning of the inclined plate sedimentation slope can be realized without stopping and without the aid of external high-pressure water or high-pressure gas flushing.

[0033] 2. The elastic mesh cloth adheres to the sedimentation slope of the inclined tube or inclined plate through its own elastic deformation force, has high adhesion to the inclined tube or inclined plate, and has better cleaning effect, and can also clean the areas that are difficult to clean, such as the lower part and the edge of the inclined tube or inclined plate.

[0034] 3. The cleaning control device of the present application can be executed at a fixed time or automatically according to the program design without waiting for the inclined plate to be blocked before execution, so that the sediment on the inclined plate can be maintained at a small degree, the water flow between two adjacent inclined plates can be maintained all the time, and the sedimentation efficiency of the sedimentation tank can be maintained in a good state all the time.

[0035] 4. The cleaning rod is accurately stopped at the cleaning station by the horizontal moving mechanism, and the elastic mesh cloth is reciprocated in the inclined direction of the inclined plate by the oblique shaking mechanism, so that the stable and effective cleaning of the elastic mesh cloth on the inclined plate sedimentation slope can be ensured.

[0036] 5. By sleeving a sleeve on the cleaning rod and arranging a pressure sensor between the sleeve and the cleaning rod, the tensile deformation force of the elastic mesh belt can be monitored in real time, and once the elastic mesh cloth is partially damaged or has elastic fatigue, the pulling force of the cleaning rod when the elastic mesh cloth deforms decreases, which can be detected by the pressure sensor, and then an audible and visual alarm is sounded to prompt the operator to maintain and repair the elastic mesh cloth in time, and the machine can be stopped for replacement if necessary, so that the long-term cleaning effect of the elastic mesh cloth can be maintained. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a system schematic diagram of an embodiment of the present application;

[0038] Figure 2 is a cross-sectional structural schematic diagram of a sedimentation tank when the cleaning rod of an embodiment of the present application is in an initial state;

[0039] Figure 3 is a structural schematic diagram of a cleaning control device when the cleaning rod of an embodiment of the present application is in a cleaning station;

[0040] Figure 4is a structural schematic view of the cleaning rod in the highest position when the cleaning rod is pushed to the highest position by the push rod in the cleaning position of the embodiment of the present application;

[0041] Figure 5 is a structural schematic view of the cleaning rod being driven to reciprocate by the rotary driving member in the embodiment of the present application;

[0042] Figure 6 is a sectional structural schematic view of the cleaning rod and the sleeve in the embodiment of the present application.

[0043] Explanation of reference signs:

[0044] 11, wastewater tank; 12, coagulation reaction tank; 13, sedimentation tank; 14, intermediate water tank; 15, quartz sand filter; 16, activated carbon filter; 17, clean water tank; 18, ultrafiltration device; 181, first backwater pipe; 19, reverse osmosis device; 191, second backwater pipe;

[0045] 2, inclined plate;

[0046] 31, cleaning rod; 32, sleeve; 33, pressure sensor;

[0047] 4, elastic mesh cloth;

[0048] 51, guide frame; 511, inclined long slot; 52, rotating shaft; 53, push rod;

[0049] 61, guide rail; 62, sliding block; 63, in-place sensor; 64, linear driving member;

[0050] 71, rotary driving member; 72, control rod. DETAILED DESCRIPTION

[0051] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0052] The present application discloses a kind of cleaning water-saving systems. Refer to Figure 1It includes a wastewater pool 11, a coagulation reaction tank 12, a sedimentation tank 13, an intermediate water pool 14, a quartz sand filter 15, an activated carbon filter 16, a clean water pool 17, an ultrafiltration device 18 and a reverse osmosis device 19 which are sequentially communicated, the coagulation reaction tank 12 is provided with an automatic dosing system, the sedimentation tank 13 is arranged with a plurality of inclined pipes / plates in an array and a sludge discharge pipe of the sedimentation tank 13 is connected with a sludge treatment system, and the reverse osmosis device 19 can be further connected with a concentrated water evaporator to output pure water; each component is a prior art and can be implemented by those skilled in the art without further description. In addition, the water outlet end of the ultrafiltration device 18 is further connected with a first backwater pipe 181 which is communicated with a water supply pipeline for reclaimed water washing; the water outlet end of the reverse osmosis device 19 is further connected with a second backwater pipe 191 which is communicated with a water supply pipeline for pure water cleaning. The treated wastewater of the cleaning water-saving system can be reused to different cleaning stages of the high-pressure cleaning machine according to the treatment degree, which can greatly reduce the demand for clean water in the cleaning process, thereby realizing the cleaning water-saving effect and greatly reducing the waste of water resources, so as to better realize energy-saving and environment-friendly production.

[0053] More importantly, with reference to Figure 2 and Figure 3 , the sedimentation tank 13 is arranged with a cleaning rod 31 above, the inclined surface of the inclined pipe / plate is arranged with an elastic mesh cloth 4, and the elastic mesh cloth 4 can be elastically stretched and reset in the extension direction.

[0054] Now, the working principle of the present application will be described in a common application scenario. It should be noted that this common embodiment cannot be used as a basis for identifying the necessity features for understanding the technical problems claimed by the present application, and it is only a demonstration. Specifically, in this embodiment, only a plurality of parallel arranged inclined plates 2 are arranged in the sedimentation tank 13, and the inclined angle of the inclined plate 2 is 50°-60°; one inclined plate 2 corresponds to a plurality of elastic mesh cloths 4, and the elastic mesh cloth 4 can be directly made of acid and alkali resistant elastic rubber, such as silicone rubber, ethylene-propylene-diene rubber, fluororubber, and chloroprene rubber, or it can be woven by elastic rope with polyester wrapping outside. However, compared with the elastic mesh cloth 4 made of smooth elastic rubber, the elastic mesh cloth 4 woven by elastic rope has a larger fiber surface area outside, and has a better capturing effect on the sediment in the wastewater, which can improve the capturing and settling effect of the inclined plate 2 on small size sediment in water to a certain extent, and can also improve the tensile strength of the elastic mesh cloth 4 as a whole and prolong its service life. Therefore, in this embodiment, the elastic mesh cloth 4 is woven by elastic rope.

[0055] And in the specific configuration, the lower end of the elastic mesh 4 is fixedly connected with the lower end of the inclined pipe / plate, and the upper end is fixedly connected with the cleaning rod 31, and the top of the inclined surface of the inclined pipe / plate is provided with a round corner to reduce the damage to the elastic mesh 4; in the initial state, the elastic mesh 4 is tightly attached to the settling inclined surface of the inclined pipe / plate corresponding to the position of the inclined surface, and the inclination angle of the part exceeding the upper end of the inclined pipe / plate is smaller than the inclination angle of the inclined pipe / plate. That is, in the normal working condition, the elastic mesh 4 is in a stretched state under the pulling of the cleaning rod 31, so that most of it can be tightly attached to the settling inclined surface of the inclined plate 2 to reduce the influence of the elastic mesh 4 on the water flow velocity and flow stability between the adjacent two inclined plates 2.

[0056] At the same time, the sedimentation tank 13 is provided with a cleaning control device for controlling the cleaning rod 31 to move to the state that the elastic mesh 4 is completely parallel to the corresponding inclined pipe / plate, and driving the cleaning rod 31 to reciprocate along the inclined direction of the inclined pipe / plate when the inclined pipe / plate is cleaned.

[0057] Therefore, when the sedimentation tank 13 needs to be cleaned after a certain period of operation, the cleaning rod 31 can be driven to move to the state that the elastic mesh 4 is completely parallel to the corresponding inclined plate 2 by the cleaning control device, at this time the elastic mesh 4 still maintains the state of being attached to the inclined plate 2, and a certain amount of sediment attached to the settling inclined surface of the inclined plate 2 exposed on the elastic mesh 4 and the holes falls with the local retraction of the elastic mesh 4. Subsequently, the cleaning control device continues to control the cleaning rod 31 to reciprocate along the inclined direction of the inclined plate 2, for example, to push the cleaning rod 31 to move away from the inclined plate 2, at this time the elastic mesh 4 continues to be stretched, and can preliminarily scrape the sediment on the settling inclined surface of the inclined plate 2 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 rapidly scrapes downward on the settling inclined surface of the inclined plate 2, promotes the sediment on the settling inclined surface of the inclined plate 2 to flow downward of the sedimentation tank 13, and the fine particles attached to the elastic mesh 4 can also be shaken off when the elastic mesh 4 rapidly recovers; after such reciprocating movement for several times, the sediment on the settling inclined surface of the inclined plate 2 can be effectively cleaned.

[0058] In this process, since the elastic mesh 4 is always attached to the settling inclined surface of the inclined plate 2, and the direction of the deformation force is always parallel to the settling inclined surface of the inclined plate 2, the influence of the elastic mesh 4 on the water flow distribution between the adjacent two inclined plates 2 is small, and even if the sedimentation tank 13 is in the running state, it will not cause great disturbance to the operation of the whole system; and it is not necessary to stop the machine, pump out the water in the sedimentation tank 13, and then clean by water flushing or air blowing as in the traditional cleaning technology, and the areas such as the lower part and the edge of the inclined plate 2 which are difficult to clean can also be cleaned, so the overall advantage of the elastic mesh 4 provided in the application is more obvious when cleaning the sediment.

[0059] In addition, it needs to be explained that, since the settling slope of the inclined pipe is a curved surface or a multi-surface, the fit of the elastic mesh cloth 4 with the settling slope of the inclined pipe is lower than the fit of the elastic mesh cloth 4 with the settling slope of the inclined plate 2. In actual operation, it may cause excessive surge of water flow in the inclined pipe, although it can achieve the cleaning of the sediment on the settling slope of the inclined pipe, but the effect of less influence on water flow is slightly inferior to arranging the elastic mesh cloth 4 on the inclined plate 2. However, compared with the cleaning device in the prior art, the cleaning efficiency and the overall beneficial effect of less influence on water flow of arranging the elastic mesh cloth 4 in the inclined pipe are still better.

[0060] In addition, in the conventional cleaning technology, the cleaning operation is usually performed after the water flow passage between the inclined plates 2 is blocked, obviously, the water flow between the two inclined plates 2 is significantly reduced for a long time before shutdown, which leads to that the sedimentation efficiency of the sedimentation tank 13 cannot reach the expected design. The pulling and restoring process of the elastic mesh cloth 4 in the present application can be performed without stopping the sedimentation tank 13, therefore, the cleaning control device does not need to wait for the inclined plate 2 to be blocked before performing the cleaning operation, and can be performed at a fixed time or automatically according to the program design, that is, the sediment on the inclined plate 2 can be basically maintained at a small degree, and the water flow between the adjacent two inclined plates 2 can be maintained all the time, thereby ensuring that the sedimentation efficiency of the sedimentation tank 13 is always kept in a good state.

[0061] In order to ensure that the elastic mesh cloth 4 can stably operate during the cleaning operation, with reference to Figure 2 , Figure 3 and Figure 4 , the above cleaning control device comprises:

[0062] A horizontal moving mechanism for driving the cleaning rod 31 to horizontally move to a cleaning position during cleaning, when the cleaning rod 31 reaches the cleaning position, the elastic mesh cloth 4 thereon is completely parallel to the corresponding inclined pipe / plate;

[0063] An oblique shaking mechanism for driving the cleaning rod 31 to reciprocate in the inclined direction of the settling slope of the inclined pipe / plate.

[0064] The oblique shaking mechanism comprises:

[0065] A guide frame 51 provided with two and arranged at both ends of the cleaning rod 31, the guide frame 51 is provided with a slanting long slot 511 parallel to the settling slope of the inclined pipe / plate, and the end of the cleaning rod 31 is slidingly arranged in the slanting long slot 511.

[0066] A rotating shaft 52 rotatably arranged on the sedimentation tank 13, specifically parallel to the cleaning rod 31.

[0067] The plurality of push rods 53 are fixedly connected to the arc outer circumferential wall of the end of the rotating shaft 52. When the guide frame 51 drives the cleaning rod 31 to move to the cleaning position, the push rod 53 pushes the cleaning rod 31 to slide upward in the inclined long groove 511 when the rotating shaft 52 rotates. The windward surface of the push rod 53 is provided with a circular arc transition surface. When the distal end of the push rod 53 pushes the cleaning rod 31 to move upward by the maximum stroke, the elastic mesh cloth 4 does not reach the elastic limit, and the cleaning rod 31 is separated from the distal end of the push rod 53.

[0068] The driving assembly is used to drive the rotating shaft 52 to rotate. Specifically, it 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. It can be clearly understood that the driving assembly is prior art, and those skilled in the art can realize it without further description.

[0069] Referring to Figure 3 , the horizontal moving mechanism comprises:

[0070] The guide rail 61 is horizontally arranged on the sedimentation tank 13.

[0071] The sliding block 62 is anti-slip sliding on the guide rail 61, and the guide frame 51 is fixedly connected to the sliding block 62.

[0072] The in-place sensor 63 is arranged on the sedimentation tank 13 or the guide rail 61. When the sliding block 62 moves to the cleaning position of the cleaning rod 31, the in-place sensor 63 is triggered.

[0073] The linear driving part 64 is used to drive the sliding block 62 to slide on the guide rail 61, and is electrically connected with the in-place sensor 63. The linear driving part 64 can be a linear motor, a screw sliding block 62 structure, an electric push rod or other common structures, but must have a stop locking function to ensure the accurate positioning of the sliding block 62. A linkage rod is fixedly connected between the plurality of sliding blocks 62, so that one set of linear driving parts 64 can realize the synchronous movement of the plurality of sliding blocks 62. Or in other embodiments, the plurality of sliding blocks 62 are divided into a plurality of same groups. Each same group has three or more sliding blocks 62, and each same group is driven to move by one linear driving part 64. The plurality of cleaning rods 31 can enter the cleaning position in batches, that is, the inclined surfaces of the plurality of inclined plates 2 are cleaned at different times to ensure the sedimentation efficiency.

[0074] Thus, when the inclined plate 2 needs to be cleaned, the linear drive 64 drives the slider 62 to move towards the rotating shaft 52, so that the guide frame 51 on it drives the cleaning rod 31 to move, until the cleaning rod 31 reaches the cleaning position, the in-place sensor 63 is triggered by the slider 62, and the linear drive 64 is controlled to stop working. Subsequently, the driving assembly drives the rotating shaft 52 to rotate, and when the rotating shaft 52 rotates, the plurality of push rods 53 at both ends of the rotating shaft 52 follow the rotation and can push the cleaning rod 31 at both ends to slide upward on the two guide frames 51 at both ends, so that the elastic mesh cloth 4 is attached to the inclined plate 2 and is stretched along the inclined direction of the inclined plate 2; when the rotating shaft 52 rotates to the distal end of the push rod 53 beyond the cleaning rod 31, the cleaning rod 31 is separated from the distal end of the push rod 53, and under the action of the deformation force of the elastic mesh cloth 4, the cleaning rod 31 quickly slides downward in the inclined long groove 511, realizing the cleaning effect of the elastic mesh cloth 4 on the inclined plate 2.

[0075] Moreover, in order to realize the smooth sliding of the cleaning rod 31 at both ends on the two guide frames 51, in another possible 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 cleaning rod 31 can bear the elastic deformation force of the tension spring or the compression spring more uniformly when sliding, improving the stability of the cleaning rod 31 as a whole when sliding obliquely in the inclined long groove 511.

[0076] In addition, in other possible embodiments, the lengths of the plurality of push rods 53 at the same end of the rotating shaft 52 can be different, so as to realize the displacement of the cleaning rod 31 with different reciprocating strokes when the rotating shaft 52 rotates, so as to promote the cleaning effect of the elastic mesh cloth 4 on the inclined plate 2 under different stretching degrees.

[0077] In addition, in another possible embodiment, referring to Figure 5 , the mechanism for driving the cleaning rod 31 to slide obliquely on the guide frame 51 can also be a vertically arranged rotary drive 71, the piston rod output end of which is fixedly connected with a control rod 72 perpendicular thereto. The rotary drive 71 can be a combination of a common cylinder and a rotary cylinder, or a rotary cylinder, and needs to realize that when the piston rod moves close to the bottom end, it is first rotated by 90° to make the control rod 72 avoid the end of the cleaning rod 31, and when the piston rod moves downward to make the control rod 72 pass the cleaning rod 31, the control rod 72 is driven to rotate in the opposite direction to be directly below the cleaning rod 31.

[0078] When the piston rod of the rotary drive 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 at this time, the distance between the cleaning rod 31 and the piston rod gradually increases; when the cleaning rod 31 moves to the maximum stroke, the cleaning rod 31 also slides to the distal end of the control rod 72 and is separated from the control rod 72 to slide downward in the inclined long groove 511; then the piston rod moves downward to the set position, the rotary drive 71 drives the piston rod to rotate 90° to avoid the cleaning rod 31, and after the control rod 72 passes through the cleaning rod 31, the piston rod is driven to rotate 90° in the opposite direction again, and the control rod 72 is located directly below the cleaning rod 31, so as to prepare for the next lifting of the cleaning rod 31. Thus, the elastic mesh cloth 4 can also realize reciprocating shaking in the inclined direction of the inclined plate 2.

[0079] In addition, it is also considered that after the elastic mesh cloth 4 is frequently stretched, it will inevitably have elastic fatigue, and after being immersed in sewage with acidic or alkaline properties for a long time, its elasticity will also easily decay, and if not handled in time, it will affect the cleaning effect of the inclined plate 2.

[0080] Therefore, with reference 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 cloth 4 is fixedly connected to the sleeve 32; and a pressure sensor 33 is arranged between the sleeve 32 and the cleaning rod 31, the pressure sensor 33 is distributed at least at both ends of the cleaning rod 31, and one sleeve 32 corresponds to at least one pressure sensor 33, and the pressure sensor 33 is electrically connected with a maintenance alarm controller.

[0081] 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 cloth 4 is in a static state is less than a preset threshold value, prompting that the elastic mesh cloth 4 is locally damaged or has elastic fatigue, and the static state can be that the cleaning rod 31 is in an initial state. Correspondingly, the maintenance alarm controller can be electrically connected with an audible and visual alarm.

[0082] Thus, after the cleaning rod 31 is reset to the initial state, the elastic mesh cloth 4 is in a static stretched state, when the elastic mesh cloth 4 is locally damaged or has elastic fatigue, the pulling force of the cleaning rod 31 when the elastic mesh cloth 4 deforms is reduced, which can be detected by the pressure sensor 33 between the sleeve 32 and the cleaning rod 31, and then an audible and visual alarm is given, which can prompt the operator to timely maintain and repair the elastic mesh cloth 4, and if necessary, the machine can be stopped for replacement.

[0083] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Unless otherwise defined, the terms "first", "second" or "third" and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. The terms "one", "another", "an" or "some" as well as similar referents in the context of describing the specification and claims are to be construed to be open-ended, i.e., to cover both singular and plural referents unless otherwise indicated. The terms "including", "containing" or "comprising" and the like are not intended to exclude other integers or steps, but to "include" or "comprise" other integers or steps unless otherwise indicated. The terms "connected", "coupled" or "pathway" and the like are not limited to direct connections, couplings or pathways, but can also include indirect connections, couplings or pathways unless otherwise indicated.

[0084] The above are only preferred embodiments of the present application, not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A water-saving cleaning 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 equipped with an automatic dosing system, and the sedimentation tank has multiple inclined tubes / plates arranged in an array, and the sludge discharge pipe of the sedimentation tank is connected to a sludge treatment system, characterized in that, The cleaning rod is arranged above the sedimentation tank, and the elastic mesh cloth is arranged on the inclined surface of the inclined pipe / plate; The lower end of the elastic mesh cloth is fixed to the lower end of the inclined pipe / plate, and the upper end is fixed to the cleaning rod; in the initial state, the elastic mesh cloth is tightly arranged on the inclined surface of the inclined pipe / plate, and the inclination angle of the part exceeding the upper end of the inclined pipe / plate is smaller than the inclination angle of the inclined pipe / plate; The cleaning control device is arranged on the sedimentation tank and is used for controlling the cleaning rod to move to the position where the elastic mesh cloth is parallel to the inclined pipe / plate and driving the cleaning rod to reciprocate along the inclined direction of the inclined pipe / plate during cleaning; The cleaning control device comprises: The horizontal moving mechanism is used for driving the cleaning rod to move horizontally to the cleaning position during cleaning, and the elastic mesh cloth on the cleaning rod is parallel to the inclined pipe / plate during cleaning; The oblique shaking mechanism is used for driving the cleaning rod to reciprocate along the inclined direction of the inclined surface of the inclined pipe / plate; The oblique shaking mechanism comprises: The guide frame is arranged on the upper end of the cleaning rod and is provided with two oblique long grooves which are parallel to the inclined surface of the inclined pipe / plate; The rotating shaft is arranged on the sedimentation tank; The driving assembly is used for driving the rotating shaft to rotate; The horizontal moving mechanism comprises: The guide rail is arranged horizontally on the sedimentation tank; The sliding block is arranged on the guide rail and is fixed to the guide frame; The in-place sensor is arranged on the sedimentation tank or the guide rail and is triggered when the sliding block moves to the position where the cleaning rod reaches the cleaning position; The linear driving element is used for driving the sliding block to slide on the guide rail and is electrically connected to the in-place sensor. The elastic mesh cloth is provided with a plurality of holes, and the hole diameter is greater than the maximum particle size of the precipitate.

2. A cleaning water saving system according to claim 1, wherein The windward surface of the poking rod is provided with a circular arc transition surface, and when the distal end of the poking rod pushes the cleaning rod to move upward by the maximum stroke, the elastic mesh cloth does not reach the elastic limit, and the cleaning rod is separated from the distal end of the poking rod.

3. A cleaning water saving system according to claim 1, wherein, The sleeve is arranged on the cleaning rod, and the upper end of the elastic mesh cloth is fixed to the sleeve.

4. A cleaning water saving system according to any one of claims 1 to 3, wherein, The pressure sensor is arranged between the sleeve and the cleaning rod, and the pressure sensor is arranged at least at the two ends of the cleaning rod.

5. A cleaning water saving system according to claim 4, wherein, The maintenance alarm controller is configured to output an alarm signal when the pressure value detected by the pressure sensor is less than the preset threshold when the elastic mesh cloth is in the static state, indicating that the elastic mesh cloth is partially damaged or elastic fatigue. The top of the inclined surface of the inclined pipe / plate is provided with a round corner.

6. The cleaning water saving system according to claim 1, wherein, The water outlet end of the ultrafiltration device is further connected with a first backwater pipe, and the first backwater pipe is communicated with the water supply pipeline for washing with reclaimed water.

7. The cleaning water saving system according to claim 1, wherein, The water outlet end of the reverse osmosis device is further connected with a second backwater pipe, and the second backwater pipe is communicated with the water supply pipeline for washing with pure water. ​

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