Wastewater treatment and recovery equipment for environment-friendly water treatment engineering

Abstract

The invention discloses wastewater treatment and recovery equipment for environment-friendly water treatment engineering, and belongs to the technical field of wastewater treatment. The device comprises a backflow guide frame, the top of the backflow guide frame is concavely provided with a water flowing channel, a first lifting frame is erected in the center of the top of the water flowing channel, a rotating belt is arranged at the top of the first lifting frame, a primary filtering belt strip is arranged between the first lifting frame and the water flowing channel in a sleeved mode, and a second lifting frame is erected at the bottom of the water flowing channel; the inner wall of the bottom outlet area of the water flowing channel is sleeved with an impeller; through the design of the backflow guide frame and the water flowing channel, wastewater flowing is accelerated, and the treatment efficiency is improved; the flexibility and adaptability of the device are enhanced through the double-power-source design, the sewage visible impurity filtering supervision system monitors impurity data in real time, discovers and treats abnormities in time, ensures the treatment stability, accurately controls the cleaning speed and the wastewater pumping amount through an automatic adjusting mechanism, reduces manual intervention, and achieves reasonable utilization of resources, energy conservation and emission reduction. And sustainable development is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to wastewater treatment and recovery equipment used in environmental protection water treatment projects. Background Art

[0002] Wastewater treatment and recycling equipment is one of the key means to achieve the goal of recycling water resources.

[0003] In conjunction with the above content, it should be explained that: Chinese patent with announcement number CN114377470A discloses a method for recycling and treating construction wastewater in an environmentally friendly manner. The recycling and treatment of construction wastewater is completed by filtering the construction wastewater through a primary filtration reservoir, a filter press screen and a fine filtration screen in sequence, so that the method for recycling and treating construction wastewater in an environmentally friendly manner has the effect of significantly improving the efficiency of wastewater recycling and treatment. However, during actual use, affected by the amount of water used in the project, the above-mentioned device is limited in the treatment of large-scale and continuous wastewater, which can easily cause the service life of the filter components and the filtering effect to decay in stages, resulting in efficiency problems in the environmentally friendly recycling and treatment of large amounts of construction wastewater.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a wastewater treatment and recovery device for environmental protection water treatment projects to solve the problems raised.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wastewater treatment and recovery equipment for environmental protection water treatment engineering, comprising a reflux guide frame, a water flow channel is provided in a recessed manner at the top of the reflux guide frame, a lifting frame 1 is provided at the center of the top of the water flow channel, a rotating belt is provided at the top of the lifting frame 1, a primary filter belt strip is sleeved between the lifting frame 1 and the water flow channel, a lifting frame 2 is provided at the bottom of the water flow channel, and an impeller is sleeved on the inner wall of the outlet area at the bottom of the water flow channel;

[0007] A secondary filter strip is sleeved between the second support frame and the water flow channel, and a group of diverter discs are arranged on the bottom frame of the first support frame and the second support frame, and a built-in water pump is installed inside the diverter disc;

[0008] A water impurity sensor 1 is arranged at the top entrance area of ​​the water flow channel, which is used to collect the total amount of visible filtered impurities in the total amount of sewage passing within the time threshold; a water impurity sensor 2 is arranged at the bottom outlet area of ​​the water flow channel, which is used to collect the change in visible filtered impurities in the total amount of purified sewage passing within the time threshold; an integrated sensor facing the primary filter strip is arranged at the top of one end of the gantry, which is used to collect the impurity retention parameters on the surface of the primary filter strip and the secondary filter strip within the time threshold, and send the total amount of visible filtered impurities, the change in visible filtered impurities and the impurity retention parameters to the database of the sewage treatment center, forming a sewage visible impurity filtration supervision system.

[0009] Furthermore, an upper ring bin is recessed on the top inner wall of the water flow channel and is socketed with the primary filter strip, and a lower ring bin is recessed on the bottom inner wall of the water flow channel and is socketed with the secondary filter strip, and a drainage groove is provided at the bottom of the upper ring bin, which passes through the lower ring bin and faces the impeller.

[0010] Furthermore, annular grooves are recessed on the inner walls on both sides of the top and bottom of the water flow channel, a limit frame connected to the diverter disc is provided in the middle of the annular groove, multiple groups of filter ports are penetrated on the frame bodies on both sides of the limit frame, and snap-ons close to the multiple groups of annular grooves are recessed on the frame bodies on both sides of the reflux guide frame.

[0011] Furthermore, the primary filter strip has the same structure as the secondary filter strip, rubber strips are arranged on both sides of the primary filter strip, and a plurality of transmission rollers connected to the return guide frame are arranged on the inner wall of the primary filter strip.

[0012] Furthermore, a gantry located above the top of the diverter disc is arranged on the top of the lifting frame one, shafts which are sleeved with the inner walls of the gantry are arranged inside the two sides of the rotating belt, and a micromotor is arranged at one end of the shaft, a lifting cylinder connected to the other end of the rotating belt shaft is arranged on the outer wall of the gantry, and a water spray plate facing the primary filter strip is arranged on the frame of the lifting frame one.

[0013] Furthermore, an external box is arranged on the top of the second supporting frame, which is located above the diverter disc and close to the first supporting frame, and an extended baffle is hinged on the bottom of one side of the external box.

[0014] Furthermore, one end of the diverter disc is provided with an inclined surface in contact with the outer wall of the primary filter strip, and one end of the diverter disc is provided with a pressure-resistant disc body in contact with the inner wall of the primary filter strip, the built-in water pump is embedded in the pressure-resistant disc body, and filtrate ports connected to the built-in water pump are provided on both sides of the pressure-resistant disc body. The built-in water pump is connected to the water spray plate pipeline, and a water spray plate facing the secondary filter strip is provided on the lifting frame 2.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention effectively intercepts and removes visible impurities in environmental wastewater through multi-stage filtration of primary filter strips and secondary filter strips, thereby improving the efficiency and quality of wastewater treatment. The design of rotating belts and brushes can perform secondary cleaning on the surface of the filter strips to ensure the continuous and efficient use of the filter strips. The design of the reflux guide frame and the water flow channel can generate acceleration power in the flow of wastewater, thereby improving the treatment efficiency. The dual power source design ensures the stable rotation of the filter strips under normal and abnormal conditions, and improves the flexibility and adaptability of the device. The entire treatment process performs multi-stage filtration and cleaning on the wastewater, effectively reducing the emission of pollutants and meeting environmental protection requirements.

[0017] 2. The present invention can monitor and calculate the total amount, change and retention parameters of visible filtered impurities in real time through the sewage visible impurity filtration supervision system, provide accurate data support and comparative analysis, timely discover and deal with filtration abnormalities, ensure the stability and reliability of wastewater treatment, and automatically adjust the working status of the micromotor, servo motor and built-in water pump according to the control signal of the supervision system to achieve precise control of the filter belt cleaning speed and wastewater extraction volume. The automated adjustment mechanism helps to maintain the continuous and efficient operation of the filter belt and the entire treatment system, reduce manual intervention and maintenance costs, and achieve rational use of resources and energy conservation and emission reduction through intelligent supervision and automated adjustment, which helps promote sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the return guide frame of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the primary filter strip of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the lifting frame 1 of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the diverter disc of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the lifting frame 2 and the secondary filter strip of the present invention;

[0025] Figure 7 It is a schematic diagram of the connection structure between the impeller and the servo motor of the present invention.

[0026] Figure numerals: 1. Reflux guide frame; 101. Water flow channel; 102. Upper ring bin; 103. Limiting frame; 104. Ring groove; 105. Lower ring bin; 106. Drainage groove; 2. Primary filter strip; 201. Rubber strip; 202. Transmission roller; 3. Lifting frame one; 301. Gantry; 302. Lifting cylinder; 303. Rotating belt; 304. Water spraying plate; 4. Secondary filter strip; 5. Lifting frame two; 501. External box; 502. Extension baffle; 6. Diverter disc; 601. Pressure-resistant disc; 602. Built-in water pump; 603. Filtrate outlet; 7. Impeller. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figure 1 - Figure 7 As shown, this embodiment is a wastewater treatment and recovery equipment for environmental protection water treatment projects, including a reflux guide frame 1, a water flow channel 101 is recessed at the top of the reflux guide frame 1, a lifting frame 3 is arranged at the center of the top of the water flow channel 101, a rotating belt 303 is arranged on the top of the lifting frame 3, a primary filter strip 2 is sleeved between the lifting frame 3 and the water flow channel 101, a lifting frame 2 5 is arranged at the bottom of the water flow channel 101, an impeller 7 is sleeved on the inner wall of the bottom outlet area of ​​the water flow channel 101, and the arrangement device is arranged according to the specific actual installation area. When the environmental protection wastewater passes through the reflux guide frame 1 after being collected, the environmental protection wastewater is affected by the slope of the water flow channel 101, and generates accelerated flow power. It passes through the primary filter strip 2, the annular groove 104, the secondary filter strip 4 and the impeller 7 along the water flow channel 101 in sequence, and then flows into the water storage tank below the reflux guide frame 1, waiting for the next step of processing.

[0029] The top inner wall of the water channel 101 is recessed with an upper ring bin 102 that is sleeved with the primary filter strip 2, and the bottom inner wall of the water channel 101 is recessed with a lower ring bin 105 that is sleeved with the secondary filter strip 4. The bottom of the upper ring bin 102 is provided with a drainage groove 106 that penetrates the lower ring bin 105 and faces the impeller 7. The top outlets of the upper ring bin 102 and the lower ring bin 105 are both facing the impeller 7, and their openings are affected by the reflux guide frame 1, which promotes the circulation of the rings. The waste water passes through a micro waterfall structure, accompanied by the continuous movement of the primary filter strips 2 and the secondary filter strips 4 from the inside to the outside, reducing the entry of environmentally friendly waste water, and the bottom entrances of the upper ring bin 102 and the lower ring bin 105 are covered and protected by the restricted position frame 103, the diverter disc 6 and the pressure-resistant disc body 601. The top of the diverter disc 6 is provided with a cleaning surface at the same angle as the primary filter strips 2 and the secondary filter strips 4, which helps to discharge the cleaned waste water into the water channel 101.

[0030] Annular grooves 104 are recessed on the inner walls on both sides of the top and bottom of the water flow channel 101, a limit frame 103 is provided in the middle of the annular groove 104 and is sleeved with the diverter disc 6, multiple groups of filter ports are penetrated on the frame bodies on both sides of the limit frame 103, and recessed snap-fits close to the multiple groups of annular grooves 104 are provided on the frame bodies on both sides of the reflux guide frame 1.

[0031] The primary filter strip 2 has the same structure as the secondary filter strip 4. Rubber strips 201 are provided on both sides of the primary filter strip 2. A plurality of drive rollers 202 connected to the reflux guide frame 1 are provided on the inner wall of the primary filter strip 2. When the environmental wastewater passes through the primary filter strip 2, the visible filtered impurities in the environmental wastewater are intercepted by the primary filter strip 2 and retained on the surface of the primary filter strip 2. As the primary filter strip 2 continues to rotate, the retained visible filtered impurities are pulled and transported upward. An external coarse impurity cleaning device is provided on the top of the reflux guide frame 1. The device is installed near the primary filter strip 2 through a bayonet, and is used to actively clean and discharge larger visible filtered impurities retained on the surface of the primary filter strip 2.

[0032] A gantry 301 located above the top of the diverter disc 6 is arranged on the top of the lifting frame 3, and shafts sleeved with the inner wall of the gantry 301 are arranged inside the two sides of the rotating belt 303, and a micro motor is arranged at one end of the shaft, and a lifting cylinder 302 connected to the other end of the shaft of the rotating belt 303 is arranged on the outer wall of the gantry 301, and a water spray plate 304 facing the primary filter strip 2 is arranged on the frame of the lifting frame 3, and the rotating belt 303 on the lifting frame 3 is driven by a micro motor, and the micro motor is connected to the shaft of the rotating belt 303 through related accessories. The related accessories include couplings, screws, kits and other commonly used traditional mechanical components in this field, which are only used for parts The transmission connection between the parts is not limited to this. The relevant connection methods are adapted, replaced and matched according to the actual connection requirements between the parts. The rotating belt 303 rotates along the gantry 301. The surface of the rotating belt 303 can be additionally equipped with a brush according to actual needs, and a rack structure is provided on the surface of the rotating belt 303 for contact and scraping the surface of the primary filter belt 2, so as to remove the residual impurities after filtering and retention on the surface for secondary removal, and push it out along one side of the gantry 301 to be collected by an external collection container. At the same time, the water spray plate 304 located on the lifting frame 3 sprays water to rinse the surface of the primary filter belt 2 after the secondary cleaning.

[0033] Embodiment 2: This embodiment is a wastewater treatment and recovery equipment used in environmental water treatment projects, including a secondary filter strip 4 sleeved between a lifting frame 2 5 and a water flow channel 101, and a group of diverter discs 6 are arranged on the bottom frame of the lifting frame 1 3 and the lifting frame 2 5, and a built-in water pump 602 is installed inside the diverter disc 6.

[0034] An external box 501 is arranged on the top of the lifting frame 2 5, which is located above the diverter disc 6 and close to the lifting frame 1 3. An extended baffle 502 is hinged at the bottom of one side of the external box 501. When the environmental wastewater passes through the secondary filter strip 4, the finer visible filter impurities in the environmental wastewater are intercepted and retained by the secondary filter strip 4. As the secondary filter strip 4 continues to rotate, it is pulled close to the external box 501 area and cleaned by the external fine impurity cleaning device installed on the reflux guide frame 1. The external fine impurity cleaning device is installed on the bayonet close to the secondary filter strip 4, and is used to actively clean the finer visible filter impurities retained on the surface of the secondary filter strip 4, and transfer them to the external finer visible filter impurity collection container.

[0035] Another set of rotating belts 303, micromotors and lifting cylinders 302 are arranged inside the external box 501, which are used to actively scrape and clean the surface of the secondary filter strips 4 passing through. Due to the presence of fine visible filter impurities on the surface of the secondary filter strips 4, the secondary filter strips 4 are covered by the external box 501, and the width of the external box 501 body is larger than the gantry 301. The water spray plate 304 on the lifting frame 5 is used to rinse the cleaned surface of the secondary filter strips 4 with water.

[0036] One end of the diverter disc 6 is provided with an inclined surface in contact with the outer wall of the primary filter strip 2, and one end of the diverter disc 6 is provided with a pressure-resistant disc body 601 in contact with the inner wall of the primary filter strip 2, and a built-in water pump 602 is embedded in the pressure-resistant disc body 601, and filtrate ports 603 connected to the built-in water pump 602 are provided on the disc bodies on both sides of the pressure-resistant disc body 601. The built-in water pump 602 is connected to the water spray plate 304 pipeline, and a water spray plate 304 facing the secondary filter strip 4 is provided on the lifting frame 25. The environmentally friendly wastewater intercepted by the preliminary filtration enters the annular groove 104 along the water flow channel 101, contacts the outer wall of the pressure-resistant disc body 601, and after being restricted and guided along the outer wall of the pressure-resistant disc body 601, enters the two arc channels of the annular groove 104 respectively, and finally converges in the outer area of ​​the diverter disc 6 and flows to the next group of annular grooves 104 again.

[0037] The plurality of filter ports guide part of the environmental wastewater passing through the limiting frame 103 to approach the filtrate port 603. The limiting frame 103 and the diverter disc 6 form a circular ring structure, which effectively prevents the impurities in the environmental wastewater from being retained or entering along the filter port when flowing along the annular groove 104. The built-in water pump 602 is connected to the filtrate port 603 through pipe fittings, and is connected to the plurality of water spray plates 304 through pipe fittings to boost the water flow.

[0038] The impeller 7 is sleeved on the inner wall of the bottom of the water channel 101. Figure 7 As shown, both sides of the impeller 7 are provided with lead screws, gears and magnetic couplings which are transmission-connected to the drive rollers 202 of the primary filter strips 2 and the secondary filter strips 4; a servo motor embedded in the reflux guide frame 1 is provided between the primary filter strips 2 and the secondary filter strips 4; the output end of the servo motor is provided with relevant accessories which are connected with the magnetic coupling to form a dual power source; under normal conditions, the impeller 7 is rotated by utilizing the continuous environmentally friendly wastewater in the water channel 101 to rotate, and the primary transmission chain formed by the lead screws, gears and magnetic couplings which are mutually matched and connected is adjusted by the magnetic coupling to drive the primary filter strips 2 and the secondary filter strips 4 to rotate continuously; when the servo motor is in the starting state, it is transmission-connected to the magnetic coupling through relevant accessories, and is transmission-connected to the primary filter strips 2 and the secondary filter strips 4 under the adjustment of the magnetic coupling to form a secondary transmission chain, which is used to actively drive the accelerated rotation of the primary filter strips 2 and the secondary filter.

[0039] Embodiment 3: This embodiment is a wastewater treatment and recovery equipment for environmental protection water treatment projects, including a water impurity sensor 1 provided at the top inlet area of ​​the water flow channel 101, which is used to collect the total amount of visible filtered impurities in the total amount of sewage passing within the time threshold, and a water impurity sensor 2 is provided at the bottom outlet area of ​​the water flow channel 101, which is used to collect the change in visible filtered impurities in the total amount of purified sewage passing within the time threshold. The top of one end of the gantry 301 is provided with an integrated sensor facing the primary filter strip 2, which is used to collect the impurity retention parameters on the surface of the primary filter strip 2 and the secondary filter strip 4 within the time threshold, and send the total amount of visible filtered impurities, the change in visible filtered impurities and the impurity retention parameters to the database of the sewage treatment center, forming a sewage visible impurity filtration monitoring system.

[0040] The sewage visible impurity filtration monitoring system obtains one end time of the device operation during the use of the device, marks it as a time threshold, and obtains the total amount of visible filtered impurities, the change in visible filtered impurities and impurity retention parameters based on the time threshold.

[0041] Among them, the total amount of visible filtered impurities is expressed as the comprehensive estimated total amount range of visible filtered impurities in the environmental wastewater passing through the water channel 101 area within the time threshold, and the average of the maximum and minimum values ​​is taken and marked as GZ, which is collected by a water impurity sensor 1, which is installed on the inner walls on both sides of the top entrance area of ​​the water channel 101. The water impurity sensor 1 is one or more of a turbidity sensor, a suspended matter sensor and an infrared scanning sensor, and is not limited to this. It can be replaced according to actual needs.

[0042] The change in visible filtered impurities is expressed as a comprehensive estimated margin range of the amount of visible impurities in the environmental wastewater after multi-stage filtration within the time threshold. The average of the maximum and minimum values ​​is taken and marked as GB. It is collected by the water impurity sensor 2, which is installed at the bottom outlet of the water channel 101 near the impeller 7. The water impurity sensor 1 is one or more of a turbidity sensor, a suspended matter sensor and an infrared scanning sensor, and is not limited to this. It can be replaced according to actual needs.

[0043] The impurity retention parameter is expressed as the range of the estimated amount of visible filtered impurities retained by the environmental wastewater jointly filtered by the primary filter strip 2 and the secondary filter strip 4 within the time threshold. The average of the maximum and minimum values ​​is taken and marked as ZL. It is collected by a comprehensive sensor, and the comprehensive sensor is composed of an industrial camera and a weighing sensor. The industrial camera is installed on the gantry 301 and the top outer wall of the external box 501 near the entrance of the water channel 101. The weighing sensor is installed on the outer wall of one side of the reflux guide frame 1 and is connected to multiple groups of external impurity cleaning equipment, which are used to estimate the comprehensive amount of retained and cleaned impurities.

[0044] After obtaining the total visible filtered impurities GZ, the visible filtered impurities change GB and the impurity retention parameter ZL, the database uses the formula R=(GZ×a)-(ZL×b), where R is represented by the filtration conversion value, and a and b are respectively represented by the proportional coefficients of the total visible filtered impurities GZ and the impurity retention parameter ZL. The filtration conversion value R is compared with GB. If R is less than GB, it means that there is an abnormality in the filtration, and a control signal is generated. According to the control signal, a "filtration stage 003 / filtration abnormality / plan adjustment" style text is generated and displayed on the display screen of the sewage treatment center, and the micromotor and servo motor are controlled to start.

[0045] The micromotor drives the rotating belt 303 to accelerate its rotation, and the lifting cylinder 302 drives the rotating belt 303 to further slide down, accelerating the cleaning of visible impurities on the surface of the primary filter belt 2 and the secondary filter belt 4. The servo motor cooperates with multiple sets of transmission rollers 202 through related accessories and magnetic couplings to drive and connect with each other, thereby driving the primary filter belt 2 and the secondary filter belt 4 to accelerate their rotation, which is used to accelerate the cleaning of retained intercepted impurities. The built-in water pump 602 also accelerates the extraction of filtered environmentally friendly wastewater to increase the spray volume of the water spray plate 304, thereby cleaning the primary filter belt 2 and the secondary filter belt 4 and maintaining their continuous use efficiency.

[0046] If R is greater than GB, no signal is generated.

[0047] In combination with Example 1 and Example 2, the present invention adopts multi-stage filtration technology to effectively remove visible impurities in wastewater through primary and secondary filter strips 4, improve treatment efficiency and quality, and design a rotating belt 303 and a brush to perform secondary cleaning of the filter strips to ensure continuous and efficient use; the reflux guide frame 1 and the water flow channel 101 are designed to accelerate the flow of wastewater and improve treatment efficiency; the dual power source design enhances the flexibility and adaptability of the device.

[0048] The sewage visible impurity filtration supervision system monitors impurity data in real time, promptly detects and handles anomalies, ensures treatment stability, and accurately controls the cleaning speed and wastewater extraction volume through an automated adjustment mechanism, thereby reducing human intervention, achieving rational use of resources and energy conservation and emission reduction, and promoting sustainable development.

[0049] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A wastewater treatment and recovery device for environmental protection water treatment engineering, comprising a reflux guide frame (1), characterized in that: The top of the return guide frame (1) is recessed to form a water channel (101); a lifting frame (3) is arranged at the center of the top of the water channel (101); a rotating belt (303) is arranged at the top of the lifting frame (3); a primary filtering belt (2) is sleeved between the lifting frame (3) and the water channel (101); a lifting frame (5) is arranged at the bottom of the water channel (101); and an impeller (7) is sleeved on the inner wall of the outlet area at the bottom of the water channel (101); A secondary filter strip (4) is sleeved between the second support frame (5) and the water flow channel (101), and a group of diverter discs (6) are provided on the bottom frame of the first support frame (3) and the second support frame (5), and a built-in water pump (602) is installed inside the diverter disc (6); A water impurity sensor 1 is arranged at the top inlet area of ​​the water flow channel (101) for collecting the total amount of visible filtered impurities in the total amount of sewage passing within a time threshold. A water impurity sensor 2 is arranged at the bottom outlet area of ​​the water flow channel (101) for collecting the change in the visible filtered impurities in the total amount of purified sewage passing within a time threshold. A comprehensive sensor facing the primary filter strip (2) is arranged at the top of one end of the gantry (301) for collecting the impurity retention parameters on the surface of the primary filter strip (2) and the secondary filter strip (4) within the time threshold, and the total amount of visible filtered impurities, the change in visible filtered impurities and the impurity retention parameters are sent to the database of the sewage treatment center, thereby forming a sewage visible impurity filtration monitoring system.

2. A wastewater treatment and recovery equipment for environmental protection water treatment engineering according to claim 1, characterized in that: An upper ring bin (102) which is sleeved with the primary filter strip (2) is recessed on the top inner wall of the water flow channel (101), a lower ring bin (105) which is sleeved with the secondary filter strip (4) is recessed on the bottom inner wall of the water flow channel (101), and a drainage groove (106) which passes through the lower ring bin (105) and faces the impeller (7) is provided at the bottom of the upper ring bin (102).

3. A wastewater treatment and recovery equipment for environmental protection water treatment engineering according to claim 2, characterized in that: The inner walls of both sides of the top and bottom of the water flow channel (101) are recessed with annular grooves (104), a limit frame (103) sleeved with the diverter disc (6) is provided in the middle of the annular groove (104), multiple groups of filter ports are penetrated on the frame bodies on both sides of the limit frame (103), and the frame bodies on both sides of the return guide frame (1) are recessed with snap-on sockets close to the multiple groups of annular grooves (104).

4. The wastewater treatment and recovery equipment for environmental protection water treatment engineering according to claim 1, characterized in that: The primary filter strip (2) has the same structure as the secondary filter strip (4), rubber strips (201) are arranged on both sides of the primary filter strip (2), and a plurality of groups of transmission rollers (202) connected to the return guide frame (1) are arranged on the inner wall of the primary filter strip (2).

5. The wastewater treatment and recovery equipment for environmental protection water treatment engineering according to claim 1 is characterized in that: The top of the lifting frame (3) is provided with a gantry (301) located above the top of the diverter disc (6); shafts sleeved with the inner wall of the gantry (301) are provided inside the two sides of the rotating belt (303); a micro motor is provided at one end of the shaft; a lifting cylinder (302) connected to the other end of the shaft of the rotating belt (303) is provided on the outer wall of the gantry (301); and a water spray plate (304) facing the primary filtering belt (2) is provided on the frame of the lifting frame (3).

6. The wastewater treatment and recovery equipment for environmental protection water treatment engineering according to claim 1, characterized in that: The top of the second supporting frame (5) is provided with an external box (501) located above the diverter disc (6) and close to the first supporting frame (3), and an extension baffle (502) is hingedly connected to the bottom of one side of the external box (501).

7. The wastewater treatment and recovery equipment for environmental protection water treatment engineering according to claim 1 is characterized in that: One end of the diverter disc (6) is provided with an inclined surface in contact with the outer wall of the primary filter strip (2), and one end of the diverter disc (6) is provided with a pressure-resistant disc body (601) in contact with the inner wall of the primary filter strip (2), the built-in water pump (602) is embedded in the pressure-resistant disc body (601), and filtrate ports (603) connected to the built-in water pump (602) are provided on the disc bodies on both sides of the pressure-resistant disc body (601).

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