River water environment treatment equipment and use method thereof

Abstract

The invention relates to the field of riverway water treatment, in particular to riverway water environment treatment equipment and a using method thereof, static filtration is usually that a fixed grid or a filter screen is arranged on an overflowing section, when water flows through, impurities with the size larger than that of filter holes are intercepted, and in this way, although the structure is simple, the structure is not compact. However, the intercepted impurities are easily and quickly accumulated on the surface of the filter screen to form a compact adhesion layer, so that the water passing capacity is sharply reduced. The flexible filter grid is fully unfolded to form an open-type collecting bag facing the wall surface, so that when the filter plate scrapes the wall, loose pollutants which are scraped down and move along with water flow can be captured, and the loose pollutants and solid particles intercepted by the filter plate are separately collected and are prevented from entering a main water channel again.

Description

Technical Field

[0001] This invention relates to the field of river water treatment, specifically to a river water environment management device and its usage method. Background Technology

[0002] With social development and increased awareness of environmental protection, the environmental management of waterways such as rivers and lakes has received increasing attention. Steel dams, as a common water conservancy engineering facility, play an important role in flood control, water storage, and landscape creation.

[0003] In its diversion projects, water flow is usually guided through specific diversion channels. However, river water often contains various impurities such as suspended solids, organic matter, algae, and branches and leaves. Direct discharge or entry into downstream areas may affect water quality, silt up river channels, damage the ecosystem, and adversely affect subsequent water resource utilization.

[0004] The following problems exist in the existing technology and have not been adequately resolved: 1. The main methods of impurity treatment used in steel dam diversion channels or similar water flow channels include static filtration and simple interception. Static filtration usually involves setting a fixed grid or filter screen at the flow section. When water flows through, impurities larger than the filter holes are intercepted. Although this method is simple in structure, the intercepted impurities are prone to accumulate quickly on the surface of the filter screen, forming a dense adhesion layer, which leads to a sharp decrease in water flow capacity. 2. Under the long-term action of water flow, the inner wall of the flow channel is prone to the growth of biofilm, attached algae or sediment. These attached substances will gradually thicken, reduce the flow cross-section, and affect the flow pattern. Summary of the Invention

[0005] The purpose of this invention is to provide a river water environment treatment device and its usage method to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: A river water environment treatment device, comprising an annular guide channel, wherein the annular guide channel is provided with an inlet port and an outlet port, and a guide baffle is used to separate the water into two sections. A river filter plate assembly is provided in the annular guide channel, wherein the river filter plate assembly includes a support column fixedly installed on the outer wall of the guide baffle facing the channel side, a cantilever bracket is rotatably connected to the support column through a rotary joint, and a detachable filter plate is connected to the cantilever bracket through an installation rod.

[0006] Preferably, a dirt collection groove is provided on the flow channel wall adjacent to the water inlet port to collect suspended solids and sedimented impurities that are intercepted by the filter plate and brought to this location. An operable gate is provided at the outlet end of the dirt collection groove.

[0007] Preferably, the river filter plate assembly is further equipped with an adjustment component, which drives the cantilever support to drive the filter plate to rotate periodically within the annular guide channel.

[0008] Preferably, the adjustment component includes a support frame fixedly installed on the flow guide plate, a servo electric cylinder is installed on the side of the support frame, and a slider is connected to its telescopic end. The slider and the guide rail on the support frame form a sliding engagement.

[0009] Preferably, the end of the slider away from the servo cylinder is hinged to a transmission link, and the other end of the transmission link is hinged to the cantilever bracket, forming a link that drives the rotation of the cantilever bracket. The filter plate is provided with a wall attachment collection component near the edge of the inner wall of the annular guide channel. The wall attachment collection component is used to collect and process the loose biofilm and sediment scraped off when the filter plate rotates and scrapes the wall.

[0010] Preferably, the wall attachment collection assembly includes a first support arm fixedly mounted on the mounting rod, and a second support arm coaxially mounted via a rotary joint. The second support arm is rotatable around the axis of the mounting rod. A swing frame is also rotatably mounted on the mounting rod. The swing frame extends into a snap-fit ​​bracket towards the second support arm. The snap-fit ​​bracket and the second support arm form a slidable snap-fit ​​engagement. One end of the swing frame is provided with an arc-shaped guide groove.

[0011] Preferably, a positioning shaft is inserted in the arc-shaped guide groove. The positioning shaft can slide along the arc-shaped guide groove. The positioning shaft is symmetrically connected to two connecting rods by hinges. The other ends of the two connecting rods are respectively hinged to the first support arm and the second support arm to form a planar four-bar linkage mechanism.

[0012] Preferably, a flexible filter grid is provided in the area enclosed by the first support arm, the second support arm, and the positioning shaft. The flexible filter grid has pores to ensure water flow and can intercept and contain loose pollutants such as biofilm fragments.

[0013] Preferably, the method of using the aforementioned river water environment treatment equipment includes the following steps: S1. River water is introduced into the annular guide channel from the inlet port and flows through replaceable filter plates for dynamic filtration; S2. Start the adjustment component, the servo electric cylinder drives the slider to move linearly, and the linear motion is converted into the periodic rotation and oscillation of the cantilever bracket around the axis of the support column through the transmission link; S3. When the cantilever support rotates, it drives the filter plate to swing from the filtration position perpendicular to the main stream towards the dirt collection groove. It uses its inertia and gravity to push and slide large particles of impurities accumulated on the water-facing surface of the filter plate into the dirt collection groove for collection. S4. During the process of the filter plate swinging and scraping the wall, the wall attachment collection component moves synchronously. The swing frame is constrained by the cam track and drives the second support arm to unfold, so that the flexible filter grid forms an open collection bag for capturing the loose biofilm fragments scraped off.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, the rotational motion of the filter plate disrupts the stable adhesion layer of impurities on the filter screen surface, thereby reducing the risk of filter plate clogging and maintaining a long-term stable filtration flux. As the filter plate rotates from the annular guide channel to the dirt collection groove, its edge can scrape the inner wall of the annular guide channel, removing biofilm and deposits attached to the wall surface, preventing them from growing and accumulating on the inner wall, and keeping the flow section unobstructed.

[0015] In this invention, the wall attachment collection component disposed on the edge side of the filter plate can flexibly contain and collect loose biofilm fragments and flocculent precipitates during the scraping process, preventing loose material from entering the annular flow channel through the filter holes on the filter plate.

[0016] In this invention, the increased angle between the first support arm, the second support arm, and the positioning shaft allows the flexible filter grid to fully unfold, forming an open collection bag facing the wall. As a result, when the filter plate scrapes the wall, it can capture the loose pollutants that are scraped off and move with the water flow, thus achieving the separation and collection of solid particles intercepted by the filter plate and preventing them from re-entering the main waterway. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the annular flow guiding channel of the present invention; Figure 2 This is a plan view of the annular flow guide channel of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the annular flow guiding channel and river filtration component in this invention. Figure 1 ; Figure 4 This is a schematic diagram of the three-dimensional structure of the annular flow guiding channel and river filtration component in this invention. Figure 2 ; Figure 5 This is a three-dimensional structural diagram of the river filtration component in this invention; Figure 6 This is a top view of the river filtration component in this invention; Figure 7 This is a three-dimensional structural diagram of the wall attachment collection component in this invention; Figure 8 This is a three-dimensional structural diagram of the wall deposit collection component and filter plate in this invention; Figure 9This is a partial three-dimensional structural diagram of the wall attachment collection component in this invention. Figure 1 ; Figure 10 This is a partial three-dimensional structural diagram of the wall attachment collection component in this invention. Figure 2 .

[0018] In the diagram: 1. Annular flow guide channel; 11. Inlet port; 12. Outlet port; 13. Flow guide baffle; 14. Support column; 2. River filter plate assembly; 21. Cantilever bracket; 22. Filter plate; 23. Sludge collection groove; 24. Gate; 25. Mounting rod; 3. Adjustment assembly; 31. Support frame; 32. Servo electric cylinder; 33. Slider; 34. Transmission connecting rod; 4. Wall attachment collection assembly; 41. First support arm; 42. Second support arm; 43. Swing frame; 44. Clip frame; 45. Arc-shaped guide groove; 46. Positioning shaft; 47. Connecting rod; 48. Flexible filter grid; 5. Guide slide; 51. Guide block; 52. Compression spring; 53. Guide rod; 54. Guide roller; 55. Cam track. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 Please see Figures 1 to 10 The present invention provides a technical solution: a river water environment management device, which is applicable to steel dam diversion projects, and dynamically filters and cleans the impurities contained in the river water as it flows through the diversion channel; For example, the river filter plate assembly 2 is integrated inside the annular diversion channel 1 of the steel dam diversion project. The annular diversion channel 1 is provided with an inlet port 11 and an outlet port 12. The inlet port 11 and the outlet port 12 are separated by a diversion baffle 13. The river filter plate assembly 2 disclosed herein is set in the flow section of the diversion channel. When the river water is introduced from the inlet port 11 and flows through the annular diversion channel 1, it first contacts the river filter plate assembly 2 to filter out impurities. Then, the relatively clean water is discharged from the outlet port 12.

[0021] Specifically, in order to filter out impurities in the river water diversion project, the river filter plate assembly 2 includes a support column 14 fixedly installed on the outer wall of the diversion baffle 13 facing the flow channel. A cantilever bracket 21 is rotatably connected to the support column 14 through a rotary joint. A detachable filter plate 22 is connected to the cantilever bracket 21 through an installation rod 25. The filter plate 22 can be replaced with different pore sizes according to the water quality and filtration requirements. A dirt collection groove 23 is provided on the flow channel wall adjacent to the water inlet port 11 to collect suspended solids and sedimented impurities that are intercepted by the filter plate 22 and brought here. The outlet end of the dirt collection groove 23 is provided with an operable gate 24, which is closed during normal flow guiding and filtration operations to prevent the collected impurities from being disturbed by the water flow, and opened during cleaning operations to facilitate centralized discharge. The river filter plate assembly 2 is also equipped with an adjustment component 3, which drives the cantilever bracket 21 to drive the filter plate 22 to rotate periodically within the annular guide channel 1. The rotational motion of the filter plate 22 disrupts the stable adhesion layer of impurities on the filter screen surface, thereby reducing the risk of the filter plate 22 being clogged and maintaining a long-term stable filtration flow. As the filter plate 22 rotates from the annular guide channel 1 to the dirt collection groove 23, its edge can scrape the inner wall of the annular guide channel 1, remove the biofilm and deposits attached to the wall, prevent them from growing and accumulating on the inner wall, and keep the flow section unobstructed.

[0022] In this embodiment, the adjustment component 3 includes a support frame 31 fixedly installed on the flow guide baffle 13. A servo electric cylinder 32 is installed on the side of the support frame 31, and a slider 33 is connected to its telescopic end. The slider 33 forms a sliding fit with the guide rail on the support frame 31. The slider 33 is hinged to a transmission link 34 at one end away from the servo cylinder 32, and the other end of the transmission link 34 is hinged to the cantilever bracket 21, forming a link 47 that drives the rotation of the cantilever bracket 21. The filter plate 22 is provided with a wall attachment collection component 4 near the edge of the inner wall of the annular guide channel 1. The wall attachment collection component 4 is used to collect and process the loose biofilm and sediment scraped off when the filter plate 22 rotates and scrapes the wall. When the servo electric cylinder 32 drives the telescopic end to retract, the slider 33 makes a linear displacement along the guide rail. The linear motion is converted into a traction force on the cantilever bracket 21 through the transmission link 34, forcing the cantilever bracket 21 to rotate around the axis of the support column 14. The rotation of the cantilever bracket 21 causes the filter plate 22 to swing as a whole, so that its filter surface gradually turns from the direction perpendicular to the main flow direction to the direction of the sludge collection groove 23. During this process, large particles of impurities that are intercepted and accumulated on the water-facing surface of the filter plate 22 are pushed and slid down to the sludge collection groove 23 under the action of gravity and the movement of the filter plate 22. The wall attachment collection component 4, which is configured on the edge side of the filter plate 22, can flexibly block and collect and gather the loose biofilm fragments and flocculent sediment impurities during the scraping process, preventing the loose matter from entering the annular guide channel 1 through the filter holes on the filter plate 22.

[0023] In this embodiment, the wall attachment collection assembly 4 includes a first support arm 41 fixedly mounted on the mounting rod 25, and a second support arm 42 coaxially mounted via a rotary joint. The second support arm 42 can rotate around the axis of the mounting rod 25. A swing frame 43 is also rotatably mounted on the mounting rod 25. The swing frame 43 extends into a snap-fit ​​bracket 44 towards the second support arm 42. The snap-fit ​​bracket 44 and the second support arm 42 form a slidable snap-fit ​​engagement. One end of the swing frame 43 is provided with an arc-shaped guide groove 45. A positioning shaft 46 is inserted in the arc-shaped guide groove 45. The positioning shaft 46 can slide along the arc-shaped guide groove 45. The positioning shaft 46 is symmetrically connected to two connecting rods 47 by hinges. The other ends of the two connecting rods 47 are respectively hinged to the first support arm 41 and the second support arm 42 to form a planar four-bar linkage. A flexible filter grid 48 is provided in the area enclosed by the first support arm 41, the second support arm 42 and the positioning shaft 46. The flexible filter grid 48 has pores to ensure water flow, while intercepting and accommodating loose pollutants such as biofilm fragments. In the first stage, when the filter plate 22 rotates to scrape the wall, it drives the swing frame 43 to rotate around the mounting rod 25. The rotation of the swing frame 43 drives the second support arm 42 to rotate synchronously around the mounting rod 25 through the snap-fit ​​frame 44, so that it unfolds outward relative to the first support arm 41. During this process, the arc-shaped guide groove 45 on the swing frame 43 constrains the positioning shaft 46, forcing the positioning shaft 46 to move outward as the first support arm 41 and the second support arm 42 unfold. As the unfolding angle between the first support arm 41, the second support arm 42 and the positioning shaft 46 increases, the flexible filter grid 48 fully unfolds, forming an open collection bag facing the wall. Thus, when the filter plate 22 scrapes the wall, it can capture the loose pollutants that are scraped off and move with the water flow, achieving the separation and collection of solid particles intercepted by the filter plate 22, preventing them from re-entering the main waterway. In the first stage, when the cleaning operation is completed and the filter plate 22 needs to be reset to the normal filtration position, the swing frame 43 is driven to rotate in the opposite direction. The snap-fit ​​frame 44 drives the second support arm 42 to retract towards the first support arm 41. The positioning shaft 46 moves in the opposite direction under the guidance of the arc-shaped guide groove 45, pulling the two connecting rods 47 to fold, causing the included angle between the first support arm 41 and the second support arm 42 to decrease. The resulting planar four-bar linkage shrinks, and the flexible filter mesh 48 folds up and fits against the edge of the filter plate 22. During non-cleaning periods, the flexible mesh is folded up for protection, avoiding wear or tear under long-term water flow impact, and extending the replacement cycle of vulnerable parts.

[0024] In this embodiment, the cantilever bracket 21 is provided with a guide groove 5 along its length direction, and a guide block 51 is slidably disposed in the guide groove 5. A compression spring 52 is installed between the guide block 51 and the inner wall of the guide groove 5 to provide preload force for the guide block 51. A guide rod 53 is installed on the guide block 51, and a guide roller 54 is installed on the guide rod 53. A cam track 55 is provided on the side of the support column 14 corresponding to the cantilever bracket 21. Under the pre-tightening force of the compression spring 52, the guide roller 54 is always pressed against the contour surface of the cam track 55. The bottom end of the guide rod 53 is connected to the swing frame 43 so that the swing frame 43 can rotate around the mounting rod 25. When the cantilever bracket 21 rotates around the axis of the support column 14, the mounting rod 25 fixed on the cantilever bracket 21 drives the filter plate 22 to rotate, while the guide roller 54 is constrained by the cam track 55 and rolls along its cam track 55. The cam track 55 transmits the constraint force to the guide roller 54, which in turn causes the slider 33 to move linearly within the guide groove 5. The guide rod 53 then controls the swing frame 43 to generate a corresponding deflection angle around the support shaft. Controlling the deflection of the swing frame 43 ultimately controls the flexible filter grid 48 to expand and contract.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A river water environment treatment device, comprising a ring-shaped flow guide channel (1) provided with a water inlet port (11) and a water outlet port (12); a river filter plate assembly (2) is arranged in the ring-shaped flow guide channel (1) to intercept and accumulate large-particle impurities on the water-facing surface of the filter plate; the river filter plate assembly (2) comprises a support column (14) arranged in the ring-shaped flow guide channel (1); the support column (14) is fixedly installed on the outer wall of the flow guide partition plate (13) on the side facing the ring-shaped flow guide channel (1); a cantilever support (21) is rotatably connected to the support column (14) through a revolute pair; a filter plate (22) is detachably connected to the cantilever support (21) through a mounting plug (25); a silt collecting groove (23) is arranged on the flow channel wall adjacent to the water inlet port (11); and an adjusting assembly (3) is arranged on the river filter plate assembly (2) to drive the cantilever support (21) to periodically rotate the filter plate (22) in the ring-shaped flow guide channel (1). The diversion baffle (13) is arranged in the annular diversion passage (1) to divide the water inlet port (11) and the water outlet port (12); characterized in that:

2. The river water environment treatment device according to claim 1, characterized in that: the adjusting assembly (3) comprises a support frame (31) fixedly installed on the flow guide partition plate (13); a servo cylinder (32) is installed on the side of the support frame (31); a sliding block (33) is connected to the telescopic end of the servo cylinder (32) and is in sliding fit with the guide rail on the support frame (31); and a transmission connecting rod (34) is hingedly connected at one end to the sliding block (33) and at the other end to the cantilever support (21).

3. The river water environment treatment device according to claim 2, characterized in that: a wall surface attachment collecting assembly (4) is arranged on the edge of the filter plate (22) close to the inner wall of the ring-shaped flow guide channel (1); the wall surface attachment collecting assembly (4) comprises a first support arm (41) fixedly arranged on the mounting plug (25); a second support arm (42) is coaxially installed on the mounting plug (25) through a revolute pair and rotates around the axis thereof; a swing bracket (43) is rotatably installed on the mounting plug (25) and extends a clamping bracket (44) toward the second support arm (42); an arc-shaped guide groove (45) is formed in one end of the swing bracket (43); a positioning shaft rod (46) is inserted into the arc-shaped guide groove (45) and slides along the arc-shaped guide groove (45); two connecting rods (47) are symmetrically connected to the positioning shaft rod (46) through hinges and are hingedly connected at the other ends to the first support arm (41) and the second support arm (42), respectively; and a flexible filter grid (48) is arranged in the region surrounded by the first support arm (41), the second support arm (42) and the positioning shaft rod (46).

4. The river water environment treatment device according to claim 3, characterized in that: a guide slide groove (5) is arranged along the length direction of the cantilever support (21); a guide block (51) is slidably arranged in the guide slide groove (5) and is provided with a pre-tightening force by a compression spring (52); a guide rod (53) is installed on the guide block (51) and the bottom end thereof is connected to the swing bracket (43); and a guide roller (54) is installed on the guide rod (53). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cam track (55) is arranged on the side corresponding to the support column (14) and the cantilever support (21), and the guide roller (54) rolls on the profile surface thereof.

5. The river water environment treatment device according to claim 4, characterized in that: The clamping frame (44) and the second support arm (42) form a slidable clamping fit; The two connecting rods (47) and the first support arm (41), the second support arm (42) and the positioning shaft (46) constitute a planar four-bar linkage mechanism; The flexible filter mesh (48) has pores for intercepting and containing loose pollutants such as biofilm fragments.

6. The river water environment treatment device according to claim 2, characterized in that: The outlet end of the pollution collection groove (23) is provided with a controlled gate (24); The filter plate (22) is replaced according to water quality and filtering requirements; The rotating movement of the filter plate (22) can clean the surface attachments and scrape the inner wall of the annular flow channel (1).

7. The river water environment treatment device according to claim 3, characterized in that: When the filter plate (22) rotates to scrape the wall, the swing frame (43) drives the second support arm (42) to unfold, so that the flexible filter mesh (48) forms an open collecting bag; When the cleaning operation is completed and the filter plate (22) is reset, the swing frame (43) drives the second support arm (42) to fold, so that the flexible filter mesh (48) is folded and stored.

8. A method for using a river water environment treatment device, using the river water environment treatment device according to any one of claims 1 to 7, characterized in that, Comprising the following steps: S1. The river water is introduced into the annular flow channel (1) from the water inlet port (11), and flows through the replaceable filter plate (22) for dynamic filtration; S2. Start the adjusting assembly (3), the servo cylinder (32) drives the sliding block (33) to move linearly, and converts the linear motion into the periodic rotary swing of the cantilever support (21) around the axis of the support column (14) through the transmission connecting rod (34); S3. When the cantilever support (21) rotates, it drives the filter plate (22) to swing from the filtering position perpendicular to the main flow to the direction of the pollution collection groove (23), and uses its motion inertia and gravity to push and slide the large particle impurities accumulated on the water surface of the filter plate (22) to the pollution collection groove (23) for collection; S4. During the wall scraping process of the filter plate (22), the wall surface attachment collection assembly (4) acts synchronously, the swing frame (43) is driven by the cam track (55) to drive the second support arm (42) to unfold, so that the flexible filter mesh (48) forms an open collecting bag for capturing the loose biofilm fragments scraped off.

Images