An environmental protection filtering and cleaning device for water pollution

Abstract

This invention discloses an environmental protection filtration and cleaning device for water pollution, belonging to the field of wastewater treatment technology. It includes a filter box with an inlet on one side of the top and an outlet on the lower side away from the inlet. Inside the filter box, a conveyor roller is rotatably mounted, with a mesh belt fitted between the rollers. A collection hopper is located inside the filter box, below the inlet, and positioned inside the mesh belt. By placing the collection hopper below the inlet and inside the mesh belt, the filtered water can be directly collected and discharged through a conduit. This prevents impurities from vertically penetrating the filter mesh and entering the double-layer mesh belt, eliminating interference from impurities on the conveyor roller's transmission, ensuring the stability of the mesh belt's operation, and extending the service life of the mesh belt and conveyor roller. Furthermore, the addition of a filter screen at the end of the conduit allows for secondary filtration of the filtered water, further improving the filtration effect and preventing fine impurities from being discharged with the purified water.

Description

Technical Field

[0001] This invention relates to a filtration and cleaning device, and more particularly to an environmental protection filtration and cleaning device for water pollution, belonging to the field of wastewater treatment technology. Background Technology

[0002] Currently, in the field of wastewater treatment, mesh belt filters are commonly used to filter wastewater. Because mesh belt filters use a double-layer mesh belt structure, during the filtration process, some small impurities can easily penetrate vertically through the filter mesh and enter the inner layer of the mesh belt. This is not only difficult to clean, but also easily interferes with the transmission of the conveyor rollers, affecting the stability and service life of the mesh belt. At the same time, although existing equipment is equipped with scrapers to remove impurities from the surface of the mesh belt, some impurities can still remain inside the mesh. When the mesh belt circulates to below the feed inlet, the residual impurities will be impacted by the backflow of the filtered wastewater and fall back into the filtered clean water, causing secondary pollution and significantly reducing the filtration effect. In addition, traditional filtration equipment usually requires a separate drive and control mechanism to achieve conveying and impurity discharge in the impurity discharge stage. This not only makes the control process complex and inconvenient to operate, but also increases the energy consumption and operating costs of the equipment.

[0003] Therefore, an environmental protection filtration and cleaning device for water pollution is designed to optimize the above-mentioned problems. Summary of the Invention

[0004] The main objective of this invention is to provide an environmentally friendly filtration and cleaning device for water pollution. By installing a collection hopper below the inlet and inside the mesh belt, filtered water can be directly collected by the hopper and discharged through a conduit. This prevents impurities from vertically penetrating the filter mesh and entering the double-layer mesh belt from the source, eliminating interference from impurities on the conveyor rollers and ensuring the stability of the mesh belt operation. It also extends the service life of the mesh belt and conveyor rollers. Furthermore, a filter screen is added to the end of the conduit for secondary filtration of the filtered water, further improving the filtration effect and preventing fine impurities from being discharged with the clean water. A brush roller, rotating and attached to the mesh belt surface, is installed inside the filter box and at the bottom of the scraper. Combined with the backwash water pipe and pumping mechanism, a dual cleaning method of brushing and high-pressure backwashing effectively removes residual impurities from the mesh belt surface and mesh openings. This comprehensive cleaning method is more thorough than traditional single scraper cleaning, effectively preventing secondary pollution caused by residual impurities falling into the clean water due to the reverse water flow when the mesh belt circulates to the bottom of the feed inlet. It maintains the filtration performance of the mesh belt at all times. Through a drive mechanism composed of a motor, gear set, pulley set and belt, multiple operations such as mesh belt conveying and filtration, impurity scraping and discharge, and brush roller rotation washing can be realized simultaneously. At the same time, the drive mechanism can also control the water pumping mechanism composed of cylinder, piston, connecting rod, etc., to provide backwashing power for the backwash water pipe. The entire equipment does not require separate drive and control components for each functional mechanism, simplifying the control process of the equipment and greatly improving the ease of operation. At the same time, it reduces the investment in power components, reduces the production and manufacturing costs of the equipment, and reduces the subsequent energy consumption and maintenance costs, making it more practical.

[0005] The objective of this invention can be achieved by adopting the following technical solution: An environmental protection filtration and cleaning device for water pollution includes a filter box, an inlet on one side of the top of the filter box, an outlet on the lower side of the filter box away from the inlet, a conveying roller rotatably arranged inside the filter box, a mesh belt sleeved between the conveying rollers, and a collection hopper arranged inside the filter box and below the inlet, with the collection hopper placed inside the mesh belt. The filter box is equipped with a rotating brush roller, a fixed scraper, and a backwash pipe. Multiple nozzles are installed on the side of the backwash pipe facing the mesh belt. A water pumping mechanism is installed on the outside of the filter box, which is connected to the backwash pipe. An impurity receiving plate is installed inside the filter box and below the mesh belt. The impurity receiving plate has a rotating spiral conveyor rod inside, and a drive mechanism is set on the outside of the filter box. The drive mechanism is connected to the conveying roller, brush roller, spiral conveyor rod and pumping mechanism respectively.

[0006] Preferably, the scraper is arranged parallel to the length direction of the mesh belt, and the length of the scraper is adapted to the width of the mesh belt. The scraper is inclined at the top of the brush roller, and the bottom end of the scraper is inclined towards the lower part of the impurity receiving plate.

[0007] Preferably, the backwash pipe is located inside the mesh belt, the nozzle is a high-pressure atomizing nozzle, multiple nozzles are linearly distributed at equal intervals on the backwash pipe, and the spray direction of the nozzles is opposite to the movement direction of the mesh belt.

[0008] Preferably, the drive mechanism includes a motor, a drive gear, a driven gear, a drive pulley, a driven pulley, and a belt. The motor is fixedly installed on the outer wall of the filter box. The drive gear is fixedly installed on the output shaft end of the motor and is fixedly connected to the end of the spiral conveyor rod. The driven gear is fixedly installed on the end of the brush roller and meshes with the drive gear. Both ends of the brush roller are fixedly installed with drive pulleys. The driven pulleys are fixedly installed on both ends of one of the conveyor rollers. A belt is sleeved between the drive pulley and the driven pulley and is connected by belt drive.

[0009] Preferably, the pumping mechanism includes a cylinder, a piston, a connecting rod, a rectangular frame plate, and a lever. The cylinder is fixed to the outer wall of the filter box, the piston is slidably disposed inside the cylinder, one end of the connecting rod is fixedly connected to the outer side of the piston, and the end of the connecting rod away from the piston extends to the outside of the cylinder and is fixedly connected to the rectangular frame plate. The lever is eccentrically fixed to the outer wall of the drive pulley, and the end of the lever away from the drive pulley extends to the inside of the rectangular frame plate and slides with the rectangular frame plate. The outer wall of the cylinder is connected to an inlet pipe and a drain pipe, respectively. The end of the inlet pipe away from the cylinder is connected to the inside of the collection hopper, and the end of the drain pipe away from the cylinder is connected to the backwash pipe. Both the inlet pipe and the drain pipe are fixedly installed with a one-way valve.

[0010] Preferably, a conduit is connected to the bottom of the side of the collecting hopper, the end of the conduit away from the collecting hopper is connected to the drain outlet, and a filter screen is installed at the end of the conduit. A precision filter screen is fixedly installed at the end of the inlet pipe near the collecting hopper, and the pore size of the precision filter screen is smaller than the pore size of the filter screen installed inside the conduit.

[0011] Preferably, the lever has a cylindrical structure, and a limiting block is fixed at the end of the lever away from the drive pulley, with the inner side wall of the limiting block fitting against the outer side wall of the lever.

[0012] Preferably, a drain port corresponding to the impurity receiving plate is provided on the other side of the filter box, a leakage hole is provided at the bottom of the impurity receiving plate, a support plate and a guide plate are fixed on the outer side wall of the filter box respectively, the motor is fixedly installed on the outer side wall of the support plate, and the guide plate is located below the drain port and corresponds to the drain port.

[0013] Preferably, an inspection door is hinged to the top of the filter box near the drain outlet, and a sealing gasket is provided at the hinge connection between the inspection door and the filter box.

[0014] Preferably, there are three sets of conveyor rollers, and the three sets of conveyor rollers are arranged in a triangle inside the filter box. The mesh belt wrapped around the outside of the conveyor rollers is a double-layer stainless steel filter mesh structure, and the outer wall of the mesh belt is polished.

[0015] The beneficial effects of this invention are as follows: This invention provides an environmental protection filtration and cleaning device for water pollution. By setting a collection bucket below the water inlet and inside the mesh belt, the filtered clean water can be directly collected by the collection bucket and discharged through the conduit. This prevents impurities from vertically penetrating the filter mesh and entering the sandwich layer of the double-layer mesh belt from the source, eliminating the interference of impurities on the transmission of the conveyor rollers, ensuring the stability of the mesh belt operation, and extending the service life of the mesh belt and conveyor rollers. In addition, a filter screen is added to the end of the conduit to achieve secondary filtration of the filtered water, further improving the water purification effect and preventing fine impurities from being discharged with the clean water. By rotating brush rollers that fit against the surface of the mesh belt inside the filter box and at the bottom of the scraper, and working in conjunction with the backwash water pipe and the pumping mechanism, the residual impurities on the surface of the mesh belt and inside the mesh are thoroughly cleaned through a dual cleaning method of brushing and high-pressure water backwashing. Compared with the traditional method of scraping with a single scraper, the cleaning is more thorough and effectively avoids secondary pollution caused by residual impurities falling into the clean water due to the impact of the reverse water flow when the mesh belt circulates to the bottom of the feed inlet, thus maintaining the filtration performance of the mesh belt at all times. The drive mechanism, consisting of a motor, gear set, pulley set, and belt, can synchronously perform multiple operations such as mesh belt conveying and filtration, impurity scraping and discharge, and brush roller rotation and washing. At the same time, the drive mechanism can also control the water pumping mechanism, consisting of a cylinder, piston, and connecting rod, to provide backwashing power to the backwash water pipe. The entire equipment does not require separate drive and control components for each functional mechanism, simplifying the equipment control process, greatly improving the ease of operation, reducing the investment in power components, lowering the equipment's manufacturing cost, and reducing subsequent energy consumption and maintenance costs, making it more practical. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a structural diagram of the internal structure of the filter box of the present invention; Figure 4 This is a diagram showing the location of the collection hopper inside the filter box of the present invention; Figure 5 This is a partial structural diagram of the front end of the collecting hopper of the present invention; Figure 6This is a bottom view of the collection hopper of the present invention; Figure 7 This is a side view of the collection hopper structure of the present invention; Figure 8 This is a structural diagram of the linkage between the drive mechanism and the pumping mechanism of the present invention; Figure 9 This is a structural diagram of the impurity receiving plate of the present invention.

[0017] In the diagram: 1. Filter box; 2. Inlet; 3. Outlet; 4. Conveyor roller; 5. Mesh belt; 6. Collection hopper; 7. Guide tube; 8. Brush roller; 9. Scraper; 10. Backwash pipe; 11. Nozzle; 12. Pumping mechanism; 1201. Cylinder; 1202. Piston; 1203. Connecting rod; 1204. Rectangular frame plate; 1205. Lever; 1206. Inlet pipe; 1207. Drain pipe; 13. Impurity receiving plate; 14. Sewage outlet; 15. Leakage hole; 16. Screw conveyor rod; 17. Drive mechanism; 1701. Motor; 1702. Drive gear; 1703. Driven gear; 1704. Drive pulley; 1705. Driven pulley; 1706. Belt. Detailed Implementation

[0018] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto. Example

[0019] like Figures 1-9 As shown, this embodiment provides an environmental protection filtration and cleaning device for water pollution, including a filter box 1. A water inlet 2 is provided on one side of the top of the filter box 1, and a drain outlet 3 is provided on the lower side of the filter box 1 away from the water inlet 2. A conveying roller 4 is rotatably arranged inside the filter box 1, and a mesh belt 5 is sleeved between the conveying rollers 4. A collection hopper 6 is provided inside the filter box 1 and below the water inlet 2. The collection hopper 6 is placed inside the mesh belt 5. A conduit 7 is connected to the bottom of the side of the collection hopper 6. The end of the conduit 7 away from the collection hopper 6 is connected to the drain outlet 3, and a filter screen is installed at the end of the conduit 7. A brush roller 8 is rotatably installed inside the filter box 1, and the brush roller 8 is in contact with the surface of the mesh belt 5. A scraper 9 is fixed inside the filter box 1, and the scraper 9 is in contact with the outer side of the mesh belt 5. A backwash pipe 10 is fixed inside the filter box 1, and the backwash pipe 10 is located inside the mesh belt 5. Multiple nozzles 11 are installed on the side of the backwash pipe 10 facing the mesh belt 5. A water pumping mechanism 12 is provided on the outside of the filter box 1. The water pumping mechanism 12 is connected to the backwash pipe 10. An impurity receiving plate 13 is provided inside the filter box 1 and below the mesh belt 5. A drain outlet 14 corresponding to the impurity receiving plate 13 is provided on the other side of the filter box 1. A leakage hole 15 is provided at the bottom of the impurity receiving plate 13. The impurity receiving plate 13 has a rotating spiral conveying rod 16 inside, and a drive mechanism 17 is provided on the outside of the filter box 1. The drive mechanism 17 is connected to the conveying roller 4, the brush roller 8, the spiral conveying rod 16 and the pumping mechanism 12 respectively.

[0020] After the wastewater to be filtered enters the filter box 1 through the inlet 2, it falls on the surface of the mesh belt 5 to complete the initial filtration. The filtered clean water passes through the mesh belt 5 and enters the internal collection hopper 6. After secondary filtration through the conduit 7, it is discharged from the drain outlet 3. The impurities trapped on the surface of the mesh belt 5 move with the mesh belt 5. They are first scraped off by the scraper 9, then brushed by the brush roller 8 and backwashed by the high-pressure atomization backwash of the backwash pipe 10 to complete the deep cleaning. The scraped and washed impurities fall into the impurity receiving plate 13 and are conveyed to the sewage outlet 14 by the screw conveyor 16. The residual clean water on the impurity receiving plate 13 flows back into the filter box 1 through the leakage hole 15, realizing the integrated continuous operation of wastewater filtration, impurity cleaning and discharge. The equipment is powered by a single power source provided by the drive mechanism 17, which synchronously links the conveyor roller 4, brush roller 8, screw conveyor 16 and water pumping mechanism 12. Example

[0021] The solution in Example 1 will be further described below with reference to its specific working method. In this embodiment, the scraper 9 is arranged parallel to the length direction of the mesh belt 5, and the length of the scraper 9 is adapted to the width of the mesh belt 5. It can scrape off impurities on the surface of the mesh belt 5 across the entire width, avoiding impurities remaining at the edge of the mesh belt 5. Its arrangement parallel to the length direction of the mesh belt 5 ensures the uniformity of the scraping operation. The scraper 9 is inclined and set on the top of the brush roller 8. The scraper 9 can prevent liquid and impurities from flying out of the filter box 1 when the mesh belt 5 is brushed, and can guide them downward. The bottom end of the scraper 9 is inclined towards the lower part of the impurity receiving plate 13. This inclined arrangement and the structure with the bottom end facing the lower part of the impurity receiving plate 13 allow the impurities scraped off by the scraper 9 to slide directly onto the impurity receiving plate 13 along its inclined surface, thus preventing impurities from accumulating on the surface of the scraper 9.

[0022] In this embodiment, the nozzle 11 is a high-pressure atomizing nozzle, which can atomize the backwash water into a high-pressure water flow. This can enhance the rinsing force on the fine residual impurities inside the mesh of the mesh belt 5, and avoid the deformation of the mesh belt 5 caused by the direct impact of the high-pressure water jet. Multiple nozzles 11 are linearly distributed at equal intervals on the backwash pipe 10, which can achieve uniform rinsing of the entire width of the mesh belt 5 surface without any rinsing dead corners. Moreover, the spraying direction of the nozzle 11 is opposite to the movement direction of the mesh belt 5, and the rinsing water flow forms a relative movement with the mesh belt 5, further improving the rinsing effect on the impurities inside the mesh.

[0023] In this embodiment, the drive mechanism 17 includes a motor 1701, a drive gear 1702, a driven gear 1703, a drive pulley 1704, a driven pulley 1705, and a belt 1706. The motor 1701 is fixedly installed on the outer wall of the filter box 1. The drive gear 1702 is fixedly installed on the output shaft end of the motor 1701, and the drive gear 1702 is fixedly connected to the end of the spiral conveying rod 16. The driven gear 1703 is fixedly installed on the end of the brush roller 8, and the driven gear 1703 meshes with the drive gear 1702. Both ends of the brush roller 8 are fixedly installed with drive pulleys 1704. The driven pulleys 1705 are fixedly installed on both ends of one of the conveying rollers 4. A belt 1706 is sleeved between the drive pulley 1704 and the driven pulley 1705 and is connected by transmission through the belt 1706.

[0024] After the motor 1701 starts, it drives the drive gear 1702 at the output shaft to rotate synchronously. The drive gear 1702 directly drives the spiral conveyor rod 16 to rotate, realizing the conveying of impurities. At the same time, the drive gear 1702 meshes with the driven gear 1703 to drive the brush roller 8 to rotate, realizing the brushing operation of the mesh belt 5. When the brush roller 8 rotates, it drives the drive pulleys 1704 at both ends to rotate synchronously. The drive pulleys 1704 are driven by the belt 1706 and the driven pulley 1705, driving the conveying roller 4 to rotate, thereby realizing the cyclic movement of the mesh belt 5 and completing the conveying operation of sewage filtration. Through the combination of gear meshing and pulley drive, the single motor 1701 realizes the synchronous linkage drive of the spiral conveyor rod 16, the brush roller 8, and the conveying roller 4.

[0025] In this embodiment, the pumping mechanism 12 includes a cylinder 1201, a piston 1202, a connecting rod 1203, a rectangular frame plate 1204, and a lever 1205. The cylinder 1201 is fixed to the outer wall of the filter box 1. The piston 1202 is slidably disposed inside the cylinder 1201. One end of the connecting rod 1203 is fixedly connected to the outer side of the piston 1202, and the other end of the connecting rod 1203 away from the piston 1202 extends to the outside of the cylinder 1201 and is fixedly connected to the rectangular frame plate 1204. The lever 1205 is eccentrically fixed to the drive belt. The outer wall of the wheel 1704, and the end of the lever 1205 away from the drive pulley 1704 extends into the interior of the rectangular frame plate 1204 and slides in cooperation with the rectangular frame plate 1204. The outer wall of the cylinder 1201 is connected to the water inlet pipe 1206 and the drain pipe 1207 respectively. The end of the water inlet pipe 1206 away from the cylinder 1201 is connected to the interior of the collection hopper 6. The end of the drain pipe 1207 away from the cylinder 1201 is connected to the backwash pipe 10. One-way valves are fixedly installed on both the water inlet pipe 1206 and the drain pipe 1207.

[0026] When the drive pulley 1704 rotates, it drives the eccentrically fixed lever 1205 to perform circular motion. The lever 1205 slides inside the rectangular frame plate 1204 and drives the rectangular frame plate 1204 to perform reciprocating linear motion. The rectangular frame plate 1204 drives the piston 1202 to reciprocate inside the cylinder 1201 through the connecting rod 1203. When the piston 1202 slides away from the water inlet pipe 1206, a negative pressure is formed inside the cylinder 1201, and the one-way valve on the water inlet pipe 1206 opens. The clean water in the collection hopper 6 is drawn into the cylinder 1201 through the inlet pipe 1206; when the piston 1202 slides towards the inlet pipe 1206, the internal pressure of the cylinder 1201 increases, the one-way valve on the inlet pipe 1206 closes, and the one-way valve on the drain pipe 1207 opens. The clean water in the cylinder 1201 is forced into the backwash pipe 10 through the drain pipe 1207, and finally sprayed out by the nozzle 11 to achieve the backwashing operation. It is driven by the drive mechanism 17 and does not require a separate pumping power.

[0027] In this embodiment, a precision filter screen is fixedly installed at one end of the water inlet pipe 1206 near the collection hopper 6, and the pore size of the precision filter screen is smaller than the pore size of the filter screen installed inside the conduit 7.

[0028] The precision filter can finely filter the clean water in the collection hopper 6, and can intercept small impurities in the collection hopper 6, preventing such impurities from entering the inlet pipe 1206, drain pipe 1207 and backwash pipe 10 with the backwash water, preventing the internal pipes and nozzles 11 of the pumping mechanism 12 from being blocked, and ensuring the normal operation of the pumping mechanism 12 and the backwash pipe 10.

[0029] In this embodiment, the lever 1205 has a cylindrical structure. The cylindrical structure of the lever 1205 can reduce the friction when it slides inside the rectangular frame plate 1204, reduce component wear, and improve the smoothness of transmission. In addition, a limit block is fixed at the end of the lever 1205 away from the drive pulley 1704. The inner side wall of the limit block is in contact with the outer side wall of the lever 1205. The limit block can effectively prevent the lever 1205 from detaching from the rectangular frame plate 1204 during the circular motion, and ensure the stability of the transmission cooperation between the lever 1205 and the rectangular frame plate 1204.

[0030] In this embodiment, a support plate and a guide plate are fixed to the outer side wall of the filter box 1. The motor 1701 is fixedly installed on the outer side wall of the support plate. The support plate provides a stable installation support base for the motor 1701, ensuring the stability of the motor 1701 during operation. The guide plate is located below the drain port 14 and corresponds to the drain port 14, so that impurities slide down the guide plate to the designated collection position, preventing impurities from scattering after being discharged from the drain port 14.

[0031] In this embodiment, an inspection door is hinged to the top of the filter box 1 near the drain outlet 3, which facilitates the staff to clean the inside of the equipment and troubleshoot the faults. A sealing gasket is provided at the hinge connection between the inspection door and the filter box 1.

[0032] In this embodiment, three sets of conveying rollers 4 are provided, and the three sets of conveying rollers 4 are arranged in a triangular pattern inside the filter box 1, which allows for a larger space inside the mesh belt 5, so as to facilitate the placement of the collection hopper 6 and the collection of purified water. The mesh belt 5, which is sleeved on the outside of the conveying rollers 4, is a double-layer stainless steel filter structure, and the outer wall of the mesh belt 5 is polished. The double-layer stainless steel filter structure of the mesh belt 5 has good filtration performance and structural strength, and extends the service life of the mesh belt 5. Example

[0033] The solutions in Embodiment 1 and Embodiment 2 will be further described below with reference to their specific working methods. When the equipment is started, the motor 1701 is turned on first. The motor 1701 drives the drive gear 1702 to rotate, which simultaneously realizes the rotation of the spiral conveyor rod 16 and the rotation of the brush roller 8 driven by the driven gear 1703. When the brush roller 8 rotates, it drives the conveyor roller 4 to rotate through the drive pulley 1704, belt 1706 and driven pulley 1705, so that the mesh belt 5 enters the cyclic motion state. At the same time, the drive pulley 1704 drives the lever 1205 to make a circular motion, which drives the piston 1202 of the pumping mechanism 12 to slide back and forth, completing the continuous operation of pumping and backwashing.

[0034] After the various mechanisms of the equipment have been operating stably, wastewater is continuously fed into the filter box 1 from the inlet 2. The wastewater falls onto the surface of the moving mesh belt 5, and large particles of impurities are trapped by the mesh belt 5. The clean water passes through the filter mesh belt 5 and enters the collection hopper 6. After secondary filtration by the filter screen at the end of the guide tube 7, it is discharged from the drain outlet 3. The impurities trapped on the surface of the mesh belt 5 move with the mesh belt 5 to the scraper 9. After being coarsely scraped across the full width by the scraper 9, most of the impurities slide down to the impurity receiving plate 13. A small amount of impurities remaining on the surface of the mesh belt 5 and in the mesh holes continue to move with the mesh belt 5 to the brush roller 8. The brush roller 8 rotates to perform fine brushing on the mesh belt 5. At the same time, the water pumping mechanism 12 pumps the clean water in the collection hopper 6 into the backwash pipe 10, and sprays it in the opposite direction onto the mesh belt 5 by the high-pressure atomizing nozzle 11, so as to achieve deep cleaning of the mesh belt 5. All the impurities that fall off during brushing and rinsing fall into the impurity receiving plate 13.

[0035] Impurities on the impurity receiving plate 13 move towards the drain outlet 14 under the rotational conveying action of the screw conveyor 16, and are finally discharged through the drain outlet 14. The residual clean water on the impurity receiving plate 13 flows back into the filter box 1 through the leakage hole 15, and is then discharged together with the filtered clean water. In the entire filtration and cleaning process, all mechanisms are driven by a single motor 1701, realizing continuous and integrated operation of sewage filtration, mesh belt cleaning, and impurity conveying and discharge. This effectively avoids problems such as impurity residue, secondary pollution, and complex control of multiple power sources in traditional equipment, improving filtration efficiency while reducing the production, use, and maintenance costs of the equipment.

[0036] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. An environmental protection filtration and cleaning device for water pollution, characterized in that, Includes a filter box (1), with an inlet (2) on one side of the top of the filter box (1), and a drain (3) on the lower side of the filter box (1) away from the inlet (2). A conveying roller (4) is rotatably installed inside the filter box (1), and a mesh belt (5) is sleeved between the conveying rollers (4). A collection hopper (6) is installed inside the filter box (1) and below the inlet (2), and the collection hopper (6) is placed inside the mesh belt (5). The filter box (1) is equipped with a rotating brush roller (8), a scraper (9) is fixed inside the filter box (1), and a backwash pipe (10) is fixed inside the filter box (1). Multiple nozzles (11) are installed on the side of the backwash pipe (10) facing the mesh belt (5). A water pumping mechanism (12) is provided on the outside of the filter box (1). The water pumping mechanism (12) is connected to the backwash pipe (10). An impurity receiving plate (13) is provided inside the filter box (1) and below the mesh belt (5). The impurity receiving plate (13) is internally mounted with a spiral conveying rod (16), and the filter box (1) is externally provided with a drive mechanism (17). The drive mechanism (17) is connected to the conveying roller (4), brush roller (8), spiral conveying rod (16) and pumping mechanism (12) respectively.

2. The environmental protection filtration and cleaning equipment for water pollution according to claim 1, characterized in that: The scraper (9) is set parallel to the length direction of the mesh belt (5), and the length of the scraper (9) is adapted to the width of the mesh belt (5). The scraper (9) is set at an angle on the top of the brush roller (8), and the bottom end of the scraper (9) is arranged at an angle towards the bottom of the impurity receiving plate (13).

3. The environmental protection filtration and cleaning equipment for water pollution according to claim 1, characterized in that: The backwash pipe (10) is located inside the mesh belt (5). The nozzle (11) is a high-pressure atomizing nozzle. Multiple nozzles (11) are linearly distributed at equal intervals on the backwash pipe (10), and the spray direction of the nozzles (11) is opposite to the movement direction of the mesh belt (5).

4. The environmental protection filtration and cleaning equipment for water pollution according to claim 1, characterized in that: The drive mechanism (17) includes a motor (1701), a drive gear (1702), a driven gear (1703), a drive pulley (1704), a driven pulley (1705), and a belt (1706). The motor (1701) is fixedly installed on the outer wall of the filter box (1). The output shaft end of the motor (1701) is fixedly installed with the drive gear (1702), and the drive gear (1702) is fixedly connected to the end of the spiral conveyor rod (16). The driven gear (1703) is fixedly installed at the end of the brush roller (8), and the driven gear (1703) meshes with the drive gear (1702). Both ends of the brush roller (8) are fixedly installed with drive pulleys (1704). The driven pulleys (1705) are fixedly installed at both ends of one of the conveyor rollers (4). A belt (1706) is sleeved between the drive pulley (1704) and the driven pulley (1705) and is connected by transmission through the belt (1706).

5. The environmental protection filtration and cleaning equipment for water pollution according to claim 4, characterized in that: The pumping mechanism (12) includes a cylinder (1201), a piston (1202), a connecting rod (1203), a rectangular frame plate (1204), and a lever (1205). The cylinder (1201) is fixed to the outer wall of the filter box (1). The piston (1202) is slidably disposed inside the cylinder (1201). One end of the connecting rod (1203) is fixedly connected to the outer side of the piston (1202). The other end of the connecting rod (1203) away from the piston (1202) extends to the outside of the cylinder (1201) and is fixedly connected to the rectangular frame plate (1204). The lever (1205) is eccentrically fixed to the drive pulley (…). The outer wall of the cylinder (1704) is connected to the water inlet pipe (1206) and the drain pipe (1207) respectively. The end of the water inlet pipe (1206) away from the cylinder (1201) is connected to the inside of the collection hopper (6), and the end of the drain pipe (1207) away from the cylinder (1201) is connected to the backwash pipe (10). A one-way valve is fixedly installed on both the water inlet pipe (1206) and the drain pipe (1207).

6. The environmental protection filtration and cleaning equipment for water pollution according to claim 5, characterized in that: The bottom of the side of the collecting hopper (6) is connected to a conduit (7). The end of the conduit (7) away from the collecting hopper (6) is connected to the drain outlet (3). A filter screen is installed at the end of the conduit (7). A precision filter screen is fixedly installed at the end of the water inlet pipe (1206) near the collecting hopper (6). The aperture of the precision filter screen is smaller than the aperture of the filter screen installed inside the conduit (7).

7. The environmental protection filtration and cleaning equipment for water pollution according to claim 5, characterized in that: The lever (1205) has a cylindrical structure, and a limiting block is fixed at the end of the lever (1205) away from the drive pulley (1704). The inner side wall of the limiting block is in contact with the outer side wall of the lever (1205).

8. The environmental protection filtration and cleaning equipment for water pollution according to claim 4, characterized in that: The filter box (1) has a drain port (14) on the other side corresponding to the impurity receiving plate (13). The bottom of the impurity receiving plate (13) has a leakage hole (15). The outer side wall of the filter box (1) is fixed with a support plate and a guide plate respectively. The motor (1701) is fixedly installed on the outer side wall of the support plate. The guide plate is located below the drain port (14) and corresponds to the drain port (14).

9. The environmental protection filtration and cleaning equipment for water pollution according to claim 1, characterized in that: A maintenance door is hinged to the top of the filter box (1) near the drain outlet (3), and a sealing gasket is provided at the hinge connection between the maintenance door and the filter box (1).

10. An environmental protection filtration and cleaning device for water pollution according to claim 1, characterized in that: There are three sets of conveying rollers (4), and the three sets of conveying rollers (4) are arranged in a triangle inside the filter box (1). The mesh belt (5) sleeved on the outside of the conveying rollers (4) is a double-layer stainless steel filter structure, and the outer wall of the mesh belt (5) is polished.

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