A multi-stage separation and filtration device for river channel management silt and debris and its use method

Abstract

The present invention relates to the technical field of separation and filtering devices. The present application discloses a multi-stage separation and filtering device for silt and debris in river channel management and a method for using the device, including a filter box, wherein a water inlet is provided at one end of the filter box, a drain outlet is provided at the other end, and a transmission filter screen is slidably arranged inside the filter box. The present invention controls the water flow by embedding the filter box into the downstream of the river channel, so that the water flows into the filter box and brings out the silt after being filtered by the transmission filter screen, thereby cleaning the silt in the runoff river water, solving the problem of poor filtering and dredging effect of existing river channel management filtering devices. After the silt is cleared out, it can be directly dried and recycled, and the transmission filter screen is driven to move by the impact of the water flow, making the filtering device more energy-saving and environmentally friendly, and there is no need to consider the power transmission problem when the transmission filter screen is running, thereby improving the application scope of the filtering device.

Description

Technical Field

[0001] The present invention relates to the technical field of separation and filtration devices, and specifically to a multi-stage separation and filtration device for silt and debris in river management and a method for using the device. Background Art

[0002] River channels are not only important water conservancy facilities, but also an important part of the ecological environment. Scour and siltation often occur in natural rivers, which are prone to water disasters and hinder the development of water conservancy. The deposition of silt in river channels will cause the river channels to become shallower, reduce the capacity of the river water body, and may also change the shape and depth of the river channel, leading to water flow instability and increasing flood risks. The growth of aquatic plants is restricted, affecting the health of the aquatic ecosystem.

[0003] In the existing river management, most of the river water needs to be pumped into the filtering device, filtered and then discharged. During the extraction, it is inconvenient to extract the silt at the bottom of the river, and the cleaning effect of the silt is very limited. During the filtration, the plant roots, plastic bags, silt and many small plastic particles in the water cannot be graded and processed. Simultaneous filtration is prone to blockage due to too much debris, and the mixed impurities composed of plant roots, plastic bags, silt and many small plastic particles after filtration are not convenient for subsequent recycling. Summary of the invention

[0004] In order to solve the problems that the existing river management filtering devices have poor filtering and dredging effects, multiple impurities are easily blocked when filtered together, and the mixed impurities after filtration are inconvenient for subsequent recovery and treatment, the present invention provides a river management sludge and debris multi-stage separation filtering device and a use method to solve the above problems.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A multi-stage separation and filtration device for river channel management silt and debris and a use method thereof, comprising a filter box, wherein one end of the filter box is provided with a water inlet, and the other end is provided with a drain outlet, a conveying filter screen is slidably arranged inside the filter box, both ends of the conveying filter screen are sleeved with transmission rollers, and the transmission rollers are rotatably connected to the inside of the filter box through bearings, a sludge discharge port is provided on the side wall of the filter box on the side of the top of the conveying filter screen, and a fixing rod is fixed inside the filter box above the conveying filter screen near the sludge discharge port, a plurality of magnetic strips are equidistantly fixed on the bottom surface of the fixing rod, a rotating shaft 1 is rotatably connected to the inside of the filter box near the water inlet end through bearings, a plurality of scraping hooks are equidistantly fixed on the outer surface of the rotating shaft 1, and a detachable collection box is fixed inside the filter box near the drain outlet end.

[0007] Furthermore, an anti-collapse plate is fixed on the outer surface of the filter box, a guide plate is fixed on the top surface of the conveying filter screen on the side of the water inlet, and a discharge scraper is slidably provided on the outer side surface of the conveying filter screen near the sludge discharge port, which is used to scrape out the sludge brought out from the outer surface of the conveying filter screen, and both ends of the discharge scraper are fixed on the inner wall of the filter box.

[0008] Furthermore, support plates are symmetrically fixed to the side of the filter box near the water inlet end, and a rotating shaft 2 is rotatably connected between the two support plates through a bearing. A number of blades are equidistantly fixed on the outer surface of the rotating shaft 2, and the height of one of the blades is equal to the distance between the rotating shaft 2 and the bottom surface of the filter box, and the heights of the remaining blades are all less than the distance between the rotating shaft 2 and the bottom surface of the filter box.

[0009] Furthermore, the conveying filter is arranged in a "Z" shape with the bottom facing the water inlet, and guide support plates are fixed to the upper and lower bottom surfaces at the upper corners of the conveying filter and the lower bottom surface at the lower corners, and another guide support plate is fixed to the upper top surface at the lower corner of the conveying filter, and the width of the other guide support plate is smaller than the distance between the scraper hook and the side wall of the filter box, and the outer sides of the guide support plates are fixed to the inner wall of the filter box.

[0010] Furthermore, a cleaning port is provided on the top surface of the filter box above the scraper hook, and a cleaning cover is provided inside the cleaning port. One end of the cleaning cover is rotatably connected to the filter box through a hinge, and a handle is fixed in the middle of the top surface of the other end of the cleaning cover. Several guardrails are equidistantly fixed on the outer surface of the filter box outside the water inlet.

[0011] Furthermore, a supporting rotating rod is rotatably connected to the rear side of the filter box below the rotating shaft 1 through a bearing, and pulleys are fixed to the rotating shaft 1, the rotating shaft 2, the supporting rotating rod and the upper transmission roller extending to one end of the rear side of the filter box, and gears are fixed to the rotating shaft 1 and the supporting rotating rod outside the pulley, and the two gears are meshed with each other, and the pulleys between the rotating shaft 1 and the transmission roller and between the supporting rotating rod and the rotating shaft 2 are all connected through transmission belts, and a protective cover is provided on the outer side of the gears, pulleys and transmission belts, and the protective cover is fixed to the rear side wall of the filter box.

[0012] Furthermore, a collecting filter is fixed at the bottom of the collecting box and at the side facing the drain outlet for filtering river water, an activated carbon filter plate is fixed at the bottom of the collecting box outside the collecting filter, a protective filter is fixed at the bottom of the collecting box on the side of the activated carbon filter plate away from the collecting filter, an installation groove is opened inside the filter box on the top surface of the drain outlet, a limit plate is fixed on the inner bottom surface of the filter box outside the collecting filter, the activated carbon filter plate and the protective filter, the collecting box is fixed in the installation groove by bolts, and the distance from the top surface of the collecting box to the top surface of the installation groove is greater than the height of the limit plate.

[0013] Furthermore, a cleaning plug plate is slidably provided inside the filter box on the top surface of the rotating shaft, and slots cooperating with the scraper hook are equidistantly provided on the cleaning plug plate toward one end of the rotating shaft. Moving blocks are symmetrically fixed to the top surface of the cleaning plug plate away from the scraper hook, and the moving blocks are slidably inserted inside the slide rail box. Each of the slide rail boxes is fixed on the top surface of the filter box, and a spring is fixed between the side of the moving block away from the scraper hook and the inner wall of the slide rail box.

[0014] Furthermore, each of the moving blocks and the spring is slidably sleeved with a sliding rod, both ends of the sliding rod are fixed on the inner wall of the slide rail box, and support blocks are fitted on the upper and lower sides of the front and rear ends of the bottom of the cleaning plug plate, and the outer side of each support block is fixed on the inner wall of the filter box.

[0015] Furthermore, a method for using a multi-stage separation and filtration device for river management sludge and debris is provided, the method comprising the following steps:

[0016] Step A, installing the filter box at the downstream water flow of the river to be filtered;

[0017] Step A1, place the filter box downstream of the river so that the water inlet faces the water flow, then put the filter box into the water flow so that the water inlet and the blades are submerged in the river water, and at the same time, the anti-collapse plate is attached to the ground on both sides, and the filter box is fixed on the river bank by a fixing cone;

[0018] Step A2: Adjust the river bank shape, bury the protective cover in the soil on both sides, and make the river water flow accurately into the water inlet when it flows to the filter box;

[0019] Step B: The impact of river water drives the blades to rotate, driving the transmission filter to move and the scraper hook to rotate;

[0020] Step B1, when the river water flows downward, the kinetic energy converted from the potential energy causes the river water to impact the blades and drive the second shaft to rotate toward the filter box. When the second shaft rotates, the supporting rotating rod is driven to rotate through the pulley and the transmission belt. When the supporting rotating rod rotates, the gear is driven to rotate, thereby driving the gear on the first shaft meshing with the gear to rotate in the opposite direction, thereby driving the first shaft to rotate in the opposite direction;

[0021] Step B2, when the rotating shaft rotates, the transmission roller is driven to rotate through another set of pulleys and the transmission belt. When the transmission roller rotates, the transmission filter is driven to move toward the drain outlet under the guidance of the guide support plate;

[0022] Step C: the river water enters the filter box and is graded, separated and filtered;

[0023] Step C1, after the river water enters the filter box through the water inlet, the scraper hook rotates toward the water inlet side to hook out plastic bags and tree branch-like debris in the river water;

[0024] Step C2, the conveyor filter takes away the silt in the river water through its own filtering function during the upward movement. The silt is driven to the bottom of the fixed rod and passes through the magnetic strip, which absorbs the iron metal in the silt, so that the metal and the silt are separated;

[0025] Step C3: When the sludge reaches the end of the conveying filter screen, the sludge is scraped by the unloading scraper and pushed by the subsequent sludge, and is pushed out from the sludge discharge port;

[0026] Step C4, the river water after filtering through the transmission filter to remove the silt continues to flow into the collection box, and after being filtered through the collection filter, the activated carbon filter plate and the protective filter, is discharged through the drain port;

[0027] Step D, cleaning the collection box and the cleaning plug board after filtering;

[0028] Step D1, after the scraper hook is rotated upward, it is inserted into the slot, and the strip-shaped debris hooked on the surface can be scraped off through the cleaning plugs on both sides, so that the debris is left on the cleaning plugs;

[0029] Step D2, when the cleaning plug plate scrapes off the debris, the scraping hook continues to rotate, pushing the cleaning plug plate to move. When the cleaning plug plate moves, it drives the moving block to move inside the slide rail box and compresses the spring until the scraping hook rotates over the cleaning plug plate. At this time, the thrust of the scraping hook on the cleaning plug plate is released. Under the push of the spring, the cleaning plug plate moves to reset, inserts the side of the next scraping hook, and continues to clean the subsequent scraping hooks;

[0030] Step D3: When there are a lot of debris collected inside the cleaning plug board, pull the handle, rotate and open the cleaning cover, pull out the debris inside the cleaning plug board for cleaning, and after cleaning, rotate the cleaning cover to close the cleaning port;

[0031] Step D4: When the collection filter needs to be cleaned, the bolts are screwed to release the fixation between the collection box and the filter box, and the collection box is pulled upward so that the collection box, the activated carbon filter plate and the protective filter are all moved above the limit plate and misaligned with the limit plate. Then the collection box is pulled out, and the collection filter, the activated carbon filter plate and the protective filter can be cleaned or replaced;

[0032] Step D5, after cleaning, align the bottom of the collection box and insert it into the filter box so that the top of the collection box is engaged in the installation groove, push the collection box downward so that the collection filter, activated carbon filter plate and the outer side of the protective filter are respectively attached to the side of the limit plate, and fix the collection box to the filter box with bolts.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. In the present invention, the water flow is controlled by embedding the filter box in the downstream of the river channel, so that the water flows into the filter box and brings out the silt after filtering through the transmission filter, thereby cleaning the silt in the runoff river water, solving the problem of poor filtering and dredging effect of the existing river channel management filtering device. After the silt is cleared out, it can be directly dried and recovered, and the transmission filter is driven to move by the impact of the water flow, making the filtering device more energy-saving and environmentally friendly, without considering the power transmission problem when the transmission filter is running, thereby improving the application range of the filtering device.

[0035] 2. The front scraper hook can scrape out plastic bags and other strip-shaped debris in the water, so that they can be separated from the silt for subsequent separate recycling and treatment. This solves the problem that the existing river management filtering device is prone to blockage due to the unified filtration of multiple impurities and the mixed impurities after filtration are inconvenient for subsequent recycling and treatment, thereby improving the practicality of the filtering device.

[0036] 3. After the silt and strip-shaped debris are cleaned, the collection filter and activated carbon filter plate in the drain outlet can further remove suspended debris and odor in the water flow, preventing the odor and harmful substances generated by garbage fermentation in the river from continuing to flow and spread. The magnetic strip at the top of the water inlet can absorb the iron metal in the silt, which can achieve further graded separation.

[0037] 4. The scraper hook drives the strip to the top. When it passes through the slot, the cleaning plug plate scrapes off the strip debris hooked on the scraper hook, and the scraper hook can be cleaned. After cleaning, the scraper hook continues to rotate downward to comb out the strip debris in the water flow to avoid the debris entangled and accumulated on the scraper hook and the need for cleaning later. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] Figure 1 This is a schematic structural diagram of a multi-stage separation and filtration device according to an embodiment of the present application;

[0040] Figure 2 yes Figure 1 A schematic diagram of the structure of the multi-stage separation and filtration device during cleaning in the illustrated embodiment;

[0041] Figure 3 yes Figure 1 A schematic diagram of a partial structure of a multi-stage separation and filtration device in the illustrated embodiment;

[0042] Figure 4 yes Figure 1A schematic cross-sectional view of the back structure of the multi-stage separation and filtration device in the illustrated embodiment;

[0043] Figure 5 yes Figure 1 A schematic front cross-sectional view of the structure of the multi-stage separation and filtration device in the illustrated embodiment;

[0044] Figure 6 yes Figure 1 A schematic back view of the internal structure of the multi-stage separation and filtration device in the illustrated embodiment;

[0045] Figure 7 yes Figure 1 A schematic diagram of the filter basket structure in the illustrated embodiment;

[0046] Figure 8 yes Figure 1 A schematic diagram of the cleaning plug board connection structure in the illustrated embodiment.

[0047] The meanings of the reference numerals in the figure are as follows: 1. filter box; 2. water inlet; 3. drain outlet; 4. transmission filter; 5. rotating shaft one; 6. scraper hook; 7. rotating shaft two; 8. support plate; 9. blade; 10. guide support plate; 11. support rotating rod; 12. gear; 13. pulley; 14. transmission belt; 15. protective cover; 16. guardrail; 17. anti-collapse plate; 18. cleaning cover; 19. guide plate; 20. unloading scraper; 21. collection box; 22. collection filter; 23. activated carbon filter plate; 24. protective filter; 25. installation groove; 26. limit plate; 27. cleaning plug plate; 28. support block; 29. ​​slot; 30. moving block; 31. slide rail box; 32. spring; 33. slide rod; 34. fixing rod; 35. magnetic strip; 36. transmission roller. DETAILED DESCRIPTION

[0048] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] Reference Figure 1-Figure 8, a multi-stage separation and filtration device for river channel management silt and debris and a method of using the device, comprising a filter box 1, a water inlet 2 is provided at one end of the filter box 1, a drain outlet 3 is provided at the other end, a conveying filter screen 4 is slidably arranged inside the filter box 1, both ends of the conveying filter screen 4 are sleeved with transmission rollers 36, and the transmission rollers 36 are rotatably connected to the inside of the filter box 1 through bearings, a sludge discharge port is provided on the side wall of the filter box 1 on the top side of the conveying filter screen 4, and a fixing rod 34 is fixed inside the filter box 1 above the conveying filter screen 4 near the sludge discharge port, and a plurality of magnetic strips 35 are equidistantly fixed on the bottom surface of the fixing rod 34, a rotating shaft 5 is rotatably connected to the inside of the filter box 1 near the water inlet 2 ends through bearings, and a plurality of scraping hooks 6 are equidistantly fixed on the outer surface of the rotating shaft 5, and a detachable collecting box 21 is fixed inside the filter box 1 near the drain outlet 3 end.

[0050] Specifically, an anti-collapse plate 17 is fixed to the outer surface of the filter box 1, a guide plate 19 is fixed to the top surface of the conveying filter screen 4 on the side of the water inlet 2, and a material scraper 20 is slidably fitted on the outer side surface of the conveying filter screen 4 near the sludge discharge port, which is used to scrape out the sludge brought out from the outer surface of the conveying filter screen 4. Both ends of the material scraper 20 are fixed to the inner wall of the filter box 1, and the conveying filter screen 4 is set to a "Z" shape with the bottom facing the water inlet 2, which is convenient for driving the sludge to rise and move out of the river water. The upper and lower bottom surfaces of the upper corners of the conveying filter screen 4 and the lower bottom surface of the lower corner are fixed with guide support plates 10, and another material scraper 20 is fixed to the upper top surface of the lower corner of the conveying filter screen 4. A guide support plate 10, the width of the other guide support plate 10 is smaller than the distance from the scraper hook 6 to the diameter of the side wall of the filter box 1, the outer sides of the guide support plates 10 are fixed on the inner wall of the filter box 1, and a cleaning port is provided on the top surface of the filter box 1 above the scraper hook 6, and a cleaning cover 18 is provided inside the cleaning port to facilitate opening the inside of the filter box 1 for cleaning and maintenance. One end of the cleaning cover 18 is rotatably connected to the filter box 1 through a hinge, and a handle is fixed on the middle of the top surface of the other end of the cleaning cover 18. Several guardrails 16 are equidistantly fixed on the outer surface of the filter box 1 outside the water inlet 2 to prevent fish or larger debris from entering the filter box 1 and causing damage.

[0051] On the basis of the above scheme, support plates 8 are symmetrically fixed on the side of the filter box 1 near the water inlet 2, and a rotating shaft 2 7 is rotatably connected between the two support plates 8. A plurality of blades 9 are equidistantly fixed on the outer surface of the rotating shaft 2 7, and the height of one blade 9 is equal to the distance between the rotating shaft 2 7 and the bottom surface of the filter box 1, and the heights of the remaining blades 9 are all less than the distance between the rotating shaft 2 7 and the bottom surface of the filter box 1. When the higher blades 9 rotate, they scrape the silt at the bottom to avoid the accumulation of silt at the bottom outside the filter box 1, making it convenient for the river water to drive the silt into the filter box 1. The rear side of the filter box 1 below the rotating shaft 1 5 is rotatably connected to a supporting rotating rod 11 through a bearing. 5, the rotating shaft 2 7, the supporting rotating rod 11 and the transmission roller 36 above are extended to one end of the rear side of the filter box 1, and a pulley 13 is fixed. The rotating shaft 1 5 outside the pulley 13 and the supporting rotating rod 11 are fixed with a gear 12. The two gears 12 are meshed with each other. The pulleys 13 between the rotating shaft 1 5 and the transmission roller 36, and between the supporting rotating rod 11 and the rotating shaft 2 7 are all connected through a transmission belt 14. A protective cover 15 is provided on the outside of the gear 12, the pulley 13 and the transmission belt 14, and the protective cover 15 is fixed on the rear side wall of the filter box 1. The transmission filter screen 4 and the scraper hook 6 are driven to operate through the impact of water flow, so that the filtering device is more energy-saving and environmentally friendly during operation.

[0052] As a further optimization scheme, a collecting filter 22 is fixed at the bottom of the collecting box 21 and on the side facing the drain outlet 3 for filtering river water. An activated carbon filter plate 23 is fixed at the bottom of the collecting box 21 outside the collecting filter 22 to remove odor in the river water. A protective filter 24 is fixed to the bottom surface of the collecting box 21 away from the collecting filter 22 of the activated carbon filter plate 23 to protect the activated carbon filter plate 23 and prevent debris, fish, etc. from entering the filter box 1 through the drain outlet 3. An installation groove 25 is opened inside the filter box 1 on the top surface of the drain outlet 3. A limiting plate 26 is fixed to the bottom surface of the filter box 1 outside the collecting filter 22, the activated carbon filter plate 23 and the protective filter 24. The collecting box 21 is fixed in the installation groove 25 by bolts. The distance from the top surface of the collecting box 21 to the top surface of the installation groove 25 is greater than the height of the limiting plate 26.

[0053] As a further optimization scheme, a cleaning plug plate 27 is slidably provided inside the filter box 1 on the top surface of the rotating shaft 5, and a slot 29 cooperating with the scraper hook 6 is equidistantly provided on the cleaning plug plate 27 toward one end of the rotating shaft 5. A moving block 30 is symmetrically fixed to the top surface of the end of the cleaning plug plate 27 away from the scraper hook 6, and the moving block 30 is slidably inserted in the slide rail box 31, each slide rail box 31 is fixed on the top surface of the filter box 1, and a spring 32 is fixed between the side of the moving block 30 away from the scraper hook 6 and the inner wall of the slide rail box 31, and a sliding rod 33 is slidably sleeved inside each moving block 30 and spring 32, and both ends of the sliding rod 33 are fixed on the inner wall of the slide rail box 31, and support blocks 28 are fitted on the upper and lower sides of the front and rear ends of the bottom of the cleaning plug plate 27, and the outer side of each support block 28 is fixed on the inner wall of the filter box 1 to support the cleaning plug plate 27, so that the cleaning plug plate 27 is more stable when moving.

[0054] A method for using a multi-stage separation and filtration device for river management sludge and debris, the method comprising the following steps:

[0055] Step A, installing the filter box 1 at the downstream water flow of the river to be filtered;

[0056] Step A1, place the filter box 1 downstream of the river so that the water inlet 2 faces the water flow, then put the filter box 1 into the water flow so that the water inlet 2 and the blades 9 are submerged in the river water, and at the same time, the anti-collapse plate 17 is attached to the ground on both sides, and the filter box 1 is fixed on the river bank by a fixing cone;

[0057] Step A2, adjusting the river bank shape, burying the protective cover 15 in the soil on both sides, and making the river water flow accurately into the water inlet 2 when flowing to the filter box 1;

[0058] Step B: The impact of river water drives the blades 9 to rotate, driving the conveying filter 4 to move and the scraping hook 6 to rotate;

[0059] Step B1, when the river water flows downward, the kinetic energy converted from the potential energy causes the river water to impact the blades 9 and drive the rotating shaft 2 7 to rotate toward the filter box 1. When the rotating shaft 2 7 rotates, the supporting rotating rod 11 is driven to rotate through the pulley 13 and the transmission belt 14. When the supporting rotating rod 11 rotates, the gear 12 is driven to rotate, thereby driving the gear 12 on the rotating shaft 1 5 meshing with the gear 12 to rotate in the opposite direction, thereby driving the rotating shaft 1 5 to rotate in the opposite direction;

[0060] Step B2, when the rotating shaft 15 rotates, the transmission roller 36 is driven to rotate through another set of pulleys 13 and the transmission belt 14. When the transmission roller 36 rotates, under the guidance of the guide support plate 10, the transmission filter screen 4 is driven to move toward the drain outlet 3;

[0061] Step C: the river water enters the filter box 1 and is graded, separated and filtered;

[0062] Step C1, after the river water enters the filter box 1 through the water inlet 2, the scraper hook 6 rotates toward the water inlet 2 to hook out plastic bags and tree branch-like debris in the river water;

[0063] Step C2, the conveying filter 4 takes away the silt in the river water through its own filtering function during the upward movement, and the silt is driven to the bottom of the fixed rod 34. When passing through the magnetic strip 35, the magnetic strip 35 absorbs the iron metal in the silt, so that the metal and the silt are separated;

[0064] Step C3: When the sludge reaches the end of the conveying filter screen 4, the sludge is scraped by the unloading scraper 20 and pushed by the subsequent sludge, and is pushed out from the sludge discharge port;

[0065] Step C4, the river water after filtering and removing the silt through the transmission filter 4 continues to flow into the collection box 21, and after being filtered through the collection filter 22, the activated carbon filter plate 23 and the protection filter 24, is discharged through the drain port 3;

[0066] Step D: Clean the collection box 21 and the cleaning plug plate 27 after filtering;

[0067] Step D1, after the scraping hook 6 is rotated upward, it is inserted into the slot 29, and the strip-shaped debris hooked on the surface can be scraped off through the cleaning plug plates 27 on both sides, so that the debris is left on the cleaning plug plates 27;

[0068] Step D2, when the cleaning plug plate 27 scrapes off the debris, the scraping hook 6 continues to rotate, pushing the cleaning plug plate 27 to move. When the cleaning plug plate 27 moves, it drives the moving block 30 to move inside the slide rail box 31 and compresses the spring 32 until the scraping hook 6 rotates over the cleaning plug plate 27. At this time, the thrust of the scraping hook 6 on the cleaning plug plate 27 is released. Under the push of the spring 32, the cleaning plug plate 27 moves and resets, inserts the side of the next scraping hook 6, and continues to clean the subsequent scraping hooks 6;

[0069] Step D3: When there are a lot of debris collected inside the cleaning plug plate 27, pull the handle to rotate and open the cleaning cover 18, pull out the debris inside the cleaning plug plate 27 for cleaning, and after cleaning, rotate the cleaning cover 18 to close the cleaning port;

[0070] Step D4: When the collection filter 22 needs to be cleaned, the bolts are screwed to release the fixation between the collection box 21 and the filter box 1, and the collection box 21 is pulled upward, so that the collection box 21, the activated carbon filter plate 23 and the protective filter 24 are all moved to the top of the limit plate 26 and misaligned with the limit plate 26, and then the collection box 21 is pulled out, and the collection filter 22, the activated carbon filter plate 23 and the protective filter 24 can be cleaned or replaced;

[0071] Step D5, after cleaning is completed, align the bottom of the collection box 21 and insert it into the filter box 1, so that the top of the collection box 21 is engaged in the installation groove 25, and push the collection box 21 downward so that the outer sides of the collection filter 22, the activated carbon filter plate 23 and the protective filter 24 are respectively attached to the side of the limit plate 26, and fix the collection box 21 to the filter box 1 with bolts.

[0072] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0073] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-stage separation and filtration device for river management silt and debris, Features: The invention comprises a filter box (1), wherein one end of the filter box (1) is provided with a water inlet (2), and the other end is provided with a water outlet (3), a conveying filter screen (4) is slidably arranged inside the filter box (1), both ends of the conveying filter screen (4) are sleeved with driving rollers (36), and the driving rollers (36) are rotatably connected to the inside of the filter box (1) through bearings, a sludge discharge port is arranged on the side wall of the filter box (1) on the top side of the conveying filter screen (4), and a fixing rod (34) is fixed inside the filter box (1) above the conveying filter screen (4) near the sludge discharge port, and a plurality of magnetic strips (35) are equidistantly fixed on the bottom surface of the fixing rod (34), a rotating shaft (5) is rotatably connected to the inside of the filter box (1) near the water inlet (2) through bearings, and a plurality of scraping hooks (6) are equidistantly fixed on the outer surface of the rotating shaft (5), and a detachable collecting box (21) is fixed inside the filter box (1) near the water outlet (3); A support plate (8) is symmetrically fixed to the side of the filter box (1) near the water inlet (2), and a second rotating shaft (7) is rotatably connected between the two support plates (8) via a bearing. A plurality of blades (9) are equidistantly fixed to the outer surface of the second rotating shaft (7), wherein the height of one of the blades (9) is equal to the distance between the second rotating shaft (7) and the bottom surface of the filter box (1), and the heights of the remaining blades (9) are all less than the distance between the second rotating shaft (7) and the bottom surface of the filter box (1); The rear side of the filter box (1) below the rotating shaft (5) is rotatably connected to a supporting rotating rod (11) via a bearing; the rotating shaft (5), the rotating shaft (7), the supporting rotating rod (11) and the transmission roller (36) above are all fixed with a pulley (13) at one end extending to the rear side of the filter box (1); the rotating shaft (5) and the supporting rotating rod (11) outside the pulley (13) are both fixed with a gear (12); the two gears (12) are meshed with each other; the pulleys (13) between the rotating shaft (5) and the transmission roller (36) and between the supporting rotating rod (11) and the rotating shaft (7) are all connected via a transmission belt (14); the gears (12), the pulleys (13) and the transmission belt (14) are sleeved with a protective cover (15) outside the gears (12), the pulleys (13) and the transmission belt (14), and the protective cover (15) is fixed to the rear side wall of the filter box (1); A collecting filter (22) is fixed inside the bottom of the collecting box (21) and the side facing the drain outlet (3) for filtering river water; an activated carbon filter plate (23) is fixed to the bottom of the collecting box (21) outside the collecting filter (22); a protective filter (24) is fixed to the bottom surface of the collecting box (21) on the side of the activated carbon filter plate (23) away from the collecting filter (22); a mounting groove (25) is provided inside the filter box (1) on the top surface of the drain outlet (3); a limiting plate (26) is fixed to the bottom surface of the filter box (1) outside the collecting filter (22), the activated carbon filter plate (23) and the protective filter (24); the collecting box (21) is fixed in the mounting groove (25) by bolts; and the distance between the top surface of the collecting box (21) and the top surface of the mounting groove (25) is greater than the height of the limiting plate (26); A cleaning plug plate (27) is slidably arranged inside the filter box (1) on the top surface of the rotating shaft (5), and slots (29) cooperating with the scraper hook (6) are equidistantly provided on the cleaning plug plate (27) at one end facing the rotating shaft (5). A moving block (30) is symmetrically fixed to the top surface of the end of the cleaning plug plate (27) away from the scraper hook (6), and the moving block (30) is slidably inserted inside the slide rail box (31). Each of the slide rail boxes (31) is fixed on the top surface of the filter box (1), and a spring (32) is fixed between the side of the moving block (30) away from the scraper hook (6) and the inner wall of the slide rail box (31); Each of the moving blocks (30) and the spring (32) is slidably sleeved with a slide rod (33), both ends of which are fixed to the inner wall of the slide rail box (31), and support blocks (28) are fitted on the upper and lower sides of the front and rear ends of the bottom of the cleaning plug plate (27), and the outer side of each support block (28) is fixed to the inner wall of the filter box (1).

2. The multi-stage separation and filtration device for river channel management sludge and debris according to claim 1, Features: An anti-collapse plate (17) is fixed to the outer surface of the filter box (1), a guide plate (19) is fixed to the top surface of the conveying filter screen (4) on the side of the water inlet (2), and a material discharge scraper (20) is slidably fitted on the outer side surface of the conveying filter screen (4) near the sludge discharge port for scraping off the sludge brought out from the outer surface of the conveying filter screen (4), and both ends of the material discharge scraper (20) are fixed to the inner wall of the filter box (1).

3. The multi-stage separation and filtration device for river channel management sludge and debris according to claim 2, Features: The transmission filter (4) is arranged in a "Z" shape with its bottom facing the water inlet (2); guide support plates (10) are fixed to the upper and lower bottom surfaces at the upper corners and the lower bottom surface at the lower corners of the transmission filter (4); another guide support plate (10) is fixed to the upper top surface at the lower corners of the transmission filter (4); the width of the other guide support plate (10) is smaller than the distance between the scraper hook (6) and the side wall of the filter box (1); and the outer sides of the guide support plates (10) are fixed to the inner wall of the filter box (1).

4. The multi-stage separation and filtration device for river channel management sludge and debris according to claim 3, Features: A cleaning port is provided on the top surface of the filter box (1) above the scraper hook (6), and a cleaning cover (18) is provided inside the cleaning port. One end of the cleaning cover (18) is rotatably connected to the filter box (1) via a hinge, and a handle is fixed to the middle of the top surface of the other end of the cleaning cover (18). A plurality of guardrails (16) are fixed at equal intervals on the outer surface of the filter box (1) outside the water inlet (2).

5. The method for using the multi-stage separation and filtration device for river channel management sludge and debris according to claim 4, Features: The method of use comprises the following steps: Step (A), installing the filter box (1) at the downstream flow point of the river to be filtered; Step (A1), placing the filter box (1) downstream of the river so that the water inlet (2) faces the water flow, and then placing the filter box (1) into the water flow so that the water inlet (2) and the blades (9) are submerged in the river water, while the anti-collapse plate (17) is attached to the ground on both sides, and the filter box (1) is fixed to the river bank by a fixing cone; Step (A2), adjusting the river bank shape, burying the protective cover (15) in the soil on both sides, and allowing the river water to accurately flow into the water inlet (2) when flowing to the filter box (1); Step (B), the impact of the river water drives the blades (9) to rotate, thereby driving the conveying filter (4) to move and the scraping hook (6) to rotate; Step (B1), when river water flows downward, the kinetic energy converted from the potential energy causes the river water to impact the blades (9) and drive the second rotating shaft (7) to rotate toward the filter box (1). When the second rotating shaft (7) rotates, the supporting rotating rod (11) is driven to rotate through the pulley (13) and the transmission belt (14). When the supporting rotating rod (11) rotates, the gear (12) is driven to rotate, thereby driving the gear (12) on the first rotating shaft (5) meshing with the gear (12) to rotate in the opposite direction, thereby driving the first rotating shaft (5) to rotate in the opposite direction; In step (B2), when the rotating shaft (5) rotates, the transmission roller (36) is driven to rotate through another set of pulleys (13) and the transmission belt (14). When the transmission roller (36) rotates, it drives the transmission filter (4) to move toward the drain outlet (3) under the guidance of the guide support plate (10); Step (C), the river water enters the filter box (1) and is subjected to graded separation and filtration; Step (C1), after the river water enters the filter box (1) through the water inlet (2), the scraper hook (6) rotates toward the water inlet (2) to hook out plastic bags, tree branches and other debris in the river water; In step (C2), the conveying filter (4) takes away the silt in the river water by its own filtering function during the upward movement, and the silt is driven to the bottom of the fixed rod (34). When the silt passes through the magnetic strip (35), the magnetic strip (35) absorbs the iron metal in the silt, so that the metal and the silt are separated; Step (C3), when the sludge reaches the end of the conveying filter (4), the sludge is scraped by the unloading scraper (20) and pushed by the subsequent sludge, and is pushed out from the sludge discharge port; Step (C4), the river water after filtering and removing silt through the transmission filter (4) continues to flow into the collection box (21), is filtered through the collection filter (22), the activated carbon filter plate (23) and the protection filter (24), and is discharged through the drain port (3); Step (D), cleaning the collection box (21) and the cleaning plug plate (27) after filtering; Step (D1), after the scraping hook (6) is rotated to the upper side, it is inserted into the slot (29), and the strip-shaped debris hooked on the surface can be scraped off through the cleaning plug plates (27) on both sides, so that the debris is left on the cleaning plug plates (27); Step (D2), when the cleaning plug plate (27) scrapes off the debris, the scraping hook (6) continues to rotate, pushing the cleaning plug plate (27) to move. When the cleaning plug plate (27) moves, it drives the moving block (30) to move inside the slide rail box (31) and compress the spring (32) until the scraping hook (6) rotates over the cleaning plug plate (27). At this time, the pushing force of the scraping hook (6) on the cleaning plug plate (27) is released. Under the push of the spring (32), the cleaning plug plate (27) moves to reset and is inserted into the side of the next scraping hook (6), and the subsequent scraping hooks (6) continue to clean; Step (D3), when there is a lot of debris collected inside the cleaning plug plate (27), pull the handle to rotate and open the cleaning cover (18), pull out the debris inside the cleaning plug plate (27) for cleaning, and after cleaning, rotate the cleaning cover (18) to close the cleaning opening; Step (D4), when it is necessary to clean the collecting filter (22), the bolts are turned to release the fixing of the collecting box (21) and the filter box (1), and the collecting box (21) is pulled upwards so that the collecting filter (22), the activated carbon filter plate (23) and the protective filter (24) are all moved to above the limiting plate (26) and are offset from the limiting plate (26), and then the collecting box (21) is pulled out, and the collecting filter (22), the activated carbon filter plate (23) and the protective filter (24) can be cleaned or replaced; After step (D5) cleaning is completed, the bottom of the collection box (21) is aligned and inserted into the filter box (1) so that the top of the collection box (21) is engaged in the mounting groove (25), and the collection box (21) is pushed downward so that the outer sides of the collection filter (22), the activated carbon filter plate (23) and the protective filter (24) are respectively attached to the side of the limit plate (26), and the collection box (21) is fixed to the filter box (1) by bolts.

Images